journal
MENU ▼
Read by QxMD icon Read
search

Microbial Pathogenesis

journal
https://www.readbyqxmd.com/read/28533142/evaluation-of-plasma-sphingosine-1-phosphate-hepcidin-and-cardiovascular-damage-biomarkers-cardiac-troponin-i-and-homocysteine-in-rats-infected-with-brucellosis-and-vaccinated-rev-1-rb-51
#1
Kaveh Azimzadeh, Reza Nasrollahi Nargesabad, Nasim Vousooghi
Brucellosis is known as one of important zoonosis. Studying the histological and biochemical effects of the disease could help to increase our knowledge about it. The aim of the present study was to evaluate changes of plasma parameters after intraperitoneal injection of two species of Brucella (Brucella melitensis and Brucella abortus) and two vaccines (Rev-1, RB-51) in the rat. Forty male rats were divided into five groups (n = 8 in each group). Two groups received suspensions of Brucella abortus and Brucella melitensis and two other groups were injected intraperitoneally with two mentioned vaccines and the last group received only distilled water...
May 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28526638/prevalence-and-antimicrobial-susceptibility-of-salmonella-and-shigella-spp-among-children-with-gastroenteritis-in-an-iranian-referral-hospital
#2
Shima Mahmoudi, Babak Pourakbari, Mina Moradzadeh, Hamid Eshaghi, Amitis Ramezani, Mohammad Taghi Haghi Ashtiani, Sepideh Keshavarz Valian, Setareh Mamishi
BACKGROUND: Gastroenteritis is one of the leading cause of illnesses through the world, especially in developing countries.Salmonella and Shigella infections are considered as the main public health problems in children. The aim of this study was to detect the prevalence and antimicrobial susceptibility of Salmonella and Shigella spp. among children with gastroenteritis in an Iranian referral hospital. METHODS: During April 2013 to April 2014, all medical records of children with gastroenteritis admitted to a pediatric medical center were evaluated...
May 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28526637/identification-and-biological-activity-of-the-volatile-compounds-of-glycyrrhiza-triphylla-fisch-c-a-mey
#3
Abolfazl Shakeri, Javad Akhtari, Vahid Soheili, Seyedeh Faezeh Taghizadeh, Amirhossein Sahebkar, Rezvan Shaddel, Javad Asili
Chemical composition and biological (antimicrobial, antioxidant and cytotoxic) activities of essential oils (EO) obtained from the aerial parts of Glycyrrhiza triphylla Fisch. & C.A.Mey (G. triphylla) were evaluated in the present study. The EO was isolated and analyzed using gas chromatography-mass spectrometry (GC-MS). Fifty-five compounds representing 99.3% of the total oil composition were identified. Major components of the oil were β-caryophyllene (25.4%), limonene (16.7%), β-myrcene (16.0%) and α-humulene (4...
May 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28512020/molecular-epidemiology-of-porcine-reproductive-and-respiratory-syndrome-virus-in-central-china-since-2014-the-prevalence-of-nadc30-like-prrsvs
#4
Lin-Jian Wang, Weitao Xie, Xin-Xin Chen, Songlin Qiao, Mengmeng Zhao, Yu Gu, Bao-Lei Zhao, Gaiping Zhang
Porcine reproductive and respiratory syndrome (PRRS), characterized by respiratory disorders in piglets and reproductive failure in sows, is still the great threat of swine industry. Recently, Emergence of the novel NADC30-like PRRS viruses (PRRSVs) has caused widespread outbreaks of PRRS. To investigate the epidemic characteristics of PRRSVs in Central China since 2014, 6372 clinical serum samples were tested by ELISA, 250 tissue samples were tested by RT-PCR, and among these, 30 ORF5 and 17 Nsp2 genes sequences were analyzed...
May 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28506887/molecular-investigation-of-virulence-factors-of-brucella-melitensis-and-brucella-abortus-strains-isolated-from-clinical-and-non-clinical-samples
#5
Reza Mirnejad, Faramarz Masjedian Jazi, Shayan Mostafaei, Mansour Sedighi
Brucella is zoonotic pathogen that induces abortion and sterility in domestic mammals and chronic infections in humans called Malta fever. It is a facultative intracellular potential pathogen with high infectivity. The virulence of Brucella is dependent upon its potential virulence factors such as enzymes and cell envelope associated virulence genes. The aim of this study was to investigate the Brucella virulence factors among strains isolated from humans and animals in different parts of Iran. Seventy eight strains of Brucella species isolated from suspected human and animal cases from several provinces of Iran during 2015-2016 and identified by phenotypic and molecular methods...
May 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28506886/experimental-mouse-lethality-of-escherichia-coli-strains-isolated-from-free-ranging-tibetan-yaks
#6
Mujeeb Ur Rehman, Hui Zhang, Yajing Wang, Khalid Mehmood, Shucheng Huang, Muhammad Kashif Iqbal, Jiakui Li
The present study has examined the virulence potential of Escherichia coli isolates harboring at least one virulence gene (associated with ExPEC or InPEC pathotype and belonging to different phylogenetic groups: A, B1, B2 or D), isolated from free ranging Tibetan yak feces. The E. coli isolates (n = 87) were characterized for different serogroups and a mouse model of subcutaneous-infection was used to envisage the virulence within these E. coli strains. Of the 87 E. coli isolates examined, 23% of the E...
May 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28506885/high-proportions-of-staphylococcus-epidermidis-in-dental-caries-harbor-multiple-classes-of-antibiotics-resistance-significantly-increase-inflammatory-interleukins-in-dental-pulps
#7
Darshan Devang Divakar, Muzaheed, Sultan Salem Aldeyab, Sara A Alfawaz, Abdulaziz Abdullah AlKheraif, Aftab Ahmed Khan
Staphylococcus epidermidis is one of most prevalent in dental caries or dental pulp which has the capability of horizontal genetic transfer between different bacterial species in the oropharynx, suggesting that it may evolve with the dissemination of resistant determinants, This study was performed to molecularly characterize and differentiate S. epidermidis isolated from dental caries and healthy individual. Also, two important cytokines in inflammation were assayed caused due to S. epidermidis of health and dental caries sources...
May 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28506884/enhancing-effect-of-50%C3%A2-hz-rotating-magnetic-field-on-induction-of-shiga-toxin-converting-lambdoid-prophages
#8
M Struk, B Grygorcewicz, P Nawrotek, A Augustyniak, M Konopacki, M Kordas, R Rakoczy
Studies aimed at investigating factors and mechanism of induction of prophages, a major pathogenesis factor of Shiga toxin-producing Escherichia coli (STEC), are considered important to develop an effective treatment for STEC infections. In this study, we demonstrated the synergistic effect of the rotating magnetic field (RMF) of induction B = 34 mT and frequency ƒ = 50 Hz at a constant temperature of 37 °C and mitomycin C (MMC), that resulted in a higher level of induction of stx-carrying lambdoid Stx prophages...
May 12, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28487230/assessment-of-antigenic-supplementation-of-bovine-purified-protein-derivative-for-diagnosis-of-subclinical-infection-with-mycobacterium-bovis-in-cattle
#9
A H Alvarez, A Gutiérrez-Ortega, V Gómez-Entzin, G Pérez-Mayorga, J Naranjo-Bastién, V González-Martínez, F Milián-Suazo, M Martínez-Velázquez, S Herrera-Rodríguez, E Hinojoza-Loza
Bovine tuberculosis (bTB) is usually diagnosed in vivo and ex vivo on the basis of delayed hypersensitivity reactions with a complex pool of antigens named bovine tuberculin (PPDB). The IFN-γ release assay (IGRA) for bTB is a blood-based assay that improves detection of infected cattle at early stages that escape skin testing. Improvements to IFN-γ testing with specific proteins have been performed to increase sensitivity. DosR regulon-related antigens are well known mycobacterial proteins expressed during the non-replicative phases of infection, this has been useful to improve the diagnosis of subclinical forms of TB in suspected individuals...
May 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28487229/every-member-of-the-kingdom-animalia-is-a-potential-vector-of-human-pathogens
#10
LETTER
Seema Patel
Zoonotic diseases are a subset of infectious diseases, which account for enormous morbidity and mortality. Pathologies like malaria, rabies, Lyme disease, leptospirosis, avian flu etc. are microbe- and parasite-caused ailments, where the etiological agents are introduced into or on the human body via ticks, mosquitoes, birds, rodents, bats, and deer, among other members of kingdom Animalia. While some of the zoonotic diseases are well-investigated and caution taken against, a lot many are yet to be recognized...
May 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28487228/characterization-of-s-adenosylhomocysteine-methylthioadenosine-nucleosidase-on-secretion-of-ai-2-and-biofilm-formation-of-escherichia-coli
#11
Tian Han, Yanhua Li, Qiuli Shan, Wenjing Liang, Weiwei Hao, Yumei Li, Xiaojun Tan, Jinsong Gu
S-adenosylhomocysteine/Methylthioadenosine nucleosidase (SAHN E.C.3.2.2.9) does not exist in mammalian cells but is essential for methyl recycling in numerous bacterial and protozoan species. Inhibition of this enzyme could limit synthesis of autoinducers of bacterial quorum sensing (QS), and hence, causes reduction in biofilm formation and may attenuate virulence. In this study, sahn deletion mutant of E. coli MG1655, sahn-complemented strain, and SANH-overexpressing strain were established and used to identify the secretion of autoinducer-2 (AI-2) and biofilm formation...
May 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28487227/melaleuca-alternifolia-essential-oil-nanoparticles-ameliorate-the-hepatic-antioxidant-oxidant-status-of-silver-catfish-experimentally-infected-with-pseudomonas-aeruginosa
#12
Carine F Souza, Matheus D Baldissera, Naiara S Guarda, Yãnaí S Bollick, Rafael N Moresco, Isabel Cristina M Brusque, Roberto C V Santos, Bernardo Baldisserotto
Oxidative stress has been recognized as a conjoint pathological mechanism that contributes to initiation and progression of liver injury, such as that caused by bacterial diseases. Natural antioxidants are considered a rational curative strategy to prevent and cure hepatic diseases involved with oxidative stress. Thus, the aim of this study was to evaluate, for the first time, whether treatment with bactericidal Melaleuca alternifolia essential oil (TTO) nanoparticles prevents or reduces the hepatic damage in silver catfish (Rhamdia quelen) experimentally infected with Pseudomonas aeruginosa (PAO1)...
May 6, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28483600/phenotypic-and-genotypic-study-of-biofilm-formation-in-enterococci-isolated-from-urinary-tract-infections
#13
F Fallah, M Yousefi, M R Pourmand, A Hashemi, A Nazari Alam, D Afshar
BACKGROUND: Urinary tract infection (UTI) is one of the most frequent types of nosocomial and community acquired infections in humans. Management of multidrug-resistant Enterococci UTI due to the limited therapeutic options is a great challenge for physicians and clinical microbiologists. The role of bacterial biofilms in recurrent urinary tract infections and antimicrobial resistance has great importance for public health. The aim of this study was to investigate the antibiotic susceptibility pattern as well as the phenotypic and genotypic biofilm formation ability of Enterococci isolates from patients with UTI...
May 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28483599/therapeutic-effects-of-silibinin-on-lps-induced-acute-lung-injury-by-inhibiting-nlrp3-and-nf-%C3%AE%C2%BAb-signaling-pathways
#14
Lin Tian, Weimin Li, Tan Wang
Silibinin, a natural product extracted from Silybum marianum (milk thistle), has been reported to have anti-inflammatory effect. The aim of this study was to explore the therapeutic effects and potential mechanisms of silibinin on lipopolysaccharide (LPS)-stimulated inflammatory responses in acute lung injury (ALI). Male BALB/c mice were conditioned with silibinin 1 h after intranasal instillation of LPS. After 12 h, the myeloperoxidase (MPO) level in lung tissues, the wet/dry (W/D) ratio, inflammatory cytokines in the bronchoalveolar lavage fluid (BALF), and histopathological examination of lung were detected...
May 5, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28479511/alterations-in-virulence-and-antibiotic-resistant-genes-of-multidrug-resistant-salmonella-serovars-isolated-from-poultry-the-bactericidal-efficacy-of-allium-sativum
#15
W M Salem, Dina M W Shibat El-Hamed, W F Sayed, R B Elamary
No abstract text is available yet for this article.
May 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28479510/evaluation-of-the-antioxidant-properties-of-carexanes-in-ags-cells-transfected-with-the-helicobacter-pylori-s-protein-hspb
#16
Elisabetta Buommino, Brigida D'Abrosca, Giovanna Donnarumma, Annamaria Parisi, Monica Scognamiglio, Antonio Fiorentino, Antonio De Luca
Naturally derived compounds represent a potential source of pharmacologically active drugs able to contrast different diseases, including gastric cancer, a multifactorial disease, in which the important role played by H. pylori infection has been demonstrated. Carexanes, stilbene derivatives, isolated from plants of the Carex distachya Desf., are unusual secondary metabolites with a tetracyclic skeleton arising from a cyclization of prenylstilbenoid precursors. In this study we firstly showed the ability of three purified carexanes CxB, CxG, and CxI to enhance the antioxidant response of AGS cells and to contrast the effect of the H...
May 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28479509/analysis-of-rrs-gene-mutations-in-amikacin-resistant-clinical-isolates-of-mycobacterium-tuberculosis-from-khyber-pakhtunkhwa-pakistan
#17
Kafeel Ahmad, Zeeshan Ahmad, Ramla Somayya, Amjad Ali, Shaista Rahat
Tuberculosis is a major infectious disease caused by Mycobacterium tuberculosis complex. Antimicrobial drugs are used to control TB infections. Molecular mechanisms controlling resistance to second-line drugs are not completely understood and no endogenous information is available regarding these mechanisms. The present study reports mutational analysis of rrs gene in Mycobacterium tuberculosis isolates collected from Khyber Pakhtunkhwa province of Pakistan. A total of 499 Mycobacterium tuberculosis isolates were analyzed for resistance against amikacin...
May 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28479508/integron-types-gene-cassettes-and-antimicrobial-resistance-profile-of-acinetobacter-baumannii-isolated-from-bal-samples-in-babol-north-of-iran
#18
Fariba Akrami, Elaheh Ferdosi Shahandashti, Yousef Yahyapour, Mohsen Sadeghi, Soraya Khafri, Abazar Pournajaf, Ramazan Rajabnia
Multi-drug resistant isolates of Acinetobacter baumannii have created therapeutic problems worldwide. This current study was intended to determine the Integron types, gene cassettes and antimicrobial resistance profile of A. baumannii isolated from BAL samples in Babol, north of Iran. During a 15-month period, 35 A. baumannii isolates were studied. Different classes of antimicrobial agents were used to determine the resistance ratios. Multiplex-PCR was used to detect different types of integrons and associated gene cassettes...
May 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28479507/complete-genome-sequence-and-bioinformatics-analyses-of-bacillus-thuringiensis-strain-bm-bt15426
#19
Junyan Liu, Lin Li, Brian M Peters, Bing Li, Dingqiang Chen, Zhenbo Xu, Mark E Shirtliff
OBJECTIVES: This study aimed to investigate the genetic characteristics of Bacillus thuringiensis strain BM-BT15426. METHODS: B. thuringiensis strain was identified by sequencing the PCR product (amplifying 16S rRNA gene) using ABI Prism 377 DNA Sequencer. The genome was sequenced using PacBio RS II sequencers and assembled de novo using HGAP. Also, further genome annotation was performed. RESULTS: The genome of B. thuringiensis strain BM-BT15426 has a length of 5,246,329 bp and contains 5409 predicted genes with an average G + C content of 35...
May 4, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28478204/seronegativity-of-bovines-face-to-their-own-recovered-leptospiral-isolates
#20
Hugo Libonati, Priscila S Pinto, Walter Lilenbaum
Leptospirosis is an important cause of reproductive failure in cattle. The standard diagnostic tool (MAT) is recommended for herd but not for individual diagnosis. The aim of this study was to evaluate the humoral response of bovines face to their own recovered isolates. A total of 25 bovine from which leptospires were recovered were tested by MAT against reference strains and their own isolates. Only three cows (12%) presented seroreactivity against their own isolates. This study demonstrates that cattle may not react against their own isolates and highlights the importance of interpreting serological negative results with caution...
May 4, 2017: Microbial Pathogenesis
journal
journal
29276
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"