Summative II Disease Word Scramble
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Question | Answer |
Parkinson's Disease | Deficiency: loss of dopamine in substantia nigra of brain through monoamine oxidase Symptoms: shaking, rigidity, difficulty moving Treatment: L-dopa, dopamine agonists |
Ischemia-Reperfusion Injury | Cause: electron donation to oxygen to form superoxide is increased upon reintroduction to oxygen, causing excess ROS (commonly seen during cardiovascular surgery, coronary occlusion, transplantation) |
Hyperoxia Toxicity | Chest pain, cough and alveolar damage within hours of 100% oxygen exposure; caused by over production of ROS in lungs |
Radiation Therapy | RT destroys tumor tissue by producing a directed flux of hydroxyl radicals and organic radicals |
Down’s Syndrome | Deficiency: three copies of chromosome 21 (trisomy 21) |
Edward’s Syndrome | Deficiency: trisomy 18; problems with mitotic spindle checkpoint can lead to problems in Meiosis II or Mitosis and leads to cancer |
Cancer | Deficiency: defefcts in tumor suppressor genes and/or oncoproteins cause inappropriate cell growth by subverting growth factor pathway and passing through cell cycle checkpoints (DNA hypomethylation) |
Schizophrenia | Deficiency: DNMT1 gene in GABA-ergic interneurons is over expressed; Reeling gene is hypermethylated (also occurs in psychosis and bipolar disorder) |
Rett syndrome | Deficiency: methylated DNA-binding protein (MECP2) on X-chromosome mutated, leading to abnormal gene expression Symptoms: girls display reduced brain growth and mental disabilities |
Rubinstein-Taybi syndrome | Deficiency: mutation in histone acetyltransferase, leading to hypoacetylation Symptoms: distinctive faces, mental retardation, broad thumbs, broad great toes |
Spinocerebellar ataxia type-7 (SCA7) | Deficiency: mutant SCA7 protein disrupts histone acetylation and expression of certain genes for brain and retinal function Symptoms: ataxia, blindness, death |
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