Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Input: Consider Input: Restless legs syndrome is a neurological disorder characterized by an urgency to move the legs during periods of rest. Data from a variety of sources provide a compelling argument that the amount of iron in the brain is lower in individuals with restless legs syndrome compared with neurologically normal individuals. Moreover, a significant percentage of patients with restless legs syndrome are responsive to intravenous iron therapy. The mechanism underlying the decreased iron concentrations in restless legs syndrome brains is unknown. We hypothesize that the source of the brain iron deficit is at the blood-brain interface. Thus we analysed the expression of iron management proteins in the epithelial cells of the choroid plexus and the brain microvasculature in post-mortem tissues. The choroid plexus, obtained at autopsy, from 18 neurologically normal controls and 14 individuals who had primary restless legs syndrome was subjected to histochemical staining for iron and immunostaining for iron management proteins. Iron and heavy chain ferritin staining was reduced in the epithelial cells of choroid plexus in restless legs syndrome. Divalent metal transporter, ferroportin, transferrin and its receptor were upregulated in the choroid plexus in restless legs syndrome. Microvessels were isolated from the motor cortex of 11 restless legs syndrome and 14 control brains obtained at autopsy and quantitative immunoblot analyses was performed. Expression of heavy chain ferritin, transferrin and its receptor in the microvessels from restless legs syndrome was significantly decreased compared with the controls but divalent metal protein 1, ferroportin, prohepcidin, mitochondrial ferritin and light-chain ferritin remained unchanged. The presence of an iron regulatory protein was demonstrated in the brain microvasculature and the activity of this protein is decreased in restless legs syndrome; a finding similar to our earlier report in neuromelanin cells from the substantia nigra of restless legs syndrome brains. This study reveals that there are alterations in the iron management protein profile in restless legs syndrome compared with controls at the site of blood-brain interface suggesting fundamental differences in brain iron acquisition in individuals with restless legs syndrome. Furthermore, the decrease in transferrin receptor expression in the microvasculature in the presence of relative brain iron deficiency reported in restless legs syndrome brains may underlie the problems associated with brain iron acquisition in restless legs syndrome. The consistent finding of loss of iron regulatory protein activity in restless legs syndrome brain tissue further implicates this protein as a factor in the underlying cause of the iron deficiency in the restless legs syndrome brain. The data herein provide evidence for regulation of iron uptake and storage within brain microvessels that challenge the existing paradigm that the blood-brain barrier is merely a transport system.

Output: Which deficiency is the cause of restless leg syndrome?


Input: Consider Input: Lewy bodies and coarse Lewy neurites are the pathological hallmarks of degenerating neurons in the brains of patients suffering from Parkinson's disease (PD). Recently, the presynaptic protein alpha-synuclein was shown to be a major component of Lewy bodies and Lewy neurites. This study demonstrates for the first time that extensive and thin alpha-synuclein-immunoreactive inclusions are present in the axonal processes of neurons.

Output: Which is the primary protein component of Lewy bodies?


Input: Consider Input: Chettinad Palace in Karaikudi seen in the film. Natesan (Cheran) works as an engineer in electricity board in Karaikudi and leads a joint family with more 30 of his relatives living in the same house. On the other hand, Visalakshi aka Sala (Sneha) is the only daughter to her parents and she is about to complete her college education in Karaikudi. Sala feels bored while being alone and she always prefers to have her friends surrounding her. Sala's parents start searching for a groom and they get a reference for Natesan. Sala and her family meet Natesan's family in a function. Sala is surprised to see so many people living as a joint family together and she is very much impressed and agrees for the wedding. Natesan and Sala get married. Sala loves being accompanied by all the relatives in Natesan's home. When Sala and Natesan go on a honeymoon, Sala purchases gifts for everyone in the family. All the family members are also impressed seeing Sala. But Natesan feels sad that he does not get private time to spend with his wife as they are always surrounded by relatives. Now Natesan gets transferred to a hill station named Attakatti, near Pollachi. Natesan feels happy as he believes this will provide him time to spend with Sala. Although Sala feels sad leaving all her relatives, she also goes with Natesan to the hill station. Over there in the hill station, Sala feels lonely and gets bored and she longs for the life she had in Karaikudi. Their house is located in a remote place with no neighbours and friends. Natesan also gets busy with work and has very little time to spend with his wife. Slowly Sala gets psychologically disturbed due to loneliness and she behaves as if the house is filled with so many people. Also, she repairs the fan, lights etc. purposefully in their home so that the nearby electrician (Kanja Karuppu) comes to fix them and at least she gets a chance to speak to someone. She also starts recording all the sounds around her such as birds chirping, etc. and listens to the recordings when alone. One day, she records a neighbour's child's laughter sound following which the child faints. Sala is scared but the child is saved. Doctor Ramalingam (Jayaram) sees Sala and understands that she is suffering from a disorder and warns Natesan. But Natesan does not take it seriously. One day Sala consumes too much of sleeping pills to come out of her depression. But Natesan spots her lying in bed and rushes her to the hospital. Sala is saved. Ramalingam explains the disorder to Natesan and mentions that the best cure for her would be to lead a happy life surrounded by relatives. Natesan agrees and moves back to Karaikudi. The movie ends showing Natesan and Sala leading a happy life again.


Output: who experiences a love and affection of each?