1.Regulatory of Jiaweisinisan on expression of hippocampal BDNF, NR1 and dental gyrus neurogenesis in rats with chronic stressed-depression
Can YAN ; Yinwei LIU ; Lili WU ; Penghui ZHU ; Yi PAN
Chinese Pharmacological Bulletin 2016;32(4):569-574
Aim To study the regulatory of Jiaweisini-san on expression of hippocampal BDNF, NR1 and dental gyrus ( DG ) neurogenesis in rats with chronic stressed-depression and its possible mechamisms. Methods Chronic unpredictable mild stress was used to establish the rat model of stressed depression. The expression of BrdU, NeuN, brain -derived neurotro-phic factor ( BDNF ) and N-methyl-D-aspartate recep-tor1 ( NR1 ) in hippocampal dental gyrus were detected by fluorescently labeled immunohistochemical method. In addition, BDNFmRNA was detected by in situ hy-bridization. Results Chronic stress could inhibit the proliferation of neural precursors in hippocampal DG ( P<0. 01 );the expression of BDNF decreased signifi-cantly in DG in model rats ( P <0. 01 ) , while the ex-pression of NR1 increased significantly ( P <0. 01 ) . JWSNS and Fluoxetine hydrochloride significantly en-hanced the amount of new proliferating cells and the number of neurons in unit area of DG ( P<0. 01 ) , in-creased the expression of BDNF ( P <0. 01 ) and de-creased the expression of NR1 in DG(P<0. 01). Con-clusion JWSNS could promote the neuronal prolifera-tion in hippocampal DG of rat with chronic stressed-de-pression,and may exert an effect of promoting the pro-liferation of neurons in hippocampal DG by enhancing the expression of BDNF and decreasing the expression of NR1 .
2.Trend in incidence of stroke in Nanshan District from 2010 to 2021
Yinwei CHEN ; Yang ZHOU ; Zhen LIU ; Xiaohui ZHANG
Journal of Preventive Medicine 2023;35(3):210-214
Objective:
To establish a comprehensive health evaluation index system for HIV-infected pregnant women in floating populations, so as to support the elimination of mother-to-child transmission of HIV.
Methods:
The preliminary framework of the comprehensive health evaluation indicators was constructed based on literature review and focus group discussion. Experts from maternal and child healthcare, clinical medicine and public health were invited to participate in two-round Delphi consultations. The indicators were scored and weighed according to the importance, priority and measurability, and determined according to means and coefficients of variation of scores. The effectiveness of the consultation was evaluated by positive coefficient, authority coefficient and coordination coefficient.
Results:
Twenty-six experts participated in this study, including 19 women. There were 5 experts aged 30-40 years, 14 experts aged 41-50 years, and 7 experts aged 51 years and over. There were 17 experts with a master degree and above. All experts had vice senior professional titles and above. The positive coefficients in the two rounds of consultations were 96.30% and 100.00%, the authority coefficients were 0.84 and 0.89, respectively. Finally, 4 primary indicators (individuals and families, disease factors, social environment, health service utilization) and 50 secondary indicators were identified, with the coefficients of variation ranging from 0.084 to 0.236 and the coordination coefficients ranging from 0.282 to 0.405 (all P<0.001). Among the secondary indicators, getting antiviral drugs at the place of residence was restricted to floating populations or not (0.780), HIV viral load during pregnancy (0.750), the registration of maternal and childbirth care manuals at the place of residence was restricted to floating populations or not (0.749), and first-trimester registration or not (0.738) had a high weight.
Conclusion
This index system can provide the reference for evaluating the health equity of HIV-infected pregnant and lying-in women in floating populations.
3.Relaxin-2 Prevents Erectile Dysfunction by Cavernous Nerve, Endothelial and Histopathological Protection Effects in Rats with Bilateral Cavernous Nerve Injury
Kang LIU ; Taotao SUN ; Wenchao XU ; Jingyu SONG ; Yinwei CHEN ; Yajun RUAN ; Hao LI ; Kai CUI ; Yan ZHANG ; Yuhong FENG ; Jiancheng PAN ; Enli LIANG ; Zhongcheng XIN ; Tao WANG ; Shaogang WANG ; Jihong LIU ; Yang LUAN
The World Journal of Men's Health 2023;41(2):434-445
Purpose:
Cavernous nerve injury induced erectile dysfunction (ED) is a refractory complication with high incidence in person under radical prostatectomy. Studies have shown that relaxin-2 (RLX-2) plays a vital role of endothelial protection, vasodilation, anti-fibrosis and neuroprotection in a variety of diseases. However, whether penile cavernous erection can benefit from RLX-2 remains unknown. The purpose of the experiment was to explore the effects of RLX-2 on ED in the rat suffering with bilateral cavernous nerve injury (BCNI).
Materials and Methods:
The rats were divided into three groups: Sham group was underwent sham operation, BCNI+RLX group or BCNI group was underwent bilateral cavernous nerve crush and then randomly treated with RLX-2 (0.4 mg/kg/d) or saline by continuous administration using a subcutaneously implanted micro pump for 4 weeks respectively. Then, erectile function was evaluated by electrical stimulation of cavernous nerves. Cavernous nerves and penile tissues and were collected for histological evaluation.
Results:
Erectile function of rats with BCNI was partially improved after RLX-2 treatment. The BCNI group had lower expression of relaxin family peptide receptor (RXFP) 1, p-AKT/AKT, p-eNOS/eNOS ratios than sham operation rats, but RLX-2 could partially reversed these changes. Histologically, the BCNI+RLX group had a significant effect on preservation of neurofilament, neuronal glial antigen 2 of penile tissue and nNOS of cavernous nerves when compared with BCNI group. RLX-2 could inhibited the lever of BCNI induced corporal fibrosis and apoptosis via regulating TGFβ1-Smad2/3-CTGF pathway and the expression of Bax/Bcl-2 ratio, caspase3.
Conclusions
RLX-2 could improve erectile function of BCNI rats by protecting cavernous nerve and endothelial function and suppressing corporal fibrosis and apoptosis via RXFP1 and AKT/eNOS pathway. Our findings may provide a promising treatment for refractory BCNI induced ED.