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PubMedDate not supplied

[The pathogenesis of experimental periodontitis in rabbits].

Periodontitis was simulated in rabbits and rats by suturing a ligature to the gingiva. A follow-up of periodontitis development has revealed the characteristic local (edema, formation of pouches, teeth mobility) and systemic (leukocytosis, moderate hypercalcemia, elevated blood alkaline phosphatase activity, increased blood and gingival lysozyme levels) reactions.

Animals↗
PubMed1986

Correlation between serum alkaline phosphatase activity and blood glucose levels.

Fasting blood glucose levels and serum alkaline phosphatase activity of age-matched Libyan diabetic men (168) and women (168) were determined. The mean levels of blood glucose of men and women were 227 +/- 6 and 237 +/- 5 mg/dl, respectively. The respective values of serum alkaline phosphatase were 179 +/- 5 and 199 +/- 6 IU/l. The mean serum phosphatase activity of women was significantly higher (p less than 0.001) than that of their male counterparts. A statistically significant positive correlation was found between serum alkaline phosphatase and blood glucose levels of these diabetic patients (r = 0.35; p less than 0.001).

Adult↗
PubMed2002

Detection of hantavirus infection in hemolyzed mouse blood using alkaline phosphatase conjugate.

Conventional methods such as ELISA and culture require a long time for the determination of viral infections. Fast and reliable instrumentation suitable for operation under field conditions that allows rapid detection of hantavirus in rodent populations in the wild, would be a substantial improvement over these methods. In response to this challenge, a prototype amperometric immunosensor based on highly dispersed immunoelectrode for rapid, sensitive and quantitative assay of hantavirus in mice blood has been developed. A sandwich scheme of immunoassay is used and the naphthol that is formed as a result of enzymatic hydrolysis of alpha-naphthyl phosphate in the presence of alkaline phosphatase (AP) label is quantified amperometrically. The main complication faced when testing the amperometric immunosensor for application to mouse blood samples under field conditions is the removal of the interference caused by the electroactive components due to the hemolysis of the samples. We studied the possibility of using other enzyme markers such as AP to replace the horseradish peroxidase (HRP) used earlier in testing for antibodies against hantavirus in human blood plasma. Best results were obtained when the reference electrode is covered with a thin Nafion layer. Further improvement of assay performance was achieved by the modification of the sensing element. The amperometric immunoelectrode showed significantly higher sensitivity (more than 10-fold) than the standard spectrophotometric detection ELISA method. It can also be used for rapid analysis in conventional and field conditions in biological, physiological and analytical practices.

Alkaline Phosphatase↗
PubMed1998

[Evaluation of the test strip Reflotron ALP (alkaline phosphatase) for blood samples of dogs and cats].

The test strip Reflotron ALP (alcaline phosphatase) was evaluated for use in canine and feline heparinized blood samples. The within-run and the day-to-day precision of blood and plasma samples was excellent. A haematocrit up to 60% of canine blood and up to 50% of feline blood had no influence on the measurements. Reflotron ALP was compared with ALP on Hitachi 717 (Boehringer Mannheim, Mannheim, Germany). The correlation of both methods was good for canine and feline blood samples. Reflotron ALP was higher than Hitachi ALP in both species. Despite an enormous deviation between Reflotron ALP and the reference method of canine and feline blood samples within the reference range, Reflotron ALP is a suited test for the detection of elevated ALP activity in canine and feline blood samples. Differences of the ALP activity might be caused by ALP isoenzymes. The activity of ALP isoenzymes depends on the method. The buffer systems of Reflotron ALP and Hitachi ALP are different. Significant exceeding of the reference range was reliably detected. In this investigation the study results for heparinized whole blood, heparinized plasma and serum are approximately the same.

Alkaline Phosphatase↗