Results 31 to 40 of about 28,282 (229)

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

Temporal Immune and Metabolic Shifts Drive the Anti‐Tumor Efficacy of Resiquimod‐Loaded Nanoparticles in Peritoneal Carcinomatosis

Advanced Healthcare Materials, EarlyView.
Peritoneal carcinomatosis is a hard‐to‐treat spread of abdominal cancers that often returns after therapy. Nanoparticles were developed to retain an immune‐boosting drug in the abdomen. When combined with chemotherapy in mice, this approach eliminated tumors in many cases and prevented recurrence, helping the immune system mount a stronger, longer ...
Vanessa Chan, Po‐Han Chao, XuXin Sun, Jun Han, Sarah MacPherson, Lucas J. Andrew, Noah Y. Brittain, Tien Do, Marcel B. Bally, Julian J. Lum, Shyh‐Dar Li   +10 more
wiley   +1 more source

Concentrations of neopterin, kynurenine and tryptophan in wound secretions of patients with breast cancer and malignant melanoma: a pilot study

Pteridines, 2017
The aim of the present pilot study was to investigate the concentrations of neopterin, kynurenine and tryptophan in wound secretion in patients undergoing surgery for breast cancer or malignant melanoma.
Mergancová Jana, Javorská Lenka, Šiller Jiří, Sákra Lukáš, Mergancová Jindřiška, Solichová Dagmar, Krčmová Lenka Kujovská, Melichar Bohuslav, Mohelníková-Duchoňová Beatrice, Študentová Hana, Klos Dušan   +10 more
doaj   +1 more source

Brain Kynurenine Pathway and Functional Outcome of Rats Resuscitated From Cardiac Arrest

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Brain injury and neurological deficit are consequences of cardiac arrest (CA), leading to high morbidity and mortality. Peripheral activation of the kynurenine pathway (KP), the main catabolic route of tryptophan metabolized at first into ...
Jacopo Lucchetti, Francesca Fumagalli, Davide Olivari, Roberta Affatato, Claudia Fracasso, Daria De Giorgio, Carlo Perego, Francesca Motta, Alice Passoni, Lidia Staszewsky, Deborah Novelli, Aurora Magliocca, Silvio Garattini, Roberto Latini, Giuseppe Ristagno, Marco Gobbi   +15 more
doaj   +1 more source

Vascularized Liver‐on‐a‐Microsphere Reveals Alanine‐Glucose Metabolism‐Driven Regulation of Liver Function and Injury

Advanced Science, EarlyView.
A vascularized liver‐on‐a‐microsphere system is developed to recreate lobule‐like cellular organization and endothelial barrier function within compartmentalized hydrogel particles. The platform enhances hepatic performance and reveals alanine‐glucose cycle activation linked to improved detoxification capacity, offering a high‐throughput microscale ...
Jingyang Li, Zengnan Wu, Yingrui Zhang, Shulang Chen, Yongning Lin, Shiyu Chen, Tong Xu, Xianli Meng, Yi Zhang, Jin‐Ming Lin   +9 more
wiley   +1 more source

Altered Kynurenine Pathway Metabolism in Rats Fed Added Sugars

Genel Tıp Dergisi, 2022
Aim: The consumption of added sugars containing fructose has increased dramatically. Various studies have revealed that added sugar consumption may be involved in the pathogenesis of cardiovascular, metabolic and neurocognitive disorders by triggering ...
Bahadir Ozturk, Duygu Eryavuz Onmaz
doaj   +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

The role of kynurenine and kynurenine metabolites in psoriasis

Turkish Journal of Biochemistry
Abstract Objectives Psoriasis is a widespread immunological disease characterised by inflammation and primarily associated with skin and joint symptoms. The kynurenine pathway significantly influences inflammation and immune system activity.
Fikret Akyurek, Fatma Tuncez-Akyurek, Fatma Sengul   +2 more
openaire   +2 more sources

Tryptophan depletion sensitizes the AHR pathway by increasing AHR expression and GCN2/LAT1-mediated kynurenine uptake, and potentiates induction of regulatory T lymphocytes

Journal for ImmunoTherapy of Cancer, 2023
Background Indoleamine 2,3-dioxygenase 1 (IDO1) and tryptophan-dioxygenase (TDO) are enzymes catabolizing the essential amino acid tryptophan into kynurenine.
Luc Pilotte, Benoit J Van den Eynde, Jingjing Zhu, Christine Sers, Marie Solvay, Pauline Holfelder, Simon Klaessens, Vincent Stroobant, Juliette Lamy, Stefan Naulaerts, Quentin Spillier, Raphaël Frédérick, Etienne De Plaen, Christiane A Opitz   +13 more
doaj   +1 more source

Targeted Delivery of Indole‐3‐Pyruvic Acid Suppresses Macrophage Ferroptosis to Enhance CD8+ T Cell‐Mediated Immunotherapy Response in Bladder Cancer

Advanced Science, EarlyView.
A microbiota‐derived metabolite, indole‐3‐pyruvic acid, suppresses macrophage ferroptosis through the AHR–NF‐κB–SLC7A11 axis. This preserves CD8+ T cell function in bladder cancer. Macrophage‐targeted nanoparticles enhance indole‐3‐pyruvic acid delivery and overcome resistance to PD‐1 blockade.
Jianwen Lao, Xinhao Yuan, Shuai Liang, Kai Deng, Daqin Wu, Longhao Xu, Kun Zheng, Yi Lin, Peicong Cai, Haoran Zheng, Junyu Chen, Mingli Luo, Yan Chen, Xiong Chen, Chunhui Wang, Wenlong Zhong   +15 more
wiley   +1 more source