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https://www.readbyqxmd.com/read/29155373/imaging-depression-new-biological-markers-may-mean-more-targeted-treatments-are-just-over-the-horizon
#1
Jennifer Berglund
On a balmy evening in mid-May 2017, Chris Cornell, the legendary head of the internationally renowned rock band Soundgarden, strummed his last chord at the Fox Theater in Detroit and headed to the MGM Grand Hotel. According to the police report, he swallowed a few tablets of the antidepression drug Ativan in his room and called his wife. "I'm just tired," he said and hung up the phone. Later that night, at the request of his concerned wife, his bodyguard forced open Cornell's door to discover him on the bathroom floor, an exercise band tied around his neck...
November 2017: IEEE Pulse
https://www.readbyqxmd.com/read/29153286/combined-transaortic-and-transapical-approach-to-septal-myectomy-in-patients-with-complex-hypertrophic-cardiomyopathy
#2
Dustin Hang, Hartzell V Schaff, Steve R Ommen, Joseph A Dearani, Rick A Nishimura
OBJECTIVES: Residual midventricular obstruction after transaortic myectomy may lead to recurrent symptoms and reoperation in patients with hypertrophic cardiomyopathy and long-segment septal hypertrophy. A combined transaortic and transapical approach to septal myectomy during initial operation allows for the complete relief of subaortic and midventricular gradients and may reduce the risk of poor late functional results. METHODS: We analyzed the early outcomes of 86 patients aged 18 years or more who underwent combined transaortic and transapical septal myectomy for left ventricular outflow tract obstruction due to systolic anterior motion and midventricular obstruction or cavitary obliteration due to apical hypertrophic cardiomyopathy...
October 27, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29140802/characterization-with-scanning-electron-microscopy-energy-dispersive-x-ray-spectrometry-of-microtraces-from-the-ligature-mean-in-hanging-mechanical-asphyxia-a-series-of-forensic-cases
#3
Francesca Maghin, Salvatore Ambrogio Andreola, Michele Boracchi, Guendalina Gentile, Francesca Maciocco, Riccardo Zoja
The authors applied scanning electron microscopy with energy-dispersive x-ray spectrometry to the furrow derived from hanging means. The study was conducted with the purpose to detect possible extraneous microtraces, deriving from the ligature, that could have had an interaction with the cutaneous biological matrix, thanks to a transfert mechanism, in the proximities of the lesion.Fifteen cutaneous samples of the furrow and an equal number of fragments of graphite tape, directly positioned on the lesion produced by the ligature mean and used as a "conductor" of possible traces, were analyzed using scanning electron microscopy with energy-dispersive x-ray spectrometry...
November 15, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29133197/inhibition-of-leukotriene-b4-synthesis-protects-against-early-brain-injury-possibly-via-reducing-the-neutrophil-generated-inflammatory-response-and-oxidative-stress-after-subarachnoid-hemorrhage-in-rats
#4
Zhen-Nan Ye, Ling-Yun Wu, Jing-Peng Liu, Qiang Chen, Xiang-Sheng Zhang, Yue Lu, Meng-Liang Zhou, Wei Li, Zi-Huan Zhang, Da-Yong Xia, Zong Zhuang, Chun-Hua Hang
Leukotriene B4 (LTB4) is a highly potent neutrophil chemoattractant and neutrophils induces inflammatory response and oxidative stress when they recruit to and infiltrate in the injuried/inflamed site, such as the brain parenchyma after aneurysmal subarachnoid hemorrhage (SAH). This study is to investigate the potential effects of inhibition of LTB4 synthesis on neutrophil recruitment, inflammatory response and oxidative stress, as well as early brain injury (EBI) in rats after SAH. A pre-chiasmatic cistern SAH model of rats was used in this experiment...
November 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29132927/whole-exome-sequencing-identified-a-pathogenic-mutation-in-ryr2-in-a-chinese-family-with-unexplained-sudden-death
#5
Yubi Lin, Siqi He, Zili Liao, Ruiling Feng, Ruilin Liu, Yongzheng Peng, Nan Yu, Hang Qi, Jia Chen, Zifeng Huang, Heping Lei, Yang Liu, Fang Rao, Chunyu Deng, Yumei Xue, Guolin Zhang, Bin Zhang, Hua Yao, Shulin Wu
OBJECTIVE: This study aimed to identify the pathogenic mutation in a Chinese family with unexplained sudden death (USD) or occasional syncope. MATERIALS AND METHODS: Whole exome sequencing and target capture sequencing were respectively conducted for two related patients. The genetic data was screened using the 1000 genomes project and SNP database (PubMed), and the identified mutations were assessed for predicted pathogenicity using the SIFT and Polyphen-2 algorithms...
October 10, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29113699/involvement-of-caspase-4-in-il-1-beta-production-and-pyroptosis-in-human-macrophages-during-dengue-virus-infection
#6
Ka Tik Cheung, Daniel Man-Yuen Sze, Kwok Hung Chan, Polly Hang-Mei Leung
Caspase-4 physically interacts with caspase-1 and is believed to be a proinflammatory caspase that can induce the inflammatory form of programmed cell death (pyroptosis) and the release of mature interleukin (IL)-1β. However, the function of caspase-4 in dengue virus infection is not yet fully understood. We examined the function of caspase-4 in IL-1β production and pyroptosis during dengue virus serotype-2 (DENV-2) infection in human macrophages. In this study, DENV-2 infection increased IL-1β protein level with activated caspase-4 activity...
October 26, 2017: Immunobiology
https://www.readbyqxmd.com/read/29113343/pp2a-mediates-apoptosis-or-autophagic-cell-death-in-multiple-myeloma-cell-lines
#7
Hang Zhou, Wei Luo, Chao Zeng, Yu Zhang, Liyang Wang, Wenxiu Yao, Chunlai Nie
The crosstalk between apoptosis and autophagy contributes to tumorigenesis and cancer therapy. The process by which BetA (betulinic acid), a naturally occurring triterpenoid, regulates apoptosis and autophagy as a cancer therapy is unclear. In this study, we show for the first time that protein phosphatase 2A (PP2A) acts as a switch to regulate apoptosis and autophagic cell death mediated by BetA. Under normal conditions, caspase-3 is activated by the mitochondrial pathway upon BetA treatment. Activated caspase-3 cleaves the A subunit of PP2A (PP2A/A), resulting in the association of PP2A and Akt...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29095106/deletion-of-the-nicotinic-acetylcholine-receptor-subunit-gene-d%C3%AE-1-confers-insecticide-resistance-but-at-what-cost
#8
Jason Somers, Hang Ngoc Bao Luong, Philip Batterham, Trent Perry
Nicotinic acetylcholine receptors (nAChRs) have vital functions in processes of neurotransmission that underpin key behaviors. These pentameric ligand-gated ion channels have been used as targets for insecticides that constitutively activate them, causing the death of insect pests. In examining a knockout of the Dα1 nAChR subunit gene, our study linked this one subunit with multiple traits. We were able to confirm previous work that had identified Dα1 as a target of the neonicotinoid class of insecticides...
November 2, 2017: Fly
https://www.readbyqxmd.com/read/29082445/effects-of-over-expression-of-sod2-in-bone-marrow-derived-mesenchymal-stem-cells-on-traumatic-brain-injury
#9
Xiaodong Shi, Yunan Bai, Guodong Zhang, Yuguang Liu, Hang Xiao, Xiaogang Liu, Wei Zhang
Intravenous administration of bone marrow-derived mesenchymal stem cells (BM-MSCs) has been shown to promote nerve cell regeneration following traumatic brain injury (TBI). As the anti-oxidant defense systems in neuronal tissue including superoxide dismutase 2 (SOD2) are crucial to defend cell against oxidative stress. We proposed a new stratege to increase the therapeutic effect of MSCs by preventing cells death from oxidative stress. We overexpressed SOD2 in BM-MSCs, transplanted these MSCs into TBI model mice, assessed the protective effect of SOD2 against oxidation-induced apoptosis in BM-MSCs both in vitro and in vivo, evaluated brain functional recovery by the rotarod behavioral test, and tested the oxidation status of TBI mice brain after BM-MSCs transplantation by monitoring the superoxide dismutase, glutathione and malonaldehyde level...
October 30, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/29068811/forensic-features-of-clothing-related-deaths-historical-and-cultural-aspects
#10
Roger W Byard
Clothing may both cause death and contribute to ongoing lethal mechanisms by a variety of quite disparate mechanisms. The manner of death may be accidental, suicidal, or homicidal. Accidental deaths include burning from clothing catching on fire, strangulation from clothing tangling in vehicle wheels or exposed machinery, and drowning. Entanglement of clothing in machinery may also result in significant injuries, which are not uncommon in farming communities. Excessive clothing, or its absence, may significantly alter body temperature, and hanging from clothing is a feature in the young or in mentally or physically handicapped adults, or in adults who are intoxicated with alcohol or drugs...
December 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29061127/the-underlying-reasons-for-very-high-levels-of-bed-net-use-and-higher-malaria-infection-prevalence-among-bed-net-users-than-non-users-in-the-tanzanian-city-of-dar-es-salaam-a-qualitative-study
#11
Daniel Msellemu, Aloysia Shemdoe, Christina Makungu, Yeromini Mlacha, Khadija Kannady, Stefan Dongus, Gerry F Killeen, Angel Dillip
BACKGROUND: Bed nets reduce malaria-related illness and deaths, by forming a protective barrier around people sleeping under them. When impregnated with long-lasting insecticide formulations they also repel or kill mosquitoes attempting to feed upon sleeping humans, and can even suppress entire populations of malaria vectors that feed predominantly upon humans. Nevertheless, an epidemiological study in 2012 demonstrated higher malaria prevalence among bed net users than non-users in urban Dar es Salaam, Tanzania...
October 23, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29059707/judicial-murder-suicides-in-van-diemen-s-land
#12
Roger W Byard, Hamish Maxwell Stewart
On the morning of December 17, 1827, nine convicts were executed by public hanging in Hobart Town, the capital of the British colony of Van Diemen's Land (now the Australian state of Tasmania). Two months previously they had drowned senior Constable George Rex on Small Island, which was part of the penal settlement at Macquarie Harbor, in front of five bound and gagged witnesses. They offered no defence at their trial. Examination of the Tasmanian colonial convict records shows that "suicide by lottery" involved convicts choosing two men, one to die and the other to kill him...
October 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29048676/decreased-expression-of-the-augmenter-of-liver-regeneration-results-in-growth-inhibition-and-increased-chemosensitivity-of-acute-t-lymphoblastic-leukemia-cells
#13
Yan Shen, Qi Liu, Shifeng Lou, Yun Luo, Hang Sun, Hanqing Zeng, Jianchuan Deng
Augmenter of liver regeneration (ALR) plays crucial roles in cell survival and growth. Previous studies have demonstrated that ALR exerts a protective effect on toxic agent‑induced cell death in acute T lymphoblastic leukemia cells and ALR knockdown can sensitize cancer cells to radiation. However, the biological functions of ALR against drug resistance in T-cell acute lymphoblastic leukemia are mostly unknown. In the present study, we investigated the effect of small interfering RNA (siRNA)-induced ALR silencing on cell proliferation and sensitivity to vincristine (VCR) of Jurkat cells...
September 21, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29039078/the-neuroprotective-effects-of-hydro-alcoholic-extract-of-olive-olea-europaea-l-leaf-on-rotenone-induced-parkinson-s-disease-in-rat
#14
Maryam Sarbishegi, Enam Alhagh Charkhat Gorgich, Ozra Khajavi, Gholamreza Komeili, Saeedeh Salimi
Parkinson's disease (PD) is an age-related disease in which dopaminergic neurons in the nigrostriatal pathway are destroyed, resulting in movement and behavioral problems. Oxidative stress and the generation of reactive oxygen species play key roles in neurodegenerative diseases, such as PD. Rotenone (ROT) is a common pesticide that induces oxidative stress. Olive leaves extract (OLE) has antioxidant and neuroprotective effects. Thus, the aim of this study was to investigate the neuroprotective effects of OLE on ROT-induced oxidative stress in the midbrain of a rat model of PD...
October 16, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29035889/inhibition-of-suicidal-erythrocyte-death-by-volasertib
#15
Abdulla Al Mamun Bhuyan, A K M Ashiqul Haque, Itishri Sahu, Hang Cao, Michael S D Kormann, Florian Lang
BACKGROUND/AIMS: The Polo-like kinase 1 (Plk1) inhibitor volasertib is used in the treatment of malignancy. Volasertib is partially effective by triggering suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal cell death or eryptosis, which is characterized by cell membrane scrambling with phosphatidylserine translocation to the cell surface and by cell shrinkage. Stimulators of eryptosis include energy depletion, hyperosmotic shock, oxidative stress and excessive increase of cytosolic Ca2+ activity ([Ca2+]i)...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29034647/seasonality-in-violent-and-nonviolent-methods-of-suicide-attempts-a-cross-sectional-study-on-systematic-registry-data
#16
Yousef Veisani, Ali Delpisheh, Kourosh Sayehmiri, Ghobad Moradi, Jafar Hassanzadeh
Little attention has been paid to seasonality in suicide in Iran. Time pattern in suicide deaths and suicide attempts for some related factors such as gender, mental disorders has been found. In present study, we focus on suicide methods and the association with seasonality and other putative covariates such as gender. Through a cross-sectional study, overall identified suicide attempts and suicide deaths in the province of Ilam from 1 January 2010 and 31 December 2014 were enrolled. We used Edwards' test for test of seasonality in suicide methods...
August 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/29024951/bans-of-who-class-i-pesticides-in-bangladesh-suicide-prevention-without-hampering-agricultural-output
#17
Fazle Rabbi Chowdhury, Gourab Dewan, Vasundhara R Verma, Duleeka W Knipe, Ishrat Tahsin Isha, M Abul Faiz, David J Gunnell, Michael Eddleston
Background: Pesticide self-poisoning is a major problem in Bangladesh. Over the past 20-years, the Bangladesh government has introduced pesticide legislation and banned highly hazardous pesticides (HHPs) from agricultural use. We aimed to assess the impacts of pesticide bans on suicide and on agricultural production. Methods: We obtained data on unnatural deaths from the Statistics Division of Bangladesh Police, and used negative binomial regression to quantify changes in pesticide suicides and unnatural deaths following removal of WHO Class I toxicity HHPs from agriculture in 2000...
August 18, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29019723/accidental-hanging-injuries-in-children-recognition-and-management
#18
Siba P Paul, Ruby Paul, Paul A Heaton
Accidental hanging is rare in childhood but is often fatal. Window blind cords pose a particular and unique risk to young children in the UK, accounting for one to two deaths annually. These accidents are frequently associated with non-adherence to the safety instructions provided by the manufacturers. Early discovery of the child and initiation of effective cardiopulmonary resuscitation at the site of the incident are likely to improve the outcome. Prolonged suspension, children who are pulseless at first contact by the emergency paramedic responder, and patients with prolonged periods of remaining in asystole before return of spontaneous circulation after starting cardiopulmonary resuscitation are unlikely to have intact neurological survival...
October 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/29017474/the-disease-burden-of-suicide-in-ecuador-a-15%C3%A2-years-geodemographic-cross-sectional-study-2001-2015
#19
Esteban Ortiz-Prado, Katherine Simbaña, Lenin Gómez, Aquiles R Henriquez-Trujillo, Fernando Cornejo-Leon, Eduardo Vasconez, Diana Castillo, Ginés Viscor
BACKGROUND: Suicide affects people from different backgrounds, ethnical groups, socio-economic status and geographical locations. In Latin America, suicide reports arescarce, specially in Andean countries. In Ecuador, very few reports have partially described this phenomenon, nonetheless, estimation of the burden of disease (BoD) hasnever been reported in the country. METHODS: A country-wide comparison was performed using the Ministry of Public Health's national databases of overall mortality, Hospital Discharges Database, and the Population Census of the National Institute of Census and Statistics (INEC)...
October 10, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28994483/-clemency-on-the-way-to-the-gallows-death-dreams-and-dissociation
#20
Kenneth Kimmel
The survivor of a decade of childhood sexual trauma and violence, perpetrated by a monstrous father, produced a series of dreams in the final year of a ten-year analysis. They illuminated the 'death drive' beneath a lifelong preoccupation with dying and fantasies of submission to death, perpetuated by the promise of hoped-for freedom from pain and release from a life of suffering. The initial dream involved the collapse of a team of white horses drawing him in a pillory cart to his own hanging for a crime he did not commit...
November 2017: Journal of Analytical Psychology
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