Results 121 to 130 of about 53,334 (334)

Electrophilic Substitution at C(7) of a Protected 7-Deaza-2’-deoxyguanosine – The 2’-Deoxyribonucleoside Parent Analogue of Queuosine #

Molbank, 2007
In this manuscript we report on the regioselective electrophilic substitution at C(7) of 7-[2-deoxy-3,5-bis-O-(2-methylpropanoyl)-ß-D-erythro-pentofuranosyl]-2-(formylamino)-4-methoxy-7H-pyrrolo[2,3-d]pyrimidine (2) – a protected precursor of 7-deaza-2 ...
Helmut Rosemeyer, Natalya Ramzaeva
doaj   +1 more source

Stimuli‐Responsive Supramolecular Biomaterials for Cancer Theranostics

Advanced Science, EarlyView.
The ultimate goal of cancer theranostics is to get imaging agents and therapeutic cargo to tumor sites when and where they are required. “Smart” systems should be developed. This review discusses the characteristics of physiological stimuli, types and action modes of external stimuli, construction approaches and working principles, as well as ...
Wenting Hu, Binglin Ye, Guocan Yu, Feihe Huang, Zhengwei Mao   +4 more
wiley   +1 more source

Spatially Resolved Multiomics Reveals Metabolic Remodeling and Autophagy Activation in Adamantinomatous Craniopharyngiomas

Advanced Science, EarlyView.
Multiomics integration analysis reveals the “cystic fluid–tumor cell” metabolic coupling that mediates active choline/ethanolamine uptake of tumor cells from cystic fluid and PC/PE synthesis pathways reprogramming that mediating autophagy pathway activation within ACP. ABSTRACT Adamantinomatous craniopharyngioma (ACP), a benign yet highly recurrent and
Dongting Chen, Yahui Gao, Yulin Wang, Ting Lei, Zheng Qu, Yuhan An, Jiaxu Fu, Xin Li, Fangjun Liu, Yan Li   +9 more
wiley   +1 more source

Assessment of oxidative damage to proteins and DNA in urine of newborn infants by a validated UPLC-MS/MS approach.

PLoS ONE, 2014
The assessment of oxidative stress is highly relevant in clinical Perinatology as it is associated to adverse outcomes in newborn infants. This study summarizes results from the validation of an Ultra Performance Liquid Chromatography-tandem Mass ...
Julia Kuligowski, Isabel Torres-Cuevas, Guillermo Quintás, Denise Rook, Johannes B van Goudoever, Elena Cubells, Miguel Asensi, Isabel Lliso, Antonio Nuñez, Máximo Vento, Javier Escobar   +10 more
doaj   +1 more source

In-vitro STUDY OF ACRYLAMIDE AND TBHQ COMPOUNDS ON THE GENERATION OF DNA ADDUCT 8-HYDROXY-2’- DEOXYGUANOSINE AS BIOMARKER OF OXIDATIVE DNA DAMAGE

, 2022
B. Budiawan, Intan Cahaya Dani, Sri Handayani, Sunardi Sunardi   +3 more
openalex   +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

Transforming RNA Degradation into Accurate RNA Detection: RNase I–Assisted Rolling Circle Amplification for Clinical Samples

Angewandte Chemie, EarlyView.
Here, we transform this otherwise destructive enzymatic activity into a powerful diagnostic advantage through an RNase I–assisted rolling circle amplification (RI‐RCA) strategy. By integrating controlled RNase I–mediated RNA digestion with circular DNA templates, this approach enables direct and highly sensitive detection of target RNA sequences. Using
Amal Mathai, Cheng‐Yu Lee, Zijie Zhang, Jimmy Gu, John D. Brennan, Yingfu Li   +5 more
wiley   +2 more sources

Mitochondrial deoxyguanosine kinase is required for female fertility in mice

Acta Biochimica et Biophysica Sinica
Mitochondrial homeostasis plays a pivotal role in oocyte maturation and embryonic development. Deoxyguanosine kinase (DGUOK) is a nucleoside kinase that salvages purine nucleosides in mitochondria and is critical ...
Gao Yake, Dong Rui, Yan Jiacong, Chen Huicheng, Sang Lei, Yao Xinyi, Fan Die, Wang Xin, Zuo Xiaoyuan, Zhang Xu, Yang Shengyu, Wu Ze, Sun Jianwei   +12 more
doaj   +1 more source

Pan2‐Pan3 Complex‐Mediated Deadenylation Enforces mRNA Quality Control for Infection of the Rice Blast Fungus

Advanced Science, EarlyView.
Discovery that deadenylation, rather than transcription, acts as the rate‐limiting step for developmental timing in a plant pathogen. Evidence that P‐body integrity and mRNA decay are mechanistically coupled to rapid cellular differentiation under environmental stress. Identification of Pan2‐Pan3 as a pathogen‐specific “meta‐virulence factor” absent in
Ziwei Lv, Junting Feng, Shenxian Zhou, Zhiguang Qu, Jun Peng, Xiao‐Lin Chen, Deng Chen   +6 more
wiley   +1 more source

Data from Base excision repair of reactive oxygen species–initiated 7,8-dihydro-8-oxo-2′-deoxyguanosine inhibits the cytotoxicity of platinum anticancer drugs

, 2023
Thomas J. Preston, Jeffrey T. Henderson, Gordon P. McCallum, Peter G. Wells   +3 more
openalex   +1 more source