(Orchidaceae), is a new species discovered in the Shibali Long Canyon National Nature Reserve, Zhuxi County, Hubei Province, China. It is morphologically similar to and , but differs in having an oblong, simple labellum with a slightly involute margin, an upcurved apex, and a spur shorter than the ovary. Molecular phylogenetic analyses, using nuclear (nrITS) and plastid (combined , , , and ) DNA sequences, confirm that is closely related to and , supporting its recognition as a new species in the H.
View Article and Find Full Text PDFBackground And Study Aims: Circular RNAs (circRNAs) are important regulators for gastric cancer (GC) progression. Our study aims to investigate the role and mechanism of circFLNA in GC progression.
Patients And Methods: The levels of circFLNA, microRNA (miR)-1200 and SRY-box transcription factor 5 (SOX5) were examined using qRT-PCR.
Hyalinizing clear cell carcinomas (HCCCs) are infrequent, malignant tumors characterized by their low-grade nature. They typically originate from minor salivary glands. However, these tumors can potentially emerge in any location with minor salivary glands, including the nasopharynx.
View Article and Find Full Text PDFBackground: Refractive errors, particularly myopia, are the leading visual disorders worldwide, significantly affecting the quality of life (QOL) even after correction. This scoping review focuses on health-related quality of life (HRQOL) measurements for children and adolescents with refractive errors.
Main Text: We explored generic and disease-specific HRQOL tools, examining their content, psychometric properties, and the impact of various interventions on QOL.
Sepsis, a complex clinical syndrome characterized by an exaggerated host response to infection, often necessitates hospitalization and intensive care unit admission. Delayed or inaccurate diagnosis of sepsis, coupled with suboptimal treatment strategies, can result in unfavorable outcomes, including mortality. Maresins, a newly discovered family of lipid mediators synthesized from docosahexaenoic acid by macrophages, have emerged as key players in promoting inflammation resolution and the termination of inflammatory processes.
View Article and Find Full Text PDFBackground: The FXYD family of ion transport regulators have emerged as important modulators of cancer progression and metastasis. However, their expression and roles in ovarian cancer (OCa) have not been systematically investigated.
Methods: The expression of FXYD genes in OCa was analyzed using data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO), as well as independent clinical samples.
Tandospirone, a third-generation of antianxiety agent with fewer side effects, has been widely used in the treatment of anxiety. Moreover, it is interesting that tandospirone has been found to relieve gastrointestinal symptoms in patients with refractory irritable bowel syndrome who also have psychological dysfunctions. However, the underlying mechanism remains unclear.
View Article and Find Full Text PDFCancer Control
February 2022
Objective: Studies have published the association between the expression of matrix metalloproteinases (MMPs) and the outcome of cervical cancer. However, the prognostic value in cervical cancer remains controversial. This meta-analysis was conducted to evaluate the prognostic functions of MMP expression in cervical cancer.
View Article and Find Full Text PDFRWP-RK is a plant-specific family of transcription factors, involved in nitrate response, gametogenesis, and nodulation. However, genome-wide characterization, phylogeny, and the regulation of RWP-RK genes in the nodulating and non-nodulating plant species of nitrogen-fixing clade (NFC) are widely unknown. Therefore, we identified a total of 292 RWP-RKs, including 278 RWP-RKs from 25 NFC species and 14 RWP-RKs from the outgroup, .
View Article and Find Full Text PDFNeural progenitor proliferation, neuronal migration, areal organization, and pioneer axon wiring are critical events during early forebrain development, yet remain incompletely understood, especially in human. Here, we studied forebrain development in human embryos aged 5 to 8 postconceptional weeks (WPC5-8), stages that correspond to the neuroepithelium/early marginal zone (WPC5), telencephalic preplate (WPC6 & 7), and incipient cortical plate (WPC8). We show that early telencephalic neurons are formed at the neuroepithelial stage; the most precocious ones originate from local telencephalic neuroepithelium and possibly from the olfactory placode.
View Article and Find Full Text PDFNeurogastroenterol Motil
August 2019
Background: Long-term stress was suggested to cause visceral hypersensitivity and promote functional gastrointestinal disorders (FGIDs). Some brain regions such as the anterior cingulate cortex (ACC) may play an important role for generating visceral hypersensitivity; however, its molecular mechanisms are not clear. This study aimed to explore the role of 5-HT1A receptors (HTR1As) in activating ACC and corresponding mechanism, in stress-induced visceral hyperalgesia rats.
View Article and Find Full Text PDFEndometriosis is a common gynecological disease with manifestations of endometrial-like tissue outside the uterus. Transforming growth factor-β (TGF-β) is known to facilitate a series of biological events in many cells, including migration. However, the roles of TGF-β in endometriosis still remain largely unknown.
View Article and Find Full Text PDFClin Exp Pharmacol Physiol
November 2018
Endometrial polyps (EPs) are outgrowths in the endometrium with unknown etiology. The fact that EPs can often recur after surgical removal suggests that EPs are not induced by random events but by continuous or recurrent processes in patients. We previously demonstrated that the risk of EP development was positively associated with overactive Th17 responses.
View Article and Find Full Text PDFAims: To explore the risk factors for rebleeding in acute nonvariceal upper gastrointestinal bleeding patients with high-risk stigmata after endoscopic hemostasis and to develop a new scoring system for them.
Methods: A retrospective single-center study was conducted from January 2012 to June 2017. The logistic regression model was used to explore risk factors of poor clinical outcomes.
Clin Exp Pharmacol Physiol
June 2018
Endometrial polyps (EPs) are localized benign overgrowths at the endometrium, with currently unknown aetiology and pathogenesis. Although symptoms of EP can be alleviated or resolved by hysteroscopic polypectomy, a significant fraction of individuals develop recurrent EPs after initial EP removal. In rare cases, EPs may also undergo malignant transformation.
View Article and Find Full Text PDFJ Neurogastroenterol Motil
April 2017
Background/aims: Early adverse life events (EALs) are relevant to irritable bowel syndrome in adulthood. Maternal separation (MS), as one of the EALs, has proved to induce visceral hypersensitivity in adult rats. However, the effect of MS on visceral hypersensitvity from the post-weaning period to adulthood remains unknown.
View Article and Find Full Text PDFGastroenterol Res Pract
December 2014
Background/Aims. Patients with type II diabetes mellitus (DM) were known to have higher prevalence of gastroesophageal reflux disease (GERD) in the Western countries, but data on the impact of GERD on DM patients in our country are scarce. The aim of this study was to evaluate the prevalence of GERD in type II DM patients in Shanghai, China, and to explore its possible risk factors.
View Article and Find Full Text PDFAbnormal processing of visceral sensation at the level of the central nervous system has been proven to be important in the pathophysiologic mechanisms of stress related functional gastrointestinal disorders. However, the specific mechanism is still not clear. The insular cortex (IC) was considered as one important visceral sensory area.
View Article and Find Full Text PDFMultiple cytosine guanine dinucleotides (CpG island) are found in the VIM promoter region. The levels of VIM promoter methylation and VIM gene expression were investigated in 7 cervical cancer cell lines and 50 human tissue samples with a distinctive degree of malignant trans-formation. While multiple CpG sites in the VIM promoter were highly methylated in CIN III and invasive carcinoma cells, they were rarely methylated in normal cells.
View Article and Find Full Text PDFIt is well known that the Homo sapiens LIM homeobox domain 6 gene (hLHX6), a putative transcription regulator, controls the differentiation and development of neural and lymphoid cells, particularly in the central nervous system. In this study, we investigated hLHX6.1 (an isoform of hLHX6), which functions as a tumor suppressor gene in the cervix.
View Article and Find Full Text PDFThe ADCYAP1 gene encodes an adenylate cyclase activating polypeptide 1. ADCYAP1 has been known to be involved in various biological processes. Multiple cytosine guanine dinucleotides (CpG island) are found in the ADCYAP1 promoter region.
View Article and Find Full Text PDFBackground: Klotho was originally characterized as an anti-aging gene that predisposed Klotho-deficient mice to a premature aging-like syndrome. Recently, KLOTHO was reported to function as a secreted Wnt antagonist and as a tumor suppressor. Epigenetic gene silencing of secreted Wnt antagonists is considered a common event in a wide range of human malignancies.
View Article and Find Full Text PDFThe homo sapiens LIM homeobox domain LHX6 gene, hLHX6, is a putative transcription regulator with homeo-domain. Multiple cytosine guanine dinucleotides (CpG island) are found in the genomic sequences between exon 4a and exon 5 of the gene encoding hLHX6s (alternative short iso-form of hLHX6 gene). This specific CpG island, hLHX6-HMR, is found frequently hypermethylated in 7 cervical cancer cell lines as shown in MSP, BSP, and COBRA assays.
View Article and Find Full Text PDFBackground & Objective: Histone deacetylase is overexpressed in a variety of cancers and is closely correlated with oncogenic factors. A histone-deacetylase inhibitor, trichostatin A (TSA), has been shown to induce apoptosis in many cancer cells at submicromolar concentrations. However, the mechanism remains unknown.
View Article and Find Full Text PDF