Article
Multidisciplinary Sciences
Amber Hameed, Julian M. Ketley, Alexandra Woodacre, Lee R. Machado, Gemma L. Marsden
Summary: This study conducted a classification and frequency analysis of LOS genotypes in C. jejuni and C. coli. The results showed that class B is the most abundant LOS class in C. jejuni, while class III is the most abundant LOS locus type in C. coli.
Article
Multidisciplinary Sciences
Julia Hankel, Timothy Gibson, Julia Skov, Karsten Brandt Andersen, Michelle Dargatz, Andreas Kappel, Frank Thiemann, Ben Curtis, Bussarakam Chuppava, Christian Visscher
Summary: Campylobacter is a major bacterial foodborne pathogen worldwide, and poultry is the host species with the highest clinical impact. The study evaluated current and emerging C. jejuni detection technologies on air samples, and found that both non-invasive detection technologies using volatile organic compounds (VOCs) or qPCR could detect the presence of C. jejuni and distinguish between the number of positive birds.
SCIENTIFIC REPORTS
(2022)
Article
Infectious Diseases
Ajda Kuncic, Franz Bucar, Sonja Smole Mozina
Summary: The study found that PACs and flavonoids rich in Rhodiola rosea roots and rhizomes are crucial compound groups responsible for the antimicrobial activity against Campylobacter jejuni.
Article
Biotechnology & Applied Microbiology
Taketoshi Iwata, Ayako Watanabe-Yanai, Yukino Tamamura-Andoh, Nobuo Arai, Masato Akiba, Masahiro Kusumoto
Summary: Campylobacter jejuni is a leading cause of foodborne bacterial gastroenteritis worldwide, and raw or undercooked chicken meat is considered the major source of human campylobacteriosis. We identified 36 compounds with inhibitory effects on C. jejuni, and among them, tryptanthrin (TRP) showed bactericidal activity against C. jejuni. TRP can effectively reduce the level of C. jejuni infection in chicken farms.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Luis R. Munoz, Matthew A. Bailey, James T. Krehling, Dianna V. Bourassa, Ruediger Hauck, Wilmer J. Pacheco, Bernardo Chaves-Cordoba, Kaicie S. Chasteen, Aidan A. Talorico, Cesar Escobar, Andrea Pietruska, Ken S. Macklin
Summary: A study was conducted to assess the effects of a dietary yeast cell wall (YCW) with and without a Campylobacter jejuni (CJ) challenge. The results showed that the addition of YCW did not have an impact on broiler performance, innate immune response, cecal colonization, carcass yield, or CJ prevalence after processing.
Article
Multidisciplinary Sciences
Adriana Ene, Natalie Stegman, Alan Wolfe, Catherine Putonti
Summary: This study conducted a genomic investigation of Lactobacillus gasseri and Lactobacillus paragasseri. The results showed that the two species cannot be distinguished from short-read sequencing of the 16S rRNA, but average nucleotide identity (ANI) can accurately identify them. The study also found recent divergence and/or frequent gene exchange between the two species, and their genomes frequently harbored intact prophage sequences. Biosynthetic gene clusters for bacteriocins were identified in both species.
Article
Immunology
Brandon Ruddell, Alan Hassall, Orhan Sahin, Qijing Zhang, Paul J. Plummer, Amanda J. Kreuder
Summary: The genes metA and metB are essential for l-methionine production in Campylobacter jejuni in the absence of luxS, and play a critical role in normal chicken colonization by the bacteria.
INFECTION AND IMMUNITY
(2021)
Article
Biochemistry & Molecular Biology
Harald Nothaft, Xiaoming Bian, Asif Shajahan, William G. Miller, David T. Bolick, Richard L. Guerrant, Parastoo Azadi, Kenneth K. S. Ng, Christine M. Szymanski
Summary: The study identified C. jejuni isolates expressing a hexasaccharide lacking the glucose branch, caused by a missing aspartate in the DXDD motif of the glucosyltransferase PglI. Mouse vaccination with E. coli expressing the full-length heptasaccharide demonstrated reduction in C. jejuni colonization and weight loss. The study suggests the importance of considering glucose inclusion in N-glycan-based vaccines for preventing campylobacteriosis.
ACS CHEMICAL BIOLOGY
(2021)
Article
Psychology, Clinical
Marion Nicol, Emilie Lahaye, Mouna El Mehdi, Jean-Luc do Rego, Jean-Claude do Rego, Serguei O. O. Fetissov
Summary: Chronic stress can lead to increased intake of sweets or sugar craving, which poses a risk for the development of eating disorders and obesity. This study examined the effects of two Lactobacillus strains on food and sucrose intake in mice during exposure to chronic mild stress.
EUROPEAN EATING DISORDERS REVIEW
(2023)
Article
Agriculture, Dairy & Animal Science
Pongthorn Pumtang-on, Timothy J. Mahony, Rodney A. Hill, Anthony Pavic, Thiru Vanniasinkam
Summary: Campylobacter spp. contamination in poultry products is a global concern for foodborne illnesses. Understanding the factors driving contamination and investigating genetic diversity can help in developing better intervention strategies. This study found potential sources of Campylobacter jejuni and Campylobacter coli colonization in free-range broiler farms, enhancing knowledge for controlling this foodborne pathogen effectively.
Article
Agriculture, Dairy & Animal Science
Hesham Ismail, Doaa Ibrahim, Shorouk El Sayed, Ali Wahdan, Reham M. El-Tarabili, Waleed Rizk El-Ghareeb, Bassam Abdullah Alhawas, Badr Abdul-Hakim Y. Alahmad, Sherief M. Abdel-Raheem, Marwa I. Abd El-Hamid
Summary: The emergence of antibiotics resistance in poultry industry urges the need to limit antibiotics usage and use alternative growth promoters. Probiotics have the potential to replace antibiotics, but their efficacy is hindered by the harsh gut environment. Encapsulation of Bacillus amyloliquefaciens (B. amyloliquefaciens) into nanocarriers enhances its growth-promoting effects and improves gut microbiota balance. The use of Bacillus amyloliquefaciens-loaded nanoparticles (BNPs) strengthens the gut barrier, limits Campylobacter jejuni (C. jejuni) colonization, and shedding, preventing the transmission of C. jejuni through the food chain. Nanoparticles delivery of probiotics improves growth performance and inhibits C. jejuni infection in poultry.
Article
Multidisciplinary Sciences
Blanda Di Luccia, Vittoria Acampora, Anella Saggese, Viola Calabro, Maria Vivo, Tiziana Angrisano, Loredana Baccigalupi, Ezio Ricca, Alessandra Pollice
Summary: The gut microbiota plays a positive role in maintaining intestinal homeostasis through various mechanisms. This study investigated the effects of molecules secreted by Lactobacillus gasseri SF1183 on HCT116 cells and found that these molecules can reversibly reduce cell proliferation and protect cells from apoptosis. Additionally, they enhance the barrier function between cells.
SCIENTIFIC REPORTS
(2022)
Article
Microbiology
Tsukasa Shiraishi, Shintaro Maeno, Sayoko Kishi, Tadashi Fujii, Hiroki Tanno, Katsuaki Hirano, Takumi Tochio, Yasuhiro Tanizawa, Masanori Arita, Shin-ichi Yokota, Akihito Endo
Summary: The growth and lipoteichoic acid production of two lactobacilli strains varied significantly in different oligosaccharide culture media, indicating that oligosaccharide metabolism can influence their probiotic properties. Transcription analysis suggested that differences in LTA size among the carbohydrates tested were partly due to variations in alanylation levels of LTA. This study highlights the importance of available oligosaccharides on the LTA production of industrially important lactobacilli.
Article
Multidisciplinary Sciences
Yuli Melisa Sierra-Arguello, Gustavo Perdoncini, Laura Beatriz Rodrigues, Luciana Ruschel dos Santos, Karen Apellanis Borges, Thales Quedi Furian, Carlos Tadeu Pippi Salle, Hamilton Luiz de Souza Moraes, Marcos Jose Pereira Gomes, Vladimir Pinheiro do Nascimento
Summary: Campylobacter jejuni is a common cause of foodborne illnesses worldwide, with limited research on strains isolated from Latin-American countries. This study in Southern Brazil identified 140 C. jejuni strains from various poultry sources and analyzed their virulence markers, providing insight into factors related to the occurrence of this pathogen and their epidemiology. The PCR analysis revealed 25 different virulence profiles, with certain combinations of virulence genes being more common among the strains.
SCIENTIFIC REPORTS
(2021)
Article
Biotechnology & Applied Microbiology
Soyon Mann, Myeong Soo Park, Tony V. Johnston, Geun Eog Ji, Keum Taek Hwang, Seockmo Ku
Summary: The research successfully isolated L. gasseri HHuMIN D from the human body, which showed high inhibitory effects against oral pathogens and halitosis-producing anaerobic microorganisms. This strain demonstrated potential as a safe and effective probiotic for promoting human oral health.
MICROBIAL CELL FACTORIES
(2021)