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Awadalla M, Liu A. TORCH Infections. Pediatr Ann 2023; 52:e400-e406. [PMID: 37935398 DOI: 10.3928/19382359-20230908-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Perinatal and neonatal infections are a significant cause of morbidity and mortality. As such, early recognition and workup when there is clinical concern is essential to supporting affected neonates. This article aims to focus specifically on the effects of toxoplasmosis, rubella, cytomegalovirus, herpes, and other agents (TORCH) infections, discussing epidemiology, diagnostics, and treatment if available. [Pediatr Ann. 2023;52(11):e400-e406.].
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Lee CK, Ng SY, Chai CN, Lim YF, Hu TJ, Lee OF, Yan G. Successful Confirmation of Dual Genital Herpes Co-Infection with Herpes Simplex Virus 1 and Herpes Simplex Virus 2 Using Unbiased Metagenomic Next-Generation Sequencing. Viruses 2023; 15:1957. [PMID: 37766363 PMCID: PMC10534666 DOI: 10.3390/v15091957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Dual co-infection with both HSV-1 and HSV-2 is rare, with few cases reported in the literature. In this case report, we describe the successful use of unbiased metagenomic next-generation sequencing (mNGS) as a rapid and alternative method for confirming dual genital herpes co-infection. Our case involves a 74-year-old woman who presented with genital lesions and initially tested positive for both HSV-1 and HSV-2 via the Luminex ARIES HSV 1&2 assay. The entire mNGS process, from nucleic acid extraction to result analysis, was completed in less than 48 h. Using mNGS, we identified mapped reads specific to either HSV-1 or HSV-2 and screened the sequences to rule out mis-genotyping by the Luminex ARIES assay. Notably, the generated sequences can reveal sequence variations within multiple gene regions, demonstrating the potential of mNGS for identifying novel HSV-1 and HSV-2 variants. Our findings suggest that mNGS can serve as a rapid and reliable alternative confirmatory method for dual genital herpes infections, providing valuable information to guide appropriate treatment options for patients. By eliminating the need for prior knowledge of causative agents, mNGS offers an unbiased approach for detecting and characterizing viral co-infections.
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Affiliation(s)
- Chun Kiat Lee
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
| | - Sau Yoke Ng
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
| | - Chean Nee Chai
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
| | - Yu Feng Lim
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
| | - Tiffany Jingyan Hu
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
| | - Ogestelli Fabia Lee
- School of Life and Physical Sciences, PSB Academy, Singapore 039594, Singapore
| | - Gabriel Yan
- Department of Laboratory Medicine, National University Health System, Singapore 119228, Singapore
- Department of Medicine, National University Health System, Singapore 119228, Singapore
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Havens JL, Calvignac-Spencer S, Merkel K, Burrel S, Boutolleau D, Wertheim JO. Phylogeographic analysis reveals an ancient East African origin of human herpes simplex virus 2 dispersal out-of-Africa. Nat Commun 2022; 13:5477. [PMID: 36115862 PMCID: PMC9482657 DOI: 10.1038/s41467-022-33214-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 09/08/2022] [Indexed: 11/10/2022] Open
Abstract
Human herpes simplex virus 2 (HSV-2) is a ubiquitous, slowly evolving DNA virus. HSV-2 has two primary lineages, one found in West and Central Africa and the other found worldwide. Competing hypotheses have been proposed to explain how HSV-2 migrated out-of-Africa (i)HSV-2 followed human migration out-of-Africa 50-100 thousand years ago, or (ii)HSV-2 migrated via the trans-Atlantic slave trade 150-500 years ago. Limited geographic sampling and lack of molecular clock signal has precluded robust comparison. Here, we analyze newly sequenced HSV-2 genomes from Africa to resolve geography and timing of divergence events within HSV-2. Phylogeographic analysis consistently places the ancestor of worldwide dispersal in East Africa, though molecular clock is too slow to be detected using available data. Rates 4.2 × 10-8-5.6 × 10-8 substitutions/site/year, consistent with previous age estimates, suggest a worldwide dispersal 22-29 thousand years ago. Thus, HSV-2 likely migrated with humans from East Africa and dispersed after the Last Glacial Maximum.
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Affiliation(s)
- Jennifer L Havens
- Bioinformatics and Systems Biology Graduate Program, University of California San Diego, La Jolla, CA, USA.
| | | | - Kevin Merkel
- Viral Evolution, Robert Koch Institute, Berlin, Germany
| | - Sonia Burrel
- Virology Department, National Reference Center for Herperviruses (Associated Laboratory), AP-HP-Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, INSERM UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health (IPLESP), Paris, France
| | - David Boutolleau
- Virology Department, National Reference Center for Herperviruses (Associated Laboratory), AP-HP-Sorbonne University, Pitié-Salpêtrière Hospital, Paris, France
- Sorbonne University, INSERM UMR-S 1136, Pierre Louis Institute of Epidemiology and Public Health (IPLESP), Paris, France
| | - Joel O Wertheim
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
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Zannella C, Chianese A, De Bernardo M, Folliero V, Petrillo F, De Filippis A, Boccia G, Franci G, Rosa N, Galdiero M. Ophthalmic Solutions with a Broad Antiviral Action: Evaluation of Their Potential against Ocular Herpetic Infections. Microorganisms 2022; 10:microorganisms10091728. [PMID: 36144330 PMCID: PMC9506079 DOI: 10.3390/microorganisms10091728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/24/2022] Open
Abstract
HSV-1 can be associated with severe and recurrent eye infections characterized by a strong inflammatory response that leads to blepharoconjunctivitis, epithelial and stromal keratitis, and retinal necrosis. The incidence of HSV-1 keratitis is 1.5 million every year worldwide, including more than 40,000 new cases exhibiting serious visual failures. Generally, the therapy uses antiviral drugs to promote healing; however, there are currently no compounds that are able to completely eradicate the virus. In addition, the phenomenon of resistance is rapidly spreading among HSV-1 strains, creating mutants developing resistance to the common antiviral drugs; therefore, deep research on this issue is warranted. The efficacy of different ophthalmic solutions already on the market was evaluated for reducing HSV-1 infection. Different plaque assays were set up on epithelial cells, revealing that two ophthalmic solutions were able to inhibit viral replication in the early stages of infection. The data were further confirmed by molecular tests analyzing the expression levels of the principal genes involved in HSV-1 infection, and a strong reduction was observed after only 1 min of eye-drop treatment. Collectively, these results suggested the use of ophthalmic solutions as potential antiviral options for the treatment of ocular herpetic infection.
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Affiliation(s)
- Carla Zannella
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Annalisa Chianese
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Maddalena De Bernardo
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy
| | - Veronica Folliero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Francesco Petrillo
- Department of Ophthalmology, University of Catania, 95123 Catania, Italy
| | - Anna De Filippis
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
| | - Giovanni Boccia
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy
| | - Nicola Rosa
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy
- Correspondence: (N.R.); (M.G.)
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy
- Correspondence: (N.R.); (M.G.)
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Mielcarska MB, Skowrońska K, Wyżewski Z, Toka FN. Disrupting Neurons and Glial Cells Oneness in the Brain-The Possible Causal Role of Herpes Simplex Virus Type 1 (HSV-1) in Alzheimer's Disease. Int J Mol Sci 2021; 23:ijms23010242. [PMID: 35008671 PMCID: PMC8745046 DOI: 10.3390/ijms23010242] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 12/15/2022] Open
Abstract
Current data strongly suggest herpes simplex virus type 1 (HSV-1) infection in the brain as a contributing factor to Alzheimer's disease (AD). The consequences of HSV-1 brain infection are multilateral, not only are neurons and glial cells damaged, but modifications also occur in their environment, preventing the transmission of signals and fulfillment of homeostatic and immune functions, which can greatly contribute to the development of disease. In this review, we discuss the pathological alterations in the central nervous system (CNS) cells that occur, following HSV-1 infection. We describe the changes in neurons, astrocytes, microglia, and oligodendrocytes related to the production of inflammatory factors, transition of glial cells into a reactive state, oxidative damage, Aβ secretion, tau hyperphosphorylation, apoptosis, and autophagy. Further, HSV-1 infection can affect processes observed during brain aging, and advanced age favors HSV-1 reactivation as well as the entry of the virus into the brain. The host activates pattern recognition receptors (PRRs) for an effective antiviral response during HSV-1 brain infection, which primarily engages type I interferons (IFNs). Future studies regarding the influence of innate immune deficits on AD development, as well as supporting the neuroprotective properties of glial cells, would reveal valuable information on how to harness cytotoxic inflammatory milieu to counter AD initiation and progression.
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Affiliation(s)
- Matylda Barbara Mielcarska
- Department of Preclinical Sciences, Institute of Veterinary Sciences, Warsaw University of Life Sciences–SGGW, Jana Ciszewskiego 8, 02-786 Warsaw, Poland;
- Correspondence: ; Tel.: +48-22-59-36063
| | - Katarzyna Skowrońska
- Department of Neurotoxicology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Adolfa Pawińskiego 5, 02-106 Warsaw, Poland;
| | - Zbigniew Wyżewski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University in Warsaw, Dewajtis 5, 01-815 Warsaw, Poland;
| | - Felix Ngosa Toka
- Department of Preclinical Sciences, Institute of Veterinary Sciences, Warsaw University of Life Sciences–SGGW, Jana Ciszewskiego 8, 02-786 Warsaw, Poland;
- Department of Biomedical Sciences, Ross University School of Veterinary Medicine, Basseterre 42123, Saint Kitts and Nevis
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A Fatal Infection With Subtle and Nonspecific Signs and Symptoms: Answer. Am J Dermatopathol 2021; 42:375-377. [PMID: 32310894 DOI: 10.1097/dad.0000000000001372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pneumonia, an Unusual Initial Presentation of Neonatal Herpes Infection. Case Rep Crit Care 2019; 2019:9594289. [PMID: 31781406 PMCID: PMC6875420 DOI: 10.1155/2019/9594289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 07/22/2019] [Indexed: 11/21/2022] Open
Abstract
Neonatal herpes simplex virus (HSV) infection is a life-threatening infection with high morbidity and mortality rates. Neonatal herpes, most commonly due to HSV type 2, is a multi-system disease; however, initial pulmonary presentation is extremely unusual. We describe an infant presenting with progressive respiratory distress, which was the dominant clinical feature of HSV infection during the first days of life. Sepsis work-up and antibiotic treatment were immediately initiated; however, antiviral treatment was not given until the infant's death. HSV type 1 was isolated in nasopharyngeal and endotracheal aspirates. HSV pneumonia should be considered in a newborn with respiratory deterioration not compatible with common neonatal respiratory diseases.
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Evaluation of Viral (HHV6, Adenovirus, HSV1, Enterovirus) and Bacterial Infection in Children with Febrile Convulsion by Serum PCR and Blood Culture Mofid Children’s Hospital , 2016 - 2017. ARCHIVES OF PEDIATRIC INFECTIOUS DISEASES 2018. [DOI: 10.5812/pedinfect.63954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Abstract
Barrier sites such as the skin play a critical role in immune defense. They must maintain homeostasis with commensals and rapidly detect and limit pathogen invasion. This is accomplished in part through the production of endogenous antimicrobial peptides and proteins, which can be either constitutive or inducible. Here, we focus particularly on the control of innate antiviral proteins and present the basic aspects of their regulation in the skin by interferons (IFNs), IFN-independent immunity, and environmental factors. We also discuss the activity and (dys-)function of antiviral proteins in the context of skin-tropic viruses and highlight the relevance of the innate antiviral pathway as a potential therapeutic avenue for vulnerable patient populations and skin diseases with high risk for virus infections.
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Interleukin-36β provides protection against HSV-1 infection, but does not modulate initiation of adaptive immune responses. Sci Rep 2017; 7:5799. [PMID: 28724920 PMCID: PMC5517484 DOI: 10.1038/s41598-017-05363-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 05/26/2017] [Indexed: 12/18/2022] Open
Abstract
Interleukin-36 (IL-36) represents three cytokines, IL-36α, IL-36β and IL-36γ, which bind to the same receptor, IL-1RL2; however, their physiological function(s) remain poorly understood. Here, the role of IL-36 in immunity against HSV-1 was examined using the flank skin infection mouse model. Expression analyses revealed increased levels of IL-36α and IL-36β mRNA in infected skin, while constitutive IL-36γ levels remained largely unchanged. In human keratinocytes, IL-36α mRNA was induced by HSV-1, while IL-1β and TNFα increased all three IL-36 mRNAs. The dominant alternative splice variant of human IL-36β mRNA was isoform 2, which is the ortholog of the known mouse IL-36β mRNA. Mice deficient in IL-36β, but not IL-36α or IL-36γ, succumbed more frequently to HSV-1 infection than wild type mice. Furthermore, IL-36β−/− mice developed larger zosteriform skin lesions along infected neurons. Levels of HSV-1 specific antibodies, CD8+ cells and IFNγ-producing CD4+ cells were statistically equal in wild type and IL-36β−/− mice, suggesting similar initiation of adaptive immunity in the two strains. This correlated with the time at which HSV-1 genome and mRNA levels in primary skin lesions started to decline in both wild type and IL-36β−/− mice. Our data indicate that IL-36β has previously unrecognized functions protective against HSV-1 infection.
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Huang FK, Chen HL, Yang PH, Lin HC. Bird's Eye View of a Neonatologist: Clinical Approach to Emergency Neonatal Infection. Pediatr Neonatol 2016; 57:167-73. [PMID: 26701838 DOI: 10.1016/j.pedneo.2015.06.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 04/21/2015] [Accepted: 06/01/2015] [Indexed: 10/22/2022] Open
Abstract
Though the incidence of neonatal infection in term and near-term infants is relatively low, incidence of infection in preterm very low birth weight infants is as high as 20-30% and may result in neurodevelopmental impairment or mortality. Pediatricians should be familiar with recognition and emergency management of life-threatening neonatal infections, such as congenital pneumonia, early onset sepsis, late onset sepsis, bacterial and fungal meningitis, disseminated neonatal herpes simplex virus (HSV), and HSV meningoencephalitis. For the pediatrician, it is logical to approach the management of these infections by time of onset, i.e., early versus late onset of infection. Perinatal risk factors and simple laboratory tests, such as total white blood-cell count, immature/total ratio, and C-reactive protein are helpful in guiding the decision of antibiotics therapy. Successful management of these critical infections depends upon early diagnosis and timely administration of adequate antibiotics. Empiric antibiotic therapy must cover the most likely pathogens according to the risk factors of each individual neonate, and therapy duration is dependent upon culture results, clinical course, and the microorganism. Future research may focus on developing a practical neonatal sepsis score system based on risk factors and common biomarkers, which are readily available at bedside to make early accurate decisions and achieve better outcomes.
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Affiliation(s)
- Fu-Kuei Huang
- Department of Pediatrics, China Medical University Children Hospital, Taichung, Taiwan
| | - Hsiu-Lin Chen
- Department of Pediatrics of Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Peng-Hong Yang
- Department of Neonatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hung-Chih Lin
- Department of Pediatrics, China Medical University Children Hospital, Taichung, Taiwan; School of Chinese Medicine, China Medical University, Taichung, Taiwan.
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12
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Interleukin-1α released from HSV-1-infected keratinocytes acts as a functional alarmin in the skin. Nat Commun 2014; 5:5230. [PMID: 25323745 PMCID: PMC4237007 DOI: 10.1038/ncomms6230] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Accepted: 09/10/2014] [Indexed: 01/22/2023] Open
Abstract
Herpes simplex virus-1 (HSV-1) is a human pathogen that utilizes several strategies to circumvent the host immune response. An immune evasion mechanism employed by HSV-1 is retention of interleukin-1β (IL-1β) in the intracellular space, which blocks the pro-inflammatory activity of IL-1β. Here, we report that HSV-1 infected keratinocytes actively release the also pro-inflammatory IL-1α, preserving the ability of infected cells to signal danger to the surrounding tissue. The extracellular release of IL-1α is independent of inflammatory caspases. In vivo recruitment of leukocytes to early HSV-1 micro-infection sites within the epidermis is dependent upon IL-1 signalling. Following cutaneous HSV-1 infection, mice unable to signal via extracellular IL-1α exhibit an increased mortality rate associated with viral dissemination. We conclude that IL-1α acts as an alarmin essential for leukocyte recruitment and protective immunity against HSV-1. This function may have evolved to counteract an immune evasion mechanism deployed by HSV-1.
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Berardi A, Gallo C, Lugli L, Guidotti I, Gargano G, Maccio L, Pietrosemoli P, Ferrari F. Fatal pneumonia following maternal HSV-1 viraemia in late pregnancy. J Matern Fetal Neonatal Med 2014; 28:1694-6. [PMID: 25231597 DOI: 10.3109/14767058.2014.965139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Neonatal Herpes simplex virus (HSV) pneumonia without apparent accompanying disseminated infection is a rare condition. We describe a case of neonatal pneumonia following maternal HSV type 1 viraemia in late pregnancy. A review of the literature shows that cases of HSV presenting as pneumonia in the first week of life are the most severe form of neonatal HSV.
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Lee B, Hwang J, Choi YH, Han YJ, Choi YH, Park JD. Disseminated Neonatal Herpes Simplex Virus Infection. Korean J Crit Care Med 2013. [DOI: 10.4266/kjccm.2013.28.4.331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Bongjin Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Jinsol Hwang
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Yu Hyeon Choi
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Young Joo Han
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
| | - Young Hun Choi
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - June Dong Park
- Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
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15
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Karjala Z, Neal D, Rohrer J. Association between HSV1 seropositivity and obesity: data from the National Health and Nutritional Examination Survey, 2007-2008. PLoS One 2011; 6:e19092. [PMID: 21589933 PMCID: PMC3092767 DOI: 10.1371/journal.pone.0019092] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Accepted: 03/28/2011] [Indexed: 12/18/2022] Open
Abstract
Background Herpes simplex virus (HSV) is among the most common sexually transmitted pathogens in the United States and worldwide. HSV has a high incidence of undetected cases. In addition, there is no treatment, and there is a lack of knowledge why disparities among populations exist. Research studies suggest that fat tissue may participate in body's immune responses, and the impact of obesity on susceptibility to HSV1 infection is not clear. The purpose of this study was to examine whether obesity is a risk factor for HSV1 infection using a large sample from the general population. Methods/Principal Findings This cross-sectional study used data from the National Health and Examination and Nutritional Examination Survey (NHANES) from 2007–2008. Variables, gender, age, race/ethnicity, marital status, education, poverty level, and diabetes represented potential confounders and were included in analyses. The two-tailed Pearson's chi square, student's t test, and a multiple logistic regression analysis were applied to evaluate associations using a significance value of p≤0.05. Adjusted odds ratios with 95% confidence interval represented the degree of these associations. The prevalence of HSV1 infection in US population between 20 and 49 years old was 60.3% (n = 1,536). In this study, having a BMI classified as the obese group (BMI 30–39.9) was significantly associated with HSV1 infection before [unadjusted OR = 1.74 (95% CI 1.20–2.51), p = 0.006] and after controlling for socio-demographic factors [adjusted OR = 1.50 (95%CI 1.06–2.13)], p = 0.026]. This association was stronger than three already established risk factors of age, female gender, and poverty level. Conclusions/Significance This study provides evidence that obesity may play a role in the susceptibility to HSV1 infection. Findings from this study suggest that obesity should be considered when designing preventive measures for HSV1 infection. These results may also explain why some people acquire HSV1 infections and some do not. Further, these findings may justify an increased emphasis on the control and prevention of HSV1 transmission and other pathogens in overweight and obese populations.
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Affiliation(s)
- Zuzana Karjala
- Walden University, Minneapolis, Minnesota, United States of America.
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Massler A, Kolodkin-Gal D, Meir K, Khalaileh A, Falk H, Izhar U, Shufaro Y, Panet A. Infant lungs are preferentially infected by adenovirus and herpes simplex virus type 1 vectors: role of the tissue mesenchymal cells. J Gene Med 2011; 13:101-13. [DOI: 10.1002/jgm.1544] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Cherpes TL, Busch JL, Sheridan BS, Harvey SAK, Hendricks RL. Medroxyprogesterone acetate inhibits CD8+ T cell viral-specific effector function and induces herpes simplex virus type 1 reactivation. THE JOURNAL OF IMMUNOLOGY 2008; 181:969-75. [PMID: 18606648 DOI: 10.4049/jimmunol.181.2.969] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Clinical research suggests hormonal contraceptive use is associated with increased frequencies of HSV reactivation and shedding. We examined the effects of medroxyprogesterone acetate (MPA), the compound most commonly used for injectable hormonal contraception, on HSV type 1 (HSV-1) reactivation and CD8(+) T cell function in murine trigeminal ganglia (TG). In ex vivo TG cultures, MPA dramatically inhibited canonical CD8(+) T cell effector functions, including IFN-gamma production and lytic granule release, and increased HSV-1 reactivation from latency. In vivo, MPA treatment of latently infected ovariectomized mice inhibited IFN-gamma production and lytic granule release by TG resident CD8(+) T cells stimulated directly ex vivo. RNA specific for the essential immediate early viral gene ICP4 as well as viral genome DNA copy number were increased in mice that received MPA during latency, suggesting that treatment increased in vivo reactivation. The increase in HSV-1 copy number appeared to be the result of a two-tine effect, as MPA induced higher reactivation frequencies from latently infected explanted TG neurons in the presence or absence of CD45(+) cells. Our data suggest hormonal contraceptives that contain MPA may promote increased frequency of HSV reactivation from latency through the combinatory effects of inhibiting protective CD8(+) T cell responses and by a leukocyte-independent effect on infected neurons.
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Affiliation(s)
- Thomas L Cherpes
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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