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https://www.readbyqxmd.com/read/29769725/mxra8-is-a-receptor-for-multiple-arthritogenic-alphaviruses
#1
Rong Zhang, Arthur S Kim, Julie M Fox, Sharmila Nair, Katherine Basore, William B Klimstra, Rebecca Rimkunas, Rachel H Fong, Hueylie Lin, Subhajit Poddar, James E Crowe, Benjamin J Doranz, Daved H Fremont, Michael S Diamond
Arthritogenic alphaviruses comprise a group of enveloped RNA viruses that are transmitted to humans by mosquitoes and cause debilitating acute and chronic musculoskeletal disease 1 . The host factors required for alphavirus entry remain poorly characterized 2 . Here we use a genome-wide CRISPR-Cas9-based screen to identify the cell adhesion molecule Mxra8 as an entry mediator for multiple emerging arthritogenic alphaviruses, including chikungunya, Ross River, Mayaro and O'nyong nyong viruses. Gene editing of mouse Mxra8 or human MXRA8 resulted in reduced levels of viral infection of cells and, reciprocally, ectopic expression of these genes resulted in increased infection...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29765110/mast-cells-contribute-to-enterovirus-71-infection-induced-pulmonary-edema-in-neonatal-mice
#2
Yuefei Jin, Chao Zhang, Hui Wang, Guangyuan Zhou, Xiangpeng Wang, Rongguang Zhang, Shuaiyin Chen, Jingchao Ren, Lu Chen, Dejian Dang, Peng Zhang, Yuanlin Xi, Weidong Wu, Weiguo Zhang, Guangcai Duan
Enterovirus (EV) 71 infection has been widely acknowledged as the leading cause of severe hand, foot and mouth disease (HFMD), which may rapidly lead to fatal pulmonary edema. In this study, we established a mouse model for EV71 infection exhibiting high incidence of severe symptoms with pulmonary edema. Mast cells (MCs) accumulation, activation and allergic inflammation were found in the brains, lungs and skeletal muscle of mice after EV71 infection, especially in the lungs of mice. Levels of histamine, platelet-activating factor (PAF), interleukin (IL)-4, IL-5, IL-13, tumor necrosis factor-α (TNF-α), nitric oxide (NO), endocrine gland-derived vascular endothelial growth factor (EG-VEGF) and noradrenaline (NA) were increased in EV71-infected lungs...
May 15, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29753451/single-stage-reconstruction-of-post-traumatic-and-post-excisional-composite-perigenual-defects-using-chimeric-pedicled-propelled-osteomyocutaneous-fibula-flap
#3
T M Balakrishnan, Sruthi Sridhar, J Jaganmohan, Hemantha Kumar Govinda Rajan, Singaravadivelu Vaidyanathan
INTRODUCTION: Composite perigenual defects (CPGDs) are exacting the expertise of the reconstructive surgeons. Segmental skeletal defects continue to be a challenge for both orthopedic and plastic surgeons. There are many techniques available for the reconstruction of segmental skeletal defects in the perigenual region. This study explores the outcomes of pedicled chimeric propelled osteomyocutaneous fibula flap reconstruction of post traumatic and post excisional composite perigenual defects (CPGDs) MATERIALS AND METHODS: It was a retrospective study conducted from 2011 to 2016 including 16 patients (5 post excisional defects and 11 post traumatic defects)...
April 27, 2018: Injury
https://www.readbyqxmd.com/read/29753174/skeletal-muscle-fat-deposition-is-associated-with-hepatocellular-carcinoma-development-in-patients-with-chronic-liver-disease
#4
Yoshihiko Tachi, Akihiro Kozuka, Takanori Hirai, Yuko Kojima, Yoji Ishizu, Takashi Honda, Teiji Kuzuya, Kazuhiko Hayashi, Masatoshi Ishigami, Hidemi Goto
OBJECTIVES: The effect of skeletal muscle fat deposition on the prognosis of patients with chronic liver disease remains unclear. Skeletal muscle fat deposition can be estimated by attenuation of skeletal muscle in Hounsfield units (HU) on computed tomography (CT). The aim of this retrospective cohort study was to investigate the association between skeletal muscle fat deposition assessed by skeletal muscle attenuation (SMA), and hepatocellular carcinoma (HCC). METHODS: We enrolled 288 patients with chronic liver disease (139 men, 149 women; mean age 67...
March 21, 2018: Nutrition
https://www.readbyqxmd.com/read/29738748/femur-sparing-pattern-of-abnormal-fetal-growth-in-pregnant-women-from-new-york-city-after-maternal-zika-virus-infection
#5
Christie L Walker, Audrey A Merriam, Eric O Ohuma, Manjiri K Dighe, Michael Gale, Lakshmi Rajagopal, Aris T Papageorghiou, Cynthia Gyamfi-Bannerman, Kristina M Adams Waldorf
BACKGROUND: Zika virus (ZIKV) is a mosquito-transmitted flavivirus, which can induce fetal brain injury and growth restriction following maternal infection during pregnancy. Prenatal diagnosis of ZIKV-associated fetal injury in the absence of microcephaly is challenging due to an incomplete understanding of how maternal ZIKV infection affects fetal growth and the use of different sonographic reference standards around the world. We hypothesized that skeletal growth is unaffected by ZIKV infection and that the femur length can represent an internal standard to detect growth deceleration of the fetal head and/or abdomen by ultrasound...
May 5, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29732211/efficacy-of-sertraline-and-gabapentin-in-the-treatment-of-urethral-pain-syndrome-retrospective-results-of-a-single-institutional-cohort
#6
Özer Ural Cakici, Nurullah Hamidi, Emre Ürer, Emrah Okulu, Onder Kayigil
Introduction: Urethral pain syndrome is a subgroup of chronic pelvic pain syndromes and comprises a relatively challenging patient group in urological practice. Several different treatments have been used for the management of the condition from a mostly empirical basis. In this article, we present the results of a small cohort of young male patients treated with sertraline and gabapentin therapy. Material and methods: The data of 52 patients was retrospectively evaluated and 31 patients' data was included in this study...
2018: Central European Journal of Urology
https://www.readbyqxmd.com/read/29726395/in-vitro-and-in-vivo-drug-combination-for-the-treatment-of-trypanosoma-cruzi-infection-a-multivariate-approach
#7
Mariana Strauss, Jean Henrique S Rodrigues, María Silvina Lo Presti, Paola Carolina Bazán, Alejandra Lidia Báez, Patricia Paglini-Oliva, Celso Vataru Nakamura, Juan Manuel Bustamante, Héctor Walter Rivarola
Combination therapies based on the available drugs have been proposed as promising therapeutic alternatives for many diseases. Clomipramine (CLO) has been found to modify the evolution of the experimental infection. The objective of this study was to evaluate the combined effect of benznidazole (BZ) and clomipramine (CLO) against different life-stages of Trypanosoma cruzi in vitro and their efficacy in a murine model. Life-stages of T. cruzi, BZ-partially-resistant (Y) strain, were incubated with BZ and CLO and isobolograms and combination index (CI) were obtained...
April 18, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29721242/abdominal-rectus-muscle-pyomyositis-report-of-a-case-and-review-of-the-literature
#8
Tilemachos Fountoukis, Nikolaos Tsatsanidis, Maria Tilkeridou, Ioannis Konstantinou, Pantelis Fytas, Ioannis Skandalos
Pyomyositis is an uncommon primary bacterial infection of skeletal muscles, usually caused by Staphylococcus aureus. Predisposing factors for pyomyositis include immunodeficiency, trauma, injection drug use, concurrent infection and malnutrition. The diagnosis, staging of the disease and differential diagnosis are established by ultrasound, CT and MRI. Treatment involves surgical drainage and antibiotic therapy. We report a case of abdominal rectus muscle pyomyositis, which constitutes, as far as we know, the second reported in bibliography, while Prevotella disiens is firstly reported as causative agent...
March 29, 2018: Infectious Disease Reports
https://www.readbyqxmd.com/read/29720191/pulmonary-inflammation-induced-loss-and-subsequent-recovery-of-skeletal-muscle-mass-require-functional-poly-ubiquitin-conjugation
#9
Judith J M Ceelen, Annemie M W J Schols, Nathalie G M Thielen, Astrid Haegens, Douglas A Gray, Marco C J M Kelders, Chiel C de Theije, Ramon C J Langen
BACKGROUND: Pulmonary inflammation in response to respiratory infections can evoke muscle wasting. Increased activity of the ubiquitin (Ub)-proteasome system (UPS) and the autophagy lysosome pathway (ALP) have been implicated in inflammation-induced muscle atrophy. Since poly-Ub conjugation is required for UPS-mediated proteolysis and has been implicated in the ALP, we assessed the effect of impaired ubiquitin conjugation on muscle atrophy and recovery following pulmonary inflammation, and compared activation and suppression of these proteolytic systems to protein synthesis regulation...
May 2, 2018: Respiratory Research
https://www.readbyqxmd.com/read/29719480/nuclear-medicine-in-prostate-cancer-a-new-era-for-radiotracers
#10
REVIEW
Vincenzo Cuccurullo, Giuseppe Danilo Di Stasio, Luigi Mansi
Natural history of prostate cancer (PCa) is extremely variable, as it ranges from indolent and slow growing tumors to highly aggressive histotypes. Genetic background and environmental factors co-operate to the genesis and clinical manifestation of the tumor and include among the others race, family, specific gene variants (i.e., BRCA1 and BRCA2 mutations), acute and chronic inflammation, infections, diet and drugs. In this scenario, remaining actual the clinical interest of bone scan (BS) in detecting skeletal metastases, an important role in diagnostic imaging may be also carried out by, positron emission tomography/computed tomography (PET/CT) and PET/magnetic resonance imaging (PET/MRI), which combine morphological information provided by CT and MRI with functional and metabolic data provided by PET acquisitions...
April 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29716532/limb-saving-surgery-for-ewing-s-sarcoma-of-the-distal-tibia-a-case-report
#11
Naoki Mizoshiri, Toshiharu Shirai, Ryu Terauchi, Shinji Tsuchida, Yuki Mori, Yusei Katsuyama, Daichi Hayashi, Yoshinobu Oka, Toshikazu Kubo
BACKGROUND: Ewing's sarcoma is a primary malignant tumor of bone occurring mostly in childhood. Few effective reconstruction techniques are available after wide resection of Ewing's sarcoma at the distal end of the tibia. Reconstruction after wide resection is especially difficult in children, as it is necessary to consider the growth and activity of the lower limbs. CASE PRESENTATION: A 12-year-old Japanese boy had presented with right lower leg pain at age 8 years...
May 2, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29713871/continued-interest-and-controversy-vitamin-d-in-hiv
#12
REVIEW
Evelyn Hsieh, Michael T Yin
PURPOSE OF REVIEW: Vitamin D (VitD) deficiency is highly prevalent among HIV-infected individuals. Given the overlapping risk for several chronic disease and immunomodulatory outcomes from both long-standing HIV and VitD deficiency, there is great interest in clarifying the clinical role of VitD for this population. RECENT FINDINGS: Recent studies have expanded our knowledge regarding the epidemiology and mechanisms of VitD deficiency-associated outcomes in the setting of HIV...
April 30, 2018: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/29709547/differential-tissue-distribution-of-trypanosoma-cruzi-during-acute-experimental-infection-further-evidence-using-natural-isolates
#13
Mariana Strauss, Daniela A Velázquez López, Diego M Moya, P Carolina Bazán, Alejandra L Báez, H Walter Rivarola, Patricia A Paglini-Oliva, M Silvina Lo Presti
In the present work, we evaluated the effect of mixed Trypanosoma cruzi infections, studying the biological distribution of the different parasites in blood, heart and skeletal muscle during the acute phase. Albino Swiss mice were infected with different parasite strain/isolates or with a combination of them. The parasites in the different tissues were typified through specific PCR, population variability was analyzed through RFLP studies and parasitological and histopathological parameters were evaluated. We found a predominance of TcII and TcVI in all tissues samples respect to TcV and different parasite populations were found in circulation and in the tissues from the same host...
April 27, 2018: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/29706083/urban-suburban-differences-in-gp-requests-for-lumbosacral-spine-radiographs-in-a-primary-healthcare-centre-in-malta
#14
Glorianne Pullicino, Philip Sciortino, Sean Francalanza, Paul Sciortino, Richard Pullicino
INTRODUCTION: Due to demographic changes, growing demands, technological developments and rising healthcare costs, analysis of resources in rural and urban primary care clinics is crucial. However, data on primary care provision in rural and suburban areas are lacking. Moreover, health inequities in small island communities tend to be reduced by social homogeneity and an almost indiscernible urban-rural difference. The aim of the study was to examine the urban-suburban differences in the indications for lumbosacral spine radiographs in a public primary healthcare centre in Malta...
April 2018: Rural and Remote Health
https://www.readbyqxmd.com/read/29704727/how-do-skeletons-with-hiv-present-a-study-on-the-identified-cal-milano-cemetery-skeletal-collection
#15
Lucie Biehler-Gomez, Antonio Cabrini, Danilo De Angelis, Cristina Cattaneo
With the Human Immunodeficiency Virus (HIV) infection and Acquired Immune Deficiency Syndrome (AIDS) pandemic, the study of HIV/AIDS on bones has become of pivotal interest for research in bone pathologies, forensic applications (especially in the matter of identification when confronted to antemortem data) and medical purposes. In this paper, we document and discuss the macroscopic lesions found on the skeletons of nine individuals with known HIV, including four with known AIDS, coming from the identified CAL Milano Cemetery Skeletal Collection...
April 24, 2018: Legal Medicine
https://www.readbyqxmd.com/read/29700810/refining-the-phenotype-associated-with-biallelic-dnajc21-mutations
#16
G D'Amours, F Lopes, J Gauthier, V Saillour, C Nassif, R Wynn, N Alos, T Leblanc, Y Capri, S Nizard, E Lemyre, J L Michaud, V-A Pelletier, Y D Pastore, J-F Soucy
Inherited bone marrow failure syndromes (IBMFS) are caused by mutations in genes involved in genomic stability. Although they may be recognized by the association of typical clinical features, variable penetrance and expressivity are common, and clinical diagnosis is often challenging. DNAJC21, which is involved in ribosome biogenesis, was recently linked to bone marrow failure. However, the specific phenotype and natural history remain to be defined. We correlate molecular data, phenotype, and clinical history of five unreported affected children and all individuals reported in the literature...
April 26, 2018: Clinical Genetics
https://www.readbyqxmd.com/read/29700060/growth-hormone-transgenesis-in-coho-salmon-disrupts-muscle-immune-function-impacting-cross-talk-with-growth-systems
#17
Abdullah Alzaid, Jin-Hyoung Kim, Robert H Devlin, Samuel A M Martin, Daniel J Macqueen
Suppression of growth during infection may aid resource allocation towards effective immune function. Past work supporting this hypothesis in salmonid fish revealed an immune-responsive regulation of the insulin-like growth factor (IGF) system, an endocrine pathway downstream of growth hormone (GH). Skeletal muscle is the main target for growth and energetic storage in fish, yet little is known about how its growth is regulated during an immune response. We addressed this knowledge gap by characterizing muscle immune responses in size-matched coho salmon ( Oncorhynchus kisutch ) achieving different growth rates...
April 26, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29699830/prevalence-and-risk-factors-for-low-bone-mineral-density-in-antiretroviral-therapy-naive-hiv-infected-young-men
#18
J Paccou, N Viget, E Drumez, B Cortet, O Robineau
OBJECTIVE: We aimed to investigate the prevalence of low bone mineral density (BMD) and associated factors in antiretroviral therapy (ART)-naive HIV-infected young men. METHODS: In this cross-sectional study, dual-energy X-ray absorptiometry (DXA) was used to measure BMD. BMD at the lumbar spine, total hip and femoral neck sites was expressed as a Z-score (number of standard deviations away from the mean in an age, race and sex-matched reference population). Low BMD was defined as Z-scores≤-2 at any of the three sites...
April 23, 2018: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/29698814/ocular-abnormalities-in-congenital-zika-syndrome-are-the-ophthalmoscopic-findings-the-top-of-the-iceberg
#19
REVIEW
João Rafael de Oliveira Dias, Camila V Ventura, Bruno de Paula Freitas, Juliana Prazeres, Liana O Ventura, Vasco Bravo-Filho, Tomas Aleman, Albert Icksang Ko, Andréa Zin, Rubens Belfort, Mauricio Maia
Zika virus (ZIKV) is an arbovirus mainly transmitted to humans by mosquitoes from Aedes genus. Other ways of transmission include the perinatal and sexual routes, blood transfusion, and laboratory exposure. Although the first human cases were registered in 1952 in African countries, outbreaks were only reported since 2007, when entire Pacific islands were affected. In March 2015, the first cases of ZIKV acute infection were notified in Brazil and, to date, 48 countries and territories in the Americas have confirmed local mosquito-borne transmission of ZIKV...
April 23, 2018: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/29690908/adenosine-deaminase-deficiency-a-review
#20
REVIEW
Aisling M Flinn, Andrew R Gennery
Adenosine deaminase (ADA) deficiency leads to an accumulation of toxic purine degradation by-products, most potently affecting lymphocytes, leading to adenosine deaminase-deficient severe combined immunodeficiency. Whilst most notable affects are on lymphocytes, other manifestations include skeletal abnormalities, neurodevelopmental affects and pulmonary manifestations associated with pulmonary-alveolar proteinosis. Affected patients present in early infancy, usually with persistent infection, or with pulmonary insufficiency...
April 24, 2018: Orphanet Journal of Rare Diseases
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