The Medical Biochemistry course explores the molecular and chemical foundations of life and their direct relevance to human health and disease. It provides an integrated understanding of the structure and function of biomolecules, the organization and regulation of metabolic pathways, and the biochemical mechanisms underlying cellular and systemic physiology.
Students will study how carbohydrates, lipids, proteins, nucleic acids, and vitamins participate in vital biochemical processes, and how disturbances in these processes lead to metabolic disorders. The course also emphasizes bioenergetics, enzymology, molecular biology, and clinical biochemistry, linking fundamental science with practical applications in diagnosis and treatment.
Practical sessions are designed to develop essential laboratory skills, including the use of biochemical techniques for analyzing blood and body fluids, enzyme assays, and metabolic testing. Through lectures, case studies, and hands-on experiments, students gain the ability to interpret biochemical results in a clinical context, bridging basic science with medical practice.
Learning Objectives
By the end of this course, students should be able to:
- Explain the molecular structure, function, and interactions of biological macromolecules.
- Describe the metabolism of carbohydrates, lipids, amino acids, and nucleotides, and their integration in normal and altered physiological states.
- Understand enzyme kinetics, mechanisms, regulation, and clinical applications of enzymes as diagnostic markers.
- Recognize the biochemical roles of vitamins, minerals, and hormones in metabolic regulation.
- Explain the molecular basis of genetic information, DNA replication, transcription, translation, and mutations.
- Interpret laboratory results and biochemical investigations used in clinical diagnosis.
- Apply biochemical concepts to understand the pathophysiology of common diseases such as diabetes mellitus, liver dysfunction, renal failure, and metabolic syndromes.
- Demonstrate competence in basic biochemical laboratory techniques and safety.
Course Format
- Lectures: Covering theoretical and conceptual aspects of biochemical systems.
- Laboratory Sessions: Practical exercises on enzyme activity, qualitative and quantitative analysis of biomolecules, and interpretation of clinical tests.
- Tutorials / Case Studies: Discussion of biochemical abnormalities and clinical case interpretation.
- Independent Study: Reading assignments, problem sets, and use of biochemical atlases and lab manuals.
Assessment Methods
- Written Exams: MCQs, structured short-answer, and essay questions assessing understanding and integration of concepts.
- Practical Exams: Lab-based tests to assess experimental skills and data interpretation.
- Continuous Assessment: Quizzes, assignments, lab reports, and class participation.
- Final Comprehensive Exam: Theoretical and practical evaluation integrating all course units.
Prerequisites
- Basic Biochemistry and Cell Biology (from the first year of medical studies)
Learning Outcomes
Upon successful completion, students will have:
- A solid understanding of human biochemical processes at the molecular and cellular levels.
- The ability to connect biochemical alterations with pathological conditions.
- The foundational biochemical knowledge required for further study in Physiology, Pathology, Pharmacology, and Clinical Medicine.
Curriculum
- 8 Sections
- 30 Lessons
- 150 Days
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- Unit 1: Enzymology & Fundamentals2
- 1.1Definition and classification of enzymes; enzyme kinetics (Michaelis-Menten, Lineweaver–Burk), mechanism of action, isoenzymes, factors affecting enzyme activity, enzyme inhibition and control of metabolic pathways.
- 1.2Introduction to metabolic regulation, overview of major metabolic pathways and their interrelationships.
- Unit 2: Vitamins, Coenzymes & Micronutrients4
- 2.1Fat-soluble vitamins (A, D, E, K): metabolism, biochemical functions, deficiencies and excesses.
- 2.2Water-soluble vitamins (B-complex, C): roles in enzymatic reactions, coenzyme forms, deficiency diseases.
- 2.3Trace elements, antioxidants, free radicals, redox status.
- 2.4Nutritional biochemistry: macro- and micronutrients, nutritional requirements, obesity, malnutrition.
- Unit 3: Carbohydrate Metabolism4
- 3.1Digestion, absorption, transport of carbohydrates.
- 3.2Glycolysis, gluconeogenesis, glycogen metabolism, pentose phosphate pathway, fructose and galactose metabolism.
- 3.3Integration of carbohydrate metabolism in fed, fasting and exercise states.
- 3.4Clinical correlations: e.g., glycolytic enzyme deficiencies, lactose intolerance.
- Unit 4: Lipid Metabolism4
- 4.1Structure and classification of lipids, fatty acid oxidation and synthesis, ketone bodies.
- 4.2Triacylglycerol, phospholipids, sphingolipids, lipoproteins and metabolism.
- 4.3Cholesterol metabolism, bile acids, steroid hormones.
- 4.4Regulation of lipid metabolism and clinical aspects (e.g., dyslipidaemias, atherosclerosis).
- Unit 5: Amino Acid & Protein Metabolism4
- 5.1Structure and classification of amino acids; transamination, deamination.
- 5.2Urea cycle, amino acid catabolism, biosynthesis of non-essential amino acids.
- 5.3Protein turnover, synthesis, post-translational modifications.
- 5.4Clinical aspects: inherited metabolic disorders, hyperammonemia, aminoacidopathies.
- Unit 6: Nucleic Acids, Molecular Biology & Genetics4
- 6.1Structure and chemistry of nucleotides and nucleic acids.
- 6.2DNA replication, repair, recombination; RNA transcription, processing; protein synthesis and regulation.
- 6.3Gene regulation, epigenetics, oncogenes and tumour suppressors, mutagens and mutations.
- 6.4Biotechnology applications and clinical genetic testing.
- Unit 7: Integrated Metabolism & Body Fluids4
- 7.1Integration of metabolic pathways: coordination between carbohydrate, lipid, protein, nucleic acid metabolism.
- 7.2Bioenergetics and oxidative phosphorylation, metabolic adaptation (exercise, starvation, stress).
- 7.3Body fluids composition and clinical biochemistry: blood, plasma, CSF, urine, synovial fluid, etc.
- 7.4Hormonal regulation of metabolism: insulin, glucagon, thyroid hormones, adrenal hormones, growth hormone.
- Unit 8: Clinical Biochemistry & Diagnostic Methods4
- 8.1Principles of biochemical laboratory techniques: spectrophotometry, chromatography, electrophoresis, immunoassays.
- 8.2Interpretation of common biochemical investigations: liver function tests, kidney function tests, electrolyte balance, acid-base disorders.
- 8.3Biochemical basis of disease: diabetes mellitus, metabolic syndrome, inherited metabolic disorders, tumours, inborn errors of metabolism.
- 8.4Case-based discussions and clinical correlations.
