Evidence map›Paper›PMID 21656018›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2012

PTH level but not 25 (OH) vitamin D level predicts bone loss rates in the elderly.

A Arabi, R Baddoura, R El-Rassi, G El-Hajj Fuleihan

Abstract read
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In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 3 pooled it
6.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
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  4. Trial
  5. Impact of Calcium and Two Doses of Vitamin D on Bone Metabolism in the Elderly: A Randomized Controlled Trial.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2017
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  16. The levels of bone turnover markers 25(OH)D and PTH and their relationship with bone mineral density in postmenopausal women in a suburban district in China.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
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  18. Skeletal and nonskeletal effects of vitamin D: is vitamin D a tonic for bone and other tissues?Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Review
  19. Variations in parathyroid hormone concentration in patients with low 25 hydroxyvitamin D.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

A ArabiCalcium Metabolism and Osteoporosis Program, American University of Beirut Medical Center, Bliss street, Beirut, Lebanon. aa22@aub.edu.lb
R Baddoura
R El-Rassi
G El-Hajj Fuleihan
American University of Beirut Medical Center · LBSaint Joseph University · LB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledWe assessed the impact of calciotropic hormones on bone loss in 195 elderly subjects. After a median follow up of 4 years, parathyroid hormone (PTH) correlated negatively with changes in bone mineral density (BMD) at all skeletal sites. After adjustment for potential predictors of bone loss in the elderly, PTH level alone explained 3% of the variance in BMD changes at the hip.

introductionThis study assessed the impact of calciotropic hormones on bone loss rates in an elderly population-based cohort of 195 ambulatory men and women, aged 65-85 years and followed up for a median of 4 years.

methodsCalcium intake, serum calcium, and phosphorus were assessed at baseline. Serum creatinine was measured at follow up visit. The 25 (OH) vitamin D [25-OHD] and PTH were measured at baseline and at follow up. Bone mass at the lumbar spine, hip, forearm and total body, as well as body composition was measured at baseline and at follow up by dual energy X-ray absorptiometry.

resultsMean 25-OHD level was 14.7 ± 6.4 ng/ml and mean PTH level was 47.9 ± 30.4 pg/ml. Age correlated negatively with percent changes in BMD at all skeletal sites (p < 0.05). Changes in body mass index (BMI) and in body composition correlated positively with BMD changes at all sites, except at the forearm. There was no correlation between 25-OHD and changes in BMD except at the trochanter (r = 0.19, p < 0.008). Conversely, PTH negatively correlated with changes in BMD at all skeletal sites (r = -0.14 to -0.27, p < 0.05). This correlation persisted after adjustment for age, changes in BMI, changes in fat mass and lean mass, serum creatinine, calcium intake, and 25-OHD levels. PTH level alone explained 3% of the variance in BMD changes at all hip subregions.

conclusionsSerum PTH, but not 25-OHD, predicted bone loss rates in the elderly. Thus, it is important to normalize PTH level when correcting hypovitaminosis D in the elderly.

Indexed as

AgedAged, 80 and overBiomarkersBody CompositionBody Mass IndexBone DensityCalciumCalcium, DietaryCreatinineFemaleFollow-Up StudiesHumansLebanonMaleOsteoporosisOsteoporosis, Postmenopausal25-hydroxyvitamin DBiomarkersCalciumCalcium, DietaryCreatinineParathyroid HormonePhosphorusVitamin D

Identifiers

PMID21656018
OpenAlexW2142009772

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.