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https://www.readbyqxmd.com/read/28088881/an-industry-update-the-latest-developments-in-therapeutic-delivery
#1
Iain Simpson
This Industry Update covers the period from 1 October through to 31 October 2016, and is based on information sourced from company press releases, scientific literature, patents and various news websites. The month saw several news items covering drug-delivery devices, including a new sensor to monitor and support the use of inhalers; launch in the UK of a new autoinjector for Cimzia(®), UCB's rheumatoid arthritis drug; and approval of Roche's Lucentis(®) in a prefilled syringe. Research was also published to show the value of continuous blood pressure monitoring in dementia management...
February 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28088191/predicting-probable-alzheimer-s-disease-using-linguistic-deficits-and-biomarkers
#2
Sylvester O Orimaye, Jojo S-M Wong, Karen J Golden, Chee P Wong, Ireneous N Soyiri
BACKGROUND: The manual diagnosis of neurodegenerative disorders such as Alzheimer's disease (AD) and related Dementias has been a challenge. Currently, these disorders are diagnosed using specific clinical diagnostic criteria and neuropsychological examinations. The use of several Machine Learning algorithms to build automated diagnostic models using low-level linguistic features resulting from verbal utterances could aid diagnosis of patients with probable AD from a large population...
January 14, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28078993/mirnas-new-biomarkers-and-therapeutic-targets-in-dementia
#3
Ana Teresa de Bastos Viegas, Joana Ribeiro Guedes, Ana Rafaela Oliveira, Ana Maria Sequeira Cardoso, Ana Luísa Colaço Cardoso
BACKGROUND: Dementia is a complex pathological state that affects millions of individuals worldwide and is responsible for a huge socioeconomic burden, making it a major health concern of current times. Given the impact of dementia in both patients and caregivers, it is crucial to fully clarify the molecular mechanisms underlying dementia-associated disorders, since without this knowledge our ability to correctly diagnose and treat these diseases is severely hampered. METHODS: Epigenetic mechanisms, such as miRNA-mediated post-transcriptional regulation, have been reported to play a role in dementia pathogenesis...
January 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28077020/relationship-between-18-f-flutemetamol-uptake-and-rbans-performance-in-non-demented-community-dwelling-older-adults
#4
Dustin B Hammers, Taylor J Atkinson, Bonnie C A Dalley, Kayla R Suhrie, Britney E Beardmore, Lance D Burrell, Kevin P Horn, Kelli M Rasmussen, Norman L Foster, Kevin Duff, John M Hoffman
OBJECTIVE: The Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) has been used extensively for clinical care and in research for patients with mild cognitive impairment and Alzheimer's disease (AD); however, relatively few studies have evaluated the relationship between RBANS performance and AD imaging biomarkers. The purpose of the current study was to evaluate the association between a relatively new amyloid positron emission tomography imaging biomarker and performance on the RBANS...
January 12, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28075435/cardiac-biomarkers-predict-1-year-mortality-in-elderly-patients-undergoing-hip-fracture-surgery
#5
Spyridon Katsanos, Andreas F Mavrogenis, Nikolaos Kafkas, Celestino Sardu, Vasileios Kamperidis, Panagiota Katsanou, Dimitrios Farmakis, John Parissis
This prospective study included 152 elderly patients (mean age, 80 years; range, 72-88 years) with a hip fracture treated surgically. Comorbidities were evaluated, and B-type natriuretic peptide was measured at baseline and at postoperative days 4 and 5 in addition to troponin I. Major cardiac events were recorded, and 1-year mortality was assessed. Comorbidity models with the important multivariate predictors of 1-year mortality were analyzed. Overall, 9 patients (6%) experienced major cardiac events postoperatively during their hospitalization...
January 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28075382/b-vitamin-intake-and-biomarker-status-in-relation-to-cognitive-decline-in-healthy-older-adults-in-a-4-year-follow-up-study
#6
Catherine F Hughes, Mary Ward, Fergal Tracey, Leane Hoey, Anne M Molloy, Kristina Pentieva, Helene McNulty
Advancing age can be associated with an increase in cognitive dysfunction, a spectrum of disability that ranges in severity from mild cognitive impairment to dementia. Folate and the other B-vitamins involved in one-carbon metabolism are associated with cognition in ageing but the evidence is not entirely clear. The hypothesis addressed in this study was that lower dietary intake or biomarker status of folate and/or the metabolically related B-vitamins would be associated with a greater than expected rate of cognitive decline over a 4-year follow-up period in healthy older adults...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28073031/plasma-concentrations-of-free-amyloid-%C3%AE-cannot-predict-the-development-of-alzheimer-s-disease
#7
Hugo Lövheim, Fredrik Elgh, Anders Johansson, Henrik Zetterberg, Kaj Blennow, Göran Hallmans, Sture Eriksson
INTRODUCTION: Biomarkers that identify individuals at risk of Alzheimer's disease (AD) development would be highly valuable. Plasma concentration of amyloid β (Aβ)-central in the pathogenesis of AD-is a logical candidate, but studies to date have produced conflicting results on its utility. METHODS: Plasma samples from 339 preclinical AD cases (76.4% women, mean age 61.3 years) and 339 age- and sex-matched dementia-free controls, taken an average of 9.4 years before AD diagnosis, were analyzed using Luminex xMAP technology and INNOBIA plasma Aβ form assays to determine concentrations of free plasma Aβ40 and Aβ42...
January 7, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28072381/magnetic-resonance-imaging-and-positron-emission-tomography-in-the-diagnosis-of-neurodegenerative-dementias
#8
REVIEW
A Del Sole, S Malaspina, Alberto Magenta Biasina
Neuroimaging, both with magnetic resonance imaging (MRI) and positron emission tomography (PET), has gained a pivotal role in the diagnosis of primary neurodegenerative diseases. These two techniques are used as biomarkers of both pathology and progression of Alzheimer's disease (AD) and to differentiate AD from other neurodegenerative diseases. MRI is able to identify structural changes including patterns of atrophy characterizing neurodegenerative diseases, and to distinguish these from other causes of cognitive impairment, e...
October 2016: Functional Neurology
https://www.readbyqxmd.com/read/28072380/network-functional-connectivity-and-whole-brain-functional-connectomics-to-investigate-cognitive-decline-in-neurodegenerative-conditions
#9
REVIEW
O Dipasquale, Mara Cercignani
Non-invasive mapping of brain functional connectivity (FC) has played a fundamental role in neuroscience, and numerous scientists have been fascinated by its ability to reveal the brain's intricate morphology and functional properties. In recent years, two different techniques have been developed that are able to explore FC in pathophysiological conditions and to provide simple and non-invasive biomarkers for the detection of disease onset, severity and progression. These techniques are independent component analysis, which allows a network-based functional exploration of the brain, and graph theory, which provides a quantitative characterization of the whole-brain FC...
October 2016: Functional Neurology
https://www.readbyqxmd.com/read/28064175/neuroimaging-of-inflammation-in-memory-and-related-other-disorders-nimrod-study-protocol-a-deep-phenotyping-cohort-study-of-the-role-of-brain-inflammation-in-dementia-depression-and-other-neurological-illnesses
#10
W Richard Bevan-Jones, Ajenthan Surendranathan, Luca Passamonti, Patricia Vázquez Rodríguez, Robert Arnold, Elijah Mak, Li Su, Jonathan P Coles, Tim D Fryer, Young T Hong, Guy Williams, Franklin Aigbirhio, James B Rowe, John T O'Brien
INTRODUCTION: Inflammation of the central nervous system is increasingly regarded as having a role in cognitive disorders such as dementia and depression, but it is not clear how such inflammation relates to other aspects of neuropathology, structural and functional changes in the brain and symptoms (as assessed via clinical and neuropsychological assessment and MRI). This study will explore these pathophysiological mechanisms using positron emission tomography (PET) which allows in vivo imaging of inflammation, amyloid and τ deposition, together with neuropsychological profiling, MRI and peripheral biomarker analysis...
January 7, 2017: BMJ Open
https://www.readbyqxmd.com/read/28062720/multimodal-characterization-of-older-apoe2-carriers-reveals-selective-reduction-of-amyloid-load
#11
Michel J Grothe, Sylvia Villeneuve, Martin Dyrba, David Bartrés-Faz, Miranka Wirth
OBJECTIVE: To comprehensively assess neurobiological effects of the protective APOE2 allele in the aged brain using a cross-sectional multimodal neuroimaging approach. METHODS: Multimodal neuroimaging data were obtained from a total of 572 older individuals without dementia (cognitively normal and mild cognitive impairment) enrolled in the Alzheimer's Disease Neuroimaging Initiative and included assessments of regional amyloid load with AV45-PET, glucose metabolism with fluorodeoxyglucose-PET, and gray matter volume with structural MRI...
January 6, 2017: Neurology
https://www.readbyqxmd.com/read/28061383/increased-blood-brain-barrier-permeability-is-associated-with-dementia-and-diabetes-but-not-amyloid-pathology-or-apoe-genotype
#12
Shorena Janelidze, Joakim Hertze, Katarina Nägga, Karin Nilsson, Christer Nilsson, Malin Wennström, Danielle van Westen, Kaj Blennow, Henrik Zetterberg, Oskar Hansson
Blood-brain barrier (BBB) dysfunction might be an important component of many neurodegenerative disorders. In this study, we investigated its role in dementia using large clinical cohorts. The cerebrospinal fluid (CSF)/plasma albumin ratio (Qalb), an indicator of BBB (and blood-CSF barrier) permeability, was measured in a total of 1015 individuals. The ratio was increased in patients with Alzheimer's disease, dementia with Lewy bodies or Parkinson's disease dementia, subcortical vascular dementia, and frontotemporal dementia compared with controls...
December 5, 2016: Neurobiology of Aging
https://www.readbyqxmd.com/read/28056460/cerebrospinal-fluid-biomarker-based-diagnosis-of-sporadic-creutzfeldt-jakob-disease-a-validation-study-for-previously-established-cutoffs
#13
Franc Llorens, André Karch, Ewa Golanska, Matthias Schmitz, Peter Lange, Beata Sikorska, Pawel P Liberski, Inga Zerr
BACKGROUND: Several biomarkers have been proposed to discriminate sporadic Creutzfeldt-Jakob disease (sCJD) from other dementias and control cases. However, their clinical accuracy depends on the PRNP codon 129 genotype, leaving it unclear how well established markers behave in untested conditions. METHODS: We analyzed 14-3-3, tau, p-tau levels, and the p-tau/tau ratio in a population sample collected from Polish hospitals including nondementia, dementia, and definite sCJD cases and validated their parameters according to previously established cutoffs...
January 6, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28039523/high-sensitivity-cardiac-troponin-i-and-nt-probnp-as-predictors-of-incident-dementia-and-alzheimer-s-disease-the-finrisk-study
#14
Juho Tynkkynen, Jussi A Hernesniemi, Tiina Laatikainen, Aki S Havulinna, Perttu Salo, Stefan Blankenberg, Tanja Zeller, Veikko Salomaa
Cardiac troponin and N-terminal pro-brain natriuretic peptide (NT-proBNP) are known to associate with incident dementia. The purpose of our study was to examine whether high-sensitivity cardiac troponin I (hs-TnI) and NT-proBNP are associated with incident dementia and Alzheimer's disease (AD) independently of each other. Our study was a part of the national population-based health examination survey, FINRISK 1997, with a total sample of 7114 subjects, including 407 incident dementia cases and 319 AD cases during the follow-up time of 18 years...
December 30, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/28030437/cerebrospinal-fluid-biomarkers-for-the-diagnosis-of-alzheimer-disease-in-south-korea
#15
Sun Ah Park, Won Seok Chae, Hyeong Jun Kim, Ho Sik Shin, Saeromi Kim, Ji Young Im, Sang Il Ahn, Kyoung Dae Min, Soo Jae Yim, Byoung Seok Ye, Sang Won Seo, Jee Hyang Jeong, Kyung Won Park, Seong Hye Choi, Duk L Na
Laboratory-specific reference values for cerebrospinal fluid (CSF) Alzheimer disease (AD) biomarkers are necessary. Our objective was to apply well-known CSF biomarkers and redetermine their diagnostic cutoff values for AD in South Korea. CSF samples from matched control subjects (n=71), patients with AD dementia (ADD, n=76), and other neurological disorders with cognitive decline (OND, n=47) were obtained from 6 Korean dementia clinics according to a standardized protocol. CSF biomarker concentrations were measured using enzyme-linked immunosorbent assay...
December 23, 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/28024995/synergistic-interaction-between-amyloid-and-tau-predicts-the-progression%C3%A2-to-dementia
#16
Tharick A Pascoal, Sulantha Mathotaarachchi, Monica Shin, Andrea L Benedet, Sara Mohades, Seqian Wang, Tom Beaudry, Min Su Kang, Jean-Paul Soucy, Aurelie Labbe, Serge Gauthier, Pedro Rosa-Neto
INTRODUCTION: Recent literature proposes that amyloid-β and phosphorylated tau (p-tau) synergism accelerates biomarker abnormalities in controls. Yet, it remains to be answered whether this synergism is the driving force behind Alzheimer disease (AD) dementia. METHODS: We stratified 314 mild cognitive impairment individuals using [(18)F]florbetapir positron emission tomography amyloid-β imaging and cerebrospinal fluid p-tau. Regression and voxel-based logistic regression models with interaction terms evaluated 2-year changes in cognition and clinical status as a function of baseline biomarkers...
December 23, 2016: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28012089/orexin-and-alzheimer-s-disease
#17
Claudio Liguori
Alzheimer's disease (AD) is the most frequent age-related dementia. It prevalently causes cognitive decline, although it is frequently associated with secondary behavioral disturbances. AD neurodegeneration characteristically produces a remarkable destruction of the sleep-wake cycle, with diurnal napping, nighttime arousals, sleep fragmentation, and REM sleep impairment. It was recently hypothesized that the orexinergic system was involved in AD pathology. Accordingly, recent papers showed the association between orexinergic neurotransmission dysfunction, sleep impairment, and cognitive decline in AD...
December 24, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28009725/cognitive-decline-and-dementia-in-down-syndrome
#18
Rosalyn Hithersay, Sarah Hamburg, Bernice Knight, André Strydom
PURPOSE OF REVIEW: Alzheimer's disease is most likely universal in older individuals with Down syndrome, due to having three copies of the amyloid precursor protein gene, resulting in amyloid-beta plaque deposition. Down syndrome is an important population in which to consider clinical trials of treatments to prevent or delay the development of dementia. However, assessment of subtler cognitive changes is challenging due to the presence of intellectual disability. RECENT FINDINGS: Recent research confirmed that older adults with Down syndrome often present with cognitive decline: more than 80% may experience dementia by age 65 years...
December 21, 2016: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/28004582/weighted-protein-interaction-network-analysis-of-frontotemporal-dementia
#19
Raffaele Ferrari, Ruth C Lovering, John Hardy, Patrick A Lewis, Claudia Manzoni
The genetic analysis of complex disorders has undoubtedly led to the identification of a wealth of associations between genes and specific traits. However, moving from genetics to biochemistry one gene at a time has, to date, rather proved inefficient and under-powered to comprehensively explain the molecular basis of phenotypes. Here we present a novel approach - weighted protein-protein interaction network analysis (W-PPI-NA) - to highlight key functional players within relevant biological processes associated with a given trait...
December 22, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/28004274/imaging-biomarkers-of-dementia-recommended-visual-rating-scales-with-teaching-cases
#20
REVIEW
Lars-Olof Wahlund, Eric Westman, Danielle van Westen, Anders Wallin, Sara Shams, Lena Cavallin, Elna-Marie Larsson
: The diagnostic work up of dementia may benefit from structured reporting of CT and/or MRI and the use of standardised visual rating scales. We advocate a more widespread use of standardised scales as part of the workflow in clinical and research evaluation of dementia. We propose routine clinical use of rating scales for medial temporal atrophy (MTA), global cortical atrophy (GCA) and white matter hyperintensities (WMH). These scales can be used for evaluation of both CT and MRI and are efficient in routine imaging assessment in dementia, and may improve the accuracy of diagnosis...
December 21, 2016: Insights Into Imaging
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