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Biochemistry ((link)) — Sketchy Medical

It is important to note that Sketchy Medical is a proprietary, copyrighted video curriculum. Reproducing the script, specific symbolic associations, or the artistic content of their videos verbatim would be a violation of copyright laws.

However, I can provide a comprehensive written summary of the high-yield biochemistry concepts typically covered in the Sketchy Biochemistry curriculum. This text is designed to serve as a study companion, organized by the major biochemical pathways and associating key diseases with their mechanisms. sketchy medical biochemistry

Here is a full review text covering the core topics of Medical Biochemistry. It is important to note that Sketchy Medical

Comparison: Sketchy Biochem vs. Pixorize vs. Dirty Medicine

The market for visual mnemonics is competitive. How does Sketchy stack up? Comparison: Sketchy Biochem vs

  • Sketchy Medical Biochemistry: Best production value. Longest videos. Most comprehensive. Best for TCA cycle and ETC. Art style is dark, gritty, and "sketchy."
  • Pixorize: A direct competitor. Their biochem is excellent, often more colorful and less "chaotic" than Sketchy. Many students prefer Pixorize for Vitamins and Lysosomal storage diseases because the scenes are cleaner. However, Pixorize’s coverage of pathways like Gluconeogenesis is slightly less robust than Sketchy's.
  • Dirty Medicine (YouTube): Free. Fast. Hilarious. Great for high-yield facts (e.g., "Osteogenesis Imperfecta = Blue Sclerae"). But it lacks the holistic system mapping of Sketchy. It is a supplement, not a replacement.

The Verdict: If you have a photographic memory, use Pixorize. If you like chaotic, interconnected stories (like "Where's Waldo?" for enzymes), use Sketchy.

Cholesterol & lipoproteins

  • HMG-CoA reductase: rate-limiting in cholesterol synthesis; inhibited by statins.
  • Lipoprotein overview: Chylomicrons (TG transport), VLDL (endogenous TG), IDL → LDL (cholesterol to tissues), HDL (reverse cholesterol transport).
  • Familial dyslipidemias (select):
    • Type IIa (familial hypercholesterolemia): LDL receptor defect → high LDL, premature atherosclerosis.

Medical Biochemistry: A High-Yield Review

Lipid metabolism

  • FA synthesis: Acetyl-CoA → malonyl-CoA (ACC, rate-limiting, activated by insulin, inhibited by palmitoyl-CoA). Fatty acid synthase builds palmitate (C16).
  • Beta-oxidation: Occurs in mitochondria; carnitine shuttle required for long-chain FAs. Primary carnitine deficiency → muscle weakness, hypoketotic hypoglycemia.
  • Ketogenesis: In liver mitochondria from excess acetyl-CoA (starvation, uncontrolled diabetes) → acetoacetate, β-hydroxybutyrate.