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1.
Article in Chinese | WPRIM | ID: wpr-883986

ABSTRACT

Objective:To investigate the cognitive status of the elderly in rural areas and explore the characteristics and influencing factors of subjective cognitive decline (SCD).Methods:A baseline survey was conducted among 5 765 rural elderly people aged 60 years old or above from March to September 2018.Subjective cognitive decline questionnaire(SCD-Q9), mini-mental state examination(MMSE), verbal fluency test (VFT), Chinese auditory verbal learning test (CAVLT), digital span test(DST)and activities of daily living(ADL)were used in the survey.The result of the survey indicated that there were 2 654 subjects with SCD (SCD group) and 1 008 subjects with normal cognitive function (NC group). Social support rating scale (SSRS) and short version of geriatric depression scale-15(GDS-15) were used to evaluate their psychosocial status.Descriptive analysis and Logistic regression analysis were conducted by SPSS 26.0 software.Results:(1) Compared with NC group, the SCD group had the following characteristics: delayed recognition rate(8.25 ±2.51), (12.38 ±2.53), reverse digit span (2.63±1.37), (3.69±1.45), social support (69.81±8.71), (64.40±9.44), GDS-15 (2.27±2.63), (1.31±2.17), and the differences were statistically significant (all P<0.05). However, there were no significant differences in the following characteristics: MMSE score (21.62±5.73), (21.47±5.84), speech fluency (27.80±7.35), (28.25±7.56), ADL score (20.70±1.35), (20.77±1.30), all P>0.05.(2) There were no significant differences in diet structure, blood glucose, blood lipid, cerebrovascular disease, diabetes, epilepsy and coronary heart disease between SCD group and NC group (all P>0.05). (3)SCD was mainly affected by age( β=0.06, OR=2.29, 95% CI=1.09-4.85), depression( β=-0.01, OR=2.96, 95% CI=0.68-4.94), hypertension( β=-0.17, OR=1.89, 95% CI=1.11-2.15), and low level of social support( β=2.07, OR=1.49, 95% CI=1.32-2.12) (all P<0.05). Conclusion:The scores of delayed recognition and reverse digit span in patients with SCD are lower than those with normal cognitive function.The other objective cognitive functions are basically normal.Old age, low social support level, depression, low education level and hypertension are the risk factors of SCD.

2.
Article in Chinese | WPRIM | ID: wpr-566796

ABSTRACT

There is an independent-regulated renin-angiotensin system(RAS)in kidney.Most of patients with hypertension or kidney diseases present increased renal RAS activity,which maintains body water and sodium balance,but contributes to the occurrence of hypertension and renal damage progression.The article reviewes some recent basic and clinical researches,focusing on the renal RAS activation mechanisms,consequences and clinical significance of the intervention of RAS blockers,which may help us recognize local RAS function of kidney,explore the treatment strategies to control hypertension and slow chronic kidney disease progression.

3.
Article in Chinese | WPRIM | ID: wpr-527183

ABSTRACT

AIM: To explore the effects of homocysteine on the apoptosis in PC12 cells and the relationship between the apoptosis and the expression of the bcl-2 as well as bax gene. METHODS: Cell viability was determined by MTT assay. Cell apoptosis was assessed by phase-contrast microscope, fluorescence microscopy and flow cytometry (FCM). The expression of bcl-2 and bax mRNA was measured by semiquantitative reverse transcription polymerse chain reaction (RT-PCR). RESULTS: Treatment of PC12 cells with Hcy plus 10 ?mol/L copper for 12 h, in the range of 0.125, 0.25, 0.5, 1.0 mmol/L, caused a great decrease in cell viability: 81%, 79%, 69%, 57%, and induced typical morphological changes of apoptosis in a dose-dependent manner. The apoptosis ratios were respectively 8.00%, 10.37%, 17.26% and 20.19%, respectively. The expression of bcl-2 was significantly decreased (from 0.517 to 0.198) whereas bax was significantly increased (from 0.302 to 0.619). CONCLUSION: Homocysteine plus copper may induce apoptosis in PC12 cells through the down-regulation of bcl-2 and the up-regulation of bax gene expression.

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