Renagappa Ramakrishnan

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AIMS To identify the etiology, incidence and prevalence of ocular bacterial infections, and to assess the in vitro susceptibility of these ocular bacterial isolates to commonly used antibiotics. MATERIALS AND METHODS Retrospective analysis of consecutive samples submitted for microbiological evaluation from patients who were clinically diagnosed with(More)
We previously have reported that acute or chronic diabetes in animals resulted in altered neurotransmitter levels. In this study, we investigated the concentrations of 5-hydroxytryptamine (5-HT) and 5-hydroxyindoleacetic acid (5-HIAA) in discrete areas of brain viz. striatum (ST), hippocampus (HC), hypothalamus (HT), midbrain (MB), pons medulla (PM),(More)
PURPOSE To measure the peripapillary retinal nerve fiber layer (RNFL) thickness in normal Indian pediatric population. SUBJECTS AND METHODS 120 normal Indian children ages 5-17 years presenting to the Pediatric Clinic were included in this observational cross-sectional study. RNFL thickness was measured with stratus optical coherence tomography (OCT).(More)
Thirty days after induction of experimental diabetes the brain catecholamines namely, norepinephrine (NE) and epinephrine (E) were studied in discrete brain regions (striatum, hippocampus, hypothalamus, midbrain, pons and medulla, cerebellum and cerebral cortex) in control, alloxan-diabetic untreated and insulin-treated diabetic rats. E showed significant(More)
Hyperglycemia and acidosis are the hallmark of diabetes. Since these factors play an important role in the diabetic complications, we have studied the brain catecholamine levels in hyperglycemic and acidotic conditions per se. Experimentally induced hyperglycemia and acidosis are accompanied by significant alterations in the catecholamine levels in discrete(More)
On 10 March 2010, an outbreak of diarrhoeal disease was reported among workers of a jute mill in Kolkata, West Bengal, India. The cluster was investigated to identify the agent(s) and the source of infection and make recommendations. A suspected case of cholera was defined as having >3 loose watery stools in a 24-hour period and searched for case-patients(More)
Glaucoma is a serious sight-threatening disorder aptly named the Silent thief of sight. India, being the second most populous country in the world, has about 20% of the world glaucoma population. The complex geographical and socioeconomic architecture and the economic extremes have a profound effect on its health system. The present times are abundant with(More)
In rural West Bengal, outbreaks of cholera are often centred around ponds that is a feature of the environment. Five investigations of laboratory-confirmed, pond-centred outbreaks of cholera were reviewed. Case-control odds ratios were approximated with relative risks (RRs) as the incidence was low. The environment was investigated to understand how the(More)