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At least 433 records · Page 24Linked to original sources
PubMed2005

Genetic analysis of bilateral dermatoglyphic asymmetry in twins and their parents.

The data for this study were collected on 64 twin pairs (30 MZ and 34 DZ) and their 128 parents. Two following hypotheses were evaluated: 1. Bilateral asymmetry is significantly genetically controlled; 2. The twinning phenomenon would affect the magnitude of bilateral asymmetry. The results revealed no statistically significant differences between mean values of MZ and DZ twins and their parents for the majority of the traits. Significant differences were recorded for only 6 of 96 comparisons (6%). Analysis of variance revealed separated sources of MZ, DZ and singleton variance. F-ratios, contrasting variances between different groups were significant for 26 of 96 comparisons (27%) showing heterogeneity of variance between zygosities and between twins and their parents. In addition, environmental covariance appeared to be larger for MZ than DZ with respect to directional asymmetry (DA) for all 16 traits and fluctuating asymmetry (FA) for 14 traits. These observations showed complex environmental determinism for bilateral asymmetry for the majority of dermatoglyphic traits. Significant genetic variance ratios (GVRs) were observed for four variables (25%) with respect to DA and three variables (18.75%) with respect to FA. All these significant GVRs were rendered insignificant because of evidence of greater environmental covariance for MZ twins, except possibly for DA for URC4.

Adolescent↗
PubMed2005

Dermatoglyphs and larynx cancer.

Cancer of the larynx is the seventh most common malignant disease among middle-aged men in Croatia. Morbidity ratio between men and women is 17:1. Etiology of disease is directly connected with the tobacco use while genetic influences have not yet been studied enough. Digito-palmar dermatoglyphs analysis has already been used in studying the genetic etiology of certain malignant diseases (lung, breast, cervical, colorectal, melanoma and gastric cancer). We have analyzed correlation of quantitative and qualitative traits between two groups (group of 40 men with larynx cancer versus control group of 100 phenotypically healthy men). Quantitative statistical analysis (descriptive statistics, multivariate and univariate analysis) has not shown statistically significant difference except for the latent structure using factor analysis. Qualitative analysis has shown statistically significant difference among two investigated groups thus suggesting the faster changes of the qualitative features under the influence of the ecological factors.

Adult↗
PubMed1992

[Dermatoglyphic diagnosis in patients with atopic eczema].

The purpose of this investigation was to find out whether the new Dermalog system could be used in conjunction with dermatoglyphics in patients with atopic dermatitis. For this purpose, 92 patients with atopic eczema (58 women and 34 men) were examined and were compared with two different control groups. The first control group, representing the normal population, consisted of 100 female and 100 male randomly selected subjects. The second control group (55 women and 24 men) excluded any persons with a history of atopic syndrome. First of all, hand and fingerprints were taken. The data were stored in a computer and were statistically analysed with the aid of significance and discrimination tests. Evaluation of the patients' data showed no significant difference from the first control group. Results in the second, selected, control group were better. For example, in this group, in which the probability was 93.1%, 76.4% of the women examined were found to have atopic dermatitis. The probability among the male patients examined was 99.9% and the corresponding sensitivity, 77.0%.

Adolescent↗
PubMed2005

Dermatoglyphic studies in eastern and south-eastern Europe.

In nine population samples from Bulgaria, Croatia, Greece, Hungary, Republic of Macedonia (Skopje and Aromuns from Stip region), Romania, Serbia and Slovakia 12 dermatoglyphic variables have been studied. There are distinct differences between the populations and between males and females. The Macedonian Aromuns are clearly separated from the other populations.

Dermatoglyphics↗
PubMed1975

[Dermatoglyphics in children with embryonic tumors (author's transl)].

Dermatoglyphics were analyzed in 60 children with embryonic tumors. In comparison with normal children, several differences were found. Thus, the embryonal origin of the different tumors is underlined and the hypothesis of embryonic tumors as malformations is sustained. These tumors seem to be the clinically most important manifestation of a much more comprehensive malformation syndrome, which is not yet known in all its details.

Adolescent↗
PubMed1991

[Dermatoglyphic characteristics of the Czech population].

Statistical processing of results obtained from dermatoglyphic digital patterns of the Czech population--110 women and 130 men of a reference group--revealed the tendency of more complex pattern formation in men and a tendency of simple pattern formation in women. As regards the frequency of vortices, the differences are significant at the 1% level (in men they form 24.15% patterns, while in women 14.27%). There is also a significant difference in the ratio of arches (1% level of significance)--frequency in men, 5.85%, is lower than in women--11.69%. In the general evaluation the ulnar loops differ only at the 5% level of significance (in men 58.85% and in women 63.18%). The frequency of radial loops and double loops differ insignificantly. The results indicate a greater trend of asymmetrical patterns in men than in women. In investigations of the sexual dimorphism the attained numbers of statistical differences differ by fingers--the most widely different values are recorded in the index fingers and the least different ones in the middle fingers. The number of statistical differences by sex differs also by patterns: most in vortices and arches and least in double loops.

Czechoslovakia↗
PubMed1991

Issues of sampling and of methodologies in dermatoglyphics.

In summary, we are left with the conclusion that some innovative work has been done in the past two decades but that the bulk of the world literature in dermatoglyphics still reflects an almost total reliance on Cummins and Midlo, who, we must remember, were summing up the work of scholars prior to the time their book first appeared in 1943. We need to clearly understand biocultural implications of breeding populations from which we wish to draw a sample, and we must ask ourselves before we start new studies exactly what we wish to achieve. If the current methodologies have not been able to provide us with satisfactory answers, the time has surely come for scholars to devise new ways of critically looking at the enormous complexity of dermal ridges. The encouraging news is that our knowledge of human embryology is growing, molecular genetics is soaring forward, and our understanding of the complexities of patterns on the human skin may be greatly improved from what we learn about the embryology of dermal and epidermal tissue.

Dermatoglyphics↗
PubMed1991

Dermatoglyphics in juvenile hypertension.

Dermatoglyphics of 172 children and young adults (116 males, 56 females) with hypertension, 13-27 years old, were compared with those of 130 healthy male and 110 female controls. Several differences were observed between the two groups. Hypertensive patients had a somewhat lower frequency of fingertip ulnar loops, higher frequency whorls and a higher total finger ridge count. They also had a somewhat higher mean atd angle, significantly more frequent distal position of the axial triradius (mostly in t' position) and more missing axial triradii compared to controls. The differences between a-b ridge counts, the interdigital, thenar and hypothenar patterns were generally small and sometimes limited to one sex or one hand only. The observed differences seem to indicate a genetic influence in the etiology of essential hypertension.

Adolescent↗
PubMedDate not supplied

[An assessment of the homeostasis of development in man by dermatoglyphic indices].

Dermatoglyphic traits were examined in 176 inhabitants (39 families) of a village in Arkhangelsk Province. The level of bilateral symmetry and the similarity of the traits were determined in parents, in parents-children pairs, and between children. It is suggested that differences in the level of bilateral symmetry between children and the extent of similarity between children and parents may be used as a criterion of stability or developmental homeostasis in man.

Adult↗
PubMedDate not supplied

[Congenital forms of brachydactyly and dermatoglyphics].

Relative length and ridge count in dermatoglyphs of patients with various forms of brachydactyly were compared to those of the corresponding controls. In most cases of brachydactyly, fingers shortening was associated with the decreased ridge count, and only in two patients with brachydactyly D this relationship wasn't detected. It appears that brachydactyly may be due either to the abnormal positional information or disturbed function of certain growth factors responsible for the expression of inborn growth potential.

Dermatoglyphics↗
PubMed1991

Remarks on some rare traits of finger and palmar dermatoglyphics.

Rare dermatoglyphical patterns of fingers and palms of 26 different Hungarian population groups (males; 3207 individuals, 6414 hands) are compared with that observed in some population groups from the USSR (Buriats, Chookhchees, Kazakhs, Mansi and Komi), Khalkha-Mongolians, and Ethiopians (altogether 838 male individuals, 1676 hands). These patterns are: Radial loops on IV. and V. fingers, absence of triradius "d" on the palms, Ar,Lu and W + S on the hypothenar, Lc/Lr (Bettmann figure) and W + S on the thenar/I, and W on II., III. and IV. interdigital pads. It is pointed out that in addition to population studies these rare traits may also be used in genetic investigations (twin studies) as well as in forensic anthropology (disputed paternity).

Dermatoglyphics↗
PubMed1990

Quantitative and qualitative finger dermatoglyphics in the Basque Valley of Urola, Spain.

Digital dermatoglyphics of an indigenous sample of 87 males and 101 females from the Urola Valley in the Spanish Basque Country are compared with those from the nine other Basque valleys previously analyzed. In both sexes of the Urola Valley, there is a very high frequency of radial loops; the mean found in this valley extends the range of variation for South European-Mediterranean populations, and it is in the superior limit of all Caucasian populations. There are bimanual and sex differences in the frequencies of whorls and loops. Contrary to what occurs normally in populations, in the Urola Valley the frequency of whorls is higher in females and the quantitative value of digital patterns is lower in males. The results of this study show the existence of heterogeneity among valleys for digital trait frequencies and for finger ridge count, and this heterogeneity is more marked in females.

Cross-Cultural Comparison↗
PubMed1989

[Dermatoglyphic analysis of patients with hypertrophic cardiomyopathy].

Complete dermatoglyphic analysis of the hands in 69 men and 31 women with hypertrophic cardiomyopathy revealed only two significant abnormalities. In both sexes the total frequency of double loops on the fingers was increased (table 1) and the main palmar line had a more longitudinal course on the palm with its termination more frequently in area 3, less frequently in area 5 than in both compared controls (table 2). The differences are, however, not marked enough to use them in practice to screen affected individuals in families at risk. No differences were revealed in relation to the severity of the disease and the genealogical situation in the pedigree.

Cardiomyopathy, Hypertrophic↗
PubMed1989

[Dermatoglyphics parameters and cluster analysis of seven minority nationalities].

This paper reports the normal values of dermatoglyphics parameters of seven minority nationalities in Yunnan Province which are Bai, Blang, Yi, Hui, Lisu, Nu and Jinuo. The test of difference signification and cluster analysis show different parameters in several nationalities and the greatest most remarkable difference between Jinou and other nationalities. Han is very different from several nationalities. In each nationality, the symmetry pattern of same name finger or area is highly unanimous, the symmetry between left and right does not show random combination.

China↗
PubMed1977

Dermatoglyphic analysis of primary and secondary cleft palate patients.

No significant differences are found among the different groups. Some of the observed minor differences between the cleft and the control groups may be the result of sampling error. Our findings are not surprising because our cleft patients have no other congenital anomalies. Indeed aberrant dermatoglyphic patterns are found mainly in generalized dysmorphogenesis, such as in chromosomal syndromes, rather than in isolated congenital malformations, exception being made of course for congenital malformations of the hand itself.

Cleft Lip↗
PubMedDate not supplied

Palmar, dermatoglyphics in essential hypertension.

Significant dermatoglyphic findings observed in both sexes of hypertensive cases as compared to controls were: (i) Increased Total finger Ridge count. (ii) Decreased frequency of Axial triradius t (in right palm female) and Axial Triradius t' and t" in right palm (male) (iii) Decreased atd angle. (iv) Absence of Axial triradi in both the palms of an individual was found exclusively in hypertensive cases (10%) and in none of the controls.

Dermatoglyphics↗
PubMed1989

[Influence of the X-chromosome on finger dermatoglyphic features in the Ukrainian population of Podolye].

Results of twins' and families' investigations of 19 quantitative features of fingertip dermatoglyphic patterns are presented. A conclusion has been drawn that the determinants of most of them have X-linked loci. The data were analysed in the light of the Lyon's hypothesis used in modern methods of interpretation of family correlations. The results revealed some incorrectness of the postulate of the highest connection in sister--sister pairs in the case of X-linked loci. It was ascertained that the distribution of family correlations, according to skin relief quantitative features, depends upon ethnic peculiarities of a sample: the higher the frequency of whorls in the population, the greater the probability of receiving the picture expected to occur in case of X-linked loci.

Adolescent↗
PubMed1988

[Dermatoglyphic patterns in cryptorchism].

Digital and palmar dermatoglyphic patterns of 155 children with cryptorchidy has been studied. Results were compared to two control groups of Spanish normal population. 50 and 300 males respectively, showing the following statistically significant differences: 1. High incidence of whorls (37.4% vs. 22.2% and 29.5%) and low frequency of ulnar loops (51.5 vs. 66.4 0 and 60.8%) on fingers. 2. Frequent recurrence of some digital patterns, with a higher frequency of accumulated whorls and lower frequency of accumulated ulnar loops. 3. Increased amplitude of atd angle. 4. No differences in finger ridge count or ab ridge count.

Child↗