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Monday, May 11, 2020 | History

5 edition of Role of Bone in Acid Base Regulation (Mineral and Electrolyte Metabolism, Vol20, Nos. 1-2) found in the catalog.

Role of Bone in Acid Base Regulation (Mineral and Electrolyte Metabolism, Vol20, Nos. 1-2)

Jacob Green

Role of Bone in Acid Base Regulation (Mineral and Electrolyte Metabolism, Vol20, Nos. 1-2)

by Jacob Green

  • 180 Want to read
  • 32 Currently reading

Published by S. Karger AG (Switzerland) .
Written in English

    Subjects:
  • Anatomy,
  • Diseases & disorders,
  • Metabolism,
  • Science/Mathematics

  • The Physical Object
    FormatPaperback
    Number of Pages96
    ID Numbers
    Open LibraryOL12930396M
    ISBN 103805559631
    ISBN 109783805559638
    OCLC/WorldCa35537926

    Acid-base regulation through the body's buffer systems. Our body is provided with an efficient buffer system and can thus regulate the acid-base balance. Buffers are protective systems to avoid the pH values in body fluids and cells getting out of balance, primarily by stabilising the pH of the blood.   The skeleton contains a massive reserve of base, which is ultimately available to buffer systemic acid if the kidneys and lungs are unable to excrete sufficient H + and CO 2 to maintain acid-base balance within narrow limits. This brief, selective review summarizes the key functional responses of bone cells to extracellular by:

    Acid–base homeostasis is the homeostatic regulation of the pH of the body's extracellular fluid (ECF). The proper balance between the acids and bases (i.e. the pH) in the ECF is crucial for the normal physiology of the body, and cellular metabolism. The pH of the intracellular fluid and the extracellular fluid need to be maintained at a constant level.. Many extracellular proteins such as. Human Anatomy and Physiology is designed for the two-semester anatomy and physiology course taken by life science and allied health students. The textbook follows the scope and sequence of most Human Anatomy and Physiology courses, and its coverage and organization were informed by hundreds of instructors who teach the course.

    Acid–base balance is one of the homeostatic mechanisms required to maintain health. It refers to the balance between acids and bases, it is also referred to as body pH. pH is the measurement of electrical resistance between negative and positive ions, or electrolytes in the body. Like electrolyte regulation, it is essential that the pH of the body be tightly controlled in order for cellular. Its principal function is to maintain your body’s acid-base balance by being part of buffer systems. This role will be discussed in a different section. Bicarbonate ions result from a chemical reaction that starts with carbon dioxide (CO 2) and water, two molecules that .


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Role of Bone in Acid Base Regulation (Mineral and Electrolyte Metabolism, Vol20, Nos. 1-2) by Jacob Green Download PDF EPUB FB2

Role of Bone in Acid-Base Regulation (Mineral and Electrolyte Metabolism, Vol20, Nos. ): Medicine & Health Science Books @ bone performs this buffering process in the defense against major systemic acid-bone perturbations, it is the very same process of buffering which will ultimately lead to dissolution of the bone mineral.

This paper reviews the current information on the mecha-nisms by which bone contributes to systemic pH regulation. Barzel, US () The skeleton as an ion-exchange system–implications for the role of acid-base imbalance in the genesis of osteoporosis.

Journal of Bone and Mineral Resea – Barzel, US & Jowsey, J () The effects of chronic acid and alkali administration on bone turnover in adult by: Upton, P.K. and L/Estrange, J.L. Effects of chronic hydrochloric and lactic acid administrations on food intake, blood acid-base balance and bone composition of Cited by: 1.

Kidney Int. Jan;39(1) Role of bone in regulation of systemic acid-base balance. Green J, Kleeman CR. PMID: [PubMed - indexed for MEDLINE]Cited by: Acid–base regulation of bone metabolism Timothy R. Arnett Department of Anatomy and Developmental Biology, University College London, London, UK Abstract.

It has been known for almost a century that systemic acidosis causes depletion of the skeleton—an effect assumed to result from physicochemical dissolution of bone mineral.

However. [33] J. Green, C.R. Kleeman, Role of bone in regulation of systemic acid – base balance, Kidney Int. 39 () 9 – [34] T.R.

Arnett, D.W. Dempster, Effect of pH on bone resorption by rat Author: Tim Arnett. Bone also plays an important buffering role, especially of acid loads.

A buffer is made up of a weak acid and its conjugate base. The conjugate base can accept H + and the weak acid can relinquish it, thereby minimizing changes in free H + concentration.

Acid–base imbalances that overcome this system are compensated in the short term by changing the rate of ventilation. Kidneys and Acid–Base Balance The kidneys have two very important roles in maintaining the acid–base balance. The renal regulation of the body’s acid-base balance addresses the metabolic component of the buffering system.

Whereas the respiratory system (together with breathing centers in the brain) controls the blood levels of carbonic acid by controlling the exhalation of CO 2, the renal system controls the blood levels of bicarbonate. In concert with the acid-base literature, protein intake is considered to be a net acid-producing substance and thus a net negative risk factor for bone dissolution.

However, substantial literature supports the beneficial effects on skeletal metabolism when higher protein levels are consumed in concert with adequate calcium, potassium, and other minerals, regardless of the source of protein ( Cited by:   The skeleton as an ion exchange system: implications for the role of acid-base imbalance in the genesis of osteoporosis.

J Bone Miner Res. ;–6. PubMed Google ScholarCited by: 3. A low urine pH itself cannot directly account for excretion of a significant amount of acid: for example, at the limiting urine pH of about[H +] is a negligible mmol/ is several orders of magnitude lower than H + accounted for by titratable acidity and ammonium excretion.

(ie mmol/l is insignificant in a net renal acid excretion of 70 mmols or more per day). Role of bone in regulation of systemic acid-base balance By Jacob Green and Charles R. Kleeman Download PDF (2 MB)Cited by: Part of the Nutrition and Health book series (NH) Abstract.

On a Role of bone in regulation of systemic acid-base balance. Kidney Int ; – PubMed CrossRef Google Scholar. The role of bone in acid base metabolism.

In: Barzel US, ed. Osteoporosis. Grune & Cited by: 3. The bone-sparing effect of estrogen is mainly related to its ability to block bone resorption, although stimulation of bone formation is likely to play a contributory role.

Estrogen-dependent inhibition of bone resorption is, in turn, owing to both decreased osteoclastogenesis and diminished resorptive activity of mature osteoclasts.

Role of Bone Buffering The carbonate and phosphate salts in bone act as a long term supply of buffer especially during prolonged metabolic acidosis. The important role of bone buffers is often omitted from discussions of acid-base physiology 4.

Bone consists of. Respiratory Regulation of Acid-Base Balance. The respiratory system contributes to the balance of acids and bases in the body by regulating the blood levels of carbonic acid (Figure ). CO 2 in the blood readily reacts with water to form carbonic acid, and the levels of CO 2 and carbonic acid in the blood are in equilibrium.

The role of the kidneys in the acid-base balance is to excrete net acid (RNAE) at an amount equal to daily NEAP. In so doing, the kidneys generate “new HCO 3 − ” to replace the HCO 3 − lost in the titration of net endogenous by: Basic and Applied Bone Biology.

Book • Chapter 3 - Local Regulation of Bone Cell Function. acid-base balance, and salt intake. Sodium is the largest predictor of urinary calcium excretion.

Because diets are complex and have long latency effects on bone, it is not easy to study the role of individual constituents on bone health. A doctor evaluates a person's acid-base balance by measuring the pH and levels of carbon dioxide (an acid) and bicarbonate (a base) in the blood.

Blood acidity increases when the Level of acidic compounds in the body rises (through increased intake or production, or decreased elimination).The body’s acid– base balance is tightly regulated to keep the arterial blood pH between and Buffer solutions keep the pH constant in a wide variety of chemical actions.

A buffer solution is a mixture of a weak acid and its conjugate base, or a weak base and its conjugate acid. The three above-mentioned studies, two conducted in patients with chronic renal insufficiency (22, 24) and one in normal subjects rendered severely acidotic through the administration of NH 4 Cl, are the basis of the hypothesis that bone mineral plays an important part in whole-body acid–base balance.

This role would rely on the mobilisation of alkaline ions from the bone, thereby offsetting the excess of by: