Results 91 to 100 of about 3,599,127 (301)

Hydrogen sulfide repairs testicular damage induced by heat stress in rats

open access: yesFEBS Open Bio, EarlyView.
Heat stress can cause testicular damage and affect fertility. We investigated the potential protective role of hydrogen sulfide (H2S) against heat stress‐induced testicular injury and observed that H2S donor NaHS can effectively restore testicular damage in rats by inhibiting inflammation and oxidative stress. Our results suggest that H2S might be used
Xinyu Guo   +6 more
wiley   +1 more source

Neurogenin 3 Mediates Sex Chromosome Effects on the Generation of Sex Differences in Hypothalamic Neuronal Development

open access: yesFrontiers in Cellular Neuroscience, 2014
The organizational action of testosterone during critical periods of development is the cause of numerous sex differences in the brain. However, sex differences in neuritogenesis have been detected in primary neuronal hypothalamic cultures prepared ...
Maria Julia Scerbo   +8 more
doaj   +1 more source

Sexual Ambiguity—A Social Predicament

open access: yesDr. Sulaiman Al Habib Medical Journal, 2019
Among the diverse clinical manifestations of Disorders of Sex Development (DSD), the ambiguous look of genitalia is the most typical disorder. In this condition, the sex of the newborn cannot be readily differentiated because of atypical appearance of ...
Zair Hassan   +4 more
doaj   +1 more source

Evaluation of the dose reduction effect of crystalline lens exposure in cone‐beam computed tomography with bismuth eye shield for image‐guided radiation therapy: An anthropomorphic phantom study

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract This study aimed to evaluate the dose‐exposure reduction effect of a crystalline lens with a bismuth eye shield using cone‐beam computed tomography (CBCT) for head image‐guided radiation therapy. The ocular surface dose of the head phantom (THRA‐1) is defined as a crystalline lens exposure dose and is measured using a radiophotoluminescence ...
Tatsuya Yoshida   +5 more
wiley   +1 more source

Detecting non-binomial sex allocation when developmental mortality operates [PDF]

open access: yesarXiv, 2016
Optimal sex allocation theory is one of the most intricately developed areas of evolutionary ecology. Under a range of conditions, particularly under population sub-division, selection favours sex being allocated to offspring non-randomly, generating non-binomial variances of offspring group sex ratios.
arxiv  

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki   +9 more
wiley   +1 more source

Cystoscopy to investigate the prevalence of prostatic utricle cyst in boys with proximal hypospadias and its implications in medium-term follow-up

open access: yesFrontiers in Pediatrics
PurposeProstatic utricle cyst (PUC) is known to be associated with hypospadias. We aimed to investigate the prevalence of PUC in children with proximal hypospadias by cystoscopy, and risk of symptom development after hypospadias repair.MethodsWe ...
Yuenshan Sammi Wong   +3 more
doaj   +1 more source

A Human Gonadal Cell Model From Induced Pluripotent Stem Cells

open access: yesFrontiers in Genetics, 2018
Sertoli cells are main players in the male gonads development and their study may shed light on 46,XY disorders of sex development (DSD). Mature primary Sertoli cells are incapable of proliferating in prolonged in vitro cultures and the available Sertoli
Daniel Rodríguez Gutiérrez   +3 more
doaj   +1 more source

Sex differences in the development of fearfulness: A replication [PDF]

open access: yesPsychonomic Science, 1969
Human infants differ in the age at which they first begin to-fear the visually unfamiliar. Among a sample of male infants, a precocious onset of fear was predictive of heightened fearfulness at age 1 year; such developmental continuity was not observed in a comparable female sample.
openaire   +2 more sources

An extension to the OVH concept for knowledge‐based dose volume histogram prediction in lung tumor volumetric‐modulated arc therapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Volumetric‐modulated arc therapy (VMAT) treatment planning allows a compromise between a sufficient coverage of the planning target volume (PTV) and a simultaneous sparing of organs‐at‐risk (OARs). Particularly in the case of lung tumors, deciding whether it is possible or worth spending more time on further improvements of a treatment
Johann Brand   +4 more
wiley   +1 more source

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