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INTRODUCTION: The prevalence and risk factors for subjective cognitive decline (SCD) and its correlation with objective cognition decline (OCD) among community‐dwelling older adults is inconsistent. METHODS: Older adults underwent neuropsychological and clinical evaluations to reach a consensus on diagnoses. RESULTS: This study included 7486 adults without mild cognitive impairment and dementia (mean age: 71.35 years [standard deviation = 5.40]). The sex‐, age‐, and residence‐adjusted SCD prevalence was 58.33% overall (95% confidence interval: 58.29% to 58.37%), with higher rates of 61.25% and 59.87% in rural and female subgroups, respectively. SCD global and OCD language, SCD memory and OCD global, SCD and OCD memory, and SCD and OCD language were negatively correlated in fully adjusted models. Seven health and lifestyle factors were associated with an increased risk for SCD. DISCUSSION: SCD affected 58.33% of older adults and may indicate concurrent OCD, which should prompt the initiation of preventative intervention for dementia. Highlights: SCD affects 58.33% of older adults in China.SCD may indicate concurrent objective cognitive decline.Difficulty finding words and memory impairments may indicate a risk for AD.The presence of SCD may prompt preventative treatment initiation of MCI or dementia.Social network factors may be initial targets for the early prevention of SCD. [ABSTRACT FROM AUTHOR]

Introduction: The prevalence and risk factors for subjective cognitive decline (SCD) and its correlation with objective cognition decline (OCD) among community-dwelling older adults is inconsistent., Methods: Older adults underwent neuropsychological and clinical evaluations to reach a consensus on diagnoses., Results: This study included 7486 adults without mild cognitive impairment and dementia (mean age: 71.35 years [standard deviation = 5.40]). The sex-, age-, and residence-adjusted SCD prevalence was 58.33% overall (95% confidence interval: 58.29% to 58.37%), with higher rates of 61.25% and 59.87% in rural and female subgroups, respectively. SCD global and OCD language, SCD memory and OCD global, SCD and OCD memory, and SCD and OCD language were negatively correlated in fully adjusted models. Seven health and lifestyle factors were associated with an increased risk for SCD., Discussion: SCD affected 58.33% of older adults and may indicate concurrent OCD, which should prompt the initiation of preventative intervention for dementia., Highlights: SCD affects 58.33% of older adults in China. SCD may indicate concurrent objective cognitive decline. Difficulty finding words and memory impairments may indicate a risk for AD. The presence of SCD may prompt preventative treatment initiation of MCI or dementia. Social network factors may be initial targets for the early prevention of SCD., (© 2023 The Authors. Alzheimer's & Dementia published by Wiley Periodicals LLC on behalf of Alzheimer's Association.)

Objective: To investigate the effect of Yi Fu Ning Soft Gelatin Capsules (YFN) on reproductive endocrine-immune function of ovariectomized rats., Methods: 60 3-month old female Sprague-Dawley rats were used, 50 of them were ovariectomized and randomly divided into 5 groups: ovariectomizy (OVX) group, OVX with diethylstilbestrol tablets (DT) group, OVX with YFN (high dose, middle dose and low dose) group. The others were sham-operated group. The rats were administrated initially in the 4th week after the operation. After drugs had been given for 12 weeks the rats were sacrificed, blood serum hormone, IL-2 content and T lymphocyte subpopulation were detected with methods radioimmunoassay and flow cytometry (FCM)., Results: (1) Compared with sham group, the level of serum E2, Te and P significantly decreased (P < 0.01), FSH, LH content significantly increased; Blood T lymphocyte subpopulation CD3+ cells, CD4+ cells and CD4+/CD8+ ratio significantly decreased, serum IL-2 content also significantly decreased (P < 0.01). (2) Compared with model group, after treated by YFN, the level of serum E2 and P significantly increased (P < 0.01), serum FSH and LH content significantly decreased; T lymphocyte subpopulation CD3+ cells, CD4+ cells and CD4+/CD8+ ratio were improved significantly and serum interleukin-2 (IL-2) content increased significantly., Conclusion: YFN can increase serum sexual hormone content,reduce the level of FSH and LH, and improve imbalanced T lymphocyte subpopulation, stimulate IL-2 excretion, which means YFN can regulate inordinate reproductive endocrine-immune network in ovariectomized rats.

Objective: To study the effect of the mixture of Rhizoma Curcumae (YFN) and Oviducts Ranae on serum estrogen and spleen estrogen receptor expressions and its effect on reproductive endocrine-immune network in ovariectomized (OVX) rats., Methods: Female SD rat models of climacteric syndrome (CS) were established by ovariectomy. After administration of YFN in the rats for 12 consecutive weeks, the serum estrogen levels (E2, FSH, LH, T, and P) and interleukin-2 were determined using radioimmunoassay, and the expression levels of estrogen receptor in the spleen were detected with immunofluorescence assay., Results: The serum E2, T, P, and interleukin-2 levels (P<0.01) and spleen estrogen receptor expression (P<0.05) were significantly increased after high-dose YFN administration in the OVX rats as compared with the levels in the untreated OVX rats. YFN also resulted in lowered serum FSH and LH levels, but the changes were not statistically significant., Conclusion: YFN can increase the serum estrogen levels and estrogen receptor expression in the spleen of OVX rats, suggesting its clinical potential for relieving CS.

The viral spike protein is the main surface antigen of the coronavirus, and it could be useful in the research of clinical diagnosis, SARS vaccine and the structure biology.According to the analysis of the main antigen of the SARS spike protein, 5 fragments of the whole spike gene were cloned, and ligated to the vector pNMT1. Through electroporation transformantion to TCP1, the recombinant S. pombe strains capable of expressing the 5 fragments were constructed. SDS-PAGE or Western blot analysis of the induced expression products demonstrated that the 5 recombinant proteins were expressed in the fission yeast respectively.