8 research outputs found

    Association of rs16917496 polymorphism at the miR-502 binding site in the SET8 3'UTR with the risk of Prostate Cancer and benign prostatic hyperplasia

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    Background: MicroRNAs (miRNAs) can bind to the 3'-untranslated regions (UTRs) of messenger RNAs, where they interfere with translation and thereby regulate cell differentiation, apoptosis, and tumorigenesis. Genetic polymorphisms in the 3'-UTRs targeted by miRNAs alter the strength of miRNA binding in a manner that affects the behavior of individual miRNAs. The histone methyltransferase SET8 has been reported to be a regulator of Tumor Protein 53 (TP53) methylation, a tumor suppressor gene, and regulate genomic stability. Furthermore, an association between the TP53 and Prostate Cancer has been reported in several studies. The present study aimed to evaluate whether (rs16917496) polymorphism at the miR-502 binding site in the 3' untranslated region of the histone methyltransferase SET8 is associated with the expression of this gene in Benign Prostatic Hyperplasia (BPH) and prostate cancer (PCa) patients.Materials and Methods: We examined whether an rs16917496 polymorphism is associated with the risk of PCa and BPH in the Iranian population. This case-control study included 40 patients with pathologically confirmed PCa, 59 patients with BPH, and 45 controls. The rs16917496 polymorphism was determined using a restriction fragment length polymorphism (RFLP).Results: We found significant association of rs16917496 in benign prostatic hyperplasia (BPH). The most frequent genotype in the control, prostate cancer, and BPH groups were TT, TC, and CC, respectively.Conclusion: This study demonstrates that the heterozygote genotype of the SET8 polymorphism in the mir-502 gene could be considered a risk factor for the emergence of prostate cancer

    The structure Biology and Application of Phytohemagglutinin (PHA) in Phytomedicine: With special up-to-date references to lectins

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    Lectins first discovered more than 100 years ago in plants, they are now known to be present throughout nature. Phytohemagglutinin (PHA), the lectin extract from the red kidney bean (Phaseolus Vulgaris), contain potent, cell agglutinating and mitogenic activities. They play a role in biological recognition phenomena involving cells and proteins towards medical applications. The present article is a brief review of the history of lectin in nature.  By reviewing the web-based search for all types of peer review articles published, was initiated using ISI web of Sciences and Medline / PubMed, and other pertinent references on websites about lectins. Here, we present a brief account of 100-plus years of lectin research and show how these proteins have become the focus of intense interest for biologists and in particular for the research and applications in medicine. Phytohemagglutinin, has been widely used for mitotic stimulation to human lymphocytes, cell arrest, or apoptosis, potential sources for developing novel  pharmaceutical preparation    and intensive interest for health care services, biologist and phytomedicine  research can be considere

    Analysis of the androgen receptor CAG repeats length in Iranian patients with idiopathic non-obstructive azoospermia

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    Objective: The present study was performed to determine whether expansion of the CAG repeat in exon 1 of the AR gene is correlated with non-obstructive azoospermia (NOA) in Iranian infertile men. Methods: The CAG repeat length was investigated in 307 Iranian men, 104 infertile men with NOA and 203 fertile controls using primers flanking the CAG repeat region in exon 1 of the AR gene. Results: The most common allele in the patients and controls was 23 (18.39%) and 21 (19.70%) CAG repeats with the mean number of 21.97 ± 2.772 and 21.10 ± 2.674, respectively (P = 0.013). Conclusion: Although our results indicate a significant negative correlation between the length of CAG repeat and male infertility, however, other genetic modifiers may be required in order to cause male infertility

    Soluble Receptor for Advanced Glycation End Products (sRAGE) is Up-Regulated in Multiple Sclerosis Patients Treated with Interferon β-1a

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    Background/Aims: Multiple sclerosis (MS) is a chronic inflammatory disorder of the central nervous system. Considering the role of immune system in its pathogenesis, researchers have focused on evaluation of the expression of immune-related genes or proteins in MS patients. Among proteins whose participation in inflammatory process has been documented is the receptor for advanced glycation end products (RAGE). Methods: In the present study, we compared RAGE transcript levels by means of quantitative real-time PCR as well as the serum level of soluble RAGE (sRAGE) by means of enzyme- linked immunosorbent assay (ELISA) in 50 IFNβ-1a responsive relapsing-remitting MS patients when compared with age and sex-matched healthy subjects. Results: Elevated expression of RAGE as well as higher levels of sRAGE were detected in IFN-β responsive MS patients compared with the controls. A significant inverse correlation between sRAGE plasma concentrations and the expanded disability status scale (EDSS) was also detected in which each unit of increase in sRAGE level resulted in a 0.308 unit decrease in EDSS. Conclusion: Considering the stable clinical state of the MS patients in this study and their response to IFNβ-1a, the elevated levels of sRAGE in patients compared with healthy subjects could be related to the effects of this kind of treatment
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