Search results for "chino"

Helminth-Trematode: Echinostoma

2014

The term, echinostomes, includes those digeneans belonging to the family Echinostomatidae. Echinostomes are a rather heterogeneous group of cosmopolitan hermaphroditic digeneans that inhabit, as adults, the intestine of a great spectrum of vertebrate hosts, such as birds, mammals and, occasionally, reptiles and fishes. They can also parasitize humans causing the food-borne infection called echinostomiasis. The definitive hosts become infected after ingestion of the second intermediate host harboring the encysted metacercariae. Clinical symptoms of echinostomiasis include abdominal pain, violent watery diarrhea, and anorexia. The disease occurs focally and transmission is linked to fresh or …

Criteria for species determination in the 'revolutum' group of Echinostoma.

2004

Sexual segregation of Echinorhynchus borealis von Linstow, 1901 (Acanthocephala) in the gut of burbot (Lota lota Linnaeus)

2015

Helminths often occupy defined niches in the gut of their definitive hosts. In the dioecious acanthocephalans, adult males and females usually have similar gut distributions, but sexual site segregation has been reported in at least some species. We studied the intestinal distribution of the acanthocephalan Echinorhynchus borealis von Linstow, 1901 (syn. of E. cinctulus Porta, 1905) in its definitive host, burbot (Lota lota Linnaeus). Over 80% of female worms were found in the pyloric caeca, whereas the majority of males were in the anterior two-thirds of the intestine. This difference was relatively consistent between individual fish hosts. Worms from different parts of the gut did not dif…

A new neuraminic acid derivative and three types of glycopeptides isolated from the Cuvierian tubules of the sea cucumber Holothuria forskali

1973

The Cuvierian tubules of Holothuria forskali Della Chiaje, a sea cucumber found in the Adriatic Sea, were investigated with regard to their carbohydrate moieties. From a Pronase digest of these tubules three types of carbohydrate units were isolated and characterized. 1. A high-molecular-weight glycopeptide fraction was shown to contain sulphated polyfucose, galactosamine, a uronic acid and a previously unknown neuraminic acid derivative. The sulphate was shown by i.r. analysis to be present as an O-ester. The carbohydrate unit was linked O-glycosidically to threonine and serine residues in the polypeptide chain. The hitherto unknown neuraminic acid derivative (Hf-neuraminic acid) was resis…

Taxonomic Status of Neoechinorhynchus Agilis (Acanthocephala, Neoechinorhynchidae), with a Description of two New Species of the Genus from the Atlan…

2014

2 Section of Hydrobiont Diseases, Pacifi c Research. Fisheries Center, Shevchenko str., 4, Vladivostok, 690950 Russia Taxonomic Status of Neoechinorhynchus agilis (Acanthocephala, Neoechinorhynchidae), with a De- scription of Two New Species of the Genus from the Atlantic and Pacifi c Mullets (Teleostei, Mugili- dae). Tkach, Ie. V., Sarabeev, V. L., Shvetsova, L. S. — Th e wide variability in morphological features, geographical and host ranges of mullet acanthocephalan parasite Neoechinorhynchus agilis (Rudolphi, 1819), raises the question of taxonomic status of this species. Rudolphi's type and Yamagutis voucher specimens, as well as our own material from the WW Pacifi c and NE Atlantic r…

Naturally occurring hemolysins in the coelomic fluid of Holothuria polii delle chiaie (Echinodermata).

1979

Abstract The coelomic fluid of Holothuria polii D.Ch contains hemolytic activity against erythrocytes of several vertebrate species. The hemolytic potency depends upon calcium ion concentration and varies according to erythrocyte source and cell number in the reaction mixture. Absorption experiments with formalinized rabbit erythrocytes suggest that hemolytic activity is not specific. Its heat lability, water insolubility at low pH values, and sensitivity to proteolytic enzymes suggest that hemolytic activity resides in protein molecules. The activity, maximal in alkaline media, appears to depend up time and temperature.

Inhibitory activity of sphingomyelin on hemolytic activity of coelomic fluid of Holothuria polii (echinodermata)

1987

Abstract The hemolytic activity of coelomic fluid from Holothuria polii is specifically inhibited by sphingomyelin. This phospholipid is the constituent of the membrane which probably interacts with the hemolysin thereby leading to the lysis.

Expresión diferencial de proteínas en el íleon de ratón asociadas con el desarrollo de infecciones crónicas por Echinostoma caproni

2015

Entre las enfermedades parasitarias que afectan a la humanidad, las helmintiasis intestinales destacan por su gran morbilidad, ya que actualmente afectan a más de 2000 millones de personas y causan grandes pérdidas económicas relacionadas con la ganadería y la veterinaria. Echinostoma caproni es un trematodo intestinal que, por sus características, es utilizado en numerosos estudios como modelo experimental para determinar los factores por los que se resuelve una infección aguda o se desarrolla una infección crónica causada por helmintos intestinales. En este trabajo se analizó la expresión diferencial de proteínas durante una primoinfección, después de un tratamiento farmacológico y durant…

Il progetto d’indipendenza della Sicilia in Francesco e Gioacchino Ventura

2012

Studies on Holothuriapolii (echinodermata) coelomocyte lysate II. Isolation of coelomocyte hemolysins

1988

The lytic activity of the Holothuria polii coelomocyte lysate resides in two electrophoretically distinct hemolysins identified as He1 and He2. He1 represents the calcium dependent, heat-labile component whereas He2 is calcium independent and heat-stable. The two hemolysins share serological identity. Both hemolysins appear as single protein molecules of 80KDa molecular weight by SDS-PAGE and transblotting analysis under non-reducing conditions. However under reducing conditions, they are doublets of 76 and 80KDa molecular weight. The hypothesis that the two hemolysins could be isoforms is discussed.