427 recherche sur le mot-clé 'Male'

Elevated levels of cortisol, brain-derived neurotropic factor and tissue plasminogen activator in male children with autism spectrum disorder / H. BOZKURT in Autism Research, 14-10 (October 2021)  

Public ISBD [article]  inAutism Research > 14-10 (October 2021) . - p.2078-2084 Titre : Elevated levels of cortisol, brain-derived neurotropic factor and tissue plasminogen activator in male children with autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : H. BOZKURT, Auteur ; ? ?IM?EK, Auteur ; S. ?AHIN, Auteur Article en page(s) : p.2078-2084 Langues : Anglais (eng) Mots-clés : Adolescent  Autism Spectrum Disorder  Biomarkers  Brain  Brain-Derived Neurotrophic Factor  Child  Child, Preschool  Humans  Hydrocortisone  Male  Tissue Plasminogen Activator  autism  brain-derived neurotrophic factor  cortisol Index. décimale : PER Périodiques Résumé : Several studies demonstrated biological effects of cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) on human metabolism and central nervous system. Our study investigated the serum levels of tPA along with BDNF and cortisol in children with autism spectrum disorder (ASD). Thirty three male children with ASD ranging in age from 2 to 15?years were selected for the study group and 27 age-matched healthy male children were selected for the control group. The ASD severity was determined by the score on the Autism Behavior Checklist (ABC). The mean cortisol levels for the study group and the control group were 79.1?±?30.2 ng/ml and 60.0?±?25.1 ng/ml, respectively. The mean BDNF levels for the study group and the control group were 5.9?±?2.8 ng/ml and 3.7?±?1.8 ng/ml, respectively. The mean tPA levels for the study group and the control group were 32.9?±?18.5 ng/ml and 25.5?±?15.1 ng/ml, respectively. Cortisol, BDNF and tPA levels were significantly higher in the study group compared to the control group (p??0.05). It may be suggested that elevations may indicate a role in the pathogenesis of ASD or it may be the case that ASD may alter the levels or pathways of these metabolic factors. LAY SUMMARY: The underlying mechanism or a specific metabolic target relevant to autism spectrum disorder (ASD) has not yet been identified. Cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) have biological effects on neuroplasticity but little is known about the role of cortisol and tPA-BDNF pathway in ASD. In the present study focused on male children with ASD, we have found higher blood levels of cortisol, BDNF and tPA than their healthy peers. This is the first clinical study to evaluate the serum tPA levels along with BDNF and cortisol in ASD. The results suggest that several neurotrophic and other related markers should be born in mind while examining children with ASD. En ligne : http://dx.doi.org/10.1002/aur.2582 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450 [article] Elevated levels of cortisol, brain-derived neurotropic factor and tissue plasminogen activator in male children with autism spectrum disorder [Texte imprimé et/ou numérique] / H. BOZKURT, Auteur ; ? ?IM?EK, Auteur ; S. ?AHIN, Auteur . - p.2078-2084. Langues : Anglais (eng) in Autism Research > 14-10 (October 2021) . - p.2078-2084 Mots-clés : Adolescent  Autism Spectrum Disorder  Biomarkers  Brain  Brain-Derived Neurotrophic Factor  Child  Child, Preschool  Humans  Hydrocortisone  Male  Tissue Plasminogen Activator  autism  brain-derived neurotrophic factor  cortisol Index. décimale : PER Périodiques Résumé : Several studies demonstrated biological effects of cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) on human metabolism and central nervous system. Our study investigated the serum levels of tPA along with BDNF and cortisol in children with autism spectrum disorder (ASD). Thirty three male children with ASD ranging in age from 2 to 15?years were selected for the study group and 27 age-matched healthy male children were selected for the control group. The ASD severity was determined by the score on the Autism Behavior Checklist (ABC). The mean cortisol levels for the study group and the control group were 79.1?±?30.2 ng/ml and 60.0?±?25.1 ng/ml, respectively. The mean BDNF levels for the study group and the control group were 5.9?±?2.8 ng/ml and 3.7?±?1.8 ng/ml, respectively. The mean tPA levels for the study group and the control group were 32.9?±?18.5 ng/ml and 25.5?±?15.1 ng/ml, respectively. Cortisol, BDNF and tPA levels were significantly higher in the study group compared to the control group (p??0.05). It may be suggested that elevations may indicate a role in the pathogenesis of ASD or it may be the case that ASD may alter the levels or pathways of these metabolic factors. LAY SUMMARY: The underlying mechanism or a specific metabolic target relevant to autism spectrum disorder (ASD) has not yet been identified. Cortisol, brain-derived neurotrophic factor (BDNF) and tissue plasminogen activator (tPA) have biological effects on neuroplasticity but little is known about the role of cortisol and tPA-BDNF pathway in ASD. In the present study focused on male children with ASD, we have found higher blood levels of cortisol, BDNF and tPA than their healthy peers. This is the first clinical study to evaluate the serum tPA levels along with BDNF and cortisol in ASD. The results suggest that several neurotrophic and other related markers should be born in mind while examining children with ASD. En ligne : http://dx.doi.org/10.1002/aur.2582 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=450

Gazefinder as a clinical supplementary tool for discriminating between autism spectrum disorder and typical development in male adolescents and adults / T. FUJIOKA in Molecular Autism, 7 (2016)  

Public ISBD [article]  inMolecular Autism > 7 (2016) . - 19p. Titre : Gazefinder as a clinical supplementary tool for discriminating between autism spectrum disorder and typical development in male adolescents and adults Type de document : Texte imprimé et/ou numérique Auteurs : T. FUJIOKA, Auteur ; K. INOHARA, Auteur ; Y. OKAMOTO, Auteur ; Y. MASUYA, Auteur ; M. ISHITOBI, Auteur ; Daisuke N. SAITO, Auteur ; M. JUNG, Auteur ; Sumiyoshi ARAI, Auteur ; Y. MATSUMURA, Auteur ; T. X. FUJISAWA, Auteur ; K. NARITA, Auteur ; K. SUZUKI, Auteur ; K. J. TSUCHIYA, Auteur ; N. MORI, Auteur ; T. KATAYAMA, Auteur ; M. SATO, Auteur ; T. MUNESUE, Auteur ; H. OKAZAWA, Auteur ; A. TOMODA, Auteur ; Y. WADA, Auteur ; H. KOSAKA, Auteur Article en page(s) : 19p. Langues : Anglais (eng) Mots-clés : Adolescent  Adult  Area Under Curve  Autism Spectrum Disorder/diagnosis/physiopathology  Case-Control Studies  Discriminant Analysis  Fixation, Ocular/physiology  Humans  Male  Ocular Physiological Phenomena  Photic Stimulation  Psychometrics  ROC Curve  Social Behavior  Time Factors  Autism spectrum disorder  Biological motion  Eye-tracking  Face  Fixation  Gaze abnormality  Geometry Index. décimale : PER Périodiques Résumé : BACKGROUND: Gaze abnormality is a diagnostic criterion for autism spectrum disorder (ASD). However, few easy-to-use clinical tools exist to evaluate the unique eye-gaze patterns of ASD. Recently, we developed Gazefinder, an all-in-one eye-tracking system for early detection of ASD in toddlers. Because abnormal gaze patterns have been documented in various ASD age groups, we predicted that Gazefinder might also detect gaze abnormality in adolescents and adults. In this study, we tested whether Gazefinder could identify unique gaze patterns in adolescents and adults with ASD. METHODS: We measured the percentage of eye fixation time allocated to particular objects depicted in movies (i.e., eyes and mouth in human face movies, upright and inverted biological motion in movies that presented these stimuli simultaneously, and people and geometry in movies that presented these stimuli simultaneously) by male adolescents and adults with ASD (N = 26) and age-matched males with typical development (TD; N = 35). We compared these percentages between the two groups (ASD and TD) and with scores on the social responsiveness scale (SRS). Further, we conducted discriminant analyses to determine if fixation times allocated to particular objects could be used to discriminate between individuals with and without ASD. RESULTS: Compared with the TD group, the ASD group showed significantly less fixation time at locations of salient social information (i.e., eyes in the movie of human faces without lip movement and people in the movie of people and geometry), while there were no significant groupwise differences in the responses to movies of human faces with lip movement or biological motion. In a within-group correlation analysis, a few of the fixation-time items correlated with SRS, although most of them did not. No items significantly correlated with SRS in both ASD and TD groups. The percentage fixation times to eyes and people, which exhibited large effect sizes for the group difference, could differentiate ASD and TD with a sensitivity of 81.0% and a specificity of 80.0%. CONCLUSIONS: These findings suggest that Gazefinder is potentially a valuable and easy-to-use tool for objectively measuring unique gaze patterns and discriminating between ASD and TD in male adolescents and adults. En ligne : http://dx.doi.org/10.1186/s13229-016-0083-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328 [article] Gazefinder as a clinical supplementary tool for discriminating between autism spectrum disorder and typical development in male adolescents and adults [Texte imprimé et/ou numérique] / T. FUJIOKA, Auteur ; K. INOHARA, Auteur ; Y. OKAMOTO, Auteur ; Y. MASUYA, Auteur ; M. ISHITOBI, Auteur ; Daisuke N. SAITO, Auteur ; M. JUNG, Auteur ; Sumiyoshi ARAI, Auteur ; Y. MATSUMURA, Auteur ; T. X. FUJISAWA, Auteur ; K. NARITA, Auteur ; K. SUZUKI, Auteur ; K. J. TSUCHIYA, Auteur ; N. MORI, Auteur ; T. KATAYAMA, Auteur ; M. SATO, Auteur ; T. MUNESUE, Auteur ; H. OKAZAWA, Auteur ; A. TOMODA, Auteur ; Y. WADA, Auteur ; H. KOSAKA, Auteur . - 19p. Langues : Anglais (eng) in Molecular Autism > 7 (2016) . - 19p. Mots-clés : Adolescent  Adult  Area Under Curve  Autism Spectrum Disorder/diagnosis/physiopathology  Case-Control Studies  Discriminant Analysis  Fixation, Ocular/physiology  Humans  Male  Ocular Physiological Phenomena  Photic Stimulation  Psychometrics  ROC Curve  Social Behavior  Time Factors  Autism spectrum disorder  Biological motion  Eye-tracking  Face  Fixation  Gaze abnormality  Geometry Index. décimale : PER Périodiques Résumé : BACKGROUND: Gaze abnormality is a diagnostic criterion for autism spectrum disorder (ASD). However, few easy-to-use clinical tools exist to evaluate the unique eye-gaze patterns of ASD. Recently, we developed Gazefinder, an all-in-one eye-tracking system for early detection of ASD in toddlers. Because abnormal gaze patterns have been documented in various ASD age groups, we predicted that Gazefinder might also detect gaze abnormality in adolescents and adults. In this study, we tested whether Gazefinder could identify unique gaze patterns in adolescents and adults with ASD. METHODS: We measured the percentage of eye fixation time allocated to particular objects depicted in movies (i.e., eyes and mouth in human face movies, upright and inverted biological motion in movies that presented these stimuli simultaneously, and people and geometry in movies that presented these stimuli simultaneously) by male adolescents and adults with ASD (N = 26) and age-matched males with typical development (TD; N = 35). We compared these percentages between the two groups (ASD and TD) and with scores on the social responsiveness scale (SRS). Further, we conducted discriminant analyses to determine if fixation times allocated to particular objects could be used to discriminate between individuals with and without ASD. RESULTS: Compared with the TD group, the ASD group showed significantly less fixation time at locations of salient social information (i.e., eyes in the movie of human faces without lip movement and people in the movie of people and geometry), while there were no significant groupwise differences in the responses to movies of human faces with lip movement or biological motion. In a within-group correlation analysis, a few of the fixation-time items correlated with SRS, although most of them did not. No items significantly correlated with SRS in both ASD and TD groups. The percentage fixation times to eyes and people, which exhibited large effect sizes for the group difference, could differentiate ASD and TD with a sensitivity of 81.0% and a specificity of 80.0%. CONCLUSIONS: These findings suggest that Gazefinder is potentially a valuable and easy-to-use tool for objectively measuring unique gaze patterns and discriminating between ASD and TD in male adolescents and adults. En ligne : http://dx.doi.org/10.1186/s13229-016-0083-y Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=328

Language and Aggressive Behaviors in Male and Female Youth with Autism Spectrum Disorder / E. NEUHAUS in Journal of Autism and Developmental Disorders, 52-1 (January 2022)  

Public ISBD [article]  inJournal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.454-462 Titre : Language and Aggressive Behaviors in Male and Female Youth with Autism Spectrum Disorder Type de document : Texte imprimé et/ou numérique Auteurs : E. NEUHAUS, Auteur ; V. Y. KANG, Auteur ; A. KRESSE, Auteur ; S. CORRIGAN, Auteur ; Elizabeth H. AYLWARD, Auteur ; Raphael BERNIER, Auteur ; Susan Y. BOOKHEIMER, Auteur ; Mirella DAPRETTO, Auteur ; A. JACK, Auteur ; S. JESTE, Auteur ; J. C. MCPARTLAND, Auteur ; J. D. VAN HORN, Auteur ; Kevin A. PELPHREY, Auteur ; S. J. WEBB, Auteur Article en page(s) : p.454-462 Langues : Anglais (eng) Mots-clés : Adolescent  Aggression  Autism Spectrum Disorder  Child  Communication  Female  Humans  Language  Male  Asd  Autism  Externalizing behaviors  Gender  Sex differences Index. décimale : PER Périodiques Résumé : Aggressive behaviors are common among youth with autism spectrum disorder (ASD) and correlate with pervasive social-emotional difficulties. Communication skill is an important correlate of disruptive behavior in typical development, and clarification of links between communication and aggression in ASD may inform intervention methods. We investigate child/family factors and communication in relation to aggression among 145 individuals with ASD (65 female; ages 8-17 years). Overall, more severe aggression was associated with younger age, lower family income, and difficulties with communication skills. However, this pattern of results was driven by males, and aggression was unrelated to child or family characteristics for females. Future work should incorporate these predictors in conjunction with broader contextual factors to understand aggressive behavior in females with ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04773-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455 [article] Language and Aggressive Behaviors in Male and Female Youth with Autism Spectrum Disorder [Texte imprimé et/ou numérique] / E. NEUHAUS, Auteur ; V. Y. KANG, Auteur ; A. KRESSE, Auteur ; S. CORRIGAN, Auteur ; Elizabeth H. AYLWARD, Auteur ; Raphael BERNIER, Auteur ; Susan Y. BOOKHEIMER, Auteur ; Mirella DAPRETTO, Auteur ; A. JACK, Auteur ; S. JESTE, Auteur ; J. C. MCPARTLAND, Auteur ; J. D. VAN HORN, Auteur ; Kevin A. PELPHREY, Auteur ; S. J. WEBB, Auteur . - p.454-462. Langues : Anglais (eng) in Journal of Autism and Developmental Disorders > 52-1 (January 2022) . - p.454-462 Mots-clés : Adolescent  Aggression  Autism Spectrum Disorder  Child  Communication  Female  Humans  Language  Male  Asd  Autism  Externalizing behaviors  Gender  Sex differences Index. décimale : PER Périodiques Résumé : Aggressive behaviors are common among youth with autism spectrum disorder (ASD) and correlate with pervasive social-emotional difficulties. Communication skill is an important correlate of disruptive behavior in typical development, and clarification of links between communication and aggression in ASD may inform intervention methods. We investigate child/family factors and communication in relation to aggression among 145 individuals with ASD (65 female; ages 8-17 years). Overall, more severe aggression was associated with younger age, lower family income, and difficulties with communication skills. However, this pattern of results was driven by males, and aggression was unrelated to child or family characteristics for females. Future work should incorporate these predictors in conjunction with broader contextual factors to understand aggressive behavior in females with ASD. En ligne : http://dx.doi.org/10.1007/s10803-020-04773-0 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=455

Phenotypic differences between female and male individuals with suspicion of autism spectrum disorder / Sanna STROTH in Molecular Autism, 13 (2022)  

Public ISBD [article]  inMolecular Autism > 13 (2022) . - 11 p. Titre : Phenotypic differences between female and male individuals with suspicion of autism spectrum disorder Type de document : Texte imprimé et/ou numérique Auteurs : Sanna STROTH, Auteur ; Johannes TAUSCHER, Auteur ; Nicole WOLFF, Auteur ; Charlotte KÜPPER, Auteur ; Luise POUSTKA, Auteur ; Stefan ROEPKE, Auteur ; Veit ROESSNER, Auteur ; Dominik HEIDER, Auteur ; Inge KAMP-BECKER, Auteur Article en page(s) : 11 p. Langues : Anglais (eng) Mots-clés : Affect  Autism Spectrum Disorder/diagnosis  Autistic Disorder  Female  Humans  Intellectual Disability/diagnosis  Male  Adi-r  Ados  Asd  Diagnostics  Female autism  Phenotype  Sex Index. décimale : PER Périodiques Résumé : BACKGROUND: Although autism spectrum disorder (ASD) is a common developmental disorder, our knowledge about a behavioral and neurobiological female phenotype is still scarce. As the conceptualization and understanding of ASD are mainly based on the investigation of male individuals, females with ASD may not be adequately identified by routine clinical diagnostics. The present machine learning approach aimed to identify diagnostic information from the Autism Diagnostic Observation Schedule (ADOS) that discriminates best between ASD and non-ASD in females and males. METHODS: Random forests (RF) were used to discover patterns of symptoms in diagnostic data from the ADOS (modules 3 and 4) in 1057 participants with ASD (18.1% female) and 1230 participants with non-ASD (17.9% % female). Predictive performances of reduced feature models were explored and compared between females and males without intellectual disabilities. RESULTS: Reduced feature models relied on considerably fewer features from the ADOS in females compared to males, while still yielding similar classification performance (e.g., sensitivity, specificity). LIMITATIONS: As in previous studies, the current sample of females with ASD is smaller than the male sample and thus, females may still be underrepresented, limiting the statistical power to detect small to moderate effects. CONCLUSION: Our results do not suggest the need for new or altered diagnostic algorithms for females with ASD. Although we identified some phenotypic differences between females and males, the existing diagnostic tools seem to sufficiently capture the core autistic features in both groups. En ligne : http://dx.doi.org/10.1186/s13229-022-00491-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=477 [article] Phenotypic differences between female and male individuals with suspicion of autism spectrum disorder [Texte imprimé et/ou numérique] / Sanna STROTH, Auteur ; Johannes TAUSCHER, Auteur ; Nicole WOLFF, Auteur ; Charlotte KÜPPER, Auteur ; Luise POUSTKA, Auteur ; Stefan ROEPKE, Auteur ; Veit ROESSNER, Auteur ; Dominik HEIDER, Auteur ; Inge KAMP-BECKER, Auteur . - 11 p. Langues : Anglais (eng) in Molecular Autism > 13 (2022) . - 11 p. Mots-clés : Affect  Autism Spectrum Disorder/diagnosis  Autistic Disorder  Female  Humans  Intellectual Disability/diagnosis  Male  Adi-r  Ados  Asd  Diagnostics  Female autism  Phenotype  Sex Index. décimale : PER Périodiques Résumé : BACKGROUND: Although autism spectrum disorder (ASD) is a common developmental disorder, our knowledge about a behavioral and neurobiological female phenotype is still scarce. As the conceptualization and understanding of ASD are mainly based on the investigation of male individuals, females with ASD may not be adequately identified by routine clinical diagnostics. The present machine learning approach aimed to identify diagnostic information from the Autism Diagnostic Observation Schedule (ADOS) that discriminates best between ASD and non-ASD in females and males. METHODS: Random forests (RF) were used to discover patterns of symptoms in diagnostic data from the ADOS (modules 3 and 4) in 1057 participants with ASD (18.1% female) and 1230 participants with non-ASD (17.9% % female). Predictive performances of reduced feature models were explored and compared between females and males without intellectual disabilities. RESULTS: Reduced feature models relied on considerably fewer features from the ADOS in females compared to males, while still yielding similar classification performance (e.g., sensitivity, specificity). LIMITATIONS: As in previous studies, the current sample of females with ASD is smaller than the male sample and thus, females may still be underrepresented, limiting the statistical power to detect small to moderate effects. CONCLUSION: Our results do not suggest the need for new or altered diagnostic algorithms for females with ASD. Although we identified some phenotypic differences between females and males, the existing diagnostic tools seem to sufficiently capture the core autistic features in both groups. En ligne : http://dx.doi.org/10.1186/s13229-022-00491-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=477

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)  

Public ISBD [article]  inMolecular Autism > 13 (2022) . - 37 p. Titre : Salivary testosterone in male and female youth with and without autism spectrum disorder: considerations of development, sex, and diagnosis Type de document : Texte imprimé et/ou numérique Auteurs : Rachael A. MUSCATELLO, Auteur ; Emma RAFATJOO, Auteur ; Karan K. MIRPURI, Auteur ; Ahra KIM, Auteur ; Simon VANDEKAR, Auteur ; Blythe A. CORBETT, Auteur Article en page(s) : 37 p. Langues : Anglais (eng) Mots-clés : Autism Spectrum Disorder/diagnosis  Autistic Disorder  Female  Humans  Longitudinal Studies  Male  Sexual Development  Testosterone  Adolescence  Androgen  Autism  Pubertal development Index. décimale : PER Périodiques Résumé : BACKGROUND: Puberty is characterized by significant physical, hormonal, and psychological changes, which may be especially challenging for individuals with autism spectrum disorder (ASD). Although the etiology of ASD remains uncertain, studies suggest imbalances in hormones, such as testosterone, may modulate the autism phenotype. While differences in fetal and postnatal testosterone have been reported, there is limited literature regarding testosterone variations during adolescence in ASD. We investigated morning salivary testosterone levels in youth with ASD and typical development (TD) to explore hypothesized differences, expecting elevated hormonal levels in ASD compared to TD. METHODS: Youth with ASD (n=140) and TD (n=104), ages 10 to 13 years, were enrolled as part of a longitudinal study on pubertal development. Pubertal stage was determined by gold standard physical examination, and salivary testosterone was collected in the morning immediately upon waking and 30 min after waking and averaged across 3 days. Diagnostic (ASD/TD) and sex (male/female) differences, as well as interactions with age and puberty, were examined using robust linear mixed effect models. RESULTS: Youth with ASD showed significantly elevated testosterone concentrations compared to same-age TD peers. After the inclusion of natural cubic splines to account for nonlinearity in age, a significant age-by-sex interaction emerged with distinct developmental slopes for males and females. At younger ages, females had higher testosterone, until about 11.5 years of age, when levels began to plateau, while male testosterone concentrations continued to rapidly increase and surpass females. As expected, more advanced pubertal development was associated with elevated testosterone. In contrast, no significant effect of parent-reported social communication symptoms was observed. LIMITATIONS: Limitations include an unequal sex distribution, non-representative sample (e.g., cognition and race/ethnicity), and inability to examine afternoon/evening testosterone due to detection limits. CONCLUSIONS: Testosterone may play a unique role in the presentation of ASD, especially during periods of dynamic hormonal changes including puberty. Inherent developmental (age, puberty) and sex-based (male, female) factors play a more prominent role in changes in testosterone levels during adolescence. Even so, future research is warranted to determine the differential expression and impact of exposure to excess testosterone during the pubertal transition for youth with ASD. En ligne : http://dx.doi.org/10.1186/s13229-022-00515-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491 [article] Salivary testosterone in male and female youth with and without autism spectrum disorder: considerations of development, sex, and diagnosis [Texte imprimé et/ou numérique] / Rachael A. MUSCATELLO, Auteur ; Emma RAFATJOO, Auteur ; Karan K. MIRPURI, Auteur ; Ahra KIM, Auteur ; Simon VANDEKAR, Auteur ; Blythe A. CORBETT, Auteur . - 37 p. Langues : Anglais (eng) in Molecular Autism > 13 (2022) . - 37 p. Mots-clés : Autism Spectrum Disorder/diagnosis  Autistic Disorder  Female  Humans  Longitudinal Studies  Male  Sexual Development  Testosterone  Adolescence  Androgen  Autism  Pubertal development Index. décimale : PER Périodiques Résumé : BACKGROUND: Puberty is characterized by significant physical, hormonal, and psychological changes, which may be especially challenging for individuals with autism spectrum disorder (ASD). Although the etiology of ASD remains uncertain, studies suggest imbalances in hormones, such as testosterone, may modulate the autism phenotype. While differences in fetal and postnatal testosterone have been reported, there is limited literature regarding testosterone variations during adolescence in ASD. We investigated morning salivary testosterone levels in youth with ASD and typical development (TD) to explore hypothesized differences, expecting elevated hormonal levels in ASD compared to TD. METHODS: Youth with ASD (n=140) and TD (n=104), ages 10 to 13 years, were enrolled as part of a longitudinal study on pubertal development. Pubertal stage was determined by gold standard physical examination, and salivary testosterone was collected in the morning immediately upon waking and 30 min after waking and averaged across 3 days. Diagnostic (ASD/TD) and sex (male/female) differences, as well as interactions with age and puberty, were examined using robust linear mixed effect models. RESULTS: Youth with ASD showed significantly elevated testosterone concentrations compared to same-age TD peers. After the inclusion of natural cubic splines to account for nonlinearity in age, a significant age-by-sex interaction emerged with distinct developmental slopes for males and females. At younger ages, females had higher testosterone, until about 11.5 years of age, when levels began to plateau, while male testosterone concentrations continued to rapidly increase and surpass females. As expected, more advanced pubertal development was associated with elevated testosterone. In contrast, no significant effect of parent-reported social communication symptoms was observed. LIMITATIONS: Limitations include an unequal sex distribution, non-representative sample (e.g., cognition and race/ethnicity), and inability to examine afternoon/evening testosterone due to detection limits. CONCLUSIONS: Testosterone may play a unique role in the presentation of ASD, especially during periods of dynamic hormonal changes including puberty. Inherent developmental (age, puberty) and sex-based (male, female) factors play a more prominent role in changes in testosterone levels during adolescence. Even so, future research is warranted to determine the differential expression and impact of exposure to excess testosterone during the pubertal transition for youth with ASD. En ligne : http://dx.doi.org/10.1186/s13229-022-00515-4 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=491

Testing the extreme male brain hypothesis: Is autism spectrum disorder associated with a more male-typical brain? / L. VAN EIJK in Autism Research, 14-8 (August 2021)  

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Adolescent gender diversity: sociodemographic correlates and mental health outcomes in the general population / Akhgar GHASSABIAN in Journal of Child Psychology and Psychiatry, 63-11 (November 2022)  

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Adults with autism spectrum disorder and the criminal justice system: An investigation of prevalence of contact with the criminal justice system, risk factors and sex differences in a specialist assessment service / Charlotte E. BLACKMORE in Autism, 26-8 (November 2022)  

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Altered medial prefrontal cortex and dorsal raphé activity predict genotype and correlate with abnormal learning behavior in a mouse model of autism-associated 2p16.3 deletion / Rebecca B. HUGHES in Autism Research, 15-4 (April 2022)  

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Altered theta-beta ratio in infancy associates with family history of ADHD and later ADHD-relevant temperamental traits / Jannath BEGUM-ALI in Journal of Child Psychology and Psychiatry, 63-9 (September 2022)  

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