1.Effect of 1-(2,6-dimethylphenoxy)-2-(3,4-dimethoxyphenylethyl-amino) propanehydrochloride on cystometry and benign prostatic hyperplasia in rats
Heng ZHENG ; Jiaqing QIAN ; Chunli SHAO ; Lin XIA ; Peizhou NI
Chinese Journal of Pharmacology and Toxicology 2001;15(2):150-154
1-(2,6-Dimethylphenoxy)-2-(3,4-dimethoxyphenylethylamino) propane hydrochloride(DDPH) caused parallel rightward shifts of the phenylephrine(Phe) concentration-contractile response curves and did not suppress the maximal contractile response to Phe (pA2=7.24) in isolated rabbit urinary bladder smooth muscle. DDPH decreased the parameters of cystometry in urethane-anesthetized rats. Thirty minutes after DDPH (25 and 50 mg*kg-1 ig) administration, bladder capacity, voiding pressure, voiding threshold pressure were significantly decreased. With the observation of light-microscope and electron-microscope technique, DDPH (25 and 50 mg*kg-1*d-1 ig for 4 weeks) also inhibited the development of testosterone propionate-induced benign prostatic hyperplasia in rats. The results indicate that DDPH may inhibit benign prostatic hyperplasia and improve the urinary flow.
2.Effects ofShipi-Gushen-HuayuRecipe on the expressions of collagen I, laminin, transforming growth factor-β1 andα-smooth muscle actin in adriamycin-induced renal fibrosis in rats
Gaoqiang WANG ; Liping SHEN ; Wei ZHANG ; Jun LI ; Jiaqing NI ; Xiuhua MI
International Journal of Traditional Chinese Medicine 2014;(11):1009-1012
Objective To investigate the effects ofShipi-Gushen-Huayu Recipe on the expressions of collagen I, laminin(LN), transforming growth factor-β1(TGF-β1)andα-smooth muscle actin(α-SMA)in adriamycin-induced renal fibrosis in rats.Methods A total of male SD rats were randomly divided into four groups, with 10 rats in each group: a normal group, a model group, a treatment group and a fosinopril sodium group. Except the rats in the normal group, the rest rats were subjected to renal fibrosisvia tail intravenous injection of adriamycin(4 mg/kg). Two weeks after modeling, the rats in the rreatment group and in the fosinopril sodium group were intragastrically administrated daily withShipi-Gushen-Huayu Recipe extract(43 g/kg)and fosinopril solution(2 mg/kg), respectively,both in the normal group and model group with saline. After 30 days, 24-hours urine protein were determined, and the expressions of collagen I, LN, TGF-β1 andα-SMA in kidney tissue were detected with immunohistochemistry staining.Results The expressions of collagen I(24.64±0.67vs. 32.86±0.88), LN(18.71±0.72vs. 28.35±0.87), TGF-β1(14.71±0.68vs. 18.35±0.96)andα-SMA(17.64±0.74vs. 25.86±0.85)in the treatment group were significantly lower than those in the model group(allP<0.01). The expressions of collagen I, LN, TGF-β1 andα-SMA in the fosinopril sodium group were 27.33±0.73, 20.44±0.81, 15.44±0.85 and 19.33±0.77, respectively. There was no statistically significant difference between the expressions of collagen I, LN, TGF-β1 andα-SMA in the treatment group and in the fosinopril sodium group.ConclusionShipi-Gushen-Huayu Recipe can significantly down regulate the expressions of collagen I, LN, TGF-β1 andα-SMA in adriamycin-induced renal fibrosis in rats.
3.Advancements in the role of iris parameters in implantable collamer lens implantation
Huihui JIN ; Jiaqing HUANG ; Xian WU ; Yingjie NI ; Chaoyang HONG ; Peijin QIU ; Ting SHEN
International Eye Science 2025;25(7):1037-1045
Phakic intraocular lens implantation has become one of the important means of correcting refractive errors today. Among them,the implantable collamer lens(ICL)is favored for its wide range of correction, excellent optical quality, and high safety, but the risks of postoperative complications such as glaucoma and anterior subcapsular opacification still exist. Vault is an important indicator for evaluating the safety after ICL implantation, and its ideal state is crucial for preventing complications. Studies have shown that iris morphology has a significant impact on vault. In order to further optimize surgical outcomes and improve surgical safety, this review comprehensively reviews the research progress of iris-related parameters in ICL implantation and discusses the importance of various parameters in preoperative evaluation and postoperative follow-up.