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Anti fungal

Amit Shivajirao Waghmare, Shivaji Sandu Pandit, Dayanand M Suryawanshi
AIM AND OBJECTIVE: 4H-pyran is one of the most well-known groups of synthetic heterocyclic compounds and it has attracted considerable attention of chemists in recent years because of their extensive range of biological and pharmaceutical activities. These compounds are used as antibacterial, anticancer agents, anti-coagulants, spasmolytics and anti-anaphylactic. 4H-pyran derivatives are utilized in cosmetics, pigments, biodegradable agrochemicals as well as photoactive materials. In addition, 4H-pyrans are also helpful as cognitive enhancers for the treatment of neuro degenerative diseases, including Alzheimer's disease, as well as for the treatment of schizophrenia and myoclonus...
March 14, 2018: Combinatorial Chemistry & High Throughput Screening
Maryam Malmir, Rita Serrano, Manuela Caniça, Beatriz Silva-Lima, Olga Silva
Abstract : Plant-based systems continue to play an essential role in healthcare, and their use by different cultures has been extensively documented. Asphodelus L. ( Asphodelaceae ) is a genus of 18 species and of a total of 27 species, sub-species and varieties, distributed along the Mediterranean basin, and has been traditionally used for treating several diseases particularly associated with inflammatory and infectious skin disorders. The present study aimed to provide a general review of the available literature on ethnomedical, phytochemical, and biological data related to the genus Asphodelus as a potential source of new compounds with biological activity...
March 13, 2018: Plants (Basel, Switzerland)
Paweł Borowiecki, Patrycja Wińska, Maria Bretner, Małgorzata Gizińska, Mirosława Koronkiewicz, Monika Staniszewska
Three out of 16 newly synthesized 1,3-dimethylxanthine derivatives (proxyphylline analogues) exhibited consistencies between antifungal and anticancer properties. Proxyphylline possessing 1-(10H-phenothiazin-10-yl)propan-2-yl (6) and polybrominated benzimidazole (41) or benzotriazole moiety (42) remained selectively cidal against Candida albicans (lg R ≥ 3 at conc. of 31, 36 and 20 μM, respectively) however not against normal mammalian Vero cell line in vitro (IC50  ≥ 280 μM) and Galleria mellonella in vivo...
February 27, 2018: European Journal of Medicinal Chemistry
Sophie de Vries, Janina K von Dahlen, Anika Schnake, Sarah Ginschel, Barbara Schulz, Laura E Rose
Phytophthora infestans is a devastating pathogen of tomato and potato. It readily overcomes resistance genes and applied agrochemicals and hence even today causes large yield losses. Fungal endophytes provide a largely unexplored avenue of control of Phytophthora infestans. Not only do endophytes produce a wide array of bioactive metabolites, they may also directly compete with and defeat pathogens in planta. Here, we tested twelve fungal endophytes isolated from different plant species in vitro for their production of metabolites with anti- Phytophthora activity...
March 8, 2018: FEMS Microbiology Ecology
Lijun Yang, Min Yang, Siying Li, Zhongxi Zhao
Posaconazole is a broad-spectrum antibacterial drug for the treatment of invasive fungal infections. However, its clinical usage is limited by a lot of adverse reactions such as diarrhea. S-allylmercaptocysteine (SAMC), a garlic organosulfur compound, has a strong antioxidative and anti-inflammatory activity. This study aimed to examine the protective effects of SAMC on posaconazole-induced adverse effects. Mice were treated with the blank control, enteric coated posaconazole microparticles (POS group) and its combination with SAMC (Combination group)...
March 8, 2018: International Immunopharmacology
Bolanle C Akinwumi, Kimberly-Ann M Bordun, Hope D Anderson
Stilbenoids are a group of naturally occurring phenolic compounds found in various plant species. They share a common backbone structure known as stilbene, but differ in the nature and position of substituents. Stilbenoids are classified as phytoalexins, which are antimicrobial compounds produced de novo in plants to protect against fungal infection and toxins. In this review, the biological effects of stilbenoids such as resveratrol, pterostilbene, gnetol and piceatannol are discussed. Stilbenoids exert various biological activities ranging from cardioprotection, neuroprotection, anti-diabetic properties, depigmentation, anti-inflammation, cancer prevention and treatment...
March 9, 2018: International Journal of Molecular Sciences
Alfonso T Garcia-Sosa
Leishmaniasis, malaria, and fungal diseases are burdens on individuals and populations and can present severe complications. Easily accessible chemical treatments for these diseases are increasingly sought-after. Targeting the parasite N-myristoyl transferase while avoiding the human enzyme and other anti-targets may allow the prospect of compounds with pan-activity against these diseases, which would simplify treatments and costs. Developing chemical libraries, both virtual and physical, that have been filtered and flagged early on in the drug discovery process (before virtual screening) could reduce attrition rates of compounds being developed and failing late in development stages due to problems of side-effects or toxicity...
March 8, 2018: Current Computer-aided Drug Design
Surendra S Agrawal, Tapasya P Yallatikar, Pravina N Gurjar
Brassica nigra belonging to the family Brassicaceae (syn - black mustard) comprises of dried seeds and is widely cultivated in Mediterranean region and various other countries like India and Europe. B. nigra contains glycosinolates which undergoes hydrolysis in the presence of myrosinase enzyme yields allyl isothiocyante. The bitter taste and pungent odor is due to the isothiocyanates. B. Nigra shows various activities that are medically important such as anticancer, anti-bacterial, anti-fungal, anti-helminthic, protection against renal and hepatic toxicity and can also be used in diabetes treatment...
March 8, 2018: Current Drug Discovery Technologies
Tânia Raquel Rodrigues Grainha, Paula Alexandra da Silva Jorge, Martín Pérez-Pérez, Gael Pérez Rodríguez, Maria Olívia Baptista Oliveira Pereira, Anália Maria Garcia Lourenço
The complex virulence attributes of Candida albicans are an attractive target to exploit in the development of new antifungals and anti-virulence strategies to combat C. albicans infections. Particularly, quorum-sensing (QS) has been reported as critical for virulence regulation in C. albicans. This work presents two knowledge networks with up-to-date information about QS regulation and experimentally tested anti-QS and anti-virulence agents for C. albicans. A semi-automatic bioinformatics workflow that combines literature mining and expert curation was used to retrieve otherwise scattered information from the scientific literature...
March 6, 2018: FEMS Yeast Research
E Fiani, F Guisset, Q Fontanges, J Deviere, A Lemmers
INTRODUCTION : Esophagitis dissecans superficialis (EDS) is a rare desquamative disorder of the eso-phagus, characterized by sloughing of the superficial mucosa. It is a benign entity of uncertain etiology. Most cases of EDS are idiopathic but can be caused by medications, hot beverages, chemical irritants, celiac disease and many skin conditions. AIM AND METHODS: Knowing that few case series have described this entity, we decided to review all the cases diagnosed in our center to characterize them...
July 2017: Acta Gastro-enterologica Belgica
Sabrin Ibrahim, Gamal A Mohamed, Rwaida A Al Haidari, Amal A El-Kholy, Mohamed F Zayed
Malaria is one of the major infectious diseases and foremost cause of mortality and morbidity in many subtropical and tropical regions. In the last years, the situation has become worse in many ways, due to increase the parasites resistance to various available antimalarial agents. Furthermore, the malaria`s control is beginning to be more sophisticated by the parallel spread of mosquito vector`s resistance to the available insecticides. Recently, there is a wide consensus to seek for target specific, safe, affordable, and effective new antimalarial agents, which can compete with synthetic ones...
March 5, 2018: Mini Reviews in Medicinal Chemistry
Pooja Vyas, Dinesh Kumar Yadav, Poonam Khandelwal
Tectona grandis Linn (Teak), is locally known as Sagwan, belongs to Lamiaceae family. It is one of the most valuable timber in the world, due to its beautiful surface and its resistance to termite and fungal damage. The main active ingredient compounds that are responsible for these action are tectoquinone, lapachol and deoxylapachol. Naphthoquinones, anthraquinones and isoprenoid quinones are abundant metabolites in teak. In addition to these, teak contains several other phytochemicals such as triterpenoids, steroids, lignans, fatty esters and phenolic compounds...
March 6, 2018: Natural Product Research
Koji Kitazawa, Koichi Wakimasu, Kazuhito Yoneda, Bernie Iliakis, Chie Sotozono, Shigeru Kinoshita
Purpose: Fungal infections post keratoplasty due to contamination of the donor corneal graft have become important issues that need to be addressed. Here we report a case of fungal keratitis and endophthalmitis post penetrating keratoplasty (PKP) due to fungal contamination of the donor corneal graft. Observations: We present a 52-year-old male who underwent PKP with a donor corneal graft that was later found to be contaminated with fungus. At 4-weeks postoperative, infectious infiltrates suddenly appeared at the border between the host and donor corneal graft, and endophthalmitis concomitantly occurred...
April 2017: American Journal of Ophthalmology Case Reports
Lingmei Sun, Kai Liao, Chengcheng Hang
BACKGROUND: Owing to the increased morbidity and mortality associated with invasive fungal infections, treatments with a combination of antifungal agents are often considered. Caffeic acid phenethyl ester (CAPE), a major active component of propolis, possesses many biological activities, including antibacterial, antiviral, antioxidant, anti-inflammatory, and anticancer effects. PURPOSE: This study aimed to evaluate the interaction between CAPE and fluconazole (FLC) against Candida albicans...
February 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Mobaswar Hossain Chowdhury, Lisa Kathleen Ryan, Kartikeya Cherabuddi, Katie B Freeman, Damian G Weaver, Jeffry C Pelletier, Richard W Scott, Gill Diamond
Invasive candidiasis caused by Candida albicans and non- albicans Candida (NAC) present a serious disease threat. Although the echinocandins are recommended as the first line of antifungal drug class, resistance to these agents is beginning to emerge, demonstrating the need for new antifungal agents. Host defense peptides (HDP) exhibit potent antifungal activity, but as drugs they are difficult to manufacture efficiently, and they are often inactivated by serum proteins. HDP mimetics are low molecular weight non-peptide compounds that can alleviate these problems and were shown to be membrane-active against C...
February 27, 2018: Journal of Fungi (Basel, Switzerland)
Dominika Mániková, Zuzana Šestáková, Jana Rendeková, Danuša Vlasáková, Patrícia Lukáčová, Edgars Paegle, Pavel Arsenyan, Miroslav Chovanec
Resveratrol is a natural (poly)phenol primarily found in plants protecting them against pathogens, as well as harmful effects of physical and chemical agents. In higher eukaryotic cells and organisms, this compound displays a remarkable range of biological activities, such as anti-oxidant, anti-inflammatory, anti-cancer, anti-aging, cardio- and neuro-protective properties. Here, biological activities of synthetic selenium-containing derivatives of resveratrol-benzo[ b ]selenophenes-have been studied in lower eukaryotes Saccharomyces cerevisiae ...
February 24, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Hao Yu, Jian-Ling Du
Dioscorea nipponica, a famous traditional Chinese medicine, belongs to the Dioscoreaceae family and has been widely distributed in the north, northeast and Qinghai regions of China. With its root and rhizome as an important herb material, it has been applied in China for several thousand years. Traditional Chinese medicine reported that this plant had been used for relieving cough and asthma, eliminating rheumatic aches, alleviating pain and improving blood circulation. Modern pharmacology studies have confirmed that saponins, the major active compounds in this herb, have shown various pharmacological actions including anti-tumor, anti-inflammatory,lipid-lowering, anti-fungal and anti-virus activities...
December 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
Malgorzata Anna Dawgul, Daria Grzywacz, Beata Liberek, Wojciech Kamysz, Henryk Myszka
BACKGROUND: Candida albicans belongs to the most common fungal pathogens in humans, but recently an increased proliferation of strains called non-albicans Candida has been report-ed. Species belonging to this group are often characterised by a reduced susceptibility to anti-fungal agents. OBJECTIVE: In view of the emergence of non-albicans Candida and their resistance to available antifungals, an attempt has been made to develop novel effective agents. Biological activities of the N,N-dialkyl diosgenyl glycosides, which were previously synthesized, were determined...
February 26, 2018: Medicinal Chemistry
Ke Chen, Liang Cheng, Weikun Qian, Zhengdong Jiang, Liankang Sun, Yanfei Zhao, Yongsheng Zhou, Lizhi Zhao, Pengli Wang, Wanxing Duan, Qingyong Ma, Wei Yang
Pancreatic cancer is the fourth leading cause of cancer-associated mortality worldwide, with an overall 5-year survival rate <8%. We studied the therapeutic effect of itraconazole (ITZ), a commonly used broad-spectrum anti-fungal agent, in the treatment of pancreatic cancer, and to reveal the underlying anticancer mechanisms. Effects of ITZ on cell proliferation, apoptosis, invasion and migration were observed by MTT assays and colony formation assays, flow cytometry, wound scratch assays and transwell assays, respectively...
February 26, 2018: Oncology Reports
A R Khosravi, A Sharifzadeh, D Nikaein, Z Almaie, H Gandomi Nasrabadi
Systemic candidiasis has become an emerging fungal infection in recent years. Anti-Candida resistance to conventional antifungal agents has subsequently increased. This study reported the chemical composition, antioxidant and anti-Candida activity of Origanum majorana, Artemisia dracunculus, Cymbopogon citrate, Cinnamomum verum and Caryophyllus aromaticus essential oils. Different Candida species, from urine tracts of hospitalized patients, were included to be challenged with understudied essential oils. Chemical compositions were determined using gas chromatography/mass spectroscopy (GC/MS) analysis and antioxidant activity was measured using DDPH assay...
February 21, 2018: Journal de Mycologie Médicale
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