Results 41 to 50 of about 4,033 (193)

Bioactivation of the human carcinogen aristolochic acid [PDF]

Carcinogenesis, 2014
Aristolochic acids are potent human carcinogens; the role of phase II metabolism in their bioactivation is unclear. Accordingly, we tested the ability of the partially reduced metabolites, N-hydroxyaristolactams (AL-NOHs), and their N-O-sulfonated and N-O-acetylated derivatives to react with DNA to form aristolactam-DNA adducts.
Viktoriya S, Sidorenko, Sivaprasad, Attaluri, Irina, Zaitseva, Charles R, Iden, Kathleen G, Dickman, Francis, Johnson, Arthur P, Grollman   +6 more
openaire   +2 more sources

Experimental Aristolochic Acid Nephropathy: A Relevant Model to Study AKI-to-CKD Transition

Frontiers in Medicine, 2022
Aristolochic acid nephropathy (AAN) is a progressive tubulointerstitial nephritis caused by the intake of aristolochic acids (AA) contained in Chinese herbal remedies or contaminated food. AAN is characterized by tubular atrophy and interstitial fibrosis,
Thomas Baudoux, Inès Jadot, Anne-Emilie Declèves, Marie-Hélène Antoine, Jean-Marie Colet, Olivia Botton, Eric De Prez, Agnieszka Pozdzik, Cécile Husson, Nathalie Caron, Joëlle L. Nortier   +10 more
doaj   +1 more source

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

Advanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim, Eun‐kyung Min, Choon‐Mi Lee, Chan Hum Park, Byung‐Chul Oh, YunJae Jung, In‐Sun Hong   +6 more
wiley   +1 more source

Isolation, Characterization and Quantity Determination of Aristolochic Acids, Toxic Compounds in Aristolochia bracteolata L.

Environmental Health Insights, 2011
Background Aristolochic Acids (AAs) are major components of plants in Aristolochia and have been found to be nephrotoxic, carcinogenic and mutagenic. Herein reported are the isolation, identification and quantity determination methods of Aristolochic ...
Abdelgadir A. Abdelgadir, Elhadi M. Ahmed, Mahgoub Sharif Eltohami   +2 more
doaj   +1 more source

Genome-wide transcriptional analysis of Aristolochia manshuriensis induced gastric carcinoma

Pharmaceutical Biology, 2020
Context Aristolochia manshuriensis Kom (Aristolochiaceae) (AMK) is known for toxicity and mutagenicity. Objective The tumorigenic role of AMK has yet to be understood. Materials and methods AMK extracts were extracted from root crude drug.
Lianmei Wang, Chunying Li, Jingzhuo Tian, Jing Liu, Yong Zhao, Yan Yi, Yushi Zhang, Jiayin Han, Chen Pan, Suyan Liu, Nuo Deng, Zhong Xian, Guiqin Li, Xin Zhang, Aihua Liang   +14 more
doaj   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

Prognostic role of stromal tumor-infiltrating lymphocytes in locally advanced upper tract urothelial carcinoma: A retrospective multicenter study (TSU-02 study)

OncoImmunology, 2021
Locally advanced upper urinary tract urothelial carcinoma (UTUC) exhibits high recurrence and metastasis rates even after radical nephroureterectomy. Adjuvant immunotherapy can be a reasonable option, and a simple, low-cost, and effective biomarker is ...
Sida Cheng, Wenlong Zhong, Kun Xia, Peng Hong, Rongcheng Lin, Bo Wang, Xinfei Li, Junyu Chen, Zining Liu, Hongxian Zhang, Cheng Liu, Liefu Ye, Lulin Ma, Tianxin Lin, Xuesong Li, Jian Huang, Liqun Zhou   +16 more
doaj   +1 more source

3D Hydrogel Cell Cultures and Their Biomedical Applications

Advanced NanoBiomed Research, EarlyView.
The review highlights the advantages of hydrogel‐based 3D cell cultures over traditional 2D models. These hydrogels closely mimic natural cellular environments, improving research in tissue engineering, drug discovery, cancer studies, and neuroscience.
Tri Lan Thai, Arushi Manchanda, Sarah L. Higginbottom, Estrella Sanz Rodriguez, Richard Wilson, Eva Tomaskovic‐Crook, Jeremy M. Crook, Brett Paull   +7 more
wiley   +1 more source

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

Environmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons, Marc A. Beal, Kerry L. Dearfield, George R. Douglas, Min Gi, B. Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Michelle Kenyon, Alexandra S. Long, David P. Lovell, Anthony M. Lynch, Meagan B. Myers, Stefan Pfuhler, Alisa Vespa, Andreas Zeller, George E. Johnson, Paul A. White   +17 more
wiley   +1 more source

Epigenetic Regulation in the Pathogenesis of Renal Inflammation: Insights and Therapeutic Potentials

iNew Medicine, EarlyView.
ABSTRACT Renal inflammation is a common pathological process in various kidney diseases, often initiated by factors such as toxins, ischemia, or autoimmune reactions. This inflammatory response can result in structural damage and a rapid decline in renal function.
Yu‐Hang Dong, Xiao‐Yu Shen, Han‐Cheng Jin, Xiang‐Yu Li, Hao He, Xiao‐Ming Meng   +5 more
wiley   +1 more source