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OBJECTIVE@#To study the expression level of cAMP response element-binding protein (CREB) in children with recurrent wheezing under three years of age and its effect on the expression of the serum orosomucoid 1-like protein 3 (ORMDL3) gene.@*METHODS@#Thirty-six children with recurrent wheezing under three years of age who visited the hospital from June 2017 to June 2019 were selected as the recurrent wheezing group. Twenty-four healthy children from physical examination were selected as the control group. The CREB expression level in peripheral blood was measured by quantitative real-time PCR. Human bronchial epithelial cells (BEAS-2B) were cultured, and dual-luciferase reporter assay and quantitative real-time PCR were used to investigate the effects of overexpression and siRNA interference of CREB on the promoter activity and mRNA expression of the ORMDL3 gene in the BEAS-2B cells.@*RESULTS@#The expression level of CREB in the recurrent wheezing group was significantly higher than that in the control group (P<0.001). In BEAS-2B cells, overexpression of CREB significantly up-regulated the promoter activity and mRNA expression of the ORMDL3 gene (P<0.05), while siRNA interference of CREB significantly reduced the promoter activity and mRNA expression of the ORMDL3 gene (P<0.05).@*CONCLUSIONS@#The expression of CREB is increased in children with recurrent wheezing, and CREB may be involved in the pathogenesis of recurrent wheezing by regulating expression of the ORMDL3 gene.
Subject(s)
Child, Preschool , Humans , Cyclic AMP Response Element-Binding Protein , Epithelial Cells , Membrane Proteins , Genetics , Promoter Regions, Genetic , Respiratory SoundsABSTRACT
OBJECTIVE: To explore the effect of domestic recombinant follicle stimulating hormone(rFSH)in the course of controlled ovarian hyperstimulation using long protocol in patients with different ovarian reserve functions.METHODS: A retrospective cohort study was made on 1284 patients who were treated with in vitro fertilization/intracytoplasmic sperm injection-embryo transfer with standard long protocol for ovulation induction from January 2016 to January 2018 in Reproductive Medicine Center,Yuhuangding Hospital of Yantai. According to their AMH level,they were divided into normal ovarian reserve group(AMH:1.2-4.5μg/L,678 patients)and high response group(AMH>4.5μg/L,606 patients).Each group was divided into domestic rFSH subgroup(Jinsaiheng)(340 patients in normal ovarian reserve group,330 patients in high response group)and imported rFSH subgroup(338 patients in normal ovarian reserve group,276 patients in high response group)according to the different use of gonadotrophin on the start-up day.The clinical and laboratory indexes of the two subgroups were compared under different ovarian reserve functions.RESULTS: Regardless of normal or high ovarian reserve function,there was no significant difference in Gn dosage[(1983.15±510.00)U vs.(1913.32±422.12)U,P=0.053;(1816.86±506.37)U vs.(1786.63±453.90)U,P=0.44],days of Gn[(8.96±1.33)days vs.(8.87±1.24)days,P=0.36;(9.45±1.51)days vs.(9.44±1.47)days,P=0.91],dosage of Hermetic[(144.20±67.39)U vs.(143.42±56.73)U,P=0.86;(149.52±62.38)U vs.(160.21±84.87)U,P=0.09],number of eggs obtained(8.14±3.57 vs.8.44±3.37,P=0.25;11.47±4.74 vs.11.66±4.49,P=0.62),MⅡoocyte rate(82.08% vs. 82.01%,P=0.96;82.78% vs. 82.94%,P=0.90),fertilization rate(82.17% vs. 80.98%,P=0.30;80.75% vs. 82.16%,P=0.33),cleavage rate(94.55% vs. 93.91%,P=0.52;94.12% vs. 94.84%,P=0.49),blastocyst formation rate(58.43% vs. 59.55%,P=0.69;61.14% vs. 63.09%,P=0.46),clinical pregnancy rate(59.49% vs. 56.54%,P=0.54;62.84% vs.58.70%,P=0.57),early abortion rate(7.36% vs. 6.80%,P=0.42;11.30% vs. 11.11%,P=0.93)or the incidence of moderate to severe ovarian hyperstimulation syndrome(OHSS)(3.53% vs. 4.73%,P=0.71;7.58% vs. 9.06%,P=0.53)between the two subgroups.However,the daily LH level of HCG in domestic rFSH group was significantly higher than that in imported rFSH group[(2.83±1.31)U/L vs.(2.49±1.14)U/L,P=0.007;(2.35±1.10)U/L vs.(2.11±0.94)U/L,P=0.005].In the normal ovarian reserve group,the daily E2 concentration of HCG and the number of follicles above 1.6 cm in the domestic rFSH group were lower,but the rate of good quality embryos was significantly higher(67.23% vs. 62.51%,P=0.038),the difference being statistically significant(P=0.038).CONCLUSION: Domestic rFSH has the same clinical pregnancy outcome as imported rFSH after ovulation induction,but domestic rFSH has higher LH concentration on hCG day after ovulation induction,and patients with normal ovarian reserve have higher good quality embyro rate after using domestic rFSH.
ABSTRACT
AIM@#The potential of Trifolium pratense (red clover) extract in the prevention of lipid disorder has attracted increasing attention in recent years. In this study, the aim was to determine whether and how red clover extract affected the development of murine diet-induced non-alcoholic steatohepatitis.@*METHODS@#Non-alcoholic steatohepatitis was induced in C57BL/6 mice by feeding mice with a methionine-choline-deficient (MCD) diet. Hematoxylin and eosin staining was used for histological analyses. Real-time PCR was used to analyze the mRNA expression levels.@*RESULTS@#Hepatic steatosis and necroinflammation was observed in MCD diet-fed mice, and this diet-induced steatosis was significantly attenuated, whereas liver inflammation was not significantly attenuated, by red clover extract treatment. Consistent with the results of H&E staining, the MCD diet-induced increase of liver triglycerides and cholesterol levels were significantly reduced by red clover extract treatment. However, with the improvement in hepatic steatosis, mRNA levels of acetyl CoA oxidase, carnitine palmitoyl transferase-1, and liver fatty acid-binding protein, three genes regulated by peroxisome proliferator-activated receptor (PPAR) α, were unaffected.@*CONCLUSION@#Red clover extract alleviated MCD diet-induced hepatic steatosis, but did not ameliorate liver inflammation in C57BL/6 mice, and the improvement in hepatic steatosis was not through activating PPARα.