Investigation of potential anti-pneumococcal effects of l-sulforaphane and metabolites: Insights from synchrotron-FTIR microspectroscopy and molecular docking studies

Publication date: Available online 17 February 2020Source: Journal of Molecular Graphics and ModellingAuthor(s): Julia Liang, Anita Mantelos, Zheng Quan Toh, Stephanie M. Tortorella, Katherine Ververis, Jitraporn Vongsvivut, Keith R. Bambery, Paul V. Licciardi, Andrew Hung, Tom C. KaragiannisAbstractStreptococcus pneumoniae infection can lead to pneumococcal disease, a major cause of mortality in children under the age of five years. In low- and middle-income country settings where pneumococcal disease burden is high, vaccine use is low and widespread antibiotic use has led to increased rates of multi-drug resistant pneumococci. l-sulforaphane (LSF), derived from broccoli and other cruciferous vegetables, has established anti-inflammatory, antioxidant, and anti-microbial properties. Hence, we sought to investigate the potential role of LSF against pneumococcal infection. Using a combination of in vitro and computational methods, the results showed that LSF and relevant metabolites had a potential to reduce pneumococcal adherence through modulation of host receptors, regulation of inflammation, or through direct modification of bacterial factors. Treatment with LSF and metabolites reduced pneumococcal adherence to respiratory epithelial cells. Synchrotron-Fourier transform infrared microspectroscopy (S-FTIR) revealed biochemical changes in protein and lipid profiles of lung epithelial cells following treatment with LSF or metabolites. Molecular docking studies of 116 pneumococ...
Source: Journal of Molecular Graphics and Modelling - Category: Molecular Biology Source Type: research

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, SIREVA II Group Abstract Streptococcus pneumoniae is a major cause of morbidity and mortality worldwide, especially among children and the elderly. S. pneumoniae serotype 19A has emerged as a major cause of invasive disease in many countries, regardless of whether pneumococcal conjugate vaccines are used. The aim of this study was molecular characterization of invasive S. pneumoniae serotype 19A isolates recovered between 2000 and 2015 from 13 National Laboratories through the laboratory-based surveillance of invasive S. pneumoniae program SIREVA II in Latin American countries. The isolates were submitted with a...
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
Adults with chronic conditions such as heart disease, diabetes, or lung disease are more likely to develop complications from a number of vaccine-preventable diseases, including influenza and pneumonia. In thi...
Source: BMC Public Health - Category: Consumer Health News Authors: Tags: Research article Source Type: research
Corrigendum to "Impact of the pediatric 13-valent pneumococcal conjugate vaccine on serotype distribution and clinical characteristics of pneumococcal pneumonia in adults: The Japan Pneumococcal Vaccine Effectiveness Study (J-PAVE)" [Vaccine 37 (2019) 2687-2693]. Vaccine. 2020 Mar 19;: Authors: Sando E, Suzuki M, Furumoto A, Asoh N, Yaegashi M, Aoshima M, Ishida M, Hamaguchi S, Otsuka Y, Morimoto K PMID: 32201139 [PubMed - as supplied by publisher]
Source: Vaccine - Category: Allergy & Immunology Authors: Tags: Vaccine Source Type: research
Public health authorities are advising frequent hand washing and social distancing, especially in the absence of confirmatory testing for COVID-19. I don’t have any wisdom to add to these practices. Vaccines are in the works, as are anti-viral drugs—nothing to add here, either. But let me reiterate what we do in the Wheat Belly and Undoctored lifestyles. In general, we do not treat diseases; we correct the factors that allow disease to emerge in the first place—a big difference. Take rheumatoid arthritis, for example. In conventional healthcare, the joint pain and swelling of rheumatoid arthritis are...
Source: Wheat Belly Blog - Category: Cardiology Authors: Tags: Open probiotic undoctored wheat belly Source Type: blogs
Source: International Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Editorial Source Type: research
The objective of this research was to generate the evidence on the private sector's contribution to overall immunization coverage for selected pediatric vaccines in India. Using IMS Health's (now IQVIA) vaccine sales audit data and innovative methodological approach we estimated private-sector vaccine share in the total immunization coverage across selected pediatric vaccines in India. Our estimates suggest that private sector remains an important contributor to immunization services in India not only for Universal Immunization Program vaccines (Bacillus Calmette–Guérin [19.23%], HiB pentavalent [11....
Source: Indian Journal of Public Health - Category: International Medicine & Public Health Authors: Source Type: research
Conclusions: Because virtually all cases of pneumococcal meningitis lead to either permanent neurologic sequelae or death, it would be well worth the effort to develop a new vaccine capable of preventing pneumococcal meningitis regardless of capsular type. Such a vaccine would need to protect against colonization with most, if not all, pneumococci.
Source: The Pediatric Infectious Disease Journal - Category: Infectious Diseases Tags: Commentary Source Type: research
Background: Invasive pneumococcal disease (IPD) causes life-threatening illnesses including meningitis and bloodstream infection. Here, we report the impact of 7- and 13-valent pneumococcal conjugate vaccines (PCV7/PCV13) after introduction into the Irish pediatric immunization schedule in 2008 and 2010, respectively, and the clinical details surrounding suspected PCV vaccine failures. Methods: Serotyping and antimicrobial susceptibility testing of all culture-confirmed cases referred from children 50% since the introduction of PCVs. The most significant decline PCV serotypes in children
Source: The Pediatric Infectious Disease Journal - Category: Infectious Diseases Tags: Vaccine Reports Source Type: research
Conclusions: wSp was safe and well tolerated in healthy US adults, eliciting pneumococcal antigen-specific antibody and T-cell cytokine responses.
Source: The Pediatric Infectious Disease Journal - Category: Infectious Diseases Tags: Vaccine Reports Source Type: research
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