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Biomedical subjects

N Kalra

Publications and source records attributed to N Kalra.

25 records · Page 2Linked to original sources
PubMed1992

Evaluation of coliforms as indicators of water quality in India.

The total and thermotolerant coliform counts in rural drinking water derived from ground water, piped supplies and surface water are reported for a number of areas in India. To evaluate these counts as indicators of recent faecal contamination the total coliforms and thermotolerant coliforms isolated have been identified. Thermotolerant Escherichia coli formed 11.7% of the total coliforms and 75.1% of the thermotolerant coliforms. Citrobacter sp. (20.4%) and Klebsiella sp. (50.9%) were the other common total coliforms isolated and, among the thermotolerant coliforms, Klebsiella sp. (16.4%) was the only other organism frequently encountered. The total coliform counts were significantly correlated with water temperature. The applicability in tropical areas of standards developed for temperate climates is discussed.

Colony Count, Microbial↗
PubMed1988

Seasonal distribution of Aeromonas hydrophila in river water and isolation from river fish.

The seasonal distribution of Aeromonas hydrophila in water and recovery rate from live river fish was investigated. The highest isolation rates of A. hydrophila occurred in water during the late winter followed by a progressive decline in density during the summer and monsoon seasons. The organism was recovered from fish throughout the period from which it was concluded that they form a reservoir which is unrelated to their density in water. The enterotoxigenicity of some environmental strains was tested in suckling mice and rabbit ileal loop.

Aeromonas↗
PubMedDate not supplied

CT features of acute phlegmonous gastritis.

One case of phlegmonous gastritis is presented. Radiological diagnosis of this condition is difficult. In the setting of a clinical suspicion of this condition, computed tomography (CT) is the imaging modality of choice.

Bacterial Infections↗
PubMedDate not supplied

Imaging features of esophageal leiomyomatosis: a case report.

Leiomyomas are the most common benign tumors of the esophagus. However, esophageal leiomyomatosis is a rare pathologic entity that has received little attention in the radiologic literature. We present a case of esophageal leiomyomatosis with imaging features on barium swallow and computed tomography (CT).

Adult↗
PubMedDate not supplied

Coexistent neurocysticercosis and Japanese B encephalitis: MR imaging correlation.

BACKGROUND AND PURPOSE: An increased incidence of intestinal helminthic infections has been observed in patients with viral encephalitis in endemic areas. Both Japanese B encephalitis (JE) and neurocysticercosis (NCC) share some common socio-demographic and ecologic factors, and pigs act as the intermediate carrier for both. Our purpose was to show the coexistence of JE and NCC in brain on MR images and highlight the possible role of NCC as an amplifier of JE. METHODS: MR images from 10 cases of coexistent JE and NCC were studied retrospectively. T1-weighted axial and sagittal, proton T2-weighted axial and coronal, and T2-weighted fluid-attenuated inversion recovery axial and coronal sections of the brain were evaluated. NCC was diagnosed on the basis of neuroimaging. Diagnostic serologic testing for JE was conducted using paired blood and CSF samples. RESULTS: The JE changes were bilateral and asymmetrical and were more severe on the side harboring the solitary cyst or the side bearing the greater number of cysts or lodging the degenerating cyst. In each of nine of 10 cases, at least one degenerating cyst was found on the side of predominant JE pathologic abnormality. CONCLUSION: The study suggests that the co-occurrence of JE and NCC is not just a chance coincidence. NCC apparently predisposes a person to JE infection and is a positive modulator of the encephalitic process. The study shows a spectrum of MR imaging findings of coexistent JE and NCC.

Adolescent↗