Microbiologica最新文献_第3页

Possible relationship between Chlamydia trachomatis and acquired immunodeficiency syndrome. 沙眼衣原体与获得性免疫缺陷综合征的可能关系。

Microbiologica Pub Date : 1992-07-01

R C Ghinsberg, Y Nitzan

引用次数: 0

Use of enzyme linked immunosorbent assay for estimation of antibody to Newcastle disease virus. 用酶联免疫吸附法测定新城疫病毒抗体。

Microbiologica Pub Date : 1992-07-01

V A Srinivasan, G S Reddy, A P Kalanidhi

引用次数: 0

Density-dependent responsiveness to autocrine growth factors of Epstein-Barr virus transformed human B lymphocytes. eb病毒转化人B淋巴细胞对自分泌生长因子的密度依赖性反应。

Microbiologica Pub Date : 1992-07-01

C Garzelli, A Bazzichi, A M Dayah, M Manunta, M Incaprera

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GM-CSF production by CD4+ T-lymphocytes is selectively impaired during the course of HIV-1 infection. A possible indication of a preferential lesion of a specific subset of peripheral blood CD4+ T-lymphocytes. 在HIV-1感染过程中，CD4+ t淋巴细胞产生的GM-CSF选择性受损。可能是外周血CD4+ t淋巴细胞特定亚群优先病变的指征。

Microbiologica Pub Date : 1992-07-01

M C Re, G Zauli, G Furlini, M Giovannini, S Ranieri, E Ramazzotti, M Vignoli, M La Placa

{"title":"GM-CSF production by CD4+ T-lymphocytes is selectively impaired during the course of HIV-1 infection. A possible indication of a preferential lesion of a specific subset of peripheral blood CD4+ T-lymphocytes.","authors":"M C Re, G Zauli, G Furlini, M Giovannini, S Ranieri, E Ramazzotti, M Vignoli, M La Placa","doi":"","DOIUrl":"","url":null,"abstract":"The production of granulocyte/macrophage-colony stimulating factor (GM-CSF), interleukin-1 beta (IL-1 beta) and tumor necrosis factor alpha (TNF-alpha) were evaluated in the supernatants of short-term cultures of purified CD4+ T-lymphocytes and enriched monocytes obtained from peripheral blood (PB) of 35 HIV-1 seropositive (+) asymptomatic individuals, stages I-II of the Walter Reed (WR) classification, 15 HIV (+) symptomatic patients (WR V-VI) and 40 HIV-1 seronegative normal blood donors. IL-1 beta and TNF-alpha production by either enriched monocytes or isolated CD4+ T-cells, was similar in HIV-1 (+) asymptomatic, symptomatic subjects and normal controls. GM-CSF level in enriched monocyte culture supernatants did not show any significant difference in the three groups of subjects under investigation. On the other hand, GM-CSF production by isolated CD4+ T-lymphocytes was two-fold decreased in HIV-1 (+) asymptomatic subjects and five-fold decreased in HIV-1 (+) symptomatic patients with respect to normal blood donors. The decline in GM-CSF production was clearly correlated with viral isolation from patient's PB light density mononuclear cells (r = -0.920, p less than 0.01). The selective and progressive decline in GM-CSF production by CD4+ T-lymphocytes, starting from early stages of HIV-1 infection, suggest a preferential lesion of a specific subset of CD4+ T-lymphocytes characterized by an intense production of GM-CSF and may contribute to explain the deranged inflammatory and immune responses which characterize the course of HIV-1 infection.","PeriodicalId":77264,"journal":{"name":"Microbiologica","volume":"15 3","pages":"265-70"},"PeriodicalIF":0.0,"publicationDate":"1992-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12527705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phenotypic variation of surface antigenic determinants in Trichomonas vaginalis detected by monoclonal antibodies. 单克隆抗体检测阴道毛滴虫表面抗原决定因子的表型变异。

Microbiologica Pub Date : 1992-07-01

P L Fíori, P Rappelli, C Manca, A Mattana, P Cappuccinelli

引用次数: 0

Prevalence of genital papilloma virus infections in asymptomatic and symptomatic women, studied with a combined dot-blot and Southern blot procedure. 无症状和有症状妇女生殖器乳头状瘤病毒感染的患病率，用点印迹和Southern印迹联合程序研究。

Microbiologica Pub Date : 1992-07-01

A Hjerpe, P Bistoletti, L Dillner, P A Mårdh, G Magnusson

{"title":"Prevalence of genital papilloma virus infections in asymptomatic and symptomatic women, studied with a combined dot-blot and Southern blot procedure.","authors":"A Hjerpe, P Bistoletti, L Dillner, P A Mårdh, G Magnusson","doi":"","DOIUrl":"","url":null,"abstract":"A technique for the detection and typing of genital infections with human papilloma virus (HPV) is described. Following a non-invasive sampling and a simplified preparation procedure, the analysis was performed as a combined dot-blot and Southern blot analysis, where the former test was used to exclude cases without demonstrable content of HPV DNA. The subgenomic probes used in the Southern blot analyses have a higher specificity than can be achieved with genomic ones, and only one band is obtained for each of HPV types 6, 11, 16, 18, 31, 33 and 35. Extra bands indicating the presence of cross-reacting HPV of undetermined type occurred in only 0.7% of the 1,268 cases tested. HPV was demonstrated in 7.8% of the 612 health control samples and in 16% of 634 consecutive samples from patients with symptoms. All but type 18 occurred more commonly in symptomatic than in asymptomatic patients. Presence of HPV also correlated to cervical intraepithelial neoplasia (CIN) in simultaneously collected smears. The HPV was demonstrated in 13% of patients with normal cytology, in 45% with CIN and in 82% of patients with invasive carcinoma. All types of HPV occurred more commonly in CIN patients, while only types 16, 18, 31 and 33 were found in the patients with cancer.","PeriodicalId":77264,"journal":{"name":"Microbiologica","volume":"15 3","pages":"297-301"},"PeriodicalIF":0.0,"publicationDate":"1992-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12497187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Studies on the epidemiology of child infections in the Bari area (south Italy). V. Epidemiology of Toxoplasma gondii infections. 意大利南部巴里地区儿童感染流行病学研究。五、刚地弓形虫感染的流行病学。

Microbiologica Pub Date : 1992-07-01

G Leogrande

引用次数: 0

Cytotoxic activity and IL-1 production in mice infected with Aspergillus niger. 黑曲霉感染小鼠的细胞毒活性和IL-1的产生。

Microbiologica Pub Date : 1992-07-01

N Benedetto, P Sabatini, E Galdiero, C Romano Carratelli

引用次数: 0

Antibiotic resistance and plasmids of some human nasal isolates of Staphylococcus aureus. 一些人鼻分离金黄色葡萄球菌的抗生素耐药性和质粒。

Microbiologica Pub Date : 1992-04-01

A A Salamah

引用次数: 0

Production of toxic shock syndrome toxin-1 (TSST-1) by Staphylococcus aureus strains isolated from humans, animals and foods in Nigeria. 尼日利亚从人类、动物和食品中分离的金黄色葡萄球菌菌株产生中毒性休克综合征毒素-1 (TSST-1)

Microbiologica Pub Date : 1992-04-01

A A Adesiyun, W Lenz, K P Schaal

{"title":"Production of toxic shock syndrome toxin-1 (TSST-1) by Staphylococcus aureus strains isolated from humans, animals and foods in Nigeria.","authors":"A A Adesiyun, W Lenz, K P Schaal","doi":"","DOIUrl":"","url":null,"abstract":"The production frequency of toxic shock syndrome toxin-1 (TSST-1) amongst Staphylococcus aureus strains isolated from humans, animals and foods in Nigeria was investigated. Of 1015 strains tested, 120 (11.8%) were positive for TSST-1. Thirty one (16.0%) of 194 strains from human diarrhoea and wounds were positive compared to 47 (7.1%) of 666 isolates from eight animal species. Goat strains were most often positive for this toxin (17.0%). A total of 42 (27.1%) of 155 strains from foods were positive for TSST-1. Regardless of source, phage non-typable strains (48.3%) were most common amongst TSST-1 producers followed by strains sensitive to phages in several groups (mixed), 18.3%, and phage group III strains (17.5%). Only 6 were phage group I strains (5.0%). TSST-1 producing strains were mostly resistant to penicillin. Eighty-four (70.0%) TSST-1 producers were also enterotoxigenic with staphylococcal enterotoxin C (SEC) most frequently elaborated as 46 (38.9%) strains were positive. However, 42 (35.5%) and 39 (32.5%) strains producing TSST-1 were also positive for SEA and SEB, respectively. It was concluded that TSST-1 producing strains of S. aureus are widespread in humans, animals and foods in Nigeria and such distribution may play some role in the epidemiology of toxic shock syndrome, the prevalence of which is currently unknown in the environment.","PeriodicalId":77264,"journal":{"name":"Microbiologica","volume":"15 2","pages":"125-33"},"PeriodicalIF":0.0,"publicationDate":"1992-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12770050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0