High-Dose Liraglutide and SGLT2 Inhibitor: A Promising Combination.

Sodium-glucose co-transporter-2 (SGLT2) inhibitors and glucagon-like peptide 1 (GLP-1) agonists are important drugs in our armamentarium of treatment for Type 2 diabetes mellitus (DM). In addition to their glucose-lowering effects, they have effects on weight, other metabolic diseases and perhaps most importantly, a cardioprotective and reno-protective effect. Liraglutide is a long-acting GLP-1 agonist which was originally used at 1.8 mg daily for the treatment of DM. However, high-dose liraglutide-liraglutide 3 mg daily, has been demonstrated to be a safe and effective treatment for obesity, with or without DM. In this manuscript, I present two patients who had unusual responses to combination therapy with high-dose liraglutide and SGLT2 inhibitor-marked and/or rapid improvement in glycemic control and weight loss. Drawing from the observations in both cases, I discuss the complementary mechanisms of actions of both drugs, review the clinical effects of combination therapy and distil them into clinical pearls of practical utility for the physician. Given the "clash of the two pandemics" of obesity and COVID-19 and the burgeoning rates of obesity which loom in the near horizon, this is most timely.

Delayed Onset of Central Hypocortisolism in a Patient Recovering From COVID-19.

OBJECTIVE: The objective of this report is to highlight the possible but little-known association between coronavirus disease 2019 (COVID-19) and delayed onset of central hypocortisolism, which may be of significant clinical importance. METHODS: We describe a patient who developed new-onset central hypocortisolism in the convalescent phase of mild COVID-19, which has not been previously reported. RESULTS: A 47-year-old man with recent COVID-19 upper respiratory tract infection developed new-onset persistent dyspepsia and eosinophilia for which multiple investigations were normal. He was eventually diagnosed with central hypocortisolism, as evidenced by 8 AM cortisol level of 19 nmol/L (normal, 133-537 nmol/L) and adrenocorticotropic hormone of 7.1 ng/mL (normal, 10.0-60.0 ng/mL). He was started on hydrocortisone, which led to resolution of both dyspepsia and eosinophilia. At the same time, an interesting thyroid function trend was observed-an initial increase in both free thyroxine and thyroid stimulating hormone was followed by temporary central hypothyroidism before subsequent spontaneous recovery. On follow-up 3 weeks later, the patient remained hypocortisolemic. CONCLUSION: COVID-19 may be associated with the delayed onset of central hypocortisolism in its convalescent phase. Although various mechanisms are possible, hypothalamic-pituitary activation during systemic illness, followed by a rebound decrease in activity after recovery, is consistent with the clinical course and thyroid function trend in this patient. It is essential that physicians consider endocrinopathies in the differential diagnosis of such cases, given the risk of life-threatening adrenal crises and their possible contribution to persistent symptoms following recovery from COVID-19.

Managing patients with obesity in the post COVID-19 world: Time to sharpen the saw.

The clash of the dual pandemics - COVID-19 and obesity (Chua et al., 2020) [1], threatens to exponentially increase the rates of obesity, which is a risk factor for severe COVID-19 and death (Garg et al., 2020; Peng et al., 2020; Wu et al., 2020; Kass et al., 2020) [2-5]. We need to urgently find solutions to halt this vicious circle. Where do we begin? Our patients - who are often our best teachers. In my clinical practice, I have observed disparate responses among my patients in response to the pandemic. This highlighted the importance of understanding the factors underlying motivation and provided important clues on what clinicians can do to help our patients create a virtuous circle towards positive health outcomes.