Study of palmar patterns in diabetic patients.

Nowadays study of dermatoglyphics has a great importance in judicial and criminal researches. Similarly its study is related to some genetic diseases has an immense applications. Diabetes Mellitus is the silent killer of mankind and public health problem. Therefore investigators are looking for new methods for its early diagnosis and treatment. Dermatoglyphics is a growing discipline and its ease and ready applicability render it as a useful tool to the clinician. Dermatoglyphics may be effectively employed as a screening procedure in future and may help in the early detection of cases of diabetes mellitus. Methods: The present study is undertaken with an aim to evaluate the dermatoglyphic features in diabetic patients. The study consists of 150 diabetic patients and 150 normal healthy individuals as controls. They were 75 males and 75 females in each group. Dermatoglyphic prints were taken by “Ink method” described by Cummins and Midlo and further subjected to statistical analysis to find the variations in the dermatoglyphic features among diabetic patients and control groups. Results: Mean value of a-b ridge count is neither increased nor decreased in diabetic patients (P = 0.852). Mean value of atd angle is slightly decreased in diabetic patients (P = 0.2332). The frequency of t and t' are increased (P = 0.8462, P = 0.6681) and the frequency of t" is decreased (P = 0.757) in diabetic patients but they are not statistically significant. Conclusion: From the present study, it appears that there do exists a variation in the dermatoglyphic patterns in diabetic patients with an advantage of being simple and economical ‘ink’ method. As the specific features of dermatoglyphic patterns are present in diabetic patients, it can be used for mass screening program to segregate the predicted diabetic patients.

Characteristics of Fingerprints According to Type of Handedness / 체질인류학회지

Left handedness is known to be related with inheritance and is different from right handedness in brain development and various aspects of perceptive and cognitive performance. Fingerprints are also related with inheritance and do not change for the whole life. In addition, individuals have different fingerprints. The aim of the present study was to identify genetic correlation between fingerprints and handedness by examining how different fingerprints are between left handers and right handers. The study group to imprint fingerprints was composed of 55 left handers and 144 right handers of 1063 college students. The reliability of handedness assessment tool was Cronbach's alpha=0.948. The imprinted fingerprints were classified by fingerprint type (arch, radial loop, ulnar loop, whorl). Finger ridges and triradii in fingerprints were also counted. We performed frequency analysis, reliability analysis, cross-tabs analysis, chi-square test, independent t-test, paired t-test by SPSS win 15.0 for the data. The left handed males and females exhibited more arch types than the right handers and less whorl types than the right handers. The left handers in both hands exhibited more arch and ulnar loop types than the right handers and less whorl and radial loop types than the right handers. In the left hand, the 3rd (p<0.05), 4th (p<0.05), and 5th (p<0.01) fingerprints of the left handers were different from those of the right handers. The finger ridge counts of left handers were significantly less than those of the right handers in the 2nd and 3rd fingers of the left hand, and in the 3rd and 4th fingers in the right hand. The triradii counts of left handers were significantly less than those of right handers (p<0.05) in the 3rd, 4th, and 5th finger of the left and right hand. Total triradii counts of left handers were also significantly less than those of right handers (p<0.05). These results demonstrate that fingerprint type, finger ridge and triradius counts of the left handers are different from those of the right handers, and fingerprints may reflect genetic tendency for handedness.

Relations of Atd Angles and Anthropometric Values of Palms according to Sex Distinction / 체질인류학회지

The palm prints are unique in each individual and permanent for a lifetime. The atd angle of palm is formed by triradii of palm prints. The aim of this study is to identify the reasons why males have smaller atd angles, even with larger palms than females have. This study was done on 379 individuals (males : 174 individuals, females : 205 individuals). Data were collected by measuring atd angles using a protractor, distance from triradii a to d, length from triradii t to the distal palmar crease (DPC), palm breadth at metacarpals and palm length perpendicular using digital callipers. The data were analyzed through the frequency, independent sample t-test, paired t-test, Pearson correlation analysis using SPSS win 14.0. This study showed that atd angles of 39.2 degrees in males are significantly smaller than those of females (40.5 degrees). Males' were wider than females' in palm breadth, palm length and distance from triradii a to d, however, there was no sexual difference in the length from triradii t to the DPC. In addition, the ratio of palm breadth to palm length was higher in males than in females, however, the ratio of the length from triradii t to the DPC to palm length, and the ratio of the distance from triradii a to d to palm breadth of males were lower than those of females. Especially, atd angles in males and females were more correlative with the ratio of the length from triradii t to the DPC to palm length. The results of this study suggest that the differences in the atd angles between males and females arise from the ratio of length from triradii t to the DPC to palm length and the ratio of distance from triradii a to d to palm breadth. In both of the cases, males exhibited lower ratios than females. Especially, the ratio of the length from triradii t to DPC to palm length affected more to the atd angle than any other ratios.