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Diabetic Retinopathy

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

Diabetic Nephropathy

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...

Diabetic Neuropathy

Diabetic Neuropathy

DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...

Type II Diabetes II: Pathophysiology

Type II Diabetes II: Pathophysiology

PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.

Blood Studies for Cardiovascular System III: Serum Lipid Profile

Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...

Complications of Diabetes Mellitus

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Diabetes mellitus is a chronic metabolic disorder characterized by persistent hyperglycemia due to insulin deficiency, resistance, or both. Prolonged hyperglycemia disrupts metabolic homeostasis and leads to acute and chronic complications.Acute ComplicationsAcute complications result from sudden metabolic imbalance.Diabetic ketoacidosis (DKA) mainly appears in type 1 diabetes but may also develop in type 2 diabetes, particularly under extreme stress. It arises from severe insulin deficiency,...

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An Assay to Detect Protection of the Retinal Vasculature from Diabetes-Related Death in Mice

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Lipids and diabetic retinopathy.

Laurence S Lim¹, Tien Y Wong

¹Singapore Eye Research Institute, Singapore National Eye Centre, 11 Third Hospital Ave, #05-00, 168751, Singapore.

Expert Opinion on Biological Therapy

|November 30, 2011

Summary

Diabetic retinopathy (DR) research shows traditional lipid markers lack a clear association with DR. Future studies should explore novel lipid biomarkers and lipid-lowering therapies for diabetic retinopathy.

Area of Science:

Ophthalmology
Endocrinology
Metabolic Syndrome

Background:

Diabetic retinopathy (DR) is a leading cause of vision loss globally.
The link between dyslipidemia and DR is extensively studied but not definitively established.
This review synthesizes current understanding of lipids' role in DR.

Purpose of the Study:

To critically evaluate the association between traditional lipid markers and DR.
To discuss novel lipid biomarkers and their potential role in DR.
To review lipid-lowering therapies and emerging treatments for DR.

Main Methods:

Literature review of clinical studies on traditional lipid markers and DR.
Analysis of proposed biological mechanisms linking lipids and DR.

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Discussion of emerging lipid fractions as potential DR biomarkers.

Main Results:

Current evidence shows a lack of clear association between traditional lipid markers and DR.
Novel lipid fractions are emerging as potential biomarkers for DR.
Lipid-lowering therapies' efficacy and mechanisms in DR require further elucidation.

Conclusions:

Clarify the role of novel lipid biomarkers in DR.
Elucidate the pathways of lipid-lowering therapies in preventing diabetic retinal complications.
Identify patient profiles that would most benefit from lipid-targeted treatments for DR.