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Unexplained Fever In Infectious Diseases: Section 2: Commonly Encountered Aerobic, Facultative Anaerobic, And Strict Anaerobic Bacteria, Spirochetes, And Parasites
Published in Benedict Isaac, Serge Kernbaum, Michael Burke, Unexplained Fever, 2019
Acute invasive streptococcal infections and bacteremia are usually associated with fever. If an enterococcus is isolated on blood culture, infective endocarditis must first be considered. If Streptococcus bovis is isolated, there are two important considerations: (a) infective endocarditis and (b) an investigation of the gastrointestinal tract, since recent studies36 have shown that underlying carcinoma and polyps of the colon may serve as a portal of entry for this organism.
Fertility outcomes after treatment with intraperitoneal chemotherapy
Published in Journal of Obstetrics and Gynaecology, 2022
Dimitrios Papageorgiou, Michail Diakosavvas, Kyveli Angelou, Nikolaos Kathopoulis, Charalambos Voros, Eleftherios Zachariou, Konstantina Papadatou, Ioannis K. Papapanagiotou, Katerina Papakonstantinou
Both vaginal and caesarean deliveries have been mentioned in our survey. In all cases of caesarean section, disease recurrence was not reported. Regarding newborns’ health, all neonates except two were healthy. One became febrile five hours post birth and infection with Streptococcus bovis was diagnosed. The newborn was admitted to the ICU in order to receive antibiotic treatment. One week later he was discharged from hospital. Streptococcus bovis bacteraemia remains a very rare entity in neonates but seems to have an association with colonic neoplasia in adults (Cianos et al. 2013; Papageorgiou et al. 2020). The second newborn was diagnosed with congenital diaphragmatic hernia. Although, neonate’s mother received HIPEC 19 months prior to conception, association between treatment and congenital malformation could not be established (Ortega-Deballon et al. 2011).
Growth rate alterations of human colorectal cancer cells by 157 gut bacteria
Published in Gut Microbes, 2020
Rahwa Taddese, Daniel R. Garza, Lilian N. Ruiter, Marien I. de Jonge, Clara Belzer, Steven Aalvink, Iris D. Nagtegaal, Bas E. Dutilh, Annemarie Boleij
Streptococcus bovis infections have been linked to colorectal neoplasia.43,85,86 Our results demonstrate that secretomes of Streptococcus bovis strains that are closely related to known S. gallolyticus and S. pasteurianus strains (Supplementary Figure S3), selectively enhance the growth of HT29 cells. This is in line with a previous study showing cell growth enhancing effects in HT29 and HCT116 cells that were mediated through β-catenin, while no effect was observed in SW480 and HEK293T cells.87 An intact β-catenin pathway may, therefore, be required to observe the specific effect of S. gallolyticus on cell growth as is the case in HT29 cells,88 which may thus be sensitive to the effects of S. gallolyticus in our assay. HCT116 cells have a mutation in CTNNB1 (p.Ser45del) that interferes with β-catenin degradation, which may explain its insensitivity to S. gallolyticus. Alternatively, mutations in the APC-gene in the other CRC-cells89 may interfere with β-catenin signaling depending on the specific mutation.
Differences in Fecal Gut Microbiota, Short-Chain Fatty Acids and Bile Acids Link Colorectal Cancer Risk to Dietary Changes Associated with Urbanization Among Zimbabweans
Published in Nutrition and Cancer, 2019
L. Katsidzira, S. Ocvirk, A. Wilson, J. Li, C. B. Mahachi, D. Soni, J. DeLany, J. K. Nicholson, E. G. Zoetendal, S. J. D. O’Keefe
Comparative analysis of microbiota composition revealed only minor differences in relative abundances of microbes between urban and rural residents (Table 4). Indices for α-diversity, richness, and evenness were similar between urban and rural Zimbabweans (data not shown). However, there were significant differences detected in the relative abundance of a few genera. Fecal levels of Blautia obeum et rel., Streptococcus bovis et rel., and Subdoligranulum variabile et rel. were higher among urban residents (Fig. 1). Oscillospira guillermondii et rel., Sporobacter termitidis et rel., and unclassified Clostridia et rel. were higher among rural participants. Interestingly, Oscillospira guillermondii et rel. accounted for nearly 20% of all genera detected by HITChip in rural participants, and 8% of all genera in urban participants.