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https://www.readbyqxmd.com/read/29906099/parkinson-s-disease-associated-%C3%AE-synuclein-familial-mutants-promote-dopaminergic-neuronal-death-in-drosophila-melanogaster
#1
Ganesh M Mohite, Saumya Dwivedi, Subhadeep Das, Rakesh Kumar, Sravya Paluri, Surabhi Mehra, Neha Ruhela, Arunima S, Narendra Nath Jha, Samir K Maji
α-Synuclein (α-Syn) aggregation and amyloid formation are associated with loss of dopaminergic neurons in Parkinson's disease (PD). In addition, familial mutations in α-Syn are shown to be one of the definite causes of PD. Here we have extensively studied familial PD associated α-Syn G51D, H50Q and E46K mutations using Drosophila model system. Our data showed that flies expressing α-Syn familial mutants have a shorter lifespan and exhibit more climbing defects compared to wild-type (WT) flies in an age-dependent manner...
June 15, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29693490/fatal-wounding-pattern-and-causes-of-potentially-preventable-death-following-the-pulse-night-club-shooting-event
#2
E Reed Smith, Geoff Shapiro, Babak Sarani
BACKGROUND: Mortality following shooting is related to time to provision of initial and definitive care. An understanding of the wounding pattern, opportunities for rescue, and incidence of possibly preventable death is needed to achieve the goal of zero preventable deaths following trauma. METHODS: A retrospective study of autopsy reports for all victims involved in the Pulse Nightclub Shooting was performed. The site of injury, probable site of fatal injury, and presence of potentially survivable injury (defined as survival if prehospital care is provided within 10 minutes and trauma center care within 60 minutes of injury) was determined independently by each author...
April 25, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29689399/primary-focal-intracranial-leptomeningeal-glioma-pfilg-a-case-report-and-review-of-literature
#3
Vinayak Narayan, Amey Savardekar, Nasser Mohammed, Devi Prasad Patra, Maria-Magdalena Georgescu, Anil Nanda
BACKGROUND: Primary focal intracranial leptomeningeal glioma [PFILG] is considered as a rare solitary glial tumor arising from the leptomeninges without brain attachment or evidence of primary neoplasm elsewhere within the neuraxis. We herein report a case of PFILG in left parietal location with a concise review on its clinico-radiological, histopathological and management characteristics. CASE PRESENTATION: A 75 year old lady presented with focal motor seizures involving right upper limb with associated occasional headache...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29643322/metabolically-healthy-obesity-and-risk-of-leukoaraiosis-a-population-based-cross-sectional-study
#4
Takuro Okamura, Yoshitaka Hashimoto, Masahide Hamaguchi, Akihiro Ohbora, Takao Kojima, Michiaki Fukui
Metabolically healthy obese (MHO) individual is known to be defended from the metabolic complications of obesity. Leukoaraiosis, which is commonly detected on brain magnetic resonance imaging (MRI), is now recognized as a risk of stroke, dementia and death. However, the association between MHO and the prevalence of leukoaraiosis is unclear. In this cross-sectional study of 796 participants who received a medical examination program, we investigated the association between MHO and the prevalence of leukoaraiosis...
April 10, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29607780/brain-death-in-intensive-care-units-problems-differences-in-methods-of-diagnosis-and-donor-care
#5
Aykut Sarıtaş, Burcu Acar Çinleti, Çiler Zincircioğlu, Uğur Uzun, Işıl Köse, Nimet Şenoğlu
OBJECTIVES: Our aim was to investigate the most common problems in diagnosing brain death, the care of the organ donor, and organ donation after death. MATERIALS AND METHODS: A survey was sent randomly to clinicians working in national intensive care units in Turkey. The survey, which consisted of 17 questions for clinicians, had 163 responders. RESULTS: The most common cause of brain death was traumatic brain injury. Although 22% of clinicians found the apnea test necessary for brain death diagnosis, 78% stated that it could be used as an optional confirmatory test...
April 2, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29595449/routine-low-dose-continuous-or-nocturnal-oxygen-for-people-with-acute-stroke-three-arm-stroke-oxygen-supplementation-rct
#6
Christine Roffe, Tracy Nevatte, Jon Bishop, Julius Sim, Cristina Penaloza, Susan Jowett, Natalie Ives, Richard Gray, Phillip Ferdinand, Girish Muddegowda
BACKGROUND: Stroke is a major cause of death and disability worldwide. Hypoxia is common after stroke and is associated with worse outcomes. Oxygen supplementation could prevent hypoxia and secondary brain damage. OBJECTIVES: (1) To assess whether or not routine low-dose oxygen supplementation in patients with acute stroke improves outcome compared with no oxygen; and (2) to assess whether or not oxygen given at night only, when oxygen saturation is most likely to be low, is more effective than continuous supplementation...
March 2018: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/29564192/herpes-simplex-virus-encephalitis-atypical-presentation-as-a-right-middle-cerebral-artery-stroke
#7
Maria Shoaib, Jacqueline J Kraus, Muhammad T Khan
Herpes simplex virus encephalitis (HSVE) is a medical emergency associated with high mortality and morbidity. Definitive diagnosis is established by history, clinical examination, neuroimaging studies, supportive electroencephalogram (EEG) findings, and cerebrospinal fluid (CSF) analysis. We report a case of HSVE presenting as a stroke mimic in a 76-year-old female with a history of atrial fibrillation on warfarin. She was admitted to our medical intensive care unit with intermittent fever, lethargy, and new onset left-sided hemiparesis...
January 15, 2018: Curēus
https://www.readbyqxmd.com/read/29562513/brain-aging-and-late-onset-alzheimer-s-disease-a-matter-of-increased-amyloid-or-reduced-energy
#8
Patrizia Mecocci, Marta Baroni, Umberto Senin, Virginia Boccardi
Alzheimer's disease (AD) represents the most common form of dementia in old age subjects, and despite decades of studies, the underlying etiopathogenetic mechanisms remain unsolved. The definition of AD has changed over the past years, offering an ever more detailed definition of pre-morbid and pre-clinical status, but without a similar strong emphasis on the role of aging as the main risk factor. In fact, while early-onset AD is a clear consequence of gene mutations, late-onset AD is more likely due to a gradual accumulation of age-related damages...
March 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29549848/results-of-lifespan-exposure-to-continuous-and-intermittent-extremely-low-frequency-electromagnetic-fields-elfemf-administered-alone-to-sprague-dawley-rats
#9
L Bua, E Tibaldi, L Falcioni, M Lauriola, L De Angelis, F Gnudi, M Manservigi, F Manservisi, I Manzoli, I Menghetti, R Montella, S Panzacchi, D Sgargi, V Strollo, A Vornoli, D Mandrioli, F Belpoggi
BACKGROUND: Up to now, experimental studies on rodents have failed to provide definitive confirmation of the carcinogenicity of extremely low frequency electromagnetic fields (ELFEMF). Two recent studies performed in our laboratory on Sprague-Dawley rats reported a statistically significant increase in malignant tumors of different sites (mammary gland, C-cells carcinoma, hemolymphoreticular neoplasia, and malignant heart Schwannoma) when ELFEMF exposure was associated with exposure to formaldehyde (50 mg/l) or acute low dose of γ-radiation (0...
July 2018: Environmental Research
https://www.readbyqxmd.com/read/29530541/comparison-of-feature-representations-in-mri-based-mci-to-ad-conversion-prediction
#10
Marta Gómez-Sancho, Jussi Tohka, Vanessa Gómez-Verdejo
Alzheimer's disease (AD) is a progressive neurological disorder in which the death of brain cells causes memory loss and cognitive decline. The identification of at-risk subjects yet showing no dementia symptoms but who will later convert to AD can be crucial for the effective treatment of AD. For this, Magnetic Resonance Imaging (MRI) is expected to play a crucial role. During recent years, several Machine Learning (ML) approaches to AD-conversion prediction have been proposed using different types of MRI features...
March 10, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29511323/phenotype-of-cntnap1-a-study-of-patients-demonstrating-a-specific-severe-congenital-hypomyelinating-neuropathy-with-survival-beyond-infancy
#11
K J Low, K Stals, R Caswell, M Wakeling, J Clayton-Smith, A Donaldson, N Foulds, A Norman, M Splitt, K Urankar, K Vijayakumar, A Majumdar, Ddd Study, S Ellard, S F Smithson
CHN is genetically heterogeneous and its genetic basis is difficult to determine on features alone. CNTNAP1 encodes CASPR, integral in the paranodal junction high molecular mass complex. Nineteen individuals with biallelic variants have been described in association with severe congenital hypomyelinating neuropathy, respiratory compromise, profound intellectual disability and death within the first year. We report 7 additional patients ascertained through exome sequencing. We identified 9 novel CNTNAP1 variants in 6 families: three missense variants, four nonsense variants, one frameshift variant and one splice site variant...
March 6, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29510570/organ-transplantation-in-iran-current-state-and-challenges-with-a-view-on-ethical-consideration
#12
REVIEW
Mehrzad Kiani, Mahmoud Abbasi, Mehdi Ahmadi, Bahare Salehi
Organ transplantation is a new issue in medical science. It is an important achievement and a sign of the progression and ability of medical centers around the world. Governments, populations, the medical community and people involved in culture, art, and media all have a decisive role in the culture of organ donation, which is the only way to guarantee that the healthy organs of a brain-dead person can continue to work and save the lives of people in need of organ transplantation. The brain death phenomenon and its possible application in organ transplantation, while offering new hope for the salvation of a number of patients, has led to many ethical, cultural, and legal issues...
March 5, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29473334/treatment-related-mortality-in-newly-diagnosed-pediatric-cancer-a-population-based-analysis
#13
Paul Gibson, Jason D Pole, Tanya Lazor, Donna Johnston, Carol Portwine, Mariana Silva, Sarah Alexander, Lillian Sung
Using a previously developed reliable and valid treatment-related mortality (TRM) definition, our objective was to describe the proportion of children newly diagnosed with cancer experiencing TRM and to identify risk factors for TRM in a population-based cohort. We included children with cancer <19 years diagnosed and treated in Ontario who were diagnosed between 2003 and 2012. Children with cancer were identified using data in a provincial registry. Cumulative incidence of TRM was calculated where progressive disease death was considered a competing event...
March 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29451153/effects-of-plasma-lipids-and-statins-on-cognitive-function
#14
REVIEW
Rui Li, Tian-Jun Wang, Pei-Yuan Lyu, Yang Liu, Wei-Hong Chen, Ming-Yue Fan, Jing Xu
Objective: Dementia is the fourth most common cause of death in developed countries. The relationship between plasma lipids and cognitive function is complex and controversial. Due to the increasing life expectancy of the population, there is an urgent need to control vascular risk factors and to identify therapies to prevent and treat both cognitive impairment and dementia. Here, we reviewed the effects of plasma lipids and statins on cognitive function. Data Sources: We searched the PubMed database for research articles published through November 2017 with key words including "plasma lipids," "hyperlipidemia," "hypercholesterolemia," "statins," and "cognition function...
February 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29443965/a-molecular-atlas-of-cell-types-and-zonation-in-the-brain-vasculature
#15
Michael Vanlandewijck, Liqun He, Maarja Andaloussi Mäe, Johanna Andrae, Koji Ando, Francesca Del Gaudio, Khayrun Nahar, Thibaud Lebouvier, Bàrbara Laviña, Leonor Gouveia, Ying Sun, Elisabeth Raschperger, Markus Räsänen, Yvette Zarb, Naoki Mochizuki, Annika Keller, Urban Lendahl, Christer Betsholtz
Cerebrovascular disease is the third most common cause of death in developed countries, but our understanding of the cells that compose the cerebral vasculature is limited. Here, using vascular single-cell transcriptomics, we provide molecular definitions for the principal types of blood vascular and vessel-associated cells in the adult mouse brain. We uncover the transcriptional basis of the gradual phenotypic change (zonation) along the arteriovenous axis and reveal unexpected cell type differences: a seamless continuum for endothelial cells versus a punctuated continuum for mural cells...
February 22, 2018: Nature
https://www.readbyqxmd.com/read/29443859/over-resuscitation-with-plasma-is-associated-with-sustained-fibrinolysis-shutdown-and-death-in-pediatric-traumatic-brain-injury
#16
Christine M Leeper, Matthew D Neal, Timothy R Billiar, Jason L Sperry, Barbara A Gaines
BACKGROUND: Elevated INR is a marker of poor outcome but not necessarily bleeding or clinical coagulopathy in injured children. Conversely, children with traumatic brain injury (TBI) tend to be hypercoagulable based on rapid thromboelastography (rTEG) parameters. Many clinicians continue to utilize INR as a treatment target. METHODS: Prospective observational study of severely-injured children age<18 with rTEG on arrival and daily thereafter for up to 7 days...
February 14, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29431872/interventions-to-prevent-hypothermia-at-birth-in-preterm-and-or-low-birth-weight-infants
#17
REVIEW
Emma M McCall, Fiona Alderdice, Henry L Halliday, Sunita Vohra, Linda Johnston
BACKGROUND: Newborn admission temperature is a strong predictor of outcomes across all gestations. Hypothermia immediately after birth remains a worldwide issue and, if prolonged, is associated with harm. Keeping preterm infants warm is difficult even when recommended routine thermal care guidelines are followed in the delivery room. OBJECTIVES: To assess the efficacy and safety of interventions designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room, compared with routine thermal care or any other single/combination of intervention(s) also designed for prevention of hypothermia in preterm and/or low birth weight infants applied within 10 minutes after birth in the delivery room...
February 12, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29429858/-neuropathology-of-sudden-infant-death-syndrome-review-of-the-literature-and-proposal-of-a-protocol-for-neuropathological-examination
#18
Clémence Delteil, David Meyronet, Andre Maues de Paula, Anne Jouvet, Marie-Dominique Piercecchi-Marti
According to the French High Authority for Health, sudden unexpected death in infants (SUDI) is defined as "a sudden death that occurs in an infant, whereas nothing in its known history could have predicted it". This is an exclusion diagnosis. There are great interregional disparities despite the professional recommendations established in February 2007. For the examination of the brain, instructions are not adapted to current and research practice. The role of the pathologist, like anyone involved in SUDI, is to eliminate an abuse head trauma and to determine the cause of death...
April 2018: Annales de Pathologie
https://www.readbyqxmd.com/read/29369063/long-term-outcome-following-decompressive-craniectomy-an-inconvenient-truth
#19
Stephen Honeybul, Kwok M Ho, Grant R Gillett
PURPOSE OF REVIEW: There is little doubt that decompressive craniectomy can reduce mortality following malignant middle cerebral infarction or severe traumatic brain injury. However, the concern has always been that the reduction in mortality comes at the cost of an increase in the number of survivors with severe neurological disability. RECENT FINDINGS: There has been a number of large multicentre randomized trials investigating surgical efficacy of the procedure...
April 2018: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29349556/neuropathology-correlates-of-cognitive-assessments
#20
Francesca M Brett, Hugh Kearney
BACKGROUND: Alzheimer's disease and other dementias are the fourth largest contributors to neurological disability and the second largest contributor to deaths from neurological disease. Described in the 1980s as 'the silent epidemic' these disorders principally, though not exclusively, affect persons 80 years or older, and in developed countries, this 'old old' population continues to grow. Definitive diagnosis of the underlying cause of the neurodegenerative disease relies on neuropathological evaluation...
January 18, 2018: Irish Journal of Medical Science
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