Background Work-related musculoskeletal disorders (WMSDs) are a major occupational health concern, particularly among workers exposed to adverse ergonomic conditions. Manganese production involves heavy physical demands, yet research on WMSDs among manganese workers remains limited. Objective To investigate the prevalence and influencing factors of WMSDs among manganese workers in a manganese enterprise in Guangxi. Methods A cross-sectional survey was conducted from May to June 2024 on workers at a manganese factory in Guangxi. The Chinese Musculoskeletal Disorders Questionnaire was used to collect information on demographic characteristics, distribution of musculoskeletal symptoms, and work-related exposures. χ² test was applied to compare differences in positive WMSDs rates across groups, and logistic regression analysis was performed to identify associated factors. Results A total of 1476 workers were enrolled in the study after pre-determined inclusion and exclusion criteria. The overall prevalence of WMSDs was 34.15%. The most commonly affected body regions were the lower back (17.28%), neck (16.67%), and shoulders (13.82%). The results of logistic regression analysis indicated that female, older age, and education level of college or above were associated with a higher risk of WMSDs (P<0.05). Awkward working postures were significantly associated with WMSDs in corresponding body regions; in particular, awkward postures of the neck, upper limbs, trunk, and lower limbs were related to an increased risk of WMSDs in multiple body sites (P<0.05). In addition, poor lighting conditions, high workplace temperature, frequent or sustained arm support during work, and high job demands were associated with an increased risk of overall or site-specific WMSDs (P<0.05). Conclusion The high prevalence of WMSDs among manganese workers is closely associated with demographic characteristics, working postures, and work environment and organizational factors. Targeted ergonomic interventions focusing on high-risk body regions and key ergonomic exposures are warranted to reduce the risk of WMSDs among manganese workers.

Protein tyrosine phosphatase nonreceptor type 2 (PTPN2) is a promising target for sensitizing solid tumors to immune checkpoint blockades. However, the highly polar active sites of PTPN2 hinder drug discovery efforts. Leveraging small interfering RNA (siRNA) technology, we developed a novel glutathione-responsive nano-platform HPssPT (HA/PEIss@siPtpn2) to silence PTPN2 and enhance immunotherapy efficacy in hepatocellular carcinoma (HCC). HPssPT showed potent transfection and favorable safety profiles. PTPN2 deficiency induced by HPssPT amplified the interferon γ signaling in HCC cells by increasing the phosphorylation of Janus-activated kinase 1 and signal transducer and activator of transcription 1, resulting in enhanced antigen presentation and T cell activation. The nano-platform was also able to promote the M1-like polarization of macrophages in vitro. The unique tropism of HPssPT towards tumor-associated macrophages, facilitated by hyaluronic acid coating and CD44 receptor targeting, allowed for simultaneous reprogramming of both tumor cells and tumor-associated macrophages, thereby synergistically reshaping tumor microenvironment to an immunostimulatory state. In HCC, colorectal cancer, and melanoma animal models, HPssPT monotherapy provoked robust antitumor immunity, thereby sensitizing tumors to PD-1 blockade, which provided new inspiration for siRNA-based drug discovery and tumor immunotherapy.

JMJD1C (Jumonji Domain Containing 1C), a member of the lysine demethylase 3 (KDM3) family, is universally required for the survival of several types of acute myeloid leukemia (AML) cells with different genetic mutations, representing a therapeutic opportunity with broad application. Yet how JMJD1C regulates the leukemic programs of various AML cells is largely unexplored. Here we show that JMJD1C interacts with the master hematopoietic transcription factor RUNX1, which thereby recruits JMJD1C to the genome to facilitate a RUNX1-driven transcriptional program that supports leukemic cell survival. The underlying mechanism hinges on the long N-terminal disordered region of JMJD1C, which harbors two inseparable abilities: condensate formation and direct interaction with RUNX1. This dual capability of JMJD1C may influence enhancer-promoter contacts crucial for the expression of key leukemic genes regulated by RUNX1. Our findings demonstrate a previously unappreciated role for the non-catalytic function of JMJD1C in transcriptional regulation, underlying a mechanism shared by different types of leukemias.
Core Binding Factor Alpha 2 Subunit/genetics* ; Humans ; Leukemia, Myeloid, Acute/pathology* ; Jumonji Domain-Containing Histone Demethylases/chemistry* ; Gene Expression Regulation, Leukemic ; Oxidoreductases, N-Demethylating/genetics* ; Cell Line, Tumor

This document targets digital human metabolic chamber platforms and specifies construction standards and testing protocols covering the full lifecycle of " build-test-operate." It encompasses chamber engineering and environmental control, digital platform and cybersecurity architecture, metabolic measurement and multimodal data acquisition, as well as quantitative system performance and data quality indicators with verifiable acceptance tests. By standardizing architecture, interfaces, and quality control, the specification enables multicenter data interoperability and harmonized quality management, providing high-quality, verifiable, and traceable infrastructure to support precision metabolism research and clinical translation in China.

The strategy of pelvic lymph node dissection in patients with localized intermediate- and high-risk prostate cancer（PCa）has been one of the research hotspots in recent years. This review synthesizes recent progress in clinical，diagnostic imaging and immunological aspects of pelvic lymph node dissection.It is found that the detection rate of metastatic lymph nodes in patients with localized intermediate-risk PCa is relatively low，and the survival benefit after dissection is not significant. PSMA PET/CT examination can be used instead of lymph node dissection for staging. Extended lymph node dissection in patients with localized high-risk PCa can achieve a higher detection rate of metastatic lymph nodes and possible survival benefits. However，excessive lymph node dissection can weaken the response ability to immunotherapy. The strategy for pelvic lymph node dissection in patients with localized intermediate-high-risk PCa needs further study.

Objective To observe the characteristics of local spontaneous brain activity in patients with mild traumatic brain injury(mTBI)in acute stage,and to explore the pathogenesis of the acute stage.Methods From July 2021 to June 2022,38 patients with acute mTBI who were admitted to the Department of Emergency and Department of Bone and Traumatology,the First Affiliated Hospital of Baotou Medical Col-lege,Inner Mongolia University of Science and Technology were selected as the mTBI group,and 39 healthy patients matching gender and age in the community were selected as the control group.Magnetic resonance da-ta and clinical assessment scale data were collected to compare the differences of low-frequency amplitude(ALFF)and local consistency(ReHo)of brain activity between the two groups,and to extract the ALFF and ReHo values of brain areas with significant differences between the two groups for correlation analysis.The ALFF and ReHo values of the significantly different brain areas were evaluated by receiver operating charac-teristic(ROC)curves to distinguish the diagnostic efficacy of the two groups.Results In the mTBI group,the ALFF value of the right caudate nucleus and the right supplementary motor area was significantly de-creased,the ReHo value of the left dorsolateral superior frontal gyrus was increased,and the ReHo value of the right orbital inferior frontal gyrus was decreased(P＜0.05).In the mTBI group,the ReHo value of left dorsolateral superior frontal gyrus was negatively correlated with self—rating anxiety scale(SAS)scores after trauma,and positively correlated with abstract and orientation scores(P＜0.05),while the ALFF value of the right supplementary motor area was positively correlated with named scores(P＜0.05).The ALFF value of the right caudate nucleus and the right supplementary motor area,the ReHo value of the left dorsolateral su-perior frontal gyrus and the right orbital inferior frontal gyrus were more effective in distinguishing them,and the area under the ROC curve were 0.749,0.760,0.794,0.798,respectively(P＜0.05).Conclusion The ab-normal changes of local spontaneous brain activity in the right caudate nucleus,the right supplementary motor area,the left dorsolateral superior frontal gyrus and the right orbital inferior frontal gyrus may be related to the neuropathological mechanism of cognitive impairment and anxiety symptoms in early mTBI patients.

Objective To analyze the auxiliary diagnostic effect of oral cone beam computed tomography(CBCT)in root canal treatment of flight personnel.Methods Eighty flight personnel who underwent root canal treatment in Qingdao Special Service Rehabilitation Center of the Navy from February 2020 to February 2022 were enrolled in this study.All the patients received X-ray examination and oral CBCT.The number of detected root canals,root canal localization,and root canal treatment were analyzed.Results There were 235 root canals in the 80 patients.The detection rate of oral CBCT was significantly higher than that of X-ray examination(94.47%vs 87.66%,P<0.05).A total of 206 root canals were detected by both detection methods,and the Kappa value for consistency in the number of root canals detected was 0.643(P<0.05).The successful rate of root canal negotiation assisted by oral CBCT was significantly higher than that of X-ray examination(90.64%vs 82.98%,P<0.05).Conclusion Oral CBCT can effectively assist in the detection of complex root canals,increase the number of detected root canals and assist in the location of the root canals,check the calcification of root canals,and guide root canal negotiation,which provide a guarantee for complex root canal treatment of flight personnel.

Objective To evaluate the reliability,validity,and feasibility of the diagnostic scale for toxic pathogen syndrome in heart failure(HF),and to verify its reliability and effectiveness in clinical diagnosis.Methods A cross-sectional study was conducted.Patients with HF who visited four hospitals,including Dongzhimen Hospital,Beijing University of Chinese Medicine,from March 1st to September 30th,2024 were selected.General information of the patients,including gender,age,smoking history,drinking history,and comorbidities,was collected.Cronbach's α coefficient,split-half reliability,and test-retest reliability were used to evaluate the reliability of the scale.Surface validity,discriminant validity,and structural validity were used to assess the validity of the scale.Acceptance rate,completion rate,and completion time were used to evaluate the feasibility.Results A total of 600 patients with HF meeting the research criteria were included,including 290 males and 310 females,with a median(IQR)age of 66.50(58.00,70.00)years.Internal consistency reliability:the Cronbach's α coefficients of the total scale and the four dimensions were all greater than 0.6,indicating a good consistency among the items of the scale.The Spearman-Brown coefficients of the total scale and the four dimensions were all greater than 0.7,indicating good stability and homogeneity within the scale.External consistency reliability:the Kappa coefficients of the total scale and the four dimensions were all greater than 0.7,indicating good external consistency of the scale.Discriminant validity evaluation:patients were divided into the toxic pathogen syndrome group(n=180)and the non-toxic pathogen syndrome group(n=420).There were no statistically significant differences in gender,age,smoking history,drinking history,and comorbidities between the two groups(P>0.05).The scores of the two groups were evaluated using the diagnostic scale for the toxic pathogen syndrome in HF.The toxic pathogen syndrome group had higher scores in all four dimensions and the total scale than the non-toxic pathogen syndrome group(P<0.01),indicating good discriminant validity of the scale.Structural validity assessment:principal component analysis was used to extract 28 factors,and a total of 7 common factors were extracted,with a total variance contribution rate of 60.554%.The absolute values of the loadings of each item were basically greater than 0.5,and the commonalities of the corresponding dimensions ranged from 52.1%to 96.5%,indicating good structural validity of the scale.The acceptance rate of the scale in this evaluation was 100%,the completion rate was 100%,and the average completion time was between 6 and 8 minutes,indicating good feasibility of the scale.Conclusion The diagnostic scale for the toxic pathogen syndrome in HF has good reliability,validity,and feasibility.

Objective To evaluate the reliability,validity,and feasibility of the diagnostic scale for toxic pathogen syndrome in heart failure(HF),and to verify its reliability and effectiveness in clinical diagnosis.Methods A cross-sectional study was conducted.Patients with HF who visited four hospitals,including Dongzhimen Hospital,Beijing University of Chinese Medicine,from March 1st to September 30th,2024 were selected.General information of the patients,including gender,age,smoking history,drinking history,and comorbidities,was collected.Cronbach's α coefficient,split-half reliability,and test-retest reliability were used to evaluate the reliability of the scale.Surface validity,discriminant validity,and structural validity were used to assess the validity of the scale.Acceptance rate,completion rate,and completion time were used to evaluate the feasibility.Results A total of 600 patients with HF meeting the research criteria were included,including 290 males and 310 females,with a median(IQR)age of 66.50(58.00,70.00)years.Internal consistency reliability:the Cronbach's α coefficients of the total scale and the four dimensions were all greater than 0.6,indicating a good consistency among the items of the scale.The Spearman-Brown coefficients of the total scale and the four dimensions were all greater than 0.7,indicating good stability and homogeneity within the scale.External consistency reliability:the Kappa coefficients of the total scale and the four dimensions were all greater than 0.7,indicating good external consistency of the scale.Discriminant validity evaluation:patients were divided into the toxic pathogen syndrome group(n=180)and the non-toxic pathogen syndrome group(n=420).There were no statistically significant differences in gender,age,smoking history,drinking history,and comorbidities between the two groups(P>0.05).The scores of the two groups were evaluated using the diagnostic scale for the toxic pathogen syndrome in HF.The toxic pathogen syndrome group had higher scores in all four dimensions and the total scale than the non-toxic pathogen syndrome group(P<0.01),indicating good discriminant validity of the scale.Structural validity assessment:principal component analysis was used to extract 28 factors,and a total of 7 common factors were extracted,with a total variance contribution rate of 60.554%.The absolute values of the loadings of each item were basically greater than 0.5,and the commonalities of the corresponding dimensions ranged from 52.1%to 96.5%,indicating good structural validity of the scale.The acceptance rate of the scale in this evaluation was 100%,the completion rate was 100%,and the average completion time was between 6 and 8 minutes,indicating good feasibility of the scale.Conclusion The diagnostic scale for the toxic pathogen syndrome in HF has good reliability,validity,and feasibility.

This document targets digital human metabolic chamber platforms and specifies construction standards and testing protocols covering the full lifecycle of " build-test-operate." It encompasses chamber engineering and environmental control, digital platform and cybersecurity architecture, metabolic measurement and multimodal data acquisition, as well as quantitative system performance and data quality indicators with verifiable acceptance tests. By standardizing architecture, interfaces, and quality control, the specification enables multicenter data interoperability and harmonized quality management, providing high-quality, verifiable, and traceable infrastructure to support precision metabolism research and clinical translation in China.