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Tornatore M, Amaral SC, Alves BM, de Oliveira GR, Finger-Jardim F, Avila EC, Pivato AF, Lobato RC, Chies JAB, Ellwanger JH, Soares EA, Sánchez-Luquez K, Gonçalves CV, Martínez AMBD, Soares MA, da Hora VP. HLA-G alleles and their impacts on placental HSV-1 infection in women from southern Brazil. J Reprod Immunol 2023; 159:104134. [PMID: 37634319 DOI: 10.1016/j.jri.2023.104134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/29/2023]
Abstract
The Human Leukocyte Antigen G (HLA-G) is an immunoregulatory molecule with a critical role in pregnancy success. HLA-G alleles are associated with differential susceptibility to multiple conditions, including gestational problems, infectious diseases, and viral persistence. Of note, both herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) can impair HLA-G expression, interfering with HLA-G-associated immunoregulation. On the other hand, the impacts of HLA-G alleles on susceptibility to Herpesviridae infection is a neglected issue. Therefore, this study evaluated HLA-G allele frequencies and their associations with placental Herpesviridae infection in women from southern Brazil. Placenta samples were collected soon after delivery, and detection of viral DNA of HSV-1, HSV-2 and human cytomegalovirus (HCMV) was performed by polymerase chain reaction (PCR). A fragment of HLA-G (exons 2-4) was amplified by PCR, sequenced, and analyzed to allele determination. One hundred and seventy women had their alleles determined. Overall, 25 HLA-G alleles were found, distributed into 56 different genotypes. The most frequent alleles were G* 01:01:01 and G* 01:01:02, found in 37.9 % and 16.5 % of samples, respectively. Among the 170 women, 89 (52.4 %) tested positive for Herpesviridae DNA in the placenta, 55 (32.3 %) tested negative, 3 (1.8 %) were negative for HSV-1 and HSV-2 (with absent HCMV data), and 23 (13.5 %) were undetermined. The G* 01:01:01 allele was significantly associated with an increased risk of placental HSV-1 infection (p = 0.0151; OR=1.837; IC=1.108-3.045). This study describes new information concerning placental HLA-G alleles in women from southern Brazil and helps explain how genetic background can modify susceptibility to placental infections.
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Affiliation(s)
- Michele Tornatore
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | | | - Brunna M Alves
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil
| | | | - Fabiana Finger-Jardim
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Emiliana Claro Avila
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Andressa Fernandes Pivato
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Rubens Caurio Lobato
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - José Artur Bogo Chies
- Laboratory of Immunobiology and Immunogenetics, Post-Graduate Program in Genetics and Molecular Biology (PPGBM), Department of Genetics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Joel Henrique Ellwanger
- Laboratory of Immunobiology and Immunogenetics, Post-Graduate Program in Genetics and Molecular Biology (PPGBM), Department of Genetics, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Esmeralda A Soares
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil
| | - Karen Sánchez-Luquez
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Carla Vitola Gonçalves
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Ana Maria Barral de Martínez
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil
| | - Marcelo A Soares
- Post-Graduate Program in Oncovirology, Instituto Nacional do Câncer (INCA), Rio de Janeiro, RJ, Brazil; Department of Genetics, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | - Vanusa Pousada da Hora
- Post-Graduate Program in Health Sciences, Faculty of Medicine, Universidade Federal do Rio Grande (FURG), Rio Grande, RS, Brazil.
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Herpes Simplex Virus Seroprevalence among Pregnant Finnish Women and Their Spouses-A Six-Year Follow-Up Cohort Study. Microorganisms 2022; 10:microorganisms10081506. [PMID: 35893566 PMCID: PMC9331543 DOI: 10.3390/microorganisms10081506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 12/10/2022] Open
Abstract
The aim was to evaluate the herpes simplex virus (HSV) seroprevalence and seroconversion among 285 pregnant women and their 120 male spouses in Finland during a six-year follow-up (FU) between 1998–2008. We also studied the effect of sexual habits, pregnancy, and other demographic factors on the acquisition of HSV infection. Combined HSV-1 and HSV-2-IgG antibodies were assessed in the first baseline serum samples with an indirect enzyme immunoassay method. The individuals with seronegative or borderline HSV serology at baseline were additionally tested using their latest FU serum sample available. The overall HSV seroprevalence during the FU was 58.9% (168/285) among the women and 53.3% (64/120) among their spouses. The seroconversion rate was 11.4% (15/132) and 12.5% (8/64) among women and their spouses, respectively. Both spouses were HSV seropositive in 39.2% (47/120). To determine the HSV-2 seroprevalence, we also tested all HSV-seropositive participants using HSV-2-specific antigen. HSV-2 seropositivity was detected in 10.9% (44/405) of the participants. The age (p = 0.006) and history of genital warts (p = 0.006) of the women were associated with combined HSV-1 and/or HSV-2 seropositivity, while a younger age was related to HSV seroconversion (p = 0.023). Among the male spouses, HSV seropositivity was associated with the practice of oral sex (p = 0.033). To conclude, women of childbearing age acquire primary HSV infections and the presence of HSV in oral epithelium is common among HSV-seropositive individuals.
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Begazo L, Morante A, Espinoza Montes C. [Herpes simplex factors: Literature review]. REVISTA CIENTÍFICA ODONTOLÓGICA 2022; 10:e099. [PMID: 38389913 PMCID: PMC10880724 DOI: 10.21142/2523-2754-1001-2022-099] [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: 11/30/2021] [Accepted: 03/30/2022] [Indexed: 02/24/2024] Open
Abstract
Herpes simplex virus, after the first infection, can remain dormant in the lymph nodes and reactivate at any time due to certain factors and/or stimuli causing effects in the patient. The purpose of this literature review is to update scientific information on the factors that predispose to the reactivation of herpes simplex virus. A comprehensive literature review was conducted in the LILACS, SciELO, PubMed, Scopus and the following keywords were used: herpes simplex, reactivation, latency and risks. A factor is reactivation by immunosuppression due to the intake of immunosuppressants or oncological therapy. Another factor is psychological stress, in which the hormones released act on mediating signs of reactivation. Sun exposure that reactivates the virus in infected neurons and infection in pregnant women can trigger complications in the fetus and delivery.
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Affiliation(s)
- Lisette Begazo
- Carrera de Estomatología, Facultad de Ciencias de la Vida y Salud. Universidad Científica del Sur, Lima, Perú. , , Universidad Científica del Sur Carrera de Estomatología Facultad de Ciencias de la Vida y Salud Universidad Científica del Sur Lima Peru
| | - Alysson Morante
- Carrera de Estomatología, Facultad de Ciencias de la Vida y Salud. Universidad Científica del Sur, Lima, Perú. , , Universidad Científica del Sur Carrera de Estomatología Facultad de Ciencias de la Vida y Salud Universidad Científica del Sur Lima Peru
| | - Carlos Espinoza Montes
- Carrera de Estomatología, Facultad de Ciencias de la Vida y Salud. Universidad Científica del Sur, Lima, Perú. , , Universidad Científica del Sur Carrera de Estomatología Facultad de Ciencias de la Vida y Salud Universidad Científica del Sur Lima Peru
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An advanced molecularly imprinted electrochemical sensor for the highly sensitive and selective detection and determination of Human IgG. Bioelectrochemistry 2020; 137:107671. [PMID: 32950847 PMCID: PMC7480476 DOI: 10.1016/j.bioelechem.2020.107671] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/05/2020] [Accepted: 09/05/2020] [Indexed: 12/25/2022]
Abstract
An advanced molecularly imprinted electrochemical sensor with high sensitivity and selectivity for the detection of Human immunoglobulin G (IgG) was successfully constructed. With acrylamide imprinting systems, surface imprinting on the nanoparticles CuFe2O4 targeted at IgG was employed to prepare molecularly imprinted polymer, which served as recognition element for the electrochemical sensor. Furthermore, the sensor harnessed a molybdenum disulfide (MoS2)@nitrogen doped graphene quantum dots (N-GQDs) with ionic liquid (IL) nanocomposite for signal amplification. Under optimized experimental conditions, the sensor shortened the response time to less than 8 min, and the response was linear at the IgG concentration of 0.1-50 ng·mL-1 with a low detection limit of 0.02 ng·mL-1 (S/N = 3). Our findings suggested that, the sensor exhibited high detectability and long-time stability. The satisfactory results of human serum sample analysis showed that the developed IgG sensor had promising potential clinical applications in detecting IgG content.
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James C, Harfouche M, Welton NJ, Turner KM, Abu-Raddad LJ, Gottlieb SL, Looker KJ. Herpes simplex virus: global infection prevalence and incidence estimates, 2016. Bull World Health Organ 2020; 98:315-329. [PMID: 32514197 PMCID: PMC7265941 DOI: 10.2471/blt.19.237149] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 01/21/2020] [Accepted: 01/21/2020] [Indexed: 12/25/2022] Open
Abstract
Objective To generate global and regional estimates for the prevalence and incidence of herpes simplex virus (HSV) type 1 and type 2 infection for 2016. Methods To obtain data, we undertook a systematic review to identify studies up to August 2018. Adjustments were made to account for HSV test sensitivity and specificity. For each World Health Organization (WHO) region, we applied a constant incidence model to pooled prevalence by age and sex to estimate the prevalence and incidence of HSV types 1 and 2 infections. For HSV type 1, we apportioned infection by anatomical site using pooled estimates of the proportions that were oral and genital. Findings In 2016, an estimated 491.5 million people (95% uncertainty interval, UI: 430.4 million–610.6 million) were living with HSV type 2 infection, equivalent to 13.2% of the world’s population aged 15–49 years. An estimated 3752.0 million people (95% UI: 3555.5 million–3854.6 million) had HSV type 1 infection at any site, equivalent to a global prevalence of 66.6% in 0–49-year-olds. Differing patterns were observed by age, sex and geographical region, with HSV type 2 prevalence being highest among women and in the WHO African Region. Conclusion An estimated half a billion people had genital infection with HSV type 2 or type 1, and several billion had oral HSV type 1 infection. Millions of people may also be at higher risk of acquiring human immunodeficiency virus (HIV), particularly women in the WHO African Region who have the highest HSV type 2 prevalence and exposure to HIV.
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Affiliation(s)
- Charlotte James
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, England
| | | | - Nicky J Welton
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, England
| | | | | | - Sami L Gottlieb
- Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Katharine J Looker
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, England
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