zahra tofighi
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با توجه به ارزش غذایی میوه ها و سبزی ها، نگهداری و افزایش ماندگاری این محصولات از اهمیت فراوانی برخوردار است و به طور عمده با بازارپسندی آن ها ارتباط دارد. بنابراین، برای افزایش سود بازاری، حفظ کیفیت محصولات ضروری می باشد. از سوی دیگر استفاده از سموم شیمیایی برای سلامتی انسان خطرناک بوده و باعث ایجاد مقاومت به قارچ کش ها در میکروارگانیسم ها می شود، از این رو در عصر حاضر لزوم استفاده از نگهدارنده های طبیعی اهمیت فراوانی پیدا کرده است. در پژوهش حاضر کارایی تیمار نانوامولسیون اسانس مرزه سهندی (Satureja sahendica) جهت افزایش عمر قفسه ای و حفظ ارزش تغذیه ای میوه تمشک مورد بررسی قرار گرفت. برای این منظور غلظت های مختلف نانوامولسیون اسانس (صفر (شاهد)، 100، 200، 300 میکرولیتر بر لیتر) تهیه شده و میوه ها پس از غوطه وری به مدت 5 دقیقه در آن در سردخانه ای با دمای 1±4 درجه سانتی گراد و رطوبت نسبی %95-90 برای مدت 9 روز نگهداری شدند. صفات کیفی و فیتوشیمیایی در روزهای سوم، ششم و نهم پس از انبارمانی مورد سنجش قرار گرفتند. نتایج تجزیه واریانس داده ها نشان داد که در اکثر صفات مورد بررسی از لحاظ آماری اختلاف معنی داری بین میوه های تیمار شده و شاهد وجود داشت. نتایج تجزیه به عامل ها نیز نشان داد که دو عامل (%51) PC1 و (%3/18)PC2 بیشترین درصد از واریانس کل را به خود اختصاص دادند. به طور کلی نتایج این پژوهش نشان داد که نانوامولسیون اسانس مرزه سهندی می تواند به عنوان ترکیبی طبیعی و سازگار با محیط زیست و انسان، ضمن حفظ ارزش تغذیه ای محصول برداشت شده به افزایش عمر انبارمانی و کاهش ضایعات آن کمک کند.
کلید واژگان: انبارمانی, تجزیه به عامل, ضریب همبستگی, فلاونوئید, فنل -
مقدمه
گیاه آنغوزه (Ferula assa-foetida L.) گیاهی علفی از خانواده چتریان (Apiaceae) است. اثرات دارویی متعددی از اولئو رزین این گیاه در طب مدرن و سنتی مانند بهبود مشکلات گوارشی، اثرات ضد میکروبی، ضد دیابتی، اشتهاآور، حشره کش و... معرفی شده است.
هدفاین مطالعه با هدف بررسی سمیت حاد و تحت مزمن فراکشن کلروفرمی عصاره اولئوگام رزین آنغوزه در موش صحرایی انجام شد. عدم بروز سمیت این فراکشن می تواند تضمین کننده استفاده از آن در درمان و صنایع مختلف از جمله صنایع دارویی باشد.
روش بررسیموش های صحرایی در شش گروه نر و ماده (به طور جداگانه) در دوزهای مختلف (50 ،500 و 2000 میلی گرم بر کیلوگرم) و دو گروه کنترل (شاهد و DMSO) برای ارزیابی سمیت حاد انتخاب شدند. برای تست سمیت تحت مزمن به مدت 30 روز دوزهای 50 و 250 میلی گرم بر کیلوگرم از فراکشن مذکور به موش های صحرایی نر و ماده داده شد. سپس تغییرات هیستوپاتولوژیک مورد بررسی قرار گرفت.
نتایجتغییرات فیزیکی و رفتاری در شرایط سمیت حاد و تحت مزمن مشاهده نشد. دریافت غذا بین جنس نر و ماده گروه شاهد و DMSO با سایر گروه ها تفاوت معناداری داشت. در مطالعه متغیرهای بیوشیمیایی، تنها (AST) SGOT تفاوت معناداری با گروه کنترل (DMSO) در سمیت حاد و BUN ،ALP و (AST) SGOT در سمیت تحت مزمن نشان داد. همچنین هرگونه تغییر هیستوپاتولوژیک در اندام های طحال، کبد و کلیه مشاهده نشد.
نتیجه گیریاولئوگام رزین گیاه آنغوزه دارای اثرات سمی نیست و در تست سمیت حاد و تحت مزمن اثرات سمی از خود بروز نداد اما با این حال باید در دراز مدت با احتیاط مصرف شود.
کلید واژگان: آنغوزه, سمیت حاد, سمیت تحت مزمن, صمغBackgroundFerula assa-foetida is an herbaceous plant from Apiaceae family. Several pharmacological effects of oleo-gum resin of this plant were introduced in modern and traditional medicines such as digestive, antimicrobial, anti-diabetic, appetizing, insecticidal, and etc.
ObjectivesThis study aimed to acute and sub-chronic toxicity of chloroform fraction of oleo-gum extract of Ferula in Wistar rats. The safety of this can guarantee its use in treatment and various industries.
MethodsRats in six groups including male and female (kept separately) at different doses (50 mg/kg, 500 mg/kg, and 2000 mg/kg) and two control groups (control and DMSO( were selected to evaluate the acute toxicity of chloroform fraction of Ferula. For 30 days, 50 mg/kg and 250 mg/kg of sample was administrated to male and female rats. Mortality, appearance and behavioral changes, food intake, the weight of rats, and hematological, biochemical variables and histopathological changes were examined.
ResultsPhysical and behavioral changes were not observed in acute and sub-chronic toxicity conditions. Food intake significantly differed between male and female DMSO control and other groups. In biochemical variables study, only SGOT (AST) showed a significant difference from the control group (DMSO) in acute toxicity and BUN, ALP and SGOT (AST) in sub-chronic toxicity. Also, any histopathological change was observed in spleen, liver, and kidney organs.
ConclusionOleo-gum resin of F. assa-foetida has not toxic effects, so it should be used with caution in the long term.
Keywords: Ferula Assa-Foetida, Acute Toxicity, Sub-Chronic Toxicity, Essential Oil -
نشریه گیاهان دارویی، پیاپی 87 (Sep 2023)، صص 97 -113مقدمه
شنبلیله از نظر خواص درمانی یکی از پرمصرف ترین گیاهان دارویی است و در مطالعات مختلف اثرات دارویی متعددی از آن مشاهده شده است. عصاره دانه شنبلیله حاوی بسیاری از مواد موثره از جمله استرول ها (عمدتا بتا سیتوسترول) است.
هدفاین تحقیق به منظور تعیین روش استخراج بهینه برای بذر شنبلیله بر اساس میزان بتا سیتوسترول ردیابی شده در HPLC با استفاده از روش سطح-پاسخ (RSM) انجام شد.
روش بررسیابتدا حلال مناسب انتخاب شد. متغیرهای اصلی موثر بر بازده استخراج شامل دما، زمان، غلظت حلال و نسبت حلال به پودر برای بهینه سازی بهترین روش بررسی شدند. برای بهینه سازی تعداد 29 آزمایش مشخص شد که استخراج با استفاده از روش خیساندن دینامیکی انجام شده است. پس از یافتن روش مناسب، عصاره ها سه بار به دستگاه HPLC تزریق شد تا میزان بتا سیتوسترول تام آنها مشخص شود. سپس مدل سازی شد و فرمول نهایی بدست آمد.
نتایجآنالیز نتایج نشان داد که بهترین عصاره (بر اساس میزان بتا سیتوسترول کل و وزن)، با استفاده از روش استخراج خیساندن دینامیکی با اتانول 96 درصد در دمای 44 درجه سانتی گراد، مدت زمان 30 دقیقه، غلظت حلال 70 درصد و نسبت حلال به پودر 7:1 به دست آمد.
نتیجه گیرییافته ها نشان می دهد که این روش برای حداکثر استخراج ترکیبات بر اساس بتا سیتوسترول از دانه های شنبلیله کارآمدترین حالت به نظر می رسد.
کلید واژگان: شنبلیله, روش سطح-پاسخ, بتا سیتوسترول, HPLCBackgroundFenugreek is one of the most widely used medicinal plants in terms of therapeutic properties, and numerous pharmacological effects have been found in various studies. Fenugreek seed extract contains many effective substances, including phytosterols (mainly β-Sitosterol).
ObjectiveThis investigation was conducted to determine the optimal extraction method for fenugreek seeds based on the amount of β-Sitosterol detected on HPLC using a response surface methodology (RSM).
MethodsAt first, the appropriate solvent was selected. The main variables affecting the extraction efficiency,including temperature, time, solvent percentage, and the ratio of solvent to powder, were investigated to optimize the best method. Optimizing the number of 29 experiments determined that extraction was done using the dynamic maceration method. After finding the optimized method, the extracts were injected into the HPLC device three times to determine the amount of total β-Sitosterol. Then it was modelled, and the final formula was obtained.
ResultsThe analysis of results were shown that the optimal extract (based on the amount of total β-Sitosterol and weight), using the dynamic maceration extraction method with 96 % ethanol at a temperature of 44 ˚C, a duration of 30 minutes, a solvent percentage of 70 % and a ratio of solvent to powder of 7:1 was obtained.
ConclusionThe findings suggest the, this method seams the most efficient for maximum extraction of the β-Sitosterol compound from fenugreek seeds.
Keywords: Trigonella, Foenum-Graecum L., Box-Behnken, Design, Response Surface, Method -Sitosterol, HPLC -
The Stachys genus is a medicinal plant, with 34 different species, from Lamiaceae family that grows in Irano-Anatolian plateau. There are 12 species of Stachys native to Iran. Some species of Stachys have been used in traditional medicine of Iran, Turkey, Italy, Greece, China, and Japan for the treatment of various diseases like inflammation, common cold, and etc. Some researchers have noted many biological effects, such as cytotoxic, antioxidant, immunomodulator, anti-inflammatory and anti-bacterial effects for the members of this genus. There are a few evidences on phytochemical constituents of S. byzanthinaThe aim of this study was phytochemical investigation of various extracts of this plant to obtain the most efficient fractions and compound(s) to study the antimicrobial effects of this plant. Separation and isolation of compounds was performed by various methods of chromatography. The structure of each compound was identified by spectroscopic methods.Antimicrobial studies were performed on different fractions of S. byzantina by microdilution method and to determine the Minimum Inhibitory Concentration (MIC), agar well diffusion was done.Ethyl acetate fraction has the highest total phenol contents (1082.05 mg GAE/g fraction) and antioxidant capacity (IC50= 1.23 mg/ml). Also, ethyl acetate fraction, the most potential fraction of S. byzanthina, was demonstrated the largest inhibition zone (17.5 ± 0.7 mm) with 5 mg/ml in MIC against Staphylococcus auresus.Apigenin and its derivatives were isolated from this fraction and according to literature; they can be responsible for antibacterial activity of this fraction of S. byzanthina.
Keywords: Stachys byzantine, Antibacterial agents, Ethyl acetate fraction, Staphylococcus aureus, Minimum Inhibitory Concentration (MIC), Apigenin -
Objective(s)
Influenza A virus (IAV) is a contagious illness. Different species of Scutellaria genus are used as a traditional remedy to reduce influenza symptoms. This study aimed to investigate the anti-influenza capacity of several species of Iranian Scutellaria and identify active compounds of the most potent species for the first time.
Materials and MethodsSome Iranian species of Scutellaria were collected from different regions of Iran, including S. pinnatifida with mucida, viridis, and alpina subspecies; S. tournefortii; S. tomentosa; S. persica. They were fractionated to chloroform and methanol. The total phenols and flavonoids of samples were examined by the folin-ciocalteau and aluminum-flavonoid complex methods, respectively. The 50% cytotoxic concentrations (CC50) on MDCK cells and non-cytotoxic concentrations (NCTC) were determined by MTT assay. The percentage of cell protection against IAV and their effect on virus titer were investigated in pre-, post-, and co-penetration treatment groups. Phytochemicals of the most effective species were isolated by various chromatographic methods and identified by different spectroscopic methods.
ResultsMethanol fraction of S. pinnatifida subsp. viridis demonstrated the highest amounts of flavonoid content and best activity against influenza A virus in all combination treatments, which reduced the virus titer by 5 logs with no cytotoxicity. Kaempferol-3-O-glucoside, quercetin-3-O-glucoside, apigenin-4′-methoxy-7-O-glucoside, luteolin, and luteolin-7-O-glucoside were purified and identified from this species.
ConclusionScutellaria pinnatifida subsp. viridis can be introduced as a source of flavonoids with acceptable anti-influenza activity. S. tomentosa also showed potent antiviral effects and is a candidate for elucidation in further studies.
Keywords: Antiviral, Flavonoids, Folin-ciocalteau reagent, H1N1 virus, MTT Assay, Scutellaria -
Background and objectives
The oleo-gum resin from Ferula gummosa</em> Bioss. is commercially important. Variability of geographic location has shown a deep effect on essential oil of different genus of plants. Thus, evaluation of oleo-gum resin of Ferula gummosa</em> from different locations is important for further studies. In the present study, phytochemicals profile of essential oil of oleo-gum resins from F. gummosa</em> in different geographic location and various bioclimates of Iran, were studied.
MethodsThe oleo-gum resin of F. gummosa</em> was collected from different regions of Iran. The essential oils of the samples were extracted by Clevenger apparatus and were analyzed by GC-MS.
ResultsThe highest amount of essential oil compared was observed in the samples from Damghan area (24.0%), Firuzkuh area (22%) and Kalat-e-Naderi area (22%). The variability in the oil composition of different samples exhibited a notable difference in monoterpenes content from 39.15 % to 87.48%. Based on GC-MS analysis, the major components were β</em>-pinene (5.11-63.80 %), sabinene (3.37-30.69%), α</em>-pinene (4.43-12.72%) and δ</em>-carene (2.38-10.23 %). The highest concentrations of β</em>-pinene (63.80%) and sabinene (30.69%) were observed in the Shiraz and Torbat-e-Jam essential oils, respectively. The highest amounts of α</em>-pinene (12.72%) and δ-</em>carene (10.23%) were recorded in Firuzkuh and Shiraz areas, respectively.
ConclusionSignificant variation in the component of the essential oils from different oleo-gum resins can be used to improve the knowledge about the endemic medicinal plants.
Keywords: volatile oil, Ferula gummosa, oleo-gum resin, β-pinene, sabinene -
امروزه تلاش های زیادی در سطح جهان برای یافتن روش های جایگزین در کنترل ضایعات پس از برداشت محصولات باغبانی صورت می گیرد. در پژوهش حاضر اثر غلظت های مختلف ملاتونین (001/0 ، 01/0 و 1/0 میلی مولار) بر افزایش عمر انباری تمشک مورد بررسی قرار گرفت. میوه ها پس از 5 دقیقه غوطه وری در سردخانه ای با دمای 1±4 درجه سلسیوس و رطوبت نسبی 95-90 درصد به مدت 9 روز نگهداری شدند. نتایج نشان داد که بالاترین میزان pH و TSS در تیمار شاهد روز نهم و TA در تیمار 001/0 میلی مولار در روز سوم مشاهده شد که مقادیر آن ها به ترتیب برابر با 63/3، 62/0 میلی گرم اسیدسیتریک در 100 میلی لیتر آب میوه و 31/16 درجه بریکس بود. بیشترین میزان فنل و فلاونویید کل به ترتیب با مقادیر 37/25 میلی گرم اسیدگالیک در 100 میلی لیتر آب میوه در غلطت 001/0 میلی مولار ملاتونین و 60/9 میلی گرم کویرستین در 100 میلی لیتر آب میوه در غلظت 1/0 میلی مولار ملاتونین در روز سوم مشاهده شد. همچنین نتایج تجزیه به عامل داده ها نیز موید این امر بود که دو عامل PC1 (64 درصد) و PC2 (8/14 درصد) بیشترین نقش را در دسته بندی تیمارها داشته اند. به طور کلی نتایج این پژوهش نشان داد که تیمار 001/0 میلی مولار ملاتونین می تواند، به عنوان یک ترکیب طبیعی سازگار با محیط زیست و انسان ضمن حفظ ارزش تغذیه ای تمشک برداشت شده، به افزایش عمر انباری و کاهش ضایعات آن کمک کند.کلید واژگان: تجزیه به عامل, تنظیم کننده رشد, ضریب همبستگی, فلاونوئید, فنلNowadays, many efforts are being in the worldwide to find alternative methods for controlling postharvest horticultural waste. In the present study, the effect of different concentrations of melatonin (000.001, 0.01 and 0.1 mM) on increasing the storage life of raspberries was investigated. After 5 min immersion, the fruits were maintained in a cold storage with a 4±1 °C 90-95%RH for 9 days. The results showed that the highest level of pH and TSS were observed in the control treatment on the ninth day and TA in the treatment of 0.001 mmol on the third days of storage with mean 3.64 and 0.62 mg citric acid/100 ml fruit Juice and 16.31 ̊brix, respectively. The highest levels of total phenol and flavonoids content were observed with 25.37 mg GAE/ 100 ml juice and 9.60 mg QE/ 100 ml juice on the third day storage, respectively. The results of data factor analysis also confirmed that the two factors PC1 (64%) and PC2 (14.8%) had the most role in the classification of treatments. In general, the results of this study showed that treatment with 0.001 mM melatonin, as a natural compound compatible with the environment and humans, in addition to the maintaining the nutritional values of the harvested raspberry it,s can increased storage life and reduced waste of fruits.Keywords: correlation coefficient, factor degradation, flavonoid, Growth regulator, phenol
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مقدمه
گیاهان جنس Scutellaria، با نام عمومی skullcap و با نام فارسی بشقابی شناخته می شوند. این گیاهان متعلق به خانواده Lamiaceae یا نعناییان هستند. در ایران 22 گونه از جنس بشقابی وجود دارد که 10 گونه از آنها بومی ایران است. گیاهان این جنس دارای اثرات متعددی از جمله محافظت کننده عصبی، محافظت کننده کبد، ضدسرطان، ضدمیکروبی، ضدویروسی و آنتی اکسیدانی هستند. همچنین در شرایط بی خوابی و زوال عقل موثر هستند.
هدفهدف از این مطالعه بررسی ترکیب اسانس ها و عرق های برخی از گونه های بومی بشقابی ایران بود.
روش بررسیقسمت های هوایی گیاه بشقابی سنبله ای (Scutellaria pinnatifida) با زیرگونه های مختلف viridis، mucida و alpine و گونه های بشقابی جنگلی (Scutellaria pinnatifida) و بشقابی نمدین (Scutellaria tomentosa) از مناطق مختلف ایران جمع آوری شدند. اسانس و عصاره هگزانی عرق های گیاهان منتخب در این جنس به روش تقطیر با آب و توسط دستگاه کلونجر به دست آمد و سپس توسط دستگاه GC-MS مورد تجزیه و تحلیل قرار گرفت.
نتایجنتایج این مطالعه نشان داد که ترکیبات جرماکرن- د، مشتقات کاریوفیلن و لینالول در اسانس این گیاهان به وفور یافت می شود. ترپنوییدهای اصلی موجود در عرق این گیاهان، لینالول و ترکیب 1-اکتن-3 -ال بود.
نتیجه گیرینتایج حاصل از آنالیز اسانس ها و عرق های گونه های مختلف بشقابی نشان داد که عوامل جغرافیایی مانند ارتفاع، فصل جمع آوری گیاهان و... می تواند بر تولید متابولیت های ثانویه گیاهی موثر باشد.
کلید واژگان: بشقابی, اسانس, عرق, لینالول, کاریوفیلن, جرماکرن- دBackgroundPlants of the genus Scutellaria, commonly known as skullcap, belong to the Lamiaceae family. There are 22 species of Scutellaria in Iran, 10 species of which are native to Iran. Plants of this genus have several effects including neuroprotective, hepatoprotective, anti-cancer, antimicrobial, antiviral, and antioxidant. They are also effective in insomnia and dementia conditions.
ObjectiveThe aim of this study was to investigate the composition of essential oils and aromatic waters of some native Scutellaria species from Iran.
MethodsAerial parts of Scutellaria pinnatifida with different subspecies such as mucida, viridis, and alpina, Scutellaria tournefortii, and Scutellaria tomentosa were collected from different regions of Iran. The essential oils and hexane extracts of aromatic waters of selected plants in this genus were obtained by hydrodistillation with clevenger type apparatus and analyzed by GC-MS.
ResultsThe results of this study showed that germacrene D, caryophyllene derivatives and linalool are found in abundance in the essential oils of these plants. The main terpenoids in the aromatic waters of these plants were linalool and 1-octen-3-ol.
ConclusionThe analysis of the essential oils and aromatic waters of Scutellaria species demonstrated that different geographical factors such as altitude and the season of plant collection can be effective on the production of plant secondary metabolites.
Keywords: Scutellaria, Essential oil, Aromatic water, Linalool, Caryophyllene, Germacrene D -
Background and objectives
Stachys L. genus from the Lamiaceae family is distributed worldwide. It is used for medicinal purposes in traditional medicine. Stachys laxa as an endemic species and S. byzantina which grow in the north of Iran were selected in this study for analyzing the chemical compositions of the volatile oils and investigation of some biological activities.
MethodsThe chemical constituents of the oils from the aerial parts were analyzed by GC-MS. The antimicrobial activity of the essential oils was investigated by disc diffusion method and the MIC was determined. Toxicity and total phenolics content were surveyed by brine shrimp lethality and Folin-Ciocalteu assays, respectively. Two different methods (DPPH and FRAP) were conducted to assess the antioxidant activity of both extracts.
ResultsSixty-one compounds were identified in the oils, whereas sesquiterpenes were the major components in both volatile oils. Hexadecanoic acid (16.65%) and hexahydrofarnesyl acetone (20.41%) were the main compounds in S. laxa and S. byzantina, respectively. The ethyl acetate fraction of S. byzantina showed the strongest antioxidant activity (DPPH IC50: 18.3 µg/mL; FRAP: 687.4 FeSO4.7 H2O mg /g extract) and the highest total phenolics content (115.43 gallic acid mg /g extract) compared to other fractions. The volatile oil of S. laxa showed more potent antimicrobial activity on Salmonella paratyphi A (MIC: 5.62 µg/mL).
ConclusionBoth species were safe and showed no toxicity. They demonstrated strong antioxidant properties. The essential oil of S. laxa showed potent activity against Salmonella paratyphi A.
Keywords: Antimicrobial, Antioxidant, Essential oil, Stachys byzantina, Stachys laxa -
Objective
Many pharmaceutical factories have dramatically improved the quality of herbal remedies in cancer treatment. The results of somestudies have shown anticancer effect of Astrodaucus genus. Therefore, the aim of this article was to review the chemical ingredients and biological effects of Astrodaucus genus especially A. persicus from the family Apiaceae (Umbelliferae).
Materials and MethodsOnline databases ScienceDirect, PubMed, Scopus, and Google Scholar were searched using the keywords Astrodaucus, Apiaceae, Biologic, Phytochemistry, and Benzodioxole to retrieve studies published between 1970 and 2020.
ResultsThe Astrodaucus genus has two species, Astrodaucus persicus (Boiss.) Drude and Astrodaucus orientalis (L.) Drude. In this genus, 5 new biologically active phytochemicals with benzodioxole structure were introduced and their biological effects were assessed.
ConclusionSince many of the most commonly used anticancer drugs such as etoposide, teniposide, podophyllotoxin and sanguinarine have benzodioxole structureand according to the results of biological tests, it seems that more researchwith these perspectives should be done on this genus.
Keywords: Astrodaucus, Apiaceae, Biologic, Phytochemistry, Benzodioxole -
مقدمه
میوه های چتریان به عنوان ادویه رایج برای پیشگیری و درمان بسیاری از بیماری های مزمن به کار می روند.
هدفمطالعه حاضر به بررسی خواص بیولوژیک میوه های مختلف از قبیله های گوناگون خانواده چتریان می پردازد و با مقایسه آنها سعی دارد فراکشن (های) دارای خواص بالقوه شامل پیشگیری از سرطان را برای مطالعات آینده بیابد.
روش بررسیمیوه کرفس، زیره کرمانی، جعفری، انیسون، بادیان رومی (زنیان)، گشنیز، رازیانه، شوید، گلپر، آنقوزه، زیره سبز و هویج به وسیله متانول 80 درصد عصاره گیری و سپس عصاره ها به ترتیب با پترولیوم اتر، کلروفرم و اتیل استات فراکشنه و باقیمانده فراکشن متانولی نامیده شد. میزان سمیت سلولی عصاره تام و فراکشن ها به وسیله تست BST و MTT در برابر سلول های سرطانی و نرمال بررسی گردید، میزان اثر آنتی اکسیدانی و فنول تام نمونه ها به ترتیب با تست FRAP و فولین سیوکالتو تعیین گردید.
نتایجدر تست BST، سمیت عمومی فراکشن های اتیل استات (میانگین داده ها) بیش از سایر نمونه ها بود. سمی ترین فراکشن ها در برابر سلول های سرطانی 29-HT ،231-MB-MDA و A549 از قبایل Ammineae و Peucedaneae بودند و فراکشن های حاوی مقادیر بالای ترکیبات فنولی و با قدرت آنتی اکسیدانی متعلق به قبیله Ammineae بودند.
نتیجه گیری:
میوه های خانواده چتریان دارای اثرات قابل توجه بیولوژیک می باشند، به همین دلیل جداسازی ترکیبات فیتوشیمیایی از فراکشن های فعال با اثر سمیت سلولی، در مطالعات آینده پیشنهاد می گردد.
کلید واژگان: چتریان, میوهها, سمیت سلولی, قدرت احیاکنندگی, محتوای فنولیBackgroundApiaceae fruits as common spices used for prevention of many chronic diseases including cancer.
ObjectiveThe present study compared the biological effects of different fruits from various Apiaceae tribes to compare and find the fraction source(s) with potential characteristics for further investigation including cancer prevention.
MethodsFruits of Apium graveolens L. (celery), Bunium persicum (Boiss.) B.Fedtsch. (black cumin), Petroselinum crispum (Mill.) Fuss (parsley), Pimpinella anisum L. (anise), Trachyspermum ammi (L.) Sprague (ajwain), Coriandrum sativum L. (coriander), Foeniculum vulgare Mill. (fennel), Anethum graveolens L. (dill), Heracleum persicum Desf. ex Fisch., C.A.Mey. & Avé-Lall. (Persian hogweed), Ferula assa-foetida L. (asafoetida), Cuminum cyminum L. (cumin) and Daucus carota L. (carrot) were extracted with 80 % methanol and fractionated by petroleum ether, chloroform, ethyl acetate and methanol, respectively. For different fractions and total extract of all 12 samples, cytotoxicity by brine shrimp test (BST) and MTT assay against cancer and normal cell (foreskin fibroblast cells), antioxidant effects by FRAP, and total phenols by Folin-Ciocalteu method were measured.
ResultsThe general toxicity of ethyl acetate fractions (mean of data) was higher than others in the brine shrimp test (P < 0.05). The most cytotoxic fractions against colon carcinoma (HT-29), breast adenocarcinoma (MDA-MB-231) and alveolar basal epithelial adenocarcinoma (A549) cell lines were from Ammineae and Peucedaneae tribes while fruits fractions with high phenol contents and antioxidant powers were from Ammineae tribe.
ConclusionThe Apiaceae fruits have significant biological effects, therefore the isolation of phytochemical compounds from active fractions with cytotoxicity is suggested in future studies.
Keywords: Umbelliferae, Fruits, Cytotoxic, Reducing power, Phenol content -
BackgroundPostpartum depression (PPD) is one type of major depression that has harmful effects on mother, infant and family relationships. Therefore, this study investigated the protective effects of hydro-alcoholic extract of Nigella sativa on PPD in mice.MethodsIn this experimental study, adult female mice were randomly divided into 6 groups (n=10): control, PPD, Nigella sativa 200, bicuculline, muscimol and fluoxetine. In all animals except in the control group, PPD was induced by progesterone withdrawal. In groups of Nigella sativa 200, bicuculline, muscimol and fluoxetine, mice received 200 mg/kg Nigella sativa, 1 mg/kg bicuculline + 200 mg/kg Nigella sativa, 0.5 mg/kg muscimol and 15 mg/kg fluoxetine, respectively. Then, after 1 hr, the forced swimming test and open field test was examined.ResultsPPD caused significant increases in the immobility times in the forced swimming test (P < 0.05). Administration of Nigella sativa, muscimol and fluoxetine attenuated depression-related behaviors in compared to the PPD group (all P < 0.05). However, combined administration bicuculline with Nigella sativa prevented antidepressant effects of this extract. Moreover, there were no significant differences in the crossing number in the open field test of all groups.ConclusionsAdministration of Nigella sativa hydro-alcoholic extracts can be beneficial to the improvement in PPD and exerts possibly these protective effects partially through increase of gamma amino butyric acid (GABA)-A levels.Keywords: Bicuculline, Fluoxetine, Forced swimming test, muscimol, Open field test, Progesterone withdrawal
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مجله دانشکده پزشکی دانشگاه علوم پزشکی مشهد، سال شصت و سوم شماره 4 (پیاپی 172، مهر و آبان 1399)، صص 2524 -2541مقدمه و هدف
بروز بیماری های فیزیولوژیک و مزمن سلامت روان والدین و به خصوص مادران را تحت تاثیر قرار می دهد. بر این اساس پژوهش حاضر با هدف بررسی مقایسه اثربخشی آموزش تاب آوری با تنظیم هیجان بر کیفیت زندگی و خودکارآمدی مادران دارای کودکان مبتلا به فلج مغزی انجام گرفت.
مواد و روش هاروش پژوهش حاضر نیمه آزمایشی با طرح پیش آزمون-پس آزمون با گروه گواه و دوره پیگیری دو ماهه بود. جامعه آماری پژوهش حاضر، شامل مادران دارای کودکان مبتلا به فلج مغزی شهر شیراز در سال 1396 بود. در این پژوهش از روش نمونه گیری غیراحتمالی در دسترس و گمارش تصادفی استفاده شد. پس از انتخاب حجم نمونه و گمارش آنها در دو گروه آزمایش و یک گروه گواه، گروه های آزمایش مداخلات آموزشی را طی سه ماه به صورت هفته ای یک جلسه 90 دقیقه ای دریافت نمودند. پرسشنامه های مورد استفاده در این پژوهش شامل پرسشنامه کیفیت زندگی (سازمان بهداشت جهانی، 1993) و خودکارآمدی (شرر و آدامز، 1982) بود. داده های حاصل از پژوهش به شیوه تحلیل واریانس با اندازه گیری مکرر مورد تجزیه و تحلیل قرار گرفت.
یافته هانتایج حاصل از تحلیل داده ها نشان داد که آموزش تاب آوری و تنظیم هیجان بر کیفیت زندگی و خودکارآمدی مادران دارای کودکان مبتلا به فلج مغزی موثر بوده است. در حالی که بین اثربخشی این دو روش بر کیفیت زندگی و خودکارآمدی تفاوت معنادار مشاهده نشد.
نتیجه گیری:بر اساس نتایج پژوهش حاضر می توان از آموزش تاب آوری و تنظیم هیجان جهت بهبود کیفیت زندگی و خودکارآمدی مادران دارای کودکان مبتلا به فلج مغزی استفاده نمود.
کلید واژگان: تاب آوری, تنظیم هیجان, خودکارآمدی, کیفیت زندگی, فلج مغزیIntroduction and purposeThe emergence of physiologic and chronic diseases influences the parents’ (especially the mothers’) mental health. Therefore the present study was conducted aiming to compare the effectiveness of teaching resilience and emotion regulation on the life quality and self-efficacy of the mothers of the children suffering from cerebral paralysis.
Material and methodsIt was a quasi-experimental study with pretest, posttest, control group and two-month follow-up design. The statistical population included all the mothers of the children with cerebral paralysis in the city of Shiraz in 2017. Non-probable available sampling method and random replacement were used in the present study. After selecting the sample size and replacing them into experimental and control groups, the experimental group received ninety-minute teaching interventions during three months once a week. The applied questionnaires were life quality questionnaire (World Health Organization, 1993) and self-efficacy (Shrer and Adams, 1980). The data from the study were analyzed through repeated measurement ANOVA.
FindingsThe data from the study showed that teaching resilience and emotion regulation has been effective on the life quality and self-efficacy of the mothers of the children with cerebral paralysis while there was not observed any significant difference between effectiveness of these two methods on life quality and self-efficacy.
ConclusionBased on the results of the present study, resilience and emotion regulation training can be used to improve the quality of life and self-efficacy of mothers with children with cerebral palsy.
Keywords: Resilience, emotion-regulation, Self-efficacy, Life Quality, cerebral paralysis -
Biosurfactants, the microbial originated surface active agents, can modify the physicochemical properties of surfaces and reduce the bacterial adhesion via changing bacterial adhesion interactions on surfaces. They were also able to block oxidative chain reactions and might show antioxidant properties. The goal of this study was to evaluate the antioxidant and antibiofilm activities of biosurfactants which were derived from two autochthonous biosurfactant-producing strains, Bacillus amyloliquefaciens NS6 (surfactin), andPseudomonas aeruginosaMN1 (rhamnolipids). Their antioxidant activities were determined by ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) methods. Ferric thiocyanate (FTC) assay was used for determination of their lipid peroxidation inhibition capacity. Their effect to reduce the adhesion of Streptococcus mutans on polystyrene surfaces and disruption of its pre-formed biofilms were also investigated. Our results indicated that surfactin showed higher antioxidant activity than rhamnolipids and showed relatively similar efficiency to BHA that suggests it as a good alternative for synthetic antioxidants. In other hand, rhamnolipid conditioned surfaces showed higher antiadhesive and antibiofilm activity in comparison with surfactin treated surfaces.Keywords: Biosurfactant, antioxidant activity, Biofilm, Surfactin, Rhamnolipid
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Background and objectives
Antibiotics resistance and unpleasant side effects of AChE inhibitors have led to an increased interest in herbs as potential sources. Ferula aucheri (Syn: Dorema aucheri) an indigenous species of Ferula (Apiaceae) grows in Iran and is used as food and medicinal plant. The present study was aimed to identify the oil composition and evaluate antimicrobial and AChE inhibitory activity of flowering tops, fruits and roots.
MethodsThe chemical composition of the oils was recognized by GC and GC‐MS. The antimicrobial effects were assessed on 12 microorganisms by disc diffusion and micro-well dilution methods and AChE inhibitory potentials by a modified version of Ellman's method.
ResultsSixty five compounds were identified from different organs and the notable characteristics have been high amounts of sesquiterpenes. Germacrene B (14.96%) and β-caryophyllene (12.87%) were distinguished as major components of flowering tops. Cis-dihydroagarofuran (9.02%) and δ-cadinene (8.28%) were identified as the remarkable constituents of fruit. δ-cadinene (18.25%) and gurjunene (12.62%) were detected from the roots by high content. All volatile oils exhibited lower MICs on Bacillus subtilis, Klebsiella pneumonia, Shigella dysenteriae,and Salmonella paratyphi-A serotype compared with gentamicin. Root and fruit oils were more effective than gentamicin against Escherichia coli and flowering tops oils proved lower MICs versus Staphylococcus aureus. Fruits and root oils showed weak potency for inhibiting AChE with IC50 values 554.05±4.65 and 239.69±3.5 μg/mL, respectively and flowering tops exhibited moderate activity (179.06±4.3 μg/mL).
ConclusionThe findings demonstrated that F. aucheri essential oils possessed antimicrobial activities with inhibition properties toward AchE.
Keywords: AChE inhibitory activity, Antimicrobial activity, Dorema aucheri, Essential oil, Ferula aucheri -
BackgroundConstipation is a common gastrointestinal problem worldwide.ObjectivesThe current study aimed to prepare a dosage form containing flaxseed and figs and evaluate the effects of this drug to treat functional constipation.MethodsA total of 10 formulations were developed using various proportions of excipients by wet granulation method. The best formulation containing 300 mg flaxseed powder and 1200 mg figs extract (total weight of 2000 mg) was selected. After compression of caplets, evaluation tests such as general appearance, hardness, thickness, weight variation, friability, disintegration time and standardization studies were performed. During clinical study, 15 patients with functional constipation received the prepared dosage form three times daily for two weeks, and then statistical differences within the groups were compared.ResultsAfter the first week of experiment the increase of defecation frequency and reduction of retentive posturing, large fecal mass, pain feeling during evacuation and consistency of stool were significantly noticeable (PConclusionsPrepared caplets of Linum and Ficus reduced the severity of constipation in patients.Keywords: Drug Formulation, Flaxseed, Linum usitatissimum, Figs, Ficus carica, Constipation
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پژوهش حاضر با هدف بررسی مقایسه اثربخشی آموزش تاب آوری با تنظیم هیجان بر داغ اجتماعی ادراک شده و تحمل روانی مادران دارای کودکان مبتلا به فلج مغزی انجام گرفت. روش پژوهش حاضر نیمه آزمایشی با طرح پیش آزمون-پس آزمون با گروه گواه بود. جامعه آماری پژوهش حاضر، شامل تمام مادران دارای کودکان مبتلا به فلج مغزی شهر شیراز در سال 1396 بود. در این پژوهش از روش نمونه گیری غیراحتمالی در دسترس و گمارش تصادفی استفاده شد. پس از انتخاب حجم نمونه و گمارش آنها در گروه های آزمایش و گواه، گروه های آزمایش مداخلات آموزشی را طی سه ماه به صورت هفته ای یک جلسه 90 دقیقه ای دریافت نمودند. پرسشنامه های مورد استفاده در این پژوهش شامل پرسشنامه داغ اجتماعی و تحمل روانی بود. نتایج حاصل از تحلیل داده ها نشان داد که آموزش تاب آوری و تنظیم هیجان بر داغ اجتماعی ادراک شده و تحمل روانی مادران دارای کودکان مبتلا به فلج مغزی موثر بوده استکلید واژگان: تاب آوری, تنظیم هیجان, داغ اجتماعی, تحمل روانی, فلج مغزیThe present study was conducted to investigate the comparison of the effectiveness of resilience and emotion regulation on perceived social stigma and mental endurance in the mothers of the children with CP. The present research method was quasi-experimental with pretest-posttest and control group design. The statistical population of the current study included all the mothers of the children with CP in the city of Shiraz in 2017. Non-probable available sampling method and random replacement were used in the present study. After selecting the sample size and replacing them in the experimental and control groups, the experimental group received teaching interventions in ninety-minute sessions once a week during three months. The applied questionnaires in the present study included social stigma and mental endurance. The results from the data analysis showed that teaching resilience and emotion regulation have been effective on perceived social stigma and mental endurance of the mother of the children with CPKeywords: Resilience emotion regulation, mental endurance, cerebral paralysis
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Objective(s)Astrodaucus persicus (Apiaceae) is one of the two species of this genus which grows in different parts of Iran. Roots of this plant were rich in benzodioxoles and used as food additive or salad in Iran and near countries. The aim of present study was evaluation of antimalarial and cytotoxic effects of different fractions of A. persicus fruits and roots extracts.Materials And MethodsRipe fruits and roots of A. persicuswere extracted and fractionated by hexane, chloroform, ethyl acetate and methanol, separately. Antimalarial activities of fractions were performed based on Plasmodium berghei suppressive test in mice model and percentage of parasitemia and suppression were determined for each sample. Cytotoxicity of fruits and roots fractions were investigated against human breast adenocarcinoma (MCF-7), colorectal carcinoma (SW480) and normal (L929) cell lines by MTT assay and IC50 of them were measured.ResultsHexane fraction of roots extract (RHE) and ethyl acetate fraction of fruits extract (FEA) of A. persicus demonstrated highest parasite inhibition (73.3 and 72.3%, respectively at 500 mg/kg/day) which were significantly different from negative control group (PConclusionAccording to the results, RHE and FEA fractions of A. persicus could be introduced as excellent choice for antimalarial drug discovery. In addition, cytotoxic activity of RHE was noticeable.Keywords: Antimalaria, Apiaceae, Astrodaucus persicus, Cytotoxic, MTT assay, Plasmodium berghei
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سابقه و هدفسرطان سینه شایع ترین نوع سرطان بین خانم ها می باشد و هر سال حدود یک میلیون نفر به این بیماری مبتلا می شوند. محققین در جستجو ترکیبات ضد سرطان از منابع طبیعی می باشند. مطالعه حاضر به بررسی اثر سایتوتوکسیک عصاره گل زعفران خزری بر رده های سلول سرطان سینه و نرمال، تعیین مقدار فنول و فلاونوئید تام عصاره می پردازد.مواد و روش هاگل های زعفران خزری، در پائیز 93 از ارتفاعات جنگلی شهرستان نکا استان مازندران جمع آوری شد. پس از خشک و خرد شدن، عصاره گیری به روش ماسراسیون و با حلال متانول 80 درصد طی 48 ساعت با 3 مرتبه تکرار صورت گرفت. عصاره جمع آوری و تحت خلا و حرارت کم تغلیظ شد. اثر سایتوتوکسیک عصاره حاصل روی رده های سلول سرطان سینه MCF7، 4T1 وSKBR3 و سلول نرمال فیبروبلاست موش سوئیسی (NIH/3T3) مورد بررسی و با استفاده از روش MTT و Tripan blue فاکتور IC50 اندازه گیری شد (بر هر رده سلولی، غلظت های 1، 50، 100، 500 و 1000 میکروگرم بر میلی لیتر از عصاره آزمایش گردید).یافته هانتایج این مطالعه نشان داد عصاره گل زعفران خزری اثر سایتوتوکسیک قابل توجهی نداشته است. از طرف دیگر مقدار فنول تام (35/4 ± 25/238 میلی گرم گالیک اسید بر گرم عصاره خشک) و مقدار فلاونوئید تام (24/6± 41/85 میلی گرم کوئرستین بر گرم عصاره خشک) گل زعفران خزری قابل توجه می باشد.
استنتاج: ترکیبات موثر موجود در این عصاره، فاقد خاصیت سایتوتوکسیک موثر می باشند و پیشنهاد می گردد در مطالعات بعد با توجه به پروفایل ترکیبات فنولیک و فلاونوئیدی آن، بررسی های بیش تری روی خاصیت پیشگیری کننده و محافظتی عصاره گل زعفران خزری در برابر سرطان صورت گیرد.کلید واژگان: زعفران خزری, سمیت سلولی, MTT, تریپان بلو, سرطان سینه, فنول تامBackground andPurposeBreast cancer is the most common cancer in woman. About one million new cases are diagnosed every year worldwide. Many researchers are interested in anti-cancer effects of natural products. In this research, cytotoxic effects of Crocus caspius extract against breast cancer and normal cell lines were investigated and total phenols and flavonoids were also determined.Materials And MethodsFlowers of Crocus caspius were collected from Neka in Mazandaran province, Iran, in autumn 2014. The powder of dried flowers were macerated with 80% methanol, three times every 48 hr. The methanol extract was concentrated under reduced pressure. Cell viability was determined using MTT and trypan blue assay was done on breast carcinoma cell lines (MCF7, 4T1, and SKBR3) and Swiss mouse embryo fibroblast (NIH/3T3) as normal cell lines. Various concentrations (1, 50, 100, 500, and 1000 µg/ml) of the extract and positive control were examined for determination of IC50.ResultsCrocus caspius extract showed no considerable cytotoxic effects against breast cancer and normal cell lines. Total phenolic and flavonoid contents of the extract were quite high; 238.25±4.35 mg GAE/g and 85.41±6.24 mg quercetin/g of dry extract, respectively.ConclusionThese results indicated non toxicity of Crocus caspius extract. Further studies are needed to investigate the preventive effect of C.caspius extract against cancer according to its total phenolic and flavonoid contents.Keywords: Crocus caspius, Cytotoxicity, MTT, trypan blue, breast neoplasms, total phenol -
There are many efforts for identification of natural compounds from dietary or medicinal plants. Young roots and aerial parts of A. persicus have been used as food additive or salad vegetable in some parts of Iran. In this study, different fractions of the root extract of A. persicus were subjected for isolation and purification of secondary metabolites. The methanol extract of the roots was fractionated with hexane (HE), chloroform (CL), ethyl acetate (EA) and methanol (ME). Five novel compounds were isolated from HE, CL and EA using different chromatographic techniques and were identified by 1H-NMR, 13C-NMR, 2D-NMR and MS spectroscopic methods. Elucidated compounds with benzodioxole structure were characterized for the first time as 5-((propanoyl methyl)amino)-4,7-dimethoxybenzo[d][1,3]dioxole (1), 5-(3-ethyloxiran-2-yloxy)-4,7-dimethoxybenzo[d][1,3]dioxole (2), 4,7-dimethoxy-5-(propanonyl) benzo[d][1,3]dioxole (3), 4-ethoxybenzo[d][1,3]dioxol-6-carbaldehyde (4), and 4-(O-β-D-glucopyranosyl)-6-(3-propanyloxiran-2-yloxy)benzo[d][1,3]dioxole (5).Keywords: Astrodaucus persicus, root, Apiaceae, phytochemistry, benzodioxole structures
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BackgroundThe suspension culture of Vigna radiata was selected for biotransformation of hydroquinone to its β-D-glucoside form (arbutin) as an important therapeutic and cosmetic compound.MethodsThe biotransformation efficiency of a Vigna radiata cell culture in addition to different concentrations of hydroquinone (6-20 mg/100 ml) was investigated after 24 hours in comparison to an Echinacea purpurea cell culture and attempts were made to increase the efficacy of the process by adding elicitors.ResultsArbutin was accumulated in cells and found in the media only in insignificant amounts. The arbutin content of the biomass extracts of V. radiata and E. purpurea was different, ranging from 0.78 to 1.89% and 2.00 to 3.55% of dry weight, respectively. V. radiata demonstrated a bioconversion efficiency of 55.82% after adding 8 mg/100 ml precursor, which was comparable with result of 69.53% for E. purpurea cells after adding 10 mg/100 ml hydroquinone (P>0.05). In both cultures, adding hydroquinone in two portions with a 24-hour interval increased the biotransformation efficiency. Different concentrations of methyl jasmonate (25, 50, and 100 µM) and chitosan (50 and 100 µg/ml) as elicitors increased the bio-efficiency percentage of the V. radiata culture in comparison with the flask containing only hydroquinone.ConclusionThis is the first report of the biotransformation possibility of V. radiata cultures. It was observed the bioconversion capacity increased by adding hydroquinone in two portions, which was comparable to adding an elicitor.Keywords: Vigna radiata, suspension culture, arbutin, elicitor, methyl jasmonate, chitosan
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Objective(s)Astrodaucus persicus, Apiaceae, is used as vegetable or food additive in some parts of Iran. The essential oils of different parts of Astrodaucus persicus from Kordestan province were analyzed for the first time and compared with other regions. In this study, antioxidant activities and total phenols determination of aerial parts essential oils and root fractions of A. persicus were investigated.Materials And MethodsThe essential oils were obtained by hydro-distillation from flowers/fruits, leaves/stems, ripe fruits and roots of plant and analyzed by GC-MS. Crude root extract was fractionated with hexane, chloroform, ethyl acetate and methanol. Antioxidant activities by DPPH and FRAP methods and total phenols by Folin-ciocalteu assay were measured.ResultsThe abundant compounds of flowers/fruits blue essential oil were α-thujene, β-pinene and α-pinene. The predominant components of blue leaves/stems essential oil were α-thujene, α-pinene and α-fenchene. The major volatiles of ripe fruits blue essential oil were β-pinene, α-thujene and α-pinene. The chief compounds of root yellow essential oil were trans-caryophyllene, bicycogermacrene and germacrene-D. Total root extract and ethyl acetate fraction showed potent antioxidant activities and high amount of total phenols in comparison to other samples. Among volatile oils, the flowers/fruits essential oil showed potent reducing capacity.ConclusionThe major compounds of aerial parts essential oils were hydrocarbon monoterpenes while the chief percentage of roots essential oil constituents were hydrocarbon sesquiterpenes. α-Eudesmol and β-eudesmol were identified as responsible for creation of blue color in aerial parts essential oils. A. persicus was known as a potent antioxidant among Apiaceae.Keywords: Apiaceae, Blue volatile, Free radical scavenger, Oxidation, reduction, Root fractions
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Rosa damascena, Tripleurospermum disciforme and Securigera securidaca were used as disinfectant agents and for treatment of some disease in folk medicine of Iran. The antimicrobial effects of different fractions of seeds extract of S. securidaca, petals extract of R. damascena and aerial parts extract of T. disciforme were examined against some gram positive, gram negative and fungi by cup plate diffusion method. The petroleum ether and chloroform fractions of S. securidaca showed antibacterial activities against Staphylococcus aureus and Pseudomonas aeruginosa, while its methanol fraction had no antibacterial effects. R. damascena petals extract demonstrated antibacterial activities against Bacillus cereus, S. aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa. T. disciforme aerial parts extract exhibited antimicrobial effects only against S. aureus and S. epidermidis. None of the fractions had any antifungal activities. Therefore, present study confirmed utility of these plants as disinfectant agents. Six flavonoids were isolated from T. disciforme: Luteolin, Quercetin-7-O-glucoside, Kaempferol, Kaempferol-7-O-glucoside, Apigenin and Apigenin-7-O-glucoside. The flavonoids and the antimicrobial activity of T. disciforme are reported for the first time.Keywords: Securigera securidaca, Rosa damascena, Tripleurospermum disciforme, antimicrobial activity, flavonoids
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زمینه و اهدافاورژانس پیش بیمارستانی نقش بسیار مهمی در تامین سلامت جامعه داشته و آگاهی مردم از نوع خدمات و نحوه ارائه آنها میتواند به عملکرد بهینه آن کمک نماید. هدف این پژوهش بررسی میزان آگاهی و رضایتمندی مردم شیراز از عملکرد مرکز اورژانس 115 این شهرستان درسال 1389 می باشد.مواد و روش هاجامعه آماری این پژوهش توصیفی-مقطعی، ساکنین شهر شیراز می باشد. نمونه آماری به صورت تصادفی خوشه ایانتخاب و شامل 1680 نفر بود. پرسشنامه سنجش آگاهی و رضایتمندی افراد از عملکرد اورژانس، از طریق مصاحبه تلفنی تکمیل گردید. داده ها با استفاده از نرم افزار SPSS و با استفاده از آزمونt، رگرسیون و آنالیزواریانس در سطح 0.05 تجزیه و تحلیل شده است.یافته هانتایج نشان میدهدکه میانگین نمره آگاهی به طور معناداری درمناطق مختلف شهری با هم اختلاف دارند. بدین معنا که میانگین میزان آگاهی در مناطقی که از لحاظ اقتصادی، کمتربرخوردار هستند، به طور معناداری از دیگر مناطق شهری پایین تر است. همچنین این مطالعه نشان داد میزان آگاهی با جنس و میزان تحصیلات ارتباط معنی داری دارد و رابطه آن با سن معکوس است. بعلاوه یافته ها حاکی از آن است 527 نفرازآزمودنی ها (31.4 %) ازخدمات اورژانس 115 رضایت داشته اند و 123 نفر (%7.3) ازخدمات اورژانس ناراضی بوده اند.بحث و نتیجه گیریبا توجه به آنکه آگاهی مردم از نوع خدمات می تواند از درخواستهای نابجا برای ارسال آمبولانس در اورژانس بکاهد، آموزش به مردم بخصوص در مناطق جنوب شهر و مردم با تحصیلات کمتر در این زمینه توصیه می گردد. بعلاوه توصیه می شود در پژوهش های امکان سنجی و یا تولید روش های مختلف ارزیابی خدمات اورژانس، سطح اجتماعی-فرهنگی مخاطب هم مدنظر قرارگیرد.
کلید واژگان: رضایتمندی, آگاهی, اورژانس 115, اورژانس پیش بیمارستانی, شیرازAssessing Shiraz Citizen's Attitude and Satisfaction Towards Emergency Medical Services in 2010-2011Background And ObjectivesPre-hospital Emergency Medical Services (EMS) is one of the most important components of health care systems. Community awareness about its services could improve the performance. This study is aimed at assessing the citizens’ awareness and satisfaction about Shiraz EMS.Materials And MethodsThrough this cross-sectional study, 1680 residents of Shiraz citizens have been selected by cluster random sampling. Each person has been asked some questions about their knowledge and also satisfaction of EMS performance with a valid and reliable questionnaire through phone interview. The data were analyzed with SPSS using T- test, Anova and Regression with “0.05” level of significance.ResultsThis study revealed that the knowledge of the residents who are living in lower socioeconomic part of the city is lower than the residents of the other areas. The mean awareness score of each area was significantly different comparing to the other areas, based on their socioeconomic status. In better socioeconomic status, the knowledge score was higher. There was also significant relationship between education and gender with knowledge about EMS performance. Meanwhile, the relationship with age was reverse. Although 48.6% had no idea about EMS, 527 (31.4%) were satisfied by its services. There was only 7.3% dissatisfaction.ConclusionWhile the awareness about EMS’s duties could decrease irrelevant calls to EMS, education, especially for the residents of lower socioeconomic areas of the city is recommended. In addition, it is suggested that in feasibility studies or using other methods of evaluating EMS performance, socioeconomic status should be considered as independent variables.Keywords: Emergency Medical Services (EMS), Pre, hospital Emergency Care, Attitude, Satisfaction, Shiraz -
Antimicrobial activity of the polar and nonpolar extracts of the roots and aerial parts of Peucedanum ruthenicum M. Bieb., Johreniopsis seseloides (C. A. Mey.) Pimenov and Cervaria cervariifolia (C. A. Mey.) Pimenov were examined against gram-positive and gram-negative bacteria. The polar extracts of the roots and aerial parts displayed no activity against bacteria, while the nonoplar extracts of the roots which contains coumarins, presented activity against Staphylococcus aureus, S. epidermidis, Pseudomonas aeruginosa and Escherichia coli.Keywords: Antibacterial activity, Apiaceae, Cervaria cervariifolia, Pucedanum, Johreniopsis, ruthenicum, seseloides
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