1.Mechanism of Maimendong Yinzi in Alleviating Cough with Yin Deficiency and Lung Heat Syndrome by Modulating PAR1/Gαi/cAMP Signaling Pathway and TRPV1 Expression
Zihan ZHU ; Jiahui TANG ; Yuanyuan ZHANG ; Junping KOU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(1):81-91
ObjectiveTo investigate the effects of Maimendong Yinzi (MMDYZ) on cough with Yin deficiency and lung heat syndrome and explore its potential mechanism of action. MethodsForty-eight Institute of Cancer Research (ICR) mice were randomly divided into a control group, a model group, a Baihe Gujin Tablet (BHGJP) group (1.36 g·kg-1), and low-dose, medium-dose, and high-dose MMDYZ groups (5, 10, 20 g·kg-1·d-1, based on the weight of crude drug), with eight mice in each group. The mouse model of cough with Yin deficiency and lung heat syndrome was prepared by a combination of smoke exposure, nasal drip of lipopolysaccharide (LPS), intragastric gavage with thyroxine, and capsaicin atomization. After successful modeling, drug interventions were administered for seven days. During modeling, the mice were observed for changes in general status, anal temperature, fecal water content, and water intake. After medication, the above indicators were evaluated again, along with assessments of spontaneous activity, cough sensitivity, lung function, lung index, and tracheal phenol red secretion. Bronchoalveolar lavage fluid (BALF) was analyzed for cell differential counts, and the level of cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in serum was measured via enzyme linked immunosorbent assay (ELISA). Lung injury was assessed via hematoxylin-eosin (HE) staining. Network pharmacology was employed to predict the potential mechanism of MMDYZ in alleviation cough with Yin deficiency and lung heat syndrome. Western blot (WB) was used to measure protease-activated receptor1 (PAR1) and GTPhase αi subunit (Gαi) protein expressions in lung tissue. ELISA was used to determine lung cAMP content, and immunohistochemistry (IHC) was employed to evaluate transient receptor potential vanilloid subtype 1 (TRPV1) expression. ResultsCompared with the control group, the model group exhibited significantly increased water intake and anal temperature and significantly decreased fecal water content (P<0.05). The total distance traveled in 5 min and the central zone duration were reduced, while standing frequency significantly increased (P<0.05). Cough sensitivity and enhanced pause (PenH) were elevated. Peak expiratory flow (PEF) significantly declined (P<0.05). BALF neutrophil (NEU) and white blood cell (WBC) counts rose. Serum cAMP and cAMP/cGMP ratio significantly increased, and cGMP significantly decreased (P<0.05). Serum TNF-α and IL-6 levels were significantly elevated (P<0.05). The lung injury was obvious, and the lung index was significantly elevated (P<0.05). Compared with the model group, the medium-dose and high-dose MMDYZ groups and the BHGJP group showed significantly improved indicators mentioned above. Additionally, network pharmacology suggested that MMDYZ might alleviate cough with Yin deficiency and lung heat syndrome via cAMP, hypoxia inducible factor-1 (HIF-1), and TNF signaling pathways. WB, ELISA, and IHC revealed that, compared with the control group, the model group exhibited significantly upregulated PAR1, Gαi, and TRPV1 expressions and significantly downregulated cAMP in lung tissue (P<0.05). Compared with the model group, MMDYZ reduced PAR1 (P<0.01), Gαi (P<0.05), and TRPV1 (P<0.01) while increasing cAMP level (P<0.01). ConclusionMMDYZ may alleviate cough with Yin deficiency and lung heat syndrome by modulating the PAR1/Gαi/cAMP pathway and TRPV1 expression.
2.Pathological changes and macrophage polarization in the liver and spleen of mice infected with Angiostrongylus cantonensis
Xiaoyu QIN ; Yuchun CAI ; Yang HONG ; Fanna WEI ; Yahong HU ; Yumeng CAI ; Yuan HU ; Ting ZHANG ; Xiaojin MO ; Bin XU ; Yan LU ; Jiahui SUN ; Yan ZHOU ; Zelin ZHU ; Muxin CHEN
Chinese Journal of Schistosomiasis Control 2026;38(2):169-183
Objective To investigate the temporal changes in pathological damage and macrophage polarization in liver and spleen tissues of mice infected with Angiostrongylus cantonensis, and to preliminarily unravel the peripheral immune responses during the early stage of A. cantonensis infection. Methods Forty female BALB/c mice at ages of 6 to 8 weeks were randomly divided into four groups, including the control group and 7-, 14-, and 21-day infection groups, with 10 mice in each group. Each mouse in the infection groups was inoculated with 30 third-stage (L3) larvae of A. cantonensis by oral gavage, and five mice were randomly selected from each infection group on days 7, 14, and 21 post-infection, while mice in the control group were given the same volume of physiological saline and five mice were randomly selected from the control group on the day of oral gavage. Mouse liver and spleen tissues were sampled. The histopathological changes of mouse liver and spleen tissues were observed using hematoxylin and eosin (HE) staining, and the percentage of positive staining area and the co-localization positive rates of the macrophage surface antigens F4/80, CD86, and CD206 were quantified in mouse liver and spleen tissues using immunohistochemical and immunofluorescence staining. In addition, five mice were collected from each infection group on days 7, 14, and 21 post-infection, and five mice were collected from the control group on the day of oral gavage. Mouse liver and spleen tissues were sampled for detection of macrophage markers CD86 and CD206 and macrophage phenotyping using flow cytometry, and the expression of M1 macrophage markers, including inducible nitric oxide synthase (Nos2), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and M2 markers, including arginase 1 (Arg1), mannose receptor C-type 1 (Mrc1) and chitinase-like protein 3 (Chil3) was quantified in mouse liver and spleen tissues using real-time quantitative PCR (RT-qPCR) assay. Results Proliferative lesions of the hepatocyte were observed in mouse liver tissues and the follicular structures of the mouse spleen white pulp were disrupted 21 days post-infection with A. cantonensis. Immunohistochemical staining showed that there were significant differences in the percentages of F4/80, CD86 and CD206 positive staining areas in the liver and spleen tissues among the four groups of mice (F = 242.40, 197.14, 183.19, 157.65, 242.35 and 146.24; all P values < 0.001), and the percentages of positive staining in the liver and spleen tissues of mice in the 14-day infection group [(4.45 ± 0.51)%, (3.74 ± 0.67)%, (8.32 ± 0.72)%, (16.56 ± 1.14)%, (11.62 ± 0.52)%, and (8.29 ± 0.72)%, respectively] and the 21-day infection group [(3.70 ± 0.11)%, (3.22 ± 0.43)%, (11.53 ± 1.03)%, (12.59 ± 1.05)%, (9.02 ± 0.83)%, and (11.67 ± 1.10)%, respectively] were higher than in the control group [(0.35 ± 0.16)%, (0.40 ± 0.02)%, (0.93 ± 0.05)%, (2.78 ± 0.26)%, (2.33 ± 0.20)%, and (1.85 ± 0.20)%, respectively] (all P values < 0.05). Immunofluorescence staining showed significant differences in the positive rates of F4/80 co-localization with CD86 and CD206 in mouse liver and spleen tissues among the four groups (F = 24.42, 25.28, 54.51 and 130.55; all P values < 0.001). Flow cytometry detected significant differences in the proportions of CD86+ and CD206+ macrophages in mouse liver and spleen tissues among the four groups (F = 67.98, 18.41, 29.77, 172.80; all P values < 0.001), and the proportions of CD206+ macrophages in the liver and spleen of the 21-day infection group were significantly higher than those in the control group [(9.25 ± 2.55)% vs (3.83 ± 0.72)%, and (4.22 ± 0.56)% vs (0.47 ± 0.18)%, respectively] (both P values < 0.05). In addition, RT-qPCR assay quantified significant differences in the relative mRNA expression of M1 macrophage markers (IL-1β, TNF-α and Nos2) and M2 macrophage markers (Arg1, Chil3 and Mrc1) in mouse liver and spleen tissues among the four groups (F = 41.30, 31.82, 199.33, 19.96, 62.01, 119.76, 23.67, 95.90, 72.27, 82.59, 123.41 and 29.75; all P values < 0.05). Conclusions A. cantonensis infection may cause progressive pathological damage in mouse liver and spleen tissues, accompanied by dynamic temporal changes in macrophage polarization. M1 macrophage polarization predominates at the early stage of A. cantonensis infection and shifts towards M2 polarization at the later stages, suggesting that M2 polarization may participate in immune regulation at late stages of A. cantonensis infection by suppressing excessive inflammatory responses and promoting tissue repair.
3.Risk of dietary cadmium exposure from commercially available foods among residents of Jinhua City, Zhejiang Province
Zhuxin WANG ; Jiahui ZHU ; Gongjin LYU ; Pingping SHENTU
Shanghai Journal of Preventive Medicine 2026;38(8):591-597
ObjectiveTo investigate the cadmium contamination levels in commercially available foods in Jinhua City, to assess the dietary cadmium exposure risk among Jinhua residents, and to provide a scientific basis for optimizing dietary recommendations and managing cadmium exposure risks. MethodsFrom 2013 to 2024, a total of 4 434 samples of 15 categories of commercially available foods from the Jinhua Food Safety Risk Monitoring System, including rice, milled and processed grains, fresh vegetables 1 (leafy vegetables, celery, and daylily flowers), fresh vegetables 2 (legume vegetables, root and tuber vegetables, and stem vegetables other than celery) , fresh vegetables 3 (all vegetables other than fresh vegetables 1 and fresh vegetables 2), fresh fruits, legumes and legume products, nuts and seeds, meat and meat products (excluding livestock and poultry offal and products made from them), eggs and egg products, milk and dairy products, fish, crustaceans (excluding sea crabs and mantis shrimp), sea crabs and mantis shrimp, and other aquatic products (bivalves, gastropods, cephalopods, and echinoderms), were collected from 9 counties (cities and districts) in Jinhua City to assess their cadmium contamination levels. Combining these results with data from the 2023 Jinhua City Resident Nutrition Surveillance Survey, the health risks associated with dietary cadmium exposure among residents of different ages and genders in Jinhua City were assessed according to the provisional tolerable monthly intake (PTMI, 25 μg·kg-1) and margins of safety (MOS) recommended by the Joint FAO/WHO Expert Committee on Food Additives (JECFA). A MOS > 1 indicated that the risk of dietary cadmium exposure for residents was at an acceptable level,whereas a MOS ≤ 1 indicated that the risk of dietary cadmium exposure for residents was relatively high. ResultsThe cadmium detection rate in food was 73.55% (3 261/4 434), with 4.06% (180/4 434) of samples exceeding the limit. Foods with higher cadmium detection rates were in sea crabs and mantis shrimp (98.59%), fresh vegetables 1 (94.92%), and rice (87.93%). The median cadmium concentration was 0.010 mg·kg-1. Food categories with higher cadmium concentrations included sea crabs and mantis shrimp (0.644 mg·kg-1), rice (0.032 mg·kg-1), and fresh vegetables 1 (0.020 mg·kg-1). A total of 2 092 individuals were included in the population nutrition surveillance survey, and the average daily per capita food consumption was 887.97 g·d-1, consisting of fresh vegetables (342.17 g·d-1), meat and meat products (141.29 g·d-1), and rice (110.70 g·d-1). The 50th and 95th percentiles of cadmium mass fractions were used to define general and high exposure levels for assessing resident exposure risk. When assigning a value of 0 and the limit of detection (LOD) value to the contamination levels of undetected samples, at the general exposure level, the monthly average cadmium exposure for the residents was 5.08 and 5.15 μg·kg-1 (based on body weight; same below), with MOS values of 4.92 and 4.85; the range of average cadmium exposure across different age and gender groups was 3.91‒6.70 and 3.97‒6.80 μg·kg-1, with all MOS values >1, indicating that the dietary cadmium exposure risk for the residents was at an acceptable level. At the high exposure level, the average cadmium exposure for the residents was 36.02 μg·kg⁻¹, with an MOS value of 0.69; the average cadmium exposure levels for different age and gender groups ranged from 27.68 to 48.37 μg·kg⁻¹, with MOS values ranging from 0.52 to 0.90, all of which were <1; indicating that the dietary cadmium exposure risk for residents was relatively high. Dietary cadmium exposure among minors aged 6‒17 years in Jinhua City was higher than that among adults, and dietary cadmium exposure among females was higher than that among males. Rice and fresh vegetables were the major foods contributing to dietary cadmium exposure among residents in Jinhua City, each accounting for more than 30% of the total exposure contribution. ConclusionCommercially available foods in Jinhua City exhibit varying degrees of cadmium contamination, with higher levels primarily found in aquatic products such as sea crabs and mantis shrimp, fresh vegetables such as leafy greens, celery, and daylily flowers, as well as rice. The dietary cadmium exposure risk for residents of Jinhua City is at an acceptable level under general exposure conditions but poses a health risk under high exposure conditions. Monitoring of cadmium in relevant foods should be strengthened, and dietary guidance should be provided to high-risk groups including minors aged 6‒17 years and women.
4.A Cross-Sectional Study on the Distribution of Traditional Chinese Medicine Constitutions and Factors Associated with Hyperuricemia
Zhongyi ZHANG ; Fangli LI ; Shiping HU ; Shujie AN ; Xihuan ZHU ; Jiahui ZHANG ; Luyao JIN ; Yuhan ZONG ; Mengru ZHOU ; Ji WANG ; Huaiyu WANG ; Qi WANG
Journal of Traditional Chinese Medicine 2026;67(20):2210-2218
ObjectiveTo analyze the distribution characteristics of traditional Chinese medicine (TCM) constitution and factors associated with hyperuricemia (HUA) in the HUA population, providing a reference for persona-lized prevention and management of HUA. MethodsA cross-sectional study was conducted among individuals who had completed both serum uric acid (SUA) testing and TCM constitution identification during health examinations. According to SUA levels, participants were divided into a hyperuricemia group and a normal SUA group; according to the constitution identification results, participants were classified into balanced constitution, single biased constitution, and mixed constitution. The distribution characteristics of TCM constitution were compared between the two groups; participants in the hyperuricemia group were stratified by sex and age (≥18 years and <40 years, ≥40 years), and the distribution characteristics of TCM constitution were compared across different sex and age groups. Logistic regression was used to analyze factors associated with HUA, with further stratified analyses by sex and age. ResultsA total of 10 920 participants were included, comprising 4170 cases (38.19%) in the hyperuricemia group and 6750 cases (61.81%) in the normal serum uric acid group. According to TCM constitution, there were 420 cases (3.85%) with balanced constitution, 6108 cases (55.93%) with single biased constitution, and 4392 cases (40.22%) with mixed constitution. In the hyperuricemia group, there were 80 cases (19.05%) with balanced constitution; 2275 cases (37.25%) with single biased constitution, among which damp-heat constitution (1205 cases, 52.97%), phlegm-dampness constitution (500 cases, 21.98%), and qi-stagnation constitution (181 cases, 7.96%) accounted for relatively high proportions; and 1815 cases (41.33%) with mixed constitution, among which mixed constitution involving phlegm-dampness (51.35%, 932 cases), mixed constitution involving blood stasis (47.00%, 853 cases), and mixed constitution involving damp-heat (41.21%, 748 cases) accounted for relatively high proportions. Logistic regression showed that qi-stagnation constitution (OR=1.68), mixed constitution involving qi-stagnation (OR=1.53), mixed constitution involving phlegm-dampness (OR=1.55), and mixed constitution involving blood stasis (OR=1.50) were independently associated with HUA (P<0.05). Sex-stratified analysis showed that mixed constitution involving phlegm-dampness was positively associated with HUA risk in females; age-stratified analysis showed that, among individuals aged ≥18 and <40 years, qi-stagnation constitution, mixed constitution involving qi stagnation, and mixed constitution involving phlegm-dampness were positively associated with HUA risk (all P<0.05). ConclusionThe prevalence of HUA differs markedly by sex and age. Mixed constitution accounts for a higher proportion of HUA patients. Qi-stagnation constitution, mixed constitution involving qi stagnation, mixed constitution involving phlegm-dampness, and mixed constitution involving blood stasis are associated with HUA. Notably, the specific association of mixed constitution involving phlegm-dampness in females and qi-stagnation constitution in young adults is particularly prominent.
5.Evaluation of dietary quality among adult residents in Jinhua City
SHENTU Pingping ; ZHU Jiahui ; SU Danting ; LÜ ; Gongjin
Journal of Preventive Medicine 2026;38(3):274-278
Objective:
To evaluate the dietary quality among residents aged 18-79 years in Jinhua City, Zhejiang Province using Dietary Balance Index (DBI_22), so as to provide evidence for improving residents' nutritional status and formulating targeted nutritional intervention measures.
Methods:
From July to October in 2023-2024, a multi-stage random sampling method was employed to select residents aged 18-79 years in Jinhua City as survey subjects. Demographic information was collected through questionnaire survey. Dietary intake was investigated using 3 d 24 h dietary recall method. The DBI_22 higher bound score (DBI_HBS), lower bound score (DBI_LBS), and Dietary Quality Distance (DBI_DQD) were calculated to evaluate dietary quality. Dietary patterns were determined based on DBI_HBS and DBI_LBS scores.
Results:
A total of 3 284 residents were surveyed, with an average age of (52.81±14.93) years. There were 1 590 males (48.42%) and 1 694 females (51.58%). There were 857 urban residents (26.10%) and 2 427 rural residents (73.90%). The DBI_HBS was (13.85±4.91) points, with low excessive intake accounting for 61.18%; the DBI_LBS was (20.05±5.62) points, with low insufficient intake accounting for 74.54%; the DBI_DQD was (33.90±7.75) points, with low and moderate dietary imbalance accounting for 49.73% and 46.99%, respectively. Males, residents aged 60-79 years, and rural residents had higher DBI_DQD scores, indicating dietary imbalance. Insufficient intake was reported by 84.81% of residents for fruits, 96.56% for milk, and 55.09% for legumes. Excessive consumption was observed in 80.36% for poultry/meat and 39.74% for salt. Among the six identified dietary patterns, pattern A was optimal and adopted by 518 residents (15.77%), while patterns D and E had the highest participation rates, with 1 045 (31.82%) and 1 037 (31.58%) residents, respectively.
Conclusions
The dietary intake among residents in Jinhua City is characterized by both insufficient intake and excessive intake. Males, residents aged 60-79 years, and rural residents are key populations with dietary imbalance. The main dietary patterns are characterized by insufficient intake of fruits, milk, and legumes, and excessive intake of poultry/meat and salt.
6.Comparison of Therapeutic Effect of Different Preparation Processes of Baihe Dihuangtang on Depressed Mice Based on Q-Marker
Yan LIU ; Jiameng LIU ; Jiahui PENG ; Dan LI ; Shengjun MA ; Jingfan YANG ; Yu FU ; Guangwei ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):159-167
ObjectiveBased on modern analytical techniques and a depressed mouse model established by chronic unpredictable mild stress(CUMS), to evaluate the quality marker(Q-Marker) and pharmacodynamic difference of Baihe Dihuangtang prepared by different processes. MethodsHigh performance liquid chromatography(HPLC) was used to establish the characteristic profiles of Baihe Dihuangtang, and determine the content of Q-Marker in the samples prepared by ancient and modern processes. Seventy C57BL/6J mice were randomly divided into the normal group, model group, fluoxetine group(3 mg·kg-1), low and high dose groups of ancient process(6.5, 26 g·kg-1), and low and high dose groups of modern process(6.5, 26 g·kg-1), with 10 mice in each group. Except for the normal group, CUMS was used to induce depression in mice from the other groups for 28 d. After successful modeling, administration groups were given the corresponding drugs by gavage every day, and the normal and model groups were given an equal volume of pure water by gavage for 21 consecutive days. Change in body mass of mice was recorded, tail suspension test and open field test were used to evaluate the depressive behavior of mice, and enzyme-linked immunosorbent assay(ELISA) was employed to determine the contents of tumor necrosis factor-α(TNF-α), interleukin(IL)-1β and IL-6 in serum. ResultsCharacteristic profiles of Baihe Dihuangtang prepared by the two processes were established, the similarity between the two was 0.951, and 8 characteristic peaks were recognized with the reference peak of regaloside A. The results of quantitative analysis showed that the Q-Marker content was similar in Baihe Dihuangtang prepared by ancient and modern processes. The results of pharmacodynamics showed that, compared with the normal group, the model group showed increased immobility time in the tail suspension test, reduced total movement distance in the open field test, and elevated IL-1β, IL-6 and TNF-α levels in the serum(P<0.01). Compared with the model group, the behavioral indicators of mice in the Baihe Dihuangtang treatment group were significantly improved in terms of tail suspension time and open field exercise, and the levels of IL-1β, IL-6 and TNF-α in serum were significantly reduced(P<0.05, P<0.01). Baihe Dihuangtang prepared by the two processes both had antidepressant effects, and the difference between the two was not statistically significant in improving depressive symptoms. ConclusionQ-Marker of Baihe Dihuangtang prepared by modern and ancient methods are equivalent in content, and the pharmacological effects are consistent, indicating that dried Lilii Bulbus can replace fresh products in the preparation of Baihe Dihuangtang. This study provides a scientific basis for the development of new drugs of Baihe Dihuangtang and a reference for its rational application and clinical use.
7.Comparison of Therapeutic Effect of Different Preparation Processes of Baihe Dihuangtang on Depressed Mice Based on Q-Marker
Yan LIU ; Jiameng LIU ; Jiahui PENG ; Dan LI ; Shengjun MA ; Jingfan YANG ; Yu FU ; Guangwei ZHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):159-167
ObjectiveBased on modern analytical techniques and a depressed mouse model established by chronic unpredictable mild stress(CUMS), to evaluate the quality marker(Q-Marker) and pharmacodynamic difference of Baihe Dihuangtang prepared by different processes. MethodsHigh performance liquid chromatography(HPLC) was used to establish the characteristic profiles of Baihe Dihuangtang, and determine the content of Q-Marker in the samples prepared by ancient and modern processes. Seventy C57BL/6J mice were randomly divided into the normal group, model group, fluoxetine group(3 mg·kg-1), low and high dose groups of ancient process(6.5, 26 g·kg-1), and low and high dose groups of modern process(6.5, 26 g·kg-1), with 10 mice in each group. Except for the normal group, CUMS was used to induce depression in mice from the other groups for 28 d. After successful modeling, administration groups were given the corresponding drugs by gavage every day, and the normal and model groups were given an equal volume of pure water by gavage for 21 consecutive days. Change in body mass of mice was recorded, tail suspension test and open field test were used to evaluate the depressive behavior of mice, and enzyme-linked immunosorbent assay(ELISA) was employed to determine the contents of tumor necrosis factor-α(TNF-α), interleukin(IL)-1β and IL-6 in serum. ResultsCharacteristic profiles of Baihe Dihuangtang prepared by the two processes were established, the similarity between the two was 0.951, and 8 characteristic peaks were recognized with the reference peak of regaloside A. The results of quantitative analysis showed that the Q-Marker content was similar in Baihe Dihuangtang prepared by ancient and modern processes. The results of pharmacodynamics showed that, compared with the normal group, the model group showed increased immobility time in the tail suspension test, reduced total movement distance in the open field test, and elevated IL-1β, IL-6 and TNF-α levels in the serum(P<0.01). Compared with the model group, the behavioral indicators of mice in the Baihe Dihuangtang treatment group were significantly improved in terms of tail suspension time and open field exercise, and the levels of IL-1β, IL-6 and TNF-α in serum were significantly reduced(P<0.05, P<0.01). Baihe Dihuangtang prepared by the two processes both had antidepressant effects, and the difference between the two was not statistically significant in improving depressive symptoms. ConclusionQ-Marker of Baihe Dihuangtang prepared by modern and ancient methods are equivalent in content, and the pharmacological effects are consistent, indicating that dried Lilii Bulbus can replace fresh products in the preparation of Baihe Dihuangtang. This study provides a scientific basis for the development of new drugs of Baihe Dihuangtang and a reference for its rational application and clinical use.
8.MASLD development: From molecular pathogenesis toward therapeutic strategies.
Zhu YANG ; Jiahui ZHAO ; Kexin XIE ; Chengwei TANG ; Can GAN ; Jinhang GAO
Chinese Medical Journal 2025;138(15):1807-1824
Metabolic dysfunction-associated steatotic liver disease (MASLD) comprises a spectrum of liver injuries, including steatosis to steatohepatitis (MASH), liver fibrosis, cirrhosis, and relevant complications. The liver mainly comprises hepatocytes, liver sinusoidal endothelial cells (LSECs), Kupffer cells (KCs), immune cells (T cells, B cells), and hepatic stellate cells (HSCs). Crosstalk among these different liver cells, endogenous aberrant glycolipid metabolism, and altered gut dysbiosis are involved in the pathophysiology of MASLD. This review systematically examines advances in understanding the molecular pathogenesis of MASLD, with a focus on emerging therapeutic targets and translational clinical trials. We first delineate the crucial regulatory mechanisms involving diverse liver cells and the gut-liver axis in MASLD development. These cell-specific pathogenic insights offer valuable perspectives for advancing precision medicine approaches in MASLD treatment. Furthermore, we evaluate potential therapeutic targets and summarize clinical trials currently underway. By comprehensively updating the MASLD pathophysiology and identifying promising strategies, this review aims to facilitate the development of novel pharmacotherapies for this increasingly prevalent condition.
Humans
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Fatty Liver/therapy*
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Animals
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Liver/pathology*
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Kupffer Cells/metabolism*
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Hepatocytes/metabolism*
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Hepatic Stellate Cells/metabolism*
9.A survey on the cognition of mpox expertise among relevant clinicians in China
Zewei CHEN ; Wenqian ZHU ; Yuelin WU ; Shiqing LIANG ; Xiaoli YUE ; Jing LI ; Jiahui ZHANG ; Xiangdong GONG
Chinese Journal of Epidemiology 2025;46(2):239-244
Objective:To investigate and evaluate the correct cognition and influencing factors of mpox expertise among relevant Chinese clinicians and to provide a reference for prevention and control.Methods:A cross-sectional survey was conducted among clinicians in relevant departments using a structured questionnaire compiled by ourselves through a non-random network recruitment method. The content includes demography, clinical specialties, and characteristics of medical institutions, and 37 questions to evaluate the professional cognition of mpox etiology, clinical characteristics, transmission, prevention, and control. Using the modified Bloom's cutoff point to determine the correct answer is greater than or equal to 26 entitled correct cognition. A logistic regression model was used to analyze the factors influencing the correct cognition rate.Results:A total of 4 332 clinicians in 23 provinces (autonomous regions, municipality) in China were investigated by online questionnaires and 4 276 effective questionnaires were collected, with an effective rate of 98.71%. The mean age of the respondents was (39.46±9.54) years old, 61.18% were female. The overall correct cognition rate of mpox expertise was 62.04% (95% CI: 60.59%-63.50%), the correct cognition rates of mpox etiology, clinical characteristics, transmission, prevention and control were 48.25% (95% CI: 46.68%-49.82%), 78.66% (95% CI: 77.38%-79.95%), 68.56% (95% CI: 67.10%-70.02%), respectively. Multivariate logistic regression analysis showed that the relevant factors affecting the overall correct cognition of mpox expertise among Chinese clinicians included gender (female: OR=1.54, 95% CI: 1.31-1.80), region (eastern region: OR=1.46, 95% CI: 1.18-1.79; midwestern region: OR=1.24, 95% CI: 1.04-1.49), professional title (deputy senior: OR=1.43, 95% CI:1.16-1.76; senior: OR=1.72, 95% CI:1.30-2.28), the clinical field (the clinical fields of dermatology and venereal diseases: OR=1.78, 95% CI: 1.42-2.23). Conclusions:The overall correct cognition rate of mpox expertise among relevant Chinese clinicians was low. It was essential to conduct mpox knowledge training for clinicians in males, northeast regions, junior professional title and the clinical fields other than dermatology and venereal diseases to improve their correct cognition rates and epidemic prevention and control ability.
10.Treatment of large bone defects in load-bearing bone: traditional and novel bone grafts.
Dan YU ; Wenyi SHEN ; Jiahui DAI ; Huiyong ZHU
Journal of Zhejiang University. Science. B 2025;26(5):421-447
Large bone defects in load-bearing bone can result from tumor resection, osteomyelitis, trauma, and other factors. Although bone has the intrinsic potential to self-repair and regenerate, the repair of large bone defects which exceed a certain critical size remains a substantial clinical challenge. Traditionally, repair methods involve using autologous or allogeneic bone tissue to replace the lost bone tissue at defect sites, and autogenous bone grafting remains the "gold standard" treatment. However, the application of traditional bone grafts is limited by drawbacks such as the quantity of extractable bone, donor-site morbidities, and the risk of rejection. In recent years, the clinical demand for alternatives to traditional bone grafts has promoted the development of novel bone-grafting substitutes. In addition to osteoconductivity and osteoinductivity, optimal mechanical properties have recently been the focus of efforts to improve the treatment success of novel bone-grafting alternatives in load-bearing bone defects, but most biomaterial synthetic scaffolds cannot provide sufficient mechanical strength. A fundamental challenge is to find an appropriate balance between mechanical and tissue-regeneration requirements. In this review, the use of traditional bone grafts in load-bearing bone defects, as well as their advantages and disadvantages, is summarized and reviewed. Furthermore, we highlight recent development strategies for novel bone grafts appropriate for load-bearing bone defects based on substance, structural, and functional bionics to provide ideas and directions for future research.
Humans
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Bone Transplantation/methods*
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Weight-Bearing
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Bone Regeneration
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Bone Substitutes
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Bone and Bones
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Animals
;
Tissue Scaffolds


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