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1.
J Adolesc Health ; 2020 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-33121902

RESUMO

PURPOSE: Adolescents are particularly vulnerable during the COVID-19 quarantine periods and may be at risk for developing psychological distress symptoms that extend beyond a crisis, including depression. This study examined adolescents' postquarantine depressive symptoms associated with pandemic stressors. The primary aim was to identify potential protective factors that may buffer the association between the presence of COVID-19 cases in adolescents' communities and their postquarantine depressive symptoms. METHODS: Adolescents from public schools were recruited from Zhengzhou city, Henan, China (N = 1,487, Mage=13.14 years, 50% girls). Adolescents reported the presence of confirmed or suspected COVID-19 cases in their communities, their daily activities and routines during the 2-month quarantine period, and depressive symptoms after the quarantine period. RESULTS: The presence of cases in adolescents' communities during the quarantine contributed to more depressive symptoms in adolescents after the quarantine. This association was buffered by adolescents' spending more time on physical activities and better maintenance of daily living routines during the quarantine period. The presence of community infection was also more strongly associated with depressive symptoms in older adolescents. CONCLUSIONS: The presence of COVID-19 cases in communities contributed to adolescents' poorer mental health, and the association was stronger for older adolescents. Spending time on physical activities and maintaining daily living routines during the quarantine appear to be practical strategies that can be used by adolescents to mitigate the association between pandemic stressors and their diminishing mental health.

2.
Cancer Manag Res ; 11: 10455-10462, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31849534

RESUMO

Background: Oral squamous cell carcinoma (OSCC) is the predominant histological type of human oral cancer. In this study, we sought to investigate the functional role of lncRNA HCP5 in OSCC progression. Methods: The HCP5 and miR-140-5p expression level was determined in 73 paired OSCC tissues and their adjacent normal tissues. Knockdown or overexpression of HCP5 was conducted to investigate the effects of HCP5 on malignant behaviors of OSCC cells. Then, bioinformatic prediction and dual-luciferase reporter assay were conducted to study the interaction between HCP5 and miR-140-5p in OSCC. Results: Our results demonstrated that HCP5 expression was significantly increased in OSCC tissues and cell lines. High HCP5 level was associated with the aggressive clinicopathological characteristics and poor prognosis of OSCC patients. In vitro gain- and loss-of-function experiments showed that HCP5 overexpression promoted, whereas HCP5 knockdown inhibited the proliferation, migration, invasion and epithelial-mesenchymal transition (EMT) of OSCC cells. Mechanistically, we confirmed that HCP5 might serve as a competitive endogenous RNA (ceRNA) for miR-140-5p to alleviate the repression of its downstream target, SOX4, a master regulator of EMT. Furthermore, restoration of miR-140-5p expression diminished the oncogenic effects of HCP5 on OSCC cells. Conclusion: Overall, the present study indicated that HCP5/miR-140-5p/SOX4 axis might be a ponderable and promising therapeutic target for OSCC.

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