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https://www.readbyqxmd.com/read/28723996/bioethical-dimensions-of-international-cooperation-for-health-still-a-controversial-issue
#1
José Paranaguá de Santana
This essay stresses the importance of undertaking a critical analysis of international cooperation for health based upon reflections on diplomacy, acknowledging the ethical limits and possibilities of cooperation within this context. It emphasizes the importance of adopting an historical perspective, highlighting the circumstances surrounding the consolidation of the current international system, whereby, after two world wars, the victorious countries created the United Nations Organization, which today brings together all the world's nations, notwithstanding the fact that the majority of countries are in favor of significant changes to its institutional framework...
July 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28723938/gender-differences-in-cerebral-metabolism-for-color-processing-in-mice-a-pet-mri-study
#2
Philip C Njemanze, Mathias Kranz, Mario Amend, Jens Hauser, Hans Wehrl, Peter Brust
INTRODUCTION: Color processing is a central component of mammalian vision. Gender-related differences of color processing revealed by non-invasive functional transcranial Doppler ultrasound suggested right hemisphere pattern for blue/yellow chromatic opponency by men, and a left hemisphere pattern by women. MATERIALS AND METHODS: The present study measured the accumulation of [18F]fluorodeoxyglucose ([18F]FDG) in mouse brain using small animal positron emission tomography and magnetic resonance imaging (PET/MRI) with statistical parametric mapping (SPM) during light stimulation with blue and yellow filters compared to darkness condition...
2017: PloS One
https://www.readbyqxmd.com/read/28723912/ginger-and-the-beetle-evidence-of-primitive-pollination-system-in-a-himalayan-endemic-alpine-ginger-roscoea-alpina-zingiberaceae
#3
Babu Ram Paudel, Mani Shrestha, Adrian G Dyer, Qing-Jun Li
The Himalayan endemic alpine genus Roscoea, like other members of ginger family, exhibits the combination of floral traits that would fit pollination by long distant foragers such as bees, birds or flies. We studied the pollination biology of Roscoea alpina, observed potential floral visitors and determined their foraging behaviour, visitation frequency and pollination efficiency, to seek evidence in support of the pollination syndrome hypothesis. We also measured the floral spectra of R. alpina flowers to evaluate if signals fit with the currently known framework for observed floral visitors...
2017: PloS One
https://www.readbyqxmd.com/read/28723849/comparative-analysis-of-retinal-reattachment-surgery-with-or-without-internal-limiting-membrane-peeling-to-prevent-postoperative-macular-pucker
#4
Matteo Forlini, Purva Date, Luisa Micelli Ferrari, Massimo Lorusso, Gabriella Lecce, Tommaso Verdina, Giovanni Neri, Caterina Benatti, Paolo Rossini, Adriana Bratu, Domenico DʼEliseo, Tommaso Micelli Ferrari, Gian Maria Cavallini
PURPOSE: To determine whether internal limiting membrane (ILM) peeling during pars plana vitrectomy for rhegmatogenous retinal detachment reduces the incidence of epiretinal membrane (ERM) formation. METHODS: In this retrospective study, preoperative, intraoperative, and postoperative data from all eyes undergoing pars plana vitrectomy for rhegmatogenous retinal detachment between January 2007 and December 2013 was analyzed. All cases with at least 1-year of follow-up were included...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723787/late-emergence-of-macular-sparing-in-a-stroke-patient-clinical-case-report
#5
Hye-Young Shin, So Hee Kim, Mee Yon Lee, Su Young Kim, Young Chun Lee
RATIONALE: Occlusive cerebrovascular disease is the most common cause of homonymous hemianopia (HH) with macular sparing. PATIENT CONCERNS: A 61-year-old man came to our ophthalmology clinic complaining of right-side hemianopia. Ophthalmic examination, visual field (VF) examination, and brain magnetic resonance imaging (MRI) were performed. DIAGNOSES: He had right HH without macular sparing on the initial VF test. And brain MRI 6 days after the visual symptoms began revealed a left occipital infarction...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723606/visual-snow-syndrome-and-its-relationship-to-tinnitus
#6
Matthew Renze
Visual snow is a symptom described as the continuous perception of tiny flickering dots in the entire field of vision, similar to static of an analog television. Visual snow syndrome is a cluster of symptoms found highly prevalent in patients that present with visual snow. While most of these symptoms appear to be visual in nature, approximately 63% of patients studied also report continuous bilateral tinnitus. The high correlation of visual-snow-syndrome patients presenting with tinnitus suggests that they may share a common underlying pathophysiology...
June 1, 2017: International Tinnitus Journal
https://www.readbyqxmd.com/read/28723311/visual-perceptual-learning-and-models
#7
Barbara Dosher, Zhong-Lin Lu
Visual perceptual learning through practice or training can significantly improve performance on visual tasks. Originally seen as a manifestation of plasticity in the primary visual cortex, perceptual learning is more readily understood as improvements in the function of brain networks that integrate processes, including sensory representations, decision, attention, and reward, and balance plasticity with system stability. This review considers the primary phenomena of perceptual learning, theories of perceptual learning, and perceptual learning's effect on signal and noise in visual processing and decision...
July 19, 2017: Annual Review of Vision Science
https://www.readbyqxmd.com/read/28722378/-a-new-vision-of-skin
#8
Adèle Rakosi, Francois Kuonen, Olivier Gaide
As of today, the skin will never look the same. Indeed, several technologies allowing the observation of the skin at a microscopic level are now coming of age. This magnifies our visual acuity and thus our capacity to recognize various pathological processes. We herein present three different methods of non-invasive skin imaging we have worked with at the CHUV, which revolutionize the practice of dermatology. In vivo confocal microscopy, ex-vivo confocal microscopy and optical coherence tomography are complementary techniques that are now becoming essential for the modern management of skin cancers, among other uses...
March 29, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28721627/two-chinese-pedigrees-of-blau-syndrome-with-thirteen-affected-members
#9
REVIEW
Di Wu, Min Shen
Blau syndrome (BS) is a rare autosomal dominant autoinflammatory disease characterized by the clinical triad of dermatitis, arthritis, and uveitis. It is caused by mutations in nucleotide-binding oligomerization domain-containing protein-2 (NOD2) gene. BS has been widely reported in Caucasians but cases documented in China are scarce. We reported two Chinese families with BS, which were by far the two largest pedigrees in the Chinese population. We identified two unrelated families with BS. The phenotypes and genotypes of these patients were reviewed and compared with previous cohorts...
July 18, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28721603/the-disadapted-animal-niko-tinbergen-on-human-nature-and-the-human-predicament
#10
Marga Vicedo
This paper explores ethologist Niko Tinbergen's path from animal to human studies in the 1960s and 1970s and his views about human nature. It argues, first, that the confluence of several factors explains why Tinbergen decided to cross the animal/human divide in the mid 1960s: his concern about what he called "the human predicament," his relations with British child psychiatrist John Bowlby, the success of ethological explanations of human behavior, and his professional and personal situation. It also argues that Tinbergen transferred his general adaptationist view of animal behavior to the realm of human biology; here, his concern about disadaptation led him to a view of human behavior that was strongly determined by the species' evolutionary past, a position that I call evolutionary determinism...
July 18, 2017: Journal of the History of Biology
https://www.readbyqxmd.com/read/28721517/vision-for-action-and-perception-elicit-dissociable-adherence-to-weber-s-law-across-a-range-of-graspable-target-objects
#11
Matthew Heath, Joseph Manzone, Michaela Khan, Shirin Davarpanah Jazi
A number of studies have reported that grasps and manual estimations of differently sized target objects (e.g., 20 through 70 mm) violate and adhere to Weber's law, respectively (e.g., Ganel et al. 2008a, Curr Biol 18:R599-R601)-a result interpreted as evidence that separate visual codes support actions (i.e., absolute) and perceptions (i.e., relative). More recent work employing a broader range of target objects (i.e., 5 through 120 mm) has laid question to this claim and proposed that grasps for 'larger' target objects (i...
July 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28721111/visual-consequences-of-medications-for-multiple-sclerosis-the-good-the-bad-the-ugly-and-the-unknown
#12
REVIEW
Heather E Moss
Multiple sclerosis (MS) is associated with vision changes both due to MS effects on visual pathways and due to medication effects on the visual pathways. Distinguishing the causes of vision change are critical to appropriate diagnosis and management. The incidence, presentation, and treatment of fingolimod-associated macular edema, alemtuzumab-associated thyroid orbitopathy, and progressive multifocal leukoencephalopathy in MS patients are reviewed. Evidence for beneficial effects of acute, chronic, and symptomatic MS medications on vision is presented...
2017: Eye and Brain
https://www.readbyqxmd.com/read/28720881/patients-with-orthostatic-intolerance-relationship-to-autonomic-function-tests-results-and-reproducibility-of-symptoms-on-tilt
#13
Hyung Lee, Phillip A Low, Hyun Ah Kim
This study was designed to investigate the frequency and pattern of orthostatic symptoms during head-up tilt (HUT) in patients with orthostatic intolerance during daily life, and to identify the relationship between the orthostatic symptoms during HUT and autonomic parameters. We prospectively collected autonomic data from 464 patients with orthostatic symptoms. Adrenergic and cardiovagal function tests including HUT were performed. Based on HUT results, we divided patients into orthostatic hypotension (OH), postural tachycardia syndrome (POTS), or normal HUT groups...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720880/pattern-of-retinal-morphological-and-functional-decay-in-a-light-inducible-rhodopsin-mutant-mouse
#14
Claudia Gargini, Elena Novelli, Ilaria Piano, Martina Biagioni, Enrica Strettoi
Hallmarks of Retinitis Pigmentosa (RP), a family of genetic diseases, are a typical rod-cone-degeneration with initial night blindness and loss of peripheral vision, followed by decreased daylight sight and progressive visual acuity loss up to legal blindness. Great heterogeneity in nature and function of mutated genes, variety of mutations for each of them, variability in phenotypic appearance and transmission modality contribute to make RP a still incurable disease. Translational research relies on appropriate animal models mimicking the genetic and phenotypic diversity of the human pathology...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720803/contingent-sounds-change-the-mental-representation-of-one-s-finger-length
#15
Ana Tajadura-Jiménez, Maria Vakali, Merle T Fairhurst, Alisa Mandrigin, Nadia Bianchi-Berthouze, Ophelia Deroy
Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representations remain poorly understood. Changes in body-representations by the manipulation of natural sounds produced when one's body impacts on surfaces have recently been evidenced. But will these changes also occur with non-naturalistic sounds, which provide no information about the impact produced by or on the body? Drawing on the well-documented capacity of dynamic changes in pitch to elicit impressions of motion along the vertical plane and of changes in object size, we asked participants to pull on their right index fingertip with their left hand while they were presented with brief sounds of rising, falling or constant pitches, and in the absence of visual information of their hands...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720613/retrospective-analysis-of-newly-recorded-certifications-of-visual-impairment-due-to-diabetic-retinopathy-in-wales-during-2007-2015
#16
Rebecca L Thomas, Stephen D Luzio, Rachel V North, Sanjiv Banerjee, Antra Zekite, Catey Bunce, David R Owens
OBJECTIVE: The aim of this study was to analyse the changes in new certifications for both sight impairment (SI) and severe sight impairment (SSI, blindness) in Wales due to diabetic retinopathy (DR)/maculopathy between 2007 and 2015. RESEARCH DESIGN AND METHODS: This is a retrospective analysis of annual data of new certifications for visual impairment and blindness (Certificate of Vision Impairment) for England and Wales derived from the national database provided by the Certifications Office, Moorfields Eye Hospital, over a period of 8 years from 2007...
July 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28720593/vitamin-a-endocrine-tissues-and-hormones-interplay-and-interactions
#17
Julie Brossaud, Veronique Pallet, Jean-Benoit Corcuff
Vitamin A (retinol) is a micronutrient critical for cell proliferation and differentiation. In adults, vitamin A and metabolites such as retinoic acid (RA) play major roles in vision, immune and brain functions, and tissue remodelling and metabolism. This review presents the physiological interactions of retinoids and endocrine tissues and hormonal systems. Two endocrine systems have been particularly studied. In the pituitary, retinoids targets the corticotrophs with a possible therapeutic use in corticotropinomas...
July 18, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28719913/texture-density-adaptation-can-be-bidirectional
#18
Hua-Chun Sun, Frederick A A Kingdom, Curtis L Baker
Texture density has previously been thought of as a scalar attribute on the assumption that texture density adaptation only reduces, not enhances, perceived density (Durgin & Huk, 1997). This "unidirectional" property of density adaptation is in contradistinction to the finding that simultaneous density contrast (SDC) is "bidirectional"; that is, not only do denser surrounds reduce the perceived density of a lower density region, but sparser surrounds enhance it (Sun, Baker, & Kingdom, 2016). Here we reexamine the directionality of density adaptation using random dot patterns and a two-alternative forced choice task in which observers compare the perceived density of adapted test patches with unadapted match stimuli...
July 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28719889/combined-23-g-pars-plana-vitrectomy-and-lensectomy-in-the-management-of-glaucoma-associated-with-nanophthalmos
#19
Zhaotian Zhang, Shaochong Zhang, Xintong Jiang, Yantao Wei
PURPOSE: To investigate the surgical results of 23-G pars plana vitrectomy (PPV) combined with lensectomy (PPL) in nanophthalmic patients with angle closure glaucoma. METHODS: This prospective nonrandomized study included consecutive patients with nanophthalmic glaucoma recruited for 23-G PPV combined with PPL. Best-corrected visual acuity (BCVA), intraocular pressure (IOP), the number of antiglaucoma medications, and surgery-associated complications were recorded...
July 19, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28719871/optic-neuritis-in-pregnancy-after-tdap-vaccination-report-of-two-cases
#20
Jose M Cabrera-Maqueda, Rocio Hernández-Clares, Ana E Baidez-Guerrero, Julian Ignacio Bermúdez Pío-Rendón, Jose J Martín Fernández
Two pregnant women developed one-eye blurring vision within three weeks after Tdap vaccination. Neurophtalmologic and MR examination confirmed an unilateral optic neuritis without evidence of underlying disease. Both patients had a full recovery, one after intravenous metilprednisolone. This is the first report of optic neuritis related with Tdap vaccination in pregnancy.
July 11, 2017: Clinical Neurology and Neurosurgery
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