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Gut hormones play a key and often overlooked role in weight loss and weight regulation. Changes in weight are determined largely by the balance between energy intake and energy expenditure, but gut hormones can affect both sides of the energy equation.

The range of endothelial interventions for peripheral artery disease (PAD) is proliferating. Today's choices include traditional balloon angioplasty, stents, drug eluting stents and fabric-covered stents. Newer technologies allow clinicians to cut out occlusions, freeze them, scrape them, laser them and kill them.

Surrogate endpoints in clinical trials (ie, hemoglobin [Hb] A1c) on which drug approvals may be based only explain narrow aspects of complex conditions. For this reason, even when using a drug as labeled, there is always a level of uncertainty over outcomes with the drug, said Saul Malozowski, MD, PhD, MPH.

Clinicians should be wary of health claims made for trace elements such as iron or chromium. While there is no doubt that trace elements are needed for health, there is significant doubt about their utility in preventing or curing diabetes and other diseases, said Eliseo Guallar, MD, DrPH, Johns Hopkins Bloomberg School of Public Health, Baltimore. There are many hypotheses about the beneficial effects of trace elements, but little high-quality data, little reliable population data, few useful biomarkers, relatively crude analytical methods and few mechanistic studies.

For the third month in a row the pharmacy posted on the wall in the back of the prescription department the pharmacy's success rate. This month the pharmacy's success rate (91%) broke a new barrier. It was cause for celebration.

An intense glucose-lowering strategy in high-risk patients with type 2 diabetes was associated with an excess of mortality in the ACCORD (Action to Control Cardiovascular Risk in Diabetes) trial, the U.S. counterpart to the ADVANCE (Action in Diabetes and Vascular Disease: Preterax and Diamicron-MR Controlled Evaluation) study.

Several novel classes of agents designed to treat hyperglycemia are under investigation. These agents were the subjects of a symposium here. One such novel class is the sodium glucose co-transporter (SGLT) type 2 inhibitors, which reduce glucose levels by increasing kidney excretion of glucose. The kidney plays an important role in the handling of glucose, said Robert R. Henry, MD, professor of medicine and chief of VA endocrinology and metabolism at the University of California, San Diego. SGLT-2 is expressed almost exclusively in the kidney. About 90% of glucose reabsorption by the kidney is mediated by SGLT-2 under normal circumstances.

Translating weight loss research into clinical programs is not easy. Too many clinical protocols exist in isolation, according to Donald Williamson, PhD, Pennington Biomedical Research Center, Baton Rouge, LA. The key gap is extending methods that contribute to weight loss into programs that maintain weight loss.

Real-time continuous glucose monitoring (CGM) can significantly improve glycemic control, but it will not help all patients. "Real-time CGM will add significantly to glucose management for some people, but not for all," said Irl Hirsch, MD, University of Washington, Seattle. "Human factors make all the difference between success and failure. Some patients will never figure it out. That?s why real-time control is so challenging.

Good glycemic control is not sufficient to relieve painful diabetic neuropathy, necessitating investigation of other modalities to achieve analgesic efficacy. Dan Ziegler, MD, German Diabetes Clinic, German Diabetes Center, and professor of internal medicine, Leibniz Institute at the Heinrich Heine University, Düsseldorf, provided an overview of pharmacologic treatments that have been explored for painful diabetic neuropathy and the success achieved with each.

Islet cell transplants are effective in both the short- and long-term in freeing patients with diabetes from insulin injections and have proven to be safe, said Bernhard J. Hering, MD. The use of embryonic pig pancreatic precursor tissue as the source of islets appears promising and would expand the number of transplant recipients, which is currently limited by number of potential donors.

Take another look at the popular hypothesis that suggests type 2 diabetes has an acute effect on the secretion of GLP-1 and that lower GLP-1 secretion has an acute effect on insulin. It doesn?t work that way, said Michael Nauck, MD, PhD, Diabeteszentrum Bad Lauterberg, Bad Lauterberg, Germany. Decreased GLP-1 secretion is not part of the pathophysiology of type 2 diabetes.

Clinicians and type 2 diabetes patients have a new worry: hepatic steatosis, or nonalcoholic fatty liver disease. Liver disease is a less-obvious problem than kidney disease but may have equally grave consequences.

Endothelial dysfunction is both a marker for and a cause of diabetic complications. Researchers are teasing out pathways that involve oxidative stress and endothelial dysfunction, said Per-Henrik Groop, MD, PhD, Helsinki University Central Hospital, Helsinki, Finland. The challenge is in finding drugs that show the same activity in vivo that they show in cell studies or animal models.

Forget the arguments over fit and fat in the development of diabetes and the resulting complications. Both fitness and fatness can be addressed by the same prescription: physical activity.