1.Impact of social support on disease acceptance in stroke patients based on moderated mediating effect
Yahao REN ; Yiyang WANG ; Xiaoxuan QIAO ; Yuxia LI
Chinese Journal of Modern Nursing 2024;30(33):4574-4579
Objective:To explore the impact of social support, self-efficacy, and neurological function on disease acceptance in stroke patients.Methods:From September 2022 to February 2023, convenience sampling was used to select 322 stroke patients from Shanghai Hospital of Traditional Chinese Medicine and Yueyang Hospital of Integrated Traditional Chinese and Western Medicine as participants. The survey was conducted using the General Information Questionnaire, Perceived Social Support Scale (PSSS), Stroke Self-Efficacy Questionnaire (SSEQ), Acceptance of Illness Scale (AIS), and National Institute of Health Stroke Scale (NIHSS) .Results:The AIS, PSSS, SSEQ, and NIHSS scores of stroke patients were (21.88±10.66), (52.64±13.80), (73.92±28.91), and (5.37±3.64), respectively. Social support of patients had a positive impact on disease acceptance ( P<0.01). Self-efficacy partially mediated the relationship between social support and disease acceptance, with indirect effects accounting for 48.84% of the total effect. The second half of the mediating effect of "social support→self-efficacy→disease acceptance" (self-efficacy→disease acceptance) was regulated by neurological function ( β=-0.020, P<0.01) . Conclusions:Medical and nursing staff can increase patients' social support, enhance their self-efficacy, and strengthen targeted interventions for patients with high levels of neurological deficits, thereby improving their disease acceptance.
2.The effects of β-hydroxybutyrate on p75NTR mRNA and protein expression in Aβ-treated SH-SY5Y cells and mechanisms involved
Yanqiu CHEN ; Jingzhu ZHANG ; Yahao REN ; Xiaoyue WEI ; Jun LI ; Li AN
Chinese Journal of Geriatrics 2018;37(3):318-323
Objective To investigate the effect and mechanisms of β hydroxybutyrate (βOHB) regulation on p75NTR expression in Alzheimer's disease (AD) model cells.Methods First,cultured SH-SY5Y cells were exposed to Aβ (final concentrations:10,20,40,80 μmol/L) with or without 5 mmol/L βOHB pretreatment,and sham-treated cells were used as the control.At 24 h after treatment,the viability of cells was determined by the MTT assay.Secondly,cultured cells were divided into four groups.Cells in the Aβ group were exposed to Aβ (final concentration:20 μ mol/L)with or without 5 mmol/L βOHB pretreatment.Cells in the βOHB group were treated only with 5 mmol/L βOHB,and sham treated cells were used as the control.At 6 h and 24 h after treatment,the expression of p75NTR,HDAC1/2 mRNA and its protein expression,and p65 protein expression were measured by qRT-PCR or Western blot.Finally,the expression of p75NTR mRNA and protein was analyzed in cultured cells after silencing HDAC1 / 2 with siRNA.Results The viability of cells with 40 μmol/L or 80 μmol/L treatment was lower than that in the control group (P<0.01),and there was a significant increase (P<0.01) in cell viability of the βOHB intervention group,compared with the Aβ group.At 6 h or 24 h after treatment,the expression of p75NTR mRNA,its protein expression,and p65 protein expression were clearly increased in the βOHB group (P<0.05) and markedly decreased (P<0.01) in the Aβ group,compared with the control.Additionally,the expression of HDAC1 / 2 mRNA and protein was higher (P<0.01) in the Aβ group at 6h or 24h after treatment and lower(P<0.05 or P<0.01)in the βOHB group at 6 h after treatment than in the control group.Compared with the Aβ group,there were significant increases (P<0.01) observed in p75NTR mRNA,its protein expression,and p65 protein expression,and a notable decrease (P<0.05) in HDAC1 / 2 mRNA and protein expression in cells of the βOHB intervention group at 6 h and 24 h after treatment.The expression of p75NTR mRNA and protein increased in HDAC1 knock-down cells compared with the control (P<0.05).However,no difference was found in p75NTR expression in HDAC2 knock-down cells (P>0.05).Conclusions βOHB up-regulates p75NTR expression by inhibiting HDAC1 of βOHB.It also activates p65 and prevents the decrease of cell viability.