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https://www.readbyqxmd.com/read/28223455/acute-fetal-demise-with-first-trimester-maternal-infection-resulting-from-listeria-monocytogenes-in-a-nonhuman-primate-model
#1
Bryce Wolfe, Gregory J Wiepz, Michele Schotzko, Gennadiy I Bondarenko, Maureen Durning, Heather A Simmons, Andres Mejia, Nancy G Faith, Emmanuel Sampene, Marulasiddappa Suresh, Sophia Kathariou, Charles J Czuprynski, Thaddeus G Golos
Infection with Listeria monocytogenes during pregnancy is associated with miscarriage, preterm birth, and neonatal complications, including sepsis and meningitis. While the risk of these conditions is thought to be greatest during the third trimester of pregnancy, the determinants of fetoplacental susceptibility to infection, the contribution of gestational age, and the in vivo progression of disease at the maternal-fetal interface are poorly understood. We developed a nonhuman primate model of listeriosis to better understand antecedents of adverse pregnancy outcomes in early pregnancy...
February 21, 2017: MBio
https://www.readbyqxmd.com/read/28203327/a-rapid-screening-test-on-dried-blood-for-the-neonatal-diagnosis-of-tyrosinemia-type-i
#2
Farahnaz Bodaghkhan, Bita Geramizadeh, Abbas Abdollah Rajeh, Mahmoud Haghighat, Mohsen Dehghani, Naser Honar, Mojgan Zahmatkeshan, Mohammad-Hadi Imanieh
BACKGROUND: Tyrosinemia is an inherited metabolic disorder characterized by elevated levels of tyrosine and its metabolites in plasma. Without treatment, the disease will progress to hepatic and renal failure, so that without liver transplantation will cause death in less than 10 years of age. So, early diagnosis and treatment can be life saving and crucial. It means that with early treatment starting in the neonatal period, the patient can have normal life with very few restrictions in diets containing tyrosine and phenylalanine...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28202614/virus-specific-cd8-t-cells-infiltrate-melanoma-lesions-and-retain-function-independently-of-pd-1-expression
#3
Dan A Erkes, Corinne J Smith, Nicole A Wilski, Sofia Caldeira-Dantas, Toktam Mohgbeli, Christopher M Snyder
It is well known that CD8(+) tumor-infiltrating lymphocytes (TILs) are correlated with positive prognoses in cancer patients and are used to determine the efficacy of immune therapies. Although it is generally assumed that CD8(+) TILs will be tumor-associated Ag (TAA) specific, it is unknown whether CD8(+) T cells with specificity for common pathogens also infiltrate tumors. If so, the presence of these T cells could alter the interpretation of prognostic and diagnostic TIL assays. We compared TAA-specific and virus-specific CD8(+) T cells in the same tumors using murine CMV, a herpesvirus that causes a persistent/latent infection, and vaccinia virus, a poxvirus that is cleared by the host...
February 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28170133/optimal-strategies-for-the-diagnosis-of-community-onset-diarrhea-in-solid-organ-transplant-recipients-less-is-more
#4
Sonya A Trinh, Ignacio A Echenique, Sudhir Penugonda, Michael P Angarone
BACKGROUND: Diarrhea, a common complication after solid organ transplant (SOT), is associated with allograft failure and death. No evidence-based guidelines exist for the evaluation of diarrhea in SOT recipients. We performed a cost-analysis to derive a testing algorithm for the diagnosis of community-onset diarrhea that minimizes costs without compromising diagnostic yields. DESIGN: A cost-analysis was performed on a retrospective cohort of 422 SOT admissions for community-onset diarrhea over an 18-month period...
February 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28165158/development-and-evaluation-of-a-quantitative-assay-detecting-cytomegalovirus-transcripts-for-preemptive-therapy-in-allogeneic-hematopoietic-stem-cell-transplant-recipients
#5
Keiko Ishii, Yasushi Onishi, Namiko Miyamura, Noriko Fukuhara, Kenichi Ishizawa, Mutsumi Nakanishi, Satoru Ohnaka, Tomomitsu Miyasaka, Emi Kanno, Kazuyoshi Kawakami, Hideo Harigae, Mitsuo Kaku
Successful preemptive therapy for cytomegalovirus (CMV) infection after hematopoietic stem cell transplantation (HSCT) depends on the availability of a rapid and sensitive assay to guide early treatment. Currently, the antigenemia assay and the quantitative real-time PCR (qPCR) assay are widely used for this purpose, but they have distinctive concerns. This study aimed to develop and evaluate a novel CMV diagnostic test based on transcription-reverse transcription concerted reaction (TRC), an RNA-detecting technology...
February 6, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28150409/bizarre-cell-dysplasia-of-the-cervix
#6
Ondrej Ondič, Radoslav Ferko, Jana Kašpírková, Marián Švajdler, Boris Rýchly, Peter Talarčík, Jiří Bouda, Michal Michal
AIM: The aim of this study was the characterization of a new subtype of high-grade cervical squamous intraepithelial lesion (HSIL) with enlarged cells containing bizarre nuclei: so-called bizarre cell dysplasia (BCD). METHODS: A total of 29 cervical cone biopsy samples of this type of dysplasia were studied. Multi-target polymerase chain reaction and in situ hybridization human papillomavirus (HPV) detection was performed in all cases. BCD was defined as a subtype of HSIL characterized by the presence of large dysplastic cells with abnormal, large pleomorphic nuclei or multinucleation causing nucleomegaly...
February 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28147377/case-report-acute-flair-of-ulcerative-colitis-during-pregnancy-is-still-a-major-problem
#7
Marijana Protic, Srdjan Markovic, Dino Tarabar
Although severe flare of ulcerative colitis (UC) is uncommon, it significantly increases the risk of preterm delivery, low birth weight and other adverse fetal outcomes. It is critical to optimize aggressive medical treatment with both mother and fetal health. Here, we present a case of a 30-year-old woman with a severe flare of UC at the 16th gestational week. The diagnosis of extensive UC was established 8 years ago. From the time she was diagnosed, she had 5 moderate flares successfully treated with oral and topical mesalamine...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/28130404/tissue-reservoirs-of-antiviral-t-cell-immunity-in-persistent-human-cmv-infection
#8
Claire L Gordon, Michelle Miron, Joseph J C Thome, Nobuhide Matsuoka, Joshua Weiner, Michael A Rak, Suzu Igarashi, Tomer Granot, Harvey Lerner, Felicia Goodrum, Donna L Farber
T cell responses to viruses are initiated and maintained in tissue sites; however, knowledge of human antiviral T cells is largely derived from blood. Cytomegalovirus (CMV) persists in most humans, requires T cell immunity to control, yet tissue immune responses remain undefined. Here, we investigated human CMV-specific T cells, virus persistence and CMV-associated T cell homeostasis in blood, lymphoid, mucosal and secretory tissues of 44 CMV seropositive and 28 seronegative donors. CMV-specific T cells were maintained in distinct distribution patterns, highest in blood, bone marrow (BM), or lymph nodes (LN), with the frequency and function in blood distinct from tissues...
January 27, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28128088/gestational-pityriasis-rosea-suggestions-for-approaching-affected-pregnant-women
#9
Alexandra Monastirli, Efstathia Pasmatzi, George Badavanis, Dionysios Tsambaos
Dear Editor, Pityriasis rosea is a common, acute, and self-limiting dermatosis, which is associated with the endogenous systemic reactivation of human herpesvirus (HHV)-6 and/or HHV-7 (1). It predominantly affects individuals of both sexes in their second or third decade of life and is clinically characterized by the occurrence of an initial erythematosquamous plaque followed by the appearance of disseminated similar but smaller lesions one or two weeks later. Several patients develop systemic symptoms such as nausea, anorexia, malaise, headache, fever, arthralgia, and lymphadenopathy that may precede or accompany the eruption; the latter follows the cleavage lines of the trunk creating the configuration of a Christmas tree and spontaneously resolves within 4 to 8 weeks...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28121712/elevated-cytomegalovirus-igg-antibody-levels-are-associated-with-hiv-1-disease-progression-and-immune-activation
#10
Eshan U Patel, Sara Gianella, Kevin Newell, Aaron A R Tobian, Allison R Kirkpatrick, Fredrick Nalugoda, Mary K Grabowski, Ronald H Gray, David Serwadda, Thomas C Quinn, Andrew D Redd, Steven J Reynolds
OBJECTIVE: To assess the association between CMV IgG antibody levels, HIV disease progression, and immune activation in sub-Saharan Africa. DESIGN: A prospective cohort study was conducted among women enrolled in a trial that was designed to determine the effect of acyclovir on HIV disease progression in Rakai, Uganda. METHODS: The primary endpoints were progression to a CD4 T-cell count<250 cells/μL, non-traumatic death, or initiation of ART...
January 24, 2017: AIDS
https://www.readbyqxmd.com/read/28121161/regulatory-t-cell-effect-on-cd8-t-cell-responses-to-human-herpesvirus-8-infection-and-development-of-kaposi-s-sarcoma
#11
Lauren M Lepone, Giovanna Rappocciolo, Paolo A Piazza, Diana M Campbell, Frank Jenkins, Charles Rinaldo
We assessed CD8+ T cell reactivity to human herpesvirus 8 (HHV-8; Kaposi's sarcoma-associated herpesvirus) and the role of CD4+CD25hiFoxP3+ regulatory T cells (Treg) in HHV-8 and HIV co-infected participants of the Multicenter AIDS Cohort Study who did or did not develop Kaposi's sarcoma (KS). There were similarly low CD8+ T cell interferon γ responses to MHC class I-restricted epitopes of HHV-8 lytic and latent proteins over 5.7 years prior to KS in participants who developed KS compared to those that did not...
January 25, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28116961/primary-versus-non-primary-maternal-cytomegalovirus-infection-as-a-cause-of-symptomatic-congenital-infection-register-based-study-from-finland
#12
Laura Puhakka, Marjo Renko, Merja Helminen, Ville Peltola, Tarja Heiskanen-Kosma, Maija Lappalainen, Heljä-Marja Surcel, Tuula Lönnqvist, Harri Saxen
BACKGROUND: Both primary and non-primary maternal cytomegalovirus (CMV) infection during pregnancy can lead to vertical transmission. We evaluated the proportion of maternal primary/non-primary infections among 26 babies with symptomatic congenital CMV infection born in Finland from 2000 to 2012. METHODS: We executed a database search on hospital records from all five university hospitals in Finland to identify infants with congenital CMV infection. The preserved maternal serum samples drawn at the end of the first trimester were analysed for CMV antibodies...
January 24, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28106085/the-%C3%AE-globin-replicator-greatly-enhances-the-potential-of-s-mar-based-episomal-vectors-for-gene-transfer-into-human-haematopoietic-progenitor-cells
#13
Eleana F Stavrou, Vassileios M Lazaris, Aristeidis Giannakopoulos, Eirini Papapetrou, Alexandros Spyridonidis, Nikolas C Zoumbos, Antonis Gkountis, Aglaia Athanassiadou
Specific human chromosomal elements enhance the performance of episomal gene-transfer vectors. S/MAR-based episomal vector pEPI-eGFP transfects CD34(+) haematopoietic cells, but only transiently. To address this issue we reinforced (1) transgene transcription by replacing the CMV promoter driving eGFP with the EF1/HTLV or SFFV promoters to produce vectors pEPI-EF1/HTLV and pEPI-SFFV, respectively; and (2) plasmid replication by inserting the replication-Initiation Region (IR) from the β-globin locus into vector pEPI-SFFV to produce vector pEP-IR...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105959/expression-of-an-extracellular-ribonuclease-gene-increases-resistance-to-cucumber-mosaic-virus-in-tobacco
#14
Teppei Sugawara, Ekaterina A Trifonova, Alex V Kochetov, Yoshinori Kanayama
BACKGROUND: The apoplast plays an important role in plant defense against pathogens. Some extracellular PR-4 proteins possess ribonuclease activity and may directly inhibit the growth of pathogenic fungi. It is likely that extracellular RNases can also protect plants against some viruses with RNA genomes. However, many plant RNases are multifunctional and the direct link between their ribonucleolytic activity and antiviral defense still needs to be clarified. In this study, we evaluated the resistance of Nicotiana tabacum plants expressing a non-plant single-strand-specific extracellular RNase against Cucumber mosaic virus...
November 16, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/28095288/cytomegalovirus-immunoglobulin-g-avidity-index-among-blood-donors-in-alexandria-egypt
#15
Aleya Abdel Gawad, Mona Hashish, Amani Abaza, Aisha El-Kayal
BACKGROUND: Transfusion transmitted diseases (TTD) are a major challenge to transfusion services all over the world. Cytomegalovirus (CMV) is considered one of the main viruses associated with blood transfusion. As CMV screening is not included in routine screening tests done for donated blood in blood banks in Egypt, the detection of CMV Immunoglobulin G (IgG) avidity needs to be tested for being a useful tool to diagnose recent infection among blood donors. The aim of this work was to study CMV IgG avidity index (AI) among blood donors...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28092353/non-myeloablative-conditioning-for-second-hematopoietic-cell-transplantation-for-graft-failure-in-patients-with-non-malignant-disorders-a-prospective-study-and-review-of-the-literature
#16
K Mallhi, P J Orchard, W P Miller, Q Cao, J Tolar, T C Lund
Allogeneic hematopoietic cell transplantation (HCT) effectively treats several non-malignant disorders such as selected lysosomal disorders, cerebral adrenoleukodystrophy and hemoglobinopathies. However, rates of graft failure (GF) in non-malignant populations exceed those of patients with malignant indications for HCT. Salvage conditioning regimens and outcomes for second HCT for GF vary immensely in the literature. We report 17 consecutive pediatric patients with non-malignant disorders who underwent a second allogenic HCT for GF using a non-myeloablative, low-dose busulfan-based regimen...
January 16, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28088953/-research-of-mhla-g-and-the-receptor-expression-with-kidney-rejection-and-cmv-active-infection-following-kidney-transplantation
#17
L L Bi, Y Gao, Y J Sun, X R Kong, X Y He, X H Ma, W H Zhang, L Xiao, B Y Shi
Objective: To study the expression of membrane HLA-G (mHLA-G) and the receptor immunoglobulin-like transcript 2(ILT2) on lymphocyte and find their association with rejection and cytomegalovirus (CMV) infection after renal transplantation. Methods: A total of 88 cases of renal transplant recipients for the first time from February 2014 to February 2016 were studied in this work. Recipients can be divided into rejection group (n=12) and stable renal function group (n=41) according to whether rejection occurred...
January 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28087817/t-cell-redeployment-and-intracellular-cytokine-expression-following-exercise-effects-of-exercise-intensity-and-cytomegalovirus-infection
#18
Emily C LaVoy, Maryam Hussain, Justin Reed, Hawley Kunz, Mira Pistillo, Austin B Bigley, Richard J Simpson
The magnitude of lymphocytosis following exercise is directly related to exercise intensity. Infection with cytomegalovirus (CMV) also augments lymphocytosis after exercise. It is not known if the enhanced T-cell response to exercise due to CMV depends on exercise intensity. Furthermore, exercise-induced changes in T-cell expression of type I and type II cytokines are thought to be intensity dependent, but direct comparisons are lacking. The aim of this experiment was to determine if CMV affects the exercise-induced redistribution of T-cell subsets at varying intensities, and determine the effect of exercise intensity on CD8(+) T-cell cytokine expression...
January 2017: Physiological Reports
https://www.readbyqxmd.com/read/28079113/congenital-hearing-loss
#19
REVIEW
Anna M H Korver, Richard J H Smith, Guy Van Camp, Mark R Schleiss, Maria A K Bitner-Glindzicz, Lawrence R Lustig, Shin-Ichi Usami, An N Boudewyns
Congenital hearing loss (hearing loss that is present at birth) is one of the most prevalent chronic conditions in children. In the majority of developed countries, neonatal hearing screening programmes enable early detection; early intervention will prevent delays in speech and language development and has long-lasting beneficial effects on social and emotional development and quality of life. A diagnosis of hearing loss is usually followed by a search for an underlying aetiology. Congenital hearing loss might be attributed to environmental and prenatal factors, which prevail in low-income settings; congenital infections, particularly cytomegalovirus infection, are also a common risk factor for hearing loss...
12, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28077632/phyloepidemiological-analysis-reveals-that-viral-divergence-led-to-the-paucity-of-sivmus-gsn-mon-infections-in-wild-populations
#20
Fabian Schmidt, Florian Liegeois, Edward J D Greenwood, Matthew LeBreton, James Lester, Luc Deleplancque, Martine Peeters, Avelin Aghokeng, Ubald Tamoufe, Joseph L D Diffo, Jean M Takuo, Nathan D Wolfe, Eric Leroy, François Rouet, Jonathan L Heeney
: Human immunodeficiency virus subtype-1 (HIV-1) is the result of cross-species transmission of simian immunodeficiency virus from chimpanzees (SIVcpz). SIVcpz is a chimeric virus which shares common ancestors with viruses infecting red capped mangabeys and a subset of guenon species. The epidemiology of SIV infection in hominoids is characterized by low prevalence and uneven geographical distribution. Surveys in Cameroon indicated that two closely related members of the guenon species subset, mustached guenons and greater spot-nosed guenons, infected with SIVmus and SIVgsn respectively, have also low rates of SIV infections in their populations...
January 11, 2017: Journal of Virology
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