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)

An enzyme histochemical study of experimental herpes simplex encephalitis of the mouse has revealed a decrease in the number of capillaries displaying alkaline phosphatase activity. Glial cells showed increased Inosine 5 diphosphatase and ATPase activity. These enzyme histochemical changes were distributed throughout the nervous parenchyma while the lesions, seen by light microscopy, are localized to well defined areas. Mice inoculated with a pure culture of irradiated HSV failed to show the above mentioned modifications.
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PMID:Vascular and neuroglial changes in experimental herpes simplex encephalitis enzyme histochemical study. 17 Jul 79

The activity of succinate dehydrogenase, acid and alkaline phosphatase was studied histochemically in immunocompetent organs of Macacus rhesus monkeys orally infected with viruses of the tick-borne encephalitis complex with different biological properties. A gradual increase in the activity of acid phosphatase and succinate dehydrogenase was observed by the 10th--15th day of the experiment followed by its decline to normal by 90 days. The content of alkaline phosphatase in lympoid organs diminished markedly in the first day of the study and then increased by 15--30 days after antigenic stimulation.
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PMID:[Histochemical study of the activity of several enzymes in the process of immunogenesis in monkeys orally infected with viruses of the tick-borne encephalitis complex]. 82 23

In situ hybridisation was performed with a biotinylated DNA probe for herpes simplex virus (HSV) using high temperature denaturation on formalin fixed, paraffin wax sections of lung, brain, ganglion and keratinising and non-keratinising squamous epithelia. Eosinophilic viral nuclear inclusions or characteristically moulded multiple nuclei with altered chromatin, which were present in two cases of HSV encephalitis and one case of viral pneumonitis, all showed complete hybridisation visualised by an alkaline phosphatase/nitroblue tetrazolium detector system. HSV encephalitis and trigeminal ganglionitis, which were confirmed serologically or clinicopathologically but lacked nuclear changes, also gave positive dense nuclear signal in neurons, glias and satellite cells. No staining was present in the ganglion cells in trigeminal zoster, the glia in progressive multifocal leucoencephalopathy, or in a variety of cells in a lung coinfected with cytomegalovirus. In 10 herpetic blisters of squamous epithelia, infected cells hybridised strongly, while morphologically similar herpes zoster lesions remained negative. In neural tissues non-hybridisation staining was most obtrusive in corpora amylacea and seemed to reflect nonspecific probe adherence. In squamous epithelium, major non-hybridisation staining was caused by probe and antibody possibly adhering to intracellular keratin. The HSV probe permits specific detection of virus in the absence of characteristic nuclear changes and allows varicella zoster virus to be differentiated from HSV, provided that the aforementioned problems with non-hybridisation staining are borne in mind.
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PMID:In situ hybridisation in herpetic lesions using a biotinylated DNA probe. 216 33

A method is described for in situ hybridization detection and typing of herpes simplex virus (HSV) using alkaline phosphatase-labeled synthetic oligonucleotide probes in paraffin tissue sections. Sections mounted on slides are prehybridized and denatured before the probe mixture is added. Hybridization proceeds for 1 h at 60 degrees C. Detection of the alkaline phosphatase label is performed using a nitro blue tetrazolium and 5-bromo-4-chloro-3-indolyl phosphate substrate. Specific hybridization with HSV type 1 DNA was found in sections of herpetic esophagitis and encephalitis. There was no discernible background staining. Hybridization with an oligonucleotide probe specific for HSV type 2 was negative. No hybridization occurred to sections of cytomegalovirus- or adenovirus-infected tissue. The development of this technique expands the utility of synthetic oligonucleotide probes to include hybridization reactions in routinely processed and paraffin-embedded tissue. The use of directly labeled oligonucleotide probes for tissue in situ hybridization overcomes problems of probe contamination with vector plasmid DNA, nonspecific avidin binding to tissue, and the danger and inconvenience of working with radioactive materials.
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PMID:Oligonucleotide probe for herpes virus: use in paraffin sections. 223 90

An ELISA for immunodiagnosis of human gnathostomiasis using a crude water extract of third-stage larvae of G. spinigerum as antigen, and alkaline phosphatase labelled goat antihuman IgG in the indicator system was developed and evaluated. At the titre of 1:400 and above positive results were observed in 100% of 4 parasitological confirmed and 10 eosinophilic meningo-encephalitis (EME) typical of gnathostomiasis cases, 56% of 160 cutaneous migratory swelling cases, 33% of 24 cases with EME typical of A. cantonensis infections, 23% of 92 cases with other parasitic infections and 1.5% of blood donors. The overall sensitivity was 59% and specificity 84%. The predictive value was 77%. The results indicated that ELISA is potentially useful for immunodiagnosis of gnathostomiasis but improvement of sensitivity and specificity is needed.
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PMID:ELISA for immunodiagnosis of human gnathostomiasis. 407 Dec

Reference intervals for prothrombin time (PT) and activated partial thromboplastin time (APPT) of undiluted and serial dilutions of citrated platelet-poor plasma were determined for 30 healthy dogs. The PT and APTT were similarly determined for 32 dogs with naturally occurring hepatic disease. Hepatic disease was confirmed by histopathologic examination of hepatic biopsy materials and comprised degeneration (13 dogs), inflammation (11 dogs), cirrhosis (4 dogs), and neoplasia (4 dogs). Coagulation test values were compared with serum alanine aminotransferase, alkaline phosphatase, and gamma-glutamyl transpeptidase activities and Bromsulphalein retention for sensitivity in detecting hepatic disease in the dog. Coagulation test results were at variance with reference values in 66% of the 32 dogs with hepatic disease; serum alanine aminotransferase, alkaline phosphatase, and gamma-glutamyl transpeptidase were increased in 59%, 72%, and 75%, respectively and Bromsulphalein retention was increased in 22% of the 32 dogs. Thus, the PT and APTT were sensitive indicators of hepatic disease. However, the PT and APTT lacked specificity for any given hepatic disease. The sensitivity of the coagulation tests for detecting hepatic disease was enhanced by using dilutions of citrated platelet-poor plasma. Only 15% of dogs with hepatic disease showed variances from reference values in the coagulation tests done with undiluted plasma, but 66% showed variances in the tests with dilutions of plasma. Coagulation tests were also done in 13 dogs with normal hepatic function amd morphology, but with various extrahepatic diseases: chronic renal disease (5 dogs), dirofilariasis (4 dogs), encephalitis (1 dog), cutaneous disease (2 dogs), and femoral fracture (1 dog). Twelve of the 13 dogs had coagulation test values within the reference intervals.
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PMID:Alterations of prothrombin time and activated partial thromboplastin time in dogs with hepatic disease. 734 May 74

Goats infected with caprine arthritis-encephalitis virus (CAEV) show chronic arthritis and cachexia, which are progressive in nature. The immunopathogenic mechanisms responsible for these progressive clinical symptoms have not been fully elucidated. Various haematological and immunological parameters were evaluated in experimentally-infected goats showing typical signs of CAEV-induced disease. Infected goats showed recurrent lymphocytosis that may be due to constant presentation of antigen by infected cells of a monocyte/macrophage lineage. The serum alkaline phosphatase and gamma-glutamyl transferase concentrations were elevated in infected goats, a characteristic of hepatic and bone disorders. All other serum chemistry parameters were similar between infected and control goats. Importantly, the serum tumour necrosis factor-alpha (TNF-alpha) levels were higher in infected goats. The cachexia seen in infected goats may be at least partly due to altered metabolism as a result of prolonged elevation of serum TNF-alpha levels. Depressed natural killer cell activity was observed in infected goats and may contribute towards the establishment of a persistent infection with CAEV.
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PMID:Pathogenic mechanisms of caprine arthritis-encephalitis virus. 770 86

An intrathecal synthesis of IgA has been reported in various neurological disorders. However, the frequency of its occurrence and the electrophoretic characteristics of the locally produced IgA remained a matter of controversy. We developed a sensitive immunoaffinity-mediated capillary blot technique for the detection of polyclonal and oligoclonal IgA in the CSF of 115 patients with various neurological disorders. Paired CSF and serum samples containing 50 ng IgA after appropriate dilutions were submitted to isoelectric focusing in agarose gels; IgA was then blotted onto a polyvinylidene difluoride sheet coated by an anti-IgA antiserum or by infectious antigens. The immunoblots were revealed by an alkaline phosphatase-conjugated anti-IgA antiserum. Only five samples displayed CSF-restricted oligoclonal IgA bands, including two out of 33 from MS patients. In herpetic encephalitis (n = 5) and varicella-zoster meningitis (n = 2), a strong intrathecal production of virus-specific IgA antibodies was detectable. In such cases, faint oligoclonal IgA antibodies were superimposed on a polyclonal background. A weak local production of anti-Borrelia burgdorferi IgA antibodies was present in two out of four cases of neuroborreliosis.
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PMID:Polyclonal and oligoclonal IgA synthesis in the cerebrospinal fluid of neurological patients: an immunoaffinity-mediated capillary blot study. 829 49

The expression of caprine arthritis-encephalitis virus capsid protein was studied in seropositive naturally infected asymptomatic goals (10< seropositive naturally infected encephalitic kids (12) and goats (4), and noninfected control goats (3). Rabbit antiserum to recombinant viral capsid and matrix proteins were used in a biotin-streptavidin-alkaline phosphatase complex immunohistochemical method on sections of formalin- and ethanol-fixed tissue specimens. Macrophages in inflamed areas of the lung (8/12), in the brain (5/16), and in the spinal cord (4/16) from encephalitic animals harbored viral antigens, as revealed by immunohistochemistry and use of a capsid protein-specific antiserum. Altogether 12/16 encephalitic animals tested positive for viral antigen. Viral antigens were found in 5/10 seropositive asymptomatic goals in macrophages located in the lung (3), the udder (1), and the medulla of lymph nodes (4). None of the control animals tested positive for viral antigen. Ethanol fixation showed highest sensitivity, and the lowest antigen concentration that revealed a positive signal discernible from background was twofold higher in ethanol-fixed specimens than in formalin-fixed specimens. The evaluation was performed on artificial antigen substrates embedded with defined concentrations of recombinant viral capsid protein. Immunohistochemistry is a valuable supplement to the methods presently available for diagnosis in cases suspicious of caprine arthritis-encephalitis.
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PMID:Immunohistochemical identification of caprine arthritis-encephalitis virus in paraffin-embedded specimens from naturally infected goats. 916 73

Cynomolgus macaques exposed to an aerosol containing a virulent strain of eastern equine encephalitis (EEE) virus developed neurological signs indicating encephalitis that corresponded with the onset of fever and an elevated heart rate. Viremia was either transient or undetectable even in animals that succumbed to the illness. The onset of illness was dose dependent, but once a febrile response was observed, macaques were moribund within 36 h. Simultaneously, a prominent leukocytosis was seen; 1 day before being moribund, macaques had a white blood cell count >20,000 cells/ microL. The leukocytes were predominantly granulocytes. Increases in serum levels of blood urea nitrogen, sodium, and alkaline phosphatase were also seen. The rapid onset and severity of neurological signs mirror what has been reported for human cases of disease caused by EEE.
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PMID:Severe encephalitis in cynomolgus macaques exposed to aerosolized Eastern equine encephalitis virus. 1759 59


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