Causes and symptoms. Electric shocks are caused by the passage of electric current through the body. They are caused in infants and young children by their playing with electrical appliances or cords and in older children by mischievous exploration of electrical systems or use of faulty electrical appliances or tools.
What is parkinsons diseases? Parkinsonâs occurs when certain nerve cells (neurons) in a part of the brain called the substantia nigra die or become impaired. Normally, these cells produce a vital chemicâ¦al known as dopamine. Dopamine allows smooth, coordinated function of the body's muscles and movement.
Parkinson's disease is a common neurodegenerative disorder characterized by the progressive loss of the dopaminergic neurons in the substantia nigra pars compacta.The loss of these neurons is associated with a glial response composed mainly of activated microglial cells and, to a lesser extent, of reactive astrocytes.This glial response may be the source of trophic factors and can protect against reactive oxygen species and glutamate.he role of glial cells in Parkinson's disease. Vila M, Jackson-Lewis V, Guegan GuÃ©gan, C WU, Dc Teismann, P CHOI, Dk Tieu, K Przedborski. s