The bacterial flora, trimethylamine and total volatile nitrogen of fish muscle at 0° c. (in ice).

Observations on the changes occurring in the bacterial flora and the trimethylamine and total volatile nitrogen content of fish muscle at 3° C. were reported previously (Velankar, 1956). The results of similar studies on fish kept in ice storage are presented in this paper and the bacterial flora, isolated during these investigations, is described

A szájüreg baktériumflórájának összefüggése az anastomosis elégtelenség következményeivel nyelőcső- és cardiatumoros betegeknél

INTRODUCTION: In the course of anastomotic insufficiency following resection of esophageal cancers the bacterial compound of the esophageal substance has a remarkable, presumable role in the outcome of complications. AIM: The purpose of this study is to compare the consequences of the anastomotic leak with the bacterial flora of patients' oral cavity. METHOD: In this prospective study a total of 131 patients were investigated directly before the surgical intervention taking a bacterial sample. Bacterial flora of patients' oral cavity was analysed; and the correlation between the consequences of the anastomotic leak and the content of the bacterial flora was examined. RESULTS: Pathogenic bacteria in the oral microflora in 50 cases (38.2%) was found. Statistically significant, moderate correlation was found between the severity of the complication and the incidence of pathogenic bacteria (rs = 0.553; p</=0.05). CONCLUSIONS: Pathogenic agent in the microbial flora might induce higher risk and more severe outcome in case of anastomotic leakage and it might be evaluated as a determinative factor. Consideration of the bacterial flora of the oral cavity requires more attention in the preoperative preparation than before and it demands the change of the current practice. Orv. Hetil., 2017, 158(1), 25-30

Midgut microbiota of the malaria mosquito vector Anopheles gambiae and Interactions with plasmodium falciparum Infection

The susceptibility of Anopheles mosquitoes to Plasmodium infections relies on complex interactions between the insect vector and the malaria parasite. A number of studies have shown that the mosquito innate immune responses play an important role in controlling the malaria infection and that the strength of parasite clearance is under genetic control, but little is known about the influence of environmental factors on the transmission success. We present here evidence that the composition of the vector gut microbiota is one of the major components that determine the outcome of mosquito infections. A. gambiae mosquitoes collected in natural breeding sites from Cameroon were experimentally challenged with a wild P. falciparum isolate, and their gut bacterial content was submitted for pyrosequencing analysis. The meta-taxogenomic approach revealed a broader richness of the midgut bacterial flora than previously described. Unexpectedly, the majority of bacterial species were found in only a small proportion of mosquitoes, and only 20 genera were shared by 80% of individuals. We show that observed differences in gut bacterial flora of adult mosquitoes is a result of breeding in distinct sites, suggesting that the native aquatic source where larvae were grown determines the composition of the midgut microbiota. Importantly, the abundance of Enterobacteriaceae in the mosquito midgut correlates significantly with the Plasmodium infection status. This striking relationship highlights the role of natural gut environment in parasite transmission. Deciphering microbe-pathogen interactions offers new perspectives to control disease transmission.Institut de Recherche pour le Developpement (IRD); French Agence Nationale pour la Recherche [ANR-11-BSV7-009-01]; European Community [242095, 223601]info:eu-repo/semantics/publishedVersio

Use of a UAV for Water Sampling to Assist Remote Sensing of Bacterial Flora in Freshwater Environments

Ground truth data collection in bodies of water traditionally relies on the use of watercraft and manual sampling. The transport and cost associated with the use of this type of equipment, as well as the time required to reach the site of collection, may all be significantly reduced by the use of small unmanned aerial vehicles (UAV) or drones. In this project we evaluate the implementation of a modified UAV with the ability to collect a small volume of surface water up to 400m offshore. The bacterial flora found in the water of several locations in the Lake Ontario-Rochester Embayment area is then entered into a multi-year database that attempts to correlate hyperspectral data obtained by the Landsat 8 Operational Land Imager with the isolated bacterial species. We found that water collection using a consumer grade UAV facilitated sampling efforts, saving time and providing easy access to otherwise difficult to reach collection sites

Bacterial flora of conjunctiva after death

<b>AIM:</b>To evaluate the frequency of bacterial flora of conjunctiva after death (cadaver eyes) which will give information about the bacterial contamination of donor eyes, and the <i>in-vitro</i> sensitivity of isolated bacteria to the commonly used antibiotics in ophthalmic practice.<b>METHODS:</b> Conjunctival swabs were taken from the cadavers (motor vehicle accident deaths and patients who died in the hospital), within 6h after death, and sent for culture and sensitivity test. Conjunctival swabs, taken from the healthy conjunctiva of patients admitted for cataract surgery, were sent for culture and sensitivity as controls (eyes in those of living status). The bacterial isolates were tested against the commonly used antibiotics (chloramphenicol, gentamicin, ciprofloxacin) in ophthalmology practice.<b>RESULTS:</b> Bacteria were isolated in 41 out of 100 conjunctival swabs (41%), taken from 50 cadavers (study group). Coagulase negative <i>staphylococcus</i> was the most common bacteria isolated (15%), followed by <i>pseudomonas aeruginosa</i> (5%). Gentamicin was effective against majority of the bacterial isolates (82%). Bacteria were isolated from 7 out of 100 conjunctival swabs taken as control group (eyes in living state). Coagulase negative <i>staphylococcus</i> was the most common organism (5%) isolated in control group; the others were <i>staphylococcus aureus</i> (1%) and beta hemolyticus <i>streptococci</i> (1%).<b>CONCLUSION:</b> Bacteria were isolated from 41% of the cadaver eyes. High percentage sensitivity of the bacterial isolates to gentamicin (82%) supports the practice of thorough irrigation of the eyes with gentamicin solution before starting the procedure of enucleation followed by immersion of the enucleated eyeballs in gentamycin solution, to prevent the bacterial contamination

Increased concentration of Pseudomonas aeruginosa and Staphylococcus sp. in small animals exposed to aerospace environments

The effects of increased concentrations of PSEUDOMONAS AERUGINOSA AND STAPHYLOCOCCUS in the total bacterial flora of small animals exposed to simulated spacecraft environments were evaluated. Tests to detect changes in infectivity, effects of antibiotic treatments, immune responses to bacterial antigens, and effectiveness of immune responses in the experimental environment were conducted. The most significant results appear to be the differences in immune responses at simulated altitudes and the production of infection in the presence of a specific antibody

A Comparison of the bacterial flora of surface and sub-surface water of the sea off Ceylon

Under stable conditions of stratification of the sea, evidence of generic differences of the associated bacterial flora of the water masses has been obtained, between surface and sub-surface water. Gram negative rods, especially pseudomonads and achromobacters were more frequent at the surface. The fermentative and oxidase negative flora was more frequent in sub-surface water. The surface water in general had a greater variety of bacterial types while the sub-surface water had a flora with a greater range of biochemical activity. These results are discussed in relation to the hydrological condition of the water masses and the bacterial flora of freshly caught fish

The bacterial flora of enamel slip

Thesis (M.A.)--University of Kansas, Bacteriology, 1922. ; Includes bibliographical references

Correlation Between Plaque and Bacterial Flora

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142016/1/jper0634.pd

Study of the normal fecal bacterial flora of man

Space flight effect on normal fecal bacterial flora of ma