Heavy metal blood levels and hearing loss in children of West Bengal, India.

Introduction: Heavy metals are a major environmental threat in India and there are several health risks associated with it. The aim of this study was to investigate the relationship between the blood levels of lead, cadmium, arsenic, and mercury and a sensoneurial hearing loss in children aged one to ten years.

Method: Heavy metal blood levels were determined using inductively coupled plasma mass spectrometry, with appropriate quality control.

Cytogenetic and micronuclei study of human papillomavirus-related oral squamous cell carcinoma.

Background: The association of human papilloma viral infection in oral squamous cell carcinoma is well studied in the Western countries, but its correlation with DNA damage in the form of micronuclei (MN) formation, ceased apoptosis or presence of chromosomal abnormalities has not yet been studied.

Aim: The aim of this study is to find any possible correlation between human papillomavirus (HPV) infection and cytogenetic damage in the oral malignant and premalignant population of West Bengal.

Settings And Design: A total of 104 malignant and 103 premalignant cases were selected along with 200 controls.

Study of arsenic exposure in oral/oropharyngeal carcinoma in West Bengal.

Objectives: To study any possible correlation between arsenic toxicity and the development of oral carcinoma in West Bengal population.

Material And Methods: Ethical clearance for this study was obtained from the Vivekananda Institute of Medical Sciences. Out of 30 785 patients attending our hospital from November 2012 to July 2015, 107 cases and 50 control individuals were selected.

Cytogenetic monitoring in human oral cancers and other oral pathology: the micronucleus test in exfoliated buccal cells.

Oral cancer is a lifestyle-related cancer, with tobacco as a primary factor. Progression of oral cancer develops over several years from the stage of leukoplakia, erythroplakia, etc. A micronucleus test was applied to oral mucosal cells, considering them as the target site for carcinogens and cytogenetic damage.

Black tea (Camellia sinensis) as a chemopreventive agent in oral precancerous lesions.

Oral carcinoma is the most common malignancy found in adult Indian men and the third most common in adult Indian women. About half of all cases are found to be associated with precancerous lesions, chiefly leukoplakia. We wanted to explore the possible benefits of black tea (Camellia sinensis) administered to patients with oral leukoplakia.