Résumé
A study was conducted on 131 cases of oral cavity cancer (OCC), 145 cases of oral leucoplakia and 704 subjects without any oral lesions to investigate risk factors associated with the development of carcinoma of oral cavity in a hospital based cancer registry. Personal interviews, as well as physical examinations of the subjects enabled evaluation of a variety of potential risk factors. Potential risk factors like tobacco chewing, tobacco smoking, snuff dipping, alcohol consumption, bad oral and dental hygiene and age were given each certain numerical values. Each subject was first given a scoring and then analysed and correlated with the presenting lesions, when present. The study revealed that tobacco chewing and bad oral and dental hygiene contributed mainly to higher scoring. Among the subjects in high risk group (scoring more than 400) 63% had OCC, 21% had oral leucoplakia and 16% had no clinical oral lesions. Among the medium risk group (scoring between 100 and 400) 6% had OCC, 21% had leucoplakia and 73% had no oral lesions. In low risk group (scoring below 100) 8% had leucoplakia and 92% had no clinical oral lesions. Using the scoring system, it is suggested that the high risk group for OCC could be identified from general population and cancer detection tests could be specially directed towards this target group to detect maximum number of cases with minimum possible resources.
Sujets)
Adulte , Sujet âgé , Consommation d'alcool/effets indésirables , Femelle , Humains , Inde , Leucoplasie buccale/étiologie , Mâle , Adulte d'âge moyen , Tumeurs de la bouche/étiologie , Santé buccodentaire , Végétaux toxiques , Valeur prédictive des tests , Facteurs de risque , Fumer/effets indésirables , Tabac sans fumée/effets indésirablesRésumé
The mechanism of ascorbic acid as an immunostimulatory agent is still clearly unknown. It is speculated in the present study that the host resistance may be due in part to ascorbic acid potentiation of the host immune system through stimulation and activation large granular lymphocytes.
Sujets)
Animaux , Acide ascorbique/administration et posologie , Régime alimentaire , Immunisation , Activation des lymphocytes/effets des médicaments et des substances chimiques , Numération des lymphocytes , Lymphocytes/immunologie , Mâle , SourisRésumé
The paper compares the prevalence of oral carcinoma and dysplasia in smokeless tobacco users and non users. A total of 3205 subjects were studied. Of the smokeless tobacco users, 1.96 percent had oral carcinoma compared with 0.36 percent of non-users. The prevalence of oral dysplasia in the users' group was 14.4 percent as compared with 6.85 percent in the group of non-users.