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Karen K Yam, Angela Brewer, Virginie Bleau, Édith Beaulieu, Corey P Mallett, Brian J Ward
We investigated the long-term immune profiles of dose-sparing, AS03-adjuvanted vaccines compared to a traditional high-dose, unadjuvated influenza vaccine formulations. BALB/c mice received 2 IM injections of influenza A/Uruguay/716/2007 (H3N2) split vaccine antigen: high-dose (HD) (3 µg hemagglutinin (HA)/dose) or low-dose (LD) formulations (0.03 µg or 0.003 µg HA) with AS03 and were followed to 34 weeks post-boost (pb). We examined serologic responses, spleen and bone marrow (BM) HA-specific antibody-secreting cells (ASCs) by ELISpot, influenza-specific cytokine/chemokine production in re-stimulated splenocytes by multiplex ELISA, and antigen-specific CD4+ T cells that express cytokines (IL-2, IFNγ, TNFa and IL-5) by flow cytometry...
October 21, 2016: Human Vaccines & Immunotherapeutics
Fangyan Yu, Shruti Sharma, Agnieszka Skowronek, Kai Sven Erdmann
A primary cilium is present on most eukaryotic cells and represents a specialized organelle dedicated to signal transduction and mechanosensing. Defects in cilia function are the cause for several human diseases called ciliopathies. The serologically defined colon cancer antigen-3 (SDCCAG3) is a recently described novel endosomal protein mainly localized at early and recycling endosomes and interacting with several components of membrane trafficking pathways. Here we describe localization of SDCCAG3 to the basal body of primary cilia...
October 21, 2016: Scientific Reports
Meghan B Brennan, Barbara L Herwaldt, James J Kazmierczak, John W Weiss, Christina L Klein, Catherine P Leith, Rong He, Matthew J Oberley, Laura Tonnetti, Patricia P Wilkins, Gregory M Gauthier
Babesia microti, an intraerythrocytic parasite, is tickborne in nature. In contrast to transmission by blood transfusion, which has been well documented, transmission associated with solid organ transplantation has not been reported. We describe parasitologically confirmed cases of babesiosis diagnosed ≈8 weeks posttransplantation in 2 recipients of renal allografts from an organ donor who was multiply transfused on the day he died from traumatic injuries. The organ donor and recipients had no identified risk factors for tickborne infection...
November 2016: Emerging Infectious Diseases
Morven S Edwards, Marcia A Rench, C Daniela Rinaudo, Monica Fabbrini, Giovanna Tuscano, Giada Buffi, Erika Bartolini, Stefano Bonacci, Carol J Baker, Immaculada Margarit
Immunization of nonpregnant adults could help prevent invasive group B Streptococcus (GBS) infections, but adult immune responses have not been investigated. We defined capsular polysaccharide (CPS) and pilus island (PI) surface antigen distribution and expression and immune responses to GBS infection in nonpregnant adults. Prospective surveillance from 7 hospitals in Houston, Texas, USA, identified 102 adults with GBS bacteremia; 43% had skin/soft tissue infection, 16% bacteremia without focus, and 12% osteomyelitis...
November 2016: Emerging Infectious Diseases
Ganesh Veerasekar, Krishnan Swaminathan
BACKGROUND: Using technology to track endemic areas of communicable diseases is possible nowadays. Effectual use of such facilities, especially in developing countries, will increase earlier detection of cases as well as aid in the formulation of effective prevention strategies. METHODS: A retrospective data analysis was carried out by collecting the details of patients presented with positive dengue serology, during the outbreak season in the second half of 2012, at Kovai Medical Center and Hospital, Coimbatore, India...
October 2016: Journal of the Association of Physicians of India
Mariola Paściak, Sabina Górska, Natalia Jawiarczyk, Andrzej Gamian
Structural studies of the major glycolipids produced by two Lactobacillus johnsonii (LJ) strains, LJ 151 isolated from intestinal tract of healthy mice and LJ 142 isolated from mice with experimentally induced inflammatory bowel disease (IBD), were performed. Two major glycolipids, GL1 and GL2, were present in lipid extracts from L. johnsonii 142 and 151 strains. Glycolipid GL1 has been identified as β-D-Glcp-(1→6)-α-D-Galp-(1→2)-α-D-Glcp-diglyceride and GL2 as α-D-Galp-(1→2)-α-D-Glcp-diglyceride...
October 21, 2016: Microbial Biotechnology
M Cambron, N Hadhoum, E Duhin, A Lacour, A Chouraki, P Vermersch
OBJECTIVES: Although many neurologists are reluctant to use natalizumab in MS (multiple sclerosis) given the increased risk for PML (progressive multifocal leukoencephalopathy), trust was regained with the introduction of JCV antibody titres as a potent disease-modifying therapy. Literature shows that in patients with a negative JCV serology, the risk of PML is virtually non-existent. Unfortunately, seroconversion causes concern amongst many neurologists. Furthermore, when patients seroconvert, it is still unclear what the risk is of passing the important threshold of 1...
October 20, 2016: Acta Neurologica Scandinavica
Morten Asser Karsdal, Kim Henriksen, Mette Juul Nielsen, Inger Byrjalsen, Diana Julie Leeming, Stephen Gardner, Zachary Goodman, Keyur Patel, Aleksander Krag, Claus Christiansen, Detlef Schuppan
BACKGROUND: There are no approved treatments for liver fibrosis. To aid development of anti-fibrotic therapies, non-invasive biomarkers that can identify patients with progressive fibrosis and that permit monitoring of the response to anti-fibrotic therapy are much needed. METHODS: Samples from a phase II anti-fibrotic trial of the glitazone farglitazar in patients with advanced hepatitis C, with matched follow-up liver biopsies, and from a phase III study of balaglitazone in late stage type 2 diabetics (BALLET study), were analysed for serological Pro-C3 levels in conjunction with other disease parameters...
October 20, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
Oytip Nathalang, Puangpaka Panichrum, Kamphon Intharanut, Phatchira Thattanon, Siriporn Nathalang
Alloantibodies to the Diego (DI) blood group system, anti-Dia and anti-Dib are clinically significant in causing hemolytic transfusion reactions (HTRs) and hemolytic disease of the fetus and newborn (HDFN), especially in Asian populations with Mongolian ancestry. This study aimed to report the frequency of the DI*A and DI*B alleles in a Central Thai population and to compare them with those of other populations previously published. Altogether, 1,011 blood samples from unrelated healthy blood donors at the National Blood Centre, Thai Red Cross Society, Bangkok were included...
2016: PloS One
Marie Louise Landry, Kirsten St George
CONTEXT: -The rapid and accurate diagnosis of Zika virus infection is an international priority. OBJECTIVE: -To review current recommendations, methods, limitations, and priorities for Zika virus testing. DATA SOURCES: -Sources include published literature, public health recommendations, laboratory procedures, and testing experience. CONCLUSIONS: -Until recently, the laboratory diagnosis of Zika infection was confined to public health or research laboratories that prepared their own reagents, and test capacity has been limited...
October 20, 2016: Archives of Pathology & Laboratory Medicine
Daniel D Rhoads, Jonathan R Genzen, Christine P Bashleben, James D Faix, M Qasim Ansari
CONTEXT: -Syphilis serology screening in laboratory practice is evolving. Traditionally, the syphilis screening algorithm begins with a nontreponemal immunoassay, which is manually performed by a laboratory technologist. In contrast, the reverse algorithm begins with a treponemal immunoassay, which can be automated. The Centers for Disease Control and Prevention has recognized both approaches, but little is known about the current state of laboratory practice, which could impact test utilization and interpretation...
October 20, 2016: Archives of Pathology & Laboratory Medicine
B Mishra, B Behera
Until now, known as the demure cousin of dengue virus (DENV) inhabiting Africa, Zika virus (ZIKV) has reinvented itself to cause explosive epidemics captivating the Western hemisphere. The outbreak causing potential for ZIKV was realized when it made its way from Africa to Yap Island Micronesia in 2007, and in French Polynesia in 2013. From there, it moved on to Brazil in 2015. Now ZIKV has infected people in more than 33 countries in Central and South America and the Caribbean. Moreover the epidemiological and subsequent virological association with microcephaly cases in Brazil has prompted the World Health Organization to declare a public health emergency of International Concern...
October 2016: Journal of Postgraduate Medicine
Michele Trotta, Beatrice Borchi, Lorenzo Zammarchi, Gaetana Sterrantino, Michela Brogi, Seble Tekle Kiros, Chiara Lorini, Guglielmo Bonaccorsi, Maria Grazia Colao, Alessandro Bartoloni
AIM: The aim of this study was to evaluate immunoglobulin M indirect-fluorescent antibody test (IgM IFAT) for the diagnosis of acute or chronic Toxoplasma infection in pregnancy. METHODS: Pregnant women with suspected acute toxoplasmosis referred to the Tuscany Reference Center for Infectious Diseases in Pregnancy during the period 1998-2012 were retrospectively enrolled. All women were tested with a panel of serological tests, including enzyme-linked immunosorbent assay for IgG avidity and IgM IFAT...
October 20, 2016: Journal of Obstetrics and Gynaecology Research
Juan F Contreras-Cordero, César I Romo-Sáenz, Griselda E Menchaca-Rodríguez, Rocío Infante-Ramírez, Licet Villarreal-Treviño, Carlos E Hernández-Luna, Cristina Rodríguez-Padilla, Reyes S Tamez-Guerra
Rotavirus vaccine was developed using the most prominent G and P genotypes circulating in children population. Therefore, severe gastroenteritis has been reduced around the world. This study investigated the G and P rotavirus genotypes circulating in children from two hospitals in the city of Chihuahua, Mexico. Additionally, polyclonal antibodies against Rotavirus Wa strain were used to determine their homotypic and heterotypic reactivity to both P[8] and P[4] genotypes. G1, G2, and G3 VP7 genotypes and P[8] and P[4] VP4 genotypes were detected in common and uncommon combinations as well as mixed infectious...
December 2015: International Microbiology: the Official Journal of the Spanish Society for Microbiology
I Ivić, I Božić, D Ledina
Coxiella burnetii is capable of causing a variety of acute and chronic infections. We present a case of pericarditis with serologically confirmed chronic C. burnetii infection. This case report emphasises the justification of serological testing for chronic C. burnetii infection in patients with prolonged or recurrent pericarditis, particularly in countries endemic for C. burnetii infection.
October 2016: Netherlands Journal of Medicine
Jasmine Porwal, Ajay Chauhan
Dengue infection accompanied by unusual complications and manifestations has been described before. Here we report a case of dengue encephalitis who was IgM positive for dengue serology and had presented to us with only motor weakness after an acute febrile episode. Dengue presenting as encephalitis is in itself a very rare feature and that too, pure motor weakness has hardly ever been reported before.
August 2016: Journal of the Association of Physicians of India
B Lozano-Masdemont, L Gómez-Recuero-Muñoz, A Pulido-Pérez, I Molina-López, R Suárez-Fernández
Hepatitis B virus (HBV) infection in pregnant women is very rare in western countries, thus, cutaneous manifestation of HBV infection may be confused with a dermatosis specific of pregnancy. We report a 39-year-old woman who presented in her 20th week of pregnancy with a pruritic rash, which consisted of generalized erythematous plaques, some of them with a purple centre. Serology testing showed acute HBV infection, and a biopsy revealed a superficial and interstitial perivascular inflammatory infiltrate of lymphocytes and eosinophils...
October 20, 2016: Clinical and Experimental Dermatology
Balaji K Tamarappoo, Allan L Klein
Post-pericardiotomy syndrome (PPS) occurs in a subgroup of patients who have undergone cardiothoracic surgery and is characterized by fever, pleuritic pain, pleural effusion, and pericardial effusion. It is associated with significant morbidity, and the leading complications include tamponade and constrictive pericarditis. Epidemiologic studies have found that PPS often occurs among younger patients; however, there is a lack of comprehensive risk stratification. It is therefore important to be able to identify patients who are at high risk for developing this disease...
November 2016: Current Cardiology Reports
Jeong Eun Song, Do Young Kim
Hepatitis B virus (HBV) infection is a major global health problems leading to severe liver disease such as cirrhosis and hepatocellular carcinoma (HCC). HBV is a circular, partly double-stranded DNA virus with various serological markers: hepatitis B surface antigen (HBsAg) and anti-HBs, anti-HBc IgM and IgG, and hepatitis B e antigen (HBeAg) and anti-HBe. It is transmitted by sexual, parenteral and vertical route. One significant method to diminish the burden of this disease is timely diagnosis of acute, chronic and occult cases of HBV...
September 2016: Annals of Translational Medicine
Joshua C Eby, Mary C Gray, Jason M Warfel, Tod J Merkel, Erik L Hewlett
ACT is an essential virulence factor of Bordetella pertussis and antibodies to ACT protect against B. pertussis infection in mice. The toxin is, therefore, a strong candidate antigen for addition to future acellular pertussis vaccines. In order to characterize the functionality of the immunologic response to ACT after infection, we have developed an assay for testing the ability of serum samples from subjects infected with B. pertussis to neutralize ACT-induced cytotoxicity in J774 macrophage cells. Baboons develop neutralizing anti-ACT antibodies following infection with B...
October 19, 2016: Clinical and Vaccine Immunology: CVI
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