RESUMO
This study employs Reflexive Thematic Analysis to explore youth expressions of suicide on Bilibili, a video platform popular among young audiences. By analyzing comments from three vloggers who died by suicide, the research identified 42 initial codes, leading to 19 themes and seven sub-themes, categorized into three main domains: Perspectives on Suicide, Perspectives on Life, and Perspectives on Death. The "Perspectives on Suicide" domain mainly includes individual assessments, attitudes toward suicide, and attributions of suicide behaviors. "Perspectives on Life" encompasses insights shaped by personal experiences, whereas discussions on death, less frequent, focus on perceptions of death and assumptions about the afterlife. The content reflects a blend of traditional Chinese views and a noticeable shift toward individualism, with the internet playing a significant role in stimulating discussions on suicide and facilitating the expression and exchange of related views. These findings provide critical insights for organizations developing effective suicide prevention strategies.
RESUMO
The aim of this study is to investigate the effects of Gynostemma pentaphyllum dried with two different methods(air drying and heating) on inflammation in acute lung injury(ALI) mice in vivo and in vitro. Lipopolysaccharide(LPS) was sprayed into the airway of wild type C57BL/6J male mice to establish the model, and the drug was injected into the tail vein 24 h after modeling. Lung function, lung tissue wet/dry weight(W/D) ratio, the total protein concentration, interleukin 6(IL-6), IL-1ß, and tumor necrosis factor-α(TNF-α) in the bronchoalveolar lavage fluid(BALF), and pathological changes of the lung tissue were used to evaluate the effects of different gypenosides on ALI mice. The results showed that total gypenosides(YGGPs) and the gypenosides substituted with one or two glycosyl(GPs_(1-2)) in the air-dried sample improved the lung function, significantly lowered the levels of IL-1ß and TNF-α in BALF, and alleviated the lung inflammation of ALI mice. Moreover, GPs_(1-2) had a more significant effect on inhibiting NO release in RAW264.7 cells. This study showed that different drying methods affected the anti-inflammatory activity of G. pentaphyllum, and the rare saponins in the air-dried sample without heating had better anti-inflammatory activity.
Assuntos
Gynostemma , Fator de Necrose Tumoral alfa , Masculino , Camundongos , Animais , Fator de Necrose Tumoral alfa/metabolismo , Camundongos Endogâmicos C57BL , Pulmão , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/metabolismo , Interleucina-6/metabolismo , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Lipopolissacarídeos/farmacologiaRESUMO
In the era of social media, the influence of food exploration bloggers is increasingly apparent. Sharing their culinary experiences stimulates the audience's interest in visiting and consuming food destinations. This paper seeks to understand how the characteristics of food exploration bloggers on the Douyin platform influence audience perceptions of food and locations and how these perceptions may relate to visiting intentions, using the stimulus-organism-response (SOR) model. A cross-sectional online survey analyzed responses from 437 individuals interested in food exploration videos on Douyin. The results indicate that source credibility is significantly associated with the stimulation of taste desires and the formation of taste awareness. The audience's taste desire and taste awareness are positively linked to the intention to visit. This study contributes to the expansion of the SOR model's application in digital media, underscoring the substantial role of social media in influencing audience consumption intentions. It highlights that as an effective communication tool, social media can significantly impact users' behavioral responses and consumption decisions.
RESUMO
BACKGROUND: NOP2/Sun domain 2 (NSUN2) is one of the important RNA methyltransferases catalyzing 5-methylcytosine (m5C) formation and participates in many critical bioprocesses. However, the roles and underlying molecular mechanisms of NSUN2-mediated m5C modification in colorectal cancer (CRC) remain unclear. METHODS: To explore the NSUN2 expression in CRC, fresh tissue samples were collected and Nsun2 knockout mouse was constructed. In vitro and in vivo functional assays were conducted to assess the role of NSUN2. RNA array and bisulfite sequencing were used to investigate the potential targets. The mechanisms of NSUN2 function on SKIL were identified by m5C-methylated-RNA immunoprecipitation and RNA stability assays. Additionally, tissue microarray analysis was conducted and patient-derived tumour xenograft mouse (PDX) models were used to define the potential therapeutic targets. RESULTS: NSUN2 was highly expressed in CRC and correlated with poor CRC patient survival. Moreover, silencing NSUN2 suppressed CRC tumourigenesis and progression in Nsun2 knockout mouse models. In vitro and in vivo studies suggested that NSUN2 promoted colorectal cancer cell growth. Mechanistically, SKI-like proto-oncogene (SKIL) is positively regulated by NSUN2, and the NSUN2-SKIL axis is clinically relevant to CRC. NSUN2 induced m5C modification of SKIL and stabilized its mRNA, which was mediated by Y-box binding protein 1 (YBX1). Elevated SKIL levels increased transcriptional coactivator with PDZ-binding motif (TAZ) activation. CONCLUSIONS: Our findings highlight the importance of NSUN2 in the initiation and progression of CRC via m5C-YBX1-dependent stabilization of the SKIL transcript, providing a promising targeted therapeutic strategy for CRC.