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antimicrobial chemotherapy

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https://www.readbyqxmd.com/read/28331838/bibliometric-analysis-of-literature-on-antifungal-triazole-resistance-1980-2015
#1
Waleed M Sweileh, Ansam F Sawalha, Samah Al-Jabi, Sa'ed H Zyoud
BACKGROUND: Triazole antifungal agents play an important role in the treatment of a wide range of fungal infections. Little is known about antifungal triazole drug resistance when compared to antibiotic resistance. Therefore, this study was carried out to give a bibliometric overview of literature on triazole antifungal drug resistance. METHODS: Keywords related to triazole drug class and resistance were used in a search query in the Scopus search engine. The time span was set from 1980 to 2015...
March 2017: Germs
https://www.readbyqxmd.com/read/28330090/piper-betle-leaf-extract-affects-the-quorum-sensing-and-hence-virulence-of-pseudomonas-aeruginosa-pao1
#2
Siraj Datta, Debanjan Jana, Tilak Raj Maity, Aveek Samanta, Rajarshi Banerjee
Quorum sensing (QS) plays an important role in virulence of Pseudomonas aeruginosa, blocking of QS ability are viewed as viable antimicrobial chemotherapy and which may prove to be a safe anti-virulent drug. Bioactive components from Piper betle have been reported to possess antimicrobial ability. This study envisages on the anti-QS properties of ethanolic extract of P. betle leaf (PbLE) using P. aeruginosa PAO1 as a model organism. A marked reduction in swarming, swimming, and twitching ability of the bacteria is demonstrated in presence of PbLE...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28303057/retrospective-survey-and-evaluation-of-first-line-antibiotics-for-chemotherapy-induced-febrile-neutropenia-in-patients-with-acute-myeloid-leukemia
#3
Naoki Mukoyama, Marie Nakashima, Koichi Miyamura, Akira Yoshimi, Yukihiro Noda, Kazuhiro Mori
Patients with acute leukemia are susceptible to chemotherapy-induced severe myelosuppression, and therefore are at a high risk for febrile neutropenia (FN). In such cases, the use of broad-spectrum antibiotics such as fourth-generation cephalosporins and carbapenems is recommended as first-line antimicrobial treatment; however, the effectiveness of these agents in patients with acute myeloid leukemia (AML) has not been investigated in detail. We retrospectively examined and evaluated the effectiveness of first-line antibiotic treatment regimens for chemotherapy-induced FN in patients with AML in Japanese Red Cross Nagoya Daiichi Hospital...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28292983/origins-of-combination-therapy-for-tuberculosis-lessons-for-future-antimicrobial-development-and-application
#4
REVIEW
Christopher A Kerantzas, William R Jacobs
Tuberculosis is a global health problem that causes the death of approximately 1.5 million people worldwide each year (WHO, p. 1-126, Global Tuberculosis Report, 2015). Treatment of drug-susceptible tuberculosis requires combination antimicrobial therapy with a minimum of four antimicrobial agents applied over the course of 6 months. The first instance of combination antimicrobial therapy applied to tuberculosis was the joint use of streptomycin and para-aminosalicylic acid as documented by the Medical Research Council of the United Kingdom in 1950...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28282645/haemophilus-influenzae-isolated-from-men-with-acute-urethritis-its-pathogenic-roles-responses-to-antimicrobial-chemotherapies-and-antimicrobial-susceptibilities
#5
Shin Ito, Kyoko Hatazaki, Ken Shimuta, Hiromi Kondo, Kosuke Mizutani, Mitsuru Yasuda, Keita Nakane, Tomohiro Tsuchiya, Shigeaki Yokoi, Masahiro Nakano, Makoto Ohinishi, Takashi Deguchi
BACKGROUND: There have been few comprehensive studies on Haemophilus influenza-positive urethritis. METHODS: In this retrospective study, we enrolled 68 men with H. influenzae-positive urethritis, including coinfections with Neisseria gonorrhoeae, Chlamydia trachomatis, and/or genital mycoplasmas: 2, 3, 20, and 43 treated with ceftriaxone, levofloxacin, sitafloxacin, and extended-release azithromycin (azithromycin-SR), respectively. We assessed microbiological outcomes in 54 men and clinical outcomes in 46 with H...
April 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28258236/the-role-played-by-drug-efflux-pumps-in-bacterial-multidrug-resistance
#6
REVIEW
Mohsen Chitsaz, Melissa H Brown
Antimicrobial resistance is a current major challenge in chemotherapy and infection control. The ability of bacterial and eukaryotic cells to recognize and pump toxic compounds from within the cell to the environment before they reach their targets is one of the important mechanisms contributing to this phenomenon. Drug efflux pumps are membrane transport proteins that require energy to export substrates and can be selective for a specific drug or poly-specific that can export multiple structurally diverse drug compounds...
February 28, 2017: Essays in Biochemistry
https://www.readbyqxmd.com/read/28251266/rapid-killing-of-bacteria-by-a-new-type-of-photosensitizer
#7
Yaxin Zhang, Ke Zheng, Zhuo Chen, Jincan Chen, Ping Hu, Linrong Cai, Zafar Iqbal, Mingdong Huang
Photodynamic antimicrobial chemotherapy (PACT) uses non-traditional mechanisms (free radicals) and is a highly advocated method with promise of inactivating drug-resistance bacteria for local infections. However, there is no related drug used in clinical practice yet. Therefore, new photosensitizers for PACT are under active development. Here, we report the synthesis of a series of photosensitizers with variable positive charges (ZnPc(TAP)4(n+), n = 0, 4, 8, 12) and their inactivation against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria...
March 1, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28216021/prevalence-antibiotic-susceptibility-and-characterization-of-antibiotic-resistant-genes-among-carbapenem-resistant-gram-negative-bacilli-and-yeast-in-intestinal-flora-of-cancer-patients-in-north-lebanon
#8
Rima Christophy, Marwan Osman, Hassan Mallat, Marcel Achkar, Azzam Ziedeh, Walid Moukaddem, Fouad Dabboussi, Monzer Hamze
The emergence and spread of carbapenem-resistant bacteria are a significant clinical and public health concern. The aim of the study is to determine the prevalence of intestinal carriage of carbapenem-resistant bacteria and yeasts in cancer patients under chemotherapy. 41 stool samples collected from cancer patients in Nini hospital in Tripoli, North Lebanon have been analyzed. After isolating yeasts and carbapenem-resistant bacteria, a biochemical identification and antimicrobial susceptibility profile were determined...
February 15, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28202859/experience-of-peripherally-inserted-central-venous-catheter-in-patients-with-hematologic-diseases
#9
Yoshinori Hashimoto, Takanori Fukuta, Junko Maruyama, Hiromi Omura, Takayuki Tanaka
Objective Although use of the peripherally inserted central venous catheter (PICC) has become increasingly common, there are few reports of PICCs used for patients with hematologic diseases. In this study, we analyzed the safety of PICC placement in patients with hematologic diseases where PICCs had been placed to perform blood collection, blood transfusion, drug administration, and hematopoietic stem cell transplantation. Methods This study included 142 PICCs placed in 95 patients managed at our department from November 2013 to December 2015...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28193209/secretion-of-biologically-active-pancreatitis-associated-protein-i-pap-by-genetically-modified-dairy-lactococcus-lactis-nz9000-in-the-prevention-of-intestinal-mucositis
#10
Rodrigo D Carvalho, Natalia Breyner, Zelia Menezes-Garcia, Nubia M Rodrigues, Luisa Lemos, Tatiane U Maioli, Danielle da Gloria Souza, Denise Carmona, Ana M C de Faria, Philippe Langella, Jean-Marc Chatel, Luis G Bermúdez-Humarán, Henrique C P Figueiredo, Vasco Azevedo, Marcela S de Azevedo
BACKGROUND: Mucositis is one of the most relevant gastrointestinal inflammatory conditions in humans, generated by the use of chemotherapy drugs, such as 5-fluoracil (5-FU). 5-FU-induced mucositis affects 80% of patients undergoing oncological treatment causing mucosal gut dysfunctions and great discomfort. As current therapy drugs presents limitations in alleviating mucositis symptoms, alternative strategies are being pursued. Recent studies have shown that the antimicrobial pancreatitis-associated protein (PAP) has a protective role in intestinal inflammatory processes...
February 13, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28185508/infusion-therapy
#11
Erin Dean
Essential facts Many patients admitted to hospital or receiving care in other settings, including their own homes, are recipients of one or more infusion therapies. Total parenteral nutrition, chemotherapy, parenteral antimicrobial therapy, pain relief and other infusion therapies are increasingly delivered in community settings. While the move away from hospital helps meet patients' lifestyles and clinical needs, it can have implications for patient care and safety.
February 10, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28182734/how-to-use-a-chemotherapeutic-agent-when-resistance-to-it-threatens-the-patient
#12
Elsa Hansen, Robert J Woods, Andrew F Read
When resistance to anticancer or antimicrobial drugs evolves in a patient, highly effective chemotherapy can fail, threatening patient health and lifespan. Standard practice is to treat aggressively, effectively eliminating drug-sensitive target cells as quickly as possible. This prevents sensitive cells from acquiring resistance de novo but also eliminates populations that can competitively suppress resistant populations. Here we analyse that evolutionary trade-off and consider recent suggestions that treatment regimens aimed at containing rather than eliminating tumours or infections might more effectively delay the emergence of resistance...
February 2017: PLoS Biology
https://www.readbyqxmd.com/read/28174097/synthetic-2-aryl-3-piperidin-1-yl-ethyl-thiazolidin-4-ones-exhibit-selective-in%C3%A2-vitro-antitumoral-activity-and-inhibit-cancer-cell-growth-in-a-preclinical-model-of-glioblastoma-multiforme
#13
Elita F da Silveira, Juliana H Azambuja, Taíse Rosa de Carvalho, Alice Kunzler, Daniel S da Silva, Fernanda C Teixeira, Rodrigo Rodrigues, Fátima T Beira, Rita de Cássia Sant Anna Alves, Roselia M Spanevello, Wilson Cunico, Francieli M Stefanello, Ana P Horn, Elizandra Braganhol
Glioblastoma multiforme (GBM) is the worst form of primary brain tumor, which has a high rate of infiltration and resistance to radiation and chemotherapy, resulting in poor prognosis for patients. Recent studies show that thiazolidinones have a wide range of pharmacological properties including antimicrobial, anti-inflammatory, anti-oxidant and anti-tumor. Here, we investigate the effect antiglioma in vitro of a panel of sixteen synthetic 2-aryl-3-((piperidin-1-yl)ethyl)thiazolidin-4-ones where 13 of these decreased the viability of glioma cells 30-65% (100 μM) compared with controls...
March 25, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28160269/infections-in-cancer-patients-with-solid-tumors-a-review
#14
REVIEW
Kenneth V I Rolston
Solid tumors are much more common than hematologic malignancies. Although severe and prolonged neutropenia is uncommon, several factors increase the risk of infection in patients with solid tumors, and the presence of multiple risk factors in the same patient is not uncommon. These include obstruction (most often caused by progression of the tumor), disruption of natural anatomic barriers such as the skin and mucosal surfaces, and treatment-related factors such as chemotherapy, radiation, diagnostic and/or therapeutic surgical procedures, and the increasing use of medical devices such as various catheters, stents, and prostheses...
March 2017: Infectious Diseases and Therapy
https://www.readbyqxmd.com/read/28151090/monitoring-the-decrease-in-susceptibility-to-ribosomal-rnas-targeting-antimicrobials-and-its-molecular-basis-in-clinical-mycoplasma-bovis-isolates-over-time
#15
Dima Khalil, Claire A M Becker, Florence Tardy
Mycoplasma bovis is considered an emerging threat to bovine production in industrialized countries. Its control depends on good husbandry and efficient chemotherapy practices. In France, clinical isolates collected after 2009 showed a drastic loss of susceptibility to most antimicrobials when compared with isolates collected in 1978-1979. The aim of the present study was to analyze the molecular mechanisms underlying the shift toward resistance to macrolides and tetracyclines and to assess whether the clinical origin of the isolates or their molecular subtypes could have influenced their pattern of evolution...
February 2, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28132623/infusion-therapy
#16
Erin Dean
Essential facts [Figure: see text] Many patients admitted to hospital or receiving care in other settings, including their own homes, are recipients of one or more infusion therapies. Total parenteral nutrition, chemotherapy, parenteral antimicrobial therapy, pain relief and other infusion therapies are increasingly delivered in community settings. While the move away from hospital helps meet patients' lifestyles and clinical needs, it can have implications for patient care and safety.
January 30, 2017: Nursing Management (Harrow)
https://www.readbyqxmd.com/read/28128927/ru-ii-complex-based-dna-photocleaver-having-intense-absorption-in-the-phototherapeutic-window
#17
Yangyang Zhang, Qianxiong Zhou, Na Tian, Chao Li, Xuesong Wang
Ru(II)-complex-based DNA photocleavers have been extensively studied for their potential application in photodynamic therapy (PDT) and photodynamic antimicrobial chemotherapy (PACT). However, their MLCT absorption maxima are generally shorter than 600 nm, limiting PDT/PACT application severely. In this work, by incorporating a 5-chloro-8-oxyquinolate-based noninnocent ligand into a merocyanine scaffold Cl-7-IVQ, we obtained a new Ru complex of this ligand, [Ru(bpy)2(Cl-7-IVQ)](2+), which has intense absorption in the window 600-700 nm and enables an efficient (•)OH-mediated DNA photocleavage...
February 20, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28124956/-investigation-of-the-frequency-and-distribution-of-beta-lactamase-genes-in-the-clinical-isolates-of-acinetobacter-baumannii-collected-from-different-regions-of-turkey-a-multicenter-study
#18
Fatih Şaban Beriş, Emine Esra Budak, Duygu Gülek, Aytül Uzun, Zeynep Çizmeci, Fırat Zafer Mengeloğlu, Şahin Direkel, Yeliz Çetinkol, Yasemin Ay Altıntop, Meryem Iraz, Tuba Dal, Safiye Umut Say Coşkun, Pervin Özlem Balcı, Tuba Kayman, Ahmet Çalışkan, Yelda Yazıcı, İsmail Tosun, Ayşe Ertürk, Ayşegül Çopur Çiçek
The diversity and distribution of TEM, SHV and CTX-M type of extended-spectrum beta-lactamases (ESBLs) are important for the treatment and control of infections. Determination of ESBL genes in clinical isolates by polymerase chain reaction (PCR) and DNA sequencing can obtain useful data for their molecular epidemiology and risk. The aim of this study was to investigate the frequency of beta-lactamase genes in Acinetobacter baumannii strains isolated from different regions of Turkey. A total of 519 A.baumannii strains collected from hospitals located at 12 different provinces of Turkey (Bolu (n= 67), Tokat (n= 47), Trabzon (n= 25), Ordu (n= 27), Diyarbakır (n= 47), Niğde (n=31), Kayseri (n= 36), Ankara (n= 41), Kirikkale (n= 26), Kahramanmaraş (n= 25), Mersin (n= 40), Istanbul (n= 107)] between 2011-2012 period were included in the study...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28121497/effect-of-photodynamic-antimicrobial-chemotherapy-on-mono-and-multi-species-cariogenic-biofilms-a-literature-review
#19
Maria Tayara Marques de Freitas, Talyta Teixeira Soares, Maria Gerusa Brito Aragão, Ramille Araújo Lima, Simone Duarte, Iriana Carla Junqueira Zanin
OBJECTIVE: The aim of this literature review is to study the effect of photodynamic antimicrobial chemotherapy (PACT) on mono and multi-species cariogenic biofilms. METHODS: To this purpose, the database, PubMed, was searched using the descriptors, photodynamic therapy, antimicrobial photodynamic chemotherapy, and photoinactivation, associated with the mandatory presence of the word biofilm. A total of 98 references published from 2003 to 2016 were selected. Moreover, literature reviews (15), investigations that did not have biofilms related to dental caries (65), and those that did not have Streptococcus mutans count as an outcome (7) were excluded, yielding a final amount of 11 publications...
January 24, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28115501/towards-better-antimicrobial-susceptibility-testing-impact-of-the-journal-of-antimicrobial-chemotherapy
#20
Mandy Wootton, Alasdair P MacGowan, Robin A Howe
Susceptibility testing of bacteria is one of the most important tests performed in a clinical microbiology laboratory. Improvements in laboratory techniques, especially the move towards standardized susceptibility testing, has provided better consistency and accuracy of testing. When used in conjunction with the most recently developed interpretative criteria, the result is better prediction of the outcome of antimicrobial therapy for infected patients. Throughout the last four decades this Journal has published numerous articles evidencing improvements and new techniques, a valuable source of information for microbiology laboratories...
February 2017: Journal of Antimicrobial Chemotherapy
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