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Pathology residency

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https://www.readbyqxmd.com/read/29052618/a-role-for-prefrontal-cortical-nmda-receptors-in-murine-alcohol-heightened-aggression
#1
Emily L Newman, Miho Terunuma, Tiffany Wang, Nishani Hewage, Matthew B Bicakci, Stephen J Moss, Joseph F DeBold, Klaus A Miczek
Alcohol is associated with nearly half of all violent crimes committed in the United States; yet, a potential neural basis for this type of pathological aggression remains elusive. Alcohol may act on NMDA receptors (NMDARs) within cortical circuits to impede processing and to promote aggression. Here, male mice were characterized as alcohol-heightened (AHAs) or alcohol non-heightened aggressors (ANAs) during resident-intruder confrontations after self-administering 1.0 g/kg alcohol (6% w/v) or water. Alcohol produced a pathological-like pattern of aggression in AHAs; these mice shifted their bites to more vulnerable locations on the body of a submissive animal, including the anterior back and ventrum after consuming alcohol...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29050201/htlv-1-viral-oncogene-hbz-induces-osteolytic-bone-disease-in-transgenic-mice
#2
Alison K Esser, Daniel A Rauch, Jingyu Xiang, John C Harding, Nicole A Kohart, Michael H Ross, Xinming Su, Kevin Wu, Devra Huey, Yalin Xu, Kiran Vij, Patrick L Green, Thomas J Rosol, Stefan Niewiesk, Lee Ratner, Katherine N Weilbaecher
Adult T-cell leukemia/lymphoma (ATL) is an aggressive T cell malignancy that occurs in HTLV-1 infected patients. Most ATL patients develop osteolytic lesions and hypercalcemia of malignancy, causing severe skeletal related complications and reduced overall survival. The HTLV-1 virus encodes 2 viral oncogenes, Tax and HBZ. Tax, a transcriptional activator, is critical to ATL development, and has been implicated in pathologic osteolysis. HBZ, HTLV-1 basic leucine zipper transcription factor, promotes tumor cell proliferation and disrupts Wnt pathway modulators; however, its role in ATL induced osteolytic bone loss is unknown...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049424/diagnostic-accuracy-of-virtual-pathology-vs-traditional-microscopy-in-a-large-dermatopathology-study
#3
Michael N Kent, Thomas G Olsen, Theresa A Feeser, Katherine C Tesno, John C Moad, Michael P Conroy, Mary Jo Kendrick, Sean R Stephenson, Michael R Murchland, Ayesha U Khan, Elizabeth A Peacock, Alexa Brumfiel, Michael A Bottomley
Importance: Digital pathology represents a transformative technology that impacts dermatologists and dermatopathologists from residency to academic and private practice. Two concerns are accuracy of interpretation from whole-slide images (WSI) and effect on workflow. Studies of considerably large series involving single-organ systems are lacking. Objective: To evaluate whether diagnosis from WSI on a digital microscope is inferior to diagnosis of glass slides from traditional microscopy (TM) in a large cohort of dermatopathology cases with attention on image resolution, specifically eosinophils in inflammatory cases and mitotic figures in melanomas, and to measure the workflow efficiency of WSI compared with TM...
October 11, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/29047090/metabolic-reprogramming-and-redox-signaling-in-pulmonary-hypertension
#4
Lydie Plecitá-Hlavatá, Angelo D'alessandro, Karim El Kasmi, Min Li, Hui Zhang, Petr Ježek, Kurt R Stenmark
Pulmonary hypertension is a complex disease of the pulmonary vasculature, which in severe cases terminates in right heart failure. Complex remodeling of pulmonary arteries comprises the central issue of its pathology. This includes extensive proliferation, apoptotic resistance and inflammation. As such, the molecular and cellular features of pulmonary hypertension resemble hallmark characteristics of cancer cell behavior. The vascular remodeling derives from significant metabolic changes in resident cells, which we describe in detail...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29039215/a-clinical-assessment-and-lung-tissue-burden-from-an-individual-who-worked-as-a-libby-vermiculite-miner
#5
Brad Black, Ronald F Dodson, James R Bruce, Lee W Poye, Claudia Henschke, Gregory Loewen
During its days of operation (1920s-1990), the world's largest source of vermiculite was extracted from a mine located near Libby, Montana. The material mined at this site was shipped for various commercial applications to numerous sites in the United States. There was a "fibrous" component with toxic potential within the vermiculite deposit that has resulted in "asbestos-like" diseases/deaths being reported in numerous studies involving miners as well as residents of the town of Libby. The present case involves the clinical assessments of an individual who worked at the mine from 1969 to 1990...
October 17, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/29032243/dna-methylation-patterns-are-related-to-co-morbidity-status-and-circulating-c-reactive-protein-levels-in-the-nursing-home-elderly
#6
Chris P Verschoor, Lisa M McEwen, Michael S Kobor, Mark B Loeb, Dawn M E Bowdish
Elderly residents of long-term care commonly exhibit a number of age-related health deficits, including impaired physical and cognitive function, chronic illnesses, and chronic inflammation. Given our previous data relating the phenotype and function of innate and adaptive leukocytes from the nursing home elderly to chronic conditions and inflammatory biomarkers, we hypothesized that these factors would influence the regulatory programming of immune cells, thereby contributing to immune dysfunction. Since DNA methylation represents both an important regulatory mechanism of cells as well as a biomarker of health and disease, we sought to characterize the methylome of peripheral blood mononuclear cells (PBMCs) from the nursing home elderly (n=23; 82-98years old, 70% female), and compare these patterns to pathological factors such as dementia, co-morbidity score and frailty, and immune-related factors such as serum C-reactive protein (CRP) and cytokine levels and varicella-zoster virus (VZV) vaccine responsiveness...
October 12, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29031418/demographic-and-socioeconomic-predictors-of-treatment-delays-pathologic-stage-and-survival-among-patients-with-penile-cancer-a-report-from-the-national-cancer-database
#7
Kyrollis Attalla, David J Paulucci, Kyle Blum, Harry Anastos, Kelvin A Moses, Ketan K Badani, Philippe E Spiess, John P Sfakianos
OBJECTIVES: To evaluate whether socioeconomic factors affect pathologic stage, treatment delays, pathologic upstaging, and overall survival (OS) in patients with penile cancer (PC). PATIENTS AND METHODS: A total of 13,283 eligible patients diagnosed with PC from 1998 to 2012 were identified from the National Cancer Database. Socioeconomic, demographic and pathologic variables were used in multivariable regression models to identify predictors of pathologic T stage ≥2, pathologic lymph node positivity, cT to pT upstaging, treatment delays, and OS...
October 11, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29027235/low-dose-ct-for-the-detection-and-classification-of-metastatic-liver-lesions-results-of-the-2016-low-dose-ct-grand-challenge
#8
Cynthia H McCollough, Adam C Bartley, Rickey E Carter, Baiyu Chen, Tammy A Drees, Phillip Edwards, David R Holmes, Alice E Huang, Farhana Khan, Shuai Leng, Kyle L McMillan, Gregory J Michalak, Kristina M Nunez, Lifeng Yu, Joel G Fletcher
PURPOSE: Using common datasets, to estimate and compare the diagnostic performance of image-based denoising techniques or iterative reconstruction algorithms for the task of detecting hepatic metastases. METHODS: Datasets from contrast-enhanced CT scans of the liver were provided to participants in an NIH-, AAPM- and Mayo Clinic-sponsored Low Dose CT Grand Challenge. Training data included full-dose and quarter-dose scans of the ACR CT accreditation phantom and 10 patient examinations; both images and projections were provided in the training data...
October 2017: Medical Physics
https://www.readbyqxmd.com/read/29027011/let-s-make-microglia-great-again-in-neurodegenerative-disorders
#9
REVIEW
Marie-Victoire Guillot-Sestier, Terrence Town
All of the common neurodegenerative disorders-Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis and prion diseases-are characterized by accumulation of misfolded proteins that trigger activation of microglia; brain-resident mononuclear phagocytes. This chronic form of neuroinflammation is earmarked by increased release of myriad cytokines and chemokines in patient brains and biofluids. Microglial phagocytosis is compromised early in the disease process, obfuscating clearance of abnormal proteins...
October 12, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29024054/multifunctional-nanohybrid-based-on-porous-silicon-nanoparticles-gold-nanoparticles-and-acetalated-dextran-for-liver-regeneration-and-acute-liver-failure-theranostics
#10
Zehua Liu, Yunzhan Li, Wei Li, Chen Xiao, Dongfei Liu, Chao Dong, Ming Zhang, Ermei Mäkilä, Marianna Kemell, Jarno Salonen, Jouni T Hirvonen, Hongbo Zhang, Dawang Zhou, Xianming Deng, Hélder A Santos
Herein, a novel nanohybrid based on porous silicon, gold nanoparticles (Au NPs), and acetalated dextran (DPSi/DAu@AcDEX) is reported to encapsulate and deliver one drug and increase the computer tomography (CT) signal for acute-liver-failure (ALF) theranostics. A microfluidic-assisted method is used to co-encapsulate different NPs in a single step. By alternating the surface properties of different NPs and by modulating the composition of the organic phase, both PSi and Au NPs are effectively encapsulated into the polymer matrix simultaneously, thus further achieving a multifunctional application...
October 11, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29023743/oral-health-for-an-ageing-population-the-importance-of-a-natural-dentition-in-older-adults
#11
Frauke Müller, Yoshihiro Shimazaki, Febronia Kahabuka, Martin Schimmel
Despite progress in dentistry, tooth loss in old age is still a reality, even more so in long-term-care residents. However, recent trends indicate that natural teeth are lost later in life. Functional decline and age-related pathologies have to be considered in oral health care for this vulnerable population. Retaining and restoring teeth and oral function in elders is important. Tooth loss significantly impairs masticatory performance, which cannot be fully restored by prosthodontic means. Hence an unconscious change in food intake occurs, often involving malnutrition and withdrawal from common meals...
September 2017: International Dental Journal
https://www.readbyqxmd.com/read/29022261/the-non-cardiomyocyte-cells-of-the-heart-their-possible-roles-in-exercise-induced-cardiac-regeneration-and-remodeling
#12
Ivan Varga, Jan Kyselovič, Paulina Galfiova, Lubos Danisovic
The non-cardiomyocyte cellular microenvironment of the heart includes diverse types of cells of mesenchymal origin. During development, the majority of these cells derive from the epicardium, while a subset derives from the endothelium/endocardium and neural crest derived mesenchyme. This subset includes cardiac fibroblasts and telocytes, the latter of which are a controversial type of "connecting cell" that support resident cardiac progenitors in the postnatal heart. Smooth muscle cells, pericytes, and endothelial cells are also present, in addition to adipocytes, which accumulate as epicardial adipose connective tissue...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29022053/glycated-albumin-ga-and-inflammation-role-of-ga-as-a-potential-marker-of-inflammation
#13
REVIEW
H Vernon Roohk, Asad R Zaidi, Dimple Patel
AIMS: Abnormal levels of glycated albumin (GA) are associated with the onset of both diabetes and inflammation. Although inflammation has long been associated with diabetes, this article aims to explore the underlying mechanisms of this relationship as it pertains to the role of GA. METHODS: We have reviewed 52 research articles since the year 2000. Common search terms used were "(inflammatory mediator) and GA" or "inflammation and GA". The findings have been organized according to diabetic complications with respect to the interactions of GA and inflammatory mediators...
October 11, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29017863/surgical-volunteerism-as-a-collaborative-teaching-activity-can-benefit-surgical-residents-in-low-middle-income-countries
#14
EDITORIAL
Ryan A Hayton, Dustin K Donley, Arega Fekadu, Bradley K Woods, Cassandra K Graybill, Tamara N Fitzgerald
Surgical care is desperately needed in low-middle income countries (LMIC). Due to small numbers of faculty in local training programs, residents have limited exposure to subspecialists. We describe a teaching activity between visiting surgeons from the U.S. and a residency program in Malawi as an example for how surgeons in high income countries can meaningfully contribute. A short-term education activity was developed where residents participated in a pre-test on pediatric surgical management, lectures, intra-operative instruction, bedside rounds and a post-test...
October 7, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28993701/parkinson-s-disease-related-dj-1-functions-in-thiol-quality-control-against-aldehyde-attack-in-vitro
#15
Noriyuki Matsuda, Mayumi Kimura, Bruno Barros Queliconi, Waka Kojima, Masaki Mishima, Kenji Takagi, Fumika Koyano, Koji Yamano, Tsunehiro Mizushima, Yutaka Ito, Keiji Tanaka
DJ-1 (also known as PARK7) has been identified as a causal gene for hereditary recessive Parkinson's disease (PD). Consequently, the full elucidation of DJ-1 function will help decipher the molecular mechanisms underlying PD pathogenesis. However, because various, and sometimes inconsistent, roles for DJ-1 have been reported, the molecular function of DJ-1 remains controversial. Recently, a number of papers have suggested that DJ-1 family proteins are involved in aldehyde detoxification. We found that DJ-1 indeed converts methylglyoxal (pyruvaldehyde)-adducted glutathione (GSH) to intact GSH and lactate...
October 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28990564/-mirnas-new-actors-in-the-physiopathology-of-multiple-sclerosis
#16
Ferdinand Jagot, Nathalie Davoust
Multiple sclerosis (MS) is an auto-immune demyelinating disorder characterized by a chronic neuro-inflammatory process associated with an infiltration of the central nervous system (CNS) by autoreactive lymphocytes. The etiology of the disease remains unclear but the recent discovery of a dysregulated miRNA network in both cells and extracellular fluids of MS patients has brought new insights on the pathophysiological mechanisms involved in this disorder. miRNAs can induce a T cell polarization towards a pathological Th17 or Th1 phenotype and a deleterious activation of microglia, the CNS-resident macrophages...
June 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28988241/macrophage-extracellular-traps-a-scoping-review
#17
Ryan S Doster, Lisa M Rogers, Jennifer A Gaddy, David M Aronoff
Tissue macrophages are derived from either circulating blood monocytes that originate in the bone marrow, or embryonic precursors that establish residence in tissues and are maintained independent of bone marrow progenitors. Macrophages perform diverse functions including tissue repair, the maintenance of homeostasis, and immune regulation. Recent studies have demonstrated that macrophages produce extracellular traps (ETs). ETs are an immune response by which a cell undergoes "ETosis" to release net-like material, with strands composed of cellular DNA that is studded with histones and cellular proteins...
October 7, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28987879/thioaptamer-targeted-discoidal-microparticles-increase-self-immunity-and-reduce-mycobacterium-tuberculosis-burden-in-mice
#18
Fransisca Leonard, Ngan P Ha, Preeti Sule, Jenolyn F Alexander, David E Volk, Ganesh L R Lokesh, Xuewu Liu, Jeffrey D Cirillo, David G Gorenstein, Jinyun Yuan, Soumya Chatterjee, Edward A Graviss, Biana Godin
Worldwide, tuberculosis (TB) remains one of the most prevalent infectious diseases causing morbidity and death in >1.5 million patients annually. Mycobacterium tuberculosis (Mtb), the etiologic agent of TB, usually resides in the alveolar macrophages. Current tuberculosis treatment methods require more than six months, and low compliance often leads to therapeutic failure and multidrug resistant strain development. Critical to improving TB-therapy is shortening treatment duration and increasing therapeutic efficacy...
October 4, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28984299/medical-renal-diseases-are-frequent-but-often-unrecognized-in-adult-autopsies
#19
Marie E Perrone, Anthony Chang, Kammi J Henriksen
Kidney diseases affect many hospitalized patients and contribute to morbidity and mortality. Therefore, kidney disease should be prevalent, but the frequency and spectrum of medical renal pathology in autopsy specimens has not been well documented. We sought to determine the spectrum of medical renal pathology in adult autopsy specimens and the frequency of overlooked diagnoses. We reviewed the hematoxylin- and eosin-stained kidney sections from 140 adult autopsies performed at a large teaching hospital over a 2-year period...
October 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28972481/-population-and-cluster-approach-to-assessment-of-reproductive-health-of-women
#20
M Gulzoda, F Khalimova, F Shukurov, A Gulin
The purpose of this study was to explore the possibility of using a population approach to assessing the risk of reproductive health disorders in women of childbearing age. We observed 240 clinically healthy women aged 20 to 43 years, half of them lived in the Middle Black Earth region of Russia, and 120 women lived in Tajikistan. The study identified population differences in women with different ethnic backgrounds and regions of residence according to a set of genetic, hormonal, and immune signs. All women underwent venous blood sampling for the purpose of HLA typing by molecular genetic analysis and determining the range of normative values ​​of hormonal and immune status parameters...
September 2017: Georgian Medical News
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