ABSTRACT
【Objective】 To understand the distribution and gene frequency of main red blood cell blood groups in Lahu ethnic minority and analyze the genetic characteristics of Lahu people. 【Methods】 1) ABO forward and reverse typing had been performed by microplate method; 2) Rh, MN, H, P1Pk and Mur antigen were tested by the tube method. If the ABO forward and reverse typing were incompatible, the tube method was used for confirmation. 【Results】 The distribution characteristics of blood group and gene frequency in Lahu ethnic minority were as follows: B>O>A>AB for ABO, with genotype frequency as p 11.1%, q 27.5% and r 61.4%; the frequency of Rh genotype was CDe 83.3%, cDE 12.0%, cDe 2.42%, CDE 2.32%, CdE 0%, Cde 0%, cdE 0% and cde 0%; M > MN>N for MN blood group, with genotype frequency as M 75.26% and N 24.74%; P1
ABSTRACT
Objective To provide guidance for oral health prevention by investigating oral health status of 480 Lahu people.Methods Oral health status of 480 Lahu people were investigated by trained dental therapists using standard diagnostic criteria and record.Participants were divided into 4 groups according to their age.Results The Lahu People in Linxiang county suffered from severe dental caries and periodontal disease.The caries prevalence rate among children of 5 years old was 78.3％.The rate of calculus among the children of 12 years old was 75％.The prevalence rates of caries and periodontal pockets were 91.7％ and 43.3％ among the adults between 35 and 44 years old.The above data were significantly higher than the results of the Third National Oral Health Survey.The rates of gingival bleeding and periodontal pocket were 51.7％ and 49.2％ among the aged from 65 to 74 years old,which were lower than that of the Third National Oral Health Survey.Among the participants,76％ never brushed teeth and 85％ brushed teeth only once a day in people who brushed teeth regularly.Conclusion Poor status and maintenance of oral health in the Lahu People suggest that education and resources for oral health should be invested.
ABSTRACT
We observed and measured the structures showing the golden ratio in human body. Southeast Asian tribes, Aka and Lahu who live in Thailand, Miyanmar and China mountain areas and Koreans were examined by means of facial photography. The pictures of lateral facial view were taken by the fixed method. Then the length and width of auricles were measured by Phi-matrix software (version 1.1) on the scanned images. Helix ratio were also obtained by the same method. As a results, the ratio of the ear of Southeast Asian tribes showed the golden ratio and the racial and the individual differences were noticed a little.
Subject(s)
Humans , Asian People , Beauty , China , Ear , Human Body , Individuality , Photography , Population Groups , ThailandABSTRACT
In this study of the physical anthropological characteristics of the Akha and Lahu in northern Thailand, whose customs are similar to the Koreans, the authors examined the finger and palm prints of the Akha (male 107, female 114) and Lahu (male 92, female 101) using qualitative methods, and compared them with those of various ethnic groups including Koreans. The results were as follows : The whorl types (Akha 57.7%, Lahu 58.1%) were the most common finger prints, followed by ulnar loop types (Akha 39.7%, Lahu 38.7%), arch types (Akha 2.6%, Lahu 2.8%), and radial loop types (Akha 1.7%, Lahu 1.2%). Of the palm print types, 9-7-5 (Akha 32.7%, Lahu 21.3%) and 7-5-5(Akha 25.4%, Lahu 21.3%) were most common, followed by 11-O-7 (Akha 2.0%, Lahu 11.3%), 9-O-5 (Akha 1.5%, Lahu 10.0%), 11-9-7 (Akha 6.0%, Lahu 5.7%), 7-5-4 (Akha 7.0%, Lahu 2.2%). The finger and palm print patterns of the Akha and Lahu did not correspond closely to the patterns of those classified as White, Negro, or Oriental, although they were closest to the patterns of the latter, particularly Chinese (rather than Korean or Japanese).
Subject(s)
Female , Humans , Black People , Anthropology , Asian People , Dermatoglyphics , Ethnicity , Fingers , ThailandABSTRACT
In order to clarify the genetic relationship between Koreans and Akha, Lahu native tribes around the mountain area in Northern Thailand, authors examined the metric and non-metric mophological variations of the maxillary anterior teeth. The subjects were 54 in Akha tribe (25 males, 29 female) and 114 in Lahu tribe (57 males, 57 females), and their ages were 20 to 65 (mean age 34). The prevalence of the shovel-shaped incisor in maxillary anterior teeth was 85% in Lahu tribe. Among the another non-metric variations, the prevalence of the peg lateralis was 3 cases in Akha female and 8 cases in Lahu tribe (4 males, 4 females). And the supernumernary tooth located between the right and left maxillary central incisors was observed in 2 cases, the congenital missings of the maxillary lateral incisor were in 2 cases(1 Akha, 1 Lahu tribe), and the congenital missings of the maxillary canine were in 3 cases(1 Akha, 2 Lahu tribe). The maximal mesio-distal diameters of the maxillary anterior teeth in Akha and Lahu tribes showed no discrepancy with regard to those of koreans and the dental measurements of the male were larger than the female (p<0.05). The dental measurements of the Lahu tribe were more closer to Korean than those of Akha Tribe were. Especlally, the mean mesio-distal diameter of the maxillary anterior teeth in Lahu female had no difference to Korean adult female (p<0.05). On the basis of the above results, authors thought that the anthropological similarity to Koreans was higher in Lahu than Akha tribe with respect to the dentition, but the further anthropological studies such as the height, body proportion, and finger print should be needed.
Subject(s)
Adult , Female , Humans , Male , Body Height , Dentition , Fingers , Incisor , Population Groups , Prevalence , Thailand , ToothABSTRACT
Objectives To learn the bednet use and influential factors among Wa and Lahu ethnics,and further to explore feasible ways of promoting the use of bednets and insecticide-treated nets (ITNs). Methods Questionnaire surveys and statistical analysis with EpiInfo 2000 software package were carried out. Results Only did 2.8% [95% confidence intervals(95%CI):1.2%-5.4%] of Wa and 4.8 % (95%CI:2.8%-8.1%) of Lahu ethnic members use bednets frequently or sometimes. Bednets were not available for 67.7% (95% CI:62.0%-73.1%) of Wa and 59.7% (95% CI:53.1%- 66.1%) of Lahu ethnic peoples. Most people who had bednets did not often use them for anti-mosquitoes. Results of multivariate logistic regression confirmed significant correlation between bednet use and knowledge of malaria prevention. Conclusion The coverage and use rates are very low in the two ethnical minorities. Health education, communication and social marketing are the strategies for promoting the usage of bednet and ITNs.