Results 61 to 70 of about 83,751 (269)

Metabolic Responses and Oxidative Stress Adaptation Mechanisms of the Pituitary Gland in the Tiger Puffer Under Low-Temperature Stress

Fishes
To explore the induction of low temperature the Tiger Puffer (Takifugu rubripes) In this study, the influence of temperature on the pituitary gland during masculinization was investigated through chronic hypothermia stress experiments.
Yifan Li, Taicheng Li, Meihui Yao, Chuan Li, Zibin Jiang, Hongyu Pan, Wei Wang, Yajuan Li, He Zhou   +8 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

The Evolution of Three Schizothoracinae Species from Two Major River Systems in Northwest China Based on Otolith Morphology and Skeletal Structure

Biology
Schizothoracinae species are the largest group of Cypriniformes that readily adapt to the natural conditions of the Qinghai-Tibet Plateau. This group has habitat characteristics and distribution patterns centered on the Qinghai-Tibet Plateau.
Chengxin Wang, Linghui Hu, Yong Song, Haoyang Xie, Liting Yang, Gulden Serekbol, Bin Huo, Shengao Chen   +7 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Effects of Dietary ARA/EPA Ratio on Growth Performance, Antioxidant Capacity and Lipid Metabolism-Related Genes of Juvenile Fat Greenling (Hexagrammos otakii)

Fishes
Essential fatty acids are extremely important nutrients in the diet of fish, and the balance between arachidonic acid (ARA) and eicosapentaenoic acid (EPA) is crucial for the healthy growth of fish.
Fengzhi Lu, Yafeng Guo, Dandan Cui, Wenyuan Hua, Shuai Wang, Lei Peng, Yan Chen, Jian Han, Wei Wang   +8 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Lycium barbarum Polysaccharides Alleviate High-Fat Diet–Induced Lipid Metabolism Disorder in Takifugu obscurus

Aquaculture Nutrition
Excessive dietary fat intake disrupts lipid metabolism and induces oxidative stress and inflammation in aquatic species, impairing growth and health. In Takifugu obscurus, a widely cultivated fish species in China, fat predominantly accumulates in the ...
Shenglin Yue, Fuqiang Wang, Zixiang Lin, Yiyang Huang, Tinghao Ma, Yingkang Sun, Yuzhe Han, Tongjun Ren, Xiaoran Zhao, Xiuli Wang   +9 more
doaj   +1 more source

Synthesis of biosafe spirulina-derived carbon dots and their fluorescence imaging in zebrafish

Results in Chemistry
Carbon dots (CDs) have emerged as promising fluorescent nanomaterials owing to their superior optical properties and favorable biocompatibility. In the present study, environmentally friendly CDs were synthesized from spirulina via a hydrothermal ...
Yue Wang, Zhizhi Gu, Jingyi Dong, Cunguang Liu, Jie Zhu, Zixu Wang, Jiaying Li, Meichen Lu, Jian Han, Shengnan Cao, Zhuang Xue, Yan Chen, Liyong Chen, Wei Wang   +13 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source