The Transfer of Calcium and Strontium Across Biological Membranes

The Transfer of Calcium and Strontium Across Biological Membranes represents the proceedings of a Conference on The Transfer of Calcium and Strontium Across Biological Membranes, held in Cornell University, Ithaca, New York on May 13-16, 1962.
This book is organized into seven sections encompassing 22 chapters, and deals first with some of the properties of biological membranes, the general aspects of ion transport, and chelation of divalent cations. These subjects are all important to understand the transfer of calcium and strontium across membranes. The subsequent sections are devoted to the physiological and nutritional aspects of intestinal absorption, with a particular emphasis on the influence of vitamin D and other nutritional factors on the absorption of calcium and strontium. A section describes the biological transfer and movement of calcium and strontium across kidney, mammary gland, nerve, and muscle. The last section examines the behavior of chronically ingested radiostrontium in animals. This section also provides an overview of strontium and calcium metabolism principles.

Contenu

List Of Participants
Preface
Introductory Comments
Section I Fundamentals of Ion Transfer Across Membranes
The Biophysical Nature of Biological Membranes
General Aspects of Ion Transport (Abstract)
The Biological Implications of Alkaline Earth Chelation
Discussion I
Summation I
Section II Physiological Aspects of Intestinal Absorption
Techniques for Studying Ion Transfer Across the Alimentary Tract
Quantitative Studies on the Absorption and Excretion of Calcium from Thiry-Vella Intestinal Loops in the Dog
Over-all Aspects of Calcium and Strontium Absorption
The Relationship of Age and the Intestinal Absorption of Calcium
Discussion II
Summation II
Section III Nutritional Considerations of Intestinal Absorption
Interactions of Calcium with Other Nutrients in Intestinal Absorption
Adaptation to Alterations in Calcium Intake
Discussion III
Summation III
Section IV Vitamin D and the Intestinal Absorption of Calcium and Strontium
Turnover and Distribution of Vitamin D and Its Mode of Action
Vitamin D and the Active Transport of Calcium by the Small Intestine
Vitamin D and the Absorption of Calcium and Strontium In Vivo
Theories of Vitamin D Action
Discussion IV
Summation IV
Section V Nutritional Factors (Other Than Vitamin D) Influencing the Intestinal Absorption of Calcium Strontium
Phosphopeptides: Chemical Properties and Their Possible Role in the Intestinal Absorption of Metals
Lactose and the Absorption of Calcium and Strontium
Discussion V
Summation V
Section VI Transfer of Calcium and Strontium Across Kidney, Mammary Gland, Nerve, and Muscle
Renal Excretion and Tubular Reabsorption of Calcium and Strontium
Studies on the Movement of Calcium and Strontium Across the Bovine Mammary Gland
Calcium-Vitamin D-Parathyroid Interrelationships in Lactating Rats
Movement of Calcium in Muscle and Nerve
Transport of Calcium through Cell Membranes as Mediated by Certain Hormones
Discussion VI
Summation VI
Section VII Considerations of Strontium Metabolism
Factors and Conditions Modifying the Absorption and Retention of Chronically Ingested Radiostrontium
Some Over-all Aspects of Strontium-Calcium Discrimination
Discussion VII
Summation VII
Subject Index