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You searched for: Journal Microbial pathogenesis Remove constraint Journal: Microbial pathogenesis Source 2017 v.113 Remove constraint Source: 2017 v.113 Subject pathogens Remove constraint Subject: pathogens
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1. Adaptations in the physiological heterogeneity and viability of Shigella dysenteriae, Shigella flexneri and Salmonella typhimurium, after exposure to simulated gastric acid fluid

Author:
Singh, Atheesha; Barnard, Tobias George
Source:
Microbial pathogenesis 2017 v.113 pp. 378-384
ISSN:
0882-4010
Subject:
Salmonella Typhimurium; Shigella dysenteriae; Shigella flexneri; acidity; bacteria; diarrhea; flow cytometry; gastric acid; humans; inoculum; pH; pathogens; propidium; risk; small intestine; stomach; thiazoles; viability
Abstract:
... Stomach acidity is an important barrier of the human body to protect itself from microbial pathogens entering the small intestine and causing infection. This study examined the survival adaptations of non-acid adapted diarrheal Shigella and Salmonella strains in an environment mimicking the human stomach. The bacterial responses to the challenge of acidic simulated gastric fluid were studied using ...
DOI:
10.1016/j.micpath.2017.11.014

2. Antibacterial activity and probiotic characterization of autochthonous Paenibacillus polymyxa isolated from Anabas testudineus (Bloch, 1792)

Author:
Midhun, Sebastian J.; Neethu, Sahadevan; Vysakh, A.; Arun, Damodaran; Radhakrishnan, E.K.; Jyothis, Mathew
Source:
Microbial pathogenesis 2017 v.113 pp. 403-411
ISSN:
0882-4010
Subject:
Anabas testudineus; Oreochromis niloticus; Paenibacillus polymyxa; antibacterial properties; aquaculture; bacteria; bile; biofilm; cell free system; digestion; enzymes; fish; ingredients; intestines; intraperitoneal injection; mortality; mucus; nucleotide sequences; pathogens; probiotics; ribosomal DNA
Abstract:
... Microbial fish pathogens are prevalent in aquaculture. Control of bacterial fish pathogens is important and bio control of pathogenic bacteria is a novel field of study. The aim of this study was to evaluate the antagonistic activity of bacteria isolated from Anabas testudineus against potent fish pathogens. The cellular components/preparations and filtered cell free culture supernatants were effe ...
DOI:
10.1016/j.micpath.2017.11.019

3. Antibacterial activity of autochthonous bacteria isolated from Anabas testudineus (Bloch, 1792) and it's in vitro probiotic characterization

Author:
Midhun, Sebastian J.; Neethu, Sahadevan; Vysakh, A.; Sunil, M.A.; Radhakrishnan, E.K.; Jyothis, Mathew
Source:
Microbial pathogenesis 2017 v.113 pp. 312-320
ISSN:
0882-4010
Subject:
Anabas testudineus; Bacillus (bacteria); Oreochromis niloticus; antibacterial properties; aquaculture; bacteria; bile; biofilm; culture media; digestion; enzymes; ethyl acetate; fish; intraperitoneal injection; mortality; mucus; nucleotide sequences; pathogens; probiotics; ribosomal RNA
Abstract:
... Antimicrobial potentials of bacteria isolated from Anabas testudineus have been evaluated through in vitro antagonistic activity against potent fish pathogens. The cellular components and filtered culture medium were effective against six fish pathogens. Altogether 110 strains were isolated from the fish gut, out of which 10 strains were selected through well diffusion method. From them, a strain ...
DOI:
10.1016/j.micpath.2017.10.058

4. Antibacterial and antibiofilm activities of eugenol from essential oil of Syzygium aromaticum (L.) Merr. & L. M. Perry (clove) leaf against periodontal pathogen Porphyromonas gingivalis

Author:
Zhang, Yi; Wang, Yue; Zhu, Xiaojing; Cao, Ping; Wei, Shaomin; Lu, Yanhua
Source:
Microbial pathogenesis 2017 v.113 pp. 396-402
ISSN:
0882-4010
Subject:
Porphyromonas gingivalis; Syzygium aromaticum; additives; antibacterial properties; biofilm; cell membranes; essential oils; eugenol; fluorescent dyes; gene expression regulation; genes; health services; leaves; pathogens; periodontitis; scanning electron microscopy; virulence
Abstract:
... The antibacterial effect and mechanism of eugenol from Syzygium aromaticum (L.) Merr. & L. M. Perry (clove) leaf essential oil (CLEO) against oral anaerobe Porphyromonas gingivalis were investigated. The results showed that eugenol, with content of 90.84% in CLEO, exhibited antibacterial activity against P. gingivalis at a concentration of 31.25 μM. Cell shrink and lysis caused by eugenol were obs ...
DOI:
10.1016/j.micpath.2017.10.054

5. Antibiofilm activity of nanoemulsions of Cymbopogon flexuosus against rapidly growing mycobacteria

Author:
Rossi, Grazielle Guidolin; Guterres, Kevim Bordignon; Bonez, Pauline Cordenonsi; da Silva Gundel, Samanta; Aggertt, Vanessa Albertina; Siqueira, Fallon Santos; Ourique, Aline Ferreira; Wagnerd, Roger; Klein, Bruna; Santos, Roberto Christ Vianna; de Campos, Marli Matiko Anraku
Source:
Microbial pathogenesis 2017 v.113 pp. 335-341
ISSN:
0882-4010
Subject:
Cymbopogon flexuosus; Mycobacterium abscessus; Mycobacterium fortuitum; anti-infective agents; antimicrobial properties; bioavailability; biofilm; cell viability; drugs; essential oils; microorganisms; minimum inhibitory concentration; nanoemulsions; oils; pathogens; plankton; temperature
Abstract:
... Rapidly growing mycobacteria (RGM) are opportunistic microorganisms that can cause both local and disseminated infections. When in biofilm, these pathogens become highly resistant to antimicrobials used in clinical practice. Composed abundantly of polymeric substances, biofilms delay the diffusion of antimicrobials, preventing the drug from penetrating the deeper layers and having an effective act ...
DOI:
10.1016/j.micpath.2017.11.002

6. Antimicrobial efficacy of drug blended biosynthesized colloidal gold nanoparticles from Justicia glauca against oral pathogens: A nanoantibiotic approach

Author:
Emmanuel, Rayappan; Saravanan, Muthupandian; Ovais, Muhammad; Padmavathy, Sethuramasamy; Shinwari, Zabta Khan; Prakash, Periyakaruppan
Source:
Microbial pathogenesis 2017 v.113 pp. 295-302
ISSN:
0882-4010
Subject:
Bacillus subtilis; Candida albicans; Escherichia coli; Fourier transform infrared spectroscopy; Justicia; Lactobacillus acidophilus; Micrococcus luteus; Pseudomonas aeruginosa; Saccharomyces cerevisiae; Staphylococcus aureus; Streptococcus mutans; X-ray diffraction; ambient temperature; antibiotic resistance; antifungal properties; azithromycin; bacteria; clarithromycin; cytotoxicity; drug delivery systems; drug therapy; drugs; energy-dispersive X-ray analysis; fungi; ions; leaf extracts; minimum inhibitory concentration; nanogold; pathogens; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Antimicrobial resistance is a challenging task for researchers to develop new strategies. Green synthesis of AuNPs is an eco-friendly approach, which can be utilized in the microbistatic and microbicidal activities. The current study is focused on Justicia glauca (aqueous leaf extract) mediated AuNPs synthesis at room temperature by treating chloroaurate ions, that shows an antagonistic effect wit ...
DOI:
10.1016/j.micpath.2017.10.055

7. Bio-prospecting of coral (Porites lutea) mucus associated bacteria, Palk Bay reefs, Southeast coast of India

Author:
Ahila, N.K.; Prakash, S.; Manikandan, B.; Ravindran, J.; Prabhu, N.M.; Kannapiran, E.
Source:
Microbial pathogenesis 2017 v.113 pp. 113-123
ISSN:
0882-4010
Subject:
Artemia; Bacillus subtilis; Enterobacter cloacae; Vibrio; bacteria; bacterial communities; bioactive compounds; chloroform; coasts; corals; energy; ethyl acetate; molecular systematics; mortality; mucus; pathogens; principal component analysis; reefs; ribosomal RNA; screening; solvents; India
Abstract:
... Coral mucus is one of the key localization in the coral holobiont, as this serves as an energy rich substrate for a wide range of abundant, diverse and multifunctional microbiota. However, very little is known about the functional role of bacterial communities in their associations with corals. In the present study, a total of 48 isolates were obtained from Porites lutea wherein the genus of Bacil ...
DOI:
10.1016/j.micpath.2017.09.056

8. Comparative transcriptome analysis reveals induction of apoptosis in chicken kidney cells associated with the virulence of nephropathogenic infectious bronchitis virus

Author:
Liu, Hui; Yang, Xin; Zhang, Zhikun; Li, Jianan; Zou, Wencheng; Zeng, Fanya; Wang, Hongning
Source:
Microbial pathogenesis 2017 v.113 pp. 451-459
ISSN:
0882-4010
Subject:
DNA replication; Infectious bronchitis virus; apoptosis; chickens; chicks; financial economics; gene expression; gene expression regulation; gene ontology; genes; immune response; innate immunity; kidney cells; kidneys; nephritis; pathogens; protein-protein interactions; proteins; transcriptome; transcriptomics; viral load; virulence; viruses
Abstract:
... Avian infectious bronchitis virus (IBV) that causes respiratory and nephritic diseases in chicken is a major poultry pathogen leading to serious economic loss worldwide. The nephropathogenic IBV strains cause nephritis and kidney lesions intrinsically and the pathogenic mechanism is still unclear. In the present study, SPF chicks were infected with three nephropathogenic IBVs of different virulenc ...
DOI:
10.1016/j.micpath.2017.11.031

9. Effect of aminoglycosides on the pathogenic characteristics of microbiology

Author:
Xu, Zhenbo; Xu, Xingyong; Qi, Da; Yang, Ling; Li, Bing; Li, Lin; Li, Xiaoxi; Chen, Dingqiang
Source:
Microbial pathogenesis 2017 v.113 pp. 357-364
ISSN:
0882-4010
Subject:
aminoglycoside antibiotics; aminoglycosides; biofilm; drug resistance; intestinal microorganisms; pathogens
Abstract:
... Infections caused by pathogen remain to be one of the most important global health issues, and scientists are devoting themselves to seeking effective treatments. Aminoglycoside antibiotics are one kind of widely used antibiotics because of the good efficiency and broad antimicrobial-spectrum. However, it causes some unexpected effects on the pathogenic characteristics of microbiology during the t ...
DOI:
10.1016/j.micpath.2017.08.053

10. Flagellar motility, extracellular proteases and Vibrio cholerae detachment from abiotic and biotic surfaces

Author:
Mewborn, Loree; Benitez, Jorge A.; Silva, Anisia J.
Source:
Microbial pathogenesis 2017 v.113 pp. 17-24
ISSN:
0882-4010
Subject:
Vibrio cholerae; aquatic environment; biofilm; cholera; disease transmission; extracellular matrix; fimbriae; hemagglutinins; humans; mice; mutants; pathogenesis; pathogens; plasmids; proteinases; proteolysis; serotypes; small intestine; suckling
Abstract:
... Vibrio cholerae of serogroups O1 and O139, the causative agent of Asiatic cholera, continues to be a major global health threat. This pathogen utilizes substratum-specific pili to attach to distinct surfaces in the aquatic environment and the human small intestine and detaches when conditions become unfavorable. Both attachment and detachment are critical to bacterial environmental survival, patho ...
DOI:
10.1016/j.micpath.2017.10.016

11. Healthcare workers' hands as a vehicle for the transmission of virulent strains of Candida spp.: A virulence factor approach

Author:
Sakita, Karina Mayumi; Faria, Daniella Renata; Silva, Eliane Martins da; Tobaldini-Valério, Flávia Kelly; Kioshima, Erika Seki; Svidzinski, Terezinha Inez Estivalet; Bonfim-Mendonça, Patricia de Souza
Source:
Microbial pathogenesis 2017 v.113 pp. 225-232
ISSN:
0882-4010
Subject:
Candida parapsilosis; adhesion; amphotericin B; biofilm; candidiasis; endogenous sources; endothelial cells; fluconazole; genetic similarity; germ tube; hands; health care workers; hospitals; micafungin; minimum inhibitory concentration; pathogens; patients; random amplified polymorphic DNA technique; risk; scanning electron microscopy; virulence; virulent strains; yeasts
Abstract:
... Although the majority of Candida infections are thought to come from endogenous sources, the healthcare workers' (HCWs) hands are being increasingly reported as vehicles for the transmission of pathogens. The aim of the present study was to evaluate the susceptibility of yeast isolated from the HCWs' hands and ICU (Intensive Care Unit) surfaces to antifungal agents and to determine the virulence p ...
DOI:
10.1016/j.micpath.2017.10.044

12. Simultaneous RNA-seq based transcriptional profiling of intracellular Brucella abortus and B. abortus-infected murine macrophages

Author:
Hop, Huynh Tan; Arayan, Lauren Togonon; Reyes, Alisha Wehdnesday Bernardo; Huy, Tran Xuan Ngoc; Min, WonGi; Lee, Hu Jang; Son, Jee Soo; Kim, Suk
Source:
Microbial pathogenesis 2017 v.113 pp. 57-67
ISSN:
0882-4010
Subject:
Brucella melitensis biovar Abortus; DNA; RNA; cell proliferation; cellular microenvironment; chemokines; energy; gene expression; gene expression regulation; genes; interleukin-12; interleukin-1alpha; interleukin-1beta; interleukin-6; macrophages; mice; pathogens; protein synthesis; secretion; sequence analysis; signal transduction; transactivators; transcription (genetics); transcription factor NF-kappa B; tumor necrosis factors
Abstract:
... Brucella is a zoonotic pathogen that survives within macrophages; however the replicative mechanisms involved are not fully understood. We describe the isolation of sufficient Brucella abortus RNA from primary host cell environment using modified reported methods for RNA-seq analysis, and simultaneously characterize the transcriptional profiles of intracellular B. abortus and bone marrow-derived m ...
DOI:
10.1016/j.micpath.2017.10.029

13. Vanillin selectively modulates the action of antibiotics against resistant bacteria

Author:
Bezerra, Camila Fonseca; Camilo, Cicera Janaine; do Nascimento Silva, Maria Karollyna; de Freitas, Thiago Sampaio; Ribeiro-Filho, Jaime; Coutinho, Henrique Douglas Melo
Source:
Microbial pathogenesis 2017 v.113 pp. 265-268
ISSN:
0882-4010
Subject:
Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; analysis of variance; antagonism; antibacterial properties; bacteria; data analysis; drug therapy; erythromycin; fruits; gentamicin; imipenem; medicine; minimum inhibitory concentration; norfloxacin; pathogens; synergism; vanillin; vegetables
Abstract:
... The treatment of infections caused by microorganisms that are resistant to antibiotics represent one of the main challenges of medicine today, especially due to the inefficacy of long-term drug therapy. In the search for new alternatives to treat these infections, many researchers have been looking for new substances derived from natural products to replace, or be used in combination with conventi ...
DOI:
10.1016/j.micpath.2017.10.052

14. Virulence characteristics and molecular relatedness of methicillin resistant Staphylococcus aureus harboring different staphylococcal cassette chromosome mec

Author:
El-baz, Rana; Rizk, Dina E.; Barwa, Rasha; Hassan, Ramadan
Source:
Microbial pathogenesis 2017 v.113 pp. 385-395
ISSN:
0882-4010
Subject:
biofilm; carboxylic ester hydrolases; chromosomes; cross infection; genes; genetic relationships; health services; hemagglutination; hospitals; human diseases; methicillin-resistant Staphylococcus aureus; pathogens; phenotype; proteinases; virulence
Abstract:
... Methicillin resistant Staphylococcus aureus (MRSA) is a versatile pathogen capable of causing multitude of human diseases. It is one of the most important nosocomial pathogen that implicated in community and healthcare associated infections. Therefore, this study aims to characterize different SCCmec elements found in MRSA isolates. Moreover, molecular typing was performed to investigate the genet ...
DOI:
10.1016/j.micpath.2017.11.021