title: Adenosine deaminase in saliva as a diagnostic marker of squamous cell carcinoma of tongue.
abstract: Tongue cancer is amongst the most common and fatal types of cancers in the world. The abnormalities in purine metabolism are characteristic features of many human tumors. Little is known about the correlation between the activities of key enzymes of purine nucleotide pathway and clinical indicators of tongue cancer invasiveness and aggressiveness. Fifty patients (M: F 25:25; mean age: 55.6 years (range 45-60; SD 1.8)) with diagnosed squamous cell carcinoma of the tongue (test group) and 30 normal subjects (M: F 15:15) without any systemic disease (control group) were recruited after obtaining informed consent. All patients were staged by the TNM classification. Salivary adenosine deaminase (ADA) activity was assessed in cancerous patients (test group) and normal healthy subjects (control group). Statistically significant differences between test and control groups were observed in salivary ADA (P < 0.001). Furthermore, serum ADA levels significantly increased as the disease stage progressed from stage I to stage III of squamous cell carcinoma of the tongue in both genders (P < 0.001). Salivary ADA might be used as a diagnostic tool for early detection of squamous cell carcinoma of tongue.
authors.affiliation: Oral Imaging Center, School of Dentistry, Oral Pathology and Maxillofacial Surgery, Catholic University Leuven, Kapucijnenvoer 7, 3000 Leuven, Belgium. drbalwantraissct@rediffmail.com
authors.forename: Balwant
authors.initials: B
authors.lastname: Rai
authors.forename: Jasdeep
authors.initials: J
authors.lastname: Kaur
authors.forename: Reinhilde
authors.initials: R
authors.lastname: Jacobs
authors.forename: Suresh Chander
authors.initials: SC
authors.lastname: Anand
mesh_terms: D000243:Adenosine Deaminase / Q000032:analysis / Q000378:metabolism*; D000704:Analysis of Variance; D014408:Biomarkers, Tumor; D002294:Carcinoma, Squamous Cell / Q000201:enzymology* / Q000473:pathology; D016022:Case-Control Studies; D055088:Early Detection of Cancer / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D012463:Saliva / Q000737:chemistry*; D012737:Sex Factors; D014062:Tongue Neoplasms / Q000201:enzymology* / Q000473:pathology
chemical_list: D014408:Biomarkers, Tumor; D000243:Adenosine Deaminase