Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “DERMATOGLYPHICS”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 343 records · Page 19Linked to original sources
PubMed1987

The clinical significance of multiple hair whorls and their association with unusual dermatoglyphics and dysmorphic features in mentally retarded Israeli children.

The prevalence of multiple hair whorls in a group of mentally retarded patients was 8% as opposed to 3.6% in a group of healthy children. A statistically significant relationship was demonstrated between mental retardation, multiple hair whorls, more than two dysmorphic features, and unusual dermatoglyphics. The results confirm the importance of multiple hair whorls as a genuine dysmorphic feature. The significance of these markers in the evaluation of mentally retarded subjects is discussed, with special reference to the timing of the fetal insult.

Abnormalities, Multiple↗
PubMedDate not supplied

Dermatoglyphic profile in congenital cataracts.

Forty-five children with congenital cataract cases were studied for patterns and compared with age sex matched controls. The patients showed marked differences in different dermatoglyphic traits. The intra uterine aetiological groups i.e. rubella, hereditary and undetected aetiology, showed variations in mainline terminations. Rubella group showed increased angle atd.

Cataract↗
PubMed1986

Dermatoglyphic (fingerprint) evidence for a congenital syndrome of early onset constipation and abdominal pain.

Chronic idiopathic constipation and abdominal pain are the most common gastrointestinal symptoms but their cause is rarely determined; therefore, they usually are called functional. To determine if congenital factors play a role in these disorders, we examined dermatoglyphic (fingerprint) patterns, a congenital marker, in 155 consecutive patients with gastrointestinal complaints. Sixty-four percent of patients with constipation and abdominal pain before age 10 yr had one or more digital arches, compared with 10% of patients without constipation and abdominal pain (p less than 0.001). Seventy percent of constipated patients with arches had the onset of symptoms before age 10 yr compared with 23% of constipated patients without arches (p less than 0.001) and 14% of patients with symptoms other than constipation (p less than 0.001). Compared with an age- and sex-matched sample of patients without arches, patients with arches had a higher prevalence of constipation and abdominal pain before age 10 (p = 0.003), were more likely (p less than 0.001) to have chronic intestinal pseudoobstruction (an organic disorder), and were less likely (p = 0.013) to have irritable bowel syndrome (a functional disorder). Identification of a congenital marker, digital arches, associated with early onset constipation and abdominal pain may help to differentiate a congenital organic syndrome from functional disorders such as the irritable bowel syndrome.

Abdomen↗
PubMed1986

Fluctuating dermatoglyphic asymmetry and the genetics of liability to schizophrenia.

Schizophrenic subjects were compared to normal and psychiatric control subjects for degree of fluctuating asymmetry in two dermatoglyphic traits, a-b ridge count and fingertip pattern. The schizophrenic group exhibited significantly greater fluctuating asymmetry than either control group. Furthermore, indicators of disease severity such as early onset and declining course of illness correlated with degree of asymmetry. Both of these observations are expected if a disorder has a polygenic basis, since fluctuating asymmetry is a marker of polygenic inheritance.

Dermatoglyphics↗
PubMed1987

Relations between a dermatoglyphic measure, hemispheric specialization, and intellectual abilities in 47,XXY males.

Verbal IQ is usually lower than performance IQ in neonatally identified 47,XXY males. A dermatoglyphic measure reflecting prenatal growth rates and indices of sex-related hormonal functioning are also frequently abnormal in 47,XXY males. This paper presents evidence indicating that a measure of prenatal growth rate predicts right hemispheric specialization for nonverbal processing in extra X males, whereas levels of testosterone, estradiol, luteinizing hormone, and follicle-stimulating hormones do not. Findings are also reported which indicate that the low verbal IQs of 47,XXY males are the result of abnormalities in right hemispheric functioning.

Child↗
PubMed1996

Dermatoglyphic a-b ridge count as a possible marker for developmental disturbance in schizophrenia: replication in two samples.

The aim of this study was to conduct an epidemiological analysis of quantitative dermatoglyphic traits as a marker of prenatal disturbance during the second trimester of life in schizophrenic patients. TFRC (Total Finger Ridge Count) and TABRC (Total a-b Ridge Count) were studied in a sample of 38 schizophrenic patients and 69 healthy individuals. A significant decrease of the a-b ridge count was found in patients compared to controls, with a significant linear trend across the population distribution (OR linear trend = 1.6; 95% CI = 1.0-2.4), indicating that the effect was not confined to a subgroup of cases with values in the lowest range. This finding was replicated in a second, larger sample (OR linear trend = 1.3; 95% CI = 1.0-1.8). The suggestion that a-b ridge count is associated with genetic risk for schizophrenia needs to be investigated further. TFRC did not distinguish between patients and controls. The a-b ridge count may be a continuous risk factor for later schizophrenia, pointing towards a disturbance occurring during the second trimester of prenatal life, a period of critical CNS growth.

Adult↗
PubMed2005

Identification of palm print using dermatoglyphics analysis and detection system.

This paper investigated the biological characteristics of palm print. The preprocessing plays an important role in identifying the ridge characteristics of palm due to the complexity and poor quality of the images. As a functional plug-in of the dermatoglyphics analysis and detection system, the template-based image preprocessing was proposed in this study, including histogram redistribution, ridge orientation, and skeletonization. Using this system, the automatic identification of ridges and triradiuses was accomplished with an effective result. The study demonstrated the feasibility of the method and the potential of the system for being applied as an auxiliary diagnostic tool for heredity diseases (e.g. mammary cancer and neurofibromatosis).

Algorithms↗
PubMed2005

Dermatoglyphics and Schizophrenia: a meta-analysis and investigation of the impact of obstetric complications upon a-b ridge count.

BACKGROUND: Patients with schizophrenia show deviances in their dermatoglyphics, in particular reductions in palmar a-b ridge counts (ABRCs), which are evidence of an early developmental deviance. However, the severity or the origin of these ABRC changes has not been established. METHOD: (i) We examined the published literature on the ABRC in patients with schizophrenia against controls with a random effects meta-analysis. (ii) We used linear regression to study the ABRC in our sample of families including 125 patients with schizophrenia, 107 of their unaffected relatives and 98 controls. (iii) The effect of obstetric complications on the patient's ABRC was examined using the Lewis Murray scale. RESULTS: The pooled standardised effect size of ABRC differences between patients and controls obtained by our meta-analysis was 0.39 (95% CI: 0.05-0.73; p=0.03). In our sample, there were no significant differences in ABRCs between those with schizophrenia, their relatives and controls. Only those patients with obstetric complications had significantly reduced ABRC compared to controls (p=0.01). CONCLUSIONS: We confirmed the presence of significant yet mild ABRC reductions in schizophrenia. These represent a subtle deviance from the norm and could be present in certain subsets of patients, possibly those who suffered early developmental insults.

Dermatoglyphics↗
PubMed2001

Prepubescent children show the adult relationship between dermatoglyphic asymmetry and performance on sexually dimorphic tasks.

The dermatoglyphic pattern of dermal ridges that constitutes the human fingerprint is complete by the 16th foetal week and its development is thought to be influenced by prenatal hormones. Finger ridge count (FRC) is asymmetrical with the majority having more ridges on the finger tips of the right hand (R >) while the minority have more on the left (L >). In adults, the R > condition has been associated with male-typical, and the L > condition with female-typical, performance on sexually dimorphic tasks. Here we report that 60 prepubescent children showed the same sex difference and the same relationship as adults between FRC and task performance: girls and L > children performed a female-favouring task better while boys and R > children performed a male-favouring task better. This finding indicates that these sex-related task performance differences are not dependent on the activational effects of adult gonadal steroids. The implications of these findings for prenatal influences on neuropsychological development are discussed.

Aging↗
PubMed1981

Dermatoglyphics in typical cleft hand.

Dermatoglyphic prints of the typical cleft hand with a rudiment of the middle metacarpal showed that a whorl pattern was present on the ulnar margin of the V-shaped defect, suggesting the fingertip pattern of the middle finger.

Adolescent↗
PubMed1983

Dermatoglyphic patterns in patients with atopic dermatitis.

Fingertip dermatoglyphic patterns of forty-five patients with atopic dermatitis were compared to those of sixty nonatopic dermatologic patients, twenty-one of whom had hand dermatitis. The average number of digits in which linear grooves were detected was significantly higher in the atopic group than in the nonatopic controls (p less than 0.005). Three or more digits with linear grooves were found in 95.2% of atopic patients with hand dermatitis and in 61.9% of controls with hand dermatitis (p less than 0.005). A greater number of digits displaying linear grooves was found in control patients with hand dermatitis than in control patients without hand dermatitis. However, atopic patients with hand dermatitis had, on the average, an even greater number of digits with linear grooves than did control patients with hand dermatitis (p less than 0.005). These findings suggest that linear grooves, although associated with hand dermatitis in general, are more commonly found in patients with atopic hand dermatitis. Although a significant increase in the whorl pattern was detected in female, but not in male, atopic patients when compared to sex-matched control groups (p less than 0.0025), this increase was significant only in Caucasian females when compared to sex- and race-matched controls (p less than 0.0005).

Adolescent↗
PubMed1981

Familial dermatoglyphic analysis in syndactyly type I.

A familial dermatoglyphic study of 25 syndactyly type I patients and 53 unaffected first-degree relatives showed a significant increase of complex fingertip patterns in the patients and in their relatives as well. An embryonic link between the formation of complex fingertip patterns and syndactyly type I is postulated. The study contributes new data on the hereditary transmission of syndactyly type I which cannot be used for individual genetic counseling. Calculation of the recurrence risk is difficult in view of the reduced penetrance of the gene.

Belgium↗
PubMed2001

Is reduced dermatoglyphic a-b ridge count a reliable marker of developmental impairment in schizophrenia?

BACKGROUND: Finger and hand prints are formed during the late first and second trimester of foetal development, after which they remain unchanged. Their expression may be influenced by both genetic and environmental factors. Some studies have suggested that a reduced total finger ridge count (TFRC) and, in particular, a reduce total a-b ridge count (TABRC), may be associated with schizophrenia. AIM: To study these two variables in a large, ethnically homogenous sample and to compare our findings with those of other recent studies. METHOD: Finger and hand prints of 150 people with DSM-III-R schizophrenia were compared with those of 92 healthy controls. RESULTS: Patients had a reduced mean TABRC (P = 0.03) compared with controls. There was a significant (P=0.02) linear trend for lower TABRC and increasing incidence of schizophrenia (ORlineartrend = 1.3; 95%CI1.1-1.7), implying a continuous increase in the risk for schizophrenia with reduction in TABRC. No significant difference between groups was observed for TFRC. CONCLUSION: These results provide further evidence that dermatoglyphic abnormalities exist in at least some patients with schizophrenia and that the a-b ridge count may be a marker of disruption, probably environmental, that occurs when the developing brain may also be particularly vulnerable to such insult. These findings support the concept that some cases of schizophrenia may be due to adverse intrauterine events.

Adult↗
PubMed1977

Topologically significant dermatoglyphic patterns in twins.

A total of 58 dermatoglyphic characters, consisting of topologically significant pattern elements, i.e., loops and triradii, on palms, soles and fingertips, were tested in a sample of 110 MZ and 111 like-sexed DZ twin pairs. The analysis included homolateral, heterolateral and bilateral concordance rates, the derived Hc coefficient, coefficients of the within-pair association, phi, derived chi2 intraclass correlation coefficients and heritability estimates based on variances (h2) and correlations (Hr), and the variance ratio F. A considerable difference was found in respect of "heritability" values between palmar and sole patterns, in that they are the highest for sole loops and triradii and the lowest for most palmar loops. These data are compared with the h2 values obtained from family correlations. The difficulties in the interpretation of "heritability" estimates based on the material of twins are pointed out and particular attention is drawn to a possibility of the additional bias in twin studies related to a degree of symmetry of the characters investigated.

Dermatoglyphics↗
PubMed1975

Dermatoglyphic studies in patients with Cooley's anemia and Cooley's trait.

The dermatoglyphic analysis of a group of Italiam patients with Cooley's anemia and Cooley's trait shows Cooley's anemia patients to undergo a significant increase of loops on fingers and a corresponding decrease of whorls. The total loops frequency correlates negatively with the ridge distribution per loop and the total ridge count is significantly decreased. The atd angles are larger. Minor changes in the distribution of patterns in the thenar and hypothenar areas are also observed. In the Cooley's trait patients, loops on fingers are more frequent than in controls, but no difference with Cooley's anemia series is observed. The above findings suggest that the gene(s) controlling loops formation in linkage disequilibrium with thalassemia mutant may have been favourably selected on the "thalassemia chromosome" in the malaria environment.

Dermatoglyphics↗
PubMed1975

Correlation matrices for palmar dermatoglyphic traits in twins.

Intraclass correlation values have been studied in a sample of 50 MZ and 50 DZ twins with respect to fourteen palmar dermatoglyphic metric traits in binary combinations. The results confirm the general trends already shown in singleton studies. The shape of the palmar surface does not appear to be significantly correlated with other metric traits. Generally speaking, a large independence has been found between the various traits.

Dermatoglyphics↗