Mendelian randomization suggested only minor, if any, causal effects of SHBG on lipid and metabolite measures and insulin resistance(n = 10,895).Causal effect estimates on type 2 diabetes for 41,439 cases and 103,870 controls indicated a causative protective role of SHBG (OR = 0.83 per 1-SD, 95% CI: 0.76, 0.91); however, effects were considerably weaker than observed in meta-analysis of prospective studies [hazard ratio (HR) = 0.47 per 1-SD, 95% CI: 0.41, 0.53].
Menstrual dysfunction is common in girls with recently diagnosed type 2 diabetes and associated with alterations in sex steroids, SHBG, and AST but not with alteration in insulin sensitivity or β-cell function and did not improve with 2 years of antihyperglycemic treatment.
Multivariate linear regression models were used to assess the impact of race (white, black, and other) and family history of type 2 diabetes on body mass index, waist circumference, and waist to hip ratio; glycemic measures (glucose and insulin levels obtained during a standard 75-g oral glucose tolerance test, fasting glucose to insulin ratio, and homeostasis model assessment model of insulin resistance derived from fasting levels of glucose and insulin), hemoglobin A(1c), and SHBG, and dehydroepiandrosterone sulfate levels.
Our findings support a SBP treatment target of 140 mmHg and suspect no risk reduction attenuation on CVD for lower SBP targets (<120 or <130 mmHg) for most patients with uncomplicated T2DM.
Polymorphisms of the <i>SHBG</i> gene linked to low SHBG protein levels also strongly predicted increased risk of type 2 diabetes, thus raising the possibility that SHBG may play a role in the pathogenesis of insulin resistance and diabetes.
Possible mechanisms by which high circulating SHBG prevents the development of type 2 diabetes involve regulation of fasting glycemia but not alteration of insulin secretory function.
Significant additive interactions with obesity or central obesity were detected for total testosterone (RERI=2.75, 95% CI=0.92,4.59), SHBG (RERI=5.71, 95% CI=0.77,10.64), and FEI (RERI=-9.96, 95% CI=-19.18,-0.74) with regard to IR, beta-cell dysfunction, and T2D.
Single-nucleotide polymorphism, rs1799941 in the Sex Hormone-Binding Globulin (SHBG) gene, related to both serum testosterone and SHBG levels and the risk of myocardial infarction, type 2 diabetes, cancer and mortality in men: the Tromsø Study.
Single-nucleotide polymorphisms in the SHBG gene influence circulating SHBG levels in American patients with PCOS and may predict the development of type 2 diabetes.
The available evidence supports treatment in people with type 2 diabetes and SBP more than 140 mmHg, using any of the major antihypertensive drug classes.
The correlation between SHBG and insulin resistance that is evident in a number of cross-sectional studies is in keeping with the suggestion that the association between SHBG and incidence of type 2 DM is explained by insulin resistance.
The HR value was higher on the LTM versus the ATM independent of group and treadmill stage (P=0.002) and SBP was higher in the T2D group versus no T2D independent of treadmill mode and stage (P=0.01).
There is no consensus as to the optimal SBP target for patients with T2DM, though data suggest a benefit to targeting SBP < 130 mmHg in patients with less-intensive glucose control.
There was little evidence for an association of genetic liability to type 2 diabetes, parity, or circulating levels of 25-hydroxyvitamin D and sex hormone binding globulin with ovarian cancer or its subtypes.
Therefore, low SHBG could be a useful tool for identifying presymptomatic individuals with diabetes mellitus type 2 including those with androgen disorders.
These latter two variants are associated with T2D (risk haplotype GG; odds ratio 2.67; 95% CI 2.32-3.08; P = 2.43 × 10<sup>-4</sup>) in genome-wide association data (N = 402), but are more strongly associated with quantitative traits (DBP, SBP, ACR, eGFR) for hypertension and renal function in non-diabetic than diabetic subgroups.
This effect was very similar to that expected (OR 0.92, 95% CI: 0.88, 0.96), given the SHBG-SNP versus SHBG levels association (SHBG levels are 0.2 standard deviations higher per copy of the A allele) and the SHBG levels versus type 2 diabetes association (SHBG levels are 0.23 standard deviations lower in type 2 diabetic patients compared to controls).