Over time, a prolonged exposure to high blood sugar can damage the nerves throughout the body — a condition called diabetic neuropathy. Some people may not have any symptoms of the damage, while others may notice numbness, tingling, or pain in the extremities. “At the beginning, [diabetic neuropathy] usually starts in the feet and then it progresses upward,” says Dr. Ovalle. Although most common in people who have had type 2 diabetes for 25 years or more, it can occur in people who have prediabetes as well. In some studies, almost 50 percent of unexplained peripheral neuropathy [in the extremities], whether painful or otherwise, turns out to be caused by prediabetes or diabetes, says Dr. Einhorn.
With Type 2 diabetes, your body doesn’t use insulin well and is unable to keep blood sugar at normal levels. Most people with diabetes—9 in 10—have type 2 diabetes. It develops over many years and is usually diagnosed in adults (though increasingly in children, teens, and young adults). You may not notice any symptoms, so it’s important to get your blood sugar tested if you’re at risk. Type 2 diabetes can be prevented or delayed with healthy lifestyle changes, such as losing weight if you’re overweight, healthy eating, and getting regular physical activity.
^ Piwernetz K, Home PD, Snorgaard O, Antsiferov M, Staehr-Johansen K, Krans M (May 1993). "Monitoring the targets of the St Vincent Declaration and the implementation of quality management in diabetes care: the DIABCARE initiative. The DIABCARE Monitoring Group of the St Vincent Declaration Steering Committee". Diabetic Medicine. 10 (4): 371–7. doi:10.1111/j.1464-5491.1993.tb00083.x. PMID 8508624.
Insulin — the hormone that allows your body to regulate sugar in the blood — is made in your pancreas. Essentially, insulin resistance is a state in which the body’s cells do not use insulin efficiently. As a result, it takes more insulin than normal to transport blood sugar (glucose) into cells, to be used immediately for fuel or stored for later use. A drop in efficiency in getting glucose to cells creates a problem for cell function; glucose is normally the body’s quickest and most readily available source of energy.
Today, 425 million adults live with diabetes, and that number is expected to grow to 629 million by 2045, with the greatest number between the ages of 40 to 59 years old. The global prevalence of diabetes has risen from 4.7 percent in 1980 to 8.5 percent in 2014, with the proportion of type 2 diabetes increasing around the world. On top of those numbers, another whopping 352 million people are at risk of developing type 2 diabetes. According to the 2017 Economic Cost of Diabetes survey sponsored by the American Diabetes Association, the total cost of diabetes was estimated to be $327 billion, a 26 percent increase since 2012. About three-quarters of those costs are associated with direct medical expenditures. Patients with diabetes are expected to pay an average of $9,600 in additional medical costs annually. A diabetes cure could cut out a nice chunk of fat out of those costs, potentially worth $245 billion from the 30 million diabetic Americans alone.
This medical-grade polyester is currently used in teeth guards that kids and adults wear at night, in tiny tubes used to guide the growth of damaged nerve fibers and in surgical sutures. Researchers are also looking at PCL’s potential as an implant to deliver medications directly to the eyes and to tumors and as a scaffold for growing human tissue. PCL may be an ideal package for islet cells, the studies note, because it can be used to create thin, flexible membranes with pores that let in glucose and nutrients, let out insulin and exclude bigger immune-system molecules.
A 2018 study suggested that three types should be abandoned as too simplistic. It classified diabetes into five subgroups, with what is typically described as type 1 and autoimmune late-onset diabetes categorized as one group, whereas type 2 encompasses four categories. This is hoped to improve diabetes treatment by tailoring it more specifically to the subgroups.
Joyce Lashof, then the dean of Berkeley’s School of Public Health, remembers that wellness was initially a tough sell at the school. Not much was known on campus about the earlier work of Travis and his fellow wellness advocates, but Lashof’s colleagues associated the term wellness with the “flakiness” of Mill Valley and surrounding Marin County. The NBC newsman Edwin Newman had televised an exposé of Marin County’s hedonistic lifestyle, which notoriously opened with a woman getting a peacock-feather massage from two nude men. The Berkeley Wellness Letter, however, managed to avoid such unseemly associations by publishing serious, evidence-based articles on health promotion, while debunking many of the holistic health fads of the day.
Health ProMed Nursing Director Angel Rodriguez, Ruben Bras of the Puerto Rico Primary Care Association and other ProMed staffers quickly load Humulin R insulin into cold storage at the ProMed San Juan clinic. Humulin R is used to stabilize a patient’s blood sugar. The medicines from Direct Relief were critical after Hurricane Maria, with many patients battling stress and limited access to nutritious food. (Lara Cooper/Direct Relief)
One of the biggest hits in type 2 diabetes treatment is glucagon-like peptide (GLP)-1 receptor agonists, which induce insulin production in beta-pancreatic cells while suppressing the secretion of glucagon. All big pharma have GLP-1 drugs on the market or their pipelines, including Sanofi, Eli Lilly, Roche, AstraZeneca and Boehringer Ingelheim. But Novo Nordisk is going a step further with the first oral version of a GLP-1 drug, which is now close to the market.
There are some interesting developments in blood glucose monitoring including continuous glucose sensors. The new continuous glucose sensor systems involve an implantable cannula placed just under the skin in the abdomen or in the arm. This cannula allows for frequent sampling of blood glucose levels. Attached to this is a transmitter that sends the data to a pager-like device. This device has a visual screen that allows the wearer to see, not only the current glucose reading, but also the graphic trends. In some devices, the rate of change of blood sugar is also shown. There are alarms for low and high sugar levels. Certain models will alarm if the rate of change indicates the wearer is at risk for dropping or rising blood glucose too rapidly. One version is specifically designed to interface with their insulin pumps. In most cases the patient still must manually approve any insulin dose (the pump cannot blindly respond to the glucose information it receives, it can only give a calculated suggestion as to whether the wearer should give insulin, and if so, how much). However, in 2013 the US FDA approved the first artificial pancreas type device, meaning an implanted sensor and pump combination that stops insulin delivery when glucose levels reach a certain low point. All of these devices need to be correlated to fingersticks measurements for a few hours before they can function independently. The devices can then provide readings for 3 to 5 days.
Lab studies show that Encellin’s “ultra thin-film implantable cell delivery system” keeps islet cells alive and functioning. In a 2015 study in the journal ACS Nano, Dr. Nyitray and others found that cells in the packaging survived for 90 days in lab animals. New blood vessels grew around the transplants and the cells produced insulin in response to rising glucose levels. In a 2016 study from Dr. Desai’s lab, also published in ACS Nano, human islet cells packaged in the tiny film envelopes survived for six months in mice—and the cells made and released insulin in response to rising blood glucose levels.
Insulin serves as a “key” to open your cells, to allow the glucose to enter -- and allow you to use the glucose for energy. Without insulin, there is no “key.” So, the sugar stays -- and builds up-- in the blood. The result: the body’s cells starve from the lack of glucose. And, if left untreated, the high level of “blood sugar” can damage eyes, kidneys, nerves, and the heart, and can also lead to coma and death.