Results 61 to 70 of about 140,942 (311)

Ammonia Detoxification Inhibits Liver Metastasis by Reshaping Hepatic Microenvironment

Advanced Science, EarlyView.
Liver metastasis diverts aspartate into hyperactive pyrimidine synthesis, disrupting urea cycling and causing pathogenic ammonia accumulation. Ammonia dually reprograms the microenvironment by: (1) activating hepatic stellate cells (HSCs) into pro‐fibrotic metastasis‐associated fibroblasts (MAFs), and (2) suppressing anti‐tumor monocytes/macrophages ...
Sumin Sun, Haili Hu, Long Chen, Yuan Gao, Peng Sun, Liming Chen   +5 more
wiley   +1 more source

Standard culture of Paratanytarsus grimmii Schneider, 1885 (Diptera: Chironomidae), for its use in toxicity bioassays. [PDF]

Brazilian Journal of Biology, 2019
The management and use of native species under laboratory conditions is the main difficult for species proposal for its use in bioassays. The present study showed the results about management under controlled conditions of Paratanytarsus grimmii (Diptera:
F. Encina, P De los Ríos, R. Vega, A. Mardones   +3 more
doaj   +1 more source

Dual Covalent Targeting of STING Cysteines 292/309 Disrupts Functional Oligomerization and Enables Potent Antagonist Development

Advanced Science, EarlyView.
We report a rational design strategy for STING antagonists by dual covalent targeting of Cys292/309 in its C‐terminal domain, directly preventing functional oligomerization. Through covalent warhead repurposing, we identified P005091 and revealed its unique dual‐cysteine mechanism.
Yuxuan Zhao, Ling Huang, Wenjing Qin, Bin Zhang, Yang Yang, Xue Chen, Xiaoquan Wang, Weilin Zhou, Feiyang Chen, Zhenyu Li, Liyuan Le, Yiqiu Zhang, Zhen Xiang, Lu Zhang, Fei Wang, Dan Lei, Zi‐zhe Cai, Ying Gao, Yong Chen, Xuecen Wang, Junmin Quan, Shuixing Zhang, Xianzhang Bu, Xin Yue   +23 more
wiley   +1 more source

Micro-organism distribution sampling for bioassays [PDF]

, 1975
Purpose of sampling distribution is to characterize sample-to-sample variation so statistical tests may be applied, to estimate error due to sampling (confidence limits) and to evaluate observed differences between samples. Distribution could be used for
Nelson, B. A.
core   +1 more source

Streptavidins Coordinate Biotin Sequestration and Self‐Resistance Within a Biotin‐Pathway Antibiotic Network

Advanced Science, EarlyView.
A conserved genomic region between two streptavidin genes in Streptomyces packages biosynthetic gene clusters for diverse biotin‐pathway antibiotics: acidomycin, stravidin, the new non‐proteinogenic amino acid ANDA, and the new BioA inhibitor α‐methyl‐KAPA.
Sumire Kurosawa, Jingjun Mo, Xiaotong Diao, Feng Xie, Tingting Wang, Haowen Zhao, Dalei Wu, Rolf Müller, Chengzhang Fu   +8 more
wiley   +1 more source

Planetary Bioresources and Astroecology 1. Planetary Microcosm Bioassays of Martian and Carbonaceous Chondrite Materials: Nutrients, Electrolyte Solutions, and Algal and Plant Responses [PDF]

, 2002
The biological fertilities of planetary materials can be assessed using microcosms based on materials in martian and carbonaceous chondrite meteorites.
Mautner, Michael Noah
core   +2 more sources

Multi‐Omics Profiling Reveals Immunomodulatory and Pro‐Regenerative Effects of a Graphene Oxide–Collagen Scaffold in Massive Rotator Cuff Tears

Advanced Science, EarlyView.
A graphene oxide/collagen scaffold is developed for chronic massive rotator cuff tear repair. The scaffold improves compressive stability, supports reparative mesenchymal differentiation, and modulates the immune microenvironment. In chronic MRCT models, it reduces muscle degeneration, enhances tendon–bone regeneration, and improves functional recovery,
Renwen Wan, Yechuan Deng, Zixin Hu, Yanwei He, Xinting Feng, Jun Ma, Yisheng Chen, Zhijie Zhao, Jie Mei, Zhiheng Lin, Wei Luo, Zhengyuan Fang, Zhufeng Hu, Kunlun Feng, Xinrong Li, Dan Wu, Bowen Han, James Hoi po Hui, Xuanyong Liu, Chen Chen, Gang Chen, Shiyi Chen, Nirong Bao, Jiajun Qiu, Zhiwen Luo   +24 more
wiley   +1 more source

Valorization of Amazonian Fruit Biomass for Biosurfactant Production and Nutritional Applications

Biomass
Processing economically and socio-culturally significant Amazonian fruits—andiroba (Carapa guianensis Aubl.), açai (Euterpe oleracea Mart.), and babassu (Attalea speciosa Mart.
Alan Moura Feio, Giulian César da Silva Sá, Alexandre Orsato, Karoline Leite, Lucas Mariano Siqueira Pimentel, Joane de Almeida Alves, Glenda Soares Gomes, Evelly Oliveira Ramos, Cristina M. Quintella, Sinara Pereira Fragoso, José Augusto Pires Bitencourt, Emilly Cruz da Silva, Sidnei Cerqueira dos Santos   +12 more
doaj   +1 more source

Suscetibilidade de Spodoptera Frugiperda a isolados geográficos de um vírus de poliedrose nuclear Spodoptera Frugiperda susceptibility to nuclear polyhedrosis virus geographical isolates

Pesquisa Agropecuária Brasileira, 1999
O presente trabalho objetivou verificar a suscetibilidade de larvas de segundo ínstar de Spodoptera frugiperda (Smith, 1797) a sete isolados geográficos de um vírus de poliedrose nuclear (VPN), conduzindo-se sete bioensaios no Laboratório de Patologia de
Sérgio Arce Gomez, Flávio Moscardi, Daniel Ricardo Sosa-Gómez   +2 more
doaj   +1 more source

Developmental toxicity of bisphenol A diglycidyl ether (epoxide resin badge) during the early life cycle of a native amphibian species [PDF]

, 2016
Bisphenol A diglycidyl ether (BADGE) is used in packaging materials, in epoxy adhesives, and as an additive for plastics, but it is also a potential industrial wastewater contaminant.
Andersen, Ballesteros-Gómez, Bantle, Beebee, Biedermann, Del Conte, Denoël, Di Rienzo, Durando, Edginton, Ferrari, Hammarling, Herkovits, Herkovits, Herkovits, Hutler Wolkowicz, Hutler Wolkowicz, Mann, Olea, Pisanó, Poole, Pérez-Coll, Räsänen, Sandermann, Semlitsch, Steiner, Stoker, Suárez, Terasaki, Uematsu, Un-jun, Yang   +31 more
core   +1 more source