Diabetes II

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1
Describe 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
2
What is the normal range of fasting glucose?
3.5 -5.6 mmol/l
3
What is HbA1c?
Diagnostic test which reflects the average plasma glucose over the previous 8 to 12 weeks
4
What HbA1c indicates cut off for diagnosing diabetes?
48mmmol/mol
5
What does a HbA1c indicate?
The plasma glucose over the past two to three months
6
What are the advanatges of HbA1c?
Reliable; Easy sample of collection; Convenient for patients
7
What are the limitations of HbA1c?
May be affected by a variety of geentic and illness related factors; it cannot detect early onset of dysglycaemia
8
What are the treatments of type 1 diabetes?
Insulin analogues
9
What are some improvements in metabolic control?
New generation insulins; AID systems; Adjunctive treatments
10
Describe 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.
11
What 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.
12
What 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.
13
Whata 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.
14
What are some treatments of type 2 diabetes?
Lifestyle modification; Metformin; SGLT2 inhibitors; GLP1 receptor agonists; DPP4 inhibitors; Sulfonylureas; Thiazolidinediones; Insulin when required.
15
How 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.
16
How 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.
17
What 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.
18
What 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.
19
What are some examples of GLP agonists?
Semaglutide; Liraglutide; Dulaglutide; Exenatide; Lixisenatide.
20
What 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.
21
What 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.
22
How 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.
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