Associations between short-term exposure to ambient PM2.5 and incident cases of cardiovascular disease in Yantai, China.

There are limited studies investigating the association between short-term exposure to PM2.5 and incident cardiovascular disease (CVD) cases in China. This study aims to examine the short-term effects of PM2.5 on the incidence of cardiovascular diseases. A combination of Poisson-distribution generalized linear model and distributed lag non-linear model was used to examine the association between short-term exposure to PM2.5 and incident cases of CVD. The results revealed that per 10 µg/m3 increment of PM2.5 would increase the incident CVD cases by 0.147% (Relative Risk: 1.00147, 95% Confidence Interval: 1.00008-1.00286) at a lag of 2 days. The stratified analyses showed higher effects risk in females, older residents (aged 60-75 years), and acute myocardial infarction group (p-value for difference <0.05). This study indicates that short-term exposure to PM2.5 may increase the risk of CVD and highlights the necessity for a higher air quality standard in Yantai, China.

Application value of the treatment of breast cancer bone metastases with radioactive seed 125I implantation under CT-guidance.

BACKGROUND: To investigate the application value of the treatment of breast cancer bone metastases with radioactive seed 125I implantation under CT-guidance. METHODS: A total of 90 patients with breast cancer admitted to our hospital from January 2017 to January 2018 were selected as the research objects and were divided into control group and experimental group according to random grouping, with 45 cases in each group. Conventional treatment was used in the control group, while the treatment of radioactive seed 125I implantation under CT-guidance was used in the experimental group. The clinical efficacy, pain intensity and levels of carcinoembryonic antigen (CEA), carcinoembryonic antigen 153 (CA153), carbohydrate antigen (CA125) in the two groups were compared. RESULTS: As for the pain intensity, it was evidently lower in the experimental group after treatment than that in the control group (P < 0.05); as for the total effective rate, it was obviously higher in the experimental group after treatment than that in the control group (P < 0.05); as for the levels of CEA, CA153 and CA125, the data in the experimental group after treatment were much lower than the control group (P < 0.05). CONCLUSION: Radioactive seed 125I implantation under CT-guidance can effectively improve the effect of the treatment of breast cancer bone metastases. It has curative efficacy and it is worth promoting and using.

Homoharringtonine Inhibits Alzheimer's Disease Progression by Reducing Neuroinflammation via STAT3 Signaling in APP/PS1 Mice.

BACKGROUND: Accumulating evidence suggests an implication of neuroinflammation in Alzheimer's disease (AD) pathogenesis. Homoharringtonine (HHT) is an antitumor reagent with anti-inflammatory activity. This study investigates whether and how HHT plays a role in disease progression in a mouse AD model. METHODS: HHT was injected into APP/PS1 mice every other day for 6 months. The effects of HHT on cognitive function were assessed by behavioral assays. ß-Amyloid accumulation was assessed by ELISA analysis of Aß40 and Aß42. Neuronal loss and synaptic function were determined by levels of NeuN, synaptophysin, and PSD95. Neuroinflammation was assessed by glial markers and pro-inflammatory cytokines. Signal transducer and activator of transcription 3 (STAT3) signaling was evaluated by phosphorylated STAT3 and SOCS3 expression. RESULTS: We found that HHT at 2 mg/kg significantly alleviated cognitive deficits in APP/PS1 mice. HHT reduced soluble and insoluble Aß40 and Aß42 accumulation and attenuated the impairments of synaptic function in the AD mouse hippocampus. Finally, HHT inhibited neuroinflammation, suppressed STAT3 activation, and increased SOCS3 expression in the APP/PS1 mouse hippocampus. CONCLUSION: Our results indicate that HHT inhibits disease progression in APP/PS1 mice by suppressing neuroinflammation through modulating the STAT3 signaling. Our findings suggest that HHT may potentially be used for preventing or slowing down AD pathogenesis and warrants further investigation.

Epidemic characteristics of main infectious diseases in Yantai city between 2010 and 2012 and prevention strategy research.

To investigate the epidemic characteristics and prevention strategies of main infectious diseases. From 2010 to 2012, 23 notifiable diseases were reported in Yantai with average reported cases of 17,376. The morbidity was the highest in 2012 and the lowest in 2011. The accumulated death toll was 101 with the highest death rate in 2011 and the lowest in 2012. Major class A and B infectious diseases included viral hepatitis, phthisis, syphilis, clap and dysentery. The major class C infectious disease was hand-foot-and-mouth disease every year. The distribution of transmission routes of HIV/AIDS among patients with HIV and AIDS in Yantai were investigated. The overall condition of phthisis in Yantai showed stable with slight decrease. The occurrence rate of phthisis every season had fluctuation with higher rate in middle two seasons and lower rate at the beginning and end. The major type of viral hepatitis was still hepatitis B. Patients with hand-foot-and-mouth disease were children under 5 years old accounting for 90.56%, mainly reported in May, June, July and August. At present, the condition of plague prevention for infectious diseases in Yantai is not optimistic with both new and old infectious diseases.

Estimation of salt intake by 24-hour urinary sodium excretion: a cross-sectional study in Yantai, China.

BACKGROUND: High levels of dietary sodium are associated with raised blood pressure and adverse cardiovascular health. To determine baseline salt intake, we investigated the average dietary salt intake from 24-hour urinary sodium excretion with a small sample of Yantai adults in the Shandong province of China. METHODS: One hundred ninety one adults aged 18-69 years were randomly selected from the Yantai adult population. Blood pressure, anthropometric indices and sodium excretion in a 24-hour urine collection were measured. Consumption of condiments was derived from 3-day weighted records. Completeness of urine collections was verified using creatinine excretion in relation to weight. RESULTS: The mean Na and K outputs over 24 hours were 201.5 ± 77.7 mmol/day and 46.8 ± 23.2 mmol/day, respectively (corresponding to 11.8 g NaCl and 1.8 g K). Overall, 92.1% of the subjects (96.9% of men and 87.1% of women) had intakes of over 6 g salt (NaCl)/d. The main sources of salt intake from weighed condiments records were from home cooking salt (74.7%) followed by soy sauce (15.0%). Salt intake from condiments and salt excretion were weakly correlated((r = 0.20, p = 0.005).A positive linear correlation between salt intake was associated with systolic blood pressure in all adjusted and unadjusted model (r = 0.16, p = 0.01). Each 100 mmol/day increase in sodium intake was associated with a 4.0 mmHg increase in systolic blood pressure. CONCLUSION: Dietary salt intake in Yantai adults was high. Reducing the intake of table salt and soy sauce used in cooking will be an important strategy to reduce sodium intake among Yantai adults.

Associations between short-term exposure to ambient PM2.5 and incident cases of cerebrovascular disease in Yantai, China.

There are limited studies examining the association between PM2.5 exposure and incident cerebrovascular disease (CD) cases in China. In this study, daily counts of incident CD cases and daily PM2.5 concentrations were obtained in Yantai, Shandong Province, China from 2014 to 2019. We used a combination of the Poisson-distribution generalized linear model (GLM) and a distributed lag nonlinear model (DLNM) to examine the association of short-term exposure to ambient PM2.5 and incident cases of CD. The results revealed that for every 10 µg/m3 increment of PM2.5 would increase the incident CD cases by 0.216% (RR:1.00216, 95%CI:1.0016-1.0028) at lag4. The stratified analysis demonstrated that the females and residents aged 65 years or above presented higher short-term PM2.5-associated CD risks than the males and aged below 65 years. Targeted prevention strategies should be adopted to reduce the PM2.5-related CD burden, especially for the susceptible population in China.

Study on the effect of AIDS health education in universities based on structural equation model / 中国学校卫生

Objective@#Based on the information-motivation-behavioral skills (IMB) model theory, the structural equation model(SEM)was used to analyze the effect of using new media to carry out AIDS health education among young students.@*Methods@#Stratified random cluster sampling method was used to select 2 561 students from four colleges in Yantai to conduct a questionnaire survey, and to carry out various forms of new media AIDS health education for the intervention group. Data were analyzed with structural equation model.@*Results@#After intervention，the awareness rate of AIDS were 85.9% and 94.0% respectively(χ2=46.67，P<0.01). The structural equation model fits well, and the fitted indices were: RMSEA=0.04, GFI=0.97, AGFI=0.96, IFI=0.97, CFI=0.98. The direct effects of new media interventions on prevention information and prevention motivation were 0.30 and 0.65 respectively. The influence of information and motivation on preventive behavior was mainly reflected through the indirect effect of behavioral skills. The overall effects of standardization were 0.09 and 0.29 respectively. The overall effect of behavioral skills on preventive behavior was 0.80, which was the main factor affecting HIV prevention behavior.@*Conclusion@#The use of new media to carry out AIDS health education among young students had a significant effect. Motivation promotion should be used as a new breakthrough point for future work, and information, motivation, and behavioral skills should be used to promote the prevention of AIDS prevention among young students.