Nelson Vergel
Founder, ExcelMale.com
Higher Testosterone was Associated with Lower Ferritin
The Association between the Levels of Serum Ferritin and Sex Hormones in a Large Scale of Chinese Male Population
Liu, Zhenfang ; Ye, Fanghui ; Zhang, Haiying ; Gao, Yong ; Tan, Aihua ; Zhang, Shijun ; Xiao, Qiang ; Zhang, Bing ; Huang, Lulu ; Ye, Bingbing ; Qin, Xue ; Wu, Chunlei ; Lu, Zheng ; Zhang, Youjie ; Liao, Ming ; Yang, Xiaobo ; Mo, Zengnan; Hills, Robert K
PloS one, 2013, Vol.8 (10), p.e75908
The ferritin is an important participant of iron-storage but its regulation and related factors were not well defined. The present objective was to explore the potential association between serum ferritin levels and sex hormones. 1999 Chinese men in the Fangchenggang Area Male Health and Examination Survey (FAMHES) were recruited in this cross-sectional study. Levels of serum ferritin, total testosterone (free testosterone was calculated from the total one), estradiol and sex hormone-binding protein were detected in venous blood samples. The effects of age, BMI, smoking as well as alcohol consumption were analyzed on ferritin levels, respectively, and then the Pearson's correlation analysis was used to evaluate the association between ferritin levels and sex hormones adjusting for the above factors. The age, BMI and alcohol consumption significantly affected serum ferritin levels, but there was no significant difference between smokers and nonsmokers. Ferritin levels were significantly and negatively associated with total testosterone (R = -0.205, P< 0.001), sex hormone-binding protein (R = -0.161, P<0.001) and free testosterone (R = -0.097, P<0.001). After age and alcohol consumption were adjusted, the above associations were still significant (R = -0.200, -0.181 and -0.083, respectively, all P<0.001). However, there was only borderline negative association between ferritin levels and estradiol (adjusted R = -0.039, P = 0.083). The large scale of epidemic results showed the significantly negative associations between serum ferritin levels and sex hormones, which may provide more clues to explore the potential regulation and biological mechanism of ferritin.
Serum Ferritin Is Inversely Correlated with Testosterone in Boys and Young Male Adolescents: A Cross-Sectional Study in Taiwan
Chao, Kuo-Ching ; Chang, Chun-Chao ; Chiou, Hung-Yi ; Chang, Jung-Su; Szecsi, Pal Bela
PloS one, 2015, Vol.10 (12), p.e0144238
The transition from childhood to teenaged years is associated with increased testosterone and a decreased iron status. It is not clear whether higher testosterone levels cause the decreased iron status, and to what extent, obesity-related inflammation influences the iron-testosterone relationship. The aim of the present study was to examine relationships of testosterone, iron status, and anti-/proinflammatory cytokines in relation to nutritional status in boys and young adolescent Taiwanese males. In total, 137 boys aged 7~13 yr were included. Parameters for obesity, the iron status, testosterone, and inflammatory markers were evaluated. Overweight and obese (ow/obese) boys had higher mean serum testosterone, interleukin (IL)-1β, and nitric oxide (NO) levels compared to their normal-weight counterparts (all p<0.05). Mean serum ferritin was slightly higher in ow/obese boys compared to normal-weight boys, but this did not reach statistical significance. A multiple linear regression showed that serum ferritin (β = -0.7470, p = 0.003) was inversely correlated with testosterone, while serum IL-10 (β = 0.3475, p = 0.009) was positively associated with testosterone after adjusting for covariates. When normal-weight boys were separately assessed from ow/obesity boys, the association between testosterone and serum ferritin became stronger (β = -0.9628, p<0.0001), but the association between testosterone and IL-10 became non-significant (β = 0.1140, p = 0.4065) after adjusting for covariates. In ow/obese boys, only IL-10 was weakly associated with serum testosterone (β = 0.6444, p = 0.051) after adjusting for age. Testosterone and serum ferritin are intrinsically interrelated but this relationship is weaker in ow/obese boys after adjusting for age.
The Association between the Levels of Serum Ferritin and Sex Hormones in a Large Scale of Chinese Male Population
Liu, Zhenfang ; Ye, Fanghui ; Zhang, Haiying ; Gao, Yong ; Tan, Aihua ; Zhang, Shijun ; Xiao, Qiang ; Zhang, Bing ; Huang, Lulu ; Ye, Bingbing ; Qin, Xue ; Wu, Chunlei ; Lu, Zheng ; Zhang, Youjie ; Liao, Ming ; Yang, Xiaobo ; Mo, Zengnan; Hills, Robert K
PloS one, 2013, Vol.8 (10), p.e75908
The ferritin is an important participant of iron-storage but its regulation and related factors were not well defined. The present objective was to explore the potential association between serum ferritin levels and sex hormones. 1999 Chinese men in the Fangchenggang Area Male Health and Examination Survey (FAMHES) were recruited in this cross-sectional study. Levels of serum ferritin, total testosterone (free testosterone was calculated from the total one), estradiol and sex hormone-binding protein were detected in venous blood samples. The effects of age, BMI, smoking as well as alcohol consumption were analyzed on ferritin levels, respectively, and then the Pearson's correlation analysis was used to evaluate the association between ferritin levels and sex hormones adjusting for the above factors. The age, BMI and alcohol consumption significantly affected serum ferritin levels, but there was no significant difference between smokers and nonsmokers. Ferritin levels were significantly and negatively associated with total testosterone (R = -0.205, P< 0.001), sex hormone-binding protein (R = -0.161, P<0.001) and free testosterone (R = -0.097, P<0.001). After age and alcohol consumption were adjusted, the above associations were still significant (R = -0.200, -0.181 and -0.083, respectively, all P<0.001). However, there was only borderline negative association between ferritin levels and estradiol (adjusted R = -0.039, P = 0.083). The large scale of epidemic results showed the significantly negative associations between serum ferritin levels and sex hormones, which may provide more clues to explore the potential regulation and biological mechanism of ferritin.
Serum Ferritin Is Inversely Correlated with Testosterone in Boys and Young Male Adolescents: A Cross-Sectional Study in Taiwan
Chao, Kuo-Ching ; Chang, Chun-Chao ; Chiou, Hung-Yi ; Chang, Jung-Su; Szecsi, Pal Bela
PloS one, 2015, Vol.10 (12), p.e0144238
The transition from childhood to teenaged years is associated with increased testosterone and a decreased iron status. It is not clear whether higher testosterone levels cause the decreased iron status, and to what extent, obesity-related inflammation influences the iron-testosterone relationship. The aim of the present study was to examine relationships of testosterone, iron status, and anti-/proinflammatory cytokines in relation to nutritional status in boys and young adolescent Taiwanese males. In total, 137 boys aged 7~13 yr were included. Parameters for obesity, the iron status, testosterone, and inflammatory markers were evaluated. Overweight and obese (ow/obese) boys had higher mean serum testosterone, interleukin (IL)-1β, and nitric oxide (NO) levels compared to their normal-weight counterparts (all p<0.05). Mean serum ferritin was slightly higher in ow/obese boys compared to normal-weight boys, but this did not reach statistical significance. A multiple linear regression showed that serum ferritin (β = -0.7470, p = 0.003) was inversely correlated with testosterone, while serum IL-10 (β = 0.3475, p = 0.009) was positively associated with testosterone after adjusting for covariates. When normal-weight boys were separately assessed from ow/obesity boys, the association between testosterone and serum ferritin became stronger (β = -0.9628, p<0.0001), but the association between testosterone and IL-10 became non-significant (β = 0.1140, p = 0.4065) after adjusting for covariates. In ow/obese boys, only IL-10 was weakly associated with serum testosterone (β = 0.6444, p = 0.051) after adjusting for age. Testosterone and serum ferritin are intrinsically interrelated but this relationship is weaker in ow/obese boys after adjusting for age.
