Philip A. Thomas

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Fungi may infect the cornea, orbit and other ocular structures. Species of Fusarium, Aspergillus, Candida, dematiaceous fungi, and Scedosporium predominate. Diagnosis is aided by recognition of typical clinical features and by direct microscopic detection of fungi in scrapes, biopsy specimens, and other samples. Culture confirms the diagnosis.(More)
PURPOSE To determine putative alterations in the major lenticular proteins in Wistar rats of different ages and to compare these alterations with those occurring in rats with selenite-induced cataract. METHODS Lenticular transparency was determined by morphological examination using slit-lamp biomicroscopy. Alterations in lenticular protein were(More)
This study was undertaken to investigate the putative antioxidant activity of the oyster mushroom, Pleurotus ostreatus, on lipid peroxidation and antioxidant status of major organs of aged (24 month old) rats when compared to young (4 month old) rats. Elevated levels of malondialdehyde (MDA) and significantly lowered levels of reduced glutathione (GSH) and(More)
Hypercholesterolemia is one of the major risk factors that precipitate coronary heart disease and atherosclerosis. Oxidative stress is believed to contribute to the pathogenesis of hypercholesterolemic atherosclerosis; hence, various antioxidant compounds are being evaluated for potential anti-atherogenic effects. In the present study, the putative(More)
Hypercholesterolemia and oxidative stress are known to accelerate coronary artery disease and progression of atherosclerotic lesions. In the present study, an attempt was made to evaluate the putative antihypercholesterolemic and antioxidative effects of an ethanolic extract of the oyster mushroom (Pleurotus ostreatus) and chrysin, one of its major(More)
PURPOSE To document the clinical profile of patients with keratitis due to Aspergillus flavus and to elaborate on differences in the aflatoxin-producing potential of keratitis strains versus environmental strains of A. flavus. METHODS Over a 6-month period, strains of Aspergillus flavus were isolated in culture from corneal scrape or biopsy material of(More)
AIM To report the aetiological spectrum and susceptibility patterns of bacteria isolated from patients with corneal ulceration. METHOD The microbiological data of all patients with suspected infectious corneal ulceration who presented to the ocular microbiology service at this centre between 2005 and 2012 were reviewed retrospectively. RESULT(More)
Calpains belong to the family of calcium-dependent, structurally related intracellular cysteine proteases that exhibit significant functions in evolution of different types of cataracts in human as well as animal models. Application of calpain inhibitors generated through a virtual screening workflow may provide new avenues for the prevention of(More)
PURPOSE To determine the putative role of acetyl-L-carnitine (ALCAR) in maintaining normal intercellular communication in the lens through connexin. METHODS In the present study, Wistar rat pups were divided into 3 groups of eight each. On postpartum day ten, Group I rat pups received an intraperitoneal injection (50 µl) of 0.89% saline. Rats in Groups II(More)
Hypercholesterolemia is a dominant risk factor for atherosclerosis and cardiovascular diseases. In the present study, the putative antihypercholesterolemic and antioxidative properties of an ethanolic extract of Piper betle and of its active constituent, eugenol, were evaluated in experimental hypercholesterolemia induced by a single intraperitoneal(More)