Effect of khat chewing on 14 selected periodontal bacteria in sub- and supragingival plaque of a young male population

Oral Microbiology and Immunology

Volumn 20, Issue 3, 2005, Pages 141-146

  Al Hebshi, Nezar Noor ^a,b   Skaug, N ^a  

^a UNIVERSITY OF BERGEN   (Norway)

^b Laboratory of Oral Microbiology   (Norway)

Author keywords

Catha edulis; Gingival plaque; Khat; Microbiology; Periodontal bacteria

Indexed keywords

CATHA EDULIS EXTRACT;

ACTINOMYCES ISRAELII; ADULT; ARTICLE; CLINICAL ARTICLE; CONTROLLED STUDY; DNA DNA HYBRIDIZATION; EIKENELLA CORRODENS; FUSOBACTERIUM NUCLEATUM; GINGIVA; HUMAN; MALE; MASTICATION; MOUTH FLORA; STREPTOCOCCUS INTERMEDIUS; TANNERELLA FORSYTHENSIS; VEILLONELLA PARVULA;

ADULT; CATHA; DENTAL PLAQUE; DNA, BACTERIAL; EPIDEMIOLOGIC METHODS; HUMANS; MALE; MASTICATION; PERIODONTAL DISEASES;

EID: 17644426375     PISSN: 09020055     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1399-302X.2004.00195.x     Document Type: Article

References (33)

1. Al-Motarreb A, Baker K, Broadley KJ. Khat: pharmacological and medical aspects and its social use in Yemen. Phytother Res 2002: 16: 403-413.
2. Awange DO, Onyango JF. Oral verrucous carcinoma: report of two cases and review of literature. East Afr Med J 1993: 70: 316-318.
3. Consensus report. Periodontal diseases: pathogenesis and microbial factors. Ann Periodontol 1996: 1: 926-932.
4. Feinberg AP, Vogelstein B. A technique for radiolabeling DNA restriction endonuclease fragments to high specific activity. Anal Biochem 1983: 132: 6-13.
5. Haffajee AD, Cugini MA, Tanner A, Pollack RP, Smith C, Kent RL, et al. Subgingival microbiota in healthy, well-maintained elder and periodontitis subjects. J Clin Periodontol 1998: 25: 346-353.
6. Haffajee AD, Socransky SS. Relationship of cigarette smoking to the subgingival microbiota. J Clin Periodontol 2001: 28: 377-388.
7. Hammond BF, Mallonee D. A selective/differential medium for Wolinella recta (Abstract). J Dent Res 1988: 67 (Spec iss): 327.
8. Hill CM, Gibson A. The oral and dental effects of q'at chewing. Oral Surg Oral Med Oral Pathol 1987: 63: 433-436.
9. Jorgensen E, Kaimenyi JT. The status of periodontal health and oral hygiene of Miraa (catha edulis) chewers. East Afr Med J 1990: 67: 585-590.
10. Kalix P. Catha edulis, a plant that has amphetamine effects. Pharm World Sci 1996: 18: 69-73.
11. Kalix P, Braenden O. Pharmacological aspects of the chewing of khat leaves. Pharmacol Rev 1985: 37: 149-164.
12. Kassie F, Darroudi F, Kundi M, Schulte-Hermann R, Knasmuller S. Khat (Catha edulis) consumption causes genotoxic effects in humans. Int J Cancer 2001: 92: 329-332.
13. Kennedy JG. The flower of paradise: the institutionalized use of the drug qat in North Yemen. Dordrecht: D. Reidel Publications, 1987: 98-100.
14. Ling LJ, Hung SL, Tseng SC, Chen YT, Chi LY, Wu KM, et al. Association between betel quid chewing, periodontal status and periodontal pathogens. Oral Microbiol Immunol 2001: 16: 364-369.
15. Loe H, Silness J. Periodontal disease in pregnancy. I. Prevalence and severity. Acta Odontol Scand 1963: 21: 533-551.
16. Luqman W, Danowski TS. The use of khat (Catha edulis) in Yemen. Social and medical observations. Ann Intern Med 1976: 85: 246-249.
17. Macigo FG, Mwaniki DL, Guthua SW. The association between oral leukoplakia and use of tobacco, alcohol and khat based on relative risks assessment in Kenya. Eur J Oral Sci 1995: 103: 268-273.
18. Mengel R, Eigenbrodt M, Schunemann T, Flores-de-Jacoby L. Periodontal status of a subject sample of Yemen. J Clin Periodontol 1996: 23: 437-443.
19. Nasr AH, Khatri ML. Head and neck squamous cell carcinoma in Hajjah, Yemen. Saudi Med J 2000: 21: 565-568.
20. Shiloah J, Patters MR, Waring MB. The prevalence of pathogenic periodontal microflora in healthy young adult smokers. J Periodontol 2000: 71: 562-567.
21. Silness J, Loe H. Periodontal disease in pregnancy. II. Correlation between oral hygiene and periodontal condition. Acta Odontol Scand 1964: 22: 121-135.
22. Smith GL, Socransky SS, Smith CM. Rapid method for the purification of DNA from subgingival microorganisms. Oral Microbiol Immunol 1989: 4: 47-51.
23. Socransky SS, Haffajee AD, Cugini MA, Smith C, Kent RL. Microbial complexes in subgingival plaque. J Clin Periodontol 1998: 25: 134-144.
24. Socransky SS, Smith C, Martin L, Paster BJ, Dewhirst FE, Levin AE. 'Checkerboard'DNA-DNA hybridization. Biotechniques 1994: 17: 788-792.
25. Soufi HE, Kameswaran M, Malatani T. Khat and oral cancer. J Laryngol Otol 1991: 105: 643-645.
26. Tanner A, Maiden MF, Macuch PJ, Murray LL, Kent RL. Microbiota of health, gingivitis, and initial periodontitis. J Clin Periodontol 1998: 25: 85-98.
27. Anonymous. Tobacco and oral diseases. Report of EU Working Group 1999. J Ir Dent Assoc 2000: 46 (12-19): 22.
28. United Nations. Studies on the chemical composition of khat: Investigations on the phenylalkylamine fraction. United Nations document MNAR/11/, 1975.
29. van Winkelhoff AJ, Bosch-Tijhof CJ, Winkel EG, van der Reijden WA. Smoking affects the subgingival microflora in periodontitis. J Periodontol 2001: 72: 666-671.
30. Wall-Manning GM, Sissons CH, Anderson SA, Lee M. Checkerboard DNA-DNA hybridisation technology focused on the analysis of Gram-positive cariogenic bacteria. J Microbiol Methods 2002: 51: 301-311.
31. Ximenez-Fyvie LA, Haffajee AD, Socransky SS. Comparison of the microbiota of supra- and subgingival plaque in health and periodontitis. J Clin Periodontol 2000: 27: 648-657.
32. Ximenez-Fyvie LA, Haffajee AD, Socransky SS. Microbial composition of supra- and subgingival plaque in subjects with adult periodontitis. J Clin Periodontol 2000: 27: 722-732.
33. Zambon JJ, Grossi SG, Machtei EE, Ho AW, Dunford R, Genco RJ. Cigarette smoking increases the risk for subgingival infection with periodontal pathogens. J Periodontol 1996: 67: 1050-1054.