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Anti-glaucoma potential of Heliotropium indicum Linn in experimentally-induced glaucoma

Eye and Vision 2015年第1期2卷 162-169页

作者： Samuel Kyei George Asumeng Koffuor paul ramkissoon Osei Owusu-Afriyie Discipline of Optometry School of Health SciencesCollege of Health SciencesUniversity of KwaZulu-NatalDurbanSouth Africa Department of Optometry School of Physical SciencesUniversity of Cape-CoastCape-CoastGhana Department of Pharmacology Faculty of Pharmacy and Pharmaceutical SciencesKwame Nkrumah University of Science and TechnologyKumasiGhana Department of Pathology Komfo Anokye Teaching HospitalKumasiGhana

Background:Heliotropium indicum is used as a traditional remedy for hypertension in *** aim of the study was to evaluate the anti-glaucoma potential of an aqueous whole plant extract of *** to manage experimentally-induced ***:The percentage change in intraocular pressure(IOP),after inducing acute glaucoma(15 mLkg^(−1) of 5%dextrose,i.v.),in New Zealand White rabbits pretreated with Heliotropium indicum aqueous extract(HIE)(30–300 mgkg^(−1)),acetazolamide(5 mgkg^(−1)),and normal saline(10 mLkg^(−1))per os were *** were also monitored in chronic glaucoma in rabbits(induced by 1%prednisolone acetate drops,12 hourly for 21 days)after treatments with the same doses of HIE,acetazolamide,and normal saline for 2 *** anti-oxidant property of the extract was assessed by assaying for glutathione levels in the aqueous *** concentration in the vitreous humour was also determined using ELISA *** assessment of the ciliary bodies was ***:The extract significantly reduced intraocular pressure(p≤0.05–0.001)in acute and chronic glaucoma,preserved glutathione levels and glutamate concentration(p≤0.01–0.001).Histological assessment of the ciliary body showed a decrease in inflammatory infiltration in the extract and acetazolamide-treated group compared with the normal saline-treated ***:The aqueous whole plant extract of Heliotropium indicum has ocular hypotensive,anti-oxidant and possible neuro-protective effects,which therefore underscore its plausible utility as an anti-glaucoma drug with further investigation.

关键词： Glutathione assay Steroid-induced glaucoma Acetazolamide New Zealand white rabbit Anti-glaucoma drug Glutamate

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Anti-inflammatory effect of Heliotropium indicum Linn on lipopolysaccharide-induced uveitis in New Zealand white rabbits

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International Journal of Ophthalmology(English edition) 2016年第4期9卷 528-535页

作者： Samuel Kyei George Asumeng Koffuor paul ramkissoon Elvis Ofori Ameyaw Emmanuel Akomanin Asiamah Discipline of Optometry School of Health Sciences College of Health Sciences University of Kwa Zulu-Natal Department of Optometry School of Allied Health SciencesUniversity of Cape Coast PMB Department of Pharmacology Faculty of Pharmacy and Pharmaceutical Sciences College of Health SciencesKwame Nkrumah University of Science and TechnologyPMB Department of Biomedical and Forensic Sciences School of Allied Health Science University of Cape Coast PMB Department of Pathology Komfo Anokye Teaching Hospital

AIM： To investigate the anti-inflammatory effect of an aqueous whole plant extract of Heliotropium indicum（HIE） on endotoxin-induced uveitis in New Zealand white rabbits.·METHODS： Clinical signs of uveitis including flares,iris hyperemia and miosis, were sought for and scored in1.0 mg/kg lipopolysaccharide（LPS）-induced uveitic rabbits treated orally with HIE（30-300 mg/kg）,prednisolone（30 mg/kg）, or normal saline（10 m L/kg）. The number of polymorphonuclear neutrophils infiltrating, the protein concentration, as well as levels of tumor necrosis factor-α（TNF-α）, prostaglandin E2（PGE2）, and monocyte chemmoattrant protein-1（MCP-1） in the aqueous humor after the various treatments were also determined. A histopathological study of the anterior uveal was performed.· RESULTS： The extract and prednisolone-treatment significantly reduced（P ≤0.001） both the clinical scores of inflammation（1.0-1.8 compared to 4.40 ±0.40 in the normal saline-treated rabbits） and inflammatory cells infiltration. The level of protein, and the concentrationsof TNF-α, PGE2 and MCP-1 in the aqueous humor were also significantly reduced（P ≤0.001）. Histopathological studies showed normal uveal morphology in the HIE and prednisolone-treated rabbits while normal saline-treated rabbits showed marked infiltration of inflammatory cells.· CONCLUSION： The HIE exhibits anti-inflammatory effect on LPS-induced uveitis possibly by reducing the production of pro-inflammatory mediators.

关键词： monocytechemotaticprotein-1 prostaglandin E2 tumor necrosis factor-α polymorphonuclear neutrophil iris hyperemia prednisolone heliotropium uveitis

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