Search results for "MINT"

Biomimetic diels–alder cyclizations for the construction of the brevianamide, paraherquamide, sclerotamide, asperparaline and VM55599 ring systems

1998

Abstract A potentially bio-mimetic Diels–Alder cyclization to construct the bicyclo[2.2.2] ring system common to the paraherquamides, marcfortines, sclerotamides, brevianamides, VM55599, and asperparaline is reported. Epi-deoxybrevianamide E (22) is converted into the corresponding lactim ether (23) and then oxidized with DDQ to provide an azadiene (24) which is tautomerized in the presence of base to azadiene 25 which, spontaneously cyclizes to give a 2:1 mixture of cycloadducts 26 and 27. These cycloadducts are each in turn, converted into d , l -C-19-epi-brevianamide A (20) and d , l -brevianamide B (6). The stereochemical implications of the [4+2] cycloaddition is discussed in the conte…

The transcriptome of Echinostoma caproni adults: further characterization of the secretome and identification of new potential drug targets.

2013

Abstract Echinostomes are cosmopolitan parasites that infect a large number of different warm-blooded hosts, both in nature and in the laboratory. They also constitute an important group of food-borne trematodes of public health importance mainly in Southeast Asia and the Far East. In addition, echinostomes are an ideal model to study several aspects of intestinal helminth biology, since they present a number of advantages. For example, echinostomes are large worms whose life cycle is relatively easy to maintain in the laboratory. Recently, several studies documented their great value in the study of intestinal helminth–vertebrate host relationship. Detailed knowledge of their genome, trans…

Albendazole in the treatment of hydatid disease: more than a hope.

1987

Atom, atom-type and total molecular linear indices as a promising approach for bioorganic and medicinal chemistry: theoretical and experimental asses…

2004

Abstract Helminth infections are a medical problem in the world nowadays. In this paper a novel atom-level chemical descriptor has been applied to estimate the anthelmintic activity. Total and local linear indices and linear discriminant analysis were used to obtain a quantitative model that discriminates between anthelmintic and non-anthelmintic drug-like compounds. The discriminant model has an accuracy of 90.11% in the training set, with a high Matthews’ correlation coefficient (MCC = 0.80). To assess the robustness and predictive power of the obtained model, internal (leave-n-out) and external validation process was performed. The QSAR model correctly classified 88.55% of compounds in t…

Sindrome nefrosica e sepsi da Gram negativi in corso di strongiloidiasi: considerazioni su un caso in immigrato imunocompetente

2007

Strongyloidiasis is caused by a small intestinal nematode with a complex life cycle. In Italy the infection is endemic in rural areas of the Po Valley. The clinical syndrome of S. stercoralis encompasses a broad spectrum of symptoms and signs and, in the immunocompromised host, larvae can migrate to different organs and tissues. Also immune response seems to play a role in the pathogenesis of the disease. We report a case of strongyloidiasis complicated by Gram-negative sepsis and nephrotic syndrome in an immigrant from South America with a normal immune response. Whereas sepsis cleared up quickly, parasitic clearance was obtained only after treatment with ivermectin and nephrotic syndrome …

Protective immunity against Echinostoma caproni in rats is induced by Syphacia muris infection.

2012

Syphacia muris (Nematoda: Oxyuridae) is a ubiquitous nematode that commonly infects rats in the laboratory and can interfere with the development of unrelated biological assays. In this context, we analysed the effect of a patent S. muris infection in Wistar rats on a superimposed infection with the intestinal trematode, Echinostoma caproni (Trematoda: Echinostomatidae). The results indicate that in the rats, infection with S. muris induces an immunity against a subsequent infection with E. caproni, although each parasite occupies different niches in the host. Echinostoma caproni worm recovery was significantly decreased in the rats primarily infected with S. muris and, at 3 and 4 weeks pos…

La serie monetal ‘Bes/palmera’. Una pseudo-ceca en la Hispania Ulterior

2018

This paper aims at studying an unknown coinage from the Iberian Peninsula depicting the Phoenician god Bes on the obverse and a palm tree on the reverse. Due to their imitative characteristics, these coins are attributed to a pseudo-mint located in Hispania Ulterior in the 1st century BC in relation with a dearth of cash in some areas of actual Andalusia. With parallels to the phenomenon of the pseudo-mint of Ebusus, settled in Pompeii, new hypotheses are suggested as regards the situation in Hispania Ulterior, where all the finds originate. The circulation of Ebusian coinage in Campania led to its imitation in Pompeii. We conclude that a similar phenomenon occurred here, although such an a…

Anisakid larvae in the musculature of the Argentinean hake, Merluccius hubbsi

2000

We report the infection levels of third-stage anisakid larva in the muscle of the Argentinean hake, Merluccius hubbsi, in relation to fish size and location in the musculature. The musculature of 42 hake was separated into hypaxial (ventral) and epiaxial (dorsal) parts and surveyed for nematode larvae. Two anisakid species were detected: Anisakis sp. (prevalence, 52.4%; mean +/- SD abundance, 1.2 +/- 1.7) and Pseudoterranova sp. (prevalence, 9.5%; mean +/- SD abundance, 0.2 +/- 0.7). Since the fish were gutted after capture, the occurrence of anisakids in the flesh indicates that the worms had migrated into the muscle before capture. The number of Anisakis sp. in muscle was not correlated w…

Massadatan käyttö asiakasanalytiikassa : case Jyväskylän Energia

2017

Massadata on suuresti puhuttava lisäarvon luomisen lähde niin tieteellisille yhteisöille kuin yrityksillekin. Massadatan käsite elää kehittyvän teknologian mukana, mutta tavallisimmillaan sitä voi kuvata suurena määränä dataa, joka on monimuotoista ja kasvaa suurella nopeudella. Massadata mahdollistaa paljon liiketoiminnassa hyödynnettävässä analytiikassa, kuten liiketoimintatiedon hallinnan ja analytiikan prosesseissa sekä asiakasanalytiikassa. Asiakasanalytiikassa massadata mahdollistaa syvällisemmän asiakasymmärryksen saavuttamisen datasta ja sen hyödyntämisen asiakassuhdehallinnasta aina merkityksellisemmän asiakassegmentoinnin tekemiseen. Tutkimuksessa käsitellään ensin massadataa sen …

Predicting hospital associated disability from imbalanced data using supervised learning.

2019

Hospitalization of elderly patients can lead to serious adverse effects on their functional capability. Identifying the underlying factors leading to such adverse effects is an active area of medical research. The purpose of the current paper is to show the potential of artificial intelligence in the form of machine learning to complement the existing medical research. This is accomplished by studying the outcome of hospitalization of elderly patients as a supervised learning task. A rich set of features characterizing the medical and social situation of elderly patients is leveraged and using confusion matrices, association rule mining, and two different classes of supervised learning algo…