
Virology is a subdiscipline of microbiology that studies the morphology, genetic structure, biochemical properties, replication strategies, interactions with host cells, and methods of diagnosis, treatment, and prevention of diseases caused by viruses. Viruses are obligate intracellular parasites that can replicate only within living cells and lack metabolic activity. In their extracellular phase, viruses are inactive; upon entering a host cell, they use the host’s enzymatic and ribosomal system
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Biochemistry is the scientific discipline that studies chemical processes in living organisms at the molecular level. It comprehensively examines the building blocks of cells, their interactions, energy transformations, and all biochemical reactions necessary for sustaining life. Biochemistry is one of the foundational pillars of modern scientific understanding, intersecting with numerous disciplines including chemistry, biology, physics, medicine, and engineering.Historical Development and Scie
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Drug release refers to the process by which an active substance administered in a dosage form (e.g. tablet, capsule, implant) exits the form and exerts its effect under controlled or uncontrolled conditions. This process involves three fundamental steps: disintegration of the dosage form, disaggregation of particles, and dissolution.Controlled Release SystemsControlled release systems aim to deliver the active substance at a predetermined rate and maintain constant plasma concentrations. They im
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Vitamin A is one of the first recognized vitamins and is a fat-soluble molecule. The molecules exhibiting vitamin A activity, also known as retinoids, contain isoprene units and are classified as steroids. It is known that carotenoids, the precursors of vitamin A, play a role in preventing cancer by reducing the harmful effects of free radicals through their potent antioxidant properties and thereby limiting the impact of carcinogenic substances.General Characteristics of Molecules Exhibiting Vi
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Carbohydrates are molecules containing carbon, hydrogen, and oxygen elements. They are formed as aldehyde or ketone derivatives of alcohols with multiple hydroxyl (-OH) groups, or through the hydrolysis of these derivatives. They serve as one of the body’s primary energy sources, contributing to energy needs and regulating blood glucose levels. In normal adults, 45-60% of daily energy requirements are met by carbohydrates. They are classified as simple or complex carbohydrates based on the numbe
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