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Showing 6 results for Bahadori
Evaluation of primary cutaneous malignant melanoma according to Breslow and Clarke pathological indices
Z. Safaii Naraghi, M. Bahadori, A.h. Ehsani, R. Mahmoud Robati, M. Ghiasi, Z. Nozan,
Volume 64, Issue 5 (1 2006)
Abstract

Background: Malignant melanoma is one of the fatal cutaneous neoplasms which are curable by early diagnosis. This neoplasm is diagnosed by the biopsy of the suspected lesion. It is essential to classify the tumor based on its histology, thickness, phase of growth, level of invasion, mitotic rate, presence of regression, inflammatory infiltration and ulceration. These descriptions yield some knowledge about the progression of disease and suggest an estimate of the status of the screening system for early diagnosis.

Methods: This is a cross-sectional retrospective descriptive study. Pathological slides with diagnosis of malignant melanoma from 1377 to 1379 that present in the pathology department were assessed according to mentioned pathological indices and the 10-year survival calculated in this regard.        

Results: We assessed 47 cases with mean age of 57.38 (SD=5.85) and the gender distribution was 51.1% male and 42.2% female. More than 42% of cases were in Clarke level I, 2.1% Clarke level II, 6.4% Clarke level III, 40.4% Clarke level IV and 8.5% Clarke level V. Fifty three percent of patients were breslow thickness equal to or less than 0.75 millimeter(mm) , 8.5% between 0.76 to 1.69 mm , 27.7% between 1.7 to 3.6 mm and 10.6% greater than 3.61 mm. Mean breslow thickness show no significant difference between males and females but there is a significant relation between thickness and age of the patients. Mean 10-year survivals of patients were 75% and were greater in females than males. We found a linear relation between patient age and breslow thickness that is calculated by the following equation: Log Breslow thickness (mm) = - 0.625 + 0.016×age (year)

Conclusion: Complete recording of clinical and pathological data of patients with malignant melanoma make a proper stream to reach a surveillance system.


Progesterone and the latency period: threatened preterm labor
Bahadori F, Borna S, Shakouie Nejad S, Sahabi N,
Volume 66, Issue 3 (2 2008)
Abstract

Background: Preterm labor is a major contributor to neonatal morbidity and mortality and results in increased obstetric and pediatric care costs. The purpose of this study was to assess the effects of vaginal progesterone for maintenance therapy following treatment of threatened preterm labor for preventing preterm birth.
Methods: The study included 70 singleton pregnant women with preterm labor with intact membranes. Patients were randomized to receive either maintenance vaginal progesterone therapy (n=37) administered (400 mg) daily or no treatment (controls, n=33) after discontinuation of acute intravenous tocolysis.
Results: The two groups were similar with at respect to maternal age, race, parity, gestational age at admission, bishop score, and preterm delivery risk factors .Compared to the control group, the mean ±SD time gained from initiation of maintenance therapy to delivery (36/1117/9 versus 24/5227/2) (meanSD) days, p=0.037) and the gestational age at delivery (36.071.56 vs. 34.51.3 weeks, p=0.041) were higher in the vaginal progesterone maintenance therapy group. No significant differences were found with recurrent preterm labor 13 (35.1%) versus 19 (57.6%), p=0.092. Respiratory distress syndrome 4 (10.8%) versus 12 (36.4%) p=0.021, Low birth weight10 (27%) versus, 17 (51.5%) p=0.04, birth weight (3101.54±587.9gr versus r 2609.39±662.9gr, p=0.002) were significantly different between the two groups.
Conclusion: The gestational age and time gained from initiation of maintenance therapy to delivery were longer in women receiving vaginal maintenance tocolysis with progesterone and improve perinatal outcomes. However, maintenance therapy did not decrease the recurrence of preterm labor episodes.


Amniotic fluid OD 650 level and its sensitivity and specificity in prediction of fetal lung maturity
Khezerdost S, Bahadori F, Shafaat M, Yahyazadeh H, Yahyazadeh N, Amini E,
Volume 66, Issue 10 (4 2009)
Abstract

Background: Tumor cells need food and oxygen supply for growth and division. Therefore one of the most promising areas of cancer therapy focuses on using agents that inhibit tumor angiogenesis. Inhibition of angiogenesis prevents cell growth, division and metastasis. Previous studies showed that plasminogen related Protein-B has an anti-tumor activity in mice. This protein has a high level of homology with preactivation Peptide (PAP) of human plasminogen. According to this high homology, antiangiogeneic activity of PAP was investigated in an in vitro angiogenesis model.

Methods: PAP encoding region of human plasminogen gene was isolated by Polymerase Chain Reaction and ‎cloned in pGEX-2T vector. This plasmid was expressed in Escherichia coli as a fusion protein (GST-PAP). ‎GST-PAP was expressed as inclusion body and purified by affinity chromatography on GSH-sepharose ‎resin after refolding. antiangiogenic effects of purified protein were surveyed with Matrigel assay‏.‏‎ ‎

Results: The GST-PAP was expressed and purified and its accuracy was confirmed by SDS-PAGE analysis ‎and immunoblotting. Microscopic studies showed that GST-PAP inhibited angiogenesis in Matrigel system ‎which is shown by shrinking the length of capillary like structures and a decrease in the number of tubule. ‎While applying concentarations of 25μg/ml of GST-PAP and concentrations above that, antiangiogenic ‎activity of GST-PAP was significant comparing to the controls. ‎

Conclusion: Finding shows that GST-PAP can inhibit network formation in Matrigel system. This findings ‎support the theory that PAP is a potent angiogenesis inhibitor.‎


The relationship between vitamin D and gestational diabetes
Fatemeh Bahadori , Zahra Sahebazzamani , Leila Zarei, Neda Valizadeh,
Volume 76, Issue 9 (December 2018)
Abstract
Background: Gestational diabetes is one of the common causes of maternal and fetal complications. Due to fetal and maternal complications of diabetes, it is very important to reduce the prevalence of diabetes and its consequences. The relationship between vitamin D deficiency and type 2 diabetes has been reported. There is little information about the relationship between serum vitamin D levels and the risk of gestational diabetes mellitus (GDM). The aim of this study was to determine the relationship between the levels of vitamin D and gestational diabetes.
Methods: This case-control study was conducted in health centers of Urmia University of Medical Sciences in May 2015 until March 2016. A total of 100 pregnant women with gestational diabetes and 100 healthy pregnant women were entered into the study by nonrandom and available sampling. The level of vitamin D was measured and levels were divided into three levels. Vitamin D levels were considered less than 20 ng/ml, 20-30 ng/ml and more than 30 ng/ml as deficiency, insufficiency and sufficient, respectively. Exclusion criteria include pre-pregnancy glucose tolerance, history of medical disease, and supplementation with vitamin D.
Results: The mean age of women in the study group was 30.31±5 years and in the control group was 28.83±4.95 years (P=0.06). The vitamin D levels in GDM and control groups were 7.25±4.76 ng/ml and 11.93±16.12 ng/ml, which is lower in the gestational diabetes than the control group (P=0.01). The severe deficiency of vitamin D in the gestational diabetes group and in control group were 34% and 27% respectively (P<0.0001). There was a significant difference in mean fasting plasma glucose level between gestational diabetes group and healthy pregnant group (P<0.001). There was no relationship between vitamin D levels and body mass index of pregnant women (P=0.1).
Conclusion: In this study, the majority of patients had vitamin D deficiency and in the gestational diabetes group, vitamin D deficiency was significantly higher than the control group. The severe deficiency of vitamin D in the gestational diabetes group was higher than patients without gestational diabetes.

Prenatal diagnostic tests of genetic disorders: review article
Zahra Aryan, Atekeh Bahadori , Dariush Farhud,
Volume 77, Issue 1 (April 2019)
Abstract
The purpose of prenatal diagnosis tests is insisting of diagnosis of neonatal disorders, preparing a range of informed choices and making couples at risk to be ready for having children with genetic disorders as well. The aim of this article is to investigate all of the tests in order to determine the best one which has the lowest risk and the highest sensitivity. Screening tests (maternal blood test and ultrasonography for first and second trimester) are testing patients without symptoms who are at low risk. These tests are carried out in the early stages of pregnancy, and the risk of genetic diseases would be estimated. They are safe and also might be helpful in determining whether invasive prenatal genetic tests including chorionic villus sampling, amniocentesis, and percutaneous umbilical blood sampling are needed. Diagnostic test is insisting of invasive tests: amniocentesis, chorionic villus sampling (CVS), cordocentesis, and preimplantation genetic diagnosis (PGD), which is a genetic test on cells removed from embryos to help select the best ones to avoid some of genetic diseases, fluorescence in situ hybridization (FISH), QF-PCR, multiplex ligation probe amplification (MLPA), next generation sequencing (NGS), comparative genomic hybridization (CGH), and non-invasive tests: ultrasound, prenatal sonography, cell free fetal DNA, triple and quadruple screen: alpha fetoprotein (AFP), human chorionic gonadotropin (hCG), unconjugated estriol (uE3), inhibin-A). These tests are intended for patients who have apparent symptoms and the results of their early stages of pregnancy have been positive. Non-invasive prenatal tests (NIPT), sometimes called noninvasive prenatal screening (NIPS), have features of both screening and diagnostic tests, but, now screening test is more considerable. Small fragments of DNA would be analyzed by this testing in which they are circulating in a pregnant woman’s blood. While most DNA is found inside a cell’s nucleus, these fragments are free-floating and not within cells, at this point, they are called cell-free DNA (cfDNA) which usually contain fewer than 200 DNA building blocks (base pairs). Non-invasive prenatal tests is more sensitive with the high degree of specify to determine trisomy 13, 18 and 21 in women who are at increased risk of having offspring with genetic disorders.

Comparison of MTT, trypan blue, and clonogenic assay, to determine the viability in human anaplastic thyroid cancer cell line
Marjan Ghorbani-Anarkooli , Sara Dabirian, Hasan Moladoust, Adib Zendedel, Mohammad Hadi Bahadori,
Volume 77, Issue 1 (April 2019)
Abstract
Background: Evaluation of cell viability is momentous in pharmacologic and oncological research. Cell viability evaluation determines cell sensitivity and consequently treatment outcome. Various methods are available to determine cell survival. Each of these methods evaluates different endpoints. Accordingly, determining the correlation between these methods is important. In this study, in order to determine the viability of human anaplastic thyroid cancer cell line, the sensitivity of MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] assay, trypan blue test and clonogenic assay were compared.
Methods: This experimental study was performed in the Cellular and Molecular Research Center at Guilan University of Medical Sciences, Rasht, Iran from October 2016 to March 2017. The human anaplastic thyroid cancer cell line was cultured in Dulbecco's modified Eagle's medium (DMEM) with 10% fetal bovine serum (FBS). The cultured cells were treated with melatonin, for 24 hours. Then, the viability of the cells was evaluated by MTT assay, trypan blue test and clonogenic assay. Furthermore, plating efficiency and surviving fraction were used in order to draw survival curve in the clonogenic assay.
Results: The concentration of melatonin at IC50 point was 4.794±0.117 millimolar (mM) in MTT assay, 4.375±0.894 mM in trypan blue test and 2.246±0.326 mM in clonogenic assay. Comparing the IC50 values of these test revealed that C50 values obtained from MTT assay and trypan blue test had no significant difference (P=0.6446), while there was a significant difference between IC50 values obtained from MTT and clonogenic assays (P=0.0032). Moreover, the IC50 values obtained from trypan blue test and clonogenic assay were also significantly different (P=0.0078). The results of the regression analysis of cell viability were shown a linear, positive and significant correlation between these three methods and MTT assay and trypan blue test showed higher correlation (r=0.99, P<0.001).
Conclusion: Based on our results, all these methods were effective to identify cytotoxicity in human anaplastic thyroid cancer cell line, while MTT assay and trypan blue test were more sensitive than clonogenic assay.

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