Results 71 to 80 of about 14,709 (260)

Substrate specificity of a branch of aromatic dioxygenases determined by three distinct motifs

Nature Communications
The inversion of substrate size specificity is an evolutionary roadblock for proteins. The Duf4243 dioxygenases GedK and BTG13 are known to catalyze the aromatic cleavage of bulky tricyclic hydroquinone.
Chengsen Cui, Lu-Jia Yang, Zi-Wei Liu, Xian Shu, Wei-Wei Zhang, Yuan Gao, Yu-Xuan Wang, Te Wang, Chun-Chi Chen, Rey-Ting Guo, Shu-Shan Gao   +10 more
doaj   +1 more source

Glucose and glutamine availability regulate HepG2 transcriptional responses to low oxygen [version 1; referees: 2 approved]

Wellcome Open Research, 2018
Background: Little is known about the impact of nutrients on cellular transcriptional responses, especially in face of environmental stressors such as oxygen deprivation.
Alvina G. Lai, Donall Forde, Wai Hoong Chang, Fang Yuan, Xiaodong Zhuang, Claudia Orbegozo Rubio, Chun-Xiao Song, Jane A. McKeating   +7 more
doaj   +1 more source

Degradation Mechanisms, Encapsulation‐Based Stabilization, and Analytical Detection of Vitamin A

Journal of the American Oil Chemists' Society, EarlyView.
ABSTRACT Vitamin A is an important lipid‐soluble micronutrient essential for vision, immune function, and overall growth and development. However, vitamin A is unstable and susceptible to environmental factors because of its conjugated structure and inherent chemical reactivity.
Latheesha Abeywardana, Thambaramala V. Gamage, Tanoj K. Singh, Shuaifei Zhao, Amy Logan, Lingxue Kong   +5 more
wiley   +1 more source

Longitudinal Modulation of the Gut Microbiome and Growth Performance by Phytochemicals as Antibiotic Alternatives in Swine Production

Animal Research and One Health, EarlyView.
We conducted a longitudinal trial across nursery, growing, and finishing phases, showing that phytochemical supplementation as a potential antibiotic alternative reduced potential pathogens and promoted beneficial Lactobacillus amylovorus in the nursery phase, and enriched amino acid and carbohydrate metabolism pathways (prediction) during finishing ...
Ziyu Liu, Samantha Howe, Yang Tian, Alisun N. Watson, Jason E. Farrar, Christopher E. Randolph, Jaime Andrés Ángel Isaza, Álvaro José Uribe, Yan Huang, Michael Looper, Jiangchao Zhao, Tsungcheng Tsai   +11 more
wiley   +1 more source

Biodegradation of paracetamol by Amycolatopsis sp. Poz 14

BMC Research Notes
Objective Paracetamol is widely used throughout the world and its high consumption has led to its detection in the environment as an emerging contaminant. In this work, the actinobacterium Amycolatopsis sp.
Janet Jan-Roblero, Blanca M. Alanis-Sánchez, Luis Vallejo-Castillo, Sonia M. Pérez-Tapia, Juan C. Cancino-Diaz, Juan A. Cruz-Maya   +5 more
doaj   +1 more source

Spray‐Dried Engineered Escherichia coli Whole‐Cell Biocatalysts Enable Cell Recycling and In Vivo α‐Ketoglutarate and NADPH Regeneration for Efficient Codeine Manufacture

Biotechnology and Bioengineering, EarlyView.
ABSTRACT A recombinant whole‐cell biocatalytic approach provides several advantages over isolated enzymes, such as improved enzyme stability, in vivo cofactor regeneration, and the facilitation of cascade reactions within a single cell. Whole‐cell biocatalysis has gained attention in medicinal opioid production, due to its technical and economic ...
Ali Jahanian, Carlos Horacio Luna‐Flores, Xu Li, Sally L. Gras, Robert E. Speight   +4 more
wiley   +1 more source

Reprogramming tumor immune microenvironment by ultrasound‐responsive nanoplatforms for enhanced cancer immunotherapy

BMEMat, EarlyView.
Ultrasound‐responsive nanoplatforms reprogram the tumor immune microenvironment by targeting tumor cells, immune cells, and non‐immune stromal cells to enhance the efficacy of cancer immunotherapy. Abstract Cancer immunotherapy represents a significant advancement in cancer treatment by enhancing the specific recognition and elimination of cancer cells.
Shilong Zhao, Rui Qu, Zan Dai, Xiqun Jiang, Xu Zhen   +4 more
wiley   +1 more source

Vitamin C increases 5-hydroxymethylcytosine level and inhibits the growth of bladder cancer

Clinical Epigenetics, 2018
Background 5-Hydroxymethylcytosine (5hmC) is converted from 5-methylcytosine (5mC) by a group of enzymes termed ten-eleven translocation (TET) family dioxygenases.
Ding Peng, Guangzhe Ge, Yanqing Gong, Yonghao Zhan, Shiming He, Bao Guan, Yifan Li, Ziying Xu, Han Hao, Zhisong He, Gengyan Xiong, Cuijian Zhang, Yue Shi, Yuanyuan Zhou, Weimin Ci, Xuesong Li, Liqun Zhou   +16 more
doaj   +1 more source

A nanoplatform that induces dual‐amino acid deprivation to reverse tumor immunosuppression and enhance metabolic immunotherapy

BMEMat, EarlyView.
ZIF‐8‐based nanoparticles co‐delivering CB‐839 (glutaminase inhibitor) and 1‐MT (IDO1 inhibitor), dual‐targeting glutamine/tryptophan metabolism to induce immunogenic cell death, activate STING, block kynurenine production, reverse immunosuppression, and enhance cancer immunotherapy to suppress primary/distant tumors.
Wenli Ning, Yunhan Sun, Mingyang Li, Shilu Liu, Fangjie Yi, Hongfei Wang, Ruibing Bai, Dongdong Liu, Fen Zhao, Guiqiang Zhang, Xiao Fu   +10 more
wiley   +1 more source

Intestinal microbiome alterations in pediatric epilepsy: Implications for seizures and therapeutic approaches

Epilepsia Open, EarlyView.
Abstract The intestinal microbiome plays a pivotal role in maintaining host health through its involvement in gastrointestinal, immune, and central nervous system (CNS) functions. Recent evidence underscores the bidirectional communication between the microbiota, the gut, and the brain and the impact of this axis on neurological diseases, including ...
Teresa Ravizza, Greta Volpedo, Antonella Riva, Pasquale Striano, Annamaria Vezzani   +4 more
wiley   +1 more source