Search results
Results from the WOW.Com Content Network
Heterothermy or heterothermia (from Greek ἕτερος heteros "other" and θέρμη thermē "heat") is a physiological term for animals that vary between self-regulating their body temperature, and allowing the surrounding environment to affect it.
External application of heat may cause surface burns. [13] Tissue damage to a target organ with a regional treatment will vary with what tissue is heated (e.g. brain treated directly may injure the brain, lung tissue treated directly may cause pulmonary problems). Whole body hyperthermia can cause swelling, blood clots, and bleeding. [12]
Worldwide, approximately 18% of cancer cases are related to infectious diseases. [9] [60] This proportion varies in different regions of the world from a high of 25% in Africa to less than 10% in the developed world. [9] Viruses are the usual infectious agents that cause cancer but bacteria and parasites also contribute. Infectious organisms ...
This is thought to be due to release of pyrogenic cytokines from cancer cells as well as due to spontaneous tumor necrosis (sometimes with secondary infections). [4] The cancer types most associated with fever of unknown origin include renal cell carcinoma, lymphoma, liver cancer, ovarian cancer atrial myxoma and Castleman disease. [4]
release due to a lowered activation and heightened deactivation threshold. [ 13 ] [ 14 ] The process of sequestering this excess Ca 2+ consumes large amounts of adenosine triphosphate (ATP), the main cellular energy carrier, and generates the excessive heat (hyperthermia) that is the hallmark of the disease.
[40] [9] Due to the prevalence of infection by H. pylori in middle-aged adults (74% in developing countries and 58% in developed countries in 2002 [41]), and 1% to 3% likelihood of infected individuals developing gastric cancer, [42] H. pylori-induced gastric cancer is the third highest cause of worldwide cancer mortality as of 2018.
Other rare causes of hyperthermia include thyrotoxicosis and an adrenal gland tumor, called pheochromocytoma, both of which can cause increased heat production. [2] Damage to the central nervous system from brain hemorrhage, traumatic brain injury, status epilepticus , and other kinds of injury to the hypothalamus can also cause hyperthermia.
Symptomatic features of paraneoplastic syndrome cultivate in four ways: endocrine, neurological, mucocutaneous, and hematological.The most common presentation is a fever (release of endogenous pyrogens often related to lymphokines or tissue pyrogens), but the overall picture will often include several clinical cases observed which may specifically simulate more common benign conditions.