Alzheimer’s disease (AD) is a central neurodegenerative disease characterized by progressive cognitive decline and memory impairment in clinical. Currently, there are no effective treatments for AD. In recent years, a variety of therapeutic approaches from different perspectives have been explored to treat AD. Although the drug therapies targeted at the clearance of amyloid β-protein (Aβ) had made a breakthrough in clinical trials, there were associated with adverse events. Neuroinflammation plays a crucial role in the onset and progression of AD. Continuous neuroinflammatory was considered to be the third major pathological feature of AD, which could promote the formation of extracellular amyloid plaques and intracellular neurofibrillary tangles. At the same time, these toxic substances could accelerate the development of neuroinflammation, form a vicious cycle, and exacerbate disease progression. Reducing neuroinflammation could break the feedback loop pattern between neuroinflammation, Aβ plaque deposition and Tau tangles, which might be an effective therapeutic strategy for treating AD. Traditional Chinese herbs such as Polygonum multiflorum and Curcuma were utilized in the treatment of AD due to their ability to mitigate neuroinflammation. Non-steroidal anti-inflammatory drugs such as ibuprofen and indomethacin had been shown to reduce the level of inflammasomes in the body, and taking these drugs was associated with a low incidence of AD. Biosynthetic nanomaterials loaded with oxytocin were demonstrated to have the capability to anti-inflammatory and penetrate the blood-brain barrier effectively, and they played an anti-inflammatory role via sustained-releasing oxytocin in the brain. Transplantation of mesenchymal stem cells could reduce neuroinflammation and inhibit the activation of microglia. The secretion of mesenchymal stem cells could not only improve neuroinflammation, but also exert a multi-target comprehensive therapeutic effect, making it potentially more suitable for the treatment of AD. Enhancing the level of TREM2 in microglial cells using gene editing technologies, or application of TREM2 antibodies such as Ab-T1, hT2AB could improve microglial cell function and reduce the level of neuroinflammation, which might be a potential treatment for AD. Probiotic therapy, fecal flora transplantation, antibiotic therapy, and dietary intervention could reshape the composition of the gut microbiota and alleviate neuroinflammation through the gut-brain axis. However, the drugs of sodium oligomannose remain controversial. Both exercise intervention and electromagnetic intervention had the potential to attenuate neuroinflammation, thereby delaying AD process. This article focuses on the role of drug therapy, gene therapy, stem cell therapy, gut microbiota therapy, exercise intervention, and brain stimulation in improving neuroinflammation in recent years, aiming to provide a novel insight for the treatment of AD by intervening neuroinflammation in the future.

Eight compounds were isolated and purified from the ethyl acetate part of 70% acetone extract of Rehmannia glutinosa by various chromatographic techniques such as silica gel, MCI gel CHP-20, ODS, Toyopearl HW-40C, combined with TLC and semi-preparative HPLC. Their structures were elucidated by modern spectroscopy techniques (NMR, MS, UV, IR), and identified as neomartynoside A (1), osmanthuside B₆ (2), martynoside (3), isomartynoside (4), (E)-p-hydroxycinnamic acid (5), caffeic acid (6), ferulic acid (7), and methyl caffeate (8). Compound 1 is a new phenylethanol glycoside, which was identified as neomartynoside A. Compound 2 was isolated from Rehmannia glutinosa for the first time. In addition, compounds 2, 6 and 7 significantly increased relative glucose consumption, showing potential hypoglycemic activity.

ObjectiveTo establish background data for a 90-day feeding trial of SD rats to ensure the reliability of research data. MethodsBackground data from six independent 90-day feeding trials of SD rats conducted by the National Center for Safety Evaluation of Drugs from 2020 to 2023 were summarized. These studies involved a blank control group of 120 SPF-grade 4-week-old SD rats, with an equal number of males and females, which were only given standard full-nutrient pelleted rat feed. After the quarantine period, the animals were observed for an additional 90 days, followed by intraperitoneal injection of Zoletil (50 mg/mL) for anesthesia, blood sampling, euthanasia, and necropsy. By analyzing the data from the blank control group, a relevant background database for SD rats was established. ResultsBoth male and female rats exhibited steady weight gain, with a more pronounced increase in male rats. Within 90 days, the average body weight of male and female rats increased to over 500 g and 300 g, respectively. Three weeks later, the average daily food intake of male rats stabilized at approximately 25~28 g per rat, while that of female rats remained stable at approximately 16~19 g per rat. The food utilization rate of all animals gradually decreased from the first week of the experiment. In the white blood cell (WBC) differential count results, significant differences were observed in the counts of WBCs, neutrophils (Neut), lymphocytes (Lymph), and monocytes (Mono) between males and females (P<0.001). However, there were no significant differences in the percentages of neutrophil (%Neut), lymphocyte (%Lymph), and monocyte (%Mono) between the sexes (P>0.05). The average red blood cell count (RBC), hemoglobin concentration (HGB), hematocrit (HCT), platelet count (PLT), prothrombin time (PT), and activated partial thromboplastin time (APTT) were higher in male animals than in female animals (P<0.05). The average values of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), creatine phosphokinase (CK), lactate dehydrogenase (LDH), glucose (GLU), and triglyceride (TG) in male rats were higher than those in female rats (P<0.05). The urinary pH range for male animals was 5.0 to 8.5, while for female animals it was 6.5 to 9.0. The majority of male animals had a urinary specific gravity lower than 1.020, and the majority of female animals had a urinary specific gravity lower than 1.015. The weights of various organs (excluding the adrenal glands and reproductive organs) in male animals were heavier than those in female animals (P<0.001), while the organ/body weight ratios (excluding the kidneys and reproductive organs) of female animals were higher than those of male animals (P<0.001). ConclusionThis study summarizes the background reference ranges for body weight, food intake, hematology, and serum biochemistry indicators in SPF-grade SD rats in the untreated control group from six 90-day feeding trials conducted by the National Center for Safety Evaluation of Drugs. It provides important reference data for related research. By summarizing the background and spontaneous histopathological changes in rats, this study aids in the standardization and normalization of subsequent research, as well as in the evaluation and analysis of abnormal results.

Purpose: Sensorineural hearing loss (SNHL) is prevalent among older adults in the United States. Recent studies suggest the triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio as a potential marker for metabolic and cardiovascular conditions. Our research investigates the association between the TG/HDL-C ratio and SNHL using a comprehensive national dataset. Materials and Methods: This cross-sectional study utilized the National Health and Nutrition Examination Survey (NHANES) data cycle 1999–2000, 2001–2002, 2003–2004, 2011–2012, and 2015–2016. Participants aged 50–69 years with complete audiometry and TG/HDL-C data were included. The outcome was the presence of SNHL, defined as an average hearing threshold >25 dB in the better ear. We employed multivariate logistic regression adjusted for demographics, smoking, noise exposure, and comorbidities to explore the association. Results: A total of 1148 participants constituted the analytic sample, and 31.4% had SNHL. Compared to no SNHL, those with SNHL exhibited higher TG/HDL-C ratios (3.5 vs. 2.7). Elevated TG/HDL-C tertiles correlated with increased SNHL odds [tertile 2:adjusted odds ratio (aOR)=1.50, 95% confidence interval (CI): 0.97–2.32, p=0.069; tertile 3: aOR=1.64, 95% CI: 1.03–2.63, p=0.039].The link was stronger in participants without diabetes or obesity, with significant predictive values for SNHL presence (area under the ROC curve=0.716 and 0.753, respectively). Conclusion A higher TG/HDL-C ratio was significantly associated with SNHL in US adults aged 50–69 years, especially in those free from diabetes or obesity. These findings support considering TG/HDL-C as a useful marker for SNHL risk, highlighting the importance of combined metabolic and auditory health assessments.

AIM To study the chemical constituents from n-butanol fraction of Corydalis impatiens(Pall.)Fisch.and their antioxidant activities.METHODS The n-butanol fraction was isolated and purified by silica gel,MCI,ODS,Sephadex LH-20 and semi-preparative HPLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The antioxidant activities were determined by DPPH method and tyrosinase method.RESULTS Fourteen compounds were isolated and identified as nicotinamide(1),methyl L-pyroglutamate(2),bungeanoline F(3),monomethyl fumarate(4),5-hydroxymethylfurfural(5),4-hydroxybenzoic acid(6),hydroxybenzoate(7),methyl 3,4-dihydroxybenzoate(8),methyl ferulate(9),dimethylcaffeic acid(10),dimethyl feruloyl malate(11),(-)-4-O-feruloylquinic acid(12),syringaresinol(13)and(-)-loliolide(14).Compounds 1,8,11 and 13 showed strong antioxidant activites on DPPH free radicals,with IC50 values ranging from 54.47 to 97.4 μmol/L.Compound 13 had potential inhibitory effect on tyrosinase.CONCLUSION Compounds 4-14 are first isolated from Corydalis genus,and 3 is isolated from this plant for the first time.Compounds 1,8,11 and 13 have strong antioxidant activities.

Purpose: Sensorineural hearing loss (SNHL) is prevalent among older adults in the United States. Recent studies suggest the triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio as a potential marker for metabolic and cardiovascular conditions. Our research investigates the association between the TG/HDL-C ratio and SNHL using a comprehensive national dataset. Materials and Methods: This cross-sectional study utilized the National Health and Nutrition Examination Survey (NHANES) data cycle 1999–2000, 2001–2002, 2003–2004, 2011–2012, and 2015–2016. Participants aged 50–69 years with complete audiometry and TG/HDL-C data were included. The outcome was the presence of SNHL, defined as an average hearing threshold >25 dB in the better ear. We employed multivariate logistic regression adjusted for demographics, smoking, noise exposure, and comorbidities to explore the association. Results: A total of 1148 participants constituted the analytic sample, and 31.4% had SNHL. Compared to no SNHL, those with SNHL exhibited higher TG/HDL-C ratios (3.5 vs. 2.7). Elevated TG/HDL-C tertiles correlated with increased SNHL odds [tertile 2:adjusted odds ratio (aOR)=1.50, 95% confidence interval (CI): 0.97–2.32, p=0.069; tertile 3: aOR=1.64, 95% CI: 1.03–2.63, p=0.039].The link was stronger in participants without diabetes or obesity, with significant predictive values for SNHL presence (area under the ROC curve=0.716 and 0.753, respectively). Conclusion A higher TG/HDL-C ratio was significantly associated with SNHL in US adults aged 50–69 years, especially in those free from diabetes or obesity. These findings support considering TG/HDL-C as a useful marker for SNHL risk, highlighting the importance of combined metabolic and auditory health assessments.

Purpose: Sensorineural hearing loss (SNHL) is prevalent among older adults in the United States. Recent studies suggest the triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio as a potential marker for metabolic and cardiovascular conditions. Our research investigates the association between the TG/HDL-C ratio and SNHL using a comprehensive national dataset. Materials and Methods: This cross-sectional study utilized the National Health and Nutrition Examination Survey (NHANES) data cycle 1999–2000, 2001–2002, 2003–2004, 2011–2012, and 2015–2016. Participants aged 50–69 years with complete audiometry and TG/HDL-C data were included. The outcome was the presence of SNHL, defined as an average hearing threshold >25 dB in the better ear. We employed multivariate logistic regression adjusted for demographics, smoking, noise exposure, and comorbidities to explore the association. Results: A total of 1148 participants constituted the analytic sample, and 31.4% had SNHL. Compared to no SNHL, those with SNHL exhibited higher TG/HDL-C ratios (3.5 vs. 2.7). Elevated TG/HDL-C tertiles correlated with increased SNHL odds [tertile 2:adjusted odds ratio (aOR)=1.50, 95% confidence interval (CI): 0.97–2.32, p=0.069; tertile 3: aOR=1.64, 95% CI: 1.03–2.63, p=0.039].The link was stronger in participants without diabetes or obesity, with significant predictive values for SNHL presence (area under the ROC curve=0.716 and 0.753, respectively). Conclusion A higher TG/HDL-C ratio was significantly associated with SNHL in US adults aged 50–69 years, especially in those free from diabetes or obesity. These findings support considering TG/HDL-C as a useful marker for SNHL risk, highlighting the importance of combined metabolic and auditory health assessments.

Objective To understand the prevalence characteristics of influenza and changes of influenza virus strains,and provide reference for the prevention and control of influenza in the province.Methods Surveillance da-ta about influenza in Hunan Province from 2014 to 2023 were exported from China Influenza Surveillance Informa-tion System.Differences in the percentage of influenza-like illness(ILI)cases(percentage of influenza-like cases[ILI％]in outpatient and emergency department visits)among different years and different populations,as well as the positive rate of influenza virus in ILI specimens were compared.Results From 2014 to 2023,over 2.65 million cases of ILI were reported,with an ILI％of 4.70％.ILI％among different years presented statistically significant differences(P＜0.001).People aged 0-14 years old were the main population with ILI,accounting for 82.90％.The positive rate of influenza virus in ILI specimens was 14.14％,the positive rate of influenza virus among diffe-rent years and age groups were both significantly different(both P＜0.001).The main prevalent influenza strains from 2014 to 2023 included types A(H1N1),A(H3N2),B(Victoria),and B(Yamagata),alternating among di-fferent years.However,type B(Yamagata)strains were not detected from 2020 to 2023.There were basically two influenza prevalence seasons every year,namely winter-spring and summer.Conclusion People＜15 years old are the main population of influenza,and the prevalence peaks are in winter-spring and summer.From 2021 to 2023,the prevalence alternates mainly among 3 types:A(H1N1),A(H3N2),and B(Victoria).

Objective To study the stress change characteristics of the cervical disc after removing different ranges of the uncinate process by establishing a three⁃dimensional finite element model of the C

BACKGROUND:Osteonecrosis of the femoral head is one of the refractory diseases in orthopedic diseases.The natural collapse course of osteonecrosis of the femoral head under different stages and types affects the progression and prognosis of the disease. OBJECTIVE:To explore the progression of natural collapse within 5 years in patients under the different classifications of China-Japan Friendship Hospital(CJFH)with stage Ⅱ osteonecrosis of the International Association for Research Circulation Osseous(ARCO),and to analyze the collapse rate and collapse risk of the femoral head under the different classifications of CJFH. METHODS:A retrospective study was performed to select patients diagnosed with ARCO Ⅱ stage osteonecrosis of the femoral head without collapse in the Honghui Hospital Affiliated to Xi'an Jiaotong University from October 2016 to October 2017.According to whether it collapsed,the number of hips was divided into the collapse group(n=82)and the non-collapsed group(n=70).The collapse risk of patients with osteonecrosis of the femoral head under different CJFH classifications,as well as the collapse time,number of collapses,and collapse rate within 5 years were counted,and then the Kaplan-Meier survival curve of the femoral head under different classification of CJFH was plotted. RESULTS AND CONCLUSION:(1)A total of 97 patients with 152 hips were enrolled,and 82 hips collapsed during the follow-up period,with a total collapse rate of 53.9%,of which the collapse rates of M type,C type,L1 type,L2 type,and L3 type were 0.0%,36.7%,51.4%,72.2%,and 77.8%,respectively,and the comparison between the groups was statistically significant(P<0.05).(2)In terms of collapse risk,the collapse risk of L1 type was 1.704 times that of C-type(P>0.05),while the collapse risks of L2 type and L3 type were 3.866 times and 6.423 times that of C type(P<0.05),respectively.(3)In terms of the Kaplan-Meier survival curve,the median survival time of the femoral head of ARCO Ⅱ stage patients was 3 years,with a 95%confidence interval of 2.885-3.471 years,and the survival rates of the femoral head at the first,third and fifth years were 65.1%(99/152),50.7%(77/152),and 46.1%(70/152),respectively.(4)These findings conclude that different CJFH classifications affect the collapse rate of ARCO Ⅱ stage osteonecrosis of the femoral head patients,among which L3 type patients have the highest collapse rate,followed by L2 type and L1 type patients;C type patients have a lower collapse rate,and M type patients do not collapse,which indicates that the preservation of the lateral column of the femoral head is of great significance for the natural collapse course of osteonecrosis of the femoral head.