Palmar Traits Research Articles

Comparative Analysis of Dermatoglyphic Traits in Albanian and Roma Populations in Kosovo

We examined dermatoglyphics of children in three Albanian and one Roma population sample (collected from 641 individuals from the Albanian populations and 226 individuals from the Roma population of both sexes). We compared Albanian and Roma populations based on four finger (whorl, radial and ulnar loop, and arch) and thirteen palmar traits (pattern frequencies in the Thenar/I interdigital area, II, III, and IV interdigital area, Hypothenar and axial »t« triradius position). The differences between the populations were more evident for palmar traits. In our study the Albanian and the Roma populations showed the best separation when finger and palmar traits are separately analyzed. As expected, the Albanian and the Roma populations separated in statistical analyses of most traits; the main reason for this is the different origins of two ethnic groups. The observed difference also indicates a low level of admixture between the Albanians and the Roma despite them living beside one another for several centuries.

Finger and palmar dermatoglyphics in Muzeina Bedouins from South Sinai: qualitative traits

Quantitative finger and palmar dermatoglyphics of 218 individuals (170 males and 48 females) belonging to the Muzeina Bedouins from South Sinai Peninsula. They are characterized with a high degree of consanguinity, a small isolate nomadic tribe. 22 quantitative dermatoglyphic traits (12 finger and 10 palms) were considered in the present study. Except PII (non-significant sex difference), the results of significant sex differences of finger ridge counts (TFRC), MLI are similar with the earlier studies in various populations. However, the results of palmar traits reveal homogeneity which also presents a common picture obtained in the earlier studies, perhaps due to the possible role of environmental (prenatal) factors in the realization of dermatoglyphics between finger and palm. The development of palmar dermatoglyphics has a relatively longer growth period compared with fingers (Cummins 1929). Thus, the palmar dermatoglyphic pattern of affinities corresponds better than fingers to the ethno-historic background of the populations (Reddy et al. 1988, Karmakar et al. 1989, 2002, 2008, 2010).

Finger and palmar dermatoglyphics in Muzeina Bedouin from South Sinai: A quantitative study

Quantitative finger and palmar dermatoglyphics of 218 individuals (170 males and 48 females) belonging to the Muzeina Bedouins from South Sinai Peninsula. They are characterized with a high degree of consanguinity, a small isolate nomadic tribe. 22 quantitative dermatoglyphic traits (12 finger and 10 palms) were considered in the present study. Except PII (non-significant sex difference), the results of significant sex differences of finger ridge counts (TFRC), MLI are similar with the earlier studies in various populations. However, the results of palmar traits reveal homogeneity which also presents a common picture obtained in the earlier studies, perhaps due to the possible role of environmental (prenatal) factors in the realization of dermatoglyphics between finger and palm. The development of palmar dermatoglyphics has a relatively longer growth period compared with fingers (Cummins 1929). Thus, the palmar dermatoglyphic pattern of affinities corresponds better than fingers to the ethno-historic background of the populations (Reddy et al. 1988, Karmakar et al. 1989, 2002, 2008, 2010).

Quantitative digital and palmar dermatoglyphics: Sexual dimorphism in the Chuvashian population of Russia

With the aim of determining sex dimorphism among the Chuvashian population of Russia, digital and palmar dermatoglyphics of 547 individuals (293 males, 254 females) were analyzed. The sex differences for PII, TRC, and AFRC are similar to Indian and Jewish populations. Correlation coefficients between individual finger ridge counts are a little lower than in Jews but are almost equal to Indian populations. The Mantel test of matrix correlation between sexes for 22 traits shows a very good similarity. However, sex differences of palmar traits display different levels when compared with other human populations. In light of this, our evidence indicates the possible role of environmental (prenatal) factors in the realization of dermatoglyphic sex differences. The development of palmar dermatoglyphics has had a relatively longer growth period compared with fingers [Cummins, H., 1929. The topographic history of the volar pads (walking pads, tast ballen) in the human embryo. Embryol. 20, 103–126]. The palmar dermatoglyphic pattern of affinities therefore corresponds better than fingers to the ethno historical background of the populations, ascertained by numerous studies.

Quantitative and qualitative palmar dermatoglyphics in the Mediterranean population of Delta de l'Ebre (Spain)

The aim of this study is to offer a descriptive analysis of dermatoglyphic traits of the palm in a Spanish population on the North Mediterranean coast. We collected and studied palmar dermatoglyphics of 341 individuals (141 males and 200 females) from Delta de l'Ebre, Catalonia. Sexual and imanual differences were analyzed for several palmar traits, including, a-b ridge-count, D line modal types and pattern frequencien in the hypothenar, Thenar/I, II, III and IV palmar areas.

Dermatoglyphic variation and weight and length at birth.

Relationships between dermatoglyphic variables, including finger ridge counts and finger, palmar, and plantar pattern intensities, and weight and length at birth, were tested in a sample of 184 boys and 202 girls from Warsaw schools. No convincing evidence for such relationships has been obtained from the results of correlations and one-way analysis of variance, although there are indications that some palmar traits may be related to length at birth in females. The data agree with the common belief that birth weight and birth length are mainly determined by influences operating in later stages of pregnancy, that is, after the 20th gestational week.

Palmar dermatoglyphics in a sample of Italian population

The purpose of this paper is to provide a descriptive analysis of dermatoglyphic traits of the palm in a North-Italian population. For this purpose we collected and studied the dermatoglyphic prints of 420 subjects (211 males and 209 females) from Bologna. Sexual and bimanual differences were pointed out for several palmar traits, especially with reference to the occurrence of palmar patterns. The trend of palmar traits of our sample was compared to the one of other Italian samples available from literature. The occurrence of modal types of main lines of Italian samples is always within the range of the general variability of Caucasians. The results of our study, in addition to the well-known biological importance of dermatoglyphics as indicative traits of a population, suggest a need for further analysis of palmar dermatoglyphics in Italy by compatible methodologies.

Dermatoglyphic sexual dimorphism in Middle Eastern Jews

Summary. — The dermatoglyphics of Jews of Middle Eastern extraction display, in general, the same features as do the majority of Caucasoid populations. In males there are more whorls and fewer ulnar loops than in females, and in correlation with this, a higher pattern intensity index, and higher total and absolute ridge counts. On the palms, where the image is more varied in diverse populations, the males of our sample, show more patterns in the left and right thenar areas and in the hypothenar area, especially on its left side. Some other palmar traits, as the line A exits and the a-b distance, present also significant differences between the sexes. Using only dermatoglyphic traits with high discriminant power (F > 4), discriminant analysis permits a correct classification by sex of 63,3 % of individuals, which is slightly better than in the North African but less than in East European or Yemenite Jewish groups. This indicates different levels of sexual dimorphism in populations otherwise possessing similar dermatoglyphic characteristics, and suggests the possible role of environmental prenatal factors in attainment of the dermatoglyphic sexual dimorphism level.

Palmar dermatoglyphics of the Faroe Islanders.

The palmar dermatoglyphics of 298 male and 331 female Faroe Islanders were studied by the topological method of Penrose and Loesch. The frequency of individual pattern elements, triradii, main-line index and a-b ridge counts were recorded and compared with similar results for Danes and Cornish obtained from the analysis of unpublished data. The palmar traits of the three populations conform closely to the patterns of sex and bimanual variation reported in previous topological studies of Europeans. The Faroese have some distinctive dermatoglyphic features but the frequencies of their palm patterns are not as divergent from other North-West Europeans as their finger dermatoglyphic characters.

Dermatoglyphics in dermatitis herpetiformis.

In a dermatoglyphic study of 101 patients with dermatitis herpetiformis, comparison was made with their normal relatives and several random normal series. The results of the several comparisons are quite consistent, considering the nature of the data, for the all point to an attenuation of qualitative and quantitative digital and palmar traits in the patients. It is argued that these differences are associated with the disease itself, and that some of the female relatives have an inherited tendency to the disorder, but do not express it. The findings suggest the involvement of genetic factors in the aetiology, and possibly intrauterine environmental influences as well.