Sexual dimorphism in dermatoglyphic traits and fluctuating asymmetry in Bulgarians from northeast Bulgaria

Andreenko, Emilia; Baltova, Sofia

doi:10.1016/j.jchb.2017.05.006

Cited by 9 publications

(7 citation statements)

References 58 publications

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“…[13][14][15] Bilateral differences in the dermatoglyphic patterns have been demonstrated as criteria for the ability of the body to neutralize harmful effects during the prenatal period. [16,17] The results of our study show the variability and bilateral asymmetry in fingerprint patterns between healthy and mentally diseased Bulgarians and searching for their relationship with mental disorders.…”

Section: Discussionmentioning

confidence: 83%

Fingerprint Patterns and Their Bilateral Differences in Patients With Mental Disorders and Healthy Controls

Petrova¹,

Andreenko²,

Yaneva³

et al. 2020

JofIMAB

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Background: Patients with schizophrenia and bipolar disorder (BD) type ² display an increased prevalence of apparently innocent changes in their patterns and count of their dermatoglyphics.Aim: The aim of the present study is to assess the variability and bilateral asymmetry of fingerprint patterns in healthy individuals and mentally diseased patients and established their relationship with disease.Methods: The study included 344 subjects of Bulgarian ethnicity, aged 18-64 years, 285 mentally healthy and 59 schizophrenia and BD Type I patients. The patients met DSM-V criteria for schizophrenia and BD Type I. Fingerprints were obtained by the typographic method, in a rotating manner. Papillary patterns were classified into four main types. The data were analyzed statistically with SPSS 17.0 software.Results: The differences in fingerprint patterns on both hands of healthy and mentally diseased males show a trend of statistical significance in their distribution (p = 0.065). We found that Furuhata and Poll's indices are lower in mentally diseased males, that seems logical from the standpoint of lower frequency of whorls and higher frequency of ulnar loops presented in them. Our results show the greater asymmetry between fingerprint images of homologous digits of the diseased males on the second finger, and of the diseased females -on second and on the third finger. Conclusion:The results of this study provide a perspective on potential biomarkers and support neurodevelopmental concepts of the etiology, pathogenesis and diagnosis of psychotic disorder.

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Section: Discussionmentioning

confidence: 83%

Fingerprint Patterns and Their Bilateral Differences in Patients With Mental Disorders and Healthy Controls

Petrova¹,

Andreenko²,

Yaneva³

et al. 2020

JofIMAB

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“…Sex dimorphism does not appear to have been examined in a detailed manner. The usual finding for European‐derived populations is males have higher TRC and ARC values, and this is also the case for most individual digits (e.g., Andreenko & Baltova, 2017). But the way digits interact to produce multidimensional sex difference is inadequately understood.…”

Section: Introductionmentioning

confidence: 82%

Finger ridge‐counts correlate with the second to fourth digit ratio (2d:4d)

Jantz

2021

Am J Hum Biol

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Objectives This study examines the relationship of finger ridge‐counts to second to fourth digit ratio, which has not yet been definitively demonstrated. The related question of sex dimorphism in finger ridge‐counts is further elucidated. Methods A sample of Germans, including 1134 males and 1031 females, was examined for sex dimorphism in the finger ridge‐counts. Second and fourth digit lengths were measured in a sub‐sample of 91 males and 100 females to compute second to fourth digit ratio. Principal component scores were obtained to investigate sex dimorphism and the correlation between ridge‐counts and digit ratio. Regression and analysis of covariance were used to investigate relationships. Results Males generally have higher ridge‐counts than females but subtle dimorphic features emerge from the principal components, such as a contrast between digits 2 and 4, suggesting a ratio analogous to the digit ratio. The most dimorphic feature is digit 1 directional asymmetry, males exhibiting a stronger right bias than females. Digit ratio is significantly related to four principal components, expressing various contrasts among digits. Other relationships involve contrasts between digits 3 and 5 and asymmetry on digit 2. Conclusions This paper provides definitive evidence that finger ridge‐counts correlate with second to fourth digit ratio. The most important finding is that associations of ridge‐counts with digit ratio do not involve commonly used summary counts over all digits. Rather, associations act more locally, in ways paralleling the digit ratio, in others reflecting asymmetry. The results support the idea that prenatal sex hormones affect finger ridge‐counts.

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“…Higher values of finger, palm and interdigital ridge counts were assessed in Bulgarian males who also had higher frequency values of Hy, Th/III and Th/IV patterns. 5 Sex-related variations in epidermal ridge breadth (thickness or density) on whole palms of Caucasian Spanish population were detected: females showed significantly narrower ridges and more ridge density than similarly-aged males. 6 In Chuvashian population of Russia, obvious sexual dimorphism of digito-palmar dermatoglyphics was also observed.…”

Section: Introductionmentioning

confidence: 96%

Digito-palmar dermatoglyphics: variations and prediction of brain disorders

Haroun

2019

MOJAP

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Dermatoglyphics is the science describing the configuration and frequency of the epidermal ridges on the palms, soles and their digits. They are stable throughout life and remain unchanged unless the epidermis is destroyed. Dermatoglyphics are completely developed, from the ectoderm, by about the 18 th intrauterine week and they stay unaltered in late prenatal and postnatal lives. Individual, ethnic, sex, age and laterality variations of dermatoglyphics do exist. Finger-and handprints are extensively used in criminology. Moreover, analysis of dermatoglyphics has been recently utilized in the diagnosis of some medical and genetic disorders. Dermatoglyphics could be used as predictors of some brain disorders like schizophrenia, autism, Alzheimer's disease, congenital mental retardation, cerebral palsy, multiple sclerosis, dyslexia and hereditary sensorineural deafness.

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Sexual dimorphism in dermatoglyphic traits and fluctuating asymmetry in Bulgarians from northeast Bulgaria

Cited by 9 publications

References 58 publications

Fingerprint Patterns and Their Bilateral Differences in Patients With Mental Disorders and Healthy Controls

Fingerprint Patterns and Their Bilateral Differences in Patients With Mental Disorders and Healthy Controls

Finger ridge‐counts correlate with the second to fourth digit ratio (2d:4d)

Digito-palmar dermatoglyphics: variations and prediction of brain disorders

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