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https://www.readbyqxmd.com/read/27913304/effects-of-nongenetic-factors-on-immune-cell-dynamics-in-early-childhood-the-generation-r-study
#1
Diana van den Heuvel, Michelle A E Jansen, Kazem Nasserinejad, Willem A Dik, Ellen G van Lochem, Liesbeth E Bakker-Jonges, Halima Bouallouch-Charif, Vincent W V Jaddoe, Herbert Hooijkaas, Jacques J M van Dongen, Henriëtte A Moll, Menno C van Zelm
BACKGROUND: . Numbers of blood leukocyte subsets are highly dynamic in childhood and differ greatly between individuals. Inter-individual variation is only partly accounted for by genetic factors. OBJECTIVE: Determine which nongenetic factors affect the dynamics of innate leukocytes, and naive and memory lymphocyte subsets. METHODS: . We performed six-color flow cytometry and linear mixed effect modeling to define the dynamics of 62 leukocyte subsets from birth to 6 years of age in 1,182 children with one to five measurements per individual...
November 29, 2016: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27908284/obscured-hemorrhagic-pancreatitis-after-orthotopic-heart-transplantation-complicated-with-acute-right-heart-failure-and-hepatic-dysfunction-a-case-report
#2
Ting-Wei Lin, Meng-Ta Tsai, Jun-Neng Roan, Yi-Sheng Liu, Hong-Ming Tsai, Chwan-Yau Luo
BACKGROUND: Pancreatitis is a serious complication after cardiac surgery and can lead to significant morbidities and mortality. The incidence of pancreatitis is even higher in patients undergoing heart transplantation than in those undergoing other cardiac surgeries. Nevertheless, the clinical presentations of pancreatitis are frequently atypical in these patients. CASE PRESENTATION: We report a heart recipient who was complicated with acute right heart failure initially after orthotopic heart transplantation and developed devastating unanticipated hemorrhagic pancreatitis 1 month after the transplantation...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27905258/hla-mismatched-haploidentical-transplantation-using-low-dose-anti-thymocyte-globulin-atg-thymoglobulin
#3
Shinichi Kako, Yu Akahoshi, Naonori Harada, Hirofumi Nakano, Kazuaki Kameda, Tomotaka Ugai, Ryoko Yamasaki, Hidenori Wada, Yuko Ishihara, Koji Kawamura, Kana Sakamoto, Miki Sato, Masahiro Ashizawa, Kiriko Terasako-Saito, Shun-Ichi Kimura, Misato Kikuchi, Hideki Nakasone, Rie Yamazaki, Junya Kanda, Yoshinobu Kanda
Objectives To clarify optimal strategies for human leukocyte antigen (HLA)-mismatched haploidentical hematopoietic stem cell transplantation (HSCT). Methods Twelve patients who underwent HSCT from a haploidentical related donor using low-dose thymoglobulin were analyzed retrospectively. Thymoglobulin was added to conditioning regimens at 2.5 mg/kg/day for 2 days (days -4 and -3). Prophylaxis against graft-versus-host disease (GVHD) was performed with cyclosporine and methotrexate. Results The median age of the patients was 33 years...
December 1, 2016: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/27888015/early-and-long-term-impaired-t-lymphocyte-immune-reconstitution-after-cord-blood-transplantation-with-antithymocyte-globulin
#4
Nerea Castillo, Irene García-Cadenas, Pere Barba, Carme Canals, Cristina Díaz-Heredia, Rodrigo Martino, Christelle Ferrà, Isabel Badell, Izaskun Elorza, Jorge Sierra, David Valcárcel, Sergio Querol
Immune reconstitution is crucial to the success of allogeneic hematopoietic stem cell transplantation. Umbilical cord blood transplantation (UCBT) has been associated with delayed immune reconstitution. We characterized the kinetics and investigated the risk variables affecting the main lymphocyte subsets recovery in 225 consecutive pediatric and adult patients [males, n=126, median age=15, range 0.3-60, interquartile range, 4-35] who underwent myeloablative single-UCBT between 2005 and 2015 for malignant and non-malignant disorders...
November 22, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27881652/inhibition-of-human-cytomegalovirus-pul89-terminase-subunit-blocks-virus-replication-and-genome-cleavage
#5
Yan Wang, Lili Mao, Jayakanth Kankanala, Zhengqiang Wang, Robert J Geraghty
: Human cytomegalovirus terminase complex cleaves the concatemeric genomic DNA into unit lengths during genome packaging and particle assembly. This process is an attractive drug target because cleavage of concatemeric DNA is not required in mammalian cell DNA replication, indicating that drugs targeting the terminase complex could be safe and selective. One component of the human cytomegalovirus terminase complex, pUL89, provides the endonucleolytic activity for genome cleavage and the domain responsible is reported to have an RNase H-like fold...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27879380/performance-of-leak-compensation-in-all-age-icu-ventilators-during-volume-targeted-neonatal-ventilation-a-lung-model-study
#6
Taiga Itagaki, Desmond J Bennett, Christopher T Chenelle, Daniel F Fisher, Robert M Kacmarek
BACKGROUND: Volume-targeted ventilation is increasingly used in low birthweight infants because of the potential for reducing volutrauma and avoiding hypocapnea. However, it is not known what level of air leak is acceptable during neonatal volume-targeted ventilation when leak compensation is activated concurrently. METHODS: Four ICU ventilators (Servo-i, PB980, V500, and Avea) were compared in available invasive volume-targeted ventilation modes (pressure control continuous spontaneous ventilation [PC-CSV] and pressure control continuous mandatory ventilation [PC-CMV])...
November 22, 2016: Respiratory Care
https://www.readbyqxmd.com/read/27875822/cellular-senescence-immunosenescence-and-hiv
#7
Tamàs Fülöp, Georges Herbein, Andrea Cossarizza, Jacek M Witkowski, Eric Frost, Gilles Dupuis, Graham Pawelec, Anis Larbi
Aging is a complex biological process that leads to several physiological changes. Among these changes, the most striking are those involving the innate and adaptive parts of the immune system. Furthermore, these changes are associated with a low-grade inflammation called inflamm-aging, which is the result of several lifelong antigenic stimulations, including chronic viral infections such as cytomegalovirus. Immunosenescence, concomitantly with inflamm-aging, is considered as the leading cause of age-related diseases including cardiovascular, neurodegenerative and metabolic diseases, and cancer...
2017: Interdisciplinary Topics in Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27874833/a-herpesviral-induction-of-rae-1-nkg2d-ligand-expression-occurs-through-release-of-hdac-mediated-repression
#8
Trever T Greene, Maria Tokuyama, Giselle M Knudsen, Michele Kunz, James Lin, Alexander L Greninger, Victor R DeFilippis, Joseph L DeRisi, David H Raulet, Laurent Coscoy
Natural Killer (NK) cells are essential for control of viral infection and cancer. NK cells express NKG2D, an activating receptor that directly recognizes NKG2D ligands. These are expressed at low level on healthy cells, but are induced by stresses like infection and transformation. The physiological events that drive NKG2D ligand expression during infection are still poorly understood. We observed that the mouse cytomegalovirus encoded protein m18 is necessary and sufficient to drive expression of the RAE-1 family of NKG2D ligands...
November 22, 2016: ELife
https://www.readbyqxmd.com/read/27870919/cytomegalovirus-reinfections-stimulate-cd8-t-memory-inflation
#9
Joanne Trgovcich, Michelle Kincaid, Alicia Thomas, Marion Griessl, Peter Zimmerman, Varun Dwivedi, Valerie Bergdall, Paul Klenerman, Charles H Cook
Cytomegalovirus (CMV) has been shown to induce large populations of CD8 T-effector memory cells that unlike central memory persist in large quantities following infection, a phenomenon commonly termed "memory inflation". Although murine models to date have shown very large and persistent CMV-specific T-cell expansions following infection, there is considerable variability in CMV-specific T-memory responses in humans. Historically such memory inflation in humans has been assumed a consequence of reactivation events during the life of the host...
2016: PloS One
https://www.readbyqxmd.com/read/27869808/low-dose-thymoglobulin-as-second-line-treatment-for-steroid-resistant-acute-gvhd-an-analysis-of-the-jshct
#10
M Murata, K Ikegame, Y Morishita, H Ogawa, K Kaida, H Nakamae, T Ikeda, T Nishida, M Inoue, T Eto, K Kubo, T Sakura, T Mori, N Uchida, T Ashida, Y Matsuhashi, Y Miyazaki, T Ichinohe, Y Atsuta, T Teshima
A nationwide retrospective study for the clinical outcomes of 99 patients who had received thymoglobulin at a median total dose of 2.5 mg/kg (range, 0.5-18.5 mg/kg) as a second-line treatment for steroid-resistant acute GvHD was conducted. Of the 92 evaluable patients, improvement (complete or partial response) was observed in 55 patients (60%). Multivariate analysis demonstrated that male sex and grade III and IV acute GvHD were associated with a lower improvement rate, whereas thymoglobulin dose (<2...
November 21, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27859428/low-p16-ink4a-expression-in-early-passage-human-prostate-basal-epithelial-cells-enables-immortalization-by-telomerase-expression-alone
#11
Mindy Kim Graham, Lorenzo Principessa, Lizamma Antony, Alan K Meeker, John T Isaacs
BACKGROUND: There are two principal senescence barriers that must be overcome to successfully immortalize primary human epithelial cells in culture, stress-induced senescence, and replicative senescence. The p16(INK4a) /retinoblastoma protein (p16/Rb) pathway mediates stress-induced senescence, and is generally upregulated by primary epithelial cells in response to the artificial conditions from tissue culture. Replicative senescence is associated with telomere loss. Following each round of cell division, telomeres progressively shorten...
November 8, 2016: Prostate
https://www.readbyqxmd.com/read/27826043/the-interaction-between-human-papillomavirus-and-other-viruses
#12
REVIEW
J T Guidry, R S Scott
The etiological role of human papillomavirus (HPV) in anogenital tract and head and neck cancers is well established. However, only a low percentage of HPV-positive women develop cancer, indicating that HPV is necessary but not sufficient in carcinogenesis. Several biological and environmental cofactors have been implicated in the development of HPV-associated carcinoma that include immune status, hormonal changes, parity, dietary habits, tobacco usage, and co-infection with other sexually transmissible agents...
November 5, 2016: Virus Research
https://www.readbyqxmd.com/read/27819688/allogeneic-haematopoietic-stem-cell-transplant-in-patients-with-lower-risk-myelodysplastic-syndrome-a-retrospective-analysis-on-behalf-of-the-chronic-malignancy-working-party-of-the-ebmt
#13
M Robin, R Porcher, W Zinke-Cerwenka, A van Biezen, L Volin, G Mufti, C Craddock, J Finke, C Richard, J Passweg, A Peniket, J Maertens, G Sucak, T Gedde-Dahl, A Vitek, A Nagler, D Blaise, D Beelen, N Maillard, R Schwerdtfeger, T de Witte, N Kroger
We report a retrospective analysis of 246 myelodysplastic syndrome (MDS) patients in the EBMT (The European Society for Blood and Marrow Transplantation) database who were transplanted for International Prognostic Scoring System (IPSS) low or intermediate-1 disease. The majority of these patients (76%) were reclassified as intermediate or higher risk according to R-IPSS. The 3-year overall survival (OS) and PFS were 58% and 54%, respectively. In a multivariate analysis, adverse risk factors for PFS were marrow blast percentage (hazard ratio (HR): 1...
November 7, 2016: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/27815572/phase-i-ii-study-of-lenalidomide-and-alemtuzumab-in-refractory-chronic-lymphocytic-leukemia-cll-effects-on-t-cells-and-immune-checkpoints
#14
Maria Winqvist, Fariba Mozaffari, Marzia Palma, Sandra Eketorp Sylvan, Lotta Hansson, Håkan Mellstedt, Anders Österborg, Jeanette Lundin
This phase I-II study explored safety, immunomodulatory and clinical effects of lenalidomide (weeks 1-16) and alemtuzumab (weeks 5-16) in 23 patients with refractory chronic lymphocytic leukemia. Most patients had Rai stage III/IV disease and were heavily pretreated (median 4 prior therapies), and 61% had del(17p)/del(11q). Eleven of 19 evaluable patients (58%) responded, with a median response duration of 12 months (1-29+); time to progression was short in non-responders. Lenalidomide had a narrow therapeutic dose range, 2...
November 4, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27814594/cardiac-allograft-vasculopathy-microvascular-arteriolar-capillaries-capioles-and-survival
#15
Carlos A Labarrere, Beate R Jaeger, Ghassan S Kassab
Cardiac allograft vasculopathy (CAV) is a serious complication of heart transplantation in adults and children. Risk factors include human leukocyte antigen mismatches, number and duration of rejection episodes, type of immunosuppression, antibody-mediated rejection, hypertension, hyperlipidemia, obesity, smoking, diabetes, cytomegalovirus infection, mode of donor brain death, donor age and ischemia/reperfusion injury. Endothelial injury and dysfunction in CAV are characterized by changes in adhesion molecules and up-regulation of major histocompatibility class II antigens followed by endothelial activation of complement C4d...
January 1, 2017: Frontiers in Bioscience (Elite Edition)
https://www.readbyqxmd.com/read/27789617/cytomegalovirus-seropositivity-predicts-a-decline-in-the-t-cell-but-not-the-antibody-response-to-influenza-in-vaccinated-older-adults-independent-of-type-2-diabetes-status
#16
Kamran Haq, Tamas Fulop, Gale Tedder, Beth Gentleman, Hugo Garneau, Graydon S Meneilly, Alison Kleppinger, Graham Pawelec, Janet E McElhaney
Type 2 diabetes mellitus (T2DM) and persistent cytomegalovirus (CMV) infection are postulated contributors to inflammatory processes that impact on the age-related decline in T-cell responses to influenza vaccination. Older subjects with T2DM (n = 30) and healthy aged controls (n = 40) were enrolled and received influenza vaccination in this study. Serum inflammatory markers and CMV serostatus were measured. Pre- to post-vaccination changes in serum antibody titers to the A/H3N2 strain, and levels of granzyme B (GrB, cytotoxic T lymphocytes) in lysates and cytokines in supernatants from influenza A/H3N2-challenged peripheral blood mononuclear cells were measured...
October 27, 2016: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/27784445/-clinical-features-of-acute-respiratory-failure-due-to-pneumocystis-pneumonia-in-non-hiv-immunocompromised-patients
#17
X Huang, L Weng, L Yi, M Li, Y Y Feng, Y Tian, J G Xia, Q Y Zhan, B Du
Objective: To examine the clinical features of patients with acute respiratory failure (ARF) caused by pneumocystis pneumonia (PCP) admitted into two medical intensive care units (ICU) in non- human immunodeficiency virus (HIV) infected immunocompromised patients. Methods: A retrospective review was conducted among 92 non-HIV patients with ARF caused by PCP in medical ICU of Peking Union Medical College Hospital and China-Japan Friendship Hospital between Jan 2010 and Dec 2015. Patient characteristics, clinical presentation, laboratory and radiological findings, complications, as well as therapy and mortality were included in the analysis...
October 18, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27770817/human-cytomegalovirus-reactivation-from-latency-validation-of-a-switch-model-in-vitro
#18
Maria-Cristina Arcangeletti, Rosita Vasile Simone, Isabella Rodighiero, Flora De Conto, Maria-Cristina Medici, Clara Maccari, Carlo Chezzi, Adriana Calderaro
BACKGROUND: Human cytomegalovirus (HCMV) is an opportunistic pathogen leading to severe and even fatal diseases in 'at-risk' categories of individuals upon primary infection or the symptomatic reactivation of the endogenous virus. The mechanisms which make the virus able to reactivate from latency are still matter of intense study. However, the very low number of peripheral blood monocytes (an important latent virus reservoir) harbouring HCMV DNA makes it very difficult to obtain adequate viral quantities to use in such studies...
October 22, 2016: Virology Journal
https://www.readbyqxmd.com/read/27769314/maternal-and-congenital-cytomegalovirus-infection-and-zero-rubella-igm-prevalence-in-newborns-in-st-paul-s-hospital-millennium-medical-college
#19
Yeshwondm Mamuye, Balkachew Nigatu, Delayehu Bekele, Mekonen Getahun
BACKGROUND: Maternal cytomegalovirus (CMV) and Rubella infections result in adverse neonatal outcomes. Both CMV and Rubella are more widespread in developing countries and in communities with lower socioeconomic status. Thus, the aim of this study was to determine IgM specific to CMV and Rubella among newborns and Maternal CMV-seroprevalence and to identify risk factors. METHOD AND FINDING: Using cross sectional study design a total of 312 (156 newborns and 156 mothers) study participants were recruited by simple random sampling technique from gynecology outpatient department (OPD) and ward, starting from April 1, 2015 to June 30, 2015...
October 21, 2016: BMC Research Notes
https://www.readbyqxmd.com/read/27760284/cervical-viral-infections-among-asymptomatic-bulgarian-women
#20
Jeni Staykova, Tanja Belovska, Ayla Murad, Sevinch Kakid, Aneta Nacheva, Evelina Shikova
AIM: Although sexually transmitted viral infections are significant and increasing public health concern, little is known about their prevalence among Bulgarian women. The aim of this study was to investigate cervical viral infections in asymptomatic women. METHODS: The study group included 52 randomly selected asymptomatic female volunteers from Bulgarian border town Kardzhali. Cervical specimens were tested by real-time PCR for human papillomaviruses (HPV), herpes simplex virus (HSV) types 1 and 2, cytomegalovirus (CMV), Epstein-Barr virus (EBV), and human immunodeficiency virus (HIV)...
September 2016: Central European Journal of Public Health
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