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Penicillium marneffei

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https://www.readbyqxmd.com/read/28906280/both-coinfections-of-penicillium-marneffei-and-cryptococcus-neoformans-in-aids-patient-a-report-of-rare-case
#1
Yu-Ye Li, Ummair Saeed, Sha-Sha Wei, Li Wang, Yi-Qun Kuang
No abstract text is available yet for this article.
September 24, 2017: AIDS
https://www.readbyqxmd.com/read/28884011/adaptation-to-macrophage-killing-by-talaromyces-marneffei
#2
REVIEW
Monsicha Pongpom, Pramote Vanittanakom, Panjaphorn Nimmanee, Chester R Cooper, Nongnuch Vanittanakom
Talaromyces (Penicillium) marneffei is an important opportunistic fungal pathogen. It causes disseminated infection in immunocompromised patients especially in Southeast Asian countries. The pathogenicity of T. marneffei depends on the ability of the fungus to survive the killing process and replicate inside the macrophage. Major stresses inside the phagosome of macrophages are heat, oxidative substances and nutrient deprivation. The coping strategies of this pathogen with these stresses are under investigation...
August 2017: Future Science OA
https://www.readbyqxmd.com/read/28831671/opportunistic-invasive-mycoses-in-aids-cryptococcosis-histoplasmosis-coccidiodomycosis-and-talaromycosis
#3
REVIEW
Daniel B Chastain, Andrés F Henao-Martínez, Carlos Franco-Paredes
PURPOSE OF REVIEW: The goal of this review is to provide an update on the epidemiology, diagnosis, and treatment of opportunistic fungal infections in patients with human immunodeficiency virus (HIV) infection including Cryptococcus spp., Histoplasma spp., Coccidioides spp., and Talaromyces marneffei, formerly Penicillium marneffei. RECENT FINDINGS: In many settings, despite increasing roll out of antiretroviral therapy (ART), opportunistic invasive mycoses produce a substantial burden of disease...
August 22, 2017: Current Infectious Disease Reports
https://www.readbyqxmd.com/read/28821221/acute-penicillium-marneffei-infection-stimulates-host-m1-m2a-macrophages-polarization-in-balb-c-mice
#4
Xiaoying Dai, Congzheng Mao, Xiuwan Lan, Huan Chen, Meihua Li, Jing Bai, Jingmin Deng, Qiuli Liang, Jianquan Zhang, Xiaoning Zhong, Yi Liang, Jiangtao Fan, Honglin Luo, Zhiyi He
BACKGROUND: Penicillium marneffei (P. marneffei) is a thermally dimorphic fungus pathogen that causes fatal infection. Alveolar macrophages are innate immune cells that have critical roles in protection against pulmonary fungal pathogens and the macrophage polarization state has the potential to be a deciding factor in disease progression or resolution. The aim of this study was to investigate mouse alveolar macrophage polarization states during P. marneffei infection. RESULTS: We used enzyme-linked immunosorbent (ELISA) assays, quantitative real-time PCR (qRT-PCR), and Griess, arginase activity to evaluate the phenotypic markers of alveolar macrophages from BALB/C mice infected with P...
August 18, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28774701/fungal-infections-in-hiv-aids
#5
REVIEW
Andrew H Limper, Antoine Adenis, Thuy Le, Thomas S Harrison
Fungi are major contributors to the opportunistic infections that affect patients with HIV/AIDS. Systemic infections are mainly with Pneumocystis jirovecii (pneumocystosis), Cryptococcus neoformans (cryptococcosis), Histoplasma capsulatum (histoplasmosis), and Talaromyces (Penicillium) marneffei (talaromycosis). The incidence of systemic fungal infections has decreased in people with HIV in high-income countries because of the widespread availability of antiretroviral drugs and early testing for HIV. However, in many areas with high HIV prevalence, patients present to care with advanced HIV infection and with a low CD4 cell count or re-present with persistent low CD4 cell counts because of poor adherence, resistance to antiretroviral drugs, or both...
July 31, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28719322/case-report-disseminated-talaromyces-penicillium-marneffei-and-mycobacterium-tuberculosis-coinfection-in-a-japanese-patient-with-acquired-immunodeficiency-syndrome
#6
Shuji Hatakeyama, Takeshi Yamashita, Toshiyasu Sakai, Katsuhiko Kamei
Talaromyces marneffei is a dimorphic fungus endemic mainly in southeast and south Asia. It causes severe mycosis, usually in immunocompromised individuals, such as those with human immunodeficiency virus (HIV) infection. Concomitant infection with T. marneffei and other opportunistic pathogens is plausible because the majority of T. marneffei infections occur in patients with advanced HIV infection. Nonetheless, coinfection in the same site has rarely been reported, and poses a considerable diagnostic and therapeutic challenge...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28702025/cellular-and-molecular-defects-underlying-invasive-fungal-infections-revelations-from-endemic-mycoses
#7
REVIEW
Pamela P Lee, Yu-Lung Lau
The global burden of fungal diseases has been increasing, as a result of the expanding number of susceptible individuals including people living with human immunodeficiency virus (HIV), hematopoietic stem cell or organ transplant recipients, patients with malignancies or immunological conditions receiving immunosuppressive treatment, premature neonates, and the elderly. Opportunistic fungal pathogens such as Aspergillus, Candida, Cryptococcus, Rhizopus, and Pneumocystis jiroveci are distributed worldwide and constitute the majority of invasive fungal infections (IFIs)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28182077/penicillium-marneffei-infection-in-a-hiv-positive-patient-a-comparison-of-bronchial-washing-cytology-and-biopsy
#8
Chu Hyun Hee, Chong Young Pil, Kyung Ja Cho
Penicilliosis is a disseminated and progressive infection that is mainly found in immunocompromised individuals, especially those with human immunodeficiency virus (HIV) infection. Because of the high mortality of patients with disseminated Penicillium marneffei infection, rapid diagnosis and early treatment are required. Diagnosis is traditionally made by biopsy and/or culture of blood or any involved organ. Cytology offers several advantages over biopsy, including more rapid diagnosis and greater resolution of cytomorphologic details of organisms, allowing rapid initiation of treatment...
January 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28130931/a-retrospective-analysis-of-seven-patients-with-acquired-immunodeficiency-syndrome-and-pharyngeal-and-or-laryngeal-talaromyces-marneffei-infection
#9
LETTER
Y Qiu, Y Tang, J Zhang, X Yi, X Zhong, G Liu, H Xu, Y Lei
No abstract text is available yet for this article.
October 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28111099/talaromyces-marneffei-mp1p-is-a-virulence-factor-that-binds-and-sequesters-a-key-proinflammatory-lipid-to-dampen-host-innate-immune-response
#10
Kong-Hung Sze, Wai-Hei Lam, Hongmin Zhang, Yi-Hong Ke, Man-Kit Tse, Patrick C Y Woo, Susanna K P Lau, Candy C Y Lau, Jian-Piao Cai, Edward T K Tung, Raymond K C Lo, Simin Xu, Richard Y T Kao, Quan Hao, Kwok-Yung Yuen
Talaromyces (Penicillium) marneffei is one of the leading causes of systemic mycosis in immunosuppressed or AIDS patients in Southeast Asia. How this intracellular pathogen evades the host immune defense remains unclear. We provide evidence that T. marneffei depletes levels of a key proinflammatory lipid mediator arachidonic acid (AA) to evade the host innate immune defense. Mechanistically, an abundant secretory mannoprotein Mp1p, shown previously to be a virulence factor, does so by binding AA with high affinity via a long hydrophobic central cavity found in the LBD2 domain...
January 16, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28108867/administration-of-voriconazole-in-disseminated-talaromyces-penicillium-marneffei-infection-a-retrospective-study
#11
Yanyin Ouyang, Shuangqi Cai, Hao Liang, Cunwei Cao
Talaromyces (Penicillium) marneffei infection is a fatal disseminated mycosis caused by the dimorphic fungus Talaromyces marneffei; the therapeutic strategies for this infectious disease are limited. The aim of this retrospective study was to evaluate the efficacy and safety of voriconazole for treating patients with disseminated T. marneffei infection with or without HIV infection in a clinical setting. Patients who intravenously received voriconazole (6 mg/kg q12 h for the first 24 h followed by 4 mg/kg q12 h) as the initial antifungal treatment were enrolled...
June 2017: Mycopathologia
https://www.readbyqxmd.com/read/28105364/disseminated-penicillium-marneffei-infection-recurrence-in-a-non-acquired-immune-deficiency-syndrome-patient-a-case-report
#12
Zhixue Zhang, Fangxu Tao, Yining Li, Yudong Xiao, Zhishu Zhang, Jun Liu
Penicillium marneffei is a rare deep tissue fungal infection causing an endemic in Southeast Asia. This infection causes penicilliosis disease and is more common in patients who are immunocompromised. To date, no cases of P. marneffei infection relapse following treatment have been reported. A 36-year-old patient attended our hospital as a result of intermittent fever, cough, shortness of breath and multiple soft lesions located on the face, arms, neck and trunk. The medical radiological examination of the lung revealed multiple patchy exudative shadows, thick-walled hollow inner part of the visible lesions, bilateral pleural and pericardial effusion...
December 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28104384/retrospective-analysis-of-15-cases-of-penicillium-marneffei-infection-in-hiv-positive-and-hiv-negative-patients
#13
REVIEW
Yinyin Li, Zhongyuan Lin, Xiang Shi, Lijun Mo, Wenchao Li, Wuning Mo, Zheng Yang
Penicillium marneffei (P. marneffei) causes systemic opportunistic infections in immunocompromised individuals, particularly in those infected with human immunodeficiency virus (HIV), and more rarely in HIV-negative patients. We retrospectively analyzed the cases of 15 patients infected with P. marneffei. The patients were divided into two groups: HIV-negative (n = 4) and HIV-positive (n = 11). Of the cases studied, three (75%) of the HIV-negative and six (55%) of the HIV-positive group had an accompanying lung infection...
April 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28011700/role-of-the-talaromyces-marneffei-penicillium-marneffei-saka-gene-in-nitrosative-stress-response-conidiation-and-red-pigment-production
#14
Panjaphorn Nimmanee, Emily W T Tam, Patrick C Y Woo, Pramote Vanittanakom, Nongnuch Vanittanakom
Stress-activated MAPK pathways are systems used to regulate the stress adaptation of most fungi. It has been shown that in Talaromyces marneffei (Penicillium marneffei), a pathogenic dimorphic fungus, the sakA gene is involved, not only in tolerance against oxidative and heat stresses, but also in playing a role in asexual development, yeast cell generation in vitro and survival inside macrophage cell lines. In this study, the role of the T. marneffei sakA gene on the nitrosative stress response and the regulation of gene expression were investigated...
April 1, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/27984058/enhancing-melting-curve-analysis-for-the-discrimination-of-loop-mediated-isothermal-amplification-products-from-four-pathogenic-molds-use-of-inorganic-pyrophosphatase-and-its-effect-in-reducing-the-variance-in-melting-temperature-values
#15
Kazuya Tone, Ryuichi Fujisaki, Takashi Yamazaki, Koichi Makimura
Loop-mediated isothermal amplification (LAMP) is widely used for differentiating causative agents in infectious diseases. Melting curve analysis (MCA) in conjunction with the LAMP method reduces both the labor required to conduct an assay and contamination of the products. However, two factors influence the melting temperature (Tm) of LAMP products: an inconsistent concentration of Mg(2+) ion due to the precipitation of Mg2P2O7, and the guanine-cytosine (GC) content of the starting dumbbell-like structure. In this study, we investigated the influence of inorganic pyrophosphatase (PPase), an enzyme that inhibits the production of Mg2P2O7, on the Tm of LAMP products, and examined the correlation between the above factors and the Tm value using MCA...
January 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27817782/-recurrent-fever-hepatosplenomegaly-and-eosinophilia-in-a-boy
#16
Dan Liu, Li-Li Zhong, Yun Li, Min Chen
A 2-year-old boy was admitted into the hospital because of cough and fever. Lymph node tuberculosis was noted when he was 2 months old and he was subsequently hospitalized several times because of cough and fever. After hospitalization the laboratory examination showed an increased eosinophia level in blood. The immune function tests shows decreased levels of IgG, IgA, and IgM. The patient had no response to anti-tuberculosis, anti-bacterial, and anti-fungal treatment, resulting in recurrent fever and progressive enlargement of the liver and spleen...
November 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27787346/association-of-hiv-and-opportunistic-infections-with-incident-stroke-a-nationwide-population-based-cohort-study-in-taiwan
#17
Yung-Feng Yen, Marcelo Chen, Ian Jen, Yu-Ching Lan, Pei-Hung Chuang, Yen-Ling Liu, Yun Lee, Yi-Ming Arthur Chen
BACKGROUND: HIV-associated vasculopathy and opportunistic infections (OIs) might cause vascular atherosclerosis and aneurysmal arteriopathy, which could increase the risk of incident stroke. However, few longitudinal studies have investigated the link between HIV and incident stroke. This cohort study evaluated the association of HIV and OIs with incident stroke. METHODS: We identified adults with HIV infection in 2000-2012, using the Taiwan National Health Insurance Research Database...
February 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/27706212/the-yapa-encodes-bzip-transcription-factor-involved-in-stress-tolerance-in-pathogenic-fungus-talaromyces-marneffei
#18
Wiyada Dankai, Monsicha Pongpom, Sirida Youngchim, Chester R Cooper, Nongnuch Vanittanakom
Talaromyces marneffei, formerly Penicillium marneffei, is a thermally dimorphic fungus. It causes a fatal disseminated disease in patients infected with the human immunodeficiency virus (HIV). Studies on the stress defense mechanism of T. marneffei can lead to a better understanding of the pathogenicity and the progression of the disease due to this fungus. The basic leucine-zipper (bZip) transcription factor gene in Saccharomyces cerevisiae, named yap1 (yeast activating protein-1), is known as a crucial central regulator of stress responses including those caused by oxidative agents, cadmium, and drugs...
2016: PloS One
https://www.readbyqxmd.com/read/27580558/penicillium-marneffei-infection-with-%C3%AE-d-glucan-elevation-a-case-report-and-literature-review
#19
Yukihiro Yoshimura, Yohei Sakamoto, Kwangyeol Lee, Yuichiro Amano, Natsuo Tachikawa
We herein report a case of Penicillium marneffei infection (PMI) in a Japanese man who was infected with human immunodeficiency virus-1 (HIV-1), who was diagnosed on the basis of a bone marrow culture and who was effectively treated with itraconazole. Our review of the PMI cases reported in Japan suggests that increased serum (1→3)-β-D-glucan levels are a useful diagnostic tool in cases of suspected PMI.
2016: Internal Medicine
https://www.readbyqxmd.com/read/27560160/mp1p-is-a-virulence-factor-in-talaromyces-penicillium-marneffei
#20
Patrick C Y Woo, Susanna K P Lau, Candy C Y Lau, Edward T K Tung, Ken T K Chong, Fengjuan Yang, Hongmin Zhang, Raymond K C Lo, Jian-Pao Cai, Rex K H Au-Yeung, Wing-Fung Ng, Herman Tse, Samson S Y Wong, Simin Xu, Wai Hei Lam, Man-Kit Tse, Kong Hung Sze, Richard Y Kao, Neil E Reiner, Quan Hao, Kwok-Yung Yuen
BACKGROUND: Talaromyces 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. METHODOLOGY/PRINCIPAL FINDINGS: We examined the pathogenic roles of Mp1p and its homologs in a mouse model. All mice died 21 and 30 days after challenge with wild-type T...
August 2016: PLoS Neglected Tropical Diseases
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