نتایج جستجو برای: villous atrophy
تعداد نتایج: 38590 فیلتر نتایج به سال:
Immunofluorescent studies were performed upon the small intestinal mucosa obtained by jejunal biopsy of seven patients suffering from the coeliac syndrome and six control subjects. Seven patients had normal villous morphology and six had subtotal villous strophy. In the group whose jejunal biopsies were normal using routine histological examination, the predominant type of immunoglobulin-contai...
Some characteristics of a newly recognized porcine enteric virus are described. Tentatively, the virus was referred to as porcine pararotavirus (PaRV) because it resembled rotaviruses in respect to size, morphology, and tropism for villous enterocytes of the small intestine. However, it was antigenically distinct from porcine, human, and bovine rotaviruses and reoviruses 1, 2, and 3, and the el...
We have investigated the gross, microscopic and molecular effects of carnitine deficiency in the neonatal gut using a mouse model with a loss-of-function mutation in the OCTN2 (SLC22A5) carnitine transporter. The tissue carnitine content of neonatal homozygous (OCTN2(-/-)) mouse small intestine was markedly reduced; the intestine displayed signs of stunted villous growth, early signs of inflamm...
BACKGROUND The detection of anti-transglutaminase IgA (tTG) and anti-endomysial (EMA) is used for screening of celiac disease (CD) with a sensitivity and specificity of 90 and 99% respectively. There is an association between CD and connective tissue diseases (CTD). AIM To report the frequency of IgA tTG and EMA in patients with a definite diagnosis of CTD and inflammatory arthropathies (IA)....
Cryptosporidium sp. parasitizes intestinal epithelium, resulting in enterocyte loss, villous atrophy, and malabsorptive diarrhea. We have shown that mucosal expression of inducible nitric oxide (NO) synthase (iNOS) is increased in infected piglets and that inhibition of iNOS in vitro has no short-term effect on barrier function. NO exerts inhibitory effects on a variety of pathogens; neverthele...
C eliac sprue is a chronic intestinal disorder caused by hypersensitivity to prolamins, the glutamineand proline-rich gluten proteins contained in wheat, rye, and barley. Genetically predisposed subjects who ingest cereal proteins develop an inflammatory enteropathy characterized by proliferation of intraepithelial lymphocytes, crypt hyperplasia, and partial or complete atrophy of small intesti...
BACKGROUND AND STUDY AIMS Celiac disease is increasingly recognized worldwide, but guidelines on how to detect the condition and diagnose patients are unclear. In this study the prevalence and predictors of celiac disease were prospectively determined in a cross-sectional sample of Lebanese patients undergoing esophagogastroduodenoscopy (EGD). PATIENTS AND METHODS Consecutive consenting patie...
BACKGROUND & AIMS The mechanisms of tissue destruction during progression of celiac disease are poorly defined. It is not clear how tissue stress and adaptive immunity contribute to the activation of intraepithelial cytotoxic T cells and the development of villous atrophy. We analyzed epithelial cells and intraepithelial cytotoxic T cells in family members of patients with celiac disease, who w...
Twelve Tuli weaner steers aged 1 year were randomly subdivided into three groups of four animals and infected with different doses of Calicophoron microbothrium metacercariae. Each animal in Group I received a low dose (LD) of 5 000 metacercariae, Group II a medium dose (MD) of 15 000 metacercariae, Group III a high dose (HD) of 25 000 metacercariae and one additional animal was kept as an unin...
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