EFFECTS OF DIETARY CALCIUM AND PHOSPHORUS CONCENTRATIONS AND INTRAMUSCULAR INJECTIONS OF VITAMIN D3 ON GROWTH AND SERUM PARAMETERS OF LAMBS REARED IN A CONTROLLED ENVIRONMENT

1985 ◽  
Vol 65 (1) ◽  
pp. 163-173 ◽  
Author(s):  
D. P. HEANEY ◽  
M. HIDIROGLOU ◽  
J. N. B. SHRESTHA ◽  
S. K. HO
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Growth Rates ◽  
Management Tool ◽  
Dietary Vitamin ◽  
Controlled Environment ◽  
Serum Parameters ◽  
Intramuscular Injections ◽  
Positive Correlations ◽  
Ca:P Ratio

Three hundred and sixty-four artificially reared lambs were weaned at 21 days of age, assigned to four treatments and raised in a controlled environment. The 2 × 2 factorial experiment involved two diets containing 0.53% calcium (Ca) and 0.70% phosphorus (P) or 1.43% Ca and 0.50% P, respectively, with half of the lambs on each diet receiving two intramuscular injections (IMD) of vitamin D3 (250 000 IU at weaning and 500 000 IU at 70 days of age). The diets with the high Ca:P ratio produced higher rates of gain. Those lambs receiving IMD had slower growth rates compared to those receiving only dietary vitamin D. In all treatments, serum Ca levels were within normal ranges while serum P levels were higher than normal. Treatment differences in serum Ca were similar, though less consistent, to those observed for growth, whereas only inconsistent treatment differences occurred for P or alkaline phosphatase activity (AP). Although a few positive correlations were noted among serum parameters per se irrespective of treatment, they were without a general pattern. There were, however, positive correlations between growth rates and both serum AP and serum Ca activities, particularly at later stages of growth. The results indicated that a dietary Ca:P ratio of 2.9 was conducive to satisfactory growth, that high levels of vitamin D via injection were not beneficial and that measuring serum Ca, P and AP as indices of nutritional status is of little use as a practical management tool. Key words: Calcium, phosphorus, alkaline phosphatase, vitamin D, lambs

scholarly journals The vitamin D status of East Indian Punjabi immigrants to Canada

1987 ◽  
Vol 58 (1) ◽  
pp. 23-29 ◽  
Author(s):  
R. S. Gibson ◽  
G. S. Bindra ◽  
P. Nizan ◽  
H. H. Draper
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Dietary Fibre ◽  
Serum Alkaline Phosphatase ◽  
Dietary Vitamin ◽  
East Indian ◽  
Hydroxyvitamin D ◽  
Dietary Records ◽  
25 Hydroxyvitamin D ◽  
Dietary Vitamin D

1. Serum 25-hydroxyvitamin D (25-OHD), calcium and alkaline phosphatase (EC3.1.3.1) levels and vitamin D intakes (from 3 d weighed dietary records) were determined in a cohort of fifty-nine male East Indian Punjabi immigrants (37.7 (SD 10.5) years) and fifty-four females (33.3 (SD 7.4) years).2. Females had somewhat lower mean serum 25-OHD levels (12.3 (SD 5.0) v. 14.2 (SD 5.1) ng/ml,P< 0.05) and serum Ca levels (88 (SD 8) v. 91 (SD 6) mg/l) than males (P< 0.05) whereas serum alkaline phosphatase values (males 167 (SD 63), females 169 (SD 43) IU/l) and dietary vitamin D intakes (males 3.5 (SD 1.8), females 3.3 (SD 2.0) μg/d) were similar.3. 22% Of the females and 12% of the males had serum 25-OHD levels below 9.0 ng/ml but none had serum 25-OHD levels within the range associated with clinically overt disease.4. In the males, serum 25-OHD levels were negatively correlated with dietary fibre intakes (g/d; r–0.29;P< 0.05).5. Multiple-regression analysis indicated that log serum 25-OHD levels were not related to dietary vitamin D intakes. Instead they were associated with sex and dietary fibre intakes (g/MJ) (F3.71;P= 0.03). These two variables explained 8% of the variance.

scholarly journals Maternal Vitamin D and Newborn Telomere Length

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 2012
Author(s):  
Lisa Daneels ◽  
Dries S. Martens ◽  
Soumia Arredouani ◽  
Jaak Billen ◽  
Gudrun Koppen ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cord Blood ◽  
Telomere Length ◽  
First Trimester ◽  
Maternal Serum ◽  
Adverse Outcomes ◽  
Dietary Vitamin ◽  
Maternal Vitamin ◽  
Vitamin D Intake ◽  
Diet Supplements

Nutrition is important during pregnancy for offspring health. Gestational vitamin D intake may prevent several adverse outcomes and might have an influence on offspring telomere length (TL). In this study, we want to assess the association between maternal vitamin D intake during pregnancy and newborn TL, as reflected by cord blood TL. We studied mother–child pairs enrolled in the Maternal Nutrition and Offspring’s Epigenome (MANOE) cohort, Leuven, Belgium. To calculate the dietary vitamin D intake, 108 women were asked to keep track of their diet using the seven-day estimated diet record (EDR) method. TL was assessed in 108 cord blood using a quantitative real-time PCR method. In each trimester of pregnancy, maternal serum 25-hydroxyvitamin D (25-OHD) concentration was measured. We observed a positive association (β = 0.009, p-value = 0.036) between newborn average relative TL and maternal vitamin D intake (diet + supplement) during the first trimester. In contrast, we found no association between average relative TL of the newborn and mean maternal serum 25-OHD concentrations during pregnancy. To conclude, vitamin D intake (diet + supplements), specifically during the first trimester of pregnancy, is an important factor associated with TL at birth.

scholarly journals New insights into vitamin D regulation: is there a role for alkaline phosphatase?

2021 ◽  
Author(s):  
G. Bellastella ◽  
L. Scappaticcio ◽  
M. Longo ◽  
R. Carotenuto ◽  
C. Carbone ◽  
...  
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Liver Function ◽  
Significant Negative Correlation ◽  
Liver Function Tests ◽  
Bone Alkaline Phosphatase ◽  
Gamma Glutamyl Transpeptidase ◽  
Function Tests ◽  
Group 2 ◽  
Group 1

Abstract Purpose The diagnosis of vitamin D deficiency is based on the determination of total plasma 25-hydroxyvitamin D (25-OHD) concentrations, but the regulation of vitamin D 25-hydroxylation is not a major consideration and very little information is available on this activity. To check what factors could interfere with the activity of vitamin D-25-hydroxylase and thus alter the 25-OHD concentrations, we looked for potential correlations between 25-OHD and results of liver function tests in healthy adults. Methods This single-centre study was retrospective and consisted of evaluating the correlations between 25-OHD and the activities of aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP), and bone alkaline phosphatase (BALP) in 349 healthy subjects aged from 18 to 65 years. In particular, in Group 1 (n = 119), we looked for correlations between 25OHD and all liver function tests and in Group 2 (n = 230) the correlation between 25OHD and BALP. Results In Group 1, we found no correlation between 25OHD and AST (r =  − 0.03; p = 0.8), ALT (r =  − 0.02; p = 0.91), GGT (r =  − 0.08; p = 0.68), direct bilirubin (r =  − 0.02; p = 0.89), indirect bilirubin (r =  − 0.24; p = 0.21), and total bilirubin (r =  − 0.24; p = 0.21) but one between 25OHD and ALP (r =  − 0.2; p = 0.007); in Group 2, we found a significant negative correlation between 25-OHD and BALP (r =  − 0.2; p = 0.0008). Conclusions The correlations that we found suggest that ALP and BALP might be involved in the regulation of vitamin D-25-hydroxylase activity, but further studies are mandatory to confirm our assumptions.

scholarly journals Opposite correlation of 25-hydroxy-vitamin D- and 1,25-dihydroxy-vitamin D-metabolites with gestational age, bone- and lipid-biomarkers in pregnant women

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Oleg Tsuprykov ◽  
Saban Elitok ◽  
Claudia Buse ◽  
Chang Chu ◽  
Bernhard Karl Krämer ◽  
...  
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Pregnant Women ◽  
Clinical Chemistry ◽  
Water Soluble ◽  
Target Cells ◽  
Vitamin D Metabolites ◽  
Specific Alkaline Phosphatase ◽  
Bone Specific Alkaline Phosphatase ◽  
Group B

Abstract25-Hydroxyvitamin D (25OHD) and 1,25-dihydroxyvitamin D (1,25(OH)2D) need to be bound to carrier proteins to be transported to their target cells. The majority of either 25OHD or 1,25(OH)2D is bound to vitamin D-binding protein (DBP), a smaller fraction is bound to albumin and only very small amounts of 25OHD or 1,25(OH)2D are free. Albumin-bound 25OHD or 1,25(OH)2D is relatively easily available after dissociation from albumin. Thus, the sum of free and albumin-bound forms is called bioavailable 25OHD and bioavailable 1,25(OH)2D. Total 25OHD and 1,25(OH)2D are defined as the sum of free, albumin-bound and DBP-bound 25OHD and 1,25(OH)2D, respectively. This cross-sectional study in 427 pregnant women compared the correlation of the six vitamin D compounds with biomarkers of bone health, lipid metabolism, kidney function, endocrine parameters, and group B water-soluble vitamins. Among the 25OHD metabolites analysed, total 1,25(OH)2D showed clearly the best correlation with calcium, bone-specific alkaline phosphatase, adiponectin, LDL, HDL, urea, thyroxine, and group B water-soluble vitamins. When comparing the three 25OHD metabolites, both free 25OHD and bioavailable 25OHD showed overall good correlations with calcium, bone-specific alkaline phosphatase, adiponectin, LDL, HDL, urea, thyroxine, triiodothyronine, and group B water-soluble vitamins, The correlations of 1,25(OH)2D and 25OHD metabolites went always in opposite directions. Only PTH correlates always inversely with all six vitamin D compounds. In conclusion, free 25(OH)D and bioavailable 25(OH)D are more precise determinants of the vitamin D status than total 25(OH)D in normal pregnancy, whereas total 1,25(OH)2D is superior to free and bioavailable 1,25(OH)2D. Except for PTH, correlations of 25(OH)D and 1,25(OH)2D metabolites with typical clinical chemistry readouts go in opposite directions.

Fibroblast growth factor 23 and its role in phosphate homeostasis in growing children compared to adults

2020 ◽  
Vol 33 (8) ◽  
pp. 1065-1071
Author(s):  
Marjan Jeddi ◽  
Maryam Heidari ◽  
Neda Hatami ◽  
Gholam Hossein Ranjbar Omrani
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Fibroblast Growth Factor 23 ◽  
Fractional Excretion ◽  
Cross Sectional Study ◽  
Fibroblast Growth ◽  
Sectional Study ◽  
Phosphate Homeostasis ◽  
Cross Sectional ◽  
Fractional Excretion Of Phosphate

AbstractObjectivesPhosphate is essential for skeletal mineralization, which is regulated by parathyroid hormone, calcitriol and fibroblast growth factor 23 (FGF23). Serum phosphate is physiologically higher in younger children, but factors that contribute to this physiological state are poorly understood. This study aimed to evaluate phosphate and its regulators in children compared with adults.Materials and methodsThe participants were children aged 3–11 years and adults older than 20 years of age. Biochemical parameters including calcium, phosphorus, alkaline phosphatase, FGF23, and vitamin D were measured. Fractional excretion of phosphate was calculated, using serum and urine phosphate and creatinine.ResultsThis cross-sectional study was conducted on 45 children (mean age: 9.0 ± 2.1) and 44 adults (mean age: 38.9 ± 11.1). The children had higher serum calcium, phosphate, alkaline phosphatase, and FGF23 (p < 0.001), but fractional excretion of phosphate was greater in adults (14.1 ± 5.7, 11.4 ± 4.4, p = 0.019, 95% confidence interval [CI]: −0.7 to −0.2). Of all individuals, 61.8% had vitamin D deficiency. By multiple regression analysis, entering age, calcium, phosphate, and vitamin D level, the only independent predictor of FGF23 was 1, 25 dihydroxy-vitamin D3 (β: 0.78, p < 0.001, 95% CI: 0.5–1.1, R2: 0.59 for children, and β: 0.59, p < 0.001, 95% CI: 0.5–1.4, R2: 0.45 for adults).ConclusionAs far as we know, there is little information regarding the role of FGF23 in physiologic state. In this cross-sectional study no association was found between FGF23 and urinary phosphate excretion in growing children. Further studies with more detail are essential to evaluate phosphate homeostasis during childhood.

The Interaction of Dietary Vitamin A and Vitamin D Related to Skeletal Development in the Turkey Poult

1985 ◽  
Vol 115 (7) ◽  
pp. 929-935 ◽  
Author(s):  
Alan L. Metz ◽  
Mary M. Walser ◽  
William G. Olson
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Skeletal Development ◽  
Dietary Vitamin ◽  
Turkey Poult

Efavirenz is associated with severe vitamin D deficiency and increased alkaline phosphatase

AIDS ◽  
2010 ◽  
Vol 24 (12) ◽  
pp. 1923-1928 ◽  
Author(s):  
Tanya Welz ◽  
Kate Childs ◽  
Fowzia Ibrahim ◽  
Mary Poulton ◽  
Chris B Taylor ◽  
...  
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Vitamin D Deficiency ◽  
Severe Vitamin

scholarly journals Identification of intestinal cells responsive to calcitriol (1,25-dihydroxycholecalciferol)

1985 ◽  
Vol 225 (1) ◽  
pp. 127-133 ◽  
Author(s):  
M W Smith ◽  
M E Bruns ◽  
E D M Lawson
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Phosphatase Activity ◽  
Alkaline Phosphatase Activity ◽  
Quantitative Description ◽  
Intestinal Cells ◽  
Protein Levels ◽  
High Affinity ◽  
Hormone Injection ◽  
Crypt Cells

The location of intestinal cells taken from the base of the crypt to the tip of the villus responsive to calcitriol (1,25-dihydroxycholecalciferol) and the distribution of [3H]calcitriol within the intestinal epithelium has been determined in vitamin D-deficient rats. The calcitriol responses examined were CaBP (Ca2+-binding protein) levels as measured by immunodiffusion and alkaline phosphatase levels as determined cytochemically. Calcitriol had no effect on villus structure or on enterocyte kinetics. This made it possible to compare levels of CaBP and alkaline phosphatase activity in enterocytes at different ages in rats at known times after hormone injection. Cells from both the crypt and villus synthesized CaBP in response to calcitriol. Alkaline phosphatase activity was not detectable in crypt cells, although a pool of precursor was produced in these cells in response to calcitriol. Enzyme activity was increased in all villus cells in response to calcitriol, but the quantitative description of this effect was very different from that found for calcitriol effects on CaBP synthesis. Calcitriol injected into vitamin D-deficient rats was detected, within 2h, in all cells of the crypt and villus. Most of the binding was to sites having a high affinity for the injected hormone.

scholarly journals Excess Dietary Vitamin A in the Growing Chick: Effect of Fat Source and Vitamin D

1986 ◽  
Vol 65 (1) ◽  
pp. 153-163 ◽  
Author(s):  
J.R. VELTMANN ◽  
L.S. JENSEN ◽  
G.N. ROWLAND
Keyword(s):  
Vitamin D ◽  
Vitamin A ◽  
Dietary Vitamin

Low Dose Depot Oral Vitamin D3 Versus Daily Oral Vitamin D3 for Treating Nutritional Rickets: A Randomized Clinical Trial

2021 ◽  
pp. 1-18
Author(s):  
Ravneet Kaur Saluja ◽  
Pooja Dewan ◽  
Sunil Gomber ◽  
SV Madhu ◽  
Shuchi Bhatt ◽  
...  
Keyword(s):  
Vitamin D ◽  
Alkaline Phosphatase ◽  
Vitamin D3 ◽  
Low Dose ◽  
Care Hospital ◽  
Oral Vitamin ◽  
Nutritional Rickets ◽  
Vitamin D Levels ◽  
Radiological Healing ◽  
25 Oh Vitamin D

Abstract Objective: To compare the efficacy of daily versus low dose depot oral vitamin D3 for treating nutritional rickets. Design: Randomized Controlled Trial Setting: Paediatrics department of a tertiary care hospital catering to semi-urban and rural population in Delhi, India Methods: We randomized 66 children aged 3 months to 5 years with nutritional rickets to receive either daily oral vitamin D3 drops (3-12 months: 2000 IU; >12 months-5y: 4000 IU; n=33) for 12 weeks duration, or a single oral depot dose of vitamin D3 granules (3-12 months: 60,000 IU; >12 months-5y: 150,000 IU; n=33). Results: Participants in both groups had comparable demographic characteristics, laboratory features and radiological severity of rickets. 33 participants in each group received the assigned intervention and all were followed up till 12 weeks. At 12 weeks follow up, children in both groups showed a significant improvement in all biochemical parameters [serum calcium, phosphorus, alkaline phosphatase, parathormone and 25(OH) vitamin D levels] as well as radiological healing. At 12 weeks, the mean (SD) serum 25(OH) vitamin D levels (nmol/L) were statistically comparable in both groups [daily: 120.2 (83.2), depot: 108 (74), P=0.43] and 31 (94%) children in each group had radiological healing (Thacher score <1.5). Two children in each group persisted to have raised alkaline phosphatase and one child each in the daily group continued to have hypocalcemia and hypophosphatemia at 12 weeks. Conclusion: Low dose oral depot vitamin D3 is an effective alternative to daily oral vitamin D3 for nutritional rickets.

Sign in / Sign up

Export Citation Format

Share Document