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Objective To explore the influence of regional differences on the body composition of the Miao nationality. Methods The bioelectrical impedance method was used to measure 17 body composition indexes of 357 adults of Miao Nationality in Guizhou (162 males and 195 females) and 471 adults of Miao Nationality in Western Hu'nan (210 males and 261 females). The correlation analysis between body composition and age, One-Way ANOVA and principal component analysis were carried out. Results The visceral fat grade and trunk fat percentage of Miao men in Guizhou and Miao in Western Hu'nan were positively correlated with age, and total muscle mass and trunk muscle mass were negatively correlated with age. The visceral fat grade and trunk fat rate of Miao women in the two regions were positively correlated with age, and the presumed bone mass and trunk muscle mass were negatively correlated with age. The index values of weight, muscle mass, estimated bone mass, water content, visceral fat grade, limb and trunk muscle mass in Guizhou Miao and Miao men in Western Hu'nan were all larger than women, and the body fat rate, limb and trunk fat mass were all smaller than women. The body fat percentages, limbs and trunk fat percentages of Guizhou Miao men and women were similar to those of Xiangxi Miao, and the muscle mass, limbs and trunk muscle mass were less than that of Xiangxi Miao. Conclusion There are obvious regional differences in muscle mass between the Miao nationality in Guizhou and the Miao nationality in Western Hu'nan.
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@#AIM: To investigate the prevalence and risk factors of pterygium in Zhuang and Miao nationality adults aged 40 and over in Wenshan prefecture, Yunnan Province.METHODS: An epidemiological survey of Zhuang and Miao nationality in Yunnan Province was conducted by using the portable slit-lamp and Keratograph-D eye surface analyzer. The Logistic regression analysis was operated to determine the impact of gender, age, occupation, outdoor activities and nationality on pterygium.RESULTS: Totally 1 239 participants were included from March to November 2019, 437 people had pterygium in one or both eyes, and the total prevalence was 35.27%. Pterygium of both eyes accounted for 59.27% while pterygium of single eye accounted for 40.73%. The prevalence of pterygium was 34.84%(224 people)in Zhuang population and 35.74%(213 people)in Miao population, there was no significant difference between the two groups(<i>P</i>=0.740). According to the result of Logistic regression analysis, opening of meibomian is the influencing factor of pterygium(<i>P</i>=0.019), with <i>OR</i>=1.348. Gender, age, education, outdoor activities, hypertension and eating habits were not the influencing factors of pterygium. Logistic regression was used to analyze the invasion degree of pterygium. The results showed that the height of lacrimal river was the influencing factor of pterygium(<i>P</i>=0.048). The lower the lacrimal river height, the greater the degree of invasion.CONCLUSION: The prevalence of pterygium in Zhuang and Miao nationality aged 40 and over in Wenshan prefecture, Yunnan Province is high, with no significant difference between the two nationalities. The function of meibomian gland, the quality and quantity of tears are related to pterygium.
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Objective To investigate the accuracy of body mass index (BMI) as the evaluation standard for obesity in Miao adults in Guangxi, to find out the BMI cutoff value suitable for the evaluation standard of adult obesity, and to provide an accurate and reliable reference value for the prevention and treatment of obesity in Miao nationality adults. Methods Using a cross-sectional design, residents aged 18 years or older in the Miao villages in Rongshui Miao Autonomous County, Guangxi, were selected as the research subjects, and their body composition was measured. The percent body fat (PBF) standard was used as the “gold standard” for obesity, and the BMI standard for obesity in Chinese adults was used as the positive screening standard. The accuracy of the BMI standard was evaluated, and the ROC curve analysis was used to determine the optimal BMI cutoff value for obesity in Miao adults. Results The detection rate of obesity of Miao adults in Guangxi by BMI method was lower than that by PBF method (10.3% vs 19.0%, χ2=426.62, P“gold standard”, BMI had a good diagnostic performance for obesity in Miao adults (AUC=0.959, P2 and 25.55 kg/m2 for men and women, respectively. Conclusion BMI is of great value for the diagnosis of obesity in Miao adults, but it should not be used as an exclusion criterion for obesity. Especially in the case of a small sample size, the risk of misclassification bias is relatively high.
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Objective To study the frequency of 9 bp sequence deletion of mithochondrial DNA in three ethnic nationalities of Guizhou Province .Methods A total of 183 male blood samples were randomly extracted from Miao nationality (69 cases) in Leishan County ,Shui nationality (44 cases) and Buyi nationality (70 cases) in Libo County .Polymerase chain reaction(PCR) and di-rect sequencing were used to detect the mithochondrial DNA 9 bp sequence deletion .Results The standard type ,deleting type and 3 type were found in the samples of 3 ethnic nationalities in Guizhou Province ,the highest deletion frequency was Shui nationality (40 .91% ) in Libo County ,1 cases of 3 type was detected in Miao nationality of Leishan County ,and the mtDNA 9 bp deletion fre-quency had no statistical difference among 3 ethnic nationalities(P>0 .05) .Conclusion The frequency of mtDNA 9 bp deletion is different among three native minorities ,the genetic variation in Shui nationality is larger ,compared with Miao nationality genetic re-lationship ,Shui nationality has a relatively closer affinity with Buyi nationality .
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This study was aimed to prepare the spraying agent of prescriptions of Miao nationality herb and investigate the effect of Miao nationality herbs spray for serum SOD, MDA, and expression of Fas and Caspase-3 mRNA in lung tissues of silica-treated rats. The healthy SD rats were divided into 5 groups. Silica dust suspension was used in the model establishment of 4 groups. After the model was successfully established, 3 groups were randomly selected and given glucocorticoids atomization inhalation, Miao nationality herbs spray, Miao nationality herbs spray combined with intragastric administration of herbal medicine, respectively. After 40-day treatment, water-solubletetrazolium salt (WST-1) was used in the detection of serum superoxide dismutase (SOD). Thiobarbituric acid (TBA) was used in the detection of malondialdehyde (MDA). The mRNA expression variance of the Fas and Caspase-3 were detected by RT-PCR. The results showed that compared with the silica dust suspension group, the SOD activity of serum in the Miao nationality herbs spray group was significantly increased (P< 0.05). MDA content and the mRNA of Fas and Caspase-3 were significantly lower in the Miao nationality herbs spray group (P< 0.05). It was concluded that Miao nationality herbs spray group was able to increase the SOD activity of serum, decrease MDA content, and obviously decrease the expression of Fas and Caspase-3 of lung tissues among silica dust suspension rats.
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Objective To explore the arterial function of the Miao nationality people who live in natural circumstance.Methods 244 Miaos were mcmited in our studv.Right blood pressure and biochemistry examination were measured.PWV and CAVI were measured using validated automatic devices and used as indexes of arterial stiffness.Ultrasonic indexes such as carotid diameter,carotid plaque,IMT、flow-mediated dilation(FMD) were measured as well.Results Body mass index,waist-to-hip ratio,heart rates,blood lipid level and glucose had no significant difierence between male and female groups.Arterial function indexes such as C-F PWV(9.50±2.14 vs.8.81±1.69,t=2.074,P=0.006),C-R PWV(11.39±1.74 vs.10.54±1.77,t=3.506,P<0.001),R-CAVI(8.25±1.35 vs.7.41±1.20,t=4.768,P<0.001),L-CAVI(8.21±1.30 vs.7.41±1.15,t=4.616,P<0.001),R-IMT(0.67±O.12 vs.0.63±0.13,t=2.503,P=0.012) and L-IMT(0.67±0.11 vs.0.63±0.14,t=2.337,P=O.018) had significant difference between the two groups.Conclusions The medical condition of the Mians needs to be impmved.It is useful to diagnose patients and hish risk people by systemic arterial function examination.
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Axiong Powder is a powdered drug applied by Miao people for the treatment and prevention of URI ( upper respiratory infection) , hemorrhoid, carbuncles and boils. Preliminary analysis revealed it to contain some ten kinds of herbs. By clinical analysis, it was shown that the Powder yields rather good therapeutic results on cold, tonsillitis, pyogenic tonsillitis, contusion, sprain. Bacteria strainisolated clinically can be inhibited by Axiong water decoction.