abstract：:Cercariae of Schistosoma mansoni produce a wide variety of eicosanoids when stimulated by 3.3 mM linoleate. High-performance liquid chromatography indicated that 10(-5) M esculetin dramatically decreased eicosanoid production by cercariae. Ibuprofen (10(-4) M) also decreased eicosanoid production, but to a lesser exte...

journal_title：Experimental parasitology

authors： Salafsky B,Fusco AC

更新日期：1985-08-01 00:00:00

abstract：:Aedes aegypti mosquitoes salivate during intradermal probing of vertebrate prey before ingesting blood (Griffiths and Gordon 1952). Nonsalivating mosquitoes locate blood more slowly; this difference was ascribed to an anti-platelet activity found in the mosquito's saliva (Ribeiro et al. 1984). Mosquitoes infected with...

journal_title：Experimental parasitology

authors： Ribeiro JM,Rossignol PA,Spielman A

更新日期：1985-08-01 00:00:00

abstract：:About 200 clinically used amphiphilic cationic drugs have been shown to be active in vitro against Trypanosoma cruzi at concentrations of less than or equal to 1 mM. Activity against epimastigote and trypomastigote forms was similar, and in both cases the most potent drugs were litracene, maprotiline, thioproperazine,...

journal_title：Experimental parasitology

authors： Hammond DJ,Hogg J,Gutteridge WE

更新日期：1985-08-01 00:00:00

abstract：:Isocitrate lyase (EC 4.1.3.1) from mixed larval populations of Caenorhabditis elegans was stabilized in crude extracts by centrifugation over a 0.2-0.6 M sucrose gradient for 2.5 hr in a vertical rotor (VTi 50) at 210,000g. The peak fractions from this sucrose gradient showed a half-life of 33 hr at 30 C and 225 hr at...

journal_title：Experimental parasitology

authors： Jameel S,McFadden BA

更新日期：1985-06-01 00:00:00

abstract：:A comparative study of cell surface characteristics of pathogenic and nonpathogenic promastigotes of Leishmania braziliensis, NR and LBY strains, respectively, was carried out by means of concanavalin A agglutination and labeling with concanavalin A-fluorescein isothiocyanate, concanavalin A-ferritin, and cationized f...

journal_title：Experimental parasitology

authors： Ayesta C,Argüello C,Hernández AG

更新日期：1985-04-01 00:00:00

abstract：:Guinea pig recipients of anti-tick immune serum or immune peritoneal exudate cells expressed 25 and 30% tick rejection, respectively, when challenged with Amblyomma americanum larval ticks. Previous studies have shown that IgG1 antibodies are responsible for the ability of immune serum to transfer resistance to ticks ...

journal_title：Experimental parasitology

authors： Brown SJ,Askenase PW

更新日期：1985-04-01 00:00:00

abstract：:Treatment with mannosidase or sialidase completely inhibited chemotactic responses of Caenorhabditis elegans wild type, C. elegans mutants CB1377 (daf-6)X and CB1379 (che-3)I, and Panagrellus redivivus to a source of attractants. Trypsin (EC3.4.21.4) caused a partial reduction in the level of chemoresponse. Normal che...

journal_title：Experimental parasitology

authors： Jansson HB,Jeyaprakash A,Damon RA Jr,Zuckerman BM

更新日期：1984-12-01 00:00:00

abstract：:Schistosoma mansoni cercariae are stimulated by 2-tetradecenoic acid (TDA) to penetrate agar substrates. TDA simultaneously causes tegumental transformation similar to that seen when cercariae transform to schistosomula, reduces the Cercarienhüllen reaction in immune human serum, and reduces larval tolerance to water....

journal_title：Experimental parasitology

authors： Haas W

更新日期：1984-10-01 00:00:00

abstract：:The biochemical and morphological events which accompany lysis of Trypanosoma brucei by normal human serum have been described. The prelytic events include loss of infectivity and rapid cation shifts across the cell membrane. This is followed by cell swelling, fraying of the surface coat of the cell, loss of intracell...

journal_title：Experimental parasitology

authors： Rifkin MR

更新日期：1984-08-01 00:00:00

abstract：:Hyperinfective strongyloidiasis involving the threadworm , Strongyloides stercoralis, is well known in humans and primates. Although this nematode also frequently parasitizes dogs, canine hyperinfective strongyloidiasis has not been reported. To determine whether a fulminant pattern of nematode development can occur i...

journal_title：Experimental parasitology

authors： Schad GA,Hellman ME,Muncey DW

更新日期：1984-06-01 00:00:00

abstract：:Many methods have been proposed for removing contaminating host cells from mouse peritoneal exudates infected with Toxoplasma gondii tachyzoites. Of these, eight established methods were compared. They were density gradients, sonication and trypsin digestion, differential centrifugation, haemolysin digestion, filtrati...

journal_title：Experimental parasitology

authors： Dempster RP

更新日期：1984-04-01 00:00:00

abstract：:The asexual development cycle of Plasmodium falciparum, a malarial parasite of humans, has been synchronized in culture by treating ring-stage parasites with aphidicolin, an inhibitor of DNA synthesis. Optimization of both the concentration of drug added to ring stage containing red blood cells and the duration of exp...

journal_title：Experimental parasitology

authors： Inselburg J,Banyal HS

更新日期：1984-02-01 00:00:00

abstract：:In an attempt to identify the tissue sources of biochemically purified antigenic fractions of Fasciola hepatica and Schistosoma mansoni, antisera were tested against plastic-embedded sections of worms of various ages by an indirect fluorescent-antibody-labeling technique. Antibodies prepared against antigens purified ...

journal_title：Experimental parasitology

authors： Hanna RE,Hillyer GV

更新日期：1984-02-01 00:00:00

abstract：:Schistosoma mansoni sporocysts originally derived from monomiracidially infected Biomphalaria glabrata snails were serially transplanted into the cephalopedal sinus of anesthetized snails by the microsurgical implantation of fragments of parasitized hepatopancreas and ovotestis. Three to six passages each of five male...

journal_title：Experimental parasitology

authors： Cohen LM,Eveland LK

更新日期：1984-02-01 00:00:00

abstract：:Cutaneous lesions elicited in guinea pigs by primary and secondary feeding populations of the argasid tick, Ornithodorus tartakovskyi, were analyzed by light and electron microscopy. Small clusters of basophils appeared at primary bite sites within 24 hr of tick attachment, and by 72 hr constituted approximately 11% o...

journal_title：Experimental parasitology

authors： McLaren DJ,Worms MJ,Brown SJ,Askenase PW

更新日期：1983-10-01 00:00:00

abstract：:Chemoattraction studies were done with Schistosoma mansoni adults from mice. To test for attraction or repulsion, some worm pairs were separated mechanically and the individuals placed in polycarbonate chambers. Experiments were done at 37 C and chambers contained dialysis tube chimneys. In all cases, heterosexual att...

journal_title：Experimental parasitology

authors： Eveland LK,Fried B,Cohen LM

更新日期：1983-10-01 00:00:00

abstract：:Trypanosoma cruzi epimastigotes cultured in vitro were disrupted by successive freezing and thawing and subsequent sonication. The total homogenate was fractionated by differential centrifugation to obtain an enriched plasma membrane fraction. The proteins of subcellular parasite fractions were labeled with 131I and t...

journal_title：Experimental parasitology

authors： Calderon RO,de Fabro SP

更新日期：1983-10-01 00:00:00

abstract：:The release of beta-glucuronidase and lysozyme from human polymorphonuclear leukocytes (PMN) engaged in phagocytosis and lysis of Trypanosoma cruzi epimastigotes was studied in the presence or absence of chagasic serum. Lysosomal enzyme release was enhanced when parasites were sensitized with serum from a chronic Chag...

journal_title：Experimental parasitology

authors： de Titto EH,Cardoni RL

更新日期：1983-10-01 00:00:00

abstract：:Two different diets for the host and three drug dosage regimens were used to select lines resistant to sulfadoxine and pyrimethamine from the parent strain of the rodent malaria parasite Plasmodium berghei [the N (K173) strain]. A higher yield of resistance was obtained when a high parasitemia was present at the begin...

journal_title：Experimental parasitology

authors： Merkli B,Richle R

更新日期：1983-06-01 00:00:00

abstract：:Exponential weight gain equations and growth rates were determined during larval development of Brachymeria lasus reared aseptically on chemically defined media with varying amino acid and glucose levels. The rate of weight gain increased from 0 to 2% dietary glucose and mean growth rate increased from 160 to 260 micr...

journal_title：Experimental parasitology

authors： Thompson SN

更新日期：1983-06-01 00:00:00

abstract：:Two strains of mice which share identical H-2 genes but differ in their genetic backgrounds were compared for their ability to resist infection with Trichinella spiralis. The two strains of mice, C3HeB/FeJ and AKR/J, share the H-2k haplotype which is associated with susceptibility to primary infection with T. spiralis...

journal_title：Experimental parasitology

authors： Wassom DL,Brooks BO,Cypess RH,David CS

更新日期：1983-04-01 00:00:00

abstract：:The ring stages of Plasmodium falciparum within red blood cells cultured with complete medium stop growing when transferred to a basic medium containing RPMI plus fatty acid-free bovine serum albumin and dialyzable factors from human serum. Growth and multiplication can be partially restored by the addition of lipopro...

journal_title：Experimental parasitology

authors： Nivet C,Guillotte M,Pereira da Silva L

更新日期：1983-02-01 00:00:00