Dementia with Lewy bodies

From Wikipedia, the free encyclopedia
  (Redirected from Lewy body dementia)
Jump to: navigation, search
Dementia with Lewy bodies
Synonyms Lewy body dementia (LBD), diffuse Lewy body disease, cortical Lewy body disease, senile dementia of Lewy type
Lewy Koerperchen.JPG
A microscopic image of Lewy bodies
Classification and external resources
Specialty Neurology
ICD-10 G31.8
ICD-9-CM 331.82
OMIM 127750
DiseasesDB 3800
eMedicine neuro/91
MeSH D020961

Dementia with Lewy bodies (DLB) is a type of dementia that gradually worsens over time.[1][2] Additional symptoms may include fluctuations in alertness, seeing things that other people do not, slowness of movement, trouble walking, and rigidity.[1] Excessive movement during sleep and mood changes such as depression are also common.[3]

The cause is unknown. There is typically no family history among those affected. The underlying mechanism involves the buildup of Lewy bodies, clumps of alpha-synuclein protein in neurons. It is classified as a neurodegenerative disorder.[1] A diagnosis may be suspected based on symptoms, with blood tests and medical imaging done to rule out other possible causes.[4] The differential diagnosis includes Parkinson's and Alzheimer's.[1]

There is no cure for DLB. Treatments try to improve mental, psychiatric, and motor symptoms. Acetylcholinesterase inhibitors, such as donepezil, may provide some benefit. Some motor problems may improve with levodopa. Antipsychotics, even for hallucination, should generally be avoided due to side effects.[1]

DLB is the most common cause of dementia after Alzheimer's and vascular dementia. It typically begins after the age of 50.[2] About 0.1% of those over 65 are affected.[5] Males appear to be more commonly affected than females. In the late part of the disease people may depend entirely on others for their care.[2] Life expectancy following diagnosis is approximately eight years.[1] The abnormal deposits that cause the disease were discovered in 1912 by Frederic Lewy.[2]

Signs and symptoms[edit]

The presenting symptom of dementia with Lewy bodies is often cognitive dysfunction, though dementia eventually occurs in all individuals with DLB. In contrast to Alzheimer disease (AD), in which memory loss is the first symptom, those with DLB first experience impaired attention, executive function and visuospatial function, while memory is affected later.[6] These impairments present as driving difficulty, such as becoming lost, misjudging distances, or as impaired job performance. In terms of cognitive testing, individuals may have problems with figure copying as a result of visuospatial impairment, with clock-drawing due to executive function impairment, and difficulty with serial sevens as a result of impaired attention. Short-term memory and orientation to time and place remain intact in the earlier stages of the disease.[7]

While the specific symptoms in a person with DLB may vary, core features include: fluctuating cognition with great variations in attention and alertness from day to day and hour to hour, recurrent visual hallucinations (observed in 75% of people with DLB), and motor features of Parkinson's disease. Suggestive symptoms are rapid eye movement (REM)-sleep behavior disorder and abnormalities detected in PET or SPECT scans.[8] REM sleep behavior disorder (RBD) often is a symptom first recognized by the patient's caretaker. RBD includes vivid dreaming, with persistent dreams, purposeful or violent movements, and falling out of bed.[9] Benzodiazepines, anticholinergics, surgical anesthetics, some antidepressants, and over-the-counter drug (OTC) cold remedies may cause acute confusion, delusions, and hallucinations.

Tremors are less common in DLB than in Parkinson's disease.[10] Parkinsonian features may include shuffling gait, reduced arm-swing during walking, blank expression (reduced range of facial expression), stiffness of movements, ratchet-like cogwheeling movements, low speech volume, sialorrhea, and difficulty swallowing. Also, DLB patients often experience problems with orthostatic hypotension, including repeated falls, fainting, and transient loss of consciousness. Sleep-disordered breathing, a problem in multiple system atrophy, also may be a problem.[11]

One of the most critical and distinctive clinical features of the disease is hypersensitivity to neuroleptic and antiemetic medications that affect dopaminergic and cholinergic systems.[medical citation needed] In the worst cases, a patient treated with these medications could become catatonic, lose cognitive function, or develop life-threatening muscle rigidity. Some commonly used medications that should be used with great caution, if at all, for people with DLB, are chlorpromazine, haloperidol, or thioridazine.[12]

Visual hallucinations in people with DLB most commonly involve perception of people or animals that are not there, and may reflect Lewy bodies or AD pathology in the temporal lobe.[13][14] Delusions may include reduplicative paramnesia and other elaborate misperceptions or misinterpretations.[medical citation needed] These hallucinations are not necessarily disturbing, and in some cases, the person with DLB may have insight into the hallucinations and even be amused by them, or be conscious they are not real. People with DLB also may have problems with vision, including double vision,[12] and misinterpretation of what they see, for example, mistaking a pile of socks for snakes or a clothes closet for the bathroom.[15]

Cause[edit]

The major cause of DLB is not well understood yet, but a genetic link with the PARK11 gene has been described.[16] As with Alzheimer's disease and Parkinson's disease, most cases of DLB appear sporadically and DLB is not thought to have a strong hereditary link.[17] As with Alzheimer's disease, the LBD risk is heightened with inheritance of the ε4 allele of the apolipoprotein E (APOE).[18]

In DLB, loss of cholinergic (acetylcholine-producing) neurons is thought to account for degeneration of cognitive function (similar to Alzheimer's), while the death of dopaminergic (dopamine-producing) neurons appears to be responsible for degeneration of motor control (similar to Parkinson's) – in some ways, therefore, LBD resembles both disorders.

Pathophysiology[edit]

Photomicrographs of regions of substantia nigra in a patient showing Lewy bodies and Lewy neurites in various magnifications

Pathologically, DLB is characterized by the development of abnormal collections of (alpha-synuclein) protein within the cytoplasm of neurons (known as Lewy bodies). These intracellular collections of protein have similar structural features to "classical" Lewy bodies, seen subcortically in Parkinson's disease. Additionally, those affected by DLB experience a loss of dopamine-producing neurons (in the substantia nigra) in a manner similar to that seen in Parkinson's disease. A loss of acetylcholine-producing neurons (in the basal nucleus of Meynert and elsewhere) similar to that seen in Alzheimer's disease also is known to occur in those with DLB. Cerebral atrophy also occurs as the cerebral cortex degenerates. Autopsy series have revealed the pathology of DLB is often concomitant with the pathology of Alzheimer's disease. That is, when Lewy body inclusions are found in the cortex, they often co-occur with Alzheimer's disease pathology found primarily in the hippocampus, including senile plaques (deposited beta-amyloid protein), and granulovacuolar degeneration (grainy deposits within and a clear zone around hippocampal neurons). Neurofibrillary tangles (abnormally phosphorylated tau protein) are less common in DLB, although they are known to occur, and astrocyte abnormalities[vague] are also known to occur.[19][20][21][22] Presently, it is not clear whether DLB is an Alzheimer's variant or a separate disease entity.[23][24][25][26] Unlike Alzheimer's disease, the brain may appear grossly normal with no visible signs of atrophy.[27]

Diagnosis[edit]

The symptoms of DLB overlap clinically with those of Alzheimer's disease and Parkinson's disease, but are associated more commonly with the latter.[23] Because of this overlap, early DLB is often misdiagnosed. The overlap of neuropathological and presenting symptoms (cognitive, emotional, and motor) may make an accurate differential diagnosis difficult. In fact, DLB often is confused in its early stages with Alzheimer's disease and/or vascular dementia (multi-infarct dementia). However, while Alzheimer’s disease usually begins gradually, DLB frequently has a rapid or acute onset, with an especially rapid cognitive and physical decline in the first few months. Thus, DLB tends to progress more rapidly than Alzheimer’s disease.[12] Despite the difficulty, a prompt diagnosis is important because of the risks of sensitivity to certain neuroleptic (antipsychotic) medications and because appropriate treatment of symptoms may improve life for both the person with DLB and the person's caregivers.[12]

Dementia with Lewy bodies is distinguished from the dementia that sometimes occurs in Parkinson's disease by the time frame in which dementia symptoms appear relative to Parkinson symptoms.[28] Parkinson's disease with dementia (PDD) would be the diagnosis when the onset of dementia is more than a year after the onset of Parkinsonian symptoms. DLB is diagnosed when cognitive symptoms begin at the same time or within a year of Parkinson symptoms.

Management[edit]

No cure for dementia with Lewy bodies is known. Treatment may offer symptomatic benefit, but remains palliative in nature. Current treatment modalities are divided into pharmaceutical and caregiving.

Medications[edit]

Pharmaceutical management, as with Parkinson's disease, involves striking a balance between treating the motor, emotive, and cognitive symptoms. Motor symptoms appear to respond somewhat to the medications used to treat Parkinson's disease (e.g. levodopa), while cognitive issues may improve with medications for Alzheimer's disease such as donepezil. Medications used in the treatment of attention deficit/hyperactivity disorder (e.g. methylphenidate) might improve cognition or daytime sleepiness; however, medications for both Parkinson's disease and ADHD increase levels of the chemical dopamine in the brain, so increase the risk of hallucinations with those classes of pharmaceuticals.[29]

Treatment of the movement and cognitive portions of the disease may worsen hallucinations and psychosis, while treatment of hallucinations and psychosis with antipsychotics may worsen parkinsonian or ADHD symptoms in DLB, such as tremor or rigidity and lack of concentration or impulse control.[30][31] Physicians may find the use of cholinesterase inhibitors represents the treatment of choice for cognitive problems and donepezil (Aricept), rivastigmine (Exelon), and galantamine (Reminyl) may be recommended as a means to help with these problems and to slow or prevent the decline of cognitive function.[12] Reports indicate DLB may be more responsive to donepezil than Alzheimer's disease.[32] Memantine also may be useful.[33] Levocarb may help with movement problems, but in some cases, as with dopamine agonists, may tend to aggravate psychosis in people with DLB. Clonazepam may help with rapid eye movement behavior disorder; table salt or antihypotensive medications may help with fainting and other problems associated with orthostatic hypotension. Botulinum toxin injections in the parotid glands may help with sialorrhea. Other medications, especially stimulants such as the ADHD drug methylphenidate (Ritalin) and modafinil, may improve daytime alertness, but as with the antiparkinsonian drug Levocarb, antihyperkinetics such as Ritalin increase the risk of psychosis.[23] Experts advise extreme caution in the use of antipsychotic medication in people with DLB because of their sensitivity to these agents. When these medications must be used, atypical antipsychotics are preferred to typical antipsychotics; a very low dose should be tried initially and increased slowly, and patients should be carefully monitored for adverse reactions to the medications.

Due to hypersensitivity to neuroleptics, preventing DLB patients from taking these medications is important. People with DLB are at risk for neuroleptic malignant syndrome, a life-threatening illness, because of their sensitivity to these medications, especially the older typical antipsychotics, such as haloperidol. Other medications, including medications for urinary incontinence and the antihistamine medication diphenhydramine (Benadryl), also may worsen confusion.

Caregiving[edit]

Because DLB gradually renders people incapable of tending to their own needs, caregiving is very important and must be managed carefully over the course of the disease. Caring for people with DLB involves adapting the home environment, schedule, activities, and communications to accommodate declining cognitive skills and parkinsonian symptoms.[15]

People with DLB may swing dramatically between good days, with high alertness and few cognitive or movement problems, and bad days, and the level of care they require thus may vary widely and unpredictably. Sharp changes in behavior may be due to the day-to-day variability of DLB, but they also may be triggered by changes in the schedule or home environment, or by physical problems, such as constipation, dehydration, bladder infection, injuries from falls, and other problems they may not be able to convey to caregivers. Potential physical problems always should be taken into consideration when an individual with DLB becomes agitated.

As hallucinations and delusions are not dangerous or troubling to the person with DLB, it may be best for caregivers not to disabuse patients of them. Often, the best approach is benign neglect—acknowledging, but not encouraging or agreeing. Trying to talk the DLB patient out of his delusion may be frustrating to caregivers and discouraging to patients, sometimes provoking anger or dejection. When misperceptions, hallucinations, and the behaviors stemming from these become troublesome, caregivers should try to identify and eliminate environmental triggers, and perhaps, offer cues or "therapeutic white lies" to steer patients out of trouble. Physicians may prescribe low doses of atypical antipsychotics, such as quetiapine, for psychosis and agitation in DLB. A small clinical trial found that about half of DLB patients treated with low doses of quetiapine experienced a significant reduction in these symptoms. Unfortunately, several participants in the study had to discontinue treatment because of side effects, such as excessive daytime sleepiness or orthostatic hypotension.[28]

Changes in the schedule or environment, delusions, hallucinations, misperceptions, and sleep problems also may trigger behavior changes. It can help people with DLB to encourage exercise, simplify the visual environment, stick to a routine, and avoid asking too much (or too little) of them. Speaking slowly and sticking to essential information improves communication. The potential for visual misperception and hallucinations, in addition to the risk of abrupt and dramatic swings in cognition and motor impairment, should put families on alert to the dangers of driving with DLB.[18]

Epidemiology[edit]

Currently, an estimated 60 to 75 percent of diagnosed dementias are of the Alzheimer's and mixed (Alzheimer's and vascular dementia) type, 10 to 15 percent are Lewy body type, with the remaining types being of an entire spectrum of dementias, including frontotemporal lobar degeneration (Pick's disease), alcoholic dementia, pure vascular dementia, etc. Dementia with Lewy bodies tends to be under-recognized.[34] Dementia with Lewy bodies is slightly more prevalent in men than women.[18] DLB increases in prevalence with age; the mean age at presentation is 75 years.[7]

Dementia with Lewy bodies affects about one million individuals in the United States.[citation needed]

History[edit]

Frederic Lewy (1885–1950) was first to discover the abnormal protein deposits ("Lewy body inclusions") in the early 1900s.[35] Dementia with Lewy bodies was first described by Japanese psychiatrist and neuropathologist Kenji Kosaka in 1976.[36] DLB started to be diagnosed in the mid-1990s after the discovery of alpha-synuclein staining first highlighted Lewy bodies in the cortex of post mortem brains of a subset of dementia patients.[17] DLB was briefly mentioned in the DSM-IV-TR (published in 2000) under "Dementia Due to Other General Medical Conditions." It is listed in DSM-5 as "Major or Mild Neurocognitive Disorder with Lewy Bodies."

Notable cases[edit]

  • Otis Chandler, the publisher of The Los Angeles Times from 1960 to 1980, who led a large expansion of the newspaper and its ambitions, died from the disease on February 27, 2006.[37]
  • Artist Donald Featherstone, creator of the plastic pink flamingo, died from the disease in 2015.[38]
  • The actress Estelle Getty, best known for her role in the television series The Golden Girls, suffered from DLB in her later years.[39]
  • American radio and television disc jockey and host Casey Kasem died from the disease on June 15, 2014. He had been diagnosed previously with Parkinson's disease.[40]
  • Canadian ice hockey player Stan Mikita was diagnosed with the disease in January 2015.[41]
  • British author Mervyn Peake was diagnosed as having died (in 1968) from DLB in a 2003 study published in JAMA Neurology.[42]
  • Jerry Sloan, American former professional basketball player and coach[43]
  • American actor and comedian Robin Williams died by suicide on August 11, 2014. Upon autopsy, he was found to have diffuse DLB. Williams had been diagnosed with Parkinson's disease prior to his death; He also had depression, anxiety, and increasing paranoia (all symptoms of DLB).[44][45][46][47][48]
  • Canadian singer Pierre Lalonde died from Parkinson' disease on June 21, 2016. Lalonde was found to have suffered from DLB.[49][50]

References[edit]

  1. ^ a b c d e f "NINDS Dementia With Lewy Bodies Information Page". NINDS. 2 November 2015. Retrieved 3 October 2016. 
  2. ^ a b c d "The Basics of Lewy Body Dementia". NIA. 29 July 2016. Retrieved 3 October 2016. 
  3. ^ "Common Symptoms". NIA. 29 July 2016. Retrieved 3 October 2016. 
  4. ^ "Diagnosis". NIA. 29 Sep 2015. Retrieved 3 October 2016. 
  5. ^ Dickson, Dennis; Weller, Roy O. (2011). Neurodegeneration: The Molecular Pathology of Dementia and Movement Disorders (2 ed.). John Wiley & Sons. p. 224. ISBN 9781444341232. 
  6. ^ Simard M, van Reekum R, Cohen T (2000). "A review of the cognitive and behavioral symptoms in dementia with Lewy bodies". J Neuropsychiatry Clin Neurosci. 12 (4): 425–50. doi:10.1176/jnp.12.4.425. PMID 11083160. 
  7. ^ a b McKeith IG (2002). "Dementia with Lewy bodies". Br J Psychiatry. 180: 144–7. doi:10.1192/bjp.180.2.144. PMID 11823325. 
  8. ^ Lewy Body Dementia Association Inc. (2007), "What is Lewy Body Dementia", Slideshare 
  9. ^ Lewy Body Dementia Association (lbda.org)
  10. ^ Lennox, Graham; Lewy-net, Nottingham Medical School, Dementia with Lewy Bodies 
  11. ^ Presti, MF; Schmeichel, AM; Low, PA; Parisi, JE; Benarroch, EE (February 2014). "Degeneration of brainstem respiratory neurons in dementia with Lewy bodies". Sleep. 37 (2): 373–78. doi:10.5665/sleep.3418. PMC 3900631Freely accessible. PMID 24501436. 
  12. ^ a b c d e Scotland, Alzheimer; Action on Dementia, Dementia with Lewy Bodies 
  13. ^ Harding, AJ; Broe, GA; Halliday, GM (February 2002). "Visual hallucinations in Lewy body disease relate to Lewy bodies in the temporal lobe". Brai. 125(Pt 2): 391–403. PMID 11844739. 
  14. ^ Jacobson SA1, Morshed T2, Dugger BN3, Beach TG3, Hentz JG4, Adler CH4, Shill HA2, Sabbagh MN5, Belden CM3, Sue LI3, Caviness JN4, Hu C6; Arizona Parkinson's Disease Consortium. (September 2014). "Plaques and tangles as well as Lewy-type alpha-synucleinopathy are associated with formed visual hallucinations.". Parkinsonism Relat Disord. 20 (9): 1009–14. doi:10.1016/j.parkreldis.2014.06.018. PMID 25027359. 
  15. ^ a b Ferman, Tanis J.; Lewy Body Dementia Association (2007), Behavioral Challenges in Dementia with Lewy Bodies, from 'The Many Faces of Lewy Body Dementia' series at Coral Springs Medical Center, FL 
  16. ^ Bogaerts V, Engelborghs S, Kumar-Singh S, et al. (September 2007), "A novel locus for dementia with Lewy bodies: a clinically and random heterogeneous disorder", Brain, 130 (Pt 9): 2277–91, doi:10.1093/brain/awm167, PMID 17681982 
  17. ^ a b Stewart, Jonathan T.; Lewy Body Dementia Association (2007), Difficulties in Diagnosing Lewy Body Dementia, from 'The Many Faces of Lewy Body Dementia' series at Coral Springs Medical Center, FL 
  18. ^ a b c Crystal, Howard A. (2008), "Dementia with Lewy Bodies", E-Medicine from WebMD 
  19. ^ Hishikawa N, Hashizume Y, Yoshida M, Niwa J, Tanaka F, Sobue G (April 2005), "Tuft-shaped astrocytes in Lewy body disease", Acta Neuropathol, 109 (4): 373–80, doi:10.1007/s00401-004-0967-3, PMID 15668789 
  20. ^ Iseki E, Togo T, Suzuki K, Katsuse O, Marui W, de Silva R, Lees A, Yamamoto T, Kosaka K (March 2003), "Dementia with Lewy bodies from the perspective of tauopathy", Acta Neuropathol., 105 (3): 265–70, doi:10.1007/s00401-002-0644-3 (inactive 2015-01-12), PMID 12557014 
  21. ^ Marla Gearing; Michael Lynn, MS; Suzanne S. Mirra, MD (February 1999), "Neurofibrillary Pathology in Alzheimer Disease With Lewy Bodies", Archives of Neurology, 56 (2): 203–8, doi:10.1001/archneur.56.2.203, PMID 10025425 
  22. ^ Fujishiro H, Ferman TJ, Boeve BF, Smith GE, Graff-Radford NR, Uitti RJ, Wszolek ZK, Knopman DS, Petersen RC, Parisi JE, Dickson DW (July 2008), "Validation of the neuropathologic criteria of the third consortium for dementia with Lewy bodies for prospectively diagnosed cases.", J Neuropathol Exp Neurol., 67 (7): 649–56, doi:10.1097/NEN.0b013e31817d7a1d, PMC 2745052Freely accessible, PMID 18596548 
  23. ^ a b c Van Gerpen, Jay A.; Lewy Body Dementia Association (2007), New Trends in Lewy Body Dementia, from 'The Many Faces of Lewy Body Dementia' series at Coral Springs Medical Center, FL 
  24. ^ Uchikado H, Lin WL, DeLucia MW, Dickson DW Uchikado, H; Lin, WL; Delucia, MW; Dickson, DW (2006), "Alzheimer disease with amygdala Lewy bodies: a distinct form of alpha-synucleinopathy", Journal of neuropathology and experimental neurology, 65 (7): 685–97, doi:10.1097/01.jnen.0000225908.90052.07, PMID 16825955 
  25. ^ Kotzbauer PT, Trojanowsk JQ, Lee VM (2001), "Lewy body pathology in Alzheimer's disease", Journal of molecular neuroscience : MN, 17 (2): 225–32, doi:10.1385/JMN:17:2:225, PMID 11816795 
  26. ^ "Dementia". A-Z Library. University of Oklahoma. Archived from the original on 2011-07-15. Retrieved 2014-06-10. 
  27. ^ Love, S. (2005). "Neuropathological investigation of dementia: a guide for neurologists". Journal of Neurology, Neurosurgery & Psychiatry. bmj.com. 76 (5): v8–v14. doi:10.1136/jnnp.2005.080754. Retrieved 2014-06-10. 
  28. ^ a b Weintraub, Daniel; Hurtig, Howard I. (2007), "Presentation and Management of Psychosis in Parkinson's Disease and Dementia with Lewy Bodies", American Journal of Psychiatry, 164 (10): 1491–1498, doi:10.1176/appi.ajp.2007.07040715, PMC 2137166Freely accessible, PMID 17898337 
  29. ^ Carey RJ, Pinheiro-Carrera M, Dai H, Tomaz C, Huston JP (2014-05-14). "L-DOPA and psychosis:". Biological Psychiatry. NIH.gov. 38 (10): 669–76. doi:10.1016/0006-3223(94)00378-5. PMID 8555378. 
  30. ^ "Secondary parkinsonism". MedlinePlus Medical Encyclopedia. NIH.gov. Retrieved 2014-06-10. 
  31. ^ Ellul, J (2006). "The effects of commonly prescribed drugs in patients with Alzheimer's disease on the rate of deterioration". Journal of Neurology, Neurosurgery and Psychiatry. 78 (3): 233–239. doi:10.1136/jnnp.2006.104034 (inactive 2015-01-12). 
  32. ^ Neef, Doug; Walling, Anne D (2006-04-01), "Dementia with Lewy Bodies: an Emerging Disease", American Family Physician, 73 (7): 1223–1229, PMID 16623209, retrieved 2010-01-29. 
  33. ^ Aarsland, D; Ballard, C; Walker, Z; Bostrom, F; Alves, G; Kossakowski, K; Leroi, I; Pozo-Rodriguez, F; et al. (2009), "Memantine in patients with Parkinson's disease dementia or dementia with Lewy bodies: a double-blind, placebo-controlled, multicentre trial", Lancet neurology, 8 (7): 613–8, doi:10.1016/S1474-4422(09)70146-2, PMID 19520613 
  34. ^ Walker Z, Possin KL, Boeve BF, Aarsland D (2015). "Lewy body dementias". Lancet. 386 (10004): 1683–97. doi:10.1016/S0140-6736(15)00462-6. PMID 26595642. 
  35. ^ Lewy body dementia at Who Named It?
  36. ^ Kosaka K, Oyanagi S, Matsushita M, Hori A (1976), "Presenile dementia with Alzheimer-, Pick- and Lewy-body changes", Acta Neuropathol, 36 (3): 221–233, doi:10.1007/bf00685366, PMID 188300 
  37. ^ Shaw, David; Mitchell Landsberg (February 27, 2006). "L.A. Icon Otis Chandler Dies at 78". The Los Angeles Times. Retrieved July 23, 2008. 
  38. ^ "Don Featherstone Obituary - Miami, FL | the Miami Herald". Retrieved April 7, 2016. 
  39. ^ Carlson, Michael (July 24, 2008). "Obituary: Estelle Getty". theguardian.com. Retrieved October 13, 2013. 
  40. ^ Kasem, Julie; Kasem, Kerri; Martin, Troy (2014-05-13). "Interview with Julie and Kerri Kasem". CNN Tonight (Interview). Interview with Bill Weir. CNN.  Comments about disease aired around 9:41 pm EDT; comments about purpose at the end of the interview.
  41. ^ Kuc, Chris (15 June 2015). "For Stan Mikita, all the Blackhawks memories are gone". Chicago Tribune. Retrieved 15 June 2015. 
  42. ^ Demetrios J. Sahlas (2003). "Dementia With Lewy Bodies and the Neurobehavioral Decline of Mervyn Peake". Arch. Neurol. 60 (6): 889. doi:10.1001/archneur.60.6.889. 
  43. ^ ESPN.com news services (April 6, 2016). "Hall of Fame coach Jerry Sloan battling Parkinson's disease, Lewy body dementia". espn.go.com. Retrieved April 7, 2016. 
  44. ^ "Robin Williams coroner's report finds no illegal drugs or alcohol in system". New York Daily News. Retrieved 2014-11-10. 
  45. ^ "Robin Williams - Dementia Hallucinations Triggered Suicide". TMZ. Retrieved 2014-11-11. 
  46. ^ "Robin Williams' widow blames Lewy body dementia - CNN.com". CNN. Retrieved 2015-11-04. 
  47. ^ Susan Schneider Williams (2016-09-27). "The terrorist inside my husband's brain - neurology.org". Neurology. doi:10.1212/WNL.0000000000003162. Retrieved 2016-10-01. 
  48. ^ McKeith, Ian. "Robin Williams had dementia with Lewy Bodies -- so, what is it and why has it been eclipsed by Alzheimer's?". The Conversation. Retrieved 2016-11-01. 
  49. ^ "Pierre Lalonde est décédé à l'âge de 75 ans". Le Journal de Montréal. Retrieved 2016-06-22. 
  50. ^ "Pierre Lalonde souffrait aussi de la démence à corps de Lewy". Le Journal de Montréal. Retrieved 2016-06-22. 

External links[edit]