Study Notes

Basic Principles of Treatment of a Fracture The treatment of fractures involves a systematic approach to restore the normal anatomy and function of the affected bone. The basic principles of fracture treatment can be summarized in three key steps: reduction, fixation, and immobilization. 1. Reduction Definition: Reduction is the process of restoring the fractured bone fragments to their original anatomical position. Methods of Reduction: Clos…

Doxycycline Commonly prescribed for infections and to treat acne. treat urinary tract infections, gum disease, and other bacterial infections such as gonorrhea and chlamydia., as a prophylactic treatment for infection by Bacillus anthracis (anthrax). It is also effective against Yersinia pestis and malaria.…

Heroin (diacetyl morphine) Heroin is synthetically derived from the natural opioid alkaloid morphine Largely owing to its very rapid onset of action and very short half-life, heroin is a popular drug of abuse It is most effective when used intravenously Heroin is rapidly deacetylated to 6-monoacetyl morphine and morphine, both of which are active at the mu opioid receptor More lipid soluble than morphine and about 2½ times more potent.  It…

Leukoedema Diagnostic Feature: Lesions do not rub off; disappear when cheek is stretched Heck's Disease (Focal Epithelial Hyperplasia) Appearance: Cobblestone mucosa Also Seen In: Pyostomatitis vegetans, Keratosis follicularis Infectious Mononucleosis Nickname: Kissing disease Etiology: Epstein–Barr Virus (EBV)…

Protein folding is essential for proper biological function. When folding goes wrong, it can trigger a cascade of pathological effects. Here are three key examples: 1. Alzheimer’s Disease Misfolded Protein: Amyloid-β (Aβ) and tau Mechanism: Aβ peptides misfold and aggregate into amyloid plaques in the brain. Tau proteins form neurofibrillary tangles inside neurons. Impact: Neuro…