METABOLIC Syndrome: a Global Perspective
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Transcript of METABOLIC Syndrome: a Global Perspective
METABOLIC SYNDROME:A GLOBAL PERSPECTIVECharles Wang, PharmD Candidate
Objectives Defining Metabolic Syndrome (MetS) Factors leading to Metabolic Syndrome Metabolic Syndrome Around the World Treatment Test
Definition Metabolic Syndrome goes by many
names Metabolic syndrome X Cardiometabolic syndrome Syndrome X Insulin resistance syndrome Reaven’s syndrome (named after Gerald
Reaven) CHAOS (Australian)
Definition Metabolic Syndrome is a collection of
medical disorders that when occur together, increase risk of cardiovascular disease and diabetes.
Incorrectly classified as First World Problem Can occur in any nation, regardless of wealth All starts with obesity Main culprit is insulin resistance On the rise
Diagnosis Depends on the organization International Diabetes Federation
Central Obesity (determined by waist circumference) AND two of the following Triglycerides > 150 mg/dL HDL < 40 mg/dL in males <50 mg/dL in
females Systolic >130 or diastolic >85 mmHg FPG > 100 mg/dL
If BMI > 30 kg/m^2 central obesity is assumed
Diagnosis World Health Organization
Diabetes Type 1 or 2, impaired glucose tolerance, impaired fasting glucose, or insulin resistance, AND two of the following Blood Pressure ≥ 140/90 mmHg Dyslipidemia: TG ≥ 1.695 mmol/L and HDL ≤
0.9 mmol/L male, ≤ 1.0 mmol/L female Central Obesity: waist:hip ratio > 0.9 in males,
> 0.85 in females, or BMI > 30 kg/m^2 Microalbuminuria: excretion ratio ≥ mcg/min or
albumin:creatinine ration ≥ 30 mg/g
Diagnosis European Group for the Study of Insulin
Resistance Requires insulin resistance defined as the top
25% of the fasting insulin values among non-DM AND two or more of the following
Central obesity: waist circumference ≥ 94 cm in males and ≥ 80 cm in females
Dyslipidemia: TG ≥ 2.0 mmol/L and/or HDL < 1 Hypertension: ≥ 140/90 mmHg Fasting plasma glucose ≥ 6.1 mmol/L
Diagnosis National Cholesterol Education Program
ATP III At least 3 of the following
Central obesity: WC ≥ 40 inches in males ≥ 36 in female
Dyslipidemia: TG ≥ 150 mg/dl HDL < 40 in males, < 50 in females
HTN: ≥ 130/85 mmHg Fasting Plasma Glucose ≥ 110
Definition Diseases that encompass metabolic syndrome
Central Obesity Insulin Resistance Hypertension Hyperlipidemia
Australian CHAOS Coronary artery disease Hypertension Adult onset diabetes Obesity Stroke
Central Obesity Also known as the following
Abdominal obesity Belly fat
It is high fat content in the abdominal areas
Excessive Visceral fat (organ fat) Intra-abdominal fat Located inside the peritoneal cavity Packed in between internal organs
Central Obesity
Pathophysiology
Insulin Resistance Impaired fasting glucose >100 mg/dL Impaired glucose tolerance
> 140 mg/dL for 120 minutes after ingestion of 75 grams of glucose
Elevated homeostatic model assessment of insulin resistance (HOMA-IR) Quantifies insulin resistance and beta-cell
function with formula
Pathophysiology
Dyslipidemia Atherogenic dyslipidemia
High plasma TG Low HDL cholesterol levels Increase in small dense LDL
Pathophysiology
Hypertension Most important single, modifiable risk
factor for stroke and an important risk factor for atherosclerosis and ischemic heart disease
Disease caused by endothelial dysfunction Fails to serve its normal physiological and
protective mechanisms
Pathophysiology
Statistics As countries “westernize/urbanize”
Theory is mankind evolved on limited nutrition and excess causes fat storage
Increased access to food Decreased physical activity
Sedentary lifestyle Diet high carbohydrates Increases in obesity, dyslipidemia,
hypertension, hyperglycemia/diabetes No longer diseases of the wealthy
Metabolic Syndrome Around the World
By 2025, three out of four people with diabetes will be living in third world countries.
United States ~25% have metabolic syndrome as defined by the
WHO 50 million in 1990, 64 million in 2000
India Urbanization has caused an increase in
hypertension in slums and increase risk of diabetes in females with normal BMI (18-25)
~29% of the population have metabolic syndrome
Metabolic Syndrome Around the World
China Overweight 26.9% in men, 31.1% in women 13.2% have metabolic syndrome Higher in northern China than southern Higher in urban residents vs rural Growing rapidly due to aging population
and urbanization
Metabolic Syndrome Around the World
UK Average BMI in 1970s was ~23 Average BMI in 1990s was ~26
Metabolic Syndrome Around the World
Treatment Lifestyle Changes
Lose weight Exercise Follow a heart healthy diet Stop smoking
Pharmacological Interventions Take your meds as prescribed