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https://www.readbyqxmd.com/read/28210757/sildenafil-a-phosphodiesterase-type-5-inhibitor-downregulates-osteopontin-in-human-peripheral-blood-mononuclear-cells
#1
Beata Kaleta, Agnieszka Boguska
The aim of this study was to investigate the ability of sildenafil to regulate osteopontin (OPN) gene and protein in peripheral blood mononuclear cells (PBMCs) from healthy blood donors. OPN is expressed by a wide variety of cell types, including immune cells. OPN functions are linked to various physiological and pathological conditions. Sildenafil is a selective inhibitor of type 5 phosphodiesterase. Sildenafil has recently been found to have immunomodulatory effects in animal models and in studies performed in humans...
February 16, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28209182/mesenchymal-stem-cells-alleviate-japanese-encephalitis-virus-induced-neuroinflammation-and-mortality
#2
Peiyu Bian, Chuantao Ye, Xuyang Zheng, Jing Yang, Wei Ye, Yuan Wang, Yun Zhou, Hongwei Ma, Peijun Han, Hai Zhang, Ying Zhang, Fanglin Zhang, Yingfeng Lei, Zhansheng Jia
BACKGROUND: Japanese encephalitis virus (JEV) is the leading cause of viral encephalitis in Asia. Japanese encephalitis (JE) caused by JEV is characterized by extensive inflammatory cytokine secretion, microglia activation, blood-brain barrier (BBB) breakdown, and neuronal death, all of which contribute to the vicious cycle of inflammatory damage. There are currently no effective treatments for JE. Mesenchymal stem cells (MSCs) have been demonstrated to have a therapeutic effect on many central nervous system (CNS) diseases by regulating inflammation and other mechanisms...
February 16, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28205096/pharmacological-effects-of-asiatic-acid-in-glioblastoma-cells-under-hypoxia
#3
Flourina Kumar Thakor, Ka-Wai Wan, Philip John Welsby, Gail Welsby
Glioblastoma multiforme is the most common and malignant primary brain tumor in adults. Despite current treatment options including surgery followed by radiation and chemotherapy with temozolomide and cisplatin, the median survival rate remains low (<16 months). Combined with increasing drug resistance and the inability of some compounds to cross the blood-brain barrier, novel compounds are being sought for the treatment of this disease. Here, we aimed to examine the pharmacological effect of Asiatic acid (AA) in glioblastoma under hypoxia...
February 15, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28203580/unusual-presentation-of-diffuse-large-b-cell-lymphoma-with-splenic-infarcts
#4
Vivek Kumar, Parita Soni, Vishangi Dave, Jonathan Harris
A 67-year-old man presented with a 3-day history of abdominal pain, fever, and significant weight loss over 2 months. Physical examination revealed left upper quadrant tenderness, hepatomegaly, splenomegaly, and bilateral pitting edema but peripheral lymphadenopathy was absent. Laboratory tests showed anemia, thrombocytopenia, elevated prothrombin time (PT), partial thromboplastin time (PTT), and increased lactate dehydrogenase (LDH). PTT was corrected completely in mixing study. Further workup for the cause of coagulopathy revealed decreased levels of all clotting factors except factor VIII and increase fibrinogen levels, which ruled out disseminated intravascular coagulation (DIC)...
January 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28203330/risk-factors-for-health-care-associated-bloodstream-infections-in-a-neonatal-intensive-care-unit
#5
Sabahattin Ertugrul, Fesih Aktar, Ilyas Yolbas, Ahmet Yilmaz, Bilal Elbey, Ahmet Yildirim, Kamil Yilmaz, Recep Tekin
BACKGROUND: Healthcare-associated bloodstream infections (HCA-BSI) are a major cause of morbidity and mortality in neonatal intensive care units (NICUs). OBJECTIVES: We aimed to determine the causative organisms and risk factors of HCA-BSIs in NICUs. METHODS: This study was performed between January 2011 and December 2014 in the neonatal intensive care unit of Dicle university, Turkey. The study consisted of 126 patients (infected group) with positive blood culture and 126 randomly selected patients (uninfected control group) with negative blood culture after four days of hospitalization...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28203096/burden-of-methicillin-resistant-staphylococcus-aureus-pneumonia-among-hospitalized-patients-in-lebanon-and-saudi-arabia
#6
Abdulhakeem O Althaqafi, Madonna J Matar, Rima Moghnieh, Adel F Alothman, Thamer H Alenazi, Fayssal Farahat, Shelby Corman, Caitlyn T Solem, Nirvana Raghubir, Cynthia Macahilig, Seema Haider, Jennifer M Stephens
OBJECTIVES: The objective of this study is to describe the real-world treatment patterns and burden of suspected or confirmed methicillin-resistant Staphylococcus aureus (MRSA) pneumonia in Saudi Arabia and Lebanon. METHODS: A retrospective chart review study evaluated 2011-2012 data from hospitals in Saudi Arabia and Lebanon. Patients were included if they had been discharged with a diagnosis of MRSA pneumonia, which was culture proven or suspected based on clinical criteria...
2017: Infection and Drug Resistance
https://www.readbyqxmd.com/read/28202886/totally-implantable-central-venous-device-associated-blood-stream-infection-in-elderly-malignant-disease-patients
#7
Yasuo Aota, Yuko Okuda, Tsubasa Watanabe, Keitaro Fujiwara, Itaru Nakamura, Tomohisa Yokoyama, Akihiko Gotoh, Michio Sakurai
AIM: We investigated the rate of bloodstream infections in elderly malignant disease patients whose totally implantable central venous device (CV ports) had been removed for any reason at our hospital. METHODS: We evaluated 22 elderly malignant disease patients who had had their CV ports removed for any reason between May 2014 to April 2015. RESULTS: The patients were 12 males and 10 females between 62 and 86 years of age with a median age of 75...
2017: Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
https://www.readbyqxmd.com/read/28197879/impact-of-xpert-mrsa-sa-blood-culture-pcr-assay-on-management-of-positive-blood-cultures-in-obstetric-patients-a-retrospective-audit
#8
A Page, S O'Rourke, M Brennan, L Clooney, D Le Blanc, J Griffin, M Eogan, R J Drew
BACKGROUND: The Xpert MRSA/SA blood culture assay (Cepheid, USA) is a rapid PCR test which can be used for positive blood cultures where Gram-positive cocci in clusters are seen. It can detect Staphylococcus aureus and also the mecA gene, which encodes for β-lactam resistance. The assay was introduced into the Rotunda Hospital for positive blood cultures to allow earlier detection of MRSA and methicillin susceptible S. aureus. AIM: To assess the impact of the Xpert MRSA/SA blood culture assay on the management of obstetric patients with a positive blood culture where Gram-positive cocci in clusters were seen...
February 14, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28195889/a-biodegradable-hemostatic-gelatin-polycaprolactone-composite-for-surgical-hemostasis
#9
Niann-Tzyy Dai, Keng-Yen Fu, Pai-Shan Hsieh, Yu-Min Hung, Yun-Lung Fang, Nien-Chi Huang, Tzu-Wei Lu, Lien-Guo Dai, Shyi-Gen Chen, Tim-Mo Chen
Massive bleeding is the leading cause of battlefield-related deaths and the second leading cause of deaths in civilian trauma centers. One of the challenges of managing severe wounds is the need to promote hemostasis as quickly as possible, which can be achieved by using hemostatic dressings. In this study, we fabricated 2 kinds of gelatin/polycaprolactone composites with 2 ratios of gelatin/polycaprolactone, 1:1 and 2:1 (GP11 and GP21, respectively). Scanning electron microscopy revealed that the GP11 composite exhibited rougher and more porous structure than the GP21 composite did...
February 14, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28195616/clinical-features-and-management-of-subretinal-abscesses-secondary-to-methicillin-resistant-staphylococcus-aureus-endogenous-endophthalmitis
#10
Jorge Fortun, Yasha S Modi, Angela Bessette, Jordan Heffez, Petros Carvounis, Daniel S Petkovsek, Nicholas G Anderson, Daniel Martin, Sunil Srivastava
BACKGROUND AND OBJECTIVE: To describe the clinical features, management, and immediate outcomes of patients with subretinal abscesses secondary to methicillin-resistant Staphylococcus aureus (MRSA) endogenous endophthalmitis. PATIENTS AND METHODS: Eleven eyes of seven patients were identified by retrospective chart review. Demographics, initial presentation, examination findings, imaging, cultures, treatments, and short-term outcomes were reviewed. RESULTS: Eleven eyes of seven patients presented with subretinal abscesses secondary to MRSA endogenous endophthalmitis...
February 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28193504/strong-anti-epstein-barr-virus-ebv-or-cytomegalovirus-cmv-cellular-immune-responses-predict-survival-and-a-favourable-response-to-anti-tuberculosis-therapy
#11
REVIEW
Tumaini Nagu, Said Aboud, Martin Rao, Mecky Matee, Rebecca Axelsson, Davide Valentini, Ferdinand Mugusi, Alimuddin Zumla, Markus Maeurer
BACKGROUND: Intact immune responses to cytomegalovirus (CMV) and Epstein-Barr virus (EBV) represent a biologically and clinically relevant correlate of 'immunological fitness' in humans. However, there is a lack of knowledge concerning anti-EBV or anti-CMV responses in patients with pulmonary tuberculosis (TB), in whom aberrant immune responses may promote progression of clinical disease. METHODS: Venous blood samples were obtained from at the time of (sputum smear positive) pulmonary TB diagnosis...
February 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28191766/concise-review-mesenchymal-stem-cell-therapy-for-pediatric-disease-perspectives-on-success-and-potential-improvements
#12
Christopher R Nitkin, Tracey L Bonfield
Mesenchymal stem cells (MSCs) represent a potentially revolutionary therapy for a wide variety of pediatric diseases, but the optimal cell-based therapeutics for such diversity have not yet been specified. The published clinical trials for pediatric pulmonary, cardiac, orthopedic, endocrine, neurologic, and hematologic diseases provide evidence that MSCs are indeed efficacious, but the significant heterogeneity in therapeutic approaches between studies raises new questions. The purpose of this review is to stimulate new preclinical and clinical trials to investigate these factors...
February 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28191308/ralstonia-mannitolilytica-infections-in-an-oncologic-day-ward-description-of-a-cluster-among-high-risk-patients
#13
Claudia Lucarelli, Enea Gino Di Domenico, Luigi Toma, Domenico Bracco, Grazia Prignano, Maria Fortunati, Lorella Pelagalli, Fabrizio Ensoli, Patrizio Pezzotti, Aurora García-Fernández, Annalisa Pantosti, Loredana Ingrosso
BACKGROUND: Ralstonia spp, an environmental microorganism, has been occasionally associated with healthcare infections. The aim of this study was to investigate an outbreak caused by Ralstonia mannitolilytica in oncology patients. METHODS: Case definition: Oncology outpatients attending a day ward, with positive blood and/or central venous catheter (CVC) culture for Ralstonia spp from September 2013 - June 2014. We analysed medical records, procedures and environmental samples...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/28187059/clinical-and-microbiologic-characteristics-of-early-onset-sepsis-among-vlbw-infants-opportunities-for-antibiotic-stewardship
#14
Sagori Mukhopadhyay, Karen M Puopolo
BACKGROUND: Most very-low birth weight (birth weight <1500 grams, VLBW) infants receive empiric antibiotics for risk of early-onset sepsis (EOS). The objective of this study was to determine the characteristics of VLBW infants with culture-confirmed EOS at a single center during 25 years, to identify opportunities for antibiotic stewardship. METHODS: Retrospective cohort study including VLBW infants admitted from 1990-2015. EOS was defined as isolation of a pathogen in blood or cerebrospinal fluid culture obtained < 72 hours of age...
February 9, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28185626/prevalence-of-concomitant-acute-bacterial-meningitis-in-neonates-with-febrile-urinary-tract-infection-a-retrospective-cross-sectional-study
#15
Sowdhamini S Wallace, Danielle N Brown, Andrea T Cruz
OBJECTIVE: To describe the frequency of concomitant acute bacterial meningitis (ABM) in neonates with febrile urinary tract infection (UTI). STUDY DESIGN: This was a retrospective cross-sectional study from 2005 to 2013 of infants ≤30 days old evaluated in the emergency department of a quaternary care children's hospital with fever and laboratory-confirmed UTI. Definite ABM was defined as cerebrospinal fluid (CSF) culture with growth of pathogenic bacteria and probable ABM if pleocytosis with ≥ 20 white blood cell was present in an antibiotic-pretreated patient...
February 6, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28184390/gold-nanoparticle-interactions-with-endothelial-cells-cultured-under-physiological-conditions
#16
C Freese, L Anspach, R C Deller, S-J Richards, M I Gibson, C J Kirkpatrick, R E Unger
PEGylated gold nanoparticles (AuNPs) have an extended circulation time after intravenous injection in vivo and exhibit favorable properties for biosensing, diagnostic imaging, and cancer treatment. No impact of PEGylated AuNPs on the barrier forming properties of endothelial cells (ECs) has been reported, but recent studies demonstrated that unexpected effects on erythrocytes are observed. Almost all studies to date have been with static-cultured ECs. Herein, ECs maintained under physiological cyclic stretch and flow conditions and used to generate a blood-brain barrier model were exposed to 20 nm PEGylated AuNPs...
February 10, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28183731/c-septicum-complicating-hemolytic-uremic-syndrome-survival-without-surgical-intervention
#17
Rachel M Engen, Elizabeth Y Killien, Jessica L Davis, Jordan M Symons, Silvia M Hartmann
Clostridium septicum is an anaerobic bacterium that causes rapidly progressive myonecrosis, bacteremia, and central nervous system infection. It has been reported as a complication of Escherichia coli hemolytic uremic syndrome (HUS) in 8 children worldwide; 5 children died, and the 3 reported survivors had surgically treated disease. We present 3 cases of C septicum complicating HUS in children, including the first 2 reported cases of survival without surgical intervention. All patients presented with classic cases of HUS with initial clinical improvement followed by deterioration...
February 9, 2017: Pediatrics
https://www.readbyqxmd.com/read/28183301/cellulose-filtration-of-blood-from-malaria-patients-for-improving-ex-vivo-growth-of-plasmodium-falciparum-parasites
#18
Sixbert I Mkumbaye, Daniel T R Minja, Jakob S Jespersen, Michael Alifrangis, Reginald A Kavishe, Steven B Mwakalinga, John P Lusingu, Thor G Theander, Thomas Lavstsen, Christian W Wang
BACKGROUND: Establishing in vitro Plasmodium falciparum culture lines from patient parasite isolates can offer deeper understanding of geographic variations of drug sensitivity and mechanisms of malaria pathogenesis and immunity. Cellulose column filtration of blood is an inexpensive, rapid and effective method for the removal of host factors, such as leucocytes and platelets, significantly improving the purification of parasite DNA in a blood sample. METHODS: In this study, the effect of cellulose column filtration of venous blood on the initial in vitro growth of P...
February 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28178294/histological-observation-of-a-gelatin-sponge-transplant-loaded-with-bone-marrow-derived-mesenchymal-stem-cells-combined-with-platelet-rich-plasma-in-repairing-an-annulus-defect
#19
Xiang Xu, Jianzhong Hu, Hongbin Lu
OBJECTIVE: To research the histological characteristics of a gelatin sponge transplant loaded with goat BMSCs (bone marrow-derived mesenchymal stem cells) combined with PRP (platelet-rich plasma) in repairing an annulus defect. METHOD: BMSCs were separated from the iliac crest of goats, sub-cultured and identified after the third generation. Then, PRP was obtained using blood from the jugular vein of goats via two degrees of centrifugation. In the animal experiments, the goats were divided into the following three groups: a sham group, an injury group and a therapeutic group...
2017: PloS One
https://www.readbyqxmd.com/read/28178107/late-onset-neonatal-sepsis-a-10-year-review-from-north-queensland-australia
#20
Harsha Gowda, Robert Norton, Andrew White, Yogavijayan Kandasamy
OBJECTIVE: Late-onset sepsis (LOS) in neonates contributes significantly to both morbidity and mortality. To determine the incidence of LOS, risk factors for disease, and the impact on subsequent hospital course, we evaluated a cohort of 6340 neonates admitted to the neonatal intensive care unit and of neonates (3-28 days) admitted from the community between January 2005 and January 2016. METHODS: This was a retrospective case review of all neonates admitted with suspected LOS who had positive blood culture and/or cerebrospinal fluid (CSF) cultures, for an organism determined to be a pathogen...
February 1, 2017: Pediatric Infectious Disease Journal
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