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https://www.readbyqxmd.com/read/29306950/immune-consequences-of-in-vitro-infection-of-human-peripheral-blood-leukocytes-with-vesicular-stomatitis-virus
#1
Tomasz Tomczyk, Grażyna Wróbel, Radosław Chaber, Iwona Siemieniec, Egbert Piasecki, Małgorzata Krzystek-Korpacka, Beata U Orzechowska
BACKGROUND: Oncolytic vesicular stomatitis virus (VSV) can be delivered intravenously to target primary and metastatic lesions, but the interaction between human peripheral blood leukocytes (PBLs) and VSV remains poorly understood. Our study aimed to assess the overall immunological consequences of ex vivo infection of PBLs with VSV. METHODS: Phenotypic analysis of lymphocyte subsets and apoptosis were evaluated with flow cytometry. Caspase 3/7 activity was detected by luminescence assay...
January 6, 2018: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29303024/bortezomib-in-combination-with-dose-adjusted-epoch-etoposide-prednisone-vincristine-cyclophosphamide-and-doxorubicin-induces-long-term-survival-in-patients-with-plasmablastic-lymphoma-a-retrospective-analysis
#2
Christopher Dittus, Natalie Grover, Steven Ellsworth, Xianming Tan, Steven I Park
Plasmablastic lymphoma (PBL) is a rare and aggressive form of B-cell non-Hodgkin lymphoma. This subtype of lymphoma has a post-germinal center cell-of-origin called the plasmablast, and the immunophenotype is more consistent with that of a plasma cell than a lymphocyte. Because of these unique features, PBL is notoriously difficult to treat. Case reports and small reviews have evaluated the addition of agents directed against plasma cell disorders in combination with traditional lymphoma-directed regimens. We describe the largest case series to date, with the longest follow-up, evaluating bortezomib in combination with etoposide, prednisone, vincristine, cyclophosphamide, and doxorubicin (V-EPOCH) for the treatment of PBL...
January 5, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29301346/blood-coagulation-factor-x-exerts-differential-effects-on-adenovirus-entry-into-human-lymphocytes
#3
James S Findlay, Graham P Cook, G Eric Blair
It has been proposed that blood coagulation factors, principally factor X (FX), enhance the uptake of human adenovirus type 5 (Ad5) into cultured epithelial cells by bridging the viral hexon capsid protein and cell-surface heparan sulphate proteoglycans (HSPGs). We studied the effects of FX on Ad transduction of lymphoid cell lines (NK92MI, a natural killer cell line; Daudi, a B-cell line and Jurkat, a T-cell line) as well as primary peripheral blood lymphocytes (PBL) and HeLa epithelial cells using either replication-deficient Ad5, or a derivative in which the Ad5 fiber was replaced with that of another Ad type, Ad35, termed Ad5F35...
January 3, 2018: Viruses
https://www.readbyqxmd.com/read/29296171/micrornas-sequencing-unveils-distinct-molecular-subgroups-of-plasmablastic-lymphoma
#4
Maria Raffaella Ambrosio, Lucia Mundo, Sara Gazaneo, Matteo Picciolini, Prasad Satya Vara, Shaheen Sayed, Alessandro Ginori, Giuseppe Lo Bello, Leonardo Del Porro, Mohsen Navari, Stefano Ascani, Amhed Yonis, Lorenzo Leoncini, Pier Paolo Piccaluga, Stefano Lazzi
Plasmablastic lymphoma (PBL) is an aggressive lymphoma, often arising in the context of immunodeficiency and associated with Epstein-Barr virus (EBV) infection. The most frequently detected genetic alteration is the deregulation of MYC gene through the translocation - t(8;14)(q24;q32). The diagnosis of PBL is often challenging because it has an overlap in morphology, immunophenotype, cytogenetics and virus association with other lymphomas and plasma cell neoplasms; further, its molecular basis remains elusive...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29285857/update-on-research-and-application-of-problem-based-learning-in-medical-science-education
#5
Chuifeng Fan, Biying Jiang, Xiuying Shi, Enhua Wang, Qingchang Li
Problem-based learning (PBL) is a unique form of pedagogy dedicated to developing students' self-learning and clinical practice skills. After several decades of development, although applications vary, PBL has been recognized all over the world and implemented by many medical schools. This review summarizes and updates the application and study of PBL in medical education through the literature published between 1993 and early 2017. It focuses on understanding real medical PBL courses and ways to improve PBL to achieve better learning outcomes...
December 29, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/29279368/from-in-silico-hit-to-long-acting-late-stage-preclinical-candidate-to-combat-hiv-1-infection
#6
Shalley N Kudalkar, Jagadish Beloor, Elias Quijano, Krasimir A Spasov, Won-Gil Lee, José A Cisneros, W Mark Saltzman, Priti Kumar, William L Jorgensen, Karen S Anderson
The HIV-1 pandemic affecting over 37 million people worldwide continues, with nearly one-half of the infected population on highly active antiretroviral therapy (HAART). Major therapeutic challenges remain because of the emergence of drug-resistant HIV-1 strains, limitations because of safety and toxicity with current HIV-1 drugs, and patient compliance for lifelong, daily treatment regimens. Nonnucleoside reverse transcriptase inhibitors (NNRTIs) that target the viral polymerase have been a key component of the current HIV-1 combination drug regimens; however, these issues hamper them...
December 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29250828/cd4-cd25hi-foxp3-regulatory-t-cells-in-long-term-cardiac-xenotransplantation
#7
Avneesh K Singh, Joshua L Chan, Caleb N Seavey, Philip C Corcoran, Robert F Hoyt, Billeta G T Lewis, Marvin L Thomas, David L Ayares, Keith A Horvath, Muhammad M Mohiuddin
BACKGROUND: CD4+CD25Hi FoxP3+ T (Treg) cells are a small subset of CD4+ T cells that have been shown to exhibit immunoregulatory function. Although the absolute number of Treg cells in peripheral blood lymphocytes (PBL) is very small, they play an important role in suppressing immune reactivity. Several studies have demonstrated that the number of Treg cells, rather than their intrinsic suppressive capacity, may contribute to determining the long-term fate of transplanted grafts. In this study, we analyzed Treg cells in PBL of long-term baboon recipients who have received genetically modified cardiac xenografts from pig donors...
December 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/29233928/integrated-molecular-characterization-of-the-lethal-pediatric-cancer-pancreatoblastoma
#8
Tomoya Isobe, Masafumi Seki, Kenichi Yoshida, Masahiro Sekiguchi, Yusuke Shiozawa, Yuichi Shiraishi, Shunsuke Kimura, Misa Yoshida, Yoshikage Inoue, Akira Yokoyama, Nobuyuki Kakiuchi, Hiromichi Suzuki, Keisuke Kataoka, Yusuke Sato, Tomoko Kawai, Kenichi Chiba, Hiroko Tanaka, Teppei Shimamura, Motohiro Kato, Akihiro Iguchi, Asahito Hama, Tomoaki Taguchi, Masaharu Akiyama, Junya Fujimura, Akiko Inoue, Tsuyoshi Ito, Takao Deguchi, Chikako Kiyotani, Tomoko Iehara, Hajime Hosoi, Akira Oka, Masashi Sanada, Yukichi Tanaka, Kenichiro Hata, Satoru Miyano, Seishi Ogawa, Junko Takita
Pancreatoblastoma (PBL) is a rare pediatric pancreatic malignancy for which the molecular pathogenesis is not understood. In this study, we report the findings of an integrated multi-omics study of whole exome and RNA sequencing as well as genome-wide copy number and methylation analyses of 10 PBL cases. The PBL genome was characterized by a high frequency of aberrant activation of the Wnt signaling pathway, either via somatic mutations of CTNNB1 (90%) and copy-neutral loss of heterozygosity (CN-LOH) of APC (10%)...
December 12, 2017: Cancer Research
https://www.readbyqxmd.com/read/29233448/introducing-problem-based-learning-into-a-canadian-accredited-middle-eastern-educational-setting
#9
Ziad G Nasr, Kyle John Wilby
BACKGROUND AND PURPOSE: Adaption of active learning strategies into new cultures and contexts requires careful consideration to maximize effectiveness and meet intended objectives. The aim of this paper was to describe the adaption and implementation of problem-based learning (PBL) within a pharmacy curriculum in a Middle Eastern context. EDUCATIONAL ACTIVITY AND SETTING: PBL was implemented into the curriculum at Qatar University in 2014 and expanded in subsequent years to include differing courses and contexts...
July 2017: Currents in Pharmacy Teaching & Learning
https://www.readbyqxmd.com/read/29221459/team-based-learning-tbl-in-the-medical-curriculum-better-than-pbl
#10
Annette Burgess, Jane Bleasel, Inam Haq, Chris Roberts, Roger Garsia, Tomas Robertson, Craig Mellis
BACKGROUND: Internationally, medical schools have long used a variety of approaches to develop hybrid Problem based learning (PBL) curricula. However, Team-based learning (TBL), has gained recent popularity in medical education. TBL maintains the advantages of small group teaching and learning, but in contrast to Problem-based learning (PBL), does not require large numbers of tutors. In 2016, TBL was introduced to Year 1 of the Sydney Medical Program (SMP).This study sought to compare students' perceptions of using TBL in place of PBL...
December 8, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/29207458/implementation-of-problem-based-learning-in-medical-education-in-korea
#11
Sanghee Yeo, Bong Hyun Chang
PURPOSE: This study aims to identify how problem-based learning (PBL) has been implemented in Korean medical education, and how it is evaluated by each medical school. METHODS: For this study, a total of 40 medical schools in Korea were surveyed via e-mail. The survey tool was a questionnaire consisting of 22 questions which was developed independently by the researchers. RESULTS: Of the 40 medical schools, 35 schools were implementing PBL programs in their medical curriculum, while five were found not currently to be running the program...
December 2017: Korean Journal of Medical Education
https://www.readbyqxmd.com/read/29187222/unusual-presentation-of-plasmablastic-lymphoma-involving-ovarian-mature-cystic-teratoma-a-case-report
#12
Ita Hadžisejdić, Emina Babarović, Luka Vranić, Antica Duletić Načinović, Ksenija Lučin, Maja Krašević, Nives Jonjić
BACKGROUND: Plasmablastic lymphoma (PBL) is relatively new clinical entity described as a distinct subtype of diffuse large B-cell lymphoma (DLBCL). It is characterized by its aggressive nature and proliferation of large neoplastic cells resembling immunoblasts including cells with more obvious plasmacytic differentiation. In this case report, we describe an unexpected finding of PBL associated with a mature cystic teratoma of the ovary in a young immune competent woman. CASE PRESENTATION: A 19-year old woman was admitted to the hospital with generalized lymphadenopathy, a pelvic tumor mass measuring 35 × 30 cm and a 4 cm lump in her right breast...
November 29, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/29184209/a-craniofacial-specific-monosynaptic-circuit-enables-heightened-affective-pain
#13
Erica Rodriguez, Katsuyasu Sakurai, Jennie Xu, Yong Chen, Koji Toda, Shengli Zhao, Bao-Xia Han, David Ryu, Henry Yin, Wolfgang Liedtke, Fan Wang
Humans often rank craniofacial pain as more severe than body pain. Evidence suggests that a stimulus of the same intensity induces stronger pain in the face than in the body. However, the underlying neural circuitry for the differential processing of facial versus bodily pain remains unknown. Interestingly, the lateral parabrachial nucleus (PBL), a critical node in the affective pain circuit, is activated more strongly by noxious stimulation of the face than of the hindpaw. Using a novel activity-dependent technology called CANE developed in our laboratory, we identified and selectively labeled noxious-stimulus-activated PBL neurons and performed comprehensive anatomical input-output mapping...
December 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/29169067/the-role-of-personal-resilience-and-personality-traits-of-healthcare-students-on-their-attitudes-towards-interprofessional-collaboration
#14
Michal Avrech Bar, Michal Katz Leurer, Sigalit Warshawski, Michal Itzhaki
BACKGROUND: Interprofessional collaboration (IPC) improves communication between healthcare workers and healthcare delivery. Interprofessional education (IPE) is essential in preparing healthcare students for cooperating with other healthcare disciplines in a real work setting. Although higher education settings have a responsibility to provide collaborative healthcare practice to students, IPE has not yet been prompted worldwide as a formal division in health professional education and in Israel IPE among health professions students is scarce...
November 15, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/29162061/medical-student-attitudes-and-educational-interventions-to-prevent-neurophobia-a-longitudinal-study
#15
Lisa Shiels, Pratish Majmundar, Aleksander Zywot, John Sobotka, Christine S M Lau, Tuula O Jalonen
BACKGROUND: With an aging American population, the burden of neurologic disease is intensifying and the decline in neurology residents and practicing neurologists is leaving these patients helpless and unable to find care. 'Neurophobia', a chronic illness that begins early in medical school, has been identified as a cause for the low number of neurology residents. METHODS: A longitudinal study surveyed medical students at the beginning of their first year (M1) and then again at the beginning of their second year (M2)...
November 21, 2017: BMC Medical Education
https://www.readbyqxmd.com/read/29150676/severe-pollution-in-china-amplified-by-atmospheric-moisture
#16
Xuexi Tie, Ru-Jin Huang, Junji Cao, Qiang Zhang, Yafang Cheng, Hang Su, Di Chang, Ulrich Pöschl, Thorsten Hoffmann, Uli Dusek, Guohui Li, Douglas R Worsnop, Colin D O'Dowd
In recent years, severe haze events often occurred in China, causing serious environmental problems. The mechanisms responsible for the haze formation, however, are still not well understood, hindering the forecast and mitigation of haze pollution. Our study of the 2012-13 winter haze events in Beijing shows that atmospheric water vapour plays a critical role in enhancing the heavy haze events. Under weak solar radiation and stagnant moist meteorological conditions in winter, air pollutants and water vapour accumulate in a shallow planetary boundary layer (PBL)...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29104625/high-expression-of-long-chain-acyl-coenzyme-a-synthetase-1-in-peripheral-blood-may-be-a-molecular-marker-for-assessing-the-risk-of-acute-myocardial-infarction
#17
Liping Yang, Yushuang Yang, Daoyuan Si, Kaiyao Shi, Dongna Liu, Heyu Meng, Fanbo Meng
The current study aimed to investigate whether the increased expression of long chain acyl-coenzymeA synthetase 1 (ACSL1) in peripheral blood leukocytes (PBL) may be a molecular marker for the genetic evaluation of acute myocardial infarction (AMI). The mechanism of action of ACSL1 in the pathogenesis of AMI was also investigated. A total of 75 patients with AMI and 70 individuals without coronary heart disease were selected to participate in the present study. The demographic and clinical information of the enrolled subjects was recorded...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29101395/a-teleost-cd46-is-involved-in-the-regulation-of-complement-activation-and-pathogen-infection
#18
Mo-Fei Li, Zhi-Hai Sui, Li Sun
In mammals, CD46 is involved in the inactivation of complement by factor I (FI). In teleost, study on the function of CD46 is very limited. In this study, we examined the immunological property of a CD46 molecule (CsCD46) from tongue sole, a teleost species with important economic value. We found that recombinant CsCD46 (rCsCD46) interacted with FI and inhibited complement activation in an FI-dependent manner. rCsCD46 also interacted with bacterial pathogens via a different mechanism to that responsible for the FI interaction, involving different rCsCD46 sites...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29096591/comparison-between-flipped-classroom-and-lecture-based-classroom-in-ophthalmology-clerkship
#19
Fen Tang, Chuan Chen, Yi Zhu, Chengguo Zuo, Yimin Zhong, Nan Wang, Lijun Zhou, Yuxian Zou, Dan Liang
BACKGROUND: In recent years, the flipped classroom method of teaching has received much attention in health sciences education. However, the application of flipped classrooms in ophthalmology education has not been well investigated. OBJECTIVE: The goal of this study was to investigate the effectiveness and acceptability of the flipped classroom approach to teaching ophthalmology at the clerkship level. DESIGN: Ninety-five fourth year medical students in an ophthalmology clerkship were randomly divided into two groups...
2017: Medical Education Online
https://www.readbyqxmd.com/read/29092557/articulatory-characteristics-of-preboundary-lengthening-in-interaction-with-prominence-on-tri-syllabic-words-in-american-english
#20
Sahyang Kim, Jiyoung Jang, Taehong Cho
This study investigated articulation of preboundary lengthening (PBL) in tri-syllabic pseudo words (bábaba, babába, bababá) in American English. Results from 10 speakers showed that PBL was modulated by the degree of prominence, i.e., the less prominent, the more PBL. PBL was attracted to the penultimate stressed syllable but only when the word received no pitch accent whereas the antepenultimate syllable showed no PBL. Kinematically, PBL was accompanied by a larger movement along with an increase in peak velocity, showing a kind of boundary-related articulatory strengthening, although there was some evidence of temporal expansion possibly due to lowered stiffness...
October 2017: Journal of the Acoustical Society of America
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