Structure of Heme Heme is a ferro-proto-porphyrin. Heme = Protoporphyrin IX ring + Iron (Fe) in center Protoporphyrin IX = porphyrin with attachment to 4 Methyl, 2 Propionyl and 2 Vinyl groups. Porphyrin = Cyclic structure with 4 pyrrole rings Pyrrole rings are derived from Porphobilinogen (PBG) Hydroxymethylbilane = Linear…
Author: Dr. Sulabh Kumar Shrestha, MS Orthopedics
He is the section editor of Orthopedics in Epomedicine. He searches for and share simpler ways to make complicated medical topics simple. He also loves writing poetry, listening and playing music. He is currently pursuing Fellowship in Hip, Pelvi-acetabulum and Arthroplasty at B&B Hospital.
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Medical Humanities in Nepal
The practice of medicine is an art, not a trade; a calling, not a business; a calling in which your heart will be exercised equally with your head. – Mark E Silverman Shapiro et.al. defined medical humanities with characteristic features: Use of methods, concepts, and content from one or more…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Cholesterol Synthesis Mnemonic
Liver as a hub of cholesterol metabolism All nucleated cells have the capacity to synthesize cholesterol from acetyl-CoA (like most biological lipids). 90% of synthesis occurs in liver and intestine. The cholesterol biosynthesis pathway involves enzymes that are in the cytoplasm, microsomes (ER), and peroxisomes. Liver obtains cholesterol from 3…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Inheritance of Disease – Mnemonics
Lets work with some generalizations 1. X-linked dominant, mitochondrial and Y-linked conditions are rare. You need to remember them. 2. Usually inherited in autosomal dominant pattern are: Mostly mutations in non-enzymatic structural proteins (e.g. collagen, fibrillin, cytoskeletal proteins of RBC) or in membrane receptors (e.g. LDL receptor) Diseases due to diminished…
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Why to not defibrillate Asystole ?
What is asystole? Asystole is a state of no cardiac electrical activity. It is seen as a “flat-line” in ECG monitor. However, other possible causes of flat-line should be ruled out before calling it asystole. They are: Loose or disconnected ECG leads Loss of power to ECG monitor Once, asystole…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Amino Acids Mnemonics
What are amino acids ? Amino acids are molecules containing: An amine group A carboxylic acid group A side chain that varies between different amino acids Assign the names of these amino acids to 20 different alphabets The technique that you are going to use to remember all these are given…
Case Reports
Postpartum Eclampsia : Case Discussion
History 23yrs/F non-diabetic, non-hypertensive, non-smoker, non-alcoholic primigravida was admitted to Obstetric ward on with the chief complaints of: Cessation of menstruation X 9 months Decreased fetal movement X 6 hours LMP 2072/04/12 EDD 2073/01/19 GA 41 WOG Examination
PGMEE, MRCS, USMLE, MBBS, MD/MS
Complement Pathway – Explained
The complement system is composed of about 20 different proteins released into the blood after production in the liver. They interact in coordinated and regulated way to produce biologically active protein products. ACTIVATION OF COMPLEMENT CASCADE The complement cascade can be activated in 3 ways: C3 and C3 CONVERTASE All of…