James Prkinson's Disease Case Study

Improved Essays
PARKINSON’S DISEASE
PD is irreversible, progressive disease, described by James Prkinson’s in 1817 in “An essay on the Shaking Palsy”. The incidence of PD increases with age, more than 2.6% population of age 85-90 are affected, some rare cases individuals with age group 60 above are affected approximately 0.6% (54). Majority are idiopathic. Signs include difficulty in movement, tremor, rigidity. Pathologically, PD affects a part of substantia nigra. Patients those who are suffering from PD are diagnosed during PM, histopathological examination for loss of pigmented neurons and presence of lewy bodies in neurons. Immunostaining for proteins – ubiquitin and alpha – synuclein facilitate the studies on lewy bodies(55).
Arvid carlsson revealed that dopamine, a neurotransmitter in neurons of substantia nigra. L – dopa drug is used to treat the deficiency of dopamine in the substantia nigra. 70% of the dopamine containing neurons will be lost causing dopamine deficiency and turns the tissue black. Major regions of brain are affected, lower region of the brain stem known as medulla oblongata, which moves up through the basal ganglia into cortical areas (56).
Dopamine metabolites increase the reactive oxygen level that
…show more content…
PET scans of brain also shows abnormalities of brain, in the globus pallidus and F-dopa (59). As the disease is related to deficit in dopamine production, base line treatment is supplying the sufficient amount of dopamine through medications. Dopamine cannot cross blood – brain barrier whereas L – dopa can cross. Other drugs such as monoamine oxidase B inhibitors are used but standard treatment is with L – dopa. There is an approach that is 5 years behind the analogous putative therapy, which encountered difficulties due to the immunization of alpha – synuclein transgenic mouse to produce anti-synuclein antibodies, which helps in reducing the deposition of alpha – synuclein in neuronal

Related Documents

  • Improved Essays

    The nucleus accumbens is the release sight for the neurotransmitter dopamine, a nature chemical in the central nervous system. When released in standard quantities, it assists in critical brain functions. Like most neurotransmitters, dopaminergic signaling entails an equilibrium between dopamine release and the re-uptake by presynaptic nerve terminal. Under specific circumstances, a stimulus will promote the release of dopamine into the synapse. Dopamine transporters will then remove the dopamine from the synapse so that vesicular monoamine transporters can store the neurotransmitter into vesicles, release it, and protect it from oxidation (Riddle et al, 2006).…

    • 585 Words
    • 3 Pages
    Improved Essays
  • Superior Essays

    Gaucher’s disease if you haven’t heard of it already is a metabolic disorder one of the most common for lysosomal diseases and it is inherited. It can also be carried and not known by the individual, a carrier only has a single gene mutation that is associated with the disorder. In order actually have Gaucher’s diseases an individual must have two mutations in the GBA gene; one from each parent. Gaucher’s is when the metabolism and storage of fats is irregular; this can be quite harmful due to the fact that there is a deficiency of the enzyme glucocerebroside (GBA) which is located on chromosome 1q21 and encompasses 11 exons. Which an individual’s body will not break down or store the fatty substances correctly.…

    • 1778 Words
    • 8 Pages
    Superior Essays
  • Improved Essays

    The protein Alpha-Synuclein is found in the healthy part of the brain. Scientists also say that Alpha-Synuclein plays a big role with getting Parkinson’s disease. Alpha -Synuclein has a symbol of SNCA gene, which provides instructions to make the small protein. The SNCA gene belongs to a family of genes called PARK (Parkinson disease) (Does the SNCA gene share characteristics with other genes ?).…

    • 317 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    The symptomology is characterized by delirious thoughts, agitation, acidosis, and also a life threat of hyper adrenergic autonomic dysfunction (Chan, 352). Current studies show the symptomology shows that excited delirium is caused by a deregulated dopamine transportation method by specific sympathomimetic (Davis, 5). With the dysfunctional regulation of dopamine, the transportation system leads to an increased amount of dopamine to be released at the synaptic cleft (Davis, 5). Within the hypothalamus, dopamine receptors are responsible for overall thermo regulation, thus, causing a rapid increase in overall body temperature (Davis, 5). Based on Trevor’s symptomology, hyper dopaminergic release will result in hyperthermia and a dysfunctional hypothalamus, subsequently causing an excessive release of catecholamine’s to be released and furthering acute stress on the heart, causing cardiomyopathy (Davis,…

    • 1330 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    Misfolded Protein

    • 415 Words
    • 2 Pages

    throughout life, their aggregates gradually accumulate as we age. These aggregates form distinct and observable structures in the brain which generally known as amyloid deposits in the brain. Furthermore, some form of mutation increase the chance of misfolding in proteins which is the case in the genetic or familial case of NDs [22]. Though the mechanism is not clear, it has been proven that deposits of misfolded proteins are known to be neurotoxic and able to cause apoptosis in neuronal cells.…

    • 415 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    Dopamine is the main reward pathway as well as being a hormone it’s the main factor that impacts an individuals feeling of pleasure. However, when taking a drug this can work in place of the chemical neurotransmitter, therefore interfering with the balance of this chemical to make it imbalanced and therefore disrupting behavior of the typical neural communication. An example of this is the use of conventional antipsychotic drugs in the treatment of schizophrenia, these bind to dopamine receptors but don’t actually stimulate them and consequently because of this these are known as antagonists, this therefore has the effect that it reduces stimulation of dopamine particularly in D2 receptors; doing this reduces the amount of dopamine transmitted to the postsynaptic neuron decreasing and by doing this it therefore stops the brain receiving this excess of dopamine delaying the effects which is thought to cause schizophrenia when there is an excess eliminating the symptoms (Wiley & Sons,…

    • 1449 Words
    • 6 Pages
    Improved Essays
  • Decent Essays

    Alpha-synuclein is the protein in my second DNA sequence. Alpha-synuclein’s function in a healthy brain is unknown , but it is known that this protein causes Parkinson’s disease or PD. Parkinson’s disease is a disorder of the nervous system which causes one to not be able to control their normal movements. The way this works is that there is a malfunction and death of neurons in the brain , specifically substantia nigra, which is the movement control center in the brain. These dying neurons produce dopamine and as time goes on the amount dispersed decreases, therefore causing Parkinson’s disease.…

    • 272 Words
    • 2 Pages
    Decent Essays
  • Improved Essays

    JNK Biochemistry

    • 993 Words
    • 4 Pages

    Another study has confirmed reduced phosphorylation of PKB at both Thr308 and Ser473 in substantia nigra dopaminergic neurons in PD patients (Malagelada et al., 2008). It suggests that reduced phosphorylation of PKB is restricted to dopaminergic neurons as non-neuromelanin containing neurons of the midbrain expressed similar levels of PKB and phosphorylated PKB in both control and PD…

    • 993 Words
    • 4 Pages
    Improved Essays
  • Superior Essays

    "Parkinson's Disease." Harvard Medical School Health Topics A-z. Boston: Harvard Health Publications, 2013. Credo Reference. Web.…

    • 1031 Words
    • 5 Pages
    Superior Essays
  • Improved Essays

    Late onset Alzheimer’s disease (LOAD) is the most common neurodegenerative disorder characterized by progressive loss of cognitive function that interferes with daily activities [38](Holtzman et al., 2011). The neuropathology involves neurofibrillary tangles, composed of hyperphosphorylated tau proteins, and β-amyloid (Aβ) plaques which obstruct proper synapse function and lead to neuronal cell loss and atrophy [5](Ballard et al., 2011). The most crucial risk factor is age; the risk doubles every five years after the age of 65, with higher prevalence in females than males [5;37](Hirtz et al., 2007;Ballard et al., 2011). There is also a strong genetic component that indicates increased risk of dementia in individuals expressing the E4 isoform…

    • 856 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Synaptic Dysfunction

    • 631 Words
    • 3 Pages

    Synaptic dysfunction: Studies in a number of the PARK2 knockout lines suggest the presynaptic dopamine transmission is perturbed. In the Park2tm1Shn knockout line, the evoked dopamine signal of neurons was reduced and could not be restored with DAT inhibition (Goldberg et al., 2003). The normal function of Parkin in dopaminergic synaptic transmission is been explored and found that the signal is lower in parkin-/- mice relative to the control, indicating that loss of Parkin indeed decreased DA release. Parkin plays a crucial role in the nigrostriatal circuit that is found to be affected in PD. Physiological analysis for the nigrostriatal circuit in parkin-/-mice point towards a marked impairment in striatal synaptic plasticity(Tohru Kitada et al., 2009).…

    • 631 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Parkinson's Disease

    • 654 Words
    • 3 Pages

    The diagnosis that patient MB presents with is Parkinson’s disease (PD). The features that MB presents with are resting tremors, postural instability, rigidity, and a mask-like face. MB also displays with some symptoms of insomnia, anxiety, and depression. The Figure above shows the clinical features that are seen with PD patients. (HumanBiology.com) 7 Pathophysiology: Parkinson’s Disease is a disease of the extrapyramidal system.…

    • 654 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    About Parkinson’s Disease Psychosis Parkinson’s Disease (PD) is a neurodegenerative movement disorder, affecting over six million people worldwide. The pathological finding associated with PD is the degeneration of dopaminergic neurons of the pars compacta of the substantia nigra leading to the depletion of dopamine in the striatum. Parkinson’s disease psychosis (PDP) is a common symptom of PD but is difficult to distinguish. Although it can occur at any stage of the illness, it is a particularly salient issue for patients who are in the late stages of PD and have been unremittingly treated with dopaminergic medication. The exact pathophysiology of PDP remains unknown.…

    • 334 Words
    • 2 Pages
    Improved Essays
  • Superior Essays

    In 1817 James Parkinson introduced Parkinson’s disease after having six patients experiencing involuntary unsteady motions that didn’t related to other disease out at the time. (Lees et al 2009). Parkinson’s disease affects the central nervous system and it leads to severe troubles with body motions. Symptoms include shaking, stiffness, slowed body movements, unstable posture and trouble walking (Singh and Pillay 2007). Now 200 years later this disease is the most common movement disorder in the world affecting the older population usually those around the age of 60.…

    • 1427 Words
    • 6 Pages
    Superior Essays
  • Superior Essays

    Though, there is an up to date testing concerning imaging scans many cannot afford such medical practice. The image scan performs brain scanning and is able to measure dopamine levels in area of the head. Even now, an inexpensive method is yet to be discovered and researchers are working extensively to work out an…

    • 1174 Words
    • 5 Pages
    Superior Essays