Crab meat is a valuable source of proteins and functional lipids and it is widely consumed worldwide. However, the prevalence of crab allergy has increased over the past few years. In order to understand crab allergy better, it is necessary to identify crab allergens. The aim of the present study was to compare the IgEbinding proteins of raw and cooked extracts of mud crab (Scylla serrata). Raw and cooked extracts of the mud crab were prepared. Protein profiles and IgE reactivity patterns were identified by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) followed by immunoblotting using sera from 21 skin prick test (SPT) positive patients. In SDS-PAGE, 20 protein bands (12 to 250 kDa) were observed in the raw extract while the cooked extract demonstrated fewer bands. Protein bands between 40 to 250 kDa were sensitive to heat denaturation and no longer observed in the cooked extract. In immunoblotting experiments, raw and cooked extracts demonstrated 11 and 4 IgE-binding proteins, respectively, with molecular weights of between 23 and 250 kDa. A heat-resistant 36 kDa protein, corresponding to crab tropomyosin was identified as the major allergen of both extracts. In addition, a 41 kDa heat-sensitive protein believed to be arginine kinase was shown to be a major allergen of the raw extract. Other minor allergens were also observed at various molecular weights.
Arginine Kinase

No abstract available.
Arginine* ; Humans* ; Semen*

No abstract available.
Arginine* ; Humans* ; Semen*

OBJECTIVE: To determine the effects of arginine in the rates of sputum conversion in patients with drug-sensitive pulmonary tuberculosis.

METHODS: Studies from PubMed, Medline, EMBASE, and Cochrane were reviewed and appropriate studies were included. Randomized controlled trials comparing arginine with placebo in adult patients with drug-sensitive pulmonary tuberculosis were included. The risk of bias was assessed using the Cochrane Risk of Bias tool. A meta-analysis of the rate of sputum conversion at 8 weeks, was conducted. Post hoc analyses of sputum conversion at 4 weeks and cough reduction at 4 and 8 weeks were done.

RESULTS: Three articles included in this study had a pooled population of 452 participants. This meta-analysis showed no significant difference in the sputum conversion at 4 and 8 weeks, with a relative risk of 0.96 (95% CI 0.77-1.20) and 1.07 (95% CI 0.96-1.19), respectively. However, the cough was significantly reduced at 4 and 8 weeks, with subtotal relative risks of 0.91 (95% CI 0.82-1.00) and 0.43 (95% CI 0.22-0.81), and total relative risk for cough reduction of 0.83 (95% CI 0.73-0.93).

CONCLUSION: While arginine may not significantly reduce sputum conversion rates, it may be used as an adjunct to decrease cough in patients with tuberculosis.

No abstract available.
Arginine Vasopressin* ; Arginine* ; Central Nervous System Diseases* ; Child* ; Humans

No abstract available.
Arginine Vasopressin* ; Arginine* ; Central Nervous System Diseases* ; Child* ; Humans

BACKGROUND: The selection of identification (ID) system of enterococci depends mainly on the accuracy of ID system, cost of operation and convenience of testing. Commercial ID kits are easy to use but too expensive. The aim of the study was to develop a simple system for the identification of species of enterococci which are frequently isolated from clinical specimens. METHODS: Eight conventional biochemical tests selected for the simple ID method were hemolysis pattern, NaCl-esculin hydrolysis, tellurite tolerance, arginine dihydrolase, acid from arabinose, raffinose and methyl-alpha-D-glucopyranoside, and pigment production. Ninety one consecutive strains of enterococci from clinical specimens isolated during the period of April 1988 were tested by the simple ID method, and API rapid ID 32 STREP. RESULTS: Simple ID method with 15 ID codes was established to identify 13 species of enterococci. Among the 91 isolates tested, 88 (96.7%) were identified to the species level of enterococci by simple ID method. CONCLUSIONS: The simplified conventional ID method is simple, reliable and economical. Further modification may improve the accuracy of the enterococcal species identification system.
Arabinose ; Arginine ; Hemolysis ; Hydrolysis ; Raffinose

Arginine Vasopressin ; Humans ; Motion Sickness

No abstract available.
Child* ; Deamino Arginine Vasopressin* ; Humans ; Osmolar Concentration*

BACKGROUND: Recent genome-wide sequencing studies have identified unexpected genetic alterations in cancer. In particular, missense mutations in isocitrate dehydrogenase-1 (IDH1) at arginine 132, mostly substituted into histidine (IDH1-R132H) were observed to frequently occur in glioma patients. METHODS: We have purified recombinant IDH1 and IDH1-R132H proteins and monitored their catalytic activities. In parallel experiments, we have attempted to find new selective IDH1-R132H chemical inhibitor(s) from a fragment-based chemical library. RESULTS: We have found that IDH1, but not IDH1-R132H, can catalyze the conversion of isocitrate into alpha-ketoglutarate (alpha-KG). In addition, we have observed that IDH1-R132H was more efficient than IDH1 in converting alpha-KG into (R)-2-hydroxyglutarate (R-2HG). Moreover, we have identified a new hit molecule, e.g., 2-(3-trifluoromethylphenyl)isothioazol-3(2H)-one as a new selective IDH1-R132H inhibitor. CONCLUSIONS: We have observed an underlying biochemical mechanism explaining how a heterozygous IDH1 mutation contributes to the generation of R-2HG and increases cellular histone H3 trimethylation levels. We have also identified a novel selective IDH1-R132H chemical hit molecule, e.g., 2-(3-trifluoromethylphenyl)isothioazol-3(2H)-one, which could be used for a future lead development against IDH1-R132H.
Arginine ; Glioma ; Histidine ; Histones ; Humans ; Mutation, Missense