বাংলাদেশ কৃষক ঐক্য জোট ঘোষণা পত্র

ইনসুলিন রেসিস্ট্যান্স - Insulin Resistance

 

 

Insulin Resistance: Metabolic state in which normal insulin levels produce a reduced biologic response, so the pancreas compensates by producing more insulin. It is often clinically silent, but it is strongly associated with central obesity, acanthosis nigricans, skin tags, dyslipidemia, hypertension, NAFLD, PCOS, prediabetes, and type 2 diabetes risk.

🔹 Core presentation
➟ Often asymptomatic
➟ May be detected on routine blood tests
➟ Central weight gain may be present
➟ Think insulin resistance before overt diabetes develops.

🔹 Skin clues
➟ Acanthosis nigricans
➟ Dark, velvety thickened skin patches
➟ Common on neck, axillae, groin, or knuckles
➟ Skin tags may also be seen.

🔹 Metabolic syndrome clues
➟ Increased waist circumference
➟ High triglycerides
➟ Low HDL cholesterol
➟ Hypertension and impaired glucose regulation may coexist.

🔹 Glucose-related symptoms
➟ Usually absent in early stages
➟ Fatigue may occur
➟ Polyuria and polydipsia suggest hyperglycemia
➟ Blurred vision may occur if glucose is significantly elevated.

🔹 PCOS association
➟ Irregular menstrual cycles
➟ Acne
➟ Hirsutism
➟ Insulin resistance commonly contributes to hyperandrogenism in PCOS.

🔹 Liver clue
➟ Fatty liver may coexist
➟ Mild ALT/AST elevation may be seen
➟ Strongly linked with metabolic dysfunction
➟ NAFLD/MASLD is an important associated condition.

🔹 Cardiovascular risk clues
➟ Hypertension
➟ Dyslipidemia
➟ Visceral obesity
➟ Insulin resistance increases long-term cardiometabolic risk.

🔹 Diagnosis / assessment
➟ No single routine clinical test is required for all patients
➟ Assess metabolic risk pattern clinically
➟ Check fasting glucose, HbA1c, and lipid profile
➟ Consider liver enzymes, waist circumference, BP, and diabetes risk factors.

🔹 Prediabetes / diabetes screening
➟ Fasting plasma glucose
➟ HbA1c
➟ 75-g oral glucose tolerance test may be used
➟ These tests diagnose prediabetes/diabetes, not insulin resistance directly.

🔹 Insulin resistance markers
➟ Fasting insulin may be elevated
➟ HOMA-IR can estimate insulin resistance in research or selected clinical settings
➟ Results vary by lab and population
➟ Not usually needed for routine diagnosis when glucose/metabolic risk is clear.

🔹 Important differentials
➟ Cushing syndrome
➟ Hypothyroidism
➟ PCOS
➟ Medication-induced weight gain or hyperglycemia, especially glucocorticoids and some antipsychotics.

🔹 High-Yield Points
➟ Insulin resistance is often silent
➟ Classic visible clue = acanthosis nigricans with skin tags
➟ Strong associations: obesity, PCOS, NAFLD/MASLD, metabolic syndrome, prediabetes, type 2 diabetes
➟ Diagnosis is usually based on metabolic risk assessment plus glucose and lipid testing
➟ HbA1c, fasting glucose, and OGTT detect dysglycemia, not insulin resistance directly.

Medical disclaimer: This note is for education only and is not a substitute for professional medical advice, diagnosis, or treatment.