PMID- 31758056 OWN - NLM STAT- MEDLINE DCOM- 20201103 LR - 20210110 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Nov 22 TI - Fabrication of Second Generation Smarter PLGA Based Nanocrystal Carriers for Improvement of Drug Delivery and Therapeutic Efficacy of Gliclazide in Type-2 Diabetes Rat Model. PG - 17331 LID - 10.1038/s41598-019-53996-4 [doi] LID - 17331 AB - Drug delivery and therapeutic challenges of gliclazide, a BCS class II drug used in type 2 diabetes mellitus (T2DM) can be overcome by exploring smarter carriers of second-generation nanocrystals (SGNCs). A combined method of emulsion diffusion, high-pressure homogenization and solvent evaporation method were employed in the preparation of gliclazide loaded poly (D, L-lactide-co-glycolide) (PLGA) SGNCs. Taguchi experimental design was adopted in fabrication of Gliclazide SGNc using Gliclazide -PLGA ratio at 1:0.5, 1:0.75, 1:1 with stabilizer (Poloxamer-188, PEG 4000, HPMC E15 at 0.5, 0.75, 1% w/v). The formulated gliclazide of SGNCs were investigated for physicochemical properties, in vitro drug release, and in vivo performance studies using type-2 diabetes rat model. The formulation (SGNCF1) with Drug: PLGA 1: 0.5 ratio with 0.5% w/v Poloxamer-188 produced optimized gliclazide SGNCs. SGNCF1 showed spherical shape, small particle size (106.3 +/- 2.69 nm), good zeta potential (-18.2 +/- 1.30 mV), small PDI (0.222 +/- 0.104) and high entrapment efficiency (86.27 +/- 0.222%). The solubility, dissolution rate and bioavailability of gliclazide SGNCs were significantly improved compared to pure gliclazide. The findings emphasize gliclazide SGNCs produce faster release initially, followed by delayed release with improved bioavailability, facilitate efficient delivery of gliclazide in T2DM with better therapeutic effect. FAU - Panda, Bibhu Prasad AU - Panda BP AUID- ORCID: 0000-0002-7392-4883 AD - Department of Pharmaceutical Technology, School of Pharmacy, Taylor's University, Lakeside Campus, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia. bibhuprasad25@yahoo.co.in. FAU - Krishnamoorthy, Rachna AU - Krishnamoorthy R AD - Department of Pharmaceutical Technology, School of Pharmacy, Taylor's University, Lakeside Campus, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia. FAU - Bhattamisra, Subrat Kumar AU - Bhattamisra SK AD - Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, 57000, Malaysia. bhattamisra@yahoo.co.in. FAU - Shivashekaregowda, Naveen Kumar Hawala AU - Shivashekaregowda NKH AUID- ORCID: 0000-0001-7417-5004 AD - School of Pharmacy, Taylor's University, Lakeside Campus, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia. FAU - Seng, Low Bin AU - Seng LB AD - School of Medicine, Taylor's University, Lakeside Campus, No 1, Jalan Taylor's, 47500, Subang Jaya, Selangor, Malaysia. FAU - Patnaik, Sujata AU - Patnaik S AD - University College of Pharmaceutical Sciences, Kakatiya University, Warangal, Telangana, India. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191122 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Delayed-Action Preparations) RN - 0 (Hypoglycemic Agents) RN - 1SIA8062RS (Polylactic Acid-Polyglycolic Acid Copolymer) RN - 25X51I8RD4 (Niacinamide) RN - 5W494URQ81 (Streptozocin) RN - G4PX8C4HKV (Gliclazide) SB - IM MH - Animals MH - Biological Availability MH - Delayed-Action Preparations MH - Diabetes Mellitus, Experimental/*drug therapy MH - Diabetes Mellitus, Type 2/*drug therapy MH - Disease Models, Animal MH - Gliclazide/*administration & dosage/chemistry/pharmacokinetics MH - Hypoglycemic Agents/*administration & dosage/chemistry/pharmacokinetics MH - Male MH - Nanoparticles/chemistry MH - Niacinamide/adverse effects MH - Particle Size MH - Polylactic Acid-Polyglycolic Acid Copolymer/*chemistry MH - Rats MH - Streptozocin/adverse effects PMC - PMC6874704 COIS- The authors declare no competing interests. EDAT- 2019/11/24 06:00 MHDA- 2020/11/04 06:00 PMCR- 2019/11/22 CRDT- 2019/11/24 06:00 PHST- 2019/05/16 00:00 [received] PHST- 2019/11/05 00:00 [accepted] PHST- 2019/11/24 06:00 [entrez] PHST- 2019/11/24 06:00 [pubmed] PHST- 2020/11/04 06:00 [medline] PHST- 2019/11/22 00:00 [pmc-release] AID - 10.1038/s41598-019-53996-4 [pii] AID - 53996 [pii] AID - 10.1038/s41598-019-53996-4 [doi] PST - epublish SO - Sci Rep. 2019 Nov 22;9(1):17331. doi: 10.1038/s41598-019-53996-4.