Sexualité et adolescence : liaisons dangereuses ? guide des meilleures pratiques pour informer les parents

Les parents sont souvent réticents à parler de sexualité et de relations amoureuses avec leurs adolescents. Cependant, ces discussions ont un rôle majeur pour la santé de leurs enfants. Les professionnels de santé sont une source d’informations fiable et de soutien pour les parents dans cette démarche. De nombreuses interactions courtes durant les années de l’adolescence, entre parents et adolescents, basées sur des questions et des situations rencontrées permettent de couvrir les nombreuses thématiques liées à la sexualité. Cet article propose une aide pour les professionnels de santé afin d’informer les parents et les encourager à ouvrir le dialogue avec leurs enfants. Il résume les meilleures pratiques pour favoriser la communication avec des adolescents concernant la sexualité

Le clitoris, état des lieux pluridisciplinaire

Le clitoris, état des lieux pluridisciplinaire Anatomie, embryologie, histologie, histoire... Cet article, propose un tour d’horizon des savoirs actuels sur le clitoris. Un état des lieux bienvenu dans un contexte de diffusion des connaissances, pour plus d’égalité et de reconnaissance des droits sexuels

Adolescents transgenres et non ­binaires : approche et prise en charge par les médecins de premier recours

Les adolescents transgenres, non binaires ou en questionnement sont de plus en plus visibles et font face à de nombreux obstacles pour accéder à des soins appropriés, tant pour leurs besoins de santé spécifiques que généraux. Les médecins de premier recours les rencontrent au cabinet et peuvent manquer d’éléments de communication et de connaissances spécifiques récentes pour mener la consultation et accompagner ces personnes et leurs proches dans leurs trajectoires individuelles. Cet article propose une synthèse des éléments et des ressources utiles pour le médecin de premier recours, dont le rôle est ­central pour la santé de tous les patients.Transgender, non-binary and questioning teenagers are increasingly visible. However, they face barriers in accessing appropriate care that meet their needs, both specific and regarding their general health. Primary care physicians increasingly see them in consultations but often lack elements of communication and recent knowledge that is needed to accompany them and their close ones in their -individual trajectories. This article aims to answer this need and provides a synthesis about recent evidence and suggested communication approaches for primary care physicians, who play a central role for the health of all patients

Beta- and gamma-cytoplasmic actins are required for meiosis in mouse oocytes

In mammals, female meiosis consists of two asymmetric cell divisions, which generate a large haploid oocyte and two small polar bodies. Asymmetric partitioning of the cytoplasm results from migration of the meiotic spindle toward the cortex and requires actin filaments. However, the subcellular localization and the role of the existing two cytoplasmic actin (CYA) isoforms, beta and gamma, have not been characterized. We show that beta- and gamma-CYA are differentially distributed in the maturing oocyte from late metaphase I as well as in preimplantation embryos. Gamma-CYA is preferentially enriched in oocyte cortices and is absent from all cell-cell contact areas from metaphase II until the blastocyst stage. Beta-CYA is enriched in contractile structures, at cytokinesis, at cell-cell contacts, and around the forming blastocoel. Alteration of beta- or gamma-CYA function by isoform-specific antibody microinjection suggests that gamma-CYA holds a major and specific role in the establishment and/or maintenance of asymmetry in meiosis I and in the maintenance of overall cortical integrity. In contrast, beta- and gamma-CYA, together, appear to participate in the formation and the cortical anchorage of the second meiotic spindle in waiting for fertilization. Finally, differences in gamma-CYA expression are amongst the earliest markers of cell fate determination in development

Reducing the use of screen electronic devices in the evening is associated with improved sleep and daytime vigilance in adolescents

The use of screen electronic devices in the evening negatively affects sleep. Yet, sleep is known to be essential for brain maturation and a key factor for good academic performance, and thus is particularly critical during childhood and adolescence. Although previous studies reported associations between screen time and sleep impairment, their causal relationship in adolescents remains unclear. Using actigraphy and daily questionnaires in a large sample of students (12 to 19 years old), we assessed screen time in the evening and sleep habits over 1 month. This included a 2 week baseline phase, followed by a 40 min sleep education workshop and a 2 week interventional phase, in which participants were asked to stop using screen devices after 9 pm during school nights. During the interventional phase, we found that the reduction of screen time after 9 pm correlated with earlier sleep onset time and increased total sleep duration. The latter led to improved daytime vigilance. These findings provide evidence that restricting screen use in the evening represents a valid and promising approach for improving sleep duration in adolescents, with potential implications for daytime functioning and health