Byssinosis leads to development of persistent symptoms and progressive decline in FEV1. Byssinosis Byssinosis, also called "brown lung disease" or "Monday fever", is an occupational lung disease caused by exposure to cotton dust in inadequately ventilated working environments. Byssinosis commonly occurs in workers who are employed in yarn and fabric manufacture industries. It is now thought that the cotton dust directly causes the disease and some believe that the causative agents are endotoxins that come from the cell walls of gram-negative bacteria that grow on the cotton. Although bacterial endotoxin is a likely cause, the absence of similar symptoms in workers
Madras motor neuron disease disease. Madras motor neuron disease (MMND) is a motor neuron disease affecting primarily lower motor neurons. It is similar to Monomelic amyotrophy and primarily affects young adults in southern India. Authors of a large case study, published in 2008, proposed that MMND be divided into two categories: spontaneously-arising MMND and Familial Madras Motor Neuron Disease (FMMND). Using this method, cases in which the disease is inherited would be categorized as FMMND, while cases that displayed no genetic linkage would be categorized as spontaneously-arising MMND. According to the same study, there is a variant form known as MMNDV, which is classified