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[17] [18] Cyanotoxins may also take part in chemical signalling. [8] Cyanotoxins are produced by cyanobacteria, a phylum of bacteria that obtain their energy through photosynthesis. The prefix cyan comes from the Greek κύανoς meaning "a dark blue substance", [19] and usually indicates any of a number of colours in the blue/green range of ...
Blue baby syndrome can refer to conditions that cause cyanosis, or blueness of the skin, in babies as a result of low oxygen levels in the blood. This term has traditionally been applied to cyanosis as a result of:. [1] Cyanotic heart disease, which is a category of congenital heart defect that results in low levels of oxygen in the blood. [2]
Toxic encephalopathy is a neurologic disorder caused by exposure to neurotoxic organic solvents such as toluene, following exposure to heavy metals such as manganese, as a side effect of melarsoprol treatment for African trypanosomiasis, adverse effects to prescription drugs, or exposure to extreme concentrations of any natural toxin such as cyanotoxins found in shellfish or freshwater ...
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to ...
Blooms of Microcystis aeruginosa did not cause increased tumor rates in groups of mice treated for up to one year. It is shown that mice given 20 μg/kg body weight 4 times a week during a period of 28 weeks developed neoplasms of the liver. [20] There results are, however, ambiguous. By the oral route, microcystin-LR displays acute toxicity in ...
1 / 40 Celebrities’ Weight Loss and Transformations: Before and After Pictures Adele shocked Instagram users with a new photo in May 2020 as she rang in her 32nd birthday in a little black dress.
Stunted growth, also known as stunting or linear growth failure, is defined as impaired growth and development manifested by low height-for-age. [1] It is a manifestation of malnutrition and can be caused by endogenous factors (such as chronic food insecurity) or exogenous factors (such as parasitic infection).
A mom says her 6-year-old’s sore throat and swollen glands were dismissed as tonsillitis or a “bug going around” — but his symptoms were actually a sign of blood cancer, leukemia.