性别特定的脆弱性单一的长期压力:行为改变和氧化还原不平衡在发育中的大脑
Benedetta Di Cesare1, Giulia Federica Mancini2, Jacopo Maria Lisiola1
1Dept. of Physiology and Pharmacology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy; Neuropharmacology Unit, IRCCS Fondazione Santa Lucia, Via Ardeatina 306, 00143 Rome, Italy.
Biochemical pharmacology
|October 12, 2025
概括
在幼鼠中,单一的长期压力 (SPS) 会导致性别特异的行为变化,并改变大脑中的氧化还原标记. 这项研究揭示了男性和女性青少年之间应激反应的关键差异.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 行为科学 行为科学
背景情况:
- 单一的长期压力 (SPS) 模型在成年人中出现创伤后应激障碍 (PTSD) 样症状.
- SPS对青少年大脑的影响,这是一个显著成熟的时期,基本上是未知的.
- 降解氧失调越来越多地与与压力相关的疾病有关.
研究的目的:
- 为了研究SPS在年轻的雄性和雌性大鼠中的行为和神经生物学影响.
- 检查应激敏感脑区域 (前额皮质和海马体) 的氧化还原相关标记的性别特异性变化.
主要方法:
- 雄性和雌性大鼠在出生后23天接受了SPS.
- 在SPS.后7天进行了行为评估.
- 在前额皮质和海马体中测量了与氧化相关的标记物 (SOD-1,CAT,NRF-2,4-HNE,NOX-2).
主要成果:
- 在男性中,SPS增加了类似焦虑的行为,在女性中减少了焦虑,同时在两性中减少了社交游戏.
- 男性在前额皮质和海马体中显示出超氧化物失突酶1 (SOD-1) 的降低.
- 雌性表现出改变的催化酶 (CAT) 和核因素红色素2相关因子2 (NRF-2) 水平,在海马中减少了氧化应激标志物 (4-HNE,NOX-2).
结论:
- 在早期青少年大鼠中,SPS诱导了性别分离的行为和氧化还原变化.
- 这些发现突显了SPS后氧化应激调节的区域特异性差异.
- 这项研究确定了与压力有关的疾病治疗干预的潜在目标.
相关概念视频
Stress and Mental Health
770
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
770
Causes of Social Behavior III: Biological and Environmental Influences
234
Social behavior is a complex phenomenon that arises from the interaction between biological predispositions and environmental influences. This intricate interplay shapes how individuals think, feel, and act in various social contexts. Understanding these mechanisms requires insights from psychology, neuroscience, genetics, and evolutionary theory.Environmental Influences on Social BehaviorEnvironmental factors, including temperature, odors, and visual stimuli, play a crucial role in shaping...
234
Attention-Deficit/Hyperactivity Disorder
758
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
758
Introduction to Stress and Lifestyle
512
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
512
Human Genetics
1.4K
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
1.4K
Post-traumatic Stress Disorder
482
Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
482


