Objective To analyze the factors influencing the occupational health literacy (OHL) level among workers in key industries from the perspectives of both individual workers and enterprises. Methods A total of 32 336 front-line workers from 12 key industries in the secondary industry in Guangdong Province were selected as the research subjects by a stratified cluster random sampling method. Their OHL level was investigated using Occupational Health Literacy Questionnaire of National Key Populations, and the influencing factors were analyzed. Results The OHL level of the research subjects was 48.5%. The OHL level of the research subjects in four dimensions from high to low was basic knowledge of occupational health protection, occupational health practice and behavior, legal knowledge of occupational health, and basic skills of occupational health protection (80.7%, 61.2%, 48.3% and 29.5%, respectively). The multivariable logistic regression analysis showed that the OHL level of female workers was lower than that of males (P<0.05). Lower OHL was also associated with older age, lower education level, lower personal monthly income of workers (all P<0.01). The workers with length of service < 3 years and ≥ 20 years had lower OHL level than those with length of service 3-<10 years and 10-<20 years, respectively (all P<0.05). Workers in larger enterprises had higher OHL levels (all P<0.01). The OHL level of workers in the sixth category of industries with occupational injuries had higher occupational injury risks than those in the third and fourth categories (all P<0.05). The OHL levels of workers in state-owned enterprises, private enterprises, foreign-funded enterprises, and other enterprises were higher than that of workers in public institutions (all P<0.05). Conclusion The influencing factors of workers′ OHL in key industries of the secondary industry include individual factors (gender, age, education level, personal monthly income, length of service) and enterprise factors (enterprise size, enterprise nature and industry injury risk category). Female, older workers, those with lower education or income, and those with short length of service represent priority groups for OHL interventions, while small and micro enterprises are priority units for future workplace health promotion intervention.

Primary ciliary dyskinesia (PCD) is a genetically heterogeneous disorder characterized by impaired motility of cilia and flagella. Mutations in cilia- and flagella-associated protein 300 ( CFAP300 ) are associated with human PCD and male infertility; however, the underlying pathogenic mechanisms remain poorly understood. In a consanguineous Chinese family, we identified a homozygous CFAP300 loss-of-function variant (c.304delC) in a proband presenting with classical PCD symptoms and severe sperm abnormalities, including dynein arm deficiency and acrosomal malformation, as confirmed by transmission electron microscopy (TEM). Histological analysis revealed multiple morphological abnormalities of the sperm flagella in CFAP300 -mutant individual, whereas immunofluorescence demonstrated markedly reduced CFAP300 expression in the spermatozoa of the proband. Furthermore, tandem mass tag (TMT)-based quantitative proteomics showed that the CFAP300 mutation reduced key spermatogenesis proteins (e.g., sperm flagellar 2 [SPEF2], solute carrier family 25 member 31 [SLC25A31], and A-kinase anchoring protein 3 [AKAP3]) and mitochondrial ATP synthesis factors (e.g., SLC25A31, cation channel sperm-associated 3 [CATSPER3]). It also triggered abnormal increases in autophagy-related proteins and signaling mediator phosphorylation. These molecular alterations are likely to contribute to progressive deterioration of sperm ultrastructure and function. Notably, successful pregnancy was achieved via intracytoplasmic sperm injection (ICSI) using the proband's sperm. Overall, this study expands the known CFAP300 mutational spectrum and offers novel mechanistic insights into its role in spermatogenesis.
Humans ; Male ; Infertility, Male/pathology* ; Acrosome/pathology* ; Sperm Tail/pathology* ; Pedigree ; Spermatozoa ; Adult ; Loss of Function Mutation ; Ciliary Motility Disorders/genetics* ; Spermatogenesis/genetics* ; Female

Enamel demineralization, the formation of white spot lesions, is a common issue in clinical orthodontic treatment. The appearance of white spot lesions not only affects the texture and health of dental hard tissues but also impacts the health and aesthetics of teeth after orthodontic treatment. The prevention, diagnosis, and treatment of white spot lesions that occur throughout the orthodontic treatment process involve multiple dental specialties. This expert consensus will focus on providing guiding opinions on the management and prevention of white spot lesions during orthodontic treatment, advocating for proactive prevention, early detection, timely treatment, scientific follow-up, and multidisciplinary management of white spot lesions throughout the orthodontic process, thereby maintaining the dental health of patients during orthodontic treatment.
Humans ; Consensus ; Dental Caries/etiology* ; Dental Enamel/pathology* ; Tooth Demineralization/etiology* ; Tooth Remineralization

OBJECTIVE: Burning solid cooking fuel contributes to household air pollution and is associated with frailty. However, how solid cooking fuel use contributes to the development of frailty has not been well illustrated. METHODS: This study recruited 8,947 participants aged ≥ 45 years from the China Health and Retirement Longitudinal Study, 2011-2018. Group-based trajectory modeling was employed to identify frailty trajectories. Multinomial logistic regression was used to assess the association between solid cooking fuel use and frailty trajectories. Population-attributable fractions were used to estimate the frailty burden from solid fuel use. RESULTS: We identified three frailty trajectories: low-stable ( n = 5,789), moderate-increasing ( n = 2,603), and fast-increasing ( n = 555). Solid fuel use was associated with higher odds of being in the moderate-increasing ( OR: 1.24, 95% CI: 1.08-1.42) and fast-increasing ( OR: 1.48, 95% CI: 1.14-1.92) trajectories. These associations were strengthened by longer solid fuel use ( P for trend < 0.001). Switching to clean fuel significantly reduced the risk of being in these trajectories compared with persistent solid fuel users. Without solid fuel, 8% of moderate- and 19% of fast-increasing trajectories demonstrated frailty development like the low-stable group. CONCLUSION Solid cooking fuel use is associated with frailty trajectories in middle-aged and older Chinese populations.
Humans ; China/epidemiology* ; Cooking ; Male ; Female ; Middle Aged ; Aged ; Air Pollution, Indoor/adverse effects* ; Frailty/etiology* ; Longitudinal Studies ; Cohort Studies

ObjectiveTo analyze the current occupational health literacy (OHL) level and its influencing factors among drivers in transportation industry. Methods A total of 880 drivers of taxi companies, passenger transport companies, freight companies and online booking companies were selected as the research subjects using the judgment sampling method. The Occupational Health Literacy Questionnaire of National Key Populations was used to conduct a survey on their OHL levels via online questionnaires, and the influencing factors of OHL were analyzed. Results The OHL level of the research subjects was 54.32% (478/880). The OHL levels in the dimensions of occupational health legal knowledge, basic knowledge of occupational health protection, basic skills of occupational health protection, healthy working style and behavior were 55.34%, 79.55%, 58.30% and 46.25%, respectively. The results of the multivariate logistic regression analysis showed that the OHL levels of drivers in passenger transport and freight companies were higher than that in taxi companies (all P<0.01). The OHL levels of drivers in private enterprises, foreign-funded enterprises, and other enterprises were lower than those in state-owned enterprises (all P<0.05). The OHL levels of drivers in large enterprises were lower than that of drivers in micro-enterprises (P<0.05). The OHL levels of drivers worked >5-10 years and >10 years were lower than that of drivers working 1-5 years (all P<0.05). Conclusion There is a considerable room for improvement in the OHL levels of drivers in the transportation industry. The category, economic type, and scale of the employing unit and driving work year of the current position are the main influencing factors of OHL levels.

Objective To investigate the effect of galangin on cardiac remodeling and cardiac func-tion after myocardial infarction(MI).Methods A total of 32 male C57/BL6 mice(8-10 weeks old)were subjected for MI modeling,and finally 24 mice were assigned into control group[sham operation+hydroxycellulose sodium(CMC-Na)],model group(MI+CMC-Na),and experimental group(MI+galangin),with 8 mice in each group.After MI modeling,the mice of the experimen-tal group were given 40 mg/kg galangin by gavage for 4 weeks,and those of the control group and the model group were given the same volume(0.4 ml)of CMC-Na solution.HE staining was used to observe the size of the infarct area.The mRNA levels of inflammatory factors in the heart were detected by qRT-PCR,and protein levels of related signaling pathway proteins were measured with Western blotting.Immunofluorescence(IF)assay was applied to detect the infiltration of in-flammatory cells in the infarct border zone.TUNEL staining was employed to detect cell apoptosis in the infarct border zone.Results At 4 weeks after modeling,larger infarct size,enhanced expression levels of IL-1β,IL-6,TNF-α,p-P65,p-IκBα and Bax,elevated apoptotic rate,decreased cardiac function indicators such as FS and LVEF,and reduced Bcl-2 expression level were observed in the model group than the control group(P＜0.05).The experimental group had sig-nificant smaller myocardial infarct size[(11.64±0.64)％vs(21.84±1.94)％],less CD3 positive T cells[(3.10±0.46)％vs(6.28±0.24)％],F4-80 positive macrophages[(1.98±0.50)％vs(5.35±0.62)％]and LY6G positive neutrophils[(6.33±0.67)％vs(11.33±1.77)％],decreased expression levels of IL-1β,IL-6,TNF-α,p-P65,p-IκBα and Bax,reduced apoptotic rate[(21.45± 1.62)％vs(35.68±0.88)％],and increased FS and LVEF values and Bcl-2 expression level when compared with the model group(P＜0.05).Conclusion Galangin improves myocardial remode-ling and cardiac dysfunction after MI by inhibiting inflammatory response and cell apoptosis.

Surgical operation is the main treatment of oral and maxillofacial tumors.Dysphagia is a common postoperative complication.Swal-lowing disorder can not only lead to mis-aspiration,malnutrition,aspiration pneumonia and other serious consequences,but also may cause psychological problems and social communication barriers,affecting the quality of life of the patients.At present,there is no systematic evalua-tion and rehabilitation management plan for the problem of swallowing disorder after oral and maxillofacial tumor surgery in China.Combining the characteristics of postoperative swallowing disorder in patients with oral and maxillofacial tumors,summarizing the clinical experience of ex-perts in the field of tumor and rehabilitation,reviewing and summarizing relevant literature at home and abroad,and through joint discussion and modification,a group of national experts reached this consensus including the core contents of the screening of swallowing disorders,the phased assessment of prognosis and complications,and the implementation plan of comprehensive management such as nutrition management,respiratory management,swallowing function recovery,psychology and nursing during rehabilitation treatment,in order to improve the evalua-tion and rehabilitation of swallowing disorder after oral and maxillofacial tumor surgery in clinic.

Objective:To compare the consistency of lymphoma multigene detection panels based on next-generation sequencing (NGS) with FISH detection of B-cell lymphoma gene rearrangement.Methods:From January 2019 to May 2023, fusion genes detected by lymphoma-related 413 genes that targeted capture sequencing of 489 B-cell lymphoma tissues embedded in paraffin were collected from Henan Cancer Hospital, and the results were compared with simultaneous FISH detection of four break/fusion genes: BCL2, BCL6, MYC, and CCND1. Consistency was defined as both methods yielding positive or negative results for the same sample. The relationship between fusion mutation abundance in NGS and the positivity rate of cells in FISH was also analyzed.Results:Kappa consistency analysis revealed high consistency between NGS and FISH in detecting the four B-cell lymphoma-related gene rearrangement ( P<0.001 for all) ; however, the detection rates of positive individuals differed for the four genes. Compared with FISH, NGS demonstrated a higher detection rate for BCL2 rearrangement, a lower detection rate for BCL6 and MYC rearrangement, and a similar detection rate for CCND1 rearrangement. No correlation was found between fusion mutation abundance in NGS and the positivity rate of cells in FISH. Conclusions:NGS and FISH detection of B-cell lymphoma gene rearrangement demonstrate overall good consistency. NGS is superior to FISH in detecting BCL2 rearrangement, inferior in detecting MYC rearrangement, and comparable in detecting CCND1 rearrangement.

Objective:To investigate the clinical features,gene mutation profile,efficacy and prognostic factors of primary extranodal diffuse large B-cell lymphoma(EN-DLBCL).Methods:A retrospective analysis was performed for 382 patients with primary EN-DLBCL with complete clinical data who were treated in West China Hospital from January 2013 to January 2023,and their clinical characteristics,gene mutation profile,efficacy and prognostic factors were analyzed.Results:The median age of the 382 patients with EN-DLBCL was 56 (18-89 )years old.The male-to-female ratio was 1.12∶1,and the most common primary sites were gastrointestinal tract (31.7％),Wechsler ring (19. 1％)and breast gland (7.1％).A total of 51 gene mutations were fund,and the most common frequencies of gene mutations were TP53 (32.5％),MYD88 (32.5％),and CD79B (30.0％).The median follow-up was 63 months,and the 5-year progression-free survival (PFS)rate was 74.5％ and the 5-year overall survival (OS)rate was 89.6％. The adverse factors on PFS were as follows:>1 extranodal sites involvement (P<0.001),P53≥50％(P<0.001),hyper double expression(hDEL)of C-myc>50％/Bcl-2>70％(P<0.001).The adverse factors affecting the OS of patients were as follows:>1 extranodal sites involvement (P<0.001),P53≥50％(P<0.001),hDEL(P<0.001). Chemotherapy combined with local radiotherapy could improve PFS (P=0.041)and OS (P=0.003),while R-CHOP+X (molecule agents as BTKi、HDACi、Lenalidomide)failed to show a significant difference in PFS (P=0.075)and OS (P=0.767 ).Among the 40 patients who underwent next-generation sequencing at high risk,there was no significant in PFS (P=0.849)and OS (P=0.500)of patients with positive MYD88 and/or CD79B mutations (MCD subtype)treated with BTKi and patients with negative MYD88 and CD79B mutations.Conclusion:Primary EN-DLBCL can involve multiple organs or tissue sites.TP53,MYD88,and CD79B are the most common gene mutations.The efficacy of BTKi in patients with positive MCD subtypes at intermediate and high risk is not inferior to that in MCD-negative control patients.

CRISPR/Cas(the clustered regularly interspaced short palindromic repeats-CRISPR associated)system exists in most bacteria and all archaea. It is an important strategy for bacteria and archaea to resist foreign nucleic acid invasion and use for self-defense. The CRISPR/Cas system is a simple, fast, and specific diagnostic tool, which is widely used in agriculture, industry, animal husbandry, and medicine. This article mainly introduces and discusses recently advantages and limitations of biosensors combining CRISPR/Cas system with fluorescence, visualization and surface enhanced raman related technologies, as well as future research directions.
Animals ; CRISPR-Cas Systems ; Bacteria/genetics* ; Archaea