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OBJECTIVE Colorectal cancer (CRC) development involves underlying modifications at genetic/epigenetic level. This study evaluated the role of Kras gene mutation and RASSF1A, FHIT and MGMT gene promoter hypermethylation together/independently in sporadic CRC in Indian population and correlation with clinicopathological variables of the disease. METHODS One(More)
PURPOSE To determine the ability of the RTVue spectral domain optical coherence tomography (SDOCT) to image the anterior chamber angle (ACA). METHODS Consecutive subjects, recruited from glaucoma clinics, prospectively underwent ophthalmic evaluation including gonioscopy by an ophthalmologist and anterior chamber imaging with SDOCT, adapted with a corneal(More)
PURPOSE To compare EyeCam (Clarity Medical Systems, Pleasanton, CA) imaging with gonioscopy for detecting angle closure. METHODS In this prospective, hospital-based study, subjects underwent gonioscopy by a single observer and EyeCam imaging by a different operator. EyeCam images were graded by two masked observers. The anterior chamber angle in a(More)
PURPOSE This study evaluated the use of combined bevacizumab with 5-fluorouracil (5-FU) on postoperative scarring and bleb survival after experimental glaucoma filtration surgery in comparison to the agents alone. METHODS Filtration surgery was performed on 26 female New Zealand White rabbits. The rabbits were allocated to one of four treatments: 5-FU(More)
This paper analyzes the global asymptotic stability of a class of neural networks with time delay in the leakage term and time-varying delays under impulsive perturbations. Here the time-varying delays are assumed to be piecewise. In this method, the interval of the variation is divided into two subintervals by its central point. By developing a new(More)
The performance of a recognition system is usually ex­ perimentally determined. Therefore, one cannot predict the peiformance of a recognition system a priori for a new dataset. In this paper, a statistical model to predict the value of k in the rank-k identification rate for a given bio­ metric system is presented. Thus, one needs to search only the(More)
OBJECTIVE To study the oxygen saturation profile in normal Asian Indian eyes. DESIGN A cross sectional prospective study. SUBJECTS Ninety eight consecutive patients presenting to our hospital with best corrected distance visual acuity (BCVA) of 20/20 and a normal ophthalmic examination were included in the study. Patients having any ocular or systemic(More)
PURPOSE To report the profile of microbial keratitis occurring after corneal collagen cross-linking (CXL) in keratoconus patients. METHODS A retrospective analysis of 2350 patients (1715 conventional CXL, 310 transepithelial CXL, and 325 accelerated CXL) over 7 years (from January 2007 to January 2014) of progressive keratoconus, who underwent CXL at a(More)
PURPOSE Cross-talk between Notch signaling and vascular endothelial growth factor (VEGF) is a major driver of angiogenesis. Here we investigated the temporal effect of bevacizumab (BEV) on Notch signaling and the functional features of cultured primary retinal pigment epithelial (PRPE) cells. METHODS Human (cadaver) PRPE cells were treated with clinical(More)
Purpose To determine the discriminant function of optical coherence tomography angiography (OCTA) by disease severity in glaucoma. Methods In this prospective, observational cross-sectional study, all subjects underwent visual fields, retinal nerve fiber layer (RNFL) measurements, and OCTA imaging. Local fractal analysis was applied to OCTA images (radial(More)