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  1 / 139120 MEDLINE  
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[PMID]:29401501
[Au] Autor:Inomata T; Konno S; Nagai K; Suzuki M; Nishimura M
[Ad] Endereço:First Department of Medicine, Hokkaido University School of Medicine, Sapporo, Japan.
[Ti] Título:Neutrophil predominance in bronchoalveolar lavage fluid is associated with disease severity and progression of HRCT findings in pulmonary Mycobacterium avium infection.
[So] Source:PLoS One;13(2):e0190189, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Pulmonary Mycobacterium avium complex (MAC) infection is increasing in prevalence worldwide even in immunocompetent individuals. Despite its variable clinical course, the clinical and immunological factors associated with radiographical severity and progression are not largely unknown. We aimed to study the association between the inflammatory cell and cytokine profiles at the local infected site, and the radiological severity and/or progression of pulmonary MAC infection. In this retrospective cohort study, 22 healthy subjects and 37 consecutive patients who were diagnosed as having pulmonary MAC infection by positive cultures of bronchoalveolar lavage (BAL) fluids were enrolled. The 37 patients were divided into 2 groups based on the predominant BAL inflammatory cell type: the lymphocyte-dominant (LD) group and neutrophil-dominant (ND) groups. The high-resolution computed tomography score in both the lavaged segment and whole lung and cytokines profiles were compared between the 2 groups. The clinical course after the BAL procedure was also compared between the 2 groups. Both the segment and whole lung scores in the ND group were significantly higher than the LD group (P < 0.001). Levels of IL-8 in the BAL fluids were significantly higher in the ND group compared to the LD group (P = 0.01). In contrast, levels of IL-22 were significantly lower in the ND group compared to the LD group (P < 0.001). The prevalence of patients who showed deterioration of the disease was significantly higher in the ND group (83.3%) than the LD group (12.5%) (P < 0.01). Neutrophil-predominant inflammatory response at the infected site is associated with the radiographical severity and progression of pulmonary MAC infection.
[Mh] Termos MeSH primário: Líquido da Lavagem Broncoalveolar/imunologia
Infecção por Mycobacterium avium-intracellulare/imunologia
Neutrófilos/imunologia
Tomografia Computadorizada por Raios X/métodos
[Mh] Termos MeSH secundário: Adulto
Idoso
Estudos de Casos e Controles
Quimiocinas/metabolismo
Citocinas/metabolismo
Progressão da Doença
Ensaio de Imunoadsorção Enzimática
Feminino
Seres Humanos
Masculino
Meia-Idade
Infecção por Mycobacterium avium-intracellulare/diagnóstico por imagem
Infecção por Mycobacterium avium-intracellulare/patologia
Índice de Gravidade de Doença
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Chemokines); 0 (Cytokines)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180206
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190189


  2 / 139120 MEDLINE  
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[PMID]:29381710
[Au] Autor:Opriessnig T; Gauger PC; Gerber PF; Castro AMMG; Shen H; Murphy L; Digard P; Halbur PG; Xia M; Jiang X; Tan M
[Ad] Endereço:The Roslin Institute and The Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, United Kingdom.
[Ti] Título:Comparison of the efficacy of a commercial inactivated influenza A/H1N1/pdm09 virus (pH1N1) vaccine and two experimental M2e-based vaccines against pH1N1 challenge in the growing pig model.
[So] Source:PLoS One;13(1):e0191739, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Swine influenza A viruses (IAV-S) found in North American pigs are diverse and the lack of cross-protection among heterologous strains is a concern. The objective of this study was to compare a commercial inactivated A/H1N1/pdm09 (pH1N1) vaccine and two novel subunit vaccines, using IAV M2 ectodomain (M2e) epitopes as antigens, in a growing pig model. Thirty-nine 2-week-old IAV negative pigs were randomly assigned to five groups and rooms. At 3 weeks of age and again at 5 weeks of age, pigs were vaccinated intranasally with an experimental subunit particle vaccine (NvParticle/M2e) or a subunit complex-based vaccine (NvComplex/M2e) or intramuscularly with a commercial inactivated vaccine (Inact/pH1N1). At 7 weeks of age, the pigs were challenged with pH1N1 virus or sham-inoculated. Necropsy was conducted 5 days post pH1N1 challenge (dpc). At the time of challenge one of the Inact/pH1N1 pigs had seroconverted based on IAV nucleoprotein-based ELISA, Inact/pH1N1 pigs had significantly higher pdm09H1N1 hemagglutination inhibition (HI) titers compared to all other groups, and M2e-specific IgG responses were detected in the NvParticle/M2e and the NvComplex/M2e pigs with significantly higher group means in the NvComplex/M2e group compared to SHAMVAC-NEG pigs. After challenge, nasal IAV RNA shedding was significantly reduced in Inact/pH1N1 pigs compared to all other pH1N1 infected groups and this group also had reduced IAV RNA in oral fluids. The macroscopic lung lesions were characterized by mild-to-severe, multifocal-to-diffuse, cranioventral dark purple consolidated areas typical of IAV infection and were similar for NvParticle/M2e, NvComplex/M2e and SHAMVAC-IAV pigs. Lesions were significantly less severe in the SHAMVAC-NEG and the Inact/pH1N1pigs. Under the conditions of this study, a commercial Inact/pH1N1 specific vaccine effectively protected pigs against homologous challenge as evidenced by reduced clinical signs, virus shedding in nasal secretions and oral fluids and reduced macroscopic and microscopic lesions whereas intranasal vaccination with experimental M2e epitope-based subunit vaccines did not. The results further highlight the importance using IAV-S type specific vaccines in pigs.
[Mh] Termos MeSH primário: Modelos Animais de Doenças
Vírus da Influenza A Subtipo H1N1/imunologia
Vacinas contra Influenza/imunologia
Suínos/imunologia
[Mh] Termos MeSH secundário: Animais
Ensaio de Imunoadsorção Enzimática
Suínos/crescimento & desenvolvimento
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Influenza Vaccines)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180131
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191739


  3 / 139120 MEDLINE  
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[PMID]:29377929
[Au] Autor:Allard D; Charlebois R; Gilbert L; Stagg J; Chrobak P
[Ad] Endereço:Centre de Recherche du Centre Hospitalier l'Université de Montréal (CRCHUM), Faculté de Pharmacie de l'Université de Montréal et Institut du Cancer de Montréal, Montréal, Quebec, Canada.
[Ti] Título:CD73-A2a adenosine receptor axis promotes innate B cell antibody responses to pneumococcal polysaccharide vaccination.
[So] Source:PLoS One;13(1):e0191973, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Many individuals at risk of streptococcal infection respond poorly to the pneumococcal polysaccharide vaccine Pneumovax 23. Identification of actionable pathways able to enhance Pneumovax responsiveness is highly relevant. We investigated the contribution of the extracellular adenosine pathway regulated by the ecto-nucleotidase CD73 in Pneumovax-induced antibody responses. Using gene-targeted mice, we demonstrated that CD73-or A2a adenosine receptor deficiency significantly delayed isotype switching. Nevertheless, CD73- or A2aR- deficient adult mice ultimately produced antigen-specific IgG3 and controlled Streptococcus pneumoniae infection as efficiently as wild type (WT) mice. Compared to adults, young WT mice failed to control S. pneumoniae infection after vaccination and this was associated with lower levels of CD73 on innate B cells. We hypothesized that pharmacological activation of A2a receptor may improve Pneumovax 23 immunization in young WT mice. Remarkably, administration of the A2a adenosine receptor agonist CGS 21680 significantly increased IgG3 responses and significantly enhanced survival after S. pneumoniae challenge. Our study thus suggests that pharmacological activation of the A2a adenosine receptor could improve the efficacy of Pneumovax 23 vaccination in individuals at risk of streptococcal infection.
[Mh] Termos MeSH primário: 5´-Nucleotidase/metabolismo
Linfócitos B/imunologia
Imunidade Inata
Vacinas Pneumocócicas/imunologia
Receptor A2A de Adenosina/metabolismo
[Mh] Termos MeSH secundário: 5'-Nucleotidase/genética
Animais
Ensaio de Imunoadsorção Enzimática
Imunofluorescência
Imunoglobulina G/imunologia
Camundongos
Camundongos Endogâmicos C57BL
Camundongos Knockout
Receptor A2A de Adenosina/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Immunoglobulin G); 0 (Pneumococcal Vaccines); 0 (Receptor, Adenosine A2A); EC 3.1.3.5 (5'-Nucleotidase)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191973


  4 / 139120 MEDLINE  
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[PMID]:29377910
[Au] Autor:Ikezono T; Matsumura T; Matsuda H; Shikaze S; Saitoh S; Shindo S; Hasegawa S; Oh SH; Hagiwara Y; Ogawa Y; Ogawa H; Sato H; Tono T; Araki R; Maeda Y; Usami SI; Kase Y
[Ad] Endereço:Department of Otorhinolaryngology, Saitama Medical University, Saitama, Japan.
[Ti] Título:The diagnostic performance of a novel ELISA for human CTP (Cochlin-tomoprotein) to detect perilymph leakage.
[So] Source:PLoS One;13(1):e0191498, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Perilymphatic fistula is defined as an abnormal communication between the perilymph-filled space and the middle ear, or cranial spaces. The manifestations include a broad spectrum of neuro-otological symptoms such as hearing loss, vertigo/dizziness, disequilibrium, aural fullness, tinnitus, and cognitive dysfunction. By sealing the fistula, perilymphatic fistula is a surgically correctable disease. Also, appropriate recognition and treatment of perilymphatic fistula can improve a patient's condition and hence the quality of life. However, the difficulty in making a definitive diagnosis due to the lack of an appropriate biomarker to detect perilymph leakage has caused a long-standing debate regarding its management. We have reported a clinical test for the diagnosis of perilymphatic fistula by detecting a perilymph specific protein, Cochlin-tomoprotein, as a diagnostic marker using a western blot. The aim of this study is to establish an ELISA-based human Cochlin-tomoprotein detection test and to evaluate its diagnostic accuracy in clinical subjects. The results of ELISA showed good dilution reproducibility. The mean concentration was 49.7±9.4 of 10 perilymph samples. The ROC curve in differentiating the perilymph leakage condition from the normal middle ear was significant (P < 0.001) with an area under the curve (AUC) of 0.918 (95% CI 0.824-0.100). We defined the diagnostic criteria as follows: CTP<0.4 negative; 0.4≦CTP<0.8 intermediate; 0.8≦CTP(ng/ml) positive in the clinical usage of the hCTP ELISA, and sensitivity and specificity were 86.4% and 100%, respectively. We further tested the expression specificity of the Cochlin-tomoprotein by testing blood and CSF samples. The concentration was below the detection limit (0.2 ng/ml) in 38 of the 40 blood, and 14 of the 19 CSF samples. We report the accuracy of this test for the diagnosis of perilymphatic fistula. Using ELISA, we can improve the throughput of the test. Furthermore, it is useful for a large-scale study to characterize the clinical picture and delineate the management of this medical condition.
[Mh] Termos MeSH primário: Ensaio de Imunoadsorção Enzimática/métodos
Proteínas da Matriz Extracelular/metabolismo
Perilinfa/metabolismo
[Mh] Termos MeSH secundário: Western Blotting
Proteínas da Matriz Extracelular/sangue
Proteínas da Matriz Extracelular/líquido cefalorraquidiano
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (COCH protein, human); 0 (Extracellular Matrix Proteins)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180130
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191498


  5 / 139120 MEDLINE  
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[PMID]:29364927
[Au] Autor:Ferdin J; Goricar K; Dolzan V; Plemenitas A; Martin JN; Peterlin BM; Deeks SG; Lenassi M
[Ad] Endereço:Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
[Ti] Título:Viral protein Nef is detected in plasma of half of HIV-infected adults with undetectable plasma HIV RNA.
[So] Source:PLoS One;13(1):e0191613, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: To address the role of translationally active HIV reservoir in chronic inflammation and non-AIDS related disorders, we first need a simple and accurate assay to evaluate viral protein expression in virally suppressed subjects. DESIGN: We optimized an HIV Nef enzyme-linked immunosorbent assay (ELISA) and used it to quantify plasma Nef levels as an indicator of the leaky HIV reservoir in an HIV-infected cohort. METHODS: This study accessed 134 plasma samples from a well-characterized cohort study of HIV-infected and uninfected adults in San Francisco (the SCOPE cohort). We optimized an ELISA for detection of plasma Nef in HIV-negative subjects and HIV-infected non-controllers, and evaluated its utility to quantify plasma Nef levels in a cross-sectional study of ART-suppressed and elite controller HIV-infected subjects. RESULTS: Here, we describe the performance of an optimized HIV Nef ELISA. When we applied this assay to the study cohort we found that plasma Nef levels were correlated with plasma HIV RNA levels in untreated disease. However, we were able to detect Nef in plasma of approximately half of subjects on ART or with elite control, despite the lack of detectable plasma HIV RNA levels using standard assays. Plasma Nef levels were not consistently associated with CD4+ T-cell count, CD8+ T-cell count, self-reported nadir CD4+ T-cell count or the CD4+/CD8+ T-cell ratio in HIV-infected subjects. CONCLUSION: Since plasma HIV RNA levels are undetectable in virally suppressed subjects, it is reasonable to assume that viral protein expression in leaky reservoir, and not plasma virions, is the source of Nef accumulating in plasma. To examine this further, improvements of the assay sensitivity, by lowering the background through improvements in the quality of Nef antibodies, and detailed characterization of the HIV reservoirs are needed.
[Mh] Termos MeSH primário: Produtos do Gene nef/sangue
Infecções por HIV/sangue
RNA Viral/sangue
Carga Viral
[Mh] Termos MeSH secundário: Adulto
Idoso
Ensaio de Imunoadsorção Enzimática
Feminino
Seres Humanos
Masculino
Meia-Idade
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Gene Products, nef); 0 (RNA, Viral)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180125
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191613


  6 / 139120 MEDLINE  
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[PMID]:29357376
[Au] Autor:Li Y; Zhou C; Li J; Liu J; Lin L; Li L; Cao D; Li Q; Wang Z
[Ad] Endereço:School of Pharmaceutical Sciences, School of Pharmaceutical Sciences, Guangzhou, China.
[Ti] Título:Single domain based bispecific antibody, Muc1-Bi-1, and its humanized form, Muc1-Bi-2, induce potent cancer cell killing in muc1 positive tumor cells.
[So] Source:PLoS One;13(1):e0191024, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Muc1 is one of the most studied tumor antigens. However, antibodies or antibody-toxin conjugates against Muc1 have not shown significant efficacy for tumors with Muc1 overexpression. In this study, we employed bispecific antibody approach to target Muc1 positive tumor cells. A novel bispecific antibody, Muc1-Bi-1, was constructed by linking single domain antibodies, anti-Muc1-VHH and anti-CD16-VHH. Muc1-Bi-2, the humanized form of Muc1-Bi-1, was also constructed by grafting. Both Muc1-Bi bispecific antibodies can be efficiently expressed and purified from bacteria. In vitro, the Muc1-Bi bispecific antibodies can recruit Natural Killer (NK) cells to drive potent and specific cell killing of Muc1-overexpressing tumor cells. In xenograft model, the Muc1-Bi bispecific antibodies can suppress tumor growth in the presence of human peripheral blood mononuclear cells (PBMC). These data suggested that the single domain based Muc1-Bi may provide a valid strategy for targeting tumors with Muc1 overexpression.
[Mh] Termos MeSH primário: Anticorpos Biespecíficos/imunologia
Mucina-1/imunologia
[Mh] Termos MeSH secundário: Animais
Anticorpos Biespecíficos/genética
Células CHO
Linhagem Celular Tumoral
Proliferação Celular
Cricetulus
Ensaio de Imunoadsorção Enzimática
Citometria de Fluxo
Seres Humanos
Camundongos
Camundongos Endogâmicos NOD
Camundongos SCID
Neoplasias/patologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Antibodies, Bispecific); 0 (MUC1 protein, human); 0 (Mucin-1)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180123
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191024


  7 / 139120 MEDLINE  
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[PMID]:29320817
[Au] Autor:Linh NTP; Park H; Lee J; Liu DX; Seo GE; Sohn HJ; Han JH; Han ET; Shin HJ; Yeo SJ
[Ad] Endereço:Zoonosis Research Center, Department of Infection Biology, School of Medicine, Wonkwang University, Iksan 54538, Korea.
[Ti] Título:Development of Monoclonal Antibodies for Diagnosis of Plasmodium vivax.
[So] Source:Korean J Parasitol;55(6):623-630, 2017 Dec.
[Is] ISSN:1738-0006
[Cp] País de publicação:Korea (South)
[La] Idioma:eng
[Ab] Resumo:Plasmodium lactate dehydrogenase (pLDH) is a strong target antigen for the determination of infection with Plasmodium species specifically. However, a more effective antibody is needed because of the low sensitivity of the current antibody in many immunological diagnostic assays. In this study, recombinant Plasmodium vivax LDH (PvLDH) was experimentally constructed and expressed as a native antigen to develop an effective P. vivax-specific monoclonal antibody (mAb). Two mAbs (2CF5 and 1G10) were tested using ELISA and immunofluorescence assays (IFA), as both demonstrated reactivity against pLDH antigen. Of the 2 antibodies, 2CF5 was not able to detect P. falciparum, suggesting that it might possess P. vivax-specificity. The detection limit for a pair of 2 mAbs-linked sandwich ELISA was 31.3 ng/ml of the recombinant antigen. The P. vivax-specific performance of mAbs-linked ELISA was confirmed by in vitro-cultured P. falciparum and P. vivax-infected patient blood samples. In conclusion, the 2 new antibodies possessed the potential to detect P. vivax and will be useful in immunoassay.
[Mh] Termos MeSH primário: Anticorpos Monoclonais
L-Lactato Desidrogenase/imunologia
Malária Vivax/diagnóstico
Plasmodium vivax/enzimologia
Plasmodium vivax/imunologia
[Mh] Termos MeSH secundário: Animais
Anticorpos Monoclonais/sangue
Biomarcadores/sangue
Ensaio de Imunoadsorção Enzimática
Feminino
Imunofluorescência
Camundongos Endogâmicos BALB C
Proteínas Recombinantes/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Monoclonal); 0 (Biomarkers); 0 (Recombinant Proteins); EC 1.1.1.27 (L-Lactate Dehydrogenase)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.3347/kjp.2017.55.6.623


  8 / 139120 MEDLINE  
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[PMID]:29320815
[Au] Autor:Matin S; Shahbazi G; Namin ST; Moradpour R; Feizi F; Piri-Dogahe H
[Ad] Endereço:Department of Internal Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
[Ti] Título:Comparison of Placenta PCR and Maternal Serology of Aborted Women for Detection of Toxoplasma gondii in Ardabil, Iran.
[So] Source:Korean J Parasitol;55(6):607-611, 2017 Dec.
[Is] ISSN:1738-0006
[Cp] País de publicação:Korea (South)
[La] Idioma:eng
[Ab] Resumo:Primary maternal infection with toxoplasmosis during pregnancy is frequently associated with transplacental transmission of the parasite to the fetus. This study was conducted to test the utility of PCR assay to detect recent infections with Toxoplasma in aborted women at various gestational ages who referred to Obstetrics and Gynecology Department of Alavi Hospital in Ardabil during 2014 and 2016. Two hundred women with a history of single or repeated abortion were investigated in this study. Blood samples were tested for specific anti-Toxoplasma IgM and IgG antibodies by ELISA. According to the results, 53.5% of the women under study were positive for anti-Toxoplasma antibodies: 4.0% of them had IgM, 43.0% had IgG, and 6.5% had both IgM and IgG. Subsequently, Nested-PCR analysis was used to detect T. gondii DNA in the placenta of subjects. In 10.5% of the women, the results were positive for 529 bp element of T. gondii. Among them, 5 (23.8%) cases were IgM positive, 1 (4.8%) case was IgG positive, and 11 (52.4%) were both IgM and IgG positive. In 4 (19.0%) patients, none of the antibodies were found to be positive. In total, 16 patients had positive results in both ELISA and PCR methods, and 174 cases had negative results for new infection. The findings of this study revealed that T. gondii might be one of the significant factors leading to abortion, and that the analysis of placenta can be important in order to achieve increased detection sensitivity.
[Mh] Termos MeSH primário: Aborto Habitual/etiologia
Aborto Espontâneo/etiologia
Anticorpos Antiprotozoários/sangue
Reação em Cadeia da Polimerase/métodos
Complicações Parasitárias na Gravidez/diagnóstico
Testes Sorológicos/métodos
Toxoplasma/imunologia
Toxoplasmose/diagnóstico
Toxoplasmose/parasitologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Biomarcadores/sangue
DNA de Protozoário/sangue
Ensaio de Imunoadsorção Enzimática
Feminino
Seres Humanos
Imunoglobulina G/sangue
Imunoglobulina M/sangue
Irã (Geográfico)/epidemiologia
Gravidez
Complicações Parasitárias na Gravidez/epidemiologia
Complicações Parasitárias na Gravidez/parasitologia
Toxoplasma/genética
Toxoplasmose/complicações
Toxoplasmose/epidemiologia
Adulto Jovem
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antibodies, Protozoan); 0 (Biomarkers); 0 (DNA, Protozoan); 0 (Immunoglobulin G); 0 (Immunoglobulin M)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180112
[St] Status:MEDLINE
[do] DOI:10.3347/kjp.2017.55.6.607


  9 / 139120 MEDLINE  
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[PMID]:29309431
[Au] Autor:Carmalt JL; Mortazavi S; McOnie RC; Allen AL; Unniappan S
[Ad] Endereço:Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.
[Ti] Título:Profiles of pro-opiomelanocortin and encoded peptides, and their processing enzymes in equine pituitary pars intermedia dysfunction.
[So] Source:PLoS One;13(1):e0190796, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Equine pituitary pars intermedia dysfunction (PPID) is characterized by hyperplasia of the pars intermedia (PI) melanotrophs of the pituitary gland (PG), and increased production of proopiomelanocortin (POMC). POMC is cleaved by prohormone convertase 1 (PC1) to produce adrenocorticotropic hormone (ACTH), and further processing of ACTH by PC2 to produce alpha-melanocyte stimulating hormone (α-MSH) and corticotropin-like intermediate peptide (CLIP). High plasma ACTH concentrations in horses with PPID might be related to reduced conversion of ACTH to α-MSH by PCs. The hypothesis of this study was that PC1 and PC2 expression in the pituitary gland are altered in PPID, resulting in an abnormal relative abundance of POMC derived proteins. The objectives of this study were to identify the partial sequences of equine POMC, PC1, and PC2 mRNAs; and to determine whether the expression of POMC, PC1, and PC2 mRNAs in whole pituitary extracts, and POMC-protein in the cavernous sinus blood of horses are altered in PPID. We confirmed (RT-PCR and sequencing) that the partial sequences obtained match the corresponding regions of predicted equine POMC, PC1 and PC2 sequences. The expression (quantification by RT-qPCR) of POMC, PC1 and PC2 mRNAs were found upregulated in the pituitary of horses with PPID. Plasma (measured using RIA/ELISA) ACTH and α-MSH were elevated in PPID horses. These results indicate distinct differences in gene and protein expression of POMC and its intermediates, and processing enzymes in PPID. It provides evidence to support the notion that local, pituitary-specific inadequacies in prohormone processing likely contribute to equine PPID.
[Mh] Termos MeSH primário: Peptídeos/metabolismo
Adeno-Hipófise Parte Intermédia/metabolismo
Pró-Opiomelanocortina/metabolismo
[Mh] Termos MeSH secundário: Hormônio Adrenocorticotrópico/sangue
Sequência de Aminoácidos
Animais
Ensaio de Imunoadsorção Enzimática
Cavalos
Adeno-Hipófise Parte Intermédia/enzimologia
Pró-Opiomelanocortina/sangue
Pró-Opiomelanocortina/química
Pró-Opiomelanocortina/genética
Pró-Proteína Convertase 1/genética
Pró-Proteína Convertase 1/metabolismo
Pró-Proteína Convertase 2/genética
Pró-Proteína Convertase 2/metabolismo
RNA Mensageiro/metabolismo
Homologia de Sequência de Aminoácidos
alfa-MSH/sangue
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Peptides); 0 (RNA, Messenger); 581-05-5 (alpha-MSH); 66796-54-1 (Pro-Opiomelanocortin); 9002-60-2 (Adrenocorticotropic Hormone); EC 3.4.21.93 (Proprotein Convertase 1); EC 3.4.21.94 (Proprotein Convertase 2)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180109
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190796


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[PMID]:29200850
[Au] Autor:Aliu H; Rask C; Brimnes J; Andresen TL
[Ad] Endereço:Immunology Department, In vivo Biology Team, ALK Abelló A/S, Hørsholm.
[Ti] Título:Enhanced efficacy of sublingual immunotherapy by liposome-mediated delivery of allergen.
[So] Source:Int J Nanomedicine;12:8377-8388, 2017.
[Is] ISSN:1178-2013
[Cp] País de publicação:New Zealand
[La] Idioma:eng
[Ab] Resumo:Immunotherapy by sublingual administration of allergens provides high patient compliance and has emerged as an alternative to subcutaneous immunotherapy for the treatment of IgE-associated allergic diseases. However, sublingual immunotherapy (SLIT) can cause adverse events. Development of allergen delivery systems enabling more efficient delivery and hence lower allergen load might reduce the adverse events. In the present study, we have investigated neutral and cationic liposomes as delivery systems of ovalbumin (OVA), as a model allergen, in an OVA-induced allergic airway inflammation model. We investigated the liposome carriers' ability to improve tolerance induction of antigens compared to the corresponding dose of free OVA. Mice were treated sublingually over 2 weeks with free or liposome encapsulated OVA followed by intraperitoneal injections and intranasal challenge. Mice sublingually treated with OVA-liposomes showed a significant reduction of airway eosinophilia and splenocyte proliferation in comparison to free OVA. A similar nonsignificant pattern was seen for OVA-specific IgE antibodies. In addition, reduced levels of interferon-γ and interleukin-5 were observed in spleen cell culture supernatants from OVA-liposome-treated mice compared to the sham-treated group. In conclusion, in vivo efficacy data showed that prophylactic SLIT with OVA-liposomes is significantly more effective in preventing allergic inflammation than the corresponding dose of free OVA.
[Mh] Termos MeSH primário: Alérgenos/administração & dosagem
Sistemas de Liberação de Medicamentos
Imunoterapia Sublingual
[Mh] Termos MeSH secundário: Alérgenos/imunologia
Animais
Citocinas/metabolismo
Ensaio de Imunoadsorção Enzimática
Feminino
Lipídeos/química
Lipossomos
Camundongos Endogâmicos BALB C
Ovalbumina/imunologia
Pneumonia/imunologia
Pneumonia/patologia
Pneumonia/prevenção & controle
Baço/imunologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Allergens); 0 (Cytokines); 0 (Lipids); 0 (Liposomes); 9006-59-1 (Ovalbumin)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171205
[St] Status:MEDLINE
[do] DOI:10.2147/IJN.S137033



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