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Showing posts with the label hppsc previous paper discussion

cerebral malaria pathology and microbiology

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Certainly, here's an overview of cerebral malaria: ## Cerebral Malaria: A Severe Complication of Malaria Infection **Introduction:** Cerebral malaria is a severe and life-threatening complication of infection with the malaria parasite, primarily caused by the Plasmodium falciparum species. It is characterized by the presence of neurological symptoms and can lead to coma, brain damage, and death if not promptly treated. **Causes and Pathogenesis:** Cerebral malaria occurs when infected red blood cells (RBCs) containing mature Plasmodium falciparum parasites adhere to the walls of small blood vessels in the brain. This adherence can block blood flow, impair oxygen delivery, and trigger an inflammatory response. The exact mechanisms leading to cerebral malaria are complex and involve a combination of parasite factors, host factors, and the immune response. **Symptoms:** Cerebral malaria typically manifests with the following symptoms: 1. **Altered Mental State:** Patients

calcium channel blockers pharmacology

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Certainly, let's explore the topic of calcium channel blockers: ## Calcium Channel Blockers: Mechanism of Action and Clinical Significance **Introduction:** Calcium channel blockers (CCBs) are a class of medications commonly used to treat various cardiovascular conditions. They work by inhibiting the influx of calcium ions into cells through voltage-gated calcium channels. This mechanism of action has significant effects on cardiac and smooth muscle function, making CCBs valuable for managing conditions like hypertension, angina, and certain arrhythmias. **Mechanism of Action:** CCBs exert their effects primarily by binding to and blocking the L-type calcium channels in cell membranes. These channels are responsible for allowing calcium ions to enter cells in response to depolarization. By inhibiting calcium entry, CCBs influence muscle contraction, electrical conduction, and vascular tone. **Types of Calcium Channels:** 1. **L-Type Channels:** Found in cardiac and smoo