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Palmar Dermatoglyphics of Corsicans and Comparison with Those of Sardinians  [PDF]
G. Floris, C. M. Calò
Advances in Anthropology (AA) , 2018, DOI: 10.4236/aa.2018.84014
Abstract: We report on five dermatoglyphic traits recorded on palm prints in sample of Sardinians and Corsicans. The two populations are very similar but not identical.
Iranian Journal of Public Health , 1978,
Abstract: Finger Patterns and ridge-counts in a random sample of Iranian Muslims consisting of 100 males and 100 females are described. The most common finger patterns found were loops, having a frequency of 54.4% U.L., 3.4% R.L. in males and 51.2% U.L. and 4.8% R.L in females. The frequencies of arches and whorls in both sexes were 4% and 38.5% respectively. Bimanual and sex differences were indistinct. A Pattern type index of 11.85 and a pattern intensity index of 13.39 were found in both sexes combined. The mean total finger ridge-count observed is 166.54 in males and 160.93 in females. A significant sex difference of mean ridge-count was observed for digit numbers L3, L4, R2 and also for the total finger ridge-count with regard to bimanual difference for digit 2 in males and for digit 3 in females. The interpretation of the noted observations is discussed.
Directional and fluctuating asymmetry in finger and a-b ridge counts in psychosis: a case-control study
Sukanta Saha, Danuta Loesch, David Chant, Joy Welham, Ossama El-Saadi, Lourdes Fa?anás, Bryan Mowry, John McGrath
BMC Psychiatry , 2003, DOI: 10.1186/1471-244x-3-3
Abstract: Individuals with psychosis (n = 240), and normal controls (n = 228) were drawn from a catchment-area case-control study. Differences in finger and a-b ridge count and Fluctuating Asymmetry were assessed in three group comparisons (non-affective psychosis versus controls; affective psychosis versus controls; non-affective psychosis versus affective psychosis). The analyses were performed separately for males and females.There were no significant group differences for finger nor a-b ridge counts. While there were no group difference for Directional Asymmetry, for Fluctuating Asymmetry measures men with non-affective psychosis had significantly higher fluctuating asymmetry of the index finger ridge count (a) when compared to controls (FA-correlation score, p = 0.02), and (b) when compared to affective psychosis (adjusted FA-difference score, p = 0.04).Overall, measures of finger and a-b ridge counts, and their derived measures of directional and fluctuating asymmetry were not prominent features of psychosis in this sample. While directional asymmetry in cerebral morphology is reduced in schizophrenia, this is not reflected in dermatoglyphic variables.While the aetiology of schizophrenia is still poorly understood, many researchers believe that the disorder is a consequence of genetic and environmental factors that impact on brain development [1-3]. Because prenatal brain development is not open to direct scrutiny, researchers have resorted to the study of minor physical anomalies and dermatoglyphic variables. Dermatoglyphic patterns form on the finger pad and on the palm by the end of the second trimester and remained unchanged thereafter [4,5], thus these features may serve as proxy markers of altered early development in psychosis [6,7].In recent decades a large body of biological research has developed around the concept of fluctuating asymmetry (FA), which has been defined as random differences between the right (R) and left (L) sides of a morphological trait [8].
Palmar and digital dermatoglyphic traits of Kenyan and Tanzanian subjects
PS Igbigbi, BC Msamati
West African Journal of Medicine , 2005,
Abstract: Dermatoglyphic traits, along with other morphological, molecular and biochemical markers have traditionally been used in biological anthropology to explore affinities and differences among human groups. Methodology: We carried out a cross-sectional study of healthy able-bodied volunteers of indigenous Kenyan and Tanzanian subjects to establish their palmar and digital dermatoglyphic traits, by counting and classifying their ridge pattern configurations of arches, loops, whorls and ridges based on standard techniques. Results: Ulnar loops were the most prevalent digital ridge patterns and arches were the least in our samples with significant sex differences exhibited in arches, ulnar loops and whorls (P < 0.05). Similarly, men had significantly higher TFRC than women in Kenyans (P < 0.001), while Tanzanians showed no sex difference (P < 0.5). Women, however, had higher PII than men in Kenyans but the reverse was true in Tanzanians. In both groups, men showed significantly higher mean a-b ridge counts than women (P < 0.001, Kenyans; < 0.01, Tanzanians), and women showed greater mean atd angles than men (P > 0.5). The TFRC, atd angle and a-b ridge count were significantly different between Kenyans and Tanzanians (P < 0.001). Conclusion: This study documents probably for the first time the normal and comparative dermatoglyphic traits of two East African populations, indicating that Tanzanians are dermatoglyphically closer to Malawians than Kenyans.
A study of palmar dermatoglyphics and palmar freckles  [cached]
Premalatha S
Indian Journal of Dermatology, Venereology and Leprology , 1995,
Abstract: A study of palmar dermatoglyphics in genodermatoses was conducted in 219 probands and 100 control subjects by standard ink and roller method, during the period 1977-81 at Government General Hospital, Madras. A study of palmar dermatoglyphics in 20 probands with definite clinical and histopathological evidence of Neurofibromatosis revealed an increased incidence of ulnar loop pattern over the finger tips in both sexes. This digital pattern was not found to be of statistical significance, but a statistically significant reduction in the mean a-b ridge count was observed in female cases. An increased incidence of palmar freckles (60%) was observed as a serendipity while taking the palm prints. Some of the palmar freckles with tiny palpable underlying nodules on histopathological study revealed miniature neurofibroma in the dermis. This serendipity has been recorded as an important clinical sign of neurofibromatosis by the author in her thesis submitted for Doctorate degree in 1981.
Bilateral incomplete superficial palmar arch
Lakshmiprabha R,Murthy NHL,Komala B,Kumaran SD
International Journal of Anatomical Variations , 2009,
Abstract: A rare variation of bilateral incomplete palmar arch was observed during routine dissection of a cadaver. Ulnar arteries gave rise to two common palmar digital arteries supplying the ring and little fingers and one proper palmar digital artery, which supplied ulnar side of little finger. Radial artery gave rise to two common palmar digital arteries that supplied the remaining fingers. Right side also had a palmar carpal branch from deep palmar arch.
Incomplete superficial palmar arch  [PDF]
Mookambica RV,Nair V,Nair R,Somayaji SN
International Journal of Anatomical Variations , 2010,
Abstract: Superficial palmar arch is an arterial arcade and a dominant vascular structure of the palm. It is defined as the anastomoses between the superficial branch of the ulnar artery and superficial palmar branch of the radial artery. Generally arteria radialis indicis and arteria princeps pollicis are the branches of deep palmar arch. The authors report a variation of superficial palmar arch alone formed by superficial branch of ulnar artery and giving origin to arteria radialis indicis and arteria princeps pollicis. In hand surgeries like vascular graft applications arterial repairs, free and/or pedicled flaps, clinicians should be aware of these variations.
Palmar dislocation of scaphoid and lunate  [cached]
Khalid Koulali Idrissi,Farid Galiua
Clinics and Practice , 2011, DOI: 10.4081/cp.2011.e87
Abstract: A palmar dislocation of scaphoid and lunate is uncommon. We have found only 19 reported cases in the literature. We reported a simultaneous, divergent dislocation. The closed reduction followed by percutaneous pinning has given a good result without avascular necrosis of any carpal bone.
Dermatoglyphic characteristics of digito-palmar complex in autistic boys in Serbia  [PDF]
Sto?ljevi? Miodrag,Adamovi? Milosav
Vojnosanitetski Pregled , 2013, DOI: 10.2298/vsp1304386s
Abstract: Introduction/Aim. Dermatoglyphics is a science that examines dermal patterns on volar side of both palms and soles. Since dermatoglyphs are unique for each person, by examining them a number of parameters can be determined. These parameters could help to diagnose and treat examined individulas. The aim of this study was to determine possible differences of the dermathoglyphic characteristics of digito-palmar complex (DPC) comparing the autistic boys with the healthy examinees. Methods. This study was conducted on a group of 182 boys with infantile autism, aged from 5 to 15 (average age 7.2 years) while the control group consisted of 182 healthy men from 30 to 50 years (average age 38.7 years). Within the digital scope of DPC we examined tree types of dermatoglyphic patterns on fingertips (arch, loop and whrol), as well as dermal ridge count on each finger separately (FRC - finger ridge count) and total dermal ridge count on all the ten fingers (TRC - total ridge count). Within the palmar DPC area we measured the angles between the triradius (atd, dat, adt, atb, btc, ctd), as well as dermal ridge count (RC - ridge count) between the triradius a-b, b-c and c-d. Results. The autistic boys had a significantely higher count of arches (9.17%) on fingertips of both hands when compared to the control group of examinees (4.34%), and the lower count of loops (28.40%) compared with the control group (32.42%). A higher count of arches was especially expressed on the fourth and fifth finger of both hands. Beside this characteristic, the autistic boys had a lower TRC and ab-RC as well as a wider atd angle. Conclusion. Dermatoglyphic analysis could help in diagnosing autism but only as an additional method, never as a dominant diagnostic procedure.
Morphologic variations of the superficial palmar arc  [cached]
Moraes Sílvia Regina Arruda de,Araújo Tamara Nunes de,Silva Alexandre Roque da,Paula Amanda Rodrigues de
Acta Cirurgica Brasileira , 2003,
Abstract: The superficial palmar arc ensures the blood supply to the palm of the hand. It is formed by the ulnar artery and the superficial palmar branch of the radial artery (classic pattern), shows a distal convexity, from where three ordinary digital palmar arteries go out. It is located over the flexor muscles of the fingers, the lumbrical muscles, and the branches of the median and the ulnar nerves, under the protection of the palmar aponeurosis. PURPOSE: The fact of frequent anatomic variations attracted the interest in checking its incidence, improving the knowledge of the territory of the hand aiming clinical and surgical applications. The aim of this study is the observation of the morphology of the superficial palmar arc and the frequency of the variations regarding the contribution of the other arteries to its formation. METHODS: To carry out this work, 30 pieces of corpse, fixed in a watery solution of formaldehyde, were studied by the method of macroscopic dissection. The analyzed pieces were designed and photographs were taken, and the obtained results, statistically, applying the test of equality of proportions, had a level of trust of 95%. RESULTS: An amount of 100% showed the superficial palmar arc. From these, 18 cases (60%) showed anastomosis among the arteries that form the arc and 12 cases (40%) did not. Concerning about the arterial contribution for the arc formation, the following results were obtained: 11 cases (36,67%) were formed by the anastomosis of the ulnar artery with the superficial branch of the radial artery; 7 cases (23%) were formed by the ulnar artery only; 4 cases (13,33%) were formed by the ulnar artery and the superficial branch of the radial artery without anastomosis; 4 cases (13,33%) were formed by the anastomosis of the ulnar artery with the main artery of the thumb; 3 cases (10%) were formed by the anastomosis of the ulnar artery with the median artery of the forearm; 1 case (3,33%) was formed by the ulnar artery and the median artery without anastomosis. CONCLUSION: These results show the incidence of the classic pattern and variations of morphology and different types of contribution for the formation of the superficial palmar arc.
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