فهرست مطالب
Advanced Biomedical Research
Volume:7 Issue: 5, May 2017
- تاریخ انتشار: 1396/05/19
- تعداد عناوین: 14
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Page 52Background
The conventional method for ventilation is supported by accommodative or adaptive support ventilation (ASV) that the latter method is done with two
methodsASV minute ventilation (mv): 110% and ASV mv: 120%. Regarding these methods this study compared the differences in duration of mechanical ventilation and hemodynamic changes during recovery and length of stay in Intensive Care Units (ICU).
Materials and MethodsIn a clinical trial study, forty patients candidate for ventilation were selected and randomly divided into two groups of A and B. All patients were ventilated by Rafael ventilator. Ventilator parameters were set on ASV mv: 110% or ASV mv: 120% and patients were monitored on pulse oximetry, electrocardiography monitoring, central vein pressure and arterial pressure. Finally, the data entered to computer and analyzed by SPSS software.
ResultsThe time average of connection to ventilator in two groups in modes of ASV mv: 110% and 120% was 12.3 ± 3.66 and 10.8 ± 2.07 days respectively, and according to t‑test, there was no significant difference between two groups (P = 0.11). The average of length of stay in ICU in two groups of 110% and 120% was 16.35 ± 3.51 and 15.5 ± 2.62 days respectively, and according to t‑test, there found to be no significant difference between two groups (P = 0.41).
ConclusionUsing ASV mv: 120% can decrease extubation time compared with ASV mv: 110%. Furthermore, there is not a considerable side effect on hemodynamic of patients.
Keywords: Mechanical ventilation, separation time, ventilation time -
Page 53Background
Insects are mostly pathogens transmitters, thus the necessity of finding effective bioinsecticides to combat them. In the present investigation, the insecticide activity of Ageratina jahnii and Ageratina pichinchensis (Asteraceae) essential oils, methanol, and aqueous extracts was evaluated against Lutzomyia migonei (Diptera: Psychodidae) females, Leishmania transmitters, a wide distributed parasitosis in Latin America.
Materials and MethodsAll extracts were prepared by maceration at room temperature, and essential oils were obtained by hydrodistillation process. Females of L. migonei were used in the bioassays using the adulticide test in pots.
ResultsEssential oils from both assayed plant species showed 100% of L. migonei mortality at 48 h of exposure at the concentration of 10 mg/ml. A. jahnii essential oil exhibited the following values, LD50 = 0.39 mg/ml, LD90 = 1.57 mg/ml, LD95 = 2.31 mg/ml, and LD99 = 4.80 mg/ml while for A. pichinchensis essential oil values were LD50 = 0.31 mg/ml, LD90 = 0.99 mg/ml, LD95 = 1.38 mg/ml, and LD99 = 2.55 mg/ml.
ConclusionHigher toxicity was observed with A. pichinchensis essential oil against L. migonei, comparing to A. jahnii oil. Two new plant species are being reported, showing bioactive properties against common tropical disease vectors such as L. migonei, hence, opening possibilities to a more environmental friendly control.
Keywords: Ageratina jahnii, Ageratina pichinchensis, Asteraceae, insecticide activity, Lutzomyia migonei -
Page 54Background
Bacterial infections are responsible for great number of mortality in Intensive Care Unit (ICU). Knowledge about prevalence of bacterial infections and their antibiotic‑resistance pattern would be a great step for their treatment and management.
Materials and MethodsData about nosocomial infections in ICUs of Alzahra Hospital (referral hospital in Isfahan, center of Iran) were gathered during the years 2007–2010. A questionnaire was fulfilled for any specific patient with nosocomial infection containing demographic data of patient and also characteristics of the infection.
ResultsOut of all patients, 707 individuals (65.6%) were male and 370 (34.4%) were female. Our data revealed that Pseudomonas aeruginosa (13.9%), Klebsiella (11%), and Escherichia coli (6.4%) were the most prevalent bacterial infections. The most common sites of nosocomial infections in the ICU were respiratory system (399 cases, 37%), urinary system (230 cases, 21.4%), and blood (102 cases, 9.5%). The antibiotic‑resistance of each bacteria in ICU ward was assessed and data were categorized in a table. There were less documentary about bacterial cultures in the year 2007 when compared with the next years.
ConclusionWe found some differences (such as bacterial prevalence in ICU wards which caused nosocomial infections) in our local prevalence of nosocomial infections and also in their resistance pattern compared to other centers. Knowing about our data will help physicians to administer the most suitable antibiotics for treatment of nosocomial infections in our area.
Keywords: Antibiotic‑resistance, Intensive Care Unit, nosocomial infection -
Page 55Background
Peripheral neuropathy is a common complaint of diabetes. This study aimed to determine the effects of 12 weeks combined training with Vitamin D supplement on improvement of sensory‑motor neuropathy in women with diabetic neuropathy.
Materials and MethodsThis clinical trial study conducted on 90 patients were selected and randomly divided into two groups. Finally, 81 adult females with diabetes type II (20–55 years old) were interred in this study. The control group had no training, but received Vitamin D. The experimental group received Vitamin D and 12 weeks training program (3 days a week, 60 min/session) including aerobic exercises, strength, and flexibility. Aerobic exercise intensity was set at 60–70% maximum heart rate and resistance training intensity was determined by 10 R.M. Michigan neuropathy questionnaire, reflex hammer and tuning fork 128 Hz used to screening tense of neuropathy (Michigan Neuropathy Screening Instrument) that were used for pretest and posttest.
ResultsFollowing 3 months combined training and supplementation with Vitamin D, had observed a significant reduction in numbness (P = 0.001), pain (0.002), tingling (P = 0.001), and weakness (P = 0.002) in the lower limb and also increases in sense of touch intervention (P = 0.005), detects the position of the fingers (P = 0.001) and vibration perception (P = 0.001) in tissues. Knee reflexes (P = 0.77) and ankles reflexes (P = 0.47) did not significantly change after interventions.
ConclusionIt seems that taking part in combined training and supplementation with Vitamin D can improve the symptoms of sensory‑motor neuropathy.
Keywords: Combination training, diabetes, sensory‑motor neuropathy, Vitamin D supplement -
Page 56Background
Since epithelial cell adhesion molecule glycoprotein (EPCAM) is associated with the development and metastasis of colon adenocarcinoma, it can be helpful in predicting the tumor stage before surgery. In this study, we investigated EPCAM glycoprotein expression in colon adenocarcinoma and its relationship with tumor staging.
Materials and MethodsThis study was done on formalin‑fixed and paraffin‑embedded tissues of 71 patients diagnosed with colon adenocarcinoma, together with normal tissues around them, which were available at the archive of pathology lab of Al‑Zahra hospital, Isfahan. Hematoxylin and eosin (HandE) and immunohistochemistry (IHC) staining methods for EPCAM marker were performed on paraffin‑embedded blocks.
ResultsThe percentage of staining of EPCAM glycoprotein in the tumoral and normal tissues of 71 patients with colon adenocarcinoma was studied and compared. In normal tissue, 84.5% showed strong staining, 15.5% showed moderate to strong, and none of the patients showed moderate, weak, or no staining at all. In the tumoral tissue, 25.4% had strong, 25.4% had moderate to strong, 26.8% showed moderate, 16.9% showed weak and 5.6% had no staining at all. EPCAM expression was significantly less in tumoral tissue than in normal.
ConclusionThere was an inverse relationship between tumor staging and the percentage of staining in EPCAM glycoprotein so this marker can be used for predicting the tumor stage.
Keywords: Colon adenocarcinoma, epithelial cell adhesion molecule glycoprotein, TNM staging -
Page 58
To report a case of upper eyelid swelling and ptosis caused by silicone oil migration in a patient after sutureless 23‑gauge pars plana vitrectomy and silicone oil injection. A 36‑year‑old female was referred to eye clinic with total retinal detachment (RD) and superotemporal giant dialysis secondary to trauma in the left eye. Transconjunctival sutureless 23‑gauge pars plana vitrectomy and intraocular silicone oil (1300 centistokes) injection were performed. After about 5 months, she came back with the left upper eyelid and periorbital swelling. Palpation of the eyelid revealed soft and mobile subcutaneous small lumps that were not attached to the skin. Computed tomography scan of the orbit showed an 11 mm × 8 mm soft tissue density mass in lateral aspect of the left orbit. Transcutaneously surgical exploration was performed. The patient was seen after 1 week postoperatively and there was a significant improvement of the ptosis. Eyelid swelling and ptosis caused by silicone oil migration after RD surgery are very rare and this is one of the few reports in literature.
Keywords: 23 gauge, pars plana vitrectomy, retinal detachment, silicone oil -
Page 59
The brain is a critical target organ for thyroid hormones, and modifications in memory and cognition happen with thyroid dysfunction. The exact mechanisms underlying learning and memory impairments due to hypothyroidism have not been understood yet. Therefore, this review was aimed to compress the results of previous studies which have examined the contribution of brain tissues oxidative damage in hypothyroidism‑associated learning and memory impairments.
Keywords: Brain tissue oxidative damage, hypothyroidism, learning, memory -
Page 60Background
In this randomized, double‑blinded case–control study, we investigated the intravenous effects of ephedrine or phenylephrine on prevention of post–spinal hypotension in elective lower abdominal surgery under spinal anesthesia.
Materials and MethodsOne hundred and thirty‑five patients, American Society of Anesthesiologists physical status I or II candidate for elective lower abdominal surgery under spinal anesthesia were randomized to three groups (45 each). According to their allocated group, patients received either ephedrine 2.5 mg (E group), phenylephrine (P group) 25 mic as vasopressor or the same volume of saline normal as placebo (S group) immediately after the spinal anesthesia. hemodynamic parameters, and complications were recorded.
ResultsPatients’ demographics were similar in all the groups. The mean systolic blood pressure (SBP), diastolic blood pressure (DBP), and MAP and also heart rate were similar over time for groups E and P (P > 0.05). The incidence of reactive hypertension was more in group E than group P and placebo (P < 0.05). The incidence of nausea and vomiting were significantly lower in groups E and P in comparison with placebo (P < 0.05).
ConclusionAlthough the mean fall of SBP and DBP were significantly less in groups E and P compared with placebo but we did not find significant differences in prophylactic use of ephedrine or phenylephrine for prevention of post–spinal hypotension in elective lower abdominal surgery. Vasopressors infusion have added benefit of lower incidence of nausea and vomiting.
Keywords: Elective lower abdominal surgery, ephedrine, phenylephrinr, postspinal hypotension -
Page 61Background
One of the most common reasons of elbow and forearm pain is lateral epicondylitis diagnosed based on clinical examination. The extracorporeal shock wave therapy is applied for less invasive treatments with different dosages. This study aimed to investigate the effects of high‑ and low‑dose ESW in treating the lateral epicondylitis.
Materials and MethodsThis clinical trial was done in Al Zahra medical center on 40 patients who were selected randomly and divided into two groups. After VAS, the first group was treated by Duolith SD1 shock wave, energy of 0.25 mj/mm2, 1000 shocks; the second was treated by focus with the energy of 0.10 mj/mm2, 1000 shocks per session for 15 minutes with weekly intervals in three sessions. The patients were also treated with drugs (NSAIDs) and the visual analog scale (VAS) was reassessed 1 week after the last session and 12 weeks after finishing the treatment.
ResultsThe mean of pain intensity during study was decreased in the two groups but reduction of pain intensity in the low‑dose groups was higher than the high‑dose groups (P = 0.001). Changes in other parameters including wrist extension test, middle finger extension test and PG was also similar.
ConclusionExtra corporeal shockwave therapy can be effective in treating lateral epicondylitis, but its effects usually appear in after 2 or 3 months and using the low dose of this treating method has more desirable therapeutic effects
Keywords: Lateral epicondilitis, musculocutaneus diseases, shock wave -
Page 62Background
Due to the recent emerging information on the antioxidant properties of soy products, substitution of soy milk for milk in the diet has been proposed by some nutritionists. We aimed to compare four distinct antioxidant measuring methods in the evaluation of antioxidant properties of industrial ultra-high temperature (UHT) milk, UHT soy milk, and their fermented products by Lactobacillus plantarum A7.
Materials and MethodsAscorbate auto-oxidation inhibition assay, 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) free radical scavenging method, hydrogen peroxide neutralization assay and reducing activity test were compared for the homogeneity and accuracy of the results.
ResultsThe results obtained by the four tested methods did not completely match with each other. The results of the DPPH assay and the reducing activity were more coordinated than the other methods. By the use of these methods, the antioxidant capability of UHT soy milk was measured more than UHT milk (33.51 ± 6.00% and 945 ± 56 μM cysteine compared to 8.70 ± 3.20% and 795 ± 82 μM cysteine). The negative effect of fermentation on the antioxidant potential of UHT soy milk was revealed as ascorbate auto-oxidation inhibition assay, DPPH method and reducing activity tests ended to approximately 52%, 58%, and 80% reduction in antioxidant potential of UHT soy milk, respectively.
ConclusionsThe antioxidative properties of UHT soy milk could not be solely due to its phenolic components. Peptides and amino acids derived from thermal processing in soy milk probably have a main role in its antioxidant activity, which should be studied in the future.
Keywords: Antioxidative properties, Lactobacillus plantarum A7, soy milk, ultra-high temperature milk -
Page 63Background
The global epidemic of unhealthy lifestyle causes to increase chronic disease. It has been proven that psychological factors such as self‑efficacy are responsible to success in the process of lifestyle change. Low self‑efficacy is usually related to low level of physical activity and medication adherence. Objective of the study was to investigate the effects of self‑efficacy, other physical symptoms on physical activity and medication adherence in patients with chronic illness in public health centers.
Materials and MethodsA cross‑sectional study was conducted on 483 patients with chronic diseases attended to governmental health care centers in Isfahan. Participants were chosen by systematic random sampling. Inclusion criteria were having a chronic illness at least 6‑month ago while prescription of medication and willing to take part in the survey. The parts of Stanford Self‑management Questionnaire were used. Data were analyzed by SPSS 18 software using the descriptive and analytic statistics. P < 0.05 was considered significant.
ResultsMean age of participants was 54.8 (7.22) years. The half of participants had low self‑efficacy and 87.2% had low physical activity. Nearly 80% of patients had a good medication adherence. There was a significant relationship between self‑efficacy and physical activity (P = 0.336, β = 1.01, P < 0.001).
ConclusionAlthough chronic disease patients had a good medication adherence, other self‑care behaviors such as physical activity has been neglected. It is seemed that concentration on psychological factors such as self‑efficacy should be considered as a proximal factor to improve self‑care.
Keywords: Chronic disease, medication adherence, middle‑aged, physical activity, self‑efficacy -
Page 64Background
The global epidemic of unhealthy lifestyle causes to increase chronic disease. It has been proven that psychological factors such as self‑efficacy are responsible to success in the process of lifestyle change. Low self‑efficacy is usually related to low level of physical activity and medication adherence. Objective of the study was to investigate the effects of self‑efficacy, other physical symptoms on physical activity and medication adherence in patients with chronic illness in public health centers.
Materials and MethodsA cross‑sectional study was conducted on 483 patients with chronic diseases attended to governmental health care centers in Isfahan. Participants were chosen by systematic random sampling. Inclusion criteria were having a chronic illness at least 6‑month ago while prescription of medication and willing to take part in the survey. The parts of Stanford Self‑management Questionnaire were used. Data were analyzed by SPSS 18 software using the descriptive and analytic statistics. P < 0.05 was considered significant.
ResultsMean age of participants was 54.8 (7.22) years. The half of participants had low self‑efficacy and 87.2% had low physical activity. Nearly 80% of patients had a good medication adherence. There was a significant relationship between self‑efficacy and physical activity (P = 0.336, β = 1.01, P < 0.001).
ConclusionAlthough chronic disease patients had a good medication adherence, other self‑care behaviors such as physical activity has been neglected. It is seemed that concentration on psychological factors such as self‑efficacy should be considered as a proximal factor to improve self‑care.
Keywords: Chronic disease, medication adherence, middle‑aged, physical activity, self‑efficacy