Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027819 (neuroblastoma)
 27,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The host-parasite relationship of Fasciola hepatica in cattle was characterized by determining the effects of the parasite on the bovine complement system. Phosphosaline extracts of F. hepatica adults inhibited both the classical and alternative pathways of complement activation in normal bovine and human sera in a protein dose-dependent manner. The in vitro reaction of viable newly excysted juveniles (NEJ) with bovine serum (NBS) and with bovine serum containing antibodies specific to F. hepatica (IBS) resulted in no detectable changes in serum hemolytic complement activity for either pathway. This lack of complement consumption occurred even though these same flukes incubated in IBS for at least 24 h developed a precipitate that adhered to the parasite tegument, a feature that may reflect antibody--antigen reactions.
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PMID:Interaction of bovine complement with Fasciola hepatica. 396 63

This study evaluated the various growth parameters among patients presenting with chronic diarrhea and highlight the most common causes of chronic diarrhea among a sample of Egyptian infants and children. This cross-sectional study included 146 patients with chronic diarrhea. They were 87 males and 59 females, with age ranging between 2 and 198 months and a mean age of 27.3 +/- 34.5 months. Each patient was subjected to medical history taking including age of onset and duration of diarrhea, consistency of stools, presence of blood and mucus, vomiting with or without hematemesis, fever, allergic manifestations and family history of atopy. Dietetic history included milk feeding during the first 6 months and age of weaning and age of introduction of cow's milk products. Anthropometric measurements included weight and height and weight for height were assessed and z-scores were calculated using software WHO anthro v3.2.2. Laboratory investigations included stool analysis and culture, CBC and all other investigations necessary for diagnosis of the definite cause including RAST for specific IgE against cow's milk proteins, serology for celiac disease (anti-gliadin and anti tTG), Breath hydrogen test, endoscopy (colonoscopy or esophago-gastrodudenoscopy) and histopathologic assessment of endoscopic biopsies. CMA was diagnosed on basis of withdrawal and open re-challenge technique. Causes included chronic infections (40.4%), CMA (34.9%), celiac disease (10.3%), inflammatory bowel disease (6.8%) and lactose intolerance (3.4%). Rare causes were chronic non-specific diarrhea (1.3%), cystic fibrosis (0.7%), post-surgery short bowel syndrome (0.7%), neuroblastoma (0.7%) and IBS (0.7%).78.7% of patients enrolled in the study had a low WFA z-score (< -2), 75% had low length for age z-score (<-2) and 50.7% showed wasting with low weight for height z-scores (< -2). Patients with IBD had the lowest mean value of WFA and HFA z-scores (-4.03 +/- 3.23, -6.31 +/- 3.74 respectively). Infants with CMA had the lowest mean value of WFH z-score (-2.26 +/- 1.78).
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PMID:Growth assessment in Egyptian infants and children with chronic diarrhea. 2346 34

Serotonin, 5-hydroxytryptamine, is a systemic bioactive amine that acts in the gut and brain. As a substrate of myeloperoxidase in vitro, serotonin is oxidized to tryptamine-4,5-dione (TD), which is highly reactive with thiols. In this work, we successively prepared a monoclonal antibody to quinone-modified proteins and found that the antibody preferentially recognizes the TD-thiol adduct. Using the antibody, we observed that the chloride ion, the predominant physiological substrate for myeloperoxidase in vivo, is not competitive toward the enzyme catalyzed serotonin oxidation process, suggesting that serotonin is a plausible physiological substrate for the enzyme in vivo. Immunocytochemical analyses revealed that TD staining was observed in the cytosol of SH-SY5Y neuroblastoma cells while blot analyses showed that some cellular proteins were preferentially modified. Pull-down analyses confirmed that the cytoskeletal proteins tubulins, vimentin, and neurofilament-L were modified. When pure tubulins were exposed to micromolar levels of synthetic TD, self-polymerization was initially enhanced and then suppressed. These results suggest that serotonin oxidation by myeloperoxidase or the action of other oxidants could cause functional alteration of cellular proteins, which may be related to neurodegeneration processes or irritable bowel syndrome.
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PMID:Covalent modification of cytoskeletal proteins in neuronal cells by tryptamine-4,5-dione. 2546 Jul 34