Results 141 to 150 of about 2,991,386 (293)

A distinct profile of tryptophan metabolism along the kynurenine pathway downstream of Toll-like receptor activation in irritable bowel syndrome

Frontiers in Pharmacology, 2012
Irritable bowel syndrome (IBS), a disorder of the brain-gut axis, is characterised by the absence of reliable biological markers. Tryptophan is an essential amino acid that serves as a precursor to serotonin but which can alternatively be metabolised ...
Gerard eClarke, Gerard eClarke, Gerard eClarke, Declan P McKernan, Gabor eGaszner, Eamonn M Quigley, Eamonn M Quigley, John F Cryan, John F Cryan, Timothy G Dinan, Timothy G Dinan   +10 more
doaj   +1 more source

Systemic L-Kynurenine sulfate administration disrupts object recognition memory, alters open field behavior and decreases c-Fos immunopositivity in C57Bl/6 mice [PDF]

, 2015
L-Kynurenine (L-KYN) is a central metabolite of tryptophan degradation through the kynurenine pathway (KP). The systemic administration of L-KYN sulfate (L-KYNs) leads to a rapid elevation of the neuroactive KP metabolite kynurenic acid (KYNA).
Dániel Varga, Etsuro Ono, Hiroki Takakuwa, Judit Herédi, József Toldi, Levente Gellért, László Vécsei, Marian Ruszka, Naoki Iwamori, Tokuko Iwamori, Zita Kánvási, Zsolt Kis   +11 more
core   +1 more source

Altered Cerebrospinal Fluid Tryptophan–Kynurenine Pathway Metabolism in Multiple System Atrophy

Movement Disorders, EarlyView.
Abstract Background Alterations in tryptophan–kynurenine (TRP‐KYN) metabolism, which is associated with neuroinflammation, remain unclear in multiple system atrophy (MSA). Objective The aim was to investigate cerebrospinal fluid (CSF) TRP metabolites in MSA and their associations with other biomarkers.
Ryunosuke Nagao, Kazuya Kawabata, Yasuaki Mizutani, Sayuri Shima, Akihiro Ueda, Mizuki Ito, Yasuhiro Maeda, Akihiro Mouri, Hirohisa Watanabe   +8 more
wiley   +1 more source

Caenorhabditis elegans orthologs of human genes differentially expressed with age are enriched for determinants of longevity [PDF]

, 2017
We report a systematic RNAi longevity screen of 82 Caenorhabditis elegans genes selected based on orthology to human genes differentially expressed with age. We find substantial enrichment in genes for which knockdown increased lifespan.
Backer, G. (Grant), Bean, S. (Shannon), Corban, C. (Caroline), Johnson, A.D. (Andrew D.), Korstanje, R. (Ron), Liu, T. (Teresa), Meurs, J.B.J. (Joyce) van, Murabito, J. (Joanne), Peters, M.A.D. (Marjolein), Sheehan, S. (Susan), Sutphin, G.L. (George L.)   +10 more
core   +1 more source

Phthalate Metabolite, Mono(2‐Ethyl‐5‐Hydroxyhexyl) Phthalate (MEHHP), Promotes Uterine‐Fibroid–Associated Phenotypes in Myometrial Stem Cell‐Derived 3D Organoids

Environmental Toxicology, EarlyView.
ABSTRACT This study investigates how phthalate exposure contributes to uterine fibroid (UF) development by studying the effects of the Mono‐(2‐ethyl‐5‐hydroxyhexyl) phthalate (MEHHP), a metabolite of Di(2‐ethylhexyl) phthalate, on myometrial stem cells (MMSCs).
Somayeh Vafaei, Mervat M. Omran, Qiwei Yang, Sandra Madueke‐Laveaux, Ami R. Zota, Ayman Al‐Hendy, Mohamed Ali   +6 more
wiley   +1 more source

Fasting and Caloric Restriction Activate an ADIOL‐NHR‐91‐Kynurenine Pathway Signaling Axis to Promote Healthspan [PDF]

Aging Cell
The steroid hormone ADIOL emerges as a key mediator of fasting–and caloric restriction–induced healthspan benefits in C. elegans. These regimens activate ADIOL production, which acts through the estrogen receptor β homolog NHR‐91 to reduce neural kynurenic acid levels and enhance healthspan independently of lifespan. ADIOL supplementation, even late in
Guijarro‐Hernández A, Yoo S, Lemieux G, Komatsu S, Latiff A, Patil R, Ashrafi K.   +6 more
europepmc   +2 more sources

Potential targets for renal cell carcinoma therapy: Mechanistic research and prospects of CAFs in renal cell carcinoma

VIEW, EarlyView.
Cancer‐associated fibroblasts exert intricate mechanisms in the progression and metastasis of renal cell carcinoma. Existing studies have validated the relevant mechanisms of three signaling pathways, which hold promising potential as novel therapeutic targets.
Ruiqiang Sun, Jiankun Zhang, Meixi Liu, Xiyue Dong, Yuanshan Cui   +4 more
wiley   +1 more source

Impact of Substance Use Disorder on Tryptophan Metabolism Through the Kynurenine Pathway: A Narrative Review

Metabolites
Background/Objectives: Substance use disorder is a crisis impacting many people in the United States. This review aimed to identify the effect addictive substances have on the kynurenine pathway.
Lindsey Contella, Christopher L. Farrell, Luigi Boccuto, Alain H. Litwin, Marion L. Snyder   +4 more
doaj   +1 more source

Serum Metabolomic Profiling of Piglets Infected with Virulent Classical Swine Fever Virus [PDF]

, 2017
Citation: Gong, W. J., Jia, J. J., Zhang, B. K., Mi, S. J., Zhang, L., Xie, X. M., . . . Tu, C. C. (2017). Serum Metabolomic Profiling of Piglets Infected with Virulent Classical Swine Fever Virus. Frontiers in Microbiology, 8, 14. doi:10.3389/fmicb.2017.
Bikai Zhang, Changchun Tu, Changchun Tu, Huancheng Guo, Jishu Shi, Junjie Jia, Li Zhang, Shijiang Mi, Wenjie Gong, Wenjie Gong, Xiaoming Xie   +10 more
core   +2 more sources

Tapinarof as a Therapeutic Aryl Hydrocarbon Receptor‐Modulating Agent in the Treatment of Atopic Dermatitis

The Journal of Dermatology, EarlyView.
ABSTRACT Atopic dermatitis (AD) is a chronic inflammatory dermatitis underpinned by Type 2 inflammation driven by cytokines such as IL‐4 and IL‐13. It is characterized by skin barrier dysfunction, Th2 immune deviation, and pruritus. While biologics and oral Janus kinase (JAK) inhibitors demonstrate high therapeutic efficacy by targeting cytokines that ...
Gaku Tsuji, Yoko Fuyuno, Koji Kawamura, Ayako Yumine, Masaki Takemura, Yasutaka Mitamura, Kazuhiko Yamamura, Takeshi Nakahara   +7 more
wiley   +1 more source