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Heinz JL, Swagemakers SMA, von Hofsten J, Helleberg M, Thomsen MM, De Keukeleere K, de Boer JH, Ilginis T, Verjans GMGM, van Hagen PM, van der Spek PJ, Mogensen TH. Whole exome sequencing of patients with varicella-zoster virus and herpes simplex virus induced acute retinal necrosis reveals rare disease-associated genetic variants. Front Mol Neurosci 2023; 16:1253040. [PMID: 38025266 PMCID: PMC10630912 DOI: 10.3389/fnmol.2023.1253040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose Herpes simplex virus (HSV) and varicella-zoster virus (VZV) are neurotropic human alphaherpesviruses endemic worldwide. Upon primary infection, both viruses establish lifelong latency in neurons and reactivate intermittently to cause a variety of mild to severe diseases. Acute retinal necrosis (ARN) is a rare, sight-threatening eye disease induced by ocular VZV or HSV infection. The virus and host factors involved in ARN pathogenesis remain incompletely described. We hypothesize an underlying genetic defect in at least part of ARN cases. Methods We collected blood from 17 patients with HSV-or VZV-induced ARN, isolated DNA and performed Whole Exome Sequencing by Illumina followed by analysis in Varseq with criteria of CADD score > 15 and frequency in GnomAD < 0.1% combined with biological filters. Gene modifications relative to healthy control genomes were filtered according to high quality and read-depth, low frequency, high deleteriousness predictions and biological relevance. Results We identified a total of 50 potentially disease-causing genetic variants, including missense, frameshift and splice site variants and on in-frame deletion in 16 of the 17 patients. The vast majority of these genes are involved in innate immunity, followed by adaptive immunity, autophagy, and apoptosis; in several instances variants within a given gene or pathway was identified in several patients. Discussion We propose that the identified variants may contribute to insufficient viral control and increased necrosis ocular disease presentation in the patients and serve as a knowledge base and starting point for the development of improved diagnostic, prophylactic, and therapeutic applications.
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Affiliation(s)
- Johanna L. Heinz
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Sigrid M. A. Swagemakers
- Department of Pathology and Clinical Bioinformatics, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Joanna von Hofsten
- Department of Clinical Neuroscience, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Ophthalmology, Halland Hospital Halmstad, Halmstad, Sweden
| | - Marie Helleberg
- Department of Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
- Center of Excellence for Health, Immunity and Infections, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Michelle M. Thomsen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Kerstin De Keukeleere
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - Joke H. de Boer
- Department of Ophthalmology, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Tomas Ilginis
- Department of Ophthalmology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Georges M. G. M. Verjans
- HerpeslabNL, Department of Viroscience, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Peter M. van Hagen
- Department of Internal Medicine and Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Peter J. van der Spek
- Department of Pathology and Clinical Bioinformatics, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Trine H. Mogensen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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Ocular Adverse Events after Inactivated COVID-19 Vaccination. Vaccines (Basel) 2022; 10:vaccines10060918. [PMID: 35746527 PMCID: PMC9230105 DOI: 10.3390/vaccines10060918] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 12/31/2022] Open
Abstract
Purpose: To report the clinical characteristics of ocular adverse events that have occurred, in China, after vaccination with inactivated COVID-19 vaccines. Methods: A retrospective cross-sectional observational study was conducted of ocular disorders that occurred within 15 days from any dose of an inactivated COVID-19 vaccine. Information on gender, age, the interval between the vaccination and ocular symptoms, laterality, duration of the ocular symptoms, primary visual acuity, and clinical diagnosis were retrospectively collected. Results: Twenty-four patients were involved in the study, including 15 females and 9 males, with a mean age of 41 ± 16 years (range of 8−71 years). The patients all denied a prior history of COVID-19 infection. Ocular adverse events occurred after the first dose of vaccine in 18 patients and, after the second or third doses, in six patients. The interval between vaccination with the inactivated COVID-19 vaccine and ocular symptoms was 6 ± 5 days; six patients were bilaterally involved and 18 patients were unilaterally involved. Regarding the diagnosis, 10 patients were diagnosed with white dot syndrome (WDS), 9 patients were diagnosed with uveitis, and 5 patients were diagnosed with retinal vascular disorders. The ages of patients with WDS were younger than those with uveitis or retinal vascular disorders (32 ± 10 vs. 48 ± 18, p < 0.05). For patients diagnosed with WDS, the best-corrected visual acuity (BCVA) was 0.74 ± 0.73 LogMAR. For patients diagnosed with retinal vascular disorders or uveitis, the BCVA was 1.44 ± 1.26 LogMAR. There was no significant difference (p > 0.05). Conclusions: A relationship cannot be established between inactivated COVID-19 vaccines and ocular disorders; therefore, further investigation of the clinical spectrum of ocular adverse events after vaccination with an inactivated COVID-19 vaccine is necessary.
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Li Y, Tong L, Quek C, Feng Y. The Role of Nervous System and Immune System in Herpes Zoster Ophthalmicus Dissemination and Laterality - Current Views. Ocul Immunol Inflamm 2022; 31:810-818. [PMID: 35412940 DOI: 10.1080/09273948.2022.2058556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE Herpes zoster ophthalmicus (HZO) is a sight-threatening condition that is defined as HZ involving the ophthalmic division of the trigeminal nerve. Cases of bilateral HZO in recent literature question the notion of HZO being a strictly unilateral disease. Its pathogenesis is a topic of debate and current literature on VZV dissemination lacks insight into the underlying immunology. This review focuses on novel research in immunology of HZO and aims to formulate hypotheses of spread of lesions through the CNS. METHODS A literature search was conducted on Entrez PubMed using the search terms "bilateral" and "herpes zoster ophthalmicus". Articles on ("Immunology" or "immune cells") and "herpes zoster ophthalmicus" were also searched for. Articles published from January 1942 to April 2020 that were in English language were included. RESULTS Our findings revealed that hypothesised mechanisms of dissemination causing bilateral ocular disease include transmission from nerves to vessel walls, the synergistic action of the immune and nervous systems through the action of substance P and the von Szily reaction. CONCLUSIONS These mechanisms may be investigated using newer models of animal experimentation. It is imperative to define the molecular mechanisms behind VZV transmission to improve methods of identification, treatment, and prevention of HZO.
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Affiliation(s)
- Yue Li
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, Haidian, China
| | - Louis Tong
- Cornea and External Eye Disease Service, Singapore National Eye Centre, Singapore, Singapore.,Ocular Surface Research Group, Singapore Eye Research Institute, Singapore, Singapore.,Clinical Program, Duke-National University of Singapore Medical School, Singapore, Singapore.,Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chrystie Quek
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Yun Feng
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing, Haidian, China
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Chaudhary V, Wisely SM, Hernández FA, Hines JE, Nichols JD, Oli MK. A multi‐state occupancy modelling framework for robust estimation of disease prevalence in multi‐tissue disease systems. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Vratika Chaudhary
- Department of Wildlife Ecology and Conservation University of Florida Gainesville FL USA
| | - Samantha M. Wisely
- Department of Wildlife Ecology and Conservation University of Florida Gainesville FL USA
- School of Natural Resources and Environment University of Florida Gainesville FL USA
| | - Felipe A. Hernández
- Instituto de Medicina Preventiva VeterinariaFacultad de Ciencias VeterinariasEdificio Federico Saelzer Valdivia Chile
| | - James E. Hines
- U.S. Geological SurveyPatuxent Wildlife Research Center Beltsville MD USA
| | - James D. Nichols
- U.S. Geological SurveyPatuxent Wildlife Research Center Laurel MD USA
| | - Madan K. Oli
- Department of Wildlife Ecology and Conservation University of Florida Gainesville FL USA
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Anthony CL, Bavinger JC, Yeh S. Advances in the Diagnosis and Management of Acute Retinal Necrosis. ANNALS OF EYE SCIENCE 2020; 5:28. [PMID: 33381683 PMCID: PMC7771653 DOI: 10.21037/aes-2019-dmu-09] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Acute retinal necrosis (ARN) is a devastating syndrome characterized by panuveitis, retinal necrosis, and a high rate of retinal detachment that may result in poor visual outcomes if not promptly diagnosed and treated. ARN is most commonly caused by viruses with the herpesvirus family. Etiologies include varicella-zoster virus, herpes simplex virus, and cytomegalovirus, and may be promptly diagnosed by polymerase chain reaction testing of aqueous or vitreous fluid. The true incidence of ARN is not known due to its rarity; as a result, clinical treatment is often guided by retrospective case series, case reports, and expert opinion. Standard of care has evolved over time but currently includes a combination of systemic and intravitreal antiviral in conjunction with topical or oral steroids and surgical therapy as needed. Combination therapy may reduce the rate of severe vision loss and increase the rate of visual acuity gain, although further studies are needed in this area. In particular for patients with mild to moderate disease, combination therapy may reduce the rate of retinal detachment. Adjunctive therapies including oral corticosteroid and prophylactic laser barricade are incompletely studied, but corticosteroid in particular, may reduce inflammation, which also is involved in the severe disease pathogenesis observed in ARN. This review discusses the advances in diagnosis and treatment of ARN, including management with combination antiviral medication and surgical interventions.
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Affiliation(s)
| | | | - Steven Yeh
- Department of Ophthalmology, Emory Eye Center, Atlanta, GA
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Xu M, Wang J, Zhang X, Yan T, Wu B, Bi K, Jia Y. Polysaccharide from Schisandra chinensis acts via LRP-1 to reverse microglia activation through suppression of the NF-κB and MAPK signaling. JOURNAL OF ETHNOPHARMACOLOGY 2020; 256:112798. [PMID: 32251761 DOI: 10.1016/j.jep.2020.112798] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/18/2020] [Accepted: 03/24/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Schisandra chinensis (Turcz.) Baill (S. Chinensis), a traditional Chinese medicine frequently used in the traditional treatment of dementia, its polysaccharide component has been widely reported. AIM OF THE STUDY In this paper, we studied whether SCP2-1, a natural product of homogeneous polysaccharide from S. Chinensis, could improve M1 and M2 polarization and inhibit neuroinflammation through lipoprotein receptor-related protein-1 (LRP-1), and futher exerted anti-inflammatory and neuroprotective effects. MATERIALS AND METHODS SCP2-1 was obtained from crude polysaccharide of S. Chinensis, BV2 microglia cells and mice stimulated by LPS were served to detect the positive role of SCP2-1 in M1/M2 polarization. The concentration of cytokine expression, IL-1β, TNF-α, IL-12 and IL-6 for M1 polarization and TGF-β, IL-10, IL-4 and Arg-1 for M2 polarization, in the BV2 and hippocampus were tested by ELISA kits. CD86 and CD206, as surface markers of M1 and M2, were tested by flow cytometry. We examined the expression of LRP-1 in BV2 cells and mouse hippocampus. The addition of siRNA for LRP-1 demonstrated the important role of LRP-1 in the neuroprotection of SCP2-1. Western blot was used to detect the activation of various mitogen-activated protein kinase (MAPKs) pathway, i.e. the phosphorylation of JNK and ERK proteins, and nuclear translocation of nuclear factor κB (NF-κB). H.E. staining was used to observe Histopathological changes. RESULTS SCP2-1 could reverse M1/M2 polarization in vitro culture and suppressed M1 polarization in the hippocampus of mice stimulated with LPS. After LPS stimulation, poor levels of LRP-1, hyperactivation of the JNK and NF-κB was appeared, which could improve by SCP2-1. The addition of siRNA for LRP-1 suppressed the protection of SCP2-1 in BV2 microglial cells. More importantly, SCP2-1 could improve LPS-induced cognitive dysfunction in mice in Y-maze and NOR test. CONCLUSIONS SCP2-1 could improve M1/M2 polarization, especially inhibit M1 polarization, and ameliorate the cognition of mice in Y-maze and NOR test. SCP2-1 play a neuroprotective role through LRP-1 to reverse activation of microglia via suppressing the overactive NF-κB and JNK pathway.
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Affiliation(s)
- Mengjie Xu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Jinyu Wang
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Xiaoying Zhang
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Traditional Chinese MateriaMedica, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Tingxu Yan
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Bo Wu
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Kaishun Bi
- The Engineering Laboratory of National and Local Union of Quality Control for Traditional Chinese Medicine, School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China
| | - Ying Jia
- Key Laboratory of Active Components of Chinese Medicine Screening and Evaluation, School of Functional Food and Wine, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, China.
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Moghadam AG, Yousefi E, Ghatie MA, Moghadam AG, Pouladfar GR, Jamalidoust M. Investigating the etiologic agents of aseptic meningitis outbreak in Iranian children. J Family Med Prim Care 2020; 9:1573-1577. [PMID: 32509652 PMCID: PMC7266184 DOI: 10.4103/jfmpc.jfmpc_1003_19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 01/25/2020] [Accepted: 02/07/2020] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION This study aimed to determine the viral agent (s) and their genome burden associated with an aseptic meningitis outbreak that occurred in Yasuj, Iran. MATERIALS AND METHODS During April to August 2015, 104 CSF samples from 104 patients under 14 years old admitted to the hospital of Yasuj, Iran, with aseptic meningitis associated clinical signs were collected. 200 μl CSF specimens was prepared for DNA and RNA viral genome extraction each and then subjected to diagnostic Taq-man real time PCR assays for the present of Enteroviruses, HSV, VZV, mumps, measles and rubella in the samples. RESULTS The majority of them had experienced clinical meningitis sign. Primary laboratory differentiated tests were in favor of viral meningitis. Among a total of 104 patients diagnosed with clinically aseptic meningitis, enterovirus as the most significant viral agent was detected in 53 subjects. However, mumps, HSV and VZV, as the endemic causes of viral meningitis, were detected in 6, 6 and 2 of the affected patients. It was revealed that two HSV and one VZV affected patients were co-infected with enteroviruses. All affected children with relatively variable viral load recovered without any sequels. CONCLUSION The present study revealed enterovirus as the main predominant cause of pediatric aseptic meningitis that broke out in Yasuj-Iran. Also, the co-circulation of mumps, HSV and VZV, as the endemic cause during the same aseptic meningitis outbreak, was demonstrated in some cases.
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Affiliation(s)
| | - Eslam Yousefi
- Department of Pediatrics, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Mohamad Amin Ghatie
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | | | - Gholam Reza Pouladfar
- Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Nemazi Hospital, Shiraz, Iran
| | - Marzieh Jamalidoust
- Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Nemazi Hospital, Shiraz, Iran
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