Effect of calcitonin on ca2+-stimulated adenosine triphosphatase activity in a plasma membrane-rich fraction of rabbit dental pulp in vitro

This cytochemical and electron microscopic study on peritoneal macrophages of the guinea pig has raised doubts concerning the validity of lead methods for the demonstration of plasma membrane-bound adenosine triphosphatase activity. The problems encountered are inherent in the use of lead ions as a capture reagent. The nonenzymatically formed precipitates reflect sites of heterogeneous nucleation specific for certain kinds of cells, e.g., resident peritoneal macrophages, eosinophilic granulocytes and, to a lesser degree, exudate monocytes. This type of precipitation is also catalyzed on the surface of nonbiologic matrices such as latex particles. Enzymatic processes may well occur, but they cannot be distinguished from nonenzymatic processes.

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ULTRASTRUCTURAL LOCALIZATION OF Mg++-DEPENDENT DINITROPHENOL-STIMULATED ADENOSINE TRIPHOSPHATASE IN HUMAN BLOOD PLATELETS

Journal of Histochemistry & Cytochemistry ◽

10.1177/15.5.267 ◽

1967 ◽

Vol 15 (5) ◽

pp. 267-272 ◽

Cited By ~ 11

Author(s):

VICTOR G. VETHAMANY ◽

SYDNEY S. LAZARUS

Keyword(s):

Enzyme Activity ◽

Plasma Membrane ◽

Human Blood ◽

Adenosine Triphosphatase ◽

Blood Platelets ◽

Ultrastructural Localization ◽

Human Platelets ◽

Structural Localization ◽

Adenosine Triphosphatase Activity ◽

Human Blood Platelets

Fine structural localization of adenosine triphosphatase activity was studied in human platelets briefly fixed in cold formol calcium and then incubated in lead medium with added dinitrophenol. Under these conditions, the Mg++-dependent dinitrophenol-stimulated adenosine triphosphatase of platelet mitochondria was demonstrated, but neither granules nor plasma membrane showed enzyme activity.

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The in vitro effects of vitamin D on oxidative phosphorylation and adenosine triphosphatase activity by rat liver mitochondria

Biochemical Pharmacology ◽

10.1016/0006-2952(75)90041-6 ◽

1975 ◽

Vol 24 (23) ◽

pp. 2127-2132 ◽

Cited By ~ 4

Author(s):

Prakorn Chudapongse ◽

Sirisiln Lowchareonkul

Keyword(s):

Vitamin D ◽

Oxidative Phosphorylation ◽

Rat Liver ◽

Adenosine Triphosphatase ◽

Liver Mitochondria ◽

Rat Liver Mitochondria ◽

Adenosine Triphosphatase Activity ◽

In Vitro Effects

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Aluminum-Enhanced Proton Release Associated with Plasma Membrane H+-Adenosine Triphosphatase Activity and Excess Cation Uptake in Tea (Camellia sinensis) Plant Roots

Pedosphere ◽

10.1016/s1002-0160(17)60460-0 ◽

2018 ◽

Vol 28 (5) ◽

pp. 804-813 ◽

Cited By ~ 3

Author(s):

Qing WAN ◽

Yuhe MI ◽

Yiyang YANG ◽

Xu Renkou ◽

Xinghui LI

Keyword(s):

Plasma Membrane ◽

Camellia Sinensis ◽

Adenosine Triphosphatase ◽

Plant Roots ◽

Proton Release ◽

Adenosine Triphosphatase Activity ◽

Cation Uptake

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Effect of fluoride on protein and collagen biosynthesis in rabbit dental pulp in vitro

European Journal Of Oral Sciences ◽

10.1111/j.1600-0722.1976.tb00490.x ◽

1976 ◽

Vol 84 (5) ◽

pp. 276-285 ◽

Cited By ~ 1

Author(s):

KRISTEN HELGELAND

Keyword(s):

Dental Pulp ◽

Collagen Biosynthesis ◽

Rabbit Dental Pulp

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Distribution and Properties of Na+, K+-ATPase in Human Post-Mortem Kidney and the Effects of Diuretics

Clinical Science ◽

10.1042/cs0420265 ◽

1972 ◽

Vol 42 (3) ◽

pp. 265-275 ◽

Cited By ~ 7

Author(s):

B. R. Tulloch ◽

K. Gibson ◽

P. Harris

Keyword(s):

Adenosine Triphosphatase ◽

Microsomal Fraction ◽

Enzyme System ◽

Post Mortem ◽

Inhibit Activity ◽

Adenosine Triphosphatase Activity ◽

Diuretic Drugs ◽

High Concentrations ◽

Activity Dependent

1. Adenosine triphosphatase activity dependent on Mg2+ and activated by Na+ and K+ has been found in a microsomal fraction of homogenates of human postmortem kidneys. 2. Various characteristics of the enzyme system are described. 3. Activity is greater in the medulla than in the cortex. 4. Diuretic drugs inhibit activity in vitro only at high concentrations.

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