18,868 results match your criteria: "DSS; University of Texas Health Science Center at Houston[Affiliation]"

Gut bacteria Prevotellaceae related lithocholic acid metabolism promotes colonic inflammation.

J Transl Med

January 2025

Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, People's Republic of China.

Background: The conversion of primary bile acids to secondary bile acids by the gut microbiota has been implicated in colonic inflammation. This study investigated the role of gut microbiota related bile acid metabolism in colonic inflammation in both patients with inflammatory bowel disease (IBD) and a murine model of dextran sulfate sodium (DSS)-induced colitis.

Methods: Bile acids in fecal samples from patients with IBD and DSS-induced colitis mice, with and without antibiotic treatment, were analyzed using ultraperformance liquid chromatography-mass spectrometry (UPLC-MS).

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With the development of molecular pharmacognosy, the advantages of DNA molecular markers in the identification of original plants of Chinese medicinal materials are becoming increasingly significant. To compensate for the limitations of existing markers in the quality supervision of Chinese medicinal materials, our team has independently designed a new molecular marker named DNA signature sequence(DSS). This marker is a nucleotide sequence that only appears in a specific taxonomic unit, with a length of 40 bp and high identification accuracy.

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Polystyrene nanoplastics promote colitis-associated cancer by disrupting lipid metabolism and inducing DNA damage.

Environ Int

January 2025

Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, Hubei, China. Electronic address:

Nanoplastics (NPs) have attracted widespread attention owing to their presence in the body. Recent studies highlighted the detrimental effects of NPs on the digestive tract. However, no studies have reported an association between NPs exposure and colitis-associated cancer (CAC).

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Colorectal cancer (CRC) is among the most common cancer types for both sexes. Tripartite motif 36 (TRIM36) has been reported to be aberrantly expressed in several cancer types, suggesting its involvement in cancer progression. However, the role of TRIM36 in the colorectal carcinogenesis remain unknown.

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Poor oral health is an independent risk factor for upper-aerodigestive tract cancers, including esophageal squamous cell carcinoma (ESCC); thus, good oral health may reduce the risk of ESCC. We previously reported that high expression of Toll-like receptor (TLR) 6, which recognizes peptidoglycan (PGN) from Gram-positive bacteria correlates with a good prognosis after esophagectomy for ESCC. Most beneficial bacteria in the mouth are Gram-positive.

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The objective of this study was to investigate the effect of the () SS18-50 (an isolate with favorable probiotic properties following space traveling) on dextran sulfate sodium (DSS)-induced colitis in mice. Male ICR mice were randomly assigned to one of six groups: a control group, a model group, and four intervention groups comprising the isolate (SS18-50-L and SS18-50-H) and the wild type (GS18-L and GS18-H) strains. The model group and the intervention groups were administered a 3.

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Ulcerative colitis (UC), a persistent immune-mediated disorder lacking effective treatment, is distinguished by gut microbiota dysbiosis, abnormal activation of the NLRP3 inflammasome pathway, and apoptosis. Despite growing attention to these factors, understanding their significance in UC pathogenesis remains a challenge. The present study explores the potential therapeutic impact of (Bc) spores in a murine UC model induced by drinking 4 % (w/v) dextran sulfate sodium (DSS) in C57BL/6 mice.

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Purpose: Kuiyangling is a traditional Chinese medicine formula used for the treatment of ulcerative colitis, but the specific mechanism remains unclear. Imbalance in NETs regulation is one of the important factors contributing to the onset of ulcerative colitis (UC). The HuR/VDR signaling pathway plays a significant role in restoring the intestinal mucosal barrier in UC.

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Objective: The aim of this study is to investigate the protective effect of Cannabidiol (CBD) on DSS-induced colitis in C57BL/6 mice and its related pathways.

Methods: A mouse model of ulcerative colitis (US) was induced by DSS. Enzyme-linked immunosorbent assay (ELISA), quantitative reverse transcription polymerase-chain reaction (qRT-PCR), Western blot (WB) and immunofluorescence (IF) were used to identify the key factors involved in inflammatory response, oxidative stress and intestinal fibrosis.

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Purpose: Glioma is the most prevalent tumor of the central nervous system. The poor clinical outcomes and limited therapeutic efficacy underscore the urgent need for early diagnosis and an optimized prognostic approach for glioma. Therefore, the aim of this study was to identify sensitive biomarkers for glioma.

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Article Synopsis
  • The study investigates how changes in the Ki67 biomarker before and after neoadjuvant chemotherapy (NACT) affect survival in patients with triple-negative breast cancer (TNBC).
  • Among 1,777 TNBC patients analyzed, most showed a decrease in tumor size and Ki67 levels after NACT, though many had no change or experienced treatment discontinuation.
  • Patients with unchanged Ki67 had significantly worse overall and disease-specific survival compared to those with decreased Ki67, emphasizing the need for personalized treatment strategies based on ongoing monitoring of this biomarker.
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NVP-AUY922 relieves radiation-induced intestinal injury via regulating EPHX1.

Life Sci

January 2025

Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Tianjin 300192, China. Electronic address:

As a common side effect of radiotherapy, radiation-induced intestinal injury (RIII) greatly affects the prognosis of patients and the efficacy of radiotherapy. Current therapeutic strategies for RIII are still very limited. Thus, the identification of effective radioprotective agents is of great importance.

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RAMIE: retrieval-augmented multi-task information extraction with large language models on dietary supplements.

J Am Med Inform Assoc

January 2025

Division of Computational Health Sciences, Department of Surgery, University of Minnesota, Minneapolis, MN 55455, United States.

Objective: To develop an advanced multi-task large language model (LLM) framework for extracting diverse types of information about dietary supplements (DSs) from clinical records.

Methods: We focused on 4 core DS information extraction tasks: named entity recognition (2 949 clinical sentences), relation extraction (4 892 sentences), triple extraction (2 949 sentences), and usage classification (2 460 sentences). To address these tasks, we introduced the retrieval-augmented multi-task information extraction (RAMIE) framework, which incorporates: (1) instruction fine-tuning with task-specific prompts; (2) multi-task training of LLMs to enhance storage efficiency and reduce training costs; and (3) retrieval-augmented generation, which retrieves similar examples from the training set to improve task performance.

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Safety of accessing brachial veins for large-bore upper extremity venous thrombectomy using ClotTriever Thrombectomy System.

CVIR Endovasc

January 2025

Department of Radiology, Section of Vascular and Interventional Radiology, University of Washington, 1959 Northeast Pacific Street, Seattle, WA, 98195, USA.

Purpose: To evaluate access site adverse events following ClotTriever-mediated large-bore mechanical thrombectomy via small upper extremity deep veins (< 6-mm).

Materials And Methods: Twenty patients, including 24 upper extremity venous access sites, underwent ClotTriever-mediated large-bore thrombectomy of the upper extremity and thoracic central veins for symptomatic deep vein obstruction unresponsive to anticoagulation. Patients without follow-up venous duplex examinations (n = 3) were excluded.

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Background: Ulcerative colitis (UC) is a chronic intestinal disease of growing global concern. Bacteria associated with fermented food or probiotics regulate immune and inflammatory responses, playing a key role in intestinal immune homeostasis.

Results: Five probiotics with relatively good antioxidant effects, namely H6, QC9, E7, D1, and Q13, were screened out from 30 strains of probiotics through in vitro antioxidant assays.

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Transcriptomic Insights into the Molecular Mechanisms of Indole Analogues from the Extract and Their Therapeutic Effects on Ulcerative Colitis.

Animals (Basel)

December 2024

Key Laboratory of Bio-Resources and Eco-Environment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu 610065, China.

Ulcerative colitis (UC) is an inflammatory disease of the intestinal mucosa, and its incidence is steadily increasing worldwide. As a traditional Chinese medicinal insect, has been broadly utilized in clinical practice to treat wound healing. The tryptophan (Trp), tryptamine (Try), and 1,2,3,4-tetrahydrogen-β-carboline-3-carboxylic acid (Thcc) identified from concentrated ethanol-extract liquid (PACEL) exhibit significant cell proliferation-promoting and anti-inflammatory effects in the treatment of UC, but the mechanism involved remains obscure.

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Background: The characteristics of ulcerative colitis (UC) in the elderly are quite different from the young population. Mitochondrial injury is a key mechanism regulating both aging and inflammation. This study aims to reveal the role of mitochondrial damage in the pathogenesis of adult- and elderly-onset UC.

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Exploring the role of ELOVLs family in lung adenocarcinoma based on bioinformatic analysis and experimental validation.

BMC Cancer

January 2025

Department of Respiratory and Critical Care Medicine, Research Center for Chronic Airway Diseases, Peking University Third Hospital, Peking University Health Science Center, Beijing, China.

Background: The role of lipid metabolic reprogramming in the development of various types of cancer has already been established. However, the exact biological function and significance of the elongation of very-long-chain fatty acids (ELOVLs) gene family, which can affect fatty acid metabolism, is still not well understood in lung adenocarcinoma (LUAD). The aim of our study is to explore whether there are genes related to the pathogenesis of LUAD in the ELOVLs family, and even to guide clinical medication and potential prognostic indicators.

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Prostaglandin E receptor type 4 (EP4) agonists have been shown to be effective in treating experimental ulcerative colitis (UC) in animals and in human clinical trials, but their development has been impeded by unacceptable systemic side effects. In this study, a series of methylene phosphate prodrugs of a highly potent and selective prostaglandin EP4 receptor agonist were designed to target and remain localized in the gastrointestinal (GI) tract after either oral or rectal instillation. The prodrugs were designed to be converted to liberate active EP4 agonist by intestinal alkaline phosphate (IAP), a ubiquitous enzyme found at the luminal of the intestinal wall thus exposing the colon epithelial barrier while reducing systemic exposure to the active agonist.

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Background: The COVID-19 pandemic has accelerated the digitalization of modern society, extending digital transformation to daily life and psychological evaluation and treatment. However, the development of competencies and literacy in handling digital technology has not kept pace, resulting in a significant disparity among individuals. Existing measurements of digital literacy were developed before widespread information and communications technology device adoption, mainly focusing on one's perceptions of their proficiency and the utility of device operation.

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Background: Severe respiratory distress and acute kidney injury (AKI) are key factors leading to poor outcomes in patients with dengue shock syndrome (DSS). There is still limited data on how much resuscitated fluid and the specific ratios of intravenous fluid types contribute to the development of severe respiratory distress necessitating mechanical ventilation (MV) and AKI in children with DSS.

Methodology/principal Findings: This retrospective study was conducted at a tertiary pediatric hospital in Vietnam between 2013 and 2022.

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LZZAY01 accelerated autophagy and apoptosis in colon cancer cells and improved gut microbiota in CAC mice.

Microbiol Spectr

January 2025

Laboratory of Microbiology and Immunology, School of Basic Medical Science, Inner Mongolia Medical University, Hohhot, China.

Colorectal cancer (CRC) is one of the malignant tumors globally, with high morbidity and mortality rates. The mainstay treatment of CRC includes surgery, radiotherapy, and chemotherapy. However, these treatments are associated with a high recurrence rate, poor prognosis, and highly toxic side effects.

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Ethnopharmacological Relevance: Huanglian Ganjiang decoction (HGD), which is composed of Chinese medicines with cold, warm, and astringent properties, has demonstrated significant therapeutic efficacy in ulcerative colitis (UC). However, the underlying mechanisms remain unclear, highlighting the need for a multi-faceted investigation. Disassembling prescriptions is a crucial approach for investigating compatibility mechanisms.

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Glycyrrhizic acid reduces neutrophil extracellular trap formation to ameliorate colitis-associated colorectal cancer by inhibiting peptidylarginine deiminase 4.

J Ethnopharmacol

January 2025

State Key Laboratory of Traditional Chinese Medicine Syndrome, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China; Chinese Medicine Guangdong Laboratory, Guangdong, 519000, China. Electronic address:

Ethnopharmacological Relevance: In traditional Chinese medicine, the radices of Glycyrrhiza uralensis Fisch., known as liquorice, have been used for relieving cough, alleviating pain and harmonizing the actions of all medicinals in a formula. Glycyrrhizic acid (GA), a natural compound derived from licorice, exhibits notable anti-inflammatory properties.

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Background Aims: Esophageal symptom-specific anxiety, hypervigilance, and adaptive behaviors at mealtime may affect dysphagia reporting in patients with eosinophilic esophagitis (EoE) but this has not been investigated. Moreover, the relationship between such confounding factors and histological disease activity (HDA) is unclear.

Methods: This was a prospective study on adults with EoE.

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