Furthermore, in patients with diabetes and hypogonadism, TRT can improve sexual activity, as well as quality of life (QoL), insulin resistance, lipid profile, body pressure, and body composition 10,11,12,13. After TRT, total testosterone level was 4.6 ± 3.04 ng/mL at week 4 and 3.93 ± 4.67 ng/mL at week 12. Mean (± standard deviation) total testosterone level was 2.3 ± 0.6 ng/mL at baseline. Shaded area represents values for subjects with hypogonadal testosterone levels (i.e., 2 max) (C) and expression of UQCRB in skeletal muscle (D). We and others have shown that testosterone levels are significantly lower in men with impaired glucose tolerance and T2DM than in normoglycemic controls (16). Three of the trials used a testosterone gel to restore testosterone levels to the normal range, while the fourth combined a testosterone injection with lifestyle changes. Importantly, in 15% of men, testosterone levels declined into the hypogonadal range, indicating the potential to make an erroneous diagnosis of hypogonadism if testosterone is measured after eating.
They might, however have underestimated the benefits of increased sexual activity and desire in the context of the relationship of the couple. Unfortunately, the drop-out rate was 29% which might reflect an issue related to gel, whereas BLAST involved injections administered by the nurse involved in the patient's normal diabetes care. Men with depression, 23% of the group, showed little response by 30 weeks , which is in line with other studies looking at multiple parameters in T2DM where therapeutic responses were strong influenced by depression . There were brisk improvements in sexual desire in both groups, most marked in the severe group and prompt improvement in desire predicted later improvement in IIEF-EF. Improvements reached highest significance at 6 months, suggesting that studies of less than 6 months were of insufficient duration.
Hypogonadism is a global health concern due to its adverse impacts on patients’ ability to perform normal activities and overall quality of life. Estimated pooled mean differences (MDs) and relative risks with 95% confidence intervals were used to measure the effects of TRT (CIs). The databases PubMed, Embase, and Google Scholar were searched for relevant RCTs and observational studies. The results of lifestyle intervention as sole therapy for HG in T2DM are disappointing.
(1) The majority of studies had varying follow-up durations, with some indicating longer times. Although our study generated significant statistical data, its limitations must be acknowledged. The publication of these data can help prevent this bias and promote more balanced evidence.
While TRT may offer benefits, it is important to consider the potential risks, especially for men with diabetes. This can be especially helpful for men with type 2 diabetes, where insulin resistance is a common problem. Insulin sensitivity refers to how well the body’s cells respond to insulin. Some studies have shown that men with low T who receive TRT have better insulin sensitivity.
Low testosterone can also affect memory and concentration, leading to problems with focus. Low testosterone can lead to mood swings, irritability, and even depression. High blood sugar can damage blood vessels and nerves, making it difficult to achieve or maintain an erection (erectile dysfunction, or ED).
Relative risks (RRs) and 95% confidence intervals (CIs) were calculated for binary outcomes. Review Manager 5.4 (Cochrane Collaboration) was utilized to perform the aforementioned meta-analysis. Titles, abstracts, and body text were assessed by two reviewers in a blinded fashion (MK and SK). Gray literature and preprints were discovered by searches on ClinicalTrials.gov (Medline, State of Maryland, USA), Google Scholar (California, USA), and Medrxiv (Florida, USA). In accordance with the Preferred Reporting Items for Systematic Review and Meta-Analysis, the Preferred Reporting Items were used to execute this meta-analysis (PRISMA, Berlin, Germany) . The association between TRT and T2DM in male hypogonadism has only been investigated in a few randomized controlled trials and observational studies, with contradictory results.
Although some studies suggested a potential effect of TRT directly on glucose metabolism and glycemic control 17,18,19, evidence in this regard is still limited. Anyway, a lot of studies confirmed the role of hypogonadism in considering itself as a cardiovascular risk factor . In addition, a recent meta-analysis demonstrated that TRT do not increase the risk of cardiovascular diseases , particularly if the comorbidities are well controlled . You don’t get aromatization to estrogen, and they also have much more negative effects on the lipid profile with very low HDL levels. Given the bidirectional relationship between testosterone and both obesity and insulin resistance, a holistic approach focused on healthy lifestyle behaviors should always be encouraged when managing a hypogonadal male. The decision to prescribe should be guided by severity of testosterone deficiency, burden of symptoms, and presence of comorbid illness.