Biology of Disease by Nessar Ahmed, Maureen Dawson, Chris Smith, Ed Wood

By Nessar Ahmed, Maureen Dawson, Chris Smith, Ed Wood

Biology of affliction describes the biology of a few of the human issues and ailment which are encountered in a medical atmosphere. it's designed for first and moment 12 months scholars in biomedical technological know-how courses and also will be a powerful reference for future health technological know-how pros in addition to being helpful to scholars starting scientific tuition. genuine situations are used to demonstrate the significance of biology in figuring out the motives of ailments, in addition to in analysis and remedy.

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With some diseases, especially some cancers, patients may go through a period of good health with a reduction or disappearance of the symptoms and the disease is said to be in remission. However, a relapse may occur with a return of the disease symptoms following this period of apparent recovery. Diseases with a tendency towards remission and relapse include acute lymphoblastic leukemia and ulcerative colitis (Chapters 17 and 11). 5 Characteristics of some diseases showing relationship between etiology, pathogenesis, morphological and functional features and complications and sequelae.

The term syndrome is often applied to describe certain diseases that are characterized by multiple abnormalities that form a distinct clinical picture. For example, Cushing’s syndrome (Chapter 7) occurs when an excess of the hormone cortisol produces a combination of clinical features that include hirsutism (excessive growth of facial hair), obesity, hypertension and characteristic facial and body features. Some diseases frequently present with complications, that is, new or separate processes secondary to, and a consequence of, the initial disease.

Reflux esophagitis A back flow of gastric juice from the stomach into the lower end of the esophagus. Regurgitation An imperfect closing of the heart valves leading to leakage and backflow (compare with stenosis). Relapse A relapse occurs when, following a period of apparent recovery, the symptoms of the disease return. Programmed theory of aging Suggests that each species has an inbuilt biological clock and that aging is a genetically programmed series of events. Remission A period of good health with a reduction or disappearance of symptoms following a disease; may be permanent or temporary.

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