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https://www.readbyqxmd.com/read/28346848/cardiovascular-protective-effects-and-clinical-applications-of-resveratrol
#1
Sanghyun Cho, Kyung Namkoong, Minji Shin, Jueun Park, Eunyeong Yang, Jinsoo Ihm, Vu Thi Thu, Hyoung Kyu Kim, Jin Han
Resveratrol is a naturally occurring phenol that is generated by plant species following injury or attack by bacterial and fungal pathogens. This compound was first described as the French Paradox in 1992. Later in 2003, resveratrol was reported to activate sirtuins in yeast cells. Recent experimental studies have found that resveratrol offers a variety of benefits that include both anticarcinogenic and anti-inflammatory effects in addition to the ability to reverse obesity, attenuate hyperglycemia and hyperinsulinemia, protect heart and endothelial function, and increase the life span...
March 27, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28346375/liposomal-formulations-in-clinical-use-an-updated-review
#2
REVIEW
Upendra Bulbake, Sindhu Doppalapudi, Nagavendra Kommineni, Wahid Khan
Liposomes are the first nano drug delivery systems that have been successfully translated into real-time clinical applications. These closed bilayer phospholipid vesicles have witnessed many technical advances in recent years since their first development in 1965. Delivery of therapeutics by liposomes alters their biodistribution profile, which further enhances the therapeutic index of various drugs. Extensive research is being carried out using these nano drug delivery systems in diverse areas including the delivery of anti-cancer, anti-fungal, anti-inflammatory drugs and therapeutic genes...
March 27, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28343756/inhibition-of-malassezia-globosa-carbonic-anhydrase-with-phenols
#3
Yeganeh Entezari Heravi, Silvia Bua, Alessio Nocentini, Sonia Del Prete, Ali Akbar Saboury, Hassan Sereshti, Clemente Capasso, Paola Gratteri, Claudiu T Supuran
A panel of 22 phenols was investigated as inhibitors of the β-class carbonic anhydrase (CAs, EC 4.2.1.1) from the fungal parasite Malassezia globosa (MgCA), a validated anti-dandruff drug target. The displayed inhibitory activities were compared to the ones previously reported against the off-target widely distributed human (h) isoforms hCA I and II. All tested phenols possessed a better efficacy in inhibiting MgCA than the clinically used sulfonamide acetazolamide, with KIs in the range of 2.5 and 65.0μM...
March 18, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28340497/p450-inhibitor-ketoconazole-increased-the-intratumor-drug-levels-and-antitumor-activity-of-fenretinide-in-human-neuroblastoma-xenograft-models
#4
Lluis Lopez-Barcons, Barry J Maurer, Min H Kang, C Patrick Reynolds
We previously reported that concurrent ketoconazole, an oral anti-fungal agent and P450 enzyme inhibitor, increased plasma levels of the cytotoxic retinoid, fenretinide (4-HPR) in mice. We have now determined the effects of concurrent ketoconazole on 4-HPR cytotoxic dose-response in four neuroblastoma (NB) cell lines in vitro and on 4-HPR activity against two cell line-derived, subcutaneous NB xenografts (CDX) and three patient-derived NB xenografts (PDX). Cytotoxicity in vitro was assessed by DIMSCAN assay...
March 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28339295/antifungal-plant-defensins-increased-insight-in-their-mode-of-action-as-a-basis-for-their-use-to-combat-fungal-infections
#5
Tanne L Cools, Caroline Struyfs, Bruno Pa Cammue, Karin Thevissen
Plant defensins are small, cationic peptides with a highly conserved 3D structure. They have been studied extensively in the past decades. Various biological activities have been attributed to plant defensins, such as anti-insect and antimicrobial activities, but they are also known to affect ion channels and display antitumor activity. This review focuses on the structure, biological activity and antifungal mode of action of some well-characterized plant defensins, with particular attention to their fungal membrane target(s), their induced cell death mechanisms as well as their antibiofilm activity...
March 24, 2017: Future Microbiology
https://www.readbyqxmd.com/read/28335692/liposomal-amphotericin-b-ambisome%C3%A2-at-beginning-of-its-third-decade-of-clinical-use
#6
Franco Aversa, Alessandro Busca, Anna Candoni, Simone Cesaro, Corrado Girmenia, Mario Luppi, Anna Maria Nosari, Livio Pagano, Luigina Romani, Giuseppe Rossi, Adriano Venditti, Andrea Novelli
Haematologists have been using liposomal amphotericin-B (L-AMB) since 1993 and despite the introduction of several novel antifungal agents over the past decade, their propensity to prescribe L-AMB remains unchanged. Although antifungal guidelines strongly recommend voriconazole as the drug of choice in the treatment of probable and proven invasive fungal disease (IFD), L-AMB is widely used in the real life because of its several advantages in terms of wide anti-mould spectrum, tolerability and efficacy. Furthermore, the concept that L-AMB is endowed with immune-modulating effects, which may have a role in fighting IFD, represent another reason for its use in patients who do not tolerate an excess of inflammation...
March 24, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28332162/isolation-of-taxol-producing-endophytic-fungi-from-iranian-yew-through-novel-molecular-approach-and-their-effects-on-human-breast-cancer-cell-line
#7
Abdollah Kasaei, Mohsen Mobini-Dehkordi, Foruzandeh Mahjoubi, Behnaz Saffar
Taxol or paclitaxel, an approved drug by the Food and Drug Administration, is being used for the treatment of human cancers. This study aimed to isolate and determine different species of native endophytic fungi from Iranian Taxus baccata (yew) plants located in the northern forests of Iran. To do so, a novel molecular screening approach was performed for 50 isolated endophytic fungi through amplification of exon No. 1 of taxadine synthase as a key gene in taxol production pathway. We used effective colony-polymerase chain reaction technique for rapid screening of potent taxol-producing fungi instead of genomic DNA extraction...
March 23, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28331311/a-potential-in-situ-gel-formulation-loaded-with-novel-fabricated-poly-lactide-co-glycolide-nanoparticles-for-enhancing-and-sustaining-the-ophthalmic-delivery-of-ketoconazole
#8
Tarek Abdelnapy Ahmed, Bader M Aljaeid
Oral ketoconazole therapy is commonly associated with serious hepatotoxicity. Improving ocular drug delivery could be sufficient to treat eye fungal infections. The purpose of this study was to develop optimized ketoconazole poly(lactide-co-glycolide) nanoparticles (NPs) with subsequent loading into in situ gel (ISG) formulation for ophthalmic drug delivery. Three formulation factors were optimized for their effect on particle size (Y1) and entrapment efficiency (Y2) utilizing central composite experimental design...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28330304/elicitation-of-gymnemic-acid-production-in-cell-suspension-cultures-of-gymnema-sylvestre-r-br-through-endophytic-fungi
#9
Vasudeva Reddy Netala, Venkata Subbaiah Kotakadi, Susmila Aparna Gaddam, Sukhendu Bikash Ghosh, Vijaya Tartte
The enhancement of plant secondary metabolite production in cell suspension cultures through biotic or abiotic elicitation has become a potential biotechnological approach for commercialization or large-scale production of bioactive compounds. Gymnema sylvestre R.Br. is an important medicinal plant, rich in a group of oleanane triterpenoid saponins called gymnemic acid, well known for its anti-diabetic activity. Two endophytic fungal strains were isolated from the leaves of G. sylvestre and identified as Polyancora globosa and Xylaria sp...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330230/isolation-and-biological-evaluation-of-n-4-aminocyclooctyl-3-5-dinitrobenzamide-a-new-semisynthetic-derivative-from-the-mangrove-associated-actinomycete-pseudonocardia-endophytica-vuk-10
#10
Usha Kiranmayi Mangamuri, Muvva Vijayalakshmi, Sudhakar Poda, Bramanandam Manavathi, Bhujangarao Chitturi, Venkateswarlu Yenamandra
The present study was aimed to isolate novel bioactive compounds from actinomycetes species isolated from mangrove habitats. With this connection, Pseudonocardia endophytica (VUK-10) was isolated using dilution plate technique and was examined for its secondary metabolite profiling. After successive purification and spectroscopic characterization viz., FTIR, mass, NMR, DEPT, HMQC, HMBC, and COSY spectroscopy, two compounds were identified including a semi synthetic derivative N-(4-aminocyclooctyl)-3, 5-dinitrobenzamide (1), obtained from the precursor of novel natural product cyclooctane-1,4-diamine (3), along with a known compound 3-((1H-indol-6-yl) methyl) hexahydropyrrolo [1, 2-a] pyrazine-1, 4-dione (2)...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330226/anti-oxidant-and-anti-microbial-properties-of-some-ethno-therapeutically-important-medicinal-plants-of-indian-himalayan-region
#11
Sandeep Rawat, Arun K Jugran, Amit Bahukhandi, Asutosh Bahuguna, Indra D Bhatt, Ranbeer S Rawal, Uppeandra Dhar
Therapeutic potential of medicinal plants as a source of noble natural anti-oxidants and anti-microbial agents has been well recognised all across the globe. In this study, phenolic compounds, in vitro anti-oxidant activity and anti-microbial properties have been investigated in five Himalayan medicinal plants, (e.g., Acorus calamus, Habenaria intermedia, Hedychium spicatum, Roscoea procera and Valeriana jatamansi) in different solvent systems. R. procera exhibited significantly (p < 0.05) higher phenolics; while H...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330204/endophytic-fungal-isolate-mediated-biosynthesis-of-silver-nanoparticles-and-their-free-radical-scavenging-activity-and-anti-microbial-studies
#12
Vasudeva Reddy Netala, Venkata Subbaiah Kotakadi, Pushpalatha Bobbu, Susmila Aparna Gaddam, Vijaya Tartte
The present study reports that the biosynthesis of AgNPs using an endophytic fungus isolated from the ethnomedicinal plant Centella asiatica. The endophytic fungus was identified as Aspergillus versicolor ENT7 based on 18S rRNA gene sequencing (NCBI Accession number KF493864). The AgNPs synthesized were characterized by UV-visible spectroscopy, Fourier transform infra-red spectroscopy (FTIR), transmission electron microscopy (TEM), X-ray diffraction (XRD), particle size analyzer, and zeta potential measurements...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28323242/investigation-of-the-indigenous-fungal-community-populating-barley-grains-secretomes-and-xylanolytic-potential
#13
Abida Sultan, Jens C Frisvad, Birgit Andersen, Birte Svensson, Christine Finnie
The indigenous fungal species populating cereal grains produce numerous plant cell wall-degrading enzymes including xylanases, which could play important role in plant-pathogen interactions and in adaptation of the fungi to varying carbon sources. To gain more insight into the grain surface-associated enzyme activity, members of the populating fungal community were isolated, and their secretomes and xylanolytic activities assessed. Twenty-seven different fungal species were isolated from grains of six barley cultivars over different harvest years and growing sites...
March 18, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28314209/pharmaceuticals-removal-and-microbial-community-assessment-in-a-continuous-fungal-treatment-of-non-sterile-real-hospital-wastewater-after-a-coagulation-flocculation-pretreatment
#14
J A Mir-Tutusaus, E Parladé, M Llorca, M Villagrasa, D Barceló, S Rodriguez-Mozaz, M Martinez-Alonso, N Gaju, G Caminal, M Sarrà
Hospital wastewaters are a main source of pharmaceutical active compounds, which are usually highly recalcitrant and can accumulate in surface and groundwater bodies. Fungal treatments can remove these contaminants prior to discharge, but real wastewater poses a problem to fungal survival due to bacterial competition. This study successfully treated real non-spiked, non-sterile wastewater in a continuous fungal fluidized bed bioreactor coupled to a coagulation-flocculation pretreatment for 56 days. A control bioreactor without the fungus was also operated and the results were compared...
March 8, 2017: Water Research
https://www.readbyqxmd.com/read/28314049/biological-evaluation-of-3-hydroxybenzyl-alcohol-an-extrolite-produced-by-aspergillus-nidulans-strain-kzr-132
#15
C Ganesh Kumar, Poornima Mongolla, Sujitha Pombala, Shiva Bandi, K Suresh Babu, Kallaganti Venkata Siva Ramakrishna
AIMS: The aim of the study was to purify and characterize a bioactive compound from Aspergillus nidulans strain KZR-132 and its biological evaluation. METHODS AND RESULTS: A bioactive extolite was purified from Aspergillus nidulans strain KZR-132, and its chemical structure was elucidated as 3-hydroxylbenzyl alcohol (3-HBA) based on (1) H and (13) C NMR, FT-IR and mass spectroscopic analysis. The antimicrobial efficacy of 3-HBA was established against Gram-positive, Gram-negative bacteria and different Candida strains...
March 17, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28303575/isoform-localization-of-dectin-1-regulates-the-signaling-quality-of-anti-fungal-immunity
#16
Mike Fischer, Jörg P Müller, Bärbel Spies-Weisshart, Christine Gräfe, Oliver Kurzai, Kerstin Hünniger, Andreas Hochhaus, Sebastian Scholl, Ulf Schnetzke
Dectin-1 is recognized as a major receptor for fungal ß-glucans and contributes to anti-fungal immunity. Human monocyte populations express Dectin-1 isoforms A and B, which differ by the presence of a stalk region and its N-linked glycosylation site. Here, we analyzed the expression of both isoforms in human monocyte-derived cells. The cellular localization on cell lines stably expressing either Dectin-1 isoform A or B was studied by flow cytometry and confocal laser scanning microscopy. Intracellular protein signaling and cytokine production was analyzed by immunoblotting and cytometric bead arrays, respectively...
March 16, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28303122/antifungal-drug-susceptibility-of-candida-species-isolated-from-hiv-positive-patients-recruited-at-a-public-hospital-in-s%C3%A3-o-lu%C3%A3-s-maranh%C3%A3-o-brazil
#17
Ana L G Terças, Sirlei G Marques, Eduardo B Moffa, Márcia B Alves, Conceição M P S de Azevedo, Walter L Siqueira, Cristina A Monteiro
Oropharyngeal candidiasis is the most common fungal infection in hospitalized patients with acquired immune deficiency syndrome (AIDS). Its progression results in invasive infections, which are a significant cause of morbidity and mortality. This study aimed to quickly and accurately identify Candida spp. from oral mucosa of AIDS patients recruited at Presidente Vargas Hospital, in São Luís city, Brazil and to evaluate the sensitivity profile of these fungi to antifungals by using an automated system. Isolates were collected from oropharyngeal mucosa of 52 hospitalized AIDS patients, under anti-viral and antifungal therapies...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28299723/mold-and-human-health-a-reality-check
#18
REVIEW
Andrea T Borchers, Christopher Chang, M Eric Gershwin
There are possibly millions of mold species on earth. The vast majority of these mold spores live in harmony with humans, rarely causing disease. The rare species that does cause disease does so by triggering allergies or asthma, or may be involved in hypersensitivity diseases such as allergic bronchopulmonary aspergillosis or allergic fungal sinusitis. Other hypersensitivity diseases include those related to occupational or domiciliary exposures to certain mold species, as in the case of Pigeon Breeder's disease, Farmer's lung, or humidifier fever...
March 16, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28297749/endophytic-diaporthe-sp-ed2-produces-a-novel-anti-candidal-ketone-derivative
#19
Woei Yenn Tong, Chean Ring Leong, Wen Nee Tan, Melati Khairuddean, Latiffah Zakaria, Darah Ibrahim
This study was aimed to ascertain the anti-candidal efficacy of a novel ketone derivative isolated from Diaporthe sp. ED2, an endophytic fungus residing in medicinal herb Orthosiphon stamieus Benth. The ethyl acetate extract of the fungal culture was separated by open column and reverse phase- high performance liquid chromatography. The eluent of the second peak at retention time 5.64 minute in the HPLC system was the only peak that exhibited anti-candidal activity on Kirby Bauer assay. The structure of the compound was also elucidated by nuclear magnetic resonance and spectroscopy techniques...
March 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28293222/characterization-of-batrachochytrium-dendrobatidis-inhibiting-bacteria-from-amphibian-populations-in-costa-rica
#20
Joseph D Madison, Elizabeth A Berg, Juan G Abarca, Steven M Whitfield, Oxana Gorbatenko, Adrian Pinto, Jacob L Kerby
Global amphibian declines and extinction events are occurring at an unprecedented rate. While several factors are responsible for declines and extinction, the fungal pathogen Batrachochytrium dendrobatidis (Bd) has been cited as a major constituent in these events. While the effects of this chytrid fungus have been shown to cause broad scale population declines and extinctions, certain individuals and relict populations have shown resistance. This resistance has been attributed in part to the cutaneous bacterial microbiome...
2017: Frontiers in Microbiology
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