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Pubertal stress accelerates copulation in adult male rats: Mitigating effects of a high-calorie diet in adulthood.
Physiol Behav
December 2024
Instituto de Investigaciones Cerebrales, Universidad Veracruzana, Avenida Luis Castelazo s/n Col. Industrial Ánimas, Xalapa, Veracruz C. P. 91190. Mexico.
The pubertal phase involves significant brain reorganization, where external stressors and diet can profoundly influence long-term behavioral outcomes. In this study, we investigated the interaction between acute pubertal stress (via immune challenge) and a hypercaloric diet in adulthood on the copulatory sexual behavior of male Wistar rats. At postnatal day (PND) 35, pubertal males received a single injection of lipopolysaccharide (LPS, 1.
View Article and Find Full Text PDFBackground: Puberty menorrhagia, characterized by prolonged and excessive menstrual bleeding between menarche and 19 years of age, presents clinical challenges at adolescents and it is attributed to an immature hypothalamo-pituitary-ovarian axis, leading to sustained high estrogen levels and anovulation. This case report explores the efficacy of acupuncture as an adjunctive therapy for pubertal menorrhagia of a 16-year-old female with a history of irregular menstrual cycles and excessive bleeding for 41 days.
Methodology: Based on Traditional Chinese Medicine (TCM) tongue and pulse diagnostics of the patient, acupuncture needling at SP4 (Gongsun), PC 6 (Neiguan), KI 14 (Siman), SP 10 (Xuehai), LR 1 (Dadun), CV 6 (Qihai) was given once in a day for a month, each session lasting 20 min targeting to alleviate Liver blood stasis.
Food insecurity and BMI are associated with depressive symptoms among adolescents in Yogyakarta province, Indonesia, during the COVID-19 pandemic: a 1-year longitudinal study.
Br J Nutr
December 2024
Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, the Netherlands.
The COVID-19 pandemic has presented multifaceted challenges globally, impacting adolescent health. Among these, food security and nutrition are intertwined closely with mental health outcomes. In Indonesia, with its diverse socio-economic landscape, these interconnections may have been exacerbated by the pandemic.
View Article and Find Full Text PDFEarlier pubertal timing, not tempo, links time-limited early adversity with psychopathology.
Neurotoxicol Teratol
December 2024
Institute of Child Development, University of Minnesota- Twin Cities, Minneapolis, MN, USA.
Evolutionary-developmental theories propose that early adverse experiences adaptively shift the timing (i.e., onset) and tempo (i.
View Article and Find Full Text PDFA complex mechanism translating variation of a simple genetic architecture into alternative life histories.
Proc Natl Acad Sci U S A
November 2024
Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki 00014, Finland.
Understanding the processes that link genotype to phenotype is a central challenge in biology. Despite progress in discovering genes associated with ecologically relevant traits, a poor understanding of the processes and functions via which molecules mediate evolutionary differences leaves us critically far from linking proximate and ultimate causes of evolution. This knowledge gap is particularly large in multifaceted phenotypes of ecological relevance such as life histories where multiple traits covary and influence fitness.
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