Faqja 1 nga 57 rezultatet
The study of the effect of equimolar concentrations (3.7 micromol/kg) of the tripeptide PGP and its possible metabolites--PG, GP, proline, and glycine--on ethanol-, stress-, and indomethacin-induced ulcer development in rats showed that only PGP exhibited consistent antiulcer effects on all three
A 41-year-old man with prolidase deficiency has had chronic leg ulcers and recurrent cellulitis for most of his life. Until recently he had been hospitalized at least annually for this and suffered significant morbidity as a result. Since commencing topical 5% proline in white soft paraffin ointment
BACKGROUND
Prolidase deficiency is a rare disease. Lower leg recalcitrant ulcerations are the most characteristic symptoms.
METHODS
Woman diagnosed of prolidase deficiency with leg recalcitrant and infected ulcerations. Dermatology service solicits a proline and glycline containing ointment after
Intraperitoneal administration of the PGP did not change basal mucosal blood flow, whereas the PG and GP significantly decreased it. Ethanol and Indomethacin caused a rapid and stable decrease in the blood flow. Administration of the PGP prior to ethanol abolished this effect. Injections of the PGP
The roles of polypeptide growth factors in promoting wound healing and in directing the specificity and sequence of responses of different tissues in wounds are little understood. We investigated the influence of four growth factors on the rates of healing of a novel full thickness dermal ulcer
Fibroblasts (FIB) play an important role in the wound-healing process. It is not known whether human skin and gastric FIB show different responses to regulatory compounds. In this study, we have examined the collagen production by these FIB after different stimuli. In vitro release of collagen into
Helicobacter pylori is a microaerophilic bacterium associated with gastric inflammation and peptic ulcers. Knowledge of how pathogenic organisms produce energy is important from a therapeutic point of view. We found d-amino acid dehydrogenase-mediated electron transport from d-proline or d-alanine
A dermal ulcer wound-healing model was established in rabbit ear to examine the effects of recombinant human transforming growth factor-beta 1 (rhTGF-beta 1) in wound healing. Histomorphometric examination of the wounds indicate a biphasic healing response 7 days after a single application of
Aspirated fasting gastric juice from patients with lesions of the gastrointestinal tract and from healthy controls was analysed for nitrite before and after (30, 90, and 240 min) oral administration of 200 mg nitrate. Wilcoxon's rank-sum tests showed no significant differences in fasting gastric
Compelling evidence suggests that nitric oxide (NO*), a metabolite of arginine, plays an important role in wound healing. Arginine is a semi-essential amino acid that is metabolized by nitric oxide synthase and arginase. One model for wound-healing regulation suggests the importance of strict
Failure to reepithelialize is the major clinical problem in venous ulcers. It is not clear whether the problem resides with keratinocytes or with inadequate and improper formation of extracellular matrix. In this study, we characterized the biosynthetic activity and response to transforming growth
The effects of essential fatty acid (EFA) deficiency on connective tissue metabolism were studied in rats deficient in EFA and prostaglandins (PG). In chronic EFA deficiency, 3H-proline fixation, a measure of protein synthesis, was markedly reduced in the stomach, liver, adrenal, kidney, spleen,
Disaminoacidemia was shown to be of much higher degree in involvement of the intestinal hepatobiliary system in patients with ulcer disease, in addition, in elderly and old people the content of free amino acids (AA) in the blood serum is significantly reduced. Present in the least amounts are
Alkaline hydrolysis of corneal proteins in the alkali-injured eye releases N-acetyl-proline-glycine-proline (Ac-Pro-Gly-Pro-OH) among other peptides. It has been shown that this tripeptide is a neutrophil chemoattractant. Existing data suggest that the release of this peptide is the catalytic event