Define briefly about the manganese toxicity, Biology

Assignment Help:

Define Briefly about the Manganese Toxicity?

Manganese is considered least toxic of the trace minerals through oral intake. However, some people may be at a risk to develop toxicity. For example, individuals with impaired biliary and/or hepatic dysfunction are more susceptible, as dietary Mil is cleared by the liver. Similarly, total parenteral nutrition (TPN) bypasses the normal homeostatic mechanisms of the liver and gut. Therefore, patients receiving long-term parenteral nutrition are also at a risk.

 Manganese toxicity, however, occurs primarily in industrial workers exposed to excess airborne Mn such as in case of industries manufacturing steel, alloys and iron products. Airborne Mn is also contributed by the Mn containing antiknock compounds in gasoline fuel. Majority of Mn toxicity cases have been reported from individuals exposed to airborne Mn in industrial areas in excess of 5 mg per cubic meter (m3). Mn toxicity is a serious health hazard; in its severe form it results in serious psychiatric symptoms such as hyperirritability, violent acts, hallucinations and poor coordination. Several abnormalities occur in the central nervous system, the morphological lesions being similar to Parkinson's disease. In workers exposed to less than 1 mg/m3, impaired motor coordination and impaired memory have been reported. The symptoms of Mn toxicity are apparently due to excessive tissue oxidative damage by Mn.


Related Discussions:- Define briefly about the manganese toxicity

How are membranes classified, Concerning their permeability how are membran...

Concerning their permeability how are membranes classified? Membranes can be divided as impermeable, permeable, semipermeable or selectively permeable. An impermeable membra

Ozone layer play in the evolution of early life on earth, What role did the...

What role did the appearance of the ozone layer play in the evolution of early life on Earth? Ultraviolet radiation from the sun damages DNA, but the development of the ozone l

Absorption of food - zoology, ABSORPTIO N OF FOOD Absorption from Mo...

ABSORPTIO N OF FOOD Absorption from Mouth Here negligible tobacco, alkohal and some medicines as isoprenailne glycerol tri nitrite is absorbed. Absorptio n from Sto

Excretion in earthworm, EXCRETIO N IN EARTHWORM - Main organs are neph...

EXCRETIO N IN EARTHWORM - Main organs are nephredia, pharyngeal, integumentary & septed nephredia. Main are septal nephredia situated on septa.Nephrostome present. Body

What are the major types of lipids, Q. What are the major types of lipids? ...

Q. What are the major types of lipids? The main types of lipids are phospholipids, triglycerides (fats and oils), waxes and steroids.

Extracellular aging, Extracellular Aging The basic components of extra...

Extracellular Aging The basic components of extracellular space are mucopolysaccharides and fibrous proteins, particularly collagen and elastin. These proteins are synthesised

State the young''s trichromatic theory, Young's Trichromatic Theory Ac...

Young's Trichromatic Theory According to Young's theory, three types of cones exist, each sensitive to a particular pigment-rythrolabe (red), chlorolabe (green), and cyanolabe

Bovine spongiform encephalopathy, Bovine spongiform encephalopathy The ...

Bovine spongiform encephalopathy The bovine transmissible spongiform encephalopathy (BSE), known as 'mad cow disease'-first noticed in Great Britain in 1986, is similar to scra

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd