Abstract:
:Antibody to recombinant hepatitis C virus (HCV) protein C100 (anti-C100) was measured for a period of 6 months by enzyme immunoassay in nine prospectively followed non A-nonB (NANBH) cases which occurred after cardiac surgery at a hospital in Rio de Janeiro (Brazil). At least seven cases were infected with HCV; four of these developed chronic hepatitis as shown in liver biopsy at the 6th month after transfusion. The first elevation of alanine aminotransferase (ALT) occurred between 15 and 45 days after transfusion and ALT values remained elevated for 45 days in resolving hepatitis, whereas in chronic cases fluctuation levels were observed until the end of the study. Anti-C100 appeared after 15 to 30 days, decreased after some weeks, and rose finally to high concentrations except in one resolving case where it disappeared. We conclude that both in acute and chronic hepatitis C an early antibody response occurs which may, however, be undetectable in some cases. After several months all chronic and some resolving cases develop a second stronger response.
journal_name
Med Microbiol Immunoljournal_title
Medical microbiology and immunologyauthors
Yoshida CF,Soares OA,Schatzmayr HG,Uy A,Gerlich WHdoi
10.1007/BF00191549keywords:
subject
Has Abstractpub_date
1992-01-01 00:00:00pages
279-87issue
6eissn
0300-8584issn
1432-1831journal_volume
180pub_type
杂志文章abstract::Phosphorylcholine (ChoP) is covalently incorporated into bacterial surface structures, contributing to host mimicry and promoting adhesion to surfaces. Our aims were to determine the frequency of ChoP display among Aggregatibacter actinomycetemcomitans strains, to clarify which surface structures bear ChoP, and whethe...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-018-0554-1
更新日期:2018-11-01 00:00:00
abstract::Human cytomegalovirus (HCMV) infection modulates the host cell cycle to create an environment that is optimal for viral gene expression, DNA replication, and production of infectious virus. The virus mostly infects quiescent cells and thus must push the cell into G1 phase of the cell cycle to co-opt the cellular mecha...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章,评审
doi:10.1007/s00430-015-0396-z
更新日期:2015-06-01 00:00:00
abstract::Cytotoxic effects of a leukocidin from Fusobacterium necrophorum were demonstrated on bovine hepatic cells. The cytotoxic response was dose-dependent and could be inhibited by homologous antiserum. Scanning electron microscopy revealed damaged hepatic cell surface. These findings indicated a pathogenic role of the leu...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF00190308
更新日期:1988-01-01 00:00:00
abstract::A 33-kDa protein (TB33) was isolated from a delipidated cell sonicate (CS) of Mycobacterium tuberculosis H37Rv (grown in Middlebrook 7H9 broth supplemented with glucose) using immobilized metal affinity chromatography (IMAC) on a nickel-nitrilotriacetic acid (Ni-NTA) column. TB33 could not be isolated from the culture...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s004300050025
更新日期:1996-11-01 00:00:00
abstract::Lactoferrin (Lf) is an iron-binding protein which plays an important role in the host defense systems of different mucosal surfaces including the intestinal mucosa. In the present research the role of apo-Lf and iron-saturated Lf in the invasion process of enteroinvasive bacteria, grown in iron stress or excess, was i...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF00195948
更新日期:1993-03-01 00:00:00
abstract::Leprosy is a chronic infectious disease caused by Mycobacterium leprae. Previous studies have demonstrated that the difference among clinical forms of leprosy can be associated with the immune response of patients, mainly by T helper (Th) and regulatory T cells (Tregs). Then, aiming at clarifying the immune response, ...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-017-0519-9
更新日期:2017-12-01 00:00:00
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journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-012-0280-z
更新日期:2013-04-01 00:00:00
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journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02123791
更新日期:1981-01-01 00:00:00
abstract::In a randomized, placebo-controlled trial in Ghana, 67 onchocerciasis patients received 200-mg/day doxycycline for 4-6 weeks, followed by ivermectin (IVM) after 6 months. After 6-27 months, efficacy was evaluated by onchocercoma histology, PCR and microfilariae determination. Administration of doxycycline resulted in ...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00430-007-0062-1
更新日期:2008-09-01 00:00:00
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journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-016-0457-y
更新日期:2016-10-01 00:00:00
abstract::Influenza remains an important threat for human health, despite the extensive study of influenza viruses and the production of effective vaccines. In contrast to virus genetics determinants, host genetic factors with clinical impact remained unexplored until recently. The association between three single nucleotide po...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-018-0567-9
更新日期:2019-10-01 00:00:00
abstract::Fifty out of sixty-five isolates of coagulase-negative staphylococci displayed a positive CAMP-reaction due to synergism of an extracellular toxin with S. aureus beta-toxin on sheep erythrocytes. Of the CAMP-positive isolates, 40 were identified as S. epidermidis, 8 as S. hemolyticus, and 2 each as S. hominis and S. s...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02124812
更新日期:1985-01-01 00:00:00
abstract::Neutrophil extracellular traps (NETs) have recently been discovered as a central part of antimicrobial innate immunity. In the meanwhile, evidence accumulated that NETs are also generated upon non-infectious stimuli in various clinical settings. In acute or chronic inflammatory disorders aberrantly enhanced NET format...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章,评审
doi:10.1007/s00430-009-0121-x
更新日期:2009-11-01 00:00:00
abstract::While the antigen structure of yeast cell walls is well known, the immunological cross reactivity of these is often difficult to interpret. The cross reactions of eight yeasts were tested in rabbit hyperimmune sera by the indirect immunofluorescence test. Among the eight species examined were the medically important y...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02120806
更新日期:1979-01-01 00:00:00
abstract::Proteus mirabilis (P. mirabilis), a gram-negative enteric bacterium, frequently causes urinary tract infections. Many virulence factors of uropathogenic P. mirabilis have been identified, including urease, flagella, hemolysin and fimbriae. However, the functions of polyphosphate kinase (PPK), which are related to the ...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-015-0430-1
更新日期:2016-04-01 00:00:00
abstract::The stimulatory effect of lipopolysaccharide (LPS) on human macrophages was found to be neutralized by the detergent octylglucoside (OG). Both macrophage stimulation and reactivity in a limulus amebocyte lysate test were suppressed by suspension of LPS in OG at concentrations between 0.25 and 2.5 mM, whereas other sti...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s430-001-8019-2
更新日期:2001-04-01 00:00:00
abstract::The present study describes the respiratory immune response of mice to locally administered antigen, and the modulation of this response by systemic immunization. Intranasal immunization of mice with the A/PR/8/34 strain of influenza virus evoked local antibody response of the IgA type. The titer of the IgA antibodies...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02121133
更新日期:1978-11-17 00:00:00
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journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02123296
更新日期:1979-03-13 00:00:00
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journal_title:Medical microbiology and immunology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00277161
更新日期:1994-05-01 00:00:00
abstract::The sequencing of Leishmania major Friedlin chromosome 1 (Chr1), Chr3, and Chr4 has been completed. and several other chromosomes are well underway. The complete genome sequence should be available by 2003. Over 1,000 full-length new genes have been identified, with the majority (approximately 75%) having unknown func...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s004300100070
更新日期:2001-11-01 00:00:00
abstract::Earlier we reported that vaccination of leprosy patients with Mycobacterium w induces an immune response directed predominantly against low molecular weight antigens. One of these antigens, with a molecular mass of 30-kDa, was recognized by a majority of the vaccinated subjects as well as the tuberculoid leprosy patie...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF00579623
更新日期:1993-11-01 00:00:00
abstract::Immediate-early (IE) genes are the first genes to be transcribed during the lytic replication cycle of cytomegaloviruses (CMV), and encode nonstructural proteins, which are assumed to have mainly regulatory functions. The IE proteins may play important roles in the pathogenesis of CMV in vivo, for instance during the ...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章,评审
doi:10.1007/s00430-008-0076-3
更新日期:2008-06-01 00:00:00
abstract::Due to its ability to attach to polymeric surfaces Staphylococcus epidermidis is a common pathogen in chronic, medical device-associated infections. Attached S. epidermidis displays reduced susceptibility against a variety of antimicrobial substances, and little correlation between standard susceptibility test results...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-002-0125-2
更新日期:2002-10-01 00:00:00
abstract::Upon infection of human T-cell leukemia virus type I (HTLV-I)-carrying human T-cell lines such as MT-4, HTLV-III, a probable etiologic agent of acquired immune deficiency syndrome (AIDS) caused fast and strong cytopathic effects leading ultimately to the death of the cells. Such effects were preceded by the rapid indu...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02123869
更新日期:1986-01-01 00:00:00
abstract::The present study analyses the susceptibility of human bladder-derived cells (HT-1376) to the infection by herpes simplex virus type 2 (HSV-2) and Chlamydia trachomatis, as well as to the adhesiveness of uropathogenic bacteria. HT-1376 cells were efficiently infected by HSV-2 strain 333, as demonstrated by immunofluor...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s004300100067
更新日期:2001-09-01 00:00:00
abstract::NFR nude (nu/nu) and euthymic (+/nu) littermates were infected with coxsackievirus B3 (CBV-3) and assayed for virus persistence in the heart, pancreas and spleen, for development of myocarditis and for antibody production. The virus grew to higher titer and persisted longer in hearts of nu/nu mice. In both types of mi...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02123563
更新日期:1984-01-01 00:00:00
abstract::9 antigen distribution and sensitivity to the bactericidal effect of normal human serum were determined in 485 Proteus strains isolated from urine, blood, wounds, and feces. Of all strains, 62% could be grouped according to 25 0 antigens. The most frequent one, 0 3, appeared in 13% of all the strains. In blood culture...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF02121822
更新日期:1977-07-18 00:00:00
abstract::We have examined 118 oral squamous cell carcinomas, 72 oral leukoplakias, 12 cases of cheilitis and 65 of oral lichen planus for the presence of human papillomavirus (HPV) 6/11, 16 and 18 DNA by PCR/Southern blot hybridization. HPV DNA were found in 51/118 carcinomas (43.2%), in 16/72 (22.2%) leukoplakias, 3/12 (25.0%...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-002-0161-y
更新日期:2003-08-01 00:00:00
abstract::The new QuantiFERON-TB Gold Plus employs modified peptides optimized to elicit an IFNγ response from CD8+ cytotoxic T lymphocytes in addition to CD4+ T cells. With a view to improve the difficult identification of TB cases, we assessed the combination of two specific immunological markers comprising IFNγ secretion and...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/s00430-018-00576-4
更新日期:2019-04-01 00:00:00
abstract::A skim-milk fraction and a whey-protein concentrate (WPC) fraction were prepared from the cows that had been immunized with E. coli isolated from the mouse intestine. The antibacterial effect of these fractions against E. coli was examined. They contained antibody with a high affinity for E. coli strain 48, a represen...
journal_title:Medical microbiology and immunology
pub_type: 杂志文章
doi:10.1007/BF00189427
更新日期:1992-01-01 00:00:00