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Effects of Echinostoma caproni miracidia dose on the neutral and polar lipids of Biomphalaria glabrata as determined by high-performance thin-layer chromatography

100%

Hunsberger A., Fried B., Sherma J.

Acta Parasitologica

2013

tom 58

nr 4

The effects of a 5 versus 25 miracidia exposure of Echinostoma caproni on the lipid composition of Biomphalaria glabrata was studied using high performance thin layer chromatography (HPTLC)-densitometry. A 50 miracidia dose was not used because such a high level of exposure caused severe snail mortality by 3 weeks post-exposure (PE). Lipids were determined in the digestive-gland gonad complex (DGG) of the exposed snails and in the uninfected matched controls at 2 and 4 weeks PE. Extraction of lipids from DGGs was carried out by the Folch method with chloroform-methanol (2:1), and extracts were analyzed on Analtech HPTLC-HLF pre-adsorbent silica gel plates with measurement of separated bands using a CAMAG Scanner 3. For neutral lipids the mobile phase was petroleum ether-diethyl ether-glacial acetic acid (80:20:1) and the detection reagent was 5% ethanolic phosphoric acid, and for polar lipids chloroform-methanol-deionized water (65:25:4) mobile phase and 10% cupric sulfate in 8% phosphoric acid detection reagent were used. No significant differences in the concentrations of free sterols, free fatty acids, triacylglycerols, phosphatidylcholine, and phosphatidylethanolamine were seen at 2 weeks PE in any of the groups. At 4 weeks PE, the free fatty acid concentration increased significantly in the snails exposed to 25 miracidia compared to that of the 5 miracidia/snail group or the controls. Elevation of the free fatty acid fraction in the high dose snail group suggested that some changes occurred in the lipid metabolism of the snails in that group as a function of miracidia dose.

Spectroscopic properties of selected fluorescence probes used for labelling of lymphocyte or blast cell membranes and plasma high density lipoproteins

67%

Michalak K., Sidorowicz A., Kuliszkiewicz-Janus M., Modrzycka T., Pola A.

Cellular and Molecular Biology Letters

1998

tom 03

nr 2

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Stimulation of arachidonic acid release from thyroid phospholipids

67%

Stelmach H., Jaroszewicz L.

Journal of Physiology and Pharmacology

1995

tom 46

nr 4

Ograniczanie wyników

1 Acta Parasitologica

1 Cellular and Molecular Biology Letters

1 Journal of Physiology and Pharmacology

1 Fried B.

1 Hunsberger A.

1 Jaroszewicz L.

1 Kuliszkiewicz-Janus M.

1 Michalak K.

1 Modrzycka T.

1 Pola A.

1 Sherma J.

1 Sidorowicz A.

1 Stelmach H.

1 2013

1 1998

1 1995

Wyniki wyszukiwania

Effects of Echinostoma caproni miracidia dose on the neutral and polar lipids of Biomphalaria glabrata as determined by high-performance thin-layer chromatography

Spectroscopic properties of selected fluorescence probes used for labelling of lymphocyte or blast cell membranes and plasma high density lipoproteins

Stimulation of arachidonic acid release from thyroid phospholipids