PMID- 28372836 OWN - NLM STAT- MEDLINE DCOM- 20170509 LR - 20240109 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1497 DP - 2017 May 12 TI - Macroalga Padina pavonica water extracts obtained by pressurized liquid extraction and microwave-assisted extraction inhibit hyaluronidase activity as shown by capillary electrophoresis. PG - 19-27 LID - S0021-9673(17)30412-0 [pii] LID - 10.1016/j.chroma.2017.03.033 [doi] AB - Hyaluronidase degrades hyaluronic acid, the principal component of the extracellular matrix. Inhibition of this enzyme is thus expected to hinder skin aging. Brown alga Padina pavonica activity toward hyaluronidase was evaluated using capillary electrophoresis (CE)-based enzymatic assays. This green technique allows evaluation of the biological activity of the natural material in an economic manner. Pressurized liquid extraction (PLE), microwave assisted extraction (MAE), supercritical fluid extraction and electroporation extraction techniques were used. Extraction conditions were optimized to obtain cosmetically acceptable Padina pavonica extracts with the best inhibition activity. CE-based assays were conducted using only a few nanoliters of reactants, a capillary of 60cm total length and of 50mum internal diameter, +20kV voltage for separation in 50mM ammonium acetate buffer (pH 9.0) and 200nm wavelength for detection. The reaction mixture was incubated for 1h and CE analysis time was about 11min. A novel online CE-assay using transverse diffusion of laminar flow profiles for in-capillary reactant mixing allowed efficient monitoring of hyaluronidase kinetics with K(m) and V(max) equal to 0.46+/-0.04mgmL(-1) and 137.1+/-0.3nMs(-1) (r(2)=0.99; n=3), respectively. These values compared well with literature, which validates the assay. Water extracts obtained by PLE (60 degrees C; 2 cycles) and MAE (60 degrees C; 1000W; 2min) presented the highest anti-hyaluronidase activity. The half maximal effective concentration (IC(50)) of water PLE extract was 0.04+/-0.01mgmL(-1) (r(2)=0.99; n=3). This value is comparable to the one obtained for Einsenia bicyclis phlorotannin fractions (IC(50)=0.03mgmL(-1)), which makes Padina pavonica bioactivity very promising. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Fayad, Syntia AU - Fayad S AD - Institut de Chimie Organique et Analytique (ICOA), Universite d'Orleans - CNRS FR 2708 - UMR 7311, Orleans, France. FAU - Nehme, Reine AU - Nehme R AD - Institut de Chimie Organique et Analytique (ICOA), Universite d'Orleans - CNRS FR 2708 - UMR 7311, Orleans, France. Electronic address: reine.nehme@univ-orleans.fr. FAU - Tannoury, Mona AU - Tannoury M AD - Faculty of Science II, Department of Biology, Lebanese University, 90656 Jdeidet El Metn, Fanar, Lebanon. FAU - Lesellier, Eric AU - Lesellier E AD - Institut de Chimie Organique et Analytique (ICOA), Universite d'Orleans - CNRS FR 2708 - UMR 7311, Orleans, France. FAU - Pichon, Chantal AU - Pichon C AD - Centre de Biophysique moleculaire, CNRS UPR4301 and Universite d'Orleans, France. FAU - Morin, Philippe AU - Morin P AD - Institut de Chimie Organique et Analytique (ICOA), Universite d'Orleans - CNRS FR 2708 - UMR 7311, Orleans, France. LA - eng PT - Journal Article DEP - 20170320 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 059QF0KO0R (Water) RN - EC 3.2.1.35 (Hyaluronoglucosaminidase) SB - IM MH - Chromatography, Supercritical Fluid MH - Diffusion MH - Electrophoresis, Capillary/*methods/standards MH - Electroporation MH - Hyaluronoglucosaminidase/*antagonists & inhibitors MH - Inhibitory Concentration 50 MH - Kinetics MH - Liquid-Liquid Extraction/*methods MH - *Microwaves MH - Phaeophyceae/*chemistry MH - *Pressure MH - Reproducibility of Results MH - Seaweed/*chemistry MH - Water/*chemistry OTO - NOTNLM OT - Algae OT - Capillary electrophoresis OT - Electroporation OT - Enzyme kinetics OT - Hyaluronidase EDAT- 2017/04/05 06:00 MHDA- 2017/05/10 06:00 CRDT- 2017/04/05 06:00 PHST- 2016/11/30 00:00 [received] PHST- 2017/03/16 00:00 [revised] PHST- 2017/03/17 00:00 [accepted] PHST- 2017/04/05 06:00 [pubmed] PHST- 2017/05/10 06:00 [medline] PHST- 2017/04/05 06:00 [entrez] AID - S0021-9673(17)30412-0 [pii] AID - 10.1016/j.chroma.2017.03.033 [doi] PST - ppublish SO - J Chromatogr A. 2017 May 12;1497:19-27. doi: 10.1016/j.chroma.2017.03.033. Epub 2017 Mar 20.