BACKGROUND:Studies have demonstrated that postmenopausal osteoporosis is related to female reproductive characteristics and exercise diets,but few studies have demonstrated whether female reproductive characteristics and exercise diets have an effect on vitamin D in postmenopausal women. OBJECTIVE:To investigate the relationship of vitamin D levels with female reproductive characteristics and exercise diets and their influencing factors in postmenopausal women in Beijing. METHODS:Totally 727 postmenopausal women with an age range of 46-75 years old who received on-site questionnaires in 17 communities of Beijing from September 2017 to May 2018 were selected as the study subjects,and the questionnaires included the subjects'basic information and history of menstruation,menopause,pregnancy,and exercise diet.An electrochemiluminescence immunoassay analyzer and its auxiliary reagents were used to determine 25-(OH)D levels.Bone mineral density and T values of the lumbar spine(L1-L4,whole)and both hips(femoral neck,whole)were determined using a dual-energy X-ray bone mineral density detector.The correlation of vitamin D with reproductive characteristics and exercise diet was observed,as well as the influencing factors of vitamin D were analyzed. RESULTS AND CONCLUSION:There were 136 cases(18.7%)in the vitamin D normal group,389 cases(53.5%)in the vitamin D insufficient group,and 202 cases(27.8%)in the vitamin D deficient group.The mean vitamin D level was(15.60±5.85)ng/mL.With the increase of vitamin D level,the bone mineral density value and T value of different parts of the body also increased.Vitamin D level was positively correlated with age at menarche,days of menstrual duration,stage of menopause,activity,diet type,and dietary preference(P<0.05);was negatively correlated with menstrual cycle,age at menopause,and number of childbearing(P<0.05);and had no correlation with age at first conception and number of pregnancies(P>0.05).The results of multifactorial ordered Logistic regression analyses showed that there was a positive correlation between the frequency of drinking dairy products and vitamin D level(P<0.05),and dairy products were a protective factor for vitamin D level.To conclude,vitamin D levels are generally insufficient and bone mineral density values are generally low in postmenopausal women in Beijing.Vitamin D levels are correlated with some reproductive characteristics and exercise diets,and drinking dairy products is a protective factor.Therefore,it is possible to intervene in the dietary situation of postmenopausal women by means of health education about osteoporosis and by increasing vitamin D levels in order to increase bone density values and reduce the prevalence of osteoporosis in the postmenopausal period.

Objective To investigate the relationship of serum programmed cell death 4(PDCD4)and a disintegrin and metalloprotease 10(ADAM10)levels with short-term prognosis in elderly patients with large artery atherosclerosis(LAA)-related acute cerebral infarction(AIS).Methods A total of 122 elderly patients with LAA-related AIS admitted in Nanyang Second People's Hos-pital during April 2022 and April 2024 were retrospectively enrolled and served as observation group.According to their neurological function,they were categorized into mild,moderate and se-vere subgroups(29,68 and 25 cases,respectively),and based on their prognosis,they were as-signed into good and poor prognosis subgroups(72 and 50 cases,respectively).Another 125 indi-viduals taking physical examination in above hospital during the same period were included as the control group.ELISA was applied to detect serum PDCD4 and ADAM10 levels.Multivariate logis-tic regression analysis was employed to investigate the relationship of above two indicators with short-term prognosis of LAA-related AIS patients.ROC curves were plotted to analyze the predic-tive value of the indicators for short-term prognosis of the patients.Results The serum PDCD4 and ADAM10 levels were significantly higher in the observation group than the control group(P＜0.01),in the moderate and severe subgroups than the mild subgroups(P＜0.05),and in the severe than the moderate subgroups(P＜0.05).Larger proportions of severe neurologic deficit and hypertension,and higher Hcy level were observed in the poor than the good prognosis sub-groups(P＜0.01).PDCD4 and ADAM10 were correlated with poor short-term prognosis in pa-tients with LAA-related AIS(OR=2.759,95％CI:1.479-5.146,P=0.001;OR=2.818,95％CI:1.559-5.093,P=0.001).The AUC value of PDCD4 and ADAM10 alone and their combination in predicting poor short-term prognosis was 0.840,0.864,and 0.935,respectively,and the combina-tion showed better predictive performance than alone(Z=2.687,2.008,P＜0.05).Conclusion Serum PDCD4 and ADAM10 levels are higher in patients with LAA-related AIS.Their combina-tion showed good predictive efficacy for poor short-term prognosis of these patients.

In recent years, immunotherapy has become another important treatment for non-small cell lung cancer (NSCLC) after surgery, radiotherapy, chemotherapy and targeted therapy. As an emerging non-invasive tool, PET/CT radiomics provides a new way for precise diagnosis and treatment of NSCLC by quantitatively analyzing the metabolic and structural characteristics of tumors, demonstrating significant promise for applications in NSCLC immunotherapy. This article aims to review the research progress of PET/CT radiomics in NSCLC immunotherapy and to explore its potential value in predicting biomarkers, therapeutic efficacy, adverse effects, and evaluating prognosis.

Objective To analyze the biomechanical responses after small incision lenticule extraction(SMILE)based on personalized biomechanical parameters of the human eye.Methods Through the results from the correlation analysis between corneal stromal elastic modulus and biomechanical parameters,the cornea elastic modulus was predicted and the material parameters were obtained.Based on clinical measurement data,52 personalized myopic human eye models were reconstructed to analyze the corneal biomechanical response after SMILE.Results The biomechanical response of the cornea varied from patients,and the vertex displacement and stress of the corneal surface increased or decreased after SMILE.On average,when residual stromal thickness(RST)ranged from 278 μm to 332 μm and IOP was 16-20 mmHg(1 mmHg=0.133 kPa),the change of vertex displacement and stress on the corneal surface after SMILE were less than those under IOP=11-16 mmHg.Under RST＞332 μm and IOP=11-16 mmHg,the corneal biomechanics was relatively stable.In addition,the corrected diopters of patients increased,and the deformation of corneal surface after SMILE was more drastic.Conclusions RST and IOP are important factors influencing corneal biomechanics.The material parameters of corneal tissues were predicted based on corneal biomechanical parameters.The cutting profiles and surgical parameters of SMILE may be optimized through analyzing the surgical effect after refractive surgery by reconstructing personalized finite element model of human eyes.

Objective To analyze the biomechanical responses after small incision lenticule extraction(SMILE)based on personalized biomechanical parameters of the human eye.Methods Through the results from the correlation analysis between corneal stromal elastic modulus and biomechanical parameters,the cornea elastic modulus was predicted and the material parameters were obtained.Based on clinical measurement data,52 personalized myopic human eye models were reconstructed to analyze the corneal biomechanical response after SMILE.Results The biomechanical response of the cornea varied from patients,and the vertex displacement and stress of the corneal surface increased or decreased after SMILE.On average,when residual stromal thickness(RST)ranged from 278 μm to 332 μm and IOP was 16-20 mmHg(1 mmHg=0.133 kPa),the change of vertex displacement and stress on the corneal surface after SMILE were less than those under IOP=11-16 mmHg.Under RST＞332 μm and IOP=11-16 mmHg,the corneal biomechanics was relatively stable.In addition,the corrected diopters of patients increased,and the deformation of corneal surface after SMILE was more drastic.Conclusions RST and IOP are important factors influencing corneal biomechanics.The material parameters of corneal tissues were predicted based on corneal biomechanical parameters.The cutting profiles and surgical parameters of SMILE may be optimized through analyzing the surgical effect after refractive surgery by reconstructing personalized finite element model of human eyes.

Objective To investigate the relationship of serum programmed cell death 4(PDCD4)and a disintegrin and metalloprotease 10(ADAM10)levels with short-term prognosis in elderly patients with large artery atherosclerosis(LAA)-related acute cerebral infarction(AIS).Methods A total of 122 elderly patients with LAA-related AIS admitted in Nanyang Second People's Hos-pital during April 2022 and April 2024 were retrospectively enrolled and served as observation group.According to their neurological function,they were categorized into mild,moderate and se-vere subgroups(29,68 and 25 cases,respectively),and based on their prognosis,they were as-signed into good and poor prognosis subgroups(72 and 50 cases,respectively).Another 125 indi-viduals taking physical examination in above hospital during the same period were included as the control group.ELISA was applied to detect serum PDCD4 and ADAM10 levels.Multivariate logis-tic regression analysis was employed to investigate the relationship of above two indicators with short-term prognosis of LAA-related AIS patients.ROC curves were plotted to analyze the predic-tive value of the indicators for short-term prognosis of the patients.Results The serum PDCD4 and ADAM10 levels were significantly higher in the observation group than the control group(P＜0.01),in the moderate and severe subgroups than the mild subgroups(P＜0.05),and in the severe than the moderate subgroups(P＜0.05).Larger proportions of severe neurologic deficit and hypertension,and higher Hcy level were observed in the poor than the good prognosis sub-groups(P＜0.01).PDCD4 and ADAM10 were correlated with poor short-term prognosis in pa-tients with LAA-related AIS(OR=2.759,95％CI:1.479-5.146,P=0.001;OR=2.818,95％CI:1.559-5.093,P=0.001).The AUC value of PDCD4 and ADAM10 alone and their combination in predicting poor short-term prognosis was 0.840,0.864,and 0.935,respectively,and the combina-tion showed better predictive performance than alone(Z=2.687,2.008,P＜0.05).Conclusion Serum PDCD4 and ADAM10 levels are higher in patients with LAA-related AIS.Their combina-tion showed good predictive efficacy for poor short-term prognosis of these patients.

In recent years, immunotherapy has become another important treatment for non-small cell lung cancer (NSCLC) after surgery, radiotherapy, chemotherapy and targeted therapy. As an emerging non-invasive tool, PET/CT radiomics provides a new way for precise diagnosis and treatment of NSCLC by quantitatively analyzing the metabolic and structural characteristics of tumors, demonstrating significant promise for applications in NSCLC immunotherapy. This article aims to review the research progress of PET/CT radiomics in NSCLC immunotherapy and to explore its potential value in predicting biomarkers, therapeutic efficacy, adverse effects, and evaluating prognosis.

Objective To investigate the prevalence and molecular characteristics of Anaplasma infections in sheep and goats in Anhui Province in 2020, so as to provide insights into ovine anaplasmosis prevention and control. Methods A total of 355 fresh blood samples were collected from 7 sheep and goat farms in Linquan County of Fuyang City, Lixin County of Bozhou City, Yu'an District of Lu'an City, Wangjiang County of Anqing City, Nanling County of Wuhu City, and Tianchang City and Fengyang County of Chuzhou City in Anhui Province from June to December 2020. A. bovis and A. phagocytophilum 16S ribosomal RNA (16S rRNA) gene, A. ovis major surface protein 4 (MSP4) gene and A. capra citric acid synthase (gltA) gene were amplified using PCR assay in all blood samples, and the prevalence of A. bovis, A. phagocytophilum, A. ovis and A. capra infections was calculated in sheep and goats. In addition, the positive amplification products were sequenced and subjected to genetic evolutionary analysis. Results The overall prevalence of Anaplasma infections was 17.5% (62/355) in sheep and goats in Anhui Province, and the prevalence of A. bovis, A. phagocytophilum, A. ovis and A. capra infections was 2.8% (10/355), 2.5% (9/355), 2.5% (9/355), and 7.0% (25/355), while the prevalence of A. bovis and A. phagocytophilum, A. phagocytophilum and A. ovis, A. phagocytophilum and A. capra and A. bovis, A. phagocytophilum and A. ovis co-infections was 0.8% (3/355), 1.1% (4/355), 0.3% (1/355) and 0.3% (1/355), respectively. No Anaplasma was detected in the sheep and goat farms in Fengyang County, while at least three Anaplasma species were detected in other sheep and goat farms, with co-infections of multiple Anaplasma species identified. The prevalence of Anaplasma infections was 14.7% (24/163) in goats and 19.8% (38/192) in sheep, and the prevalence of Anaplasma infections was 31.0% (31/100) in goats and sheep under 6 months of age, and 12.2% (31/255) in goats and sheep at ages of 6 months and older, respectively. A. bovis, A. phagocytophilum, A. ovis and A. capra were identified in sheep and goats of different breeds and ages. Conclusions Multiple Anaplasma species infections were commonly prevalent in goats and sheep in Anhui Province in 2020, notably A. phagocytophilum, A. ovis and A. capra, which have zoonotic risks. Improved surveillance and prevention and control of Anaplasma infections are required in sheep and goats in Anhui Province.

In 2009,the World Health Organization included snakebite on the list of neglected tropical diseases,acknowledging it as a common occupational hazard for farmers,plantation workers,and others,causing tens of thousands of deaths and chronic physical disabilities every year.This guideline aims to provide practical information to help clinical professionals evaluate and treat snakebite victims.These recommendations are based on clinical experience and clinical research evidence.This guideline focuses on the following topics:snake venom,clinical manifestations,auxiliary examination,diagnosis,treatments,and prevention.