Search results
Results From The WOW.Com Content Network
Severity of the disease depends on quantity of organisms ingested, other gastrointestinal pathogens present, prior exposure and the immune system of the animal. [23] Since the optimal growth temperature, and pH for Campylobacter species are between 37 and 42 °C, and 6.5–7.5 respectively, the GI tract provides a good environment for its ...
It requires a minimum of 2 days and maximum of several weeks to culture gastrointestinal pathogens. The sensitivity (true positive) and specificity (true negative) rates for stool culture vary by pathogen, although a number of human pathogens can not be cultured. For culture-positive samples, antimicrobial resistance testing takes an additional ...
Gastrointestinal pathology (including liver, gallbladder and pancreas) is a recognized sub-specialty discipline of surgical pathology.Recognition of a sub-specialty is generally related to dedicated fellowship training offered within the subspecialty or, alternatively, to surgical pathologists with a special interest and extensive experience in gastrointestinal pathology.
Other stool tests involve the detection of antibiotic resistance as to guide appropriate therapy, e.g. Clarithromycin resistance of Helicobacter pylori represents a major challenge in eradication therapy but the responsible bacterial genomic markers can be detected in stool using PCR technology and thus can guide the prescription of the ...
This was the first report of a PVA degrader from the Enterobacter genus. [4] E. cloacae was also reported to produce exopolysaccharide (EPS) as high as 18.3g/L. [ 5 ] GC-MS analysis of E. cloacae EPS showed the presence of glucose and mannose in the molar ratio of 1: 1.5e −2 .
Genetic testing, such as via polymerase chain reaction (PCR), DNA microarray, and loop-mediated isothermal amplification, may be used to detect whether bacteria possess genes which confer antibiotic resistance. [9] [23] An example is the use of PCR to detect the mecA gene for beta-lactam resistant Staphylococcus aureus. [9]
Shigella spp. and Salmonella spp. are other common bacterial pathogens. Campylobacter, Yersinia, Aeromonas, and Plesiomonas spp. are less frequently found. Mechanisms of action vary: some bacteria release toxins which bind to the intestinal wall and cause diarrhea; others damage the intestines themselves by their direct presence. [citation needed]
Salmonella is the leading foodborne pathogen in the United States, causing the most deaths and having the highest cost burden. [8] It is a resilient microorganism capable of surviving long periods of time in hot and dry environments, increasing its effectiveness as a pathogen and making it able to survive the harsh environments of the ...