Results 71 to 80 of about 202,557 (157)

Overweight and lower age at menarche: evidence from the Italian HBSC cross-sectional survey

BMC Women's Health, 2018
Background A unique standardized national dataset on adolescent girls (21 regions) participating in the Italian Health Behaviour in School-aged Children Study (HBSC) was used to investigate the correlation between body mass index (BMI) and age at ...
Giacomo Lazzeri, Claudia Tosti, Andrea Pammolli, Gianmarco Troiano, Alessio Vieno, Natale Canale, Paola Dalmasso, Patrizia Lemma, Alberto Borraccino, Felice Petraglia, Stefano Luisi   +10 more
doaj   +1 more source

Developmental changes in the histological structure of the testes, and testosterone profiles in male guinea fowls (Numida meleagris) [PDF]

, 2017
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until ...
Abdul-Rahman, Iddriss I., Jeffcoate, Ian A., Obese, Frederick Y.   +2 more
core   +1 more source

The Increased Sex Differences in Susceptibility to Emotional Stimuli during Adolescence: An Event-Related Potential Study

Frontiers in Human Neuroscience, 2018
The present study investigated how pubertal development and sex interact to influence humans’ emotion susceptibility during adolescence. Event-related potentials were recorded for highly emotional, mildly emotional and neutral stimuli in positive and ...
Jiemin Yang, Shu Zhang, Yixue Lou, Quanshan Long, Yu Liang, Shixue Xie, Jiajin Yuan   +6 more
doaj   +1 more source

The importance of elementary sexuality education [PDF]

, 2002
Includes bibliographical ...
Meillier, Jill M.
core  

Nonlinear growth generates age changes in the moments of the frequency distribution: the example of height in puberty [PDF]

, 2008
Higher moments of the frequency distribution of child height and weight change with age, particularly during puberty, though why is not known. Our aims were to confirm that height skewness and kurtosis change with age during puberty, to devise a model to
Cole, TJ, Cortina-Borja, M, Kelly, FP, Pan, HQ, Sandhu, J   +4 more
core  

High-fat diet-induced obesity accelerates puberty in male rats through SMIM20/phoenixin upregulation

Frontiers in Endocrinology
BackgroundControversy exists regarding the relationship between obesity and pubertal onset in boys, and the underlying mechanisms remain unclear.ObjectiveTo establish a high-fat diet (HFD)-induced obesity model in juvenile male Sprague-Dawley (SD) rats ...
Tao Xie, Tao Xie, Tao Xie, Tao Xie, Wei Qin, Wei Qin, Dan Zeng, Runqi Wang, Shuting Chen, Yanfei Chen, Jingzi Zhong, Dan Lan, Dan Lan, Dan Lan   +13 more
doaj   +1 more source

Diagnosis, treatment, and long-term follow-up of a 13-year-old boy with a testicular mixed germ cell tumor (yolk sac tumor and embryonal carcinoma): a case report and literature review

Frontiers in Pediatrics
Testicular germ cell tumors (TGCTs) are rare in children under 15 years of age. We report the first documented case of a mixed yolk sac tumor and embryonal carcinoma in the left testis of a 13-year-old boy in the early stages of puberty (12–14 years ...
Jing Yang, Jianjun Lai, Shiping Zheng, Huanmei Tang   +3 more
doaj   +1 more source

Faster rates of post-puberty kidney deterioration in males is correlated with elevated oxidative stress in males vs females at early puberty

BMC Genomics, 2007
Background Post-puberty deterioration of kidneys is more rapid in males than in females. To reveal the underlying molecular mechanisms for this difference, we analyzed gender-dependent gene expression in kidneys of three groups of 36 day-old rats ...
Jakob Petra, Mohamed Salah A, Techel Dieter, Kenzelmann Marc, Zhang Qingqin, Yu Xiaolei, Boehn Susanne N, Li Li, Kraenzlin Bettina, Hoffmann Sigrid, Gretz Norbert   +10 more
doaj   +1 more source

The effect of gonadoliberin analog treatment in precocious puberty on polycystic ovarian syndrome prevalence in adulthood

Frontiers in Endocrinology
Precocious puberty is diagnosed when pubertal characteristics appear before the age of 8 years in females. The most common form is gonadotropin-dependent, called axial.
Dominika Orszulak, Kacper Niziński, Adriana Bil, Aneta Gawlik, Katarzyna Ziora, Agnieszka Drosdzol-Cop   +5 more
doaj   +1 more source

Automatic Bone Age Determination in Adult Height Prediction for Girls with Early Variants Puberty and Precocious Puberty

JCRPE
Objective: In cases of precocious puberty, the determination of bone age (BA) is usually performed by clinicians using the Greulich-Pyle (GP) atlas, and there can be significant variation between assessors.
Murat Hüseyin Yiğit, Elif Eviz, Şükrü Hatun, Gül Yeşiltepe Mutlu   +3 more
doaj   +1 more source