1.Lianpo Yin Ameliorates Bile Reflux Gastritis in Rats by Regulating TLR4/NF-κB Signaling Pathway
Yuqing XIE ; Yutian CUI ; Junna ZHANG ; Chunjiang CAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(22):22-30
ObjectiveTo investigate the ameliorative effect of Lianpo Yin on gastric mucosal injury in the rat model of bile reflux gastritis (BRG) and decipher the underlying mechanism based on the Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway. MethodsThirty-six SPF-grade male Sprague-Dawley (SD) rats were randomized into blank, model, hydrotalcite (positive control drug, 0.20 g·kg-1), NF-κB inhibitor (BAY11-7082, 5.00 mg·kg-1), low-dose Lianpo Yin (LPY-L, 9.77 g·kg-1), and high-dose Lianpo Yin (LPY-H, 19.54 g·kg-1) groups (n=6). Except that the blank group was administrated with distilled water by gavage, the rats in the other groups were induced for the modeling of BRG by gavage with reflux fluid for 35 consecutive days. From the 2nd week of modeling, each treatment group was administrated with the corresponding drugs by gavage 6 h after the end of daily reflux fluid gavage. The BAY11-7082 group received intraperitoneal injection. Meanwhile, the blank group and model group received an equal volume of distilled water by gavage. All interventions were performed for 28 consecutive days. During the experiment period, the general status of rats was observed and body mass changes were recorded, and the stomach index was calculated after the last administration. The histopathological changes of the gastric mucosa were observed under the light microscope after hematoxylin-eosin (HE) staining. The serum levels of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) were quantified by enzyme-linked immunosorbent assay (ELISA). The protein levels of TLR4, NF-κB p65, phosphorylated NF-κB p65 (p-NF-κB p65) and IL-6 in the gastric mucosal tissue were determined by Western blot. The nuclear translocation of NF-κB p65 was observed by immunofluorescence (IF) staining. ResultsCompared with the blank group, the model group showed mental depression, retarded body weight gain (P<0.05, P<0.01), an increased stomach index (P<0.01), severely damaged gastric mucosal structure with massive inflammatory cell infiltration and intestinal metaplasia (P<0.01), elevated serum levels of TNF-α and IL-6 (P<0.01), up-regulated protein levels of TLR4, p-NF-κB p65/NF-κB p65, and IL-6 in the gastric tissue (P<0.01), and evident nuclear translocation of NF-κB p65 (P<0.01). Compared with the model group, all drug intervention groups showed improved general status of rats. The body mass of rats in the hydrotalcite group, LPY-L, and LPY-H groups increased (P<0.05), while the average body mass of rats in the BAY11-7082 group was slightly higher than that in the model group at each time point. All drug intervention groups showed decreased stomach index (P<0.05, P<0.01), alleviated pathological damage of gastric mucosa with reduced inflammatory cell infiltration (P<0.05, P<0.01), and declined serum levels of TNF-α and IL-6 (P<0.01). Hydrotalcite and LPY-L reduced the levels of TLR4 and IL-6 (P<0.05), but had no significant effect on p-NF-κB p65. LPY-H down-regulated the protein levels of TLR4, p-NF-κB p65/NF-κB p65, and IL-6 and inhibited the nuclear translocation of NF-κB p65 (P<0.01), with its effect equivalent to that of BAY11-7082 and superior to that of hydrotalcite and LPY-L. ConclusionLianpo Yin can effectively ameliorate gastric mucosal inflammatory injury in BRG rats by inhibiting the activation of the TLR4/NF-κB signaling pathway, reducing the release of downstream pro-inflammatory cytokines, and suppressing the nuclear translocation of NF-κB p65.
2.Clinicopathological features and prognosis of immunoglobulin A nephropathy after renal transplantation
Tianjing ZHANG ; Pingfan LU ; Yuanjun DENG ; Yang CAI ; Lele LIU ; Chunjiang ZHANG ; Yiyan GUO ; Qian LI ; Na ZHU ; Beichen TIAN ; Min HAN
Chinese Journal of Organ Transplantation 2020;41(2):84-88
Objective:To summarize the relationship between the clinicopathological features and prognosis of immunoglobulin A nephropathy (IgAN) after renal transplantation.Methods:A total of 34 patients with IgAN after renal transplantation confirmed by renal biopsy were enrolled. And another 34 patients with primary IgAN confirmed by initial renal biopsy were adopted as controls. Clinical and pathological features of two groups were compared to explore the relationship between clinicopathological features and prognosis of allograft IgAN.Results:As compared with primary IgAN group, renal function in allograft IgAN group included serum creatinine [(158.5±75.9) vs (84.8±26.8) umol/L], urea nitrogen [(9.7±6.1) vs (5.2±1.4) mmol/L], uric acid [(406.7±87.8) vs (359.0±92.6) umol/L], estimated glomerular filtration rate {(57.4±25.4) vs (91.2±28.6) [ml/(min·1.73m 2)]}. All were statistically significantly higher ( P<0.05) while other parameters showed no differences. Pathologically, the proportion of T1 type (50.0% vs 17.6%) of renal tubular atrophy/interstitial fibrosis was significantly higher in allograft IgAN group than control group ( P<0.05). Furthermore, univariate and multivariate Logistic regression analyses were performed between various pathological parameters and prognosis in allograft IgAN patients. It indicated that the degree of mesangial hyperplasia of patients with transplanted IgAN had a significantly negative impact on the prognosis. Conclusions:The clinicopathological features of patients with allograft IgAN show no difference from those of patients with primary IgAN. And among patients with allograft IgAN, those with severe mesangial hyperplasia often have a worse prognosis.
3.Exploration on the Talent Training Mode of Medical Direction of Chain Management Major in Higher Vo-cational College
Jiangxia YU ; Chunjiang CAI ; Wuxiang HE ; Qiangao CHEN
China Pharmacy 2017;28(9):1281-1284
OBJECTIVE:To provide reference for improving the quality of talent training for medical direction of chain man-agement major in higher vocational college. METHODS:The situation of pharmaceutical retail chain industry market was analyzed in China;the problems of talent training mode were summarized to put forward reform plan and measures according to disadvantag-es. RESULTS:Based on the market situation as continues expansion of pharmaceutical retail chain industry market scale,shortage of professional talent pool,the formulation of new retail mode in China,and training mode situation as not enough in-depth cooper-ation between college and enterprise,poor practicality and pertinence of course setting,irrational teachers'structure,teaching re-form could be conducted on the basis of modern apprenticeship system in following aspects,such as college and enterprise shared the responsibility of training and cultivating,student admission is recruitment;college and enterprise designed curriculum system and assessed students together;double tutorteam of college teacher and enterprise teacher was constructed. CONCLUSIONS:The talent training mode based on modern apprenticeship system is the entry point for teaching reform of medical direction of chain management major in higher vocational college,which is conducive to cultivate high quality pharmaceutical management talents meeting industry needs and social development.
4.Effects of prevention and treatment on atrophic gastritis in rats with Zengshengxiao Capsules
Lin PEI ; Diangui LI ; Chunjiang CAI ; Guojie HU ; Zhenbin LI
Chinese Traditional Patent Medicine 1992;0(07):-
Objective:To study the protective and therapeutic effects of Zengshengxiao Capsules (ZSX) on atrophic gastritis in rats. Methods: The model was established by methods of active immunity and gastrogavage with bile and hot water. The method of acetic acid writhing was used. Results: (ZSX) had actions of promoting the blood flow of gastric mucosa, increasing in pH, inhibiting inflammatory cell infiltration, glandular atrophia and atypical hyperplasia. It also had action of alleviating pain. There were no toxic and side effects. Conclusion: (ZSX) had remarkably preventive and therapeutic effects on atrophic gastritis of rats.

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