Related Experiment Video
Updated: Oct 26, 2025

Methods to Evaluate Cytotoxicity and Immunosuppression of Combustible Tobacco Product Preparations
Published on: January 10, 2015
Tobacco use and clinical leukoplakia lesions among south Indian tribes
Amina Shajahan1, Abel Chundankuzhiyil Mathew1, Vadavattath Padmanabhan Gangadharan2
1Department of Pharmacy Practice, Al-Shifa College of Pharmacy, Perinthalmanna, Kerala, India.
Objectives:
Leukoplakia is a white mucosal thickening and perhaps undermining change in the oral mucosa transcendently found in tobacco users. Since the tobacco utilization is extensively higher with the indigenous groups in the Asia Pacific locale, the current examination implicated the prevalence of tobacco consumption and leukoplakial lesions and the relationship between the two.
Methods:
This cross-sectional study was conducted through six tribal hamlets of Chithalayath Forest range at Wayanad district of Kerala, South India. Leukoplakia screening was led by a senior consultant on the basis of a visual investigation and pathological evaluation was not done. An organized questionnaire was utilized to gather data on demographic details and tobacco usage status and frequency. The prevalence of clinical oral lesions among tobacco users and non users was determined using statistical analysis.
Results:
Clinical oral leukoplakia was diagnosed in 27 (8.5%) subjects among the 317 individuals screened. The prevalence of lesions was considerably higher among tobacco consumers in comparison with non users (11 vs. 3.7%). Also, the tobacco chewers group had a higher percentage of leukoplakia. Another significant finding of this study is that the incidence of provisional leukoplakia was observed to be comparatively high among the most frequent tobacco consumers 15 (65.2%) in comparison with 8 (34.8%) in the frequent and nonfrequent users.
Conclusions:
Prevalence of abusive habits and clinical oral leukoplakial was substantial among the tribes. The cause and effect relationship and dose-response were also shown to have a significant association.
Related Concept Videos
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Endocarditis II: Clinical Features of Infective Endocarditis
Sputum Studies II: Culture and Sensitivity
Sputum culture and sensitivity is a medical procedure used to diagnose bacterial infections in the respiratory tract and select the most appropriate antibiotics for treatment. This process involves analyzing sputum samples of thick and opaque secretions produced in the lungs and airways. These samples are collected from patients and then sent to the laboratory for analysis.
The test can identify various pathogens responsible for respiratory infections, including Streptococcus,...

