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[Evaluation of the metacarpophalangeal profile (MPP) and of the dermatoglyphic pattern in Crouzon's syndrome].

The evaluation of metacarpophalangeal profiles (MPP) and dermathoglyphics patterns in two families affected by Crouzon's syndrome differing from genic expressivity, showed indicative findings for brachidactyly and "broad thumb and hallux" character. These abnormalities show Crouzon's disease not to be a true craniofacial dysostosis and number it among the wide sphere of syndromes presenting acrocephalic alterations.

Child↗
PubMed1983

Digital dermatoglyphics in some tribal populations of Andhra Pradesh, India.

An analysis of digital pattern types, ridge counts and pattern intensity index was made on samples from six tribal populations viz. Koya, Kolam, Rajgond, Chenchu, Pardhan and sugali. Bimanual, sexwise and inter-tribal comparisons were made for all the six tribes. Males in Koya, Kolam and Sugali and females in Sugali showed significant bimanual difference (chi 2 values 10.44, 10.09, 9.74 and 10.71 respectively). Sex difference was significant in Rajgond, Chenchu and Pardhan (chi 2 values 19.26, 33.46 and 24.64 respectively) for frequency of digital patterns. Inter-tribal comparisons showed Koya resembling with Kolam and Pardhan and Rajgond with Pardhan. For Total Finger Ridge Count, Kolam showed similarity with Rajgond, Pardhan and Sugali, Rajgond with Sugali and Chenchu also with Sugali. Pattern intensity index did not differ significantly among these populations.

Adolescent↗
PubMed1983

[Dermatoglyphics in 2 Guaymi Indian populations of Costa Rica].

Twenty-three palmar and digital dermatogliphic characters were examined in two Guaymi Amerindian populations, Abrojo and Limoncito, in southeastern Costa Rica. Dermatogliphs were analyzed in relation to sex, bilaterality or assymetry and differences in pattern frequencies between localities. The sample included 134 males and 127 females in two groups, according to their ethnic and linguistic origin: Western Guaymi (Movere), from Limoncito and Abrojo, and Eastern Guaymi (Murire or Buglere) from Limoncito. When compared with other Amerindian groups, the Guaymi presented a very low finger pattern average, as well a low total ridge count. The Movere subgroup, showed similarities among different patterns both in Limoncito and Abrojo. However there are significant differences between the Murire and Movere groups in relation to the ridge count (ab; bc), atd angle; frequency of designs at the interdigital zone 4; bilaterality; and sex. The results obtained confirm the existence of a marked evolutionary divergence between the two groups.

Costa Rica↗