Read by QxMD icon Read

Subjective Cognitive Decline

Katherine Amy Lin, Colin Rundel, P Murali Doraiswamy
BACKGROUND: Prior studies have noted gender differences in cognition, imaging, and pathological markers in mild cognitive impairment (MCI) subjects. Sex hormone-binding globulin (SHBG), a major controlling factor in the proportion of bioavailable versus bound testosterone and estrogen, has been proposed to contribute to links between hormones and dementia, but has not yet been investigated fully in a prospective biomarker trial. OBJECTIVE: This study examined whether, among subjects with MCI, SHBG levels predict future rate of cognitive decline...
October 20, 2016: Journal of Alzheimer's Disease: JAD
Liangyan Gui, Xiaoying Tang, José M F Moura
We propose a geodesic distance on a Grassmannian manifold that can be used to quantify the shape progression patterns of the bilateral hippocampi, amygdalas, and lateral ventricles in healthy control (HC), mild cognitive impairment (MCI), and Alzheimer's disease (AD). Longitudinal magnetic resonance imaging (MRI) scans of 754 subjects (3092 scans in total) were used in this study. Longitudinally, the geodesic distance was found to be proportional to the elapsed time separating the two scans in question. Cross-sectionally, utilizing a linear mixed-effects statistical model, we found that each structure's annualized rate of change in the geodesic distance followed the order of AD > MCI > HC, with statistical significance being reached in every case...
October 15, 2016: NeuroImage
Laura K Holden, Jill B Firszt, Ruth M Reeder, Rosalie M Uchanski, Noël Y Dwyer, Timothy A Holden
OBJECTIVE: To identify primary biographic and audiologic factors contributing to cochlear implant (CI) performance variability in quiet and noise by controlling electrode array type and electrode position within the cochlea. BACKGROUND: Although CI outcomes have improved over time, considerable outcome variability still exists. Biographic, audiologic, and device-related factors have been shown to influence performance. Examining CI recipients with consistent array type and electrode position may allow focused investigation into outcome variability resulting from biographic and audiologic factors...
October 12, 2016: Otology & Neurotology
Hirochika Ryuno, Kei Kamide, Yasuyuki Gondo, Mai Kabayama, Ken Sugimoto, Takeshi Nakagawa, Kazunori Ikebe, Hiroki Inagaki, Yukie Masui, Yasumichi Arai, Tatsuro Ishizaki, Hiromi Rakugi
OBJECTIVE: It is well-documented that midlife hypertension (HT) is associated with decline of cognitive function. Recently, we reported that the influence of HT and/or elevated blood pressure on the progression of cognitive decline was attenuated at late life aged 70 of the general population in cross-sectional analysis. The purpose of this study is to investigate the 3 years' longitudinal effect of HT and additive risk factors on decline of cognitive function for 70-year-old general Japanese population in the Septuagenarians, Octogenarians and Nonagenarians Investigation with Centenarians (SONIC) study, which is a narrow age range cohort...
September 2016: Journal of Hypertension
Akinori Higaki, Masaki Mogi, Jun Iwanami, Li-Juan Min, Hirotomo Nakaoka, Bao-Shuai Shan, Masayoshi Kukida, Toshihiro Yamauchi, Takafumi Okura, Jitsuo Higaki, Masatsugu Horiuchi
OBJECTIVE: Classical renin-angiotensin system (RAS) is mainly known as angiotensin (Ang) converting enzyme (ACE)/Ang II/Ang type 1 (AT1) receptor axis which induces various organ damages including cognitive decline. On the other hand, ACE2/Ang-(1-7)/Mas axis has been known to exert antagonistic actions against the classical RAS axis in cardiovascular system. However, the roles of ACE2/Ang-(1-7)/Mas axis in cognitive function remain to be elucidated. Here, we examined possible roles of ACE2/Ang-(1-7)/Mas axis in cognitive function in vascular dementia model...
September 2016: Journal of Hypertension
Adrian Noriega De La Colina, Rong Wu, Laurence Desjardins-Crépeau, Pierre Larochelle, Maxime Lamarre-Cliche, Louis Bherer, Hélène Girouard
OBJECTIVE: The objective of this study was to assess cognitive performance in older adults treated and controlled for blood pressure (BP) when compared to untreated normotensive subjects, and to determine whether blood pressure still correlates with poorer cognitive performances. DESIGN AND METHOD: Forty-eight older adults aged between 65 and 85 years were recruited in the community and divided into two groups: normotensive (n = 26) and controlled hypertensive (n = 22)...
September 2016: Journal of Hypertension
Yuda Turana
Observational studies have conveyed the connection between hypertension and cognitive impairment. Several forms of dementia are more frequent in hypertensive subjects or those with previous history of hypertension compared to subjects with normal blood pressure.In many studies, hypertension occuring in mid-life is a risk factor of dementia occuring in later age. Long-standing hypertension will induce structural damages in the brain. It is also widely known that hypertension attributes to small vessel diseases causing lacunar infarcts and white matter lesions associated with cognitive decline...
September 2016: Journal of Hypertension
Taiji Ogawa, Masahiro Uota, Kazunori Ikebe, Yasumichi Arai, Kei Kamide, Yasuyuki Gondo, Yukie Masui, Tatsuro Ishizaki, Chisato Inomata, Hajime Takeshita, Yusuke Mihara, Kodai Hatta, Yoshinobu Maeda
The sense of taste plays a pivotal role for personal assessment of the nutritional value, safety, and quality of foods. Although it is commonly recognized that taste sensitivity decreases with age, alterations in that sensitivity over time in an old-old population have not been previously reported. Furthermore, no known studies utilized comprehensive variables regarding taste changes and related factors for assessments. Here, we report novel findings from a 3-year longitudinal study model aimed to elucidate taste sensitivity decline and its related factors in old-old individuals...
October 17, 2016: Journal of Oral Rehabilitation
Mary Adams
BACKGROUND: Limited study has been done on proxy responses for non-respondents with subjective cognitive decline (SCD) on the Behavioral Risk Factor Surveillance System (BRFSS). OBJECTIVE: To directly compare results for survey respondents with SCD with those for proxies provided for non-respondents with SCD. METHODS: Publicly available 2011 BRFSS data from 120,485 households in 21 states were analyzed using Stata. Respondents ages 40 and older with SCD (n = 10,831) were compared with proxy responses for non-respondents ages 40 and older with SCD (n = 4296) living in households where the respondent did not have SCD...
September 13, 2016: Disability and Health Journal
Liina Haring, René Mõttus, Kärolin Kajalaid, Kadri Koch, Kärt Uppin, Eduard Maron, Eero Vasar
Our aim with the present study was to evaluate rank-order and mean-level cognitive functioning stability among first-episode psychosis (FEP) patients, measured using the Cambridge Neuropsychological Test Automated Battery (CANTAB), over a six month period. We also aimed to examine longitudinal measurement invariance and identify factors-such as age, gender, educational level, treatment and psychopathological change scores-potentially linked to cognitive change among patients. In addition, correlations between objectively measured and subjectively evaluated cognitive functioning were estimated...
October 13, 2016: Schizophrenia Research
D P Devanand
Several recently developed biomarkers of Alzheimer disease (AD) are invasive, expensive, and difficult to obtain in most clinical settings. Olfactory identification test performance represents a noninvasive, inexpensive biomarker of AD that may have predictive accuracy comparable with neuroimaging measures and biomarkers assessed in cerebrospinal fluid. Neurofibrillary tangles in the olfactory bulb are among the earliest pathologic features of AD and are also seen in the projection pathways from the olfactory bulb to secondary olfactory brain regions, including the piriform and medial temporal cortex, orbitofrontal cortex, and other limbic regions...
August 17, 2016: American Journal of Geriatric Psychiatry
Freddy J Alfaro, Vasileios-Arsenios Lioutas, Daniela A Pimentel, Chen-Chih Chung, Francisco Bedoya, Woo-Kyoung Yoo, Vera Novak
Subjects with metabolic syndrome (MetS) often show worse cognitive performance compared with the healthy population. We investigated whether microstructural white matter abnormalities are associated with cognitive performance in adults with MetS using diffusion tensor MR imaging. A total of 32 subjects with MetS (age 64.8 ± 7.8, 56.25 % female) and 23 age-, gender-, and education-matched healthy controls completed a battery of neuropsychological tests and diffusion tensor imaging (DTI) at 3-T MRI. Brain global and regional volumes, white matter fractional anisotropy (FA), mean diffusivity (MD), radial diffusivity (RD), and axial diffusivity (LD) were calculated...
October 11, 2016: Journal of Neurology
Susanne Röhr, Tobias Luck, Arno Villringer, Matthias C Angermeyer, Steffi G Riedel-Heller
Objective: Subjective cognitive decline is controversially discussed as early notable sign of future dementia in the literature. Therefore, we aimed to investigate whether SCD predicts dementia in a sample of cognitively unimpaired older individuals (75+). Methods: 595 cognitively unimpaired individuals who participated in the Leipzig Longitudinal Study of the Aged (LEILA75+) were regularly interviewed and cognitively tested over 8 years. Cox regression analyses were used to determine the association of SCD and development of dementia...
October 11, 2016: Psychiatrische Praxis
Stefanie Lerche, Kathrin Brockmann, Andrea Pilotto, Isabel Wurster, Ulrike Sünkel, Markus A Hobert, Anna-Katharina von Thaler, Claudia Schulte, Erik Stoops, Hugo Vanderstichele, Victor Herbst, Britta Brix, Gerhard W Eschweiler, Florian G Metzger, Walter Maetzler, Daniela Berg
BACKGROUND: Mild parkinsonian signs (MPS) are common in older people and are associated with an increased risk of different neurodegenerative diseases. This study prospectively evaluates the longitudinal course of cognitive performance in older individuals with MPS. METHODS: From the TREND study, 480 individuals neurologically healthy at baseline, aged between 50 and 80 years, with complete follow-up data for three assessments within a mean of 43.8 months, were included in this analysis...
October 10, 2016: Alzheimer's Research & Therapy
TianHong Zhang, HuiRu Cui, YingYing Tang, LiHua Xu, HuiJun Li, YanYan Wei, XiaoHua Liu, Annabelle Chow, ChunBo Li, KaiDa Jiang, ZePing Xiao, JiJun Wang
Neurocognitive decline has been observed in patients with psychosis as well as attenuated psychosis syndrome (APS). We tested the hypothesis that APS increases dependence on neurocognition during the interpretation of others' mental states and that a combination index of Theory of Mind (ToM) and neurocognition improves the predictive accuracy of psychosis conversion. A sample of 83 APS individuals and 90 healthy controls (HC) were assessed by comprehensive cognitive tests. The cohort also completed a one-year follow-up...
October 10, 2016: Scientific Reports
Daniel Guerreiro Diniz, Marcus Augusto de Oliveira, Camila Mendes de Lima, César Augusto Raiol Fôro, Marcia Consentino Kronka Sosthenes, João Bento-Torres, Pedro Fernando da Costa Vasconcelos, Daniel Clive Anthony, Cristovam Wanderley Picanço Diniz
BACKGROUND: Few studies have explored the glial response to a standard environment and how the response may be associated with age-related cognitive decline in learning and memory. Here we investigated aging and environmental influences on hippocampal-dependent tasks and on the morphology of an unbiased selected population of astrocytes from the molecular layer of dentate gyrus, which is the main target of perforant pathway. RESULTS: Six and twenty-month-old female, albino Swiss mice were housed, from weaning, in a standard or enriched environment, including running wheels for exercise and tested for object recognition and contextual memories...
October 10, 2016: Behavioral and Brain Functions: BBF
Jurgita Kuzmickienė, Gintaras Kaubrys
BACKGROUND The primary manifestation of Alzheimer's disease (AD) is decline in memory. Dysexecutive symptoms have tremendous impact on functional activities and quality of life. Data regarding frontal-executive dysfunction in mild AD are controversial. The aim of this study was to assess the presence and specific features of executive dysfunction in mild AD based on Cambridge Neuropsychological Test Automated Battery (CANTAB) results. MATERIAL AND METHODS Fifty newly diagnosed, treatment-naïve, mild, late-onset AD patients (MMSE ≥20, AD group) and 25 control subjects (CG group) were recruited in this prospective, cross-sectional study...
October 8, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Willemijn J Jansen, Ron L H Handels, Pieter Jelle Visser, Pauline Aalten, Femke Bouwman, Jurgen Claassen, Peter van Domburg, Erik Hoff, Jan Hoogmoed, Albert F G Leentjens, Marcel Olde Rikkert, Ania M Oleksik, Machiel Smid, Philip Scheltens, Claire Wolfs, Frans Verhey, Inez H G B Ramakers
BACKGROUND: Neuropsychological testing has long been embedded in daily clinical practice at memory clinics but the added value of a complete neuropsychological assessment (NPA) to standard clinical evaluation is unknown. OBJECTIVE: To evaluate the added diagnostic and prognostic value of NPA to clinical evaluation only in memory clinic patients. METHODS: In 221 memory clinic patients of a prospective cohort study, clinical experts diagnosed clinical syndrome (subjective cognitive impairment (SCI), mild cognitive impairment (MCI), or dementia) and etiology (Alzheimer's disease (AD) or no AD), and provided a prognosis of disease course (decline or no decline) before and after results of NPA were made available...
October 4, 2016: Journal of Alzheimer's Disease: JAD
Xiaoniu Liang, Qihao Guo, Jianfeng Luo, Fang Li, Ding Ding, Qianhua Zhao, Zhen Hong
BACKGROUND: Caregivers of care-recipients with mild cognitive impairment (MCI) or dementia experience high caregiver burden; however, the psychiatric burden of caregivers of care-recipients with subjective cognitive decline (SCD) has not been investigated. We aimed to explore the prevalence of and risk factors for anxiety and depression symptoms among the caregivers of care-recipients with SCD and cognitive impairment. METHODS: The Hospital Anxiety and Depression Scale (HADS) was used to examine the anxiety and depression symptoms among the caregivers of 343 care-recipients (84 with SCD, 120 with MCI and 139 with dementia) treated at the Memory Clinic of Huashan Hospital in Shanghai, China from May 2012 to October 2014...
October 3, 2016: BMC Neurology
J Hara, W R Shankle, L W Barrentine, M V Curole
OBJECTIVES: Studies have produced conflicting results assessing hyperhomocysteinemia (HYH) treatment with B vitamins in patients with normal cognition, Alzheimer's disease and related disorders (ADRD). This study examined the effect of HYH management with L-methylfolate (LMF), methylcobalamin (MeCbl; B12), and N-acetyl-cysteine (CFLN: Cerefolin®/Cerefolin-NAC®) on cognitive decline. DESIGN: Prospective, case-control study of subjects followed longitudinally. SETTING: Outpatient clinic for cognitive disorders...
2016: Journal of Nutrition, Health & Aging
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"