Effects of low phosphorus supply on the availability of calcium and phosphorus, and musculoskeletal development of growing dogs of two different breeds

2018 ◽  
Vol 102 (3) ◽  
pp. 789-798 ◽  
Author(s):  
B. Kiefer-Hecker ◽  
E. Kienzle ◽  
B. Dobenecker
Keyword(s):  
Musculoskeletal Development ◽  
Low Phosphorus ◽  
Calcium And Phosphorus

Deposition of Fluoride, Calcium and Phosphorus in Experimental Low-Phosphorus Rickets

1959 ◽  
Vol 67 (1) ◽  
pp. 59-68 ◽  
Author(s):  
I. Zipkin ◽  
R. C. Likins ◽  
F. J. McClure
Keyword(s):  
Low Phosphorus ◽  
Calcium And Phosphorus

INFLUENCE OF CALCIUM AND PHOSPHORUS ON GROWTH AND SKELETAL DEVELOPMENT OF GROWING SWINE

1975 ◽  
Vol 55 (1) ◽  
pp. 147-164 ◽  
Author(s):  
C. E. DOIGE ◽  
J. H. L. MILLS ◽  
B. D. OWEN
Keyword(s):  
Skeletal Development ◽  
National Research Council ◽  
National Academy Of Sciences ◽  
Bone Ash ◽  
High Calcium ◽  
Low Phosphorus ◽  
Calcium And Phosphorus ◽  
Low Levels ◽  
Academy Of Sciences ◽  
Phosphorus Levels

A factorial design with three levels of calcium, three levels of phosphorus, two breeds and both sexes (72 pigs) was employed to study calcium and phosphorus deficiencies and imbalances in swine fed from 22 kg to 90 kg. Dietary levels of both minerals were 50, 100 and 150% of National Academy of Sciences–National Research Council (NAS–NRC) recommendations (1968). Data relating to performance and skeletal development were evaluated. Extreme Ca:P ratios in the diet impaired both performance and skeletal development. All changes were minimal if low levels of either element were accompanied by a Ca:P ratio near 1.25:1. Low calcium–high phosphorus rations resulted in parathyroid enlargement, reduced bone mass, increased numbers of osteoclasts and fibrous replacement of bone. In animals fed high calcium–low phosphorus rations, hypophosphatemia, reduced bone ash and overgrowth of epiphyseal plates were observed. Deviation of the nasal septum occurred but was not related to dietary levels of calcium or phosphorus. Levels of calcium and phosphorus presently recommended by NAS–NRC were consistent with optimal performance and adequate skeletal development.

EFFECTS OF PHOSPHORUS DEFICIENCY ON FOOD INTAKE, GROWTH AND ABSORPTION OF CALCIUM AND PHOSPHORUS BY LAMBS

1984 ◽  
Vol 64 (5) ◽  
pp. 221-222 ◽  
Author(s):  
J. H. TERNOUTH ◽  
C. C. SEVILLA
Keyword(s):  
Food Intake ◽  
Key Words ◽  
Bone Mineralization ◽  
Phosphorus Deficiency ◽  
Low Phosphorus ◽  
Ad Libitum ◽  
Calcium And Phosphorus ◽  
Diet Intake

Lambs offered low phosphorus diets had lower food intakes and liveweight gains than those offered adequate phosphorus. When diet intake was restricted but phosphorus was adequate, bone mineralization was greater but the liveweight gain was similar to the lambs offered inadequate phosphorus diets ad libitum. Key words: Phosphorus deficiency, intake, absorption, endogenous losses

scholarly journals Assessment of calcium-phosphorous metabolism in patients with early infantile caries by laboratory data

2018 ◽  
Vol 35 (2) ◽  
pp. 43-47
Author(s):  
D. V. Kamenskikh
Keyword(s):  
Hematological Parameters ◽  
Laboratory Data ◽  
Urinary Calcium ◽  
The Body ◽  
Type I ◽  
Laboratory Studies ◽  
Low Phosphorus ◽  
Daily Urine ◽  
Calcium And Phosphorus ◽  
Age Range

Aim. To assess the laboratory indices of calcium-phosphorous metabolism in patients with early infantile caries (EIC). Materials and methods. Complex clinicolaboratory examination of 34 children (age range 36 to 72 months), diagnosed early infantile caries, was carried out. Patients’ dental status was stated; a number of laboratory studies to estimate calcium phosphorous metabolism with further mathematical processing of the obtained material was fulfilled. Results. The analyzed laboratory studies showed the absence of pathological regulation of calcium-phosphorous metabolism in the body of the examined patients. The correlation analysis of caries intensity and daily urinary calcium and phosphorus levels in patients of type I revealed weak correlation feedback, r = –0.21, r = –0.25. The analogous analysis in patients of types II and III detected moderate feedback and the similar statistical data, namely, r = –0.26, r = –0.34 and r = –0.27, r = –0.29, respectively. Conclusions. Interaction between the deficit of the excreted calcium and phosphorus in the daily urine and the risk for development of early infantile caries was found in patients with EIC. Laboratory diagnostic studies, so as to administer adequate drug therapy for correction of separate indices of calcium-phosphorous metabolism, are necessary. It should be also noted that among patients with decompensated form of caries course, low calcium indices are more often associated with low phosphorus indices in the urine against the background of hematological parameters, which keep within the standards.

scholarly journals Comparison of vitamin D, calcium and phosphorus values of essential hypertensive, preeclamptic and normotensive pregnant women

2021 ◽  
Vol 3 (1) ◽  
pp. 10-14
Author(s):  
Mehmet Emin Güneş ◽  
Ömür Keskin ◽  
Ayşe Rabia Şenkaya
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
The Other ◽  
Control Group ◽  
Positive Effects ◽  
Significant Difference ◽  
Low Phosphorus ◽  
25 Hydroxy Vitamin D ◽  
Calcium And Phosphorus ◽  
Phosphorus Levels

Abstract Objective: The aim of this study is; to examine the levels of 25 hydroxy vitamin D (25-OH D), calcium (Ca) and phosphorus (P) in preeclamptic, essential hypertensive and normotensive pregnant groups. Material and Method: A total of 120 pregnant women who came to our clinic for delivery between 35 and 40 weeks of gestation between April 2017 and November 2017 were included in the study. The study group consisted of 40 preeclamptic (n = 40) and 40 essential hypertensive (n = 40), and the control group consisted of 40 normotensive pregnant women (n = 40). The demographic, obstetric and laboratory results of the three groups were compared in terms of 25-OH D levels, calcium and phosphorus levels. Results: Maternal age, BMI and proteinuria were significantly lower in the preeclamptic and essential hypertensive group compared to the control group (p <0.05). Week of gestation was observed to be earlier in the preeclamptic group compared to the other two groups (p <0.05). The mean systolic and diastolic blood pressure of the preeclamptic and essential hypertensive groups were found to be statistically significantly higher than the control group (p <0.05). No statistically significant difference was found between the groups in terms of transaminase. It was found that creatinine in the control group was statistically lower than the average creatinine level in the other two groups (p <0.001). The Blood Urea Nitrogen (BUN) average of the control group was statistically significantly lower than the average of the other two groups (p = 0.001). Phosphorus levels were significantly higher in preeclamptic and essential hypertensive pregnant women compared to normotensive pregnant women (p<0.05). However, no statistically significant difference was found between calcium and 25-OH D levels in all three groups. Conclusion: Low phosphorus level is likely to play a role in the etiology of essential hypertension and preeclampsia. The effects of maternal vitamin D and calcium level on the development of preeclampsia are uncertain, but more extensive research is required on potential positive effects.

A short-term study of calcium and phosphorus absorption in sheep fed on diets high and low in calcium and phosphorus

1985 ◽  
Vol 36 (1) ◽  
pp. 91 ◽  
Author(s):  
KM Schneider ◽  
JH Ternouth ◽  
CC Sevilla ◽  
RC Boston
Keyword(s):  
Dry Matter ◽  
Short Term ◽  
Term Study ◽  
Compartmental Modelling ◽  
High Phosphorus ◽  
Phosphorus Absorption ◽  
Short Term Study ◽  
Low Phosphorus ◽  
Modelling Techniques ◽  
Calcium And Phosphorus

Compartmental modelling techniques were used to measure the absorption of calcium and phosphorus in young sheep which had been fed ad libitum for 6 months on one of four diets containing 1.35 or 8.2 g calcium and 0.72 or 4.5 g phosphorus per kg dry matter. In most of the compartmental models, absorption could be represented by a primary and secondary compartment. The percentage of 45Ca absorbed increased as calcium intake decreased so that the amount of calcium absorbed was not greatly affected by changes in the dietary intake or abomasal contents of calcium. Also, there were no differences due to treatment in the amount of calcium absorbed by primary or secondary absorption. The percentage of 32P absorbed did not vary between treatments, although the percentage absorbed by primary absorption was higher in sheep on low phosphorus diets. For secondary absorption, the percentage absorbed was higher in sheep on high phosphorus diets. The amount of phosphorus absorbed by primary absorption was the same for all treatments; however, sheep on low phosphorus diets absorbed very little phosphorus by secondary absorption, whereas sheep on high phosphorus diets absorbed 2.5 times as much phosphorus as those on low phosphorus diets. The amounts of mineral absorbed by primary absorption for phosphorus and calcium, and by secondary absorption for calcium, were not altered by changes in the amount of phosphorus or calcium mixed with the tracer, indicating that primary absorption may be saturable for phosphorus and calcium and secondary absorption for calcium. The large absorption of phosphorus by the secondary compartment was proportional to the amount of phosphorus in the lower small intestine and therefore the phosphorus was probably absorbed by a non-saturable mechanism.

scholarly journals The in vitro metabolism of 25-hydroxycholecalciferol by pig kidney: effect of low dietary levels of calcium and phosphorus

1978 ◽  
Vol 40 (1) ◽  
pp. 159-162 ◽  
Author(s):  
Barbara A. Sommerville ◽  
J. Fox ◽  
A. D. Care ◽  
R. Swaminathan
Keyword(s):  
In Vitro Metabolism ◽  
Pig Kidney ◽  
Low Calcium ◽  
Low Phosphorus ◽  
Calcium And Phosphorus ◽  
Chick Kidney ◽  
25 Hydroxycholecalciferol

1. Homogenates of pig kidney incubated in vitro convert 25-hydroxycholecalciferol to the dihydroxy-metabolites almost as efficiently as homogenates of chick kidney under similar conditions.2. The cortex of the kidney carries out this conversion more efficiently than does the medulla.3. Kidneys from pigs given low calcium or low phosphorus diets produce about 40 % more 1,25-dihydroxy cholecalciferol than those from pigs given diets containing normal levels of Ca and P.

scholarly journals Effect of Phytase Transgenic Corn Supplemented in Feed Diets on the Utilization of Calcium and Phosphorus in Bama Boars

2021 ◽  
Vol 6 (6) ◽  
Author(s):  
Liqin LH ◽  
◽  
Jinghuan W ◽  
Deqian M ◽  
Min Li ◽  
...  
Keyword(s):  
Control Diet ◽  
Latin Square ◽  
Inorganic Phosphorus ◽  
Nutritional Composition ◽  
Apparent Digestibility ◽  
Transgenic Corn ◽  
Dependent Relationship ◽  
Phytate Phosphorus ◽  
Low Phosphorus ◽  
Calcium And Phosphorus

The study aimed to evaluate the nutritional composition and the efficacy of phytase transgenic corn. Ten-month old castrated Bama boars and replicated a 6×6 Latin square design were used to evaluate the effect of phytase on utilization of calcium of phosphorus. Six-dietary treatments included: Phosphorus adequate control diet (PC), PTC0 (low-phosphorus diet), PTC500 (lowphosphorus diet with 500 FTU phytase/kg in PTC), PTC1000 (low-phosphorus diet with 1000 FTU phytase/kg in PTC), PTC5000 (low-phosphorus diet with 5000 FTU phytase/kg in PTC), microbe500 (low-phosphorus diet with 500 FTU phytase/kg from Aspergillus Niger). Contents of the proximate components, minerals, vitamins and amino acid of PTC did not differ from CC. The PTC has lower concentrations of phytate phosphorus than CC, the apparent digestibility of calcium and phosphorus of the PTC0 group is lower (p<0.05). No obvious dose-dependent relationship about the apparent digestibility of calcium and phosphorus showed among PTC500, PTC1000 and PTC5000. Therefore, the nutritional compositions of PTC had substantial equivalence to that of control corn except for phytate phosphorus concentrations, the PTC addition can improve the apparent digestibility of phosphorus and calcium and reduce the excrement of inorganic phosphorus, PTC might be an economically efficient way to decrease environment pollutions.

Vitamin D Deficiency and Intoxication - A concern either way

JMS SKIMS ◽  
2011 ◽  
Vol 14 (2) ◽  
pp. 40-42
Author(s):  
Muzafar Maqsood Wani ◽  
Imtiaz Ahmed Wani
Keyword(s):  
Vitamin D ◽  
Cell Growth ◽  
Bone Turnover ◽  
Secondary Hyperparathyroidism ◽  
Vitamin D Deficiency ◽  
Bone Mineralization ◽  
Normal Blood ◽  
Blood Levels ◽  
Calcium And Phosphorus ◽  
Biologic Function

Major biologic function of activated vitamin D is to maintain normal blood levels of calcium and phosphorus, thus regulating bone mineralization. Research suggests that vitamin D may help in immunomodulation, regulating cell growth and 1,4 differentiation as well as some diverse unspecified functions. Overt vitamin D deficiency leads to hypocalcaemia, secondary hyperparathyroidism and increased bone turnover, which in prolonged and severe cases may cause rickets in children and osteomalacia in elderly.... JMS 2011;14(2):40-42

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