Search Our Scientific Publications & Authors

Curr Biol 2020 Jun 26. Epub 2020 Jun 26.

MRC Laboratory of Molecular Biology, Division of Protein and Nucleic Acid Chemistry, Francis Crick Avenue, Cambridge CB2 0QH, UK; University of Cambridge, Department of Medicine, Addenbrooke's Hospital, Cambridge CB2 0QQ, UK. Electronic address:

Pathogenic bacteria enter the cytosol of host cells through uptake into bacteria-containing vacuoles (BCVs) and subsequent rupture of the vacuolar membrane [1]. Bacterial invaders are sensed either directly, through cytosolic pattern-recognition receptors specific for bacterial ligands, or indirectly, through danger receptors that bind host molecules displayed in an abnormal context, for example, glycans on damaged BCVs [2-4]. In contrast to damage caused by Listeria monocytogenes, a Gram-positive bacterium, BCV rupture by Gram-negative pathogens such as Shigella flexneri or Salmonella Typhimurium remains incompletely understood [5, 6]. Read More

JBJS Case Connect 2020 Apr-Jun;10(2):e1900489

1Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania.

Case: A 67-year-old immunocompromised woman presented with 2 weeks of atraumatic knee pain 4 months after a primary total knee arthroplasty. The patient had a history of consuming unpasteurized dairy products and horse rearing. The patient underwent a successful irrigation, debridement, polyethylene liner exchange, and adjunct antibiotic therapy for a periprosthetic joint infection (PJI). Read More

J Sci Food Agric 2020 Jul 10. Epub 2020 Jul 10.

Institute of Microbiology, Faculty of Biochemistry, Chemistry and Pharmacy (FBQF), National University of Tucumán (UNT).

Background: To extract and identify the low molecular weight phenolic fractions (LMPFs) from Albion (LMPF-A) and Camarosa (LMPF-C) strawberry cultivars, investigate their antibacterial activities against Listeria monocytogenes and Salmonella Typhimurium cocktails in vitro and in vivo using strawberry juice as food model; and also determine the antibacterial mechanism.

Results: Quercetin was identified as a principal compound in both phenolic fractions and their MIC and MBC values were around 600 and 950 μg mL against S. Typhimurium and L. Read More

Nat Commun 2020 Jul 9;11(1):3421. Epub 2020 Jul 9.

Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.

The OX40-OX40L pathway provides crucial co-stimulatory signals for CD4 T cell responses, however the precise cellular interactions critical for OX40L provision in vivo and when these occur, remains unclear. Here, we demonstrate that provision of OX40L by dendritic cells (DCs), but not T cells, B cells nor group 3 innate lymphoid cells (ILC3s), is critical specifically for the effector Th1 response to an acute systemic infection with Listeria monocytogenes (Lm). OX40L expression by DCs is regulated by cross-talk with NK cells, with IFNγ signalling to the DC to enhance OX40L in a mechanism conserved in both mouse and human DCs. Read More

J Food Sci 2020 Jul 9. Epub 2020 Jul 9.

Department of Food Engineering, State University of Ponta Grossa, Ponta Grossa, Brazil.

Food companies should comply with the requirements of a zero-waste concept to adapt to the circular economy requirements. In fruit companies, usually seeds are discarded without proper utilization and extraction of the bioactive compounds. Fruit seeds are sources of chemical compounds that can be extracted, studied, and applied in high value-added products. Read More

Eur J Microbiol Immunol (Bp) 2020 Jun 19. Epub 2020 Jun 19.

1Department Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany.

Listeria monocytogenes (Lm) is a food-borne pathogen with a high chance of infecting neonates, pregnant women, elderly and immunocompromised individuals. Lm infection in neonates can cause neonatal meningitis and sepsis with a high risk of severe neurological and developmental sequelae and high mortality rates. However, whether an acute neonatal Lm infection causes long-term effects on the immune system persisting until adulthood has not been fully elucidated. Read More

Ocul Immunol Inflamm 2020 Jul 9:1-5. Epub 2020 Jul 9.

Department of Ophthalmology, University Hospitals Leuven , Leuven, Belgium.

Purpose: The purpose of this report is to present an extremely rare case of endogenous Listeria monocytogenes endophthalmitis.

Methods: A 72-year-old woman was diagnosed with endogenous endophthalmitis. Listeria monocytogenes was identified by culture of aqueous humor. Read More

J Infect Dis 2020 Jul 9. Epub 2020 Jul 9.

Department of Microbiology and Parasitology, School of Medicine, Zhejiang University, Hangzhou, China.

Background: Base excision repair (BER), consisting mostly of lesion-specific DNA glycosylases and apurinic/apyrimidinic (AP) endonucleases, is one of the most important DNA repair mechanisms for repair of single nucleobase lesions generated by reactive oxygen and nitrogen species as part of an immune response against bacterial infections. However, few studies have addressed the contribution of BER to bacterial virulence and Listeria monocytogenes BER has thus far remained completely uncharacterized.

Methods: Analysis of the L. Read More

Arch Microbiol 2020 Jul 8. Epub 2020 Jul 8.

Laboratoire de Biologie des Systèmes Microbiens (LBSM), Ecole Normale Supérieure de Kouba, Alger, Algeria.

Saccharothrix algeriensis NRRL B-24137 is an actinobacterium isolated from Algerian Saharan soil. This strain has the ability to produce several dithiolopyrrolone antibiotic derivatives depending on the precursors added to the culture medium. This group of antibiotics is known for their potent antimicrobial and anticancer activities. Read More

Heliyon 2020 Jul 1;6(7):e04252. Epub 2020 Jul 1.

Graduate Program in Biomedical Sciences, Faculty of Allied Health Sciences, Thammasat University, Pathum Thani, Thailand.

possesses two chitinases (LmChiA and LmChiB) belonging to glycoside hydrolase family 18 (GH18). In this study, two chitinase genes ( and ) from 10403S were cloned and their biochemical characteristics were studied. Using colloidal chitin as substrate, both chitinases exhibited maximum catalytic activity at pH 6-7 with optimum temperature at 50 °C. Read More

J Food Prot 2020 Jul 7. Epub 2020 Jul 7.

Public Health England Colindale 61 Colindale Ave UNITED KINGDOM London NW9 5HT.

Results from monitoring of the microbiological quality of 2,721 samples of ready-to-eat cooked chicken collected between 2013 to 2017 in England were reviewed: 70% of samples were from retail, catering or manufacture and 30% were imported and collected at English ports. Samples were tested for a range of bacterial pathogens and indicator organisms. Six samples (<1%) had unsatisfactory levels of pathogens which were potentially injurious to health. Read More

J Food Prot 2020 Jul 7. Epub 2020 Jul 7.

University of Manitoba Elizabeth Dafoe Library Associate Professor Food and Human Nutritional Sciences 13 Freedman crescent CANADA Winnipeg Manitoba R3T 2N2 2044746658.

The goal of this research was to evaluate the efficacy of a novel rechargeable non-leaching polycationic N-halamine coating applied to stainless steel (STEEL) food contact surfaces to reduce Listeria monocytogenes contamination on ready-to-eat (RTE) foods. For this purpose, four L. monocytogenes strains were inoculated onto the charged (C; chlorine-activated) or uncharged (NC) N-halamine coated STEEL coupon surfaces (intact vs. Read More

PLoS Pathog 2020 Jul 7;16(7):e1008622. Epub 2020 Jul 7.

Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California, United States of America.

Listeria monocytogenes is a facultative intracellular bacterial pathogen that escapes from phagosomes and induces a robust adaptive immune response in mice, while mutants unable to escape phagosomes fail to induce a robust adaptive immune response and suppress the immunity to wildtype bacteria when co-administered. The capacity to suppress immunity can be reversed by blocking IL-10. In this study, we sought to understand the host receptors that lead to secretion of IL-10 in response to phagosome-confined L. Read More

Langmuir 2020 Jul 7. Epub 2020 Jul 7.

The roles of the bacterial surface biopolymers of pathogenic Listeria monocytogenes EGDe grown at variable pH conditions in governing their adhesion to a model surface of silicon nitride were investigated using atomic force microscopy (AFM) under water. Our results indicated that the adhesion forces were the highest for cells cultured in media adjusted to pH 7, followed by a 1.39, 1. Read More

Foods 2020 Jul 1;9(7). Epub 2020 Jul 1.

Laboratory of Applied Microbiology and Biotechnology, Department of Molecular Biology & Genetics, Democritus University of Thrace, GR-68100 Alexandroupolis, Greece.

The aim of the present study was to investigate the antimicrobial potential of subps. essential oil (EO) against common food spoilage and pathogenic microorganisms and evaluate its antioxidant and antiproliferative activity. The EO was isolated by steam distillation and analyzed by GC/MS. Read More

Antibiotics (Basel) 2020 Jun 30;9(7). Epub 2020 Jun 30.

Laboratorio de Higiene Inspección y Control de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Santiago de Compostela, 27002 Lugo, Spain.

Antimicrobial resistance is one of today's major public health challenges. Infections caused by multidrug-resistant bacteria have been responsible for an increasing number of deaths in recent decades. These resistant bacteria are also a concern in the food chain, as bacteria can resist common biocides used in the food industry and reach consumers. Read More

Pathogens 2020 Jun 30;9(7). Epub 2020 Jun 30.

SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice 5700, South Africa.

is a ubiquitous opportunistic pathogen responsible for the well-known listeriosis disease. This bacterium has become a common contaminant of food, threatening the food processing industry. Once consumed, the pathogen is capable of traversing epithelial barriers, cellular invasion, and intracellular replication through the modulation of virulence factors such as internalins and haemolysins. Read More

Eng Life Sci 2019 Jan 15;19(1):57-65. Epub 2018 Nov 15.

School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin Heilongjiang P. R. China.

Kieselguhr, bentonite, and montmorillonite were investigated as potential carriers of plantaricin Q7. Highest level of adsorption of plantaricin Q7 was obtained with montmorillonite. Meanwhile, visible inhibition zones were observed against for montmorillonite adsorbed with plantaricin Q7. Read More

EFSA J 2019 Sep 17;17(Suppl 2):e170917. Epub 2019 Sep 17.

Food is an elementary requirement for human life, providing nutrients and essential energy needed for optimal health. But at the same time, food can also be a vehicle of hazardous substances or pathogens that could affect human health negatively. Risk-benefit assessment (RBA) of foods, a relatively new methodology for decision support, integrates nutrition, toxicology, microbiology, chemistry and human epidemiology for a comprehensive health impact assessment. Read More

EFSA J 2019 Sep 17;17(Suppl 2):e170906. Epub 2019 Sep 17.

Ready to Eat (RTE) cooked meat products are among the most consumed RTE food subcategories in the EU. They are also associated with the highest number of listeriosis cases per year. Contamination with may arise from post-processing and its growth is often supported by the pH and water activity of the product. Read More

Microbiol Resour Announc 2020 Jul 2;9(27). Epub 2020 Jul 2.

National Reference Laboratory for Listeria monocytogenes, Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise G. Caporale, Teramo, Italy.

In this report, the draft genome sequence of serovar 1/2a strain IZSAM_Lm_14-16064, isolated in Italy from a cooked ham, is announced. The genome is similar to that of a clinical strain isolated in 2014. Read More

Poult Sci 2020 Jul 24;99(7):3655-3662. Epub 2020 Apr 24.

Department of Animal Production, Henan University of Science and Technology, Luoyang 471023, China; National Engineering Research Center of Biological Feed, Beijing 100008, China. Electronic address:

The present study aimed to investigate the effect of probiotic Lactobacilli addition on Listeria monocytogenes load, inflammatory reaction, and virulence properties in broilers from 1 to 14 D of age. A total of 480 broiler chicks were randomly allocated to 4 treatments of 6 replicates each. All birds were infected with L. Read More

BMC Genomics 2020 Jul 2;21(1):455. Epub 2020 Jul 2.

Institute of Biotechnology, University of Helsinki, Helsinki, Finland.

Background: High pressure processing (HPP; i.e. 100-600 MPa pressure depending on product) is a non-thermal preservation technique adopted by the food industry to decrease significantly foodborne pathogens, including Listeria monocytogenes, from food. Read More

Glycobiology 2020 Jul 2. Epub 2020 Jul 2.

CSIR-Institute of Microbial Technology, Sector 39A, Chandigarh 160036, India.

Glycocins are the ribosomally synthesized glycosylated bacteriocins discovered and characterized in firmicutes, only. These peptides have antimicrobial activity against several pathogenic bacteria, including Streptococcus pyrogenes, Methicillin-resistant Staphylococcus aureus and food-spoilage bacteria Listeria monocytogenes. Glycocins exhibit immunostimulatory properties and make a promising source of new-antibiotics and food preservatives akin to Nisin. Read More

Heliyon 2020 Jun 21;6(6):e04070. Epub 2020 Jun 21.

Institute of Animal Hygiene and Veterinary Public Health, University of Leipzig, Leipzig, Germany.

Surface disinfectants are regularly used in prophylactic and infection control measures. Concern has been raised whether residues of sub-inhibitory disinfectant concentrations may constitute a selective pressure and could contribute to the development of strains which are tolerant and/or resistant to biocides including antibiotics. The current study investigated whether (. Read More

Risk Anal 2020 Jul 1. Epub 2020 Jul 1.

CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal, Faculdade de Medicina Veterinária, Universidade de Lisboa, Avenida da Universidade Técnica, Lisboa, 1300-477, Portugal.

Currently, there is a growing preference for convenience food products, such as ready-to-eat (RTE) foods, associated with long refrigerated shelf-lives, not requiring a heat treatment prior to consumption. Because Listeria monocytogenes is able to grow at refrigeration temperatures, inconsistent temperatures during production, distribution, and at consumer's household may allow for the pathogen to thrive, reaching unsafe limits. L. Read More

J Food Prot 2020 Jul 1. Epub 2020 Jul 1.

University of Rochester.

Past studies have shown that the on-farm distribution of Listeria monocytogenes is affected by environmental factors (e.g., weather). Read More

Microorganisms 2020 Jun 26;8(6). Epub 2020 Jun 26.

Queen's University Belfast, Institute for Global Food Security, Belfast BT9 5DL, Northern Ireland, UK.

The worldwide ethnobotanical use of four investigated plants indicates antibacterial properties. The aim of this study was to screen and determine significant antibacterial activity of four plant extracts in vitro and in a poultry digest model. Using broth microdilution, the concentrations at which four plant extracts inhibited and over 24 hours was determined. Read More

PLoS One 2020 30;15(6):e0235472. Epub 2020 Jun 30.

Division of Food Processing Science and Technology, U. S. Food and Drug Administration, Bedford Park, Illinois, United States of America.

Refrigerated ready-to-eat (RTE) dips often have pH and water activity combinations conducive to the proliferation of foodborne pathogens, including Listeria monocytogenes. This study conducted product assessments of five refrigerated RTE dips: baba ghanoush, guacamole, hummus, pesto, and tahini, along with individual dip components including avocado, basil, chickpeas, cilantro, eggplant, garlic, and jalapeno pepper. Dips and dip components were inoculated with 2 log CFU/g of L. Read More

Luminescence 2020 Jun 30. Epub 2020 Jun 30.

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; Shandong Key Laboratory of Biochemical Analysis; Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong; College of Marine Science and Biological Engineering; Institute of Life Sciences and Biomass Resources; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology, Qingdao, China.

Bacterial pathogens control is important in seafood production. In this study, a Cu/Co/Ni ternary nanoalloy (Cu/Co/Ni TNA) is synthesized with oleylamine reducing method. It is found that Cu/Co/Ni TNA greatly enhances the chemiluminescence (CL) signal of hydroxylamine-O-sulfonicacid (HOSA)-luminol system. Read More

J Dairy Sci 2020 Jun 26. Epub 2020 Jun 26.

Institute of Animal Physiology, Center of Biosciences of the Slovak Academy of Sciences, Šoltésovej 4-6, 040 01 Košice, Slovakia.

The objective of this study was to screen Lactobacillus plantarum strains isolated from the traditional Slovak raw sheep milk cheese for their inhibitory potential. Seventy-two strains were obtained from samples of raw sheep milk and raw sheep milk cheeses collected from April 2017 to September 2018, in 23 geographical areas of Eastern Slovakia, by inoculation of de Man, Rogosa, and Sharpe agar plates (Oxoid, Basingstoke, UK). Using both the genus- and species-specific PCR methods, 43 strains were identified as Lactobacillus spp. Read More

Acta Sci Pol Technol Aliment 2020 Apr-Jun;19(2):195-205

Department of Fruit Growing, Viticulture and Enology, Slovak University of Agriculture in Nitra, Slovakia.

Background: Sea buckthorn is a good and possible source of a wide range of bioactive compounds with     a positive effect on the human body, especially polyphenols and carotenoids.

Methods: The present study aimed to evaluate the antioxidant and antimicrobial activities of Hippophae rhamnoides L. products - 100% oil, 100% juice, dry berries, and tea (dry berries, leaves, and twigs). Read More

Ter Arkh 2019 Nov 15;91(11):38-44. Epub 2019 Nov 15.

Infectious clinical hospital №2.

Object: To study the main causes of severe course and high mortality in patients with nervous form of listeriosis.

Materials And Methods: The analysis of the course of Listeria meningoencephalitis (LM) in 36 patients aged from 9 to 85 years, who were treated in the Infectious clinical hospital No. 2 DZM (IKB No. Read More

Int J Food Microbiol 2020 Jun 20;332:108765. Epub 2020 Jun 20.

Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology, Panjab University, Chandigarh, India.

Carrot cellulose nano fibers (CNF) have been extracted from carrot pulp using acid hydrolysis process. The size of the CNF was in the range of 6.33-58. Read More

Int J Biol Macromol 2020 Jun 25;162:838-844. Epub 2020 Jun 25.

Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education, Henan University, Kaifeng 475004, China.

The spiced beef is exposed to the invading of spoilage bacteria including Listeria monocytogenes. In the present study, the antimicrobial effects against L. monocytogenes of the chitosan (CS) films incorporated with apricot (Prunus armeniaca) kernel essential oil (AKEO) at 0. Read More

Appl Environ Microbiol 2020 Jun 26. Epub 2020 Jun 26.

Agricultural University of Athens, Department of Food Science and Human Nutrition, Laboratory of Food Quality Control and Hygiene, Iera odos 75, GR11855, Athens, Greece

Interactions between and food-associated or environmental bacteria are critical not only for the growth but also for a number of key biological processes of the microorganism. In this regard, limited information exists on the impact of other microorganisms on the virulence of In this study, the growth of was evaluated as single culture or in co-culture with and in tryptic soy broth (10°C/10 days and 37°C/24 hours). Transcriptional levels of 9 key virulence genes () and invasion efficiency and intracellular growth in Caco-2 cells, were determined for following grown in mono- or in co-culture for 3 days at 10°C or 9 hours at 37°C. Read More

Appl Microbiol Biotechnol 2020 Jun 25. Epub 2020 Jun 25.

Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.

In recent years, an increasing number of Listeria monocytogenes strains with resistance to quaternary ammonium compounds (QACs) have been reported. However, the genetic basis for QACs resistance in L. monocytogenes remains poorly understood. Read More

BMJ Open Gastroenterol 2020 Jun;7(1)

Information Team, West Suffolk NHS Foundation Trust, Bury St Edmunds, UK.

Objective: To estimate the number of deaths from foodborne disease in the UK from 11 key pathogens.

Design: Four different models were developed using data from a range of sources. These included enhanced surveillance, outbreaks, death certificates and hospital episode statistics data. Read More

RNA Biol 2020 Jun 25:1-16. Epub 2020 Jun 25.

Bacterial Infection & RNA Destiny Group, Institut de biologie de l'ENS (IBENS), École normale supérieure, CNRS, INSERM, Université PSL , Paris, France.

The invasion of mammalian cells by intracellular bacterial pathogens reshuffles their gene expression and functions; however, we lack dynamic insight into the distinct control levels that shape the host response. Here, we have addressed the respective contribution of transcriptional and translational regulations during a time-course of infection of human intestinal epithelial cells by an epidemic strain of , using transcriptome analysis paralleled with ribosome profiling. Upregulations were dominated by early transcriptional activation of pro-inflammatory genes, whereas translation inhibition appeared as the major driver of downregulations. Read More

Mol Biol Cell 2020 Jun 25:mbcE19080454. Epub 2020 Jun 25.

Department of Biology, University of Washington, Seattle, WA 98185-1800.

Interactions between host cells and individual pathogenic bacteria determine the clinical severity of disease during systemic infection in humans. Vascular endothelial cells, which line the lumen of blood vessels, represent a critical barrier for a bacterium in the bloodstream. These cells adopt myriad phenotypes that may modulate their susceptibility to infection, however the precise determinants of their heterogeneity in susceptibility are not known. Read More

J Infect Dis 2020 Jun 25. Epub 2020 Jun 25.

Unité de Recherche Yersinia, Institut Pasteur, Paris, France.

The bacterial pathogen Listeria monocytogenes (Lm) invades host cells, ruptures its internalization vacuole and reaches the cytosol for replication. A high-content siRNA microscopy screen allowed us to identify epithelial cell factors involved in Lm vacuolar rupture, among them the serine/threonine kinase Taok2. Kinase activity inhibition using a specific drug validated a role for Taok2 in favoring Lm cytoplasmic access. Read More

Front Immunol 2020 3;11:1146. Epub 2020 Jun 3.

Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, China-Australia Joint Laboratory for Animal Health Big Data Analytics, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, College of Animal Science and Technology & College of Veterinary Medicine of Zhejiang A&F University, Hangzhou, China.

Listeriolysin O (LLO) is a cholesterol-dependent cytolysin that mediates escape of from phagosomes and enables the bacteria to grow within the host. LLO is a versatile tool allowing to trigger several cellular responses. In this study, rapid phosphorylation of ERK1/2 on Caco-2 cells caused by infection was demonstrated to be highly dependent on LLO activity. Read More

Front Immunol 2020 9;11:1033. Epub 2020 Jun 9.

Laboratory of Immunology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium.

Application of allergens onto the sublingual epithelium is used to desensitize allergic individuals, a treatment known as sublingual immunotherapy. However, the response of sublingual epithelial cells to house dust mite allergen and potential tolerance-promoting adjuvants such as Toll-like receptor (TLR) ligands and calcitriol has not been investigated. In order to study this, primary sublingual epithelial cells were isolated from dogs and cultured . Read More

Folia Microbiol (Praha) 2020 Jun 24. Epub 2020 Jun 24.

Department of Molecular and Environmental Biotechnology, Faculty of Biology and Biotechnology, University of Science, 227 Nguyen Van Cu St, Dist 5, Ho Chi Minh City, Vietnam.

Pediocin PA-1 is a bacteriocin that shows strongly anti-microbial activity against some Gram-positive pathogens such as Listeria monocytogenes, Staphylococcus aureus, and Enterococcus faecalis. With the broad inhibitory spectrum as well as high-temperature stability, pediocin has a potential application in the food preservation and pharmaceutical industry. Pediocin has been studied to express in many heterologous expression systems such as Escherichia coli, Saccharomyces cerevisiae, and Pichia pastoris as a free peptide. Read More

Probiotics Antimicrob Proteins 2020 Jun 23. Epub 2020 Jun 23.

Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wólczańska 171/173, 90-924, Łódź, Poland.

The study aimed to evaluate the safety and probiotic properties of selected Lactobacillus strains, which are intended to be fed to monogastric animals. The Lactobacillus spp. appeared to be safe since they did not degrade mucus and did not exhibit β-haemolysis. Read More

J Food Prot 2020 Jul;83(7):1234-1240

Faculty of Agriculture, Kindai University, 3327-204, Nakamachi, Nara-shi, Nara 631-8505, Japan (ORCID: https://orcid.org/0000-0002-9651-9856 [M.M.]).

Abstract: Hygiene management of domestic refrigerators is an important aspect of food poisoning prevention. The aim of the present study was to confirm the relationship between microbial contamination and hygiene management by measuring microbial levels and investigating temperature and cleaning frequency and method of domestic refrigerators in Japan. We analyzed three internal sections (the egg compartment, bottom shelf, and vegetable drawer) of 100 domestic refrigerators in Japan. Read More

Heliyon 2020 Jun 13;6(6):e04122. Epub 2020 Jun 13.

Laboratorio de Inmunología Innata, Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas - Instituto Politécnico Nacional (ENCB-IPN), Mexico City, Mexico.

During pregnancy, NF-κB plays an important role for embryo implantation and the onset of labor. Regulated IL-6 production, under transcriptional control of NF-κB, is essential for a successful pregnancy outcome and the atypical regulator IκBNS is involved in this process. Previously, we showed that IκBNS negatively regulates IL-6 in uterine tissues during mouse estrous cycle. Read More

Foods 2020 Jun 21;9(6). Epub 2020 Jun 21.

Micalis Institute, INRAE, AgroParisTech, Université Paris-Saclay, 78350 Jouy-en-Josas, France.

Biofilms are multicellular sessile microbial communities embedded in hydrated extracellular polymeric matrices. Their formation is common in microbial life in most environments, while those formed on food-processing surfaces are of considerable interest in the context of food hygiene. Biofilm cells express properties that are distinct from planktonic ones, in particular, notorious resistance to antimicrobial agents. Read More

Toxins (Basel) 2020 Jun 20;12(6). Epub 2020 Jun 20.

Group of Molecular Microbiology, i3S-Instituto de Investigação e Inovação em Saúde, IBMC, Universidade do Porto, 4200-135 Porto, Portugal.

is among the best-characterized intracellular pathogens. Its virulence factors, and the way they interfere with host cells to hijack host functions and promote the establishment and dissemination of the infection, have been the focus of multiple studies over the last 30 years. During cellular infection, was shown to induce host DNA damage and delay the host cell cycle to its own benefit. Read More

J Food Prot 2020 Jun 23. Epub 2020 Jun 23.

Universidade Federal de Pelotas.

We aimed to perform serotyping and the antimicrobial resistance profile of Salmonella spp. and Listeria monocytogenes strains isolated from raw meats imported illegally into Brazil along the borders of Argentina and Uruguay. Distinct isolates of Salmonella spp. Read More