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Chojnacka K, Skrzypczak D, Izydorczyk G, Mikula K, Szopa D, Witek-Krowiak A. Antiviral Properties of Polyphenols from Plants. Foods 2021; 10:foods10102277. [PMID: 34681326 PMCID: PMC8534698 DOI: 10.3390/foods10102277] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/03/2021] [Accepted: 09/21/2021] [Indexed: 02/06/2023] Open
Abstract
Polyphenols are active substances against various types of viral infections. Researchers have characterized methods of how to isolate polyphenols without losing their potential to formulate pharmaceutical products. Researchers have also described mechanisms against common viral infections (i.e., influenza, herpes, hepatitis, rotavirus, coronavirus). Particular compounds have been discussed together with the plants in the biomass in which they occur. Quercetin, gallic acid and epigallocatechin are exemplary compounds that inhibit the growth cycle of viruses. Special attention has been paid to identify plants and polyphenols that can be efficient against coronavirus infections. It has been proven that polyphenols present in the diet and in pharmaceuticals protect us from viral infections and, in case of infection, support the healing process by various mechanisms, i.e., they block the entry into the host cells, inhibit the multiplication of the virus, seal blood vessels and protect against superinfection.
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Hospitalizations for vaccine-preventable infections among pediatric hematopoietic cell transplantation recipients in the first 5 years after transplantation. Bone Marrow Transplant 2021; 56:2656-2663. [PMID: 34155358 DOI: 10.1038/s41409-021-01373-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/11/2021] [Accepted: 06/01/2021] [Indexed: 11/08/2022]
Abstract
Despite recommendations for vaccination after hematopoietic cell transplantation (HCT), immunization rates remain low leaving children at high risk for vaccine preventable infections (VPIs). However, the burden from VPIs in pediatric HCT recipients is not well known. We describe the prevalence, risk factors, and outcomes of VPI-associated hospitalizations at centers participating in the Pediatric Health Information System database. Children <18 years who underwent allogeneic or autologous-HCT between 1/1/2010-31/12/2018, were identified and prevalence of overall VPI and of each infection were determined at five time-points within 5 years post-HCT. In total, 684 of 9591 pediatric HCT recipients had a VPI-associated hospitalization, most frequently in the first 6-12 months, for an overall prevalence of 7.1% (95% CI: 6.6-7.7%). Influenza, varicella, and invasive pneumococcal infections were the most frequent. Multivariable analyses identified younger age (OR = 0.96 [95% CI: 0.93-0.99]; p = 0.013), primary immune deficiency (PID) (OR = 1.78 [95% CI: 1.11-2.84]; p = 0.016), and GVHD (OR = 1.62 [95% CI: 1.05-2.48]; p = 0.028) as independent risk factors during the initial HCT-hospitalization. Children with VPI had longer duration of hospitalization (55[51] vs 36[24] days, p < 0.001), higher rates of ICU admission (42 vs 26%, p < 0.001), and mortality (11% [n = 17) vs 6% [n = 519]; p = 0.003). Continued efforts to improve vaccination early post-HCT are warranted.
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Abstract
Viral acute gastroenteritis (AGE) is common and afflicts people of all ages. Nonviral causes of AGE are less common. Norovirus is a leading cause of sporadic cases and outbreaks of AGE across all ages. Universal rotavirus vaccination of infants has reduced frequency and severity of rotavirus AGE cases in children and indirectly reduced cases in older adults. Severe illness is more likely in persons at age extremes or with immunocompromising conditions. Viral causes of AGE can lead to protracted diarrheal illness in immunocompromised persons. Nucleic acid amplification tests are changing diagnostic testing algorithms.
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Affiliation(s)
- Jeffery L Meier
- Division of Infectious Diseases, Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City Veterans Affairs Healthcare System, SW34 GH, 200 Hawkins Dr., Iowa City, IA 52242, USA.
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Huang H, Liao D, Zhou G, Zhu Z, Cui Y, Pu R. Antiviral activities of resveratrol against rotavirus in vitro and in vivo. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 77:153230. [PMID: 32682225 DOI: 10.1016/j.phymed.2020.153230] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 03/26/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Rotavirus (RV) is the primary causative agent for viral gastroenteritis among infants and young children worldwide. Currently, no clinically approved and effective antiviral drug for the treatment of RV infection is available. PURPOSE We investigated the potential anti-RV activity of resveratrol and underlying mechanisms by which resveratrol acted against RV. METHODS The anti-RV activity of resveratrol in vitro was evaluated using plaque reduction assays. The effects of resveratrol on yield of virion progeny, viral polyprotein expression and genomic RNA synthesis were respectively investigated using enzyme-linked immunosorbent assays, western blotting and qRT-PCR assays. Further, we also measured the antiviral effect of resveratrol by evaluation of antigen clearance and assessment of changes in proinflammatory cytokines/chemokines in RV-infected neonatal mouse model. RESULTS Our results indicated that 20 μM of resveratrol significantly inhibited RV replication in Caco-2 cell line by suppressing RV RNA synthesis, protein expression, viroplasm plaque formation, progeny virion production, and RV-induced cytopathy independent of the different strains and cell lines of RV that we used. Analysis of the effect of time post-addition of resveratrol indicated that its application inhibited early processes in the RV replication cycle. Further study of the underlying mechanism of anti-RV activity indicated that resveratrol inhibited RV replication by suppressing expression of heat-shock protein 90 (HSP90) mRNA and protein, and that the effect occurred in a dose-dependent manner. Overexpression of HSP90 was found to have attenuated the inhibitory effect of resveratrol on RV replication. Interestingly, the application of resveratrol were found to down-regulate the level of inhibition of RV-mediated MEK1/2 and ERK phosphorylation. Using a RV-infected suckling mice model, we found that application of resveratrol significantly lessened the severity of diarrhea, decreased viral titers, and relieved associated symptoms. Levels of mRNA expression of interleukin-2, interleukin-10, tumor necrosis factor-α, interferon-γ, macrophage inflammatory protein 1, and monocyte chemotactic protein-1 were all found to have been sharply reduced in intestinal tissue from mice which had been treated with resveratrol (10 or 20 mg/kg) after RV infection (p < 0.05). CONCLUSION These findings implied that resveratrol exhibits antiviral activity and could be a promising treatment for rotavirus infection.
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Affiliation(s)
- Haohai Huang
- Department of Clinical Pharmacy, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China; Central Laboratory, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Dan Liao
- Department of Gynaecology, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Guanghui Zhou
- Department of Rehabilitation medicine, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Zhu Zhu
- Sino-American Cancer Research Institute, Guangdong Medical University, Dongguan, Guangdong, China; Scientific Research Platform, Guangdong Medical University, Dongguan, Guangdong, China
| | - Yejia Cui
- Central Laboratory, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China; Department of Laboratory, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Rong Pu
- Department of Laboratory, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China.
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Czyzewski K, Dziedzic M, Salamonowicz M, Fraczkiewicz J, Zajac-Spychala O, Zaucha-Prazmo A, Gozdzik J, Galazka P, Bartoszewicz N, Demidowicz E, Styczynski J. Epidemiology, Outcome and Risk Factors Analysis of Viral Infections in Children and Adolescents Undergoing Hematopoietic Cell Transplantation: Antiviral Drugs Do Not Prevent Epstein-Barr Virus Reactivation. Infect Drug Resist 2019; 12:3893-3902. [PMID: 31908501 PMCID: PMC6925545 DOI: 10.2147/idr.s224291] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/05/2019] [Indexed: 12/28/2022] Open
Abstract
Objective The analysis of epidemiology, risk factors and outcome of viral infections in children and adolescents after hematopoietic cell transplantation (HCT). Methods In this multicenter nationwide study a total of 971 HCT procedures (741 allo-HCT; 230 auto-HCT) over a period of 6 years were analyzed. Results During this period 801 episodes of viral infections were diagnosed in 442 patients. The incidence of viral infections was 57.9% in allo-HCT and 4.8% in auto-HCT patients. The most frequent infections after allo-HCT were caused by cytomegalovirus (CMV), polyoma BK virus (BKV) and Epstein-Barr virus (EBV). The majority of infections occurred within the first 4 months after allo-HCT and over 80% required pharmacotherapy or symptomatic therapy. The median time of treatment of specific viral infection ranged from 7 (for EBV) to 24 (for CMV) days. The highest mortality was observed in case of CMV infection. The risk factors for viral infections were allo-HCT, acute leukemia, acute and chronic graft versus host disease (a/cGVHD), and matched unrelated donor (MUD)/mismatched unrelated donor (MMUD)-HCT. The risk factor for death from viral infection were CMV-IgG seropositivity in acute lymphoblastic leukemia recipient, and MUD/MMUD-HCT. The incidence of EBV infection requiring pre-emptive treatment with rituximab in allo-HCT children was 19.3%. In 30.8% cases of EBV infection, these episodes were preceded by other viral infection and treated with antivirals, which did not prevent development of EBV-DNA-emia with need of rituximab treatment in 81.5% cases. In 47.7% of these cases, GVHD was a factor enabling development of significant EBV-DNA-emia during antiviral therapy of other infection. Conclusion We have shown that antiviral drugs do not prevent EBV reactivation in allo-HCT pediatric patients.
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Affiliation(s)
- Krzysztof Czyzewski
- Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Magdalena Dziedzic
- Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Malgorzata Salamonowicz
- Department of Pediatric Transplantation, Oncology and Hematology, Medical University, Wroclaw, Poland
| | - Jowita Fraczkiewicz
- Department of Pediatric Transplantation, Oncology and Hematology, Medical University, Wroclaw, Poland
| | - Olga Zajac-Spychala
- Department of Pediatric Oncology, Hematology and Transplantology, University of Medical Sciences, Poznan, Poland
| | - Agnieszka Zaucha-Prazmo
- Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, Medical University, Lublin, Poland
| | - Jolanta Gozdzik
- Stem Cell Transplant Center, University Children's Hospital, Department of Clinical Immunology and Transplantology, Jagiellonian University Collegium Medicum, Krakow, Poland
| | - Przemyslaw Galazka
- Department of General and Oncological Surgery for Children and Adolescents, Collegium Medicum, Nicolaus Copernicus University Torun, Bydgoszcz, Poland
| | - Natalia Bartoszewicz
- Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Ewa Demidowicz
- Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
| | - Jan Styczynski
- Department of Pediatric Hematology and Oncology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland
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Kizilbash SJ, Sudel B, Anderson JA, Verghese PS. Use of oral immunoglobulins to treat diarrhea in pediatric kidney transplant recipients-Single-center experience and review of the literature. Pediatr Transplant 2019; 23:e13582. [PMID: 31515921 DOI: 10.1111/petr.13582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/07/2019] [Accepted: 08/27/2019] [Indexed: 12/22/2022]
Abstract
Effective treatment modalities for diarrhea in solid organ transplant recipients are lacking. We evaluated the effect of oral IgG on clinical course of diarrhea in pediatric kidney transplant recipients. We retrospectively studied all pediatric kidney transplant recipients who required hospitalization for diarrhea between January 1, 2015, and December 31, 2017. We divided the recipients into two groups based on whether they had received oral IgG to treat diarrhea. Sixteen pediatric kidney transplant recipients required hospitalization for diarrhea over 3 years. Median age at admission was 9.25 years (IQR:12.54). Fifty-six percent of recipients were male, and 81% were white. Four patients received oral IgG for prolonged diarrhea. Oral IgG recipients had longer diarrheal duration before admission (median (days) 14.5 vs1; P .02), a trend for greater weight loss at admission (median (kilogram) 1.4 vs 0.2; P .3), and a trend for higher acute kidney injury (>75% reduction in glomerular filtration rate: 100% vs 42%; P .36). Diarrhea resolved completely in 3 (75%) oral IgG recipients and 7 (58%) non-oral IgG patients by discharge (P .99). One oral IgG recipient showed partial improvement but also had biopsy evidence of mycophenolate-induced colitis. All patients tolerated oral IgG well. No patients required re-hospitalization within 30 days of discharge. Oral IgG may be used safely and effectively to treat prolonged diarrhea in pediatric kidney transplant recipients. A larger, randomized, prospective study is needed to further assess the efficacy of oral IgG in the treatment of diarrhea.
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Affiliation(s)
- Sarah J Kizilbash
- Department of Pediatric Nephrology, University of Minnesota, Minneapolis, Minnesota
| | - Boris Sudel
- Department of Pediatric Gastroenterology, University of Minnesota, Minneapolis, Minnesota
| | - Jessica A Anderson
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Priya S Verghese
- Department of Pediatric Nephrology, University of Minnesota, Minneapolis, Minnesota
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Jaiswal SR, Bhakuni P, Chakrabarti A, Chakrabarti S. Rotavirus infection following post‐transplantation cyclophosphamide based haploidentical hematopoietic cell transplantation in children is associated with hemophagocytic syndrome and high mortality. Transpl Infect Dis 2019; 21:e13136. [DOI: 10.1111/tid.13136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/17/2019] [Accepted: 06/22/2019] [Indexed: 11/28/2022]
Affiliation(s)
- Sarita Rani Jaiswal
- Cellular Therapy and Immunology Manashi Chakrabarti Foundation Kolkata India
- Department of Blood and Marrow Transplantation Dharamshila Narayana Superspeciality Hospital and Research Centre New Delhi India
| | - Prakash Bhakuni
- Cellular Therapy and Immunology Manashi Chakrabarti Foundation Kolkata India
- Department of Blood and Marrow Transplantation Dharamshila Narayana Superspeciality Hospital and Research Centre New Delhi India
| | - Aditi Chakrabarti
- Cellular Therapy and Immunology Manashi Chakrabarti Foundation Kolkata India
| | - Suparno Chakrabarti
- Cellular Therapy and Immunology Manashi Chakrabarti Foundation Kolkata India
- Department of Blood and Marrow Transplantation Dharamshila Narayana Superspeciality Hospital and Research Centre New Delhi India
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Aulner N, Danckaert A, Ihm J, Shum D, Shorte SL. Next-Generation Phenotypic Screening in Early Drug Discovery for Infectious Diseases. Trends Parasitol 2019; 35:559-570. [PMID: 31176583 DOI: 10.1016/j.pt.2019.05.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 12/30/2022]
Abstract
Cell-based phenotypic screening has proven to be valuable, notably in recapitulating relevant biological conditions, for example, the host cell/pathogen niche. However, the corresponding methodological complexity is not readily compatible with high-throughput pipelines, and fails to inform either molecular target or mechanism of action, which frustrates conventional drug-discovery roadmaps. We review the state-of-the-art and emerging technologies that suggest new strategies for harnessing value from the complexity of phenotypic screening and augmenting powerful utility for translational drug discovery. Advances in cellular, molecular, and bioinformatics technologies are converging at a cutting edge where the complexity of phenotypic screening may no longer be considered a hinderance but rather a catalyst to chemotherapeutic discovery for infectious diseases.
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Affiliation(s)
- Nathalie Aulner
- Institut Pasteur Paris, UTechS-PBI/Imagopole, 25-28 rue du Docteur Roux, 75015, France
| | - Anne Danckaert
- Institut Pasteur Paris, UTechS-PBI/Imagopole, 25-28 rue du Docteur Roux, 75015, France
| | - JongEun Ihm
- Institut Pasteur Paris, UTechS-PBI/Imagopole, 25-28 rue du Docteur Roux, 75015, France
| | - David Shum
- Institut Pasteur Korea, 16 Daewangpangyo-ro 712 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea
| | - Spencer L Shorte
- Institut Pasteur Paris, UTechS-PBI/Imagopole, 25-28 rue du Docteur Roux, 75015, France; Institut Pasteur Korea, 16 Daewangpangyo-ro 712 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea.
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