22 recherche sur le mot-clé 'Testostérone'

No relationship between early postnatal testosterone concentrations and autistic traits in 18 to 30-month-old children / Karson T. F. KUNG in Molecular Autism, 7 (2016)  

Public ISBD [article]  inMolecular Autism > 7 (2016) . - 15p. Titre : No relationship between early postnatal testosterone concentrations and autistic traits in 18 to 30-month-old children Type de document : Texte imprimé et/ou numérique Auteurs : Karson T. F. KUNG, Auteur ; M. CONSTANTINESCU, Auteur ; W. V. BROWNE, Auteur ; R. M. NOORDERHAVEN, Auteur ; M. HINES, Auteur Article en page(s) : 15p. Langues : Anglais (eng) Mots-clés : Adult  Autism Spectrum Disorder/metabolism/psychology  Birth Weight  Child Development  Child, Preschool  Female  Humans  Infant  Male  Maternal Age  Parents/education  Paternal Age  Risk Factors  Saliva/chemistry  Siblings  Surveys and Questionnaires  Symptom Assessment  Testosterone/analysis  Autism  Gender differences  Postnatal development  Sex differences  Testosterone Index. décimale : PER Périodiques Résumé : BACKGROUND: Some previous research has suggested that testosterone prenatally contributes to gender differences in autistic traits, but little is known about the role of testosterone during early postnatal development (mini-puberty). Two prior studies found no sex difference in testosterone postnatally in saliva samples and detected little to no relationship between testosterone postnatally and autistic traits in toddlers. These findings may reflect late measurements of testosterone at 3 to 4 months of age, after the peak of mini-puberty at 1 to 3 months of age. The present study examined the relationship between testosterone at 1 to 3 months of age and autistic traits at 18 to 30 months of age. FINDINGS: Testosterone was measured in saliva samples collected from children at 1 to 3 months of age. When the children (40 boys, 47 girls) reached 18 to 30 months of age, parents completed the Quantitative Checklist for Autism in Toddlers (Q-CHAT). Boys had higher concentrations of testosterone postnatally and higher Q-CHAT scores than girls. However, testosterone did not correlate with Q-CHAT scores in boys, girls, or the entire sample. CONCLUSIONS: The current results suggest that testosterone during the early postnatal period does not contribute to later autistic traits. Given our relatively small samples and therefore limited power, however, further research could usefully examine if testosterone in saliva samples collected during the peak of mini-puberty in larger groups predicts autistic traits or other traits that show gender differences. En ligne : http://dx.doi.org/10.1186/s13229-016-0078-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328 [article] No relationship between early postnatal testosterone concentrations and autistic traits in 18 to 30-month-old children [Texte imprimé et/ou numérique] / Karson T. F. KUNG, Auteur ; M. CONSTANTINESCU, Auteur ; W. V. BROWNE, Auteur ; R. M. NOORDERHAVEN, Auteur ; M. HINES, Auteur . - 15p. Langues : Anglais (eng) in Molecular Autism > 7 (2016) . - 15p. Mots-clés : Adult  Autism Spectrum Disorder/metabolism/psychology  Birth Weight  Child Development  Child, Preschool  Female  Humans  Infant  Male  Maternal Age  Parents/education  Paternal Age  Risk Factors  Saliva/chemistry  Siblings  Surveys and Questionnaires  Symptom Assessment  Testosterone/analysis  Autism  Gender differences  Postnatal development  Sex differences  Testosterone Index. décimale : PER Périodiques Résumé : BACKGROUND: Some previous research has suggested that testosterone prenatally contributes to gender differences in autistic traits, but little is known about the role of testosterone during early postnatal development (mini-puberty). Two prior studies found no sex difference in testosterone postnatally in saliva samples and detected little to no relationship between testosterone postnatally and autistic traits in toddlers. These findings may reflect late measurements of testosterone at 3 to 4 months of age, after the peak of mini-puberty at 1 to 3 months of age. The present study examined the relationship between testosterone at 1 to 3 months of age and autistic traits at 18 to 30 months of age. FINDINGS: Testosterone was measured in saliva samples collected from children at 1 to 3 months of age. When the children (40 boys, 47 girls) reached 18 to 30 months of age, parents completed the Quantitative Checklist for Autism in Toddlers (Q-CHAT). Boys had higher concentrations of testosterone postnatally and higher Q-CHAT scores than girls. However, testosterone did not correlate with Q-CHAT scores in boys, girls, or the entire sample. CONCLUSIONS: The current results suggest that testosterone during the early postnatal period does not contribute to later autistic traits. Given our relatively small samples and therefore limited power, however, further research could usefully examine if testosterone in saliva samples collected during the peak of mini-puberty in larger groups predicts autistic traits or other traits that show gender differences. En ligne : http://dx.doi.org/10.1186/s13229-016-0078-8 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328

The intersection and developmental trajectory of morning cortisol and testosterone in autistic and neurotypical youth / Trey MCGONIGLE ; Rachael A MUSCATELLO ; Simon VANDEKAR ; Rachel CALVOSA in Molecular Autism, 16 (2025)  

Public ISBD [article]  inMolecular Autism > 16 (2025) . - 27 Titre : The intersection and developmental trajectory of morning cortisol and testosterone in autistic and neurotypical youth Type de document : Texte imprimé et/ou numérique Auteurs : Trey MCGONIGLE, Auteur ; Rachael A MUSCATELLO, Auteur ; Simon VANDEKAR, Auteur ; Rachel CALVOSA, Auteur Article en page(s) : 27 Langues : Anglais (eng) Mots-clés : Humans  Testosterone/metabolism  Female  Male  Hydrocortisone/metabolism  Adolescent  Child  Saliva/metabolism/chemistry  Longitudinal Studies  Autism Spectrum Disorder/metabolism  Autistic Disorder/metabolism  Autism  Cortisol  HPA axis  Hpg  Hormones  Puberty  Testosterone  carried out in accordance with the Code of Ethics of the World Medical  Association (Declaration of Helsinki). The Vanderbilt Institutional Review Board  approved the study. Prior to inclusion in the study, informed written consent and  assent were obtained from all parents and study participants, respectively.  Consent for publication: Not applicable. Competing interests: The authors declare  no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Behavioral endocrinology examines associations between hormone expression, such as testosterone and cortisol, and behavior; both of which have been implicated in autism spectrum disorder (ASD). The overarching aim of the study was to examine the intersection of sex-based (Male, Female), hormonal (testosterone, cortisol), diagnostic (ASD, typically developing, (TD)) and developmental (age, puberty) patterns over four years of a longitudinal study in a well-characterized sample of youth (spanning 10 to 17 years). METHODS: In year 1 (Y1), participants included 140 autistic youth (36 females, 104 males) and 105 TD youth (46 females, 59 males.). For Y4, participants included 83 ASD and 77 TD youth. Immediate waking morning salivary samples were collected for hormone assay. Mixed effects and ordinary linear regression models were used, as well as mediation effects of hormones on behavior. RESULTS: For cortisol, there was a significant diagnosis by sex by age interaction (X(2) = 15.62, df = 3, p = 0.0014, S = 0.2446) showing that autistic females evidence higher morning cortisol that increased over developmental progression compared to TD females. Moreover, ASD males had stunted testosterone growth compared to TD males (Est = 0.1530, p = 0.0130). Regarding biobehavioral associations in year 1, diagnosis (X(2) = 80.72, df = 1, p < 0.0001, S = 0.5704) and cortisol (X(2) = 14.42, df = 3, p = 0.0024, S = 0.2159) were associated with social problems; however, there were no effects for testosterone on diagnosis or a mediation effect on social problems. There was a significant effect of diagnosis on CBCL Aggression score (X(2) = 34.39, df = 1, p < 0.0001, S = 0.3692) independent of hormonal measurements. LIMITATIONS: Despite the large sample, it was not fully representative based on race, ethnicity or intellectual profile. Attrition of the sample is also acknowledged especially between portions of Y2 and Y3 due to the COVID-19 pandemic. Finally, only the immediate morning salivary samples were used due to lower and undetectable concentration levels of testosterone in younger and female children. CONCLUSIONS: Collectively, these findings underscore the need to elucidate the biobehavioral patterns that emerge during the complex adolescent transition for autistic youth to determine how they impact clinical and long-term outcomes. The unique hormonal trajectories may be related to differences in advanced pubertal progression and affective states found in autistic females. En ligne : https://dx.doi.org/10.1186/s13229-025-00658-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=555 [article] The intersection and developmental trajectory of morning cortisol and testosterone in autistic and neurotypical youth [Texte imprimé et/ou numérique] / Trey MCGONIGLE, Auteur ; Rachael A MUSCATELLO, Auteur ; Simon VANDEKAR, Auteur ; Rachel CALVOSA, Auteur . - 27. Langues : Anglais (eng) in Molecular Autism > 16 (2025) . - 27 Mots-clés : Humans  Testosterone/metabolism  Female  Male  Hydrocortisone/metabolism  Adolescent  Child  Saliva/metabolism/chemistry  Longitudinal Studies  Autism Spectrum Disorder/metabolism  Autistic Disorder/metabolism  Autism  Cortisol  HPA axis  Hpg  Hormones  Puberty  Testosterone  carried out in accordance with the Code of Ethics of the World Medical  Association (Declaration of Helsinki). The Vanderbilt Institutional Review Board  approved the study. Prior to inclusion in the study, informed written consent and  assent were obtained from all parents and study participants, respectively.  Consent for publication: Not applicable. Competing interests: The authors declare  no competing interests. Index. décimale : PER Périodiques Résumé : BACKGROUND: Behavioral endocrinology examines associations between hormone expression, such as testosterone and cortisol, and behavior; both of which have been implicated in autism spectrum disorder (ASD). The overarching aim of the study was to examine the intersection of sex-based (Male, Female), hormonal (testosterone, cortisol), diagnostic (ASD, typically developing, (TD)) and developmental (age, puberty) patterns over four years of a longitudinal study in a well-characterized sample of youth (spanning 10 to 17 years). METHODS: In year 1 (Y1), participants included 140 autistic youth (36 females, 104 males) and 105 TD youth (46 females, 59 males.). For Y4, participants included 83 ASD and 77 TD youth. Immediate waking morning salivary samples were collected for hormone assay. Mixed effects and ordinary linear regression models were used, as well as mediation effects of hormones on behavior. RESULTS: For cortisol, there was a significant diagnosis by sex by age interaction (X(2) = 15.62, df = 3, p = 0.0014, S = 0.2446) showing that autistic females evidence higher morning cortisol that increased over developmental progression compared to TD females. Moreover, ASD males had stunted testosterone growth compared to TD males (Est = 0.1530, p = 0.0130). Regarding biobehavioral associations in year 1, diagnosis (X(2) = 80.72, df = 1, p < 0.0001, S = 0.5704) and cortisol (X(2) = 14.42, df = 3, p = 0.0024, S = 0.2159) were associated with social problems; however, there were no effects for testosterone on diagnosis or a mediation effect on social problems. There was a significant effect of diagnosis on CBCL Aggression score (X(2) = 34.39, df = 1, p < 0.0001, S = 0.3692) independent of hormonal measurements. LIMITATIONS: Despite the large sample, it was not fully representative based on race, ethnicity or intellectual profile. Attrition of the sample is also acknowledged especially between portions of Y2 and Y3 due to the COVID-19 pandemic. Finally, only the immediate morning salivary samples were used due to lower and undetectable concentration levels of testosterone in younger and female children. CONCLUSIONS: Collectively, these findings underscore the need to elucidate the biobehavioral patterns that emerge during the complex adolescent transition for autistic youth to determine how they impact clinical and long-term outcomes. The unique hormonal trajectories may be related to differences in advanced pubertal progression and affective states found in autistic females. En ligne : https://dx.doi.org/10.1186/s13229-025-00658-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=555

Biobehavioral mechanisms underlying testosterone and mood relationships in peripubertal female adolescents / Elizabeth ANDERSEN in Development and Psychopathology, 36-4 (October 2024)  

Public ISBD [article]  inDevelopment and Psychopathology > 36-4 (October 2024) . - p.1638-1652 Titre : Biobehavioral mechanisms underlying testosterone and mood relationships in peripubertal female adolescents Type de document : Texte imprimé et/ou numérique Auteurs : Elizabeth ANDERSEN, Auteur ; Julianna PRIM, Auteur ; Alana CAMPBELL, Auteur ; Crystal SCHILLER, Auteur ; Kayla BARESICH, Auteur ; Susan GIRDLER, Auteur Article en page(s) : p.1638-1652 Langues : Anglais (eng) Mots-clés : EEG  negative affect  peripuberty  stress  testosterone Index. décimale : PER Périodiques Résumé : The pubertal transition is characterized by pronounced sex hormone fluctuation, refinement of affective neural circuitry, and an increased risk of depression in female adolescents. Sex hormones, including testosterone, exert modulatory effects on frontal-limbic brain networks and are associated with emotion dysregulation and depressive symptoms. Weekly changes in hormones predict affective symptoms in peripubertal female adolescents, particularly in the context of stress; however, the biobehavioral mechanisms underlying hormone change and mood relationships during the pubertal transition have yet to be determined and was the objective of the present study. Forty-three peripubertal female adolescents (ages 11-14) collected 8-weekly salivary hormone (estrone, testosterone) samples and mood assessments to evaluate hormone-mood relationships, followed by a biobehavioral testing session with psychosocial stress and EEG. Within-person correlations between weekly hormone changes and corresponding mood were performed to determine individual differences in mood sensitivity to weekly hormone change. Increased frontal theta activity indexing emotion reactivity, reduced cortisol reactivity, and reduced vagal efficiency predicted the strength of the relationship between testosterone and mood. Further, testosterone-sensitivity strength was associated with the enhancement of negative affect following stress testing. Results identify divergent frontal theta and stress responses as potential biobehavioral mechanisms underlying mood sensitivity to peripubertal testosterone fluctuation. En ligne : https://dx.doi.org/10.1017/S0954579423000937 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=539 [article] Biobehavioral mechanisms underlying testosterone and mood relationships in peripubertal female adolescents [Texte imprimé et/ou numérique] / Elizabeth ANDERSEN, Auteur ; Julianna PRIM, Auteur ; Alana CAMPBELL, Auteur ; Crystal SCHILLER, Auteur ; Kayla BARESICH, Auteur ; Susan GIRDLER, Auteur . - p.1638-1652. Langues : Anglais (eng) in Development and Psychopathology > 36-4 (October 2024) . - p.1638-1652 Mots-clés : EEG  negative affect  peripuberty  stress  testosterone Index. décimale : PER Périodiques Résumé : The pubertal transition is characterized by pronounced sex hormone fluctuation, refinement of affective neural circuitry, and an increased risk of depression in female adolescents. Sex hormones, including testosterone, exert modulatory effects on frontal-limbic brain networks and are associated with emotion dysregulation and depressive symptoms. Weekly changes in hormones predict affective symptoms in peripubertal female adolescents, particularly in the context of stress; however, the biobehavioral mechanisms underlying hormone change and mood relationships during the pubertal transition have yet to be determined and was the objective of the present study. Forty-three peripubertal female adolescents (ages 11-14) collected 8-weekly salivary hormone (estrone, testosterone) samples and mood assessments to evaluate hormone-mood relationships, followed by a biobehavioral testing session with psychosocial stress and EEG. Within-person correlations between weekly hormone changes and corresponding mood were performed to determine individual differences in mood sensitivity to weekly hormone change. Increased frontal theta activity indexing emotion reactivity, reduced cortisol reactivity, and reduced vagal efficiency predicted the strength of the relationship between testosterone and mood. Further, testosterone-sensitivity strength was associated with the enhancement of negative affect following stress testing. Results identify divergent frontal theta and stress responses as potential biobehavioral mechanisms underlying mood sensitivity to peripubertal testosterone fluctuation. En ligne : https://dx.doi.org/10.1017/S0954579423000937 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=539

Developmental vitamin D deficiency increases foetal exposure to testosterone / Asad Amanat ALI in Molecular Autism, 11 (2020)  

Public ISBD [article]  inMolecular Autism > 11 (2020) Titre : Developmental vitamin D deficiency increases foetal exposure to testosterone Type de document : Texte imprimé et/ou numérique Auteurs : Asad Amanat ALI, Auteur ; Xiaoying CUI, Auteur ; Renata Aparecida Nedel PERTILE, Auteur ; Xiang LI, Auteur ; Gregory MEDLEY, Auteur ; Suzanne Adele ALEXANDER, Auteur ; Andrew J. O. WHITEHOUSE, Auteur ; John Joseph MCGRATH, Auteur ; Darryl Walter EYLES, Auteur Langues : Anglais (eng) Mots-clés : Animal model  Aromatase  Autism  Developmental vitamin D deficiency  Methylation  Testosterone Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a group of neurodevelopmental disorders which are more common in males. The 'prenatal sex steroid' hypothesis links excessive sex-steroid exposure during foetal life with the behavioural differences observed in ASD. However, the reason why sex steroid exposure may be excessive remains unclear. Epidemiological studies have identified several environmental risk factors associated with ASD, including developmental vitamin D (DVD) deficiency. We have demonstrated in an animal model that DVD-deficiency is associated with a hyper-inflammatory response in placentas from male but not female foetuses. Vitamin D also regulates the expression of several steroidogenic enzymes in vitro. Therefore using this animal model, we have examined whether DVD-deficiency leads to increased sex-steroid levels in both the maternal and foetal compartments. METHODS: Female rats are fed a vitamin D deficient diet from 6 weeks before mating until tissue collection at embryonic day 18. We examined the levels of testosterone, androstenedione and corticosterone in maternal plasma, foetal brains and amniotic fluid. We further examined gene expressions of steroidogenic enzymes and DNA methylation of aromatase promoters in foetal brains as a potential molecular mechanism regulating testosterone expression. RESULTS: We show that DVD-deficiency increases testosterone levels in maternal blood. We also show elevated levels of testosterone and androstenedione in the amniotic fluid of female but not male DVD-deficient foetuses. Testosterone levels were also elevated in DVD-deficient male brains. Vitamin D, like other steroid-related hormones, regulates gene expression via methylation. Therefore we examined whether the significant elevation in testosterone in male brains was due to such a potential gene-silencing mechanism. We show that the promoter of aromatase was hyper-methylated compared to male controls. LIMITATIONS: A reduction in aromatase, in addition to causing excessive testosterone, could also lead to a reduction in estradiol which was not examined here. CONCLUSIONS: This study is the first to show how an epidemiologically established environmental risk factor for ASD may selectively elevate testosterone in male embryonic brains. These findings provide further mechanistic support for the prenatal sex steroid theory of ASD. En ligne : http://dx.doi.org/10.1186/s13229-020-00399-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=438 [article] Developmental vitamin D deficiency increases foetal exposure to testosterone [Texte imprimé et/ou numérique] / Asad Amanat ALI, Auteur ; Xiaoying CUI, Auteur ; Renata Aparecida Nedel PERTILE, Auteur ; Xiang LI, Auteur ; Gregory MEDLEY, Auteur ; Suzanne Adele ALEXANDER, Auteur ; Andrew J. O. WHITEHOUSE, Auteur ; John Joseph MCGRATH, Auteur ; Darryl Walter EYLES, Auteur. Langues : Anglais (eng) in Molecular Autism > 11 (2020) Mots-clés : Animal model  Aromatase  Autism  Developmental vitamin D deficiency  Methylation  Testosterone Index. décimale : PER Périodiques Résumé : BACKGROUND: Autism spectrum disorder (ASD) is a group of neurodevelopmental disorders which are more common in males. The 'prenatal sex steroid' hypothesis links excessive sex-steroid exposure during foetal life with the behavioural differences observed in ASD. However, the reason why sex steroid exposure may be excessive remains unclear. Epidemiological studies have identified several environmental risk factors associated with ASD, including developmental vitamin D (DVD) deficiency. We have demonstrated in an animal model that DVD-deficiency is associated with a hyper-inflammatory response in placentas from male but not female foetuses. Vitamin D also regulates the expression of several steroidogenic enzymes in vitro. Therefore using this animal model, we have examined whether DVD-deficiency leads to increased sex-steroid levels in both the maternal and foetal compartments. METHODS: Female rats are fed a vitamin D deficient diet from 6 weeks before mating until tissue collection at embryonic day 18. We examined the levels of testosterone, androstenedione and corticosterone in maternal plasma, foetal brains and amniotic fluid. We further examined gene expressions of steroidogenic enzymes and DNA methylation of aromatase promoters in foetal brains as a potential molecular mechanism regulating testosterone expression. RESULTS: We show that DVD-deficiency increases testosterone levels in maternal blood. We also show elevated levels of testosterone and androstenedione in the amniotic fluid of female but not male DVD-deficient foetuses. Testosterone levels were also elevated in DVD-deficient male brains. Vitamin D, like other steroid-related hormones, regulates gene expression via methylation. Therefore we examined whether the significant elevation in testosterone in male brains was due to such a potential gene-silencing mechanism. We show that the promoter of aromatase was hyper-methylated compared to male controls. LIMITATIONS: A reduction in aromatase, in addition to causing excessive testosterone, could also lead to a reduction in estradiol which was not examined here. CONCLUSIONS: This study is the first to show how an epidemiologically established environmental risk factor for ASD may selectively elevate testosterone in male embryonic brains. These findings provide further mechanistic support for the prenatal sex steroid theory of ASD. En ligne : http://dx.doi.org/10.1186/s13229-020-00399-2 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=438

Do testosterone and cortisol levels moderate aggressive responses to peer victimization in adolescents? / Izaskun ORUE in Development and Psychopathology, 36-2 (May 2024)  

Public ISBD [article]  inDevelopment and Psychopathology > 36-2 (May 2024) . - p.624-635 Titre : Do testosterone and cortisol levels moderate aggressive responses to peer victimization in adolescents? Type de document : Texte imprimé et/ou numérique Auteurs : Izaskun ORUE, Auteur Article en page(s) : p.624-635 Langues : Anglais (eng) Mots-clés : adolescents  aggressive behavior  cortisol  testosterone  victimization Index. décimale : PER Périodiques Résumé : Aggressive reactions to peer victimization may be tempered by hormone levels. Grounded on the dualhormone hypothesis (DHH), which proposes that testosterone (T) is associated with aggressive behavior only when cortisol (C) is low, this study assessed whether the combination of T and C moderated adolescents' aggressive responses to peer victimization. The study involved 577 adolescents (50.4% girls, aged 12-17 years), who completed measures of online and offline victimization and perpetration of aggressive behavior in three waves over the course of one year. Moreover, they provided salivary samples to measure T and C levels. Multilevel analyses showed a three-way interaction between T, C, and victimization levels for both online and offline aggressive behaviors. In both cases, the adolescents with high T and high C or low T and low C responded with more aggressive behaviors when victimized or provoked by peers. The T/C ratio was only associated with aggressive behavior in the girls' sample. The results are opposite to those predicted by the DHH, but they are consistent with the findings of other studies that examined aggressive behaviors as reactions to provocations. These results suggest that some combinations of T and C predict higher aggressive reactions to peer victimization. En ligne : https://dx.doi.org/10.1017/S0954579422001456 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=528 [article] Do testosterone and cortisol levels moderate aggressive responses to peer victimization in adolescents? [Texte imprimé et/ou numérique] / Izaskun ORUE, Auteur . - p.624-635. Langues : Anglais (eng) in Development and Psychopathology > 36-2 (May 2024) . - p.624-635 Mots-clés : adolescents  aggressive behavior  cortisol  testosterone  victimization Index. décimale : PER Périodiques Résumé : Aggressive reactions to peer victimization may be tempered by hormone levels. Grounded on the dualhormone hypothesis (DHH), which proposes that testosterone (T) is associated with aggressive behavior only when cortisol (C) is low, this study assessed whether the combination of T and C moderated adolescents' aggressive responses to peer victimization. The study involved 577 adolescents (50.4% girls, aged 12-17 years), who completed measures of online and offline victimization and perpetration of aggressive behavior in three waves over the course of one year. Moreover, they provided salivary samples to measure T and C levels. Multilevel analyses showed a three-way interaction between T, C, and victimization levels for both online and offline aggressive behaviors. In both cases, the adolescents with high T and high C or low T and low C responded with more aggressive behaviors when victimized or provoked by peers. The T/C ratio was only associated with aggressive behavior in the girls' sample. The results are opposite to those predicted by the DHH, but they are consistent with the findings of other studies that examined aggressive behaviors as reactions to provocations. These results suggest that some combinations of T and C predict higher aggressive reactions to peer victimization. En ligne : https://dx.doi.org/10.1017/S0954579422001456 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=528

Salivary testosterone in male and female youth with and without autism spectrum disorder: considerations of development, sex, and diagnosis / Rachael A. MUSCATELLO in Molecular Autism, 13 (2022)  

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Sex-specific associations between umbilical cord blood testosterone levels and language delay in early childhood / Andrew J. O. WHITEHOUSE in Journal of Child Psychology and Psychiatry, 53-7 (July 2012)  

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Associations Between the 2nd to 4th Digit Ratio and Autism Spectrum Disorder in Population-Based Samples of Boys and Girls: Findings from the Study to Explore Early Development / Laura A. SCHIEVE in Journal of Autism and Developmental Disorders, 48-7 (July 2018)  

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Effects of oxytocin administration on salivary sex hormone levels in autistic and neurotypical women / Tanya L. PROCYSHYN in Molecular Autism, 11 (2020)  

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Latéralisation cérébrale chez l’enfant hyperactif / Galo PESANTEZ in Evolutions psychomotrices, 22-89 (Octobre 2010)

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