Identification and expression analysis of NHX gene family in Chinese cabbage / 生物工程学报

Na+/H+ antiporter (NHX) gene subfamily plays an important role in plant response to salt stress. In this study, we identified the NHX gene family members of Chinese cabbage and analyzed the expression patterns of BrNHXs gene in response to abiotic stresses such as high temperature, low temperature, drought and salt stress. The results showed that there were 9 members of the NHX gene family in Chinese cabbage, which were distributed on 6 chromosomes respectively. The number of amino acids was 513-1 154 aa, the relative molecular weight was 56 804.22-127 856.66 kDa, the isoelectric point was 5.35-7.68. Members of BrNHX gene family mainly existed in vacuoles, the gene structure is complete, and the number of exons is 11-22. The secondary structures of the proteins encoded by the NHX gene family in Chinese cabbage had alpha helix, beta turn and random coil, and the alpha helix occurred more frequently. Quantitative real-time PCR (qRT-PCR) analysis showed that the gene family members had different responses to high temperature, low temperature, drought and salt stress, and their expression levels differed significantly in different time periods. BrNHX02 and BrNHX09 had the most significant responses to these four stresses, and their expression levels were significantly up-regulated at 72 h after treatments, which could be used as candidate genes to further verify their functions.

Effectiveness, safety and cost of urinary follicle stimulating hormone in controlled ovarian stimulation in China: multi-center retrospective cohort study of 102 061 in vitro fertilization cycles / 中华妇产科杂志

Objective:To explore the effectiveness, safety and cost between urinary follicle stimulating hormone (uFSH) and recombinant follicle stimulating hormone (rFSH) in controlled ovarian stimulation (COS) in China.Methods:Data were collected from 16 reproductive centers in China covering oocytes collection time from May 1, 2015 to June 30, 2018. Eligible patients were over 18 years old, adopting COS with uFSH (uFSH group) or rFSH (rFSH group) as start gonadotropins (Gn), and using in vitro fertilization (IVF) and (or) intracytoplasmic sperm injection for fertilisation, excluding frozen embryo recovery cycle. Generalised estimating equation was used to address the violation of independency assumption between cycles due to multiple IVF cycles for one person and clustering nature of cycles carried out within one center. Controlling variables included age, body mass index, anti-Müllerian hormone level, cause of infertility, ovulation protocol, type of fertilisation, number of embryos transferred, number of days of Gn use.Results:Totally 102 061 cycles met eligibility criteria and were included in the analyses. In terms of effectiveness, after controlling relevant unbalanced baseline characteristics, compared with rFSH group, the high oocyte retrieval (>15 oocytes was considered high retrieval) rate of uFSH group significantly decreased in gonadotropin-releasing hormone agonist protocol ( OR=0.642, P<0.01) and in gonadotropin-releasing hormone antagonist protocol ( OR=0.556, P=0.001), but the clinical pregnancy rate per transfer cycle and the live birth rate per transfer cycle significantly increased ( OR=1.179, OR=1.169, both P<0.01) in both agonist and antagonist protocols. For safety, multiple analysis result demonstrated that in the agonist protocol, compared with rFSH group, the incidence of moderate to severe ovarian hyperstimulation syndrome of uFSH group significantly decreased ( OR=0.644, P=0.002). The differences in ectopic pregnancy rate and multiple pregnancy rate between the uFSH and rFSH groups were not significant ( P=0.890, P=0.470) in all patients. In terms of cost, compared with rFSH group, the uFSH group had lower total Gn costs for each patient ( P<0.01). Conclusion:For patients who underwent COS, uFSH has better safety, and economic profiles over rFSH in China.

Influence of female age on the fresh cycle live birth rate of different controlled ovarian hyperstimulation protocols in poor ovarian response patients / 中华妇产科杂志

Objective:To investigate the influence of age on the fresh cycle live birth rate in patients with poor ovarian response in different controlled ovarian hyperstimulation groups.Methods:The clinical data of 3 342 patients in The First Affiliated Hospital of Zhengzhou University from February 2014 to November 2018 were retrospectively collected, including early-follicular phase long-acting gonadotropin-releasing hormone (GnRH) agonist long protocol group (1 375 cases), mid-luteal phase short-acting GnRH agonist long protocol group (1 161 cases) and GnRH antagonist protocol group (806 cases); each group was divided into 4 subgroups according to age: ≤30 years, 31－35 years, 36－40 years and >40 years, the pregnancy outcomes in each age subgroup were analyzed under different controlled ovarian hyperstimulation protocols.Results:In early-follicular phase long-acting GnRH agonist long protocol group, the final live birth rates of each age subgroup were 39.4% (228/579), 36.1% (135/374), 16.6% (48/290) and 3.0% (4/132); in mid-luteal phase short-acting GnRH agonist long protocol group, live birth rates of each age subgroup were 32.1% (99/308), 20.8% (55/264), 13.0% (45/346) and 7.0% (17/243); in GnRH antagonist protocol group, live birth rates of each age subgroup were 22.8% (26/114), 16.3% (25/153), 11.2% (31/278), and 3.8% (10/261); the live birth rate of each group decreased significantly with the increase of age (all P<0.01). When the age≤35 years old, the fresh cycle live birth rate of the early-follicular phase long-acting GnRH agonist long protocol group was significantly better than those of the other two groups (all P<0.01). The multivariate logistic regression analysis of age and live birth rate of the three controlled ovarian hyperstimulation groups showed age was the independent influence factor ( OR=0.898, 95% CI: 0.873-0.916, P<0.01; OR=0.926, 95% CI: 0.890-0.996, P<0.01; OR=0.901, 95% CI: 0.863-0.960, P<0.01). Conclusions:Age is an independent influencing factor for the prediction of fresh cycle live birth rate in low ovarian response patients. No matter which controlled ovarian hyperstimulation protocol is adopted, the final live birth rate decreases significantly with the increase of women′s age. In addition, the early-follicular phase long-acting GnRH agonist long protocol has the highest fresh cycle live birth rate among all controlled ovarian hyperstimulation groups.

MicroRNA expression and its role in the cell cycle regulation in decidualized endometrial stromal cells in vitro / 中华妇产科杂志

ObjectiveTo study microRNA (miRNA) expression and role of cell cycle regulation in decidualized endometrial stormal cells (ESC) in vitro.MethodsESC was induced decasualization in vitro and matched with non-decidualized cells as controls.The expression repertoire of miRNA was measured by microarray chip and was validated by real-time PCR.Flow cytometry was used to identify ESC cycle during decidual reaction in vitro and after miRNA222 inhibitor was transfected into it.Results (1) Between decidualized and undecidualized stromal cells,there were 49 miRNAs significantly different expression by microarray chip,including 16 miRNA up-regulation and 33 miRNA down-regulation.hsa-miR-27b,30c,143,101,181 b,29b,30d,507,23 a,222,221 exhibited significantly differential expression between decicualized and undecidualized stromal cells by real-time PCR (P ＜0.05).(2) After miRNA222 inhibitor (NC-FAM) transfection to decidual ESC,ESC were cultured by FBS medium for 24 hours,the rate of transfection was 70％.ESC were transfected with miRNA 222 inhibitor and cultured for 48 hours,the percentage of ESC at Sphase of (6.2 ± 0.7 ) ％ were significantly lower than ( 10.9 ± 0.8 ) ％ in control group ( P ＜ 0.05 ) ; the percentage of ESC at G0/G1 phase increased at transfection group [ (77.5 ± 1.3 ) ％ vs.(73.0 ± 1.6) ％ at control group ],but there was no significant difference (P ＞ 0.05 ).Decasualization ESC were transfected with miRNA 222 inhibitor and cultured for 48 h,the percentage of ESC at S-phase was ( 3.3 ± 0.6) ％ in transfection group,which were significantly lower than (7.8 ± 0.9 ) ％ in control group ( P ＜ 0.05 ).The percentage of ESC at G0/G1 phase was ( 80.7 ± 1.6 ) ％ in transfection group and ( 74.9 ± 1.1 ) ％.In control group,which did not reached statistical difference ( P ＞ 0.05).ConclusionmiRNA was involved in ESC decidual process in vitro by regulating cell cycle.

Local immune regulatory effects of Bangdeyun on the endometrium of mice with embryo implantation dysfunction during the implantation time / 华中科技大学学报（医学）（英德文版）

This study examined the effects of Bangdeyun on the expressions of nuclear factor-kappaB (NF-kappaB), interferon-gamma (IFN-gamma) and interleukin-10 (IL-10) in the endometrium of mice with embryo implantation dysfunction (EID) during the implantation time (namely on pregnancy day 5, 6, 7 and 8) and explored the local immune regulatory effects of Bangdeyun. The gestational mice were randomly divided into normal group, model group and Bangdeyun-treated group. EID models of mice were established by using indomethacin. The endometrial expression of NF-kappaB was detected by immunohistochemistry and Western blotting. IFN-gamma and IL-10 were measured by enzyme-linked immunosorbent assay (ELISA). The results showed that in the normal group, NF-kappaB and IFN-gamma were weakly expressed and IL-10 was strongly expressed in the endometrium during the whole implantation period. In the model group, the expressions of NF-kappaB and IFN-gamma were increased on pregnancy day 5, 6 and 7, and IL-10 expression decreased during the whole implantation time when compared with those in the normal group (P0.05). The expressions of NF-kappaB and IFN-gamma were much lower in the Bangdeyun-treated group than those in the model group on pregnancy day 5, 6 and 7 (P<0.01 for all), while the expression of IL-10 was much higher than in the model group during the whole implantation time (P<0.01). It was suggested Bangderun may favor a shift from Th1- to Th2-type immune response, therefore inhibiting the maternal immune rejection, inducing the immune tolerance and improving the fetal implantation.

Apoptosis and Expression of Protein TRAIL in Granulosa Cells of Rats with Polycystic Ovarian Syndrome / 华中科技大学学报（医学）（英德文版）

The relationship between apoptosis of granulosa cells and follicle development arrest in polycystic ovarian syndrome (PCOS) rats, and the contribution of tumor necrosis factor related apoptosis inducing ligand (TRAIL) in apoptosis of granulosa cells were explored. By using sodium prasterone sulfate rat PCOS model was induced. The apoptosis of granulosa cells in ovaries of rats was observed by TdT-mediated dUTP-biotin nick end-labeling (TUNEL), and the expression of TRAIL protein and mRNA in granulosa cells was detected by using immunhistochemical staining and reverse transcription polymerase chain reaction (RT-PCR) respectively. The apoptotic rate and the expression of protein TRAIL in granulosa cells were significantly higher in antral follicles from the PCOS rats than in those from the control rats (P＜0.01, P＜0.05). There was no significant difference in apoptotic rate and the expression of TRAIL protein in granulosa cells of preantral follicles between the PCOS rats and the control rats (P＞0.05). No apoptosis and the expression of TRAIL protein in granulosa cells of primordial follicles were found in the two groups. The expression of TRAIL mRNA was significantly stronger in granulosa cells from the PCOS rats than in those from the control rats (P＜0.01). It was suggested that the apoptotic rate in granulosa cells was significantly higher in antral follicle from the PCOS rats than in those from the control rats. TRAIL played a role in regulating the apoptosis of granulosa cells in PCOS rats.

Apoptosis and expression of protein TRAIL in granulosa cells of rats with polycystic ovarian syndrome / 华中科技大学学报（医学）（英德文版）

The relationship between apoptosis of granulosa cells and follicle development arrest in polycystic ovarian syndrome (PCOS) rats, and the contribution of tumor necrosis factor related apoptosis inducing ligand (TRAIL) in apoptosis of granulosa cells were explored. By using sodium prasterone sulfate rat PCOS model was induced. The apoptosis of granulosa cells in ovaries of rats was observed by TdT-mediated dUTP-biotin nick end-labeling (TUNEL), and the expression of TRAIL protein and mRNA in granulosa cells was detected by using immunohistochemical staining and reverse transcription polymerase chain reaction (RT-PCR) respectively. The apoptotic rate and the expression of protein TRAIL in granulosa cells were significantly higher in antral follicles from the PCOS rats than in those from the control rats (P0.05). No apoptosis and the expression of TRAIL protein in granulosa cells of primordial follicles were found in the two groups. The expression of TRAIL mRNA was significantly stronger in granulosa cells from the PCOS rats than in those from the control rats (P<0.01). It was suggested that the apoptotic rate in granulosa cells was significantly higher in antral follicle from the PCOS rats than in those from the control rats. TRAIL played a role in regulating the apoptosis of granulosa cells in PCOS rats.

Research on the Relationship Between Self Consistency and Learning Adjustment of Normal University Students / 中国临床心理学杂志

Objective: To explore the relationship between learning adjustment and self consistency of normal university students. Methods: 423 students were tested by means of Self Consistency and Congruence Scale and Undergraduate Learning Adjustment Scale. Results: The whole situation of learning adjustment and self-consistency was quite well. There was significant correlation among most factors of learning adjustment and self consistency. Two elements of self consistency were effective predictive variables of learning adjustment. Conclusion: There is close relationship between self consistency and learning adjustment of normal university students.