Results 271 to 280 of about 471,738 (360)

GC-MS analysis of chemical composition and determination of antimicrobial activity of Laurel Leaf Extracts prepared by different methods and solvents

openalex   +1 more source

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

Advanced Science, EarlyView.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo, Zihua Guo, Yi Zhou, Yunhui Zhang, Haojin Cheng, Rebecca Devine, Chuang Sun, Ronghua Liu, Yanfen Zheng, Andrew J. Gates, Jonathan D. Todd, Xiao‐Hua Zhang   +11 more
wiley   +1 more source

Correction: An improved GC-MS-SIM analytical method for determination of pendimethalin residue in commercial crops (leaf and soils) and its validation. [PDF]

PLoS One
Paul A, Majumder S, Prasad LK, Madhav MS, Johnson N, Padmaja K, Singh S.   +6 more
europepmc   +1 more source

Balanced Expression of the Diiron Oxygenase BioE Is Essential for Biotin Homeostasis in Elizabethkingia meningoseptica

Advanced Science, EarlyView.
BioE is a new diiron oxygenase that catalyzes the conversion of long‐chain acyl groups into pimeloyl thioester, initiating biotin synthesis. The overexpression of EmBioE disrupts lipid metabolic homeostasis, requiring repressor BioL to maintain a balance between long‐chain fatty acids and biotin synthesis.
Meng Zhang, Ying‐ying Fu, Xiaoqiang Yang, Qiuying Qin, Xinyu Su, Jiaming Fang, Yanhua Kang, Qingwen He, Zhi Ruan, Yongchang Xu   +9 more
wiley   +1 more source

Determination of Rose Alcohol Composition in Extracts and Flowers via Headspace Solid-Phase Microextraction and GC-MS. [PDF]

ACS Meas Sci Au
Hupp AM.
europepmc   +1 more source

Volatile composition of three species of wild mushrooms from Trás-os-Montes region using HS-SPME and GC/IT-MS

, 2010
L. S. C. Nogueira, Ricardo Malheiro, Paula Guedes de Pinho, Paula Baptista   +3 more
openalex   +1 more source

Astrocytic PERK Deficiency Drives Prefrontal Circuit Dysfunction and Depressive‐Like Behaviors

Advanced Science, EarlyView.
Chen et al. show that the endoplasmic reticulum (ER) stress sensor PERK is downregulated in prefrontal cortex (PFC) astrocytes in major depressive disorder and in chronic‐stress mouse models. In young mice, astrocyte‐specific PERK loss reduces the synaptogenic cue thrombospondin‐1 (TSP1), leading to synaptic and circuit deficits and depressive‐like ...
Kai Chen, Riya Gupta, Yosuke M. Morizawa, Yu Qin, Xingyu Du, Cynthia Pang, Osama Al‐Dalahmah, Maura B. Dupont, Guang Yang   +8 more
wiley   +1 more source

Application of Gas Chromatographic Retention Indices to GC and GC-MS Identification with Variable Limits for Deviations Between Their Experimental and Reference Values. [PDF]

Molecules
Zenkevich IG.
europepmc   +1 more source

Alimentos minimamente processados: avaliação do perfil volátil de abacaxi (Ananas comosus L.) em diferentes períodos e temperaturas de armazenagem empregando HS-SPME e GC-MS

, 2016
Francielle Crocetta Turazzi
openalex   +1 more source

Homoisoflavanone Delays Colorectal Cancer Progression via DNA Damage‐Induced Mitochondrial Apoptosis and Parthanatos‐Like Cell Death

Advanced Science, EarlyView.
Homoisoflavanone (HIF), a bioactive compound isolated from Polygonatum kingianum, selectively suppresses colorectal cancer progression by inducing DNA damage‐mediated mitochondrial apoptosis and parthanatos‐like cell death. HIF triggers mitochondrial dysfunction, including depolarized membrane potential, elevated ROS, and ATP depletion, while impairing
Hongjie Fan, Huzi Zhao, Pei Zhang, Pengfei Yu, Yunfei Ji, Gang Chen, Hongli Jin, Yanfang Liu, Jin Liu, Zhe‐Sheng Chen, Aiping Lyu, Xinmiao Liang, Yang Chen   +12 more
wiley   +1 more source