Race differences in the sex dimorphism of dermatoglyphic traits

Schwidetzky, Ilse; Jantz, Richard L.

doi:10.1016/0047-2484(79)90006-x

Cited by 11 publications

(4 citation statements)

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“…Significant sex differences are known for many dermatoglyphic features (Cummins & Midlo, 1943; Schwidetzky & Jantz, 1977, 1979), and given the known ontogeny of dermatoglyphic structures, they must be established and fixed prenatally. On the one hand, sex differences might be strongly conservative, for instance populationwide sex differences in frequencies of dermatoglyphic whorl patterns on the 4th finger on the right hand were found to be statistically almost identical across hundreds of human populations (Králík, Polcerová, et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Radioulnar contrasts in fingerprint ridge counts: Searching for dermatoglyphic markers of early sex development

Polcerová

Chovancová

Králík

et al. 2021

American J Hum Biol

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Objectives Using prenatally fixed dermatoglyphics features as markers of prenatal sex development is limited due to insufficient knowledge on their sex differences. This study aims to examine more thoroughly sex differences in radioulnar contrasts. Methods Fingerprints of 360 females and 331 males from four samples of different ethnic backgrounds (Czechs, Slovaks, Vietnamese and Lusatian Sorbs) were studied. On both hands, finger ridge counts were recorded, and all possible radioulnar contrasts were computed as a difference between ridge count at a radial position minus ridge count at a respective ulnar position on the hand. Radioulnar contrasts with population‐congruent and numerically large dimorphism were selected and the dimorphism of the selected radioulnar contrasts was then tested using nonparametric analysis of variance. Results Greater dimorphism of radioulnar contrasts occurred on the right hand than on the left hand. Population congruent direction and relatively strong dimorphism (Cohen’s d greater than 0.3) was found in six radioulnar contrasts on the right hand, all of which involved the radial ridge count of the 2nd finger. Of these, the highest average dimorphism was observed for the difference between the radial ridge count of the 2nd finger and the ulnar ridge count of the 4th finger (2r4u contrast), where the average effect size from all four population samples was comparable to a published average effect size of the 2D:4D finger length ratio. Conclusion We propose that 2r4u contrast of ridge counts could serve as a marker of prenatal sexual development targeting a temporally narrow developmental window.

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Section: Introductionmentioning

confidence: 99%

Radioulnar contrasts in fingerprint ridge counts: Searching for dermatoglyphic markers of early sex development

Polcerová

Chovancová

Králík

et al. 2021

American J Hum Biol

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“…14 It is also known that diverse populations represented different sexual dimorphic characteristics. [2][3][4][5][6][7][8][9][10][11][12][13][14][15] For example, studies on Turkmenians, Chuvasians, and Eastern European, African, Middle Eastern, and Yeminite-Jews, all demonstrate significant sexual dimorphism, but their levels of expression vary 1988). 16,17 Tiwari et al's 18 study on Tibetans found that whorl was the most common pattern followed by loop and arch in males.…”

Section: Introductionmentioning

confidence: 99%

Medicolegal evaluation of pontine hemorrhage at autopsy- Highlights from a case and an overview

Maity

Dolai²

2021

IJFMTS

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One in ten non-traumatic intracerebral hemorrhages (ICH) is located in the pons with chronic arterial hypertension as the leading etiology. In the forensic context, deaths related to a pontine hemorrhage (PH) are usually encountered in situations of drug abuse, excited delirium, trauma, as well as in sudden natural deaths where some hypertensive catastrophe is the usual underlying mechanism. The clinical presentation of PH may be variable, causing a failure in timely diagnosis that, if presents with unexplainable circumstances, may become the subject of medicolegal concern. The present case relates to a middle-aged man with a long history of hypertension and presents during an afternoon with an abrupt onset of deleterious symptoms. The patient was managed conservatively but succumbed to his illness and expires during treatment. A questionable diagnosis and the case circumstances, however, directed the doctors to inform the police. A medicolegal autopsy was therefore carried out that leads to the discovery of a lethal pontine hemorrhage rupturing into the fourth ventricle and involving the adjacent cerebellar tissues as well. Severe atherosclerosis of the basal arteries constituting Circle of Willis and Vertebrobasilar system was seen along with their hallmark effects that became evident during brain sectioning. Pathological stigmata of well established hypertension were found in the heart and kidneys. A clinic pathological correlation of the physical characteristics and topography of the hematoma to its severity was also carried out, based upon the known CT and autopsy findings. The possibility of a drug related or traumatic and secondary brainstem/Duret hemorrhage was ruled out.

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“…However, as no significant interethnic differences in pattern asymmetry were revealed, this allowed us in the consequent analysis to regard all Ob Ugrians as a single group. However, the male and female samples were analysed separately, as the finger and palm patterns are subject to sexual dimorphism (Cummins and Midlo, 1961;Schwidetzky and Jantz, 1979). Considering the method restrictions arising from the quantitative evaluation of the dermal ridge relief, we considered only the pattern types, and assessed the coincidence of arches, loops and whorls on corresponding fingers of the right and left hands.…”

Section: The Health Consequences Of Modernization the Health Consequementioning

confidence: 99%

Indigenous Peoples of Northern Russia: Anthropology and Health

Kozlov¹,

Vershubsky²,

Kozlova³

2007

International Journal of Circumpolar Health

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CHS is an independent publication series and publishes a wide variety of material in the field of circumpolar health and wellbeing. It is intended that the produced material is of considerable value for health care professionals and officials in circumpolar areas, or may otherwise be useful for health care development and practices in the circumpolar areas. It is planned, and depending on our clients and collaborators needs, that we will publish a varying amount of supplements annually. At this moment the first issue of the Circumpolar Health Supplements is available at the web pages of Int J Circumpolar Health (IJCH) (www.ijch.fi). This issue has also been distributed to all subscribers of IJCH free of charge. At present we are preparing to include the new supplement series in the different indexes. How to subscribe, how to conduct group orders of hard copies, and other practical issues will be detailed at the web pages of IJCH. This information will be also be indicated in the coming issues of IJCH and the next issue of CHS, which will be published in

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Race differences in the sex dimorphism of dermatoglyphic traits

Cited by 11 publications

References 0 publications

Radioulnar contrasts in fingerprint ridge counts: Searching for dermatoglyphic markers of early sex development

Radioulnar contrasts in fingerprint ridge counts: Searching for dermatoglyphic markers of early sex development

Medicolegal evaluation of pontine hemorrhage at autopsy- Highlights from a case and an overview

Indigenous Peoples of Northern Russia: Anthropology and Health

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