The following videos are paid content from my Medical Biochemistry for USMLE Step 1 Exam video course. Only a select few of the videos are available for free as part of the free trial of the course. The free YouTube snippet links below give you a sneak peek at some of the videos, but to watch the rest of the free sample videos, you must sign up for a free trial. If, after taking a look at the free trial videos, you'd like to purchase full access to the course, you can do so. Click here to visit the course page.
Protein / Amino Acid Metabolism
- Intro / Overview [ full free sample video ]
- Protein Digestion and Absorption: Digestion [ full free sample video ]
- Protein Digestion and Absorption: Absorption
- Transamination Reactions and Aminotransferases / Transaminases [ full free sample video ]
- Glutamate Dehydrogenase (GLDH) [ full free sample video ]
- Glutamine Synthetase (GS) [ full free sample video ]
- Glutaminase [ full free sample video ]
- Glucose-Alanine Cycle [ full free sample video ]
- Summary of Amino Acid Metabolism in Liver [ full free sample video ]
Urea Cycle
- Intro / Overview [ full free sample video ]
- Details [ full free sample video ]
- with Enzymes, GLDH, Glutaminase, etc. [ full free sample video ]
- Regulation (Long Term vs Short Term) [ full free sample video ]
- Disorders and Treatments: Overview [ full free sample video ]
- Disorders and Treatments: A Few More Notes
One Carbon Transfers
- Intro / Overview [ full free sample video ]
- Biotin [ full free sample video ]
- Tetrahydrofolate (THF): Intro [ full free sample video ]
- Tetrahydrofolate (THF): Conversions [ full free sample video ]
- S-Adenosylmethionine (SAM) [ full free sample video ]
Amino Acid Degradation
- Intro / Overview [ full free sample video ]
- Glucogenic vs Ketogenic Amino Acids [ full free sample video ]
- Amino Acids Degraded to Pyruvate [ full free sample video ]
- Amino Acids Degraded to Acetyl-CoA [ full free sample video ]
- Amino Acids Degraded to Fumarate [ full free sample video ]
- Amino Acids Degraded to α-Ketoglutarate (α-KG) [ full free sample video ]
- Amino Acids Degraded to Succinyl-CoA [ full free sample video ]
- Branched Chain Amino Acids (BCAAs) [ full free sample video ]
- Amino Acids Degraded to Oxaloacetate (OAA) [ full free sample video ]
- Summary [ full free sample video ]
Amino Acid Synthesis
- Intro and Essential vs Non-Essential Amino Acids
- Synthesis of Non-Essential Amino Acids
Disorders of Amino Acid Metabolism
- Intro / Overview [ full free sample video ]
- Classic Phenylketonuria (PKU)
- Malignant Phenylketonuria (PKU)
- Albinism
- Alkaptonuria (AKU) [ free YouTube snippet | full free sample video ]
- Tyrosinemia Type I (Tyrosinosis)
- Homocystinuria
- Propionic Acidemia
- Methylmalonic Acidemia
- Maple Syrup Urine Disease (MSUD)
Amino Acid Derivatives
- Catecholamines: Intro
- Catecholamines: Synthesis (and Degradation)
- Serotonin and Melatonin
- Creatine
- Melanin
- Histamine
- γ-Aminobutyric Amino Acid (GABA)
Heme and its Metabolism
- Heme: Intro / Overview [ free YouTube snippet | full free sample video ]
- Porphyrins: Structure and Relevance [ free YouTube snippet | full free sample video ]
- Heme Biosynthesis: Details
- Heme Biosynthesis: Overview
- Porphyrias: Intro / Overview
- Porphyrias: ALA Dehydratase Deficient Porphyria
- Porphyrias: Acute Intermittent Porphyria (AIP)
- Porphyrias: Congenital Erythropoietic Porphyria (CEP)
- Porphyrias: Porphyria Cutanea Tarda (PCT)
- Porphyrias: Hereditary Coproporphyria (HCP)
- Porphyrias: Variegate Porphyria (VP)
- Porphyrias: Erythropoietic Protoporphyria (EPP) [ free YouTube snippet | full free sample video ]
- Heme Biosynthesis Clinical Correlate: X-Linked Sideroblastic Anemia (XLSA)
- Heme Biosynthesis Clinical Correlate: Lead Poisoning
- Heme Degradation: Details
- Heme Degradation: Overview / Summary
- Heme Degradation: Hyperbilirubinemia and Jaundice