eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2015-01-22 1 2 475 478 527 article Tahir M. Malla 1 Parul Srivastava 1 N. Ganesh 1 Department of Research, Jawaharlal Nehru Cancer Hospital and Research Centre, Bhopal - 462 001 (India). The fingerprint patterns, simian crease, and total ridge count of 21 mentally retarded, Down syndrome (DS) patients were compared with a control group of 21 normal individuals. Patients and controls were unrelated individuals. Quantitative dermatoglyphic parameters comprising of ‘atd’ angle measurement, finger print patterns as whorls, arch, loop, radial loop, ulnar loop and their respective total ridge counts of both hands were studied on both hands together. Significant differences were observed within DS patients as compared with the normal control group. Present studies indicate more intensity and incidence of patterns and TRC in the mentally retarded (Down syndrome) subjects compared to the controls and the values were found to be highly significant (P<0.0001). https://biomedpharmajournal.org/vol1no2/dermatoglyphic-variations-among-clinically-diagnosed-downs-syndrome-cases-a-cohort-study/ Down’s syndrome Dermatoglyphics ‘atd’ angle