Abstract：
:Denaturing high-performance liquid chromatography (DHPLC) is a relatively new technique, which utilizes heteroduplex formation between wild-type and mutated DNA strands to identify point mutations. Heteroduplex molecules are separated from homoduplex molecules by ion-pair, reverse-phase liquid chromatography on a special column matrix with partial heat denaturation of the DNA strands. In order to investigate the application of this method for point mutation detection in drug-resistant genes of Mycobacterium tuberculosis, katG, rpoB, embB, gyrA, pncA and rpsL genes, which are responsible for isoniazid, rifampicin, ethambutol, fluoroquinolone, pyrazinamide and streptomycin resistance, respectively, were detected by temperature-mediated DHPLC in 10 multidrug-resistant and 10 drug-susceptible clinical isolates. The DHPLC data were compared with those from a conventional MIC test. The results show that DHPLC is cost-effective with high capacity and accuracy, and is potentially useful for genotypic screening for mutations associated with anti-tuberculosis drug resistance.
journal_name
Microbes Infectjournal_title
Microbes and infectionauthors
Shi R,Otomo K,Yamada H,Tatsumi T,Sugawara Idoi
10.1016/j.micinf.2005.06.008subject
Has Abstractpub_date
2006-01-01 00:00:00pages
128-35issue
1eissn
1286-4579issn
1769-714Xpii
S1286-4579(05)00234-0journal_volume
8pub_type
杂志文章abstract：:To obtain monkey-tropic viruses that are more closely related to HIV-1 than the original NL-DT5/NL-DT5R clones, we constructed six vif-chimeric and two site-specific vif-mutant viruses, and examined their growth ability. Different from NL-DT5/NL-DT5R, these viruses did not grow in monkey cells. We monitored the capabi...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2008.06.007
更新日期：2008-08-01 00:00:00
abstract：:Multilocus enzyme electrophoresis (MLEE) is the gold standard for taxonomy and strain typing of Leishmania, but has some limitations. An alternative reliable and fast genotyping method for addressing population genetic and key epidemiological questions, is multilocus microsatellite typing (MLMT). MLMT using 15 markers...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.12.009
更新日期：2007-03-01 00:00:00
abstract：:Recent studies by DNA-DNA hybridisation assays conducted on a large collection of Escherichia coli strains isolated from chickens, ducks and turkeys suffering from colibacillosis, showed that 76% of the strains were negative for the presence of the pap gene cluster. The objective of this paper was to study the virulen...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2004.03.006
更新日期：2004-06-01 00:00:00
abstract：:Clostridium difficile is now established as a major nosocomial pathogen. C. difficile infection is seen almost exclusively as a complication of antibiotic therapy, and is particularly associated with clindamycin and third-generation cephalosporins. Depletion of the indigenous gut microflora by antibiotic therapy has l...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(99)80054-9
更新日期：1999-04-01 00:00:00
abstract：:Comparative genomics and microarrays reveal that the genomes of different Salmonella enterica serovars are distinguished from each other by the presence or absence of hundreds of genes. The distribution of these variable genome regions is often not clonal. Therefore, lateral gene transfer (LGT) plays an important role...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(03)00186-2
更新日期：2003-09-01 00:00:00
abstract：:Helicobacter pylori infection induces chronic inflammation in the gastric mucosa with a marked increase in the number of lymphoid follicles consisting of infiltrating B and T cells, neutrophils, dendritic cells (DC) and macrophages. It has been suggested that an accumulation of mature DC in the tissue, resulting from ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2005.10.007
更新日期：2006-03-01 00:00:00
abstract：:In this report, we examined the genetic diversity of HIV-1 strains circulating in the city of Beira, the second largest metropolitan area in Mozambique. A total of 131 blood samples, collected between August and October 2003 from antiretroviral-naïve individuals, were characterized with a combined approach consisting ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.05.005
更新日期：2006-08-01 00:00:00
abstract：:Erythritol is a four-carbon sugar preferentially utilized by Brucella spp. The presence of erythritol in the placentas of goats, cows, and pigs has been used to explain the localization of Brucella to these sites and the subsequent accumulation of large amounts of bacteria, eventually leading to abortion. Here we show...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2013.02.002
更新日期：2013-06-01 00:00:00
abstract：:Population genetic structure and subdivision are key factors affecting the evolution of organisms. In this study, we analysed and compared the population genetic structure of the malaria parasite Plasmodium falciparum and its mosquito vector Anopheles gambiae over space and time in the Nianza Province, near Victoria L...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2007.12.021
更新日期：2008-03-01 00:00:00
abstract：:The Chlamydia trachomatis genome encodes glycolysis and pentose phosphate pathway enzymes, two ATP/ADP exchange proteins, and other energy transduction-related components. We asked if and when chlamydial genes specifying products related to energy transduction are expressed during active vs. persistent infection in in...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(01)01504-0
更新日期：2002-01-01 00:00:00
abstract：:Staphylococcus aureus infections are of major importance in human and veterinary medicine. Studies of the virulence of this bacterium are complicated by inconsistent results obtained in different animal models. We searched for an uncomplicated and inexpensive model suitable to study virulence of poultry strains of S. ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2012.09.006
更新日期：2012-11-01 00:00:00
abstract：:This study used a murine model of type 2 diabetes (BKS.Cg-Dock7(m) +/+Lepr(db)/J mice) to investigate the inflammatory and cellular mechanisms predisposing to Burkholderia pseudomallei infection and co-morbid diabetes. Homozygous db/db (diabetic) mice developed extreme obesity, dyslipidaemia and glucose intolerance le...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2011.07.008
更新日期：2011-12-01 00:00:00
abstract：:Vibrio cholerae induces either non-inflammatory diarrhea or inflammatory gastroenteritis, depending on the presence of cholera toxin, a fluid secretion inducer and a modulator of host immunity. In the absence of cholera toxin, other toxins induce inflammation, resulting in gastroenteritis. Thus, multiple toxins likely...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2003.08.007
更新日期：2003-11-01 00:00:00
abstract：:The bacterium Haemophilus ducreyi causes the sexually transmitted disease chancroid, which is characterized by the appearance of mucocutaneous, persistent ulcers on the external genitals. To identify carbohydrate receptors that mediate the attachment of this pathogen to host cells, we investigated the binding of 35S-m...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.05.009
更新日期：2006-08-01 00:00:00
abstract：:Major advances have recently been achieved in the area of microbial recognition by the innate immune system. In this Forum, we discuss important issues related to innate recognition of bacteria and protozoan parasites. In particular, we highlight the structural characterization of pathogen-associated molecular pattern...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)01625-8
更新日期：2002-07-01 00:00:00
abstract：:Tonsilloliths are a potential cause of oral malodor. In this study, microbial profiles and composition of tonsilloliths were determined using culture-independent molecular methods and scanning electron microscopy. 16S ribosomal RNA bacterial genes (16S rDNAs) isolated from tonsilloliths of 6 individuals were amplified...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.04.023
更新日期：2006-08-01 00:00:00
abstract：:Long-term protection against Toxoplasma gondii is dependent on robust CD8(+) T cell immunity. In the absence of this response, the host is unable to maintain chronicity, which results in recrudescence of infection and possible death. Factors needed for the persistence of protective CD8(+) T cells against the parasite ...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2012.07.018
更新日期：2012-11-01 00:00:00
abstract：:C/EBPbeta plays a pivotal role in activation of human immunodeficiency virus type 1 (HIV-1) in monocytes/macrophages. However, mechanisms for functional regulation of C/EBPbeta remain uncharacterized. Previous studies indicated that NF-kappaB activation by tumor necrosis factor (TNF) receptor family, which activates T...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2007.02.017
更新日期：2007-05-01 00:00:00
abstract：:Numerous Chlamydia trachomatis proteins have been identified as potential subunit vaccines, of which the major outer-membrane protein (MOMP) has, so far, proven the most efficacious. Recently, subunit A of the V-type ATP synthase (ATPase; TC0582) complex was shown to elicit partial protection against infection. Comput...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2015.12.002
更新日期：2016-04-01 00:00:00
abstract：:Macrophages serve as permissive niches for Escherichia coli (E. coli) K1 to attain high grade bacteremia in the pathogenesis of meningitis in neonates. Although pterin levels are a diagnostic marker for immune activation, the role of macrophages in pterin production and in the establishment of meningitis is unknown. H...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2013.10.013
更新日期：2014-02-01 00:00:00
abstract：:Porcine respiratory coronavirus (PRCV) potentiates respiratory disease and proinflammatory cytokine production in the lungs upon intratracheal inoculation with lipopolysaccharide (LPS) at 1 day of infection. This study aimed to quantify LPS-binding protein (LBP), CD14 and haptoglobin in the lungs throughout a PRCV inf...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2006.01.009
更新日期：2006-05-01 00:00:00
abstract：:We investigated the thymic and peripheral T-lymphocyte subsets in BALB/c mice undergoing acute or chronic Trypanosoma cruzi infection, in terms of expression of particular Vbeta rearrangements of the T-cell receptor. We first confirmed the severe depletion of CD4(+)CD8(+) thymocytes following acute T. cruzi infection....
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(03)00156-4
更新日期：2003-08-01 00:00:00
abstract：:Otitis media (OM) is a highly prevalent paediatric disease with both bacterial and viral triggers of infection. This study has investigated how combinations of bacteria associated with nasal colonisation and the occurrence and absence of viral infection (Sendai virus) induce OM in a mouse nasal colonisation model. The...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2009.03.001
更新日期：2009-04-01 00:00:00
abstract：:We previously reported prolonged HIV-1 transcriptional gene silencing by an RNA duplex targeting a sequence located within the NF-kappaB binding motif of the HIV-1 promoter in a susceptible HeLa cell line. Here we report extremely prolonged suppression of productive HIV-1 infection in a T-cell line (Molt-4) by a retro...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2009.02.003
更新日期：2009-04-01 00:00:00
abstract：:Immune-mediated clearance of virus from the central nervous system (CNS) differs from that of the other organs. Mechanisms of virus control are largely dependent upon the target cell type. Although cytolytic T lymphocytes may mediate clearance of virus from glial cells, non-cytolytic mechanisms mediated by antibody an...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(03)00047-9
更新日期：2003-04-01 00:00:00
abstract：:Protective immunity against cutaneous leishmaniasis is dependent on the induction of Th1/Tc1 immune responses resulting in efficient parasite elimination. In this review, the mechanisms leading to protection are discussed with special focus on the role of Leishmania major-infected dendritic cells (DC) in induction of ...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2004.05.024
更新日期：2004-10-01 00:00:00
abstract：:We investigated the relationship between antibody response to the major Paracoccidioides brasiliensis antigen, a 43-kDa glycoprotein, and the two paracoccidioidomycosis (PCM) clinical presentations, the juvenile and the adult forms. Total immunoglobulin G (IgG), IgG isotypes, and IgA anti-gp43 antibodies were determin...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/s1286-4579(99)80022-7
更新日期：1999-04-01 00:00:00
abstract：:Malaria is an infectious disease caused by parasites of the genus Plasmodium. This intraerythrocytic protozoan produces hemozoin (HZ), an insoluble crystalline metabolite resulting from the heme detoxification mechanism. This review will focus on HZ biosynthesis and synthetic preparation, but in particular on its effe...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/j.micinf.2010.07.001
更新日期：2010-11-01 00:00:00
abstract：:Viral infections induce first a loss and then an increase in natural killer (NK) and CD8(+) T cells. NK cells expressing Ly49G2 were selectively expanded by several viruses and poly I:C. CD8(+) T cells expressing Ly49G2 were selectively expanded by poly I:C and participated in the antigen-specific response to lymphocy...
journal_title：Microbes and infection
pub_type： 杂志文章,评审
doi：10.1016/s1286-4579(02)00031-x
更新日期：2002-12-01 00:00:00
abstract：:Infection with Trypanosoma cruzi, the etiologic agent in Chagas disease, may result in heart disease. Over the last decades, Chagas disease endemic areas in Latin America have seen a dietary transition from the traditional regional diet to a Western style, fat rich diet. Previously, we demonstrated that during acute i...
journal_title：Microbes and infection
pub_type： 杂志文章
doi：10.1016/j.micinf.2018.07.001
更新日期：2019-01-01 00:00:00
