zygomycosis

接合菌病
  • 文章类型: Case Reports
    毛霉菌病是一种机会性真菌感染,主要影响免疫功能低下的个体,很少表现为肾毛霉菌病(RM)。对于许多医生来说,诊断可能是具有挑战性的。我们报告了一个罕见的初级病例,单侧RM引发2型糖尿病患者的糖尿病酮症酸中毒。该病例后来并发支气管胸膜瘘和美罗培南耐药克雷伯菌感染。患者最终接受了手术治疗,脂质体两性霉素B,早期诊断和及时治疗这种危及生命的疾病及其并发症对降低死亡率具有重要意义。
    Mucormycosis is an opportunistic fungal infection that primarily affects immunocompromised individuals and rarely presents as renal mucormycosis (RM). Diagnosis can be challenging for many physicians. We report a rare case of primary, unilateral RM which triggered diabetic ketoacidosis in a type 2 diabetic patient. The case was later complicated by a bronchopleural fistula and a meropenem-resistant Klebsiella infection. The patient was ultimately treated with surgical intervention, liposomal amphotericin B, and polymyxine E. Early diagnosis and timely treatment of this life-threatening disease and its complications are significant in reducing mortality.
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  • 文章类型: Journal Article
    在COVID-19大流行期间,COVID-19患者的毛霉菌病病例显着增加,尤其是在印度,但不是唯一的。所呈现的病例突出了毛霉菌病的异质性,强调认识诱发因素的重要性,如免疫抑制,由于合并症或药物。由于非特异性临床表现,诊断毛霉菌病构成了挑战,需要多学科的方法来准确诊断。治疗涉及多管齐下的方法,围绕早期开始抗真菌治疗以及手术干预和基础疾病的管理,重点是控制免疫抑制。了解COVID-19与毛霉菌病易感因素之间的关系是制定预防和治疗策略的基础。
    During the COVID-19 pandemic, a significant increase in cases of mucormycosis was observed in COVID-19 patients, especially in India, but not exclusively. The presented cases highlight the heterogeneous nature of mucormycosis, emphasizing the importance of recognizing predisposing factors, such as immunosuppression, due to comorbidities or medication. Diagnosing mucormycosis poses a challenge due to nonspecific clinical manifestations, requiring a multidisciplinary approach for accurate diagnosis. Treatment involves a multi-pronged approach centered around the early initiation of antifungal therapy alongside surgical intervention and the management of underlying conditions, with an emphasis on controlling immunosuppression. Understanding the relationship between COVID-19 and predisposing factors for mucormycosis is fundamental for developing prevention and treatment strategies.
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  • 文章类型: Journal Article
    在初步免疫学研究中用昆虫代替哺乳动物研究模型,对无脊椎动物防御系统的兴趣越来越大。免疫应答受细胞因子调节;然而,虽然它们在哺乳动物中的作用是众所周知的,人们对它们在昆虫中的作用知之甚少。研究昆虫免疫学的合适目标是海绵状夜蛾(鳞翅目),蜡蛾:人类真菌和细菌病原体的常见宿主。G.mellonella也是研究细胞因子样蛋白存在的理想主题。
    本研究的主要目标是在昆虫免疫活性细胞中检测18种哺乳动物细胞因子(IL-1α,IL-1β,IL-2、IL-3、IL-6、IL-7、IL-8、IL-12、IL-13、IL-15、IL-17、IL-19、IFN-γ、TNF-α,TNF-β,GM-CSF,M-CSF,G-CSF),在免疫反应中起重要作用,并指示真菌感染后其水平如何变化。
    在从感染昆虫病原真菌的G.melonella幼虫的血细胞中检测到细胞因子样蛋白水平的变化,C.死因。使用荧光显微镜(在培养的血细胞中)和流式细胞术(在新鲜收集的血淋巴中)确认细胞因子蛋白的存在。ELISA测试用于检测所检查的细胞因子样蛋白的浓度变化。
    我们的发现表明,在用冠状芽孢杆菌感染期间,海绵状芽孢杆菌血细胞中存在18种细胞因子样分子。取自受感染幼虫的血细胞对六种细胞因子样蛋白(GM-CSF,M-CSF,IL-3,IL-15,IL-1β和IL-19)与未处理的对照相比。ELISA检测显示IL-3和IL-15明显增高。M-CSF,真菌感染后血淋巴中IL-1α和IL-19的浓度,并显著降低TNF-β和G-CSF。
    我们的发现证实了所选择的细胞因子样分子存在于昆虫血细胞中,并且它们的浓度在真菌感染后发生变化,这可能表明它们在抗真菌免疫反应中发挥作用。
    UNASSIGNED: In response to the replace mammal research models with insects in preliminary immunological studies, interest has grown in invertebrate defense systems. The immunological response is regulated by cytokines; however, while their role in mammals is well understood, little is known of their function in insects. A suitable target for studies into insect immunology is Galleria mellonella (Lepidoptera), the wax moth: a common host for human fungal and bacterial pathogens. G. mellonella is also a perfect subject for studies into the presence of cytokine-like proteins.
    UNASSIGNED: The main goal of present research was detection in insect immunocompetent cells the 18 mammalian cytokines (IL-1α, IL-1β, IL-2, IL-3, IL-6, IL-7, IL-8, IL-12, IL-13, IL-15, IL-17, IL-19, IFN-γ, TNF-α, TNF-β, GM-CSF, M-CSF, G-CSF), which play important role in immunological response and indication how their level change after fungal infection.
    UNASSIGNED: The changes of cytokine-like proteins level were detected in hemocytes taken from G. mellonella larvae infected with entomopathogenic fungus, C. coronatus. The presence of cytokine-proteins was confirmed with using fluorescence microscopy (in cultured hemocytes) and flow cytometry (in freshly collected hemolymph). The ELISA test was used to detect changes in concentration of examined cytokine-like proteins.
    UNASSIGNED: Our findings indicated the presence of eighteen cytokine-like molecules in G. mellonella hemocytes during infection with C. coronatus. The hemocytes taken from infected larvae demonstrated higher fluorescence intensity for six cytokine-like proteins (GM-CSF, M-CSF, IL-3, IL-15, IL-1β and IL-19) compared to untreated controls. ELISA test indicated significantly higher IL-3 and IL-15. M-CSF, IL-1α and IL-19 concentration in the hemolymph after fungal infection, and significantly lower TNF-β and G-CSF.
    UNASSIGNED: Our findings confirm that the selected cytokine-like molecules are present in insect hemocytes and that their concentrations change after fungal infection, which might suggest that they play a role in the anti-fungal immunological response.
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  • 文章类型: Journal Article
    背景:与COVID-19相关的肺曲霉病(CAPA)和COVID-19相关的肺毛霉菌病(CAPM)混合霉菌感染的数据很少。
    目的:确定CAPM(混合霉菌感染)中共存CAPA的患病率,以及混合霉菌感染是否与早期死亡率(诊断≤7天)相关。
    方法:我们回顾性分析了从印度25个中心收集的关于COVID-19相关毛霉菌病的数据。我们仅包括CAPM,并排除了播散性或犀牛眶毛霉菌病的受试者。如果呼吸道标本在涂片上显示有纵隔菌丝,我们定义了共存的CAPA,组织病理学或培养生长的曲霉属。我们还比较了人口统计,诱发因素,COVID-19的严重程度,以及有和没有CAPA的CAPM患者的管理。使用病例控制设计,我们评估了混合霉菌感染(主要暴露)是否与CAPM早期死亡率相关.
    结果:我们纳入了105例CAPM患者。混合霉菌感染的患病率为20%(21/105)。混合霉菌感染患者早期死亡(9/21[42.9%]vs.15/84[17.9%];p=0.02)和6周生存率较差(7/21[33.3]vs.46/77[59.7%];p=0.03)比单独的CAPM。在成像方面,与CAPM相比,混合霉菌感染更常见于合并。共存CAPA(赔率比[95%置信区间],19.1[2.62-139.1])在校正COVID-19期间的低氧血症和其他因素后,与CAPM的早期死亡率独立相关。
    结论:CAPA和CAPM的共感染在我们的CAPM患者中并不少见,预示着预后较差。需要进行来自不同国家的前瞻性研究,以了解混合霉菌感染的影响。
    BACKGROUND: Data on mixed mould infection with COVID-19-associated pulmonary aspergillosis (CAPA) and COVID-19-associated pulmonary mucormycosis (CAPM) are sparse.
    OBJECTIVE: To ascertain the prevalence of co-existent CAPA in CAPM (mixed mould infection) and whether mixed mould infection is associated with early mortality (≤7 days of diagnosis).
    METHODS: We retrospectively analysed the data collected from 25 centres across India on COVID-19-associated mucormycosis. We included only CAPM and excluded subjects with disseminated or rhino-orbital mucormycosis. We defined co-existent CAPA if a respiratory specimen showed septate hyphae on smear, histopathology or culture grew Aspergillus spp. We also compare the demography, predisposing factors, severity of COVID-19, and management of CAPM patients with and without CAPA. Using a case-control design, we assess whether mixed mould infection (primary exposure) were associated with early mortality in CAPM.
    RESULTS: We included 105 patients with CAPM. The prevalence of mixed mould infection was 20% (21/105). Patients with mixed mould infection experienced early mortality (9/21 [42.9%] vs. 15/84 [17.9%]; p = 0.02) and poorer survival at 6 weeks (7/21 [33.3] vs. 46/77 [59.7%]; p = 0.03) than CAPM alone. On imaging, consolidation was more commonly encountered with mixed mould infections than CAPM. Co-existent CAPA (odds ratio [95% confidence interval], 19.1 [2.62-139.1]) was independently associated with early mortality in CAPM after adjusting for hypoxemia during COVID-19 and other factors.
    CONCLUSIONS: Coinfection of CAPA and CAPM was not uncommon in our CAPM patients and portends a worse prognosis. Prospective studies from different countries are required to know the impact of mixed mould infection.
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  • 文章类型: Case Reports
    毛霉菌病是一种经常致命的真菌感染,最常影响控制不佳的糖尿病或其他免疫抑制状态的患者。我们报告了一名正在进行自然疗法治疗的患者的疑似播散性根霉感染病例,包括转移性肾上腺皮质癌的泥浴。他接受了脂质体两性霉素B的经验性治疗,但在多器官衰竭后选择停止治疗。病人在入院的第十天去世。
    Mucormycosis is a frequently lethal fungal infection that most commonly affects patients with poorly controlled diabetes or other immunosuppressed states. We report the case of a suspected disseminated Rhizopus infection in a patient who was pursuing naturopathic treatment including mud baths for metastatic adrenocortical carcinoma. He was empirically treated with liposomal amphotericin B but opted to stop treatment following multiorgan failure. The patient passed away on the tenth day of his hospital admission.
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  • 文章类型: Case Reports
    控制不佳的糖尿病患者的毛霉菌病手感染表现为快速进行性肿胀,发红,疼痛,和对抗生素无反应的坏死。及时诊断和积极手术,抗真菌药,糖尿病管理至关重要,强调需要早期识别和治疗糖尿病患者的毛霉菌病。
    Mucormycosis hand infection in poorly controlled diabetic presented as rapidly progressive swelling, redness, pain, and necrosis unresponsive to antibiotics. Prompt diagnosis and aggressive surgery, antifungals, and diabetes management were critical, highlighting the need for early recognition and treatment of mucormycosis in diabetics.
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  • 文章类型: Case Reports
    小儿年龄组的腹部肿块与体重减轻有关,可以增加头发,尤其是恶性肿瘤是有区别的.我们介绍了一名青春期早期男性的病例,该男性表现出腹痛,并被发现有模仿恶性肿瘤的肿块。切除的手术标本显示空肠细菌病,他在手术和辅助伊曲康唑后完全康复。在这些病例中,真菌病因的诊断需要高度怀疑和对危险因素的背景知识。疾病发生和呈现方式。如果及时诊断和治疗,胃肠道虫卵真菌病具有令人印象深刻的治愈潜力。
    Abdominal masses clubbed with weight loss in the paediatric age group can raise hairs, especially since malignancy is a differential. We present the case of an early adolescent male who presented with abdominal pain and was found to have a mass mimicking a malignancy. The resected surgical specimen revealed entomophthoromycosis of the jejunum and he made a complete recovery following surgery and adjuvant itraconazole. The diagnosis of a fungal aetiology in these cases requires a high index of suspicion and background knowledge of the risk factors, disease occurrence and mode of presentation. Gastrointestinal entomophthoromycosis has an impressive potential for cure if promptly diagnosed and treated.
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  • 文章类型: Case Reports
    肠真菌病构成了一组皮下真菌病,包括分生孢子菌病(鼻面形式)和基底细菌菌病(涉及躯干和四肢的皮下形式)。分生孢子菌病的特点是进行性鼻和面部畸形,在进化的形式中,“河马鼻子”。文献回顾发现了一百个案例,对潮湿的热带地区有吸引力。方法。我们报道了一名25岁患者的观察结果,生活在赤道地带,在加蓬南部潮湿的森林地区,面部肿胀,主要累及眼睑,鼻子和上唇。
    虫卵真菌病的诊断与组织病理学和临床方面一致。在伊曲康唑300mg/天持续2个月和皮质类固醇治疗下,面部美学方面的发展是有利的(甲基强的松240mg/天持续3天,以0.5mg/kg/天的剂量口服,即30毫克/天)泼尼松),维持3个月。手术无法完成平均鼻部改善,患者失去了随访。
    在同一省的加蓬对分生孢子病的第二次观察使Ngounié成为这种情感的特权生态系统。
    Entomophthoromycosis constitutes a nosological group of subcutaneous mycoses including conidiobolomycosis (rhinofacial form) and basidiobomomycosis (subcutaneous form involving the trunk and the limbs). Conidiobolomycosis is characterized by a progressive nasal and facial deformity giving, in the evolved forms, a \"hippopotamus snout\". The literature review finds a hundred cases, with a tropism for the humid tropical regions. Methods. We report the observation of a 25-year-old patient, living in the equatorial zone, in the south of Gabon in a humid forest area, presenting a swollen aspect of the face mainly involving the eyelids, the nose and the upper lips.
    The diagnosis of entomophthoromycosis was compatible with the histopathological and clinical aspects. The evolution was favorable in terms of facial aesthetics under itraconazole 300 mg/day for 2 months and corticosteroid therapy (bolus of methylprednisone 240 mg/day for 3 days relayed per os at a dose of 0.5 mg/kg/day, i.e. 30 mg/day) of prednisone), maintained for 3 months. The average nasal improvement could not be completed by surgery and the patient was lost to follow-up.
    This second observation of conidiobolomycosis in Gabon in the same province makes Ngounié a privileged ecosystem for this affection.
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  • 文章类型: Journal Article
    毛霉菌病是一种罕见但致命的疾病,主要影响不受控制的糖尿病患者。糖尿病酮症酸中毒,实体和血液肿瘤,器官移植,长期服用类固醇,持续的中性粒细胞减少症,铁过载状态,新生儿早产,严重的营养不良,和艾滋病毒。在COVID-19大流行之后,最近世界各地报告了许多病例。最近的研究使人们对这种疾病的发病机理有了更好的了解,和全球指南现在可用来管理这种严重的感染。在这里,我们全面审查了病因,发病机制,临床表现,诊断,和毛霉菌病的管理。
    Mucormycosis is an infrequent but fatal illness that mainly affects patients with uncontrolled diabetes mellitus, diabetic ketoacidosis, solid and hematologic neoplasms, organ transplantation, chronic steroid intake, prolonged neutropenia, iron overload states, neonatal prematurity, severe malnutrition, and HIV. Many cases were reported across the world recently following the COVID-19 pandemic. Recent research has led to a better understanding of the pathogenesis of the disease, and global guidelines are now available for managing this serious infection. Herein, we comprehensively review the etiological agents, pathogenesis, clinical presentations, diagnosis, and management of mucormycosis.
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  • 文章类型: Review
    担子菌病是由担子菌属引起的罕见真菌感染。在有免疫能力的儿童中,它通常会引起皮肤感染,很少影响胃肠道,这种疾病的传播极为罕见。本研究报告了第一例由OmanensisBasidiobolusomanensis引起的播散性担子菌病,该儿童患有急性淋巴细胞白血病,尽管接受了L-AMB和伏立康唑的手术和抗真菌治疗,但由于不受控制的感染和多器官衰竭而死亡。文献回顾产生了76例,包括目前的病例,其中大部分报告为侵袭性胃肠道感染。平均年龄为4岁(61名男性和15名女性),这些儿童中的大多数来自中东(80%),特别是沙特阿拉伯(45%)。大多数患者接受全身抗真菌药物(主要是伊曲康唑和两性霉素B)治疗。这些患者中有25%进行了手术干预,死亡率为12%。
    Basidiobolomycosis is an uncommon fungal infection caused by the genus Basidiobolus. In immunocompetent children, it usually causes cutaneous infection and rarely affects the gastrointestinal tract, and it is extremely rare for the disease to spread. The present study reports the first case of disseminated basidiobolomycosis caused by Basidiobolus omanensis in a child with acute lymphoblastic leukemia who died as a result of uncontrolled infection and multi-organ failure despite surgical and antifungal therapy with L-AMB and voriconazole. A review of the literature yielded 76 cases, including the current case with the majority of which were reported as invasive gastrointestinal infection. The median age was 4 years (61 male and 15 female) and the majority of these children were from the Middle East (80%), specifically Saudi Arabia (45%). Most patients were treated with systemic antifungal agents (mostly itraconazole and amphotericin B). Surgical intervention was done in 25% of these patients and the death rate was 12%.
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