1Describe how hyperglycaemia causes the glycation of proteins.
Non enzymatic reaction between the active carbonyl groups of reducing sugars and free amines of nucleic acids, proteins and lipids
2What is the normal range of fasting glucose?
3.5 -5.6 mmol/l
3What is HbA1c?
Diagnostic test which reflects the average plasma glucose over the previous 8 to 12 weeks
4What HbA1c indicates cut off for diagnosing diabetes?
48mmmol/mol
5What does a HbA1c indicate?
The plasma glucose over the past two to three months
6What are the advanatges of HbA1c?
Reliable; Easy sample of collection; Convenient for patients
7What are the limitations of HbA1c?
May be affected by a variety of geentic and illness related factors; it cannot detect early onset of dysglycaemia
8What are the treatments of type 1 diabetes?
Insulin analogues
9What are some improvements in metabolic control?
New generation insulins; AID systems; Adjunctive treatments
10Describe immunotherapies and non immune modulators can treat automimmunity in type 1 diabetes.
Immunotherapies target the immune response responsible for beta-cell destruction, while non immune modulators aim to preserve beta-cell function or improve metabolic control.
11What is Teplixumab and what does it do?
Teplizumab is an anti-CD3 monoclonal antibody that modulates T-cell activity and can delay progression from stage 2 to stage 3 type 1 diabetes in eligible patients.
12What are some examples of ongoing clinical trials for treating type 1 diabetes?
Trials investigating immune-modulating therapies, antigen-specific immunotherapy, beta-cell replacement using stem-cell-derived islet cells, encapsulated islet cells and combination therapies to preserve beta-cell function.
13Whata re beta cell replacement therapies?
Treatments that replace lost pancreatic beta cells using donor islet cells or stem-cell-derived insulin-producing cells, with the aim of restoring endogenous insulin production.
14What are some treatments of type 2 diabetes?
Lifestyle modification; Metformin; SGLT2 inhibitors; GLP1 receptor agonists; DPP4 inhibitors; Sulfonylureas; Thiazolidinediones; Insulin when required.
15How does metformin work to treat type 2 diabetes?
Primarily reduces hepatic gluconeogenesis, lowering hepatic glucose output. It also improves insulin sensitivity and has a low risk of hypoglycaemia when used alone.
16How do SGLT2 inhibitors help treat type 2 diabetes?
Block sodium-glucose cotransporter 2 in the proximal renal tubule, reducing glucose reabsorption and increasing urinary glucose excretion. They can also provide cardiovascular and renal benefits in appropriate patients.
17What are DPP4 inhibtors and how do they work?
DPP4 inhibitors are drugs that prevent the breakdown of incretin hormones such as GLP1 and GIP, increasing glucose-dependent insulin secretion and reducing glucagon secretion.
18What are GLP1 agonists and what effect do they have?
GLP1 receptor agonists mimic the incretin hormone GLP1, increasing glucose-dependent insulin secretion, reducing glucagon secretion, slowing gastric emptying and increasing satiety, which can improve glycaemic control and promote weight loss.
19What are some examples of GLP agonists?
Semaglutide; Liraglutide; Dulaglutide; Exenatide; Lixisenatide.
20What other beneficial effects does GLP1 have on other organs?
Cardiovascular benefits, including reduced risk of major cardiovascular events with certain agents; kidney benefits in selected patients; reduced appetite and body weight; and improved metabolic risk factors.
21What is tirzepatide?
A dual GIP and GLP1 receptor agonist that improves glucose-dependent insulin secretion, reduces glucagon secretion, slows gastric emptying and reduces appetite, leading to improved glycaemic control and substantial weight loss.
22How can beta cell function be enhanced in type 2 diabetes?
Improve glycaemic control and reduce glucotoxicity; use incretin-based therapies such as GLP1 receptor agonists or DPP4 inhibitors to enhance glucose-dependent insulin secretion; address obesity and insulin resistance through lifestyle changes and appropriate medication.