Academic literature on the topic 'Lipids Aldehydes'

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Journal articles on the topic "Lipids Aldehydes"

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Keller, Markus A., Katrin Watschinger, Georg Golderer, Gabriele Werner-Felmayer, and Ernst R. Werner. "Fatty aldehyde dehydrogenase, the enzyme downstream of tetrahydrobiopterin-dependent alkylglycerol monooxygenase." Pteridines 24, no. 1 (2013): 105–9. http://dx.doi.org/10.1515/pterid-2013-0004.

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AbstractThe tetrahydrobiopterin-dependent degradation of ether lipids by alkylglycerol monooxygenase (AGMO) produces fatty aldehydes, which are toxic to cells. Therefore, it is of great physiological importance that these harmful compounds are converted into their corresponding, less toxic fatty acids by fatty aldehyde dehydrogenase (FALDH). Dysfunction of this enzyme causes Sjögren-Larsson syndrome. This severe inherited disorder is accompanied by symptoms such as ichthyosis, mental retardation and spasticity. Surprisingly, fatty alcohols and not fatty aldehydes were found to accumulate in fi
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Matsui, K., S. Kurishita, A. Hisamitsu, and T. Kajiwara. "A lipid-hydrolysing activity involved in hexenal formation." Biochemical Society Transactions 28, no. 6 (2000): 857–60. http://dx.doi.org/10.1042/bst0280857.

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Short-chain aldehydes such as (3Z)-hexenal and n-hexanal are formed from lipids through sequential actions of lipid-hydrolysing, lipoxygenase and fatty acid hydroperoxide lyase activities. The aldehydes are formed upon wounding of plant tissues, and are reported to have bactericidal and fungicidal activities. Furthermore, it has been reported that the aldehydes can induce expression of a subset of genes involved in disease resistance and that they are involved in a defence response against insect herbivores. Although several genes encoding lipoxygenases and the lyases have been isolated, and c
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Barrera, Giuseppina, Stefania Pizzimenti, Martina Daga, et al. "Lipid Peroxidation-Derived Aldehydes, 4-Hydroxynonenal and Malondialdehyde in Aging-Related Disorders." Antioxidants 7, no. 8 (2018): 102. http://dx.doi.org/10.3390/antiox7080102.

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Among the various mechanisms involved in aging, it was proposed long ago that a prominent role is played by oxidative stress. A major way by which the latter can provoke structural damage to biological macromolecules, such as DNA, lipids, and proteins, is by fueling the peroxidation of membrane lipids, leading to the production of several reactive aldehydes. Lipid peroxidation-derived aldehydes can not only modify biological macromolecules, by forming covalent electrophilic addition products with them, but also act as second messengers of oxidative stress, having relatively extended lifespans.
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Gülz, P. G., R. B. N. Prasad, and E. Müller. "Surface Structures and Chemical Composition of Epicuticular Waxes during Leaf Development of Fagus sylvatica L." Zeitschrift für Naturforschung C 47, no. 3-4 (1992): 190–96. http://dx.doi.org/10.1515/znc-1992-3-404.

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Abstract The surface structures of beech ( Fagus sylvatica) leaf waxes were studied by SEM and correlated with chemical compositions of the extracted wax lipids during one vegetation period. The very young leaflets just unfolding from buds contained already a wax layer without any wax sculptures or crystalloids. This wax layer is quite different in yield and composition to that of mature leaves. With the unfolding of beech leaves, a dynamic biosynthesis of several wax lipids was started, but the biosynthesis of wax esters was not continued further. Ten days after leaf unfolding the de novo bio
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Prasad, R. B. N., and Paul-Gerhard Giilz. "Developmental and Seasonal Variations in the Epicuticular W axes of Beech Leaves (Fagus sylvatica L.)." Zeitschrift für Naturforschung C 45, no. 7-8 (1990): 805–12. http://dx.doi.org/10.1515/znc-1990-7-810.

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Abstract The leaf cpicuticular waxes of beech trees (Fagus sylvatica L.) were analyzed continuously all over one vegetation period with preparations every week from April 24 to November 15. The folded leaves in buds contained hydrocarbons, wax esters, benzyl acyl esters, alcohols and fatty acids from the beginning, but not aldehydes. Aldehydes were identified only after 10 days of leaf unfolding. The biosynthesis of wax lipids was rapid in the first three to five weeks till May 30. During this time the wax lipids were doubled quantitatively and the chain length spccifity has also changed in al
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PAPPA, Aglaia, Tia ESTEY, Rizwan MANZER, Donald BROWN, and Vasilis VASILIOU. "Human aldehyde dehydrogenase 3A1 (ALDH3A1): biochemical characterization and immunohistochemical localization in the cornea." Biochemical Journal 376, no. 3 (2003): 615–23. http://dx.doi.org/10.1042/bj20030810.

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ALDH3A1 (aldehyde dehydrogenase 3A1) is expressed at high concentrations in the mammalian cornea and it is believed that it protects this vital tissue and the rest of the eye against UV-light-induced damage. The precise biological function(s) and cellular distribution of ALDH3A1 in the corneal tissue remain to be elucidated. Among the hypotheses proposed for ALDH3A1 function in cornea is detoxification of aldehydes formed during UV-induced lipid peroxidation. To investigate in detail the biochemical properties and distribution of this protein in the human cornea, we expressed human ALDH3A1 in
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Hill, Bradford G., Petra Haberzettl, Yonis Ahmed, Sanjay Srivastava, and Aruni Bhatnagar. "Unsaturated lipid peroxidation-derived aldehydes activate autophagy in vascular smooth-muscle cells." Biochemical Journal 410, no. 3 (2008): 525–34. http://dx.doi.org/10.1042/bj20071063.

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Proteins modified by aldehydes generated from oxidized lipids accumulate in cells during oxidative stress and are commonly detected in diseased or aged tissue. The mechanisms by which cells remove aldehyde-adducted proteins, however, remain unclear. Here, we report that products of lipid peroxidation such as 4-HNE (4-hydroxynonenal) and acrolein activate autophagy in rat aortic smooth-muscle cells in culture. Exposure to 4-HNE led to the modification of several proteins, as detected by anti-protein–4-HNE antibodies or protein-bound radioactivity in [3H]4-HNE-treated cells. The 4-HNE-modified p
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Takatori, Sho, and Toyoshi Fujimoto. "Microscopy of membrane lipids: how precisely can we define their distribution?" Essays in Biochemistry 57 (February 6, 2015): 81–91. http://dx.doi.org/10.1042/bse0570081.

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Membrane lipids form the basic framework of biological membranes by forming the lipid bilayer, but it is becoming increasingly clear that individual lipid species play different functional roles. However, in comparison with proteins, relatively little is known about how lipids are distributed in the membrane. Several microscopic methods are available to study membrane lipid dynamics in living cells, but defining the distribution of lipids at the submicrometre scale is difficult, because lipids diffuse quickly in the membrane and most lipids do not react with aldehydes that are commonly used as
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Hirayama, Teruhisa, Shinji Miura, Mariko Araki, Yoshiko Takeo, and Tetsushi Watanabe. "Fluorometric Method for Determination of 1,2-Unsaturated Aldehydes in Autooxidized Lipids with 2,4-Diaminotoluene." Journal of AOAC INTERNATIONAL 73, no. 4 (1990): 590–94. http://dx.doi.org/10.1093/jaoac/73.4.590.

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Abstract A simple fluorometric method has been developed to determine 1,2-unsaturated aldehydes in autooxidized lipids. 1,2- Unsaturated aldehydes were allowed to react with 2,4-diamlnotoluene in acidic condition and the products, 7-amlno-6- methylqulnoline derivatives, were determined by a fluorometric procedure at 394 nm (excitation wavelength) and 494 nm (emission wavelength). Finally, 1902.9, 1738.8, and 2149.2 μg/g of 1,2-unsaturated aldehydes as 2-propenal were detected in 20-h autooxidized methyl oleate, methyl llnoleate, and methyl llnolenate, which contained 98.5, 223.2, and 355.6 μg/
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Skinner, Joanna, Payal Arora, Nicole McMath та Meera Penumetcha. "Determination of Oxidized Lipids in Commonly Consumed Foods and a Preliminary Analysis of Their Binding Affinity to PPARγ". Foods 10, № 8 (2021): 1702. http://dx.doi.org/10.3390/foods10081702.

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Foods rich in poly unsaturated fatty acids (PUFA) are vulnerable to oxidation. While it is well established that endogenously derived oxidized lipids are ligands of the transcription factor PPARγ, the binding ability of diet-derived oxidized lipids is unknown. Our two-fold objective was to determine the oxidized lipid content and PPARγ binding ability of commonly consumed foods. Extracted food lipids were assayed for the peroxide value, conjugated dienes, and aldehydes, and PPARγ binding was assessed by an in vitro PPARγ ligand screening assay. Oxidized lipids were present in all foods tested
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Dissertations / Theses on the topic "Lipids Aldehydes"

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Dubois, Janie. "Determination of peroxide value and anisidine value using Fourier transform infrared spectroscopy." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23391.

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Lipid oxidation has important consequences in the edible oil industry, producing compounds with sensory impact and thus reducing the economic value of the products. This work focused on the development of two Fourier transform infrared (FTIR) spectroscopy methods for the measurement of peroxide value (PV) and anisidine value (AV), representing the primary and secondary oxidation products of edible oils.<br>The infrared method developed for PV determination was based on a mathematical treatment by the partial least squares method of the information contained in the spectral region between 3750
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Kaleem, Muhammad. "Effets des produits d'oxydation de l'acide linoléique sur sa biohydrogénation ruminale." Thesis, Toulouse, INPT, 2013. http://www.theses.fr/2013INPT0042/document.

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La biohydrogénation (BH) ruminale des acides gras polyinsaturés (AGPI) est à l’origine de la production d’AG trans pouvant se retrouver dans les productions de ruminants, dont le lait. Parmi ceux-ci, les isomères t11 auraient des effets bénéfiques pour la santé des consommateurs alors que les isomères t10 sont potentiellement défavorables. En élevage, l’apport de graines oléagineuses dans la ration des vaches permet d’augmenter la teneur du lait en ces acides gras. Or ces graines sont souvent distribuées chauffées pour améliorer leur valeur nutritionnelle. Expérimentalement, les effets des gra
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Delve, Robin. "Studies on cytotoxic aldehydes generated during lipid peroxidation in vivo." Thesis, University of Exeter, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317350.

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Wheatley, Robert Alan. "Aldehydic lipid peroxidation products : flow analysis using spectrophotometry and chemiluminescence." Thesis, University of Hull, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363331.

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Stewart, Benjamin J. "Characterization of the effects of the lipid peroxidation products 4-hydroxynonenal and 4-oxononenal on hepatic lipid accumulation, VLDL assembly, secretion, and microtubules : relevance to alcoholic liver disease /." Connect to full text via ProQuest. Limited to UCD Anschutz Medical Campus, 2008.

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Thesis (Ph.D. in Toxicology) -- University of Colorado Denver, 2008.<br>Typescript. Includes bibliographical references (leaves 111-122). Free to UCD affiliates. Online version available via ProQuest Digital Dissertations;
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Mattos, Thiago Cardoso Genaro de. "Modificação de proteínas por produtos de oxidação do colesterol: mecanismos e implicações biológicas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/46/46131/tde-01102014-075856/.

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O colesterol é um importante componente das membranas celulares em eucariotos superiores, desempenhando papéis estruturais e funcionais. O colesterol possui uma insaturação em sua estrutura sendo, portanto, alvo de oxidação mediada por espécies reativas de oxigênio e/ou nitrogênio. A oxidação não enzimática do colesterol gera, como produtos primários, os hidroperóxidos de colesterol. Tais moléculas, por sua vez, são altamente reativas e podem reagir com metais livres e/ou metaloproteínas, trazendo consequências à celula. Neste sentido, o primeiro capítulo deste trabalho tem como objetivo estud
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Carbone, David L. "Effects of the lipid peroxidation product 4-hydroxy-2-nonenal on protein degradation and refolding pathways /." Connect to full text via ProQuest. IP filtered, 2005.

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Kulbe, Jacqueline Renee. "NEUROPROTECTIVE STRATEGIES FOLLOWING EXPERIMENTAL TRAUMATIC BRAIN INJURY: LIPID PEROXIDATION-DERIVED ALDEHYDE SCAVENGING AND INHIBITION OF MITOCHONDRIAL PERMEABILITY TRANSITION." UKnowledge, 2019. https://uknowledge.uky.edu/neurobio_etds/22.

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Traumatic brain injury (TBI) represents a significant health crisis. To date there are no FDA-approved pharmacotherapies available to prevent the neurologic deficits caused by TBI. Following TBI, dysfunctional mitochondria generate reactive oxygen and nitrogen species, initiating lipid peroxidation (LP) and the formation of LP-derived neurotoxic aldehydes, which bind mitochondrial proteins, exacerbating dysfunction and opening of the mitochondrial permeability pore (mPTP), resulting in extrusion of mitochondrial sequestered calcium into the cytosol, and initiating a downstream cascade of calpa
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Sampey, Brante P. "Studies of the adduction of hepatocellular proteins by 4-HNE in animals [sic] models of alcoholic liver disease : systematic analysis of hepatocellular Erk 1/2 modulation and dysregulation of the Erk-Elk-AP1 signal transduction pathway /." Connect to full text via ProQuest. IP filtered, 2005.

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Thesis (Ph.D. in Toxicology) -- University of Colorado, 2005.<br>Typescript. Includes bibliographical references (leaves 141-156). Free to UCDHSC affiliates. Online version available via ProQuest Digital Dissertations;
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Gu, Xiaodong. "Oxidative lipid fragmentation; New mechanisms, synthesis and reactions of putative intermediates." Case Western Reserve University School of Graduate Studies / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1275497811.

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Book chapters on the topic "Lipids Aldehydes"

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Dianzani, Mario Umberto, Luciana Paradisi, Maurizio Parola, Giuseppina Barrera, and Maria Armida Rossi. "Action of the Aldehydes Derived from Lipid Peroxidation on Isolated Liver Plasmamembranes." In Free Radicals, Lipoproteins, and Membrane Lipids. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-7427-5_17.

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van der Vliet, Albert. "Oxidative Modifications of Proteins and Lipids by Cigarette Smoke (CS). A Central Role for Unsaturated Aldehydes in CS-Mediated Airway Inflammation." In Cigarette Smoke and Oxidative Stress. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-32232-9_3.

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Petersen, D. R., J. J. Hjelle, and D. Y. Mitchell. "Aldehydic Products of Lipid Peroxidation: Substrates or Inhibitors of Hepatic Aldehyde Dehydrogenase?" In Enzymology and Molecular Biology of Carbonyl Metabolism 3. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-5901-2_9.

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Shibamoto, Takayuki, and Masahiro Horiuchi. "Role of Aldehydes in Cooked Fish Flavors." In Flavor and Lipid Chemistry of Seafoods. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0674.ch003.

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Siangdung, Wipawan, Hirotada Fukushige, and David Hildebrand. "Hydroperoxide Lyase and Leaf Aldehyde Formation can be Greatly Increased in Leaves." In Advanced Research on Plant Lipids. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0159-4_70.

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Srivastava, Satish K., Kota V. Ramana, Sanjay Srivastava, and Aruni Bhatnagar. "Aldose Reductase Detoxifies Lipid Aldehydes and Their Glutathione Conjugates." In ACS Symposium Series. American Chemical Society, 2003. http://dx.doi.org/10.1021/bk-2003-0865.ch003.

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Shahidi, Fereidoon. "Headspace Volatile Aldehydes as Indicators of Lipid Oxidation in Foods." In Advances in Experimental Medicine and Biology. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4615-1247-9_9.

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Sugiyama, Akihiko, and Jing Sun. "Immunochemical Detection of Lipid Hydroperoxide- and Aldehyde-Modified Proteins in Diseases." In Lipid Hydroperoxide-Derived Modification of Biomolecules. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7920-4_10.

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Canuto, Rosa A., Margherita Ferro, Giuliana Muzio, et al. "Effects of Aldehyde Products of Lipid Peroxidation on the Activity of Aldehyde Metabolizing Enzymes in Hepatomas." In Advances in Experimental Medicine and Biology. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-2904-0_3.

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Guéraud, Françoise. "Lipid Peroxidation Originating α,β-unsaturated Aldehydes and Their Metabolites as Biomarkers." In Biomarkers for Antioxidant Defense and Oxidative Damage: Principles and Practical Applications. Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9780813814438.ch8.

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Conference papers on the topic "Lipids Aldehydes"

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Hildago, Francisco J., and Rosario Zamora. "Lipid-derived Aldehyde Degradation Under Thermal Conditions and Their Scavenging by Phenolics During Food Frying." In Virtual 2021 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2021. http://dx.doi.org/10.21748/am21.324.

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