Results 21 to 30 of about 964,371 (305)

Comprehensive measurement of purines in biological samples

Frontiers in Analytical Science
Defects in numerous aspects of purine metabolism are well-recognized causes for human diseases. The applicability of ultra performance liquid chromatography (UPLC) with photodiode array (PDA) detection for analysis of the most abundant biological ...
Rong Fu, Diane J. Sutcliffe, Ashok R. Dinasarapu, Ellen J. Hess, Ellen J. Hess, H. A. Jinnah, H. A. Jinnah   +6 more
doaj   +1 more source

Türkiye'de Yetişen Üç Ahlat Türünün Arbutin İçeriğinin Değerlendirilmesi

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
Armut (Pyrus spp.) Dünya çapında en önemli meyvelerden biridir. Pyrus cinsi, Rosaceae ailesinin Pomoideae alt ailesine aittir. Pyrus türlerinin farklı organları farklı oranlarda arbutin içerir.
Rukiye Kayhan, İbrahim Bulduk, Safiye Elif Korcan, Emrah Şelli, Mustafa Kargıoğlu   +4 more
doaj   +1 more source

CREATING A PROLONGED FORM OF ACETYLSALICYLIC ACID: AN EXPERIMENTAL APPROACH

Вестник трансплантологии и искусственных органов, 2016
Aim. The development of a prolonged form of acetylsalicylic acid (ASA) encapsulated into polymeric highly porous microcarriers using supercritical carbon dioxide and the subsequent study of ASA release kinetics in vitro and in vivo using high-performance
V. I. Sevastianov, V. K. Popov, V. Yu. Belov, S. V. Kursakov, E. N. Antonov, S. E. Bogorodsky   +5 more
doaj   +1 more source

Microbubbles enhanced synthetic phorbol ester degradation by ozonolysis [PDF]

, 2014
A phorbol-12-myristate-13-acetate (TPA) is a synthetic analogue of phorbol ester (PE), a natural toxic compound of Euphorbiaceae plant. The oil extracted from plants of this family is useful source for primarily biofuel.
Kuvshinov, Dmitriy, Siswanto, Anggun, Zimmerman, William   +2 more
core   +2 more sources

Analysis of imidazoles and triazoles in biological samples after MicroExtraction by packed sorbent [PDF]

, 2017
This paper reports the MEPS-HPLC-DAD method for the simultaneous determination of 12 azole drugs (bifonazole, butoconazole, clotrimazole, econazole, itraconazole, ketoconazole, miconazole, posaconazole, ravuconazole, terconazole, tioconazole and ...
Bellagamba, Giuseppe, Campestre, Cristina, Carradori, Simone, Celia, Christian, De Luca, Elisa, Di Marzio, Luisa, Guglielmi, Paolo, Locatelli, Marcello, Menta, Sergio, Zengin, Gokhan   +9 more
core   +3 more sources

Control of anthocyanin biosynthesis pathway gene expression by eutypine, a toxin from Eutypa lata, in grape cell tissue cultures [PDF]

, 2003
Eutypine, 4-hydroxy-3-(3-methyl-3-butene-1-ynyl) benzaldehyde, is a toxin produced by Eutypa lata, the causal agent of Eutypa dieback in grapevine. The effect of the toxin on anthocyanin synthesis has been investigated in Vitis vinifera cv.
Afifi, Maha, Chervin, Christian, El-Kereamy, Ashraf, Legrand, Valérie, Monje, Marie-Carmen, Nepveu, Françoise, Roustan, Jean-Paul   +6 more
core   +4 more sources

Validation of Analytical Method for Vitamin A in Bioadhesive Ocular Cationic Nanoemulsion Loaded into Thermosensitive Gel Using RP-HPLC

Indonesian Journal of Chemistry
Various test methods have been previously documented for determining vitamin A levels in different dosage forms. This study specifically examines an isocratic reverse phase-high performance liquid chromatography (RP-HPLC) method designed for the direct ...
Siti Fatmawati Fatimah, Endang Lukitaningsih, Ronny Martien, Akhmad Kharis Nugroho   +3 more
doaj   +1 more source

Alkaloids from the Sponge Stylissa carteri Present Prospective Scaffolds for the Inhibition of Human Immunodeficiency Virus 1 (HIV-1). [PDF]

, 2016
The sponge Stylissa carteri is known to produce a number of secondary metabolites displaying anti-fouling, anti-inflammatory, and anti-cancer activity. However, the anti-viral potential of metabolites produced by S.
Bader, Theresa Maria, Brack-Werner, Ruth, Gerwick, William H, Helfer, Markus, Kremb, Stephan, O'Rourke, Aubrie, Schmitt-Kopplin, Philippe, Voolstra, Christian R   +7 more
core   +2 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Development of a Comprehensive HPLC Method for Determination of Product-related Impurities and Assay of Active Ingredients in Papaverine Hydrochloride Products

Регуляторные исследования и экспертиза лекарственных средств, 2021
. Papaverine hydrochloride products are used as anticonvulsants in routine medical practice. Most of the approved product specification files include thin-layer chromatography for assessment of product-related impurities and UV spectrophotometry for ...
N. P. Antonova, E. P. Shefer, N. E. Semenova, S. S. Prokhvatilova, A. M. Kalinin, S. A. Kuchugurin, V. N. Makukhin   +6 more
doaj   +1 more source