Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:3.1.3.1 (alkaline phosphatase)
 47,916 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The compound p-aminobenzylphosphonic acid has been coupled via an azo linkage to tyraminyl-Sepharose 4B. This derivative at pH 6.0 bound most of the protein and all of the alkaline phosphatase in a crude preparation from human liver. The phosphatase was selectively eluted with the substrate 2-naphthylphosphate and a purification of 400-fold obtained. This step, when incorporated into a procedure for the purification of human liver alkaline phosphatase, yielded essentially pure enzyme.
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PMID:Affinity elution from a phosphonic acid-Sepharose derivative in the purification of human liver alkaline phosphatase. 54 66

Alkaline-phosphatase activity and the physico-chemical properties of the liver, lung, spleen, kidney, intestine, bone and placenta of 25 clinically healthy cattle and 30 clinically healthy sheep were investigated. High alkaline phosphatase activity was detected in kidneys and intestines. The alcaline phosphatase of cattle and sheep liver, spleen, kidney, lung, bone and placenta was thermo-labile and sensitive to l-arginine, l-homoarginine and imidazole, but was not sensitive to l-phenylalanine. Bone phosphatase of cattle and sheep was sensitive to urea. Intestinal phosphatase of cattle proved thermostable, sensitive to l-phenylalanine and not sensitive to l-arginine, l-homoarginine, imidasol and urea. Agarose gel electrophoresis of alkaline phosphatase indicated the presence of one fraction only and liver alkaline phosphatase proved to be the fastest. Sheep liver alkaline phosphatase had two fractions while sheep intestinal and placental alkaline phosphatase had three fractions and some of them were faster than liver alkaline phosphatase.
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PMID:[Alkaline phosphatase activity and properties in the organs of cattle and sheep]. 54 64

Sixteen patients with Paget's disease of bone aged from 51 to 80 years was treated daily with 20 micrograms (equivalent to 80 MRCU) synthetic salmon calcitonin. Fourteen patients was observed on a long time. In all cases was observed significant reductions in increased serum alkaline phosphatase. The urinary hydroxyproline excretion was also decreased. Other laboratory dates as serum calcium, serum phosphorus, serum acide phosphatase, urinary calcium and phosphorus excretion was not significantly influenced by the therapy. The treatment produced a clear remission of pain. After treatment of 6 months the dose was reduced (2 or 3 injections subcutaneously of 20 micrograms salmon calcitonin weekly). There was observed a recurrence of pain and an increase of serum alkaline phosphatase, but not until the pretreatment values. These results confirm the effectiveness of calcitonin treatment in Paget's disease of bone.
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PMID:[On the treatment of the osteodystrophia deformans (Paget's disease) with synthetic salmon calcitonin (author's transl)]. 57 Jul 64

Young chicks were fed diets deficient in proteins, iron, niacin or thiamin to study the effects on various parameters of mineral metabolism in the duodenal mucosa. None of the treatments affected mucosal alkaline phosphatase activity; however, a five-day deprivation of protein reduced the inorganic phosphate content of mucosal cell nuclei. Iron deficiency reduced mucosal Ca, Zn, Fe and phosphate content, while niacin deficiency decreased mucosal Ca and phosphate. Thiamin deficiency reduced only the phosphate centent of intestinal mucosa. Duodenal phosphatase activity was positively correlated with tissue Ca and Fe and negatively with Zn.
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PMID:Relationship of dietary protein, iron, niacin or thiamin to intestinal mineral metabolism. 60 17

Investigations were performed to evaluate the activities of serum glutamic oxalacetic and glutamic pyruvic transaminases, alkaline phosphatase and lactate-dehydrogenase enzymes in rats intoxicated by different doses of carbon disulfide. Serum GOT and GPT activities were elevated which may be due to CS2 effect on cell membrane permeability. Serum-alkaline-phosphatase activity showed also increment, which was again attributed to the liver affection. A significant rise in serum-lactate-dehydrogenase activity which was referred to be as a result of muscle-lactate dehydrogenase release into the blood circulation.
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PMID:Serum enzyme changes associated with carbon disulfide hepatotoxicity in experimental animals. 60 28

Seminal fructose, citric acid and phosphatase levels were estimated in 60 normal adults and compared with 60 oligospermic and 24 azoospermic Indian subjects. In normal group, the seminal plasma fructose level and acid phosphatase activity showed a fall as the sperm count increased. As compared to normals, significantly higher mean values for fructose and acid phosphatase activity were observed in oligospermic and azoospermic groups. Seminal alkaline phosphatase activity did not show any relationship with sperm count. Similarity in changes observed in seminal fructose and acid phosphatase levels with respect to seminal citric acid content and sperm concentration suggests that both these parameters are probably regulated by similar physiological mechanism.
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PMID:Seminal fructose, citric acid and phosphatase levels and their relation to the sperm count in man. 61

The proportions of the total activities of different isoenzymes of human alkaline phosphatase precipitated from serum by ethanol (20% v/v) were: liver phosphatase, 37%; placental phosphatase, 23%; bone phosphatase, 8.0%, and small-intestinal phosphatase, 3.7%. Treatment of the isoenzymes with neuraminidase reduced the percentages of non-intestinal phosphatases precipitated by ethanol to below 10%. Precipitation of intestinal alkaline phosphatase was unaffected by this treatment. The degree of solubility in ethanol therefore appears to be largely determined by the content of terminal sialic acid residues in the alkaline phosphatase molecules. In contrast the stabilities of the isoenzymes to heating at 56 degrees C were not significantly altered by neuraminidase digestion.
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PMID:Further observations on the differential precipitation of alkaline phosphatase isoenzymes by ethanol. 62 Apr 61

A procedure has been described whereby the high molecular weight alkaline phosphatase (slow-moving) isoenzyme may be studied by means of polyacrylamide gel electrophoresis. By treatment of sera containing this isoenzyme with some detergents of the nonionic Triton octylphenoxyethanol series, the high molecular weight alkaline phosphatase isoenzyme is altered so that its electrophoretic mobility more closely resembles that of the usual alklaine phosphatase isoenzymes. The high molecular weight isoenzyme is thought to be associated with phosphatidyl choline and/or liproproteins. The detergent action is to dissociated the alkaline phosphatase from its lipid carrier. It is thought that these lipid-alkaline phosphatase complexes are associated with liver cell fragments. The detergent altered slow-moving alkaline phosphatase may migrate as a single band, from two to four new bands, or as several new bands. Liver, bone and intestinal alkaline phosphatase isoenzymes are unaffected by detergent action.
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PMID:Detergent altered alkaline phosphatase patterns of liver disease. 62 28

The investigation of alkaline phosphatase activity on 80 rabbits with an experimental model of liver wound showed the following results: 1. Alkaline phosphatase in blood serum was elevated considerably during the first postoperative days, but after the fifth day was close to the normal ranges. 2. Tissue alkaline phospatase sharply fell up to the third day. Its values began to raise after the 20th day and reached the normal level in the end of the experimental period (30th day). 3. Histochemical studies of liver wound showed a positive reaction for alkaline phosphatase in the cells of the inflammatory infiltrate during the first days. Increased phosphatase activity was demonstrated in fiber structures, epithelium of bile canals and capillary endothelium. The dynamics of alkaline phosphatase activity in blood serum is a reflection of the delicate biochemical and histochemical changes in the liver wound. The follow-up of serum alkaline phosphatase together with the clinical course of healing could be an useful index for evaluation of diet and working capacity of the patient.
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PMID:[Experimental study of the dynamics of alkaline phsophatase activity after a liver wound]. 65 6

When rats are hypophysectomized in neonatal life, the growth of the small intestine is more severely retarded than the growth of the body as a whole. It was shown previously that intestinal growth is not rectified by doses of cortisone and/or throxine that restore normal activity of brush border enzymes in hypophysectomized sucklings; growth hormone did not affect relative weight or enzyme activity. Reexamination of this problem with much lower doses of hormones than previously employed has now shown that relative weight of the intestine is enhanced by cortisone and thyroxine together, and is normalized by cortisone and thyroxine in combination with rat growth hormone. Growth induced by treatment with the three hormones involved increases of crypt depth and villus height, and of mitotic index. Body weight was not affected by hormonal treatment, but the tails of the hypophysectomized sucklings were significantly lengthened by thyroxine alone, the effect being enhanced when growth hormone was also given. The physiological dose of hormones used in the present study were as effective in elevating activity of alkaline phosphatase and sucrase as the larger doses previously used. Cortisone had a greater effect on sucrase, thyroxine on phosphatase. Pentagastrin did not influence either growth or enzyme activity.
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PMID:Hormonal influences on the growth and enzymic differentiation of the small intestine of the hypophysectomized rat. 75 Mar 12


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