Unexplained Fever In Infectious Diseases: Section 2: Commonly Encountered Aerobic, Facultative Anaerobic, And Strict Anaerobic Bacteria, Spirochetes, And Parasites
Benedict Isaac, Serge Kernbaum, Michael Burke in 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.
Paper 1
Amanda Rabone, Benedict Thomson, Nicky Dineen, Vincent Helyar, Aidan Shaw in The Final FRCR, 2020
A 75 year old male patient is admitted with fever, reduced appetite, shortness of breath and chest pain. Contrast enhanced CT chest, abdomen and pelvis identifies no consolidation or intrabdominal collections however there are multiple low attenuation hepatic lesions consistent with metastases and subsegmental bilateral lower lobe pulmonary emboli. An echocardiogram reveals tricuspid valve vegetations. Blood cultures obtained upon presentation to hospital have grown Streptococcus bovis.
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.
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).
The rumen microbiome: a crucial consideration when optimising milk and meat production and nitrogen utilisation efficiency
Published in Gut Microbes, 2019
Chloe Matthews, Fiona Crispie, Eva Lewis, Michael Reid, Paul W. O’Toole, Paul D. Cotter
Starch is also an important constituent of the ruminant diet, in particular for highly productive dairy cows. High grain diets result in an increase in the amount of starch in the rumen. Streptococcus bovis, an amylolytic bacterium, is normally present in low numbers in cows fed high forage diets or cows adapted to grain diets over a course of time and in high abundance in un-adapted cows that consume high grain diets.25S. bovis has a lower pH optimum for growth than many other bacteria, and its high abundance following consumption of high grain diets is attributed to a sudden increase in glucose levels in the rumen and the loss of protozoa due to the more acidic environment created by high grain diets. More specifically, lactic acid is produced from starch and, as lactic acid is not metabolised by the animal, it is instead absorbed through the rumen wall causing an increase in lactic acid in the blood and reduced blood pH. If the diet of the animal is changed too quickly, there is also an accumulation of VFAs found in the rumen, having a detrimental effect on the microbiota and the host animal. These severe and sudden changes lead to a decrease in rumen pH and an increase in S. bovis and Lactobacillus species.26
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