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Early-Onset Autosomal Dominant Alzheimer Disease

Familial Alzheimer Disease


  • (Val717Ile) substitution, which was present in 12 subjects from 11 families. Clinical features were typical of AD with amnestic presentation. The c.2137G A, p.(Ala713Thr) mutation was found in 7 patients from 5 unrelated families.[journals.plos.org]
  • Presently two of them are mute incontinent and bedridden with fixed flexion deformities of limbs. Seizures are also present in one patient.[annalsofneurosciences.org]
  • The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.[orpha.net]
  • Three PSEN1 mutations (P264L, E280G, and F386S) were associated with an atypical presentation including spastic paraparesis.[jmg.bmj.com]
  • That’s why, often, caregiving duties also fall on the children of these families, as demonstrated by Anne in the story above. Individuals with early-onset Alzheimer’s and their caregivers face a unique set of challenges.[providencefremont.com]
  • Or does such a judgment fall beyond the purview of Mrs.[journalofethics.ama-assn.org]
  • Any variants that fall outside these regions are not analyzed. Any specific limitations in the analysis of these genes are also listed in the table below.[invitae.com]
  • If they were positive, would she have to worry their care might eventually fall to her? Their parents don't want to know if their children test positive. Tyler's dad once told him if they had known what would happen, they may not have had children.[azcentral.com]
  • He has the sense that he should be making the most of every moment, and sometimes he falls into self-criticism. “Sometimes I feel like I’m going nowhere fast,” he said.[tucson.atavist.com]


  • Standard Medical Workup for Alzheimer's Disease. Alzheimer Research Forum [On-line information]. Available online at through . Family Caregiver Alliance. Fact Sheet: Alzheimer's Disease [On-line information]. Available online at through .[labtestsonline.it]


  • The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.[orpha.net]
  • At this time, there is no treatment to slow down the disease.[alzforum.org]
  • Despite progress made in understanding the pathogenesis, the development of curative treatment in Alzheimer's disease remains difficult.[annalsofneurosciences.org]
  • Treatment The progression of Alzheimer’s disease symptoms can be slowed but not stopped.[mercyhealth.com]


  • Diagnosis of this entity is important to provide correct prognosis and adequate care to patient and to recognize at risk family members by genetic testing after proper counseling.[annalsofneurosciences.org]
  • Prognosis The disease is progressive; patients have deterioration in their behavior, cognition, and ability to perform activities of daily living. At an advanced stage, patients are confined to bed.[orpha.net]
  • Prognosis - Alzheimer disease type 4 course of disease can continue for up to 25 years Treatment - Alzheimer disease type 4 There is no cure for AD. Treatment is supportive and based on the signs and symptoms present in each person.[checkorphan.org]
  • Last updated: Dec 17, 2018 at 16:40 Name masatoyo nishizawa Published Papers Plain Text 1 2 3 4 [Clinical features of poor-prognosis patients with adult bacterial meningitis] Shimohata T, Yanagawa K, Tanaka K, Nishizawa M Rinsho shinkeigaku Clinical neurology[researchmap.jp]


  • Etiology EOAD is the consequence of either PSEN1 mutations (69%), APP mutations (13%), or APP duplication (7,5%), and exceptionally of PSEN2 mutations (2%).[orpha.net]
  • There may be a further genetic factor involved in the etiology of autosomal dominant early onset AD. Received February 26, 2002. Accepted September 26, 2002.[neurology.org]
  • A diagnosis of possible AD dementia is made when the patient meets most of the AD criteria, but has an atypical course or an etiologically mixed presentation. 6 This may consist of an atypical onset (eg, sudden onset) or atypical progression.[bcidaho.com]


  • Summary Epidemiology EOAD represents less than 1% of all cases of AD. Clinical description Initial findings of EOAD are mainly disorders of episodic memory or changes in behavior.[orpha.net]
  • Experts from psychiatry, genetic epidemiology, molecular genetics, genetic counseling, cognitive psychology, and ethics focus on issues that have received little attention elsewhere yet are of increasing importance to clinicians.[books.google.com]
  • […] are very low, and large epidemiology studies of dementia rarely capture people below 65.[alzforum.org]
  • Epidemiology of Parkinson's disease. Dis Mon. 2007;53(4):200–205 2 Zhang ZX, Roman GC. Worldwide occurrence of Parkinson's disease: an updated review.[colombiamedica.univalle.edu.co]
Sex distribution
Age distribution


  • Molecular biology and pathophysiological aspects of plasma cholestery ester transfer protein. Biochim Biophys Acta. 1529: 257-275, 2000. 2) Nagano M et al.[bml.co.jp]
  • Pathophysiology [ edit ] Following cleavage by β-secretase, APP is cleaved by a membrane-bound protein complex called γ-secretase to generate Aβ. Presenilins 1 and 2 are the enzymatic centers of this complex along with nicastrin, Aph1, and PEN-2.[en.wikipedia.org]


  • Scientists are hoping volunteers from the world’s largest concentration of people with a rare genetic mutation causing early onset Alzheimer’s may help prevent the disease in others someday.[cbsnews.com]
  • Symptoms - Alzheimer disease type 4 Causes - Alzheimer disease type 4 Prevention - Alzheimer disease type 4 Not supplied. Diagnosis - Alzheimer disease type 4 Not supplied.[checkorphan.org]
  • Identifying genetic variants may help researchers find the most effective ways to treat or prevent diseases such as Alzheimer's or frontotemporal degeneration in an individual.[depts.washington.edu]
  • Research studies are now investigating potentially preventative AD treatments in people confirmed as carrying an autosomal dominant AD mutation.[actionbioscience.org]

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