Publications by authors named "Gengzhen Chen"

Article Synopsis
  • ABAT, an enzyme involved in GABA metabolism, is underexpressed in liver cancer, correlating with worse patient survival and driving tumor growth and invasion.
  • * Overexpression of ABAT reduces GABA levels while increasing immune regulatory factors like IL-10 and TGF-β1, enhancing the activity of regulatory T cells (Tregs).
  • * Inhibiting ABAT reduces the effectiveness of CD8+ T cells in attacking tumors, suggesting that the ABAT/GABA axis plays a critical role in immune regulation within liver cancer.
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Gastrointestinal cancers pose a significant global health challenge. -glycosylation modulates various cellular processes, including key cancer-related mechanisms. Elucidating its involvement in the onset and advancement of these cancers can offer critical insights for enhancing diagnostic and therapeutic approaches.

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Background: Unintended (unwanted) pregnancy is a sexual and reproductive health issue with psychosocial consequences for the individual, their family, and society. However, the relationship between social support and related mental health issues, like depression and the effects of childhood adversity, is poorly studied. This study aims to explore the connections between childhood adversity, perceived social support, and depressive symptoms in pre-abortion women (women who have decided to have an abortion) in a clinical setting, based on the common risk factor approach and social support theory.

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Background: Liver cancer triggers a considerable number of global deaths. This work focused on mechanisms as well as impacts of ABAT in liver cancer.

Methods: Differentially expressed mRNAs in liver cancer were analyzed with The Cancer Genome Atlas (TCGA) database to determine and evaluate the prognostic significance of the target gene ABAT.

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Objective: This study aimed to examine the association of subjective and objective sleep quality with subsequent peptic ulcer rebleeding among older patients.

Methods: Of 1196 older patients with peptic ulcer bleeding (PUB) recruited from 12 grade A hospitals in the People's Republic of China, 1106 achieved full recovery from PUB, and they were followed up for up to 30 days. Using multiple measures at 1-week intervals, patients who presented PUB symptoms were invited to have an esophagogastroduodenoscopy examination.

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Objective: This study aimed to examine the association between social isolation, change in severity of depression, and subsequent recurrence of peptic ulcer disease (PUD) in older adults with mild cognitive impairment.

Methods: Older adults (≥55 years) with mild cognitive impairment and Helicobacter pylori-infected PUD (N = 2208) were recruited between 2010 and 2014 from 12 hospitals in the People's Republic of China. H.

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Objectives: To examine the longitudinal association between objective measure of sleep duration and subsequent recurrence of peptic ulcer disease (PUD) in older patients with mild cognitive impairment (MCI) and the potential influence of change in the severity of depression on this association.

Method: Older Chinese patients with MCI and ()-infected PUD ( = 2,208) were recruited from hospitals in the People's Republic of China between 2010 and 2014. was eradicated and PUD cleared in 2,015 patients by the end of 2014; 1,866 of these were followed for up to 48 months.

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Primary family caregivers of patients with dementia often experience high caregiver burden and significant decline in a range of health outcomes. The current study examined the relationship between medical comorbidities of inpatients with dementia and caregiver burden in adult-child primary caregivers, and the buffering effect of having a secondary caregiver on the relationship between patients' comorbidities and caregiver burden. The study is a secondary analysis of data from a cross-sectional observational study design.

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Objective: To examine whether baseline depression predicts subsequent peptic ulcer disease (PUD) in older people living alone and whether social engagement plays a role in such an association.

Methods: Between May 2010 and May 2015, 2, 850 older people living alone were recruited from eight Grade-A hospitals in the People's Republic of China and followed for up to 36 months. The Kaplan-Meier method was used to investigate how the incidence of PUD varied with depression and social engagement status.

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Objective: To examine the effect of subjective and objective sleep quality on subsequent recurrence of peptic ulcer disease (PUD) among older patients after Helicobacter pylori eradication.

Setting: Eight grade A hospitals in China.

Participants: Of 1689 older Chinese with H.

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This study aims to examine whether perceived poor sleep quality predicts subsequent recurrence of peptic ulcer disease (PUD) in older patients with mild cognitive impairment following Helicobacter pylori eradication and to investigate whether social engagement status alters this association. Of 1,689 older patients with H. pylori-infected PUD recruited from eight Grade-A hospitals in the People's Republic of China between 2011 and 2014, H.

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Article Synopsis
  • αvβ6 integrin is normally hard to detect in epithelial cells but is upregulated during wound healing and cancer, notably in certain carcinomas, though not previously in hepatocellular carcinoma (HCC).
  • TGF-β1 and lysophosphatidic acid (LPA) are shown to impact the progression of HCC and may regulate the expression of the Itgβ6 subunit.
  • The study establishes that Itgβ6 is expressed in HCC tissues and Hep-3B cells, and its expression is enhanced by TGF-β1 and LPA, revealing a regulatory region in the Itgβ6 gene promoter crucial for HCC development.
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Background: To assess the effect of an information leaflet on the level of Chinese youth's knowledge about hepatitis B and hepatocellular carcinoma (HCC), the most common type of primary liver cancer (PLC).

Materials And Methods: A total of 500 students, from two universities in the Chaoshan area of China, were randomly divided into an intervention group of 280 participants and a control group of 220. Baseline knowledge of HCC and hepatitis B was evaluated by questionnaire interview.

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Background: Previous studies on surgical team composition have shown that surgical team size had an independent impact on surgical performance in US and Canadian hospitals. We aimed to investigate the impact of team composition on surgical performance in two Chinese hospitals.

Methods: General surgery procedures performed from April 2011 to June 2012 were retrospectively reviewed to record the number of attendees in the operating room (OR) and the procedure time (PT).

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Background: Current staging methods do not accurately predict the risk of disease recurrence and benefit of adjuvant chemotherapy for patients who have had surgery for stage II colon cancer. We postulated that expression patterns of multiple microRNAs (miRNAs) could, if combined into a single model, improve postoperative risk stratification and prediction of chemotherapy benefit for these patients.

Method: Using miRNA microarrays, we analysed 40 paired stage II colon cancer tumours and adjacent normal mucosa tissues, and identified 35 miRNAs that were differentially expressed between tumours and normal tissue.

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Objective: To assess the level of an inpatient population's awareness about hepatitis and primary liver cancer (PLC), the most common type of which is hepatocellular carcinoma (HCC), and then to initiate education of this group.

Methods: A survey was conducted with 1300 participants within the inpatient unit in representative tertiary hospitals in the Chaoshan area of China. Structured questionnaires contained demographic data and statements about different aspects of liver cancer and hepatitis.

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Objective: To investigate the role of protein kinase C (PKC) in thrombin-induced monocyte chemoattractant protein-1(MCP-1) release by human lung fibroblasts (HLF-1).

Methods: Cultured human lung fibroblasts HLF-1 were incubated with different concentrations of PKC inhibitors before by thrombin stimulation. MCP-l protein levels in the supernatants were assessed using ELISA, and MCP-1 mRNA levels in the cell lysate were measured by quantitative real-time PCR.

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Objective: To evaluate the clinical application of different surgical approaches for endoscopic thyroidectomy and provide more rational treatment criteria.

Methods: Collect all randomized controlled trials, multi-center studies, clinical controlled trials, clinical trials and other comparative studies of endoscopic thyroidectomy with a large sample size in different databases through an established search strategy, make a systematic analysis of all the included literature.

Results: This study selected 12 publications for analysis from more than 800 articles: these included six publications describing cervical thyroidectomy (A) and six publications describing extra-cervical thyroidectomy (B).

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Objective: To construct a replication-defective adenovirus containing TK gene and investigate the killing effects of TK gene against human liver cancer cells SMMC-7721.

Methods: The recombinant adenovirus ADV-TK was constructed using homologous recombination in the cells. SMMC-7721 cells transfected with recombined adenovirus were exposed to GCV, and the cell viability was measured by MTT assays.

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Aim: To construct a phage display library of human single-chain variable fragment (scFv) antibodies associated with esophageal cancer and to preliminarily screen a scFv antibody against esophageal cancer.

Methods: Total RNA extracted from metastatic lymph nodes of esophageal cancer patients was used to construct a scFv gene library. Rescued by M13K07 helper phage, the scFv phage display library was constructed.

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