Trends of Overweight and Obesity in Yi People between 1996 and 2007:An Yi Migrant Study

Objective To evaluate trends of overweight and obesity prevalence between 1996 and 2007 in Yi farmers and Yi migrants.Methods An Yi migrant study was conducted in Liangshan Yi Autonomous Prefecture,Sichuan Province,China from 1996 to 2007.Data were collected with identical methods,including standardized questionnaire and body measurements.Results Age‐ and sex‐specific body mass index （BMI） significantly increased from 20.02 in 1996 to 22.36 in 2007,among Yi farmers,which was significantly different from those among Yi migrants （23.67 in 2007 and 20.90 in 1996） （P0.05）.Prevalence of obesity rose from 1.21 % in 1996 to 4.55 % in 2007 （OR=1.15,P0.001） in Yi migrants,while that in Yi farmers from none in 1996 to 0.12 % in 2007 （P0.05）.Prevalence of overweight rose significantly to 26.24 %in 2007 from 17.24 % in 1996 （OR=1.06,P0.001） in Yi migrants,while that in Yi farmers from 1.29 % in 1996 to 4.45 % in 2007 （OR=1.14,P0.001）.Yi migrants appeared to have a 5.52‐fold higher risk ondeveloping overweight and obesity than Yi farmers have.Conclusion The Yi migrants had a steeper increase of overweight with year and consequently caused more obesity.Change in lifestyle may contribute most likely to higher prevalence of overweight and obesity in Yi migrants.

Body Mass Index and Hypertension Hemodynamic Subtypes in Yi Farmers and Migrants

Objective To examine the relationship between overweight or obesity and the risk of the various hypertension hemodynamic subtypes in Yi farmers and migrants. Methods A cross-sectional study of 2 358 Yi farmers and 2 392 Yi migrants was carried out in the Liangshan Yi autonomous prefecture, Sichuan, China in 2007. Results The standardized prevalence of overweight in female Yi farmers （6.22%） was higher than in males （3.25%）, whereas in Yi migrants 32.56% of males and 28.78% of females were overweight. The standardized prevalence of obesity was 0 and 0.62% in male and female Yi farmers, compared to 3.91% and 5.57% in male and female Yi migrants, respectively. For both genders the standardized prevalence of ISH, IDH, and SDH was higher in Yi migrants than Yi farmers. Overweight and obese Yi men and women had a higher risk for IDH and SDH （P〈O.002） than non-overweight/obese individuals. However, an association of overweight or obesity with ISH was observed only in men. Conclusion Yi migrants have substantially higher proportion of overweight and obese individuals, as well as individuals affected by ISH, IDH, and SDH, than do Yi farmers. Overweight and obesity are significant risk factors for the development of hypertension in Yi people.

Eruptive xanthomas in a patient with severe hypertriglyceridemia:A case report

BACKGROUND Xanthomatosis,a metabolic disorder causing yellow growths(xanthomas),poses challenges in lipid metabolism.This case study introduces the first documented instance within China's Yi population,emphasizing the need to explore dietary habits and treatment strategies tailored to this specific community.CASE SUMMARY Xanthomatosis is a metabolic disorder where lipid metabolism goes awry,resulting in the development of yellowish growths called xanthomas.A male patient,47 years of age,from China's Yi population,who is obese,visited our dermatology clinic complaining of widespread,non-painful rashes that have been present for two weeks.The patient works as a chef and has a diet that frequently includes oily and greasy foods.This case represents the initial documentation of xanthomatosis within the Yi population in China,offering a theoretical foundation for understanding dietary patterns and treatment options specific to the Yi community.CONCLUSION The first report of xanthomatosis in the Yi population in China lays a theoretical foundation for understanding Yi dietary patterns and treatment.

Comparison on conjunctival sac bacterial flora of the seniors with dry eye in Ganzi autonomous prefecture

AIM:To compare the bacterial flora in palpebral conjunctiva of xerophthalmia seniors of Tibetan,Yi and Han,and analyze the differences and similarities of the bacteria.·METHODS:The test subjects were selected from 2Tibetan,2 Yi and 3 Han populated places,respectively.Total 222 seniors(444 eyes) with dry eye were examined.Secretion was collected from the palpebral conjunctiva of the subjects and then inoculated onto a blood agar plate.After 48h of incubation,the bacteria were examined for the differences and similarities between different ethnics.·RESULTS:There was no significant difference(P 】0.05)of Gram stain characterization,dominant bacteria and number of the bacterial species present in oxrophthalmia patients among Tibetan,Yi and Han nationalities.The bacteria presented in all groups include staphylococcus epidermidis,corynebacterium,micrococcus luteu,int-racellular bacteria sphingomonas,pseudomonas aerug-inosa.The bacteria detected from the two of three ethnic groups were staphylococcus aureus,staphylococcus haemolyticus,escherichia coli,kytococcus sedentarius,streptococcus angina,micrococcus lylae,and staphy-lococcus heads.The incidence rate of bacteria-associated dry eye in Tibetan population was significantly lower than that of Han and Yi population.·CONCLUSION:There is no significant difference in the bacteria flora of palpebral conjunctiva observed among dry eye elder populations of Tibetan,Yi and Han people.All of staphylococcus epidermidis,corynebacterium,micrococcus luteu,intracellular bacteria sphingomonas,pseudomonas aeruginosa,staphylococcus aureus,staphylococcus haemolyticus,escherichia coli,kytococcus sedentarius,streptococcus angina,micrococcus lylae and staphylococcus heads are common bacteria flora of the three nationalities inhibiting in this area.

Distributions of HLA-A and-B alleles and haplotypes in the Yi ethnic minority of Yunnan, China: relationship to other populations

Objective: To investigate the distributions of human leukocyte antigen (HLA)-A and-B alleles and HLA-A-B haplotypes in the Yi ethnic minority of the Yunnan Province, situated in southwestern China. Methods: DNA typing for HLA-A and-B loci was performed using the polymerase chain reaction-sequence-based typing (PCR-SBT) method on 114 randomly selected healthy individuals of the Yi population. The allelic frequencies of HLA-A and-B loci were calculated by direct counting and HLA-A-B haplotypes were estimated using the expectation maximization algorithm. Results: A total of 17 HLA-A and 38 HLA-B alleles were found in the Yi population. The most frequent alleles were A2402 (32.46%), A1101 (26.32%), and A0203 (10.09%) at the HLA-A locus and B4601 (12.28%), B1525 (10.09%), B4001 (8.77%), and B3802 (7.89%) at the HLA-B locus. The predominant HLA-A-B haplotypes were A2402-B1525 (7.86%) and A0203-B3802 (5.64%), followed by A1101-B4001 (4.69%). Phylogenetic analysis indicates that the Yi population in the Honghe, Yunnan Province of China basically belongs to groups of southeastern Asian origin, but shares some characteristics with northeastern Asian groups. Conclusion: The present study may add to the understanding of HLA polymorphism in the Yi ethnic group that was poorly defined previously, and provide useful information for bone marrow transplantation, anthropological research, and forensic sciences as well as for disease-association studies.