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pediatric immunology

Tasuku Suzuki, Yoji Sasahara, Atsuo Kikuchi, Humihiko Kakuta, Toshihiko Kashiwabara, Takashi Ishige, Yoshiko Nakayama, Masanori Tanaka, Akihiro Hoshino, Hirokazu Kanegane, Daiki Abukawa, Shigeo Kure
PURPOSE: Pediatric inflammatory bowel disease (IBD) is a heterogeneous disorder caused by multiple factors. Although genetic and immunological analyses are required for a definitive diagnosis, no reports of a comprehensive genetic study of a Japanese population are available. METHODS: In total, 35 Japanese patients <16 years of age suffering from IBD, including 27 patients aged <6 years with very early-onset IBD, were enrolled in this multicenter study. Exome and targeted gene panel sequencing was performed for all patients...
October 17, 2016: Journal of Clinical Immunology
Raymond Y Huang, Patrick Y Wen
The Response Assessment in Neuro-Oncology (RANO) Working Group is an international multidisciplinary group whose goal is to improve response criteria and define endpoints for neuro-oncology trials. The RANO criteria for high-grade gliomas attempt to address the issues of pseudoprogression, pseudoresponse, and nonenhancing tumor progression. Incorporation of advanced MR imaging may eventually help improve the ability of these criteria to define enhancing and nonenhancing disease better. The RANO group has also developed criteria for neurologic response and evaluation of patients receiving immunologic therapies...
November 2016: Magnetic Resonance Imaging Clinics of North America
Oh Eun Kwon, Sang Hyun Park, Sung Su Kim, Haeng Seon Shim, Min Gyeong Kim, Young Il Kim, Sang Hoon Kim, Seung Geun Yeo
OBJECTIVES: Middle ear effusion has been reported to be associated with immune responses in patients with otitis media with effusion (OME). Although various cytokines are involved in immunologic responses in patients with OME, no study to date has assessed the involvement of the pro-inflammatory cytokines interleukin (IL)-17 and IL-22. This study analyzed the levels of expression of IL-17 and IL-22 in the middle ear effusion of patients with OME. METHODS: Patients aged <11 years who were diagnosed with chronic OME and underwent ventilation tube insertion from May 2013 to August 2015 were enrolled...
November 2016: International Journal of Pediatric Otorhinolaryngology
María Belén Almejún, Bárbara Carolina Campos, Virginia Patiño, Miguel Galicchio, Marta Zelazko, Matías Oleastro, Pablo Oppezzo, Silvia Danielian
BACKGROUND: Common variable immunodeficiency is a heterogeneous syndrome characterized by impaired immunoglobulin production and usually presents with a normal quantity of peripheral B cells. Most attempts aiming to classify these patients have mainly been focused on T cell phenotypes or B cell phenotypes and their ability to produce protective antibodies, but it is still a major challenge to find a suitable classification that includes the clinical and immunological heterogeneity of these patients...
October 3, 2016: Journal of Allergy and Clinical Immunology
Thomas G Blanchard, Steven J Czinn
Establishment of Helicobacter pylori infection as an etiologic agent of peptic ulcer disease and other gastric pathologies marked a revolution in gastroenterology which spurred an enormous interest in gastric physiology and immunology research. The association was soon also demonstrated in children as well. Application of antimicrobial therapies have proven remarkably efficacious in eradicating H. pylori and curing pediatric patients of duodenal ulcers as well as gastritis, negating a lifetime of ineffective therapy and life-threatening disease...
October 4, 2016: Pediatric Research
Jennifer A Muszynski, Philip C Spinella, Jill M Cholette, Jason P Acker, Mark W Hall, Nicole P Juffermans, Daniel P Kelly, Neil Blumberg, Kathleen Nicol, Jennifer Liedel, Allan Doctor, Kenneth E Remy, Marisa Tucci, Jacques Lacroix, Philip J Norris
Transfusion-related immunomodulation (TRIM) in the intensive care unit (ICU) is difficult to define and likely represents a complicated set of physiologic responses to transfusion, including both proinflammatory and immunosuppressive effects. Similarly, the immunologic response to critical illness in both adults and children is highly complex and is characterized by both acute inflammation and acquired immune suppression. How transfusion may contribute to or perpetuate these phenotypes in the ICU is poorly understood, despite the fact that transfusion is common in critically ill patients...
October 2, 2016: Transfusion
Kanokvalai Kulthanan, Papapit Tuchinda, Leena Chularojanamontri, Pattriya Chanyachailert, Wiwat Korkij, Amornsri Chunharas, Siriwan Wananukul, Wanida Limpongsanurak, Suwat Benjaponpitak, Wanee Wisuthsarewong, Kobkul Aunhachoke, Vesarat Wessagowit, Pantipa Chatchatee, Penpun Wattanakrai, Orathai Jirapongsananuruk, Jettanong Klaewsongkram, Nopadon Noppakun, Pakit Vichyanond, Puan Suthipinittharm, Kiat Ruxrungtham, Srisupalak Singalavanija, Jarungchit Ngamphaiboon
Urticaria is a common skin condition that can compromise quality of life and may affect individual performance at work or school. Remission is common in majority of patients with acute spontaneous urticaria (ASU); however, in chronic cases, less than 50% had remission. Angioedema either alone or with urticaria is associated with a much lower remission rate. Proper investigation and treatment is thus required. This guideline, a joint development of the Dermatological Society of Thailand, the Allergy, Asthma, and Immunology Association of Thailand and the Pediatric Dermatological Society of Thailand, is graded and recommended based on published evidence and expert opinion...
September 2016: Asian Pacific Journal of Allergy and Immunology
Ann M Moormann, Jeffrey A Bailey
Burkitt lymphoma (BL) is >90% EBV-associated when this pediatric cancer is diagnosed in regions heavily burden by endemic Plasmodium falciparum malaria and thus has been geographically classified as endemic BL. The incidence of endemic BL is 10-fold higher compared to BL diagnosed in non-malarious regions of the world. The other forms of BL have been classified as sporadic BL which contain EBV in ∼30% of cases and immunodeficiency BL which occurs in HIV-infected adults with ∼40% of tumors containing EBV...
September 26, 2016: Current Opinion in Virology
W C M Viana, D Lambertz, E S Borges, A M O Neto, K M F T Lambertz, A Amaral
Among the radiotherapeutics' modalities, total body irradiation (TBI) is used as treatment for certain hematological, oncological and immunological diseases. The aim of this study was to evaluate the long-term effects of low-dose TBI on plasma concentration of total protein and albumin using prematurely and undernourished rats as animal model. For this, four groups with 9 animals each were formed: Normal nourished (N); Malnourished (M); Irradiated Normal nourished (IN); Irradiated Malnourished (IM). At the age of 28 days, rats of the IN and IM groups underwent total body gamma irradiation with a source of cobalt-60...
September 20, 2016: Applied Radiation and Isotopes
Eva Hlavackova, Martin Liska, Hana Jicinska, Jiri Navratil, Jiri Litzman
The Fontan operation or total cavopulmonal connection (TCPC) is a palliative surgical correction of rare and complex inborn cardiac malformations that are characterized by univentricular circulation. Protein-losing enteropathy (PLE) develops in 4-13% of patients after the Fontan procedure. Fontan-related PLE leads to secondary combined immunodeficiency marked by hypogammaglobulinemia and predominantly CD4+ lymphocytopenia. Here, we present 3 case reports of patients with secondary immunodeficiency after the Fontan operation...
September 30, 2016: International Archives of Allergy and Immunology
Maximilian Muenchhoff, Emily Adland, Owen Karimanzira, Carol Crowther, Matthew Pace, Anna Csala, Ellen Leitman, Angeline Moonsamy, Callum McGregor, Jacob Hurst, Andreas Groll, Masahiko Mori, Smruti Sinmyee, Christina Thobakgale, Gareth Tudor-Williams, Andrew J Prendergast, Henrik Kloverpris, Julia Roider, Alasdair Leslie, Delane Shingadia, Thea Brits, Samantha Daniels, John Frater, Christian B Willberg, Bruce D Walker, Thumbi Ndung'u, Pieter Jooste, Penny L Moore, Lynn Morris, Philip Goulder
Disease-free infection in HIV-infected adults is associated with human leukocyte antigen-mediated suppression of viremia, whereas in the sooty mangabey and other healthy natural hosts of simian immunodeficiency virus (SIV), viral replication continues unabated. To better understand factors preventing HIV disease, we investigated pediatric infection, where AIDS typically develops more rapidly than in adults. Among 170 nonprogressing antiretroviral therapy-naïve children aged >5 years maintaining normal-for-age CD4 T cell counts, immune activation levels were low despite high viremia (median, 26,000 copies/ml)...
September 28, 2016: Science Translational Medicine
Ann Chahroudi, Guido Silvestri
A subset of HIV-infected children shows an unusually benign course of infection that recapitulates key immunological aspects of the natural SIV infection of sooty mangabeys (Muenchhoff et al.).
September 28, 2016: Science Translational Medicine
Leo Kager, Gevorg Tamamyan, Stefan Bielack
High-grade osteosarcomas are the most common primary malignant tumors of bone. With complete surgical resection and multi-agent chemotherapy up to 70% of patients with high-grade osteosarcomas and localized extremity tumors can become long-term survivors. The prognosis, however, is poor for patients with nonresectable, primary metastatic or relapsed disease. Outcome is essentially unchanged for three decades. Herein, we describe selected novel insights into the genomics, biology and immunology of the disease and discuss selected strategies, which hold promise to overcome the current stagnation in the therapeutic success in childhood osteosarcoma...
September 21, 2016: Future Oncology
Pierre Frange, Naïm Bouazza, Patricia Fassinou, Josiane Warszawski, Stéphane Blanche
INTRODUCTION: Antiretroviral therapy is extremely effective in both children and adults infected with HIV. Treatment indications have rapidly expanded; ideally, with rare exceptions, all infected children should now be treated. AREAS COVERED: The use of antiretroviral drugs in children is based largely on extrapolations from experience with adult patients. Pharmacokinetic studies are required in addition to formal studies, which are difficult to conduct in pediatric situations, extending from birth to adolescence...
September 22, 2016: Expert Review of Anti-infective Therapy
Christopher R Nitkin, Tracey L Bonfield
: : Mesenchymal stem cells (MSCs) represent a potentially revolutionary therapy for a wide variety of pediatric diseases, but the optimal cell-based therapeutics for such diversity have not yet been specified. The published clinical trials for pediatric pulmonary, cardiac, orthopedic, endocrine, neurologic, and hematologic diseases provide evidence that MSCs are indeed efficacious, but the significant heterogeneity in therapeutic approaches between studies raises new questions. The purpose of this review is to stimulate new preclinical and clinical trials to investigate these factors...
September 13, 2016: Stem Cells Translational Medicine
Florin Tuluc, Sergei Spitsin, Nancy B Tustin, Jennifer B Murray, Richard Tustin, Laura A Schankel, Andrew Wiznia, Sharon Nachman, Steven D Douglas
We investigated the effect of combination antiretroviral therapy (cART) on immune recovery, particularly on the percentages of PD-1-positive cells within the major leukocyte subsets. Cryopreserved peripheral blood mononuclear cells and plasma samples collected longitudinally from a subset of 13 children and adolescents (between 9.7 and 18.2 years old) who were enrolled in the International Maternal Pediatric Adolescent AIDS Clinical Trials (IMPAACT) P1066 were used for this study. Immunophenotyping by flow cytometry was performed to determine the effect of raltegravir-containing cART regimen on the distribution of leukocyte populations, on the expression of PD-1 on T cell subpopulations, and on the expression of well-established markers of T cell activation (CD38 and HLA-DR) on CD8 T cells...
October 18, 2016: AIDS Research and Human Retroviruses
A F Wert, D Posa, O Tsilochristou, N Schwerk
For any kind of therapeutic intervention in allergic diseases such as environmental control, pharmacological or immunomodulating treatment including educational programs, children are addressed separately from adults. Health authorities like the Food and Drug Administration (FDA) in the United States of America or the European Medicine Agency (EMA) in Europe request a specific "Pediatric investigational Plan" (PIP) with studies addressing dose-response relationship, safety and efficacy for infants, children, and adolescents...
September 10, 2016: Pediatric Allergy and Immunology
M P Sypek, S I Alexander, L Cantwell, F L Ierino, P Ferrari, A M Walker, J Y Kausman
Kidney paired donation (KPD) programs offer the opportunity to enable living kidney donation when immunological and other barriers prevent safe directed donation. Children are likely to require multiple transplants during their lifetime; therefore, high-level histocompatibility and organ quality matching are key priorities. Details are given for a cohort of seven pediatric renal transplantations performed through the Australian Kidney Exchange (AKX), including barriers to alternative transplantation and outcomes after KPD...
September 6, 2016: American Journal of Transplantation
Andrew Mantulak, David B Nicholas
Advances in the surgical and immunological aspects of pediatric kidney transplantation have resulted in significant improvements in long-term outcome and survival rates. However, there continues to be a negative impact reported on overall family functioning despite the reported good health and quality of life for the transplanted child. This research utilizes a phenomenological approach to examine the lived experiences of seven mothers of children who had undergone kidney transplantation. Findings of the study illuminate that the experience of mothering in the context of pediatric kidney transplantation is reflected in (1) the significance of relationships to the experience of self; (2) the lived experience of time; and (3) opportunities for growth and personal development...
September 2016: Social Work in Health Care
Giuseppe di Mauro, Roberto Bernardini, Salvatore Barberi, Annalisa Capuano, Antonio Correra, Gian Luigi De' Angelis, Iride Dello Iacono, Maurizio de Martino, Daniele Ghiglioni, Dora Di Mauro, Marcello Giovannini, Massimo Landi, Gian Luigi Marseglia, Alberto Martelli, Vito Leonardo Miniello, Diego Peroni, Lucilla Ricottini Maria Giuseppa Sullo, Luigi Terracciano, Cristina Vascone, Elvira Verduci, Maria Carmen Verga, Elena Chiappini
BACKGROUND: Allergic sensitization in children and allergic diseases arising therefrom are increasing for decades. Several interventions, functional foods, pro- and prebiotics, vitamins are proposed for the prevention of allergies and they can't be uncritically adopted. OBJECTIVE: This Consensus document was developed by the Italian Society of Preventive and Social Paediatrics and the Italian Society of Paediatric Allergy and Immunology. The aim is to provide updated recommendations regarding allergy prevention in children...
2016: World Allergy Organization Journal
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