Huanjiu Xi
Biographic Data
| ID | 4304403 |
|---|---|
| NAME | Huanjiu Xi |
| GIVEN NAMES | Huanjiu |
| FAMILY NAME | Xi |
| SIGNATURE | XI H |
| AFFILIATIONS | Wright State University |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 9 |
| WORKS AS AUTHOR | 6 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1989 |
| LATEST PUBLICATION YEAR | 2016 |
| H-INDEX | 2 |
Chest circumference and sitting height among children and adolescents from Lhasa, tibet compared to other high altitude populations
OBJECTIVES: The adaptation of human beings to a high altitude environment during growth has been reported in several populations but is less known for Tibetans. The objective of this study was to investigate similarities and differences of Tibetans in patterns and characteristics of physical growth and development in comparison to other high altitude populations. METHODS: We measured the stature, weight, chest circumference and sitting height of …
A Comparison of Measurement Methods and Sexual Dimorphism for Digit Ratio (2D
The digit ratio (2D:4D) is sexually dimorphic and has been considered an indicator of prenatal sex hormone exposure. Previous studies have shown that males tend to have lower 2D to 4D ratio than females, and this sexual dimorphism has been reported across different ethnic groups and different countries. However, digit ratio data are missing from the Han ethnicity in China. Furthermore, most of the previous studies used direct measurement for digi…
Serum Leptin Concentration and Its Effect on Puberty in Naqu Tibetan Adolescents
This study aimed to clarify the regularity of leptin in Naqu Tibetan adolescents. This study investigated the concentration of fasting serum leptin and clarified its relationship between BMI and other indices. Healthy Naqu Tibetan adolescents aged 12-18 were investigated randomly in the study. They were divided into seven groups (each year as one group, 12 boys and 12 girls in each group); serum concentrations of leptin, estradiol, testosterone (…
Differences between the hand–wrist and the knee in assigned skeletal ages
Skeletal ages were assessed for 4,902 pairs of hand–wrist and knee radiographs of children aged 2–17 years. The FELS method was used to assess the hand–wrist, and the RWT method was used to asses the knee. These methods have the same conceptual and statistical basis. The mean absolute differences, within age‐ and sex‐specific groups, ranged from 0.34 to 0.87 years. The SD of the differences ranged from 0.31 to 0.68 years and, like the means, tend…
Association of adipose tissue distribution with relative skeletal age in boys
The association between relative skeletal age and fat patterning was analyzed by using data from the Fels Longitudinal Study for boys at chronological ages 8 to 17 years. Fat patterning, as indicated by age‐specific means for three skinfold thickness indices adjusted for weight/stature 2 , was peripheral between 8 and 12 years of chronological age but began to increase in a centripetal direction towards a generalized distribution after 13 years. …
Sibling correlations for skeletal age assessments by the Fels method
Sibling correlations are reported for Fels skeletal ages from 2,622 mixed longitudinal hand‐wrist radiographs of 285 boys and 276 girls. Because the observed correlations were irregular across age, they were smoothed by using kernel regression. The brother‐sister correlations were generally lower than those for the other types of silbling pairs, but they were similar to the brother‐brother correlations after 11 years. The sister‐sister correlatio…
A Comparison of Measurement Methods and Sexual Dimorphism for Digit Ratio (2D
The digit ratio (2D:4D) is sexually dimorphic and has been considered an indicator of prenatal sex hormone exposure. Previous studies have shown that males tend to have lower 2D to 4D ratio than females, and this sexual dimorphism has been reported across different ethnic groups and different countries. However, digit ratio data are missing from the Han ethnicity in China. Furthermore, most of the previous studies used direct measurement for digi…
Differences between the hand–wrist and the knee in assigned skeletal ages
Skeletal ages were assessed for 4,902 pairs of hand–wrist and knee radiographs of children aged 2–17 years. The FELS method was used to assess the hand–wrist, and the RWT method was used to asses the knee. These methods have the same conceptual and statistical basis. The mean absolute differences, within age‐ and sex‐specific groups, ranged from 0.34 to 0.87 years. The SD of the differences ranged from 0.31 to 0.68 years and, like the means, tend…
Serum Leptin Concentration and Its Effect on Puberty in Naqu Tibetan Adolescents
This study aimed to clarify the regularity of leptin in Naqu Tibetan adolescents. This study investigated the concentration of fasting serum leptin and clarified its relationship between BMI and other indices. Healthy Naqu Tibetan adolescents aged 12-18 were investigated randomly in the study. They were divided into seven groups (each year as one group, 12 boys and 12 girls in each group); serum concentrations of leptin, estradiol, testosterone (…
Association of adipose tissue distribution with relative skeletal age in boys
The association between relative skeletal age and fat patterning was analyzed by using data from the Fels Longitudinal Study for boys at chronological ages 8 to 17 years. Fat patterning, as indicated by age‐specific means for three skinfold thickness indices adjusted for weight/stature 2 , was peripheral between 8 and 12 years of chronological age but began to increase in a centripetal direction towards a generalized distribution after 13 years. …
Sibling correlations for skeletal age assessments by the Fels method
Sibling correlations are reported for Fels skeletal ages from 2,622 mixed longitudinal hand‐wrist radiographs of 285 boys and 276 girls. Because the observed correlations were irregular across age, they were smoothed by using kernel regression. The brother‐sister correlations were generally lower than those for the other types of silbling pairs, but they were similar to the brother‐brother correlations after 11 years. The sister‐sister correlatio…
Differences between the hand–wrist and the knee in assigned skeletal ages
Skeletal ages were assessed for 4,902 pairs of hand–wrist and knee radiographs of children aged 2–17 years. The FELS method was used to assess the hand–wrist, and the RWT method was used to asses the knee. These methods have the same conceptual and statistical basis. The mean absolute differences, within age‐ and sex‐specific groups, ranged from 0.34 to 0.87 years. The SD of the differences ranged from 0.31 to 0.68 years and, like the means, tend…
Serum Leptin Concentration and Its Effect on Puberty in Naqu Tibetan Adolescents
This study aimed to clarify the regularity of leptin in Naqu Tibetan adolescents. This study investigated the concentration of fasting serum leptin and clarified its relationship between BMI and other indices. Healthy Naqu Tibetan adolescents aged 12-18 were investigated randomly in the study. They were divided into seven groups (each year as one group, 12 boys and 12 girls in each group); serum concentrations of leptin, estradiol, testosterone (…
A Comparison of Measurement Methods and Sexual Dimorphism for Digit Ratio (2D
The digit ratio (2D:4D) is sexually dimorphic and has been considered an indicator of prenatal sex hormone exposure. Previous studies have shown that males tend to have lower 2D to 4D ratio than females, and this sexual dimorphism has been reported across different ethnic groups and different countries. However, digit ratio data are missing from the Han ethnicity in China. Furthermore, most of the previous studies used direct measurement for digi…
Chest circumference and sitting height among children and adolescents from Lhasa, tibet compared to other high altitude populations
OBJECTIVES: The adaptation of human beings to a high altitude environment during growth has been reported in several populations but is less known for Tibetans. The objective of this study was to investigate similarities and differences of Tibetans in patterns and characteristics of physical growth and development in comparison to other high altitude populations. METHODS: We measured the stature, weight, chest circumference and sitting height of …
Medicine (5 works) · Biology (3 works) · Demography (3 works) · Hum (3 works) · Internal Medicine (3 works) · Adipokines, Inflammation, and Metabolic Diseases (2 works) · Anatomy (2 works) · History (2 works) · Mathematics (2 works) · Psychology (2 works)