pegah ghandil
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International Journal of Reproductive BioMedicine، سال بیست و دوم شماره 2 (پیاپی 169، Feb 2024)، صص 127 -136مقدمه
مطالعات سیتوژنتیک و همراهی نشان داده است که پلی مورفیسم های ژن های فولات می تواند خطر عدم تفرق صحیح کروموزومی و آنوپلوئیدی را افزایش دهد. پلی مورفیسم های ژن متابولیسم کننده فولات در مادران مبتلا به سندرم داون (DSM) در جمعیت های مختلف مورد بررسی قرار گرفته است. حامل فولات کاهش یافته 1 (RFC-1) و سیستاتیونین بتا سنتاز (CBS) دو آنزیم کلیدی در متابولیسم فولات هستند.
هدفدو پلی مورفیسم رایج CBS 844ins68 و RFC-1 A80G برای تعیین خطر احتمالی آنها در داشتن نوزادان DS در مادران جوان استان خوزستان، ایران مورد تجزیه و تحلیل قرار گرفتند.
مواد و روش هااین مطالعه بر روی 100 مادر دارای فرزند سندروم داون تریزومی 21 انجام شد. 100 مادر دارای همخوانی سن و قومیت با حداقل دو فرزند سالم و بدون سابقه بارداری غیرطبیعی به عنوان شاهد در نظر گرفته شدند. همه مادران از استان خوزستان بودند. شرکت کنندگان از ژوئن 2019 تا آوریل 2021 جمع آوری شدند. DNA ژنومی از خون محیطی استخراج شد. CBS-844ins68 و RFC-1-A80G به ترتیب با استفاده از PCR-electrophoresis و RFLP ژنوتیپ شدند.
نتایجدر ارتباط با RFC-1، فراوانی ژنوتیپ های AG و GG در مادران مبتلا به سندرم داون به طور معنی داری بیشتر از مادران شاهد بود (ریسک خطر به ترتیب 38/2 و 07/3). ژنوتیپ هتروزیگوت CBS 844ins68 در بین مادران مبتلا به سندرم داون به طور معنی داری بیشتر از شاهد بود (ریسک خطر 419/2). در نتیجه همزمانی وقوع هموزیگوت هر دو واریانت، ریسک خطر به طور قابل توجهی به 667/6 افزایش یافت.
نتیجه گیریپلی مورفیسم های مورد مطالعه احتمالا استعداد داشتن فرزند سندروم داون را افزایش می دهند. با این حال، قومیت، تغذیه و اپیستازی عوامل قابل توجهی هستند که باید در مطالعات آینده مورد ارزیابی قرار گیرند.
کلید واژگان: سندروم داون, فولیک اسید, پلی مورفیسم, CBS, RFC-1BackgroundCytogenetics and association studies showed that folate gene polymorphisms can increase the risk of chromosomal nondisjunction and aneuploidies. The folate-metabolizing gene polymorphisms in Down syndrome mothers (DSM) have been assessed in a variety of populations. Reduced folate carrier 1 (RFC1) and cystathionine beta-synthase (CBS) are key enzymes in folate metabolism.
Objective2 common polymorphisms, CBS 844ins68 and RFC1 A80G, were analyzed to determine their probable risk for having Down syndrome (DS) babies in young mothers of Khuzestan province, Iran.
Materials and MethodsThis study was conducted on 100 mothers who had trisomy 21 DS children. 100 age- and ethnic-matched mothers with at least 2 healthy children and no history of abnormal pregnancies were considered as control. The samples were collected from all the mothers from June 2019 to April 2021. Genomic DNA was extracted from peripheral blood. The CBS-844ins68 and RFC1-A80G were genotyped using polymerase chain reaction-electrophoresis and restriction fragment length polymorphism, respectively.
ResultsThe frequency of RFC1 AG and GG genotypes in DSM was significantly higher than the control mothers (odds ratio [OR] of 2.38 and 3.07, respectively). The heterozygote genotype of CBS 844ins68 was significantly more prevalent among DSM than the control (OR: 2.419). The OR was significantly increased to 6.667 when the homozygote of both variants was found together.
ConclusionStudying polymorphisms possibly increases the susceptibility of having a DS child. However, ethnicity, nutrition, and epistatic interactions are considerable factors to be evaluated in future studies.
Keywords: Down syndrome, Folic acid, Polymorphism, CBS, RFC1 -
Background
Down syndrome (DS) is a complex genetic disease that is caused by having three copies of chromosome 21. A possible association between polymorphisms in maternal folate metabolism genes and DS has been evaluated.
ObjectivesIt was aimed to first investigate the influence of C677T and A1298C polymorphisms in the methylenetetrahydrofolate reductase gene (MTHFR) and plasma homocysteine (Hcy) on the maternal risk for DS in the southwest of Iran.
MethodsThe MTHFR C677T and A1298C polymorphisms were genotyped using restriction fragment length polymorphism and Sanger sequencing, respectively. Allele and genotype frequencies and the dominant model of the MTHFR C677T and A1298C polymorphisms were evaluated in 80 mothers of children with DS and 80 control mothers. Eventually, the ELISA test was used to compare the concentration of plasma Hcy in both groups.
ResultsA significant association was observed in the 677T and 1298C alleles between the mothers of DS and control groups (P = 0.00077 and P = 0.01248, respectively). Further, the median concentrations of Hcy were significantly higher in mothers with DS babies compared to the control group (P < 0.05).
ConclusionsThere was an association between MTHFR C677T, A1298C, and plasma Hcy concentrations as the maternal risk of mothers with DS children.
Keywords: Down Syndrome, Methylenetetrahydrofolate Reductase, Polymorphisms, Association Study -
Background
Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), is a complex multifactorial disease for which the exact cause is not clear. In this study, the researcher aimed to evaluate interleukin 23 receptor (IL23R) gene polymorphisms in patients with inflammatory bowel disease.
MethodsIn this case-control study, we evaluated 125 patients of the Iranian population (Khuzestan) with IBD, including 35 patients with CD, 90 patients with UC, and 125 healthy controls. The polymorphisms of C/A-97952 (rs10889677), and G/A-43045 (rs1004819) were genotyped, using ARMS-PCR and G/A-78790 (rs11209026) using RFLP-PCR methods in the studied population. The collected data were analyzed using SPSS software.
ResultsIn this study, no significant association was observed between IL23R polymorphisms and IBD in this population, however the association between C/A-97952 AA genotype and penetrate to the tissue (P=0.048 OR=2.812 (1.23-6.44)), G/A-43045, AA genotype, and Ileocolic (P=0.031 OR=5 (1.071-31)). and G/A-43045 AA genotype and Pan Colitis (P=0.028 OR=4 (1.082-17.00)) in IBD were strengthened and emphasized.
ConclusionThe present study showed that there were no associations between IL23R polymorphisms, CD, and UC in the Khuzestan population. In addition, we found that C/A-97952 and G/A-43045 gene polymorphisms in IL-23R are related to special phenotypes. Further functional analysis with a larger sample size and other known IL-23 receptor genotypes is necessary to confirm our population's association with UC and CD.
Keywords: IL-23R, Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis, Polymorphism -
Background
Premature ovarian failure is a heterogeneous disorder, leading to early menopause. Several genes have been identified as the cause of non-syndromic premature ovarian failure (POF). Our aim was to explore the genetic defects in Iranian patients with POF.
MethodsWe studied a family with three females exhibiting non-syndromic POF. WES was performed for one of the affected individuals after ruling out the presence of CGG repeat expansion at fragile X mental retardation 1 gene in the family. Sanger sequencing was used to confirm the candidate sequence variants in the proband, and screening of the detected mutation was performed for the other affected and unaffected members of the family.
ResultsA homozygous frameshift mutation, c.349delC, was identified in ficolin-3 (FCN3) gene in the proband and two other patients. The parents and two healthy brothers were heterozygous for the mutation, and an unaffected sister was homozygous for wild type.
ConclusionThis is the first report of a mutation in FCN3 gene in a family with POF. Our findings can lead to the enhancement of genetic databases of patients with POF, specifically for families with high-risk background.
Keywords: Ficolin-3, Premature ovarian failure, Whole exome sequencing -
Background and Aims
Asthma is a complicated chronic inflammatory disease associated with pulmonary inflammation, severe immune responses of the respiratory tract, and change or destruction in the respiratory tract structure. Several factors, especially genetic and environmental factors, contribute to the pathogenesis of asthma. Interlukin (IL)-13 is considered the most important inflammatory mediator of asthma that play an effective role in the different stages of B cell maturation and differentiation. It also increases the expression of major histocompatibility complex II and CD23 and is effective in IgE isotypes switching. Single nucleotide polymorphisms (SNPs) cause the wide genetic diversity in the genome, and SNP analysis helps evaluate and diagnose disease-related genes. The present study was conducted to investigate the association of -1112C / T and + 2044 G /A polymorphisms in the IL-13 gene with asthma.
Material and MethodsBlood samples (5 ml) from asthma patients (167) and controls (172) after spirometry test were collected into tubes, and then DNA was extracted to determine the genotype of asthma patients. Real-time polymerase chain reaction was performed by the Taq Man method, and the results were analyzed using SPSS software version 22.
ResultsThere was a significant difference between the genotype of IL-13 -1112C / T polymorphism in the patient group and the control group (p = 0.028). The IL13 + 2044G / A polymorphism results showed no significant difference between the two groups (p = 0.319).
ConclusionsThe present study showed that IL-13 -1112C / T polymorphism positively correlates with the induction of asthma, but there was no significant association between the polymorphism + 2044G / A IL-13 and the risk of asthma.
Keywords: Asthma, IL-13, polymorphism, Real time PCR -
Background
Clopidogrel is a platelet inhibitor drug widely used in patients undergoing percutaneous coronary intervention (PCI) for the prevention of stent thrombosis. Genetic variation within CYP2C19 gene causes variable clopidogrel response. The FDA has recommended CYP2C19 genotyping in the patients taking clopidogrel, especially in the population with high prevalence rates of CYP2C19 *2 and *3 alleles.
ObjectivesThe aim of this study was to determine the prevalence of CYP2C19 gene polymorphisms in the population received Drug-Eluting Stents following PCI in the southwest of Iran.
MethodsThis cross-sectional study was conducted on 102 patients undergoing PCI. Demographic characteristics and risk factors of patients were collected using a questionnaire and CYP2C19 genotyping was carried out by PCR-RFLP. Then CYP2C19 allele and genotype frequencies were determined and analyzed using χ2 test.
ResultsData analysis showed that the frequencies of CYP2C19*1, CYP2C19*2, and CYP2C19*3 allele were 79.4%, 15.2%, and 5.4%, respectively. The frequency of CYP2C19*1/*1 genotype was 60.8%. Moreover, CYP2C19*1/*2, CYP2C19*1/*3, CYP2C19*2/*3 heterozygote genotypes were shown in 28.4%, 8.8%, and 2.0% of the subjects, respectively. None of the patients had CYP2C19*2/*2 or CYP2C19*3/*3 genotypes.
ConclusionsThe results of this study showed a high prevalence of CYP2C19*2 polymorphism in the population lived in the southwest of Iran. The frequency of CYP2C19*1/*2 genotype is compatible with the majority of the Iranian population and more similar to Caucasian populations.
Keywords: Percutaneous Coronary Intervention, Clopidogrel, CYP2C19 Polymorphism -
BackgroundThe aim of the present study was to evaluate the effect of natural antioxidant formula (blend of herbs: ginger root, cinnamon bark and raw almond fruit powder, rosemary leaf powder, and honey) on oxidative status, antioxidant enzyme activity, and relative heat shock protein (HSP‑70) expression in recreational female athletes.Materials and MethodsEighteen female participants trained for 4 weeks and randomly received either antioxidant formula (FormEX) (n = 8) or placebo (PlcEX) (n = 10) in a randomized controlled trial. Blood samples were obtained 1‑h before, 1 h and 24 h postexercise to measure malondialdehyde (MDA), total antioxidant capacity (TAC), superoxide dismutase (SOD), glutathione peroxidases (GPx), and HSP70 mRNA expression. Data analysis was performed using 2 (treatment = grouping factor) ×6 (time = within‑factor) repeated measurements analysis of variance or generalized estimating equations (GEE) test. We used the independent t‑test to evaluate any significant differences for real‑time polymerase chain reaction data.ResultsAntioxidant formula increased the relative HSP‑70 mRNA expression more than Plc‑EX group in all time points (P = 0.001). The time main effect was significant with regard to TAC and SOD concentrations (P = 0.001 and 0.002, respectively). However, there were no statistically significant differences between groups for TAC, SOD, and MDA (P = 0.25, 0.06, and 0.38, respectively). Neither the time main effect for MDA nor time and intervention interaction was not statistically significant for MDA, TAC, and SOD (P = 0.19, 0.13, and 0.10, respectively). GEE results for GPx showed that there were no significant differences between the groups (P = 0.11).ConclusionThe results presented herein revealed that natural antioxidant rich formula had variable effects on oxidative status. However, in contrast to many antioxidant supplements, this formulation increases the HSP‑70 mRNA expression which might improve the antioxidant ability of cells in the long‑term period and exercise‑induced adaptation.Keywords: Exercise?induced adaptation, heat shock proteins, natural antioxidants
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BackgroundThe role of FTO-rs9939609 gene variants in response to the Epigallocatechin-Gallate (EGCG) intervention remains unclear.ObjectivesThe present study aimed at investigating the gene-treatment interaction of FTO‐rs9939609 gene polymorphism and EGCG intervention on anthropometric indexes, fasting blood sugar, and insulin resistance/sensitivity in patients with Type 2 Diabetes Mellitus (T2DM).MethodsThis double-blind, randomized, placebo-controlled study was conducted on 66 patients (aged 20 to 60 years) with T2DM in Iran, from August 2017 to March 2018. Individuals were randomly block allocated to three groups. Group 1 received 300 mg EGCG (n = 22, TT genotype), Group 2 received 300 mg EGCG (n = 22, AA + AT genotypes), Group 3 received the placebo (n = 22). Two months following the intervention, Waist-Hip Ratio (WHR), A Body Shape Index (ABSI), Fasting Blood Sugar (FBS), and insulin levels, as well as Homeostasis Model Assessment-Insulin Resistance (HOMA-IR) and Quantitative Insulin Sensitivity Check Index (QUICKI) were evaluated. The FTO‐rs9939609 polymorphism was genotyped by Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP).ResultsIn both EGCG groups, a significant reduction in WHR was observed after the intervention compared with baseline (P < 0.05), with no significant differences in other parameters. The FTO‐rs9939609 polymorphism showed no gene-treatment interaction in response to EGCG.ConclusionsThis study suggests that administration of EGCG supplement for two months may provide anti-obesity effects in patients with T2DM. However, the FTO-rs9939609 polymorphism was not associated with the change in anthropometric and glycemic status after EGCG intervention.Keywords: Diabetes Mellitus, Epigallocatechin-Gallate, Fasting Blood Sugar, FTO, Insulin Resistance
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زمینه و هدف
داروهای ترکیبی جدیدی جهت کنترل آسم به کار می روند، که هدف آنها دستیابی به یک وضعیت فاقد علایم بیماری و بهبود و تقویت کارکرد ریوی با کمترین مقدار مصرف دارو می باشد. در این مطالعه، میزان بهبودی کلینیکی، یافته های عملکرد ریوی بیماران مبتلا به آسم قبل و بعد از درمان دوهفته ای با داروی ترکیبی فورمترول به اضافه بودزوناید مقایسه می شود.
روشبررسیطی یک مطالعه کارآزمایی بالینی به بررسی 58 بیمار جدید مبتلا به آسم متوسط و شدید با استفاده از شرح حال، معاینه فیزیکی و اسپیرومتری پرداخته شد. سپس بیماران، تحت درمان دوهفته ای با پروتکل درمانی اسپری فورمترول(به مقدار µg320) به اضافه بودزوناید (به مقدار µg9) قرارگرفتند و سه شاخص ریوی FEV1، FVC وPEF در اسپیرومتری آنها بررسی شد.
یافته هادر مطالعه حاضر، میانگین FEV1 قبل از درمان 1/2±2/92 و بعد از درمان 0/78±3/10 بود که این اختلاف معنادار بوده است (P<0/05). همچنین FVCقبل و بعد از درمان به ترتیب 1/4±3/51 و 0/98±3/87 بود که 17/50درصد تغییر داشت که از نظر آماری تفاوت معنا دار بود (P<0/05). میانگین PEF قبل و بعد از درمان به ترتیب 1/8±4/50 و0/6±4/98 درصد بود که تفاوت معناداری با یکدیگر داشتند (P<0/05).
نتیجه گیریاستفاده از داروی ترکیبی فورمترول به اضافه بودزوناید برای درمان بیماران آسم متوسط و شدید مفید است و به کار بردن بیشتر این داروی ترکیبی در بالین اثربخش است و نتایج رضایت بخشی حاصل می شود.
کلید واژگان: آسم, FEV1, FVC, PEFBackground and ObjectiveNew combinations of drugs are used for asthma control, which aim to achieve lack of symptoms and increase pulmonary function with the least amount of drug administration. In this study, the clinical recovery of pulmonary function in asthmatic patients before and after two weeks of treatment with a combination of fomoterol and budesonide compared. Subjects and
MethodsThis study was carried out on 58 newly diagnosed moderate and severe asthmatic patients referred to Ahvaz Imam Hospital during the first six months of the 2012. Physical examination and FVC, FEV1 and PEF variables were assessed using spirometry. After two weeks treatment with a combination of fomoterol (320µg) and budesonide (9µg) turbohaler the patients were re-evaluated. SPSS analysis software and ANOVA (t-test) methods were used for data analysis.
ResultsThe mean FEV1 before treatment was 2.92±1.2 which increased to 3.1±0.78 after treatment ((P<0.05). The FVC before treatment was 3.51±1.4 also increased significantly after treatment 3.87± 0.98 (P<0.05). On the other hand, PEF percentage for pretreatment was 1.8 ± 4.50 %, which significantly increased to 4.98±0.6% after treatment (P <0.05).
ConclusionThe use of the combination of formetrol plus budesonide for the treatment of moderate and severe asthma was found to be useful in clinical and can achieve satisfactory control of moderate and severe asthma.
Keywords: Asthma, FVC, FEV1, PEF -
زمینه و هدفآسم بیماری مزمن تنفسی است که با انسداد برگشت پذیر راه های هوایی همراه است. هدف از این مطالعه، تعیین ارتباط یافته های بالینی با شدت آسم در بیماران آسمی دارای قومیت عرب و بختیاری و تعیین غلظت IgE توتال می باشد.روش بررسی200 بیمار آسمی دارای قومیت عرب یا بختیاری مقیم خوزستان مراجعه کننده به کلینیک فوق تخصصی ریه در سال 1392در شهر اهواز مورد مطالعه قرار گرفتند. اطلاعات بیماران از طریق پرسش نامه جمع آوری شد و اسپیرومتری انجام گردید و سرم بیماران از نظر میزان IgE توتال به روش الیزا مورد آزمایش قرار گرفت. کلیه تحلیل ها با نرم افزار آماری SPSS صورت پذیرفت.یافته هادر این مطالعه توصیفی- تحلیلی، قومیت عرب 16 درصد آسم شدید، 13 درصد آسم متوسط، 15/5درصدآسم خفیف و 10/5 درصد آسم کنترل شده داشتند. قومیت بختیاری 5/9 درصد آسم شدید، 7 درصد آسم متوسط، 14 درصد آسم خفیف و 14/5 درصد آسم کنترل شده داشتند.در مجموع، 33 درصد سابقه مصرف سیگار توسط خود یا اعضای خانواده و69/5 درصد، BMI بیشتر از 25 داشتند. براساس سنجش میزانIgE سرم بیماران 60/1 درصد دارای آسم آتوپیک و 39/9 درصد غیر آتوپیک بودند و 39/5 درصد سابقه فامیلی آسم داشتند.نتیجه گیریشدت آسم با قومیت و میزان BMI تفاوت معناداری داشت (مقدار P به ترتیب 0/012 و 0/009 بود)، اما بین میزان IgE و سن و جنس بیماران و دخانیات با شدت آسم تفاوت معناداری مشاهده نگردید(میزان P به ترتیب 0/58، 0/15، 0/27 و 0/17 بود).کلید واژگان: آسم, اپیدمیولوژی, دخانیات, IgE, BMIBackground and ObjectiveAsthma is a chronic respiratory disease that is associated with Reversible airway obstruction. The purpose of this study was to determine the clinical findings associated with asthma severity and determine the concentration of total IgEin patients with Arab ethnicity and Bakhtiari. Subjects andMethodsIn this survey, 200 patients with asthma patients with Bakhtiari and Arabs ethnicities living in Khuzestan province which were referred to the pulmonary clinic in 2014 in Ahvaz city were studied. Patient data were collected through questionnaires and spirometry was performed and the total IgElevel in patients' serum were tested by ELISA. All data were analyzed with SPSS.ResultsIn this descriptive study, In Arab ethnicity, 16% had severe asthma, 13%, 15.5% mild asthma and 10.5% had controlled asthma. In Bakhtiaries, 5.9% had severe asthma, 7% moderate asthma, 14% mild asthma and 14.5% had controlled asthma. In total, 33% of the patients were passive smokers by their family members and 69.5% had a BMI greater than 25. Based on the measurement of the total serum IgE 60.1% were atopic asthma and 39.9% non-atopic. Totally, 39.5% of the patients had a family history of asthma.ConclusionsIn our study in Khuzestan province, asthma severity was significantly associated with ethnicity and BMI levels (P= 0.012 and 0.009, respectively), but no significant relationship were observed for the IgE, age and sex of patients and tobacco with asthma severity (P=0.58, 0.15, 0.27 and 0.17, respectively).Keywords: Asthma, Epidemiology, Tobacco, IgE, BMI
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