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https://www.readbyqxmd.com/read/29789000/spontaneous-splenic-rupture-complicating-primary-varicella-zoster-infection-a-case-report
#1
Aarthy Uthayakumar, David Harrington
BACKGROUND: Primary varicella zoster virus (VZV) infection is a common illness, predominantly affecting children. Its course is typically benign, although severe complications have been described. Splenic rupture is an extremely rare and potentially fatal complication of primary VZV infection, with only a handful of cases reported in the literature. CASE PRESENTATION: A 32-year-old Romanian man with no significant past medical history, presented with a 2 day history of sudden onset, worsening generalised abdominal pain and a 1 day history of vomiting...
May 22, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29788447/varicella-zoster-virus-induces-nuclear-translocation-of-the-neurokinin-1-receptor-promoting-lamellipodia-formation-and-viral-spread-in-spinal-astrocytes
#2
Andrew N Bubak, Christina N Como, Anna M Blackmon, Seth Frietze, Teresa Mescher, Dallas Jones, Randall J Cohrs, Petr Paucek, Nicholas L Baird, Maria A Nagel
Background: Varicella zoster virus (VZV) can present as a myelopathy with spinal astrocyte infection. Recent studies support a role for the neurokinin-1 receptor (NK-1R) in virus infections, as well as for cytoskeletal alterations that may promote viral spread. Thus, we examined the role of NK-1R in VZV-infected primary human spinal astrocytes (HA-sps) to shed light on the pathogenesis of VZV myelopathy. Methods: Mock- and VZV-infected HA-sps were examined for substance P (subP) production, NK-1R localization, morphological changes and viral spread in the presence or absence of NK-1R antagonists, aprepitant and rolapitant...
May 19, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29785316/a-pediatric-case-of-relapsing-remitting-multiple-sclerosis-onset-following-varicella-zoster-ophthalmicus-with-optic-neuritis
#3
Naoko Shiba, Yuji Inaba, Mitsuo Motobayashi, Makoto Nishioka, Yoichiro Kawasaki, Shunsuke Noda, Hiroki Matsuura, Norimoto Kobayashi, Takafumi Matsuoka, Akinori Nakamura, Yozo Nakazawa
Some epidemiological studies have implied a pathogenetic association between varicella zoster virus (VZV) and multiple sclerosis (MS); this, however, remains controversial. The present report describes a case involving an immunocompetent 10-year-old girl who developed relapsing-remitting MS following the prolonged reactivation of VZV inside the first branch of the trigeminal nerve, exhibiting herpes zoster ophthalmicus with severe optic neuritis. Symptoms related to herpes zoster ophthalmicus and MS appeared consecutively in the 10-week period after the appearance of vesicles...
2018: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/29781861/clinico-pathological-study-of-4-cases-of-pseudoherpetic-grover-disease-the-same-as-vesicular-grover-disease
#4
Tania M Capusan, María Herrero-Moyano, Javier Fraga, Mar Llamas-Velasco
INTRODUCTION: Grover disease (GD) was described with 4 histopathological patterns, but later wide histopathological studies found additional ones including vesicular GD. From 2014, 2 new patterns, GD with epidermolytic hyperkeratosis and pseudoherpetic GD, have been proposed. OBJECTIVES: The authors present 4 cases of pseudoherpetic GD and review the 6 previously published cases to better characterize this variant clinically and histopathologically. RESULTS: Half of the patients were men...
June 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29774869/genetic-epidemiology-and-risk-factors-for-brain-tumors
#5
Xuejun Li, Hang Cao, Yanhong Liu
This report summarized current knowledge and findings relevant to environmental and genetic risk factors in brain tumors, with a particular focus on glioma. To date, the established risk factors for brain tumors are family history and ionizing radiation exposure; whereas there is an inverse association between tumors and other factors such as history of allergies, atopic conditions, chickenpox, and varicella zoster virus infection. To identify inherited genetic variants impacting susceptibility of brain tumors, large scale familial linkage-scan pedigree analysis, population-based candidate genes, and genome-wide association study were performed...
April 28, 2018: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/29766472/epidemiology-management-and-outcome-of-varicella-in-pregnancy-a-20-year-experience-at-the-tuscany-reference-centre-for-infectious-diseases-in-pregnancy
#6
Michele Trotta, Beatrice Borchi, Alessandra Niccolai, Elisabetta Venturini, Susanna Giaché, Gaetana Sterrantino, Maria Grazia Colao, Gian Maria Rossolini, Alessandro Bartoloni, Lorenzo Zammarchi
Data from 215 pregnant women exposed to varicella and 276 with varicella observed at the Tuscany Reference Center for Infectious Diseases in Pregnancy, Florence, Italy, in the period 1997-2016 were retrospectively collected. The risk of developing varicella was lower in exposed women who received varicella zoster immunoglobulin compared with those who did not receive it [42% (21 of 50) vs 72% (13 of 18); p = 0.0263]. Typical congenital varicella syndrome was observed in 1.56% of fetuses/neonates born from pregnant women with varicella...
May 15, 2018: Infection
https://www.readbyqxmd.com/read/29758495/a-rapid-magnetic-particle-based-enzyme-immunoassay-for-human-cytomegalovirus-glycoprotein-b-quantification
#7
F Pires, M Julia Arcos-Martinez, A Cristina Dias-Cabral, Juan C Vidal, Juan R Castillo
Human cytomegalovirus (HCMV) is a herpes virus that can cause severe infections. Still, the available methods for its diagnostic have the main disadvantage of requiring long time to be performed. In this work, a simple magnetic particle-based enzyme immunoassay (mpEIA) for the quantification of glycoprotein B of Human cytomegalovirus (gB-HCMV) in urine samples is proposed. The immunosensor scheme is based on the analyte protein gB-HCMV sandwiched between a primary monoclonal antibody, (MBs-PrG-mAb1), and a secondary anti-gB-HCMV antibody labelled with Horseradish peroxidase (Ab2-HRP) to allow spectrophotometric detection...
April 17, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29754069/high-resolution-vessel-wall-mri-and-vasculopathy-related-to-herpes-zoster-ophthalmicus
#8
Jae W Song, Sam Ojeda, Javier M Romero
Varicella zoster virus is a common viral infection with over 50% of patients over the age of 80 years infected with the virus. Following reactivation, some patients succumb to complications of VZV reactivation with neurologic and optic pathway pathology such as VZV vasculopathy resulting in transient ischemic attacks, strokes, aneurysms, as well as optic neuritis. We show that high resolution vessel wall magnetic resonance imaging can aid in the diagnosis of this condition with circumferential wall thickening and enhancement of the infected vessels...
May 3, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29750672/infusion-of-cytotoxic-t-lymphocytes-for-the-treatment-of-viral-infections-in-hematopoetic-stem-cell-transplant-patients
#9
Katherine A Baugh, Ifigeneia Tzannou, Ann M Leen
PURPOSE OF REVIEW: Allogeneic hematopoietic stem cell transplantation has proven curative for a range of malignant and nonmalignant disorders. However, the clinical success of this therapy is marred by the morbidity associated with viral infections, which are frequent (cytomegalovirus 15.6-28%, adenovirus 3-21%, BK virus 18.5-20.7%) post-transplant. These infections occur as a consequence of transplant conditioning regimens designed to eliminate not only malignant cells but also host immune cells that might interfere with stem cell engraftment...
May 9, 2018: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/29743372/-breadth-and-functionality-of-varicella-zoster-virus-glycoprotein-specific-antibodies-identified-after-zostavax-vaccination-in-humans
#10
Nicole L Sullivan, Morgan A Reuter-Monslow, Janet Sei, Eberhard Durr, Carl W Davis, Cathy Chang, Megan McCausland, Andreas Wieland, David Krah, Nadine Rouphael, Aneesh K Mehta, Mark J Mulligan, Bali Pulendran, Rafi Ahmed, Kalpit A Vora
Herpes zoster (HZ/shingles) is the clinical manifestation of varicella zoster virus (VZV) reactivation. HZ typically develops as people age due to decreased cell-mediated immunity. However, the importance of antibodies for immunity against HZ prevention remains to be understood. The goal of this study was to examine the breadth and functionality of VZV-specific antibodies after vaccination with a live attenuated HZ vaccine (Zostavax). Direct enumeration of VZV-specific antibody secreting cells (ASC) via ELISPOT showed that Zostavax can induce both IgG and IgA ASCs seven days after vaccination, but not IgM ASCs...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29738266/early-treatment-was-life-saving-in-varicella-pneumonia-of-an-immunocompetent-adult
#11
Neslihan Çelik, Onur Çelik, Onur Ünal
Chickenpox, an infection of childhood with vesicular skin rash, is caused by varicella-zoster virus (VZV). Although the infection is rare in adults, it can cause serious complications Varicella pneumonia is the most encountered complication. In this report, a VZV pneumonia case in a previously healthy adult is presented. The patient was treated with early intravenous acyclovir and both clinical and radiographic recovery has been observed.
May 1, 2018: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29733991/varicella-zoster-virus-infection-and-osteomyelitis-of-the-skull-a-case-report
#12
Taylor Sommer, Michael Karsy, Meghan J Driscoll, Randy L Jensen
BACKGROUND: Varicella zoster virus (VZV) is a common herpesvirus infection that can result in acute varicella/chickenpox as well as delayed activation in herpes zoster/shingles. Ramsay-Hunt syndrome is a rare presentation of VZV reactivation, involving 1% of cases and resulting in lesion formation along the 7th cranial nerve distribution. We report the first case of a patient who presented with acute calvarial osteomyelitis after VZV reactivation and Propionibacterium acnes suprainfection...
May 4, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29731177/administrative-data-to-explore-the-role-of-family-history-as-a-risk-factor-for-herpes-zoster
#13
Rafael Harpaz, Rebecca M Dahl
We used administrative data to study the impact of family history on the risk of herpes zoster (HZ). Our HZ cases and our HZ family history were both ascertained on the basis of medically attended diagnoses, without reliance on self-report or recall bias. Family history was associated with HZ risk among both siblings and parents. The strength of the association differed when the index child was latently infected with vaccine-strain vs wild-type varicella zoster virus.
May 3, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29730641/peptalk2-results-of-a-pilot-randomised-controlled-trial-to-compare-vzig-and-aciclovir-as-postexposure-prophylaxis-pep-against-chickenpox-in-children-with-cancer
#14
Jessica Bate, Stephen Baker, Judith Breuer, Julia C Chisholm, Juliet Gray, Sophie Hambleton, Aimee Houlton, Mark Jit, Stephen Lowis, Guy Makin, Catherine O'Sullivan, Soonie R Patel, Robert Phillips, Neil Ransinghe, Mary Elizabeth Ramsay, Roderick Skinner, Keith Wheatley, Paul T Heath
OBJECTIVE: To determine the likely rate of patient randomisation and to facilitate sample size calculation for a full-scale phase III trial of varicella zoster immunoglobulin (VZIG) and aciclovir as postexposure prophylaxis against chickenpox in children with cancer. DESIGN: Multicentre pilot randomised controlled trial of VZIG and oral aciclovir. SETTING: England, UK. PATIENTS: Children under 16 years of age with a diagnosis of cancer: currently or within 6 months of receiving cancer treatment and with negative varicella zoster virus (VZV) serostatus at diagnosis or within the last 3 months...
May 5, 2018: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29728610/mutations-in-rna-polymerase-iii-genes-and-defective-dna-sensing-in-adults-with-varicella-zoster-virus-cns-infection
#15
Madalina E Carter-Timofte, Anders F Hansen, Mette Christiansen, Søren R Paludan, Trine H Mogensen
Recently, deficiency in the cytosolic DNA sensor RNA Polymerase III was described in children with severe primary varicella-zoster virus (VZV) infection in the CNS and lungs. In the present study we examined adult patients with VZV CNS infection caused by viral reactivation. By whole exome sequencing we identified mutations in POL III genes in two of eight patients. These mutations were located in the coding regions of the subunits POLR3A and POLR3E. In functional assays, we found impaired expression of antiviral and inflammatory cytokines in response to the POL III agonist Poly(dA:dT) as well as increased viral replication in patient cells compared to controls...
May 1, 2018: Genes and Immunity
https://www.readbyqxmd.com/read/29720076/paediatric-active-enhanced-disease-surveillance-paeds-annual-report-2015-prospective-hospital-based-surveillance-for-serious-paediatric-conditions
#16
Jocelynne E McRae, Helen E Quinn, Kristine Macartney
Introduction: The Paediatric Active Enhanced Disease Surveillance (PAEDS) network is a hospital-based active surveillance system employing prospective case ascertainment for selected serious childhood conditions, particularly vaccine preventable diseases and potential adverse events following immunisation (AEFI). PAEDS data is used to better understand these conditions, inform policy and practice under the National Immunisation Program, and enable rapid public health responses for certain conditions of public health importance...
September 1, 2017: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/29719831/a-30-year-old-man-with-hiv-fever-and-a-rash
#17
Radhika Shah, Saami Khalifian, Lyn Duncan, Daniela Kroshinsky, Bonnie Mackool
Patients who present with papular rashes have a wide differential diagnosis particularly in the setting of immune compromise. A 30-year-old male diagnosed with HIV since 2009, never on antiretroviral therapy, with a nadir CD4 count of 333 cells/mm3 and a current viral load of 44,300 copies/mL, presented with a diffuse monomorphic papular eruption that began on his trunk and extremities and subsequently spread to the penis and scrotum, sparing the distal acral sites. A thorough infectious workup revealed a positive rapid plasma reagin (RPR) and varicella IgM and IgG antibodies...
January 2018: Dermatopathology (Basel, Switzerland)
https://www.readbyqxmd.com/read/29717292/outbreak-investigation-following-the-2015-earthquake-disaster-in-nepal
#18
Geeta Shakya, Baburam Marasini, Khem Bahadur Karki, Bishnu Prasad Upadhaya, Jyoti Acharya, Shailaja Adhikari, Rosham Manjhi, Laxman Maharjan, Lilee Shrestha, Kamal Ranabhat, Sujan Babu Marahatta, Bikal Shrestha, Meghnath Dhimal
BACKGROUND: Infectious disease outbreaks following natural disasters are reported in literature. Outbreaks were documented following natural disasters in many countries including Haiti. Such possibility following 2015 Nepal earthquake was a public health concern. Risk factors needed evaluation by post-disaster outbreak investigation. Hence, present study was undertaken to investigate potentials for such outbreak and to generate evidence for public health intervention. METHODS: The study was conducted between April - May, 2015, with the cooperation of National Public Health Laboratory, Epidemiology and Disease Control Division, Nepal Health Research Council and the Chinese team...
March 13, 2018: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/29710022/-a-case-of-bilateral-cervical-internal-carotid-artery-dissection-following-herpes-zoster-of-the-trigeminal-nerve
#19
Mariko Iwasa, Yohei Mima, Aya Ito, Yuko Abe, Naoko Ueda, Ryoichi Otsubo
A 62 year-old man, who was taking prednisolone for nephrotic syndrome, was diagnosed with herpes zoster of the trigeminal nerve and treated with oral valacyclovir. One month later, he reported pain from the right side of the head and vomiting. MRI revealed an acute infarction in the right frontal lobe and dissection of the internal carotid artery of the right cervix. Trauma or other potential triggers were not observed. In consideration of the preceding condition of varicella zoster virus infection, acyclovir was administered in addition to unfractionated heparin, but an intramural hematoma emerged in the left internal carotid artery...
April 28, 2018: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/29709039/varicella-zoster-virus-productively-infects-human-natural-killer-cells-and-manipulates-phenotype
#20
Tessa Mollie Campbell, Brian Patrick McSharry, Megan Steain, Thomas Myles Ashhurst, Barry Slobedman, Allison Abendroth
Varicella zoster virus (VZV) is a ubiquitous human alphaherpesvirus, responsible for varicella upon primary infection and herpes zoster following reactivation from latency. To establish lifelong infection, VZV employs strategies to evade and manipulate the immune system to its advantage in disseminating virus. As innate lymphocytes, natural killer (NK) cells are part of the early immune response to infection, and have been implicated in controlling VZV infection in patients. Understanding of how VZV directly interacts with NK cells, however, has not been investigated in detail...
April 2018: PLoS Pathogens
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