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Nowadays, the method of high-throughput sequencing seems to be the most optimal to analyze miRNAs. This should be followed by the uniformed bioinformatics procedure to avoid misvalidation. At the end, the proper validation of the obtained results is needed. With such an approach as is described in this review, it would be possible to obtain a reliable biomarker that would characterize the presence of ASD.Objectives Congenital hypogonadotropic hypogonadism (CHH) is a rare condition resulting from GnRH deficiency. Gonadotropin Releasing Hormone 1 (GNRH1) homozygous mutations are an extremely rare cause of normosmic CHH (nCHH). Most heterozygous individuals are asymptomatic, with the notable exception of individuals heterozygous for a p.R31C GNRH1 mutation. Case presentation The patient is an index case from a consanguineous family, presenting with severe CHH and his parents presenting with late puberty and normal fertility. The index case is homozygous for a p.R31H GNRH1 variant, both parents being heterozygous. The analysis of a panel of genes implicated in CHH does not show any other clinically relevant variant in any other gene tested. Selleck SJ6986 Conclusions GNRH1 mutations are a rare cause of nCHH. Five different mutations have been reported so far in homozygous individuals. Most are frameshift in nature but the one reported here causes an amino acid change in the Gonadotropin-releasing hormone (GnRH) decapeptide. Both independently reported patients with the p.R31H mutation are from Turkish origin. The question of the possible role of this mutation in the late puberty of the heterozygous parents needs further documentation. An analogy is made with the heterozygous individuals carrying the p.R31C and displaying partial CHH. No nonreproductive disorder is noted.Objectives To evaluate if the parental origin of X-chromosome has an impact on the phenotype and biochemical profile in Turner syndrome (TS). Result of the previous studies have been equivocal and could be attributable to the multicentric study design with different experts examining heterogeneous TS population of various ethnic background. Methods A cross-sectional single center study from Northern India. Fifty nine diagnosed subjects of TS and their parents participated in the study. Parental origin of intact X-chromosome was determined using 12 highly polymorphic short tandem repeats (STR) on X-chromosome. For the evaluation of parent-of-origin effects, typical phenotypic traits including congenital malformations, anthropometry, body composition by dual energy X-ray absorptiometry (DXA) and biochemical profile were compared. Clinical stigmata of TS in all subjects were examined by a single expert. Results The intact X-chromosome was of maternal origin (Xm) in 49.1% subjects while 50.9% had paternal origin Xp subjects.Objectives Fabry disease (FD, OMIM #301500) is a rare and progressive X-linked lysosomal storage disorder. FD is caused by mutations in the GLA gene on chromosome Xq22. Methods In this article, we aimed to present the largest sample of GLA mutation spectrum including common and novel variants in Turkish population. GLA gene sequence analysis was performed on the subjects who applied to the department of medical genetics with the preliminary diagnosis of FD between 2013 and 2018. Results We detected 22 different mutations as two novel [(p.F69S(c.206T>C), p.P205A (c.613C>G)] and 20 previously reported GLA mutations in 47 individuals from 22 unrelated families. These mutations included 14 missense mutations, four nonsense mutations, two small deletions, one small deletion/insertion and one small insertion. Major clinical findings of the female case with p.F69S(c.206T>C) mutation were cornea verticillata, acroparesthesia, angiokeratoma, psychiatric and gastrointestinal symptoms. Other novel mutation (p.P205A [c.613C>G]) was carried by a male case presenting gastrointestinal symptoms. Conclusions We described clinical findings of two cases that had novel mutations to provide more insight in genotype-phenotype correlation. We presented the largest mutation spectrum in Turkish population and reviewed previous mutations in this article.Objectives Rheum ribes L. is a perennial plant that belongs to the family of Polygonaceae, which is often used in traditional therapy because it possesses many bioactivities, such as antioxidant and antibacterial ones. Here we examined the effect of different R. ribes L. extracts on oxidative stress in experimental diabetic rats. Methods Thirty-six rats were divided into six groups as follows group I, control group; group II, diabetic rats; group III, diabetic rats treated with the aqueous extract of R. ribes L. by gavage at 50 mg/kg for 15 days; group IV, diabetic rats treated by gavage with the ethanolic extract of R. ribes L. at 50 mg/kg for 15 days; group V, nondiabetic rats treated by gavage with the aqueous extract of R. ribes L. at 50 mg/kg for 15 days; group VI, nondiabetic rats treated by gavage with the ethanol extract of R. ribes L. at 50 mg/kg for 15 days. After 15 days, the animals were sacrificed and the liver and kidney tissues of each animal were isolated. Superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA) and glutathione peroxidase (GSH-Px) activities in the tissue samples were measured, and histopathologic examination was carried out. Results R. ribes L. was effective in reducing the oxidative stress and increasing the levels of the antioxidant enzymes. Increased levels of MDA and decreased levels of SOD, CAT and GSH-Px were observed in both the liver and kidney tissues in group II. Decreased levels of MDA and increased levels of SOD, CAT and GSH-Px were observed in group III compared with group II. In group IV, decreased levels of MDA and increased levels of SOD, CAT and GSH-Px were observed in comparison with group II. Conclusions Diabetes increases oxidative stress and causes a decrease in antioxidant enzyme levels. Both aqueous and ethanolic extracts of R. ribes L. decrease oxidative stress activity and increase the levels of antioxidant enzymes. The ethanol extract of R. ribes L. has a higher antioxidant effect than the aqueous extract.
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