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https://www.readbyqxmd.com/read/29452960/traditionally-practiced-medicinal-plant-extracts-inhibit-the-ergosterol-biosynthesis-of-clinically-isolated-dermatophytic-pathogens
#1
M Chellappandian, M Saravanan, P Pandikumar, P Harikrishnan, K Thirugnanasambantham, S Subramanian, V I Hairul-Islam, S Ignacimuthu
OBJECTIVE: Dermatophytes are resistant to some available antibiotics. Development of new plant drugs to control drug resistant microbes is urgently needed. This study evaluates the antidermatophytic potential of 18 selected medicinal plants used by traditional healers in Theni and Virudhunagar Districts of Tamil Nadu, India. MATERIALS AND METHODS: Selected plant parts were collected, shade dried and powdered. Plant powders were extracted with ethanol and their antifungal potency was investigated against and clinical dermatophytes...
February 13, 2018: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/29452903/extracellular-vesicles-as-key-mediators-of-plant-microbe-interactions
#2
REVIEW
Brian D Rutter, Roger W Innes
Extracellular vesicles (EVs) are lipid compartments capable of trafficking proteins, lipids, RNA and metabolites between cells. Plant cells have been shown to secrete EVs during immune responses, but virtually nothing is known about their formation, contents or ultimate function. Recently developed methods for isolating plant EVs have revealed that these EVs are enriched in stress response proteins and signaling lipids, and appear to display antifungal activity. Comparison to work on animal EVs, and the observation that host-derived small interfering RNAs and microRNAs can silence fungal genes, suggests that plant EVs may also mediate trans-kingdom RNA interference...
February 13, 2018: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/29452593/a-review-on-biosynthesis-of-silver-nanoparticles-and-their-biocidal-properties
#3
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen, Rifaqat A K Rao
Use of silver and silver salts is as old as human civilization but the fabrication of silver nanoparticles (Ag NPs) has only recently been recognized. They have been specifically used in agriculture and medicine as antibacterial, antifungal and antioxidants. It has been demonstrated that Ag NPs arrest the growth and multiplication of many bacteria such as Bacillus cereus, Staphylococcus aureus, Citrobacter koseri, Salmonella typhii, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, Vibrio parahaemolyticus and fungus Candida albicans by binding Ag/Ag + with the biomolecules present in the microbial cells...
February 16, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29452247/persistent-candidemia-despite-appropriate-fungal-therapy-first-case-of-candida-auris-from-the-united-arab-emirates
#4
Adnan Alatoom, Mohammad Sartawi, Karen Lawlor, Laila AbdelWareth, Jens Thomsen, Ahmad Nusair, Imran Mirza
In this case, we report an elderly patient with multiple chronic conditions and prolonged intensive care units (ICU) stay who had recurrent Candida auris (C. auris) in blood despite antifungal therapy. C. auris was misidentified using conventional automated identification system as Candida haemulonii resulting in delayed diagnosis. The isolate showed increasing minimum inhibitory concentrations (MICs) to different antifungal drugs and persisted in the patient's blood before the patient deceased. This is the first case of C...
February 13, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29450209/creation-and-assessment-of-a-clinical-predictive-calculator-and-mortality-associated-with-candida-krusei-bloodstream-infections
#5
Ryan Kronen, Kevin Hsueh, Charlotte Lin, William G Powderly, Andrej Spec
Background: Candida krusei bloodstream infection (CK BSI) is associated with high mortality, but whether this is due to underlying comorbidities in affected patients or the organism itself is unknown. Identifying patient characteristics that are associated with CK BSI is crucial for clinical decision-making and prognosis. Methods: We conducted a retrospective analysis of hospitalized patients with Candida BSI at our institution between 2002 and 2015. Data were collected on demographics, comorbidities, medications, procedures, central lines, vital signs, and laboratory values...
February 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29450112/effect-of-bacillus-pumilus-ccibp-c5-on-musa-pseudocercospora-fijiensis-interaction
#6
Mileidy Cruz-Martín, Mayra Acosta-Suárez, Eilyn Mena, Berkis Roque, Tatiana Pichardo, Yelenys Alvarado-Capó
The effect of antifungal activity of culture filtrate (CF) of Bacillus pumilus strain CCIBP-C5, an isolate from a phyllosphere of banana ( Musa ) leaves, was determined on Pseudocercospora fijiensis challenged banana plants. The CF was shown to decrease the fungal biomass and induce changes in banana plant. In this sense, at 70 days post inoculation (dpi), a lower infection index as well as a decrease in fungal biomass after 6 dpi was obtained in treated plants with respect to control ones. At the same time, changes in the activities of several enzymes related to plant defense responses, such as phenylalanine ammonia lyase, chitinases, β-1,3-glucanases and peroxidases were observed...
February 2018: 3 Biotech
https://www.readbyqxmd.com/read/29449845/regulation-of-c-type-lectin-receptor-mediated-antifungal-immunity
#7
REVIEW
Juan Tang, Guoxin Lin, Wallace Y Langdon, Lijian Tao, Jian Zhang
Of all the pathogen recognition receptor families, C-type lectin receptor (CLR)-induced intracellular signal cascades are indispensable for the initiation and regulation of antifungal immunity. Ongoing experiments over the last decade have elicited diverse CLR functions and novel regulatory mechanisms of CLR-mediated-signaling pathways. In this review, we highlight novel insights in antifungal innate and adaptive-protective immunity mediated by CLRs and discuss the potential therapeutic strategies against fungal infection based on targeting the mediators in the host immune system...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29449266/fungal-liver-abscess-in-an-immunocompetent-patient-who-underwent-repeated-ercps-and-subtotal-cholecystectomy
#8
Sundas Hasan, Robert Fearn
We report a case of a previously healthy female patient who initially presented with fever, jaundice and right upper quadrant pain three days after dilatation and stenting of a stricture of the common bile duct (CBD). During an earlier admission, the patient had undergone endoscopic retrograde cholangiopancreatography (ERCP) having presented with fevers and biliary dilatation on ultrasound. The ERCP features were more consistent with Mirizzi's Syndrome. The patient subsequently underwent subtotal cholecystectomy and later developed a CBD stricture, requiring repeat ERCP and stent insertion...
February 15, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29448504/antifungal-effect-of-a-dental-tissue-conditioner-containing-nystatin-loaded-alginate-microparticles
#9
Hyun-Jin Kim, Jun Sik Son, Tae-Yub Kwon
In this in vitro study, nystatin-alginate microparticles were successfully fabricated to control the release of nystatin from a commercial dental tissue conditioner. These nystatin-alginate microparticles were spherical and had a slightly rough surface. The microparticles incorporated into the tissue conditioner were distributed homogeneously throughout the tissue conditioner matrix. The incorporation of the microparticles did not deteriorate the mechanical properties of the original material. The agar diffusion test results showed that the tissue conditioner containing the microparticles had a good antifungal effect against Candida albicans...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29446718/current-trends-and-future-directions-of-fluoroquinolones
#10
Hamada H H Mohammed, Gamal El-Din A A Abuo-Rahma, Samar H Abbas, El-Shimaa M N Abdelhafez
Fluoroquinolones represent an interesting synthetic class of antimicrobial agents with broad spectrum and potent activity. Since the discovery of nalidixic acid, the prototype of quinolones, several structural modifications to the quinolone nucleus have been carried out for improvement of potency, spectrum of activity, and to understand their structure activity relationship (SAR). The C-7 substituent was reported to have a major impact on the activity. Accordingly, Substitution at C-7 or its N-4-piperazinyl moiety was found to affect potency, bioavailability, and physicochemical properties...
February 14, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29446640/asymmetric-total-synthesis-of-majusculoic-acid-via-a-dimerization-dedimerization-strategy-and-absolute-configuration-assignment
#11
Renzhi Chen, Linbin Li, Na Lin, Rong Zhou, Yuhui Hua, Hejun Deng, Yandong Zhang
The first total synthesis of (+)-majusculoic acid, the enantiomer of naturally occurring antifungal cyclopropane fatty acid (-)-majusculoic acid, was accomplished in 13 steps, leading to the assignment of the absolute configuration of the natural product. The synthesis featured a ring closing metathesis dimerization, a conformationally controlled cyclopropanation, a dedimerization, and a bromoolefination.
February 15, 2018: Organic Letters
https://www.readbyqxmd.com/read/29446234/a-natural-antioxidant-tannic-acid-mitigates-iron-overload-induced-hepatotoxicity-in-swiss-albino-mice-through-ros-regulation
#12
Tapasree Basu, Sourav Panja, Anil Khushalrao Shendge, Abhishek Das, Nripendranath Mandal
Tannic acid (TA), a water soluble natural polyphenol with 8 gallic acids groups, is abundantly present in various medicinal plants. Previously TA has been investigated for its antimicrobial and antifungal properties. Being a large polyphenol, TA chelates more than 1 metal. Hence TA has been explored for potent antioxidant activities against reactive oxygen species (ROS), reactive nitrogen species (RNS) and as iron chelator in vitro thereby mitigating iron-overload induced hepatotoxicity in vivo. Iron dextran was injected intraperitoneally in Swiss albino mice to induce iron-overload triggered hepatotoxicity, followed by oral administration of TA for remediation...
February 15, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29445920/phylogenetic-diversity-and-in-vitro-susceptibility-profiles-of-human-pathogenic-members-of-the-fusarium-fujikuroi-species-complex-isolated-from-south-india
#13
Ananya Tupaki-Sreepurna, Vijayakishore Thanneru, Sangeetha Natarajan, Savitri Sharma, Anjana Gopi, Murugan Sundaram, Anupma Jyoti Kindo
Availability of molecular methods, gene sequencing, and phylogenetic species recognition have led to rare fungi being recognized as opportunistic pathogens. Fungal keratitis and onychomycosis are fairly common mycoses in the tropics, especially among outdoor workers and enthusiasts. The frequently isolated etiological agents belong to genera Candida, Aspergillus, and Fusarium. Within the genus Fusarium, known to be recalcitrant to prolonged antifungal treatment and associated with poor outcome, members of the Fusarium solani species complex are reported to be most common, followed by members of the Fusarium oxysporum SC and the Fusarium fujikuroi SC (FFSC)...
February 14, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29445628/medicinal-properties-of-adiantum-capillus-veneris-linn-in-traditional-medicine-and-modern-phytotherapy-a-review-article
#14
REVIEW
Sahar Dehdari, Homa Hajimehdipoor
Background: Adiantum capillus-veneris Linn (Maidenhair fern) is an herb belonging to the family Pteridaceae. It is named as " Pare-siavashan " in medical and pharmaceutical textbooks of Iranian Traditional Medicine. The fronds of Maidenhair fern were mainly administrated by ancient physicians as single medicine or in combination with other plants in multi-herbal formulations for curing different diseases. Because of different chemical compositions, the herb fronds were also assessed for its numerous pharmacological effects...
February 2018: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/29445362/microbial-flora-associated-with-the-halophyte-salsola-imbricate-and-its-biotechnical-potential
#15
Fehmida Bibi, Gary A Strobel, Muhammad I Naseer, Muhammad Yasir, Ahmed A Khalaf Al-Ghamdi, Esam I Azhar
Halophytes are associated with the intertidal forest ecosystem of Saudi Arabia and seemingly have an immense potential for yielding useful and important natural products. In this study we have aimed to isolate and characterize the endophytic and rhizospheric bacterial communities from the halophyte, Salsola imbricata , In addition these bacterial strains were identified and selected strains were further studied for bioactive secondary metabolites. At least 168 rhizspheric and endophytic bacteria were isolated and of these 22 were active antagonists against the oomycetous fungal plant pathogens, Phytophthora capsici and Pythium ultimum ...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29442979/development-of-silver-based-bactericidal-composite-nanofibers-by-airbrushing
#16
Sukhwinder K Bhullar, Deepti Rana, Burçak Kaya Ozsel, Mehmet Orhan, Martin B G Jun, Harpal S Buttar, Serge Ostrovidov, Murugan Ramalingam
In this article, we report a simple, cost-effective and eco-friendly method of airbrushing for the fabrication of antibacterial composite nanofibers using Nylon-6 and silver chloride (AgCl). The Nylon-6 is a widely used polymer for various biomedical applications because of its excellent biocompatibility and mechanical properties. Similarly, silver has also been known for their antibacterial, antifungal, antiviral, and anti-inflammatory properties. In order to enhance the antibacterial functionality of the Nylon-6, composite nanofibers in combination with AgCl have been fabricated using airbrush method...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442903/ultrasonic-assisted-dispersion-of-zno-nanoparticles-and-its-inhibition-activity-to-trichoderma-viride
#17
Zhengwei Luo, Min Zhu, Mulin Guo, Zhouyang Lian, Wen Tong, Jirong Wang, Binghua Zhang, Wuji Wei
The activity inhibition of fungi by ZnO nanoparticles (NPs) has shown huge potential applications in the area of hygienic coatings. However, the inhibition efficiency was limited due to the agglomeration of NPs. To obtain well-dispersed and highly stabilized ZnO nanofluids, ZnO NPs were capped with four kinds of surfactants under ultrasonication. The capping procedure was optimized by varying the dosage of surfactants, the ultrasonic duration, ultrasonic power and temperature. Capped ZnO nanofluids were then used for the inhibition of Trichoderma viride...
April 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29441986/caspofungin-infusion-solutions-50-mg-100-ml-chemical-stability-and-antifungal-activity-against-candida-spp
#18
N Pinder, L H Pelzl, G Walther, J Backhaus, O Kurzai, T Hoppe-Tichy
BACKGROUND: Ready to use caspofungin infusion bags are centrally prepared in the Hospital Pharmacy, University Hospital of Heidelberg, for economic reasons and possibly occurring problems with drug shortages. The aim of this study was a quality control of the in-house preparation of caspofungin infusion bags and the preparation process. Caspofungin concentration with regard to chemical stability and antifungal activity of caspofungin preparations were defined as quality parameters. METHODS: Three caspofungin infusion bags (50 mg in 100 mL 0...
April 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29441576/barleria-cristata-perspective-towards-phytopharmacological-aspects
#19
REVIEW
Harish Kumar, Rohini Agrawal, Vipin Kumar
OBJECTIVES: Barleria cristata (Family: Acanthaceae), commonly known as Philippine violet, is used in different ethnomedical systems for the treatment of a wide range of ailments. This review aimed to provide a scientific overview of B. cristata with reference to its ethnobotanical aspects, geographical distribution, medicinal uses, phytochemistry and pharmacological activity, and critical analyses research gaps and future research opportunities for investigations on this plant. KEY FINDINGS: Ethnomedical uses of the plant have been observed in lungs disorders, inflammatory conditions, toothache, anaemia, snake bite, diabetes and tuberculosis...
February 13, 2018: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/29441283/caspofungin-resistant-disseminated-candidiasis-in-a-7-year-old-girl-with-t-cell-lymphoma-a-case-report
#20
Michael Schmalz, Manasa Joysula, Jack H Staddon, Arthur Feinberg
Immunocompromised patients are at increased risk of disseminated candidiasis. Guidelines for the treatment of invasive candidiasis were last published in 2009, but resistance to the recommended treatment has recently been described in the literature. Here we present the case of an immunocompromised child with T-cell lymphoma who died secondary to disseminated candidiasis despite prolonged antifungal therapy. Awareness of the increasing resistance patterns of Candida when caring for immunocompromised patients, especially pediatric patients, may improve treatment and create better patient outcomes...
January 2018: Translational Pediatrics
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