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https://www.readbyqxmd.com/read/28230771/antibiotic-resistance-determinant-focused-acinetobacter-baumannii-vaccine-designed-using-reverse-vaccinology
#1
Zhaohui Ni, Yan Chen, Edison Ong, Yongqun He
As one of the most influential and troublesome human pathogens, Acinetobacter baumannii (A. baumannii) has emerged with many multidrug-resistant strains. After collecting 33 complete A. baumannii genomes and 84 representative antibiotic resistance determinants, we used the Vaxign reverse vaccinology approach to predict classical type vaccine candidates against A. baumannii infections and new type vaccine candidates against antibiotic resistance. Our genome analysis identified 35 outer membrane or extracellular adhesins that are conserved among all 33 genomes, have no human protein homology, and have less than 2 transmembrane helices...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230522/multinational-outbreak-of-travel-related-salmonella-chester-infections-in-europe-summers-2014-and-2015
#2
Laure Fonteneau, Nathalie Jourdan Da Silva, Laetitia Fabre, Philip Ashton, Mia Torpdahl, Luise Müller, Brahim Bouchrif, Abdellah El Boulani, Eleni Valkanou, Wesley Mattheus, Ingrid Friesema, Silvia Herrera Leon, Carmen Varela Martínez, Joël Mossong, Ettore Severi, Kathie Grant, François-Xavier Weill, Céline M Gossner, Sophie Bertrand, Tim Dallman, Simon Le Hello
Between 2014 and 2015, the European Centre for Disease Prevention and Control was informed of an increase in numbers of Salmonella enterica serotype Chester cases with travel to Morocco occurring in six European countries. Epidemiological and microbiological investigations were conducted. In addition to gathering information on the characteristics of cases from the different countries in 2014, the epidemiological investigation comprised a matched case-case study involving French patients with salmonellosis who travelled to Morocco that year...
February 16, 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/28230095/genetic-diversity-transmission-dynamics-and-drug-resistance-of-mycobacterium-tuberculosis-in-angola
#3
João Perdigão, Sofia Clemente, Jorge Ramos, Pedro Masakidi, Diana Machado, Carla Silva, Isabel Couto, Miguel Viveiros, Nuno Taveira, Isabel Portugal
Tuberculosis (TB) poses a serious public health problem in Angola. No surveillance data on drug resistance is available and nothing is known regarding the genetic diversity and population structure of circulating Mycobacterium tuberculosis strains. Here, we have genotyped and evaluated drug susceptibility of 89 Mycobacterium tuberculosis clinical isolates from Luanda. Thirty-three different spoligotype profiles corresponding to 24 different Shared International Types (SIT) and 9 orphan profiles were detected...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229367/inhibition-of-mtor-pathway-by-rapamycin-decreases-p-glycoprotein-expression-and-spontaneous-seizures-in-pharmacoresistant-epilepsy
#4
Xiaosa Chi, Cheng Huang, Rui Li, Wei Wang, Mengqian Wu, Jinmei Li, Dong Zhou
The mammalian target of rapamycin (mTOR) has been demonstrated to mediate multidrug resistance in various tumors by inducing P-glycoprotein (P-gp) overexpression. Here, we investigated the correlation between the mTOR pathway and P-gp expression in pharmacoresistant epilepsy. Temporal cortex specimens were obtained from patients with refractory mesial temporal lobe epilepsy (mTLE) and age-matched controls who underwent surgeries at West China Hospital of Sichuan University between June 2014 and May 2015. We established a rat model of epilepsy kindled by coriaria lactone (CL) and screened pharmacoresistant rats (non-responders) using phenytoin...
February 22, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28229205/-spectrum-of-pathogens-in-postoperative-complications-of-visceral-surgery-the-problem-of-multidrug-resistance
#5
A Kramer, J Pochhammer, P Walger, U Seifert, M Ruhnke, J C Harnoss
In general surgery the etiology of surgical site infections has not significantly changed over the last 30 years. Gram-positive bacteria, e.g. coagulase negative staphylococci (CNS), Staphylococcus aureus and Enterococcus spp. as well as Gram-negative bacteria, e.g. Escherichia coli, Enterobacter spp., Klebsiella spp. and Pseudomonas aeruginosa, are the most common findings. Although in general surgery 10% of the S. aureus causing postoperative wound infections were methicillin resistant (MRSA), no cases of multidrug-resistant Gram-negative (MRGN) bacteria were reported...
February 22, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28228969/prevention-and-treatment-of-neonatal-nosocomial-infections
#6
REVIEW
Jayashree Ramasethu
Nosocomial or hospital acquired infections threaten the survival and neurodevelopmental outcomes of infants admitted to the neonatal intensive care unit, and increase cost of care. Premature infants are particularly vulnerable since they often undergo invasive procedures and are dependent on central catheters to deliver nutrition and on ventilators for respiratory support. Prevention of nosocomial infection is a critical patient safety imperative, and invariably requires a multidisciplinary approach. There are no short cuts...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28228226/-progress-of-pd-1-pd-l1-inhibitors-in-non-small-cell-lung-cancer
#7
Zhansheng Jiang, Zhanyu Pan, Xiubao Ren
Pembrolizumab, an inhibitor target programmed death 1 (PD-1), was approved into the first line therapy in advanced non-small cell lung cancer (NSCLC). It was a milestone that immune checkpoints drugs have played an important role in the treatment system of NSCLC. The results of clinical trials revealed the superiority of PD-1/programmed death ligand 1 (PD-L1) inhibitors compared with chemotherapy in first-line, second-line and multidrug resistance phase therapy. Objective response rate (ORR) was up to 80% with pembrolizumab plus chemotherapy, and progression-free survival (PFS) with single pembrolizumab in first line was nearly 1 year (10...
February 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28228075/challenges-in-dermal-delivery-of-therapeutic-antimicrobial-protein-and-peptides
#8
Rohan Aminbhai Lalani, Ambikanandan Misra, Jitendra Amrutiya, Hinal Patel, Priyanka Bhatt, Vivek Patel
BACKGROUND: Protein and peptides in biological system form an important part of innate immune system and are being explored for potential use in various diseases as therapeutics. Importance of proteins and peptides as a new class of antimicrobial agents have boosted research in the field of biotechnology as potential alternative to antibiotic agents. OBJECTIVE: Protein and peptides antimicrobial as a therapeutics class are structurally diverse and exhibit potent activity against microbes by various mechanisms...
February 22, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28228010/selective-fusion-of-heterogeneous-classifiers-for-predicting-substrates-of-membrane-transporters
#9
Naeem Shaikh, Mahesh Sharma, Prabha Garg
Membrane transporters play a crucial role in determining fate of administered drugs in a biological system. Early identification of plausible transporters for a drug molecule can provide insights into its therapeutic, pharmacokinetic and toxicological profile. In the present study, predictive models for classifying small molecules into substrates and non-substrates of various pharmaceutically important membrane transporters are developed using QSAR and proteochemometric (PCM) approaches. For this purpose, 4575 substrate interactions for these transporters were collected from Metabolism and Transport Database (Metrabase) and literature...
February 23, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28225541/perceived-barriers-to-adherence-to-tuberculosis-infection-control-measures-among-health-care-workers-in-the-dominican-republic
#10
Helena J Chapman, Bienvenido A Veras-Estévez, Jamie L Pomeranz, Eddy N Pérez-Then, Belkys Marcelino, Michael Lauzardo
INTRODUCTION Health care workers have an increased risk of infection due to occupational Mycobacterium tuberculosis exposure, including multidrug-resistant strains. Health care workers' risk of developing tuberculosis is greater than that of the general population, whether in low-, intermediate- or high-incidence countries. Adherence to infection control measures (administrative controls, environmental controls, and personal respiratory protection) is essential to reduce risk of disease transmission between suspected tuberculosis patients and health care workers, but for different reasons, both objective and subjective, adherence is low...
January 2017: MEDICC Review
https://www.readbyqxmd.com/read/28225540/antituberculosis-drug-resistance-in-pulmonary-isolates-of-mycobacterium-tuberculosis-cuba-2012-2014
#11
Dihadenys Lemus, Miguel Echemendía, Raúl Díaz, María J Llanes, Lourdes Suárez, Antonio Marrero
INTRODUCTION Systematic surveillance of antituberculosis drug resistance allows identification of multidrug-resistant and extensively drug-resistant isolates of Mycobacterium tuberculosis. Surveillance studies of antituberculosis drug resistance systematically conducted in Cuba for over 15 years have revealed low circulation of multidrug-resistant tuberculosis, under 1% in new cases. OBJECTIVE Characterize antituberculosis drug resistance in isolates of M. tuberculosis recovered from patients with pulmonary tuberculosis in Cuba in 2012-2014...
January 2017: MEDICC Review
https://www.readbyqxmd.com/read/28225345/results-of-xpert-%C3%A2-mtb-rif-implementation-in-kyrgyzstan
#12
G Kurbaniyazova, M Joncevska, S Kalon, G Kalmambetova, T Mohr, A Toktogonova, K Takieva, K M Monirul Islam, F Luelmo
INTRODUCTION: In July 2012, the United States Agency for International Development (USAID) Quality Health Care Project introduced the Xpert® MTB/RIF assay at the facility level of the primary health care system in Kyrgyzstan. This study analysed the results of the implementation of Xpert. MATERIALS AND METHODS: Test results from 2734 patients from July 2012 to December 2014 were analysed. The sensitivity and specificity of Xpert in routine programme conditions were evaluated using culture and phenotypic drug susceptibility testing (DST) as gold standard...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225342/outcomes-from-the-first-multidrug-resistant-tuberculosis-programme-in-kenya
#13
H Huerga, M Bastard, M Kamene, S Wanjala, A Arnold, N Oucho, I Chikwanha, F Varaine
SETTING: In March 2006, the first multidrug-resistant tuberculosis (MDR-TB) treatment programme was implemented in Kenya. OBJECTIVE: To describe patients' treatment outcomes and adverse events. DESIGN: A retrospective case note review of patients started on MDR-TB treatment at two Médecins Sans Frontières-supported sites and the national referral hospital of Kenya was undertaken. Sites operated an ambulatory model of care. Patients were treated for a minimum of 24 months with at least 4-5 drugs for the intensive phase of treatment, including an injectable agent...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225341/patterns-of-drug-resistance-among-patients-with-tuberculous-pleural-effusion-in-greece
#14
V Anastasakos, V Skouras, C Moschos, S Tsikrika, S Karabela, I Marinou, E Vogiatzakis, K Konstantinou, A Papavasiliou, I Kalomenidis
SETTING: Data on the relationship between pleural tuberculosis (TB) and anti-tuberculosis drug resistance are scarce. OBJECTIVE: To determine the patterns of drug resistance among pleural Mycobacterium tuberculosis isolates in Greece and the incidence of tuberculous pleural effusion (TPE) among patients with multidrug-resistant (MDR) or extensively drug-resistant (XDR) pulmonary TB. DESIGN: Drug susceptibility testing (DST) results recorded in the database of the National Reference Centre for Tuberculosis in Athens, Greece, over a 9-year period (2003-2011) were reviewed...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225340/pattern-of-first-and-second-line-drug-resistance-among-pulmonary-tuberculosis-retreatment-cases-in-pakistan
#15
A Javaid, R Hasan, A Zafar, M A Chaudry, S Qayyum, E Qadeer, Z Shaheen, N Agha, N Rizvi, M Z Afridi, M K Chima, A R Khan, A Ghafoor, S Khan, S R Awan, S Akhtar, K Choudry, Z H Iqbal, M Ansarie, N Ahmad
BACKGROUND: Drug resistance in general, and multidrug-resistant tuberculosis (MDR-TB) in particular, threatens global tuberculosis (TB) control efforts. Population-based estimates of drug resistance are needed to develop strategies for controlling drug-resistant TB in Pakistan. OBJECTIVE: To obtain population-based data on Mycobacterium tuberculosis drug resistance in Pakistan. METHODS: To obtain drug resistance data, we conducted a population-based study of TB cases in all provinces of Pakistan...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225339/latent-tuberculous-infection-in-household-contacts-of-multidrug-resistant-and-newly-diagnosed-tuberculosis
#16
G J Fox, N T Anh, N V Nhung, N T Loi, N B Hoa, L T Ngoc Anh, N K Cuong, T N Buu, G B Marks, D Menzies
BACKGROUND: Differences in the prevalence of latent tuberculous infection (LTBI) and tuberculosis (TB) disease among contacts of patients with multidrug-resistant TB (MDR-TB) and drug-susceptible TB are not well understood. OBJECTIVE: To compare the prevalence of tuberculin skin test (TST) positivity in household contacts of patients with MDR-TB and in contacts of patients never previously treated for TB ('new TB'). DESIGN: Consecutive patients with MDR-TB and their household contacts at nine urban district clinics in Viet Nam were screened for TB and LTBI, and followed up for 6 months...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225336/paediatric-tuberculosis-in-queensland-australia-overrepresentation-of-cross-border-and-indigenous-children
#17
E J Donnan, C Coulter, G Simpson, J Clark, C Nourse
SETTING: Queensland, Australia. BACKGROUND: Understanding paediatric tuberculosis (TB) is important, as children with TB typically reflect recent community transmission. Children pose unique diagnostic challenges and are at risk of developing severe disseminated infection. OBJECTIVE: To describe the epidemiology, presentation and outcomes of children with TB disease in Queensland. DESIGN: This is a retrospective case series of children diagnosed with TB aged 0-16 years notified in 2005-2014...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28224730/the-concept-of-crosstalk-directed-embryological-target-mining-and-its-application-to-essential-hypertension-treatment-failures
#18
REVIEW
Alan Alper Sag, Oguzhan Sal, Yagmur Kilic, Emine Meltem Onal, Mehmet Kanbay
This review aims to introduce the novel concept of embryological target mining applied to interorgan crosstalk network genesis, and applies embryological target mining to multidrug-resistant essential hypertension (a prototype, complex, undertreated, multiorgan systemic syndrome) to uncover new treatment targets and critique why existing strategies fail. Briefly, interorgan crosstalk pathways represent the next frontier for target mining in molecular medicine. This is because stereotyped stepwise organogenesis presents a unique opportunity to infer interorgan crosstalk pathways that may be crucial to discovering novel treatment targets...
February 21, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28224028/evaluation-of-antimicrobial-susceptibility-and-integron-carriage-in-helicobacter-pylori-isolates-from-patients
#19
Mehdi Goudarzi, Mohsen Heidary, Mehdi Azad, Maryam Fazeli, Hossein Goudarzi
AIM: The purpose of this study was to determine the antibiotic susceptibility pattern and distribution of integron in H. pylori isolates collected from patients referred to private health care centers in Tehran, Iran. BACKGROUND: Antibiotic resistance is the main reason for failure of Helicobacter pylori therapy. Integrons as genetic reservoirs play main roles in the dissemination of antimicrobial resistance gene. METHODS: During a 12-month cross-sectional study period, 65 H...
December 2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28223798/transferrin-receptor-targeted-ph-sensitive-micellar-system-for-diminution-of-drug-resistance-and-targetable-delivery-in-multidrug-resistant-breast-cancer
#20
Wei Gao, Guihua Ye, Xiaochuan Duan, Xiaoying Yang, Victor C Yang
The emergence of drug resistance is partially associated with overproduction of transferrin receptor (TfR). To overcome multidrug resistance (MDR) and achieve tumor target delivery, we designed a novel biodegradable pH-sensitive micellar system modified with HAIYPRH, a TfR ligand (7pep). First, the polymers poly(l-histidine)-coupled polyethylene glycol-2000 (PHIS-PEG2000) and 7pep-modified 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol-2000 (7pep-DSPE-PEG2000) were synthesized, and the mixed micelles were prepared by blending of PHIS-PEG2000 and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol-2000 (DSPE-PEG2000) or 7pep-DSPE-PEG2000 (7-pep HD micelles)...
2017: International Journal of Nanomedicine
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