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Pathology residency

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https://www.readbyqxmd.com/read/29455676/evaluation-of-an-ophthalmoscopy-simulator-to-teach-funduscopy-skills-to-pediatric-residents
#1
Elizabeth Kouzmitcheva, Stephanie A Grover, Tara Berenbaum, Asim Ali, Adelle Atkinson, E Ann Yeh
BACKGROUND: Medical school and residency training in ophthalmoscopic evaluation is limited, reducing diagnostic accuracy. We sought to evaluate the efficacy of self-study using an ophthalmoscopy simulator to improve the technical motor skills involved in direct funduscopy in postgraduate pediatric residents. METHODS: In this randomized-controlled study, 17 pediatric residents (postgraduate years 1-3) were randomized to control (n=8) or intervention (n=9) groups...
February 19, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29453985/zika-virus-infected-primary-microglia-impairs-npcs-proliferation-and-differentiation
#2
Jin Wang, Jing Liu, Rui Zhou, Xin Ding, Qipeng Zhang, Chenyu Zhang, Liang Li
Zika virus (ZIKV) can lead to severe birth defects especially microcephaly in newborns by infecting human neural progenitors and impairing brain development. However, as the resident immune cells in the brain, the role of microglia in the ZIKV pathology is not clearly defined. To understand the interplay between immune response and neural cells, we investigate the interaction between microglia and NPCs during ZIKV infection. Our results demonstrate that primary microglia infected with ZIKV induces an inflammatory response similar to that in human, producing high level of tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), interleukin 1β (IL-1β) and inducible nitric oxide synthase (iNOS)...
February 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29449841/langerhans-cells-sensing-the-environment-in-health-and-disease
#3
REVIEW
Julie Deckers, Hamida Hammad, Esther Hoste
In the last few decades, our understanding of Langerhans cells (LCs) has drastically changed based on novel findings regarding the developmental origin and biological functions of these epidermis-specific resident immune cells. It has become clear that LCs not only exert pivotal roles in immune surveillance and homeostasis but also impact on pathology by either inducing tolerance or mediating inflammation. Their unique capabilities to self-renew within the epidermis, while also being able to migrate to lymph nodes in order to present antigen, place LCs in a key position to sample the local environment and decide on the appropriate cutaneous immune response...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29449776/nkx2-3-a-slippery-slope-from-development-through-inflammation-toward-hematopoietic-malignancies
#4
REVIEW
Dóra Vojkovics, Zoltán Kellermayer, Béla Kajtár, Giovanna Roncador, Áron Vincze, Péter Balogh
The development of peripheral lymphoid tissues from the mesoderm is the result of a complex convergence combining lymphohematopoietic differentiation with the local specification of nonhematopoietic mesenchymal components. Although the various transcriptional regulators with fate-determining effects in diversifying the mobile leukocyte subsets have been thoroughly studied and identified, the tissue-specific determinants promoting the regional differentiation of resident mesenchyme are less understood. Of these factors, various members of the NK-class Nkx paralogues have emerged as key regulators for the organogenesis of spleen and mucosal lymphoid tissues, and recent data have also indicated their involvement in various pathological events, including gut inflammation and hematopoietic malignancies...
2018: Biomarker Insights
https://www.readbyqxmd.com/read/29449723/an-outbreak-of-cutaneous-leishmaniasis-in-modena-province-northern-italy-report-of-35-cases
#5
A M Cesinaro, S Nosseir, E Mataca, M C Mengoli, C Cavatorta, W Gennari
Canine Leishmaniasis is a disease endemic in many parts of Europe, carried by insects of phlebotomous species. Humans are occasional hosts of the parasites. Cases of human leishmaniasis have been registered in Italy, particularly in the southern and coastal regions. In the period 1997-2016, we collected a series of 35 patients affected by cutaneous leishmaniasis, uncovered by skin biopsy and histological examination, 21 of them found in last 3 years. The patients, 28 males and 7 female, aged between 19 and 91, resided in a restricted area of Northern Italy, and none, but two, had travelled abroad...
December 2017: Pathologica
https://www.readbyqxmd.com/read/29438258/contribution-of-resident-and-recruited-macrophages-in-vascular-physiology-and-pathology
#6
Li Zhang
PURPOSE OF REVIEW: Macrophages are generally believed to originate entirely from the bone marrow; however, this paradigm is challenged by the discovery of yolk-sac-derived resident macrophages. Here, we provide an overview of recent advances in the ontogeny and function of resident macrophages. RECENT FINDINGS: Macrophage precursors from three distinct embryonic sources (yolk sac, fetal liver and bone marrow) are found to colonize various tissues via the blood circulation early during embryogenesis until shortly after birth...
February 12, 2018: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29436726/molecular-testing-practices-and-perceptions-among-dermatopathologists
#7
Kristin Torre, Preeti Jhorar, Rong Wu, John Pfeifer, Zendee Elaba, Michael Murphy
BACKGROUND: We evaluated how dermatopathologists are employing molecular testing in the setting of neoplastic skin diseases, and assess their opinions of the broader role and utility of molecular technologies in clinical practice. METHODS: A 15-question online survey was sent to Fellows of the American Society of Dermatopathology in April 2017. RESULTS: One hundred and thirty-six dermatopathologists completed the survey (response rate = 16%)...
February 13, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29434340/glucocorticoid-receptor-expression-in-resident-and-hematopoietic-cells-in-igg4-related-disease
#8
Taku Iguchi, Koji Takaori, Akiko Mii, Yuki Sato, Yasunori Suzuki, Hajime Yoshifuji, Hiroshi Seno, Osamu Ogawa, Koichi Omori, Kazuhisa Bessho, Satoru Kondo, Tomokazu Yoshizaki, Hitoshi Nakashima, Takao Saito, Tsuneyo Mimori, Hironori Haga, Mitsuhiro Kawano, Motoko Yanagita
Immunoglobulin G4-related disease is a rare immune-mediated disease characterized by the infiltration of IgG4-positive plasma cells and unique storiform fibrosis of multiple organs. The majority of IgG4-related disease patients respond to glucocorticoids, yet the precise mechanism of their action remains unclear. Pathological sections of the submaxillary gland, kidney, and retroperitoneum from 20 patients in total diagnosed with IgG4-related disease were analyzed for glucocorticoid receptor expression and the cell types expressing glucocorticoid receptor...
February 12, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29433896/generating-tissue-resident-macrophages-from-pluripotent-stem-cells-lessons-learned-from-microglia
#9
Christel Claes, Johanna Van den Daele, Catherine M Verfaillie
Over the past decades, the importance of the immune system in a broad scope of pathologies, has drawn attention towards tissue-resident macrophages, such as microglia in the brain. To enable the study of for instance microglia, it is crucial to recreate in vitro (and in vivo) assays. However, very fast loss of tissue-specific features of primary tissue resident macrophages, including microglia, upon in vitro culture has complicated such studies. Moreover, limited knowledge of macrophage developmental pathways and the role of local 'niche factors', has hampered the generation of tissue-resident macrophages from pluripotent stem cells (PSC)...
February 2, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29433155/nutraceuticals-opening-the-debate-for-a-regulatory-framework
#10
REVIEW
Antonello Santini, Silvia Miriam Cammarata, Giacomo Capone, Angela Ianaro, Giancarlo Tenore, Luca Pani, Ettore Novellino
Currently, nutraceuticals do not have a specific definition distinct from those of other food-derived categories, e.g., food supplements, herbal products, pre- and probiotics, functional foods, and fortified foods. Many studies have led to an understanding of the potential mechanisms of action of pharmaceutically active components contained in food that may improve health and reduce the risk of pathological conditions while enhancing overall well-being. Nevertheless, there is a lack of clear information, and often, the claimed health benefits may not be properly substantiated by safety and efficacy information and in vitro and in vivo data, which can induce false expectations and miss the target for a product to be effective, as claimed...
February 12, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29429272/-multivariate-analysis-of-the-association-between-consumption-of-fried-food-and-gastric-cancer-and-precancerous-lesions
#11
L W Guo, S Z Liu, M Zhang, Q Chen, S K Zhang, X B Sun
Objective: To investigate the effect of fried food intake on the pathogenesis of gastric cancer and precancerous lesions. Methods: From 2005 to 2013, the residents aged 40-69 years from 11 counties/cities where cancer screening of upper gastrointestinal cancer were conducted in rural areas of Henan province as the subjects (82 367 cases). The information such as demography and lifestyle was collected. The residents were screened with endoscopic examination. The biopsy sampleswere diagnosed pathologically, according to pathological diagnosis criteria, the subjects with high risk were divided into the groups with different pathological degrees...
February 6, 2018: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29422928/education-as-a-protective-factor-moderating-the-effect-of-depression-on-memory-impairment-in-elderly-women
#12
Jiyoun Lee, Heyeon Park, Jeanyung Chey
Objective: The cognitive reserve theory explicates individual differences observed in the clinical manifestation of dementia despite similar brain pathology. Education, a popular proxy of the cognitive reserve, has been shown to have protective effects delaying the onset of clinical symptoms including memory. This study was conducted to test whether education can moderate the negative effect of depressive mood on memory performance in elderly women residing in the community. Methods: 29 elderly "unschooled" female (less than 6 years of formal education) and 49 "schooled" female (6 or more years) people were compared with regard to association between depressive mood and verbal memory functioning, which were measured by the Geriatric Depression Scale and the Elderly Verbal Learning Test, respectively...
January 2018: Psychiatry Investigation
https://www.readbyqxmd.com/read/29422033/a-case-report-of-tubo-ovarian-abscess-caused-by-burkholderia-pseudomallei
#13
Pattaranit Nernsai, Areepan Sophonsritsuk, Srithean Lertvikool, Artit Jinawath, Maria Nina Chitasombat
BACKGROUND: Melioidosis, the disease caused by Burkholderia pseudomallei is endemic in the Northeastern part of Thailand, South-East Asia, and Northern Australia. The pelvic involvement of disease is rare even in an endemic area. Therefore, we describe in this report the clinical presentation, management, and outcome of the patient with primary tubo-ovarian abscess due to melioidosis. CASE PRESENTATION: A 31-year-old Thai cassava farmer woman presented with fever and abdominal pain at left lower quadrant for one month...
February 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29419406/microglial-phenotypes-and-functions-in-multiple-sclerosis
#14
REVIEW
Elaine O'Loughlin, Charlotte Madore, Hans Lassmann, Oleg Butovsky
Microglia are the resident immune cells that constantly survey the central nervous system. They can adapt to their environment and respond to injury or insult by altering their morphology, phenotype, and functions. It has long been debated whether microglial activation is detrimental or beneficial in multiple sclerosis (MS). Recently, the two opposing yet connected roles of microglial activation have been described with the aid of novel microglial markers, RNA profiling, and in vivo models. In this review, microglial phenotypes and functions in the context of MS will be discussed with evidence from both human pathological studies, in vitro and in vivo models...
February 1, 2018: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/29416537/prior-to-peripheral-tolerance-newly-generated-cd4-t-cells-maintain-dangerous-autoimmune-potential-fas-and-perforin-independent-autoimmunity-controlled-by-programmed-death-1
#15
Kristofor K Ellestad, Govindarajan Thangavelu, Yohannes Haile, Jiaxin Lin, Louis Boon, Colin C Anderson
Lymphopenia can result from various factors, including viral infections, clinical interventions, or as a normal property of the fetal/neonatal period. T cells in a lymphopenic environment undergo lymphopenia-induced proliferation (LIP) to fill the available "niche" as defined by peptide-MHC and homeostatic cytokine resources. We recently reported systemic autoimmunity following reconstitution of the lymphoid compartment of Rag1-/- mice with PD-1-/- hematopoietic stem cells or by transfer of thymocytes, but not splenocytes, suggesting that programmed death-1 (PD-1) plays a crucial role in controlling recent thymic emigrants (RTE) and preventing autoimmunity upon their LIP...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29408550/expression-and-activation-of-mitogen-activated-protein-kinases-in-the-optic-nerve-head-in-a-rat-model-of-ocular-hypertension
#16
Teresa Mammone, Glyn Chidlow, Robert J Casson, John P M Wood
BACKGROUND: Glaucoma is a leading cause of irreversible blindness manifesting as an age-related, progressive optic neuropathy with associated retinal ganglion cell (RGC) loss. Mitogen-activated protein kinases (MAPKs: p42/44 MAPK, SAPK/JNK, p38 MAPK) are activated in various retinal disease models and likely contribute to the mechanisms of RGC death. Although MAPKs play roles in the development of retinal pathology, their action in the optic nerve head (ONH), where the initial insult to RGC axons likely resides in glaucoma, remains unexplored...
February 2, 2018: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/29408301/bradykinin-mediates-myogenic-differentiation-in-murine-myoblasts-through-the-involvement-of-sk1-spns2-s1p2-axis
#17
Gennaro Bruno, Francesca Cencetti, Caterina Bernacchioni, Chiara Donati, Kira Vanessa Blankenbach, Dominique Thomas, Dagmar Meyer Zu Heringdorf, Paola Bruni
Skeletal muscle tissue retains a remarkable regenerative capacity due to the activation of resident stem cells that in pathological conditions or after tissue damage proliferate and commit themselves into myoblasts. These immature myogenic cells undergo differentiation to generate new myofibers or repair the injured ones, giving a strong contribution to muscle regeneration. Cytokines and growth factors, potently released after tissue injury by leukocytes and macrophages, are not only responsible of the induction of the initial inflammatory response, but can also affect skeletal muscle regeneration...
February 2, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29406836/differential-diagnosis-in-a-patient-presenting-with-both-systemic-and-neuromusculoskeletal-pathology-resident-s-case-problem
#18
Evan J Petersen, Stephanie M Thurmond
Study Design Resident's case problem. Background Patients presenting with multiple symptomatic areas pose a diagnostic challenge for the physical therapist. Though musculoskeletal and nonmusculoskeletal symptoms typically present separately, they can occur simultaneously and mimic each other. Consequently, the ability to differentiate between musculoskeletal and nonmusculoskeletal symptoms is an important skill for physical therapists. The purpose of this resident's case problem was to describe the clinical-reasoning process leading to medical and physical therapy management of a patient presenting with upper and lower back pain, bilateral radiating arm and leg pain, and abdominal pain...
February 6, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29403200/a-search-for-entrustable-professional-activities-for-the-1-st-year-pathology-postgraduate-trainees
#19
Pooja Sharma, Nadeem Tanveer, Aditi Goyal
INTRODUCTION: During the past decade, there has been a paradigm shift in medical education from the problem-based learning to competency-based training. This has forced a rethink on the way we evaluate the residents and finally give them the right to handle patients independently. This study makes the first attempt towards designing competency-based training program for pathology residents by formulating the entrustable professional activities (EPAs) for the 1 st year pathology residents...
January 2018: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/29402286/a-review-of-the-experimental-evidence-on-the-toxicokinetics-of-carbon-monoxide-the-potential-role-of-pathophysiology-among-susceptible-groups
#20
REVIEW
Prabjit Barn, Luisa Giles, Marie-Eve Héroux, Tom Kosatsky
BACKGROUND: Acute high level carbon monoxide (CO) exposure can cause immediate cardio-respiratory arrest in anyone, but the effects of lower level exposures in susceptible persons are less well known. The percentage of CO-bound hemoglobin in blood (carboxyhemoglobin; COHb) is a marker of exposure and potential health outcomes. Indoor air quality guidelines developed by the World Health Organization and Health Canada, among others, are set so that CO exposure does not lead to COHb levels above 2...
February 5, 2018: Environmental Health: a Global Access Science Source
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