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Sex hormone-binding globulin(SHBG) is a surrogate marker of insulin resistance. This study aims at the characteristic and clinical significance of SHBG and testosterone in patients with type 2 diabetes(T2D).
The investigators recorded clinical factors, biochemical criterion such as serum levels of glucose and lipids, HbA1c, SHBG, testosterone, insulin, EPO, C-peptide, glucagon, microalbuminuria, glycemic variation via CGM, carotid plaque, ECG and ultrasonic cardiogram in patients with T2D who visited in the Department of Endocrinology at the Nanjing First Hospital from January 2015 to Aprol 2018. The relationship between levels of SHBG, testosterone and glycemic variation/diabetic complications are analysed.
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| Measure | Description | Time Frame |
|---|---|---|
| sex hormone-binding globulin | the blood sex hormone-binding globulin level of patients | Day 1 |
| Measure | Description | Time Frame |
|---|---|---|
| Testosterone | blood testosterone level of patients | Day 1 |
| EPO | blood erythropoietin level of patients | Day 1 |
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Inclusion Criteria:
● Patients with T2D and the diagnostic criteria of T2D is according to the World Health Organization in 1999.
Exclusion Criteria:
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Patients with type 2 diabetes who visited in the Department of Endocrinology at the Nanjing First Hospital from January 2015 to April 2018 were enrolled in this study.
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30614187 | Derived | Ding B, Sun R, Zhai XF, Lu TT, Cheng L, Li FF, Hu Y, Ma JH. Association of high circulating testosterone with increased glycaemic variability in type 2 diabetes: A cross-sectional study in China. Diabetes Metab Res Rev. 2019 May;35(4):e3126. doi: 10.1002/dmrr.3126. Epub 2019 Jan 23. |
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| HbA1c | the glycosylated hemoglobin level of patients | Day 1 |
| MBG | 24h mean blood glucose tested by CGM | Day 1-4 |
| MAGE | the 24h mean amplitude of glycemic excursion | Day 1-4 |
| SD | the standard deviation of mean glucose | Day 1-4 |