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Subjective Cognitive Decline

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https://www.readbyqxmd.com/read/28529513/ionizing-radiation-induced-immune-and-inflammatory-reactions-in-the-brain
#1
REVIEW
Katalin Lumniczky, Tünde Szatmári, Géza Sáfrány
Radiation-induced late brain injury consisting of vascular abnormalities, demyelination, white matter necrosis, and cognitive impairment has been described in patients subjected to cranial radiotherapy for brain tumors. Accumulating evidence suggests that various degrees of cognitive deficit can develop after much lower doses of ionizing radiation, as well. The pathophysiological mechanisms underlying these alterations are not elucidated so far. A permanent deficit in neurogenesis, chronic microvascular alterations, and blood-brain barrier dysfunctionality are considered among the main causative factors...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28528772/early-interleukin-6-enhances-hepatic-ketogenesis-in-appswe-psen1de9-mice-via-3-hydroxy-3-methylglutary-coa-synthase-2-signaling-activation-by-p38-nuclear-factor-%C3%AE%C2%BAb-p65
#2
Le Shi, Daina Zhao, Chen Hou, Yunhua Peng, Jing Liu, Shuangxi Zhang, Jiankang Liu, Jiangang Long
Alzheimer's disease (AD) is considered a multifactorial disease that affects the central nervous system and periphery. A decline in brain glucose metabolism is an early feature of AD and is accompanied by a phenotypic shift from aerobic glycolysis to ketogenesis. The liver is responsible for the generation of the ketone body. However, the mechanism that underlies hepatic ketogenesis in AD remains unclear. Here, we investigated hepatic ketogenesis during the early stage of AD pathogenesis in amyloid precursor protein (APPSWE) and presenilin (PSEN1dE9) (APP/PS1) mice...
April 26, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28527210/cerebrospinal-fluid-biomarkers-and-clinical-progression-in-patients-with-subjective-cognitive-decline-and-mild-cognitive-impairment
#3
Steffen Wolfsgruber, Alexandra Polcher, Alexander Koppara, Luca Kleineidam, Lutz Frölich, Oliver Peters, Michael Hüll, Eckart Rüther, Jens Wiltfang, Wolfgang Maier, Johannes Kornhuber, Piotr Lewczuk, Frank Jessen, Michael Wagner
BACKGROUND: There is very limited data on the prevalence of abnormal cerebrospinal fluid (CSF) biomarkers of Alzheimer's disease (AD) and their predictive value for clinical progression in memory clinic patients with subjective cognitive decline (SCD). OBJECTIVE: To assess the frequency of abnormal CSF biomarkers of AD and their predictive value for clinical progression in memory clinic patients with SCD in comparison to patients with mild cognitive impairment (MCI) from the same cohort...
May 13, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28524767/immune-biomarkers-in-older-adults-role-of-physical-activity
#4
Vanessa Valdiglesias, María Sánchez-Flores, Ana Maseda, Laura Lorenzo-López, Diego Marcos-Pérez, Ana López-Cortón, Barbara Strasser, Dietmar Fuchs, Blanca Laffon, José C Millán-Calenti, Eduardo Pásaro
Aging is associated with a decline in the normal functioning of the immune system. Several studies described the relationship between immunological alterations, including immunosenescence and inflammation, and aging or age-related outcomes, such as sarcopenia, depression, and neurodegenerative disorders. Physical activity is known to improve muscle function and to exert a number of benefits on older adult health, including reduced risk for heart and metabolic system chronic diseases. However, the positive influence of physical activity on the immune system has not been elucidated...
May 19, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28521364/chemotherapy-and-post-traumatic-stress-in-the-causation-of-cognitive-dysfunction-in-breast-cancer-patients
#5
Kerstin Hermelink, Markus Bühner, Philipp Sckopke, Franziska Neufeld, Judith Kaste, Varinka Voigt, Karin Münzel, Rachel Wuerstlein, Nina Ditsch, Karin Hellerhoff, Dorothea Rjosk-Dendorfer, Michael Braun, Franz Edler von Koch, Kristin Härtl, Stephan Hasmüller, Ingo Bauerfeind, Gerlinde Debus, Peter Herschbach, Sven Mahner, Nadia Harbeck
Background: Cancer-related cognitive dysfunction has mostly been attributed to chemotherapy; this explanation, however, fails to account for cognitive dysfunction observed in chemotherapy-naïve patients. In a controlled, longitudinal, multisite study, we tested the hypothesis that cognitive function in breast cancer patients is affected by cancer-related post-traumatic stress. Methods: Newly diagnosed breast cancer patients and healthy control subjects, age 65 or younger, underwent three assessments within one year, including paper-and-pencil and computerized neuropsychological tests, clinical diagnostics of post-traumatic stress disorder (PTSD), and self-reported cognitive function...
October 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28514188/the-invisibility-of-mild-traumatic-brain-injury-impaired-cognitive-performance-as-a-silent-symptom
#6
Leore R Heim, Miaad Badar, Shahaf Edut, Lital Rachmany, Renana Baratz, Ran Lin, Aviya Elpaz, Doaa Qubty, Lior Bikovski, Vardit Rubovitch, Shaul Schreiber, Chaim G Pick
The present study was designed to tackle two notorious features of mild Traumatic Brain Injury (mTBI) - heterogeneity and invisibility - by characterizing the full scope of mTBI symptoms. Mice were exposed to brain injuries of different intensities utilizing a weight-drop model (10, 30, 50, and 70g), and subsequently subjected to a comprehensive battery of behavioral tests at different time points, and immunohistochemical examination of cortical slices. While the physiological, neurological, emotional, and motor function of mTBI mice, i...
May 17, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28499294/h%C3%A3-rger%C3%A3-te-indikationen-technologie-anpassung-und-qualit%C3%A3-tskontrolle
#7
Ulrich Hoppe, Gerhard Hesse
Hearing loss can be caused by a number of different pathological conditions. Some of them can be successfully treated, mainly by surgery, depending on the individual's disease process. However, the treatment of chronic sensorineural hearing loss with damaged cochlear structures usually needs hearing rehabilitation by means of technical amplification. During the last 2 decades tremendous improvements in hearing aid technology led to a higher quality in the hearing rehabilitation process. For example, due to sophisticated signal processing the acoustic feedback path could be reduced and hence open fitting options are available for even more subjects...
April 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28495465/the-effect-of-blue-enriched-white-light-on-cognitive-performances-and-sleepiness-of-night-shift-workers-a-field-study
#8
Majid Motamedzadeh, Rostam Golmohammadi, Reza Kazemi, Rashid Heidarimoghadam
INTRODUCTION: Night-shift works are basically accompanied by reduced cognitive performance, sleepiness, and higher possibility for human error and related incidents. It is therefore crucial to improve individuals' performance and alertness in sensitive places like industries' control room with the ultimate goal of increasing efficiency and reducing the number of possible incidents. Previous research has indicated that blue light is a critical cue for entraining circadian rhythm. As a result, the present study was an attempt to investigate whether blue-enriched white light illumination was a practical strategy to decrease sleepiness and improve cognitive performance during night shifts...
May 8, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28494914/the-effect-of-melatonin-on-early-postoperative-cognitive-decline-in-elderly-patients-undergoing-hip-arthroplasty-a-randomized-controlled-trial
#9
Yunxia Fan, Liang Yuan, Muhuo Ji, Jianjun Yang, Dapeng Gao
STUDY OBJECTIVE: The purpose of the present study was to investigate whether exogenous melatonin supplementation could ameliorate early postoperative cognitive decline (POCD) in aged patients undergoing hip arthroplasty with spinal anesthesia. DESIGN: Prospective cohort study. SETTING: Department of Anesthesiology, Jinling Hospital, Nanjing University, Nanjing, China. PATIENTS: One hundred and thirty-nine patients with ASA I-III, older than 65yr of age (mean age: 74...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28493605/adverse-effects-of-obesity-on-cognitive-functions-in-individuals-at-ultra-high-risk-for-bipolar-disorder-results-from-the-global-mood-and-brain-science-initiative
#10
Roger S McIntyre, Rodrigo B Mansur, Yena Lee, Letícia Japiassú, Kun Chen, Rui Lu, Weicong Lu, Xiaodong Chen, Ting Li, Guiyun Xu, Kangguang Lin
BACKGROUND: The burden of illness associated with bipolar disorder (BD) warrants early pre-emption/prevention. Prediction models limited to psychiatric phenomenology have insufficient predictive power. Herein, we aimed to evaluate whether the presence of overweight/obesity is associated with greater cognitive decline in individuals at high risk (HR) or ultra high risk (UHR) for BD. METHODS: We conducted a retrospective analysis to investigate the moderational role of body mass index (BMI) on measures of cognitive function...
March 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28492059/severity-of-memory-impairment-in-the-elderly-association-with-health-care-resource-use-and-functional-limitations-in-the-united-states
#11
Myrlene Sanon Aigbogun, Robert Stellhorn, Holly Krasa, Dusan Kostic
INTRODUCTION: Dementia is a prevalent condition in older adults associated with decline in cognitive and functional abilities and substantial burden. This study assessed the prevalence and impact of subjective memory impairment in the United States. METHODS: The 2011 to 2014 National Health and Nutrition Examination Survey, a population-based, nationally representative survey, was analyzed. Data included medical examinations, self-reported cognitive and functional limitations, and health care utilization over 1 year...
2017: Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring
https://www.readbyqxmd.com/read/28490315/orofacial-pain-and-mastication-in-dementia
#12
Frank Lobbezoo, Suzanne Delwel, Roxane A F Weijenberg, Erik J A Scherder
Orofacial pain is a common condition in the general population. It is likely that this is also the case in older persons with a dementia. However, the assessment of (orofacial) pain in non-verbal individuals is hampered by the subjective nature of pain, and their limited communicative abilities. To overcome this drawback, several tools have been developed for the assessment of pain based on observations of pain-specific facial activities, body movements, and vocalizations. Unfortunately, none of the so far developed observational tools have been designed specifically for the assessment of orofacial pain...
2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28489875/functional-data-analysis-of-sleeping-energy-expenditure
#13
Jong Soo Lee, Issa F Zakeri, Nancy F Butte
Adequate sleep is crucial during childhood for metabolic health, and physical and cognitive development. Inadequate sleep can disrupt metabolic homeostasis and alter sleeping energy expenditure (SEE). Functional data analysis methods were applied to SEE data to elucidate the population structure of SEE and to discriminate SEE between obese and non-obese children. Minute-by-minute SEE in 109 children, ages 5-18, was measured in room respiration calorimeters. A smoothing spline method was applied to the calorimetric data to extract the true smoothing function for each subject...
2017: PloS One
https://www.readbyqxmd.com/read/28486506/an-fmri-study-into-emotional-processing-in-parkinson-s-disease-does-increased-medial-prefrontal-activation-compensate-for-striatal-dysfunction
#14
Anja J H Moonen, Peter H Weiss, Michael Wiesing, Ralph Weidner, Gereon R Fink, Jennifer S A M Reijnders, Wim M Weber, Albert F G Leentjens
BACKGROUND: Apart from a progressive decline of motor functions, Parkinson's disease (PD) is also characterized by non-motor symptoms, including disturbed processing of emotions. This study aims at assessing emotional processing and its neurobiological correlates in PD with the focus on how medicated Parkinson patients may achieve normal emotional responsiveness despite basal ganglia dysfunction. METHODS: Nineteen medicated patients with mild to moderate PD (without dementia or depression) and 19 matched healthy controls passively viewed positive, negative, and neutral pictures in an event-related blood oxygen level-dependent functional magnetic resonance imaging study (BOLD-fMRI)...
2017: PloS One
https://www.readbyqxmd.com/read/28485779/effects-of-vitamin-b12-on-postoperative-cognitive-dysfunction-induced-by-isoflurane-anesthesia-in-rats
#15
H-Y Sha, J-B Zhao, M-X Sha, S-M Guo
OBJECTIVE: Postoperative cognitive dysfunction is a clinical syndrome associated with cognitive decline in patients after anesthesia. This study aimed to investigate the effect of VB12 (Vitamin B12), a kind of necessary micronutrients promoting the growth and development of the nervous system, on cognitive dysfunction induced by isoflurane anesthesia. MATERIALS AND METHODS: Eighteen-month-old rats were exposed to or were not exposed to 1.4% isoflurane for 2 h. Two hours before isoflurane exposure, rats in groups with VB12 were injected intramuscularly with VB12 at 10 or 20 μg...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28484387/functional-connectivity-disruption-in-subjective-cognitive-decline-and-mild-cognitive-impairment-a-common-pattern-of-alterations
#16
David López-Sanz, Ricardo Bruña, Pilar Garcés, María Carmen Martín-Buro, Stefan Walter, María Luisa Delgado, Mercedes Montenegro, Ramón López Higes, Alberto Marcos, Fernando Maestú
Functional connectivity (FC) alterations represent a key feature in Alzheimer's Disease (AD) and provide a useful tool to characterize and predict the course of the disease. Those alterations have been also described in Mild Cognitive Impairment (MCI), a prodromal stage of AD. There is a growing interest in detecting AD pathology in the brain in the very early stages of the disorder. Subjective Cognitive Decline (SCD) could represent a preclinical asymptomatic stage of AD but very little is known about this population...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28482688/subjective-cognitive-decline-in-preclinical-alzheimer-s-disease
#17
Laura A Rabin, Colette M Smart, Rebecca E Amariglio
Older adults with subjective cognitive decline (SCD) in the absence of objective neuropsychological dysfunction are increasingly viewed as at risk for non-normative cognitive decline and eventual progression to Alzheimer's disease (AD) dementia. The past decade has witnessed tremendous growth in research on SCD, which may reflect the recognition of SCD as the earliest symptomatic manifestation of AD. Yet methodological challenges associated with establishing common assessment and classification procedures hamper the construct...
May 8, 2017: Annual Review of Clinical Psychology
https://www.readbyqxmd.com/read/28482637/inpp5d-mrna-expression-and-cognitive-decline-in-japanese-alzheimer-s-disease-subjects
#18
Yuta Yoshino, Kiyohiro Yamazaki, Yuki Ozaki, Tomoko Sao, Taku Yoshida, Takaaki Mori, Yoko Mori, Shinichiro Ochi, Jun-Ichi Iga, Shu-Ichi Ueno
Microglial dysfunction and inflammation have recently been shown to be related to the development of Alzheimer's disease (AD). Inositol polyphosphate-5-phosphatase (INPP5D) functions broadly as a negative regulator of immune signaling, and its locus was associated with development of AD in a large-scale genome-wide association study. Thus, we examined INPP5D mRNA expression and methylation rates of the CpG sites in the upstream region of INPP5D exon 1 in peripheral leukocytes in 50 AD and age- and sex-matched control subjects...
May 2, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28482212/the-frequency-and-influence-of-dementia-risk-factors-in-prodromal-alzheimer-s-disease
#19
Isabelle Bos, Stephanie J Vos, Lutz Frölich, Johannes Kornhuber, Jens Wiltfang, Wolfgang Maier, Oliver Peters, Eckhart Rüther, Sebastiaan Engelborghs, Ellis Niemantsverdriet, Ellen Elisa De Roeck, Magda Tsolaki, Yvonne Freund-Levi, Peter Johannsen, Rik Vandenberghe, Alberto Lleó, Daniel Alcolea, Giovanni B Frisoni, Samantha Galluzzi, Flavio Nobili, Silvia Morbelli, Alexander Drzezga, Mira Didic, Bart N van Berckel, Eric Salmon, Christine Bastin, Solene Dauby, Isabel Santana, Inês Baldeiras, Alexandre de Mendonça, Dina Silva, Anders Wallin, Arto Nordlund, Preciosa M Coloma, Angelika Wientzek, Myriam Alexander, Gerald P Novak, Mark Forrest Gordon, Åsa K Wallin, Harald Hampel, Hilkka Soininen, Sanna-Kaisa Herukka, Philip Scheltens, Frans R Verhey, Pieter Jelle Visser
We investigated whether dementia risk factors were associated with prodromal Alzheimer's disease (AD) according to the International Working Group-2 and National Institute of Aging-Alzheimer's Association criteria, and with cognitive decline. A total of 1394 subjects with mild cognitive impairment from 14 different studies were classified according to these research criteria, based on cognitive performance and biomarkers. We compared the frequency of 10 risk factors between the subgroups, and used Cox-regression to examine the effect of risk factors on cognitive decline...
April 8, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28481569/cognitive-modeling-as-an-interface-between-brain-and-behavior-measuring-the-semantic-decline-in-mild-cognitive-impairment
#20
Brendan T Johns, Vanessa Taler, David B Pisoni, Martin R Farlow, Ann Marie Hake, David A Kareken, Frederick W Unverzagt, Michael N Jones
Mild cognitive impairment (MCI) is characterised by subjective and objective memory impairment in the absence of dementia. MCI is a strong predictor for the development of Alzheimer's disease, and may represent an early stage in the disease course in many cases. A standard task used in the diagnosis of MCI is verbal fluency, where participants produce as many items from a specific category (e.g., animals) as possible. Verbal fluency performance is typically analysed by counting the number of items produced...
May 8, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
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