271,156 results match your criteria: "Colo; The Colorado School of Public Health[Affiliation]"

Introduction: Ulcerative colitis (UC) is a chronic inflammatory disease. Patients with UC typically exhibit disruption of the Treg/Th17 immune axis, but its exact mechanism is still unclear.

Methods: This study first analyzed RNA- seq data from public databases of humans and mice, and cytology experiments were conducted to induce or inhibit the expression of SIRT1.

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Background: Patients with mutant metastatic colorectal cancer (mCRC) have a low incidence rate, poor biological activity, suboptimal response to conventional treatments, and a poor prognosis. In the previous cohort study on mCRC conducted by our team, it was observed that integrated Chinese and Western medicine treatment could significantly prolong the overall survival (OS) of patients with colorectal cancer. Therefore, we further explored the survival benefits in the population with mutant mCRC.

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Ras gene is frequently mutated in cancer. Among different subtypes of Ras gene, K-Ras mutation occurs in nearly 30 % of human cancers. K-Ras mutation, specifically K-Ras (G12D) mutation is prevalent in cancers like lung, colon and pancreatic cancer.

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Descriptions of one hundred new species of Hesperiidae.

Insecta mundi

December 2023

Departments of Biophysics and Biochemistry, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX, 75390-9050 USA.

A century and a half since the time of Hewitson, we are experiencing a renaissance in species discovery fueled by whole genome sequencing. A large-scale genomic analysis of Hesperiidae Latreille, 1809 (Lepidoptera), including primary type specimens, reveals a deluge of species new to science. One hundred of them (one in a new genus) are described here from the New World (type localities are given in parenthesis): () Grishin, (Ecuador: Napo), Grishin, (Ecuador: Esmeraldas), Grishin, (Panama: Panama), () Grishin, (Ecuador: Zamora-Chinchipe), () Grishin, (Panama: Darien), () Grishin, (Ecuador: Napo), () Grishin, (Panama: Panama), () Grishin, (Ecuador: Pastaza), Grishin, (Panama: Colón), Grishin, (Ecuador: Napo), Grishin, (Ecuador: Esmeraldas), Grishin, (Guyana), Grishin, (Peru: Cuzco), Grishin, (Peru: Cuzco), Grishin, (Panama: Panama), Grishin, (Brazil: Mato Grosso), () Grishin, (Brazil: Rondônia), () Grishin, (Panama: Panama), () Grishin, (Ecuador: Napo), Grishin, (Brazil: Rondônia), Grishin, (Peru: Loreto), Grishin, (Suriname: Para), Grishin, (Brazil: Santa Catarina), Grishin, (Panama: Panama), Grishin, (Brazil: Santa Catarina), Grishin, (Ecuador: Orellana), Grishin, (Venezuela: Aragua), Grishin, (Guatemala), Grishin, (Guyana), () Grishin, (Panama: Darien), () Grishin, (Mexico: Guerrero.

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Basidiobolomycosis, a rare fungal infection seen in immunocompetent patients, is a chronic granulomatous infection affecting the skin and subcutaneous tissue. It is caused by the fungus . Gastrointestinal basidiobolomycosis usually has non-specific clinical manifestations, and its diagnosis requires a high index of suspicion.

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Familial adenomatous polyposis (FAP) is an autosomal dominant hereditary disease characterized by the progressive development of multiple adenomatous polyps along the colon. The majority of individuals develop colorectal cancer by the age of 40 within the evolutionary course of the disease. For this reason, screening family members is essential to enable identification, surveillance, and appropriate intervention.

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Introduction Colorectal cancer (CRC) represents a major global health burden, significantly impacting mortality rates and healthcare systems worldwide. CRC screening through colonoscopy enables early detection and removal of precancerous polyps. While standard polypectomy suffices for small polyps, larger ones require endoscopic mucosal resection (EMR).

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Introduction Endoscopic mucosal resection (EMR) is a common intervention for large colorectal polyps, but its long-term success depends heavily on post-procedure surveillance to detect recurrence. Despite the critical importance of follow-up appointments, some patients fail to attend these crucial visits. This study aims to identify demographic, clinical, and socioeconomic factors that predict missed follow-up appointments after EMR.

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Caspase-4 Has Potential Utility as a Colorectal Tissue Biomarker for Dysplasia and Early-Stage Cancer.

Gastro Hep Adv

September 2024

School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.

Background And Aims: Colorectal cancer (CRC) is the second most deadly cancer globally. The rapidly rising incidence rate of CRC, coupled with increased diagnoses in individuals <50 years, indicates that early detection of CRC, and those at an increased risk of CRC development, is paramount to improve the survival rates of these patients. Here, we profile caspase-4 expression across 2 distinct CRC development pathways, sporadic CRC (sCRC) and inflammatory bowel disease-associated CRC (IBD-CRC), to examine its utility as a novel biomarker for CRC risk and diagnosis.

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Can Artificial Intelligence Create an Accurate Colonoscopy Bowel Preparation Prompt?

Gastro Hep Adv

October 2024

Division of Gastroenterology, Icahn School of Medicine at Mount Sinai, Mount Sinai South Nassau, One Healthy Way, Oceanside, New York.

Background And Aims: Colorectal cancer is the third most common cancer in the United States, with colonoscopy being the preferred screening method. Up to 25% of colonoscopies are associated with poor preparation which leads to prolonged procedure time, repeat colonoscopies, and decreased adenoma detection. Artificial intelligence (AI) is being increasingly used in medicine, assessing medical school exam questions, and writing medical reports.

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Background: Mucinous adenocarcinoma is a rare type of colorectal cancer (CRC) associated with poor prognosis, particularly when it includes signet ring cell components. Furthermore, its rate of microsatellite instability-high (MSI-H) is significantly higher compared to non-mucinous adenocarcinoma. Immunotherapy has emerged as the standard treatment for MSI-H metastatic CRC (mCRC).

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Background: Colon cancer is the third most common cancer type worldwide. Novel alternative therapeutic anti-cancer drugs against colon cancer with less toxicity are to be explored . This study was aimed to explore the anti-proliferative and anti-migratory activity of various fractions of ethanolic leaf extract on human colon cancer cell lines (HCT-116) and to explore the potential molecular targets from the most potent plant extract fraction.

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Colorectal cancer is one of the most prevalent malignant neoplasms in Brazil. Hepatectomy for resection of liver metastases plays an essential role in increasing disease-free survival, with the possibility of cure. The feasibility of liver resection depends on factors related to the remaining liver after surgery.

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The management of early-stage colon cancer involves surgical resection of the primary tumor with or without chemotherapy, depending on pathological staging. The benefit of adjuvant chemotherapy for stage II and III colon cancer is approximately 5% and 15%, indicating the need for optimization for risk stratification and patient selection. Several studies have revealed that current clinicopathological factors lack precision.

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Aim: Locally advanced colon cancer (LACC) often necessitates complex prognosis-determining treatment. This study investigated the impact of hospital volume on short- and long-term outcomes following surgery for LACC.

Method: Data involving all patients with LACC categorized as clinical T4 and/or N2, between 2015 and 2019 in the Netherlands, were extracted from the Netherlands Cancer Registry.

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The application of a multimodal combination therapy based on a targeted nanodelivery system has been demonstrated to be more valuable in the treatment of cancer. In this work, a hollow polydopamine delivery system (CCC@HP@M) was designed to achieve sonodynamic and calcium-overload combined therapy for colon cancer. The CCC@HP@M exhibits both homologous tumour-targeting ability and pH-responsive drug release properties, enabling the simultaneous targeted delivery of CaO nanoparticles/sonosensitizer Ce6/autophagy inhibitor CQ.

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Comprehensive care of ulcerative colitis: new treatment strategies.

Expert Rev Gastroenterol Hepatol

January 2025

Department of Gastroenterology and Hepatology, Concord Repatriation General Hospital, Sydney, Australia.

Introduction: Ulcerative colitis is a chronic inflammatory condition of the colon driven by aberrant immune activation. Although advanced medical therapies form the cornerstone of ulcerative colitis management, unmet needs include failure to induce and sustain remission in a substantial proportion of patients and in managing acute severe ulcerative colitis. We review new treatment strategies that might improve patient outcomes in the management of moderate-to-severe ulcerative colitis.

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Colorectal cancer is a lethal malignancy that begins from acquired/inherent premalignant lesions. Thus, targeting these lesions at an early stage of the disease could impede the oncogenesis and maximize the efficacy. The present work underscores a combinatorial therapy of paclitaxel (PTX) and glycyrrhizin (GL) delivered via gelatin-derived core-shell nanoparticles [AC-PCL(GL + PTX)-GNPs] for effective management of precancerous lesions.

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Real-world genomic landscape of colon and rectal cancer.

FEBS Open Bio

January 2025

Clinical Measurement Sciences, Global Research & Development, EMD Serono, Billerica, MA, USA.

MAPK signaling activation is an important driver event in colorectal cancer (CRC) tumorigenesis that informs therapy selection, but detection by liquid biopsy can be challenging. We analyze real-world comprehensive genomic profiling (CGP) data to explore the landscape of alterations in BRAF or RAS in CRC patients (N = 51 982) and co-occurrence with other biomarkers. A pathogenic RAS or BRAF alteration was found in 63.

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Fistulization involving both the sigmoid colon and urachus is exceedingly rare. While previous cases have often necessitated laparotomy due to the involvement of multiple organs, only one instance of successful laparoscopic surgery has been reported. Here, we present the second documented case of laparoscopic resection of a sigmoid-urachal fistula.

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MC-LR induces and exacerbates Colitis in mice through the JAK1/STAT3 pathway.

J Toxicol Environ Health A

January 2025

Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang, China.

Inflammatory bowel disease (IBD) is a complex gastrointestinal disorder attributed to genetic and environmental factors. Microcystin-leucine-arginine (MC-LR) is an environmental toxin that accumulates in the gut and produces intestinal damage. The aim of this study was to investigate the effects of exposure to MC-LR on development and progression of IBD as well examine the underlying mechanisms of microcystin-initiated tissue damage.

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Inflammatory bowel disease is a collection of intestinal disorders that cause inflammation in the digestive tract. Prolonged inflammation in the gastrointestinal tract is a major risk factor for colorectal cancer. The objective of this study was to fucus on gene expression levels of (KRT-14; associated with epithelial cell integrity) and enhancer of zeste homolog-1 (EZH-2; involved in cellular proliferation) in a IBD rat model in order to rule out impact of nutraceuticals (pumpkin seed oil; PSO) as a complementary approach to conventional treatments of IBD.

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Colon cancer poses a significant threat to global health, and studies have shown a correlation between physical activity (PA) and the incidence of colon cancer. However, existing research has not quantitatively analyzed PA to evaluate its impact on the risk of colon cancer comprehensively. Data related to the study were obtained from the NHANES database for participants aged 20 and above between 2007 and 2018.

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Metabolic syndrome is, in humans, associated with alterations in the composition and localization of the intestinal microbiota, including encroachment of bacteria within the colon's inner mucus layer. Possible promoters of these events include dietary emulsifiers, such as carboxymethylcellulose (CMC) and polysorbate-80 (P80), which, in mice, result in altered microbiota composition, encroachment, low-grade inflammation and metabolic syndrome. While assessments of gut microbiota composition have largely focused on fecal/luminal samples, we hypothesize an outsized role for changes in mucus microbiota in driving low-grade inflammation and its consequences.

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ROS-responsive nanocarrier for oral delivery of monascin and enhanced alleviation of oxidative stress.

J Biosci Bioeng

January 2025

Department of Biology, College of Science, Shantou University, Shantou 515063, Guangdong, China; Guangdong Provincial Key Laboratory of Marine Biotechnology, Institute of Marine Sciences, Shantou University, Shantou 515063, China; Shantou Key Laboratory of Marine Microbial Resources and Interactions with Environment, Shantou University, Shantou 515063, China. Electronic address:

Oxidative stress, caused by excessive production of reactive oxygen species (ROS), plays a crucial role in the occurrence and development of various diseases. Monascin can scavenge ROS and alleviate oxidative stress but with a low fermentation rate and bioavailability. Here, we optimized the fermentation process to increase the production of monascin (508.

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