51,573 results match your criteria herpes simplex


Il4ra-independent vaginal eosinophil accumulation following helminth infection exacerbates epithelial ulcerative pathology of HSV-2 infection.

Cell Host Microbe 2021 Apr;29(4):579-593.e5

Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Disease and Molecular Medicine (IDM), Department of Pathology, Division of Immunology, Faculty of Health Science, University of Cape Town, Cape Town 7925, South Africa; Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), UMR 7355 CNRS-University of Orléans, 45000 Orléans, France; Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK. Electronic address:

How helminths influence the pathogenesis of sexually transmitted viral infections is not comprehensively understood. Here, we show that an acute helminth infection (Nippostrongylus brasiliensis [Nb]) induced a type 2 immune profile in the female genital tract (FGT). This leads to heightened epithelial ulceration and pathology in subsequent herpes simplex virus (HSV)-2 infection. Read More

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Primary Central Nervous System Vasculitis as an Unusual Cause of Intracerebral Hemorrhage: A Case Report.

Cureus 2021 Mar 12;13(3):e13847. Epub 2021 Mar 12.

Internal Medicine/Nephrology, McLaren Health Care, Flint/Michigan State University, Flint, USA.

A 64-year-old male with a history of transverse myelitis presented to the hospital with a decreased level of consciousness of one day's duration. CT of the head revealed intracranial hemorrhage measuring 2 x 1.2 cm in the right temporal lobe and multiple small hemorrhages in the left hemisphere, suggestive of vasculitis. Read More

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Herpes Simplex Virus Type 1 Co-Infection Modifies Adeno-Associated Virus Genome End Recombination.

J Virol 2021 Apr 14. Epub 2021 Apr 14.

Institute of Virology, University of Zürich, 8057 Zurich, Switzerland

Wildtype adeno-associated virus (AAV) can only replicate in the presence of helper factors, which can be provided by co-infecting helper viruses such as adenoviruses and herpes viruses. The AAV genome consists of a linear, single-stranded DNA (ssDNA), which is converted into different molecular structures within the host cell. Using high throughput sequencing we found that herpes simplex virus type 1 (HSV-1) co-infection leads to a shift in the type of AAV genome end recombination. Read More

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Emergence of varicella-zoster virus resistance to acyclovir: epidemiology, prevention, and treatment.

Expert Rev Anti Infect Ther 2021 Apr 14. Epub 2021 Apr 14.

Department of Microbiology, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa 920-1180, Japan.

Introduction: Acyclovir has led to the development of successful systemic therapy for herpes simplex virus and varicella-zoster virus (VZV) infection, and the use of valacyclovir and famciclovir has improved treatment. Additionally, the use of a helicase-primase (HP) inhibitor (HPI), amenamevir, is changing the treatment of herpes zoster (HZ).

Area Covered: VZV infection is prevented by vaccines and is treated with antiviral agents. Read More

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Amyloid-β: A double agent in Alzheimer's disease?

Authors:
Hao Yu Jie Wu

Biomed Pharmacother 2021 Apr 10;139:111575. Epub 2021 Apr 10.

Department of Laboratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China. Electronic address:

Amyloid-β (Aβ) accumulation is one of the cardinal pathological hallmarks of Alzheimer's disease and plays an important role in its pathogenesis. Although the neurotoxic effects of Aβ has been extensively studied, recent studies have revealed that it may also have protective effects. Here, we review novel findings that have shifted our understanding of the role of Aβ in the pathogenesis of Alzheimer's disease. Read More

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Classification criteria for acute retinal necrosis syndrome.

Am J Ophthalmol 2021 Apr 9. Epub 2021 Apr 9.

Members of the SUN Working Group are listed online at ajo.com.

Purpose: To determine classification criteria for acute retinal necrosis (ARN).

Design: Machine learning of cases with ARN and 4 other infectious posterior/ panuveitides.

Methods: Cases of infectious posterior/panuveitides were collected in an informatics-designed preliminary database, and a final database was constructed of cases achieving supermajority agreement on diagnosis, using formal consensus techniques. Read More

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Classification criteria for herpes simplex virus anterior uveitis.

Am J Ophthalmol 2021 Apr 9. Epub 2021 Apr 9.

the Department of Medicine, Texas A&M University, College Station, TX, USA.

Purpose: To determine classification criteria for herpes simplex virus (HSV) anterior uveitis DESIGN: : Machine learning of cases with HSV anterior uveitis and 8 other anterior uveitides.

Methods: Cases of anterior uveitides were collected in an informatics-designed preliminary database, and a final database was constructed of cases achieving supermajority agreement on the diagnosis, using formal consensus techniques. Cases were split into a training set and a validation set. Read More

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Polluted Air Exposure Compromises Corneal Immunity and Exacerbates Inflammation in Acute Herpes Simplex Keratitis.

Front Immunol 2021 25;12:618597. Epub 2021 Feb 25.

Laboratorio Traslacional de Inmunopatología y Oftalmología, Departamento de Patología, Facultad de Medicina, Universidad de Buenos Aires, Cuidad Autónoma de Buenos Aires, Argentina.

Air pollution is a serious environmental issue worldwide in developing countries' megacities, affecting the population's health, including the ocular surface, by predisposing or exacerbating other ocular diseases. Herpes simplex keratitis (HSK) is caused by the herpes simplex virus type 1 (HSV-1). The primary or recurring infection in the ocular site causes progressive corneal scarring that may result in visual impairment. Read More

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February 2021

Living donor liver transplantation for small infants aged less than 6 months: The experience of a single institute.

J Pediatr Surg 2021 Mar 24. Epub 2021 Mar 24.

Division of Transplantation Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, National Yang-Ming University, Taipei, Taiwan.

Purpose: Liver transplantation (LT) for small infants < 6 months old is rare but becoming common as perioperative care improves. In Taiwan, living donor LT (LDLT) has expanded indications but is rarely performed for this age group because of unfavorable outcomes in the literature. We evaluated LDLT outcomes of patients <6 months old. Read More

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Oncolytic Herpes Virus Shrinks Pediatric Gliomas.

Authors:

Cancer Discov 2021 Apr 10. Epub 2021 Apr 10.

In a small trial involving children with progressive high-grade gliomas, direct infusions of a genetically engineered strain of herpes simplex virus elicited responses in 11 of 12 recipients. The therapy also led to more than a doubling in average patient survival compared with historical expectations. Read More

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Gastrointestinal bleeding and acute liver failure.

Gastroenterology 2021 Apr 8. Epub 2021 Apr 8.

Department of Anesthesiology and Intensive Care (DAR B), Saint Eloi University Hospital, Montpellier, France.

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Oncolytic HSV-1 G207 Immunovirotherapy for Pediatric High-Grade Gliomas.

N Engl J Med 2021 Apr 10. Epub 2021 Apr 10.

From the Department of Pediatrics, Divisions of Pediatric Hematology-Oncology (G.K.F., K.K., L.N., K.-D.K., S.T., C.S., A.M.-S.), Pediatric Allergy and Immunology (T.P.A.), and Pediatric Infectious Disease (R.J.W.), and the Departments of Neurosurgery (G.K.F., J.M.J., J.M.M., G.Y.G.), Pathology (R.L.), Biostatistics (I.A.), and Radiation Oncology (J.B.F.), University of Alabama at Birmingham, and Children's of Alabama (G.K.F., J.M.J., R.L., K.K., A.M.-S., T.P.A., R.J.W.) - both in Birmingham; the Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis (A.K.B.), and the Department of Pediatrics, Vanderbilt University Medical Center, Nashville (D.P.) - both in Tennessee; the Department of Neurosurgery, Brigham and Women's Hospital and Boston Children's Hospital, Harvard Medical School, Boston (J.D.B.); the Department of Pediatrics, Albert Einstein College of Medicine (A.M.M.), and the Departments of Pediatrics (S.F.S., Y.K., M.A.K.) and Neurology (Y.K.), Memorial Sloan Kettering Cancer Center - both in New York; the Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City (R.M.-K.); the Division of Pediatric Hematology, Oncology, and Bone Marrow Transplant (K.W., D.S.O., M.S.A.) and the Department of Pediatric Neurosurgery (J.L.), Nationwide Children's Hospital, and the Department of Radiation Oncology, Ohio State University Comprehensive Cancer Center (J.D.P.) - both in Columbus; and the Division of Pediatric Hematology, Oncology, and Bone Marrow Transplant, Washington University School of Medicine, St. Louis (M.S.A.).

Background: Outcomes in children and adolescents with recurrent or progressive high-grade glioma are poor, with a historical median overall survival of 5.6 months. Pediatric high-grade gliomas are largely immunologically silent or "cold," with few tumor-infiltrating lymphocytes. Read More

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Organoid modeling of Zika and herpes simplex virus 1 infections reveals virus-specific responses leading to microcephaly.

Cell Stem Cell 2021 Apr 7. Epub 2021 Apr 7.

Institute of Molecular Biotechnology (IMBA), Austrian Academy of Sciences, Vienna BioCenter (VBC), Vienna 1030, Austria; Medical University of Vienna, Vienna 1030, Austria. Electronic address:

Viral infection in early pregnancy is a major cause of microcephaly. However, how distinct viruses impair human brain development remains poorly understood. Here we use human brain organoids to study the mechanisms underlying microcephaly caused by Zika virus (ZIKV) and herpes simplex virus (HSV-1). Read More

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Skin Reactions in Patients With Multiple Sclerosis Receiving Cladribine Treatment.

Neurol Neuroimmunol Neuroinflamm 2021 05 9;8(3). Epub 2021 Apr 9.

From the Department of Neurology (L.R., S.P., M.P., T.R., H.W.), Institute of Translational Neurology, University Hospital of Münster, Germany; Department of Neurology (J.H., C.K., R.P.), University Hospital Essen, University Duisburg-Essen, Essen, Germany; Department of Dermatology (W.S.), University Hospital Essen, University Duisburg-Essen, Essen, Germany; and Department of Neurology (M.K., S.G.M.), University Hospital Düsseldorf, Heinrich-Heine-University Düsseldorf, Germany.

Objective: To report 77 patients with multiple sclerosis (MS) who developed skin-related adverse events (AEs) following treatment with cladribine.

Methods: We evaluated our prospective bicentric cladribine cohort. Cladribine-treated patients with a skin AE were identified. Read More

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Intratumoral OH2, an oncolytic herpes simplex virus 2, in patients with advanced solid tumors: a multicenter, phase I/II clinical trial.

J Immunother Cancer 2021 Apr;9(4)

Binhui Biopharmaceutical Co., Ltd, Wuhan, China.

Background: OH2 is a genetically engineered oncolytic herpes simplex virus type 2 designed to selectively amplify in tumor cells and express granulocyte-macrophage colony-stimulating factor to enhance antitumor immune responses. We investigated the safety, tolerability and antitumor activity of OH2 as single agent or in combination with HX008, an anti-programmed cell death protein 1 antibody, in patients with advanced solid tumors.

Methods: In this multicenter, phase I/II trial, we enrolled patients with standard treatment-refractory advanced solid tumors who have injectable lesions. Read More

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Anterograde transport of α-herpesviruses in neuronal axons.

Virology 2021 Mar 4;559:65-73. Epub 2021 Mar 4.

Department of Molecular Microbiology & Immunology, Oregon Health & Science University, Portland, OR, 97239, USA. Electronic address:

α-herpesviruses have been very successful, principally because they establish lifelong latency in sensory ganglia. An essential piece of the lifecycle of α-herpesviruses involves the capacity to travel from sensory neurons to epithelial tissues following virus reactivation from latency, a process known as anterograde transport. Virus particles formed in neuron cell bodies hitchhike on kinesin motors that run along microtubules, the length of axons. Read More

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Interplay Between Endocrine Disruptors and Immunity: Implications for Diseases of Autoreactive Etiology.

Front Pharmacol 2021 23;12:626107. Epub 2021 Mar 23.

Harvard Medical School, Boston, MA, United States.

The sex-bias of disease susceptibility has remained a puzzling aspect of several autoimmune conditions, including post-infection viral autoimmunity. In the last half of the twentieth century, the incidence rate of female-biased autoimmunity has steadily increased independent of medical advances. This has suggested a role for environmental factors, such as endocrine disrupting chemicals, which have been described to interfere with endocrine signaling. Read More

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Progress of Plant Medicine Derived Extracts and Alkaloids on Modulating Viral Infections and Inflammation.

Drug Des Devel Ther 2021 31;15:1385-1408. Epub 2021 Mar 31.

Key Laboratory of Digital Quality Evaluation of Chinese Materia Medica of State Administration of TCM, Guangdong Pharmaceutical University, Guangzhou, 510006, People's Republic of China.

Viral infectious diseases are serious threats to human health in both developing and developed countries. Although there is the continued development of new drugs from synthetic sources as antiviral agents, medicinal plants continue to provide the basic raw materials for some of the most important antiviral drugs. Alkaloids are a class of pharmacologically active plant compounds that are usually alkaline in nature. Read More

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Herpesvirus encephalitis diagnosed by polymerase chain reaction at the National Institute of Neurology of Mexico.

J Neurovirol 2021 Apr 8. Epub 2021 Apr 8.

Neuroimmunology Unit, National Institute of Neurology and Neurosurgery of Mexico (NINN), Insurgentes sur 3877, 14269, Mexico City, Mexico.

The frequency of central nervous system infections due to herpesvirus have been studied in various populations; however, studies in Mexican mestizo patients are scant. This paper documents the frequency of herpesvirus encephalitis in Mexican mestizo patients from the National Institute of Neurology and Neurosurgery (NINN) of Mexico. To study the frequency of herpetic viral encephalitis at the NINN in the period from 2004 to 2009. Read More

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Herpes simplex virus esophagitis-clinical challenges in the elderly.

BMJ Case Rep 2021 Apr 7;14(4). Epub 2021 Apr 7.

Department of Internal Medicine, Centro Hospitalar de Lisboa Ocidental EPE Hospital de Egas Moniz, Lisboa, Portugal.

A 77-year-old woman presented with a 2-week history of malaise, prostration, anorexia, abdominal pain, vomiting and diarrhoea. She had been taking systemic corticosteroids for the past year. During hospitalisation, renal insufficiency, ionic changes and liver function abnormalities were detected and corrected. Read More

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Extended Safety Analysis of Baricitinib 2 mg in Adult Patients with Atopic Dermatitis: An Integrated Analysis from Eight Randomized Clinical Trials.

Am J Clin Dermatol 2021 Apr 7. Epub 2021 Apr 7.

Department of Dermatology, Oregon Health and Science University, Portland, OR, USA.

Background: Baricitinib, a selective Janus kinase 1/Janus kinase 2 inhibitor, is indicated in the European Union and Japan for the treatment of moderate-to-severe atopic dermatitis (AD) in adults who are candidates for systemic therapy.

Objective: The objective of this study was to evaluate the safety of baricitinib 2 mg in the AD clinical program.

Methods: Six double-blind, randomized, placebo-controlled studies, and two long-term extension studies were summarized in two datasets. Read More

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Epstein-Barr virus, human papillomavirus and herpes simplex virus 2 co-presence severely dysregulates miRNA expression.

Afr J Lab Med 2021 16;10(1):975. Epub 2021 Mar 16.

Department of Medical Laboratory Science, School of Public and Allied Health, Babcock University, Ilishan-Remo, Ogun State, Nigeria.

This cross-sectional study evaluated the expression of miR-let-7b, miR-21, miR-125b, miR-143, miR-145, miR-155, miR-182, miR-200c, p53 gene, Ki67, SCCA1 and CD4+ T-cell counts among 319 women, to Epstein-Barr virus, human papillomavirus and herpes simplex virus 2 mono-infections and co-infections, using enzyme-linked immunosorbent assay and reverse transcriptase-polymerase chain reaction methods. This study suggests that malignancies associated with viral co-infection could be diagnosed early by monitoring cluster of differentiation 4+ T-cell counts and serum expression of miR-145 and miR-182. Read More

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Oncolytic herpesvirus expressing PD-L1 BiTE for cancer therapy: exploiting tumor immune suppression as an opportunity for targeted immunotherapy.

J Immunother Cancer 2021 Mar;9(4)

Department of Oncology, University of Oxford, Oxford, Oxfordshire, UK

Background: Programmed death-ligand 1 (PD-L1) is an important immune checkpoint protein that can be regarded as a pan-cancer antigen expressed by multiple different cell types within the tumor. While antagonizing PD-L1 is well known to relieve PD-1/PD-L1-mediated T cell suppression, here we have combined this approach with an immunotherapy strategy to target T cell cytotoxicity directly toward PD-L1-expressing cells. We developed a bi-specific T cell engager (BiTE) crosslinking PD-L1 and CD3ε and demonstrated targeted cytotoxicity using a clinically relevant patient-derived ascites model. Read More

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Anti-N-Methyl-D-Aspartate receptor Encephalitis as a potential cause of worsening Herpes Simplex Virus Encephalitis.

J Pak Med Assoc 2021 Feb;71(2(A)):569-570

5th Year MBBS Student, Army Medical College, Rawalpindi, Pakistan.

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February 2021

Pediatric -Methyl-d-Aspartate (NMDA) Receptor Encephalitis, With and Without Herpes Encephalitis.

J Child Neurol 2021 Apr 5:8830738211002679. Epub 2021 Apr 5.

Division of Pediatric Neurology, Department of Pediatrics, Children's Hospital of Alabama, 9968University of Alabama at Birmingham, Birmingham, AL, USA.

Objective: To compare clinical, diagnostic, management, and outcome factors in children with anti--methyl-d-aspartate receptor (NMDAR) encephalitis and a history of herpes simplex encephalitis (HSE) to children with NMDAR encephalitis without a history of HSE.

Methods: All patients with anti-NMDAR antibodies in cerebrospinal fluid treated at our institution between 2012 and 2019 were identified and divided into those with a history of HSE (HSE+NMDAR group) and those without a history of HSE (NMDAR-only group). Demographic data, clinical characteristics, immunotherapy, and outcome data were collected on all patients and compared between the 2 groups. Read More

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Clinical features of a large chronic ulcer on the genital and perianal region in HIV-infected patients can be a strong clinical clue for the diagnosis of herpes simplex infection.

Indian J Sex Transm Dis AIDS 2020 Jul-Dec;41(2):192-195. Epub 2020 Jul 31.

Department of Dermatology and Venereology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India.

Herpes simplex infection presents as a large, chronic, genital, and perianal ulcer in immunosuppressed HIV-positive patients. However, the characteristic morphological feature for clinical diagnosis is unclear. This case series illustrates the morphological characteristics of large, chronic, herpes simplex ulcers at the genital and perianal region in four HIV-positive patients. Read More

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Sexually transmitted infections and human immunodeficiency virus coinfection: Scenario in Western India.

Indian J Sex Transm Dis AIDS 2020 Jul-Dec;41(2):162-168. Epub 2020 Jul 31.

Department of Dermatology, B. J. Medical College, Ahmedabad, Gujarat, India.

Context: Sexually transmitted infections (STIs) have a well-established synergistic relationship with human immunodeficiency virus (HIV) infection. Coinfection with HIV and STI can increase the probability of HIV transmission to an uninfected partner by increasing HIV concentrations in genital lesions, genital secretions, or both. Concurrent HIV infection alters the natural history of the classic STIs. Read More

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Improved safety of induced pluripotent stem cell-derived antigen-presenting cell-based cancer immunotherapy.

Mol Ther Methods Clin Dev 2021 Jun 5;21:171-179. Epub 2021 Mar 5.

Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa 277-8577, Japan.

The tumorigenicity and toxicity of induced pluripotent stem cells (iPSCs) and their derivatives are major safety concerns in their clinical application. Recently, we developed granulocyte-macrophage colony-stimulating factor (GM-CSF)-producing proliferating myeloid cells (GM-pMCs) from mouse iPSCs as a source of unlimited antigen-presenting cells for use in cancer immunotherapy. As GM-pMCs are generated by introducing and into iPSC-derived MCs and are dependent on self-produced GM-CSF for proliferation, methods to control their proliferation after administration should be introduced to improve safety. Read More

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Lack of neonatal Fc receptor does not diminish the efficacy of the HSV-1 0ΔNLS vaccine against ocular HSV-1 challenge.

Vaccine 2021 Apr 1. Epub 2021 Apr 1.

Department of Ophthalmology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.

The neonatal Fc receptor (FcRn) is constitutively expressed in the cornea and is up-regulated in response to herpes simplex virus type 1 (HSV-1). Previously, we found targeting cornea FcRn expression by small interfering RNA-mediated knockdown reduced the local efficacy of HSV-1 0ΔNLS vaccinated C57BL/6 mice against ocular challenge with HSV-1. The current study was undertaken to evaluate the HSV-1 0ΔNLS vaccine efficacy in FcRn deficient (FcRn KO) mice challenged with HSV-1. Read More

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