We enrolled 23 Japanese men (age: 76.0 ± 8.7) and 17 women (age: 78.3 ± 9.3) in this study. The physical function of even a person getting on a wheelchair could be tested in all subjects. Blood was collected...We enrolled 23 Japanese men (age: 76.0 ± 8.7) and 17 women (age: 78.3 ± 9.3) in this study. The physical function of even a person getting on a wheelchair could be tested in all subjects. Blood was collected by venipuncture and the serum 1, 25-hydroxy vitamin D (1, 25OHD) concentration was measured. The Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment-Japanese version (MoCA-J) was used for the cognitive function test. Physical function was measured objectively using the Timed UP and Go (TUG) and 4-m walking test (4MWS). A significant positive correlation was found between serum 1, 25OHD and MMSE or MoCA-J. It is expected that an elderly person can maintain a mean serum 1, 25OHD level of about 100 pg/mL for preventing early cognitive disorder. In the present study, a significant positive correlation was found between urinary 25-hydroxy vitamin D (25OHD)/creatinine and MMSE or MoCA-J. Our results showed that urinary 25OHD might be a useful biomarker for predicting cognitive disorder. There was a significant negative correlation between serum 1, 25OHD and TUG or 4MWS. These findings suggest that serum 1, 25OHD levels might serve as a useful index to improve cognitive and physical functional impairment.展开更多
Previous studies have demonstrated that male hypogonadism is associated with a low level of vitamin D. However, no reports have investigated the effects of vitamin D on testosterone levels in Korean men. Our aim was t...Previous studies have demonstrated that male hypogonadism is associated with a low level of vitamin D. However, no reports have investigated the effects of vitamin D on testosterone levels in Korean men. Our aim was to investigate whether testosterone levels are associated with serum vitamin D levels and whether seasonal variation exists. This cross-sectional study analyzed serum 25-hydroxyvitamin D [25（OH）D], total testosterone （TT）, and free testosterone （FT） in 652 Korean men over 40 years of age who had undergone a comprehensive medical examination. The average age of the subjects was 56.7± 7.9 years, and the mean serum 25（OH）D, TT and FT levels were 21.23 ± 7.9 ng m1-1, 4.70 ±1.6 ng m1-1, and 8.12± 3.3 pg m1-1, respectively. In the multiple linear regression model, 25（OH）D showed positive association with TT （β =0.137, P〈 0.001） and FT （p =0.103, P= 0.008）. 25（OH） D and FT showed similar seasonal or monthly variation after adjustment for age. A vitamin D deficiency [25（OH）D 〈 20 ng m1-1] was associated with an increased risk of deficiencies of TT （〈2.30 ng ml-1） （odds ratio [OR]： 2.65; 95% confidence interval [CI]. 1.21-5.78, P = 0.014） and FT （〈6.50 pg ml-1） （OR： 1.44; 95% Ch 1.01-2.06 P = 0.048） after adjusting for age, season, body mass index, body composition, chronic disease, smoking, and alcohol use. In conclusion, we demonstrated a positive correlation between 25（OH）D and testosterone, which showed similar seasonal variation in Korean men.展开更多
BACKGROUND Gestational diabetes mellitus(GDM)is a concern due to its rapid increase in incidence in recent years.AIM To investigate the correlation and predictive value of serum pregnancyassociated plasma protein A(PA...BACKGROUND Gestational diabetes mellitus(GDM)is a concern due to its rapid increase in incidence in recent years.AIM To investigate the correlation and predictive value of serum pregnancyassociated plasma protein A(PAPP-A),triglyceride(TG),and 25-hydroxyvitamin D[25-(OH)D]with GDM in early pregnancy.METHODS A total of 99 patients in early pregnancy admitted to Peking University International Hospital from November 2015 to September 2017 were included,and underwent a fasting glucose test and oral glucose tolerance test screening at 24-28 wk of pregnancy.Of these cases with GDM,51 were assigned to group A and the remaining 48 cases without GDM were enrolled in group B.Serum PAPP-A,TG and 25-(OH)D in the two groups were compared and their correlation with blood sugar was analyzed.In addition,their diagnostic value in GDM was determined using receiver operating characteristic(ROC)curve analysis.RESULTS Group A had markedly lower serum PAPP-A and 25-(OH)D levels and a significantly higher serum TG level than group B,with statistical significance(P<0.05).Furthermore,Pearson analysis identified that PAPP-A and 25-(OH)D levels were negatively correlated with fasting blood glucose(FBG)levels(r=-0.605,P<0.001),(r=-0.597,P<0.001),while TG and FBG levels were positively correlated(r=0.628,P<0.001).The sensitivity,specificity,area under the curve(AUC)and optimal cut-off value of serum PAPP-A level in the diagnosis of GDM were 72.55%,82.35%,0.861 and 16.340,respectively,while the sensitivity of TG in diagnosing GDM was 86.27%,the specificity was 66.67%,the AUC was 0.813,with an optimal cut-off value of 1.796.The corresponding sensitivity,specificity,AUC and optimal cut-off value of serum 25-(OH)D were 64.71%,70.59%,0.721 and 23.140,respectively.Moreover,multivariate logistic regression analysis revealed that FBG,vascular endothelial growth factor,Flt-1,serum PAPP-A,TG,and 25-(OH)D were related risk factors leading to GDM in patients.CONCLUSION Serum PAPP-A,TG,and 25-(OH)D levels are all correlated with blood glucose changes in GDM,and are independent factors affecting the occurrence of GDM and have certain value in the diagnosis of GDM.展开更多
Objectives: The aim of this study was to investigate the relationship between the levels of 25-hydroxyvitamin D and the adipokine resistin in Saudi diabetic patients and those at high risk to develop atherosclerotic c...Objectives: The aim of this study was to investigate the relationship between the levels of 25-hydroxyvitamin D and the adipokine resistin in Saudi diabetic patients and those at high risk to develop atherosclerotic cardiovascular diseases. Methodology: One hundred and sixty seven subjects were recruited for the cross-sectional study at King Fahad Medical City, Saudi Arabia. Blood samples were analyzed for biochemical parameters. Serum 25-hydroxyvitamin D and resistin levels were measured for all the participants. Result: Fifty six type-1, 55 type-2 diabetic patients and 56 healthy controls were recruited. Serum 25-hydroxyvitamin D level in the control group was 44.21 ± 41.80 μg/ml compared to 50.67 ± 35.60 μg/ml in the diabetic group (P = 0.427) with no significant different between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.628). Resistin level in the control group was 14.00 ± 7.39μg/ml compared to 20.21 ± 16.94 μg/ml in the diabetic group (P ≤ 0.01), no significant difference between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.817). Resistin in those taking vitamin D supplementation was 21.34 ± 18.27 μg/ml;and in those not taking vitamin D supplementation, it was 17.4 ± 11.19 μg/ml;(P = 0.237). There was significant negative correlation between 25-hydroxyvitamin D and resistin in type-2 diabetes mellitus (P ≤ 0.043) and no significant correlation was found between vitamin 25 (OH) D and resistin level in type-1 diabetes mellitus (P = 0.538). Blood urea and creatinine showed significant positive correlation with vitamin 25 (OH) D in one hand and resistin level on the other hand. Discussion and Conclusions: Several in vitro and in vivo studies have confirmed that the vitamin 25 (OH) D have numerous important functions in the body. The circulating vitamin 25 (OH) D and resistin levels were associated with general inflammation in renal diseases. This study showed significant negative correlation between resistin level and vitamin 25 (OH) D in type 2 diabetes mellitus reflecting their roles in glucose homeostasis. The positive correlation of resistin and vitamin D with urea may reflect their involvement in kidney dysfunction. The level of serum resistin showed slight increase in diabetic patients compared to control group and it was higher in type-2 diabetes mellitus. More efforts are needed to explore the physiological mechanism of vitamin 25 (OH) D and resistin action in metabolic disorders.展开更多
Objective: To investigate the correlation between 25 hydroxyvitamin D3[25(OH)D3] and carotid atherosclerosis of newly diagnosed type 2 diabetes mellitus (T2DM). Methods: A total of 258 patients with newly diagnosed T2...Objective: To investigate the correlation between 25 hydroxyvitamin D3[25(OH)D3] and carotid atherosclerosis of newly diagnosed type 2 diabetes mellitus (T2DM). Methods: A total of 258 patients with newly diagnosed T2DM in this hospital between July 2015 and July 2017 were selected as T2DM group, and 100 subjects with normal glucose metabolism who received physical examination in this hospital during the same period were selected as normal control group. The differences in serum 25(OH)D3 levels, ultrasonic carotid atherosclerosis parameters as well as serum lipid metabolism index and inflammatory adipocytokines contents were compared between the two groups. Pearson test was used to assess the correlation between serum 25(OH)D3 level and carotid atherosclerosis in patients with newly diagnosed T2DM. Results: Serum 25(OH)D3 content of T2DM group was lower than that of normal control group;PWV and CC levels of the ultrasonic left and right carotid arteries were higher than those of normal control group;serum lipid metabolism indexes TC and LDL-C contents were higher than those of normal control group whereas HDL-C content was lower than that of normal control group;serum inflammatory cytokine APN content was lower than that of normal control group whereas CHEM, RSTN and LEP contents were higher than those of normal control group. Pearson test showed that serum 25(OH)D3 level in T2DM patients was directly correlated with the degree of carotid atherosclerosis. Conclusion: Serum 25(OH)D3 level is abnormally low in patients with newly diagnosed T2DM, and the specific decrease is directly correlated with the degree of carotid atherosclerosis and can be used as an early evaluation indicator for carotid artery disease in patients with T2DM.展开更多
文摘We enrolled 23 Japanese men (age: 76.0 ± 8.7) and 17 women (age: 78.3 ± 9.3) in this study. The physical function of even a person getting on a wheelchair could be tested in all subjects. Blood was collected by venipuncture and the serum 1, 25-hydroxy vitamin D (1, 25OHD) concentration was measured. The Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment-Japanese version (MoCA-J) was used for the cognitive function test. Physical function was measured objectively using the Timed UP and Go (TUG) and 4-m walking test (4MWS). A significant positive correlation was found between serum 1, 25OHD and MMSE or MoCA-J. It is expected that an elderly person can maintain a mean serum 1, 25OHD level of about 100 pg/mL for preventing early cognitive disorder. In the present study, a significant positive correlation was found between urinary 25-hydroxy vitamin D (25OHD)/creatinine and MMSE or MoCA-J. Our results showed that urinary 25OHD might be a useful biomarker for predicting cognitive disorder. There was a significant negative correlation between serum 1, 25OHD and TUG or 4MWS. These findings suggest that serum 1, 25OHD levels might serve as a useful index to improve cognitive and physical functional impairment.
文摘Previous studies have demonstrated that male hypogonadism is associated with a low level of vitamin D. However, no reports have investigated the effects of vitamin D on testosterone levels in Korean men. Our aim was to investigate whether testosterone levels are associated with serum vitamin D levels and whether seasonal variation exists. This cross-sectional study analyzed serum 25-hydroxyvitamin D [25（OH）D], total testosterone （TT）, and free testosterone （FT） in 652 Korean men over 40 years of age who had undergone a comprehensive medical examination. The average age of the subjects was 56.7± 7.9 years, and the mean serum 25（OH）D, TT and FT levels were 21.23 ± 7.9 ng m1-1, 4.70 ±1.6 ng m1-1, and 8.12± 3.3 pg m1-1, respectively. In the multiple linear regression model, 25（OH）D showed positive association with TT （β =0.137, P〈 0.001） and FT （p =0.103, P= 0.008）. 25（OH） D and FT showed similar seasonal or monthly variation after adjustment for age. A vitamin D deficiency [25（OH）D 〈 20 ng m1-1] was associated with an increased risk of deficiencies of TT （〈2.30 ng ml-1） （odds ratio [OR]： 2.65; 95% confidence interval [CI]. 1.21-5.78, P = 0.014） and FT （〈6.50 pg ml-1） （OR： 1.44; 95% Ch 1.01-2.06 P = 0.048） after adjusting for age, season, body mass index, body composition, chronic disease, smoking, and alcohol use. In conclusion, we demonstrated a positive correlation between 25（OH）D and testosterone, which showed similar seasonal variation in Korean men.
文摘BACKGROUND Gestational diabetes mellitus(GDM)is a concern due to its rapid increase in incidence in recent years.AIM To investigate the correlation and predictive value of serum pregnancyassociated plasma protein A(PAPP-A),triglyceride(TG),and 25-hydroxyvitamin D[25-(OH)D]with GDM in early pregnancy.METHODS A total of 99 patients in early pregnancy admitted to Peking University International Hospital from November 2015 to September 2017 were included,and underwent a fasting glucose test and oral glucose tolerance test screening at 24-28 wk of pregnancy.Of these cases with GDM,51 were assigned to group A and the remaining 48 cases without GDM were enrolled in group B.Serum PAPP-A,TG and 25-(OH)D in the two groups were compared and their correlation with blood sugar was analyzed.In addition,their diagnostic value in GDM was determined using receiver operating characteristic(ROC)curve analysis.RESULTS Group A had markedly lower serum PAPP-A and 25-(OH)D levels and a significantly higher serum TG level than group B,with statistical significance(P<0.05).Furthermore,Pearson analysis identified that PAPP-A and 25-(OH)D levels were negatively correlated with fasting blood glucose(FBG)levels(r=-0.605,P<0.001),(r=-0.597,P<0.001),while TG and FBG levels were positively correlated(r=0.628,P<0.001).The sensitivity,specificity,area under the curve(AUC)and optimal cut-off value of serum PAPP-A level in the diagnosis of GDM were 72.55%,82.35%,0.861 and 16.340,respectively,while the sensitivity of TG in diagnosing GDM was 86.27%,the specificity was 66.67%,the AUC was 0.813,with an optimal cut-off value of 1.796.The corresponding sensitivity,specificity,AUC and optimal cut-off value of serum 25-(OH)D were 64.71%,70.59%,0.721 and 23.140,respectively.Moreover,multivariate logistic regression analysis revealed that FBG,vascular endothelial growth factor,Flt-1,serum PAPP-A,TG,and 25-(OH)D were related risk factors leading to GDM in patients.CONCLUSION Serum PAPP-A,TG,and 25-(OH)D levels are all correlated with blood glucose changes in GDM,and are independent factors affecting the occurrence of GDM and have certain value in the diagnosis of GDM.
文摘Objectives: The aim of this study was to investigate the relationship between the levels of 25-hydroxyvitamin D and the adipokine resistin in Saudi diabetic patients and those at high risk to develop atherosclerotic cardiovascular diseases. Methodology: One hundred and sixty seven subjects were recruited for the cross-sectional study at King Fahad Medical City, Saudi Arabia. Blood samples were analyzed for biochemical parameters. Serum 25-hydroxyvitamin D and resistin levels were measured for all the participants. Result: Fifty six type-1, 55 type-2 diabetic patients and 56 healthy controls were recruited. Serum 25-hydroxyvitamin D level in the control group was 44.21 ± 41.80 μg/ml compared to 50.67 ± 35.60 μg/ml in the diabetic group (P = 0.427) with no significant different between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.628). Resistin level in the control group was 14.00 ± 7.39μg/ml compared to 20.21 ± 16.94 μg/ml in the diabetic group (P ≤ 0.01), no significant difference between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.817). Resistin in those taking vitamin D supplementation was 21.34 ± 18.27 μg/ml;and in those not taking vitamin D supplementation, it was 17.4 ± 11.19 μg/ml;(P = 0.237). There was significant negative correlation between 25-hydroxyvitamin D and resistin in type-2 diabetes mellitus (P ≤ 0.043) and no significant correlation was found between vitamin 25 (OH) D and resistin level in type-1 diabetes mellitus (P = 0.538). Blood urea and creatinine showed significant positive correlation with vitamin 25 (OH) D in one hand and resistin level on the other hand. Discussion and Conclusions: Several in vitro and in vivo studies have confirmed that the vitamin 25 (OH) D have numerous important functions in the body. The circulating vitamin 25 (OH) D and resistin levels were associated with general inflammation in renal diseases. This study showed significant negative correlation between resistin level and vitamin 25 (OH) D in type 2 diabetes mellitus reflecting their roles in glucose homeostasis. The positive correlation of resistin and vitamin D with urea may reflect their involvement in kidney dysfunction. The level of serum resistin showed slight increase in diabetic patients compared to control group and it was higher in type-2 diabetes mellitus. More efforts are needed to explore the physiological mechanism of vitamin 25 (OH) D and resistin action in metabolic disorders.
文摘Objective: To investigate the correlation between 25 hydroxyvitamin D3[25(OH)D3] and carotid atherosclerosis of newly diagnosed type 2 diabetes mellitus (T2DM). Methods: A total of 258 patients with newly diagnosed T2DM in this hospital between July 2015 and July 2017 were selected as T2DM group, and 100 subjects with normal glucose metabolism who received physical examination in this hospital during the same period were selected as normal control group. The differences in serum 25(OH)D3 levels, ultrasonic carotid atherosclerosis parameters as well as serum lipid metabolism index and inflammatory adipocytokines contents were compared between the two groups. Pearson test was used to assess the correlation between serum 25(OH)D3 level and carotid atherosclerosis in patients with newly diagnosed T2DM. Results: Serum 25(OH)D3 content of T2DM group was lower than that of normal control group;PWV and CC levels of the ultrasonic left and right carotid arteries were higher than those of normal control group;serum lipid metabolism indexes TC and LDL-C contents were higher than those of normal control group whereas HDL-C content was lower than that of normal control group;serum inflammatory cytokine APN content was lower than that of normal control group whereas CHEM, RSTN and LEP contents were higher than those of normal control group. Pearson test showed that serum 25(OH)D3 level in T2DM patients was directly correlated with the degree of carotid atherosclerosis. Conclusion: Serum 25(OH)D3 level is abnormally low in patients with newly diagnosed T2DM, and the specific decrease is directly correlated with the degree of carotid atherosclerosis and can be used as an early evaluation indicator for carotid artery disease in patients with T2DM.
