Assessment of the median ages at sexual maturation stages of Brazilian schoolchildren according to overweight status and type of school over a 5‐year period: 2007–2012/2013

2021 ◽  
Author(s):  
Luísa Harumi Matsuo ◽  
Fernando Adami ◽  
Diego Augusto Santos Silva ◽  
Francisco Assis Guedes de Vasconcelos ◽  
Giana Zarbato Longo ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Overweight Status ◽  
Maturation Stages ◽  
Type Of School

Evaluation of Sexual Maturation Stages and Sexuality Aspects in Adolescents with IBD in Remission

2006 ◽  
Vol 43 (Suppl 2) ◽  
pp. S46
Author(s):  
YKL Koda ◽  
E Vidolin ◽  
RC Mattar ◽  
GH Yonamine ◽  
PW Caldeira ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Maturation Stages

Validation of macroscopic maturity stages of the Patagonian red octopus Enteroctopus megalocyathus

2012 ◽  
Vol 93 (3) ◽  
pp. 833-842 ◽  
Author(s):  
Nicolas Ortiz
Keyword(s):  
Sexual Maturation ◽  
Reproductive System ◽  
Seminiferous Tubule ◽  
Atlantic Coast ◽  
Microscopic Level ◽  
Maturity Index ◽  
Follicular Cell ◽  
Seminiferous Tubules ◽  
Cell Complexes ◽  
Maturation Stages

Testes and ovaries of Enteroctopus megalocyathus collected along the Patagonian Atlantic coast were analysed histologically to validate the macroscopic maturity scales adopted for this species. Changes through the course of development of the seminiferous tubules and of the oocyte/follicular cell complexes were characterized and these were classified into five and six microscopic categories of development respectively. A histological maturity index, based on the frequencies of microscopic categories, was used to assess the correspondence between macroscopic maturation stages and the microscopic level of development of the gonadal tissue. Seminiferous tubules showed a regular and progressive pattern of microscopic development within each macroscopic stage and between consecutive macroscopic stages. However, a minority of males exhibiting seminiferous tubule with sperm did not display macroscopic characteristics of the mature-spawning stage. In females, an overlapping of microscopic categories was observed in maturing macroscopic stages. Previtellogenic oocytes were not present at mature-spawning or spent stages. Significant changes in the histological maturity index were observed between consecutive macroscopic stages, confirming the validity of macroscopic maturity scales of both sexes. In addition, by considering both macroscopic and microscopic criteria, it was possible to determine the overall state of development and functioning of the reproductive system during sexual maturation of this species.

scholarly journals Transcriptome Profiling of Testis during Sexual Maturation Stages in Eriocheir sinensis Using Illumina Sequencing

PLoS ONE ◽  
2012 ◽  
Vol 7 (3) ◽  
pp. e33735 ◽  
Author(s):  
Lin He ◽  
Qun Wang ◽  
Xinkun Jin ◽  
Ying Wang ◽  
Lili Chen ◽  
...  
Keyword(s):  
Illumina Sequencing ◽  
Sexual Maturation ◽  
Transcriptome Profiling ◽  
Eriocheir Sinensis ◽  
Maturation Stages

Growth Diagrams 1965 Netherlands: Second National Survey on 0-24-Year-Olds, by J. C. Van Wieringen, F. Wafelbakker, H. P. Verbrugge, J. H. DeHaas. Groningen: Wolters-Noordhoff Publishing, 1971, 68 pp., no price given

PEDIATRICS ◽  
1972 ◽  
Vol 49 (3) ◽  
pp. 484-485
Author(s):  
Rose E. Frisch
Keyword(s):  
Young Adults ◽  
The Netherlands ◽  
National Survey ◽  
Sexual Maturation ◽  
Growth Curves ◽  
Adolescent Boys ◽  
Cross Sectional ◽  
Maturation Stages ◽  
Children And Young Adults ◽  
Sex Maturation

This excellently organized small book presents the results of the second national, cross-sectional growth survey held in the Netherlands in 1964 to 1966. Height and weight measurements of more than 54,000 children and young adults, 6 to 24 years of age, are clearly presented in tables and diagrams. Sex maturation characteristics were also surveyed for more than 6,500 adolescent boys and girls. Color photographs of the criteria are given. The graphs which combine growth curves and sexual maturation stages for girls and boys are especially illuminating.

Profiling microRNAs in the testis during sexual maturation stages in Eriocheir sinensis

2015 ◽  
Vol 162 ◽  
pp. 52-61 ◽  
Author(s):  
Lin He ◽  
Yuan-Li Wang ◽  
Qing Li ◽  
Hong-Dan Yang ◽  
Ze-Lin Duan ◽  
...  
Keyword(s):  
Sexual Maturation ◽  
Eriocheir Sinensis ◽  
Maturation Stages

Cell Reactivity Pattern of the Guinea Pig Cecal Mucosa Evidenced by the ZIO Technique

1982 ◽  
Vol 40 ◽  
pp. 50-51
Author(s):  
Juan Mora-Galindo ◽  
Jorge Arauz-Contreras
Keyword(s):  
Guinea Pig ◽  
Phase Contrast ◽  
Osmium Tetroxide ◽  
Cell Types ◽  
Cell Reactivity ◽  
Transmission Electron ◽  
Neural Tissues ◽  
Maturation Stages ◽  
Zinc Iodide ◽  
Cecal Mucosa

The zinc iodide-osmium tetroxide (ZIO) technique is presently employed to study both, neural and non neural tissues. Precipitates depends on cell types and possibly cell metabol ism as well.Guinea pig cecal mucosa, already known to be composed of epithelium with cells at different maturation stages and lamina propria which i s formed by morphologically and functionally heterogeneous cell population, was studied to determine the pat tern of ZIO impregnation. For this, adult Guinea pg cecal mucosa was fixed with buffered 1.2 5% g 1 utara 1 dehyde before incubation with ZIO for 16 hours, a t 4°C in the dark. Further steps involved a quick sample dehydration in graded ethanols, embedding in Epon 812 and sectioning to observe the unstained material under a phase contrast light microscope (LM) and a transmission electron microscope (TEM).

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