Based on spleen deficiency-phlegm dampness as the core pathogenesis of obesity， and integrating recent advances in modern medicine regarding the key role of immune inflammation in obesity， this paper proposes a multidimensional pathogenic network of "obesity-spleen deficiency-phlegm dampness-immune imbalance". Various traditional Chinese medicine （TCM） herbs that strengthen the spleen， regulate qi， and resolve phlegm and dampness can treat obesity by improving spleen-stomach transport and transformation， promoting water-damp metabolism， and regulating immune homeostasis. This highlights immune inflammation as an important entry point to elucidate the TCM concepts of "spleen deficiency-phlegm dampness" and the therapeutic principle of "strengthening the spleen and eliminating dampness to treat obesity". By systematically analyzing the intrinsic connection between "spleen deficiency generating dampness， internal accumulation of phlegm dampness" and immune dysregulation in obesity， this paper aims to provide theoretical support for TCM treatment of obesity based on dampness.

With the accelerated global population aging and urbanization, cognitive dysfunction has become a major public health challenge. Epidemiological evidence indicates that long-term exposure to particulate matter and environmental noise are independent risk factors for cognitive decline, and recent studies suggest that their combined exposure may exert a synergistic amplifying effect. This review summarized the progress in epidemiological research on the impacts of particulate matter and noise exposure on cognitive function, specifically focusing on the synergistic effects of their combined exposure. Furthermore, it outlined common biological mechanisms such as neuroinflammation, oxidative stress, and vascular endothelial damage. However, while existing studies have preliminarily revealed the synergistic effects of combined particulate matter and noise exposure on cognitive function, the conclusions remain heterogeneous, and the investigation of underlying mechanisms is still insufficient. Future research should prioritize refined exposure assessment, long-term cohort studies, and specific high-exposure occupational scenarios, and carry out further in-depth investigations, thereby providing a basis for health risk assessment and the development of intervention strategies.

Objective: To investigate the availability and use of child safety seats among children aged 0-3 years, so as to provide the basis for improving riding safety for children. Methods: Parents of children aged 0-3 years in Huangpu District, Shanghai Municipality, were recruited using the stratified multistage random sampling method from May to July 2024. Demographic information, family travel patterns, the use of child safety seat and related health beliefs were collected using questionnaire surveys. Factors affecting the use of child safety seats were identified using a multivariable logistic regression model. Results: Totally 514 valid questionnaires were recovered, with an effective rate of 96.98%. The respondents included 122 fathers (23.74%) and 392 mothers (76.26%), with a median age of 34.00 (interquartile range, 5.00) years. There were 446 families equipping with child safety seats, accounting for 86.77%; and 169 families using child safety seats, accounting for 32.88%. Multivariable logistic regression analysis showed that the parents who had children aged >1-2 years (OR=0.597, 95%CI: 0.366-0.973), travelled 2-4 times per month (OR=0.359, 95%CI: 0.213-0.607) or once per month or less (OR=0.384, 95%CI: 0.202-0.729), and scored high in perceived barrier (OR=0.634, 95%CI: 0.486-0.827) were less likely to use child safety seats; the parents who had children with local household registration (OR=2.506, 95%CI: 1.356-4.633), travelled 5-<10 km (OR=1.887, 95%CI: 1.148-3.101) or ≥10 km (OR=2.319, 95%CI: 1.355-3.967), always wore seat belts (OR=2.342, 95%CI: 1.212-4.524), scored high in perceived susceptibility (OR=1.392, 95%CI: 1.091-1.778) and self-efficacy (OR=1.413, 95%CI: 1.156-1.727) were more likely to use child safety seats. Conclusions Equipping family cars with child safety seats and using them can prevent and reduce traffic injuries among children aged 0-3 years. It is recommended to strengthen publicity to promote the use of child safety seats.

BACKGROUND:Liuwei Dihuang Wan takes"three tonifying and three reducing effects"as its compatibility feature to nourish yin and tonify the kidneys,while Zuogui Wan takes"seeking yin in yang"as its compatibility feature to nourish yin and tonify the kidneys by promoting yang.Both of them belong to the same method of nourishing yin and tonifying the kidneys,and have better curative effects at the symptomatic and cellular molecular levels. OBJECTIVE:To observe the effects of Liuwei Dihuang Wan and Zuogui Wan in bone metabolism,and to explore their mechanism of action in the osteoprotegerin(OPG)/receptor activator of nuclear factor-κB ligand(RANKL)osteoblastic pathway. METHODS:Thirty-two Sprague-Dawley rats were randomized into model,Liuwei Dihuang Wan,Zuogui Wan,and sham operation group,with eight rats in each group.Osteoporosis models were prepared using removal of both ovaries in the first three groups.Starting at 30 days postoperatively,rats in the Liuwei Dihuang Wan group were gavaged with Liuwei Dihuang Wan 1.125 g/kg/d;rats in the Zuoqui Wan group were gavaged with Zuogui Wan 2.25 g/kg/d;and rats in the sham operation group and the model group were gavaged with saline 10 mL/kg/d.After 12 weeks of gavage,the rat tibia was taken to measure bone mineral density.The serum levels of estrogen,bone alkaline phosphatase,and cAMP/cGMP were measured using ELISA,and the expression of OPG/RANKL in the femur was detected using western blot. RESULTS AND CONCLUSION:Compared with the sham operation group,the model group showed a decrease in bone mineral density and levels of estrogen and bone alkaline phosphatase(P＜0.05)and an increase in cAMP/cGMP level(P＜0.05).Compared with the model group,the Liuwei Dihuang Wan group and the Zuogui Wan group significantly increased bone mineral density(P＜0.05)and bone alkaline phosphatase levels(P＜0.05);the Zuogui Wan group significantly decreased cAMP/cGMP levels(P＜0.05)and upregulated OPG expression(P＜0.05);the Liuwei Dihuang Wan group upregulated OPG expression and downregulated RANKL expression(P＜0.05);and both groups were unable to significantly increase estrogen levels(P＞0.05).To conclude,Zuogui Wan,which seeks yin from yang,can effectively increase the expression of OPG but cannot downregulate the expression of RANKL.However,Liuwei Dihuang Wan,which has three tonifying and three reducing effects,can bidirectionally regulate the expression of OPG and RANKL.This result suggests that Liuwei Dihuang Wan can significantly inhibit osteoclastic function compared with Zuogui Wan,and further research is needed to verify this conclusion.

Objective:To construct a preventive maintenance path based on risk control model for medical equipment in the operating room,and analyze its application effect in the management for medical equipment in the operating room.Methods:Based on 7 key factors included equipment characteristics,usage duration,startup frequency,operating efficiency,operator skills,maintenance frequency,and technical support in risk control model,we followed management mode of preventive maintenance,and constructed a preventive maintenance path from six dimensions which included management of equipment application,preventive maintenance and upkeep,predictive maintenance,fault repair,post upkeep,and quality monitoring.A total of 215 used medical equipment in operating room at Xiaolan People's Hospital of ZhongShan from January 2022 to December 2022 were selected,and the equipment during January and December 2022 received maintenance management by using conventional management method,and these during January and December 2023 received maintenance management by using preventive maintenance path method based on risk control model for medical equipment(model management method).The quality of management and operation for equipment between two kinds of management methods were compared.A self-designed questionnaire was adopted to investigate the operators'satisfaction for service quality of equipment in operating rooms.Results:The average standardization degree of using equipment,efficiency of maintenance,timely maintenance,and qualification rate of quality inspection of adopting model management method were respectively(94.43±4.26)%,(97.74±1.53)%,(86.78±6.72)%and(96.48±3.02)%,all of which were higher than those of adopting conventional method(t=22.583,34.738,14.820,18.577,P<0.05).The average rate of starting equipment and self-repair rate of the model management method were significantly higher than those of the conventional method,and the differences were statistically significant(t=10.355,7.624,12.811,P<0.05).The satisfaction scores of operators who used management for adopting model management method were higher than those for adopting conventional management method in applying and managing equipment,preventive upkeep,predictive maintenance,fault repair,post upkeep and quality monitoring,and the differences were statistically significant(t=18.653,22.942,18.752,23.673,40.055,37.120,P<0.05).Conclusion:The preventive maintenance path based on risk control model for medical equipment in operating room can improve the management quality for equipment in operating room,and enhance management effectiveness and operators'satisfaction.

With the advancement of information technology and intelligent systems, smart workplaces have become mainstream, accompanied by a growing workforce engaged in screen-based work. The persistent or prolonged close-up use of computer and visual display terminal (VDT) equipment has significantly increased occupational eye health risks. This paper provides a comprehensive review of common workplace eye disorders (such as visual fatigue and dry eye syndrome) among screen users, analyzes associated risk factors, and proposes management strategies to identify occupational hazards and promote workforce wellness.

Objective:To construct a sizeable naive human Fab phage display antibody library to screen high-affinity specific antibodies in vitro. Methods:Total RNA was extracted from peripheral blood mononuclear cells (PBMCs) of 126 healthy individuals, subsequently reverse-transcribed into cDNA, and used as a template. PCR amplification was performed to obtain the V H from IgG, IgM and light chain κ, λ, separately, with the initial PCR products serving as templates for a second round of PCR. Overlap extension PCR was employed to generate fragments of the κ and λ light chains. These fragments were ligated with the phage vector pNC3, which harbors the variable region 1 of the heavy chain, to construct a recombinant phage plasmid. This plasmid was then electroporated into competent Escherichia Coli TG1 cells to establish a naive human Fab phage display antibody library. One hundred clones were randomly selected for identification and sequencing, and antibody gene polymorphisms were analyzed using the IMGT database and MAFFT software. Recombinant α-hemolysin from Staphylococcus aureus was utilized to screen Fab antibody fragments through biopanning of the antibody library, followed by random selection of phage ELISA-identified clones. The positive clones (antigen A450∶blank control A450≥2.1) were sequenced. Results:Two large naive Fab phage display antibody libraries were successfully constructed, in which the capacity of κ and λ chain antibody libraries were 1.25×10 11 and 1.54×10 11, respectively. The titers for two antibody libraries were 6.04×10 13 CFU/ml and 3.50×10 13 CFU/ml. The positive transformation insertion rates for κ and λ chain antibody libraries were 96% (96/100) and 100% (100/100), respectively. Sequence analysis revealed that all antibody sequences were unique. The amino acid sequences in the skeletal region were relatively conserved. In contrast, significant variations in the length of the complementarity determining region (CDR) were found, and the diversity of amino acid sequence of the complementary determining region was high, especially the CDR3. Analysis using the IMGT database indicated that the sequences exhibited a broad distribution across variable-diversity-joining gene families. After six rounds of panning, specific phage antibodies enrichment targeting α-hemolysin were achieved. A total of 142 monoclonal antibodies were sequenced, yielding 8 distinct Fab antibody sequences. Conclusion:This study successfully constructed two naive human Fab phage display antibody libraries with large capacity and good diversity, which can be used for screening human antibodies for serum epidemiology.

The oropouche virus (OROV) poses a threat to pregnant women and fetuses, potentially causing fetal neurological defects and even stillbirth, which has caused global attention. OROV is an arthropod-borne virus belonging to the Orthobunyavirus genus in the Bunyavirales order, primarily transmitted by arthropods and causing oropouche fever. This article reviews the etiological characteristics, epidemiological distribution, clinical symptoms, detection methods, and prevention strategies of OROV. OROV is prevalent in Central and South America, with a sharp increase in cases reported in Brazil in 2024. The virus's symptoms resemble those of several other arthropod-borne viral diseases, which can lead to misdiagnosis. Currently, there are no specific drugs or vaccines available, and treatment is mainly supportive. Culicoides paraensis and Culex quinquefasciatus are among the significant vectors of OROV. Furthermore, the article analyzes the distribution of Culex quinquefasciatus in China, highlights the risk of imported cases, proposes targeted prevention and control strategies, and underscores the significance of international cooperation in disease prevention and control.

Objective:To investigate the prevalence of asthenopia and dry eye,and to further explore the potential occupational hazard factors,so as to provide a theoretical basis for their prevention and con-trol.Methods:A cross-sectional survey was conducted on the selected respondents.For visual display terminal(VDT)workers in employing organizations such as banks,colleges,and government depart-ments,an online questionnaire independently developed by the research group was used for population surveys.Information including general information,work-related situations,work environment,visual health,and ergonomic factors was collected.The respondents were analyzed according to whether they suffered from asthenopia and dry eye.Relevant factors of asthenopia and dry eye were screened through t-test and Chi-square test.Subsequently,binary Logistic regression analysis was carried out to determine the risk factors of asthenopia and dry eye among the VDT workers.Results:The overall prevalence of as-thenopia was 52.5％(235/448)and dry eye was 36.8％(165/448).There were no significant diffe-rences in the prevalence of asthenopia and dry eye among different genders,age groups,and groups of length of service in VDT work.However,the highest prevalence of dry eye was observed in underweight individuals(42.9％),followed by normal weight(40.6％),overweight(28.0％),and obese indivi-duals(17.4％).There was a significant difference in the prevalence of dry eye among different body mass index(BMI)groups(x2=9.505,P=0.023).The lowest prevalence of asthenopia was observed among securities industry employees(22.6％),while higher rates were found in employees in companies(59.5％)and other employing organizations(68.8％).A significant difference in the prevalence of as-thenopia among different employing organizations(x2=14.832,P=0.022).The result of Logistic re-gression showed that a longer length of service in VDT work(OR=1.006,P＜0.001),a longer dura-tion of VDT after working hours(OR=1.002,P=0.032),a too-bright monitor(OR=2.875,P=0.022),glare during work(OR=1.500,P=0.038),a louder noise in work environment(OR=1.586,P=0.012),work-related musculoskeletal disorders(WMSDs)(OR=4.366,P＜0.001)and other factors were independent risk factors of asthenopia,while wearing frame glasses(OR=0.452,P=0.037)was an independent protective factor.Glare during work(OR=2.198,P＜0.001),WMSDs(OR=2.226,P=0.001)and other factors were independent risk factors of dry eye,while overweight(OR=0.448,P=0.006),obesity(OR=0.228,P=0.032)were independent protective factors of dry eye.Conclusion:The prevalence of asthenopia and dry eye among VDT workers is relatively high,and it is associated with multiple risk factors.During prevention and control,attention should be paid to taking reasonable breaks during work,controlling glare,and strengthening visual health training and promotion.

Objective The purpose of the study is to breed homozygous interferon-γ knockout(IFN-γ-/-)mice and optimize the breeding strategies to achieve continuous and stable reproduction of IFN-γ-/-mice,which could be used as an ideal animal model for fundamental research.Methods Initially,heterozygous IFN-γ knockout(IFN-γ+/-)C57BL/6J mice were used as the parental generation for breeding.Subsequently,3 breeding strategies were employed using the offspring:(1)female heterozygotes mated with male heterozygotes;(2)male homozygotes mated with female heterozygotes;(3)female homozygotes mated with male homozygotes.The number and survival rate of IFN-γ-/-mice were compared across the three breeding strategies to determine the optimal breeding strategy.Under the optimal strategy,the effects of female mating age and diet type on the reproductive performance of IFN-γ-/-mice were further evaluated.Data from the first three litters of 60 IFN-γ-/-female mice,including litter size,number of weaning survivors,and weaning survival rate,were recorded and analyzed.In addition,the effects of dietary supplementation of pregnant mice and environmental optimization measures,such as the provision of shelters,were evaluated.Results Under conditions where the nutritional needs of pregnant mice were adequately met by supplementation with egg yolk and sunflower seeds,mating of female and male IFN-γ-/-mice result ed in a litter size of five to eight IFN-γ-/-mice,demonstrating higher efficiency compared to other breeding strategies.In addition,diet type and mating age significantly influenced female reproductive performance.When 7～9 weeks old female IFN-γ-/-mice were mated to male IFN-γ-/-mice and fed a high-protein breeding diet,litter size(6.9±1.7),weaning survival number(6.5％±2.0％)and weaning survival rate(93.2％±17.8％)were higher than those under other conditions.In addition,providing shelters to prevent fighting between breeding pairs further improved reproductive outcomes.Conclusions By adopting an optimized breeding strategy,combined with a high-protein diet,nutritional supplementation,and standardized mating age management,the breeding efficiency and stability of IFN-γ-/-mice can be significantly improved.This provides a reliable animal model for related research.