scholarly journals THE REGULATION OF CALCIUM-PHOSPHORUS METABOLISM IN THE BODY OF CHILDREN LIVING IN THE CONDITIONS OF THE CONSEQUENCES OF THE CHERNOBYL ACCIDENT

2019 ◽  
Author(s):  
Yuri Bandazheuski ◽  
◽  
Nataliia Dubovaya ◽  
Keyword(s):  
Chernobyl Accident ◽  
The Body ◽  
Phosphorus Metabolism ◽  
Calcium Phosphorus

scholarly journals The History of the Discovery of Parathyroid Glands, and Their Role in the Body

2019 ◽  
Vol 74 (1) ◽  
pp. 35-43
Author(s):  
Natalia G. Mokrysheva ◽  
Julia A. Krupinova
Keyword(s):  
Modern Medicine ◽  
The Body ◽  
Parathyroid Glands ◽  
Main Role ◽  
Phosphorus Metabolism ◽  
Pathological Conditions ◽  
Long Time ◽  
Calcium Phosphorus ◽  
History Of

Currently, the parathyroid glands (PG) are admited as vital organs in humans. At the same time, the way to this acknowledgment was long and difficult, and the establishment of a link between the pathological conditions of the PG and their complications passed through many mistakes and errors. Understanding the regulation of calcium-phosphorus metabolism in the body and recognition of the main role of parathyroid hormone (PTH) in it was slow, throughout the XIX − early XX centuries. Despite the increasing number of observations confirming the development of complications because of hyperfunction of the PG or development of tetany due to their removal, the main link of this relationship remained unidentified for a long time. In view of the unique anatomical features of the PG, they were the last of the endocrine glands found, which the main obstacle was in the rapid study of their functional characteristics. Today, the structure and functions of the PG are described in detail, the manifestations of their various pathological conditions are well studied, and the capabilities of modern medicine allow timely diagnosis and treatment of diseases. The review describes the history of the discovery of the PG, highlights the main stages in the study of their role in calcium-phosphorus metabolism in particular and in the body as a whole, and discusses the prospects for further development in this direction. We analyzed the work devoted to the evolution in the notions of anatomical, physiological, pathological features of the PG.

scholarly journals DYNAMICS OF CHANGES IN THE SERUM MINERAL METABOLISM OF YOUNG PEOPLE WITH GENERALIZED PERIODONTITIS ON THE BACKGROUND OF PRIMARY HYPOTHYROIDISM

2021 ◽  
Vol 21 (1) ◽  
pp. 81-84
Author(s):  
O.M. Repetska ◽  
M.M. Rozhko ◽  
T.M. Dmytryshyn ◽  
A.B. Kostyshyn
Keyword(s):  
Young People ◽  
Thyroid Hormones ◽  
Bone Metabolism ◽  
Bone Tissue ◽  
Primary Hypothyroidism ◽  
The Body ◽  
Phosphorus Metabolism ◽  
Mineral Density ◽  
Periodontal Tissues ◽  
Calcium Phosphorus

At present, there is no definitive opinion on the effect of thyroid hormones on bone metabolism, as the dualism of their effects has been proven. Various studies show mixed data on metabolic changes in periodontal tissues on the background of thyroid dysfunction. Bone tissue plays a key role in the complex system of mechanisms of regulation of calcium and phosphorus homeostasis in the body. The processes of modeling and remodeling of bone and its mineralization are closely related to calcium metabolism. The biochemical manifestation of osteoporotic processes in the cell bone in generalized periodontitis is a violation of calcium-phosphorus homeostasis on the background of altered markers of bone metabolism. According to the literature, it is known that the main indicator of calcium-phosphorus metabolism is the content of calcium in the serum. However, for the metabolic characteristics of the inflammatory-dystrophic process in the cell bone, it is necessary to study the level of inorganic phosphorus and calculate the molar ratio of calcium / phosphorus. The calcium / phosphorus ratio in the blood is important for the study of calcium deposits in bone tissue. Maintenance of normal bone structure depends on the exchange of phosphates between blood and bone tissue. Magnesium along with calcium is needed to achieve optimal bone mineral density. Magnesium helps maintain normal levels of calcium in bone tissue, its constant renewal in bone, prevents calcium loss. With limited intake of magnesium, the formation of calcium phosphate is inhibited. In order to establish indicators that would reflect the peculiarities of metabolic disorders in the organic matrix of the cell process, which is the main component of the periodontium, we conducted biochemical studies, which included the study of calcium-phosphorus metabolism and serum magnesium in patients with primary hypothyroidism and persons without endocrine pathology. According to the results of studies, in young people with generalized periodontitis on the background of reduced thyroid function, there were violations of calcium-phosphorus metabolism in the serum, which consisted of hypocalcemia and decreased calcium-phosphorus ratio. This may indicate abnormalities in calcium intake and absorption in patients with hypothyroidism. We attribute this fact to the fact that for the normal absorption and metabolism of calcium, thyroid hormones are needed, the production of which is reduced in this endocrine pathology. Data on the negative changes of calcium-phosphorus homeostasis, and especially the violation of calcium absorption by patients with generalized periodontitis in young people with primary hypothyroidism, should be considered when developing schemes for the treatment and prevention of periodontal disease in this category of patients.

Abstract #1017 Parathyroid Function in Hyperthyroidism in Relation to Calcium-Phosphorus Metabolism

2018 ◽  
Vol 24 ◽  
pp. 226-227
Author(s):  
Ayotunde Ale ◽  
Olatunbosum Olawale ◽  
Onyido Okwuchi ◽  
Sunday Ogundele ◽  
Anthonia Ogbera
Keyword(s):  
Phosphorus Metabolism ◽  
Parathyroid Function ◽  
Calcium Phosphorus

Observations on the mineral metabolism of pullets. II

1936 ◽  
Vol 26 (1) ◽  
pp. 85-100 ◽  
Author(s):  
R. H. Common
Keyword(s):  
Calcium Carbonate ◽  
Egg Production ◽  
Mineral Metabolism ◽  
Ammonium Phosphate ◽  
Ammonia Nitrogen ◽  
Egg Laying ◽  
Phosphorus Metabolism ◽  
Phosphorus Excretion ◽  
Calcium Phosphorus ◽  
Digestible Protein

1. Where heavy phosphorus excretion accompanies egg laying in the pullet the excretion of ammonia nitrogen is simultaneously increased. It is probable that this indicates an excretion of excess phosphate in the urine as ammonium phosphate.2. It is shown that heavy phosphorus excretion does not accompany egg laying provided the calcium carbonate intake is sufficiently high.3. The origin of the excess of phosphorus excretion is discussed in relation to calcium-phosphorus metabolism.4. Pullets on a ration containing 5 per cent, calcium carbonate laid eggs containing a higher percentage of P2O5 than pullets receiving a similar ration but from which the calcium carbonate supplement was omitted.5. Some evidence is put forward in support of the view that current standards pitch the requirements of digestible protein for egg production at too high a level.

scholarly journals Composition of the human foetus

1972 ◽  
Vol 27 (2) ◽  
pp. 305-312 ◽  
Author(s):  
Sharad V. Apte ◽  
Leela Iyengar
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Gestational Age ◽  
Maternal Nutrition ◽  
The Body ◽  
Human Foetus ◽  
Free Weight ◽  
Body Weights ◽  
Calcium Phosphorus ◽  
Ca:P Ratio

1. The body composition was determined of forty-one fetuses of different gestational ages born to mothers belonging to a low socio-economic group of the population.2. With increasing gestational age the water content fell from 88% at 28 weeks to 76% at term; the fat content increased from 2.1% to 11.2% and the protein content increased from 6.9 to 9.3%.3. The changes in body composition were more closely related to body-weight than to gestational age.4. The calcium, Phosphorus and magnesium contents of the body per unit fat-free weight progressively increased with gestational age, and at term the values appeared to be considerably lower than those reported in the literature. The Ca:P ratio was constant at different body-weights.5. The body iron content per unit of fat-free weight increased marginally with increasing gestational age. The value was almost 30% lower than the values reported from elsewhere.6. It is suggested that chemical composition and nutrient stores of the developing foetus can be considerably influenced by the state of maternal nutrition.

scholarly journals Using tuna fish bone waste as mineral sources in feed formulation of tilapia (Oreochromis niloticus)

2021 ◽  
Vol 890 (1) ◽  
pp. 012026
Author(s):  
A Syazili ◽  
K Ahmad ◽  
I Umakaapa
Keyword(s):  
Fish Bone ◽  
The Body ◽  
Fish Growth ◽  
Fish Feed ◽  
Fish Diet ◽  
Tuna Fish ◽  
Feed Formulation ◽  
Bone Powder ◽  
Bone Fraction ◽  
Calcium Phosphorus

Abstract Fish bone is a solid waste that usually found in traditional fish markets of Ternate. The bone fraction contains high minerals such as calcium, phosphorus, and collagen proteins which are important for fish growth. Tuna fish bone waste was processed into dry fish feed and mixed into feed formulation of Tilapia. Four different dose of tuna fish bone powder were applied namely 0%, 1%, 3%, and 5% as mentioned treatment A, B, C, and D. Fish diet were given to Tilapia juvenile for 42 days. Results show that the body weight and specific growth rate are highest in fish which given 3% dose of tuna fish bone than other treatments. It reaches 38.66 g and 9.617% BW/day. The lowest FCR is 1.34 in treatment C and the survival rate is not significantly different among treatments (p>0.05).

An Unusual Association of Cerebral Meningioma, Parathyroid Adenoma and Thyroid Papillary Carcinoma

2006 ◽  
Vol 92 (2) ◽  
pp. 178-180
Author(s):  
Chiara Caliumi ◽  
Dario Cotesta ◽  
Luigi Petramala ◽  
Monica Iorio ◽  
Maurizio Salvati ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Parathyroid Adenoma ◽  
Papillary Carcinoma ◽  
High Plasma ◽  
Ionized Calcium ◽  
Phosphorus Metabolism ◽  
Papillary Thyroid ◽  
Calcium Phosphorus ◽  
Mri Scans

The case of a 50-year-old woman with cerebral meningioma and concomitant parathyroid adenoma and papillary thyroid carcinoma is presented. She complained of neurological symptoms characterized by right hemiparesis and dysarthria. Cerebral CT and MRI scans revealed a left voluminous frontal parasagittal lesion with the characteristics of a meningioma. Routine laboratory analysis revealed altered values of calcium-phosphorus metabolism. Intravenous infusion of saline solution at 0.9% of NaCI resulted in a reduction of serum ionized calcium. A left craniotomy was performed and a fibroblastic meningioma of 5 cm in diameter was removed. Even though the patient's clinical condition was good, a calcium-phosphorus metabolism test confirmed high plasma levels of ionized calcium and parathyroid hormone. Thyroid and parathyroid ultrasonography revealed multinodular goiter and a parathyroid lesion confirmed by 99mTc-TCO4/99mTc-MIBI scintigraphy. A left superior parathyroidectomy and total thyroidectomy were performed. Histological examination revealed a parathyroid adenoma and a small papillary carcinoma of 0.4 cm in the right thyroid lobe. As far as we know, this patient is the third case of meningioma associated with parathyroid adenoma and papillary thyroid carcinoma described in the literature.

EFFECT OF ANTITHYROID TREATMENT ON CALCIUM-PHOSPHORUS METABOLISM IN HYPERTHYROIDISM I: CHEMICAL QUANTITIES IN SERUM AND URINE

1978 ◽  
Vol 87 (4) ◽  
pp. 743-750 ◽  
Author(s):  
Leif Mosekilde ◽  
Merete Sanvig Christensen ◽  
Flemming Melsen ◽  
Niels Schwartz Sørensen
Keyword(s):  
Medical Treatment ◽  
Serum Calcium ◽  
Serum Alkaline Phosphatase ◽  
Elevated Serum ◽  
Total Serum ◽  
Albumin Concentration ◽  
Phosphorus Metabolism ◽  
Total Serum Calcium ◽  
Antithyroid Treatment ◽  
Calcium Phosphorus

ABSTRACT The effect of antithyroid treatment on the disturbed calcium-phosphorus metabolism in hyperthyroidism was studied in 16 patients. Elevated serum concentrations and urinary excretions of calcium and phosphorus were almost normalized 4 weeks after the start of medical treatment. Serum immunoreactive parathyroid hormone was decreased in the hyperthyroid state and became normal after medical treatment. Serum alkaline phosphatase levels were elevated throughout the study with an increase to a maximum peak after 8 weeks of antithyroid treatment. Urinary hydroxyproline excretion was initially markedly increased and fell rapidly during therapy. The observed changes suggest decreased bone resorption and increased bone formation with deposition of bone mineral after antithyroid treatment. Alterations in the serum albumin concentration during the investigation period influenced the total serum calcium concentration. Using albumin adjusted serum calcium values no hypocalcaemia was found during medical treatment or after a subsequent subtotal thyroidectomy.

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