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PubMed1988

Dermatoglyphic configurations of proximal and middle phalanges in Spaniards: analysis of subtypes.

In this paper the dermatoglyphic configurations of proximal and middle phalanges in Spaniards (112 males, 135 females) have been analyzed. The particularities of 12 types were studied in a previous paper (Pons 1985). The present one completes the study with the analysis of 29 subtypes. For each hand and sex the frequencies of subtypes on different digits are analyzed as well as the directional characteristics (radial/ulnar and distal/proximal). On proximal phalanges the digits I and II display a clear radial slant. On the contrary digits IV and V show an ulnar direction. On digit III is a bimanual asymmetry in both sexes, the right hand being slanted in a radial direction, the left hand in an ulnar. The majority of configurations are distal. There are no significant sexual differences. On middle phalanges, as usually, the variability of subtypes is greater than on proximal ones. Digit II slopes in the radial course. Digits III and IV show the bimanual asymmetry already described for the proximal phalange of digit III. Digit V displays a clear ulnar slant. In distal/proximal direction of subtypes there is a greater variability than on the proximal phalanges. No important sexual differences are observed.

Adult↗
PubMed1988

Hereditary characteristics of enzyme deficiency and dermatoglyphics in congenital color blindness.

The hereditary characteristics of enzyme deficiency and dermatoglyphics in congenital color blindness (CCB) were studied. We propose that there is a linkage between the two loci on the X-chromosome determining CCB and glucose-6-phosphate dehydrogenase (G6PD), based on our study of a high incidence of G6PD deficiency in 156 male cases with CCB. The CCB gene is closely linked with that of G6PD deficiency from our pedigree investigations. The rise in the frequency of eight or more whorls, the low value of atd angle and the presenting rate of real palmar patterns of the thenar, hypothenar and I, areas presented the hereditary traits of congenital color blindness.

Color Vision Defects↗
PubMed1985

Dermatoglyphic analysis of patients with ankylosing spondylitis.

Dermatoglyphic features on fingers and palms were assayed in 50 male patients with ankylosing spondylitis (AS) and in 36 families (184 family members, 1st degree male relatives). In patients significantly higher occurrence of whorls and arches on finger tips was found. Loops were significantly less frequent when compared to standard population patterns. Decreasing number of palmar patterns was found in AS patients. Distal position of triradius, as well as more frequent occurrence of t', t" make the difference between AS patients and Polish population. Main lines D, C, B, A in AS patients tend to end in areas of lower numbers (9,7,5,4). That makes a significant difference with results obtained from population studies (p less than 0.01). The main line D in the area 9 occurs more frequently in AS patients expressing HLA-B27 antigen than in patients not showing it (p less than 0.01).

Dermatoglyphics↗
PubMed1985

Dermatoglyphic configurations of proximal and middle phalanges in Spaniards.

In this paper the dermatoglyphic configurations of proximal and middle phalanges in Spaniards have been analysed. From the data of 112 males and 135 females it is seen that on proximal phalanges the highest frequencies correspond to basic types and enclosures. On the contrary, the middle phalanges are displaying an enlarged frequency distribution. On both phalanges no significant sexual and bimanual differences were found. The hitherto reported population data do not permit to claim clear differences among the main racial groups.

Dermatoglyphics↗
PubMed1979

Maternal effects on fingertip dermatoglyphics.

Significantly larger variation between sibships within families of male MZ twins than between sibships within families of female MZ twins, indicative of maternal influences, was found for 10 of 41 dermatoglyphic fingertip variables. Of these, five were thumb-related with the effect primarily on the thumb radial and ridge count (larger of radial and ulnar count). These same variables were previously found to have unequal variances in MZ twins of known placental type, and the results indicate maternal influences in singletons as well as twins for these variables. Although the total ridge count (TRC), previously shown to differ in MZ twins of known placental type (paralleling the thumb radial and ridge counts) did not reach significance, the trend indicated that the observed thumb changes may be reflected in the TRC as well. Little finger pattern type and ulnar counts also showed less variability in families of female MZ twins, but the interpretation is complicated by the concomitant differences in mean squares within-sibships for these little finger variables.

Dermatoglyphics↗
PubMed1979

Ethnic diversity in Punjab as based on finger dermatoglyphics.

Four ethnic groups of Punjab having same dialect viz. Khatris, Jats, Brahmins and Muslims were taken to see ethnic differences in regards to the distribution of whorls, loops, and arches of finger dermatoglyphics. The results show that there is a great diversity in the four groups for these parameters. These groups were compared with similar ethnic groups of other places having different dialect. The results reveal that there seems to be ethnic affinity between the group known by same name and which is true for all the four groups.

Anthropology, Physical↗
PubMedDate not supplied

Palmar flexion creases and dermatoglyphics in leprosy patients.

Palmar configurations of 115 male and 48 female leprosy patients were compared with 536 males and 426 female normal individuals of the same population. The data was derived from Nekararu (weavers) castes of Karnataka State, India. Among flexion creases, the single radial base crease (SRBC) especially showed more association with leprosy in both male and female patients than their respective controls. Among dermatoglyphics, only C-line types are significantly different in male leprosy patients as compared to their controls. The female patients also showed more C-absent lines than the control group. The susceptibility to bacterial infection may be due to some biologic deficiency which warrants continued investigation on a broader and more intensive basis.

Dermatoglyphics↗
PubMed1978

A study of relationship between pulmonary tuberculosis and palmar dermatoglyphic traits.

Bilateral inked palmar impressions of 150 male tubercular patients and those of 150 normal controls (males) have been studied comparatively. Patients and controls show deviation from each other with respect to 1. biological concordance-disconcordance in line C and hypothenar patterns, 2. bilateral and left-homolateral (not right) differences in Plato's modal types of line C and 3. occurrence of hypothenar (R + L only) and III interdigital patterns (L-homolateral only). It is significant that tubercular patients do not show any difference with the normal controls in a reliable measure like main-line-index and by and large in occurrence of patterns also (with two exceptions only). Natural selection does not seem to be operative on palmar dermatoglyphic traits.

Anthropometry↗
PubMed1984

[Phenogenetics of human dermatoglyphics (a factorial model)].

The factor analysis was made of the intrapair differences of the quantitative characteristics of the finger dermatoglyphics in mono- and dizygotic twins. The mechanisms determining "laterality" and "locality" of separate factors are discussed. The developmental model is proposed that suggests existence of several embryonic fields and subsequent incorporation of the genes to control the formation of finger prints.

Dermatoglyphics↗
PubMed1984

[Heredity and the bimanual asymmetry of human finger and palm dermatoglyphs].

An attempt has been made to study the effect of hereditary factors on the asymmetry of morpho-functional quantitative traits, in particular, finger and palm dermatoglyphs (24 indices). The results of examination of 140 twin pairs (83 monozygotic and 57 dizygotic) are presented. The hereditary effects have been found for ten traits when an account is taken of the asymmetry direction, and for nine traits when asymmetry direction is not considered.

Adult↗
PubMed1984

Estimation of interclass correlations for dermatoglyphics family data.

The aim of this study was to derive estimates of covariance of sibships of mixed sex and to find a reasonably efficient method of estimating interclass correlations, when there are unequal numbers of sibs in families drawn from the same population. The applicability of the method to quantitative studies is illustrated by the use of dermatoglyphics data. The new method has proved effective in practice and serves the purpose for which it was intended.

Dermatoglyphics↗
PubMedDate not supplied

Dermatoglyphics in leprosy (I. Finger patterns).

Finger dermatoglyphic patterns were studied in leprosy families selecting patients and controls from each family. A total of 100 leprosy cases (50 of TT/BT types and 50 of BL/LL types) and 100 control subjects were investigated. While a statistically significant association was noted with some finger patterns (loop ulnar, loop radial, loop twin and loop central pocket) in the lepromatous type, no such association was observed with the finger patterns in the tuberculoid type.

Adult↗
PubMed1983

[Absence of the palmar c triradius. Dermatoglyphic and geneologic study of a genetic character transmitted since the 17th century in a Quebec family].

A dermatoglyphic research on the absence of the palmar c-triradius was carried out in a Canadian family line originating from a French married couple who settled in the Quebec City area in 1649. Of the 51 individuals examined, 34 showed that c-triradius was missing on one or both palms. The study of the family tree and of the data confirms the hypothesis that an absent palmar c-triradius is an autosomal dominant trait transmitted by an heterozygous genotype with, in the present observation, an incidence of 66,6% and an estimated penetrance of 44,1%.

Chromosome Aberrations↗
PubMed1978

Dermatoglyphic features in diabetes mellitus.

Dermatoglyphic features of 290 children and 180 adults with diabetes mellitus were investigated. WD occurred significantly more frequently on the fingers, and pattern intensity was low in certain interdigital areas in these patients. A high TRC value was more frequent in both girls and boys with diabetes mellitus than in the controls.

Adolescent↗
PubMedDate not supplied

Cytogenetic and dermatoglyphic studies of newborns with single umbilical artery.

Cytogenetic studies were carried out on 24 newborns with single umbilical artery (SUA), whereas dermatoglyphic analysis were performed on 14 of them. Metaphase examination showed increased size of the short arm of an acrocentric chromosome of group D or of group G in 6 of the 24 SUA babies studied. Numerous chromosome breaks were detected in one other case. Dermatologlyphic data showed that the total finger ridge count did not deviate from normal patterns, whereas the aTd angle showed increased values in 5 of the 14 cases studied. The absence of major chromosome aberrations does not exclude the possibility of chromosomal etiology for SUA, since the increased frequency of acrocentric polymorphism found in the present series and the 5 cases of increased aTd angle suggest such an occurrence.

Abnormalities, Multiple↗
PubMed1984

Triphalangeal thumb and dermatoglyphics.

The dermatoglyphics of nine Japanese (three males and six females) with triphalangeal thumb were studied. The dermal pattern on the triphalangeal thumb showed the high increased frequency of radial loop pattern (69.2%).

Dermatoglyphics↗