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1.
病例1,男,1岁6个月,咳嗽半个月、发热1周;病例2,男,11个月,反复鹅口疮3个月,咳嗽20 d。2例幼儿血培养阳性,均为马尔尼菲篮状菌,同时都存在免疫缺陷,非HIV感染,影像学提示肺部有多发小结节影,伏立康唑治疗后临床病愈出院,随访12个月无复发。  相似文献   

2.
马尔尼菲篮状菌(Talaromyces marneffei),旧称为马尔尼菲青霉菌(Penicillium marneffei),流行于东南亚和中国南部。法国Capponi等[1]在1956年从竹鼠体内分离的青霉菌属温控双相条件致病菌,室温25℃条件下表现为菌丝相,37℃环境下表现为酵母相,酵母相菌体具有致病性。马尔尼菲篮状菌病主要集中于免疫力低下人群,尤其HIV患者,若得不到有效的治疗,病死率极高[2,3]。近年来,感染T.marneffei发病率上升趋势明显[4],其传播途径最常见是经呼吸道吸入T.marneffei孢子导致感染。  相似文献   

3.
马尔尼菲篮状菌Talaromyces marneffei是一种温度双相性致病真菌,原名马尔尼菲青霉Penicillium marneffei。马尔尼菲篮状菌病是由马尔尼菲篮状菌感染引起的一种严重的深部真菌病,主要流行于东南亚地区,在我国主要以南方地区多见,该病与HIV/AIDS的流行有高度相关性。近年来,随着艾滋病发病率的上升,马尔尼菲篮状菌病的发病率呈逐年上升趋势。该病发病隐匿,病死率高,但致病机制尚不明确。动物模型能够为疾病的发病机理和临床治疗等研究提供充分有力的证据,本文综述了马尔尼菲篮状菌感染动物模型的研究进展,对几种新型的动物模型进行了探讨。  相似文献   

4.
患者,男,28岁,因“腹痛半个月”入院。于当地诊所抗感染治疗1周未见好转遂转入我院。体检发现双侧颌下、颏下、颈部可触及数个肿大的淋巴结,最大30 mm×30 mm,质韧,表面光滑,活动度可。无皮疹。心双肺听诊无异常。腹壁韧,中上腹压痛,无反跳痛及肌紧张,可触及包块,位于左中上腹,最大约60 mm×40 mm,不易活动。肝脾肋下未触及。肠鸣音正常,双下肢无水肿。完善淋巴结活检、下一代测序(next-generation sequencing, NGS)等相关检查,明确诊断为马尔尼菲篮状菌感染。采用两性霉素B微量泵泵入近半个月,后改用伏立康唑静脉注射半个月,出院后继续口服伏立康唑治疗2个月。患者免疫功能正常,无基础疾病,3个月后复查示:浅表淋巴结未触及肿大。腹软,全腹无压痛,无反跳痛及肌紧张,未触及腹部包块。腹部CT示:淋巴结较前减少、减小,范围较前减少。病情较前明显好转,随访中。  相似文献   

5.
患者,男,32岁,反复淋巴结肿大、发热伴皮疹2年,广谱抗生素、抗结核治疗无效,肺部CT提示两肺内多发结节,血γ干扰素抗体阳性,皮肤活检组织、淋巴结组织、肺穿刺活检组织均培养出马尔尼菲篮状菌,予两性霉素B脂质体联合伏立康唑治疗效果佳。  相似文献   

6.
<正>马尔尼菲篮状菌感染是最常见的艾滋病相关机会性感染之一,是东南亚国家及我国南部省份艾滋病相关死亡的主要原因,若不及时诊治,其死亡率高达100%[1]。目前对于马尔尼菲篮状菌感染的治疗首选为两性霉素B[2],但其副作用大、不良反应多,导致许多患者都难以耐受,伏立康唑已成为其替代治疗的首选。本文对伏立康唑在马尔尼菲篮状菌感染中的应用进行综述。  相似文献   

7.
马尔尼菲篮状菌是马尔尼菲篮状菌病的致病菌,具有不同交配型,且交配型分布具有地域差异.交配型是影响某些真菌药物敏感性的因素之一,但是否影响马尔尼菲篮状菌的药物敏感性不详.为了解马尔尼菲篮状菌交配型和其药物敏感性的关系,本研究检测了不同交配型马尔尼菲篮状菌对7种抗真菌药物的敏感性.结果显示,与MAT-1型马尔尼菲篮状菌相比...  相似文献   

8.
患者,女,43岁,发现颈部多发淋巴结肿大11个月,取淋巴结活检后诊断为“淋巴结核”,抗结核治疗期间患者左上眼睑出现肿胀,行“左眼眼眶肿物摘除术(前路开眶)+带蒂皮瓣移植术”,术后脓液培养示:马尔尼菲篮状菌,初始予两性霉素B治疗,后因肌酐升高改为口服伊曲康唑200 mg, 2次/天,治疗7周后好转出院。院外口服伊曲康唑200 mg, 2次/天,6个月后续以200 mg, 1次/天,治疗8个月,随访两年未复发。  相似文献   

9.
孔华忠 《菌物系统》1999,18(1):9-11
新种短密篮状菌,其无性型为短密梅丽霉,它的子囊果原基可能是由卷曲的菌丝形成;子囊孢子的壁平滑或近于平滑;帚状枝主要是三轮生成三轮和双轮生于同一个孢梗茎的顶端,偶有双轮生或不规则者。这些特征和近似种榛色篮状菌具有明显的区别。  相似文献   

10.
新种短密篮状菌(Talaromycesbrevicompactussp.nov.),其无性型为短密梅丽霉(Merimblabrevicompactasp.nov.)。它的子囊果原基可能是由卷曲的菌丝形成;子囊孢子的壁平滑或近于平滑;帚状枝主要是三轮生或三轮和双轮生于同一个孢梗茎的顶端,偶有双轮生或不规则者。这些特征和近似种榛色篮状菌[T.arellaneus(Thom&Turesson)C.RBenj.]具有明显的区别。另外,该新种在一般标准条件下培养未发现有性型。在偶然的情况下发现了有性型。曾几次重复试验,只在查氏(CA)斜面上20℃时才产生有性型(详见正文)。但是,它也很快就完全失去了产生有性型的能力。  相似文献   

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13.
Xue  Xiaochun  Zou  Jun  Fang  Wenjie  Liu  Xiaogang  Chen  Min  Arastehfar  Amir  Ilkit  Macit  Zheng  Yanqing  Qin  Jianglong  Peng  Zhipeng  Hu  Dongying  Liao  Wanqing  Pan  Weihua 《Mycopathologia》2022,187(2-3):169-180

Knowledge about the clinical characteristics and prognostic factors of Talaromyces marneffei infection in children is limited, especially in HIV-positive children. We performed a retrospective study of all HIV-positive pediatric inpatients with T. marneffei infection in a tertiary hospital in Southern China between 2014 and 2019 and analyzed the related risk factors of poor prognosis using logistic regression. Overall, 28 cases were enrolled and the prevalence of talaromycosis in AIDS children was 15.3% (28/183). The median age of the onset was 8 years (range: 1–14 years). The typical manifestation of skin lesion with central umbilication was not common (21.4%). All the children had very low CD4+ cell counts (median 13.5 cells/μL, range: 3–137 cells/μL) on admission. 92.9% children were misdiagnosed and talaromycosis was only noted after positivity for HIV infection. 89.3% diagnoses of T. marneffei infections were based on positive blood cultures, with a long culture time (median 7 days, range from 3–14 days). The sensitivity of fungus 1,3-β-D-glucan assay was 63.2%. Amphotericin B was superior to itraconazole in the induction antifungal therapy of talaromycosis in HIV-positive children. A six-month follow-up revealed a 28.6% mortality. Lower ratio of CD4+/CD8+ and amphotericin B treatment not over 7 days predicted poor prognosis. Our retrospective study provided an overview and update on the current knowledge of talaromycosis in HIV-positive children. Pediatricians in endemic areas should be aware of mycoses to prevent misdiagnosis. 1,3-β-D-glucan assay did not show optimal sensitivity. Amphotericin B treatment over 7 days can improve poor prognosis.

  相似文献   

14.
Guo  Jing  Li  Bing-Kun  Li  Tian-Min  Wei  Fang-Lin  Fu  Yu-Jiao  Zheng  Yan-Qing  Pan  Kai-Su  Huang  Chun-Yang  Cao  Cun-Wei 《Mycopathologia》2019,184(6):735-745

Knowledge about the clinical and laboratory characteristics and prognosis of Talaromyces marneffei infection in children is limited. A retrospective study was conducted on pediatric patients with disseminated T. marneffei infection in a clinical setting. Extracted data included demographic information (age and sex), clinical features, laboratory findings, treatment, and prognosis. Eleven HIV-negative children were enrolled. The male/female ratio was 8:3. The median age of onset was 17.5 months (3.5–84 months). The mortality rate in these children was 36.36% (4/11). Seven children had underlying diseases. All of the children had multiple immunoglobulin abnormalities and immune cell decline. Ten children received voriconazole treatment, and most of the children (7/10) had a complete response to therapy at primary and long-term follow-up assessment; only three children died of talaromycosis. One patient recovered from talaromycosis but died of leukemia. The child who received itraconazole treatment also showed clinical improvement. No adverse events associated with antifungal therapies were recorded during and after the treatment. Talaromycosis is an indicator disease for undiagnosed severe immunodeficiencies in children. Awareness of mycoses in children by pediatricians may prompt diagnosis and timely treatment. Voriconazole is an effective, well-tolerated therapeutic option for disseminated T. marneffei infection in non-HIV-infected children.

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15.
BackgroundTalaromyces marneffei is an opportunistic dimorphic fungus prevalent in Southeast Asia. We previously demonstrated that Mp1p is an immunogenic surface and secretory mannoprotein of T. marneffei. Since Mp1p is a surface protein that can generate protective immunity, we hypothesized that Mp1p and/or its homologs are virulence factors.Conclusions/SignificanceMp1p is a key virulence factor of T. marneffei. Mp1p mediates virulence by improving the survival of T. marneffei in macrophages.  相似文献   

16.
植物苯丙氨酸解氨酶基因的研究进展   总被引:9,自引:0,他引:9  
苯丙氨酸解氨酶(phenylalanineammonia-lyase,PAL)是连接植物初级代谢和苯丙烷类代谢、催化苯丙烷类代谢第一步反应的酶。综述植物PAL基因的研究进展,主要包括PAL基因的结构特点、表达特点和PAL基因表达的调控机制,并指出今后对PAL基因的研究方向。  相似文献   

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