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https://www.readbyqxmd.com/read/28634719/a-sugarcane-pathogenesis-related-protein-scpr10-plays-a-positive-role-in-defense-responses-under-sporisorium-scitamineum-srmv-sa-and-meja-stresses
#1
Qiong Peng, Yachun Su, Hui Ling, Waqar Ahmad, Shiwu Gao, Jinlong Guo, Youxiong Que, Liping Xu
A pathogenesis-related gene, ScPR10 , was isolated from sugarcane and its bio-function was characterized, demonstrating that ScPR10 was involved in plant defense responses to Sporisorium scitamineum , SrMV, SA, and MeJA stresses. Plant fungal and viral diseases are the major concerns in sugarcane industry. Many anti-fungal and antivirus components, including pathogenesis-related (PR) proteins, have been identified. The pathogenesis-related protein 10 (PR10) is the dominant group in PR families, involved in the plant defense mechanism...
June 20, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28631214/identification-of-bufadienolides-from-the-boreal-toad-anaxyrus-boreas-active-against-a-fungal-pathogen
#2
Kelly Barnhart, Megan E Forman, Thomas P Umile, Jordan Kueneman, Valerie McKenzie, Irene Salinas, Kevin P C Minbiole, Douglas C Woodhams
Amphibian granular glands provide a wide range of compounds on the skin that defend against pathogens and predators. We identified three bufadienolides-the steroid-like compounds arenobufagin, gamabufotalin, and telocinobufagin-from the boreal toad, Anaxyrus boreas, through liquid chromatography mass spectrometry (LC/MS). Compounds were detected both after inducing skin gland secretions and in constitutive mucosal rinses from toads. We described the antimicrobial properties of each bufadienolide against Batrachochytrium dendrobatidis (Bd), an amphibian fungal pathogen linked with boreal toad population declines...
June 19, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28610976/dioscin-suppresses-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-and-suppresses-a549-lung-cancer-migration-and-invasion
#3
Won-Chul Lim, Hyunhee Kim, Young-Joo Kim, Kyung-Chul Choi, In Ho Lee, Ki Heon Lee, Mi Kyung Kim, Hyeonseok Ko
Epithelial-to-mesenchymal transition (EMT), an important cellular process, occurs during cancer development and progression, has a crucial role in metastasis by enhancing the motility of tumor cells. Dioscin is a polyphenolic component isolated from Phyllanthus amarus, which exhibits a wide range of pharmacological and physiological activities, such as anti-tumor, anti-inflammatory, anti-obesity, anti-fungal, and anti-viral activities. However, the possible role of dioscin in the EMT is unclear. We investigated the suppressive effect of dioscin on the EMT...
June 3, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28608807/amphotericin-b-an-anti-fungal-medication-directly-increases-the-cytotoxicity-of-nk-cells
#4
Nayoung Kim, Ji-Wan Choi, Hye-Ran Park, Inki Kim, Hun Sik Kim
Immunomodulatory drugs (IMiDs) present one example of immunomodulatory agents that improve cancer immunotherapy. Based on the cytotoxic activity of natural killer (NK) cells against cancer cells, a high throughput screening method for the identification of novel immunomodulatory molecules with the potential to stimulate NK cell cytotoxicity against cancer cells was designed and tested using an approved drug library. Among the primary hit compounds, the anti-fungal drug amphotericin B (AMP-B) increased the cytotoxicity of NK cell line and human primary NK cells in a direct manner...
June 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28604330/infection-and-tissue-repair-of-experimental-cutaneous-candidiasis-in-diabetic-mice
#5
Andréia Carla Eugenio Pupim, Tacito Graminha Campois, Eduardo José de Almeida Araújo, Terezinha Inez Estivalet Svidizinski, Ionice Felipe
PURPOSE: Diabetic patients seem to be predisposed to cutaneous candidiasis. In this study, we evaluated the interference of diabetic conditions in alloxan-induced diabetic mice in relation to the development of C. albicans infection, density of M1 and M2 macrophages, distribution of collagen type I and III and anti-inflamamatory cytokines involved in tissue repair. METHODOLOGY: The mice were treated with intravenous alloxan, and all animals with blood glucose levels >250  mg dl-1 were inoculate with C...
June 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28603117/anti-microbial-screening-and-cytotoxic-activity-of-aerial-part-of-thymelaea-hirsuta-l-essential-oil-growing-in-south-west-tunisia
#6
Samir Felhi, Mouna Chaaibia, Sana Bakari, Riadh Ben Mansour, Ahmed Békir, Néji Gharsallah, Adel Kadri
This study aimed to investigate the antimicrobial and cytotoxic activities of essential oil isolated by the hydro-distillation of aerial parts of Thymelaea hirsuta. The antimicrobial activity of the oil was evaluated against eight bacterial and three fungal pathogenic strains. The results revealed that the essential oil exhibited a moderate-to-potent anti-microbial activity against all the microorganisms tested. Gram-positive bacteria were noted to be more sensitive to the oil than gram-negative bacteria and yeasts...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28603107/anti-fungal-and-anti-mycobacterial-activity-of-plants-of-nuevo-leon-mexico
#7
Blanca Alicia Alanis Garza, Joel López Arroyo, Gloria González González, Elvira Garza González, Elvira Garza González, Noemí Waksman de Torres, Ricardo Salazar Aranda
Severe fungal infections, particularly those caused by Candida spp, have increased in recent decades and are associated with an extremely high rate of morbidity and mortality. Since plants are an important source of potentially bioactive compounds, in this work the antifungal activity of the methanol extracts of 10 plants (Acacia rigidula, Buddleja cordata, Cephalanthus occidentalis, Juglans nigra, Parkinsonia aculeata, Parthenium hysterophorus, Quercus canbyi, Ricinus communis, Salvia coccinea and Teucrium bicolor) were evaluated...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28602386/respiratory-infections-associated-with-anti-tnf%C3%AE-agents
#8
REVIEW
E Blanchard, M-E Truchetet, I Machelart, J Séneschal, C Raherison-Semjen
Anti-TNFα agents have proved effective in the treatment of various inflammatory, rheumatologic, dermatologic, and gastrointestinal diseases. Severe respiratory tract infections of bacterial or fungal origin have emerged as important complications in patients receiving such treatments. The risk of infection due to anti-TNFα therapy is difficult to assess in these patients who are immunocompromised because of the underlying disease itself and of previous or concomitant immunosuppressive drugs. This excessive infection risk seems real, particularly in the first six months following treatment initiation, and higher for patients receiving anti-TNFα monoclonal antibodies than for those receiving soluble TNFα receptor...
June 8, 2017: Médecine et Maladies Infectieuses
https://www.readbyqxmd.com/read/28601633/leptomycin-b-attenuates-neuronal-death-via-pka-and-pp2b-mediated-erk1-2-activation-in-the-rat-hippocampus-following-status-epilepticus
#9
Su-Ji Min, Hye-Won Hyun, Tae-Cheon Kang
Leptomycin B (LMB), originally developed as an anti-fungal agent, has potent neuroprotective properties against status epilepticus (SE, a prolonged seizure activity). However, the pharmacological profiles and mechanisms of LMB for neuroprotection remain elusive. In the present study, we found that LMB increased phosphorylation levels of protein kinase A (PKA) catalytic subunits, protein phosphatase 2B (PP2B, calcineurin) and extracellular signal-regulated kinase 1/2 (ERK1/2) under normal condition, and abolished SE-induced neuronal death...
June 7, 2017: Brain Research
https://www.readbyqxmd.com/read/28600810/infections-from-7-clinical-trials-of-ixekizumab-an-anti-interleukin-17a-monoclonal-antibody-in-patients-with-moderate-to-severe-psoriasis
#10
K A Papp, H Bachelez, A Blauvelt, K L Winthrop, R Romiti, M Ohtsuki, N Acharya, D K Braun, L Mallbris, F Zhao, W Xu, C D Walls, B Strober
BACKGROUND: Infections are associated with biologic therapies in psoriasis. OBJECTIVES: To summarise the incidence of infections in moderate-to-severe psoriasis patients treated with ixekizumab, an anti-interleukin (IL)-17A monoclonal antibody. METHODS: Infections are summarised from an integrated database of 7 controlled and uncontrolled ixekizumab psoriasis trials. Data are presented from placebo-controlled induction (Weeks 0-12; UNCOVER-1, -2, and -3) and maintenance periods (Weeks 12-60; UNCOVER-1 and -2) as well as all ixekizumab-exposed patients pooled from all 7 trials...
June 10, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28584988/methodology-for-anti-cryptococcal-vaccine-development
#11
Ashok K Chaturvedi, Floyd L Wormley
Cryptococcus neoformans and Cryptococcus gattii, the predominant etiological agents of cryptococcosis, are fungal pathogens that cause disease ranging from a mild pneumonia to life-threatening infections of the central nervous system (CNS). C. neoformans is widely considered an opportunistic fungal pathogen which targets individuals with impaired immune systems, while C. gattii is predominantly associated with fungal infections in immunocompetent individuals. However, C. neoformans and C. gattii have certainly been identified as the causative agent of cryptococcosis in both immune compromised and immune competent individuals...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28583797/penicillospirone-from-a-marine-isolate-of-penicillium-sp-sf-5292-with-anti-inflammatory-activity
#12
Seungjun Lee, Dong-Cheol Kim, Jin-Soo Park, Jae-Young Son, Jae Hak Sohn, Ling Liu, Yongsheng Che, Hyuncheol Oh
Chemical investigation of the EtOAc extract of a marine-derived fungal isolate Penicillium sp. SF-5292 yielded a new polyketide-type metabolite, penicillospirone (1). The structure of 1 was determined by analysis of spectroscopic data such as 1D and 2D NMR spectra and MS data, and the final structure including absolute configuration was unambiguously established by single-crystal X-ray diffraction analysis. In the evaluation of its anti-inflammatory effects, 1 inhibited the overproduction of nitric oxide (NO) and prostaglandin E2 (PGE2) in lipopolysaccharide (LPS)-stimulated RAW264...
May 23, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28580148/post-tuberculosis-mycetoma-bronchoscopic-removal
#13
Liam J Chawke, Eoin B Hunt, Marcus P Kennedy, Desmond M Murphy
A 76-year-old male non-smoker presented to our institution with cough and haemoptysis. He had been treated for cavitatory pulmonary Mycobacterium tuberculosis of the right upper lobe 10 years previously. Chest radiograph and subsequent computed tomography (CT) of the chest demonstrated a right upper cavity containing a mass suspicious for mycetoma. Flexible bronchoscopy under conscious sedation demonstrated a mass obstructing the anterior segment of the right upper lobe. The abnormality was subsequently removed using a flexible endobronchial cryoprobe...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28579986/hiv-aspartic-peptidase-inhibitors-modulate-surface-molecules-and-enzyme-activities-involved-with-physiopathological-events-in-fonsecaea-pedrosoi
#14
Vanila F Palmeira, Daniela S Alviano, Lys A Braga-Silva, Fátima R V Goulart, Marcela Q Granato, Sonia Rozental, Celuta S Alviano, André L S Santos, Lucimar F Kneipp
Fonsecaea pedrosoi is the main etiological agent of chromoblastomycosis, a recalcitrant disease that is extremely difficult to treat. Therefore, new chemotherapeutics to combat this fungal infection are urgently needed. Although aspartic peptidase inhibitors (PIs) currently used in the treatment of human immunodeficiency virus (HIV) have shown anti-F. pedrosoi activity their exact mechanisms of action have not been elucidated. In the present study, we have investigated the effects of four HIV-PIs on crucial virulence attributes expressed by F...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28577308/empirical-antibiotics-targeting-gram-positive-bacteria-for-the-treatment-of-febrile-neutropenic-patients-with-cancer
#15
REVIEW
Ofrat Beyar-Katz, Yaakov Dickstein, Sara Borok, Liat Vidal, Leonard Leibovici, Mical Paul
BACKGROUND: The pattern of infections among neutropenic patients with cancer has shifted in the last decades to a predominance of gram-positive infections. Some of these gram-positive bacteria are increasingly resistant to beta-lactams and necessitate specific antibiotic treatment. OBJECTIVES: To assess the effectiveness of empirical anti-gram-positive (antiGP) antibiotic treatment for febrile neutropenic patients with cancer in terms of mortality and treatment failure...
June 3, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28572995/assessing-the-anti-fungal-efficiency-of-filters-coated-with-zinc-oxide-nanoparticles
#16
Stephen Decelis, Davide Sardella, Thomas Triganza, Jean-Pierre Brincat, Ruben Gatt, Vasilis P Valdramidis
Air filters support fungal growth, leading to generation of conidia and volatile organic compounds, causing allergies, infections and food spoilage. Filters that inhibit fungi are therefore necessary. Zinc oxide (ZnO) nanoparticles have anti-fungal properties and therefore are good candidates for inhibiting growth. Two concentrations (0.012 M and 0.12 M) were used to coat two types of filters (melt-blown and needle-punched) for three different periods (0.5, 5 and 50 min). Rhizopus stolonifer and Penicillium expansum isolated from spoiled pears were used as test organisms...
May 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28561849/symbiosis-inspired-approaches-to-antibiotic-discovery
#17
REVIEW
Navid Adnani, Scott R Rajski, Tim S Bugni
Covering: 2010 up to 2017Life on Earth is characterized by a remarkable abundance of symbiotic and highly refined relationships among life forms. Defined as any kind of close, long-term association between two organisms, symbioses can be mutualistic, commensalistic or parasitic. Historically speaking, selective pressures have shaped symbioses in which one organism (typically a bacterium or fungus) generates bioactive small molecules that impact the host (and possibly other symbionts); the symbiosis is driven fundamentally by the genetic machineries available to the small molecule producer...
May 31, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28560172/a-case-of-osteomyelitis-of-the-toe-caused-by-coccidioidomycosis-in-a-17-year-old-with-diabetes-insipidus
#18
Ahmer Khalid, Daniel J Boken, Christine A Nelson, Vicken Y Totten
We report a case of a 17-year-old male who presented with pain in his right first toe. His pain and swelling had worsened and x-rays of his foot revealed erosive changes of the great toe distal phalanx suggesting possible osteomyelitis. His co-morbidities were morbid obesity and diabetes insipidus. He was admitted to the hospital, blood cultures were drawn, and he was started on vancomycin for presumed bacterial osteomyelitis. He underwent incision and drainage of the fluctuant abscess of the toe, where a culture of the wound was taken...
2017: IDCases
https://www.readbyqxmd.com/read/28559266/an-immunomodulatory-peptide-that-confers-protection-in-an-experimental-candidemia-murine-model
#19
Camila G Freitas, Stella M F Lima, Mirna S Freire, Ana Paula C Cantuária, Nelson G O Júnior, Tatiane S Santos, Jéssica S Folha, Suzana M Ribeiro, Simoni C Dias, Taia M B Rezende, Patrícia Albuquerque, André M Nicola, César de la Fuente-Núñez, Robert E W Hancock, Octávio L Franco, Maria Sueli S Felipe
Fungal Candida species are commensals present in the mammalian skin and mucous membranes. Candida spp. are capable of breaching the epithelial barrier of immuno-compromised patients with neutrophil and cell-mediated immune dysfunctions, and it can also disseminate to multiple organs through the bloodstream. Here we examined the action of innate defence regulator (IDR)-1018, a 12-aminoacid residue peptide derived from bovine bactenecin (Bac2A), showed weak antifungal and anti-biofilm activity against C. albicans laboratory (ATCC 10231) and a clinical isolate (CI) strains (MICs of 32 μg...
May 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28558705/disseminated-cryptococcosis-with-recurrent-multiple-abscesses-in-an-immunocompetent-patient-a-case-report-and-literature-review
#20
Qiaoling Ruan, Yimin Zhu, Shu Chen, Liping Zhu, Shu Zhang, Wenhong Zhang
BACKGROUND: Cryptococcus neoformans is frequently present as an opportunistic pathogen mainly affecting immunocompromised populations. Disseminated C. neoformans infection in immunocompetent population is rare and usually involves lung and central nerve system. Cryptococcus from biologic samples can easily grow on routine fungal and bacterial culture media. Besides, cryptococcal latex agglutination test has been established as a reliable diagnostic tool with overall sensitivities of 93-100%...
May 30, 2017: BMC Infectious Diseases
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