The cellulose-degrading species recently isolated from the human colon showed diverse ability to degrade and ferment cellulose. In the present study, the nature of the inter-relation existing between one H(2)-producing cellulolytic isolate (Ruminococcus sp. nov.) and one non-H(2)-producing cellulose-degrading species (Bacteroides sp. nov.) was investigated in vitro. Coculture experiments revealed synergism in cellulose degradation between these two cellulolytic species. An increase in total bacterial population was measured in the coculture, Bacteroides sp. being the predominant organism. As a result, a large decrease in H(2) production from cellulose fermentation was observed. Predominance of Bacteroides sp. might thus contribute to limit gas produced from fibre fermentation in the gut.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.femsle.2004.11.029 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Analysis of hollow visceral injuries admitted to a level one intensive care unit in South Africa.
S Afr J Surg
December 2024
Division of Surgery, Tygerberg Hospital, Stellenbosch University, South Africa.
Background: Bowel trauma, encompassing injuries to the small and large intestine, represents a significant medical challenge due to its potential for morbidity and mortality. Management of bowel injuries remains surgical, but multiple factors influence the outcome in these patients. This study provides an in-depth analysis of the high-risk features of hollow visceral trauma in the ICU setting and the corresponding mortality rates, shedding light on the critical factors that influence outcomes in these cases.
View Article and Find Full Text PDFEpidemiology and anatomic distribution of colorectal cancer in South Africa.
S Afr J Surg
December 2024
Centre for Global Surgery, Department of Global Health, Stellenbosch University, South Africa.
Background: Colorectal cancer (CRC) is the fifth most common cancer in sub-Saharan Africa (SSA) and the third most common in South Africa (SA). CRC characteristics in SSA are not well described. The aim is to describe patient characteristics and anatomic location of colorectal adenocarcinoma (CRC-AC) in SA.
View Article and Find Full Text PDFPMA1-containing extracellular vesicles of triggers immune responses and colitis progression.
Gut Microbes
December 2025
Department of Oncology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
() exhibits aberrant changes in patients with colitis, and it has been reported to dominate the colonic mucosal immune response. Here, we found that PMA1 expression was significantly increased in from patients with IBD compared to that in healthy controls. A Crispr-Cas9-based fungal strain editing system was then used to knock out PMA1 expression in .
View Article and Find Full Text PDFClinicopathologic Features and Viral Status of Low-risk HPV6 and HPV11-Associated Squamous Cell Carcinoma of the Uterine Cervix and Vulva.
Am J Surg Pathol
January 2025
Department of Pathology.
Despite being designated as "noncarcinogenic" human papillomavirus (HPV) types, mono-infection with HPV6 or HPV11 has been found in squamous cell carcinomas (SCCs) at specific sites, including the larynx, penis, anus, and rarely, the lower female genital tract. The association between clinicopathologic features, viral status, and the carcinogenic mechanisms related to these low-risk HPVs remains unclear. The current study characterizes a series of low-risk HPV6 and HPV11-associated SCCs of the uterine cervix (6 cases) and vulva (2 cases).
View Article and Find Full Text PDFTransanal Resection of a Prolapsed Rectal Lipoma: A Report of a Rare Case.
Cureus
January 2025
College of Medicine, King Saud University, Riyadh, SAU.
Lipoma is a benign tumor that arises from mesenchymal cells and is considered relatively rare. Although lipomas can develop anywhere in the digestive tract, they are seldom found within the intestinal tract. Typically asymptomatic, colonic lipomas usually do not require treatment unless they result in symptoms that warrant surgical intervention.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!