نتایج جستجو برای: stool and biopsy samples
تعداد نتایج: 16857209 فیلتر نتایج به سال:
OBJECTIVE Helicobacter Pylori (H.pylori) is one of the most important causes of dyspepsia and diagnosis can be made by invasive or non-invasive methods. One of the non-invasive methods, H.pylori stool antigen test (HpSA) is simple, fast and relatively inexpensive. According to this view with regard to gastric biopsy as a gold standard the sensitivity, specificity, positive and negative predicti...
Human dicrocoeliosis is reported sporadically in various parts of the world. We report a case in a 21-year-old male, who had right upper abdominal pain, weight loss, and chronic relapsing watery diarrhea three to four times daily for four weeks. The patient had abdominal tenderness to palpation in the right upper quadrant. Alkaline phosphatase, alanine aminotransferase, and serum immunoglobulin...
introduction: helicobacter pylori infection has various clinical features. one of the most common presentations of this infection is upper abdominal pain. complications such as gastritis, gastric ulcer, gastric carcinoma and malt lymphoma mandate early diagnosis of h.p infection by a low cost and non invasive manner. the aim of this study was to evaluate the diagnostic role of h.p stool antigen...
background: strongyloidiasis is mostly an asymptomatic infection and diagnosis of latent infections is difficult due to limitations of current parasitological and serological methods. this study was conducted to set up a pcr-based method for molecular diagnosis of strongyloides stercoralis infection by detection of copro-dna in stool samples. methods: a total of 782 fresh stool samples were c...
For detection of Helicobacter pylori, bacterial culture and histopathological examination are invasive in nature, whereas the fast urease test and urea breath test are non-invasive and indirect methods of detection. Stool antibody tests and polymerase chain reaction (PCR) to detect genomic DNA are serological methods, which are preferred to invasive examinations. Our aim was to assess diagnosti...
determination of uranium in natural water and complex solutions using ion exchange chromatography: a combined procedure using ion exchange chromatography and uv-vis spectrophotometry techniques has been developed to measure uranum in natural water and complex solutions. after conditicing , one hundred milli liters of sample solutions have been passed through an ion exchange column,pachked with ...
BACKGROUND An 18-month-old boy developed encephalopathy, for which extensive investigation failed to identify an etiology, 6 weeks after stem cell transplant. To exclude a potential infectious cause, we performed high-throughput RNA sequencing on brain biopsy. METHODS RNA-Seq was performed on an Illumina Miseq, generating 20 million paired-end reads. Nonhost data were checked for similarity t...
Introduction: Blastocystis is one of the most common intestinal parasites of humans and many animals. It has a worldwide distribution. The probability of clinical manifestation has been increased among Immunocompromised patients such as those receiving chemotherapy or patients with malignancy. However, infection is often asymptomatic or self-limited in healthy individuals. The present study aim...
background detection of fastidious enteropathogenic bacteria in fecal samples of patients with gastroenteritis is a challenge in clinical microbiological laboratories. objectives the aim of this study was to compare the detection limits of the pcr and culture methods for the diagnosis of campylobacter spp., yersinia spp., clostridium perfringens, and clostridium difficile in human stool samples...
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