Results 51 to 60 of about 61,990 (306)

Methyl Ether-Derivatized Sterols and Coprostanol Produced via Thermochemolysis Using Tetramethylammonium Hydroxide (TMAH)

Molecules, 2019
Sterols are widely distributed in nature from lipids in organisms to sediments. As a conventional method, extraction and derivatization with TMS have been applied for sterol analysis, requiring a long preparation time for gas chromatography−mass ...
Masatoshi Nakakuni, Yoshimi Yamasaki, Nonoka Yoshitake, Keiko Takehara, Shuichi Yamamoto   +4 more
doaj   +1 more source

HMGCR‐Driven Cholesterol Metabolism Promotes Osteoarthritis Progression by Accelerating Synovial Fibroblast Senescence

Advanced Science, EarlyView.
In the pathological context of osteoarthritis (OA), the phosphorylation of AKT1 at Ser473 enhances its binding to Lys140 of Insig1, which facilitates the formation of AKT1–Insig1 complex. Subsequently, the activation of AKT1 promotes the phosphorylation of Insig1 at Ser189, potentially enhancing the dissociation of Insig1 from sterol regulatory element‑
Xiaoqi Zhang, Siru Zhou, Xi Liu, Wei Xiang, Xiuqin Peng, Yu Tian, Song Li, Hailin Wang, Bo Liao, Shunzheng Fang, Runze Jin, Jinhui Wu, Chuanqing Bai, Wei Zhang, Bo Huang, Bingfei Li, Lifeng Chen, Lin Chen, Bin Zhang, Zhenhong Ni   +19 more
wiley   +1 more source

Optimized Lipid Nanoparticles with Tail‐Modified Ionizable Lipids for Safer mRNA Delivery

Advanced Science, EarlyView.
Systematic engineering of hydrophobic tail architecture in vitamin B5‐derived ionizable lipids establishes a comprehensive structure–activity relationship framework for mRNA delivery. Combined lipidtail and formulation optimization identifies TM1‐OPT3‐C, a lipid nanoparticle platform that improves efficacy–safety balance through efficient mRNA delivery,
Seo‐Hyeon Bae, Jisun Lee, Jae‐Hun Ahn, Hosam Choi, Huijeong Choi, Jungmin Kim, Minho Kang, Ho Rim Oh, So Hyun Park, Eun Young Oh, Sanghyuk Jeon, Yeeun Lee, Yu‐Sun Lee, Na‐Young Lee, Hee‐Jin Bae, Jina Kwak, Jooil Kim, Nakyung Lee, Beomsun Kang, Ji‐Hye Kim, Eunsaem Song, Daesub Song, Hyunho Yoon, Sang‐Myeong Lee, Hyewon Youn, Kiyoun Lee, Byeong‐Cheol Kang, Jae‐Hwan Nam   +27 more
wiley   +1 more source

Structural basis for plant plasma membrane protein dynamics and organization into functional nanodomains

eLife, 2017
Plasma Membrane is the primary structure for adjusting to ever changing conditions. PM sub-compartmentalization in domains is thought to orchestrate signaling. Yet, mechanisms governing membrane organization are mostly uncharacterized. The plant-specific
Julien Gronnier, Jean-Marc Crowet, Birgit Habenstein, Mehmet Nail Nasir, Vincent Bayle, Eric Hosy, Matthieu Pierre Platre, Paul Gouguet, Sylvain Raffaele, Denis Martinez, Axelle Grelard, Antoine Loquet, Françoise Simon-Plas, Patricia Gerbeau-Pissot, Christophe Der, Emmanuelle M Bayer, Yvon Jaillais, Magali Deleu, Véronique Germain, Laurence Lins, Sébastien Mongrand   +20 more
doaj   +1 more source

Reorganization of Innate Immune Cell Lipid Profiles by Bioinspired Meroterpenoids to Limit Inflammation

Advanced Science, EarlyView.
Resolution pharmacology is an emerging strategy to tackle inflammatory pathologies. Bioinspired meroterpenoids induce a lipid mediator class switch toward inflammation resolution in vitro and in vivo by targeting key nodes in lipid mediator biosynthesis and neutral lipid dynamics.
Lorenz Waltl, David Holubek, Klaus Speck, Raphael Wildermuth, Franz‐Lucas Haut, Stephan Permann, Immanuel Plangger, Christian Steinborn, Zhigang Rao, Danilo D'Avino, Ida Cerqua, Julia Stadler, Fiorentina Roviezzo, Peter Schlenke, Anita Siller, Harald Schennach, Solveigh C. Koeberle, Eva‐Maria Pferschy‐Wenzig, Antonietta Rossi, Thomas Magauer, Andreas Koeberle   +20 more
wiley   +1 more source

Lateral transfer of tetrahymanol-synthesizing genes has allowed multiple diverse eukaryote lineages to independently adapt to environments without oxygen

Biology Direct, 2012
Sterols are key components of eukaryotic cellular membranes that are synthesized by multi-enzyme pathways that require molecular oxygen. Because prokaryotes fundamentally lack sterols, it is unclear how the vast diversity of bacterivorous eukaryotes that
Takishita Kiyotaka, Chikaraishi Yoshito, Leger Michelle M, Kim Eunsoo, Yabuki Akinori, Ohkouchi Naohiko, Roger Andrew J   +6 more
doaj   +1 more source

Investigations of the Evolved Molecular Basis for Terpenoid Biosynthesis in Marine Sponges

Advanced Science, EarlyView.
Confirming and extending a previous observation in another Bubarida sponge, genomic and functional analyses of A. cavernosa reveal that sponges retain the mevalonate pathway and employ single α‐domain T1TSs and UbiA‐type TSs for terpenoid biosynthesis. The absence of T1TSs clustering with other biosynthetic genes tentatively suggests, based on limited ...
Fangyan Chen, Bao Chen, Wenhui Zhang, Guifang Sun, Yao Zhao, Jianpeng Zhang, Baofu Xu   +6 more
wiley   +1 more source

Evaluation of the methods based on triglycerides and sterols for the detection of hazelnut oil in olive oil

Grasas y Aceites, 2007
Two analytical methods, based on the difference between theoretical and empirical triglycerides and the ratios between some free and esterified sterols have been checked to determine their usefulness in detecting the presence of low quantities of any ...
Diego L. García-González, María Viera, Noelia Tena, Ramón Aparicio   +3 more
doaj   +1 more source

An Effector TaCRVP From Tuta Absoluta Oral Secretion Impairs H2O2‐Mediated Plant Defense by Targeting Tomato SlCAT2

Advanced Science, EarlyView.
The Tuta absoluta salivary effector TaCRVP subverts tomato immunity by hijacking host catalase SlCAT2. Through a sophisticated dual mechanism, TaCRVP simultaneously promotes SlCAT2 tetramerization for activation and blocks its SlAdBiL‐mediated degradation for stabilization.
Jianquan Yan, Youdan Zhang, Zhujun Wang, Huatao Tang, Huiping Liu, Zi Chen, Shuai Liu, Jiayi Shi, Lu Peng, Youming Hou   +9 more
wiley   +1 more source

Apolipoprotein F is reduced in humans with steatosis and controls plasma triglyceride‐rich lipoprotein metabolism

Hepatology, EarlyView., 2022
Hepatic APOF transcript levels correlate inversely with plasma TG and hepatic steatosis in humans. ApoF expression in mice promotes VLDL‐TG production and lipoprotein remnant clearance in mice. Abstract Background NAFLD affects nearly 25% of the global population. Cardiovascular disease (CVD) is the most common cause of death among patients with NAFLD,
Audrey Deprince, Nathalie Hennuyer, Sander Kooijman, Amanda C. M. Pronk, Eric Baugé, Viktor Lienard, An Verrijken, Eveline Dirinck, Luisa Vonghia, Eloïse Woitrain, Niels J. Kloosterhuis, Eléonore Marez, Pauline Jacquemain, Justina C. Wolters, Fanny Lalloyer, Delphine Eberlé, Sandrine Quemener, Emmanuelle Vallez, Anne Tailleux, Mostafa Kouach, Jean‐Francois Goossens, Violeta Raverdy, Bruno Derudas, Jan Albert Kuivenhoven, Mikaël Croyal, Bart van de Sluis, Sven Francque, François Pattou, Patrick C. N. Rensen, Bart Staels, Joel T. Haas   +30 more
wiley   +1 more source