pineal gland
Its hormone announces that night has arrived rather than causing sleep, which is why light at the wrong hour shifts the whole clock.
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Its hormone announces that night has arrived rather than causing sleep, which is why light at the wrong hour shifts the whole clock.
Read definitionThree names for one structure: the shift from gland to organ signals a different field talking, not a different piece of anatomy.
Read definitionAn orally active synthetic antifibrotic agent structurally similar to pyridine 2,4-dicarboxylate.
Read definitionA plasmid DNA cancer vaccine encoding the intracellular domain (ICD) of the HER-2/neu proto-oncogene.
Read definitionProbenecid lowers uric acid levels by blocking its reabsorption in the kidney and separately raises blood levels of certain antibiotics.
Read definitionAn old antihistamine kept in use less for allergy than for the two side effects it produces reliably: sleepiness and the settling of nausea.
Read definitionWakefulness is treated and the cause is not, which is why the drug sits alongside airway treatment rather than replacing it.
Read definitionA substance being studied in the treatment of certain types of head and neck cancer.
Read definitionA drug class named for what it does to alertness, familiar from coffee at one end and controlled prescriptions at the other.
Read definitionAn anxiety disorder that develops in reaction to physical injury or severe mental or emotional distress, such as military combat, violent assault, natural disaster, or other life-threatening events.
Read definitionRoughly a fifth of adult sleep, returning in longer and longer bouts so that it dominates the last hours before waking.
Read definitionA condition labeled refractory has not responded as expected to treatment, prompting reconsideration of the diagnosis or a change in approach.
Read definitionTolerance is not the absence of an immune response but an actively maintained one, and this is the cell that maintains it.
Read definitionDrowsiness and a bigger appetite come from strong histamine blockade, side effects that are sometimes the reason it is chosen.
Read definitionAn attempt to buy time rather than a treatment in itself, keeping blood moving while somebody works out why it stopped.
Read definitionRetin-A is a brand name for topical tretinoin, a vitamin A derivative applied to skin to treat acne and reduce signs of photoaging.
Read definitionRetinol is the storage and transport form of vitamin A, essential for vision, immune defense, and the normal growth of skin and other lining tissues.
Read definitionRetrospective describes research or review that looks backward at events, records, or outcomes that have already occurred.
Read definitionThe brand name is one of several for a single molecule, and what separates them is how fast and how long each releases it.
Read definitionSarcoma is a relatively uncommon cancer arising from connective tissues such as bone, cartilage, fat, or muscle rather than from organ linings.
Read definitionFor learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.