1.Associations of weekly working hours with neck and lower back work-related musculoskeletal disorders among bus drivers in Shenzhen
Yuxi WANG ; Dafeng LIN ; Shengli CHEN ; Huan GUO ; Naixing ZHANG ; Shaofan WENG
Journal of Environmental and Occupational Medicine 2025;42(3):286-292
Background Work-related musculoskeletal disorders (WMSDs) are one of the major occupational health problems faced by bus drivers and should receive special attention. Objective To explore the associations of weekly working hours and sleep quality with neck and lower back WMSDs among bus drivers, as well as assess the potential mediating role of sleep quality. Methods From June to December 2022, we recruited bus drivers from 5 subsidiaries of the Shenzhen Bus Group by convenient sampling method. Demographic characteristics, lifestyles, and work-related features of the bus drivers were collected through a questionnaire survey. The Pittsburgh Sleep Quality Index (PSQI) scale and the Musculoskeletal Disorders Survey Questionnaire were used to assess sleep quality and WMSDs respectively. Logistic regression models were applied to analyze the associations of weekly working hours and sleep quality with WMSDs in neck and lower back. Furthermore, mediation analysis was performed to investigate the role of sleep quality in the associations between weekly work hours and neck and lower back WMSDs. Results A total of
2.Connotation and Clinical Application of "The Nature of Cold and Heat Complex Syndrome is Cold": from the Perspective of Zang-Fu (脏腑) Wind-Damp Theory
Tong LIN ; Yingying YANG ; Linhua ZHAO ; Lili ZHANG
Journal of Traditional Chinese Medicine 2025;66(8):795-799
According to zang-fu (脏腑) wind-damp theory, it is believed that wind, cold, and dampness are internal pathogenic factors that, when stagnated, transform into heat and invade the zang-fu organs, leading to chronic conditions. Heat is seen as a manifestation, while cold is considered the root cause. When external factors trigger these latent pathogens, the disease of the zang-fu organs exacerbates or relapses, often presenting with a complex syndrome of cold and heat. Based on this theory, the viewpoint of "for complex syndrome of cold and heat, cold is the root" is proposed. It suggests that for diseases with a complex cold-heat syndrome, external invasion of wind, cold, and dampness are the initiating factors. During the acute phase, treatment should focus on dispelling and eliminating the pathogens to promote the expulsion of the latent wind, cold, and dampness. During the remission phase, the focus shifts to reinforcing the healthy qi and tonifying the root, allowing the cold and dampness to be cleared. Internal dampness originates from the spleen; therefore, regulating the spleen and stomach, and dispersing cold and removing dampness is the key to treating wind-damp disorders of zang-fu organs. Cold and dampness are both yin pathogens, which damage yang qi, and repeated invasions of wind, cold, and dampness obstruct the qi flow of the zang-fu organs, progressively weakening yang qi. Hence, it is necessary to protect yang qi, and thereafter dispelling cold and dampness by warming yang. The theory that "for complex syndrome of cold and heat, cold is the root" provides guidance for the clinical application and the treatment of complex and difficult diseases in traditional Chinese medicine.
3.Status of Clinical Practice Guideline Information Platforms
Xueqin ZHANG ; Yun ZHAO ; Jie LIU ; Long GE ; Ying XING ; Simeng REN ; Yifei WANG ; Wenzheng ZHANG ; Di ZHANG ; Shihua WANG ; Yao SUN ; Min WU ; Lin FENG ; Tiancai WEN
Medical Journal of Peking Union Medical College Hospital 2025;16(2):462-471
Clinical practice guidelines represent the best recommendations for patient care. They are developed through systematically reviewing currently available clinical evidence and weighing the relative benefits and risks of various interventions. However, clinical practice guidelines have to go through a long translation cycle from development and revision to clinical promotion and application, facing problems such as scattered distribution, high duplication rate, and low actual utilization. At present, the clinical practice guideline information platform can directly or indirectly solve the problems related to the lengthy revision cycles, decentralized dissemination and limited application of clinical practice guidelines. Therefore, this paper systematically examines different types of clinical practice guideline information platforms and investigates their corresponding challenges and emerging trends in platform design, data integration, and practical implementation, with the aim of clarifying the current status of this field and providing valuable reference for future research on clinical practice guideline information platforms.
4.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.
5.Mechanism of Wendantang in Intervention of ApoE-/- Hyperlipidemic Mice Based on Liver Metabolomics
Yun ZHOU ; Songren YU ; Lu ZHANG ; Wenting LIN ; Keming YU ; Min XIA ; Zhijun ZENG ; Yanhua JI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):1-9
ObjectiveTo explore the mechanism of action of Wendantang on ApoE-/- hyperlipidemic mice using non-targeted metabolomics technology. MethodsMale C57BL/6J mice served as the normal control group (n=6), and they were fed with regular chow, while male ApoE-/- mice constituted the high-fat group (n=30), and they were fed with a 60% high-fat diet. After 11 weeks of model establishment, the mice in the high-fat group were randomly divided into the model group, simvastatin group (3.3 mg·kg-1), and high-dose, medium-dose, and low-dose groups of Wendantang (26, 13, 6.5 g·kg-1, respectively, in terms of crude drug amount), with six mice in each group. The normal control group and the model group were gavaged with an equivalent volume of normal saline, and all groups continued to be fed their respective diets, receiving daily medication for 10 weeks with weekly body weight measurements. Serum levels of total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), free fatty acids (NEFA), blood glucose (GLU), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) were detected in the mice. Pathological changes in liver tissue were observed using hematoxylin-eosin (HE) staining, and ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) was employed for metabolomic analysis of mouse liver tissue. ResultsCompared to the normal control group, the model group exhibited significantly increased body weight, blood lipid levels, and liver function (P<0.05, P<0.01), with disordered liver tissue structure, swollen hepatocytes, and accompanying vacuolar fatty degeneration and inflammatory cell infiltration. Compared to the model group, the simvastatin group and Wendantang groups showed significantly reduced body weight, TG, NEFA, GLU, ALT, and AST levels (P<0.05, P<0.01), with a significant increase in HDL-C levels (P<0.05, P<0.01), demonstrating a dose-dependent effect. The lesion of the liver tissue section was obviously improved after administration, tending towards a normal liver tissue morphology. Analysis of liver metabolites revealed 86 differential metabolites between the normal control group and the model group, with the high-dose group of Wendantang able to regulate 56 of these metabolites. Twenty-two differential metabolites associated with hyperlipidemia were identified, mainly including chenodeoxycholic acid, hyocholic acid, taurine, glycocholic acid, dihydroceramide, hydroxy sphingomyelin C14∶1, arachidonic acid, and linoleic acid, enriching 22 metabolic pathways, with 4 being the most significant (P<0.05), namely primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways. ConclusionWendantang can improve blood lipid levels and liver function in ApoE-/- hyperlipidemic mice, which may be related to the regulation of primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways.
6.Analysis on Quality Standard of Hedyotis Herba Dispensing Granules Based on Standard Decoction
Jinghua ZHANG ; Nana WU ; Yanan LYU ; Guiyun CAO ; Jiacheng XU ; Yongqiang LIN ; Xiaodi DONG ; Jinxin LI ; Zhaoqing MENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):210-217
ObjectiveTo establish the specific chromatogram and quantitative analysis of multi-components by single-marker(QAMS) based on linear calibration using two reference substances(LCTRS), explore the consistency between Hedyotis Herba dispensing granules and standard decoction, and evaluate the quality of the dispensing granules. MethodsHigh performance liquid chromatography(HPLC) specific chromatogram was established based on 15 batches of Hedyotis Herba standard decoction and 10 batches of the dispensing granules, and LCTRS was used to locate chromatographic peaks. The actual retention times of 7 characteristic peaks in the specific chromatogram was measured on 24 different types of C18 columns, taking deacetyl asperulosidic acid and asperulosidic acid as the dual standard compounds, the retention times of the other 5 characteristic peaks were predicted and validated. Based on this, QAMS was developed to determine the contents of four components(deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester, asperulosidic acid, and p-coumaric acid). Then, the relative correction factors of deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester and p-coumaric acid were calculated using the reference peak of asperulosidic acid in the dual standard compounds, and each component was quantified accordingly. Finally, the consistency between the dispensing granules and standard decoction was assessed by taking extract rate of the standard decoction, consistency of the specific chromatograms, contents and transfer rates of the indicator components as indexes, and the quality of the dispensing granules was evaluated. ResultsThere were 7 common peaks in the characteristic chromatogram of samples of Hedyotis Herba standard decoction and the dispensing granules, and four of them were identified by reference standards, namely deacetyl asperulosidic acid(peak 1), deacetyl asperulosidic acid methyl ester(peak 3), asperulosidic acid(peak 6) and p-coumaric acid(peak 7). The similarity between the dispensing granules and the standard decoction was >0.9. The absolute deviation in the predicted retention time for each component by LCTRS was lower than that of the relative retention time method. The extract rate of the 15 batches of Hedyotis Herba standard decoction ranged from 7.89% to 14.60%, the contents of deacetyl asperulosidic acid, deacetyl asperulosidic acid methyl ester, asperulosidic acid and p-coumaric acid were 6.62-19.70, 3.83-17.99, 1.57-6.69, 1.62-4.52 mg·g-1, and the transfer rates of these components from decoction pieces to the standard decoction were 22.89%-39.60%, 34.03%-62.24%, 24.25%-43.70%, and 40.58%-73.71%, respectively. The extract rate, index component contents and transfer rates from decoction pieces to the three batches of Hedyotis Herba dispensing granules(P1-P3), produced by manufacturer A, were similar to those of the standard decoction prepared from the same batch of decoction pieces, and all fell within the specified range. The contents of the 4 indicator components in 7 batches of the dispensing granules(P4-P10) from manufacturers B-E were all within the range of the content converted from the standard decoction based on the quantity of the dispensing granules. ConclusionThe established specific chromatogram and QAMS based on LCTRS are reasonable and reliable. Based on the evaluation indicators of standard decoction yield, consistency of specific chromatograms, contents and transfer rates of the four index components, the 10 batches of Hedyotis Herba dispensing granules from various manufacturers have exhibited good consistency with the standard decoction, indicating that the current production process is relatively reasonable.
7.Mechanism of Traditional Chinese Medicine Against Gouty Arthritis via Regulating Nrf2 Signaling Pathway: A Review
Siyi CHEN ; Shumin HUANG ; Yushan ZHAO ; Jiajin LIN ; Qian SHI ; Yefeng CHEN ; Yize ZHANG ; Zhongwen ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):323-330
Gouty arthritis (GA) is an inflammatory disorder caused by monosodium urate (MSU) crystal deposition, accompanied by elevated oxidative stress and aberrant release of inflammatory cytokines, resulting in joint tissue damage and intense pain. Nuclear factor E2-related factor 2 (Nrf2), a key transcription factor regulating the antioxidant defence system, exerts cytoprotective effects through dissociation from Kelch-like ECH-associated protein 1 (Keap1) and activates downstream antioxidant response element (ARE)-mediated pathways. It can upregulate the expression of heme oxygenase-1 (HO-1), NADH quinone oxidoreductase 1 (NQO1), superoxide dismutase (SOD), and glutathione transferase (GST) to preserve redox homeostasis. Moreover, Nrf2 can suppress activation of NOD-like receptor protein 3 (NLRP3) inflammasomes, reduce pro-inflammatory cytokine production and release, modulate nuclear factor-κB (NF-κB) transcriptional activity, regulate gut microbiota balance, enhance mitophagy, and inhibit apoptosis, so as to reduce joint inflammation and pain and promote body recovery. This review systematically examined recent advancements in traditional Chinese medicine (TCM) for GA prevention and treatment via regulating the Nrf2 signaling pathway. It delineated Nrf2's molecular mechanisms and its role in GA pathogenesis and elucidated how TCM intervenes in multiple pathways including Keap1/Nrf2/ARE, Nrf2/HO-1(NQO1), and Nrf2/NF-κB/NLRP3 to exert therapeutic effects. The study demonstrated that TCM monomers and compounds effectively counteract oxidative damage, attenuate inflammatory responses, promote autophagy, and inhibit apoptosis via regulating the Nrf2 signaling pathway. These findings not only clarify the scientific basis of TCM in GA treatment but also offer strategic insights for developing novel Nrf2-targeted anti-gout drugs.
8.Research progress on dry eye-related factors and treatment after phacoemulsification
Ao ZHANG ; Shiyi LI ; Ju HUANG ; Kang WANG ; Lin WANG ; Yingbin XIE
International Eye Science 2025;25(5):770-774
Phacoemulsification with intraocular lens implantation(Phaco+lOL)has become the main treatment for cataracts due to small incision and fast recovery. Phacoemulsification can damage the conjunctiva, cornea and other ocular surface tissues, causing local inflammation, which in turn leads to eye dryness and discomfort after surgery. According to studies, patients who suffer from phacoemulsification most experience dry eye syndrome within 24 h, which gradually worsens and reaches its peak in the following 1 wk, seriously affecting their quality of life. The review aims to comprehensively investigate the effects of preoperative patient physical conditions and local ocular status, intraoperative maneuvers and postoperative treatments on postoperative dry eye, with the expectation of formulating scientific and effective preventive measures for potential dry eye patients after phacoemulsification, and providing a theoretical basis for postoperative dry eye treatment.
9.Analysis and forecast of the disease burden of schistosomiasis in China from 1992 to 2030
Kai LIN ; Chenhuan ZHANG ; Zhendong XU ; Xuemei LI ; Renzhan HUANG ; Yawen LIU ; Haihang YU ; Lisi GU
Chinese Journal of Schistosomiasis Control 2025;37(1):24-34
Objective To analyze the trends in the disease burden of schistosomiasis in China from 1992 to 2021, and to project the disease burden of schistosomiasis in China from 2022 to 2030, so as to provide insights into the elimination of schistosomiasis in China. Methods The prevalence, age-standardized prevalence, disability-adjusted life year (DALYs) rate and age-standardized DALYs rate of schistosomiasis, as well as the years lost due to disability (YLDs) rate and age-standardized YLDs rate of anemia attributable to Schistosoma infections in China, the world and different socio-demographic index (SDI) regions were captured from the Global Burden of Disease Study 2021 (GBD 2021) data resources, and the trends in the disease burden due to schistosomiasis were evaluated with estimated annual percentage change (EAPC) and its 95% confidence interval (CI). In addition, the age, period and cohort effects on the prevalence of schistosomiasis were examined in China using an age-period-cohort (APC) model, and the disease burden of schistosomiasis was predicted in China from 2022 to 2030 using a Bayesian age-period-cohort (BAPC) model. Results The age-standardized prevalence and DALYs rate of schistosomiasis, and the age-standardized YLDs rate of anemia attributable to Schistosoma infections were 761.32/105, 5.55/105 and 0.38/105 in China in 2021. These rates were all lower than the global levels (1 914.30/105, 21.90/105 and 3.36/105, respectively), as well as those in the medium SDI regions (1 413.61/105, 12.10/105 and 1.93/105, respectively), low-medium SDI regions (2 461.03/105, 26.81/105 and 4.48/105, respectively), and low SDI regions (5 832.77/105, 94.48/105 and 10.65/105, respectively), but higher than those in the high SDI regions (59.47/105, 0.49/105 and 0.05/105, respectively) and high-medium SDI regions (123.11/105, 1.20/105 and 0.12/105, respectively). The prevalence and DALYs rate of schistosomiasis were higher among men (820.79/105 and 5.86/105, respectively) than among women (697.96/105 and 5.23/105, respectively) in China in 2021, while the YLDs rate of anemia attributable to Schistosoma infections was higher among women (0.66/105) than among men (0.12/105). The prevalence of schistosomiasis peaked at ages of 30 to 34 years among both men and women, while the DALYs rate of schistosomiasis peaked among men at ages of 15 to 19 years and among women at ages of 20 to 24 years. The age-standardized prevalence of schistosomiasis showed a moderate decline in China from 1992 to 2021 relative to different SDI regions [EAPC = -1.51%, 95% CI: (-1.65%, -1.38%)], while the age-standardized DALYs rate [EAPC = -3.61%, 95% CI: (-3.90%, -3.33%)] and age-standardized YLDs rate of anemia attributable to Schistosoma infections [EAPC = -4.16%, 95% CI: (-4.38%, -3.94%)] appeared the fastest decline in China from1992 to 2021 relative to different SDI regions. APC modeling showed age, period, and cohort effects on the trends in the prevalence of schistosomiasis in China from 1992 to 2021, and the prevalence of schistosomiasis appeared a rise followed by decline with age, and reduced with period and cohort. BAPC modeling revealed that the age-standardized prevalence and age-standardized DALYs rate of schistosomiasis, and age-standardized YLDs rate of anemia attributable to Schistosoma infections all appeared a tendency towards a decline in China from 2022 to 2030, which reduced to 722.72/105 [95% CI: (538.74/105, 906.68/105)], 5.19/105 [95% CI: (3.54/105, 6.84/105)] and 0.30/105 [95% CI: (0.21/105, 0.39/105)] in 2030, respectively. Conclusions The disease burden of schistosomiasis appeared a tendency towards a decline in China from 1992 to 2021, and is projected to appear a tendency towards a decline from 2022 to 2030. There are age, period and cohort effects on the prevalence of schistosomiasis in China. Precision schistosomiasis control is required with adaptations to current prevalence and elimination needs.
10.Monitoring results of mosquito-ovitraps placed in different orientations in multi-storey residential areas
Caixiong LIU ; Bin GE ; Haibing ZHANG ; Lin WANG ; Tao YANG ; Yujiao WEI ; Haiying XIE ; Yu ZHANG ; Hongxia LIU ; Juntao SHEN
Shanghai Journal of Preventive Medicine 2025;37(2):109-113
ObjectiveTo find out whether there is any difference in the monitoring results of mosq-ovitraps placed in different orientations in multi-storey residential areas, so as to provide a scientific basis for routine and emergency monitoring of Aedes albopictus with mosq-ovitraps in residential areas. MethodsFrom July 6th to October 26th 2023, one mosquito ovitrap was set up in each of the 4 orientations of east, south, west and north around the buildings in a multi-storey residential area in Jinhui Town, Fengxian District, Shanghai. Data was collected and recorded 72 hours after placement. The chi-square test was used to compare the mosquito ovitrap indices (MOIs) of two independent samples, and the Kruskal⁃Wallis H test was used to compare the MOIs of multiple independent samples. ResultsAfter 16 weeks of surveillance, 997 mosquito ovitraps were recovered, of which 211 were positive, with the mosquito ovitrap index (MOI) of 21.16% and the Aedes albopictus density index of 1.03 mosquitoes·ovitrap-1. The MOIs were higher in September (24.22%) and October (23.96%), and the MOIs in the west, south and north within the two months were all above 20.00%. From July to October, the MOIs in the east, west, south and north were 20.70%, 22.20%, 25.50% and 16.20%, respectively, and the difference in MOIs among the 4 orientations was not statistically significant (χ2=6.647, P=0.084). Stratified analysis by month showed that in August, the south side of the multi-storey residential areas had the highest MOI (31.30%), the north side had the lowest MOI (1.30%), and there was a statistically significant difference in MOI in the east, west, south and north (χ2=25.986, P<0.001). In October, the MOI in the west was the highest (33.30%) and the MOI in the east was the lowest (6.30%), the difference in MOIs of the 4 orientations was statistically significant (χ2=12.007, P=0.007). The MOIs in the south side of the building in the outskirts of the residential area from the 1st week in July to the 4th week in October was lower (19.20%) than that in the south side of the inner building (31.70%), and the difference in MOI was statistically significant (χ2=5.118, P=0.024). ConclusionThe study of MOI in different orientations in a multi-storey residential area is a preliminary exploration based on field work, and the results show that there is a difference in MOIs in different orientations during the peak breeding period of mosquitoes. Further indicators such as temperature, humidity and wind speed in different orientations can be collected to explore the influencing factors of MOIs.

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