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https://www.readbyqxmd.com/read/28729203/epidemiological-cut-off-value-of-clinical-isolates-of-burkholderia-pseudomallei-from-northern-queensland-to-meropenem-ceftazidime-trimethoprim-sulphamethoxazole-and-doxycycline-by-microbroth-dilution
#1
Samuel Maloney, Cathy Engler, Robert Norton
Melioidosis is caused by the bacteria Burkholderia pseudomallei. The most common antibiotics used to treat melioidosis in Australia are meropenem, ceftazidime, trimethoprim-sulphamethoxazole (TMP-SMX), and doxycycline. The European Committee on Antimicrobial Susceptibility Testing (EUCAST) and The Clinical & Laboratory Standards Institute (CLSI) do not provide standards for assessing the susceptibility of B. pseudomallei for these agents. The International Standards Organisation (ISO) microbroth dilution method is accepted by both CLSI and EUCAST as the gold standard of antimicrobial susceptibility testing...
July 17, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28728857/-rosacea-new-data-for-better-care
#2
B Cribier
In the last 10 years, numerous studies have been published that throw new light on rosacea, in all areas of the disease. This overview summarises all the key developments, based on the indexed bibliography appearing in Medline between 2007 and 2017. Recent epidemiological data show that the prevalence of the disease is doubtless greater than estimated hitherto (more than 10% of adults in some countries) and that we should not overlook rosacea in subjects with skin phototypes V or VI, a condition that exists on all continents...
July 17, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28727740/genetically-engineered-suicide-gene-in-mesenchymal-stem-cells-using-a-tet-on-system-for-anaplastic-thyroid-cancer
#3
Senthilkumar Kalimuthu, Ji Min Oh, Prakash Gangadaran, Liya Zhu, Ho Won Lee, Yong Hyun Jeon, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee, Byeong-Cheol Ahn
Anaplastic thyroid cancer (ATC) is the most aggressive malignancy of the thyroid, during which undifferentiated tumors arise from the thyroid follicular epithelium. ATC has a very poor prognosis due to its aggressive behavior and poor response to conventional therapies. Gene-directed enzyme/prodrug therapy using genetically engineered mesenchymal stromal cells (MSC) is a promising therapeutic strategy. The doxycycline (DOX)-controlled Tet inducible system is the most widely utilized regulatory system and could be a useful tool for therapeutic gene-based therapies...
2017: PloS One
https://www.readbyqxmd.com/read/28724383/molecular-characterization-and-genetic-relatedness-of-clinically-acinetobacter-baumanii-isolates-conferring-increased-resistance-to-the-first-and-second-generations-of-tetracyclines-in-iran
#4
Zahra Meshkat, Himen Salimizand, Yousef Amini, Mostafa Khakshoor, Davoud Mansouri, Hadi Farsiani, Kiarash Ghazvini, Adel Najafi
BACKGROUND: The increasing resistance of Acinetobacter baumannii to antibiotics has recently been regarded as a notable therapeutic difficulty. Evaluating resistance rates of some A. baumannii isolates to tetracyclines had an impact on understanding the antibiotic resistance dissemination. By comparing genetic characteristics and relatedness of A. baumannii isolates, we are able to determine the transition dynamics of outbreak isolates. METHODS: A total of 72 non-duplicate isolates of A...
July 19, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28722584/rocky-mountain-spotted-fever-and-pregnancy-four-cases-from-sonora-mexico
#5
Jesus David Licona-Enriquez, Jesus Delgado-de la Mora, Christopher D Paddock, Carlos Arturo Ramirez-Rodriguez, María Del Carmen Candia-Plata, Gerardo Álvarez Hernández
We present a series of four pregnant women with Rocky Mountain spotted fever (RMSF) that occurred in Sonora, Mexico, during 2015-2016. Confirmatory diagnoses were made by polymerase chain reaction or serological reactivity to antigens of Rickettsia rickettsii by using an indirect immunofluorescence antibody assay. Each patient presented with fever and petechial rash and was treated successfully with doxycycline. Each of the women and one full-term infant delivered at 36 weeks gestation survived the infection...
June 12, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722171/use-of-antibiotics-during-pregnancy-and-the-risk-of-major-congenital-malformations-a-population-based-cohort-study
#6
Flory T Muanda, Odile Sheehy, Anick Bérard
INTRODUCTION: Few studies have investigated the link between individual antibiotics and major congenital malformations (MCMs) including specific malformations owing to small sample size. We aimed to quantify the association between exposure to gestational antibiotic and the risk of MCMs. METHODS: Using the Quebec pregnancy cohort (1998 -2008), we included a total of 139,938 liveborn singleton alive whose mothers were covered by the «Régie de l'assurance maladie du Québec" drug plan for at least 12 months before and during pregnancy...
July 19, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28717851/multidrug-resistant-salmonellae-isolated-in-japanese-quails-reared-in-abeokuta-nigeria
#7
Ezekiel O Omoshaba, F O Olufemi, O E Ojo, A O Sonibare, M Agbaje
Salmonellosis is a major bacterial disease causing huge economic losses in the poultry industry worldwide. This study was carried out to determine the period prevalence and antimicrobial susceptibility of Salmonella enterica in Japanese quails in Abeokuta, Nigeria. Four hundred cloacal swabs of quail birds were collected from 4 locations within Abeokuta. Salmonella was isolated from the samples using conventional methods for selective isolation of Salmonella and biochemical identification. Isolates were confirmed by polymerase chain reaction assays for the amplification and detection of Salmonella-associated virulence genes (invA and stn) using specific primers...
July 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28717368/community-acquired-methicillin-resistant-staphylococcus-aureus-carriage-rate-and-antimicrobial-susceptibility-in-a-tertiary-center-iran
#8
Shervin Shokouhi, Ilad Alavi Darazam, Mohammad-Hossein Zamanian
BACKGROUND: This study was aimed to determine frequency and antimicrobial susceptibility of Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) among colonized patients in outpatient status. MATERIALS AND METHODS: A total of 2000 nasal nares specimens were collected and inoculated on mannitol salt agar. MRSAs were identified based on mannitol positivity and coagulase test followed by cefoxitin disc diffusion test. Antimicrobial susceptibility of MRSA isolates was performed by E-test method for vancomycin and doxycycline as well as disc diffusion method for sulfamethoxazole-trimethoprim (SMX-TMP), erythromycin, linezolid, and clindamycin...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28717217/tki-addicted-ros1-rearranged-cells-are-destined-to-survival-or-death-by-the-intensity-of-ros1-kinase-activity
#9
Hayato Ogura, Yuka Nagatake-Kobayashi, Jun Adachi, Takeshi Tomonaga, Naoya Fujita, Ryohei Katayama
ROS1 rearrangement is observed in 1-2% of non-small cell lung cancers (NSCLC). The ROS1 tyrosine kinase inhibitor (TKI) crizotinib has induced marked tumour shrinkage in ROS1-rearranged cancers. However, emergence of acquired resistance to TKI is inevitable within a few years. Previous findings indicate that cabozantinib overcomes secondary mutation-mediated crizotinib-resistance in ROS1-fusion-positive cells. Here we attempted to establish cabozantinib-resistant cells by N-ethyl-N-nitrosourea mutagenesis screening using CD74-ROS1-expressing Ba/F3 cells...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717050/which-azithromycin-regimen-should-be-used-for-treating-mycoplasma-genitalium-a-meta-analysis
#10
REVIEW
Patrick Horner, Suzanne M Ingle, Frederick Garrett, Karla Blee, Fabian Kong, Peter Muir, Harald Moi
BACKGROUND: There is increasing evidence that azithromycin 1 g is driving the emergence of macrolide resistance in Mycoplasma genitalium worldwide. We undertook a meta-analysis of M. genitalium treatment studies using azithromycin 1 g single dose and azithromycin 500 mg on day 1 then 250 mg daily for 4 days (5-day regimen) to determine rates of treatment failure and resistance in both regimens. METHODS: The online databases PubMed and Medline were searched using terms "Mycoplasma genitalium", "macrolide" or "azithromycin" and "resistance" up to April 2016...
July 17, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28713773/the-cytolethal-distending-toxin-subunit-cdtb-of-helicobacter-hepaticus-promotes-senescence-and-endoreplication-in-xenograft-mouse-models-of-hepatic-and-intestinal-cell-lines
#11
Christelle Péré-Védrenne, Martina Prochazkova-Carlotti, Benoit Rousseau, Wencan He, Lucie Chambonnier, Elodie Sifré, Alice Buissonnière, Pierre Dubus, Francis Mégraud, Christine Varon, Armelle Ménard
Cytolethal distending toxins (CDTs) are common among pathogenic bacteria of the human and animal microbiota. CDTs exert cytopathic effets, via their active CdtB subunit. No clear description of those cytopathic effects has been reported at the cellular level in the target organs in vivo. In the present study, xenograft mouse models of colon and liver cell lines were set up to study the effects of the CdtB subunit of Helicobacter hepaticus. Conditional transgenic cell lines were established, validated in vitro and then engrafted into immunodeficient mice...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28712656/treatments-for-ocular-adnexal-lymphoma-a-report-by-the-american-academy-of-ophthalmology
#12
Michael T Yen, Jurij R Bilyk, Edward J Wladis, Elizabeth A Bradley, Louise A Mawn
PURPOSE: To review the literature to determine the efficacy of available treatments for ocular adnexal lymphoma (OAL) and to evaluate the outcomes and complications of treatments in patients older than 13 years. METHODS: A literature search was conducted last in March 2017 in the PubMed and Cochrane Library databases for English-language original research investigations that evaluated treatment outcomes for OAL. The searches identified 307 unique citations, and 27 studies were selected according to the criteria outlined for this assessment...
July 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28709171/omental-actinomycosis-imitating-a-foreign-body-infection
#13
Yoo Shin Choi, Yong Gum Park
Actinomycosis is a rare chronic disease caused by a group of anaerobic Gram-positive bacteria that colonize the mouth, colon, and urogenital tract. Infection involving the cervicofacial area is the most common clinical presentation, followed by that of the pelvic and thoracic areas. The preoperative diagnosis of abdominal actinomycosis is difficult because the condition can be easily confused with malignancy, tuberculosis, or other inflammatory diseases. We report a case of omental actinomycosis mimicking a foreign body...
July 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28709136/tetracyclines-as-a-potential-antiviral-therapy-against-crimean-congo-hemorrhagic-fever-virus-docking-and-molecular-dynamic-studies
#14
Amirhossein Sharifi, Arash Amanlou, Faezeh Moosavi-Movahedi, Sahand Golestanian, Massoud Amanlou
Crimean-Congo Hemorrhagic Fever Virus (CCHFV) is one of the deadliest human diseases with mortality rate near 50%. Special attention should be paid to this virus since there is no approved treatment for it. On the other hand, the recent outbreak of Ebola virus which is a member of hemorrhagic fever viruses shows this group of viruses can be extremely dangerous. Previous studies have indicated that nucleoprotein of CCHFV, a pivotal protein in virus replication, is an appropriate target for antiviral drug development...
July 1, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28707014/doxycycline-and-its-quaternary-ammonium-derivative-for-adjuvant-therapies-of-chondrosarcoma
#15
Imen Miladi, Magali Vivier, Marie-Mélanie Dauplat, Morgane Chatard, Sophie Besse, Aurélien Vidal, Karine Chassain, Betty Jean, Christiane Forestier, Jean-Michel Chezal, Francoise Rédini, Francoise Degoul, Elisabeth Miot-Noirault
PURPOSE: This study was conducted during the development of innovative treatment targeting the microenvironment of chondrosarcoma. In this context, MMP inhibitors were conjugated with a quaternary ammonium (QA) function as a targeting ligand to proteoglycans of chondrosarcoma extracellular matrix. Here we report the proof of concept of this strategy applied to the MMP13 inhibitor, doxycycline (Dox). METHODS: A quaternary ammonium derivative of the MMP13 inhibitor doxycycline (QA-Dox) was synthesized, and its anticancer activity was evaluated in the Swarm rat chondrosarcoma (SRC) model compared with the parent drug doxycycline, in vitro and in vivo...
July 13, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28705754/progression-of-lyme-disease-to-bell-s-palsy-despite-treatment-with-doxycycline
#16
Luis A Marcos, Zengmin Yan
A 54 year-old healthy woman presented to the emergency department with a right sided facial paralysis. About 3 weeks ago, she woke up and noticed an attached engorged tick in her right lower extremity. A week later, she noticed a mild to moderate right jaw pain which progressed to a severe right facial pain so she visited her doctor. On physical, II to XII cranial nerve examination was unremarkable. Doppler ultrasound did not show any vascular abnormalities in temporal artery. Her inflammatory markers were within normal limits (C-reactive protein:0...
July 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28705668/in-vitro-activity-of-the-novel-fluorocycline-eravacycline-against-carbapenem-non-susceptible-acinetobacter-baumannii
#17
Harald Seifert, Danuta Stefanik, Joyce A Sutcliffe, Paul G Higgins
The activity of eravacycline was compared with anti-Acinetobacter reference antimicrobials against carbapenem non-susceptible Acinetobacter baumannii isolates associated with an acquired OXA or up-regulation of the intrinsic OXA-51-like enzyme. Antimicrobial susceptibility testing was performed by broth microdilution of 286 non-duplicate, carbapenem non-susceptible A. baumannii isolates to eravacycline, amikacin colistin, doxycycline, imipenem, levofloxacin, meropenem, minocycline, sulbactam, tigecycline, and tobramycin...
July 10, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28705624/evaluation-of-three-layered-doxycycline-collagen-loaded-nanofiber-wound-dressing
#18
Tort Serdar, Acartürk Füsun, Beşikci Arzu
Nanofiber wound dressings have great potential for both acute and chronic wound healing. The aim of this study is to develop a wound dressing by the electrospinning method and to determine its in vitro characteristics. The viscosity and the surface tension values of the polymer solutions used in the electrospinning were measured and their suitability for electrospinning was evaluated. Nanofiber wound dressing consists of three layers. The core of the coaxial nanofibers that comprises the first layer of the wound dressing contains 1% polycaprolactone and 4...
July 10, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28702476/regulatable-transgene-expression-for-prevention-of-chemotherapy-induced-peripheral-neuropathy
#19
Daisuke Kawata, Zetang Wu
Chemotherapy-induced peripheral neuropathy (CIPN) is a debilitating complication associated with drug treatment of cancer for which there are no effective strategies of prevention or treatment. In this study, we examined the effect of intermittent expression of neurotophin-3 (NT-3) or interleukin-10 (IL-10) from replication-defective herpes simplex virus (HSV)-based regulatable vectors delivered by subcutaneous inoculation to the dorsal root ganglion (DRG) on the development of paclitaxel-induced peripheral neuropathy...
September 15, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28698946/ultra-sensitive-nano-optical-sensor-samarium-doxycycline-doped-in-sol-gel-matrix-for-assessment-of-glucose-oxidase-activity-in-diabetics-disease
#20
Marwa M Tharwat, M S Attia, M S Alghamdi, Amr M Mahros
A low cost and very sensitive method for the determination of the activity of glucose oxidase enzyme in different diabetics serum samples was developed. The method based on the assessment of the H2O2 concentration produced from the reaction of the glucose oxidase (GOx) enzyme with glucose as substrate in the serum of diabetics patients by nano optical sensor Sm-doxycycline doped in sol gel matrix. H2O2 enhances the luminescence intensity of all bands of the nano Sm-doxycycline complex [Sm-(DC)2](+) doped in sol-gel matrix, especially the 645 nm band at λex = 400 nm and pH 7...
July 11, 2017: Journal of Fluorescence
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