Results 51 to 60 of about 303,848 (355)

Tryptophan metabolite atlas uncovers organ, age, and sex‐specific variations

FEBS Open Bio, EarlyView.
Tryptophan metabolites were analyzed across twelve organs, the central nervous system, and serum in male and female mice at three life stages. We found tissue‐, sex‐, and age‐specific differences, including increased indole‐3‐pyruvate and kynurenine in aging males.
Lizbeth Perez‐Castro, Afshan F. Nawas, Jessica A. Kilgore, Pedro A. S. Nogueira, M.Carmen Lafita‐Navarro, Paul H. Acosta, Roy Garcia, Noelle S. Williams, Maralice Conacci‐Sorrell   +8 more
wiley   +1 more source

The dopamine D1-D2 receptor heteromer in striatal medium spiny neurons: evidence for a third distinct neuronal pathway in basal ganglia

Frontiers in Neuroanatomy, 2011
Dopaminergic signaling within the basal ganglia has classically been thought to occur within two distinct neuronal pathways; the direct striatonigral pathway which contains the dopamine D1 receptor and the neuropeptides dynorphin and substance P, and the
Melissa L. Perreault, Melissa L. Perreault, Ahmed eHasbi, Ahmed eHasbi, Brian F. O'Dowd, Brian F. O'Dowd, Susan R. George, Susan R. George   +7 more
doaj   +1 more source

Gray-matter volume, midbrain dopamine D2/D3 receptors and drug craving in methamphetamine users. [PDF]

, 2015
Dysfunction of the mesocorticolimbic system has a critical role in clinical features of addiction. Despite evidence suggesting that midbrain dopamine receptors influence amphetamine-induced dopamine release and that dopamine is involved in ...
Dean, AC, Kohno, M, London, ED, Mandelkern, MA, Morales, AM, Robertson, CL   +5 more
core   +4 more sources

Multimodal Autonomic Biomarkers Predict Phenoconversion in Pure Autonomic Failure

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pure autonomic failure (PAF) presents with autonomic failure without other neurological features. A third develop central neurological features, fulfilling criteria for multiple system atrophy (MSA) and Lewy body diseases (LBD), including Parkinson's disease and Dementia with Lewy bodies.
S. Koay, E. Vichayanrat, F. Bremner, F. Valerio, R. Mackenzie, G. Chiaro, G. Ingle, P. McNamara, L. Watson, J. N. Panicker, M. P. Lunn, C. Mathias, V. Iodice   +12 more
wiley   +1 more source

Systemic blockade of dopamine D2-like receptors increases high-voltage spindles in the globus pallidus and motor cortex of freely moving rats. [PDF]

PLoS ONE, 2013
High-voltage spindles (HVSs) have been reported to appear spontaneously and widely in the cortical-basal ganglia networks of rats. Our previous study showed that dopamine depletion can significantly increase the power and coherence of HVSs in the globus ...
Chen Yang, Shun-Nan Ge, Jia-Rui Zhang, Lei Chen, Zhi-Qiang Yan, Li-Jun Heng, Tian-Zhi Zhao, Wei-Xin Li, Dong Jia, Jun-Ling Zhu, Guo-Dong Gao   +10 more
doaj   +1 more source

Dopamine agonists in Parkinson’s disease: Impact of D1-like or D2-like dopamine receptor subtype selectivity and avenues for future treatment

Clinical Parkinsonism & Related Disorders, 2023
Dopamine agonists (DAs) have demonstrated efficacy for the treatment of Parkinson’s disease (PD) but are limited by adverse effects (AEs). DAs can vary considerably in their receptor subtype selectivity and affinity, chemical composition, receptor ...
Stuart H. Isaacson, Robert A. Hauser, Rajesh Pahwa, David Gray, Sridhar Duvvuri   +4 more
doaj   +1 more source

Chronic Pain in Parkinson’s Disease: Prevalence, Sex Differences, Regional Anatomy and Comorbidities

Annals of Clinical and Translational Neurology, EarlyView.
Chronic pain affected 66.2% of 10,631 individuals with Parkinson's disease, with higher prevalence and severity in females. Pain most often involved the buttocks, lower back, neck, and knees, and was linked to depression, sleep disorders, and osteoarthritis.
Natalia S. Ogonowski, Freddy Chafota, Fangyuan Cao, Amanda Wei Yin Lim, Victor Flores‐Ocampo, Santiago Díaz‐Torres, Zuriel Ceja, Luis M. García‐Marín, Scott F. Farrell, Kishore R. Kumar, Jane Alty, George D. Mellick, Trung Thành Ngô, Miguel E. Rentería   +13 more
wiley   +1 more source

Cortical Dopamine Transmission as Measured with the [11C]FLB 457 - Amphetamine PET Imaging Paradigm Is Not Influenced by COMT Genotype. [PDF]

PLoS ONE, 2016
Basic investigations link a Val158Met polymorphism (rs4680) in the catechol-O-methyltransferase (COMT) gene to not only its enzymatic activity, but also to its dopaminergic tone in the prefrontal cortex.
Rajesh Narendran, Divya Tumuluru, Maureen A May, Kodavali V Chowdari, Michael L Himes, Kelli Fasenmyer, W Gordon Frankle, Vishwajit L Nimgaonkar   +7 more
doaj   +1 more source

Dopamine-D1 and δ-opioid receptors co-exist in rat striatal neurons [PDF]

, 2006
Cocaine’s enhancement of dopaminergic neurotransmission in the mesolimbic pathway plays a critical role in the initial reinforcing properties of this drug. However, other neurotransmitter systems are also integral to the addiction process.
Ambrose-Lanci, L. M., Gallagher, S. M., Unterwald, E. M., Van Bockstaele, E. J.   +3 more
core   +2 more sources

Moyamoya Disease and the Risk of Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Moyamoya disease (MMD) is a rare cerebrovascular disorder characterized by the progressive narrowing of arteries at the base of the brain, forming abnormal collateral vascular networks. While vascular parkinsonism is noted in MMD, its link to Parkinson's disease (PD) has not been explored.
Dallah Yoo, Jeong‐Yong Shin, Rugyeom Lee, Jiwon Cheon, Ji Hun Kim, Doeun Kim, Jae‐Kyung Won, In‐Hwan Oh, Yunjong Lee, Tae‐Beom Ahn   +9 more
wiley   +1 more source