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https://www.readbyqxmd.com/read/28944986/development-and-in-vitro-in-vivo-evaluation-of-a-novel-benznidazole-liquid-dosage-form-using-a-quality-by-design-approach
#1
Higo Fernando Santos Souza, Daniel Real, Darío Leonardi, Sandra Carla Rocha, Victoria Alonso, Esteban Serra, Ariel Mariano Silber, Claudio Javier Salomon
OBJECTIVES: To develop an alcohol-free solution suitable for children of benznidazole, the drug of choice for treatment of Chagas disease. METHODS: In a quality-by-design approach a systematic optimization procedure was carried out in order to estimate the values of the factors leading to the maximum drug concentration. The formulations were analyzed in terms of chemical and physical stability and drug content. The final preparation was subjected to an in-vivo palatability assay...
September 25, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28944968/pediatric-vaccine-strain-herpes-zoster-a-case-series
#2
Sean Dreyer, Peera Hemarajata, Marcia Hogeling, Gregory P Henderson
BACKGROUND/OBJECTIVES: Herpes zoster (HZ) is caused by reactivation of the varicella zoster virus (VZV), and typically causes a painful, vesicular, dermatomal rash in adults over the age of fifty. However, HZ has been known to present in immunocompetent pediatric patients, which account for under 1% of total cases. Pediatric cases are typically caused by natural infection with VZV, but among vaccinated children up to half of cases can be due to vaccine-strain VZV. We present two such cases of vaccine-strain HZ in pediatric patients...
September 25, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28944966/inpatient-management-of-children-with-recessive-dystrophic-epidermolysis-bullosa-a-review
#3
REVIEW
Alvin W Li, Brea Prindaville, Scot T Bateman, Timothy E Gibson, Karen Wiss
Recessive dystrophic epidermolysis bullosa is a disorder marked by skin and mucosal blistering after minimal trauma. Even the most routine procedures in the hospital, if done incorrectly, can precipitate extensive skin loss, pain, and scarring. Most providers have little experience working with patients with this degree of skin fragility. When a person with recessive dystrophic epidermolysis bullosa is admitted to the hospital, there are multiple considerations to keep in mind while strategizing an effective care plan: avoidance of new blisters with a "hands-off" approach; careful consideration of all indwelling devices; symptomatic management of pain, itch, and anxiety; coordination of dressing changes; aggressive treatment of skin infections; environmental and staffing considerations; and awareness of other chronic complications that affect care, such as anemia, malnutrition, and chronic pain...
September 25, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28944957/hot-air-treatment-reduces-postharvest-decay-and-delays-softening-of-cherry-tomato-by-regulating-gene-expression-and-activities-of-cell-wall-degrading-enzymes
#4
Yingying Wei, Dandan Zhou, Zhenjie Wang, Sicong Tu, Xingfeng Shao, Jing Peng, Leiqing Pan, Kang Tu
BACKGROUND: Fruit softening facilitates pathogen infection and postharvest decay, leading to the reduction of shelf-life. Hot air (HA) treatment at 38 °C for 12 h is effective in reducing postharvest disease and chilling injury of tomato fruit. To explore the effect and mechanism of HA treatment on reducing postharvest decay and softening of cherry tomato, fruit at the mature green stage were treated with HA and then stored at 20 °C for 15 days. Changes in natural decay incidence, firmness, cell wall compositions, activities and gene expression of cell wall-degrading enzymes of cherry tomatoes were assessed...
September 25, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28944873/coxsackieviruses-b3-infection-of-myocardial-microvascular-endothelial-cells-activates-fractalkine-via-the-erk1-2-signaling-pathway
#5
Jili Wen, Congxin Huang
Infections by pathogens may lead to cardiovascular diseases, including acute/chronic myocarditis. (Coxsackieviruses B3) CVB3 is considered to be the most common causative agent in m‑yocarditis, which can lead to dilated cardiomyopathy. The present study aimed to investigate the mechanism of CVB3‑infected myocardial microvascular endothelial cells. The CVB3 infection was detected by 50% tissue culture infective dose (TCID50). The role of fractalkine (FKN) in the infection was detected using western blotting and RNA interference...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944845/efficient-inhibition-of-duck-hepatitis-b-virus-dna-by-the-crispr-cas9-system
#6
Qingfen Zheng, Li Bai, Sujun Zheng, Mei Liu, Jinyan Zhang, Ting Wang, Zhongwei Xu, Yu Chen, Jiansheng Li, Zhongping Duan
Current therapeutic strategies cannot eradicate hepatitis B virus covalently closed circular DNA (HBV cccDNA), which accounts for the persistence of HBV infection. Very recently, the clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR‑associated protein 9 (Cas9) system has been used as an efficient and powerful tool for viral genome editing. Given that the primary duck hepatocyte (PDH) infected with duck hepatitis B virus (DHBV) has been widely used to study human HBV infection in vitro, the present study aimed to demonstrate the targeted inhibition of DHBV DNA, especially cccDNA, by the CRISPR/Cas9 system using this model...
September 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944771/the-spectrum-of-t-cell-metabolism-in-health-and-disease
#7
REVIEW
Glenn R Bantug, Lorenzo Galluzzi, Guido Kroemer, Christoph Hess
In healthy individuals, metabolically quiescent T cells survey lymph nodes and peripheral tissues in search of cognate antigens. During infection, T cells that encounter cognate antigens are activated and - in a context-specific manner - proliferate and/or differentiate to become effector T cells. This process is accompanied by important changes in cellular metabolism (known as metabolic reprogramming). The magnitude and spectrum of metabolic reprogramming as it occurs in T cells in the context of acute infection ensure host survival...
September 25, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28944770/targeting-microbial-biofilms-current-and-prospective-therapeutic-strategies
#8
REVIEW
Hyun Koo, Raymond N Allan, Robert P Howlin, Paul Stoodley, Luanne Hall-Stoodley
Biofilm formation is a key virulence factor for a wide range of microorganisms that cause chronic infections. The multifactorial nature of biofilm development and drug tolerance imposes great challenges for the use of conventional antimicrobials and indicates the need for multi-targeted or combinatorial therapies. In this Review, we focus on current therapeutic strategies and those under development that target vital structural and functional traits of microbial biofilms and drug tolerance mechanisms, including the extracellular matrix and dormant cells...
September 25, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/28944769/erratum-protein-malnutrition-promotes-dysregulation-of-molecules-involved-in-t-cell-migration-in-the-thymus-of-mice-infected-with-leishmania-infantum
#9
Monica Losada-Barragán, Adriana Umaña-Pérez, Sergio Cuervo-Escobar, Luiz Ricardo Berbert, Renato Porrozzi, Fernanda N Morgado, Daniella Areas Mendes-da-Cruz, Wilson Savino, Myriam Sánchez-Gómez, Patricia Cuervo
This corrects the article DOI: 10.1038/srep45991.
September 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28944685/hiv-testing-and-sexual-risks-among-migrant-men-who-have-sex-with-men-findings-from-a-large-cross-sectional-study-in-beijing-china
#10
Yu Liu, Sten H Vermund, Yuhua Ruan, Hongjie Liu, Chen Zhang, Lu Yin, Yiming Shao, Han-Zhu Qian
Despite the exacerbating HIV transmission among migrant men who have sex with men (MSM) in China, few epidemiological studies explore their HIV testing/risk profiles. We sought to explore sociodemographic/behavioral correlates of HIV/syphilis and HIV testing among migrant MSM. A study was conducted among 3,588 HIV-uninfected MSM. Participants were recruited via short message services, peer referral, web-advertisement and community outreach. HIV/syphilis infections were lab-confirmed. Migrant MSM were more likely to be HIV-infected compared to local MSM...
September 25, 2017: AIDS Care
https://www.readbyqxmd.com/read/28944617/genetic-diversity-anti-microbial-resistance-plasmid-profile-and-frequency-of-the-vi-antigen-in-salmonella-dublin-strains-isolated-in-brazil
#11
F P Vilela, M R Frazão, D P Rodrigues, R G Costa, M R T Casas, S A Fernandes, J P Falcão, F Campioni
Salmonella Dublin is strongly adapted to cattle causing enteritis and/or systemic disease with high rates of mortality. However, it can be sporadically isolated from humans, usually causing serious disease, especially in patients with underlying chronic diseases. The aim of this study was to molecularly type S. Dublin strains isolated from humans and animals in Brazil to verify the diversity of these strains as well as to ascertain possible differences between strains isolated from humans and animals. Moreover, the presence of the capsular antigen Vi and the plasmid profile was characterized in addition to the anti-microbial resistance against 15 drugs...
September 24, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28944602/hepatitis-e-virus-and-related-viruses-in-wild-domestic-and-zoo-animals-a-review
#12
REVIEW
C Spahr, T Knauf-Witzens, T Vahlenkamp, R G Ulrich, R Johne
Hepatitis E is a human disease mainly characterized by acute liver illness, which is caused by infection with the hepatitis E virus (HEV). Large hepatitis E outbreaks have been described in developing countries; however, the disease is also increasingly recognized in industrialized countries. Mortality rates up to 25% have been described for pregnant women during outbreaks in developing countries. In addition, chronic disease courses could be observed in immunocompromised transplant patients. Whereas the HEV genotypes 1 and 2 are mainly confined to humans, genotypes 3 and 4 are also found in animals and can be zoonotically transmitted to humans...
September 24, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28944601/an-advanced-multifunctional-hydrogel-based-dressing-for-wound-monitoring-and-drug-delivery
#13
Bahram Mirani, Erik Pagan, Barbara Currie, Mohammad Ali Siddiqui, Reihaneh Hosseinzadeh, Pooria Mostafalu, Yu Shrike Zhang, Aziz Ghahary, Mohsen Akbari
Wound management is a major global challenge and poses a significant financial burden to the healthcare system due to the rapid growth of chronic diseases such as diabetes, obesity, and aging population. The ability to detect pathogenic infections and release drug at the wound site is of the utmost importance to expedient patient care. Herein, this study presents an advanced multifunctional dressing (GelDerm) capable of colorimetric measurement of pH, an indicator of bacterial infection, and release of antibiotic agents at the wound site...
September 25, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28944569/prognostic-factors-and-treatment-outcomes-for-patients-with-fournier-s-gangrene-a-retrospective-study
#14
Kyung Sook Hong, Hee Jung Yi, Ryung-Ah Lee, Kwang Ho Kim, Soon Sup Chung
Fournier's gangrene is a gas-forming, necrotising soft tissue infection affecting the perineum. It spreads rapidly along the deep fascial planes and is associated with a high mortality rate. With a growing elderly population with comorbidities, the frequency of severe cases of Fournier's gangrene is expected to increase. We retrospectively reviewed 20 patients diagnosed with Fournier's gangrene at our institution from 2003 to 2014 and analysed data. Thirteen patients had diabetes mellitus, two had been diagnosed with liver cirrhosis, and four were chronic alcoholics...
September 25, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28944509/diagnosis-and-treatment-of-patients-with-prostatic-abscess-in-the-post-antibiotic-era
#15
REVIEW
Anne Lenore Ackerman, Pooja S Parameshwar, Jennifer T Anger
We reviewed the pathogenesis, clinical presentation, treatment options and outcomes of prostatic abscess in the post-antibiotic era, focusing on how patient risk factors and the emergence of multidrug-resistant organisms influence management of the condition. A MEDLINE search for "prostate abscess" or "prostatic abscess" was carried out. Prostate abscess is no longer considered a consequence of untreated urinary infection; now, men with prostatic abscess are typically debilitated or immunologically compromised, with >50% of patients having diabetes...
September 24, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28944502/immune-reconstitution-inflammatory-syndrome-in-non-hiv-immunosuppressed-patients
#16
REVIEW
Hirohiko Sueki, Yoshiko Mizukawa, Yumi Aoyama
Immune reconstitution inflammatory syndrome (IRIS) represents a clinical phenomenon of immune-mediated inflammation against various antigens, including pathogenic microorganisms, drugs and unknown autoantigens, during recovery from immunosuppressed conditions. IRIS has become well recognized in HIV-infected populations. However, IRIS has seldom been recognized in HIV-negative immunocompromised patients. In the last 15 years, the immunopathogenesis of drug-induced hypersensitivity syndrome (DIHS) has been largely determined...
September 25, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28944485/effect-of-repeated-exposure-to-aqui-s-%C3%A2-on-the-viability-and-growth-of-neoparamoeba-perurans
#17
R J Chance, Z Allcock, C J Secombes, B Collet, C Collins
There have been recent efforts amongst immunologists to develop approaches for following individual fish during challenges with viral and bacterial pathogens. This study contributes to assessing the feasibility of using such approaches to study amoebic gill disease (AGD). Neoparamoeba perurans, agent of AGD, has been responsible for widespread economic and fish loss in salmonid aquaculture. With the emergence of AGD in Europe, research into infection dynamics and host response has increased. This study investigated the effect of repeat exposure to anaesthesia, a necessary requirement when following disease progression in individual fish, on N...
September 25, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28944313/effect-of-tobacco-control-policies-on-perinatal-and-child-health-a-systematic-review-and-meta-analysis
#18
Timor Faber, Arun Kumar, Johan P Mackenbach, Christopher Millett, Sanjay Basu, Aziz Sheikh, Jasper V Been
BACKGROUND: Tobacco smoking and smoke exposure during pregnancy and childhood cause considerable childhood morbidity and mortality. We did a systematic review and meta-analysis to investigate whether implementation of WHO's recommended tobacco control policies (MPOWER) was of benefit to perinatal and child health. METHODS: We searched 19 electronic databases, hand-searched references and citations, and consulted experts to identify studies assessing the association between implementation of MPOWER policies and child health...
September 2017: Lancet. Public Health
https://www.readbyqxmd.com/read/28944300/proteomic-analysis-of-extracellular-vesicles-from-a-plasmodium-falciparum-kenyan-clinical-isolate-defines-a-core-parasite-secretome
#19
Abdirahman Abdi, Lu Yu, David Goulding, Martin K Rono, Philip Bejon, Jyoti Choudhary, Julian Rayner
BACKGROUND: Many pathogens secrete effector molecules to subvert host immune responses, to acquire nutrients, and/or to prepare host cells for invasion. One of the ways that effector molecules are secreted is through extracellular vesicles (EVs) such as exosomes. Recently, the malaria parasite P. falciparum has been shown to produce EVs that can mediate transfer of genetic material between parasites and induce sexual commitment. Characterizing the content of these vesicles may improve our understanding of P...
2017: Wellcome Open Research
https://www.readbyqxmd.com/read/28944299/geographic-genetic-analysis-of-plasmodium-falciparum-parasite-populations-from-surveys-of-primary-school-children-in-western-kenya
#20
Irene Omedo, Polycarp Mogeni, Kirk Rockett, Alice Kamau, Christina Hubbart, Anna Jeffreys, Lynette Isabella Ochola-Oyier, Etienne P de Villiers, Caroline W Gitonga, Abdisalan M Noor, Robert W Snow, Dominic Kwiatkowski, Philip Bejon
Background. Malaria control, and finally malaria elimination, requires the identification and targeting of residual foci or hotspots of transmission. However, the level of parasite mixing within and between geographical locations is likely to impact the effectiveness and durability of control interventions and thus should be taken into consideration when developing control programs. Methods. In order to determine the geographic-genetic patterns of Plasmodium falciparum parasite populations at a sub-national level in Kenya, we used the Sequenom platform to genotype 111 genome-wide distributed single nucleotide polymorphic (SNP) positions in 2486 isolates collected from children in 95 primary schools in western Kenya...
2017: Wellcome Open Research
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