Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.

Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.

ObjectiveTo investigate the mechanism of Buzhong Yiqitang in ameliorating ferroptosis in autoimmune thyroiditis （AIT） mice based on the nuclear factor erythroid 2-related factor 2 （Nrf2）/peroxisome proliferator-activated receptor γ （PPARγ）/glutathione peroxidase 4 （GPX4） pathway. Method120 SPF-grade 7-8-week-old NOD.H-2^h4 mice were randomly divided into control group， model group， low-， medium-， and high-dose Buzhong Yiqitang groups， and western medicine group， with 20 mice in each group. Except for the control group， all mice were fed with classic high-iodine water （0.05% NaI） to induce AIT models after 8 weeks. The low-， medium-， and high-dose Buzhong Yiqitang groups were administered 4.78， 9.56， 19.12 g·kg^-1 of Buzhong Yiqitang， respectively， via gavage. The western medicine group was given 3.033×10^-5 g·kg^-1 selenium yeast tablet suspension via gavage， while the control and model groups were given an equal volume of distilled water via gavage. After 8 weeks of continuous treatment， samples were collected. The pathological morphology of mouse thyroid tissue was observed through hematoxylin-eosin （HE） staining，the content of serumantithyroid peroxidase autoantibody（TPOAb）and anti-thyroglobulin antibodies（TGAb）was measured by enzyme-linked immunosorbent assay （ELISA），the kit was used to detect the levels of superoxide dismutase （SOD）， and malondialdehyde （MDA） in mouse serum. Immunofluorescence was used to detect the localized expression of GPX4 in thyroid tissue. Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to detect the expression of Nrf2， PPARγ， solute carrier family 7 member 11 （SLC7A11）， solute carrier family 3 member 2 （SLC3A2）， lysolipid lecithin acyltransferase 3 （LPCAT3）， and GPX4 mRNA in thyroid tissue. Western blot was used to detect the expression of Nrf2， PPARγ， SLC7A11， SLC3A2， LPCAT3， and GPX4 proteins in thyroid tissue. ResultCompared with control group， model group under light microscopy showed significant lymphocyte infiltration in the thyroid tissue， significantly increased levels of TGAb and TPOAb in serum （P<0.01）， significantly increased MDA levels and decreased SOD levels in serum （P<0.01）， significantly decreased expression of Nrf2， PPARγ， SLC7A11， SLC3A2， and GPX4 （P<0.01） in thyroid tissue， while the expression of LPCAT3 was significantly increased （P<0.01）. Compared with model group， the Buzhong Yiqitang groups and the western medication group under light microscopy showed lymphocyte infiltration in the thyroid tissue of was decreased， significantly decreased levels of TPOAb and TGAb in serum （P<0.05，P<0.01）， decreased MDA levels and increased SOD levels in serum（P<0.05，P<0.01），significantly increased expression of Nrf2， PPARγ， SLC7A11， SLC3A2， and GPX4， while the expression of LPCAT3 was significantly decreased （P<0.05，P<0.01） in the thyroid tissue. Compared with western medication group， Buzhong Yiqitang groups showed significant overall trends in the expression of Nrf2， PPARγ， SLC7A11， SLC3A2， GPX4， and LPCAT3 （P<0.05，P<0.01）. ConclusionBuzhong Yiqitang can effectively improve the inflammatory injury of AIT， and its mechanism of action may be related to the regulation of Nrf2/PPARγ/GPX4 to inhibit ferroptosis.

ObjectiveTo explore the mechanism of Buzhong Yiqitang in improving autoimmune thyroiditis （AIT） by regulating helper T cell 17（Th17） cells through microRNA-155 （miR-155）/Nedd4 family interaction protein 1 （Ndfip1）/phosphatase and tensin homology （Pten） axis. MethodThe 100 SPF grade 8 week-old NOD.H-2^h4 mice were fed with high iodine water （0.05% NaI） for 8 weeks， and AIT model was made. They were divided into model group， Buzhong Yiqitang low-，medium-，and high-dose groups （4.78，9.56，19.12 g·kg^-1·d^-1） and selenium yeast tablet group （3.033×10^-5 g·kg^-1） according to random number table method. There were 20 mice in each group and 20 mice in the control group. The control group and the model group were given the same amount of distilled water. After 8 weeks of continuous administration， Real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to detect the expression of miR-155-5p， Ndfip1， Pten， protein tyrosine kinase 1 （Jak1）， signaling and transcriptional activator 3 （Stat3） retinoic acid-associated orphan receptor γt （RORγt）， and interleukin-17 （IL-17） mRNA in mouse thyroid tissue. Western blot was used to detect the expression of Ndfip1， Pten， Jak1， Stat3， RORγt， and IL-17 proteins in mouse thyroid tissue， immunohistochemical method was used to detect the expression of Ndfip1 and Pten proteins in mouse thyroid tissue； flow cytometry was used to detect the proportion of Th17 cells in mouse spleen. ResultCompared with the control group， the proportion of Th17 cells was increased （P<0.01）. The expressions of miR-155-5p， Jak1， Stat3， RORγt and IL-17 were increased （P<0.01）， while the expressions of Ndfip1 and Pten were decreased （P<0.01）. Compared with model group， the proportion of Th17 cells was decreased （P<0.05，P<0.01）. The expressions of miR-155-5p， Jak1， Stat3， RORγt and IL-17 were decreased （P<0.05，P<0.01）， while the expressions of Ndfip1 and Pten were increased （P<0.05，P<0.01）. ConclusionThe application of Buzhong Yiqitang can improve the autoimmune disorder of AIT mice， the mechanism of which may be related to the regulation of Ndfip1/Pten axis by miR-155 and then the regulation of Th17 cell differentiation.

ObjectiveTo investigate the effects of Buzhong Yiqitang on the tumor necrosis factor receptor superfamily member 6 （Fas）/Fas related death domain protein （FADD）/Caspase-8 cell apoptotic signaling pathway in mice model with autoimmune thyroiditis （AIT）. MethodThere were 120 SPF grade NOD.H-2^h4 mice aged 8 weeks， 100 of which were fed with high iodine water （0.05% NaI）， and the AIT model was made after 8 weeks. According to random number table method， they were divided into model group， Buzhong Yiqitang low-dose， medium-dose and high-dose groups （4.78， 9.56， 19.12 g·kg^-1）， selenium yeast tablet group （3.033×10^-5 g·kg^-1）， with 20 mice in each group and 20 control group. The apoptosis of thyroid cells was detected by in situ end labeling （TUNEL） after 8 weeks of administration. The real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） was used to detect the mRNA expression of Fas， FADD， Caspase-8， and Caspase-3 in thyroid tissue. Western blot was used to detect the protein expression of Fas， FADD， Caspase-8， Caspase-3， cleaved Caspase-8， and cleaved Caspase-3 in thyroid tissue， and the immunohistochemical method was used to detect the protein expression of Fas and Caspase-3 in thyroid tissue. ResultCompared with control group， there were more positive expressions of apoptotic cells in model group under fluorescence microscope， and the expressions of Fas， FADD， Caspase-8， Caspase-3， cleaved Caspase-8 and cleaved Caspase-3 were significantly increased （P<0.05， P<0.01）. Compared with model group， the positive expression of thyroid apoptotic cells in each administration group was decreased under fluorescence microscope， and the expressions of Fas， FADD， Caspase-8， Caspase-3， cleaved Caspase-8， cleaved Caspase-3 were significantly decreased （P<0.05， P<0.01）. ConclusionBuzhong Yiqitang can effectively improve thyroid cell apoptosis and inflammatory injury in AIT mice. The mechanism may be related to the inhibition of Fas/FADD/Caspase-8 signaling pathway.

ObjectiveTo determine the influence of Buzhong Yiqitang on miRNA expression in thyroid tissues of mice with autoimmune thyroiditis （AIT）. MethodThirty female 8-week-old NOD.H-2^h4 mice were randomly assigned into normal control group， model group， and Buzhong Yiqitang group （BG）， 10 in each group. Mice were subjected to a diet containing 0.05% sodium iodide for 8 weeks to build the AIT mouse model. After 8 weeks of administration （ig）， samples were collected. A thyroid biopsy was performed on each group of mice， and differential miRNAs in thyroid tissues from each group of mice were analyzed based on experimental validation and bioinformatics. ResultCompared with the conditions of normal control group， thyroid lymphocytes had significant inflammatory infiltration， and there was an increase in serum TgAb level and interleukin（IL）-6 and IL-17 expression and a decrease in IL-1β expression in mice of the model group （P<0.05， P<0.01）. In addition， 154 differentially expressed miRNAs were found. Compared with the conditions of model group， the degree of thyroid tissue inflammation was alleviated， and serum TgAb level， and IL-1β， IL-6 and IL-17 expression of mice treated with the Buzhong Yiqitang were reduced （P<0.05， P<0.01）. Additionally， 112 differentially expressed miRNAs were identified in the BG group. Validation using real-time polymerase chain reaction（Real-time PCR） showed the same trend for miR-326-3p， miR-128-3p， miR-223-5p， miR-141-3p， miR-871-3p， and miR-204-3p as that obtained from miRNA sequencing. In particular， gene ontology（GO） functions were enriched for regulation of T cell activation， oxidative stress， and miRNA binding. Pathways identified by Kyoto encyclopedia of genes and genomes（KEGG）database tended to be enriched in phosphatidylinositol 3-kinases（PI3K）/protein kinase B（Akt）， mitogen-activated protein kinase（MAPK）， and cyclic adenosine monophosphate（cAMP） signaling pathways. Based on miRNA prediction differences， three key genes were identified： SMAD3， JAK2， and STAT3. ConclusionBushong Yiqitang might treat autoimmune thyroiditis by regulating 6 miRNAs.

Coronaviruses (CoVs) are a group of common viruses that can infect humans and pose a great threat to global public health. Mounting evidence has shown that seven zoonotic CoVs can infect human through cross-species transmission. These continuously occurring yet unpredictable events of CoVs repeatedly crossing species barriers have attracted special attention to CoVs and caused panic worldwide. It is generally believed that the spike (S) protein is the key factor determining the cross-species transmission and the invasion potential of CoVs. This review focused on the new-found coronaviruses with potential cross-species transmission capabilities, and summarized and analyzed the research progress in S protein-mediated viral invasion as well as the potential mechanisms, aiming to provide reference for developing effective prevention and control strategies against potential cross-species transmission of CoVs in the future.

Objective:To calculate the health efficiency of government health expenditures in 1990 , 2000 and 2010 and analyze its determinants. Methods:To calculate the health efficiency of government health expenditures and analyze its determinants by using the DEA-Tobit model. Results:Health efficiency of government health expenditures has been increasing gradually;the same provinces are found to be on the productive frontier, but the provinces off the frontier are different;eastern provinces have a higher efficiency than those in the middle and western regions. Fiscal decentralization has a significant negative impact on health efficiency. Conclusion:The current Chinese fiscal decen-tralization system reform is important to improve the health efficiency of government health expenditures.

Sepsis is a common acute systemic infection,severe sepsis has a high rate of mortality,and its incidence rate is rising year by year.Due to the overproduction of free radicals in sepsis,microcirculation blood is drived disorder,multiple organ function can be impaired.This review describes the role of ascorbic acid in sepsis patients,which can reverse the oxidative stress injury rapidly through an eNOS-dependent mechanism,resisting platelet adhersion,preventing capillary embolism,resevering microcirculation blood flow,so as to improve patients' survival.

Objective To investigate the association between polymorphism of HLA-DRB1 allele and systemic sclerosis (SSc) and scleroderma-associated renal damage in Han Chinese of Henan Province.Methods Eighty-one SSc patients and 90 normal controls were recruited in this study,among them 59 patients had renal damage (SRD).The genotyping was carried out by nest PCR-SBT and gene clone.Comparisons between groups were performed with x2 test or exact probabilities.Multivariable Logistic regression was used to evaluate the association between prevalence of SSc or SRD and the possible relevant alleles.Results Thirty-three HLA-DRB1 alleles were discovered from the specimens,including 27 in SSc specimens,and 22 in SRD.Among them,the allele frequencies of HLA-DRB1 * 040501 (8.64％), * 110101 (11.11％), * 150201(8.02％) were higher in SSc patients than those of the controls (1.67％,4.44％,2.22％ respectively).After adjusted for other factors,HLA-DRBl * 040501 (P=0.010,OR =5.839,95％CI:1.518-22.460)、* 110101(P=0.019,OR=3.060,95％CI:1.204-7.772)、* 150201(P=0.010,OR=4.780,95％CI:1.444-15.821 )were identified as independent risk factors for SSc.And the allele frequencies of HLA-DRB1*040501 (9.32％),* 150201 (7.63％) were higher in SRD patients than those of the controls (1.67％,2.22％ respectively).After adjusted for other factors,HLA-DRB1 * 040501 (P=0.008,OR=6.363,95％CI:1.614-25.087) and * 150201 (P=0.030,OR =4.043,95 ％CI:1.147-14.243 ) were identified as independent risk factors for SRD.Conclusion Our data suggest that HLA-DRB1 * 040501,* 110101,* 150201 may be susceptible genes for SSc and the HLA-DRB1 * 040501,* 150201 may be susceptible genes for SRD in Han Chinese of Henan Province.