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https://www.readbyqxmd.com/read/28323232/suspected-giant-cell-aortitis-from-multiple-aortic-structural-damage-to-fatal-listeria-sepsi-a-case-report
#1
Valeria Silvestri, Giacomo Isernia
Giant cell arteritis ( GCA) is an inflammatory vasculopathy affecting large and middle-sized vessels , specifically cranial arteries derived from carotid artery. Isolated extracranial vessel involvement can occur. Interest in extravascular manifestations is recently increasing because of diffusion of sensitive and specific imaging tools such as 18FDG PET TC . Patients have an increased relative risk of severe infection. Listeria monocytogenes infection risk is increased, and vascular system involvement and graft infection have been, even though rarely, reported...
March 16, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28322309/multiplex-reverse-transcription-loop-mediated-isothermal-amplification-coupled-with-cascade-invasive-reaction-and-nanoparticle-hybridization-for-subtyping-of-influenza-a-virus
#2
Ying Chi, Yiyue Ge, Kangchen Zhao, Bingjie Zou, Bin Liu, Xian Qi, Qian Bian, Zhiyang Shi, Fengcai Zhu, Minghao Zhou, Lunbiao Cui, Chuan Su
Considering the fatal human victims and economic loss caused by influenza virus infection every year, methodologies for rapid and on-site detection of influenza viruses are urgently needed. LAMP is the most commonly used nucleic acid isothermal amplification technology suitable for on-site use. However, for multiplex LAMP, differentiation of the amplicons derived from multiple targets is still challengeable currently. Here we developed a multiplex RT-LAMP assay for simultaneous amplification of three prominent subtypes of influenza viruses (A/H5, A/H7 and 2009A/H1)...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28318191/a-fatal-clostridium-perfringens-infection-with-hemolysis-after-chemotherapy-in-an-adolescent
#3
Musa G Kukul, Kısmet Ciki, Eda Karadag-Oncel, Ali B Cengiz, Baris Kuskonmaz, Betul Tavil, Selman Kesici
Gas gangrene, clostridial myonecrosis, is one of the most serious infectious diseases, characterized by rapidly progressive destruction of deep soft tissues and production of gas within the tissues. We presented a case of fatal spontaneous gas gangrene due to Clostridium perfringens in a patient with acute lymphoblastic leukemia during remission induction chemotherapy phase.
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28295235/cutaneous-manifestations-of-subcutaneous-and-systemic-fungal-infections-in-tropical-regions-a-retrospective-study-from-a-referral-center-in-southern-taiwan
#4
Wen-Chien Tsai, Chih-Hung Lee, Wei-Min Wu, Shang-Hung Lin, Yi-Chien Yang, Yu-Wen Cheng, Ji-Chen Ho, Kwei-Lan Liu
BACKGROUND: Deep cutaneous fungal infections, including subcutaneous mycoses and systemic fungal infection with cutaneous involvement, cause significant morbidity and mortality in light of increasing immunocompromised patients and global warming. Although a few studies reviewed deep fungal infections in temperate regions, a relevant study in tropical regions is lacking. We evaluated features of deep cutaneous fungal infections in southern Taiwan among the tropical regions. METHODS: We retrospectively reviewed all histopathological specimens with deep cutaneous fungal infections in a single referral center from 2001 to 2014 and successfully identified 23 cases...
March 13, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28289755/-necrotizing-fasciitis-of-the-upper-and-lower-extremities
#5
M Kückelhaus, T Hirsch, M Lehnhardt, A Daigeler
Necrotizing fasciitis is a potentially fatal soft tissue infection that may affect the upper and lower extremities, scrotum, perineum and abdominal wall. Typically, the infection demonstrates rapid spreading along the fascial planes leading to sepsis with mortality rates of 15-46%. Without adequate treatment, the mortality rate increases to close to 100%. There are four groups of pathogens that can lead to necrotizing fasciitis, namely beta-hemolytic group A streptococci, mixed infections with obligate and facultative anaerobes, clostridium species and fungal infections...
March 13, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28284556/morphology-and-morphometry-of-the-lung-in-corn-snakes-pantherophis-guttatus-infected-with-three-different-strains-of-ferlavirus
#6
J M Starck, A Neul, V Schmidt, T Kolb, S Franz-Guess, D Balcecean, M Pees
Ophidian paramyxovirus (ferlavirus) is a global threat to reptilian sauropsids in herpetological collections, with occasional but fatal effects. This study characterizes the effects of three different genetic strains of ferlavirus on the dynamic changes of histology and morphometry of the lung of corn snakes (Pantherophis guttatus). Lungs from 42 corn snakes were either sham-infected or infected experimentally under standardized conditions. From 4 to 49 days after intratracheal inoculation, the lungs were examined qualitatively and quantitatively...
March 8, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28261625/isolation-and-identification-of-legionella-spp-from-different-aquatic-sources-in-south-west-of-iran-by-molecular-culture-methods
#7
Mohammad Tabatabaei, Zahra Hemati, Maryam-O-Sadat Moezzi, Negar Azimzadeh
Legionella pneumophila, the causative agent of Legionnaires' diseases (LD) is usually transmitted to humans via inhalation of aerosols from contaminated natural and manmade water sources. These organisms may become fatal especially in immunocompromised patients and LD is the one of the important disease from a public health perspective. This survey investigated the frequency of Legionella spp. including L. pneumophila, in some cold and warm water systems in South-West of Iran by culture and PCR methods. Thirty four water samples were collected from diverse water supply systems...
December 2016: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/28254599/invasive-orbital-apex-aspergillosis-with-mycotic-aneurysm-formation-and-subarachnoid-hemorrhage-in-immunocompetent-patients
#8
Saleh S Baeesa, Mohamad Bakhaidar, Naushad A B Ahamed, Tariq A Madani
BACKGROUND: Invasive orbital apex aspergillosis (IOAA) is an aggressive form of aspergillus infection that usually affects immunocompromised patients. It can cause orbital apex syndrome and, if not treated promptly, may progress rapidly causing fatal complications. Subarachnoid hemorrhage (SAH) secondary to ruptured mycotic aneurysms is a very rare complication of invasive aspergillosis. We aim to describe our management and the outcome of six immunocompetent patients with IOAA with subsequent SAH secondary to ruptured mycotic aneurysms...
February 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28250130/pathways-of-prion-spread-during-early-chronic-wasting-disease-in-deer
#9
Clare E Hoover, Kristen A Davenport, Davin M Henderson, Nathaniel D Denkers, Candace K Mathiason, Claudio Soto, Mark D Zabel, Edward A Hoover
Among prion infections, two scenarios of prion spread are generally observed: (a) early lymphoid tissue replication or (b) direct neuroinvasion without substantial antecedent lymphoid amplification. In nature, cervids are infected with chronic wasting disease (CWD) prions by oral and nasal mucosal exposure, and studies of early CWD pathogenesis have implicated pharyngeal lymphoid tissue as the earliest sites of prion accumulation. However, knowledge of chronological events in prion spread during early infection remains incomplete...
March 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28237664/il-10-deficient-mice-express-ifn-%C3%AE-mrna-and-clear-leptospira-interrogans-from-their-kidneys-more-rapidly-than-normal-c57bl-6-mice
#10
Amy A Devlin, Priya J Halvorsen, Jennifer C Miller, Scott M Laster
Leptospira interrogans (L. interrogans), the causative agent of leptospirosis, is a widespread zoonotic spirochete that lives a dual lifestyle. L. interrogans infects mice, rats, and wildlife in a persistent and asymptomatic fashion, while also causing productive and acute infections in other mammals such as humans and hamsters. Infections in humans can be fatal, accompanied by a cytokine storm and shock-like symptoms. Production of IL-10 has been noted in both rodent and human infections which has led a number of investigators to hypothesize that IL-10 plays a role in the pathogenesis of this disease...
February 10, 2017: Immunobiology
https://www.readbyqxmd.com/read/28212620/clinical-manifestations-of-severe-enterovirus-71-infection-and-early-assessment-in-a-southern-china-population
#11
Si-da Yang, Pei-Qing Li, Yi-Min Li, Wei Li, Wen-Ying Lai, Cui-Ping Zhu, Jian-Ping Tao, Li Deng, Hong-Sheng Liu, Wen-Cheng Ma, Jia-Ming Lu, Yan Hong, Yu-Ting Liang, Jun Shen, Dan-Dan Hu, Yuan-Yuan Gao, Yi Zhou, Min-Xiong Situ, Yan-Ling Chen
BACKGROUND: Enterovirus 71 (EV-A71) shows a potential of rapid death, but the natural history of the infection is poorly known. This study aimed to examine the natural history of EV-A71 infection. METHODS: This was a prospective longitudinal observational study performed between January 1(st) and October 31(st), 2012, at three hospitals in Guangdong, China. Subjects with positive EV-A71 RNA laboratory test results were included. Disease progression was documented with MRI, autopsies, and follow-up...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28210456/severe-odontogenic-infection-an-emergency-case-report
#12
Marcelo Guzmán-Letelier, Claudia Crisosto-Jara, Camilo Diaz-Ricouz, Miguel Peñarrocha-Diago, David Peñarrocha-Oltra
Odontogenic infections (OI) are a major reason for consultation in dental practice. They affect people of all ages, and most of them respond well to current medical and surgical treatments. However, some OI can spread to vital and deep structures, overcome the host immune system - especially in diabetic, immunocompromised or weakened patients - and even prove fatal. Ludwig's angina is a severe form of diffuse cellulitis that can have an acute onset and spread very rapidly, bilaterally affecting areas of the head and neck, and may prove life threatening...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28196469/extracorporeal-membrane-oxygenation-for-avian-influenza-a-h7n9-patient-with-acute-respiratory-distress-syndrome-a-case-report-and-short-literature-review
#13
Qi Nie, Ding-Yu Zhang, Wen-Juan Wu, Chao-Lin Huang, Zheng-Yi Ni
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is performed as an acceptable life-saving bridging procedure in patients with severe acute respiratory distress syndrome (ARDS).To patients with avian influenza A (H7N9)-associated ARDS, ECMO could be adopted as a feasible therapeutic solution. We present our successful experience with ECMO utilized in a respiratory failure patient with H7N9 infection. CASE PRESENTATION: A 44 years-old female with H7N9-induced ARDS was admitted to intensive care unit (ICU) and was treated with veno-venous ECMO for six days, antiviral therapy, prolonged corticosteroid infusion and other therapies...
February 14, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28190501/middle-east-respiratory-syndrome-mers-coronavirus-and-dromedaries
#14
REVIEW
Ulrich Wernery, Susanna K P Lau, Patrick C Y Woo
Middle East Respiratory Syndrome (MERS) is a zoonotic viral disease that can be transmitted from dromedaries to human beings. More than 1500 cases of MERS have been reported in human beings to date. Although MERS has been associated with 30% case fatality in human beings, MERS coronavirus (MERS-CoV) infection in dromedaries is usually asymptomatic. In rare cases, dromedaries may develop mild respiratory signs. No MERS-CoV or antibodies against the virus have been detected in camelids other than dromedaries...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28187198/two-stable-variants-of-burkholderia-pseudomallei-strain-mshr5848-express-broadly-divergent-in-vitro-phenotypes-associated-with-their-virulence-differences
#15
A A Shea, R C Bernhards, C K Cote, C J Chase, J W Koehler, C P Klimko, J T Ladner, D A Rozak, M J Wolcott, D P Fetterer, S J Kern, G I Koroleva, S P Lovett, G F Palacios, R G Toothman, J A Bozue, P L Worsham, S L Welkos
Burkholderia pseudomallei (Bp), the agent of melioidosis, causes disease ranging from acute and rapidly fatal to protracted and chronic. Bp is highly infectious by aerosol, can cause severe disease with nonspecific symptoms, and is naturally resistant to multiple antibiotics. However, no vaccine exists. Unlike many Bp strains, which exhibit random variability in traits such as colony morphology, Bp strain MSHR5848 exhibited two distinct and relatively stable colony morphologies on sheep blood agar plates: a smooth, glossy, pale yellow colony and a flat, rough, white colony...
2017: PloS One
https://www.readbyqxmd.com/read/28184274/cerebrospinal-fluid-infection-after-lumbar-nerve-root-steroid-injection-a-case-report
#16
Kwan-Sub Kim, Young-Ki Kim, Seong-Su Kim, Sung Min Shim, Hae Jun Cho
A 45-year-old woman was admitted due to severe headache and neck stiffness. She had visited a local clinic for back pain and received a lumbar nerve root steroid injection 10 days before admission. Computed tomography and magnetic resonance imaging showed psoas abscess, pneumocephalus, and subdural hygroma. She was diagnosed with psoas abscess and meningitis. The abscess and external ventricle were drained, and antibiotics were administered. Unfortunately, the patient died on hospital day 19 due to diffuse leptomeningitis...
February 2017: Korean Journal of Anesthesiology
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/28174366/radiofrequency-glow-discharge-as-a-mode-of-disinfection-for-elastomeric-impression-materials
#18
Susan Mathew, Mathew M Alani, K N Velayudhan Nair, Sayij Haridas, P B Reba, Sherin A Thomas
INTRODUCTION: Prosthodontic practice involves procedures in which impressions of the maxillary and mandibular arches are mandatory. Cross infection is one of the major problems that can occur in regular dental practice. Every dentist should take utmost care to prevent cross infection as oral cavity is the source of variety of microorganisms which can often cause diseases that can be fatal. Although precautions, such as wearing of gloves and mask, sterilization of instruments are given importance, the need for disinfection of impressions is often neglected...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28167629/il-10-plays-opposing-roles-during-staphylococcus-aureus-systemic-and-localized-infections
#19
John M Leech, Keenan A Lacey, Michelle E Mulcahy, Eva Medina, Rachel M McLoughlin
IL-10 is a potent anti-inflammatory mediator that plays a crucial role in limiting host immunopathology during bacterial infections by controlling effector T cell activation. Staphylococcus aureus has previously been shown to manipulate the IL-10 response as a mechanism of immune evasion during chronic systemic and biofilm models of infection. In the present study, we demonstrate divergent roles for IL-10 depending on the site of infection. During acute systemic S. aureus infection, IL-10 plays an important protective role and is required to prevent bacterial dissemination and host morbidity by controlling effector T cells and the associated downstream hyperactivation of inflammatory phagocytes, which are capable of host tissue damage...
March 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28166851/a-systematic-review-of-early-modelling-studies-of-ebola-virus-disease-in-west-africa
#20
Z S Y Wong, C M Bui, A A Chughtai, C R Macintyre
Phenomenological and mechanistic models are widely used to assist resource planning for pandemics and emerging infections. We conducted a systematic review, to compare methods and outputs of published phenomenological and mechanistic modelling studies pertaining to the 2013-2016 Ebola virus disease (EVD) epidemics in four West African countries - Sierra Leone, Liberia, Guinea and Nigeria. We searched Pubmed, Embase and Scopus databases for relevant English language publications up to December 2015. Of the 874 articles identified, 41 met our inclusion criteria...
February 7, 2017: Epidemiology and Infection
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