Triboelectric nanogenerators (TENGs) are devices that convert mechanical energy into electrical energy through the triboelectric effect, supplying power to a wide array of advanced sensing and monitoring systems. In this work, we utilized graphene-filled nanofibrous poly(vinylidene difluoride--hexafluoropropylene) (PVDF-HFP) as TENGs, employing electrospinning technology. We examined how the dielectric characteristics and transferred charge of the electrification mat affect the output of TENGs.
View Article and Find Full Text PDFHeliconia subulata is a common ornamental plant, it has been widely planted in southern China for greening parks, roads, and residential areas. H. subulata plants with spots on their leaves were observed in East Coast Wetland Park (18°16'53.
View Article and Find Full Text PDF(), a microbe commonly isolated from patients with vaginal tract infections, transforms from yeast to hyphae and produces many toxins, adhesins, and invasins, as well as biofilms resistant to antifungal antibiotic treatment. Effective agents against this pathogen are urgently needed. Antimicrobial peptides (AMPs) have been used to cure inflammation and infectious diseases.
View Article and Find Full Text PDFCowpea (Vigna unguiculata L.), a significant vegetable crop in China, holds particular prominence in the tropical island of Hainan. This region serves as the primary production area for the winter cultivation of cowpea.
View Article and Find Full Text PDFBackground: Acute pancreatitis (AP) is a disease featuring acute inflammation of the pancreas and histological destruction of acinar cells. Approximately 20% of AP patients progress to moderately severe or severe pancreatitis, with a case fatality rate of up to 30%. However, a single indicator that can serve as the gold standard for prognostic prediction has not been discovered.
View Article and Find Full Text PDFEur J Gastroenterol Hepatol
August 2023
Objective: This study aimed to investigate the effect of oleracein E (OE) in improving 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced ulcerative colitis (UC).
Methods: Lipopolysaccharide (LPS) was used to induce a UC cell model, and TNBS was used to induce a UC rat model. ELISA was performed to assess the levels of inflammatory factors (IL-1β, TNF-α, and IL-6).
Colorectal carcinoma (CRC) is the third most malignant tumor in the world, but the key mechanisms of CRC progression have not been confirmed. UBR5 and PYK2 expression levels were detected by RT-qPCR. The levels of UBR5, PYK2, and mitochondrial oxidative phosphorylation (OXPHOS) complexes were detected by western blot analysis.
View Article and Find Full Text PDFBackground: As a core part of the primary healthcare system, family doctor contract services (FDCS) may help healthcare providers promote cervical cancer screening to the female population. However, evidence from population-based studies remains scant. This study aimed to investigate the potential associations between the signing status of FDCS and cervical cancer screening practices in Shenzhen, China.
View Article and Find Full Text PDFBackground: Internet Addiction is positively associated with a range of psychological risk factors such as childhood trauma and sleep disorders. However, it remains unclear if sleep duration mediates the association between childhood trauma and Internet addiction.
Methods: We enrolled 14,263 students from Shenzhen Polytechnic College, China.
Capsular residual lens epithelial cells (CRLEC) undergo differentiation to fiber cells for lens regeneration or tansdifferentiation to myofibroblasts leading to posterior capsular opacification (PCO) after cataract surgery. The underlying regulatory mechanism remains unclear. Using human lens epithelial cell lines and the ex vivo cultured rat lens capsular bag model, we found that the lens epithelial cells secrete HSP90α extracellularly (eHSP90) through an autophagy-associated pathway.
View Article and Find Full Text PDFJ Affect Disord
February 2023
Background: Test anxiety is prevalent among adolescents and may have long-term negative consequences on their physical and mental health. The aim of this study was to assess the prevalence of test anxiety and its related attributing factors among adolescents in Shenzhen, China.
Methods: A cross-sectional study was conducted from November 18, 2020 to January 12, 2021 in Shenzhen, China.
Background And Purpose: Understanding the stroke mechanism of middle cerebral artery (MCA) atherosclerosis may inform secondary prevention. The aim of this study was to explore the relationship between vascular wall characteristics and infarction patterns using high-resolution magnetic resonance imaging (HRMRI) and diffusion-weighted imaging (DWI).
Methods: From November 2018 to March 2021, patients with acute ischemic stroke due to MCA atherosclerotic disease were retrospectively analyzed.
Background: Research gaps exist in addressing the psychological harm related to the cervical cancer screening. Anxiety is the most common distress driven by the screening procedures, which may be affected by past screening experience (PSE) but with uncertainty. This study aimed to evaluate the pre-procedural anxiety in cervical cancer screening and to identify the influence attributed to PSE.
View Article and Find Full Text PDFObjectives: Intimate partner violence (IPV) against women remains a major global public health problem with harmful consequences for individuals and society. People's lifestyles have been greatly affected by the COVID-19 pandemic. This study investigated the prevalence of and relationship between IPV and anxiety and depression in pregnant Chinese women during the pandemic.
View Article and Find Full Text PDFBackground: Little research has been conducted to explore variables associated with the healthcare providers' (HCPs) understanding and recommendation of human papillomavirus vaccine (HPV) since the vaccine was approved for use in China.
Methods: A large-scale cross-sectional survey was conducted in southern China covering Guangdong, Guangxi, and Hainan provinces between April 2019 and October 2019. Firstly, descriptive analysis was used to access awareness, knowledge, barriers, and recommendations toward HPV vaccine among all participants.
Emerging studies have proved that tRNA-derived fragments (tRFs) play vital roles in tumor metastasis; however, the function of tRFs in gastric cancer (GC) remains largely unclear. We investigated the role of tRF-24-V29K9UV3IU in growth and metastasis of GC using a xenograft mouse model. Differential gene expression downstream of tRF-24-V29K9UV3IU was identified by transcriptome sequencing, and interaction was then verified by a dual luciferase reporter and RNA immunoprecipitation.
View Article and Find Full Text PDFObjective: The aim of this study is to investigate the diagnostic ability of diffusion kurtosis imaging (DKI) -derived parameters combining with clinical data as risk factors for EMVI's involvement status in rectal adenocarcinoma.
Materials And Methods: Preoperative MR examination including DKI and conventional diffusion-weighted imaging (DWI) was performed on 154 rectal adenocarcinoma patients enrolled in this respective study. K, D, and apparent diffusion coefficient (ADC) values were calculated.
It is important to determine the mechanism of liver fibrosis for targeted therapy and the development of targeted therapies for liver fibrosis may offer promise for patients with liver disease. Long non‑coding RNAs (lncRNAs) serve a role in hepatic fibrosis. The lncRNA maternally expressed gene 3 (MEG3) has been confirmed to inhibit liver fibrosis.
View Article and Find Full Text PDFPsychological concerns caused by the COVID-19 pandemic become a public health crisis. It is noteworthy that the associations between COVID-19 related experiences and typical mental symptoms among pregnant women remain unclear. A cross-sectional online survey among pregnant women was conducted in Shenzhen, China.
View Article and Find Full Text PDFBackground: Pregnant women are emotionally vulnerable and have suffered great psychological impacts. Following the coronavirus disease 2019 (COVID-19) outbreak, a study was undertaken of the prevalence of, and factors contributing to, symptoms of anxiety and depression among pregnant women in Shenzhen, China.
Methods: A cross-sectional study on pregnant women was conducted from September to December 2020 in Shenzhen, using a random-recruit method.
Background: Limited population-based studies explore the utilization and associated barriers or facilitators to cervical cancer screening in China. We attempted to investigate the associations of socio-demographic factors, HPV specific knowledge with HPV testing behaviour in Shenzhen, China.
Methods: A citywide cross-sectional survey was conducted from January to June 2015 in Shenzhen city by using a multistage stratified cluster sampling method.
Liver cancer is one of the most common malignant tumors with no available satisfactory treatment. The aim of the present study was to investigate the anti-tumor effect of an irradiated hepatocellular carcinoma (HCC) whole-cell vaccine and its underlying mechanisms. Hepa1-6 and H22 HCC cell lines were irradiated in preparation for whole-cell vaccine production.
View Article and Find Full Text PDFBackground: Pregnant women often encounter psychiatric symptoms and declined sleep quality as pregnancy proceeds. The associations between sleep conditions and anxious and depressive symptoms among pregnant women remained to be investigated, particularly during the epidemic of COVID-19.
Methods: An online cross-sectional survey on pregnant women was conducted at the time period of fast increasing cases of COVID-19 in Shenzhen.