Results 41 to 50 of about 15,048 (225)

Synthesis of N-7-Substituted Purines from Imidazole Precursors

Molecules, 1999
Synthesis of purines and purine mono-1-oxides from the respective 5-substituted 4-nitroimidazole derivatives is described. The commercially available 4-nitroimidazole, in a few simple steps (including Vicarious Nucleophilic Substitution of Hydrogen), was
Stanislaw Ostrowski
doaj   +1 more source

Preserved Spermatogenesis and Hormonal Function in Men Receiving a Pretomanid Regimen (BPaMZ) for Pulmonary Drug‐Resistant Tuberculosis

Clinical Pharmacology &Therapeutics, EarlyView.
Pretomanid is a component of the World Health Organization‐recommended treatment regimen for drug‐resistant tuberculosis in patients aged ≥ 14 years. While preclinical rodent studies identified testicular toxicity as a potential clinical liability at elevated doses, no corresponding effects were observed in nonhuman primates nor clinical hormone ...
Pauline Howell, Antonio Lombardi, William Brumskine, Lali Mikiashvili, Kim Boekelheide, Joanna Moreira, Alda Holsta, Matthew Betteridge, Lindsay Thompson, Angela Crook, Paul Bruinenberg, Maria Beumont, Eugene Sun, Francesca Conradie   +13 more
wiley   +1 more source

Synthesis and Preliminary Evaluation of a Novel 18F-Labeled 2-Nitroimidazole Derivative for Hypoxia Imaging

Frontiers in Oncology, 2021
ObjectiveHypoxia is prevalent in tumors and plays a pivotal role in resistance to chemoradiotherapy. 18F-MISO (18F-labeled fluoromisonidazole) is currently the preferred choice of PET hypoxia tracers in clinical practice, but has severe disadvantages ...
Jing Lu, Jing Lu, Chi Zhang, Xi Yang, Xi Yang, Xi-Juan Yao, Qun Zhang, Xin-Chen Sun   +7 more
doaj   +1 more source

Implantable drug delivery system: Frontiers of medicine‐engineering interdisciplinary

Interdisciplinary Medicine, EarlyView.
This review systematically summarizes the driving mechanisms of implantable on‐demand drug delivery systems (IDDS), including endogenous, exogenous, and closed‐loop strategies. It highlights the pivotal roles of flexible electronics and miniaturization in enhancing the tissue conformity and spatial adaptability.
Yu Zeng, Rongtai Su, Manyu Zhao, Xin Song, Ran Liu, Yuhao Zhou, Chaojuan Yang, Yanli Jiao, Xiao‐Wei Xiang, Lingqian Chang   +9 more
wiley   +1 more source

Novel nitroimidazole alkylsulfonamides as hypoxic cell radiosensitisers

, 2014
A novel class of nitroimidazole alkylsulfonamides have been prepared and evaluated as hypoxia-selective cytotoxins and radiosensitisers. The sulfonamide side chain markedly influences the physicochemical properties of the analogues: lowering aqueous ...
Pruijn, Frederik, Wang, Jingli, Gu, Yongchuan, Wilson, William, Hicks, Kevin, Hong, Cho, Anderson, Robert, Bonnet, Muriel, Hay, Michael   +8 more
core   +1 more source

A neutrophil-biomimic platform for eradicating metastatic breast cancer stem-like cells by redox microenvironment modulation and hypoxia-triggered differentiation therapy

Acta Pharmaceutica Sinica B, 2023
Metastasis accounts for 90% of breast cancer deaths, where the lethality could be attributed to the poor drug accumulation at the metastatic loci. The tolerance to chemotherapy induced by breast cancer stem cells (BCSCs) and their particular redox ...
Yongchao Chu, Yifan Luo, Boyu Su, Chao Li, Qin Guo, Yiwen Zhang, Peixin Liu, Hongyi Chen, Zhenhao Zhao, Zheng Zhou, Yu Wang, Chen Jiang, Tao Sun   +12 more
doaj   +1 more source

Advanced Molecular Imaging Probes for Skeletal Diseases: Current Progress and Future Perspectives

iRADIOLOGY, EarlyView.
This review summarizes the potential molecular imaging techniques and probes for common orthopedic diseases, such as trauma, infection, metabolism, tumor, joint, spine and other fields, aiming to provide a basis for the development of a new generation of molecular imaging probes.
Shuo Guo, Yuling Cui, Zhiye Fan, Chenxin Jiang, Bowen Fu, Guangbin Cui, Yanli He   +6 more
wiley   +1 more source

Tumor Hypoxia Imaging Agents in Nuclear Medicine

Trends in Peptide and Protein Sciences, 2017
Hypoxia is due to imbalance in oxygen supply and oxygen demand compromising biological functions of cells. Since tumor hypoxia results in angiogenesis, apoptosis, metastasis, tumor aggressiveness and treatment failure, in vivo measurement is required ...
Mahtab Mohammadpour, Soraya Shahhosseini
doaj   +1 more source

Optimising hypoxia PET imaging and its applications in guiding targeted radiation therapy for non‐small cell lung cancer: a scoping review

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 106-118, March 2025.
This review article reports that quantification of hypoxic volumes using PET in the pre‐radiation therapy setting is of prognostic value and indicative of treatment response in non‐small cell lung cancer. Abstract Introduction Non‐small cell lung cancer (NSCLC) is the leading cause of cancer‐related death. Definitive treatment includes chemotherapy and
Carol Marks, Michelle Leech
wiley   +1 more source

Peptide‐based responsive molecular fluorescent probes for precision oncology

Responsive Materials, EarlyView.
Peptide‐based responsive fluorescent probes have emerged as adaptive functional materials for precision tumor theranostics, combining tumor‐selective recognition, programmable stimulus responsiveness, and modular tunability. They enable high‐contrast imaging, intraoperative guidance, real‐time monitoring, and multimodal applications, while next ...
Xing Wang, Wen Liu, Jiahao Zhang, Wanqi Wang, Zhicheng Jin, Yuqi Tang, Quan Li   +6 more
wiley   +1 more source