Results 131 to 140 of about 80,797 (250)

Systematic review and meta-analysis of mean age at menarche in Iranian girls

Caspian Journal of Reproductive Medicine, 2015
Background: Many observational studies were published concerning the mean age at menarche and suggested those which may be a decreasing age at menarche in Iranian girls. The aim of this systematic review and meta-analysis was to estimate the overall mean
Farideh Mohsenzadeh- ledari, Afsaneh Keramat, Ahmad Khosravi   +2 more
doaj   +2 more sources

Body Mass Index and Hypertension as Mediators of the Association Between Age at Menarche and Subclinical Atherosclerosis: A Sex‐Specific Mendelian Randomization Analysis

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background Early age at menarche (AAM) has been associated with a higher risk of carotid artery intima‐media thickness (cIMT), an indicator of subclinical vascular disease, albeit the mechanisms underlying this association remain elusive.
Devendra Meena, Jian Huang, Marie‐Joe Dib, Julio Chirinos, Manyi Jia, Ganesh Chauhan, Dipender Gill, Paul Elliott, Abbas Dehghan, Ioanna Tzoulaki   +9 more
doaj   +1 more source

Dietary Diversity, Haemoglobin and Anaemia in Nepali Adolescent Girls: A Longitudinal Study

Maternal &Child Nutrition, Volume 22, Issue 1, March 2026.
ABSTRACT Adolescent girls and young women in Nepal are vulnerable to poor diets and anaemia, yet the extent of these risks remains overlooked. We assessed changes in dietary diversity, haemoglobin, and anaemia, and identified associated factors among adolescent girls and young women in Nepal.
Anjana Rai, Kenda Cunningham, Darren Wraith, Ramesh P. Adhikari, Marguerite C. Sendall, Naomi Saville, Smita Nambiar   +6 more
wiley   +1 more source

A Mixed Methods Analysis of Factors That Influence the Diet Quality and Decision‐Making of Adolescent Girls in an Urban Informal Settlement in Kenya

Maternal &Child Nutrition, Volume 22, Issue 1, March 2026.
ABSTRACT Due to the nutrition transition, adolescent diets globally appear to be shifting to increased consumption of fast foods and snacks high in sodium, added sugar, and saturated fat. In urban informal settlements in Kenya, limited evidence suggests adolescents consume 1–2 meals per day, have low dietary diversity, and consume foods from roadside ...
Emily R. Seiger, Mercy Owuor, Kipkoech N. Ruto, Peter D. Otieno, Rosebel Ouda, Mark Muasa, Kaburia F. Mwenda, Erick S. Nandoya, Jeffrey O. Okoro, Hillary Omala, Linda Adair, Penny Gordon‐Larsen, Venkata Saroja Voruganti, Alice S. Ammerman, Amanda L. Thompson, Katie Meyer, Stephanie L. Martin   +16 more
wiley   +1 more source

Association of Prenatal Urinary Concentrations of Phthalates and Bisphenol A and Pubertal Timing in Boys and Girls. [PDF]

, 2018
BackgroundAnimal studies suggest that phthalates and bisphenol A (BPA), endocrine-disrupting chemicals found in many consumer products, may impact the timing of puberty.ObjectivesWe aimed to determine the association of prenatal exposure to high ...
Berger, Kimberly, Calafat, Antonia M, Eskenazi, Brenda, Greenspan, Louise C, Harley, Kim G, Holland, Nina, Kogut, Katherine, Lustig, Robert H, Parra, Kimberly, Ye, Xiaoyun   +9 more
core   +1 more source

A Comparative Study of Melanocytic Tumours: Linking Portuguese Dogs and Cats to Human Cases

Veterinary and Comparative Oncology, Volume 24, Issue 1, Page 105-120, March 2026.
ABSTRACT Melanocytic tumours (MT) occur in both humans and companion animals, presenting an opportunity for comparative oncology research. Thus, this study provides a comprehensive epidemiological analysis comparing MT in Portuguese dogs, cats and humans. Data were obtained from the Portuguese National Cancer Registry (RON) (2011–2021) and Vet‐OncoNet (
Catarina Alves Pinto, Ana Isabel Ribeiro, João Niza‐Ribeiro, Carlos Alberto Palmeira de Sousa, Katia Pinello, Andreia Alexandra Ferreira Santos   +5 more
wiley   +1 more source

Age at menarche of schoolgirls in Egypt

Annals of Human Biology, 1978
The mean ages at menarche of 1365 Egyptian girls attending eight different schools in the Cairo region and representing three strikingly different socio-economic sectors were estimated by probit analysis as 12.59 +/- 0.29 for the well-off girls in Cairo; 13.09 +/- 0.17 for the middle-class girls in Cairo; 13.89 +/- 0.18 for rural agricultural areas ...
openaire   +2 more sources

The Shuar Health and Life History Project: Overview at 20 Years and Introduction to the Special Issue

American Journal of Human Biology, Volume 38, Issue 2, February 2026.
ABSTRACT The Shuar Health and Life History Project (established in 2005) is an interdisciplinary, integrated field and laboratory research project with the Indigenous Shuar population in Amazonian Ecuador. Grounded in human biology, behavioral ecology, evolutionary psychology, evolutionary medicine, and global health, the SHLHP has three key research ...
Samuel S. Urlacher, Theresa E. Gildner, Lawrence S. Sugiyama   +2 more
wiley   +1 more source

Pubertal Hormones and the Early Adolescent Female Brain: A Multimodality Brain MRI Study

Human Brain Mapping, Volume 47, Issue 2, February 1, 2026.
A multimodal analysis with cross‐validation was employed to examine the associations between pubertal hormones (oestradiol, testosterone, and dehydroepiandrosterone) and brain structure and function in early adolescent females. The findings indicate both unique and overlapping neural correlates of these hormones.
Muskan Khetan, Nandita Vijayakumar, Ye Ella Tian, Megan M. Herting, Michele O'Connell, Marc Seal, Sarah Whittle   +6 more
wiley   +1 more source

THE CORRELATION ANALYSIS BETWEEN CHARACTERISTICS WITH KNOWLEDGE AND ATTITUDE ABOUT MENARCHE IN ELEMENTARY SCHOOL STUDENTS [PDF]

, 2015
A teenage life is started by puberty. The important stage of it is called menarche. The trend of the menarche’s age in Indonesia at the early years of age 12,5-13 can cause the attitude is not ready, psychosocial disorders, and teen pregnancy, so they ...
Purnamaningrum, Yuliasti Eka, Wahyuningsih, Heni Puji, Wibowo, Devy Vernanda Gita   +2 more
core   +1 more source