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https://www.readbyqxmd.com/read/27907115/brucella-melitensis-16m-regulates-the-effect-of-air-domain-on-inflammatory-factors-autophagy-and-apoptosis-in-mouse-macrophage-through-the-ros-signaling-pathway
#1
Tiansen Li, Yafang Xu, Laizhen Liu, Meiling Huang, Zhen Wang, Zhixia Tong, Hui Zhang, Fei Guo, Chuangfu Chen
Brucellosis is a highly contagious zoonosis caused by Brucella. Brucella can invade and persist inside host cells, which results in chronic infection. We constructed AIR interference and overexpression lentiviruses to acquire AIR interference, overexpression, and rescue stable expression cell lines. We also established a Brucella melitensis 16M-infected macrophage model, which was treated with either the vehicle control or NAC (ROS scavenger N-acetylcysteine (NAC) for 0, 3, 6, 12, and 24 h. Confocal laser microscopy, transmission electron microscopy, fluorescence quantitative PCR, flow cytometry, ELISA, and Western blot were used to detect inflammation, cell autophagy and apoptosis-related protein expression levels, ROS levels, and the distribution of mitochondria...
2016: PloS One
https://www.readbyqxmd.com/read/27907105/epidemiology-of-brucellosis-and-genetic-diversity-of-brucella-abortus-in-kazakhstan
#2
Elena Shevtsova, Alexandr Shevtsov, Kasim Mukanov, Maxim Filipenko, Dinara Kamalova, Igor Sytnik, Marat Syzdykov, Andrey Kuznetsov, Assel Akhmetova, Mira Zharova, Talgat Karibaev, Pavel Tarlykov, Erlan Ramanculov
Brucellosis is a major zoonotic infection in Kazakhstan. However, there is limited data on its incidence in humans and animals, and the genetic diversity of prevalent strains is virtually unstudied. Additionally, there is no detailed overview of Kazakhstan brucellosis control and eradication programs. Here, we analyzed brucellosis epidemiological data, and assessed the effectiveness of eradication strategies employed over the past 70 years to counteract this infection. We also conducted multiple loci variable-number tandem repeat analysis (MLVA) of Brucella abortus strains found in Kazakhstan...
2016: PloS One
https://www.readbyqxmd.com/read/27900285/a-t4ss-effector-targets-host-cell-alpha-enolase-contributing-to-brucella-abortus-intracellular-lifestyle
#3
María I Marchesini, Susana M Morrone Seijo, Francisco F Guaimas, Diego J Comerci
Brucella abortus, the causative agent of bovine brucellosis, invades and replicates within cells inside a membrane-bound compartment known as the Brucella containing vacuole (BCV). After trafficking along the endocytic and secretory pathways, BCVs mature into endoplasmic reticulum-derived compartments permissive for bacterial replication. Brucella Type IV Secretion System (VirB) is a major virulence factor essential for the biogenesis of the replicative organelle. Upon infection, Brucella uses the VirB system to translocate effector proteins from the BCV into the host cell cytoplasm...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27899503/postreplication-roles-of-the-brucella-virb-type-iv-secretion-system-uncovered-via-conditional-expression-of-the-virb11-atpase
#4
Erin P Smith, Cheryl N Miller, Robert Child, Jennifer A Cundiff, Jean Celli
: Brucella abortus, the bacterial agent of the worldwide zoonosis brucellosis, primarily infects host phagocytes, where it undergoes an intracellular cycle within a dedicated membrane-bound vacuole, the Brucella-containing vacuole (BCV). Initially of endosomal origin (eBCV), BCVs are remodeled into replication-permissive organelles (rBCV) derived from the host endoplasmic reticulum, a process that requires modulation of host secretory functions via delivery of effector proteins by the Brucella VirB type IV secretion system (T4SS)...
November 29, 2016: MBio
https://www.readbyqxmd.com/read/27894608/brucellosis-in-cattle-and-micro-scale-spatial-variability-of-pastoral-household-income-from-dairy-production-in-south-western-uganda
#5
Pius Mbuya Nina, Samuel Mugisha, Herwig Leirs, Gilbert Isabirye Basuta, Patrick Van Damme
Brucellosis in cattle and humans has received world-wide research attention as a neglected and re-emerging zoonotic disease with many routes of transmission. Studies of brucellosis in Uganda have emphasized occupational exposures and also revealed variations in prevalence levels by region and cattle production systems. To date, research linking pastoralist household income from dairy production to brucellosis and its transmission risk pathways do not exist in Uganda. We assessed whether spatial differences in unit milk prices can be explained by brucellosis prevalence in cattle along a distance gradient from Lake Mburo National Park in Uganda...
November 25, 2016: Acta Tropica
https://www.readbyqxmd.com/read/27872852/modelling-seasonal-brucellosis-epidemics-in-bayingolin-mongol-autonomous-prefecture-of-xinjiang-china-2010-2014
#6
Pengwei Lou, Lei Wang, Xueliang Zhang, Jiabo Xu, Kai Wang
Brucellosis is one of the severe public health problems; the cumulative number of new human brucellosis cases reached 211515 from 2010 to 2014 in China. Bayingolin Mongol Autonomous Prefecture is situated in the southeast of Xinjiang, where brucellosis infection occurs every year. Based on the reported data of newly acute human brucellosis cases for each season in Bayingolin Mongol Autonomous Prefecture, we proposed a susceptible, exposed, infected, and vaccinated (SEIV) model with periodic transmission rates to investigate the seasonal brucellosis transmission dynamics among sheep/cattle and from sheep/cattle to humans...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27871206/brucellosis-and-thrombosis-of-the-inferior-vena-cava
#7
Kristina Rüegger, Philip Tarr, Konstantinos Karatolios, Jörg Humburg, Rolf Hügli, Christina Jeanneret
We describe the case of a 23-year old woman with a newly diagnosed thrombosis of the inferior vena cava associated with a Brucella melitensis infection. We suggest possible mechanisms leading to brucellosis-associated venous thrombosis and review 14 previously reported cases.
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November 22, 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27866494/brucellosis-as-a-neglected-disease-in-a-neglected-population-a-seroepidemiological-study-of-migratory-nomads-in-the-fars-province-of-iran
#8
B Honarvar, M Moghadami, K B Lankarani, M A Davarpanah, M Ataolahi, A Farbod, E Eskandari, M Panahi, A Ghorbani, Z Zahiri, R Tabrizi, M Pourjafar, S M M Heidari
This study assessed the seroprevalence of brucellosis and its risk factors in migratory nomads in the Fars province of Iran. Active brucellosis was defined as the combination of clinical symptoms, including fever, chills, night sweats, headache, low back pain, arthralgia, or myalgia, and positive laboratory testing, including either a serum agglutination test (SAT) ⩾1:80 with a 2-mercaptoethanol (2-ME) test ⩾1:40, or a SAT <1:80 combined with a positive Coombs Wright test (CWT) at a titre of at least threefold higher than SAT titre results...
November 21, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27863930/-an-atypical-presentation-of-human-brucellosis
#9
A-L Blanc-Gruyelle, X Lemaire, A Guaguere, A Sotto, E Senneville, J-P Lavigne
No abstract text is available yet for this article.
November 15, 2016: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/27863096/outbreak-of-occupational-brucellosis-at-a-pharmaceutical-factory-in-southeast-china
#10
B D Zhan, S Q Wang, S M Lai, Y Lu, X G Shi, G P Cao, X L Hu, C J Zheng, Z Y Yu, J M Zhang, C F Fang, Z Y Gong
Brucellosis is an occupational disease affecting workers in butcher shops, the milking and dairy product industry, causing more than 500 000 new cases around the world. As a national statutory B infectious disease in China, morbidity of brucellosis is rapidly increasing in recent years. We report an occupational outbreak of brucellosis infection in a pharmaceutical factory. Exposure was a result of manual operation in the process line, close contact with sheep placentas, insufficient disinfection and repeated using of protective suits and infected by aerosol dissemination...
November 12, 2016: Zoonoses and Public Health
https://www.readbyqxmd.com/read/27857610/predictors-of-specific-anti-brucella-antibodies-among-humans-in-agro-pastoral-communities-in-sengerema-district-mwanza-tanzania-the-need-for-public-awareness
#11
Elifuraha B Mngumi, Mariam M Mirambo, Sospeter Wilson, Stephen E Mshana
BACKGROUND: Human brucellosis remains to be a neglected zoonotic disease among agro-pastoral communities where livestock rearing is one of the main economic activities. This study was conducted in different agro-pastoral communities in Sengerema district, Mwanza, Tanzania, to determine seroprevalence and predictors of anti-Brucella antibodies, information that may influence public awareness on the risk factors and strategies to improve the diagnosis of brucellosis in developing countries...
2016: Tropical Medicine and Health
https://www.readbyqxmd.com/read/27853716/contamination-of-bovine-sheep-and-goat-meat-with-brucella-spp
#12
Francesco Casalinuovo, Lucia Ciambrone, Antonio Cacia, Paola Rippa
A study was conducted in order to evaluate the contamination by Brucella spp. of meat from animals slaughtered because they had resulted positive for brucellosis at some time during their life. After slaughter and before delivery to market outlets, swab samples were taken from 307 carcasses of infected animals: 40 cattle, 60 sheep and 207 goats. The swabs were subsequently analysed by means of polymerase chain reaction (PCR) tests. In addition, bacteriological tests were carried out on the lymph nodes and internal organs of the same animals...
June 3, 2016: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/27847417/seroprevalence-of-brucellosis-among-cattle-slaughtered-in-three-municipal-abattoirs-of-gombe-state-northeastern-nigeria
#13
Saleh Mohammed Jajere, Naphtali Nayamanda Atsanda, Asinamai Athliamai Bitrus, Tasiu Mallam Hamisu, Ajurojo Oluwaseun Ayo
AIM: A cross-sectional study was conducted to determine the seroprevalence of bovine brucellosis among cattle slaughtered at three municipal abattoirs of Gombe State, Nigeria. MATERIALS AND METHODS: A total of 200 blood samples collected from slaughtered cattle of different breeds (Sokoto Gudali - 50, White Fulani - 102, Red bororo - 34, and Crossbreeds - 14), sex (males - 19 and females - 181), and from different locations (Billiri - 30, Yamaltu Deba - 50, and Gombe - 120) were screened for brucellosis using rose bengal plate test (RBPT), serum agglutination test (SAT), and microtiter agglutination test (MAT)...
October 2016: Veterinary World
https://www.readbyqxmd.com/read/27846274/meta-analysis-and-advancement-of-brucellosis-vaccinology
#14
Tatiane F Carvalho, João Paulo A Haddad, Tatiane A Paixão, Renato L Santos
BACKGROUND/OBJECTIVES: In spite of all the research effort for developing new vaccines against brucellosis, it remains unclear whether these new vaccine technologies will in fact become widely used. The goal of this study was to perform a meta-analysis to identify parameters that influence vaccine efficacy as well as a descriptive analysis on how the field of Brucella vaccinology is advancing concerning type of vaccine, improvement of protection on animal models over time, and factors that may affect protection in the mouse model...
2016: PloS One
https://www.readbyqxmd.com/read/27836044/risk-assessment-and-management-of-brucellosis-in-the-southern-greater-yellowstone-area-ii-cost-benefit-analysis-of-reducing-elk-brucellosis-prevalence
#15
Kari Boroff, Mandy Kauffman, Dannele Peck, Eric Maichak, Brandon Scurlock, Brant Schumaker
Recent cases of bovine brucellosis (Brucella abortus) in cattle (Bos taurus) and domestic bison (Bison bison) of the southern Greater Yellowstone Area (SGYA) have been traced back to free-ranging elk (Cervus elaphus). Several management activities have been implemented to reduce brucellosis seroprevalence in elk, including test-and-slaughter, low-density feeding at elk winter feedgrounds, and elk vaccination. It is unclear which of these activities are most cost-effective at reducing the risk of elk transmitting brucellosis to cattle...
November 1, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/27832029/brucellar-aortitis-and-meningoencephalitis-in-an-adolescent
#16
Gulsum Iclal Bayhan, Ibrahim Ece, Ahmet Faik Oner
Brucellosis can affect any organ system and result in possible complications. We present an adolescent male who had brucellar aortitis and meningitis simultaneously. Brucellar aortic involvement is a rare complication of brucellosis and can occur without concomitant endocarditis. Here, the patient was managed with prolonged antibiotic therapy without any surgery.
December 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27824952/low-seroprevalence-of-brucellosis-in-humans-and-small-ruminants-in-the-gambia
#17
Eveline A Germeraad, Lenny Hogerwerf, Tisbeh Faye-Joof, Bart Goossens, Wim van der Hoek, Momodou Jeng, Modou Lamin, Ismaila L Manneh, Davis Nwakanma, Hendrik I J Roest, Arss Secka, Arjan Stegeman, Rita Wegmüller, Marianne A B van der Sande, Ousman Secka
BACKGROUND: Brucellosis is a worldwide zoonosis with significant impact on rural livelihoods and a potentially underestimated contributor to febrile illnesses. The aim of this study was to estimate the seroprevalence of brucellosis in humans and small ruminants in The Gambia. METHODS: The study was carried out in rural and urban areas. In 12 rural villages in Kiang West district, sera were collected from humans (n = 599) and small ruminants (n = 623) from the same compounds...
2016: PloS One
https://www.readbyqxmd.com/read/27824867/microrna-expression-patterns-of-cd8-t-cells-in-acute-and-chronic-brucellosis
#18
Ferah Budak, S Haldun Bal, Gulcin Tezcan, Furkan Guvenc, E Halis Akalin, Guher Goral, Gunnur Deniz, H Barbaros Oral
Although our knowledge about Brucella virulence factors and the host response increase rapidly, the mechanisms of immune evasion by the pathogen and causes of chronic disease are still unknown. Here, we aimed to investigate the immunological factors which belong to CD8+ T cells and their roles in the transition of brucellosis from acute to chronic infection. Using miRNA microarray, more than 2000 miRNAs were screened in CD8+ T cells of patients with acute or chronic brucellosis and healthy controls that were sorted from peripheral blood with flow cytometry and validated through qRT-PCR...
2016: PloS One
https://www.readbyqxmd.com/read/27818809/neurobrucellosis-a-case-report-from-himachal-pradesh-india-and-review-of-the-literature
#19
Sujeet Raina, Ashish Sharma, Rajesh Sharma, Amit Bhardwaj
Human brucellosis is a multisystem disease that commonly presents as a febrile illness along with variable spectrum of clinical manifestations. Neurological complications include encephalitis, meningoencephalitis, radiculitis, myelitis, peripheral and cranial neuropathies, subarachnoid hemorrhage, and psychiatric manifestations. We report a case diagnosed as neurobrucellosis who presented with fever and bilateral upper motor neuron symptoms and signs along with bilateral sensorineural deafness. Diagnosis was confirmed by Rose Bengal Test (RBT) and standard tube agglutination test (SAT)...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27816477/molecular-epidemiology-of-brucella-abortus-isolated-from-cattle-in-brazil-2009-2013
#20
Mayra Silva Oliveira, Elaine Maria Seles Dorneles, Paulo Martins Filho Soares, Antônio Augusto Fonseca, Lívia Orzil, Patrícia Gomes de Souza, Andrey Pereira Lage
The aims of the present study were to genotype Brucella abortus strains isolated from cattle in Brazil between 2009 and 2013, and to analyze their distribution to support the Programa Nacional de Controle e Erradicação de Brucelose e Tuberculose (PNCEBT) (National Brucellosis and Tuberculosis Control and Eradication Program). One hundred forty B. abortus strains isolated from cattle in Brazil between 2009 and 2013 were genotyped using a set of 18 variable number of tandem repeats (VNTR) (MLVA16+HOOF-Print 3 and 4)...
November 2, 2016: Acta Tropica
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