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Biomedical subjects

Bennett Lorber

Publications and source records attributed to Bennett Lorber.

10 recordsLinked to original sources
PubMed2005

Gastroenteritis due to Listeria monocytogenes.

It has been known for a long time that many patients experience diarrhea antecedent to the development of bacteremia or meningoencephalitis due to Listeria monocytogenes, but it was only recently that convincing evidence was obtained that this organism can cause acute, self-limited, febrile gastroenteritis in healthy persons. At least 7 outbreaks of foodborne gastroenteritis due to L. monocytogenes have been reported. Illness typically occurs 24 h after ingestion of a large inoculum of bacteria and usually lasts 2 days. Common symptoms include fever, watery diarrhea, nausea, headache, and pains in joints and muscles. L. monocytogenes should be considered to be a possible etiology in outbreaks of febrile gastroenteritis when routine cultures fail to yield a pathogen.

Disease Outbreaks↗
PubMed2004

Esophageal bacteria and Barrett's esophagus: a preliminary report.

The objective of this study was to investigate if esophageal bacteria are associated with Barrett's esophagus (BE). This study was comprised of a retrospective (Part 1) and a subsequent prospective (Part 2) study. In Part 1, Gram stains were performed on esophageal biopsy specimens obtained in 47 patients. Bacteria were quantitated from 0 to 4. In Part 2, Gram stains and cultured bacterial counts of esophageal biopsies were obtained in 18 GERD patients (9 with BE and 9 without BE). Part 1 results were as follows. Bacteria were found in 37 of 47 esophageal biopsies. Quantitative bacterial stain scores for BE (2.5 +/- 0.2) were higher than for non-BE (1.5 +/- 0.3; P = 0.02). The quantitative bacterial stain scores correlated with increasing severity of dysplasia (r = 0.37, P = 0.028). In Part 2, bacteria were found in 8 of 18 esophageal biopsies by Gram stain (6 of 9 patients with BE vs. 2 of 9 non-BE). The distal esophageal bacterial stain scores in BE patients (1.6 +/- 0.5) were higher than in those without BE (0.4 +/- 0.3; P = 0.07). Patients on proton pump inhibitors tended to have higher bacterial stain scores (1.2 +/- 0.4) than patients who were not (0.7 +/- 0.3; P = 0.45). Bacterial colony counts were similar in patients with BE compared to those without BE. In conclusion, bacteria in esophageal biopsies were detected more often in BE than non-BE. Increasing bacterial stain scores were associated with metaplasia and increasing dysplasia. Esophageal bacteria, possibly related to stasis or gastric acid suppression therapy, may play a role in the pathogenesis of BE and dysplasia.

Adult↗
PubMed2003

Group B streptococcal endocarditis in obstetric and gynecologic practice.

BACKGROUND: We describe a case and review ten other instances of group B streptococcal endocarditis in the setting of obstetric and gynecologic practice reported since the last review in 1985. CASE: Abortion remains a common antecedent event, but in contrast to earlier reports, most patients did not have underlying valvular disease, the tricuspid valve was most often involved, and mortality was low. Patients with tricuspid valve infection tended to have a subacute course, whereas those with aortic or mitral involvement typically had a more acute, fulminant course. CONCLUSION: Despite an improvement in mortality, morbidity remains high, with 8 of 11 patients having clinically significant emboli.

Abortion, Induced↗