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At least 739 records · Page 41Linked to original sources
PubMed1982

Kinship coefficients and genetic distance among 23 Mexican Indian tribes.

Genetic distances (d) and kinship coefficients (f) of 23 Mexican Indian groups were obtained, based on the results of ABO, Rh, MN, Duffy and Diego blood group systems and serum haptoglobins. The results obtained did not correlate well with linguistic classification or geographical location and we conclude that the method used is not sensitive enough to correctly separate relatively similar groups which have different degrees of external admixture (with blacks and caucasians) and internal admixture (among themselves).

Blood Group Antigens↗
PubMed1994

Prevalence of sickle cells in Irula, Kurumba, Paniya & Mullukurumba tribes of Nilgiris (Tamil Nadu, India).

A total of 1377 tribals, comprising Irulas (536), Paniyas (196), Kurumbas (87), Mullukrurumbas (156) and Soligas (402), living in the Nilgiris, Tamil Nadu, India were studied for sickle cell trait between 1981-85. Patients attending various tribal clinics at Arayure, Kozhikarai, Kothagiri and Biligiri Rengan hills for various ailments were screened at random by solubility test and by acetate paper electrophoresis, if required. HbAS carrier frequency was 30-37.8 per cent in all the tribals studied except Kurumbas (19.5%). The frequency of carriers were more (37.8%) on the western part of Nilgiris (Nedungode, Kappala and adjoining regions) than the eastern part (30%). Further, the prevalence of carriers was higher (47-49%) in the 10-19 yr age group amongst Paniyas and Mullukurumbas living in the western part of Nilgiris. An episodic, epidemic of malaria so rampant during the early part of this century in the western parts of Nilgiris might have eliminated many children with HbAA and hence the higher frequency of HbAS in this particular age group.

Adolescent↗
PubMed1976

Studies of rheumatoid arthritis among a tribe of Northwest Indians.

Thirty-six women from a Northwest Indian population known to have an increased prevalence of rheumatoid arthritis were studied. The course of the clinical disease was that of erosive rheumatoid arthritis with characteristic involvement of metacarpophalangeal and wrist joints. Rheumatoid factor and antinuclear antibody tests were frequently positive, and reactions to gold therapy were more frequent than in other rheumatoid populations. Viral antibodies were similar in the rheumatoid and the control groups. HL-A W24 and HL-A BW40 were increased in both the diseased and the control Indian populations.

Antibodies, Viral↗
PubMed1993

Metric characters of the hard palate and their cephalometric correlations in Namibian !Kung San and Kenyan tribes.

The metric characters of the head and hard palate of 138 black males from Kenya and 110 male !Kung San from Namibia have for the first time been compared to describe the black and Khoisan variation with respect to these special trait systems. The palate measurements were taken from prints of self-hardening plastic. Nearly all metric characters show significant differences between the two populations, which are reflected in a relevant discriminant function. The analyses of correlations between the individual head and palate measurements yield different correlation patterns in the two samples also with regard to their significance and direction. These results and the generally low correlation coefficients can be explained by the complex processes of allometric head growth, resulting in the Sans' pedomorphous and the blacks' more adultiform head and palate trait combinations.

Adult↗
PubMed1977

Two more "private" polymorphisms of Amerindian tribes: LDHb GUA-1 and ACP1 B GUA-1 in the Guaymi in Panama.

A survey of Guaymi Indians of Panama for the occurrence of genetic variants of 25 proteins of the erythrocytes and sera have revealed, in addition to seven well-known genetic polymorphisms, four rare variants and two "private polymorphisms," the latter involving erythrocyte acid phosphatase and lactate dehydrogenase. The significance of such private polymorphisms in tribal populations to the interpretation of rare variants in civilized populations is emphasized.

ABO Blood-Group System↗
PubMed1997

A study of the distribution of ABO and Rh(D) blood groups amongst Lodha tribe in Midnapore district of West Bengal.

Distribution of ABO and Rh(D) blood group was studied in 206 Lodha subjects living in the Midnapore district of West Bengal. It was observed that incidence of group A was maximum and incidence of group AB was minimum; 99.5% of the subjects were 'Rh' positive. The highest incidence of group A amongst Lodhas indicates that they might belong to the proto-Australoid group anthropologically.

ABO Blood-Group System↗