Showing 9 results for Omidfar
Fatemeh Mohammadzadeh, Kobra Omidfar, Ramin Heshmat, Mazaher Rahmani, Bagher Larijani,
Volume 6, Issue 3 (17 2007)
Abstract
Background: Microalbominuria (MA) is early presentation of renal damage which acts as an independent factor of cardiovascular events in these patients. There are various methods for sampling and also different laboratory tests to measuring albominuria. The aim of this study was to compare of different urine collection methods for measuring albominuria using immunoturbidometry assay which has acceptable accuracy and sensitivity after HPLC (High Performance Lipid Chromathography).
Methods: Forty seven diabetic patients were selected for a cross-sectional study in 2006. For all patients 24-h urine sample were collected, also an overnight urine sample (8 hour long) and spot urine sample (morning time) was provided in the next day. The level of albumin in all samples were measured via immunoturbidometry assay. Then the results of agreement coefficient were accounted and comprised with each others.
Results: In this study 47 patients were selected which 46 of them were type 2 and one of them type 1 diabetic. Our results revealed significant correlation between all methods. In addition agreement coefficient (kappa) was accounted for all methods, time 24-h urine in comparison with 8 hours overnight urine, timed 24-h urine in comparison with spot urine and overnight urine samples in comparison with spot urine which were 0.876, 0.936 and 0.807 respectively.
Conclusion: Regarding significant agreement for screening of microalbominuria between different collecting methods, we suggest 8-h overnight or spot urine sampling carry out instead of 24-h urine collection.
Malihe Aveseh, Rohollah Nikooie, Fereshteh Atabi, Zahra Mirzaie Zadeh , Kobra Omidfar, Bagher Larijani,
Volume 13, Issue 2 (1-2014)
Abstract
Background: the aim of this study was to investigate the effect of seven weeks endurance training on
RBP4 gene expression in Soleus and Extensor Digitrum Longouse (EDL) Muscles, liver, visceral and
subcutaneous fat in type 2 diabetic rats.
Methods: 50 male wistar rats (5 weeks years old, weight = 93.7 ± 8.9) were purchased and randomly
divided into four groups: Control (n=10) (C), Trained (n=10) (T), Diabetic Control (n=15) (DC) and
Trained diabetic (n=15) (TD). Diabetes was induced by injection of low dose of streptozotocin (STZ)
and feeding with high fat diet. Insulin resistance accuracy was confirmed by HOMA-IR index and
Real-time PCR was used for mRNA content.
Results: After seven weeks of diabetes induction, the RBP4 mRNA content of the liver (2.37-fold P <
0.01), visceral fat (2.33-fold P < 0.01), and subcutaneous fat (1.83-fold P < 0.05), soleus (1.21-fold
P < 0.05) and EDL (2.03-fold P < 0.05) were increased. After seven weeks of endurance training
significant decrease in RBP4 mRNA content was found in visceral fat (P < 0.05), subcutaneous fat (P
< 0.05) and EDL (P < 0.05) between DC and CD. In addition, significant difference between T and TD
groups was found for RBP4 mRNA content in liver (p < 0.01), subcutaneous fat (P < 0.01) and EDL
(P < 0.01) after seven weeks of endurance training.
Conclusion: Type 2 diabetes considerably increases skeletal muscle RBP4 expression in isoform-
specific manner. This increase is also seen in liver, subcutaneous and visceral fat. In addition,
endurance training decreases the RBP4 expression in EDL, subcutaneous and visceral fat.
Leila Eini, Negar Naghash, Bagher Larijani, Jafar Ai, Keivan Majidzadeh, Esmaeil Sadroddiny, Kobra Omidfar,
Volume 13, Issue 2 (1-2014)
Abstract
Background: Mesenchymal stem cells (MSCs), also known as mesenchymal stromal cells, are
considered as an important source of adult stem cells in tissue engineering and cell therapy. They are
present in various tissues such as, endometrium as the supportive cells. According to anatomical
position of endometrial mesenchymal stem cells that put them in neighborhood of the fetus, they may
have a significant role in fetus tolerance during pregnancy.
This study was conducted to evaluate the molecular mechanism of immunosuppressive affect of
endometrial mesenchymal stem cells.
Methods: Mesenchymal Cells from bone marrow and endometrium were cultured at density of 2 ×105
cells/ml at presence of 100IU/ml and 500IU/ml INF-γ (IFN-gamma) and expression of indoleamine 2
3-dioxygenase (IDO) were studied after 72 hours by real-time PCR and immunocytochemistry.
Results: The study showed that IDO expression in cells exposed to IFN-γ was increased compared to
the cells in the absence of IFN-γ (p<0.05). Additionally, up regulation of IDO expression was higher
in endometrial cells than bone marrow cells.
Conclusion: From these results it is concluded that endometrial mesenchymal stem cells may be used
as a good candidate for cell therapy.
Rohollah Nikooie, Malihe Aveseh, Kobra Omidfar,
Volume 13, Issue 2 (1-2014)
Abstract
Background: the aim of the present study was to investigate the effects of diabetes and seven weeks
of endurance training on RBP4 expression in Soleus, extensor digiturom longuse (EDL), liver, visceral
and subcutaneous fat in type 2 diabetic rats.
Methods: Fifty male wistar rats (93.7 ± 8.9 g) were randomly divided into four groups including:
control (C) [n=10], trained (T) [n=10], diabetic control (DC) [n=15] and diabetic trained (TD) [n=15].
The combination of Intraperitoneally injection of streptozotocin (STZ) and high fat diet feeding were
used for diabetes induction. After seven weeks of endurance training, serum RBP4 and its expression
in above tissues were measured by ELISA and western blotting techniques, respectively.
Results: diabetes induction increased the RBP4 expression of the liver (3.57-fold, p < 0.01), visceral
fat (2.02-fold, p < 0.01), and subcutaneous fat (1.84-fold, p < 0.01) and EDL (2.29-fold, p < 0.01) in
DC in comparison to C group. Serum RBP4 concentration was significantly higher in DC (2.9-fold, p
< 0.01) and TD (1.84-fold, p < 0.01) in comparison to C group. Endurance training significantly
decreased serum RBP4 (p < 0.01) and its expression in visceral fat (p < 0.01) in DT in comparison to
DC.
Conclusion: type 2 diabetes extensively decreases the skeletal muscle RBP4 expression in isoform –
specific manner, liver, subcutaneous and visceral fat. In addition, endurance training decreases serum
RBP4 concentration and its expression in visceral fat.
Zahra Mirzaeezadeh, Hajar Zarei, Kobra Omidfar,
Volume 13, Issue 3 (3-2014)
Abstract
Background: In this study, using anti-human serum albumin (HSA)-conjugated gold nanoparticles
(AuNPs) as an electrochemical label and mobile crystalline material-41 (MCM-41)–polyvinyl alcohol
(PVA) mesoporous nanocomposite as an immobilization platform, a new immunosensor was
established.
Methods: Field emission scanning electron microscopy (FESEM), cyclic voltammetry (CV), and
differential pulse voltammetry (DPV) have been applied to determine the physicochemical and
electrochemical properties of this hybrid film in immunosensor development.
Results: A suitable attachment between HSA and MCM-41 and also a thick layer deposition of
MCM-41–HSA–PVA film onto the electrode surfaces was observed by FESEM. DPV was employed
for quantitative determination of antigen.
Conclusion: In optimal conditions, this immunosensor could detect HSA in a high linear range (0.5–
200 µg ml
-1
with a low detection limit of 1 ng ml
-1
. This new strategy showed acceptable
reproducibility, stability, and reliability and could also be applied to detect the other antigens.
Amirabbas Monazzami, Hamid Rajabi, Kobra Omidfar, Ali Mostafaie,
Volume 13, Issue 5 (7-2014)
Abstract
Background: The purpose of this study was to investigate the effects of endurance training on muscle NHE1 and NBC1 gene expressions in type 2 diabetic rats.
Methods: Male wistar rats (n=40), 4weeks old and 93.7±9.8g, were randomly selected and divided into control, diabetic control and diabetic training groups. The Endurance training was performed for 7 weeks on diabetic training groups (running on treadmill forrodent). NHE1 and NBC1 gene expression were determined by Realtime-PCR technique. The differences between groups in variables were determined by an independent t-test using REST Software.
Results: NHE1 mRNA expression reduced significantly in EDL and Soleus by 25% and 19% in the diabetic control group compared with the control group, respectively (P<0/05).NHE1 mRNA expression also reduced significantly in EDL and Soleus by 35% and 29% in the diabetic control group compared with the control group, respectively (P<0/05).Endurance training increased NHE1 and NBC1 geneexpressions in both EDL and Soleus in the diabetic training group.
Conclusion: The present study showed that NHE1 and NBC1 mRNA expressions decreased significantly in the diabetic control group and endurance training increased NHE1 and NBC1 mRNA expressions in the diabetic trained group leading to normalizing the mRNAs in diabetic trained group.
Maryam Mortezaee, Abbasali Raz, Shole Mansouri, Zohreh Annabestani, Zahra Mirzaeezadeh, Bagher Larijani, Mehrdad Hashemi, Kobra Omidfar,
Volume 15, Issue 5 (7-2016)
Abstract
Background: Insulin resistance and progressive β-cells failure are the key factors in type 2 diabetes mellitus (T2DM) pathogenesis. Many studies support a primary role of RBP4 in insulin resistance and suggest that genetic variations which alter the expression level of RBP4 might influence the risk of T2DM and its complications. Diabetic foot is one of the main complications of diabetes leading to disability and hospitalization. In addition, it reduces quality of life and imposes great cost to patients. The purpose of this study was to evaluate the correlation between two single nucleotide polymorphisms (rs10882273 and rs10882283) of RBP4 genes with diabetic foot ulcer in order to identify a biomarker for prediction of diabetic foot ulcer.
Methods: This is a case-control study. Two single nucleotide polymorphisms of RBP4 genes were genotyped by hit Tetra ARMS PCR technique. In this study, 100 and 133 diabetic patients with and without foot ulcer were selected as the cases and controls, respectively.
Results: The Chi-square test revealed no significant difference in frequency of TT, CC and TC alleles of rsl0882273 between case and control groups (P=0.414). Also, Comparison of AA, CC and AC alleles of rsl0882283 in both groups did not show significant difference (P=0.85).
Conclusion: According to this study, there is no relationship between two single nucleotide polymorphisms of RBP4 genes (rs10882273 and rs10882283) with diabetic foot ulcer in type2 diabetes patients.
Sharare Hassanzade, Abbasali Raz, Masoumeh Mansouri, Zahra Mirzaeezadeh, Bagher Larijani, Mehrdad Hashemi, Kobra Omidfar,
Volume 16, Issue 1 (1-2017)
Abstract
Background: Type 2 diabetes is a metabolic disorder characterized by high blood sugar levels that can damage nerves. Many organs are affected ،especially the foot that leading to loss of sensation. These factors make favorable conditions for the development of diabetic foot ulcers. Polymorphisms (Thr399Ile) of Toll Like Receptor4 (TLR4) gene due to malfunction of TLR4 protein which plays an important role in immunity. The purpose of this study was to determine the parameters which are affecting the imbalance resulting in chronic inflammation and wound healing. By showing the relationship between single nucleotide polymorphism (Thr399Ile) of TLR4 gene with diabetic foot ulcer we can identify a biomarker for prediction of diabetic foot ulcer.
Methods: This is a case-control study. Single nucleotide polymorphisms of TLR4 gene were genotyped by hit Tetra ARMS PCR technique. In this study, 100 and 120 diabetic patients with and without foot ulcer were selected as the cases and controls, respectively.
Results: The Chi-square test revealed significant difference in frequency of TT, CC and TC alleles of (Thr399Ile) between case and control groups (P=0.021).
Conclusion: According to this study, there is a relationship between single nucleotide polymorphisms (Thr399Ile) of TLR4 gene with diabetic foot ulcer in type 2 diabetes patients
Sahar Shafiee, Abbasali Raz, Neda Adibi, Masoomeh Mansouri, Zohreh Annabestani, Zahra Mirzaeezadeh, Mehrdad Hashemi, Kobra Omidfar,
Volume 17, Issue 1 (3-2018)
Abstract
Background: Type 2 diabetes is the most common type of diabetes, and a complex endocrine metabolic disorder that one of its main complications is diabetic foot ulcers. Matrix metalloproteinases (MMPs) are one of the key enzymes in the reconstruction of extracellular matrix which have proteolytic activity. The aim of this research is based on evaluating relationship between -1562 C>T allele at MMP-9 gene promoter with diabetic foot ulcer in type II diabetic patients. If such correlation proves, it can be used as a prognostic biomarker in patients with high-risk.
Methods: This is a case-control study. The single nucleotide polymorphism of -1562C>T allele of MMP9 gene promoter was genotyped by hit Tetra ARMS PCR technique in 100 diabetic patients with foot ulcer grade 1 or 2 as the case group according Wagner classification and in 100 diabetic patients without foot ulcer as the control group. Results: The Chi-square test revealed significant difference in genotype frequency of CC, CT and TT alleles of -1562C>T allele of MMP9 gene promoter between case and control groups (P=0.000).
Conclusion: According to this study, there is a relationship between -1562C>T allele of MMP9 gene promoter with diabetic foot ulcer in type2 diabetes patients. Thus we can introduce this biomarker for evaluation of risk and prognosis of diabetic foot ulcers.
