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https://www.readbyqxmd.com/read/28531554/efficacy-of-bacillus-subtilis-and-bacillus-amyloliquefaciens-in-the-control-of-aspergillus-parasiticus-growth-and-aflatoxins-production-on-pistachio
#1
Fatemeh Siahmoshteh, Ilenia Siciliano, Houda Banani, Zohreh Hamidi-Esfahani, Mehdi Razzaghi-Abyaneh, Maria Lodovica Gullino, Davide Spadaro
Pistachio (Pistacia vera) is an important nut for its economic, nutritional and health aspects but it can be contaminated by aflatoxigenic fungi in the field and during storage. Biological control could be considered as an alternative to chemical treatment. In this study, we evaluated the antifungal and anti-mycotoxigenic capability of two Bacillus spp. both in vitro and on pistachio kernels. In in vitro conditions, both strains were able to reduce the mycelial growth and they were able to degrade the four aflatoxins during the first three days after inoculation...
May 15, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28530189/marinobacter-lipolyticus-from-red-sea-for-lipase-production-and-modulation-of-silver-nanomaterials-for-anti-candidal-activities
#2
Mohammad Oves, Huda A Qari, Nadeen M Felemban, Mohammad Z Khan, Zulfiqar A Rehan, Iqbal M I Ismail
In this study, the bacterial strain CEES 33 was isolated from the coastal area of the Red Sea, Jeddah, Kingdom of Saudi Arabia. The bacterium isolate was identified and characterized by using biochemical and molecular methods. The isolate CEES 33 has been identified as Gram-negative rod shaped and cream pigmented spherical colonies. It also demonstrated a positive result for nitrate reduction, oxidase, catalase, citrate utilization, lipase and exopolysaccharide production. Strain CEES 33 was characterized at the molecular level by partial 16S rRNA sequencing and it has been identified as Marinobacter lipolyticus (EMBL|LN835275...
June 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28526091/a-pre-therapeutic-coating-for-medical-devices-that-prevents-the-attachment-of-candida-albicans
#3
Diego Vargas-Blanco, Aung Lynn, Jonah Rosch, Rony Noreldin, Anthony Salerni, Christopher Lambert, Reeta P Rao
BACKGROUND: Hospital acquired fungal infections are defined as "never events"-medical errors that should never have happened. Systemic Candida albicans infections results in 30-50% mortality rates. Typically, adhesion to abiotic medical devices and implants initiates such infections. Efficient adhesion initiates formation of aggressive biofilms that are difficult to treat. Therefore, inhibitors of adhesion are important for drug development and likely to have a broad spectrum efficacy against many fungal pathogens...
May 19, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28521529/potential-of-novel-drug-delivery-systems-in-the-management-of-topical-candidiasis
#4
Mahima Mathur, Kusum Devi Vemula
High prevalence of topical fungal infections is perceived in majority of nations worldwide accounting for numerous serious systemic complications. Of several fungal infections, candidiasis is one of the widespread infections which is manifested due to localization and proliferation of fungi. Present pharmacotherapy offers an effective treatment but possesses serious limitations like inadequate solubility, ineffectiveness in lowering diseased condition and patient incompliance. Several attempts to overcome these shortcomings and building suitable technology platforms for development of appropriate dosage forms which can enhance effectiveness, patient acceptability while maintaining safety, efficacy and affordability of drug delivery, have been made...
May 18, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28516246/aspergillus-species-in-bronchiectasis-challenges-in-the-cystic-fibrosis-and-non-cystic-fibrosis-airways
#5
REVIEW
Sanjay H Chotirmall, Maria Teresa Martin-Gomez
Bronchiectasis is a chronic irreversible airway abnormality associated with infectious agents that either cause or superinfect the airways. While the role of bacteria is well studied, much remains to be determined about fungi in both cystic fibrosis- and non-cystic fibrosis-related bronchiectasis. The airway is constantly exposed to inhaled ambient moulds of which Aspergillus represent the most ubiquitous. In a normal healthy host, this situation is of little consequence. The presence of anatomical or immunological abnormalities such as those in bronchiectasis leads to a range of fungal-related pathologies from asymptomatic airway colonization to fungal sensitization, allergic bronchopulmonary aspergillosis or chronic pulmonary aspergillosis...
May 17, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28516039/a-plane-screw-fixation-is-a-nidus-for-paecilomyces-sinusitis-in-a-patient-with-aspirin-exacerbated-respiratory-disease
#6
Anthony M Szema, Cyrus Jo
Titanium plane screw fixation of the frontal sinus is an approach used by otolaryngologists to obliterate this space in an attempt to reduce sinus infections. In this case, however, the titanium used became a nidus of infection which cultured the fungus Paecilomyces. The patient also had a hypersensitivity reaction to mold with positive skin tests and IgE, as well as eosinophilic esophagitis. Treatment entailed anti-fungals, anti-IgE, and fungal immunotherapy to multiple fungal antigens prevalent to the geographic region...
2017: IDCases
https://www.readbyqxmd.com/read/28513812/common-dermatophytes-and-in-vitro-anti-fungal-susceptibility-testing-in-patients-attending-the-dermatological-clinic-at-the-hospital-for-tropical-medicine-bangkok
#7
Watcharamat Muangkaew, Thanwa Wongsuk, Natthanej Luplertlop
Dermatophytes comprising the genera Trichophyton, Microsporum, and Epidermophyton are important causes of superficial mycoses. The number of infected patients and the distribution of species of these organisms in our hospital were unknown. We therefore aimed to investigate the clinical pattern of dermatophyte infections and to identify the species of these dermatophytes at the Dermatological Clinic of the Hospital for Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok in a 1-year period...
May 17, 2017: New Microbiologica
https://www.readbyqxmd.com/read/28512713/matairesinol-suppresses-neuroinflammation-and-migration-associated-with-src-and-erk1-2-nf-%C3%AE%C2%BAb-pathway-in-activating-bv2-microglia
#8
Peng Xu, Meng-Wei Huang, Chen-Xi Xiao, Fen Long, Ying Wang, Si-Yu Liu, Wan-Wan Jia, Wei-Jun Wu, Di Yang, Jin-Feng Hu, Xin-Hua Liu, Yi-Zhun Zhu
Chronic neuroinflammation is a pathological feature of neurodegenerative diseases. Inhibition of microglia-mediated neuroinflammation might be a potential strategy for neurodegeneration. Matairesinol, a dibenzylbutyrolactone plant lignan, presents in a wide variety of foodstuffs. It has been found to possess anti-angiogenic, anti-oxidative, anti-cancer and anti-fungal activities. In the present study, we investigated the anti-neuroinflammation effects of matairesinol on lipopolysaccharide (LPS)-induced BV2 microglia cells and the related molecular mechanisms...
May 17, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28512505/chronic-invasive-fungal-sinusitis-presenting-as-inferior-altitudinal-visual-field-defect
#9
Reema Bansal, Aastha Takkar, Vivek Lal, Amanjit Bal, Sandeep Bansal
A young male with acute blurring of vision (6/9) complained of an inferior altitudinal field defect in right eye. Clinical ophthalmological examination was normal. Magnetic resonance imaging (MRI) of the brain revealed the expansion and mucosal thickening of right posterior ethmoid and sphenoid sinuses and opacified right maxillary sinus. Surgical intervention (transethmoidal sphenoidotomy) and histopathological examination revealed chronic invasive granulomatous fungal sinusitis. Anti-fungal therapy led to resolution of visual complaints and restoration of visual field defects...
June 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28510196/anti-fungal-activity-mechanism-studies-on-%C3%AE-phellandrene-and-nonanal-against-penicillium-cyclopium
#10
Ji-Hong Zhang, He-Long Sun, Shao-Yang Chen, Li Zeng, Tao-Tao Wang
BACKGROUND: Essential oils from plants have been reported to have wide spread antimicrobial activity against various bacterial and fungal pathogens, and these include α-Phellandrene, Nonanal and other volatile substances. However, biological activities of α-Phellandrene and Nonanal have been reported only in a few publications. Further investigations are necessary to determine the antimicrobial activity of these compounds, especially for individual application, to establish the possible mechanism of action of the most active compound...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28506688/human-immunodeficiency-virus-and-fungal-infections
#11
REVIEW
Jeannette Guarner
The discovery of HIV was largely due to the presence of Pneumocystis pneumonia (PCP) in young patients that did not have the usual known causes of immune deficiencies in the early 1980s. Currently, treatment with highly active anti-retroviral therapy (HAART) and the use of prophylaxis for PCP have lowered the frequency of fungal infections; however, these infections continue to cause morbidity and mortality in those patients that fall out or are not in care. The frequency of specific fungal diseases in HIV patients will depend on the prevalence of fungi in the particular geographic location...
April 8, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28504466/nepetoidin-b-a-natural-product-inhibits-lps-stimulated-nitric-oxide-production-via-modulation-of-inos-mediated-by-nf-%C3%AE%C2%BAb-mkp-5-pathways
#12
Xiaxia Wu, Hongwei Gao, Wen Sun, Jie Yu, Hao Hu, Qiongming Xu, Xiuping Chen
Previous reports showed that nepetoidin B (NTB), a natural product isolated from many herbs, has anti-fungal and anti-bacterial effects. In this study, the antiinflammatory effect of NTB was investigated in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. The cytotoxic effect of NTB and LPS was determined by MTT assay. The nitric oxide (NO) production was detected by Griess assay. The TNF-α and IL-6 levels were determined by enzyme-linked immunosorbent assay kits. Protein expressions were tested by western blotting...
May 15, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28503354/mechanism-of-the-p450-catalyzed-oxidative-cyclization-in-the-biosynthesis-of-griseofulvin
#13
Jessica M Grandner, Ralph A Cacho, Yi Tang, K N Houk
Griseofulvin is an anti-fungal agent which has recently been determined to have potential anti-viral and anti-cancer applications. The role of specific enzymes involved in the biosynthesis of this natural product has previously been determined, but the mechanism by which a p450, GsfF, catalyzes the key oxidative cyclization of griseophenone B remains unknown. Using density functional theory (DFT), we have determined the mechanism of this oxidation that forms the oxa-spiro core of griseofulvin. Computations show GsfF preferentially performs two sequential phenolic O-H abstractions rather than epoxidation to form an arene oxide intermediate...
July 1, 2016: ACS Catalysis
https://www.readbyqxmd.com/read/28502945/sporotrichal-tenosynovitis-diagnosed-helpfully-by-musculoskeletal-ultrasonography
#14
Takashi Shimizu, Shosuke Akita, Yoshinori Harada, Eri Oguro, Yasutaka Okita, Minoru Shigesaka, Hidetoshi Matsuoka, Takuro Nii, Satoru Teshigawara, Eriko Kudo-Tanaka, Soichiro Tsuji, Masato Matsushita, Shiro Ohshima, Yoshihiko Hoshida, Jun Hashimoto, Yukihiko Saeki
A 72-year-old man presented with persistent oligoarthritis and positive results for rheumatoid factor and was suspected of having rheumatoid arthritis (RA). However, the musculoskeletal ultrasonography (MSUS) findings were not consistent with those of typical RA. He had undergone surgery for carpal tunnel syndrome, which allowed both histopathological and microbiological examinations to be performed. A synovial tissue culture was positive for Sporothrix schenckii, and he was diagnosed with sporotrichal tenosynovitis...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28501934/cx-4945-the-protein-kinase-ck2-inhibitor-and-anti-cancer-drug-shows-anti-fungal-activity
#15
Maciej Masłyk, Monika Janeczko, Aleksandra Martyna, Konrad Kubiński
CX-4945 is a selective inhibitor of protein kinase CK2 exhibiting clinical significance. Its antitumor properties arise from the abrogation of CK2-mediated pro-survival cellular pathways. The presented data reveal the influence of CX-4945 on the growth of yeast cells showing variable potency against Saccharomyces cerevisiae deletion strains with different contents of CK2 subunits. The catalytic subunit CK2α appears to sensitize yeast to the CX-4945 action. Moreover, the compound suppresses hyphal growth and cell adhesion of Candida albicans, thereby abolishing some hallmarks of invasiveness of the pathogen...
May 13, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28495641/safety-and-efficacy-of-infliximab-therapy-in-the-setting-of-steroid-refractory-acute-graft-versus-host-disease
#16
Fevzi F Yalniz, Mehrdad Hefazi, Kristen McCollough, Mark R Litzow, William J Hogan, Robert Wolf, Hassan Alkhateeb, Ankit Kansagra, Moussab Damlaj, Mrinal M Patnaik
Acute graft versus host disease (aGVHD) is the leading cause of morbidity and mortality following allogenic hematopoietic cell transplantation (HCT). Corticosteroids are the first line treatment; however, less than half of the patients achieve durable remissions. Studies suggest that tumor necrosis factor alpha (TNF-α), a cytokine released from the bone marrow during conditioning, is involved in the pathogenesis of aGVHD. We retrospectively evaluated the outcome of anti-tumor necrosis factor alpha (TNF-α) therapy with infliximab in 35 patients with steroid refractory aGVHD (SR-aGVHD)...
May 8, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28494724/c-type-lectin-receptor-old-friend-and-new-player
#17
Hai Hou, Yahui Guo, Qing Chang, Tianming Luo, Xin Wu, Xueqiang Zhao
During the last two decades, C-type lectin receptors (CLRs) have been demonstrated to play key roles in initiating the host immune response upon fungal infection. It is well established that CLRs, such as Dectin-1, Dectin-2, Dectin-3 and Mincle, recognize the cell wall component from the infected microorganisms by using their carbohydrate recognition domain (CRD). Upon stimulation, CLRs induce multiple signal transduction cascades through their own immune-receptor tyrosine-based activation motifs (ITAMs) or interacting with ITAM-containing adaptor proteins such as FcRγ, which then lead to the activation of nuclear factor kappa B (NF-kB) through Syk- and CARD9-dependent pathway...
May 9, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28492800/fungal-infection-control-by-garlic-extracts-allium-sativum-l-and-modulation-of-peritoneal-macrophages-activity-in-murine-model-of-sporotrichosis
#18
J P Burian, L V S Sacramento, I Z Carlos
Garlic (Allium sativum L.) is grown all over the world as seasoning and medicinal vegetable since 3,000 BC. Allicin is the main component of garlic, being attributed to it the most of its biological activities, such as bactericidal, antifungal and antiviral actions. However, other compounds of garlic present antioxidant, hypocholesterolemic, vasodilator activities, protective action against different types of cancer, and immunomodulatory. Fungal infections are important causes of morbidity and mortality in people mainly in immunosuppressed ones...
May 4, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
https://www.readbyqxmd.com/read/28485100/does-agricultural-use-of-azole-fungicides-contribute-to-resistance-in-the-human-pathogen-aspergillus-fumigatus
#19
Derek Hollomon
Azole resistance in human fungal pathogens has increased over the past twenty years, especially in immunocompromised patients. Similarities between medical and agricultural azoles, and extensive azole (DMI) use in crop protection, prompted speculation that resistance in patients with aspergillosis originated in the environment. Aspergillus species, and especially Aspergillus fumigatus are the largest cause of patient deaths from fungi. Azole levels in soils following crop spraying, and differences in sensitivity between medical and agricultural azoles (DMIs), indicate weaker selection in cropping systems than in patients receiving azole therapy...
May 8, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28483535/a-battery-of-assays-as-an-integrated-approach-to-evaluate-fungal-and-mycotoxin-inhibition-properties-and-cytotoxic-genotoxic-side-effects-for-the-prioritization-in-the-screening-of-thiosemicarbazone-derivatives
#20
Claudia Zani, Franco Bisceglie, Francesco Maria Restivo, Donatella Feretti, Marianna Pioli, Francesca Degola, Serena Montalbano, Serena Galati, Giorgio Pelosi, Gaia V C Viola, Mauro Carcelli, Dominga Rogolino, Elisabetta Ceretti, Annamaria Buschini
Aflatoxins represent a serious problem for a food economy based on cereal cultivations used to fodder animal and for human nutrition. The aims of our work are two-fold: first, to perform an evaluation of the activity of newly synthesized thiosemicarbazone compounds as antifungal and anti-mycotoxin agents and, second, to conduct studies on the toxic and genotoxic hazard potentials with a battery of tests with different endpoints. In this paper we report an initial study on two molecules: S-4-isopropenylcyclohexen-1-carbaldehydethiosemicarbazone and its metal complex, bis(S-4-isopropenylcyclohexen-1-carbaldehydethiosemicarbazonato)nickel (II)...
May 5, 2017: Food and Chemical Toxicology
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