Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound   Target Concepts: 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)

Proteins, which are elevated in their blood concentration in pregnant women and patients suffering from malignant tumours, are reported because of their growing significance for the clinical practice. At present mainly are the following "pregnancy" proteins of clinical relevance: human chorionic gonadotrophin (HCG), human placental lactogen (HPL), placental heatstable alkaline phosphatase (HAP), pegnancy-associated alpha2-glycoprotein ("pregnancy zone" protein, PZ), socalled pregnancy-specific beta1-glycoprotein (SP1) and alpha1-fetoprotein (AFP). Applications to the clinical practice may be the surveillance of normal pregnancy, the recognition of dangerous conditions for mother and fetus, the inhibition of graft rejection, the induction of abortion, antibodies against pregnancy proteins as abortifacient and antifertilizer as well as the tumour diagnosis including the control of treatment and recognition of recidives.
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PMID:[Pregnancy proteins]. 7 23

Difficulties arise in the interpretation of liver tests in the pregnant subject, since some values increase (alkaline phosphatase) whilst others remain unchanged (transaminases) or fall during pregnancy. The diagnosis and management of some causes of jaundice in pregnancy, such as viral hepatitis, gall stones, benign intrahepatic cholestasis and acute fatty liver of pregnancy are discussed. Little is known about the commonest symptoms of pregnancy (nausea, vomiting and constipation) other than that they might be due to hormonally induced alteration of sphincter tone. However, pre-existing bowel disease has a greater effect on pregnancy. Fertility is reduced in poor nutritional states (e.g. coeliac and Crohn's diseases) and an increased occurrence of spontaneous abortion has been noted. For inflammatory bowel diseases, the time of onset is important in determining the outcome of pregnancy. Relapse in the disease is commonest in the first trimester and in the puerperium. Treatment of these conditions is essentially as in the non-pregnant subject. The controversial subject of sulphasalazine and steroid usage in pregnancy is discussed.
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PMID:Liver and gastrointestinal function in pregnancy. 38 67

An intramuscular dose schedule of 15(S)-15-methyl-prostaglandin E2-methyl ester (15-(S)-ME PGE2) was evaluated for its application as a midtrimester abortifacient route. 20 healthy gravidas aged 18-42 years and 8-22 menstrual weeks of gestation were aborted in the Clinical Research Unit of the University of North Carolina Memorial Hospital. The subjects were given 5 mcg of the PGE2 methyl ester every 4 hours. 85% (17/20) aborted within 48 hours, 65% (13/20) of these within 24 hours. Mean induction-abortion interval was 21 hours. Trials were defined as complete in 55%, incomplete in 30%, and failure in 15%. Shivering, fever, pain, vomiting, and diarrhea were the most common side effects. The transient shivering occurred in 13 (65%) of the subjects within 20 minutes of the first dose. Fever usually started after shivering, and both resolved spontaneously. 2 patients had estimated blood loss exceeding 500 ml, but they were not given transfusions. No clinically significant changes occurred in mean hemotocrit, platelet count, serum creatinine, bilirubin, alkaline phosphatase, electrolytes, serum glutamic oxalacetic transaminase, and serum glutamic pyruvic transaminase. Mean blood cell and neutrophil counts increased, but neither increase was statistically significant.
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PMID:Intramuscular administration of 15(S)-15-methylprostaglandin E2-methyl ester for induction of abortion. 442 93

Placental alkaline phosphatase (PLAP) and germ cell alkaline phosphatase (GCAP) are controlled by closely linked genes on chromosome 2q34-q37. In previous investigations, associations have been found between PLAP types and spontaneous abortion. In this study, PLAP and GCAP RFLPs and haplotypes were found to show highly significant associations with spontaneous abortions in the Finnish and Swedish populations. However, different associations were found in the Finnish and Swedish populations. The Finnish abortions were associated with the GCAP allele PstI(b) 2 and the Swedish abortions with the PLAP allele PstI(a) 2. A possible mechanism behind the associations may therefore be linkage disequilibria with deleterious alleles within or close to the alkaline phosphatase gene complex.
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PMID:Placental and germ cell alkaline phosphatase RFLPs and haplotypes associated with spontaneous abortion. 759 Jul 59

We report the establishment of a human fetal osteoblast cell line derived from biopsies obtained from a spontaneous miscarriage. Primary cultures isolated from fetal tissue were transfected with a gene coding for a temperature-sensitive mutant (tsA58) of SV40 large T antigen along with a gene coding for neomycin (G418) resistance. Individual neomycin resistant colonies were screened for alkaline phosphatase (AP)-specific staining. The clone with the highest AP level, hFOB 1.19, was examined further for other osteoblast phenotypic markers. Incubation of hFOB cells at the permissive temperature (33.5 degrees C) resulted in rapid cell division, whereas little or no cell division occurred at the restrictive temperature (39.5 degrees C). Both AP activity and osteocalcin (OC) secretion increased in a dose-dependent manner following dihydroxyvitamin D3 (1,25-D3) treatment when cultured at either temperature. However, AP and 1,25-D3-induced OC levels were elevated in confluent hFOB cells cultured at 39.5 degrees C compared with 33.5 degrees C. Treatment of hFOB cells with 1-34 parathyroid hormone (PTH) resulted in an increase in cAMP levels. Upon reaching confluence, hFOB cultures went through programmed differentiation and formed mineralized nodules as observed by von Kossa staining. Further, immunostaining of postconfluent, differentiated hFOB cells showed that high levels of osteopontin, osteonectin, bone sialoprotein, and type I collagen were expressed. Therefore, the clonal cell line hFOB 1.19 provides a homogeneous, rapidly proliferating model system to study certain stages of human osteoblast differentiation.
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PMID:Development and characterization of a conditionally immortalized human fetal osteoblastic cell line. 775 97

Salmonella abortusovis is a pathogenic bacterium highly specific to sheep, causing spontaneous abortion. In order to understand the role of genes involved in pathogenicity, we investigated S. abortusovis with the random mutagenic TnphoA transposon. A total of 95 S. abortusovis TnphoA mutants yielding alkaline phosphatase active fusion protein were obtained. In this way we created a bank of strains in order to identify any phenotypic modification which could affect the periplasmic and/or exported proteins involved in virulence. The TnphoA mutants were screened for the ability to adhere to epithelial cells: a total of 23 mutant strains lost this phenotypic feature. To detect the chromosomal TnphoA insertions, DNA was restricted by the enzyme EcoRV, which does not cleave the TnphoA sequence. Southern blotting analysis revealed the existence of four classes of integration. Colonies of adhesiveless mutants appear to be as smooth as the S. abortusovis wild type, and electrophoretic analysis indicates a normal lipopolysaccharide profile. To identify mutations affecting genes encoding for outer membrane proteins (OMPs), the alkaline phosphatase portion of the fusion proteins was revealed in TnphoA mutants by immunoblotting with specific antibodies. A mutation in OMPs was detected in seven mutants. Restriction analysis identified in four mutants a common region of 2 kb where alterations in genes coding for OMPs occur. We suggested that this region is involved in pathogenicity in mice, since a group of mutant strains has shown reduced virulence in mice and one mutant is completely avirulent. Furthermore, after mice were exposed orally to these mutants, significant protection against oral challenge with the parental virulent strain resulted.
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PMID:TnphoA Salmonella abortusovis mutants unable to adhere to epithelial cells and with reduced virulence in mice. 838 3

One hundred twenty eight women were submitted to research including: 38 healthy not pregnant women, 40 healthy women in the first trimester of uncomplicated pregnancy (6-15 weeks) and 50 pregnant women with symptoms of threatened abortion (6-15 weeks). The following parameters were measured in serum: total Ca, Ca++, ionised inorganic phosphorus (Pi), magnesium (Mg), total protein and albumin and also total alkaline phosphatase activity (APt). Micromethods generally accepted in clinical laboratories were used. The study showed symptoms of threatened abortion are related to decreased concentrations of Pi, Mg, total protein and albumin and reduced activity of APt. Women who did not underwent miscarriage showed significantly higher Pi concentration compared to those who lost pregnancy, what might be of prognostic value. Threatened abortion was not considered to alter calcium homeostasis.
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PMID:[Calcium-phosphorus-magnesium homeostasis in women with threatened abortion]. 929 37

Parvovirus B19 can be transmitted transplacentally from the infected mother to the fetus during pregnancy, and hydrops fetalis, abortion, or stillbirth can result. In our study we explored the use of chemiluminescence in situ hybridization to detect B19 DNA on cord blood cells, amniotic fluid cells, and pleuric fluid cells from several cases of hydrops fetalis. B19 DNA was detected by using digoxigenin-labeled probes immunoenzymatically visualized with the chemiluminescent adamantil-1,2-dioxetane phenyl phosphate substrate for alkaline phosphatase. The luminescent signal emitted from the hybridized probes was detected, analyzed, and measured with a high-performance, low-light-level imaging luminograph connected to an optical microscope and to a personal computer for the quantification and localization of the chemiluminescent emission inside individual cells.
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PMID:Prenatal diagnosis of parvovirus B19-induced hydrops fetalis by chemiluminescence in situ hybridization. 1036 6

A study was performed to determine the possible toxic effects on the young of does that had been fed during the gestational period on a ration containing Solanum malacoxylon (Sm), a calcinogenic plant that contains a vitamin D3-glycoside conjugate. Experimental animals received a ration containing 0.03% or 0.04% of Sm leaves on days 6 to 30 of gestation. The levels of calcium, phosphorus and alkaline phosphatase in their sera, as well as their feed intake and body weight, were evaluated weekly. The does were euthanized 3 days after parturition and paraffin sections stained with haematoxylin and eosin were prepared from their heart, lungs, kidneys and aorta for histopathological examination. The young from does in the Sm 0.03% group were euthanized 3 days after birth and biochemical and histopathological determinations were performed, as described for the does. The does in both experimental groups showed decreased feed consumption and those in the Sm 0.04% group showed lower body weights throughout their gestation. Animals treated with Sm 0.04% presented a high incidence of abortion and stillbirth. There were biochemical and histopathological alterations in both experimental groups, which were more prominent in the does in the Sm 0.04% group. Litters from does treated with Sm 0.03% showed mineralization of soft tissue and an increase in phosphorus and calcium levels. These findings indicate that the vitamin D3-glycoside passes through the placental barrier to the fetus.
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PMID:Evaluation in rabbits of the fetal effects of maternal ingestion of Solanum malacoxylon. 1049 18

A pregnant woman of 14 weeks' gestation was sonographically examined due to large-for-dates uterine size. The ultrasound examination showed poor ossification of all bony structures. All limbs were shortened with no evidence of fractures. The echodensity approximated that of the surrounding organs. No acoustic shadowing was observed. Based on these sonographic findings, skeletal dysplasia and short-limb dwarfism were diagnosed, the most likely condition being congenital hypophosphatasia. Early cordocentesis was successfully performed at 15 weeks' gestation to determine fetal alkaline phosphatase concentration. This was undetectable. The prenatal diagnosis of congenital hypophosphatasia was made. After counselling, the woman decided to opt for termination of pregnancy which was performed vaginally. Post-abortion findings confirmed the prenatal diagnosis. To our knowledge, this is the earliest sonographic diagnosis of this condition reported.
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PMID:Early prenatal sonographic diagnosis of congenital hypophosphatasia. 1084 83


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