Light-Induced Pupillary Responses in Alzheimer's Disease

Light-Induced Pupillary Responses in Alzheimer's Disease Pratik S. Chougule1, Raymond P. Najjar1,2, Maxwell T. Finkelstein1, Nagaendran Kandiah3,4 and Dan Milea1,2,5* 1Department of Visual Neurosciences, Singapore Eye Research Institute, Singapore, Singapore 2The Ophthalmology &Visual Sciences ACP, Duke-National University of Singapore (NUS) Medical School, Singapore, Singapore 3Department of Neurology, National Neuroscience Institute, Singapore, Singapore 4Duke-National University of Singapore (NUS), Singapore, Singapore 5Singapore National Eye Centre, Singapore, Singapore The impact of Alzheimer's disease (AD) on the pupillary light response (PLR) is controversial, being dependent on the stage of the disease and on the experimental pupillometric protocols. The main hypothesis driving pupillometry research in AD is based on the concept that the AD-related neurodegeneration affects both the parasympathetic and the sympathetic arms of the PLR (cholinergic and noradrenergic theory), combined with additional alterations of the afferent limb, involving the melanopsin expressing retinal ganglion cells (mRGCs), subserving the PLR. Only a few studies have evaluated the value of pupillometry as a potential biomarker in AD, providing various results compatible with parasympathetic dysfunction, displaying increased latency of pupillary constriction to light, decreased constriction amplitude, faster redilation after light offset, decreased maximum veloci...
Source: Frontiers in Neurology - Category: Neurology Source Type: research

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AbstractChronic thromboembolic pulmonary hypertension is an underdiagnosed condition. Patients typically present with the symptoms of right heart failure. Diagnosis is usually done by radionuclide ventilation/perfusion (VQ) scan, high-quality multidetector computed tomography (CT) or pulmonary angiography at expert centers. Pulmonary endarterectomy remains the corner stone in management of chronic thromboembolic pulmonary hypertension. Deep hypothermic circulatory arrest is commonly used for the operation at most centers. In-hospital mortality ranges from 1.7 to 14.2%. Pulmonary hemorrhage, reperfusion lung injury, and rig...
Source: Indian Journal of Thoracic and Cardiovascular Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
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Source: Sleep Medicine Clinics - Category: Sleep Medicine Source Type: research
TEOFILO LEE-CHIONG Jr, MD
Source: Sleep Medicine Clinics - Category: Sleep Medicine Source Type: research
Causes of Sleep Complaints
Source: Sleep Medicine Clinics - Category: Sleep Medicine Source Type: research
ELSEVIER
Source: Sleep Medicine Clinics - Category: Sleep Medicine Source Type: research
SLEEP MEDICINE CLINICS
Source: Sleep Medicine Clinics - Category: Sleep Medicine Authors: Source Type: research
Sleep health and tracking sleep with contemporary wearables have become more popular. Sleep disorders, in particular, sleep-disordered breathing, have a higher prevalence than estimated previously. Many patients with apnea and hypopnea events suffer whereas others do not report complaints or show cardiovascular consequences. Assessment with wearables may support efforts to distinguish which type of apnea is related to aging and which to cardiovascular comorbidities. Innovative methods offer smart solutions for problems that are insufficiently addressed. Telemedical concepts help bring patients to sleep medicine expertise a...
Source: Sleep Medicine Clinics - Category: Sleep Medicine Authors: Source Type: research
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Source: Sleep Medicine Clinics - Category: Sleep Medicine Authors: Source Type: research
New J. Chem., 2021, Advance Article DOI: 10.1039/D1NJ04453B, PaperIshrat Jahan, Shahid M. Nayeem Among the neurodegenerative diseases, one of the most common dementia is Alzheimer's disease (AD). To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - New J. Chem. latest articles - Category: Chemistry Authors: Source Type: research
ConclusionsWe established the feasibility of initiating and managing patients in a monthly text-based symptom-monitoring program. The provision of smartphones and patient navigation were unique and vital components of this program.
Source: Quality of Life Research - Category: Health Management Source Type: research
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