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Marcher Hovmand posted an update 3 months, 3 weeks ago
Fanconi anemia includes a number of clinically and genetically diverse disorders all of them being associated with genomic instability. Some previous studies reported higher frequencies of certain HLA alleles in patients with Fanconi anemia. In the current study, we genotyped HLA-A/B/DRB1 alleles in 40 Iranian patients with Fanconi anemia. We also genotyped these alleles in the same number of Iranian sex-matched healthy individuals. The frequency of DRB1*11 was significantly higher in patients compared with controls (OR (95% CI) = 2.143 [1.05, 4.46], P value = 0.036). On the other hand, the frequencies of DRB1*13 and B*13 were lower in patients compared with controls (OR (95% CI) = 0.134 [0.02, 0.55], P value = 0.003 and OR (95% CI) = 0.13 [0.01, 0.89], P value = 0.035, respectively). Assessment of genetic divergence using Fstat test showed complete divergence in HLA-A, -B, -DRB1 alleles and haplotypes between patients and controls. The current study provides evidences for different distribution of HLA alleles between patients with Fanconi anemia and healthy subjects.Studies on the blood of patients with prostate cancer using Dynamic Light Scattering (DLS) and corona protein size changes have shown that this test is highly specific and sensitive, but this method has not been studied in Iran, and therefore this study intends to perform this procedure using gold nanoparticles in prostate cancer detection. Blood samples of 60 male subjects aged 40-90 years were collected from 20 healthy, 20 benign and 20 prostate cancer patients. Optical scattering changes were measured by the level of gold nanoparticles mixed with these sera, and the responses were compared with the PSA index (Prostate Specific Antigen) of the subjects. Results of D2/D1 ratio analysis were performed using SPSS statistical software R. No significant differences were found in the size of the corona protein structure between the three groups of males with cancer, males with benign tumor, and healthy males. No correlation was found between the light scattering concentration and PSA serum level Due to changes in ambient temperature, prolonged test duration or high IgG levels in apparently healthy individuals, this test is not feasible in Iran. gp91ds-tat Performing this test requires advanced equipment to maintain the same temperature that do not exist in Iran. DLS also has major limitations for prostate cancer detection, so it cannot be a simple and accurate method for the early detection of prostate cancer, and it is suggested that other methods be used to diagnose.BACKGROUND Previously, hemorheology studies using Rheoscan mainly focused on chronic kidney disease, cardiovascular disease, and endocrine disease in adults. The study using LORCA focused on erythrocyte disease. There were no studies using Rheoscan in children. OBJECTIVE We aimed to investigate erythrocyte deformability among various hematologic diseases occurring in children, namely, iron deficiency anemia (IDA), hereditary spherocytosis (HS), immune thrombocytopenia (ITP), and aplastic anemia (AA). METHODS Differences between those with HS, IDA, ITP, AA and healthy controls were compared among 43 patients, comprising 7 patients with HS, 8 patients with IDA, 6 patients with AA, 9 patients with ITP, and 13 healthy controls. Erythrocyte deformability was measured using a microfluidic ektacytometer (RheoScan-D, RheoMeditech, Seoul, Korea). The erythrocyte elongation index (EI) was defined as (L – W)/(L + W), where L and W are the major and minor axes of the ellipse, respectively. RESULTS The EI values of IDA, HS and AA were significantly decreased compared with healthy controls, but those of ITP were similar to healthy controls. CONCLUSIONS This study showed that erythrocyte deformability differed among various hematologic diseases. Further study concerning correlation in relation to the diagnostic and prognostic significance of erythrocyte deformability in hematologic disease is needed.It has been reported that the beta-adrenergic receptor blocker (propranolol) and the a-adrenergic receptor (AR) blocker (phentolamine) both can inhibit human endothelial cell (EC) angiogenesis in vitro. However, it is unknown whether this inhibition also acts on pericytes. The present study aimed to determine how pericytes react to treatment with an a-/β-AR blocker. In the study, cell proliferation assays and scratch assay were performed to assess the effect of phentolamine or propranolol on cell proliferation and migration. Western blot and ELISA were employed to determine changes in VEGF-A and Ang-1 expression levels. The results indicated that the nonselective a-/β- AR blocker inhibited the proliferation, migration, and secretion of pericytes. The use of the nonselective a-/β- AR blocker might have an impact on vascularization and vascular maturation. Our research suggests the rational use of nonselective a-/β- AR blockers to treat angiogenesis-dependent diseases.BACKGROUND There has been variability between laboratories in the identification of CSC markers for epithelial ovarian cancer (EOC). We have evaluated the 3 new surface markers for EOC to identify CSCs more precisely. METHODS Three new putative CSCs specific surface markers CD9, CD24 and EPHA1 identified by a bioinformatics approach were evaluated in normal ovary, fallopian tube and ovarian tumours. RESULTS The expression of CD9 alone was observed in normal ovarian surface epithelium and fallopian tube whereas CD24 and EPHA1 were not expressed (n= 5). CD24 was expressed in all tumours (N= 101) while CD9 and EPHA1 were expressed in 89 and 71 tumours, respectively. The statistical analysis showed significant correlation of the stage of the disease (p less then 0.0001), type of surgery (p less then 0.0001) and residual disease (p less then 0.0001) with overall survival. Although expression of CD9, CD24 and EPHA1 was observed in the majority of tumours there was no significant correlation with outcome. In patients who underwent primary surgery, increased expression of CD24 significantly correlated with poor survival. The expression of CD24 was significantly reduced (p less then 0.002) upon analysis of paired sections from patients prior to surgery and at interval debulking surgery (n= 16). CONCLUSION These findings suggest that overexpression of these new markers may be useful in identifying and targeting ovarian CSCs and CD24 may be a putative CSCs marker in ovarian cancer.