Results 71 to 80 of about 6,072,229 (217)
Journal of Animal Breeding and Genetics, EarlyView.ABSTRACT The Girolando breed, a cross between Holstein (Bos taurus) and Gir (Bos indicus), is the primary choice for dairy production in Brazilian tropical regions, as it combines high productive potential with adaptation to the tropical environment.
Laura B. da C. Pereira +6 more
wiley +1 more source
A Testicular Leydig Cell Tumor; An Uncommon Cause of Precocious Puberty: A Case Report With Secondary Central Precocious Puberty [PDF]
Sexual precocity in boys is defined as any sign of secondary sexual characteristics present before the age of 9. Leydig cell tumors of the testes are a rare cause of peripheral precocious puberty in boys. Here, we report 8 years and 4-month-old boys with
Farzaneh, Mohammad Reza +2 more
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A case of late presentation of precocious puberty due to pituitary astrocytoma
Aktualności Neurologiczne, 2015 The importance of assessing precocious puberty, especially in boys, is not only due to the great complications it has for the affected patients, but also to the fatal underlying diseases. Therefore, children with central precocious puberty should first
Fahimeh Soheilipour +3 more
doaj +1 more source
Journal of Child Psychology and Psychiatry, EarlyView.Background Early puberty timing is linked to altered neurodevelopment and adverse mental health outcomes, yet its relationship with cognitive functioning remains unclear. We examined the effects of puberty timing across multiple cognitive domains.
Lars Dinkelbach +8 more
wiley +1 more source
Journal of Fish Biology, EarlyView.Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez +5 more
wiley +1 more source
Endokrynologia Polska, 2009 Central precocious puberty, defined as the onset of puberty before the age 8 years in girls and 9 years in boys, results from a premature activation of gonadotropin-releasing hormone neurons in the hypothalamus. This condition is characterised by early pubertal changes, acceleration of growth velocity, and rapid bone maturation that often result in ...
Robert, Krysiak +2 more
openaire +1 more source
Clinics, 2018 OBJECTIVES: Unfavorable predicted adult height and psychosocial inadequacy represent parameters used to guide therapeutic intervention in girls with central precocious puberty. Gonadotropin-releasing hormone analog is the first-line treatment. The aim of
Mateus Cavarzan Lopes +4 more
doaj +1 more source
Narcolepsy and rapid eye movement sleep
Journal of Sleep Research, Volume 34, Issue 2, April 2025.Summary Since the first description of narcolepsy at the end of the 19th Century, great progress has been made. The disease is nowadays distinguished as narcolepsy type 1 and type 2. In the 1960s, the discovery of rapid eye movement sleep at sleep onset led to improved understanding of core sleep‐related disease symptoms of the disease (excessive ...
Francesco Biscarini +4 more
wiley +1 more source
Asian Journal of AndrologyCentral precocious puberty secondary to Leydig cell tumors is rare in children. We retrospectively analyzed the mid- to long-term follow-up data of patients with Leydig cell tumors. The clinical data of 12 consecutive patients who were treated at Beijing
Pei Liu +4 more
doaj +1 more source
New Phytologist, Volume 252, Issue 3, Page 1296-1313, November 2026.The MexMAGIC population mixes native maize varieties from across Mexico to study functional genetic diversity. Summary Defining the genetic basis of local adaptation is a key goal of evolutionary biology and crop improvement. Theory predicts that when selective pressures follow differences in the environment, a cline will be established.
Sergio Perez‐Limón +18 more
wiley +1 more source