Results 41 to 50 of about 7,998 (258)

Developmental Trajectories of Anhedonia in Preclinical Models [PDF]

, 2022
This chapter discusses how the complex concept of anhedonia can be operationalized and studied in preclinical models. It provides information about the development of anhedonia in the context of early-life adversity, and the power of preclinical models ...
Birnie, Matthew T, Stephen V. Mahler, Tallie Z. Baram, Mahler, Stephen V, Sophia C. Levis, Levis, Sophia C, Baram, Tallie Z, Matthew T. Birnie   +7 more
core   +1 more source

Palatable‐Food–Driven Top‐Down Circuit Inhibits PVNCRF Activity to Mitigate Stress Via Peri‐PVNCRFR1 Neurons

Advanced Science, EarlyView.
Palatable food alleviates stress and prevents anxiety. This study uncovers a dedicated neural pathway: dopamine release in the PFC activates D1R neurons, whose projections to the peri‐PVN engage a population of anxiolytic CRFR1 neurons. These neurons then inhibit stress‐induced hyperactivity of PVNCRF neurons, providing a circuit‐level explanation for ...
Yuchuan Hong, Shirui Jun, Tianjiao Deng, Gaojie Shao, Dan Liu, Yi Sun, Yan Chen, Qian Xiao, Jie Shao, Sheng Wang, Tianwen Huang, Fan Yang, Jie Tu   +12 more
wiley   +1 more source

A three-year longitudinal study of social anhedonia and comparison groups [PDF]

, 2005
" The present study is a three-year longitudinal reassessment of schizotypic young adults and comparison participants identified by the Revised Social Anhedonia Scale (Eckblad, Chapman, Chapman, & Mishlove, 1982).
Diaz, Martha Ann, NC DOCKS at The University of North Carolina at Greensboro   +1 more
core  

Astrocytic FDX1 Contributes to Copper Dyshomeostasis‐associated Synaptic Dysfunction in Depression and Is Modulated by Exercise

Advanced Science, EarlyView.
Chronic stress disrupts copper homeostasis and promotes copper accumulation in the prelimbic cortex, leading to astrocytic FDX1 upregulation. Elevated astrocytic FDX1 impairs calcium signaling, induces structural atrophy, and disrupts synaptic function, contributing to depressive‐like behaviors. Physical exercise reverses these alterations by restoring
Lina Gao, Rongji Hui, Zhibo Tang, Tao Feng, Zhihang Hu, Xiaoqing Zhang, Ping Jiang, Hui Zhao, Kwok‐Fai So, Tianyuan Luo, Yanzhou Chang, Lan Yan   +11 more
wiley   +1 more source

Mood Disorder Begins in the Mouth: Periodontitis Mediates Anxiety‐Like Behaviors

Advanced Science, EarlyView.
ABSTRACT The previous study elucidated that the C‐reactive protein (CRP)/bone morphogenetic protein 4 (BMP4) signaling pathway mediates periodontitis‐associated anxiety‐like behaviors in rats. This molecular crosstalk along the periodontal‐hippocampal axis provides novel insights into the etiology and mechanisms of emotional disorders. However, several
Zhigang Chen, Xing Li
wiley   +1 more source

Multi‐Component Functionalized Bifidobacterium Longum Hydrogel for Multi‐Target Integrated Therapy of Colitis‐Associated Anxiety and Depression

Advanced Science, EarlyView.
A pH/MMP dual‐responsive Bifidobacterium longum (BL) hydrogel (INPs@BL@Gel) functionalized with baicalin, tyrosine, and inulin is constructed. It enables gastric protection, inflammation‐targeted release, and prolonged intestinal colonization. By remodeling gut microbiota, elevating beneficial neuroactive metabolites (homovanillic acid, short‐chain ...
Shuo Zhang, Yujie Zhang, Jiansheng He, Shunlian Li, Qingyan Ma, Qiao Li, Yudan Zhang, Yiyang Wang, Shaobo Ma, Songyan Jin, Chune Li, Xueyong Xie, Hang Zhang, Junze Deng, Xueqin Song, Daocheng Wu, Xiancang Ma, Feng Zhu   +17 more
wiley   +1 more source

Anhedonia: A Concept Analysis [PDF]

Archives of Psychiatric Nursing, 2013
Anhedonia presents itself in a myriad of disease processes. To further develop our understanding of anhedonia and effective ways to manage it, the concept requires clear boundaries. This paper critically examined the current scientific literature and conducted a concept analysis of anhedonia to provide a more accurate and lucid understanding of the ...
Nancy, Ho, Marilyn, Sommers
openaire   +2 more sources

Altered corticostriatal functional connectivity in individuals with high social anhedonia

, 2016
Background. Dysregulation of the striatum and altered corticostriatal connectivity have been associated with psychotic disorders. Social anhedonia has been identified as a predictor for the development of schizophrenia spectrum disorders.
Liu, W. -H., Zou, L. -Q., Li, Z., Wei, X. H., Geng, F. L., Pantelis, C., Jiang, X. Q., Liu, W. H., Jiang, X. -Q., Wei, X. -H., Chan, R. C.K., Lui, S. S.Y., Lui, S. S. Y., Wang, Y., Cheung, E. F.C., Cheung, E. F. C., Chan, R. C. K., Geng, F. -L., Zou, L. Q.   +18 more
core   +1 more source

Validation of the Patient Health Questionnaire‐2 (PHQ‐2) in Detecting Depression Among Older Adults

AGING MEDICINE, EarlyView.
PHQ‐2 effectively screens for geriatric depression with the optimal cut‐off of 3 points. ABSTRACT Objectives Depression screening tools like the Patient Health Questionnaire‐2 (PHQ‐2) are commonly used to detect depression. However, its performance in elderly populations has been less extensively studied compared to its broader adult use.
Francesco Salis, Maristella Belfiori, Alessandro Ferrau, Eleonora Bernardini, Emanuele Concas, Anna Maria Lugas, Antonella Mandas   +6 more
wiley   +1 more source

Genetic Risk and High Burden of Depression and Suicide in the Maya‐Mestizo Population of Yucatán, México

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Major depression and suicide are critical public health concerns, particularly in underrepresented populations with unique genetic and sociocultural contexts. The Maya‐mestizo population presents the highest suicide rates in the country but remains understudied in psychiatric genetics. This study evaluated the association between three genetic
Marta Menjivar, Erandi Bravo, Margarita Rivera‐Balancan, Barbara Itzel Pena Espinoza   +3 more
wiley   +1 more source