Monthly Changes in Pubertal Growth in Yucatecan Adolescents

Wolański, Napoleon; Rojas, Armando Solares; Valentín, Graciela; Siniarska, Anna; Dickinson, Federico

doi:10.1080/09709274.2010.11906275

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Vitamin D-induced growth is analogous to catch-up growth (33). Growth is an intermittent, staccato process with punctuated periods of growth and intercedent periods of comparative stasis (30, 34). Vitamin D-induced growth is synchronised by the onset of irradiation; hence so are the periods of stasis.…”

Section: Discussionmentioning

confidence: 99%

The Seasonality of Slipped Upper Femoral Epiphysis - Meta-Analysis: A Possible Association with Vitamin D

et al. 2015

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We performed a meta-analysis of studies evaluating the seasonality of slipped upper femoral epiphysis (SUFE). In addition we compared the monthly incidences of SUFE at latitudes greater than 40° with the established serum 25-hydroxyvitamin levels for children resident at a comparative latitude. In total 11 relevant studies were identified, involving 7451 cases of SUFE. There was significant variation in the month of onset of SUFE. The degree of variability increased with increasing latitude. The modal month of symptomatic onset was dependent upon latitude. At latitudes greater than 40°, the most common month of onset was August. At latitudes between 20° and 40°, this was earlier in the calendar year, around April. The seasonal variability was statistically significant (p<0.0001 and p<0.005 for latitudes >40° and 20°-40° respectively). The pattern of monthly fluctuation in onset of SUFE very closely mirrored the monthly pattern of variation for serum 25-hydroxyvitamin D3. There was a very strong positive correlation (Spearman rank rho = + 0.8, p = 0.001). There is a monthly variation in incidence of SUFE. The degree of variability increases with increasing latitude. There may be an association with vitamin D. We hypothesise that elevated serum 25-hydroxyvitamin D3 accelerates growth thus rendering the growth plate vulnerable to slippage in analogous manner to the pubertal growth spurt.

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Section: Discussionmentioning

confidence: 99%

The Seasonality of Slipped Upper Femoral Epiphysis - Meta-Analysis: A Possible Association with Vitamin D

et al. 2015

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Height Growth and Percentage of Body Fat in Relation to Early Menarche in Girls from Merida, Yucatan, Mexico

Banik

Méndez-Domínguez

Dickinson

2015

Ecology of Food and Nutrition

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Early menarche (EM) (i.e., age at menarche [AAM] <12 years of age) is related to short height and higher body fatness. In a mixed-longitudinal study done in Merida, Yucatan, height, body mass index (BMI), and percentage of body fat (BF%) were recorded at a one-year interval among 258 postmenarcheal (EM = 94) girls. Anthropometric measurements were recorded of the age cohorts in 2008-09 when participants were 13-17 years of age (baseline), and in the one-year follow-up study (± 6 days) the girls were 14-18 years of age. The BF% was estimated through bioelectrical impedance analysis. Mean AAM was 10.59 years in EM girls and 12.54 years in not early menarche (NEM) girls. Height growth (cm/year) was greater in NEM girls. Mean values of BMI, BF%, and frequencies of stunting (low height-for-age) and excess weight (overweight + obesity) were higher in EM girls than in their NEM age peers.

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Monthly Changes in Pubertal Growth in Yucatecan Adolescents

Cited by 2 publications

References 6 publications

The Seasonality of Slipped Upper Femoral Epiphysis - Meta-Analysis: A Possible Association with Vitamin D

The Seasonality of Slipped Upper Femoral Epiphysis - Meta-Analysis: A Possible Association with Vitamin D

Height Growth and Percentage of Body Fat in Relation to Early Menarche in Girls from Merida, Yucatan, Mexico

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