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https://www.readbyqxmd.com/read/28106859/burkholderia-cepacia-complex-regulation-of-virulence-gene-expression-a-review
#1
REVIEW
Sílvia A Sousa, Joana R Feliciano, Tiago Pita, Soraia I Guerreiro, Jorge H Leitão
Burkholderia cepacia complex (Bcc) bacteria emerged as opportunistic pathogens in cystic fibrosis and immunocompromised patients. Their eradication is very difficult due to the high level of intrinsic resistance to clinically relevant antibiotics. Bcc bacteria have large and complex genomes, composed of two to four replicons, with variable numbers of insertion sequences. The complexity of Bcc genomes confers a high genomic plasticity to these bacteria, allowing their adaptation and survival to diverse habitats, including the human host...
January 19, 2017: Genes
https://www.readbyqxmd.com/read/28106841/perspective-on-global-measles-epidemiology-and-control-and-the-role-of-novel-vaccination-strategies
#2
REVIEW
Melissa M Coughlin, Andrew S Beck, Bettina Bankamp, Paul A Rota
Measles is a highly contagious, vaccine preventable disease. Measles results in a systemic illness which causes profound immunosuppression often leading to severe complications. In 2010, the World Health Assembly declared that measles can and should be eradicated. Measles has been eliminated in the Region of the Americas, and the remaining five regions of the World Health Organization (WHO) have adopted measles elimination goals. Significant progress has been made through increased global coverage of first and second doses of measles-containing vaccine, leading to a decrease in global incidence of measles, and through improved case based surveillance supported by the WHO Global Measles and Rubella Laboratory Network...
January 19, 2017: Viruses
https://www.readbyqxmd.com/read/28106821/a-protective-vaccine-against-chlamydia-genital-infection-using-vault-nanoparticles-without-an-added-adjuvant
#3
Janina Jiang, Guangchao Liu, Valerie A Kickhoefer, Leonard H Rome, Lin-Xi Li, Stephen J McSorley, Kathleen A Kelly
Chlamydia trachomatis genital infection is the most common sexually transmitted bacterial disease, causing a significant burden to females due to reproductive dysfunction. Intensive screening and antibiotic treatment are unable to completely prevent female reproductive dysfunction, thus, efforts have become focused on developing a vaccine. A major impediment is identifying a safe and effective adjuvant which induces cluster of differentiation 4 (CD4) cells with attributes capable of halting genital infection and inflammation...
January 19, 2017: Vaccines
https://www.readbyqxmd.com/read/28106774/effects-of-long-term-water-aging-on-novel-anti-biofilm-and-protein-repellent-dental-composite
#4
Ning Zhang, Ke Zhang, Mary A S Melo, Michael D Weir, David J Xu, Yuxing Bai, Hockin H K Xu
The aims of this study were to: (1) synthesize an anti-biofilm and protein-repellent dental composite by combining 2-methacryloyloxyethyl phosphorylcholine (MPC) with quaternary ammonium dimethylaminohexadecyl methacrylate (DMAHDM); and (2) evaluate the effects of water-aging for 180 days on protein resistance, bacteria-killing ability, and mechanical properties of MPC-DMAHDM composite. MPC and DMAHDM were added into a resin composite. Specimens were stored in distilled water at 37 °C for 1, 30, 90, and 180 days...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106311/potential-applications-of-non-thermal-plasmas-against-biofilm-associated-microorganisms-in-vitro
#5
REVIEW
Pradeep Puligundla, Chulkyoon Mok
Biofilms as complex microbial communities attached to surfaces are posing several challenges in different sectors, ranging from food and healthcare to desalination and power generation. Biofilms survive in hostile environments due to a distinct physiology and behavior in comparison to their planktonic counterparts. They are ubiquitous, resilient, and difficult to eradicate due to their resistant phenotype. Several chemical-based cleaning and disinfection regimens are conventionally used against biofilm-dwelling microorganisms in vitro...
January 20, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28105389/chemophototherapy-an-emerging-treatment-option-for-solid-tumors
#6
REVIEW
Dandan Luo, Kevin A Carter, Dyego Miranda, Jonathan F Lovell
Near infrared (NIR) light penetrates human tissues with limited depth, thereby providing a method to safely deliver non-ionizing radiation to well-defined target tissue volumes. Light-based therapies including photodynamic therapy (PDT) and laser-induced thermal therapy have been validated clinically for curative and palliative treatment of solid tumors. However, these monotherapies can suffer from incomplete tumor killing and have not displaced existing ablative modalities. The combination of phototherapy and chemotherapy (chemophototherapy, CPT), when carefully planned, has been shown to be an effective tumor treatment option preclinically and clinically...
January 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28104997/poverty-related-diseases-prds-unravelling-complexities-in-disease-responses-in-cameroon
#7
Valerie Makoge, Harro Maat, Lenneke Vaandrager, Maria Koelen
BACKGROUND: In Cameroon, poverty-related diseases (PRDs) are a major public health concern. Research and policies addressing PRDs are based on a particular understanding of the interaction between poverty and disease, usually an association between poverty indicators and health indicators for a specific country or region. Such indicators are useful but fail to explain the nature of the linkages between poverty and disease or poverty and health. This paper presents results of a study among university students, unravelling how they perceive diseases, the linkages with poverty, their responses to diseases and the motivations behind reported responses...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28104695/infectious-disease-risk-and-international-tourism-demand
#8
Jaume Rosselló, Maria Santana-Gallego, Waqas Awan
CONTEXT:  For some countries, favourable climatic conditions for tourism are often associated with favourable conditions for infectious diseases, with the ensuing development constraints on the tourist sectors of impoverished countries where tourism's economic contribution has a high potential. This paper evaluates the economic implications of eradication of Malaria, Dengue, Yellow Fever and Ebola on the affected destination countries focusing on the tourist expenditures. METHODS:  A gravity model for international tourism flows is used to provide an estimation of the impact of each travel-related disease on international tourist arrivals...
January 18, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28104319/the-mexican-consensus-on-probiotics-in-gastroenterology
#9
M A Valdovinos, E Montijo, A T Abreu, S Heller, A González-Garay, D Bacarreza, M Bielsa-Fernández, M C Bojórquez-Ramos, F Bosques-Padilla, A I Burguete-García, R Carmona-Sánchez, A Consuelo-Sánchez, E Coss-Adame, J A Chávez-Barrera, M de Ariño, J Flores-Calderón, O Gómez-Escudero, M S González-Huezo, M E Icaza-Chávez, A Larrosa-Haro, M Morales-Arámbula, C Murata, J A Ramírez-Mayans, J M Remes-Troche, T Rizo-Robles, M Peláez-Luna, E M Toro-Monjaraz, A Torre, M E Urquidi-Rivera, R Vázquez, J K Yamamoto-Furusho, F Guarner
INTRODUCTION: Probiotics are frequently prescribed in clinical practice. Their efficacy in treating gastrointestinal disorders is supported by a significant number of clinical trials. However, the correct prescription of these agents is hampered due to a lack of knowledge of the scientific evidence and to the different presentations and microbial compositions of the probiotics that are currently available. AIM: To provide the clinician with a consensus review of probiotics and recommendations for their use in gastroenterology...
January 16, 2017: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28103777/role-of-iodine-in-metabolism
#10
Szybiński Zbigniew
The natural resources of iodine are seawater, seaweeds and saltpeter-nitrate deposits in Chile. Over 1/3 of the global population is exposed to iodine deficiency, especially in the mountains. Iodine is a component of the thyroid hormones and a strong antioxidant with electric potential of -0.54 V. Iodine as iodide is taken up by the thyroid gland, gastric mucosa, salivary glands and mammary glands in pregnant and breast-feeding women. The transport of iodine to the thyroid gland is regulated by specific enzymes: Natrium-Iodine Symporter, Na+/K+ATP-ase, Pendrin and Apical Iodine Transporter...
January 19, 2017: Recent Patents on Endocrine, Metabolic & Immune Drug Discovery
https://www.readbyqxmd.com/read/28103317/genetically-thermo-stabilised-immunogenic-poliovirus-empty-capsids-a-strategy-for-non-replicating-vaccines
#11
Helen Fox, Sarah Knowlson, Philip D Minor, Andrew J Macadam
While wild type polio has been nearly eradicated there will be a need to continue immunisation programmes for some time because of the possibility of re-emergence and the existence of long term excreters of poliovirus. All vaccines in current use depend on growth of virus and most of the non-replicating (inactivated) vaccines involve wild type viruses known to cause poliomyelitis. The attenuated vaccine strains involved in the eradication programme have been used to develop new inactivated vaccines as production is thought safer...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28103111/oxidative-stress-and-carcinogenesis-potential-of-phytochemicals-in-breast-cancer-therapy
#12
Gilead Ebiegberi Forcados, Dorcas Bolanle James, Abdullahi Balarabe Sallau, Aliyu Muhammad, Peace Mabeta
Breast cancer remains a burden in both developed and developing countries, with higher mortality in developing countries. Attempts to eradicate cancer have not been successful despite the progress made in the development of more novel chemotherapeutic drugs. Reactive-oxygen-species-mediated oxidative stress is known to play a role in breast cancer pathogenesis via genetic and epigenetic modifications, resulting in uncontrolled cell proliferation. Phytochemicals could provide leads for the development of alternative therapeutic agents due to their antioxidant activity, as well as their ability to induce apoptosis in cancer cells...
January 19, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28103033/design-synthesis-and-biological-evaluation-of-small-high-affinity-siglec-7-ligands-toward-novel-inhibitors-of-cancer-immune-evasion
#13
Horst Prescher, Martin Frank, Stephan Gütgemann, Elena Kuhfeldt, Astrid Schweizer, Lars Nitschke, Carsten Watzl, Reinhard Brossmer
Natural killer cells are able to directly lyse tumor cells, thereby participating in the immune surveillance against cancer. Unfortunately, many cancer cells use immune evasion strategies to avoid their eradication by the immune system. A prominent escape strategy of malignant cells is to camouflage themselves with Siglec-7 ligands, thereby recruiting the inhibitory receptor Siglec-7 expressed on the NK cell surface which subsequently inhibits NK-cell-mediated lysis. Here we describe the synthesis and evaluation of the first, high-affinity low molecular weight Siglec-7 ligands to interfere with cancer cell immune evasion...
January 19, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28102941/synthesis-of-primaquine-glyco-conjugates-as-potential-tissue-schizontocidal-antimalarial-agents
#14
Chandra S Azad, Mridula Saxena, Arif J Siddiqui, Jyoti Bhardwaj, Sunil K Puri, Guru P Dutta, Nity Anand, Anil K Saxena
Primaquine (PQ) is the only drug used to prevent relapse of malaria due to P. vivax and P. ovale, by eradicating the dormant liver form of the parasite (hypnozoites). The side effects associated with PQ limits is uses in treatment of malaria. To overcome the premature oxidative deamination and to increase the life span of drug in the biological system the novel glyco-conjugates of PQ were synthesized by coupling of primaquine with hexoses in phosphate buffer. The saccharide part of the hybrid molecules thought to be direct the drug to the liver, where hypnozoites resides...
January 19, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28102876/aging-tumour-cells-to-cure-cancer-pro-senescence-therapy-for-cancer
#15
Arianna Calcinotto, Andrea Alimonti
Robust scientific evidence demonstrates that senes-cence induction in cancer works as a potent weapon to eradicate tumorigenesis. Therapies that enhance senescence not only promote a stable cell growth arrest but also work as a strong stimulus for the acti-vation of the antitumour immune response. However, recent advances suggest that if senescent tumour cells are not cleared from the tumours, they may promote tumour progression and metastasis. In this article, we focus on concepts that are relevant to a pro-senescence therapeutic approach, including caveats, and we propose therapeutic strategies that involve the combined use of pro-senescence therapies with im-munotherapies to promote the clearance of senescent tumour cells...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102347/low-level-predation-by-lytic-phage-phiipla-rodi-promotes-biofilm-formation-and-triggers-the-stringent-response-in-staphylococcus-aureus
#16
Lucía Fernández, Silvia González, Ana Belén Campelo, Beatriz Martínez, Ana Rodríguez, Pilar García
An important lesson from the war on pathogenic bacteria has been the need to understand the physiological responses and evolution of natural microbial communities. Bacterial populations in the environment are generally forming biofilms subject to some level of phage predation. These multicellular communities are notoriously resistant to antimicrobials and, consequently, very difficult to eradicate. This has sparked the search for new therapeutic alternatives, including phage therapy. This study demonstrates that S...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28100890/research-progress-on-the-direct-antiviral-drugs-for-hepatitis-c-virus
#17
Jianjun Gao, Chuanxia Ju
Hepatitis C, caused by the hepatitis C virus (HCV) that attacks the liver and leads to inflammation, is a severe threat to human health. Pegylated interferon α (INF-α) and ribavirin based therapy was once the standard therapy for HCV infection. However, it is suboptimal in efficacy and poorly tolerated in some patients. In the last five years, four classes of direct antiviral drugs (NAAs) that target non-structural proteins (NS) of the virus including NS3/NS4A, NS5A, and NS5B have been developed and opened a new era in HCV treatment as they are more effective and tolerable than the INF-α and ribavirin combination regimen...
January 19, 2017: Bioscience Trends
https://www.readbyqxmd.com/read/28100837/erad-icating-mutant-insulin-promotes-functional-insulin-secretion
#18
Daniel J Moore
Overexpression of a chaperone protein liberates functional insulin from a misfolded mutant partner to improve insulin secretion.
January 18, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28100768/control-of-bovine-tuberculosis-in-a-farmed-red-deer-herd-in-england
#19
F Busch, F Bannerman, S Liggett, F Griffin, J Clarke, K P Lyashchenko, S Rhodes
This report describes how Mycobacterium bovis infection was controlled and eventually eradicated in a farmed red deer herd in the north of England, following sustained tuberculin skin testing supplemented with serological (antibody) tests over a period of approximately two years. By taking advantage of the anamnestic antibody response produced by the skin test to detect skin test-negative, antibody-positive infected individuals, a total of 35 additional animals were identified, including 2 with gross visible lesions typical of bovine tuberculosis (BTB)...
January 21, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28100096/targeting-therapy-resistant-cancer-stem-cells-by-hyperthermia
#20
A L Oei, L E M Vriend, P M Krawczyk, M R Horsman, N A P Franken, J Crezee
Eradication of all malignant cells is the ultimate but challenging goal of anti-cancer treatment; most traditional clinically-available approaches fail because there are cells in a tumor that either escape therapy or become therapy-resistant. A subpopulation of cancer cells, the cancer stem cells (CSCs), is considered to be of particular significance for tumor initiation, progression and metastasis. CSCs are considered in particular to be therapy-resistant and may drive disease recurrence, which positions CSCs in the focus of anti-cancer research, but successful CSC-targeting therapies are limited...
January 19, 2017: International Journal of Hyperthermia
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