Objective: To understand the hydration status and related factors of rural boarding primary school students, so as to provide a scientific basis for drinking water health intervention for primary school students. Methods: In November 2023, a convenience sampling approach was employed to conduct a hydration status survey among 144 boarding students in grades 5 and 6 of a rural primary school in Guangxi. The Duplicate meal method and weighing method were utilized to measure the food derived water intake over three consecutive days. Urine osmolarity of students was measured on site for three days, and a simple physical examination was also carried out. A self administered questionnaire was used to investigate students drinking water literacy, daily water intake, and physical activity levels. Meanwhile, a drinking water literacy survey was conducted among 21 substitute teachers and 144 parents of the boarding students in grades 5 and 6. Logistic regression was used to identify factors associated with students hydration status. Results: The median daily total water intake of students was 2 043.55 mL, and 54.86% of the students did not reach the recommended Adequate Intake (AI). The median food derived water intake was 1 149.24 mL, accounting for 53.94% of the total water intake. Univariate analysis revealed that the daily drinking frequency, daily water intake, and food derived water intake of students were related factors of hydration status ( β =-1.60, -1.01, -0.00, all P <0.05). Multivariate Logistic regression analysis showed that primary school students with a daily drinking frequency of ≥7 times were more likely to maintain an adequate hydration status ( OR =0.28, 95% CI =0.09-0.93, P ＜0.05). Conclusions The water intake from food is the main source of water in the body for boarding primary school students in a certain rural school in Guangxi. Primary school students should increase their water intake frequency appropriately to maintain an adequate hydration status.

This study aimed to investigate the effect of atractylenolide I (Atr-I) on myocardial mitochondrial function in mice with dilated cardiomyopathy (DCM) by regulating the cyclic GMP-AMP synthase (cGAS)/stimulator of interferon genes (STING) pathway. Sixty SPF-grade male cTnT R141W transgenic DCM mice were randomly divided into the DCM group, Atr-I low-dose group (60 mg/kg), Atr-I high-dose group (240 mg/kg), captopril group (0.01 g/kg), and Atr-I high-dose+cGAS/STING pathway activator 5,6-dimethylxanthenone-4-acetic acid (DMXAA) group, with 12 mice in each group. Additionally, 12 male C57BL/6J mice were used as the control group. All mice were administered via oral gavage once daily for 8 weeks. Cardiac function was assessed using the Vevo 770 ultrasound system; myocardial pathology was examined via HE staining; mitochondrial ultrastructure in cardiomyocytes was observed using transmission electron microscopy; the proportion of cardiomyocytes without reduced mitochondrial membrane potential was detected using JC-1 staining; reactive oxygen species (ROS) content in myocardial tissue was measured using 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA) staining; adenosine triphosphate (ATP) content in myocardial tissue was determined using a commercial kit; and Western blot was performed to detect the protein expression levels of mitofusin-2 (MFN2), dynamin-related protein 1 (DRP1), cGAS, STING, interferon-β (IFN-β), CXC chemokine ligand 10 (CXCL10), and interleukin-6 (IL-6) in myocardial tissue. The aim was to observe the effect of Atr-I on myocardial mitochondrial function in DCM mice. The results showed that low- and high-dose Atr-I (60 mg/kg, 240 mg/kg) intervention improved cardiac function, alleviated cardiomyocyte hypertrophy and disordered muscle fiber arrangement, ameliorated mitochondrial ultrastructure in cardiomyocytes, reduced ROS content and the protein expression levels of DRP1, cGAS, STING, IFN-β, CXCL10, and IL-6 in myocardial tissue, and increased the proportion of cardiomyocytes without reduced mitochondrial membrane potential, as well as ATP content and MFN2 protein expression in myocardial tissue. However, DMXAA attenuated the beneficial effects of high-dose Atr-I on myocardial mitochondrial function in DCM mice. In conclusion, Atr-I may improve myocardial mitochondrial function in DCM mice by inhibiting the cGAS/STING pathway.

BACKGROUND:The prevalence of osteoporosis is high in postmenopausal women,but muscle mass,grip strength,and how these factors affect osteoporosis are understudied,and the exact link between them has not been clarified.OBJECTIVE:To investigate the correlation between muscle mass,grip strength,appendicular skeletal muscle index and bone mineral density in postmenopausal women with osteoporosis and to assess the potential values of these indices in predicting and diagnosing postmenopausal osteoporosis.METHODS:Eighty-three postmenopausal women were collected from the outpatient clinic of the Third Affiliated Hospital of Guangzhou University of Chinese Medicine from February 2023 to January 2024.General data were collected.Bone mineral density was detected.T-value,muscle mass of each part,grip strength were recorded.The body mass index and appendicular skeletal muscle index were calculated.The patients were categorized into non-osteoporosis group(n=17)and postmenopausal osteoporosis group(n=66)according to T value and fracture history,and were statistically analyzed accordingly.RESULTS AND CONCLUSION:(1)The body mass,body mass index,bone mineral density of the overall lumbar spine,muscle mass and appendicular skeletal muscle index were higher in the non-osteoporosis group than the osteoporosis group(P＜0.05).(2)Muscle mass was positively correlated with bone mineral density of the overall lumbar spine and individual vertebrae(P＜0.05).(3)Multiple stepwise linear regression analysis showed that body mass and grip strength were linearly and positively correlated with muscle mass;body height and muscle mass were linearly and positively correlated with grip strength,and body mass was linearly and negatively correlated with grip strength.Body mass index was linearly and positively correlated with bone mineral density,and age was linearly and negatively correlated with bone mineral density.(4)Analysis by receiver operating characteristic curve showed that:muscle mass(the area under the curve,sensitivity,specificity and critical value of muscle mass were 0.744,76.50％,74.20％and 36.50 kg,respectively,with P=0.002)and appendicular skeletal muscle index(the area under the curve,sensitivity,specificity and critical value of appendicular skeletal muscle index were 0.739,82.40％,62.10％and 5.81 kg/m2,respectively,and P=0.002)had good predictive value for postmenopausal osteoporosis.To conclude,a reduction in muscle mass and appendicular skeletal muscle index can help to predict the risk of postmenopausal osteoporosis,and the possibility of osteoporosis should be taken into account in postmenopausal women when muscle mass is＜36.50 kg or appendicular skeletal muscle index is＜5.81 kg/m2,in order to prevent the occurrence of postmenopausal osteoporosis.

BACKGROUND:The prevalence of osteoporosis is high in postmenopausal women,but muscle mass,grip strength,and how these factors affect osteoporosis are understudied,and the exact link between them has not been clarified.OBJECTIVE:To investigate the correlation between muscle mass,grip strength,appendicular skeletal muscle index and bone mineral density in postmenopausal women with osteoporosis and to assess the potential values of these indices in predicting and diagnosing postmenopausal osteoporosis.METHODS:Eighty-three postmenopausal women were collected from the outpatient clinic of the Third Affiliated Hospital of Guangzhou University of Chinese Medicine from February 2023 to January 2024.General data were collected.Bone mineral density was detected.T-value,muscle mass of each part,grip strength were recorded.The body mass index and appendicular skeletal muscle index were calculated.The patients were categorized into non-osteoporosis group(n=17)and postmenopausal osteoporosis group(n=66)according to T value and fracture history,and were statistically analyzed accordingly.RESULTS AND CONCLUSION:(1)The body mass,body mass index,bone mineral density of the overall lumbar spine,muscle mass and appendicular skeletal muscle index were higher in the non-osteoporosis group than the osteoporosis group(P＜0.05).(2)Muscle mass was positively correlated with bone mineral density of the overall lumbar spine and individual vertebrae(P＜0.05).(3)Multiple stepwise linear regression analysis showed that body mass and grip strength were linearly and positively correlated with muscle mass;body height and muscle mass were linearly and positively correlated with grip strength,and body mass was linearly and negatively correlated with grip strength.Body mass index was linearly and positively correlated with bone mineral density,and age was linearly and negatively correlated with bone mineral density.(4)Analysis by receiver operating characteristic curve showed that:muscle mass(the area under the curve,sensitivity,specificity and critical value of muscle mass were 0.744,76.50％,74.20％and 36.50 kg,respectively,with P=0.002)and appendicular skeletal muscle index(the area under the curve,sensitivity,specificity and critical value of appendicular skeletal muscle index were 0.739,82.40％,62.10％and 5.81 kg/m2,respectively,and P=0.002)had good predictive value for postmenopausal osteoporosis.To conclude,a reduction in muscle mass and appendicular skeletal muscle index can help to predict the risk of postmenopausal osteoporosis,and the possibility of osteoporosis should be taken into account in postmenopausal women when muscle mass is＜36.50 kg or appendicular skeletal muscle index is＜5.81 kg/m2,in order to prevent the occurrence of postmenopausal osteoporosis.

Background: and Purpose In patients with large vessel occlusion (LVO), intravenous thrombolysis (IVT) frequently alters thrombus location; however, the clinical impact of this phenomenon remains unclear. We aimed to compare post-IVT thrombus dynamics between tenecteplase and alteplase and to evaluate the association between thrombus dynamics and 3-month outcomes. Methods: This retrospective study analyzed prospectively collected, multicenter data from consecutive patients with LVO who underwent bridging therapy between January 2022 and December 2024. Thrombus dynamics were classified as resolution, migration, or stability. Analyses incorporated propensity score matching with weighting to balance baseline characteristics. Results: Of the 806 initially included patients, 746 were included after matching (373 treated with tenecteplase and 373 treated with alteplase). The incidence of thrombus migration was significantly higher in the tenecteplase group than in the alteplase group (19.3% vs. 11.3%; odds ratio [OR]: 1.92; 95% confidence interval [CI] 1.27–2.91). The advantage of tenecteplase over alteplase was restricted to patients with an IVT-to-puncture time of <60 minutes (18.6% vs. 6.2%; p=0.001) and was no longer significant when the interval ≥60 minutes (19.7% vs. 15.0%; p=0.204; pinteraction=0.043). Additionally, thrombus migration was associated with a better functional outcome (OR: 1.62; 95% CI 1.04–2.53). Finally, tenecteplase was associated with improved functional independence compared with alteplase (OR: 1.43; 95% CI 1.04–1.95). Conclusions Tenecteplase demonstrated superior efficacy in inducing thrombus migration compared with alteplase, particularly within 60 minutes of IVT administration. Thrombus migration independently predicted improved functional independence. These findings support the preferential use of tenecteplase for bridging therapy in patients with LVO.

The development of polysaccharide conjugate vaccines, which convert polysaccharide antigens into T-cell-dependent immunogens through covalent conjugation with protein carriers, represents a critical strategy for enhancing immune protection in infants and young children. Globally licensed conjugate vaccines currently employ carrier proteins including Tetanus Toxoid, Diphtheria Toxoid, and Cross-Reacting Material 197. Recent advances have focused on three key areas: novel carrier protein discovery, optimized conjugation strategies, and evaluation of immune interference during co-administration of multivalent formulations. These efforts aim to achieve broader serotype coverage, prolonged protective efficacy, and simplified immunization schedules. This review synthesizes recent progress in carrier protein development, encompassing vaccine design principles, manufacturing processes, safety profiles, and epidemiological effectiveness. Furthermore, it critically examines current selection criteria for carrier proteins, their clinical applications, and persistent challenges, providing strategic insights to inform future conjugate vaccine development and immunization policy optimization in China.

Objective To observe the clinical efficacy of Fuyuan Capsules combined with Xingnao Kaiqiao acupuncture in the treatment of vascular dementia(VD),and to explore its possible mechanism of action.Methods A total of 204 cases of patients with a definitive diagnosis of VD admitted to the wards and outpatient clinics of Hengshui Hospital of Traditional Chinese Medicine from October 2019 to October 2022 were selected for the study.The patients were randomly divided into observation group and control group according to the random number table method,with 102 cases in each group.The patients in both groups were treated with symptomatic treatments such as blood pressure-controlling,glucose-lowering,blood lipids-regulating,along with cognitive function training.The control group was treated with Xingnao Kaiqiao acupuncture,and the observation group was given oral administration of Fuxing Capsules on the basis of the treatment in the control group.One week constituted a course of treatmen,and eight consecutive courses of treatment were carried out.After two months of treatment,the clinical efficacy of the two groups was evaluated.The changes in the scores of the Mini-Mental State Examination(MMSE),Montreal Cognitive Assessment(MoCA),Revised Hasegama's Dementia Scale(HDS-R),and Clinical Dementia Rating Scale(CDR)were observed in the patients of the two groups before and after treatment.The changes in the scores of the Activity of Daily Living Scale(ADL),Hachinski Ischemic Scale(HIS),and the traditional Chinese medicine(TCM)syndrome scores before and after treatment were compared in patients of the two groups.The changes in the expression level of neuregulin 1(NRG1)before and after treatment in patients of the two groups were detected.Results(1)During the study,two cases fell off from both groups,respectively.Finally,100 cases in the observation group and 100 cases in the control group were included in the efficacy statistics.(2)After treatment,the MMSE and MoCA scores of the patients in the two groups were significantly improved(P＜0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P＜0.05).(3)After treatment,the HDS-R and CDR scores of patients in the two groups were significantly improved(P＜0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P＜0.05).(4)After treatment,the ADL and HIS scores of patients in the two groups were significantly improved(P＜0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P＜0.05).(5)After treatment,the TCM syndrome scores of patients in the two groups were significantly improved(P＜0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P＜0.05).(6)The total effective rate was 84.00％(84/100)in the observation group and 67.00％(67/100)in the control group.The efficacy of the observation group was superior to that of the control group,the difference being statistically significant(P＜0.05).(7)After treatment,the NRG1 levels of patients in the two groups were improved significantly(P＜0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P＜0.05).Conclusion Fuyuan Capsules combined with Xingnao Kaiqiao acupuncture in the treatment of VD can significantly improve the clinical symptoms of patients,enhance the cognitive function,and effectively increase the serum NRG 1 level,so as to improve their quality of life.

Objective:To investigate the association between dopamine D2 receptor ( DRD2) promoter methylation levels and melancholic depression (MD), and its correlation with psychosocial factors and depression severity. Method:A total of 30 patients with melancholic depression (MD group) and 30 with non-melancholic depression (NMD group) were recruited from the First Affiliated Hospital of Xinjiang Medical University between October 2023 and October 2024, along with 30 healthy controls. Participants were assessed by the Hamilton depression rating scale (HAMD-24), dimensional anhedonia rating scale (DARS), childhood trauma questionnaire (CTQ), life event scale (LES), and social support rating scale (SSRS). DRD2 methylation levels in peripheral blood were measured by MassArray technology. Data were analyzed in SPSS 29.0 software using ANOVA, non-parametric tests, and t-tests to compare methylation levels among groups, and Logistic regression, Pearson correlation, and multiple linear regression to examine associations between DRD2 methylation and psychosocial factors and depression severity. Results:(1) There were statistically significant differences among the three groups in years of education ( F=9.873, P=0.007), HAMD-24 total scores ( H=76.669, P<0.001), DARS total scores ( H=60.617, P<0.001), SSRS total scores ( F=3.592, P=0.032), LES negative stimulus scores ( H=43.461, P<0.001), and CTQ total scores ( H=10.751, P=0.005). The MD group had a longer course of illness ( Z=-1.980, P=0.048), more episodes ( Z=-2.027, P=0.043), and a higher rate of suicide attempts in the past year ( χ2= 9.643, P=0.002) compared with the NMD group. The MD group had higher HAMD-24 total scores (31.00 (28.00, 32.25)) than the NMD group (23.00 (21.00, 25.00)), and lower DARS total scores (17.00 (9.75, 22.00)) compared with the NMD group(36.50 (33.75, 43.00)) (both P<0.05). (2) No statistically significant difference was found in DRD2 gene methylation levels among the three groups ( F=0.081, all P>0.05). Logistic regression showed that DRD2 gene methylation level was not an influencing factor for the onset of MD ( P>0.05). (3)The correlation analysis and multiple linear regression analysis showed that childhood trauma (CTQ total score) was negatively correlated with DRD2 gene methylation levels in MD patients ( r=-0.416, P=0.025) and MDD patients. DRD2 gene methylation level was not correlated with depression severity ( r=0.136, P>0.05) or anhedonia severity (both P>0.05). Social support (SSRS total score) was positively correlated with DARS total scores in MD patients( r=0.427, P=0.019), and years of education had a positive association with DARS total scores in MDD patients ( B=1.527, P=0.030), suggesting that both are negatively correlated with the degree of anhedonia. Conclusion:DRD2 methylation may be influenced by early-life trauma, but its role in the pathogenesis of MD and its association with depression severity require further investigation.

The development of polysaccharide conjugate vaccines, which convert polysaccharide antigens into T-cell-dependent immunogens through covalent conjugation with protein carriers, represents a critical strategy for enhancing immune protection in infants and young children. Globally licensed conjugate vaccines currently employ carrier proteins including Tetanus Toxoid, Diphtheria Toxoid, and Cross-Reacting Material 197. Recent advances have focused on three key areas: novel carrier protein discovery, optimized conjugation strategies, and evaluation of immune interference during co-administration of multivalent formulations. These efforts aim to achieve broader serotype coverage, prolonged protective efficacy, and simplified immunization schedules. This review synthesizes recent progress in carrier protein development, encompassing vaccine design principles, manufacturing processes, safety profiles, and epidemiological effectiveness. Furthermore, it critically examines current selection criteria for carrier proteins, their clinical applications, and persistent challenges, providing strategic insights to inform future conjugate vaccine development and immunization policy optimization in China.

Objective:To investigate the association between dopamine D2 receptor ( DRD2) promoter methylation levels and melancholic depression (MD), and its correlation with psychosocial factors and depression severity. Method:A total of 30 patients with melancholic depression (MD group) and 30 with non-melancholic depression (NMD group) were recruited from the First Affiliated Hospital of Xinjiang Medical University between October 2023 and October 2024, along with 30 healthy controls. Participants were assessed by the Hamilton depression rating scale (HAMD-24), dimensional anhedonia rating scale (DARS), childhood trauma questionnaire (CTQ), life event scale (LES), and social support rating scale (SSRS). DRD2 methylation levels in peripheral blood were measured by MassArray technology. Data were analyzed in SPSS 29.0 software using ANOVA, non-parametric tests, and t-tests to compare methylation levels among groups, and Logistic regression, Pearson correlation, and multiple linear regression to examine associations between DRD2 methylation and psychosocial factors and depression severity. Results:(1) There were statistically significant differences among the three groups in years of education ( F=9.873, P=0.007), HAMD-24 total scores ( H=76.669, P<0.001), DARS total scores ( H=60.617, P<0.001), SSRS total scores ( F=3.592, P=0.032), LES negative stimulus scores ( H=43.461, P<0.001), and CTQ total scores ( H=10.751, P=0.005). The MD group had a longer course of illness ( Z=-1.980, P=0.048), more episodes ( Z=-2.027, P=0.043), and a higher rate of suicide attempts in the past year ( χ2= 9.643, P=0.002) compared with the NMD group. The MD group had higher HAMD-24 total scores (31.00 (28.00, 32.25)) than the NMD group (23.00 (21.00, 25.00)), and lower DARS total scores (17.00 (9.75, 22.00)) compared with the NMD group(36.50 (33.75, 43.00)) (both P<0.05). (2) No statistically significant difference was found in DRD2 gene methylation levels among the three groups ( F=0.081, all P>0.05). Logistic regression showed that DRD2 gene methylation level was not an influencing factor for the onset of MD ( P>0.05). (3)The correlation analysis and multiple linear regression analysis showed that childhood trauma (CTQ total score) was negatively correlated with DRD2 gene methylation levels in MD patients ( r=-0.416, P=0.025) and MDD patients. DRD2 gene methylation level was not correlated with depression severity ( r=0.136, P>0.05) or anhedonia severity (both P>0.05). Social support (SSRS total score) was positively correlated with DARS total scores in MD patients( r=0.427, P=0.019), and years of education had a positive association with DARS total scores in MDD patients ( B=1.527, P=0.030), suggesting that both are negatively correlated with the degree of anhedonia. Conclusion:DRD2 methylation may be influenced by early-life trauma, but its role in the pathogenesis of MD and its association with depression severity require further investigation.