Medical News Today: Alzheimer's: Artificial intelligence predicts onset

A deep learning algorithm trained to analyze brain scans accurately predicted who would develop Alzheimer's more than 6 years before diagnosis.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Alzheimer's / Dementia Source Type: news

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In this study, we aimed to study the Tau PET images in these patients. Methods Clinical features, brain magnetic resonance imaging/computed tomography (MRI/CT), and brain 18F-THK-5351 PET were recorded in five patients with the APP p.D678H mutation and correlated with brain 18F-AV-45 PET images. We also compared the tau deposition patterns among five patients with familial mild cognitive impairment (fMCI), six patients with sporadic amnestic mild cognitive impairment (sMCI), nine patients with mild to moderate dementia due to Alzheimer’s disease (AD), and 12 healthy controls (HCs). All of the subjects also recei...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
DiscussionOur results encourage an independent validation cohort study to confirm the indication that the plasma Aβ1–40/Aβ1–42 ratio, assessed via Simoa, may improve future standard of care and clinical trial design.
Source: Alzheimer's and Dementia: The Journal of the Alzheimer's Association - Category: Geriatrics Source Type: research
DiscussionQuantification of 18F-florbetaben positron emission tomography scans using magnetic resonance–based and magnetic resonance–less CapAIBL® approaches showed high agreement, establishing a pathology-based threshold in CL.
Source: Alzheimer's and Dementia: The Journal of the Alzheimer's Association - Category: Geriatrics Source Type: research
CONCLUSIONS: Patients and caregivers emphasized the importance of having a dementia diagnosis and placed more value on testing and outcomes for asymptomatic populations than clinicians. This underscores the importance of research investigating the effect of amyloid PET results on asymptomatic individuals and the need for amyloid PET ordering and disclosure standards. PMID: 31058683 [PubMed - as supplied by publisher]
Source: Alzheimer Disease and Associated Disorders - Category: Psychiatry Tags: Alzheimer Dis Assoc Disord Source Type: research
This study, as well as the larger SPRINT study, also demonstrated that overall intensive treatment of blood pressure in older adults is safe. However, we do know that some individuals may develop dizziness, imbalance, and in rare instances strokes with intensive blood pressure lowering. For that reason, it is important to discuss your blood pressure management with your primary care physician and follow his or her recommendation. How do cardiovascular risk factors affect brain health? We have evidence from studies of the population, studies of brain scans, and studies of animals, that treatment of cardiovascular risk facto...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Alzheimer's Disease Brain and cognitive health Heart Health Hypertension and Stroke Memory Prevention Source Type: blogs
Publication date: Available online 5 May 2019Source: International Journal of PsychophysiologyAuthor(s): Benjamin M. Hampstead, Anthony Y. Stringer, Randall F. Stilla, K. SathianAbstractLearning and memory deficits characterize the diagnosis of amnestic mild cognitive impairment (aMCI), which is widely viewed as a clinical precursor to Alzheimer's type dementia. There is a growing interest in non-pharmacologic interventions, such as mnemonic strategies, for improving learning and memory in patients with aMCI as well as for maintaining functioning in healthy older adults. Using an ecologically relevant object-location assoc...
Source: International Journal of Psychophysiology - Category: Psychiatry & Psychology Source Type: research
Conclusions: The use of antidepressants, especially SNRIs, was associated with a shorter survival time of sCJD patients. The possible changes in neurotransmitters should be emphasized. Scientifically, this study may provide insights into the mechanism of CJD. Clinically, it may contribute to the early diagnosis of CJD.IntroductionDepression is common in the elderly. Its prevalence rate is as high as 11.19%, and this increases progressively with worsening cognitive impairment (1). The presence of depression is an acknowledged risk factor for dementia (2); it can even double the risk for Alzheimer’s disease (AD) (3, 4)...
Source: Frontiers in Psychiatry - Category: Psychiatry Source Type: research
This study investigated the ability of magnetic resonance spectroscopy (1H-MRS) of posterior cingulate cortex (PCC) and brain volumetry to predict the progression from mild cognitive impairment (MCI) to Alzheimer's Disease (AD) on the basis of clinical classification at 2 years follow-up. Thirty-eight MCI patients, eighteen healthy older adults and twenty-three AD patients were included in this study. All participants underwent a brain-MR protocol (1.5 T GE scanner) including high-resolution T1-weighted volumetric sequence (isotropic 1mm3). Voxel-wise differences in brain volumetry were evaluated using FreeSurfer softw...
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Conclusion: We present a new statistical model with which EEG reactivity to external stimuli during routine presurgical evaluation can be seen as a promising avenue for the identification of patients with favorable VNS outcome. This novel method for the prediction of VNS efficacy might represent a breakthrough in the management of drug-resistant epilepsy, with wide-reaching medical and economic implications. Introduction Resective surgery is currently the best therapeutic option for treatment of patients with drug-resistant epilepsy, but a substantial number of intractable patients remains who are ineligible for such...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion: Intracranial artery calcification is common in patients with ischemic cerebrovascular disease and the intracranial carotid artery is most frequently affected. Intracranial arterial calcifications might be associated with imaging markers of SVD and are highly correlated with WMHs, lacunes, and CMBs. Quantification of calcification on CT provides additional information on the pathophysiology of SVD. Intracranial arterial calcification could act as a potential marker of SVD. Introduction Atherosclerosis is a systemic vascular process that is considered a major cause of cerebrovascular and cardiovascular di...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
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