Nutritional relationships between oral bacteria.
نویسندگان
چکیده
Nutritional relationships were revealed during the coculturing of Bacteroides gingivalis with Wolinella recta and Bacteroides melaninogenicus with W. recta. W. recta produced a substance that stimulated the growth of B. gingivalis and B. melaninogenicus. Characterization by thin-layer chromatography and absorption spectrometry identified the compound as protoheme. Production of large amounts of formate by B. melaninogenicus stimulated the growth of W. recta. These nutritional relationships could represent examples of mechanisms favoring bacterial succession in periodontal sites.
منابع مشابه
Human oral microbial ecology and dental caries and periodontal diseases.
In the human oral cavity, which is an open growth system, bacteria must first adhere to a surface in order to be able to colonize. Ability to colonize a non-shedding tooth surface is necessary prior to any odontopathic or periodontopathic process. Complex microbe-host relationships occur and must be studied before the commensal-to-pathogenic nature of the human indigenous oral flora can be unde...
متن کاملThe Effect of Oral Nutritional Supplement on Nutritional Status of Hemodialysis Patients in a Military Hospital
Background and Aim: Malnutrition is a common problem for hemodialysis patients, leading to reduced quality of life, increased hospitalization, and increased mortality. Evaluation of nutritional status is one of the main determinants of the clinical status. The aim of this study was to investigate the effect of oral nutritional supplements (Iso Whey) on the nutritional status of hemodialysis pat...
متن کاملConsumption of dietary sugar by gut bacteria determines Drosophila lipid content.
Gut microorganisms are essential for the nutritional health of many animals, but the underlying mechanisms are poorly understood. This study investigated how lipid accumulation by adult Drosophila melanogaster is reduced in flies associated with the bacterium Acetobacter tropicalis which displays oral-faecal cycling between the gut and food. We demonstrate that the lower lipid content of A. tro...
متن کاملMouthguards: does the indigenous microbiome play a role in maintaining oral health?
The existence of symbiotic relationships between bacteria and their hosts in various ecosystems have long been known to science. The human body also hosts vast numbers of bacteria in several habitats. Emerging evidence from the gastro-intestinal tract, genito-urinary tract and respiratory indicates that there are several health benefits to hosting a complex and diverse microbial community. Bact...
متن کاملNutritional Markers for Evaluating Vitamin Intakes in YOung
Litt,]e information is avatlable to estimate watcr-soluble vitamin intakes t'rom urinary vitamins and tLieir metabolite contents as possib]e nutritional markcrs. Dctermination of the relationships between the oral dose and urinary excretion of water-soluble vitamins in human subjects contributes to linding va[id nutrition markers of watcr-soluble vitamin intakes. Six fcmale Japanese college stu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Infection and immunity
دوره 53 3 شماره
صفحات -
تاریخ انتشار 1986