1.The effect of rutaecarpine on improving fatty liver and osteoporosis in MAFLD mice
Yu-hao ZHANG ; Yi-ning LI ; Xin-hai JIANG ; Wei-zhi WANG ; Shun-wang LI ; Ren SHENG ; Li-juan LEI ; Yu-yan ZHANG ; Jing-rui WANG ; Xin-wei WEI ; Yan-ni XU ; Yan LIN ; Lin TANG ; Shu-yi SI
Acta Pharmaceutica Sinica 2025;60(1):141-149
Metabolic-associated fatty liver disease (MAFLD) and osteoporosis (OP) are two very common metabolic diseases. A growing body of experimental evidence supports a pathophysiological link between MAFLD and OP. MAFLD is often associated with the development of OP. Rutaecarpine (RUT) is one of the main active components of Chinese medicine Euodiae Fructus. Our previous studies have demonstrated that RUT has lipid-lowering, anti-inflammatory and anti-atherosclerotic effects, and can improve the OP of rats. However, whether RUT can improve both fatty liver and OP symptoms of MAFLD mice at the same time remains to be investigated. In this study, we used C57BL/6 mice fed a high-fat diet (HFD) for 4 months to construct a MAFLD model, and gave the mice a low dose (5 mg·kg-1) and a high dose (15 mg·kg-1) of RUT by gavage for 4 weeks. The effects of RUT on liver steatosis and bone metabolism were then evaluated at the end of the experiment [this experiment was approved by the Experimental Animal Ethics Committee of Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences (approval number: IMB-20190124D303)]. The results showed that RUT treatment significantly reduced hepatic steatosis and lipid accumulation, and significantly reduced bone loss and promoted bone formation. In summary, this study shows that RUT has an effect of improving fatty liver and OP in MAFLD mice.
2.Association between intestinal barrier disruption in liver failure and the cGAS-STING signaling pathway
Qiao TANG ; Chao ZHOU ; Ning ZHANG ; Man GONG
Journal of Clinical Hepatology 2025;41(3):574-579
Liver failure is a common severe syndrome of liver diseases with high mortality. The function and structural integrity of the intestinal barrier as an entity are closely associated with the development and progression of liver failure. The cGAS-STING signaling pathway can participate in innate immune response by recognizing DNA produced by pathogen invasion and host cell damage and inducing the production of type I interferon. Numerous studies have shown that activation of the cGAS-STING pathway can significantly impact the cellular structure, mucosal components, and commensal bacteria of the intestinal barrier. This article reviews the interplay between the cGAS-STING signaling pathway and intestinal barrier disruption in liver failure, in order to provide novel insights for the clinical management of liver failure.
3.A Case Report of Hypothyrotropin Hypothyroidism Caused by Roxadustat
Xuelian YAN ; Bingying TANG ; Xuan QU ; Ning ZHANG ; Lin KANG
Medical Journal of Peking Union Medical College Hospital 2025;16(2):519-522
Roxadustat is the world's first small molecule hypoxia-inducible factor prolyl hydroxylase inhibitor. Its adverse effect of causing hypothyroidism with low thyroid-stimulating hormone (TSH) is relatively rare and manifests subtly in elderly patients with multiple coexisting diseases. This article reports a case of an elderly patient with renal anemia who developed reversible low-TSH hypothyroidism after taking roxadustat for 12 days, with a significant decrease in thyroid hormone levels. After discontinuing roxadustat for 15 days, the thyroid hormone levels gradually returned to normal. Due to the worsening of renal anemia, the patient took roxadustat again, and 9 days later, the thyroid function-related indicators decreased upon re-examination, leading to the initiation of levothyroxine replacement therapy. In conjunction with relevant literature, this article analyzes the adverse reactions that occur during the oral administration of roxadustat in elderly patients with chronic kidney disease, aiming to provide reference for drug treatment of such patients.
4.A Study on the In Vitro Antibacterial Effects of Colistin or Tigecycline Combined with Three Antimicrobial Agents Against Carbapenem-resistant Acinetobacter Baumannii
Weichen HUANG ; Kuo LI ; Lijing GUO ; Xinyi JIN ; Chaogui TANG ; Ning LIN ; Jingjing HUANG
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1131-1137
To analyze the Non-duplicate CRAB strains isolated from clinical specimens between June and December 2023 at Huai'an First People's Hospital Affiliated to Nanjing Medical University were retrospectively collected. The minimum inhibitory concentrations of commonly used antimicrobial agents against these strains were determined using the broth microdilution method. A total of 48 CRAB strains were included. COL-based combination regimens all exhibited favorable synergistic or additive effects against CRAB. Among them, the COL+IPM group showed the highest synergistic rate (83.3%), while the COL+AMK and COL+CSL groups primarily demonstrated additive effects (additive rates of 66.7% and 70.8%, respectively). TGC-based combination regimens mainly exhibited additive or indifferent effects, with the TGC+CSL group showing the highest additive rate (75.0%) and the TGC+AMK group showing the highest indifferent rate (70.8%). No antagonistic effects were observed in any of the six combination regimens. Further analysis revealed that the antibacterial effect of the COL+IPM group against CRAB was significantly different from that of the other combination regimens ( The combination of COL and IPM demonstrates the optimal synergistic antibacterial effect against CRAB, with the highest synergistic rate, and can be used as an empirical combination regimen for the clinical treatment of CRAB infections.
5.Protective effect of Qingjie Huagong decoction on pancreatic tissue of mice with severe acute pancreatitis by regulating the NOD-like receptor protein 3/Toll-like receptor 4/nuclear factor-kappa B signaling pathway
Minchao FENG ; Baijun QIN ; Fang LUO ; Kai LI ; Ning WANG ; Guozhong CHEN ; Xiping TANG
Journal of Clinical Hepatology 2024;40(2):343-350
ObjectiveTo investigate the therapeutic effect of Qingjie Huagong decoction (QJHGD) on a mouse model of severe acute pancreatitis (SAP) and the mechanism of action of QJHGD against inflammatory response. MethodsA total of 36 male C57BL/6J mice were randomly divided into blank group, model group, Western medicine group (ulinastatin), and low-, middle-, and high-dose QJHGD groups, with 6 mice in each group. All mice except those in the blank group were given 5% sodium taurocholate by retrograde pancreaticobiliary injection to establish a model of SAP. After modeling, the mice in the low-, middle-, and high-dose groups were given QJHGD (1, 2, and 4 g/kg, respectively) by gavage, and those in the Western medicine group were given intraperitoneal injection of ulinastatin (5×104 U/kg), for 7 days in total. HE staining was used to observe the histopathological changes of the pancreas; ELISA was used to measure the levels of α-amylase, lipase, interleukin-1β (IL-1β), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-18 (IL-18), and tumor necrosis factor-α (TNF-α) in mice; RT-qPCR was used to measure the mRNA expression levels of NOD-like receptor protein3 (NLRP3), Toll-like receptor 4 (TLR4), and nuclear factor-kappa B (NF-κB) in pancreatic tissue; immunohistochemistry was used to measure the positive expression rates of NLRP3, TLR4, and NF-κB in pancreatic tissue; Western blot was used to measure the protein expression levels of NLRP3, TLR4, NF-κB, IL-1β, and IL-6. An analysis of variance was used for comparison of continuous data between multiple groups, and the least significant difference t-test was used for further comparison between two groups. ResultsCompared with the blank group, the model group had diffuse destruction of pancreatic tissue structure, focal dilatation of pancreatic lobular septum, pancreatic acinar atrophy, and massive inflammatory cell infiltration, as well as significant increases in the content of α-amylase, lipase, IL-1β, IL-6, IL-8, IL-18, and TNF-α (all P<0.05), the mRNA expression levels and positive expression rates of NLRP3, TLR4, and NF-κB (all P<0.05), and the protein expression levels of NLRP3, TLR4, NF-κB, IL-1β, and IL-6 (all P<0.05). Compared with the model group, the low-, middle-, and high-dose QJHGD groups and the Western medicine group had slightly tighter and more intact structure of pancreatic tissue, ordered arrangement of pancreatic acinar cells, a small amount of inflammatory cell infiltration, and hemorrhagic foci of pancreatic lobules, as well as significant reductions in the content of α-amylase, lipase, IL-1β, IL-6, IL-8, IL-18, and TNF-α (all P<0.05), the mRNA expression levels and positive expression rates of NLRP3, TLR4, and NF-κB (all P<0.05), and the protein expression levels of NLRP3, TLR4, NF-κB, IL-1β, and IL-6 (all P<0.05). ConclusionQJHGD may exert a protective effect on the pancreatic tissue of SAP mice by inhibiting the activation of NLRP3/TLR4/NF-κB signaling pathway-related proteins, reducing the release of inflammatory mediators, and preventing the enhancement of inflammatory cascade response.
6.Vaccination certificate verification for children enrolled in kindergarten and primary school in Guizhou Province from 2020 to 2022
QIAO Sha, TANG Ning, DU Wen, DAI Lifang, DING Ling
Chinese Journal of School Health 2024;45(4):589-592
Objective:
To evaluate the implementation of vaccination certificate verification in Guizhou Province from 2020 to 2022, so as to provide reference for improving the efficiency of vaccination certificate verification and vaccine re inoculation work.
Methods:
Data was drawn from the 2020-2022 report on the verification of vaccination certificates for children entering daycare and enrollment in various cities and prefectures in Guizhou Province. In July, 2021, Guizhou Province began to implement a new inspection scheme with close cooperation between health and education departments, moving forward the gateway, parents using "Guizhou CDC" WeChat official account for self inspection, and a long term supervision and assessment mechanism. A comparative analysis was conducted on the evaluation of vaccination certificate verification rate, vaccination certificate holding rate, full revaccination rate of the National Immunization Program (NIP) for children and full vaccination rate of the NIP vaccine before(2020) and after(2021 and 2022) the implementation of the new plan. Chi square test was used for statistical analysis.
Results:
The rate of vaccination certificate verification of children enrolled in kindergarten and primary school in Guizhou Province increased from 99.85% in 2020 to 100% in 2022, the rate of holding certificate increased from 99.55% in 2020 to 99.91% in 2022, the rate of full vaccination NIP vaccines for kindergarten and primary school entry increased from 78.95% in 2020 to 96.59% in 2022, and the rate of full revaccination increased from 42.40% in 2020 to 79.19% in 2022 ( χ 2=2 203.19, 3 651.67, 291 896.31, 103 938.76, P < 0.01 ).
Conclusions
From 2020 to 2022, the rates of full vaccination and the full revaccination for NIP vaccine among children entering kindergarten in Guizhou Province have increased year by year. Each region should fully utilize the achievements of immunization planning informatization construction to establish effective inspection work ideas, and ensure that eligible children complete the full vaccination process of the national immunization plan vaccine.
7.Exploration and practice of smart hospital based on new diagnosis and treatment model
Hanliang DAN ; Zongyi LI ; Ning ZENG ; Rongrong NIE ; Haijiao ZHANG ; Fen TANG
Modern Hospital 2024;24(1):84-87
As the state vigorously promotes the high-quality development of hospitals and improves people's medical ex-perience,the patient-centered hospital should make full use of technological resources such as the Internet,5 G and artificial in-telligence,vigorously develop mobile medical services and artificial intelligence services,transform and optimize the diagnosis and treatment process,and streamline all links before,during and after diagnosis so as to provide better data services to the pa-tient to ensure that they can get things done with greater ease.The patients'medical experience and hospital management effi-ciency can be greatly improved.In this study,specific measures to create a new diagnosis and treatment model through the con-struction of smart hospital platform were expounded in order to provide references for related research and policy formulation of other Chinese medical institutions.
8.Extracellular Acidification Impairs Macrophage Lipophagy Through ASIC1/RIP1 Pathway
Juan LIU ; Xiang OU ; Qing LIU ; Miao GUO ; Zi-Ping NING ; Hong-Feng GU ; Ya-Ling TANG
Progress in Biochemistry and Biophysics 2024;51(1):202-214
ObjectiveOur recent study has demonstrated that extracellular acidification promotes lipid accumulation in macrophages via the activation of acid sensing ion channel 1 (ASIC1), but the underlying mechanism remains unclear. This study aims to explore the effect of extracellular acidification on macrophage lipophagy and the underlying mechanism. MethodsRAW264.7 macrophages were incubated with 25 mg/Lox-LDL in a pH 6.5 culture medium for 24 h to build macrophage-derived foam cell models induced by extracellular acidification. Then, RAW264.7 macrophages were cultured in the acidic medium of pH 6.5 with or without PcTx-1 (ASIC1 specific blocker, 10 μg/L) or Nec-1 (RIP1 specific inhibitor, 20 μmol/L) for 24 h, intracellular lipid accumulation was observed by oil red O staining. The expressions of total ASIC1, plasma membrane ASIC1, RIP1, p-RIP1 Ser166, TFEB, p-TFEB Ser142, LC3 and p62 were measured by Western blot. The co-localization of lipids (indicated by Bodipy) with LC3II (autophagosomes) and LAMP1 (lysosomes) was analyzed by a confocal laser scanning microscopy, respectively. Morphological changes of lipophagy in the cells were observed by using transmission electron microscopy. ABCA1-mediated cholesterol efflux was determined by cholesterol fluorescence kits. ResultsCompared with pH 7.4+ox-LDL group, the intracellular lipid accumulation in the pH 6.5+ox-LDL group was significantly increased. Meanwhile, the expressions of plasma membrane ASIC1, p-RIP1 Ser166, p-TFEB Ser142, and p62 proteins were elevated significantly, while LC3II protein level and LC3II/LC3I ratio were decreased. Accordingly, compared with pH 7.4+ox-LDL group, the macrophage lipophagy of the pH 6.5+ox-LDL group was inhibited as indicated by the decreased localization of lipid droplets with LC3 and LAMP1, a decrease in the number of lipophagosomes as well as an increase in lipid droplets. Furthermore, ATP binding cassette transporter A1 (ABCA1)-dependent cholesterol efflux from the macrophages of pH 6.5+ox-LDL group reduced dramatically. However, these above effects of extracellular acidification on RAW264.7 macrophages were abolished by PcTx-1 and Nec-1, respectively. ConclusionThese findings suggest extracellular acidification promotes the phosphorylation of TFEB at Ser142 via activating ASIC1/RIP1 pathway, thereby impeding lipophagy in RAW 264.7 macrophages, and that ASIC1 may be a new potential target for preventing aberrant lipid accumulation diseases including atherosclerosis.
9.Discussion of the methodology and implementation steps for assessing the causality of adverse event
Hong FANG ; Shuo-Peng JIA ; Hai-Xue WANG ; Xiao-Jing PEI ; Min LIU ; An-Qi YU ; Ling-Yun ZHOU ; Fang-Fang SHI ; Shu-Jie LU ; Shu-Hang WANG ; Yue YU ; Dan-Dan CUI ; Yu TANG ; Ning LI ; Ze-Huai WEN
The Chinese Journal of Clinical Pharmacology 2024;40(2):299-304
The assessment of adverse drug events is an important basis for clinical safety evaluation and post-marketing risk control of drugs,and its causality assessment is gaining increasing attention.The existing methods for assessing the causal relationship between drugs and the occurrence of adverse reactions can be broadly classified into three categories:global introspective methods,standardized methods,and probabilistic methods.At present,there is no systematic introduction of the operational details of the various methods in the domestic literature.This paper compares representative causality assessment methods in terms of definition and concept,methodological steps,industry evaluation and advantages and disadvantages,clarifies the basic process of determining the causality of adverse drug reactions,and discusses how to further improve the adverse drug reaction monitoring and evaluation system,with a view to providing a reference for drug development and pharmacovigilance work in China.
10.Epidemiological characteristics and spatiotemporal clustering of hepatitis A in China, 2005-2023
Yuexin XIU ; Lin TANG ; Qianqian LIU ; Xiaoqi WANG ; Siyu LIU ; Hong YANG ; Ning WEN ; Zundong YIN ; Fuzhen WANG
Chinese Journal of Epidemiology 2024;45(11):1528-1536
Objective:To analyze epidemiological characteristics and spatiotemporal clustering of hepatitis A in China from 2005 to 2023.Methods:The incidence data of hepatitis A in China during 2005-2023 were collected from the China Disease Control and Prevention Information System .Results:From 2005 to 2023, a total of 605 509 cases of hepatitis A were reported in China. The average annual reported incidence rate was 2.32/100 000, the incidence was 2.85/100 000 in men and 1.81/100 000 in women, and the incidence was 3.25/100 000 in age group 0-14 years, 2.10/100 000 in age group 15-64 years and 2.49/100 000 in age group ≥65 years , respectively. The case count in farmers was highest (40.57%, 245 639/605 509). The proportion of the cases in jobless or the unemployed increased most obviously (347.32%), and the proportion of the cases in students decreased most significantly (90.27%). The average annual reported incidence rate in the western China was highest (4.45/100 000), followed by that in northeastern China (2.02/100 000), central China (1.89/100 000) and eastern China (1.16/100 000). From 2020 to 2023, the incidence of hepatitis A showed no spatial clustering. From 2005 to 2019, the obvious hot spots and high-high clustering areas mainly distributed in provinces, such as, Sichuan, Qinghai, Xinjiang, Xizang and Gansu. The low-low clustering areas were mainly distributed in Beijing, Tianjin, Hebei, Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Henan, Anhui, Jiangxi, Jilin and Liaoning. An independent high-low clustering was found in Shanxi during 2014-2019. A total of 5 high incidence clustering areas were detected through spatiotemporal scanning analysis.Conclusions:The incidence rate of hepatitis A in China declined significantly from 2005 to 2023. The reported incidence rate in the elderly showed no obvious decrease, and the reported cases accounted for the highest proportion in the whole population. Before 2020, the reported incidence rate of hepatitis A showed high-high clustering in western China, the spatiotemporal clustering disappeared from 2020 to 2023, but the reported incidence rate of hepatitis A in western China was still high. It is suggested to pay attention to the prevention and control of hepatitis A in populations at high risk and areas with high incidence of hepatitis A.


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