Which of the following is not seen in Von-gierke’s disease?
So the core concept here is the enzyme deficiency leading to specific clinical manifestations. The question is asking which finding is NOT seen in this disease. Common features include hepatomegaly, hypoglycemia, lactic acidosis, hyperlipidemia, and sometimes renal issues over time. Also, because the enzyme is defective, the liver can't release glucose, so patients can't maintain blood sugar levels, leading to hypoglycemia. They might have elevated lactate because the Cori cycle is affected, leading to lactic acidosis.
Now, the correct answer would be an option that doesn't align with these features. For example, if an option mentions hyperglycemia, that would be incorrect. Or maybe something like muscle weakness, which is more common in other types of glycogen storage diseases. Wait, Von Gierke's primarily affects the liver, not muscle, so muscle involvement isn't typical. So if an option lists muscle symptoms, that's a wrong answer. But the question is about what's not seen. Let me think of the options. Let's say the options are A. Hypoglycemia, B. Lactic acidosis, C. Hyperlipidemia, D. Hyperglycemia. Then D would be the correct answer because hyperglycemia isn't seen; instead, hypoglycemia is a hallmark.
Each incorrect option should be explained. For example, hypoglycemia is a key feature because the enzyme deficiency prevents glucose release. Lactic acidosis occurs due to impaired gluconeogenesis leading to lactate accumulation. Hyperlipidemia happens because the liver can't regulate lipid metabolism properly. The incorrect options are the ones that don't fit these points. The clinical pearl here is to remember that Von Gierke's disease is type I, enzyme is glucose-6-phosphatase, and the absence of this leads to hypoglycemia, not hyperglycemia. The correct answer would be the one that contradicts these points.
**Core Concept**
Von Gierke's disease (GSD-I) is caused by glucose-6-phosphatase deficiency, impairing hepatic glucose release and gluconeogenesis. Key features include hypoglycemia, lactic acidosis, hyperlipidemia, and hepatomegaly due to glycogen and lipid accumulation.
**Why the Correct Answer is Right**
Hyperglycemia is never seen in GSD-I. The defective enzyme prevents glucose-6-phosphate from being converted to free glucose, leading to **chronic hypoglycemia**, not hyperglycemia. This contrasts with other GSD types (e.g., Type II) where glycogen breakdown is blocked, but gluconeogenesis remains intact.
**Why Each Wrong Option is Incorrect**
**Option A:** *Hypoglycemia* is a hallmark of GSD-I due to impaired