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Search Results (244)

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Keywords = stereotyped behaviors

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10 pages, 729 KiB  
Review
A Literature Review on Pain Management in Women During Medical Procedures: Gaps, Challenges, and Recommendations
by Keren Grinberg and Yael Sela
Medicina 2025, 61(8), 1352; https://doi.org/10.3390/medicina61081352 - 26 Jul 2025
Viewed by 314
Abstract
Background and Objectives: Gender disparities in pain management persist, with women frequently receiving inadequate analgesia despite reporting similar or higher pain levels compared with men. This issue is particularly evident across various medical and gynecological procedures. Materials and Methods: This integrative [...] Read more.
Background and Objectives: Gender disparities in pain management persist, with women frequently receiving inadequate analgesia despite reporting similar or higher pain levels compared with men. This issue is particularly evident across various medical and gynecological procedures. Materials and Methods: This integrative literature review synthesizes recent empirical studies examining gender biases in pain perception and management, focusing specifically on procedural pain in women. It includes an analysis of clinical research, patient-reported outcomes, and healthcare provider behaviors. Results: The findings indicate that unconscious biases, a lack of gender-specific clinical protocols, and prevailing cultural stereotypes contribute to the undertreatment of pain in women during procedures such as intrauterine device insertion and diagnostic hysteroscopy. Additionally, communication gaps between patients and healthcare providers exacerbate these disparities. Conclusions: Addressing gender disparities in pain management necessitates systemic reforms, including the implementation of gender-sensitive clinical guidelines, enhanced provider education, and targeted policy changes. Personalized, gender-informed approaches are essential to improving equity and quality of care in pain treatment. Full article
(This article belongs to the Section Epidemiology & Public Health)
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14 pages, 280 KiB  
Review
Workplace Discrimination Against Pregnant and Postpartum Employees: Links to Well-Being
by Kimberly T. Schneider, Sarah C. Williams and Rory E. Kuhn
Int. J. Environ. Res. Public Health 2025, 22(8), 1160; https://doi.org/10.3390/ijerph22081160 - 22 Jul 2025
Viewed by 671
Abstract
Pregnancy-related discrimination at work is a concern for many employees who navigate the pregnancy and postpartum stages of parenthood while working in the early-to-middle stages of their careers. Although there is legislation prohibiting pregnancy-related discrimination and ensuring accommodations postpartum, empirical evidence indicates many [...] Read more.
Pregnancy-related discrimination at work is a concern for many employees who navigate the pregnancy and postpartum stages of parenthood while working in the early-to-middle stages of their careers. Although there is legislation prohibiting pregnancy-related discrimination and ensuring accommodations postpartum, empirical evidence indicates many pregnant and postpartum employees still experience such behaviors. In this narrative review, we focus on describing the range of behaviors assessed in studies on pregnancy-related discrimination in several cultures, situating the occurrence of discrimination within theoretical frameworks related to stereotypes and gendered expectations. We also review evidence of employees’ postpartum experiences with a focus on the transition back to work, along with breastfeeding challenges related to pumping and storing milk at work. Regarding coping with pregnancy-related workplace discrimination and postpartum challenges during a return to work, we review the importance of social support, including instrumental and emotional support from allies and role models. Full article
(This article belongs to the Special Issue How Reproductive Life Events Influence Women's Mental Health)
26 pages, 540 KiB  
Article
The Aggressive Gender Backlash in Intimate Partner Relationships: A Theoretical Framework and Initial Measurement
by Aristides A. Vara-Horna and Noelia Rodríguez-Espartal
Behav. Sci. 2025, 15(7), 941; https://doi.org/10.3390/bs15070941 - 11 Jul 2025
Viewed by 272
Abstract
This study introduces and validates a novel instrument to measure aggressive gender backlash (AGB), a distinct and underexplored dimension of gender backlash (GB) within intimate partner relationships. Based on the General Aggression Model, a multidimensional scale was developed and tested using data from [...] Read more.
This study introduces and validates a novel instrument to measure aggressive gender backlash (AGB), a distinct and underexplored dimension of gender backlash (GB) within intimate partner relationships. Based on the General Aggression Model, a multidimensional scale was developed and tested using data from 513 Peruvian female microentrepreneurs. Results demonstrate solid evidence of reliability, discriminant validity, and predictive validity across five dimensions: hostility, the withdrawal of support, sabotage/coercion, gender stereotyping, and masculine victimization. The findings reveal that AGB is more prevalent than intimate partner violence against women (IPVAW) and often precedes it. AGB encompasses covert, non-violent behaviors that aim to resist female empowerment, such as emotional sabotage, manipulation, and disqualification, often normalized within relationships. This construct is significantly associated with lower levels of empowerment, increased subordination, emotional morbidity, and decreased work productivity. This study redefines GB as an interpersonal process measurable at the individual level and provides the first validated tool for its assessment. By conceptualizing AGB as a persistent, harmful, and functionally equivalent mechanism to IPVAW, though not necessarily physically violent, this research fills a key gap in gender violence literature. It offers practical implications for early detection and prevention strategies. Full article
(This article belongs to the Special Issue Intimate Partner Violence: A Focus on Emotion Regulation)
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26 pages, 2981 KiB  
Article
Adult-Onset Deletion of CDKL5 in Forebrain Glutamatergic Neurons Impairs Synaptic Integrity and Behavior in Mice
by Nicola Mottolese, Feliciana Iannibelli, Giulia Candini, Federica Trebbi, Manuela Loi, Angelica Marina Bove, Giorgio Medici, Zhi-Qi Xiong, Elisabetta Ciani and Stefania Trazzi
Int. J. Mol. Sci. 2025, 26(14), 6626; https://doi.org/10.3390/ijms26146626 - 10 Jul 2025
Viewed by 263
Abstract
Cyclin-dependent kinase-like 5 (CDKL5) deficiency disorder (CDD) is a severe X-linked neurodevelopmental condition characterized by early-onset, intractable epilepsy, motor and cognitive impairment, and autistic-like features. Although constitutive Cdkl5 knockout (KO) models have established the importance of CDKL5 during early brain development, CDKL5’s role [...] Read more.
Cyclin-dependent kinase-like 5 (CDKL5) deficiency disorder (CDD) is a severe X-linked neurodevelopmental condition characterized by early-onset, intractable epilepsy, motor and cognitive impairment, and autistic-like features. Although constitutive Cdkl5 knockout (KO) models have established the importance of CDKL5 during early brain development, CDKL5’s role in the mature brain remains poorly defined. Here, we employed an inducible, conditional KO model in which Cdkl5 is selectively deleted from forebrain glutamatergic neurons in adult mice to investigate the postdevelopmental functions of CDKL5. Using a total of 48 adult male mice, including Cdkl5flox/Y(Cre+) (n = 30) and Cdkl5flox/Y(Cre) littermate controls (n = 18), we found that tamoxifen-induced Cdkl5 deletion led to prominent behavioral impairments, including deficits in motor coordination, reduced sociability, and impaired hippocampus-dependent spatial memory, while behavioral features such as hyperactivity and stereotypic jumping, typically present in germline KOs, were absent. Sensory functions, including olfaction and pain perception, were also preserved. At the cellular level, the loss of Cdkl5 resulted in a marked reduction in excitatory synapse density in the cortex and hippocampus, accompanied by increased numbers of immature dendritic spines and decreased mature spines. Neuronal loss in the hippocampal CA1 region and selective microglial activation in the cortex were also observed. These alterations closely resemble those seen in constitutive KO models, underscoring the ongoing requirement for CDKL5 expression in excitatory neurons for maintaining synaptic integrity and neuronal homeostasis in the adult brain. This study underscores the importance of temporally controlled models for investigating the mechanisms underlying CDD pathophysiology in the adult brain. Full article
(This article belongs to the Section Molecular Neurobiology)
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19 pages, 772 KiB  
Article
Analysis Regarding the Effectiveness of an Intervention Program for Equality and Prevention of Gender Violence in Adolescents
by Elena Vila-Cortavitarte, José Miguel Díaz-Gómez and N. Marta Díaz-Gómez
Adolescents 2025, 5(3), 29; https://doi.org/10.3390/adolescents5030029 - 26 Jun 2025
Viewed by 565
Abstract
Affective–sexual education programs (ASEPs) are effective in combating gender violence (GV). Most previous studies have focused on the short-term effect these programs have on explicit sexist attitudes. The objective of this study was to analyze the short- and medium-term effect of an ASEP [...] Read more.
Affective–sexual education programs (ASEPs) are effective in combating gender violence (GV). Most previous studies have focused on the short-term effect these programs have on explicit sexist attitudes. The objective of this study was to analyze the short- and medium-term effect of an ASEP regarding sexist attitudes. An educational intervention study was carried out on 561 high school students in Tenerife (Spain). The 15 h intervention used a participatory methodology with debates, working groups, and game dynamics. Explicit attitudes were measured with the scale of sexist, violent, and stereotyped attitudes (SVSAs) and the gender role attitudes scale (GRAS), and implicit attitudes were measured with the assessment of the behavior of the characters of a brief tailored story, in which an interaction between two young people with an ambiguous component of gender violence is described. Four measurements were made: pre-intervention, post-intervention, 6 months, and 12 months. After the intervention, in the experimental group, scale scores decreased (SVSA from 28.7 ± 7.7 to 21.8 ± 2.1, p < 0.0001; GRAS from 30.6 ± 7.8 to 22.3 ± 2.8, p < 0.0001), and the level of approval of the behavior of the female character of the story improved (from 5.4 ± 2.6 to 7.6 ± 2.1, p < 0.0001). The effect of the intervention on sexist attitudes was maintained until the end of the 12-month follow-up period. Full article
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22 pages, 1830 KiB  
Article
Decoupling Behavioral Domains via Kynurenic Acid Analog Optimization: Implications for Schizophrenia and Parkinson’s Disease Therapeutics
by Diána Martos, Bálint Lőrinczi, István Szatmári, László Vécsei and Masaru Tanaka
Cells 2025, 14(13), 973; https://doi.org/10.3390/cells14130973 - 25 Jun 2025
Viewed by 891
Abstract
Kynurenic acid (KYNA), a putative neuroprotective agent, modulates glutamatergic pathways in schizophrenia and Parkinson’s disease but is limited by acute motor activity impairments (e.g., ataxia). Research leveraging animal disease models explores its structure–activity relationship to enhance therapeutic efficacy while mitigating adverse effects, addressing [...] Read more.
Kynurenic acid (KYNA), a putative neuroprotective agent, modulates glutamatergic pathways in schizophrenia and Parkinson’s disease but is limited by acute motor activity impairments (e.g., ataxia). Research leveraging animal disease models explores its structure–activity relationship to enhance therapeutic efficacy while mitigating adverse effects, addressing global neuropsychiatric disorders affecting over 1 billion people. Structural analogs of KYNA (SZR-72, SZR-73, and SZR-81) were designed to uncouple therapeutic benefits from motor toxicity; yet, systematic comparisons of their acute behavioral profiles remain unexplored. Here, we assess the motor safety, time-dependent effects, and therapeutic potential of these analogs in mice. Using acute intracerebroventricular dosing, we evaluated motor coordination (rotarod), locomotor activity (open-field), and stereotypic behaviors. KYNA induced significant ataxia and stereotypic behaviors at 15 min, resolving by 45 min. In contrast, all analogs avoided acute motor deficits, with SZR-73 maintaining baseline rotarod performance and eliciting a delayed decrease in ambulation and inquisitiveness in open-field assays. These findings demonstrate that the structural optimization of KYNA successfully mitigates motor toxicity while retaining neuromodulatory activity. Here, we show that SZR-73 emerges as a lead candidate, combining transient therapeutic effects with preserved motor coordination. This study advances the development of safer neuroactive compounds, bridging a critical gap between preclinical innovation and clinical translation. Future work must validate chronic efficacy, disease relevance, and mechanistic targets to harness the full potential of KYNA analogs in treating complex neuropsychiatric disorders. Full article
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38 pages, 607 KiB  
Systematic Review
Children and Adolescents with Co-Occurring Attention-Deficit/Hyperactivity Disorder and Autism Spectrum Disorder: A Systematic Review of Multimodal Interventions
by Carmela De Domenico, Angelo Alito, Giulia Leonardi, Erica Pironti, Marcella Di Cara, Adriana Piccolo, Carmela Settimo, Angelo Quartarone, Antonella Gagliano and Francesca Cucinotta
J. Clin. Med. 2025, 14(11), 4000; https://doi.org/10.3390/jcm14114000 - 5 Jun 2025
Viewed by 1784
Abstract
Background/Objectives: The co-occurrence of Attention-deficit/hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) is very common and worsens adaptive functioning. This systematic review evaluates both pharmacological and non-pharmacological interventions in this underserved population. Methods: Registered on PROSPERO (CRD42024526157), a systematic search was [...] Read more.
Background/Objectives: The co-occurrence of Attention-deficit/hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD) is very common and worsens adaptive functioning. This systematic review evaluates both pharmacological and non-pharmacological interventions in this underserved population. Methods: Registered on PROSPERO (CRD42024526157), a systematic search was conducted on PubMed, Embase, and Web of Science until 5 April 2025. The review includes (a) pilot studies and RCTs, (b) participants aged <18 years, (c) diagnoses of ASD and ADHD based on DSM-IV/V or ICD-9/10, (d) at least one group receiving any intervention, and (e) publications in English, Italian, Spanish, or German. Newcastle Ottawa Scale tools for non-randomized studies and the Cochrane Risk of Bias Tools for randomized controlled trials were used to assess studies’ quality. Results: A total of 32 studies were included: 87.5% concerning pharmacological treatments. Specifically, methylphenidate (MPH, n = 11), atomoxetine (ATX, n = 11), guanfacina (n = 4), clonidine (n = 1), or atypical antipsychotics (n = 1) were examined. MPH and ATX were most frequently studied, with both showing positive effects in reducing ADHD core symptoms compared to placebo. ATX also reduces stereotyped behaviors and social withdrawal, although more withdrawals due to adverse events (AEs) were reported for ATX than MPH. Four studies (12.5%) examined non-pharmacological interventions, including treatment with virtual reality tools, digital platforms, educational animations, and biomedical protocols; improvements in emotion recognition, behavioral regulation, attention, and social functioning were found. Conclusions: While limited data prevent definitive conclusions, MPH and ATX appear to be relatively safe and effective on hyperactivity-impulsivity symptoms, even in individuals with ASD. Evidence on non-pharmacological treatments is limited, and further studies are needed to better establish their therapeutic potential. Full article
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13 pages, 791 KiB  
Review
The Complementary Role of Gestures in Spotted Hyena (Crocuta crocuta) Communication
by Andrew J. Laurita and Stephanie A. Poindexter
Animals 2025, 15(10), 1366; https://doi.org/10.3390/ani15101366 - 9 May 2025
Viewed by 477
Abstract
Spotted hyenas live in fission–fusion social societies, requiring them to adopt a flexible multimodal communication system across variable spatial scales. However, researchers have extensively studied acoustic and olfactory signals for conspecific communication compared to visual signals, especially in wild populations. Here, we reviewed [...] Read more.
Spotted hyenas live in fission–fusion social societies, requiring them to adopt a flexible multimodal communication system across variable spatial scales. However, researchers have extensively studied acoustic and olfactory signals for conspecific communication compared to visual signals, especially in wild populations. Here, we reviewed 46 articles on the Web of Science on social communication in wild and captive spotted hyena populations to synthesize our collective knowledge of the extent to which spotted hyenas utilize sensory cues to communicate and how flexible they are between captive and wild populations. Across all articles, 54% focused on acoustic communication (n = 25), 33% on olfaction (n = 15), leaving only 13% on vision (n = 6). Most of this research studied wild populations (82%; n = 38), leaving an intriguing gap in our knowledge of captive populations and their potential for developing behavioral innovations due to their robust social cognition (i.e., modifying behavioral form and/or function observed in wild populations to better accommodate the captive performer’s environment and social needs). Improving our understanding of innovation development in this species has possible benefits for studying behavioral evolution and improving captive welfare (e.g., identifying normal vs. stereotypic behavior) in this social carnivore. Full article
(This article belongs to the Section Mammals)
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27 pages, 708 KiB  
Review
Environmental Enrichment as a Possible Adjunct Therapy in Autism Spectrum Disorder: Insights from Animal and Human Studies on the Implications of Glial Cells
by Enrique Hernández-Arteaga, Josué Antonio Camacho-Candia, Roxana Pluma-Romo, María Isabel Solís-Meza, Myriam Nayeli Villafuerte-Vega and Francisco Aguilar-Guevara
Neuroglia 2025, 6(2), 18; https://doi.org/10.3390/neuroglia6020018 - 25 Apr 2025
Viewed by 1765
Abstract
Background/Objectives: Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition influenced by genetic, environmental, and epigenetic factors, leading to cognitive, emotional, and social impairments. Due to the heterogeneity of ASD, conventional therapies often have limited effectiveness, highlighting the need for complementary interventions. Enriched [...] Read more.
Background/Objectives: Autism Spectrum Disorder (ASD) is a complex neurodevelopmental condition influenced by genetic, environmental, and epigenetic factors, leading to cognitive, emotional, and social impairments. Due to the heterogeneity of ASD, conventional therapies often have limited effectiveness, highlighting the need for complementary interventions. Enriched environments (EEs), characterized by enhanced sensory, cognitive, and motor stimulation, have shown promise in alleviating ASD symptoms. This review examines the role of glial cells in mediating the effects of EE. Methods: A literature review was conducted, analyzing studies on EE interventions in animal models and humans, with a focus on glial involvement in neuroplasticity and synaptic remodeling. Results: Evidence from animal models suggests that EE induces significant glial modifications, including increased synaptogenesis and enhanced neuronal connectivity. Studies in rodent models of ASD have demonstrated that EE reduces stereotypical behaviors, improves social interactions, and enhances cognitive function, effects that are closely associated with astrocyte and microglia activity. Similarly, human studies indicate that EE interventions lead to reduced autism symptom severity and improved cognitive outcomes, further supporting the hypothesis that glial cells play a central role in mediating the beneficial effects of EE. Conclusions: This review highlights the potential of EE as a modulator of the brain’s microenvironment, emphasizing the critical role of glial processes in ASD intervention. These findings suggest that future therapeutic strategies for ASD should integrate approaches that specifically target a glial function to optimize intervention outcomes. However, further research is needed to optimize EE protocols and address ASD heterogeneity. Full article
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13 pages, 200 KiB  
Article
Binge Eating Disorder and Fatphobia: Social Stigma, Exclusion, and the Need for a New Perspective on Health
by Alexandra Ainz-Galende, María José Torres-Haro and Rubén Rodríguez-Puertas
Societies 2025, 15(5), 115; https://doi.org/10.3390/soc15050115 - 23 Apr 2025
Viewed by 847
Abstract
Binge eating disorder (BED) has long been an overlooked mental health condition, making its recognition and treatment more challenging. This study examines the impacts of social stigma and fatphobia on individuals with BED, exploring how these factors influence their well-being and perpetuate cycles [...] Read more.
Binge eating disorder (BED) has long been an overlooked mental health condition, making its recognition and treatment more challenging. This study examines the impacts of social stigma and fatphobia on individuals with BED, exploring how these factors influence their well-being and perpetuate cycles of exclusion and discrimination. Using a psychosocial approach, this research analyzes how societal misperceptions about BED foster harmful stereotypes, such as the belief that being overweight results from a lack of willpower or personal negligence. This study is based on a qualitative discourse analysis of 12 participants diagnosed with BED. The findings highlight the presence of compensatory behaviors, including fasting, excessive exercise, and laxative use, which challenge the conventional understanding of BED. The results reveal that BED affects not only individuals at a personal level, but also deeply impacts their social and family lives, reinforcing shame, guilt, and self-hatred. Diet culture and weight stigma contribute to social exclusion, further hindering access to proper treatment. This study provides a critical perspective on the need for a cultural shift in how society perceives weight and eating behaviors, advocating for a more inclusive health model that prioritizes mental well-being and body diversity over arbitrary aesthetic standards. These findings underscore the need for greater societal understanding, inclusive health narratives, and further qualitative research into the lived experiences of individuals with BED. Full article
(This article belongs to the Special Issue Innovative and Multidisciplinary Approaches to Healthcare)
17 pages, 1239 KiB  
Article
Virtual Reality as a Tool for Upper Limb Rehabilitation in Rett Syndrome: Reducing Stereotypies and Improving Motor Skills
by Rosa Angela Fabio, Martina Semino, Michela Perina, Matteo Martini, Emanuela Riccio, Giulia Pili, Danilo Pani and Manuela Chessa
Pediatr. Rep. 2025, 17(2), 49; https://doi.org/10.3390/pediatric17020049 - 18 Apr 2025
Viewed by 621
Abstract
Background/Objectives: Rett Syndrome (RTT) is a rare neurodevelopmental disorder that causes the loss of motor, communicative, and cognitive skills. While no cure exists, rehabilitation plays a crucial role in improving quality of life. Virtual Reality (VR) has shown promise in enhancing motor function [...] Read more.
Background/Objectives: Rett Syndrome (RTT) is a rare neurodevelopmental disorder that causes the loss of motor, communicative, and cognitive skills. While no cure exists, rehabilitation plays a crucial role in improving quality of life. Virtual Reality (VR) has shown promise in enhancing motor function and reducing stereotypic behaviors in RTT. This study aims to assess the impact of VR training on upper limb motor skills in RTT patients, focusing on reaching and hand-opening tasks, as well as examining its role in motivation and engagement during rehabilitation. Methods: Twenty RTT patients (aged 5–33) were randomly assigned to an experimental group (VR training) and a control group (standard rehabilitation). Pre- and post-tests evaluated motor skills and motivation in both VR and real-world contexts. The VR training involved 40 sessions over 8 weeks, focusing on fine motor tasks. Non-parametric statistical methods were used to analyze the data. Results: Results indicated significant improvements in the experimental group for motor parameters, including reduced stereotypy intensity and frequency, faster response times, and increased correct performance. These improvements were consistent across VR and ecological conditions. Moreover, attention time increased, while the number of aids required decreased, highlighting enhanced engagement and independence. However, motivation levels remained stable throughout the sessions. Conclusions: This study demonstrates the potential of VR as a tool for RTT rehabilitation, addressing both motor and engagement challenges. Future research should explore the customization of VR environments to maximize the generalization of skills and sustain motivation over extended training periods. Full article
(This article belongs to the Special Issue Mental Health and Psychiatric Disorders of Children and Adolescents)
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35 pages, 2422 KiB  
Review
Biogenic Amine Metabolism and Its Genetic Variations in Autism Spectrum Disorder: A Comprehensive Overview
by Claudio Tabolacci, Angela Caruso, Martina Micai, Giulia Galati, Carla Lintas, Maria Elena Pisanu and Maria Luisa Scattoni
Biomolecules 2025, 15(4), 539; https://doi.org/10.3390/biom15040539 - 7 Apr 2025
Viewed by 1333
Abstract
Autism spectrum disorder (ASD) is a genetically heterogeneous syndrome characterized by repetitive, restricted, and stereotyped behaviors, along with persistent difficulties with social interaction and communication. Despite its increasing prevalence globally, the underlying pathogenic mechanisms of this complex neurodevelopmental disorder remain poorly understood. Therefore, [...] Read more.
Autism spectrum disorder (ASD) is a genetically heterogeneous syndrome characterized by repetitive, restricted, and stereotyped behaviors, along with persistent difficulties with social interaction and communication. Despite its increasing prevalence globally, the underlying pathogenic mechanisms of this complex neurodevelopmental disorder remain poorly understood. Therefore, the identification of reliable biomarkers could play a crucial role in enabling early screening and more precise classification of ASD subtypes, offering valuable insights into its physiopathology and aiding the customization of treatment or early interventions. Biogenic amines, including serotonin, histamine, dopamine, epinephrine, norepinephrine, and polyamines, are a class of organic compounds mainly produced by the decarboxylation of amino acids. A substantial portion of the genetic variation observed in ASD has been linked to genes that are either directly or indirectly involved in the metabolism of biogenic amines. Their potential involvement in ASD has become an area of growing interest due to their pleiotropic activities in the central nervous system, where they act as both neurotransmitters and neuromodulators or hormones. This review examines the role of biogenic amines in ASD, with a particular focus on genetic alterations in the enzymes responsible for their synthesis and degradation. Full article
(This article belongs to the Special Issue Biomarkers and Molecular Basis of Psychiatry)
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16 pages, 1047 KiB  
Article
Effects of Forage-to-Concentrate Ratio on Abnormal Stereotypic Behavior in Lambs and Goat Kids
by Cemil Tölü
Animals 2025, 15(7), 963; https://doi.org/10.3390/ani15070963 - 27 Mar 2025
Viewed by 487
Abstract
A crucial component of small ruminant production, particularly where intensive systems are becoming more prevalent, is determining the forage-to-concentrate (F:C) ratio in their daily diets. The effects of the F:C ratio in lambs and goat kids’ daily diets on growth, stereotypical behavior, and [...] Read more.
A crucial component of small ruminant production, particularly where intensive systems are becoming more prevalent, is determining the forage-to-concentrate (F:C) ratio in their daily diets. The effects of the F:C ratio in lambs and goat kids’ daily diets on growth, stereotypical behavior, and blood biochemical parameters were investigated. Eighteen Tahirova sheep lambs and 18 Turkish Saanen goat kids were used, divided into three groups using the following F:C ratios: 20:80, 60:40, and 80:20. Growth rates, weight gains, and feed conversion ratios were determined. Urea nitrogen, glucose, non-esterified fatty acids, creatine kinase, and cortisol hormones were measured in blood samples. In lambs, growth remained consistent across F:C groups. In goat kids, however, the 20:80 group showed superior growth and weight gain. Based on the F:C ratios, behavioral differences were found in forage feeding, rumination, water consumption, and standing activities. Similarly, the 20:80 group displayed higher rates of bar biting, crib biting, and wool biting in lambs, as well as bar biting, crib biting, bucket biting, and chain chewing in goat kids. Cortisol levels were significantly higher in the 80:20 group than in the 20:80 group for both species. Insufficient forage can cause abnormal stereotypical behaviors, which negatively impact animal welfare. Full article
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16 pages, 847 KiB  
Review
Therapeutic Effects of Pharmacological Modulation of Serotonin Brain System in Human Patients and Animal Models of Fragile X Syndrome
by Lucia Ciranna and Lara Costa
Int. J. Mol. Sci. 2025, 26(6), 2495; https://doi.org/10.3390/ijms26062495 - 11 Mar 2025
Viewed by 831
Abstract
The brain serotonin (5-HT) system modulates glutamatergic and GABAergic transmission in almost every brain area, crucially regulating mood, food intake, body temperature, pain, hormone secretion, learning and memory. Previous studies suggest a disruption of the brain 5-HT system in Fragile X Syndrome, with [...] Read more.
The brain serotonin (5-HT) system modulates glutamatergic and GABAergic transmission in almost every brain area, crucially regulating mood, food intake, body temperature, pain, hormone secretion, learning and memory. Previous studies suggest a disruption of the brain 5-HT system in Fragile X Syndrome, with abnormal activity of the 5-HT transporter leading to altered 5-HT brain levels. We provide an update on therapeutic effects exerted by drugs modulating serotonergic transmission on Fragile X patients and animal models. The enhancement of serotonergic transmission using Selective Serotonin Reuptake Inhibitors (SSRIs) corrected mood disorders and language deficits in Fragile X patients. In Fmr1 KO mice, a model of Fragile X Syndrome, selective 5-HT7 receptor agonists rescued synaptic plasticity, memory and stereotyped behavior. In addition, drugs specifically acting on 5-HT1A, 5-HT2 and 5-HT5 receptor subtypes were able to correct, respectively, epilepsy, learning deficits and hyperactivity in different Fragile X animal models. In conclusion, the SSRI treatment of Fragile X patients improves mood and language; in parallel, studies on animal models suggest that compounds selectively acting on distinct 5-HT receptor subtypes might provide a targeted correction of other Fragile X phenotypes, and thus should be further tested in clinical trials for future therapy. Full article
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16 pages, 716 KiB  
Article
Efficient Graph Representation Learning by Non-Local Information Exchange
by Ziquan Wei, Tingting Dan, Jiaqi Ding and Guorong Wu
Electronics 2025, 14(5), 1047; https://doi.org/10.3390/electronics14051047 - 6 Mar 2025
Viewed by 786
Abstract
Graphs are an effective data structure for characterizing ubiquitous connections as well as evolving behaviors that emerge in inter-wined systems. Limited by the stereotype of node-to-node connections, learning node representations is often confined in a graph diffusion process where local information has been [...] Read more.
Graphs are an effective data structure for characterizing ubiquitous connections as well as evolving behaviors that emerge in inter-wined systems. Limited by the stereotype of node-to-node connections, learning node representations is often confined in a graph diffusion process where local information has been excessively aggregated, as the random walk of graph neural networks (GNN) explores far-reaching neighborhoods layer-by-layer. In this regard, tremendous efforts have been made to alleviate feature over-smoothing issues such that current backbones can lend themselves to be used in a deep network architecture. However, compared to designing a new GNN, less attention has been paid to underlying topology by graph re-wiring, which mitigates not only flaws of the random walk but also the over-smoothing risk incurred by reducing unnecessary diffusion in deep layers. Inspired by the notion of non-local mean techniques in the area of image processing, we propose a non-local information exchange mechanism by establishing an express connection to the distant node, instead of propagating information along the (possibly very long) original pathway node-after-node. Since the process of seeking express connections throughout a graph can be computationally expensive in real-world applications, we propose a re-wiring framework (coined the express messenger wrapper) to progressively incorporate express links in a non-local manner, which allows us to capture multi-scale features without using a very deep model; our approach is thus free of the over-smoothing challenge. We integrate our express messenger wrapper with existing GNN backbones (either using graph convolution or tokenized transformer) and achieve a new record on the Roman-empire dataset as well as in terms of SOTA performance on both homophilous and heterophilous datasets. Full article
(This article belongs to the Special Issue Artificial Intelligence in Graphics and Images)
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