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Caixeta RAV, Batista AM, Caetano MW, Palmieri M, Schwab G, Zerbinati RM, Victor ASP, Gallo CDB, Tozetto-Mendoza TR, Junges R, Ortega KL, Costa ALF, Sarmento DJDS, Pallos D, Lindoso JAL, Giannecchini S, Braz-Silva PH. Investigation of Oral Shedding of Torquetenovirus (TTV) in Moderate-to-Severe COVID-19 Hospitalised Patients. Viruses 2024; 16:831. [PMID: 38932124 PMCID: PMC11209259 DOI: 10.3390/v16060831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 05/19/2024] [Accepted: 05/23/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Torquetenovirus (TTV) is a small DNA virus constituting the human virome. High levels of TTV-DNA have been shown to be associated with immunosuppression and inflammatory chronic disorders. AIM To assess the possible association between the salivary viral load of TTV-DNA in patients hospitalised due to COVID-19 and disease severity. METHODS Saliva samples collected from 176 patients infected with SARS-CoV-2 were used to investigate the presence of SARS-CoV-2 and TTV-DNA by use of real-time RT-PCR. RESULTS The majority of patients were male with severe COVID-19. Presence of SARS-CoV-2 was observed in the saliva of 64.77% of patients, showing TTV-DNA in 55.68% of them. Patients with impaired clinical conditions (p < 0.001), which evolved to death (p = 0.003), showed a higher prevalence of TTV-DNA. The median viral load in patients with severe condition was 4.99 log10 copies/mL, in which those who were discharged and those evolving to death had values of 3.96 log10 copies/mL and 6.27 log10 copies/mL, respectively. A statistically significant association was found between the distribution of TTV-DNA viral load in saliva samples and severity of COVID-19 (p = 0.004) and disease outcomes (p < 0.001). CONCLUSIONS These results indicate that TTV-DNA in saliva could be a useful biomarker of COVID-19 severity and prognosis.
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Affiliation(s)
- Rafael Antônio Velôso Caixeta
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
| | - Alexandre Mendes Batista
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Matheus Willian Caetano
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Michelle Palmieri
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
| | - Gabriela Schwab
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Rodrigo Melim Zerbinati
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Andressa Silva Pereira Victor
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Camila de Barros Gallo
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
| | - Tânia Regina Tozetto-Mendoza
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
| | - Roger Junges
- Institute of Oral Biology, Faculty of Dentistry, University of Oslo, 0313 Oslo, Norway;
| | - Karem L. Ortega
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
- Oral Medicine, Oral Surgery and Implantology Unit (MedOralRes), Faculty of Medicine and Dentistry, University of Santiago de Compostela, 15705 Santiago de Compostela, Spain
| | | | | | - Débora Pallos
- School of Dentistry, University of Santo Amaro, São Paulo 04743-030, Brazil;
| | - José Angelo Lauletta Lindoso
- Emílio Ribas Institute of Infectious Diseases, São Paulo 01246-900, Brazil;
- Laboratory of Protozoology (LIM-49-HC-FMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 01246-903, Brazil
- Department of Infectious Diseases, University of São Paulo School of Medicine, São Paulo 01246-903, Brazil
| | - Simone Giannecchini
- Department of Experimental and Clinical Medicine, University of Florence, 50134 Florence, Italy
| | - Paulo Henrique Braz-Silva
- Department of Stomatology, School of Dentistry, University of São Paulo, São Paulo 05508-000, Brazil; (R.A.V.C.); (M.W.C.); (M.P.); (C.d.B.G.); (K.L.O.)
- Laboratory of Virology (LIM-52-HCFMUSP), Institute of Tropical Medicine, University of São Paulo School of Medicine, São Paulo 05403-000, Brazil; (A.M.B.); (G.S.); (R.M.Z.); (A.S.P.V.); (T.R.T.-M.)
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Ceccarani C, Gaspari V, Morselli S, Djusse ME, Venturoli S, Camboni T, Severgnini M, Foschi C, Consolandi C, Marangoni A. Chlamydia trachomatis and Neisseria gonorrhoeae rectal infections: Interplay between rectal microbiome, HPV infection and Torquetenovirus. PLoS One 2024; 19:e0301873. [PMID: 38578759 PMCID: PMC10997096 DOI: 10.1371/journal.pone.0301873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 03/22/2024] [Indexed: 04/07/2024] Open
Abstract
Men having sex with men (MSM) represent a key population, in which sexually transmitted rectal infections (STIs) caused by Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and high-risk HPV (HR-HPV) are very common and linked to significant morbidity. Investigating the anorectal microbiome associated with rectal STIs holds potential for deeper insights into the pathogenesis of these infections and the development of innovative control strategies. In this study, we explored the interplay at the rectal site between C. trachomatis, N. gonorrhoeae, HR-HPV infection, and the anorectal microbiome in a cohort of 92 MSM (47 infected by CT and/or NG vs 45 controls). Moreover, we assessed the presence of Torquetenovirus (TTV), a non-pathogenic endogenous virus, considered as a possible predictor of immune system activation. We found a high prevalence of HR-HPV rectal infections (61%), especially in subjects with a concurrent CT/NG rectal infection (70.2%) and in people living with HIV (84%). In addition, we observed that TTV was more prevalent in subjects with CT/NG rectal infections than in non-infected ones (70.2% vs 46.7%, respectively). The anorectal microbiome of patients infected by CT and/or NG exhibited a reduction in Escherichia, while the presence of TTV was significantly associated with higher levels of Bacteroides. We observed a positive correlation of HR-HPV types with Escherichia and Corynebacterium, and a negative correlation with the Firmicutes phylum, and with Prevotella, Oscillospira, Sutterella. Our findings shed light on some of the dynamics occurring within the rectal environment involving chlamydial/gonococcal infections, HPV, TTV, and the anorectal microbiome. These data could open new perspectives for the control and prevention of STIs in MSM.
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Affiliation(s)
- Camilla Ceccarani
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
- National Biodiversity Future Center S.c.a.r.l., Palermo, Italy
| | - Valeria Gaspari
- Dermatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Sara Morselli
- Department of Medical and Surgical Sciences, Section of Microbiology, Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Marielle Ezekielle Djusse
- Department of Medical and Surgical Sciences, Section of Microbiology, Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - Simona Venturoli
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Tania Camboni
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Marco Severgnini
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
- National Biodiversity Future Center S.c.a.r.l., Palermo, Italy
| | - Claudio Foschi
- Department of Medical and Surgical Sciences, Section of Microbiology, Alma Mater Studiorum—University of Bologna, Bologna, Italy
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Clarissa Consolandi
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
- National Biodiversity Future Center S.c.a.r.l., Palermo, Italy
| | - Antonella Marangoni
- Department of Medical and Surgical Sciences, Section of Microbiology, Alma Mater Studiorum—University of Bologna, Bologna, Italy
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Da Costa AC, Bortoletto P, Spandorfer SD, Tozetto-Mendoza TR, Linhares IM, Mendes-Correa MC, Witkin SS. Association between torquetenovirus in vaginal secretions and infertility: An exploratory metagenomic analysis. Am J Reprod Immunol 2023; 90:e13788. [PMID: 37881119 DOI: 10.1111/aji.13788] [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: 03/26/2023] [Revised: 06/20/2023] [Accepted: 10/10/2023] [Indexed: 10/27/2023] Open
Abstract
PROBLEM The association of viruses with infertility remains incompletely evaluated. METHOD OF STUDY Vaginal secretions from 46 women seeking treatment in the Center for Reproductive Medicine and Infertility at Weill Cornell Medicine were tested for viruses by metagenomic analysis by lab personnel blinded to all clinical data. RESULTS Torquetenovirus (TTV) was identified in 16 women, alphapapillomavirus in seven women and most were positive for bacteriophages. Twelve of the subjects were fertile and sought to freeze their oocytes for future implantation. These women were all negative for TTV. In contrast, 16 of the 34 women (47.1%) being treated for infertility were TTV-positive (p = .0035). Evaluating the women by cause of infertility, five of nine women (55.6%) whose male partner had inadequate sperm parameters and six of 14 women (42.9%) with defective ovulation were TTV positive (p = .0062 and p = .0171, respectively, vs. the fertile women). Alphapapillomavirus was identified in one (8.3%) fertile woman, five (35.7%) women with ovulation deficiency, and one (11.1%) woman with male factor infertility. These differences were not statistically significant. There were no differences in bacteriophage families or the presence of Lactobacillus phages between fertile or infertile women or between different causes of infertility. There was a negative association between TTV detection and Lactobacillus crispatus dominance in the vaginal microbiota (p = .0184), but no association between TTV detection and the presence of alphapapillomavirus or Candida species. CONCLUSION Detection of TTV in the vagina might be a biomarker for specific causes of infertility.
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Affiliation(s)
- A Charlys Da Costa
- Laboratory of Investigative Medicine in Virology (LIM 52), Department of Infectious Diseases, Institute of Tropical Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Pietro Bortoletto
- Boston IVF, Waltham, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Steven D Spandorfer
- Center for Reproductive Medicine and Infertility, Weill Cornell Medicine, New York, USA
| | - Tania Regina Tozetto-Mendoza
- Laboratory of Investigative Medicine in Virology (LIM 52), Department of Infectious Diseases, Institute of Tropical Medicine, University of Sao Paulo, Sao Paulo, Brazil
| | - Iara M Linhares
- Department of Gynecology and Obstetrics, Faculty of Medicine of the University of Sao Paulo, Sao Paulo, Brazil
| | - Maria Cassia Mendes-Correa
- Faculty of Medicine of the University of São Paulo - São Paulo, Sao Paulo, Brazil
- Laboratory of Investigative Medicine in Virology (LIM-52), Sao Paulo, Brazil
| | - Steven S Witkin
- Laboratory of Investigative Medicine in Virology (LIM-52), Sao Paulo, Brazil
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, USA
- Faculty of Medicine of the University of São Paulo, São Paulo, Brazil
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Tozetto-Mendoza TR, da- Costa AC, Moron AF, Leal É, Lima SH, Ferreira NE, Honorato L, Paião HGO, Freire WS, Mendes-Correa MC, Witkin SS. Characterization of Torquetenovirus in amniotic fluid at the time of in utero fetal surgery: correlation with early premature delivery and respiratory distress. Front Med (Lausanne) 2023; 10:1161091. [PMID: 37547599 PMCID: PMC10400322 DOI: 10.3389/fmed.2023.1161091] [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: 02/07/2023] [Accepted: 06/26/2023] [Indexed: 08/08/2023] Open
Abstract
Torquetenovirus (TTV) is a commensal virus present in many healthy individuals. Although considered to be non-pathogenic, its presence and titer have been shown to be indicative of altered immune status in individuals with chronic infections or following allogeneic transplantations. We evaluated if TTV was present in amniotic fluid (AF) at the time of in utero surgery to correct a fetal neurological defect, and whether its detection was predictive of adverse post-surgical parameters. AF was collected from 27 women by needle aspiration prior to a uterine incision. TTV titer in the AF was measured by isolation of viral DNA followed by gene amplification and analysis. The TTV genomes were further characterized and sequenced by metagenomics. Pregnancy outcome parameters were subsequently obtained by chart review. Three of the AFs (11.1%) were positive for TTV at 3.36, 4.16, and 4.19 log10 copies/mL. Analysis of their genomes revealed DNA sequences similar to previously identified TTV isolates. Mean gestational age at delivery was >2 weeks earlier (32.5 vs. 34.6 weeks) and the prevalence of respiratory distress was greater (100% vs. 20.8%) in the TTV-positive pregnancies. TTV detection in AF prior to intrauterine surgery may indicate elevated post-surgical risk for earlier delivery and newborn respiratory distress.
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Affiliation(s)
- Tania Regina Tozetto-Mendoza
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - A. Charlys da- Costa
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Antonio F. Moron
- Department of Obstetrics, Universidade Federal de São Paulo, São Paulo, Brazil
- Hospital e Maternidade Santa Joana, São Paulo, Brazil
| | - Élcio Leal
- Laboratório de Diversidade Viral, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Silvia Helena Lima
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Noely Evangelista Ferreira
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Layla Honorato
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Heuder Gustavo Oliveira Paião
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Wilton Santos Freire
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Maria Cássia Mendes-Correa
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Universidade de São Paulo, Faculdade de Medicina, São Paulo, Brazil
| | - Steven S. Witkin
- Laboratório de Investigação Médica em Virologia (LIM 52), Faculdade de Medicina da Universidade de São Paulo—Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
- Departamento de Moléstias Infecciosas e Parasitárias, Universidade de São Paulo, Faculdade de Medicina, São Paulo, Brazil
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Kyathanahalli C, Snedden M, Singh L, Regalia C, Keenan-Devlin L, Borders AE, Hirsch E. Maternal plasma and salivary anelloviruses in pregnancy and preterm birth. Front Med (Lausanne) 2023; 10:1191938. [PMID: 37396897 PMCID: PMC10309558 DOI: 10.3389/fmed.2023.1191938] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/23/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction Human anelloviruses, including torque teno virus (TTV) and torque teno mini virus (TTMV), are ubiquitous in the general population and have no known pathogenicity. We investigated the prevalence and viral load of TTV and TTMV in plasma and saliva over pregnancy, and assessed their association with spontaneous or medically indicated preterm birth. Methods This is a secondary analysis of the Measurement of Maternal Stress (MOMS) study, which recruited 744 individuals with singleton pregnancies from 4 US sites (Chicago, Pittsburgh, San Antonio, and rural Pennsylvania). Baseline outpatient visits took place in the second trimester (between 12'0 and 20'6/7 weeks' gestation), and follow-up visits in the third trimester (between 32'0 and 35'6/7 weeks' gestation). In a case-control study design, participants who delivered preterm (<37 weeks) resulting from spontaneous labor and/or preterm premature rupture of membranes ("sPTB") were compared with participants experiencing medically indicated preterm birth ("iPTB"), or delivery at term ("controls"). Plasma and saliva samples obtained during the second and third trimesters were tested for the presence and quantity of TTV and TTMV using real-time PCR. Demographic data were obtained via self-report, and clinical data via medical record review by trained research personnel. Results TTV was detected in plasma from 81% (second trimester) and 77% (third trimester) of participants, and in saliva from 64 and 60%. Corresponding detection rates for TTMV were 59 and 41% in plasma, and 35 and 24% in saliva. TTV and TTMV concentrations were similar between matched plasma and saliva samples. TTV prevalence and concentrations were not significantly different between groups (sPTB, iPTB, and controls). However, plasma TTMV in the third trimester was associated with sPTB and earlier gestational age at delivery. The iPTB group was not different from either the sPTB or the control group. In saliva, concentrations of TTV and TTMV were similar among the three groups. Both TTV and TTMV were more prevalent with increasing parity and were more common in Black and Hispanic participants compared to non-Hispanic White participants. Conclusion Anellovirus presence (specifically, TTMV) in the third trimester may be associated with preterm birth. Whether this association is causative remains to be determined.
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Affiliation(s)
- Chandrashekara Kyathanahalli
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, IL, United States
| | - Madeline Snedden
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Lavisha Singh
- Department of Statistics, NorthShore University HealthSystem, Evanston, IL, United States
| | - Camilla Regalia
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
| | - Lauren Keenan-Devlin
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, IL, United States
| | - Ann E. Borders
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, IL, United States
- Center for Healthcare Studies, Institute for Public Health and Medicine, University of Chicago Pritzker School of Medicine, Northwestern University, Evanston, IL, United States
| | - Emmet Hirsch
- Department of Obstetrics and Gynecology, NorthShore University HealthSystem, Evanston, IL, United States
- Department of Obstetrics and Gynecology, Pritzker School of Medicine, University of Chicago, Chicago, IL, United States
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Cappello C, Acin-Albiac M, Pinto D, Polo A, Filannino P, Rinaldi F, Gobbetti M, Di Cagno R. Do nomadic lactobacilli fit as potential vaginal probiotics? The answer lies in a successful selective multi-step and scoring approach. Microb Cell Fact 2023; 22:27. [PMID: 36774510 PMCID: PMC9921609 DOI: 10.1186/s12934-023-02030-4] [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: 10/25/2022] [Accepted: 01/21/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND The goal of this study was to create a multi-strain probiotic gel that would foster a lactobacilli-dominated vaginal microbiota in pregnant women and ensure appropriate eubiosis for the newborn. Nomadic lactobacilli (95 strains), mostly isolated from food sources, were preliminarily screened for functional traits before being characterized for their capability to inhibit the two vaginal pathogens Streptococcus agalactiae and Candida albicans, which may lead to adverse pregnancy-related outcomes. Eight best-performing strains were chosen and furtherly investigated for their ability to produce biofilm. Lastly, the two selected potential probiotic candidates were analyzed in vitro for their ability to reduce the inflammation caused by C. albicans infection on the reconstituted human vaginal epithelium (HVE). RESULTS Lactiplantibacillus plantarum produced both isomers of lactic acid, while Lacticaseibacillus paracasei produced only L-isomer. The production of hydrogen peroxide was strain-dependent, with the highest concentrations found within Lact. paracasei strains. The auto-aggregation capacity and hydrophobicity traits were species-independent. S. agalactiae 88II3 was strongly inhibited both at pH 7.0 and 4.0, whereas the inhibition of C. albicans UNIBZ54 was less frequent. Overall, L. plantarum strains had the highest pathogen inhibition and functional scoring. L. plantarum C5 and POM1, which were selected as potential probiotic candidates also based on their ability to form biofilms, were able to counteract the inflammation process caused by C. albicans infection in the HVE model. CONCLUSIONS Our multi-step and cumulative scoring-based approach was proven successful in mining and highlighting the probiotic potential of two nomadic lactobacilli strains (L. plantarum C5 and POM1), being applicable to preserve and improve human vaginal health.
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Affiliation(s)
- Claudia Cappello
- grid.34988.3e0000 0001 1482 2038Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Marta Acin-Albiac
- grid.34988.3e0000 0001 1482 2038Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Daniela Pinto
- Human Microbiome Advanced Project, Research & Development, Milan, Italy.
| | - Andrea Polo
- grid.34988.3e0000 0001 1482 2038Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Pasquale Filannino
- grid.7644.10000 0001 0120 3326Department of Soil, Plant and Food Science, University of Bari Aldo Moro, Bari, Italy
| | - Fabio Rinaldi
- Human Microbiome Advanced Project, Research & Development, Milan, Italy
| | - Marco Gobbetti
- grid.34988.3e0000 0001 1482 2038Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
| | - Raffaella Di Cagno
- grid.34988.3e0000 0001 1482 2038Faculty of Science and Technology, Free University of Bolzano, Bolzano, Italy
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Altered vaginal eukaryotic virome is associated with different cervical disease status. Virol Sin 2022; 38:184-197. [PMID: 36565811 PMCID: PMC10176265 DOI: 10.1016/j.virs.2022.12.004] [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: 09/06/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Viruses are important components of the human body. Growing evidence suggests that they are engaged in the physiology and disease status of the host. Even though the vaginal microbiome is involved in human papillomavirus (HPV) infection and cervical cancer (CC) progression, little is known about the role of the vaginal virome. In this pilot exploratory study, using unbiased viral metagenomics, we aim to investigate the vaginal eukaryotic virome in women with different levels of cervical lesions, and examine their associations with different cervical disease status. An altered eukaryotic virome was observed in women with different levels of lesions and Lactobacillus profiles. Anelloviruses and papillomaviruses are the most commonly detected eukaryotic viruses of the vaginal virome. Higher abundance and richness of anelloviruses and papillomaviruses were associated with low-grade squamous intraepithelial lesion (LSIL) and CC. Besides, higher anellovirus abundance was also associated with lactobacillus-depleted microbiome profiles and bacterial community state (CST) type IV. Furthermore, increased correlations between Anelloviridae and Papillomaviridae occurred in the women with increased cervical disease severity level from LSIL to CC. These data suggest underlying interactions between different microbes as well as the host physiology. Higher abundance and diversity of both anelloviruses and papillomaviruses shared by LSIL and CC suggest that anellovirus may be used as a potential adjunct biomarker to predict the risk of HPV persistent infection and/or CC. Future studies need to focus on the clinical relevance of anellovirus abundance with cervical disease status, and the evaluation of their potential as a new adjunct biomarker for the prediction and prognoses of CC.
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Morselli S, Foschi C, Laghi L, Zagonari S, Patuelli G, Camboni T, Ceccarani C, Consolandi C, Djusse ME, Pedna MF, Marangoni A, Severgnini M, Sambri V. Torquetenovirus in pregnancy: Correlation with vaginal microbiome, metabolome and pro-inflammatory cytokines. Front Microbiol 2022; 13:998849. [PMID: 36160242 PMCID: PMC9501707 DOI: 10.3389/fmicb.2022.998849] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Torquetenovirus (TTV) is a negative sense, single-stranded DNA virus present in many body fluids of apparently healthy individuals. At present, it is considered a non-pathogenic endogenous virus. TTV can be detected in the vagina of pregnant women, its abundance being modulated with the extent of immune system activation. Until now, there is only scarce information regarding the association between TTV and the composition of the vaginal environment. Therefore, this study aimed to assess the presence of TTV in the vaginal ecosystem of a cohort of white women with a normal pregnancy (n = 60) at different gestational stages (first, second and third trimester) and in 9 subjects suffering a first trimester miscarriage. For each woman, we determined (i) the presence and titer of TTV, (ii) the vaginal bacterial composition by means of Nugent score and 16S rRNA gene sequencing, (iii) the vaginal metabolic profiles through 1H-NMR spectroscopy, and (iv) the vaginal concentration of two pro-inflammatory cytokines (IL-6 and IL-8). More than one third of women were found negative for TTV at all gestational stages. Although not statistically significant, the positivity for TTV dropped from 53.3% in the first to 36.6% in the third trimester. TTV loads varied greatly among vaginal samples, ranging between 2 × 101 and 2 × 105 copies/reaction. No difference in TTV prevalence and loads was observed between women with normal pregnancies and miscarriages. The presence of TTV was more common in women with a higher vaginal leucocyte count (p = 0.02). The levels of IL-6 (p = 0.02), IL-8 (p = 0.03), propionate (p = 0.001) and cadaverine (p = 0.006) were significantly higher in TTV-positive samples. TTV titer was positively correlated with the concentrations of 4-hydroxyphenyllactate (p < 0.0001), isoleucine (p = 0.01) and phenylalanine (p = 0.04). TTV-positive samples were characterized by a higher relative abundance of Sneathia (p = 0.04) and Shuttleworthia (p = 0.0009). In addition, a trend toward a decrease of Lactobacillus crispatus and Lactobacillus jensenii, and an increase of Lactobacillus iners was observed for TTV-positive samples. In conclusion, we found that TTV is quite common in women with normal pregnancy outcomes, representing a possible predictor of local immune status.
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Affiliation(s)
- Sara Morselli
- Microbiology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Claudio Foschi
- Microbiology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, Bologna, Italy
- Microbiology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Luca Laghi
- Department of Agricultural and Food Sciences (DISTAL), Centre of Foodomics, University of Bologna, Cesena, Italy
- Interdepartmental Centre for Agri-Food Industrial Research (CIRI Agrifood), University of Bologna, Cesena, Italy
| | | | | | - Tania Camboni
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Camilla Ceccarani
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Clarissa Consolandi
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Marielle Ezekielle Djusse
- Microbiology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Maria Federica Pedna
- Great Romagna Hub Laboratory, Unit of Microbiology, Pievesestina di Cesena, Italy
| | - Antonella Marangoni
- Microbiology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, Bologna, Italy
- *Correspondence: Antonella Marangoni
| | - Marco Severgnini
- Institute of Biomedical Technologies, National Research Council, Segrate, Italy
| | - Vittorio Sambri
- Microbiology Unit, Department of Specialized, Experimental and Diagnostic Medicine (DIMES), University of Bologna, Bologna, Italy
- Great Romagna Hub Laboratory, Unit of Microbiology, Pievesestina di Cesena, Italy
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9
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Tozetto-Mendoza TR, Mendes-Correa MC, Moron AF, Forney LJ, Linhares IM, Ribeiro da Silva A, Honorato L, Witkin SS. The vaginal Torquetenovirus titer varies with vaginal microbiota composition in pregnant women. PLoS One 2022; 17:e0262672. [PMID: 35051215 PMCID: PMC8775304 DOI: 10.1371/journal.pone.0262672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 01/03/2022] [Indexed: 11/18/2022] Open
Abstract
Torquetenovirus (TTV) is a nonpathogenic endogenous virus whose abundance varies with the extent of immune system activation. We determined if the TTV titer in the vagina of pregnant women was associated with vaginal microbiota composition and levels of compounds in vaginal secretions. Vaginal TTV and microbiota composition in 494 second trimester pregnant women were identified by gene amplification and analysis. Vaginal matrix metalloproteinases (MMPs), tissue inhibitors of MMP (TIMP) and lactic acid isomers were measured by ELISA. Dominance was defined as the relative abundance of a specific bacterium or species at >50% of the total number of bacteria identified. Clinical data were obtained by chart review. The median log10 TTV titer was lowest when Lactobacillus species other than L. iners were dominant (<1.0) as compared to when L. iners (4.1, p = 0.0001), bacteria other than lactobacilli (4.5, p = 0.0016) or no bacterium (4.7, p = 0.0009) dominated. The TTV titer was inversely proportional to L. crispatus abundance (p<0.0001) and directly proportional to levels of G. vaginalis (p = 0.0008) and L. iners (p = 0.0010). The TTV titer was proportional to TIMP-1, TIMP-2, MMP-8 and MMP-9 abundance (p≤0.0002) and inversely proportional to the level of D-lactic acid (p = 0.0024). We conclude that the association between variations in the TTV titer and the relative abundance of specific bacterial species and vaginal compounds indicates that local changes in immune status likely influence vaginal fluid composition.
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Affiliation(s)
- Tania Regina Tozetto-Mendoza
- Faculdade de Medicina da Universidade de São Paulo, Departament of Infectious Diseases, Laboratório de Investigação Médica em Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
- * E-mail:
| | - Maria C. Mendes-Correa
- Faculdade de Medicina da Universidade de São Paulo, Departament of Infectious Diseases, Laboratório de Investigação Médica em Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Antonio F. Moron
- Department of Obstetrics, Federal University of São Paulo, São Paulo, Brazil
| | - Larry J. Forney
- Department of Biological Sciences and Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, Idaho, United States of America
| | - Iara M. Linhares
- Department of Gynecology and Obstetrics, University of São Paulo Medical School, São Paulo, Brazil
| | - Almir Ribeiro da Silva
- Faculdade de Medicina da Universidade de São Paulo, Departament of Infectious Diseases, Laboratório de Investigação Médica em Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Layla Honorato
- Faculdade de Medicina da Universidade de São Paulo, Departament of Infectious Diseases, Laboratório de Investigação Médica em Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
| | - Steven S. Witkin
- Faculdade de Medicina da Universidade de São Paulo, Departament of Infectious Diseases, Laboratório de Investigação Médica em Virologia (LIM52), Instituto de Medicina Tropical de São Paulo, São Paulo, Brazil
- Department of Obstetrics and Gynecology, Weill Cornel Medicine, New York, New York, United States of America
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10
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Honorato L, Witkin SS, Mendes-Correa MC, Conde Toscano ALC, Linhares IM, de Paula AV, Paião HGO, de Paula VS, Lopes ADO, Lima SH, Raymundi VDC, Ferreira NE, da Silva Junior AR, Abrahim KY, Braz-Silva PH, Tozetto-Mendoza TR. The Torque Teno Virus Titer in Saliva Reflects the Level of Circulating CD4 + T Lymphocytes and HIV in Individuals Undergoing Antiretroviral Maintenance Therapy. Front Med (Lausanne) 2022; 8:809312. [PMID: 35096897 PMCID: PMC8795607 DOI: 10.3389/fmed.2021.809312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/22/2021] [Indexed: 02/05/2023] Open
Abstract
Introduction Torque teno virus (TTV) is a non-pathogenic virus present in body fluids. Its titer in the circulation increases in association with immune suppression, such as in HIV-infected individuals. We evaluated if the TTV titer in saliva from HIV-positive individuals undergoing antiretroviral therapy (ART) was related to the circulating CD4+ T lymphocyte concentration and the HIV titer. Methods Saliva was collected from 276 asymptomatic individuals undergoing ART, and an additional 48 individuals positive for AIDS-associated Kaposi's Sarcoma (AIDS-KS). The salivary TTV titer was measured by gene amplification analysis. The circulating CD4+ T lymphocyte and HIV levels were obtained by chart review. Results TTV was detectable in saliva from 80% of the asymptomatic subjects and 87% of those with AIDS-KS. In the asymptomatic group the median log10 TTV titer/ml was 3.3 in 200 males vs. 2.4 in 76 females (p < 0.0001). TTV titer/ml was 3.7 when HIV was acquired by intravenous drug usage, 3.2 when by sexual acquisition and 2.4 when blood transfusion acquired. The salivary TTV titer was inversely correlated with the circulating CD4+ T lymphocyte level (p < 0.0001) and positively correlated with the circulating HIV concentration (p = 0.0005). The median salivary TTV titer and circulating HIV titer were higher, and the CD4+ count was lower, in individuals positive for AIDS-KS than in the asymptomatic subjects (p < 0.0001). Conclusion The TTV titer in saliva is a potential biomarker for monitoring immune status in individuals undergoing ART.
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Affiliation(s)
- Layla Honorato
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Steven S Witkin
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil.,Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States
| | - Maria Cássia Mendes-Correa
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | | | - Iara Moreno Linhares
- Departamento de Ginecologia e Obstetrícia, Universidade de São Paulo, São Paulo, Brazil
| | - Anderson Vicente de Paula
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Heuder Gustavo Oliveira Paião
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Vanessa Salete de Paula
- Laboratory of Molecular Virology, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Amanda de Oliveira Lopes
- Laboratory of Molecular Virology, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Silvia Helena Lima
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Vanessa de Cássia Raymundi
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Noely Evangelista Ferreira
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Almir Ribeiro da Silva Junior
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Karim Yaqub Abrahim
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
| | - Paulo Henrique Braz-Silva
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil.,Faculdade de Odontologia da Universidade de São Paulo, São Paulo, Brazil
| | - Tania Regina Tozetto-Mendoza
- Laboratory of Virology (LIM 52), Department of Infectious Diseases, Instituto de Medicina Tropical de São Paulo, Universidade de São Paulo, São Paulo, Brazil
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11
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Batista AM, Caetano MW, Stincarelli MA, Mamana AC, Zerbinati RM, Sarmento DJS, Gallottini M, Caixeta RAV, Medina-Pestana J, Hasséus B, Zanella L, Tozetto-Mendoza TR, Giannecchini S, Braz-Silva PH. Quantification of torque teno virus (TTV) DNA in saliva and plasma samples in patients at short time before and after kidney transplantation. J Oral Microbiol 2021; 14:2008140. [PMID: 34912500 PMCID: PMC8667915 DOI: 10.1080/20002297.2021.2008140] [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] [Indexed: 11/22/2022] Open
Abstract
Background Several reports have proposed that the viral load of torque teno virus (TTV) in plasma is a biomarker of immune function in solid organ transplantation (SOT) and in allogeneic hematopoietic stem cell transplantation. Additionally, for the latter one, TTV-DNA quantification in saliva has also been suggested. Aim to investigate the correlation between the TTV viral load and immune function in paired saliva and plasma samples in patients on kidney transplantation. Materials and Methods TTV-DNA viral load was quantified in paired samples of saliva and plasma from 71 patients before and a short-time after renal-transplantation by real-time PCR. Results The data obtained from 213 paired samples showed a slight consistency in the comparison between saliva and plasma, with prevalence of TTV-DNA being 58%, 52% and 60% in saliva samples and 60%, 73% and 90% in plasma samples before and at 15–20 and 45–60 days after transplantation, respectively. Additionally, a high TTV viral load was observed in plasma at 15–20 and 45–60 days after transplantation compared to that observed in saliva at the same time. Conclusions Overall, monitoring TTV-DNA in saliva samples could be an additional fast non-invasive option to assess the immune functionality in SOT populations.
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Affiliation(s)
- Alexandre Mendes Batista
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Matheus W. Caetano
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
- Department of Stomatology, University of São Paulo School of Dentistry, São Paulo, Brazil
| | - Maria A. Stincarelli
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Ana C. Mamana
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Rodrigo Melim Zerbinati
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Dmitry J. S. Sarmento
- Department of Stomatology, University of São Paulo School of Dentistry, São Paulo, Brazil
- Department of Oral Medicine, State University of Paraiba, Araruna, Brazil
| | - Marina Gallottini
- Department of Stomatology, University of São Paulo School of Dentistry, São Paulo, Brazil
| | - Rafael A. V. Caixeta
- Department of Stomatology, University of São Paulo School of Dentistry, São Paulo, Brazil
| | - José Medina-Pestana
- Division of Renal Transplantation, Kidney and Hypertension Hospital, Federal University of São Paulo School of Medicine, São Paulo, Brazil
| | - Bengt Hasséus
- Department of Oral Medicine and Pathology, University of Gothenburg Institute of Odontology, Gothenburg, Sweden
| | - Louise Zanella
- Laboratory of Integrative Biology (LIBi), Scientific and Technological Bioresource Nucleus – Center for Excellence in Translational Medicine (BIOREN - CEMT), Universidad de La Frontera, Temuco, Chile
| | - Tania R. Tozetto-Mendoza
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
| | - Simone Giannecchini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Paulo H. Braz-Silva
- Laboratory of Virology, Institute of Tropical Medicine of São Paulo, University of São Paulo School of Medicine, São Paulo, Brazil
- Department of Stomatology, University of São Paulo School of Dentistry, São Paulo, Brazil
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12
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Torquetenovirus in saliva: A potential biomarker for SARS-CoV-2 infection? PLoS One 2021; 16:e0256357. [PMID: 34428230 PMCID: PMC8384193 DOI: 10.1371/journal.pone.0256357] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 08/04/2021] [Indexed: 12/11/2022] Open
Abstract
Torquetenovirus (TTV) is present in biological fluids from healthy individuals and measurement of its titer is used to assess immune status in individuals with chronic infections and after transplants. We assessed if the titer of TTV in saliva varied with the presence of SARS-CoV-2 in the nasopharynx and could be a marker of COVID-19 status. Saliva from 91 individuals positive for SARS-CoV-2 in nasal-oropharyngeal samples, and from 126 individuals who were SARS-CoV-2-negative, all with mild respiratory symptoms, were analyzed. Both groups were similar in age, gender, symptom duration and time after symptom initiation when saliva was collected. Titers of TTV and SARS-CoV-2 were assessed by gene amplification. Loss of smell (p = 0.0001) and fever (p = 0.0186) were more prevalent in SARS-CoV-2-positive individuals, while sore throat (p = 0.0001), fatigue (p = 0.0037) and diarrhea (p = 0.0475) were more frequent in the SARS-CoV-2 negative group. The saliva TTV and nasal-oropharyngeal SARS-CoV-2 titers were correlated (p = 0.0085). The TTV level decreased as symptoms resolved in the SARS-CoV-2 infected group (p = 0.0285) but remained unchanged in the SARS-CoV-2 negative controls. In SARS-CoV-2 positive subjects who provided 2-4 saliva samples and in which TTV was initially present, the TTV titer always decreased over time as symptoms resolved. We propose that sequential TTV measurement in saliva is potentially useful to assess the likelihood of symptom resolution in SARS-CoV-2-positive individuals and to predict prognosis.
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13
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Zhang Y, Lyu J, Ge L, Huang L, Peng Z, Liang Y, Zhang X, Fan S. Probiotic Lacticaseibacillus rhamnosus GR-1 and Limosilactobacillus reuteri RC-14 as an Adjunctive Treatment for Bacterial Vaginosis Do Not Increase the Cure Rate in a Chinese Cohort: A Prospective, Parallel-Group, Randomized, Controlled Study. Front Cell Infect Microbiol 2021; 11:669901. [PMID: 34295831 PMCID: PMC8291149 DOI: 10.3389/fcimb.2021.669901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 06/01/2021] [Indexed: 12/30/2022] Open
Abstract
The purpose of this study was to evaluate the effectiveness of metronidazole and oral probiotics adjunct to metronidazole in the treatment of bacterial vaginosis (BV). One hundred and twenty-six Chinese women with BV were enrolled in this parallel, controlled trial, and were randomly assigned into two study arms: the metronidazole group, which was prescribed metronidazole vaginal suppositories for 7 days, and the adjunctive probiotic group, which received Lacticaseibacillus rhamnosus GR-1 and Limosilactobacillus reuteri RC-14 orally for 30 days as an adjunct to metronidazole. Clinical symptoms and Nugent scores at the initial visit, 30 days and 90 days were compared. There was no significant difference of the 30-day total cure rate between the adjunctive probiotic group (57.69%) and the metronidazole group (59.57%), with an odds ratio (OR) of 0.97 (95% confidence interval (CI), 0.70 to 1.35, p-value = 0.04), or of the 90-day total cure rate (36.54% vs. 48.94%, OR, 0.75; 95% CI, 0.47 to 1.19; p-value = 0.213). Also, no significant difference of the vaginal and faecal microbial diversity and structure between the two groups at 0, 30 or 90 days were shown based on 16S rRNA sequences. The probiotic species were rarely detected in either the vaginal microbiota or the faecal microbiota after administration which may revealed the cause of noneffective of oral probiotics. No serious adverse effects were reported in the trial. The study indicated that oral probiotic adjunctive treatment did not increase the cure rate of Chinese BV patients compared to metronidazole.
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Affiliation(s)
- Yongke Zhang
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen, China.,Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, China.,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynaecological Disease, Shenzhen, China
| | - Jinli Lyu
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Lan Ge
- BGI-Shenzhen, Shenzhen, China
| | - Liting Huang
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen, China.,Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, China.,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynaecological Disease, Shenzhen, China
| | - Zhuobing Peng
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Yiheng Liang
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen, China.,Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, China.,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynaecological Disease, Shenzhen, China
| | - Xiaowei Zhang
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen, China.,Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, China.,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynaecological Disease, Shenzhen, China
| | - Shangrong Fan
- Department of Obstetrics and Gynaecology, Peking University Shenzhen Hospital, Shenzhen, China.,Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, China.,Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynaecological Disease, Shenzhen, China
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