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https://www.readbyqxmd.com/read/28548920/evaluation-of-biofidelity-of-thums-pedestrian-model-under-a-whole-body-impact-conditions-with-a-generic-sedan-buck
#1
Taotao Wu, Taewung Kim, Varun Bollapragada, David Poulard, Huipeng Chen, Matthew B Panzer, Jason L Forman, Jeff R Crandall, Bengt Pipkorn
OBJECTIVE: The goal of this study was to evaluate the biofidelity of the Total Human Model for Safety (THUMS; Ver. 4.01) pedestrian finite element models (PFEM) in a whole-body pedestrian impact condition using a well-characterized generic pedestrian buck model. METHODS: The biofidelity of THUMS PFEM was evaluated with respect to data from 3 full-scale postmortem human subject (PMHS) pedestrian impact tests, in which a pedestrian buck laterally struck the subjects using a pedestrian buck at 40 km/h...
May 29, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28548285/neonatal-hypoxia-ischemia-in-rat-increases-doublecortin-concentration-in-the-cerebrospinal-fluid
#2
Catherine Brégère, Urs Fisch, Martin H Sailer, Wolfgang S Lieb, Laurie Chicha, Fabienne Goepfert, Thomas Kremer, Raphael Guzman
Doublecortin (DCX) is a microtubule-associated protein widely used as an indicator of neurogenesis in immunohistochemical analyses of the postmortem adult brain. A recent study reported that DCX can be quantified in the cerebrospinal fluid (CSF) from healthy rats between postnatal day 0 (P0) and P30. However, it is currently unclear whether the concentration of DCX in the CSF (CSF-DCX) may represent a measure of endogenous neurogenesis. To address this question, the present study examined the impact of a neonatal hypoxic-ischemic (HI) brain injury, known to induce neurogenesis, on CSF-DCX...
May 26, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28546142/non-invasive-postmortems-using-ct-scans-are-feasible-study-finds
#3
Zosia Kmietowicz
No abstract text is available yet for this article.
May 24, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28545987/echography-of-clinically-relevant-disorders-in-the-genital-tract-of-female-dromedary-camels
#4
Ahmed Ali, Derar Derar, Ali Alsamri, Fahd Al Sobayil
The aim of this study was to characterize the clinically relevant genital tract disorders of dromedary camels. Reproductive tract examinations were performed via transrectal palpation, ultrasonography and vaginal exploration. The ultrasonic appearance of the reproductive pathology was described and compared with its morphology at laparotomy, after surgical removal, during postmortem examination or upon slaughter. Diagnosis was also confirmed by histopathology. The most frequently encountered follicular structures were larger than typical follicles (56/338, 16...
May 19, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28545343/alcelaphine-gammaherpesvirus-1-induced-malignant-catarrhal-fever-in-a-watusi-bos-taurus-africanus-steer-in-a-north-american-game-park
#5
Robert J Bildfell, Hong Li, Benjamin E Alcantar, Cristina W Cunha, Dan S Bradway, Kirsten S Thomas
A 10-y-old Watusi ( Bos taurus africanus) steer housed at a drive-through game park in Winston, Oregon developed severe clinical illness including fever, marked nasal discharge, injected scleral and conjunctival membranes, plus oral hemorrhages and erosions. The animal responded poorly to supportive treatment and was euthanized. Additional gross findings at postmortem examination included papules and erosive lesions on the tongue, hemorrhagic large intestine, and multifocal cardiac hemorrhages. Histopathologic findings included multifocal lymphoplasmacytic vasculitis plus fibrin exudation in heart and tongue...
May 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28545324/postmortem-examination-of-australian-sea-snakes-hydrophiinae-anatomy-and-common-pathologic-conditions
#6
Amber K Gillett, Richard Ploeg, Mark Flint, Paul C Mills
There is limited published information about disease in wild sea snakes and no standardized guideline for postmortem examination of sea snakes. Identifying causes of morbidity and mortality of marine vertebrate species has been pivotal to understanding disease factors implicated in stranding events and assisting with the formulation of conservation plans. Additionally, postmortem findings can provide valuable information on life history traits and the ecology of these reclusive species. Sick, moribund, or dead sea snakes are intermittently washed ashore along Australian and international beaches and provide an opportunity to examine a subset of the population and identify causes of population decline...
May 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28544620/phenotyping-cardiac-and-structural-birth-defects-in-fetal-and-newborn-mice
#7
REVIEW
Xiaoqin Liu, Andrew J Kim, William Reynolds, Yijen Wu, Cecilia W Lo
Mouse models are invaluable for investigating the developmental etiology and molecular pathogenesis of structural birth defects. While this has been deployed for studying a wide spectrum of birth defects, mice are particularly valuable for modeling congenital heart disease, given they have the same four-chamber cardiac anatomy as in humans. We have developed the use of noninvasive fetal ultrasound together with micro-computed tomography (micro-CT) imaging for high throughput phenotyping of mice for congenital heart defects (CHD) and other developmental anomalies...
May 22, 2017: Birth Defects Res
https://www.readbyqxmd.com/read/28544560/fatal-intoxication-by-5f-adb-and-diphenidine-detection-quantification-and-investigation-of-their-main-metabolic-pathways-in-human-by-lc-ms-ms-and-lc-q-tofms
#8
Maiko Kusano, Kei Zaitsua, Kentaro Taki, Kazuaki Hisatsune, Jun'ichi Nakajima, Takako Moriyasu, Tomomi Asano, Yumi Hayashi, Hitoshi Tsuchihashi, Akira Ishii
Despite the implementation of the new blanket scheduling system in 2013, new psychoactive substance (NPS) abuse remains a serious social concern in Japan. We present a fatal intoxication case involving 5F-ADB (methyl 2-[1-(5-fluoropentyl)-1H-indazole-3-carboxamido]-3,3-dimethylbutanoate) and diphenidine. Postmortem blood screening by liquid chromatography/quadrupole time-of-flight mass spectrometry (LC/Q-TOFMS) in the information dependent acquisition (IDA) mode only detected diphenidine. Further urinary screening using an in-house database containing new NPS and metabolites detected not only diphenidine but also possible 5F-ADB metabolites; subsequent targeted screening by LC/tandem mass spectrometry (LC/MS/MS) allowed for the detection of very low level of unchanged 5F-ADB in postmortem heart blood...
May 21, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28543087/death-due-to-complications-of-bowel-obstruction-following-raw-poppy-seed-ingestion
#9
Leah M Schuppener, Robert F Corliss
Eating poppy seeds can cause a positive urine drug screen, but it is unknown whether ingesting large quantities can result in opiate intoxication or toxicity. A 54-year-old woman with intractable vomiting was found unresponsive at home and later pronounced dead. At autopsy, a cast-like large bowel obstruction composed of poppy seeds was identified. Postmortem blood morphine level was < 10 ng/mL. Cause of death was determined to be complications of a bowel obstruction secondary to poppy seed ingestion. Deaths related to eating poppy seeds have not been described in the literature...
May 23, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28542087/validity-of-postmortem-glycated-hemoglobin-to-determine-status-of-diabetes-mellitus-in-corneal-donors
#10
Mark C Soper, Santica M Marcovina, Caroline K Hoover, Peter M Calhoun, Kristen E McCoy, Christopher G Stoeger, Gregory A Schmidt, Baha M Arafah, Marianne O Price, Loretta B Szczotka-Flynn, Jonathan H Lass
PURPOSE: To examine the stability of postmortem glycated hemoglobin (HbA1c) measurement and its relationship to premortem glycemia. METHODS: Postmortem blood samples were obtained from 32 donors (8 known diabetic) and shipped on ice to a central laboratory to examine the stability of HbA1c measurements during the first 9 postmortem days. Thirty-nine other suspected diabetic donors underwent comparison of premortem and postmortem HbA1c measurements. RESULTS: Postmortem HbA1c measurements remained stable after 9 postmortem days (all measurements within ±0...
May 23, 2017: Cornea
https://www.readbyqxmd.com/read/28541780/food-quality-in-lusaka-national-park-tracking-mortality-in-black-lechwe-antelopes
#11
Kenneth Nyambe, Lackson Chama, Stanford Siachoono, Benjamin Mubemba
Translocation is one of the fundamental tools in wildlife management but only if appropriately undertaken. In 2009, 30 black lechwe antelopes were suddenly translocated from the State House Habitat (STH) into the newly established Lusaka National Park (LNP). However, within 4 months of being translocated to LNP, 28 black lechwes (93%) died. A pathological report produced by veterinarians following a postmortem examination suggested no disease incidence affected the antelopes. The food quality of LNP was tested and compared to that in the STH and the antelopes' native habitat of the Bangweulu wetlands (BGW) to establish if variations in food quality were responsible for the antelopes' mortality...
July 2017: Journal of Applied Animal Welfare Science: JAAWS
https://www.readbyqxmd.com/read/28541462/nonconsumptive-effects-of-predatory-chrysomya-rufifacies-diptera-calliphoridae-larval-cues-on-larval-cochliomyia-macellaria-diptera-calliphoridae-growth-and-development
#12
Micah Flores, Tawni L Crippen, Michael Longnecker, Jeffery K Tomberlin
Forensic entomologists often rely on development data associated with a given species to estimate when it colonized human or other vertebrate remains. In most instances, these development studies are based on single species reared in isolation in the laboratory. This study examined the impact of excretions and secretions (ES) associated with third-instar Chrysomya rufifacies (Macquart), a predator, on the development of its prey, Cochliomyia macellaria (F.). Not surprisingly, Ch. rufifacies ES did not impact the development of first- or second-instar C...
May 25, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28538416/case-report-of-2-sudden-deaths-after-surgery-for-bone-fracture-usefulness-of-immunohistochemical-analysis-of-coronary-artery-for-identifying-acute-myocardial-infarction
#13
Atsushi Kurata, Jun Nishida, Takashi Koyama, Tamotsu Miki, Hirotsugu Hashimoto, Kengo Yamamoto, Masahiko Kuroda
RATIONALE: Death following orthopedic surgery has become rare, but does occur. Acute myocardial infarction (AMI) can be a cause of such death, but diagnosis of AMI is often challenging, even by autopsy. PATIENT CONCERNS: We have recently experienced 2 cases of sudden death after bone fracture surgery, in which AMI and pulmonary thromboembolism were clinically suspected as causes of death. Case 1 was a 60-year-old male with a history of diabetes mellitus who died 7 days after surgery for Lisfranc dislocation fracture...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538362/statistical-analysis-of-organ-morphometric-parameters-and-weights-in-south-iranian-adult-autopsies
#14
Saeid Gholamzadeh, Mohammad Zarenezhad, Mahmoud Montazeri, Marzieh Zareikordshooli, Ghazaleh Sadeghi, Abdorrasoul Malekpour, Sanaz Hoseni, Mohammadreza Bahrani, Razieh Hajatmand
Organ weight is one important indicator to discern normal from abnormal condition in forensic pathology as well as in clinical medicine. The present study aimed to investigate morphometric parameters and organ weights of southern Iranian adults, which can be fundamental sources to be compared to abnormal cases.Morphometric parameters and weights of 6 organs (heart, liver, kidney, spleen, appendix, and brain), which were harvested from 501 southern Iranian adults (385 males and 116 females) during ordinary postmortem examination, were measured...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28536127/necrotizing-fasciitis-after-scalpel-injury-sustained-during-postmortem-examination
#15
Michal Brichacek, Robert Strazar, Kenneth A Murray, Avinash Islur
No abstract text is available yet for this article.
May 23, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28534187/total-hypothalamic-volume-is-reduced-in-postmortem-brains-of-male-heroin-addicts
#16
Ulf J Müller, Kolja Schiltz, Christian Mawrin, Henrik Dobrowolny, Thomas Frodl, Hans-Gert Bernstein, Bernhard Bogerts, Kurt Truebner, Johann Steiner
The hypothalamus is at the core of the stress responses systems of the brain. Most interestingly, even though changes of HPA-function have been observed in opiate addiction not much is known about structural changes of the hypothalamus. Volumes of hypothalamus in heroin addicts (n = 14) and healthy controls (n = 12) were assessed by using morphometry of serial whole-brain sections. Total brain volume was larger in the heroin group (mean 1478.85 ± 62.34 cm(3) vs. mean 1352.38 ± 103.24 cm(3)), as the heroin group was more than 10 years younger (p = 0...
May 22, 2017: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/28534003/new-pharmacological-approaches-to-treating-non-motor-symptoms-of-parkinson-s-disease
#17
Michael A Kelberman, Elena M Vazey
PURPOSE OF REVIEW: Non-motor symptoms in patients with Parkinson's Disease (PD) are better predictors of quality of life changes, caregiver burden, and mortality than motor symptoms. Levodopa has limited, and sometimes detrimental, effects on these symptoms. In this review we discuss recent evidence on pharmacological treatments for non-motor symptoms. RECENT FINDINGS: Breakthroughs have been made in the treatment of psychosis and sleep dysfunction. Pimavanserin has become the first FDA approved drug for PD psychosis...
December 2016: Current Pharmacology Reports
https://www.readbyqxmd.com/read/28529876/pathology-of-callosal-damage-in-als-an-ex-vivo-7%C3%A2-t-diffusion-tensor-mri-study
#18
Agustin M Cardenas, Joelle E Sarlls, Justin Y Kwan, Devin Bageac, Zachary S Gala, Laura E Danielian, Abhik Ray-Chaudhury, Hao-Wei Wang, Karla L Miller, Sean Foxley, Saad Jbabdi, Robert C Welsh, Mary Kay Floeter
OBJECTIVES: The goal of this study was to better understand the changes in tissue microstructure that underlie white matter diffusion changes in ALS patients. METHODS: Diffusion tensor imaging was carried out in postmortem brains of 4 ALS patients and two subjects without neurological disease on a 7 T MRI scanner using steady-state free precession sequences. Fractional anisotropy (FA) was measured in the genu, body, and splenium of the corpus callosum in formalin-fixed hemispheres...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28528772/early-interleukin-6-enhances-hepatic-ketogenesis-in-appswe-psen1de9-mice-via-3-hydroxy-3-methylglutary-coa-synthase-2-signaling-activation-by-p38-nuclear-factor-%C3%AE%C2%BAb-p65
#19
Le Shi, Daina Zhao, Chen Hou, Yunhua Peng, Jing Liu, Shuangxi Zhang, Jiankang Liu, Jiangang Long
Alzheimer's disease (AD) is considered a multifactorial disease that affects the central nervous system and periphery. A decline in brain glucose metabolism is an early feature of AD and is accompanied by a phenotypic shift from aerobic glycolysis to ketogenesis. The liver is responsible for the generation of the ketone body. However, the mechanism that underlies hepatic ketogenesis in AD remains unclear. Here, we investigated hepatic ketogenesis during the early stage of AD pathogenesis in amyloid precursor protein (APPSWE) and presenilin (PSEN1dE9) (APP/PS1) mice...
April 26, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28527668/imaging-mass-spectrometry-ims-of-cortical-lipids-from-preclinical-to-severe-stages-of-alzheimer-s-disease
#20
E Gónzalez de San Román, I Manuel, M T Giralt, I Ferrer, R Rodríguez-Puertas
Alzheimer's disease (AD) is a progressive neurodegenerative disease affecting millions of patients worldwide. Previous studies have demonstrated alterations in the lipid composition of lipid extracts from plasma and brain samples of AD patients. However, there is no consensus regarding the qualitative and quantitative changes of lipids in brains from AD patients. In addition, the recent developments in imaging mass spectrometry methods are leading to a new stage in the in situ analysis of lipid species in brain tissue slices from human postmortem samples...
May 17, 2017: Biochimica et Biophysica Acta
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