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https://www.readbyqxmd.com/read/28749626/salivary-mmp-1-mmp-2-mmp-3-and-mmp-13-levels-in-patients-with-oral-lichen-planus-and-squamous-cell-carcinoma
#1
Tahereh Nosratzehi, Ebrahim Alijani, Marziyeh Moodi
The aim of present study was to evaluate salivary matrix metalloproteinase-1 (MMP-1), MMP-2, MMP-3 and MMP-13 levels in patients with oral lichen planus (OLP) and squamous cell carcinomas (SCC) as well as in healthy controls. Thirty cases of OLP (bilateral lesions, papular and reticular lesions, and Wickham lines) clinically and histopathologically (group A), 30 with oral SCCs (group B), and 30 with no history of oral cancer, other lesions or lichen planus (group C) were enrolled at the Department of Oral Medicine School of Dentistry, Zahedan, Iran...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28749623/utility-of-various-bronchoscopic-modalities-in-lung-cancer-diagnosis
#2
Vishak Acharya K, Unnikrishnan B, Archana Shenoy, Ramesh Holla
Background: Bronchoscopy and different techniques to obtain tissue sample form the cornerstone of lung cancer diagnostics. The utility, specificity and sensitivity of various techniques are compared against each other and also in relation to the tumour type, location and morphology. Aim: To assess and compare the utility of various bronchoscopic procedures in lung malignancies. Study also compares the utility of these techniques on tumour site, morphology and cell type. Methods: One hundred and fifty six patients with suspected malignancies in whom bronchoscopy was deemed as the primary diagnostic procedure were selected...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28749570/hepatocyte-derived-exosomes-promote-t-follicular-regulatory-cell-expansion-during-hcv-infection
#3
Dustin A Cobb, Lucy Golden-Mason, Hugo R Rosen, Young S Hahn
Hepatitis C virus (HCV) is a global health concern that can cause severe liver disease such as cirrhosis and hepatocellular carcinoma. Control of HCV requires vigorous T cell responses, yet CD4(+) T cells in chronic HCV patients are dysfunctional. T follicular regulatory (Tfr) cells are a subset of regulatory T cells that suppress T follicular helper (Tfh) cells and the generation of high affinity antibody-producing B cells. In this study, we examined the accumulation of Tfr cells in the liver compartment during chronic HCV infection and defined the cellular and molecular mechanisms underlying their expansion...
July 27, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28749553/myelopathy-in-beh%C3%A3-et-s-disease-the-bagel-sign
#4
Ugur Uygunoglu, Burcu Zeydan, Yesim Ozguler, Serdal Ugurlu, Emire Seyahi, Naci Kocer, Civan Islak, Kejal Kantarci, Sabahattin Saip, Aksel Siva, Orhun H Kantarci
OBJECTIVE: To describe the clinical and distinctive imaging features of myelopathy associated with Behçet's disease. METHODS: We evaluated the records of patients meeting the following criteria: a) fulfillment of the International Study Group criteria for Behçet's disease; b) clinically suggestive of myelopathy; c) simultaneous spinal cord and brain MRIs within 1 month of acute worsening of myelopathy; d) follow-up duration ≥1 year after initial MRI evaluation...
July 27, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28749548/c-myc-positive-relapsed-and-refractory-diffuse-large-b-cell-lymphoma-impact-of-additional-hits-and-outcomes-with-subsequent-therapy
#5
Narendranath Epperla, Kami J Maddocks, Mohammed Salhab, Julio C Chavez, Nishitha Reddy, Reem Karmali, Elvira Umyarova, Veronika Bachanova, Cristiana Costa, Martha Glenn, Oscar Calzada, Ana C Xavier, Zheng Zhou, Nasheed M Hossain, Francisco J Hernandez-Ilizaliturri, Zeina Al-Mansour, Stefan K Barta, Saurabh Chhabra, Frederick Lansigan, Amitkumar Mehta, Michael V Jaglal, Andrew Evans, Christopher R Flowers, Jonathon B Cohen, Timothy S Fenske, Mehdi Hamadani, Luciano J Costa
BACKGROUND: The impact of MYC proto-oncogene, basic helix-loop-helix (MYC) translocations (with or without additional rearrangements involving the B-cell lymphoma 2 [BCL2] or BCL6 genes) on the response to salvage therapy and survival in patients with diffuse large B-cell lymphoma (DLBCL) who experience primary treatment failure is not well defined. METHODS: This was a multicenter, retrospective study of the impact of MYC, BCL2, and BCL6 rearrangements in patients with DLBCL who failed to achieve complete remission or relapsed within 6 months after they completed upfront chemoimmunotherapy...
July 27, 2017: Cancer
https://www.readbyqxmd.com/read/28749416/anti-oxidative-stress-activity-is-essential-for-amanita-caesarea-mediated-neuroprotection-on-glutamate-induced-apoptotic-ht22-cells-and-an-alzheimer-s-disease-mouse-model
#6
Zhiping Li, Xia Chen, Wenqian Lu, Shun Zhang, Xin Guan, Zeyu Li, Di Wang
Amanita caesarea, an edible mushroom found mainly in Asia and southern Europe, has been reported to show good antioxidative activities. In the present study, the neuroprotective effects of A. caesarea aqueous extract (AC) were determined in an l-glutamic acid (l-Glu) induced HT22 cell apoptosis model, and in a d-galactose (d-gal) and AlCl₃-developed experimental Alzheimer's disease (AD) mouse model. In 25 mM of l-Glu-damaged HT22 cells, a 3-h pretreatment with AC strongly improved cell viability, reduced the proportion of apoptotic cells, restored mitochondrial function, inhibited the over-production of intracellular reactive oxygen species (ROS) and Ca(2+), and suppressed the high expression levels of cleaved-caspase-3, calpain 1, apoptosis-inducing factor (AIF) and Bax...
July 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28749414/adjuvantation-of-pulmonary-administered-influenza-vaccine-with-gpi-0100-primarily-stimulates-antibody-production-and-memory-b-cell-proliferation
#7
Harshad P Patil, José Herrera Rodriguez, Jacqueline de Vries-Idema, Tjarko Meijerhof, Henderik W Frijlink, Wouter L J Hinrichs, Anke Huckriede
Adjuvants are key components in vaccines, they help in reducing the required antigen dose but also modulate the phenotype of the induced immune response. We previously showed that GPI-0100, a saponin-derived adjuvant, enhances antigen-specific mucosal and systemic antibody responses to influenza subunit and whole inactivated influenza virus (WIV) vaccine administered via the pulmonary route. However, the impact of the GPI-0100 dose on immune stimulation and the immune mechanisms stimulated by GPI-0100 along with antigen are poorly understood...
July 27, 2017: Vaccines
https://www.readbyqxmd.com/read/28749257/first-record-of-hematologic-values-in-free-living-and-captive-maned-sloths-bradypus-torquatus-xenartha-bradypodidae
#8
Lilian S Catenacci, Aisla Nascimento, Elza S Muniz-Neta, Camila R Cassano, Sharon L Deem, Elizabeth S Travassos da Rosa, Patricia Parker, Alexandre D Munhoz
Bradypus torquatus is a rare and endemic sloth species from the Atlantic Forest, Brazil. Due to a lack of medical information including hematologic reference parameters for the species, hematologic baseline values were determined using samples from 14 clinically healthy B. torquatus , under captive (n = 7) and free-living (n = 7) conditions in Bahia State, Brazil. Additionally, the morphology of the blood cells is presented, with a demonstration that the Barr body chromosome may assist with sex determination of the species...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749131/lysine-deacetylases-exhibit-distinct-changes-in-activity-profiles-due-to-fluorophore-conjugation-of-substrates
#9
Tasha B Toro, Jenae R Bryant, Terry J Watt
Lysine deacetylases (KDACs) are enzymes that reverse the post-translational modification of lysine acetylation. Thousands of potential substrates, acetylated protein sequences, have been identified in mammalian cells. Properly regulated acetylation and deacetylation have been linked to many biological processes, while aberrant KDAC activity has also been linked to numerous diseases. Commercially available peptide substrates that are conjugated to fluorescent dye molecules, such as 7-amino-4-methylcoumarin (AMC), are commonly used to monitor deacetylation in studies addressing both substrate specificity and small molecule modulators of activity...
July 27, 2017: Biochemistry
https://www.readbyqxmd.com/read/28749113/increased-tumour-infiltration-of-cd4-and-cd8-t-lymphocytes-in-patients-with-triple-negative-breast-cancer-suggests-susceptibility-to-immune-therapy
#10
Bushra Sikandar, Muhammad Asif Qureshi, Saima Naseem, Saeed Khan, Talat Mirza
Background: Patients with triple negative breast cancer (TNBC) have limited therapeutic options, largely because the complex tumour environment is not well-characterized. These patients are potential, but largely un-fathomed, candidates for immunotherapy. It is therefore highly relevant to characterize leukocyte complexity in TNBCs. Objective: To investigate leukocyte complexity in tumour environment of patients with TNBCs. Materials and methods: A total of 104 consecutive breast cancer patients undergoing mastectomy were recruited in the study after ethical approval...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28749078/vitamin-d-insufficiency-correlates-with-peripheral-b10-cells-in-patients-with-pituitary-tumours
#11
Weimin Wang, Li Fu, Shengli Li, Zhiming Xu, Peng Qiu, Tong-Jiang Xu, Wei Yang, Yu-Bao Zhang, Guang-Ming Xu, Xiang-Dong Lu, Xinggang Li
The mechanism of pituitary gland tumour (PGT) is unclear. Aberrant immune tolerance is associated with the pathogenesis of tumour. Vitamin D and vitamin D receptor (VDR) are involved in the immune regulation. Interleukin (IL)-10 is one of the important immune regulatory molecules. This study aims to elucidate the role of VDR in the regulation of IL-10 in peripheral B cells of PGT patients. In this study, the peripheral blood samples were collected from PGT patients and healthy subjects. B cells were purified from the blood samples and analysed by RT-qPCR and Western blotting...
July 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28749066/donor-dependent-and-other-nondefined-factors-have-greater-influence-on-the-hepatic-phenotype-than-the-starting-cell-type-in-induced-pluripotent-stem-cell-derived-hepatocyte-like-cells
#12
James A Heslop, Richard Kia, Christopher S Pridgeon, Rowena L Sison-Young, Triantafillos Liloglou, Mohamed Elmasry, Stephen W Fenwick, John S Mills, Neil R Kitteringham, Chris E Goldring, B Kevin Park
No abstract text is available yet for this article.
August 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28749026/maxillary-unicystic-ameloblastoma-in-a-6-week-old-filly-evaluated-with-computed-tomography
#13
H L Smith, A J Rosenblatt, W W Suen, H Owen, B J Ahern
CASE REPORT: A 6-week-old Thoroughbred filly was presented for evaluation of an expansile mass overlying the right nasal passage and causing respiratory stertor. On skull radiographs, there was a loculated, soft tissue-opaque mass identified dorsal to the right upper premolars and effacing the right nasal cavity. Computed tomography (CT) revealed a locally extensive mass with relatively benign characteristics located centrally on the tooth root apices of the deciduous second premolar (506)...
August 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28748922/regulation-of-drosophila-hematopoietic-sites-by-activin-%C3%AE-from-active-sensory-neurons
#14
Kalpana Makhijani, Brandy Alexander, Deepti Rao, Sophia Petraki, Leire Herboso, Katelyn Kukar, Itrat Batool, Stephanie Wachner, Katrina S Gold, Corinna Wong, Michael B O'Connor, Katja Brückner
An outstanding question in animal development, tissue homeostasis and disease is how cell populations adapt to sensory inputs. During Drosophila larval development, hematopoietic sites are in direct contact with sensory neuron clusters of the peripheral nervous system (PNS), and blood cells (hemocytes) require the PNS for their survival and recruitment to these microenvironments, known as Hematopoietic Pockets. Here we report that Activin-β, a TGF-β family ligand, is expressed by sensory neurons of the PNS and regulates the proliferation and adhesion of hemocytes...
July 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28748854/ratios-of-t-helper-2-cells-to-t-helper-1-cells-and-cytokine-levels-in-patients-with-hepatitis-b
#15
Ming-Hui Li, Dan Zhang, Lu Zhang, Xiao-Jing Qu, Yao Lu, Ge Shen, Shu-Ling Wu, Min Chang, Ru-Yu Liu, Lei-Ping Hu, Hong-Xiao Hao, Wen-Hao Hua, Shu-Jing Song, Gang Wan, Shun-Ai Liu, Yao Xie
BACKGROUND: Hepatitis B is an immune response-mediated disease. The aim of this study was to explore the differences of ratios of T-helper (Th) 2 cells to Th1 cells and cytokine levels in acute hepatitis B (AHB) patients and chronic hepatitis B virus (HBV)-infected patients in immune-tolerance and immune-active phases. METHODS: Thirty chronic HBV-infected patients in the immune-tolerant phase (IT group) and 50 chronic hepatitis B patients in the immune-active (clearance) phase (IC group), 32 AHB patients (AHB group), and 13 healthy individuals (HI group) were enrolled in the study...
August 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28748759/targeting-kinase-activating-genetic-lesions-to-improve-therapy-of-pediatric-acute-lymphoblastic-leukemia
#16
Franca Raffaella, Natasa Karas Kuzelicki, Claudio Sorio, Eleonora Toffoletti, Oksana Montecchini, Alice Poropat, Marco Rabusin, Debora Curci, Dino Paladin, Gabriele Stocco, Giuliana Decorti
Acute lymphoblastic leukemia (ALL) is the most common hematologic malignancy in children, characterized by an abnormal proliferation of immature lymphoid cells. Thanks to risk-adapted combination chemotherapy treatments currently used, survival at 5 years has reached 90%. ALL is a heterogeneous disease from a genetic point of view: patients' lymphoblasts may harbor in fact several chromosomal alterations, some of which have prognostic and therapeutic value. Of particular importance is the translocation t(9;22)(q34;q11...
July 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28748659/mauritian-cynomolgus-macaques-with-m3m4-mhc-genotype-control-sivmac251-infection
#17
Hongzhao Li, Robert W Omange, Chris Czarnecki, Jorge F Correia-Pinto, Jose Crecente-Campo, Meika Richmond, Lin Li, Nancy Schultz-Darken, Maria J Alonso, James B Whitney, Francis A Plummer, Ma Luo
BACKGROUND: Understanding natural HIV control may lead to new preventative or therapeutic strategies. Several protective major histocompatibility complex (MHC) genotypes were found in humans and rhesus macaques. Here, we report a simian immunodeficiency virus (SIV) controller MHC genotype in Mauritian cynomolgus macaques (MCMs). METHODS: Twelve MHC-genotyped MCMs were infected with SIVmac251 and monitored for viral loads and CD4+ T-cell counts. RESULTS: Two macaques with M3M4 genotype exhibited the lowest peak viral loads (log plasma SIV RNA copies/mL), nearly 3 logs lower than those in most macaques with other MHC haplotype combinations, and set point viral loads below the level of detection limit by RT-qPCR (<2 log RNA copies/mL)...
August 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28748653/oral-bexarotene-for-post-transplant-cutaneous-t-cell-lymphoma
#18
Daniel J Lewis, Simo Huang, Madeleine Duvic
Organ transplant recipients receiving immunosuppression have an increased risk of developing post-transplant lymphoproliferative diseases (PTLDs). Traditionally, PTLDs refer to Epstein-Barr virus (EBV)-induced B-cell lymphoma. However, post-transplant T-cell lymphoma may also occur and tends to have a poorer response to reduced immunosuppressive therapy. As such, additional therapy is often needed for post-transplant T-cell lymphoma, including post-transplant cutaneous T-cell lymphoma (PT-CTCL). We present only the third case of PT-CTCL occurring after liver transplantation...
July 26, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28748605/management-of-chemotherapy-induced-febrile-neutropenia-in-pediatric-oncology-patients-a-north-american-survey-of-pediatric-hematology-oncology-and-pediatric-infectious-disease-physicians
#19
Rochelle R Maxwell, Dana Egan-Sherry, Jonathan B Gill, Michael E Roth
BACKGROUND: Chemotherapy-induced febrile neutropenia (FN) is traditionally managed with hospital admission for parenteral antibiotics until neutropenia resolves. Recent studies have explored risk stratification and the safety of managing "low-risk" patients as outpatients. Few studies have directly assessed pediatric provider preferences for managing FN. PROCEDURE: We conducted a survey of practicing US and Canadian pediatric hematology/oncology (PHO) and pediatric infectious disease (PID) physicians to assess their FN management preferences using case scenarios with varying risk profiles...
July 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28748581/coronary-artery-calcium-may-stabilize-following-islet-cell-transplantation-in-patients-with-type-1-diabetes
#20
J M Madrigal, R S Monson, B Hatipoglu, J Oberholzer, G T Kondos, K A Varady, K K Danielson
Islet cell transplantation can functionally cure type 1 diabetes, and also improve carotid-intima media thickness. This study provides a preliminary description of changes in coronary artery calcium following islet transplantation, and associated factors. Coronary artery calcium was measured in 14 patients with type 1 diabetes (11 had measures both pre- and post-transplant [mean 2.3 years]) in the University of Illinois at Chicago's clinical trial. Multivariable mixed-effects linear regression of repeated measures was used to quantify calcium change, and determine if this change was longitudinally associated with risk/protective factors...
July 27, 2017: Clinical Transplantation
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