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Titolo:
Lower femoral neck bone mineral density in prepubertal former preterm girls
Autore:
Zamora, SA; Belli, DC; Rizzoli, R; Slosman, DO; Bonjour, JP;
Indirizzi:
Univ Hosp, Dept Paediat, Gastroenterol Unit, Geneva, Switzerland Univ Hosp Geneva Switzerland t, Gastroenterol Unit, Geneva, Switzerland Univ Hosp, Dept Internal Med, Div Bone Dis, Geneva, Switzerland Univ HospGeneva Switzerland nal Med, Div Bone Dis, Geneva, Switzerland Univ Hosp, Dept Radiol, Div Nucl Med, Geneva, Switzerland Univ Hosp Geneva Switzerland Radiol, Div Nucl Med, Geneva, Switzerland
Titolo Testata:
BONE
fascicolo: 5, volume: 29, anno: 2001,
pagine: 424 - 427
SICI:
8756-3282(200111)29:5<424:LFNBMD>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
BORN CHILDREN; BIRTH-WEIGHT; EARLY DIET; EARLY-LIFE; INFANTS; MASS; GROWTH; AGE; PREGNANCY; CALCIUM;
Keywords:
osteoporosis; peak bone mass; premature infant; growth; follow-up;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Zamora, SA Hop Enfants, Unite Gastroenterol Pediat, Rue Willy Donze 6, CH-1211 Geneva14, Switzerland Hop Enfants Rue Willy Donze 6 Geneva Switzerland 14 witzerland
Citazione:
S.A. Zamora et al., "Lower femoral neck bone mineral density in prepubertal former preterm girls", BONE, 29(5), 2001, pp. 424-427

Abstract

The purpose of this case-control study was to determine bone mineral content and areal bone mineral density at various skeletal sites in former preterm girls, aged 7-9 years, and to compare these data with age-matched term controls. Subjects included 25 white, prepubertal, former preterm girls (gestational age 30.8 +/- 0.3 weeks, birthweight 1461 +/- 56 g [mean +/- SEM]). Controls included 50 healthy, white, prepubertal girls born at term and matched for age (two controls per case). Measurements included anthropometrievariables, calcium intake according to a food-frequency questionnaire, bone mineral content (BMC; grams), and areal bone mineral density (aBMD; gramsper square centimeter), using dual-energy X-ray absorptiometry (DXA) at six skeletal sites. Thirteen preterm girls and 13 age-matched term controls were reassessed 1 year after the first DXA measurement. The former preterm girls were similar to controls in terms of age and height, but were lighter (24.6 +/- 0.6 vs. 27.0 +/- 0.6 kg, p = 0.02). They also reported a higher median calcium intake (1058 vs. 759 mg/day,p = 0.004). aBMD was lower in former preterms compared with controls at the level of the radial metaphysis (0.283 +/- 0.006 vs. 0.298 +/- 0.004, p = 0.04), femoral neck (0.593 +/- 0.011 vs. 0.638 +/- 0.010, p = 0.007), and total hip (0.596 +/- 0.012 vs. 0.640 +/- 0.010,p = 0.007), but was similar between the two groups at the radial diaphysis (0.437 +/- 0.004 vs. 0.436 +/- 0.004) and femoral diaphysis (1.026 +/- 0.015 vs. 1.030 +/- 0.011). Femoral neck aBMD remained lower compared with controls in the subgroup of preterm girls reassessed after 1 year (0.608 +/- 0.017 vs. 0.672 +/- 0.020, p = 0.02). In random effects models for longitudinal data, taking into account the effects of age, weight, and height on aBMD (dependent variable), femoral neck aBMD remained lower in former preterms (p < 0.001). Prepubertal former preterm girls showed growth recovery, but had lower aBMD at the hip and radial metaphysis than age-matchedterm controls, despite spontaneously higher calcium intake. Preterm girls had similar aBMD results compared with controls at sites with predominantlycortical bone (radial and femoral diaphysis), which are known to be more sensitive to calcium intake. (C) 2001 by Elsevier Science Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 07:08:03