Quantification of Anandamide and 2-Arachidonylglycerol in Plasma Samples: A Short, Non-toxic HPLC Method and Sample Storage

2010-01-01
Ozdurak, Rabia Hurrem
Şeker, Tamay
Korkusuz, Petek
Korkusuz, Feza
Objective: The endocannabinoid system plays an important modulatory role in brain physiology, pain sensation, appetite regulation, cardiovascular system, female reproductive system and the immune system. The endogenous ligands of cannabinoid receptors, anandamide (ANA) and 2-Arachidonylglycerol (2-AG) have been identified in various mammalian tissues. However, it difficult to quantify them accurately in blood and in tissues since these endogenous cannabinoids are found in small amount and they are metabolized very quickly. In order to quantify ANA and 2-AG from blood accurately, it was aimed (a) to determine pre-analytical conditions in blood sampling procedure, (b) to improve extraction process and quantification of ANA and 2-AG in plasma samples by HPLC, and (c) to determine storage conditions and period of these metabolites.
TURKISH JOURNAL OF BIOCHEMISTRY-TURK BIYOKIMYA DERGISI

Suggestions

Synthesis of dopamine functionalized silver nanoparticles together with possible interactions between silver and dopamine having different oxidation forms
Kanbertay, Elif; Volkan, Mürvet; Department of Chemistry (2013)
Dopamine is a neurotransmitter found in central nerve system which has a vital role for human health. Dopamine oxidation in body is an important issue since it may form reactive metabolites which can be toxic to the cell. Surface-enhanced Raman scattering (SERS) is currently recognized as one of the most sensitive spectroscopic tools, which can be exploited for ultrasensitive chemical and biological detection, addition to providing structural information on the systems of interest. SERS of dopamine displays...
Characterization and analysis of the antioxidant capacity of functional phenolics oxidized by Scytalidium thermophilum catalase phenol oxidase (CATPO)
Söyler, Ulviye Betül; Ögel, Zümrüt Begüm; Şensoy, İlkay; Department of Food Engineering (2012)
Scytalidium thermophilum is a termophilic fungus that effectively produces the extracellular enzyme catalase phenol oxidase (CATPO). The enzyme is distinct among catalases with its bifunctionality of oxidising phenolic compounds in the absence of H2O2. CATPO is capable of oxidizing catechol, chlorogenic acid, caffeic acid and catechin which are ortho –diphenolic compounds. Diphenolic compounds are known as strong antioxidants. Catalase is one of the important antioxidant enzymes. Therefore, in this thesis t...
Cloning and initial protein characterization of an estrogen responsive gene: YPEL2
Güpür, Gizem; Muyan, Mesut; Department of Biology (2014)
17β-estradiol (E2), the main circulating estrogen in the body, is involved in physiological regulation of many tissue and organ functions, including mammary tissue. E2 is also involved in target tissue malignancies. E2 regulates cellular proliferation, differentiation and death in target tissues. The lasting effects of E2 on cells are mediated by estrogen receptor and β that are the products of distinct genes and act as transcription factors. Upon binding to E2, the activated ER regulates the expression of ...
Assessment of 17beta-estradiol-estrogen receptor alpha complex-mediated changes in genome-wide methylation and gene expression profiles
User, Sırma Damla; Muyan, Mesut; Department of Biology (2016)
17β-estradiol (E2), the most potent estrogen hormone, induces cellular responses primarily through Estrogen Receptor-alpha (ERα), which is a transcription factor. Interfering E2 signaling indicates that E2 is mitogenic for cells, exemplified by MCF7 cells derived from breast adenocarcinoma, synthesizing ERα endogenously. Studies used exogenous expression of ERα in ERα-negative cell lines to examine structural/functional properties of the receptor. What was unexpected from these studies is the observation th...
Effect of quercetin on mRNA and protein expressions of vitamin D metabolizing CYP27B1 and CYP24A1 in human embryonic kidney cell line (HEK-293)
Durukan, Özlem; Akkulak, Merve; Özhan, Güneş; Evin, Emre; Adalı, Orhan (Wiley, 2018-07-01)
Vitamin D is essential compound for life having role not only in the regulation of calcium metabolism but also in the regulation of cell proliferation, immune responses, cardiovascular homeostasis and nervous system. These wide range of actions occur with the enzymatic conversion of vitamin D to 1a,25-dihydroxyvitamin D by cytochrome P450 enzymes (CYPs). While CYP27B1 provides the synthesis of hormonally active form of Vitamin D, 1,25(OH)2D, CYP24A1 involves in catabolism of vitamin D. Quercetin, as one of ...
Citation Formats
R. H. Ozdurak, T. Şeker, P. Korkusuz, and F. Korkusuz, “Quantification of Anandamide and 2-Arachidonylglycerol in Plasma Samples: A Short, Non-toxic HPLC Method and Sample Storage,” TURKISH JOURNAL OF BIOCHEMISTRY-TURK BIYOKIMYA DERGISI, pp. 279–284, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55697.