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

Vacuoles, VACUOLES They are of 4 types - 1.       Sap Vacuole - ...

VACUOLES They are of 4 types - 1.       Sap Vacuole - Outer membrane of sap vacuole is called T onoplast . Sap vacuole contains amino sugars, carotenoids, proteins, m

What are the genotypes of all individuals, 1. In cattle, the polled conditi...

1. In cattle, the polled condition (H) is dominant to the horned condition (h). A cross between an individual with red coat (R) and white coat (W) results in roan (RW). A polled, r

Genetics and molecular biology into the darwinism, How does the synthetic t...

How does the synthetic theory of evolution incorporate knowledge from Genetics and Molecular Biology into the darwinism? Today it is known as that variation of inherited charac

How membrane voltage increases, Consider an axon of a neuron. At time=t1, i...

Consider an axon of a neuron. At time=t1, its voltage is at threshold for an action potential; at time=t2, its voltage is at 0 millivolts prior to the peak of that action potential

What is the neuromuscular synapse, What is the neuromuscular synapse? N...

What is the neuromuscular synapse? Neuromuscular synapse is the structure by which the neural impulse passes from the axon of a motor neuron to the muscle cell. This structure

Define nutrient requirements during emergencies, Define Nutrient Requiremen...

Define Nutrient Requirements during Emergencies? The nutritional requirements of the people do change during conditions of unforeseen stress and/or any calamity. Certain recomm

Explain the effect of deficiency of pyridoxine, Explain the effect of Defic...

Explain the effect of Deficiency of pyridoxine? A deficiency of vitamin B6 alone is uncommon because it usually occurs in association with a deficit in other B-complex vitamin

Coelenterata, mode of digestion in coelenterata

mode of digestion in coelenterata

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