Down syndrome (DS) is one of the main genetic abnormalities of newborns. Therefore, prenatal diagnosis of this syndrome is of paramount importance to the family and the community. The microbiota ...system is important in early brain development. We tried to study and compare gut microbiota (GM) composition in pregnancies that resulted in DS neonates with pregnancies that resulted in healthy children. The study population consisted of 21 pregnant women having delivered DS newborns (group 1) and 22 pregnant women who had given birth to healthy newborns (group 2). The GM composition was determined and compared between the two groups. There were no significant age and gestational age differences between the two groups (p>0.005 both). Regarding GM analysis, microorganisms of the families
Clostridiaceae
and
Pasteurellaceae
were more abundant in the group of women having delivered DS neonates than the group of women having delivered healthy newborns (p<0.05). The results of our pilot study showed that the GM system might have a role in the pathophysiology of DS. The GM changes may be used in the prenatal diagnosis and prevention of this syndrome. Further studies are needed in this field.
Purpose
To investigate the role of oxidative stress and antioxidant system in the etiopathogenesis of pseudoexfoliation and progression of pseudoexfoliation syndrome to glaucoma.
Material and method
...A total of 20 patients with pseudoexfoliation syndrome, 20 with pseudoexfoliation glaucoma, 20 with primary open-angle glaucoma, and 20 without pseudoexfoliation and glaucoma as a control group, who underwent cataract or glaucoma surgery between December 2020 and March 2021 in the Health Sciences University Beyoğlu Eye Training and Research Hospital, 80 patients were included in the study. Best corrected visual acuity (BCVA), intraocular pressure with applanation tonometry, detailed anterior and posterior segment examinations with biomicroscopy were performed in all patients included in the study. Approximately 0.1 cc of anterior chamber fluid was taken from all patients at the beginning of surgery. Total Oxidant Status (TOS) and Total Antioxidant Status (TAS) levels were measured by keeping the samples taken in the deep freezer of the cornea bank at −80 degrees, transferring them with cold chain transport rules, and examining them with automatic measurement method in the laboratories of the Medical Biochemistry Department of the University of Health Sciences. Oxidative Stress Index (OSI) value was calculated to measure the degree of oxidative stress.
Results
TAS averages of the control and POAG groups were found to be statistically significantly higher than the PES and PEG groups (p = 0.0001, p = 0.0001). No significant difference was observed between the other groups (p > 0.05). The TOS averages of the control and POAG groups were found to be statistically significantly lower than the PES and PEG groups (p = 0.003, p = 0.0001; p = 0.01, p = 0.001), no statistically significant difference was observed between the other groups (p > 0.05). The OSI mean of the control and POAG groups was found to be statistically significantly lower than the PES and PEG groups (p = 0.001, p = 0.0001; p = 0.002, p = 0.0001), no statistically significant difference was observed between the other groups (p > 0.05).
Conclusion
Increased TOS and OSI and decreased TAS levels in the aqueous humour of patients with PES and PEG suggest that increased oxidative stress and decreased antioxidative defense system play a role in the etiopathogenesis of the disease.
Endometriosis is a common gynecological hurting disorder in which tissue is similar to the tissue that normally lines the inner layer of the uterus. It often causes fertility problems. Unfortunately, ...effective treatments are limited. Therefore it's important to explore an imperative and easily accessible treatment to alleviate the probable pathologies and preserve fertility in endometriosis. Consequently, we aimed to investigate the effects of metformin, letrozole, and atorvastatin on inflammation and apoptosis in experimentally induced ovarian and peritoneal endometriosis in rat models. In the present study, 35 rats were randomly divided into five groups. Group 1: sham-operated control group. Group 2: untreated endometriosis group. Group 3: given 100 mg/kg/day of oral metformin. Group 4: given 0.1 mg/kg/day of oral letrozole. Group 5: given 2.5 mg/kg/day of oral atorvastatin. At the end of the 28 days, we examined Ki67, Bax and Bcl-2 immunoexpressions in ovarian and peritoneal tissues, and IL-6, IL-8, and TNF-α levels were evaluated from the peritoneal fluid. All medical treatment groups showed a significant decrease in Ki67 expression. A significant increase in Bax expression was also observed in all samples from all medical treatment groups (other than the untreated endometriosis groups). Further, a significant decrease in Bcl-2 expression was found in all medical treatment groups. IL-6, IL-8, and TNF-α levels were significantly lower in all medical treatment groups than in the endometriosis groups. In conclusion; Metformin, letrozole, and atorvastatin showed apoptosis induction and anti-inflammatory effects on both ovarian and peritoneal endometriosis in experimental models.
Down syndrome (DS) is one of the main genetic abnormalities of newborns. Therefore, prenatal diagnosis of this syndrome is of paramount importance to the family and the community. The microbiota ...system is important in early brain development. We tried to study and compare gut microbiota (GM) composition in pregnancies that resulted in DS neonates with pregnancies that resulted in healthy children. The study population consisted of 21 pregnant women having delivered DS newborns (group 1) and 22 pregnant women who had given birth to healthy newborns (group 2). The GM composition was determined and compared between the two groups. There were no significant age and gestational age differences between the two groups (p>0.005 both). Regarding GM analysis, microorganisms of the families Clostridiaceae and Pasteurellaceae were more abundant in the group of women having delivered DS neonates than the group of women having delivered healthy newborns (p<0.05). The results of our pilot study showed that the GM system might have a role in the pathophysiology of DS. The GM changes may be used in the prenatal diagnosis and prevention of this syndrome. Further studies are needed in this field. Key words: Brain; Down syndrome; Microbiota; Pregnancy; Outcome; Screening Downov sindrom (DS) je jedna od glavnih genetskih nenormalnosti kod novorodencadi, stoga je prenatalna dijagnostika ovoga sindroma od velike vaznosti za obitelj, kao i za drustvo. Sustav mikrobiote ima vaznu ulogu u ranom razvoju mozga. U ovom istrazivanju ispitali smo i usporedili sastav crijevne mikrobiote (CM) u trudnocama iz kojih su rodena djeca s DS i u trudnocama iz kojih su rodena zdrava djeca. Istrazivana populacija obuhvatila je 21 trudnicu koje su rodile djecu s DS (1. skupina) i 22 trudnice koje su rodile zdravu djecu (2. skupina). Sastav CM utvrden je i usporeden medu dvjema skupinama. Nije bilo razlike u dobi i gestacijskoj dobi izmedu skupina (p>0,005 oboje). Analiza CM je pokazala da su mikroorganizmi iz porodica Clostridiaceae i Pasteurellaceae zastupljenije u skupini zena koje su rodile djecu s DS u usporedbi sa skupinom zena koje su rodile zdravu djecu (p<0,05). Rezultati naseg probnog ispitivanja pokazuju da bi sustav CM mogao imati ulogu u patofziologiji DS. Promjene u CM mogle bi se rabiti u prenatalnoj dijagnostici i prevenciji ovoga sindroma. Potrebna su daljnja istrazivanja u ovom podrucju. Kljucne rijeci: Mozak; Downov sindrom; Mikrobiota; Trudnoca; Ishod; Probir
Downov sindrom (DS) je jedna od glavnih genetskih nenormalnosti kod novorođenčadi, stoga je prenatalna dijagnostika
ovoga sindroma od velike važnosti za obitelj, kao i za društvo. Sustav mikrobiote ...ima važnu ulogu u ranom razvoju mozga. U
ovom istraživanju ispitali smo i usporedili sastav crijevne mikrobiote (CM) u trudnoćama iz kojih su rođena djeca s DS i u
trudnoćama iz kojih su rođena zdrava djeca. Istraživana populacija obuhvatila je 21 trudnicu koje su rodile djecu s DS (1.
skupina) i 22 trudnice koje su rodile zdravu djecu (2. skupina). Sastav CM utvrđen je i uspoređen među dvjema skupinama.
Nije bilo razlike u dobi i gestacijskoj dobi između skupina (p>0,005 oboje). Analiza CM je pokazala da su mikroorganizmi
iz porodica Clostridiaceae i Pasteurellaceae zastupljenije u skupini žena koje su rodile djecu s DS u usporedbi sa skupinom žena
koje su rodile zdravu djecu (p<0,05). Rezultati našeg probnog ispitivanja pokazuju da bi sustav CM mogao imati ulogu u
patofiziologiji DS. Promjene u CM mogle bi se rabiti u prenatalnoj dijagnostici i prevenciji ovoga sindroma. Potrebna su
daljnja istraživanja u ovom području.
