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https://www.readbyqxmd.com/read/29793180/insulin-is-a-potential-antioxidant-for-diabetes-associated-cognitive-decline-via-regulating-nrf2-dependent-antioxidant-enzymes
#1
Ying Song, Wei Ding, Yun Bei, Yan Xiao, Hai-Da Tong, Li-Bo Wang, Li-Yao Ai
PURPOSE: To investigate the neuroprotective effects of insulin on diabetic encephalopathy and its mechanism. EXPERIMENTAL AND APPROACH: The diabetic model was established by injection of streptozotocin. Behavior examinations were conducted by the Morris water maze. Histopathological alterations were detected by HE staining. ROS, CAT levels and SOD activity were measured using a microplate reader. In vitro, the viability of wild type and knock-down PC12 cells was detected by MTT assay, the morphology of cells was monitored under a microscope...
May 21, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29792713/gan-nanowire-arrays-for-efficient-optical-read-out-and-optoelectronic-control-of-nv-centers-in-diamond
#2
Martin Hetzl, Jakob Wierzbowski, Theresa Hoffmann, Max Kraut, Verena Zuerbig, Christoph E Nebel, Kai Müller, Jonathan J Finley, Martin Stutzmann
Solid state quantum emitters embedded in a semiconductor crystal environment are potentially scalable platforms for quantum optical networks operated at room temperature. Prominent representatives are nitrogen-vacancy (NV) centers in diamond showing coherent entanglement and interference with each other. However, these emitters suffer from inefficient optical outcoupling from the diamond and from fluctuations of their charge state. Here, we demonstrate the implementation of regular n-type gallium nitride nanowire arrays on diamond as photonic waveguides to tailor the emission direction of surface-near NV centers and to electrically control their charge state in a p-i-n nano-diode...
May 24, 2018: Nano Letters
https://www.readbyqxmd.com/read/29792690/a-general-method-to-increase-stokes-shift-by-introducing-alternating-vibronic-structures
#3
Tian-Bing Ren, Wang Xu, Wei Zhang, Xing-Xing Zhang, Zhi-Yao Wang, Zhen Xiang, Lin Yuan, Xiaobing Zhang
Fluorescent dyes have enabled the progress of the broad biomedical fields. However, many commercially available dyes suffer from small Stokes shifts, resulting in poor signal-to-noise ratio and self-quenching on current microscope configuration. In this work, we have developed a general method to significantly increase the Stokes shifts of common fluorophores. By simply appending a 1,4-diethyl-decahydro-quinoxaline (DQ) moiety onto the conjugated structure, we introduced a vibronic backbone that could facilely expand the Stokes shifts, emission wavelength and photo-stability of eleven different fluorophores by more than 3-fold...
May 24, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29792577/serious-consequences-of-malnutrition-and-delirium-in-frail-older-patients
#4
Elizabeth Rosted, Tatiana Prokofieva, Suzanne Sanders, Martin Schultz
Malnutrition is highly prevalent in geriatric patients and is associated with an increased risk of death. In addition, delirium is a common condition of the older hospitalized patients. As brain has a high nutritional requirement, malnutrition may play an important role in cognitive dysfunction including the development of delirium. This study investigated the association between delirium and malnutrition in frail older patients and the effects on adverse outcomes. It was found that 75% of the patients with delirium suffered from malnutrition indicating that malnutrition contributes to the development of delirium in older hospitalized patients...
May 24, 2018: Journal of Nutrition in Gerontology and Geriatrics
https://www.readbyqxmd.com/read/29792444/automaticity-in-the-recognition-of-nonverbal-emotional-vocalizations
#5
César F Lima, Andrey Anikin, Ana Catarina Monteiro, Sophie K Scott, São Luís Castro
The ability to perceive the emotions of others is crucial for everyday social interactions. Important aspects of visual socioemotional processing, such as the recognition of facial expressions, are known to depend on largely automatic mechanisms. However, whether and how properties of automaticity extend to the auditory domain remains poorly understood. Here we ask if nonverbal auditory emotion recognition is a controlled deliberate or an automatic efficient process, using vocalizations such as laughter, crying, and screams...
May 24, 2018: Emotion
https://www.readbyqxmd.com/read/29792443/sympathy-and-responses-to-suffering-similarity-and-variation-in-china-and-the-united-states
#6
Jennifer L Goetz, Kaiping Peng
Feeling sympathy in response to suffering appears to be a universal human experience, but we know very little about how it is experienced in non-Western cultures. In the present studies, we show that sympathy is a complex emotion that has a distinct appraisal theme of wanting to alleviate suffering and that cultural variation occurs in interpretations of suffering and behavioral responses. In particular, the present studies show that sympathy is conceptualized similarly in both the United States and China (Studies 1 and 2), and that it is elicited by undeserved suffering in both cultures (Study 2), is experienced as unpleasant (Study 2), and motivates a desire to help others (Studies 2, 3, and 4)...
May 24, 2018: Emotion
https://www.readbyqxmd.com/read/29792389/therapist-assisted-vision-therapy-improves-outcome-for-stroke-patients-with-homonymous-hemianopia-alone-or-combined-with-oculomotor-dysfunction
#7
Peter Smaakjær, Signe Tornøe Tødten, Rune Skovgaard Rasmussen
OBJECTIVE: To improve visual performance and perception in stroke patients suffering from visual impairments by the use of therapist-assisted vision therapy. METHODS: This study was an interventional efficacy open-label investigation. The vision therapy was designed to enhance binocular vision, and saccadic ability, and vergence ranges maximally, and for patients with hemianopia also to improve peripheral awareness. The vision training consisted of one lesson a week for 12 weeks carried out by an optometrist and a vision therapist...
May 24, 2018: Neurological Research
https://www.readbyqxmd.com/read/29792353/gastroretentive-raft-liquid-delivery-system-as-a-new-approach-to-release-extension-for-carrier-mediated-drug
#8
Samar M Abouelatta, Ahmed A Aboelwafa, Omaima N El-Gazayerly
Gabapentin (GBP), an antiepileptic and anti-neuropathic agent, suffers from short half-life (5-7 h), has narrow absorption window, and is absorbed via carrier-mediated mechanism resulting in frequent dosing, poor compliance, and poor bioavailability (<60%). Moreover, GBP is a freely water-soluble drug, thus it is considered a challenging candidate to be formulated as extended release dosage form. In this study, raft forming systems were investigated as a potential drug delivery system for prolonging gastric residence time of GBP...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29792263/an-update-on-the-use-of-immunohistochemistry-and-molecular-pathology-in-the-diagnosis-of-pre-invasive-and-malignant-lesions-in-gynecological-oncology
#9
REVIEW
Emmanouil Kalampokas, Fiona Payne, Mahalakshmi Gurumurthy
OBJECTIVE: One of the most common challenges in everyday clinical practice of gynecological oncology is to identify the type and the primary origin of a tumor. This is a crucial step in the management, treatment, prognosis, and survival of patients suffering from a gynecological malignancy. Immunohistochemistry has been widely adopted over the last three decades in pathology laboratories all over the world. Recent advances in our understanding of the differentiation of gynecological tumors based on immunohistochemical expression have resulted in use of immunohistochemistry as a major diagnostic tool in gynecology, for precise tumor classification...
May 21, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29792253/genocide-rape-trauma-a-conceptual-framework-for-understanding-the-psychological-suffering-of-rwandan-survivors
#10
Donatilla Mukamana, Anthony Collins, William E Rosa
In 1994, the Rwandan genocide claimed the lives of approximately 1 million Tutsi and moderate Hutu citizens. Systematic rape was a strategic component of the Hutu extremist plan to eradicate the Tutsi minority population. This involved collective and repeated sexual assaults with brutal violence, public humiliation, and torture. This article maps the ongoing psychological impact on Rwandan genocide rape survivors and identifies implications for international nursing practice. The research formalizes their narratives, identifying a number of interconnected elements that combine to produce myriad forms of chronic psychological suffering in the Rwandan context...
May 1, 2018: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/29792245/the-over-35s-early-intervention-in-psychosis-services-entering-uncharted-territory
#11
Felix Clay, Sophie Allan, Serena Lai, Siona Laverty, Grace Jagger, Cate Treise, Jesus Perez
Aims and methodFollowing the introduction of new standards for early intervention in psychosis (EIP) in England, EIP services are accepting referrals for people aged 35-65. The Cambridgeshire and Peterborough EIP service (CAMEO) aimed to explore the immediate implications for the service, especially with regards to referral numbers and sources. Data were collected from April 2016 to June 2017. RESULTS: Referrals for over-35s represented 25.7% of all new referrals. Fifty per cent of referrals for over-35s were accepted onto caseload (40...
May 24, 2018: BJPsych Bulletin
https://www.readbyqxmd.com/read/29792182/boostme-accurately-predicts-dna-methylation-values-in-whole-genome-bisulfite-sequencing-of-multiple-human-tissues
#12
Luli S Zou, Michael R Erdos, D Leland Taylor, Peter S Chines, Arushi Varshney, Stephen C J Parker, Francis S Collins, John P Didion
BACKGROUND: Bisulfite sequencing is widely employed to study the role of DNA methylation in disease; however, the data suffer from biases due to coverage depth variability. Imputation of methylation values at low-coverage sites may mitigate these biases while also identifying important genomic features associated with predictive power. RESULTS: Here we describe BoostMe, a method for imputing low-quality DNA methylation estimates within whole-genome bisulfite sequencing (WGBS) data...
May 23, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29792172/oral-health-and-orofacial-pain-in-people-with-dementia-admitted-to-acute-hospital-wards-observational-cohort-study
#13
Liza J M van de Rijt, Roxane A F Weijenberg, Alexandra R Feast, Victoria Vickerstaff, Frank Lobbezoo, Elizabeth L Sampson
BACKGROUND: Orofacial pain in people with dementia is difficult to detect, and often under-treated. Our aim was to investigate the prevalence of orofacial pain in people with dementia in acute hospitals in the UK. Secondary aims were to examine oral health status and explore associations between orofacial pain and oral health factors. METHODS: This cross-sectional observational study was carried out in two UK hospitals. Using the Orofacial Pain Scale in Non-Verbal Individuals (OPS-NVI) to identify orofacial pain, 101 participants with dementia, admitted to acute medical wards, were observed for at least 3 min during rest and chewing...
May 23, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29792117/the-rockwood-classification-in-acute-acromioclavicular-joint-injury-does-not-correlate-with-symptoms
#14
J Granville-Chapman, E Torrance, A Rashid, L Funk
PURPOSE: Rockwood classified acromioclavicular (AC) joint injuries by displacement of the joint on radiographs. This classification has driven the management dogma of acute AC dislocation. The correlation between Rockwood grade and symptoms has not been described in acute injury. This study assesses that relationship. METHODS: This series included 77 patients with acute AC joint injury (<6 weeks), treated between 2006 and 2015. Objective and patient-reported measures enabled correlation between clinical measures and Rockwood grade...
May 2018: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/29791943/the-growing-reality-of-the-neurological-complications-of-global-stem-cell-tourism
#15
Katie Julian, Nick Yuhasz, Ethan Hollingsworth, Jaime Imitola
"Stem cell tourism" is defined as the unethical practice of offering unproven cellular preparations to patients suffering from various medical conditions. This phenomenon is rising in the field of neurology as patients are requesting information and opportunities for treatment with stem cells for incurable conditions such as multiple sclerosis and amyotrophic lateral sclerosis, despite their clinical research and experimental designation. Here, we review the recent trends in "stem cell tourism" in both the United States and abroad, and discuss the recent reports of neurological complications from these activities...
April 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29791933/infantile-basal-ganglia-stroke-after-mild-head-trauma-associated-with-mineralizing-angiopathy-of-lenticulostriate-arteries-an-under-recognized-entity
#16
Sandra P Toelle, Tamara Avetisyan, Nune Kuyumjyan, Biayna Sukhudyan, Eugen Boltshauser, Annette Hackenberg
Basal ganglia infarction in young children, mostly after mild head trauma, has been repeatedly reported. The pathogenesis and the risk factors are not fully understood. Lenticulostriate vasculopathy, usually referred to as basal ganglia calcification, is discussed as one of them. We describe five young (7-13 months old on presentation) male children who suffered from hemiparesis due to ischemic stroke of the basal ganglia, four of them after minor head trauma. All of them had calcification in the basal ganglia visible on computed tomography or cranial ultrasound but not on magnetic resonance imaging...
May 23, 2018: Neuropediatrics
https://www.readbyqxmd.com/read/29791757/organ-donation-after-euthanasia-morally-acceptable-under-strict-procedural-safeguards
#17
Gert van Dijk, Rozemarijn van Bruchem-Visser, Inez de Beaufort
In this paper, we will present a case of organ donation after active euthanasia (ODE) in The Netherlands from a patient who had his life ended at his explicit and voluntary request. The form of ODE we describe here concerns patients who are not unconscious and on life support, but who are conscious and want to have their life ended because of their hopeless and unbearable suffering, for instance due to a terminal illness such as Amyotrophic Lateral Sclerosis (ALS) or Multiple Sclerosis (MS). This form of ODE is of course only possible in jurisdictions where euthanasia is allowed...
May 23, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29791510/the-importance-of-manager-support-for-the-mental-health-and-well-being-of-ambulance-personnel
#18
Katherine Petrie, Aimée Gayed, Bridget T Bryan, Mark Deady, Ira Madan, Anita Savic, Zoe Wooldridge, Isabelle Counson, Rafael A Calvo, Nicholas Glozier, Samuel B Harvey
Interventions to enhance mental health and well-being within high risk industries such as the emergency services have typically focused on individual-level factors, though there is increasing interest in the role of organisational-level interventions. The aim of this study was to examine the importance of different aspects of manager support in determining the mental health of ambulance personnel. A cross-sectional survey was completed by ambulance personnel across two Australian states (N = 1,622). Demographics, manager support and mental health measures were assessed...
2018: PloS One
https://www.readbyqxmd.com/read/29791411/optical-nondestructive-dynamic-measurements-of-wafer-scale-encapsulated-nanofluidic-channels
#19
Vladimir Liberman, Melissa Smith, Isaac Weaver, Mordechai Rothschild
Nanofluidic channels are of great interest for DNA sequencing, chromatography, and drug delivery. However, metrology of embedded or sealed nanochannels and measurement of their fill-state have remained extremely challenging. Existing techniques have been restricted to optical microscopy, which suffers from insufficient resolution, or scanning electron microscopy, which cannot measure sealed or embedded channels without cleaving the sample. Here, we demonstrate a novel method for accurately extracting nanochannel cross-sectional dimensions and monitoring fluid filling, utilizing spectroscopic ellipsometric scatterometry, combined with rigorous electromagnetic simulations...
May 20, 2018: Applied Optics
https://www.readbyqxmd.com/read/29791391/effects-of-aberrations-on-effective-point-spread-function-in-sted-microscopy
#20
Yanghui Li, Hui Zhou, Xiaoyu Liu, Yuxue Li, Le Wang
Like other imaging techniques, stimulated emission depletion (STED) microscopy suffers from aberrations. While their effects on depletion patterns have been explicitly investigated, the study on how aberrations affect the effective point spread function (PSF) in STED microscopy is still missing. For STED researchers, however, this study is beneficial, as it directly bridges image qualities and aberrations. In this paper, we quantitatively analyze the effects of primary aberrations, including astigmatism, coma, trefoil, and spherical aberration, in two-dimensional (2D) and three-dimensional (3D) STED microscopy, and further discuss the corresponding aberration tolerance...
May 20, 2018: Applied Optics
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