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Kosič N, Luzar B, Pečlin P, Druškovič M, Rus KR, Županc TA, Sršen TP. Fetal death from SARS-CoV-2 mediated acute placental failure. J Reprod Immunol 2023; 158:103958. [PMID: 37263029 PMCID: PMC10191722 DOI: 10.1016/j.jri.2023.103958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/03/2023] [Accepted: 05/17/2023] [Indexed: 06/03/2023]
Abstract
INTRODUCTION We demonstrate the nonlinear severity of symptoms of SARS-CoV-2 infection in the mother leading to fetal death after acute placental failure. METHODS Careful clinical evaluation, real-time RT-PCR molecular microbiologic testing, isolation of a viable virus, and autopsy with histologic results were used to investigate the possible vertical transmission of SARS-CoV-2 infection from mother to fetus. RESULTS Histologic changes in the placenta correlate with SARS-CoV-2 infection. Total nucleic acid isolated from vaginal swabs, fresh placental tissue, and deparaffinized tissue showed a high viral load of SARS-CoV-2. Complete genome sequencing confirmed the presence of the SARS-CoV-2 Delta variant. DISCUSSION Several methods have been used to confirm SARS-CoV-2-mediated acute placental failure, all of which were conclusive. It should be noted that careful periodic fetal well-being checks are required in women infected with SARS-CoV-2, regardless of the severity of symptoms. Most of the cases described with fetal death occurred in the third trimester.
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Affiliation(s)
- Nadja Kosič
- Department of Pathology, General Hospital Jesenice, Jesenice, Slovenia.
| | - Boštjan Luzar
- Institute of Pathology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Polona Pečlin
- Division of Gynecology and Obstetrics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Mirjam Druškovič
- Division of Gynecology and Obstetrics, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Katarina Resman Rus
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tatjana Avšič Županc
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tanja Premru Sršen
- Division of Gynecology and Obstetrics, University Medical Centre Ljubljana, Ljubljana, Slovenia; Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
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Romanov YA, Kosolapova YA, Zubkov VV, Degtyarev DN, Romanov AY, Dugina TN, Sukhikh GT. Mild or Moderate COVID-19 during Pregnancy Does Not Affect the Content of CD34+ Hematopoietic Stem Cells in Umbilical Cord Blood of Newborns. Bull Exp Biol Med 2022; 173:523-528. [PMID: 36063300 PMCID: PMC9441840 DOI: 10.1007/s10517-022-05575-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Indexed: 11/29/2022]
Abstract
The study included umbilical cord blood samples (n=64) intended for cryogenic storage of hematopoietic stem cells and obtained from patients with a history of mild and moderate forms of COVID-19 during pregnancy. The control group was composed of samples (n=746) obtained from healthy women in labor. A comparative analysis of the volume of cord blood collected, the total leukocyte count, the relative and absolute content of cells with the CD34+/CD45+ phenotype revealed no significant differences between the groups.
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Manandhar S, Pai KSR, Krishnamurthy PT, Kiran AVVVR, Kumari GK. Identification, virtual screening and molecular dynamic analysis of novel TMPRSS2 inhibitors from natural compound database as potential entry-blocking agents in SARS-CoV-2 therapy. Struct Chem 2022;:1-9. [PMID: 35754942 DOI: 10.1007/s11224-022-01991-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/04/2022] [Indexed: 11/28/2022]
Abstract
Scientific insights gained from the severe acute respiratory syndrome (SARS) and middle east respiratory syndrome (MERS) outbreaks have been assisting scientists and researchers in the quest of antiviral drug discovery process against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Coronaviruses and influenza viruses both rely on the host type 2 transmembrane serine protease, TMPRSS2, for entry and propagation. Recent studies report SARS-CoV-2 also uses TMPRSS2 to enter cells. In the current study, we employed structure-based virtual screening of 1,82,651 natural compounds downloaded from the zin database against the homology model of the TMPRSS2 protein, followed by a molecular dynamics-based simulation to identify potential TMPRSS2 hits. The virtual screening yielded 110 hits with docking scores ranging from −8.654 to −6.775 and glide energies ranging from −55.714 to −29.065 kcal/mol. The binding mode analysis revealed that the hit molecules made H-bond, Pi-Pi stacking and salt bridge contacts with the TMPRSS2 active site residues. MD simulations of the top two hits (ZINC000095912839 and ZINC000085597504) revealed to form a stable complex with TMPRSS2, with a minimal RMSD and RMSF fluctuation. Both the hit structures interacted strongly with the Asp180, Gln183, Gly184, Ser186, Gly207 and Gly209, as predicted by Glide XP docking, and formed a significant H-bond interaction with Ser181 in MD simulation. Among these two, ZINC000095912839 was having the most stable binding interaction with TMPRSS2 of the two molecules. The present study successfully identified TMPRSS2 ligands from a database of zinc natural molecules as potential leads for novel SARs-CoV-2 treatment.
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Reagan-Steiner S, Bhatnagar J, Martines RB, Milligan NS, Gisondo C, Williams FB, Lee E, Estetter L, Bullock H, Goldsmith CS, Fair P, Hand J, Richardson G, Woodworth KR, Oduyebo T, Galang RR, Phillips R, Belyaeva E, Yin XM, Meaney-Delman D, Uyeki TM, Roberts DJ, Zaki SR. Detection of SARS-CoV-2 in Neonatal Autopsy Tissues and Placenta. Emerg Infect Dis 2022; 28:510-517. [PMID: 35138244 PMCID: PMC8888232 DOI: 10.3201/eid2803.211735] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Kucuk IG, Aladag E. Young Maternal Death Caused by COVID-19. Euras J Fam Med 2021. [DOI: 10.33880/ejfm.2021100307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Maternal death refers to the death of a woman during pregnancy, during delivery, or within 42 days after the termination of pregnancy, and for any reason exaggerated by the pregnancy condition or pregnancy process regardless of the duration and location of the pregnancy. Starting on 11 March 2020 in Turkey, the COVID-19 pandemic resulted in a total of 5,638,178 confirmed cases and 51,048 deaths. Our case aged 24 years was a young mother having severe weight loss since the beginning of pregnancy because of malnutrition due to depression, smoking, and nausea. The weight loss of the patient, who was infected by COVID-19 in a short while after the last visit in family healthcare, became more severe, the general appearance became worse, and she gave preterm birth in the 30th gestational week. The cardiopulmonary arrest occurred during the delivery. Although necessary interventions were made, the patient was lost on the same day. Since it is a rare case, this case is presented together with a literature review.
Keywords: COVID-19, pandemics, maternal mortality
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Affiliation(s)
| | - Ebru Aladag
- Department of Anesthesiology and Reanimation, Usak University Faculty of Medicine
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Tallarek AC, Urbschat C, Fonseca Brito L, Stanelle-Bertram S, Krasemann S, Frascaroli G, Thiele K, Wieczorek A, Felber N, Lütgehetmann M, Markert UR, Hecher K, Brune W, Stahl F, Gabriel G, Diemert A, Arck PC. Inefficient Placental Virus Replication and Absence of Neonatal Cell-Specific Immunity Upon Sars-CoV-2 Infection During Pregnancy. Front Immunol 2021; 12:698578. [PMID: 34149740 PMCID: PMC8211452 DOI: 10.3389/fimmu.2021.698578] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
Pregnant women have been carefully observed during the COVID-19 pandemic, as the pregnancy-specific immune adaptation is known to increase the risk for infections. Recent evidence indicates that even though most pregnant have a mild or asymptomatic course, a severe course of COVID-19 and a higher risk of progression to diseases have also been described, along with a heightened risk for pregnancy complications. Yet, vertical transmission of the virus is rare and the possibility of placental SARS-CoV-2 infection as a prerequisite for vertical transmission requires further studies. We here assessed the severity of COVID-19 and onset of neonatal infections in an observational study of women infected with SARS-CoV-2 during pregnancy. Our placental analyses showed a paucity of SARS-CoV-2 viral expression ex vivo in term placentae under acute infection. No viral placental expression was detectable in convalescent pregnant women. Inoculation of placental explants generated from placentas of non-infected women at birth with SARS-CoV-2 in vitro revealed inefficient SARS-CoV-2 replication in different types of placental tissues, which provides a rationale for the low ex vivo viral expression. We further detected specific SARS-CoV-2 T cell responses in pregnant women within a few days upon infection, which was undetectable in cord blood. Our present findings confirm that vertical transmission of SARS-CoV-2 is rare, likely due to the inefficient virus replication in placental tissues. Despite the predominantly benign course of infection in most mothers and negligible risk of vertical transmission, continuous vigilance on the consequences of COVID-19 during pregnancy is required, since the maternal immune activation in response to the SARS-CoV2 infection may have long-term consequences for children’s health.
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Affiliation(s)
- Ann-Christin Tallarek
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Christopher Urbschat
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Luis Fonseca Brito
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | | | - Susanne Krasemann
- Institute of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Giada Frascaroli
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Kristin Thiele
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Agnes Wieczorek
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Nadine Felber
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Marc Lütgehetmann
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Udo R Markert
- Placenta Lab, Department of Obstetrics, Jena University Hospital, Jena, Germany
| | - Kurt Hecher
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfram Brune
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Felix Stahl
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Gülsah Gabriel
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Anke Diemert
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Petra Clara Arck
- Department of Obstetrics and Fetal Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
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