Results 41 to 50 of about 56,530 (211)

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

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

Metabolism of dietary Δ8-sterols and 9β, 19-cyclopropyl sterols by Locusta migratoria

, 1989
International audienceAdult female locusts were reared on wheat seedlings (experimental wheat) containing more than 97% of 9,10-cyclopropyl sterols and Δ8-sterols and less than 2% of Δ5-sterols.
Benveniste, Pierre, Hoffmann, Jules A., Charlet, Maurice, Corio-Costet, Marie-France   +3 more
core   +1 more source

The mysterious route of sterols in oomycetes.

, 2021
Sterols are a class of lipids with essential roles in sustaining the domain structure of cell membranes and regulating biological processes [1]. Human health is affected by high cholesterol levels [2]; drugs preventing this are widely used. Also striking
Wang, Weizhen, Govers, Francine, Weizhen Wang, Francine Govers, Liu, Xili, Xili Liu   +5 more
core   +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

Sterols regulate ER-to-Golgi transport of SREBP cleavage activating protein (SCAP)

, 2011
Presents Cholesterol homeostasis in mammalian cells is regulated at the level of transcription through feedback inhibition. When cells are depleted of sterols, transcription of genes required for synthesis and uptake of cholesterol, such as HMG-CoA ...
Espenshade, Peter J.
core   +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

Setting the curve: the biophysical properties of lipids in mitochondrial form and function

Journal of Lipid Research
Mitochondrial membranes are defined by their diverse functions, complex geometries, and unique lipidomes. In the inner mitochondrial membrane, highly curved membrane folds known as cristae house the electron transport chain and are the primary sites of ...
Kailash Venkatraman, Christopher T. Lee, Itay Budin   +2 more
doaj   +1 more source

Minor Components and Oxidative Stability as Determined by DSC of Fractionated and Lipase-catalyzed Structured Rapeseed Oil

Grasas y Aceites, 2013
Natural fats and oils can be modified by various methods to prepare products with desired physical, chemical and nutritional properties. The enrichment and retention of the minor lipid components, the incorporation of capric acid and oxidative stability ...
M. A. Alim, P. Wessman, P. C. Dutta
doaj   +1 more source

Changes in the composition of pumpkin seeds (Cucurbita moschata) during development and maturation

Grasas y Aceites, 2015
Changes in the chemical and lipid composition of Cucurbita moschata seeds and seed oils at different stages of development were investigated. The oil content of the seeds at 30, 60 and 90 days after flowering was 10.7, 41.1, and 47.1%, respectively.
Zh. Y. Petkova, G. A. Antova
doaj   +1 more source