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Kaneyasu Y, Shigeishi H, Niitani Y, Takemoto T, Sugiyama M, Ohta K. Manual toothbrushes, self-toothbrushing, and replacement duration to remove dental plaque and improve gingival health: A scoping review from recent research. J Dent 2024; 148:105240. [PMID: 39038528 DOI: 10.1016/j.jdent.2024.105240] [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: 05/13/2024] [Revised: 07/04/2024] [Accepted: 07/12/2024] [Indexed: 07/24/2024] Open
Abstract
OBJECTIVE To investigate characteristics of manual toothbrushes, self-toothbrushing methods, and replacement duration of manual toothbrushes that effectively remove dental plaque, reduce gingivitis, and promote gingival health. STUDY DATA AND SOURCES PubMed-MEDLINE, Scopus and Central Register Cochrane of Controlled trials (CENTRAL) were searched for randomized control trials (RCTs) from 01 January 2018 to 12 December 2023. Articles were subjected for including participants aged six years and older with a study duration of at least four weeks to investigate the efficacy of manual toothbrushes used self-toothbrushing. To investigate the appropriate time to replace manual toothbrushes, this study was focused on the physical properties of the bristles and changes in the microorganisms present in the bristles over time. STUDY SELECTION Of 1520 retrieved articles, 26 studies were included after screening. The total number of manual toothbrushes was 40 and 5 kinds of self-toothbrushing techniques were selected in the review. 4 studies investigated the changes the physical properties bristles of manual toothbrushes. CONCLUSIONS Among manual toothbrushes, the cross-angle and indicator bristles were found to significantly improve dental plaque index and gingival condition. Most toothbrushes with soft bristles had a trend of superior dental plaque removal and gingivitis improvement efficacy. Toothbrush with end-round shape bristles tip has tended to reduce the dental plaque and gingival index scores. Studies reported that brushing twice a day for at least two minutes using the Bass method had a positive effect on the dental plaque and gingival index. Further research is required to investigate the relationships between property physical bristle and clinical intraoral indices to clarify the replacement duration of manual toothbrushes. CLINICAL SIGNIFICANCE The findings of this study could guide people's daily self-brushing habits, thereby aiding the prevention of periodontal disease. Moreover, our findings suggest the need for strategic clinical trial designs to verify the ideal timing to replace manual toothbrushes.
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Affiliation(s)
- Yoshino Kaneyasu
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
| | - Hideo Shigeishi
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
| | - Yoshie Niitani
- Department of Oral Health Management, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Toshinobu Takemoto
- Department of Oral Health Management, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Masaru Sugiyama
- Department of Oral Health Sciences, Faculty of Health Care Sciences, Takarazuka University of Medical and Health Care, Japan
| | - Kouji Ohta
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan
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Shigeishi H, Hamada N, Kaneyasu Y, Niitani Y, Takemoto T, Ohta K. Prevalence of oral Capnocytophaga species and their association with dental plaque accumulation and periodontal inflammation in middle‑aged and older people. Biomed Rep 2024; 20:99. [PMID: 38765863 PMCID: PMC11099601 DOI: 10.3892/br.2024.1787] [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: 02/04/2024] [Accepted: 03/29/2024] [Indexed: 05/22/2024] Open
Abstract
Capnocytophaga species are commonly found in human oral microbiome. The aim of the present study was to understand the association of the prevalence of oral Capnocytophaga species with oral hygiene and periodontal inflammation. A total of 136 patients (median age 72 years) who visited the Hiroshima University Hospital (Hiroshima, Japan) between April 2021 and June 2023 were enrolled. Swab samples were obtained from the tongue surface. DNA from Capnocytophaga species (C. ochracea and C. sputigena) was detected by real-time PCR analysis. Dental plaque accumulation was observed to assess the oral hygiene condition of participants. Additionally, clinical periodontal inflammation was assessed with periodontal inflamed surface area (PISA) scores. Clinical confounding factors such as age, sex, lifestyle-related disease, remaining teeth and denture wearing between Capnocytophaga species-positive and -negative groups were adjusted with a propensity score matching method. Mann-Whitney U and χ2 or Fisher's exact test were employed for statistical analysis. The prevalence rate was 67.6% for oral C. ochracea and 83.1% for C. sputigena. C. ochracea-positive participants showed significantly higher plaque control record scores (an indicator of dental plaque accumulation) than C. ochracea-negative participants (P=0.03). Additionally, C. ochracea/C. sputigena dual-positive participants exhibited significantly higher plaque control record and PISA scores than non-dual-positive participants (P=0.01 and P=0.04, respectively). Propensity score matching was conducted in the C. ochracea/C. sputigena dual-positive group and the non-dual-positive group for adjustment of clinical factors, resulting in 51 matched patient pairs. C. ochracea/C. sputigena dual-positive participants had significantly higher plaque control record scores than non-dual-positive participants (P=0.02). The present results suggest that the prevalence of both oral C. ochracea and C. sputigena is associated with poor oral hygiene in middle-aged and older people.
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Affiliation(s)
- Hideo Shigeishi
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Natsuki Hamada
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yoshino Kaneyasu
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Yoshie Niitani
- Department of Oral Health Management, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Toshinobu Takemoto
- Department of Oral Health Management, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
| | - Kouji Ohta
- Department of Public Oral Health, Program of Oral Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
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Aldhubaiei H, Alzuabi MM, Marafi Y, Alzalzalah F, Aljalahmah M, Natto ZS. Association of Periodontitis and Various Genotypes of Human Papillomavirus in Oral Rinse Specimens. Cureus 2024; 16:e60190. [PMID: 38868258 PMCID: PMC11168020 DOI: 10.7759/cureus.60190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Abstract
Objectives To evaluate the relationship between the presence of human papillomavirus (HPV) genotypes in oral rinse samples and periodontitis. Materials and methods This cross-sectional study utilized data from the National Health and Nutrition Examination Survey (NHANES) conducted in 2013-2014. The primary outcome was the periodontal status, categorized as either no periodontitis or mild periodontitis (combined) versus moderate to severe periodontitis (combined). The primary variable of interest was the presence of different HPV types in oral rinse specimens. Several confounders were selected based on previous evidence that demonstrated a potential association between HPV infectivity and periodontal disease. Results The final sample included 3103 participants. HPV genotypes 6, 35, 39, 55, 59, 71, 72, and 73 showed a statistically significant association with at least one of the periodontal statuses (p-value < 0.05). The presence of any HPV genotype was highly significantly associated with periodontal status, with a p-value of <0.001. Multivariable logistic regression analysis revealed statistically significant associations of HPV 6 and HPV 16 with periodontitis, adjusted for age, gender, diabetes, smoking, race, federal poverty level, last dental visit, and education level. Conclusion Our study highlights a potential link between periodontitis and specific HPV genotypes, such as HPV 6 and HPV 16, in oral rinse specimens. This suggests a complex interplay between periodontal disease and oral HPV infections, underscoring the need for further research to address public health concerns and inform preventive and treatment strategies. Clinical relevance Identifying a link between periodontitis and specific HPV genotypes, such as HPV 6 and HPV 16, in oral rinse samples could prompt early screening and tailored treatment approaches. This underscores the importance of oral health promotion and targeted interventions to address both conditions and improve overall patient outcomes.
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Affiliation(s)
| | | | | | | | | | - Zuhair S Natto
- Dental Public Health, King Abdulaziz University, Jeddah, SAU
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Castañeda-Avila MA, Pérez CM, Vivaldi J, Díaz-Toro EC, Ramos-Cartagena JM, Andriankaja OM, Ortiz AP. Oral Inflammation and Human Papilloma Virus Association among Hispanics. Int J Dent 2023; 2023:7247976. [PMID: 38111755 PMCID: PMC10727800 DOI: 10.1155/2023/7247976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 09/11/2023] [Accepted: 10/30/2023] [Indexed: 12/20/2023] Open
Abstract
Background Identifying factors related to persistent human papillomavirus (HPV) infection is essential to reduce the incidence of HPV-related cancers. Objective To evaluate whether gingival/periodontal inflammation is associated with oral HPV infection. Methods This cross-sectional study (n = 740) uses data from the follow-up visit of the San Juan Overweight Adults Longitudinal Study, which recruited overweight/obese adults aged 40-65 from Puerto Rico. Participants completed a dental examination and two interviews (face-to-face/ACASI) and provided oral rinse samples for HPV detection. Oral inflammation was assessed using two definitions: (1) the number of sites with bleeding on probing (BOP), and (2) the number of teeth with probing pocket depths (PPD) ≥ 4 mm and BOP. Multivariate logistic regression was used to assess the association between oral inflammation and oral HPV. Results Nearly three-quarters (72%) of participants were female, and 68% had 50 years or older. Participants with HPV had a higher mean number of sites with BOP (15.5 vs. 10.1) and teeth with PPD ≥ 4 mm and BOP (8.5 vs. 3.2) than participants without HPV (p < 0.05). After adjusting for sex, age, income, and the number of oral sex partners, the odds of having an oral HPV infection increased by 3% (95% confidence interval (CI): 1.00-1.06) for any additional sites with BOP and 5% (95% CI: 1.02-1.09) for any other teeth with PPD ≥ 4 mm and BOP. Conclusions We found that oral inflammation was associated with oral HPV infection among adults in Puerto Rico. Future studies need to further investigate the underlying mechanisms.
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Affiliation(s)
- Maira A. Castañeda-Avila
- Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, Massachusetts, USA
| | - Cynthia M. Pérez
- Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico, USA
| | - José Vivaldi
- School of Dental Medicine, Ana G. Méndez University, San Juan, Puerto Rico, USA
| | - Elba C. Díaz-Toro
- Department of Restorative Sciences, School of Dental Medicine, University of Puerto Rico, San Juan, Puerto Rico, USA
- Hospital of the University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, USA
| | - Jeslie M. Ramos-Cartagena
- Division of Cancer Control and Population Sciences, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, USA
| | - Oelisoa M. Andriankaja
- Center for Clinical Research and Health Promotion, School of Dental Medicine, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico, USA
| | - Ana P. Ortiz
- Department of Biostatistics and Epidemiology, Graduate School of Public Health, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico, USA
- Division of Cancer Control and Population Sciences, University of Puerto Rico Comprehensive Cancer Center, San Juan, Puerto Rico, USA
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Khalil W, Alaa El Din F, Jaffal M, Kanj AEH, Nabbouh A, Kurban M, Rahal EA, Matar GM. Prevalence of Human Papillomavirus (HPV)-16 in Different Dental Infections in the Lebanese Population. Cureus 2023; 15:e38809. [PMID: 37303381 PMCID: PMC10251111 DOI: 10.7759/cureus.38809] [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] [Accepted: 05/09/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Dental infections, which are the main cause of tooth loss, are known to be caused by bacteria. However, recent research suggests that other organisms, such as viruses, may also play a role. In this study, we aim to detect the presence of human papillomavirus (HPV)-16 and assess its prevalence in tissues infected with various dental infections, including aggressive and chronic periodontitis, pericoronitis, and periapical infection, as well as healthy gingival tissues, saliva, and gingival crevicular fluid, for comparison. METHODS A cross-sectional study including 124 adult healthy patients presenting with dental infections requiring dental extractions were conducted to assess the prevalence of HPV-16 in saliva, infected, and healthy tissues using quantitative polymerase chain reaction (PCR) tests. Samples were collected and a categorical scale was used for the prevalence. Statistical analyses were performed using Chi-square for the prevalence of HPV-16. RESULTS Among the HPV-16-positive PCR cases, the prevalence of HPV-16 was highest in periapical infection tissues as compared to chronic periodontitis, aggressive periodontitis, pericoronitis, and control tissues. CONCLUSION The prevalence of HPV-16 in periapical infection samples was the highest among the studied dental infection samples. Thus, a primary conclusion can be drawn about the presence of an association between HPV-16 and the occurrence of periapical infection.
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Affiliation(s)
- Wael Khalil
- Oral and Maxillofacial Surgery Department, Lebanese University, Beirut, LBN
| | - Ferdos Alaa El Din
- Department of Microbiology, College of Dentistry, Al-Ayen University, Thi-Qar, IRQ
| | - Marwa Jaffal
- Restorative and Esthetic Dentistry, Saint Joseph University, Beirut, LBN
| | - Abd El Hadi Kanj
- Department of Orthodontics, College of Dentistry, Al-Ayen University, Thi-Qar, IRQ
| | - Ali Nabbouh
- Office of Graduate Studies in Biomedical Sciences, American University of Beirut, Beirut, LBN
| | - Mazen Kurban
- Dermatopathology, American University of Beirut Medical Center, Beirut, LBN
| | - Elias A Rahal
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, LBN
| | - Ghassan M Matar
- Department of Experimental Pathology, Immunology, and Microbiology, American University of Beirut, Beirut, LBN
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Teles F, Collman RG, Mominkhan D, Wang Y. Viruses, periodontitis, and comorbidities. Periodontol 2000 2022; 89:190-206. [PMID: 35244970 DOI: 10.1111/prd.12435] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Seminal studies published in the 1990s and 2000s explored connections between periodontal diseases and systemic conditions, revealing potential contributions of periodontal diseases in the initiation or worsening of systemic conditions. The resulting field of periodontal medicine led to the publication of studies indicating that periodontal diseases can influence the risk of systemic conditions, including adverse pregnancy outcomes, cardiovascular and respiratory diseases, as well as Alzheimer disease and cancers. In general, these studies hypothesized that the periodontal bacterial insult and/or the associated proinflammatory cascade could contribute to the pathogenesis of these systemic diseases. While investigations of the biological basis of the connections between periodontal diseases and systemic conditions generally emphasized the bacteriome, it is also biologically plausible, under an analogous hypothesis, that other types of organisms may have a similar role. Human viruses would be logical "suspects" in this role, given their ubiquity in the oral cavity, association with periodontal diseases, and ability to elicit strong inflammatory response, compromise immune responses, and synergize with bacteria in favor of a more pathogenic microbial consortium. In this review, the current knowledge of the role of viruses in connecting periodontal diseases and systemic conditions is examined. We will also delve into the mechanistic basis for such connections and highlight the importance of those relationships in the management and treatment of patients.
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Affiliation(s)
- Flavia Teles
- Department of Basic and Translational Sciences, School of Dental Medicine, Center for Innovation & Precision Dentistry, School of Dental Medicine & School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ronald G Collman
- Pulmonary, Allergy and Critical Care Division, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Dana Mominkhan
- Department of Endodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Yu Wang
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Mougeot JLC, Beckman MF, Langdon HC, Lalla RV, Brennan MT, Bahrani Mougeot FK. Haemophilus pittmaniae and Leptotrichia spp. Constitute a Multi-Marker Signature in a Cohort of Human Papillomavirus-Positive Head and Neck Cancer Patients. Front Microbiol 2022; 12:794546. [PMID: 35116012 PMCID: PMC8803733 DOI: 10.3389/fmicb.2021.794546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/10/2021] [Indexed: 12/25/2022] Open
Abstract
ObjectivesHuman papillomavirus (HPV) is a known etiological factor of oropharyngeal head and neck cancer (HNC). HPV positivity and periodontal disease have been associated with higher HNC risk, suggesting a role for oral bacterial species. Our objective was to determine oral microbiome profiles in HNC patients (HPV-positive and HPV-negative) and in healthy controls (HC).MethodsSaliva samples and swabs of buccal mucosa, supragingival plaque, and tongue were collected from HNC patients (N = 23 patients, n = 92 samples) before cancer therapy. Next-generation sequencing (16S-rRNA gene V3–V4 region) was used to determine bacterial taxa relative abundance (RA). β-Diversities of HNC HPV+ (N = 16 patients, n = 64 samples) and HNC HPV– (N = 7 patients, n = 28 samples) groups were compared using PERMANOVA (pMonte Carlo < 0.05). LEfSe discriminant analysis was performed to identify differentiating taxa (Log LDA > 2.0). RA differences were analyzed by Mann–Whitney U-test (α = 0.05). CombiROC program was used to determine multi-marker bacterial signatures. The Microbial Interaction Network Database (MIND) and LitSuggest online tools were used for complementary analyses.ResultsHNC vs. HC and HNC HPV+ vs. HNC HPV– β-diversities differed significantly (pMonte Carlo < 0.05). Streptococcus was the most abundant genus for HNC and HC groups, while Rothia mucilaginosa and Haemophilus parainfluenzae were the most abundant species in HNC and HC patients, respectively, regardless of antibiotics treatment. LEfSe analysis identified 43 and 44 distinctive species for HNC HPV+ and HNC HPV– groups, respectively. In HNC HPV+ group, 26 periodontal disease-associated species identified by LefSe had a higher average RA compared to HNC HPV– group. The significant species included Alloprevotella tannerae, Fusobacterium periodonticum, Haemophilus pittmaniae, Lachnoanaerobaulum orale, and Leptotrichia spp. (Mann–Whitney U-test, p < 0.05). Of 43 LEfSe-identified species in HPV+ group, 31 had a higher RA compared to HPV– group (Mann–Whitney U-test, p < 0.05). MIND analysis confirmed interactions between Haemophilus and Leptotrichia spp., representing a multi-marker signature per CombiROC analysis [area under the curve (AUC) > 0.9]. LitSuggest correctly classified 15 articles relevant to oral microbiome and HPV status.ConclusionOral microbiome profiles of HNC HPV+ and HNC HPV– patients differed significantly regarding periodontal-associated species. Our results suggest that oral bacterial species (e.g., Leptotrichia spp.), possessing unique niches and invasive properties, coexist with HPV within HPV-induced oral lesions in HNC patients. Further investigation into host–microbe interactions in HPV-positive HNC patients may shed light into cancer development.
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Affiliation(s)
- Jean-Luc C. Mougeot
- Carolinas Medical Center—Atrium Health, Charlotte, NC, United States
- *Correspondence: Jean-Luc C. Mougeot,
| | | | - Holden C. Langdon
- Carolinas Medical Center—Atrium Health, Charlotte, NC, United States
| | - Rajesh V. Lalla
- Section of Oral Medicine–University of Connecticut Health, Farmington, CT, United States
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Kato I, Zhang J, Sun J. Bacterial-Viral Interactions in Human Orodigestive and Female Genital Tract Cancers: A Summary of Epidemiologic and Laboratory Evidence. Cancers (Basel) 2022; 14:425. [PMID: 35053587 PMCID: PMC8773491 DOI: 10.3390/cancers14020425] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/07/2022] [Accepted: 01/11/2022] [Indexed: 02/04/2023] Open
Abstract
Infectious agents, including viruses, bacteria, fungi, and parasites, have been linked to pathogenesis of human cancers, whereas viruses and bacteria account for more than 99% of infection associated cancers. The human microbiome consists of not only bacteria, but also viruses and fungi. The microbiome co-residing in specific anatomic niches may modulate oncologic potentials of infectious agents in carcinogenesis. In this review, we focused on interactions between viruses and bacteria for cancers arising from the orodigestive tract and the female genital tract. We examined the interactions of these two different biological entities in the context of human carcinogenesis in the following three fashions: (1) direct interactions, (2) indirect interactions, and (3) no interaction between the two groups, but both acting on the same host carcinogenic pathways, yielding synergistic or additive effects in human cancers, e.g., head and neck cancer, liver cancer, colon cancer, gastric cancer, and cervical cancer. We discuss the progress in the current literature and summarize the mechanisms of host-viral-bacterial interactions in various human cancers. Our goal was to evaluate existing evidence and identify gaps in the knowledge for future directions in infection and cancer.
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Affiliation(s)
- Ikuko Kato
- Department of Oncology and Pathology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Jilei Zhang
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL 60612, USA;
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Jun Sun
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, IL 60612, USA;
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL 60612, USA
- UIC Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA
- Jesse Brown VA Medical Center, Chicago, IL 60612, USA
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Lignosulfonate Rapidly Inactivates Human Immunodeficiency and Herpes Simplex Viruses. MEDICINES 2021; 8:medicines8100056. [PMID: 34677485 PMCID: PMC8538131 DOI: 10.3390/medicines8100056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/12/2021] [Accepted: 09/16/2021] [Indexed: 01/15/2023]
Abstract
Background: Very few studies of the antiviral potential of lignosulfonates have been published. With the aim of oral application, among various groups of natural products, the relative antiviral potency of lignosulfonate and its ability to rapidly inactivate viruses were investigated. Methods: As target cells, MT-4 cells in suspension and attached Vero cells were used for infections with human immunodeficiency virus (HIV) and human herpes simplex type-1 virus (HSV). Mock- or virus-infected cells were incubated for 3–5 days with various concentrations of test samples, and the viable cell number was determined with the MTT method. For the shorter exposure experiments, higher titers of HIV or HSV were exposed to test samples for 10 or 3 min, diluted to a normal multiplicity of infection (MOI), and applied to the cells. Antiviral activity was quantified by using the chemotherapy index. Results: In the long-exposure system, lignosulfonates showed comparable anti-HIV activity with those of AZT, ddC, and sulfated polysaccharides, and it exceeded those of hundreds of tannins and flavonoids. When the exposure time was shortened, the chemotherapeutic index of the lignosulfonates for HIV was increased 27-fold. At a physiological pH, lignosulfonate showed higher anti-HIV activity than commercial alkali-lignin, dealkali-lignin, and humic acid, possibly due to the higher solubility and purity. Conclusions: With their rapid virus-inactivation capabilities, lignosulfonates may be useful for the prevention or treatment of virally induced oral diseases.
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Wu S, Ding X, Kong Y, Acharya S, Wu H, Huang C, Liang Y, Nong X, Chen H. The feature of cervical microbiota associated with the progression of cervical cancer among reproductive females. Gynecol Oncol 2021; 163:348-357. [PMID: 34503848 DOI: 10.1016/j.ygyno.2021.08.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/09/2021] [Accepted: 08/17/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The aim of this study was to characterize cervical microbiome feature of reproductive-age women in the progression of squamous intraepithelial lesions (SIL) to cervical cancer. METHODS We characterized the 16S rDNA cervical mucus microbiome in 94 participants (age from 18 to 52), including 13 cervical cancer (CA), 31 high-grade SIL (HSIL), 10 low-grade SIL (LSIL), 12 HPV-infected (NH) patients and 28 healthy controls (NN). Alpha (within sample) diversity was examined by Shannon and Simpson index, while Beta (between sample) diversity by principle coordinate analysis (PCoA) of weighted Unifrac distances. Relative abundance of microbial taxa was compared using Linear Discriminant Analysis Effect Size (LEfSe). Co-occurrence analysis was performed to identify correlation among marker genera, and Phylogenetic investigation of communities by reconstruction of unobserved states (PICRUSt) to explore functional features and pathways of cervical microbiota. RESULTS Alpha diversity(p < 0.05) was higher in severer cervical pathology with lower relative abundance of Lactobacillus as well as higher of anaerobes. Beta diversity (p < 0.01) was significantly different. Marker genera were identified including Porphyromonas, Prevotella and Campylobacter of CA and Sneathia of HSIL. The correlation of differential functional pathways with Prevotella was opposite to that with Lactobacillus. CONCLUSION Our study suggests differences in cervical microbiota diversity and relative abundance of reproductive-age females in different stages of cervical carcinogenesis. Marker genera might participate in the lesion progression and will be helpful for diagnosis, prevention and treatment. These findings may lead the way to further study of the cervical microbiome in development of cervical cancer.
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Affiliation(s)
- Sikao Wu
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xuewen Ding
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Ying Kong
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Sanam Acharya
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Huaqian Wu
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Chunning Huang
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yuanyuan Liang
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Xianxian Nong
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Hong Chen
- Department of Gynecology, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
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