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https://www.readbyqxmd.com/read/28823126/current-status-and-prospective-of-in-feed-additive-antibiotics-in-the-individual-stage-of-the-pork-production
#1
Junyou Li
Antibiotics have long been of great benefit for people, both in the medical treatment of human disease and in animal food that improves the growth performance and feed utilization during animal production. Antibiotics as in-feed supplements affect all stages of pork production, including the gestation, nursing, growing, and finishing stages, although the effects show stage-dependent differences. However, the use of antibiotics in animal feed has become a worldwide concern. This review describes why sub-therapeutic levels of antibiotic additives in animal feed have become an integral part of animal feeding programs for more than 70 years, particularly in pork production...
August 16, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28814829/antibiotic-susceptibility-heteroresistance-and-updated-treatment-strategies-in-helicobacter-pylori-infection
#2
REVIEW
Maria Teresa Mascellino, Barbara Porowska, Massimiliano De Angelis, Alessandra Oliva
In this review, we discuss the problem of antibiotic resistance, heteroresistance, the utility of cultures and antibiotic susceptibility tests in Helicobacter pylori (Hp) eradication, as well as the updated treatment strategies for this infection. The prevalence of antibiotic resistance is increasing all over the world, especially for metronidazole and clarithromycin, because of their heavy use in some geographical areas. Heteroresistance (simultaneous presence of both susceptible and resistant strains in different sites of a single stomach) is another important issue, as an isolate could be mistakenly considered susceptible if a single biopsy is used for antimicrobial tests...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28809644/-endoprosthesis-infections-guidelines-for-antibiotic-therapy-common-guidelines-of-the-czech-society-for-orthopaedics-and-traumatology-and-the-society-for-infectious-diseases-of-the-czech-medical-association-of-j-e-purkyn%C3%A4
#3
D Musil, M Balejová, M Horníková, A Chrdle, N Mallátová, O Nyč, V Chmelík, J Gallo, D Jahoda, J Stehlík
PURPOSE OF THE STUDY This study aims to articulate regional guidelines for curative and suppressive antibiotic therapy of total joint replacement infections. MATERIAL AND METHODS When developing the standard, used as source materials were the published foreign guidelines for antibiotic therapy of prosthetic joint infections, the analysis of resistance of bacterial strains conducted in the Hospital in České Budějovice, a.s. and the assessment of strain resistance for the Czech Republic published by the European Antimicrobial Resistance Surveillance Network (EARS-Net)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28805791/low-circulating-mannan-binding-lectin-levels-correlate-with-increased-frequency-and-severity-of-febrile-episodes-in-myeloma-patients-who-undergo-asct-and-do-not-receive-antibiotic-prophylaxis
#4
E Eleutherakis-Papaiakovou, M-A Dimopoulos, E Kastritis, D Christoulas, M Roussou, M Migkou, M Gavriatopoulou, D Fotiou, I Panagiotidis, D C Ziogas, N Kanellias, C Papadimitriou, E Terpos
Patients with multiple myeloma (MM) who undergo autologous stem cell transplantation (ASCT) are susceptible to severe infections. Low levels of circulating mannan-binding lectin (MBL) are associated with increased risk of infection. In this prospective study, we evaluated 100 patients who underwent ASCT regarding the effect of MBL on the incidence and severity of febrile episodes. Seventeen patients had MBL levels <500 ng/mL (11 received antibiotic prophylaxis and 6 did not). Although there was no statistical difference regarding the development of febrile episodes between patients with low and normal MBL, among 17 patients with low MBL levels, six out of eleven patients who received antibiotic prophylaxis developed a febrile episode compared with six out of six patients who did not receive antibiotic prophylaxis and developed a febrile episode...
August 14, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28794958/saccharomyces-cerevisiae-var-boulardii-fungemia-following-probiotic-treatment
#5
Marcelo C Appel-da-Silva, Gabriel A Narvaez, Leandro R R Perez, Laura Drehmer, Jairo Lewgoy
Probiotics are commonly prescribed as an adjuvant in the treatment of antibiotic-associated diarrhea caused by Clostridium difficile. We report the case of an immunocompromised 73-year-old patient on chemotherapy who developed Saccharomyces cerevisiae var. boulardii fungemia in a central venous catheter during treatment of antibiotic-associated pseudomembranous colitis with the probiotic Saccharomyces cerevisiae var. boulardii. Fungemia was resolved after interruption of probiotic administration without the need to replace the central venous line...
December 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28790407/employing-high-frequency-alternating-magnetic-fields-for-the-non-invasive-treatment-of-prosthetic-joint-infections
#6
Rajiv Chopra, Sumbul Shaikh, Yonatan Chatzinoff, Imalka Munaweera, Bingbing Cheng, Seth M Daly, Yin Xi, Chenchen Bing, Dennis Burns, David E Greenberg
Treatment of prosthetic joint infection (PJI) usually requires surgical replacement of the infected joint and weeks of antibiotic therapy, due to the formation of biofilm. We introduce a non-invasive method for thermal destruction of biofilm on metallic implants using high-frequency (>100 kHz) alternating magnetic fields (AMF). In vitro investigations demonstrate a >5-log reduction in bacterial counts after 5 minutes of AMF exposure. Confocal and scanning electron microscopy confirm removal of biofilm matrix components within 1 minute of AMF exposure, and combination studies of antibiotics and AMF demonstrate a 5-log increase in the sensitivity of Pseudomonas aeruginosa to ciprofloxacin...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28782856/an-on-site-transformation-strategy-for-treatment-of-bacterial-infection
#7
Guo-Bin Qi, Di Zhang, Fu-Hua Liu, Zeng-Ying Qiao, Hao Wang
To date, numerous nanosystems have been developed as antibiotic replacements for bacterial infection treatment. However, these advanced systems are limited owing to their nontargeting accumulation and the consequent side effects. Herein, transformable polymer-peptide biomaterials have been developed that enable specific accumulation in the infectious site and long-term retention, resulting in enhanced binding capability and killing efficacy toward bacteria. The polymer-peptide conjugates are composed of a chitosan backbone and two functional peptides, i...
August 7, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28775090/missed-aortic-valve-endocarditis-resulting-in-complete-atrioventricular-block-and-redo-mechanical-valve-replacement
#8
Amer Harky, Megan Garner, Miruna Popa, Alex Shipolini
Infective endocarditis is a rare disease associated with high morbidity and mortality. As a result, early diagnosis and prompt antibiotic treatment with or without surgical intervention is crucial in the management of such condition.We report a case of missed infective endocarditis of the aortic valve. The patient underwent mechanical aortic valve replacement, with the native valve being sent for histopathological examination. On re-admission 16 months later, he presented with syncope, shortness of breathing and complete heart block...
August 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28770427/testing-the-efficacy-of-antimicrobial-peptides-in-the-topical-treatment-of-induced-osteomyelitis-in-rats
#9
Pavel Melicherčík, Václav Čeřovský, Ondřej Nešuta, David Jahoda, Ivan Landor, Rastislav Ballay, Petr Fulín
Joint replacement infections and osteomyelitis are among the most serious complications in orthopaedics and traumatology. The risk factors for these infections are often bacterial resistance to antimicrobials. One of the few solutions available to control bacterial resistance involves antimicrobials, which have a different mechanism of action from traditional antibiotics. Antimicrobial peptides (AMP) appear to be highly promising candidates in the treatment of resistant infections. We have identified several AMP in the venom of various wild bees and designed analogues that show potent antimicrobial activity and low toxicity against eukaryotic cells...
August 2, 2017: Folia Microbiologica
https://www.readbyqxmd.com/read/28770205/fatal-mycotic-aneurysm-of-the-basilar-artery-caused-by-aspergillus-fumigatus-in-a-patient-with-pituitary-adenoma-and-meningitis
#10
Martin Winterholler, Roland Coras, Walter Geißdörfer, Rudolf Rammensee, Philipp Gölitz, Christian Bogdan, Roland Lang
Fungal infections of the central nervous system (CNS) frequently occur in immunosuppressed patients. Here, we describe the case of an immunocompetent 64-year-old man who presented with diplopia, right-sided hemiparesis, and a mild headache after cleaning and replacing nesting boxes of wild birds during the preceding months. Lumbar puncture revealed pleocytosis, elevated protein, and lactate levels in the cerebrospinal fluid (CSF). Initial imaging showed ischemia in the left thalamus and an enlargement of the sellar region...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28769881/genetic-diversity-of-nitrogen-fixing-and-plant-growth-promoting-pseudomonas-species-isolated-from-sugarcane-rhizosphere
#11
Hai-Bi Li, Rajesh K Singh, Pratiksha Singh, Qi-Qi Song, Yong-Xiu Xing, Li-Tao Yang, Yang-Rui Li
The study was designed to isolate and characterize Pseudomonas spp. from sugarcane rhizosphere, and to evaluate their plant- growth- promoting (PGP) traits and nitrogenase activity. A biological nitrogen-fixing microbe has great potential to replace chemical fertilizers and be used as a targeted biofertilizer in a plant. A total of 100 isolates from sugarcane rhizosphere, belonging to different species, were isolated; from these, 30 isolates were selected on the basis of preliminary screening, for in vitro antagonistic activities against sugarcane pathogens and for various PGP traits, as well as nitrogenase activity...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28768551/feed-additive-probiotics-accelerate-yet-antibiotics-delay-intestinal-microbiota-maturation-in-broiler-chicken
#12
Pengfei Gao, Chen Ma, Zheng Sun, Lifeng Wang, Shi Huang, Xiaoquan Su, Jian Xu, Heping Zhang
BACKGROUND: Reducing antibiotics overuse in animal agriculture is one key in combat against the spread of antibiotic resistance. Probiotics are a potential replacement of antibiotics in animal feed; however, it is not clear whether and how probiotics and antibiotics differ in impact on physiology and microbial ecology of host animals. RESULTS: Host phenotype and fecal microbiota of broilers with either antibiotics or probiotics as feed additive were simultaneously sampled at four time points from birth to slaughter and then compared...
August 3, 2017: Microbiome
https://www.readbyqxmd.com/read/28768499/simultaneous-primary-invasive-cutaneous-aspergillosis-in-two-preterm-twins-case-report-and-review-of-the-literature
#13
Floriane Gallais, Julie Denis, Olfa Koobar, Laurence Dillenseger, Dominique Astruc, Raoul Herbrecht, Ermanno Candolfi, Valérie Letscher-Bru, Marcela Sabou
BACKGROUND: Primary invasive cutaneous aspergillosis is a rare fungal infection that occurs mostly in immunocompromised patients. Newborns of very low birth weight present a high risk for this type of infection due to an immaturity of the cutaneous barrier and of the immune system. CASE PRESENTATION: We describe here a case of simultaneous invasive cutaneous aspergillosis in two preterm twins. Two male preterm bichorionic biamniotic twins (A & B) were born at a general hospital by spontaneous normal delivery at 24 weeks and 6 days of gestation...
August 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28763689/investigation-of-novel-pharmacological-chaperones-for-gaucher-disease
#14
Buge Yilmazer, Z Begum Yagci, Emre Bakar, Burcu Ozden, Kutlu Ulgen, Elif Ozkirimli
Beta-Glucocerebrosidase (GBA) is a lysosomal protein that is responsible for the hydrolysis of glycosylceramide into glucose and ceramide. Mutations in GBA lead to the accumulation of glycosylceramide in the lysosome causing an enlargement of the spleen and the liver and skeletal deformations. This disease is called Gaucher Disease. Enzyme replacement therapies and substrate reduction methods that are used to treat Gaucher Disease fail when the disease is neuropathic because they fail to pass the blood brain barrier...
July 20, 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28762237/aminoglycoside-impregnated-cement-spacer-precipitating-acute-kidney-injury-requiring-hemodialysis
#15
Sohail Abdul Salim, Jessica Everitt, Aaron Schwartz, Mohit Agarwal, Jorge Castenada, Tibor Fülöp, Luis A Juncos
The current standard of care for prosthetic joint infection includes two-stage arthroplasty, with antibiotic-impregnated cement spacers (ACS) utilized between the stages. We report a 75-year-old woman with previously normal renal function, who developed acute kidney injury (AKI) secondary to biopsy-proven acute tubular necrosis and acute interstitial nephritis after ACS placement containing tobramycin and vancomycin. Peak tobramycin level measured 25.3 mcg/mL, the highest value reported in the literature after ACS placement...
July 31, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28760895/molecular-epidemiology-and-phylogenomics-of-staphylococcus-aureus-bacteremia-in-latin-america-a-prospective-cohort-multicenter-study-in-nine-countries
#16
Cesar A Arias, Jinnethe Reyes, Lina Paola Carvajal, Sandra Rincon, Lorena Diaz, Diana Panesso, Gabriel Ibarra, Rafael Rios, Jose M Munita, Mauro J Salles, Carlos Alvarez-Moreno, Jaime Labarca, Coralith Garcia, Carlos M Luna, Carlos Mejia-Villatoro, Jeannete Zurita, Manuel Guzman-Blanco, Eduardo Rodriguez-Noriega, Apurva Narechania, Laura J Rojas, Paul J Planet, George M Weinstock, Eduardo Gotuzzo, Carlos Seas
Staphylococcus aureus are important pathogens causing a spectrum of diseases ranging from mild skin and soft tissue infections to life-threatening conditions. Bloodstream infections are particularly important and the treatment approach is complicated by the presence of methicillin resistance among S. aureus isolates (MRSA). Emergence of new genetic lineages of MRSA has occurred in Latin America (LA) with the rise and dissemination of the community-associated USA300 Latin American Variant (USA300-LV). Here, we prospectively characterized bloodstream MRSA recovered from selected hospitals in 9 Latin American countries...
July 31, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28760163/stable-engraftment-of-human-microbiota-into-mice-with-a-single-oral-gavage-following-antibiotic-conditioning
#17
Christopher Staley, Thomas Kaiser, Lalit K Beura, Matthew J Hamilton, Alexa R Weingarden, Aleh Bobr, Johnthomas Kang, David Masopust, Michael J Sadowsky, Alexander Khoruts
BACKGROUND: Human microbiota-associated (HMA) animal models relying on germ-free recipient mice are being used to study the relationship between intestinal microbiota and human disease. However, transfer of microbiota into germ-free animals also triggers global developmental changes in the recipient intestine, which can mask disease-specific attributes of the donor material. Therefore, a simple model of replacing microbiota into a developmentally mature intestinal environment remains highly desirable...
August 1, 2017: Microbiome
https://www.readbyqxmd.com/read/28758294/periodontitis-facts-fallacies-and-the-future
#18
REVIEW
Jørgen Slots
This volume of Periodontology 2000 represents the 25th anniversary of the Journal, and uses the occasion to assess important advancements in periodontology over the past quarter-century as well as the hurdles that remain. Periodontitis is defined by pathologic loss of the periodontal ligament and alveolar bone. The disease involves complex dynamic interactions among active herpesviruses, specific bacterial pathogens and destructive immune responses. Periodontal diagnostics is currently based on clinical rather than etiologic criteria, and provides limited therapeutic guidance...
October 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28754533/benefits-and-harms-of-treatment-of-asymptomatic-bacteriuria-a-systematic-review-and-meta-analysis-by-the-european-association-of-urology-urological-infection-guidelines-panel
#19
Bela Köves, Tommaso Cai, Rajan Veeratterapillay, Robert Pickard, Thomas Seisen, Thomas B Lam, Cathy Yuhong Yuan, Franck Bruyere, Florian Wagenlehner, Riccardo Bartoletti, Suzanne E Geerlings, Adrian Pilatz, Benjamin Pradere, Fabian Hofmann, Gernot Bonkat, Björn Wullt
People with asymptomatic bacteriuria (ABU) are often unnecessarily treated with antibiotics risking adverse effects and antimicrobial resistance. We performed a systematic review to determine any benefits and harms of treating ABU in particular patient groups. Relevant databases were searched and eligible trials were assessed for risk-of-bias and Grading of Recommendations, Assessment, Development and Education quality. Where possible, a meta-analysis of extracted data was performed or a narrative synthesis of the evidence was presented...
July 25, 2017: European Urology
https://www.readbyqxmd.com/read/28750094/crystal-structure-and-kinetic-analysis-of-the-class-b3-di-zinc-metallo-%C3%AE-lactamase-lra-12-from-an-alaskan-soil-metagenome
#20
María Margarita Rodríguez, Raphaël Herman, Barbara Ghiglione, Frédéric Kerff, Gabriela D'Amico González, Fabrice Bouillenne, Moreno Galleni, Jo Handelsman, Paulette Charlier, Gabriel Gutkind, Eric Sauvage, Pablo Power
We analyzed the kinetic properties of the metagenomic class B3 β-lactamase LRA-12, and determined its crystallographic structure in order to compare it with prevalent metallo-β-lactamases (MBLs) associated with clinical pathogens. We showed that LRA-12 confers extended-spectrum resistance on E. coli when expressed from recombinant clones, and the MIC values for carbapenems were similar to those observed in enterobacteria expressing plasmid-borne MBLs such as VIM, IMP or NDM. This was in agreement with the strong carbapenemase activity displayed by LRA-12, similar to GOB β-lactamases...
2017: PloS One
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