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https://www.readbyqxmd.com/read/29793059/longitudinal-surveillance-of-drug-resistance-in-plasmodium-falciparum-isolates-from-the-china-myanmar-border-reveals-persistent-circulation-of-multidrug-resistant-parasites
#1
Yao Bai, Jiaqi Zhang, Jinting Geng, Shiling Xu, Shuang Deng, Weilin Zeng, Zenglei Wang, Huguette Gaelle Ngassa Mbenda, Jie Zhang, Na Li, Yanrui Wu, Cuiying Li, Huae Liu, Yonghua Ruan, Yaming Cao, Zhaoqing Yang, Liwang Cui
Multidrug-resistant Plasmodium falciparum in the Greater Mekong Subregion of Southeast Asia is a major threat to malaria elimination and requires close surveillance. In this study, we collected 107 longitudinal clinical samples of P. falciparum in 2007-2012 from the malaria hypoendemic region of the China-Myanmar border and measured their in vitro susceptibilities to 10 antimalarial drugs. Overall, parasites had significantly different IC50 values to all the drugs tested as compared to the reference 3D7 strain...
May 21, 2018: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/29792562/combined-effects-and-cross-interactions-of-different-antibiotics-and-polypeptides-in-salmonella-bredeney
#2
Xiangyu Ju, Mengjiao Zhu, Jinzhi Han, Zhaoxin Lu, Haizhen Zhao, Xiaomei Bie
Salmonella spp. are health-threatening foodborne pathogens. The increasingly common spread of antibiotic-resistant Salmonella spp. is a major public healthcare issue worldwide. In this study, we wished to explore (1) antibiotic or polypeptide combinations to inhibit multidrug-resistant Salmonella bredeney and (2) the regulation of cross-resistance and collateral sensitivity of antibiotics and polypeptides. We undertook a study to select antibiotic combinations. Then, we promoted drug-resistant strains of S...
May 24, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29792559/frozen-white-leg-shrimp-litopenaeus-vannamei-in-korean-markets-as-a-source-of-aeromonas-spp-harboring-antibiotic-and-heavy-metal-resistance-genes
#3
Benthotage C J De Silva, Sabrina Hossain, Pasan S Dahanayake, Gang-Joon Heo
As the most consumed shrimp variety, white-leg shrimp (Litopenaeus vannamei) owns a high market demand in Korea. This study sought to screen the frozen white-leg shrimp for Aeromonas spp. harboring antimicrobial and heavy metal resistance characteristics. A total of 44 Aeromonas spp. strains were isolated and tested for antibiotic susceptibility and heavy metal tolerance followed by PCR-based detection of resistance genes and integrons. It was observed that resistance to ampicillin and oxacillin was 100% among isolates...
May 24, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29792233/antibiotic-resistance-and-molecular-characterization-of-diarrheagenic-escherichia-coli-and-non-typhoidal-salmonella-strains-isolated-from-infections-in-southwest-china
#4
Shun-Xian Zhang, Yong-Ming Zhou, Li-Guang Tian, Jia-Xu Chen, Rita Tinoco-Torres, Emmanuel Serrano, Shi-Zhu Li, Shao-Hong Chen, Lin Ai, Jun-Hu Chen, Shang Xia, Yan Lu, Shan Lv, Xue-Jiao Teng, Wen Xu, Wen-Peng Gu, Si-Tang Gong, Xiao-Nong Zhou, Lan-Lan Geng, Wei Hu
BACKGROUND: Bacterial diarrhea is one of the most common causes for medical consultations, mortality and morbidity in the world. Diarrheagenic Escherichia coli (DEC) and non-typhoidal Salmonella (NTS) are major intestinal pathogens in developing countries, and the indiscriminate use of antibiotics has greatly contributed to resistant strains. Hence, the aim of the present study is to identify the antimicrobial resistance patterns and the molecular characteristics of DEC and NTS in southwest, China...
May 7, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29791609/association-between-multidrug-resistance-1-c3435t-gene-polymorphism-and-right-ventricular-dysfunction-in-patients-with-chronic-obstructive-pulmonary-disease-cross-sectional-study
#5
Oğuzhan Yücel, Hakan Güneş, Hasan Yücel, Ali Zorlu
BACKGROUND: Right ventricular (RV) dysfunction may develop over the course of chronic obstructive pulmonary disease (COPD) and is an important predictor of morbidity and mortality. Polymorphism of the multidrug resistance-1 (MDR-1) gene has been correlated with worse clinical findings among patients with COPD. Our aim here was to investigate the relationship between MDR-1 C3435T gene polymorphism and RV dysfunction in COPD patients. DESIGN AND SETTING: This was a cross-sectional study investigating the relationship between RV dysfunction and genetic defects in COPD patients...
March 2018: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29791559/sequential-analysis-as-a-tool-for-detection-of-amikacin-ototoxicity-in-the-treatment-of-multidrug-resistant-tuberculosis
#6
Karla Anacleto de Vasconcelos, Silvana Maria Monte Coelho Frota, Antonio Ruffino-Netto, Afrânio Lineu Kritski
OBJECTIVE: To investigate early detection of amikacin-induced ototoxicity in a population treated for multidrug-resistant tuberculosis (MDR-TB), by means of three different tests: pure-tone audiometry (PTA); high-frequency audiometry (HFA); and distortion-product otoacoustic emission (DPOAE) testing. METHODS: This was a longitudinal prospective cohort study involving patients aged 18-69 years with a diagnosis of MDR-TB who had to receive amikacin for six months as part of their antituberculosis drug regimen for the first time...
April 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29791557/new-and-repurposed-drugs-to-treat-multidrug-and-extensively-drug-resistant-tuberculosis
#7
Denise Rossato Silva, Margareth Dalcolmo, Simon Tiberi, Marcos Abdo Arbex, Marcela Munoz-Torrico, Raquel Duarte, Lia D'Ambrosio, Dina Visca, Adrian Rendon, Mina Gaga, Alimuddin Zumla, Giovanni Battista Migliori
Multidrug-resistant and extensively drug-resistant tuberculosis (MDR-TB and XDR-TB, respectively) continue to represent a challenge for clinicians and public health authorities. Unfortunately, although there have been encouraging reports of higher success rates, the overall rate of favorable outcomes of M/XDR-TB treatment is only 54%, or much lower when the spectrum of drug resistance is beyond that of XDR-TB. Treating M/XDR-TB continues to be a difficult task, because of the high incidence of adverse events, the long duration of treatment, the high cost of the regimens used, and the drain on health care resources...
April 2018: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29791488/comparison-of-the-validity-of-smear-and-culture-conversion-as-a-prognostic-marker-of-treatment-outcome-in-patients-with-multidrug-resistant-tuberculosis
#8
Kefyalew Addis Alene, Kerri Viney, Hengzhong Yi, Emma S McBryde, Kunyun Yang, Liqiong Bai, Darren J Gray, Zuhui Xu, Archie C A Clements
BACKGROUND: The World Health Organization (WHO) has conditionally recommended the use of sputum smear microscopy and culture examination for the monitoring of multidrug-resistant tuberculosis (MDR-TB) treatment. We aimed to assess and compare the validity of smear and culture conversion at different time points during treatment for MDR-TB, as a prognostic marker for end-of-treatment outcomes. METHODS: We undertook a retrospective observational cohort study using data obtained from Hunan Chest Hospital, China and Gondar University Hospital, Ethiopia...
2018: PloS One
https://www.readbyqxmd.com/read/29791177/-acquired-hemophilia-a-case-report
#9
Štefan Sotak, Miriam Mitníková
Case report of a 74-year-old male with acquired hemophilia A, whose etiology was not found, confirmed by hemocoagulation examinations, with clinical manifestation of protracted macroscopic hematuria, spontaneous skin and intramuscular bleedings. Treatment comprised conservative therapy administration of hemostyptics, red blood cells transfusions application of recombinant human factor VII (rFVII) and immunosuppression. Finally, patient died due to nosocomial infection caused by multidrug-resistant pulmonary pathogen...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29790623/the-analysis-of-microbial-spectrum-and-antibiotic-resistance-of-uropathogens-isolated-from-patients-with-urinary-stones
#10
Dong Chen, Yuyan Zhang, Jian Huang, Xiongfa Liang, Tao Zeng, Chuangxin Lan, Xiaolu Duan, Zhijian Zhao, Guohua Zeng, Hans-Göran Tiselius, Xiaogang Lu, Wenqi Wu
PURPOSE: The characteristics and resistance patterns of urine bacteriology in patients with urinary tract stones have not been extensively studied. This study aims to investigate the microbial spectrum and antibiotic resistance of uropathogens isolated from urinary tract infections in patients with urinary stones and provide a basis for appropriate antimicrobial treatments. METHODS: The results of positive bladder midstream urine cultures and their antimicrobial susceptibility were retrospectively analysed from hospitalised patients with diagnosis of urinary calculi and urinary tract infections between January 2010 and December 2015...
May 23, 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29790264/immune-responses-against-tumor-associated-antigen-derived-cytotoxic-t-lymphocyte-epitopes-in-cholangiocarcinoma-patients
#11
Akihiko Kida, Eishiro Mizukoshi, Toshikatsu Tamai, Takeshi Terashima, Masaaki Kitahara, Kuniaki Arai, Tatsuya Yamashita, Kazumi Fushimi, Masao Honda, Shuichi Kaneko
BACKGROUND & AIMS: Immunotherapy is a promising treatment option for cholangiocarcinoma. We compared cytotoxic T lymphocyte (CTL) responses against several tumor-associated antigen (TAA)-derived epitopes in cholangiocarcinoma patients to identify candidate epitopes for immunotherapy. METHODS: Twenty-six TAAs were selected, and the expression of TAAs in 6 cholangiocarcinoma cell lines and 9 specimens were measured using real-time polymerase chain reaction (PCR)...
May 23, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29789423/atp-binding-cassette-member-b5-abcb5-promotes-tumor-cell-invasiveness-in-human-colorectal-cancer
#12
Qin Guo, Tanja Grimmig, Gabriel Gonzalez, Anita Giobbie-Hurder, Gretchen Berg, Nolan Carr, Brian J Wilson, Pallavi Banerjee, Jie Ma, Jason S Gold, Bisweswar Nandi, Qin Huang, Ana Maria Waaga-Gasser, Christine G Lian, George F Murphy, Markus H Frank, Martin Gasser, Natasha Y Frank
ATP-binding cassette member B5 (ABCB5) mediates multidrug resistance (MDR) in diverse malignancies and confers clinically relevant 5-fluorouracil resistance to CD133-expressing cancer stem cells (CSCs) in human colorectal cancer (CRC). Because of its recently identified roles in normal stem cell maintenance, we hypothesized that ABCB5 might also serve MDR-independent functions in CRC. Here, in a prospective clinical study of 142 CRC patients, we found that ABCB5 mRNA transcripts previously reported not to be significantly expressed in healthy peripheral blood mononuclear cells are significantly enriched in patient peripheral blood specimens compared with non-CRC controls and correlate with CRC disease progression...
May 22, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29789189/antimicrobial-susceptibility-of-enterobacteriaceae-and-pseudomonas-aeruginosa-isolates-from-united-states-medical-centers-stratified-by-infection-type-results-from-the-international-network-for-optimal-resistance-monitoring-inform-surveillance-program-2015
#13
Helio S Sader, Mariana Castanheira, Leonard R Duncan, Robert K Flamm
A total of 18,656 Enterobacteriaceae and 4,175 Pseudomonas aeruginosa were consecutively collected from 85 US hospitals and tested for susceptibility by broth microdilution methods in a central monitoring laboratory (JMI Laboratories). The antimicrobial susceptibility and frequency of key resistance phenotypes were assessed and stratified by infection type as follows: bloodstream (BSI; 3,434 isolates; 15.0%), pneumonia (6,439; 28.2%), skin and skin structure (SSSI; 4,134; 18.1%), intra-abdominal (IAI; 951; 4...
April 26, 2018: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29789128/prostaglandin-e2-attenuates-synergistic-bactericidal-effects-between-cox-inhibitors-and-antibiotics-on-staphylococcus-aureus
#14
Jia-Yi Cai, Yong-Na Hou, Jian Li, Kai Ma, Guo-Dong Yao, Wei-Wei Liu, Toshihiko Hayashi, Kikuji Itoh, Shin-Ichi Tashiro, Satoshi Onodera, Takashi Ikejima
PGE2 is found to attenuate the bactericidal effects of kanamycin or ampicillin in Staphylococcus aureus, as well as the methicillin-resistant S. aureus (MRSA). Co-treatment with cyclooxygenase (COX) inhibitors (celecoxib, aspirin or naproxen) synergistically enhances kanamycin or ampicillin-induced cell death of S. aureus and MRSA. COX inhibitors repressed bacterial multidrug resistance through down-regulating efflux pump activity in antibiotics-treated S. aureus and MRSA. However, this synergistic bactericidal effects are reduced by the treatment with PGE2...
June 2018: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29788948/genechip-analysis-of-resistant-mycobacterium-tuberculosis-with-previously-treated-tuberculosis-in-changchun
#15
Ming-Jin Zhang, Wen-Zhi Ren, Xue-Juan Sun, Yang Liu, Ke-Wei Liu, Zhong-Hao Ji, Wei Gao, Bao Yuan
BACKGROUND: With the widespread use of rifampicin and isoniazid, bacterial resistance has become a growing problem. Additionally, the lack of relevant baseline information for the frequency of drug-resistant tuberculosis (TB) gene mutations is a critical issue, and the incidence of this infection in the city of Changchun has not investigated to date. However, compared with the slow traditional methods of drug susceptibility testing, recently developed detection methods, such as rifampicin and isoniazid resistance-related gene chip techniques, allow for rapid, easy detection and simultaneous testing for mutation frequency and drug resistance...
May 22, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29788916/in-silico-exploration-of-red-sea-bacillus-genomes-for-natural-product-biosynthetic-gene-clusters
#16
Ghofran Othoum, Salim Bougouffa, Rozaimi Razali, Ameerah Bokhari, Soha Alamoudi, André Antunes, Xin Gao, Robert Hoehndorf, Stefan T Arold, Takashi Gojobori, Heribert Hirt, Ivan Mijakovic, Vladimir B Bajic, Feras F Lafi, Magbubah Essack
BACKGROUND: The increasing spectrum of multidrug-resistant bacteria is a major global public health concern, necessitating discovery of novel antimicrobial agents. Here, members of the genus Bacillus are investigated as a potentially attractive source of novel antibiotics due to their broad spectrum of antimicrobial activities. We specifically focus on a computational analysis of the distinctive biosynthetic potential of Bacillus paralicheniformis strains isolated from the Red Sea, an ecosystem exposed to adverse, highly saline and hot conditions...
May 22, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29788910/infection-with-high-proportion-of-multidrug-resistant-bacteria-in-conflict-related-injuries-is-associated-with-poor-outcomes-and-excess-resource-consumption-a-cohort-study-of-syrian-patients-treated-in-jordan
#17
Andreas Älgå, Sidney Wong, Muhammad Shoaib, Kalle Lundgren, Christian G Giske, Johan von Schreeb, Jonas Malmstedt
BACKGROUND: Armed conflicts are a major contributor to injury and death globally. Conflict-related injuries are associated with a high risk of wound infection, but it is unknown to what extent infection directly relates to sustainment of life and restoration of function. The aim of this study was to investigate the outcome and resource consumption among civilians receiving acute surgical treatment due to conflict-related injuries. Patients with and without wound infections were compared...
May 22, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29788331/clinical-and-cardiac-safety-of-long-term-levofloxacin-in-children-treated-for-multidrug-resistant-tuberculosis
#18
Anthony J Garcia-Prats, Heather R Draper, Heather Finlayson, Jana Winckler, André Burger, Barend Fourie, Stephanie Thee, Anneke C Hesseling, H Simon Schaaf
Safety concerns persist for long-term pediatric fluoroquinolone use. Seventy children (median age 2.1 years) treated with levofloxacin 10-20 mg/kg once daily for multidrug-resistant tuberculosis (median observation time 11.8 months) had few musculoskeletal events, no levofloxacin-attributed serious adverse events, and no QTcF >450 ms. Long-term levofloxacin was safe and well tolerated.
May 16, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29788125/toxin-antitoxin-systems-and-regulatory-mechanisms-in-mycobacterium-tuberculosis
#19
Richard A Slayden, Clinton C Dawson, Jason E Cummings
There has been a significant reduction in annual tuberculosis incidence since the World Health Organization declared tuberculosis a global health threat. However, treatment of M. tuberculosis infections requires lengthy multidrug therapeutic regimens to achieve a durable cure. The development of new drugs that are active against resistant strains and phenotypically diverse organisms continues to present the greatest challenge in the future. Numerous phylogenomic analyses have revealed that the Mtb genome encodes a significantly expanded repertoire of toxin-antitoxin (TA) loci that makes up the Mtb TA system...
June 1, 2018: Pathogens and Disease
https://www.readbyqxmd.com/read/29788067/control-of-multidrug-resistant-pseudomonas-aeruginosa-in-allogeneic-hematopoietic-stem-cell-transplant-recipients-by-a-novel-bundle-including-remodeling-of-sanitary-and-water-supply-systems
#20
(no author information available yet)
No abstract text is available yet for this article.
May 16, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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