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https://www.readbyqxmd.com/read/27900151/can-the-otago-falls-prevention-program-be-delivered-by-video-a-feasibility-study
#1
Jennifer C Davis, Chun Liang Hsu, Winnie Cheung, Penny M A Brasher, Linda C Li, Karim M Khan, Jonathan Sykes, Dawn A Skelton, Teresa Liu-Ambrose
OBJECTIVES: We assessed the feasibility of delivering the Otago Exercise Programme (OEP) via an interactive DVD (ie, OEP-DVD) in combination with monthly physical therapist phone calls to older adults. DESIGN: This pre-post (baseline and 6-month follow-up) study included an intervention group (n=61) based in a rural location and a control group (n=21) based in a city. SETTING: Sechelt and Vancouver, British Columbia. PARTICIPANTS: 82 community-dwelling adults ≥75 years...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27884360/cost-effectiveness-of-endovascular-femoropopliteal-intervention-using-drug-coated-balloons%C3%A2-versus-standard-percutaneous-transluminal-angioplasty-results-from-the-in-pact%C3%A2-sfa-ii-trial
#2
Adam C Salisbury, Haiyan Li, Katherine R Vilain, Michael R Jaff, Peter A Schneider, John R Laird, David J Cohen
OBJECTIVES: The aim of this study was to evaluate the cost-effectiveness of drug-coated balloon (DCB) angioplasty versus standard percutaneous transluminal angioplasty (PTA). BACKGROUND: Recent trials have reported lower rates of target lesion revascularization with DCB angioplasty versus standard PTA. However, the cost-effectiveness of DCB angioplasty is unknown. METHODS: A prospective economic study was performed alongside the IN.PACT SFA II (IN...
November 28, 2016: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/27875715/common-and-divergent-neural-correlates-of-anomia-in-amnestic-and-logopenic-presentations-of-alzheimer-s-disease
#3
Cristian E Leyton, John R Hodges, Olivier Piguet, Kirrie J Ballard
The majority of logopenic variant primary progressive aphasia (lv-PPA) cases harbour Alzheimer pathology, suggesting that lv-PPA constitutes an atypical presentation of Alzheimer's disease (AD). However, even if caused by Alzheimer pathology, the clinical manifestations of lv-PPA differ from those observed in the typical or amnestic AD presentation: in lv-PPA, aphasia is the main feature while amnestic AD is characterised by impaired episodic memory. Anomia or impaired naming, however, is present in both AD presentations...
November 5, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/27874176/effects-of-tai-chi-on-cognition-and-fall-risk-in-older-adults-with-mild-cognitive-impairment-a-randomized-controlled-trial
#4
Somporn Sungkarat, Sirinun Boripuntakul, Nipon Chattipakorn, Kanokwan Watcharasaksilp, Stephen R Lord
OBJECTIVES: To examine whether combined center- and home-based Tai Chi training can improve cognitive ability and reduce physiological fall risk in older adults with amnestic mild cognitive impairment (a-MCI). DESIGN: Randomized controlled trial. SETTING: Chiang Mai, Thailand. PARTICIPANTS: Adults aged 60 and older who met Petersen's criteria for multiple-domain a-MCI (N = 66). INTERVENTION: Three weeks center-based and 12 weeks home-based Tai Chi (50 minutes per session, 3 times per week)...
November 22, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27872929/magnetic-iron-oxide-modified-pyropheophorbide-a-fluorescence-nanoparticles-as-photosensitizers-for-photodynamic-therapy-against-ovarian-cancer-skov-3-cells
#5
Guanghui Tan, Wenting Li, Jianjun Cheng, Zhiqiang Wang, Shuquan Wei, Yingxue Jin, Changhong Guo, Fengyu Qu
Magnetic iron oxide modified pyropheophorbide-a fluorescence nanoparticles, Fe3O4@SiO2@APTES@PPa (FSAP), were designed as magnetically targeted photodynamic antineoplastic agents and prepared through continuous covalent chemical modification on the surface of Fe3O4 nanoparticles. The properties of the intermediates and the final product were comprehensively characterized by transmission electron microscopy, powder X-ray diffraction analysis, Fourier transform infrared spectroscopy, vibrating sample magnetometry, zeta potential measurement, ultraviolet-visible absorption spectroscopy, fluorescence emission spectroscopy, and thermogravimetric analysis...
November 30, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27867659/ganglion-cell-inner-plexiform-layer-peripapillary-retinal-nerve-fiber-layer-and-macular-thickness-in-eyes-with-myopic-%C3%AE-zone-parapapillary-atrophy
#6
Jin-Woo Kwon, Jin A Choi, Jung-Sub Kim, Tae Yoon La
Purpose. To assess the correlations of myopic β-zone parapapillary atrophy (β-PPA) with the optic nerve head (ONH) and retina. Methods. We selected 27 myopic patients who showed prominent β-PPA in one eye and no β-PPA in the other eye. We studied their macula, macular ganglion cell-inner plexiform layer (mGCIPL), peripapillary retinal nerve fiber layer (pRNFL) thickness, and ONH parameters using optical coherence tomography. Results. The average of five out of six sectors and minimum values of mGCIPL thicknesses in eyes with prominent β-PPA discs were significantly less than those of the control eyes...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27862969/mediation-of-oxidative-stress-in-hypothalamic-ghrelin-associated-appetite-control-in-rats-treated-with-phenylpropanolamine
#7
Ching-Han Yu, Shu-Chen Chu, Pei-Ni Chen, Yih-Shou Hsieh, Dong-Yih Kuo
Phenylpropanolamine (PPA)-induced appetite control is associated with oxidative stress in the hypothalamus. This study explored whether hypothalamic antioxidants participated in hypothalamic ghrelin system-associated appetite control in PPA-treated rats. Rats were given PPA daily for 4 days, and changes in food intake and the expression of neuropeptide Y (NPY), the cocaine- and amphetamine-regulated transcript (CART), superoxide dismutase (SOD), catalase, ghrelin, acyl ghrelin (AG), ghrelin O-acyltransferase (GOAT), and the ghrelin receptor (GHSR1a) were examined and compared...
November 8, 2016: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/27858708/cerebrospinal-fluid-biomarkers-as-a-diagnostic-tool-of-the-underlying-pathology-of-primary-progressive-aphasia
#8
George P Paraskevas, Dimitrios Kaselimis, Evie Kourtidou, Vasilios Constantinides, Anastasia Bougea, Costas Potagas, Ioannis Evdokimidis, Elisabeth Kapaki
BACKGROUND: Primary progressive aphasia (PPA) may present with three main clinical variants, namely nonfluent agrammatic (nfaPPA), semantic (sPPA), and logopenic (lPPA) subtypes. Frontotemporal lobar degenerations (FTLD) or Alzheimer's disease (AD) are the most common etiologies. OBJECTIVE: To study the potential of cerebrospinal fluid (CSF) biomarkers for identifying the underlying pathology in patients with PPA. METHODS: CSF levels of total tau protein (τT), amyloid-β peptide (Aβ42), and tau phosphorylated at threonine-181 (τP - 181) were measured by double sandwich, enzyme-linked immunosorbent assay (ELISA) in 43 patients with PPA, 26 patients with AD, and 17 healthy controls...
November 14, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27851793/two-step-production-of-phenylpyruvic-acid-from-l-phenylalanine-by-growing-and-resting-cells-of-engineered-escherichia-coli-process-optimization-and-kinetics-modeling
#9
Ying Hou, Gazi Sakir Hossain, Jianghua Li, Hyun-Dong Shin, Long Liu, Guocheng Du, Jian Chen
Phenylpyruvic acid (PPA) is widely used in the pharmaceutical, food, and chemical industries. Here, a two-step bioconversion process, involving growing and resting cells, was established to produce PPA from l-phenylalanine using the engineered Escherichia coli constructed previously. First, the biotransformation conditions for growing cells were optimized (l-phenylalanine concentration 20.0 g·L-1, temperature 35°C) and a two-stage temperature control strategy (keep 20°C for 12 h and increase the temperature to 35°C until the end of biotransformation) was performed...
2016: PloS One
https://www.readbyqxmd.com/read/27829907/microwave-assisted-cyclizations-promoted-by-polyphosphoric-acid-esters-a-general-method-for-1-aryl-2-iminoazacycloalkanes
#10
Jimena E Díaz, María C Mollo, Liliana R Orelli
The first general procedure for the synthesis of 5 to 7-membered 1-aryl-2-iminoazacycloalkanes is presented, by microwave-assisted ring closure of ω-arylaminonitriles promoted by polyphosphoric acid (PPA) esters. 1-Aryl-2-iminopyrrolidines were easily prepared from the acyclic precursors employing a chloroformic solution of ethyl polyphosphate (PPE). The use of trimethylsilyl polyphosphate (PPSE) in solvent-free conditions allowed for the synthesis of 1-aryl-2-iminopiperidines and hitherto unreported 1-aryl-2-iminoazepanes...
2016: Beilstein Journal of Organic Chemistry
https://www.readbyqxmd.com/read/27827444/associated-factors-for-visibility-and-width-of-retrobulbar-subarachnoid-space-on-swept-source-optical-coherence-tomography-in-high-myopia
#11
Hua Fan, Hongjie Ma, Rulong Gao, Danny Siu-Chun Ng, Carol Y Cheung, Shuangnong Li, Dezheng Wu, Shibo Tang
Subarachnoid space (SAS) around optic nerve can be visible with swept-source optical coherence tomography (SS-OCT). However, the relevant factors for its visibility and width have not been reported. In this prospective study, 193 eyes with high myopia were evaluated by SS-OCT. The relationship between age, gender, axial length, optic disc area, parapapillary atrophy (PPA) area, peripapillary choroidal thickness with the visibility and width of SAS were assessed. The results showed that SAS was observed in 125 (64...
November 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27822493/two-distinct-scene-processing-networks-connecting-vision-and-memory
#12
Christopher Baldassano, Andre Esteva, Li Fei-Fei, Diane M Beck
A number of regions in the human brain are known to be involved in processing natural scenes, but the field has lacked a unifying framework for understanding how these different regions are organized and interact. We provide evidence from functional connectivity and meta-analyses for a new organizational principle, in which scene processing relies upon two distinct networks that split the classically defined parahippocampal place area (PPA). The first network of strongly connected regions consists of the occipital place area/transverse occipital sulcus and posterior PPA, which contain retinotopic maps and are not strongly coupled to the hippocampus at rest...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27820632/dna-duplex-based-photodynamic-molecular-beacon-for-targeted-killing-of-retinoblastoma-cell
#13
Yanchun Wei, Cuixia Lu, Qun Chen, Da Xing
Purposes: Retinoblastoma (RB) is the most common primary intraocular malignancy of infancy. An alternative RB treatment protocol is proposed and tested. It is based on a photodynamic therapy (PDT) with a designed molecular beacon that specifically targets the murine double minute x (MDMX) high-expressed RB cells. Methods: A MDMX mRNA triggered photodynamic molecular beacon is designed by binding a photosensitizer molecule (pyropheophorbide-a, or PPa) and a black hole quencher-3 (BHQ3) through a complementary oligonucleotide sequence...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27815682/amyloid-pet-in-primary-progressive-aphasia-case-series-and-systematic-review-of-the-literature
#14
Alberto Villarejo-Galende, Sara Llamas-Velasco, Adolfo Gómez-Grande, Verónica Puertas-Martín, Israel Contador, Pilar Sarandeses, Marta González-Sánchez, Rocío Trincado, Patrick Pilkington, Sebastián Ruiz-Solis, David A Pérez-Martínez, Alejandro Herrero-San Martín
Primary progressive aphasia (PPA) is considered a heterogeneous syndrome, with different clinical subtypes and neuropathological causes. Novel PET biomarkers may help to predict the underlying neuropathology, but many aspects remain unclear. We studied the relationship between amyloid PET and PPA variant in a clinical series of PPA patients. A systematic review of the literature was performed. Patients with PPA were assessed over a 2-year period and classified based on language testing and the International Consensus Criteria as non-fluent/agrammatic (nfvPPA), semantic (svPPA), logopenic variant (lvPPA) or as unclassifiable (ucPPA)...
November 4, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27814472/phase-iii-randomised-chemoprevention-study-with-selenium-on-the-recurrence-of-non-invasive-urothelial-carcinoma-the-selenium-and-bladder-cancer-trial
#15
Maria E Goossens, Maurice P Zeegers, Hendrik van Poppel, Steven Joniau, Koen Ackaert, Filip Ameye, Ignace Billiet, Johan Braeckman, Alex Breugelmans, Jochen Darras, Kurt Dilen, Lieven Goeman, Bertrand Tombal, Siska Van Bruwaene, Ben Van Cleyenbreugel, Frank Van der Aa, Kris Vekemans, Frank Buntinx
BACKGROUND: In Belgium, bladder cancer (BC) is the fifth most common cancer in men. The per-patient lifetime cost is high. Previous epidemiological studies have consistently reported that selenium concentrations were inversely associated with the risk of BC. We therefore hypothesised that selenium may be suitable for chemoprevention of recurrence of BC. METHOD: The Selenium and Bladder Cancer Trial (SELEBLAT) was an academic phase III placebo-controlled, double-blind, randomised clinical trial designed to determine the effect of selenium on recurrence of non-invasive urothelial carcinoma conducted in 14 Belgian hospitals...
October 28, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27802488/in-vivo-3-dimensional-strain-mapping-confirms-large-optic-nerve-head-deformations-following-horizontal-eye-movements
#16
Xiaofei Wang, Meghna R Beotra, Tin Aung Tun, Mani Baskaran, Shamira Perera, Tin Aung, Nicholas G Strouthidis, Dan Milea, Michaël J A Girard
Purpose: To measure lamina cribrosa (LC) strains (deformations) following abduction and adduction in healthy subjects and to compare them with those resulting from a relatively high acute intraocular pressure (IOP) elevation. Methods: A total of 16 eyes from 8 healthy subjects were included. Among the 16 eyes, 11 had peripapillary atrophy (PPA). For each subject, both optic nerve heads (ONHs) were imaged using optical coherence tomography (OCT) at baseline (twice), in different gaze positions (adduction and abduction of 20°) and following an acute IOP elevation of approximately 20 mm Hg from baseline (via ophthalmodynamometry)...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27797396/domino-doxycycline-40mg-vs-minocycline-100mg-in-the-treatment-of-rosacea-a-randomised-single-blinded-non-inferiority-trial-comparing-efficacy-and-safety
#17
M M D van der Linden, A R van Ratingen, D C van Rappard, S A Nieuwenburg, Ph I Spuls
BACKGROUND: There is lack of evidence for minocycline in the treatment of rosacea. OBJECTIVES: To compare the efficacy and safety of doxycycline 40mg versus minocycline 100mg in papulopustular rosacea. METHODS: In this randomised single centre, 1:1 allocation, assessor blinded, non-inferiority trial, patients with a mild to severe papulopustular rosacea, were randomly allocated to either oral doxycycline 40mg or minocycline 100mg for a 16-week period with 12 weeks of follow up...
October 31, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27794494/a-non-viral-suicide-gene-delivery-system-traversing-the-blood-brain-barrier-for-non-invasive-glioma-targeting-treatment
#18
Shiqian Gao, Huayu Tian, Zhenkai Xing, Dawei Zhang, Ye Guo, Zhaopei Guo, Xiaojuan Zhu, Xuesi Chen
Herpes simplex virus type I thymidine kinase gene (HSV-TK) in viral vector is a promising strategy against glioblastoma multiforme (GBM). However, the biosafety risk restricts its application in clinic. In this work, poly (l-lysine)-grafted polyethylenimine (PEI-PLL), which combines the high transfection efficiency of polyethylenimine and the good biodegradability of poly (l-lysine), was adopted as the non-viral vector backbone. Angiopep-2, a blood brain barrier (BBB) crossing and glioma targeting bifunctional peptide was conjugated on PEI-PLL via polyethyleneglycol (PEG) and designated as PPA...
October 26, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27790240/lack-of-frank-agrammatism-in-the-nonfluent-agrammatic-variant-of-primary-progressive-aphasia
#19
Naida L Graham, Carol Leonard, David F Tang-Wai, Sandra Black, Tiffany W Chow, Chris J M Scott, Alicia A McNeely, Mario Masellis, Elizabeth Rochon
BACKGROUND/AIMS: Frank agrammatism, defined as the omission and/or substitution of grammatical morphemes with associated grammatical errors, is variably reported in patients with nonfluent variant primary progressive aphasia (nfPPA). This study addressed whether frank agrammatism is typical in agrammatic nfPPA patients when this feature is not required for diagnosis. METHOD: We assessed grammatical production in 9 patients who satisfied current diagnostic criteria...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27785377/peroxy-pyruvic-acid-containing-topical-anti-infective-a-potential-candidate-for-a-wound-instillation-solution
#20
Edwin D Neas, Julie A Dunn, Evelyn Dimaano Silva, A Morgan Chambers, Gary J Luckasen, Adam Jaskowiak
Objective: Evaluate the therapeutic properties of a peroxy pyruvic acid (PPA)-containing topical anti-infective in a human ex-vivo model that replicates the natural conditions of a human chronic wound. Approach: Wound material was extracted from patients with nonhealing diabetic ulcers, venous stasis ulcers, and arterial wounds. Microbial species were identified, and wound colonization was quantified. Extracted samples were then exposed to a PPA-containing topical anti-infective as an instillation solution with negative pressure wound therapy NPWT at concentrations of 1,000, 1,500, or 2,500 ppm for a period of 1, 5, or 10 min to determine the effect of exposure on isolated pathogens, including effect on proteins...
October 1, 2016: Advances in Wound Care
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