Results 101 to 110 of about 244 (147)

Immunohistochemical investigation of the pituitary of the sturgeon (Acipenser baeri, Chondrostei)

Fish Physiology and Biochemistry, 1988
An immunohistochemical study of the sturgeon (Acipenser baeri) pituitary was undertaken using antisera directed against hormones from various classes of vertebrates, including the only pituitary hormone available from sturgeon, gonadotrophin. A positive reaction was obtained after application of antisera towards the following hormones 1-24 synthetic ...
C, Pelissero, J, Nunez-Rodriguez, F, Le Menn, O, Kah   +3 more
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Characterization of serum immunoglobulins in a chondrostean fish, Acipenser baeri

Developmental & Comparative Immunology, 1993
The euglobulin fraction of sturgeon (Acipenser baeri) serum was analyzed using electrophoretic and immunoblotting techniques. The major protein of this fraction is an IgM-like molecule composed of equimolar 70-kDa glycosylated H chains and 26-30 kDa L chains. In the absence of a reducing agent, the L and H polypeptides may form (mu 2L2)n high molecular
S, Partula, J, Charlemagne
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Olfactory projections in a chondrostean fish,Acipenser baeri: An experimental study

The Journal of Comparative Neurology, 2000
The presence of extrabulbar primary olfactory projections has been well established in teleosts. In order to investigate the phylogeny of these projections and to compare their targets with those of the secondary olfactory projections, the connections of the olfactory epithelium and olfactory bulb were studied by means of tract-tracing methods in a ...
G, Huesa, R, Anadón, J, Yáñez
openaire   +2 more sources

Identification, tissue distribution, and anorexigenic effect of amylin in Siberian sturgeon (Acipenser baeri)

Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2022
Amylin is a 37-amino acid polypeptide that has been found to be involved in feeding regulation in some mammals, birds, and goldfish. We cloned amylin of Siberian sturgeon and detected its distribution pattern in 15 tissues. The expression levels in the periprandial period (pre-and post-feeding), the changes in the food intake, and the expression levels
Mei, Wang, Shaoqi, Xu, Ya, Li, Ni, Tang, Hu, Chen, Shupeng, Zhang, Yanling, Liu, Jun, Wang, Defang, Chen, Xin, Zhang, Zhiqiong, Li   +10 more
openaire   +2 more sources

Respiratory responses to progressive ambient hypoxia in the sturgeon, Acipenser baeri

Respiration Physiology, 1993
Changes in respiratory and acid-base variables were studied in siberian sturgeon, Acipenser baeri, during progressive deep hypoxia followed by recovery under normoxic conditions. During hypoxia, both ventilatory frequency and amplitude increased and this sturgeon was able to maintain standard oxygen consumption down to a low critical level of ambient ...
Nonnotte, G., Maxime, V., Truchot, J., Williot, Patrick, Peyraud, C.   +4 more
openaire   +3 more sources

The estrogenic activity of certain phytoestrogens in the siberian sturgeon Acipenser baeri

The Journal of Steroid Biochemistry and Molecular Biology, 1991
Various phytoestrogens such as formononetin, daidzein, genistein and equol were synthesized. Their purity was assessed by various analytical techniques including melting point determination, thin-layer chromatography (TLC), infra-red spectra (i.r.
C, Pelissero, B, Bennetau, P, Babin, F, Le Menn, J, Dunogues   +4 more
openaire   +2 more sources

Variability of the immunoglobulin light chain in the Siberian sturgeon, Acipenser baeri

Developmental & Comparative Immunology, 1999
All sturgeon VL segments isolated in this study belong to a single family, VLI, which can be divided into two subfamilies. Of the 79 cDNA clones isolated, 76 belong to the larger subfamily, VLIa, and only 3 clones constitute the smaller subfamily, VLIb.
M L, Lundqvist, L, Pilström
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Ig light chain gene in the Siberian sturgeon (Acipenser baeri)

The Journal of Immunology, 1996
Abstract Elasmobranch and teleost fish have their Ig light (L) chain loci organized in multiple clusters (VL-JL-CL). The VL segments of teleosts are in opposite transcriptional orientation to the CL genes, suggesting that in teleosts and elasmobranchs there may have been separate evolutionary events leading to this organization.
M, Lundqvist, E, Bengtén, S, Strömberg, L, Pilström   +3 more
openaire   +2 more sources

Characterization of beta2-microglobulin in a primitive fish, the Siberian sturgeon ( Acipenser baeri )

Immunogenetics, 1999
Characterization of beta2-microglobulin in a primitive fish, the Siberian sturgeon (Acipenser baeri)
Lundqvist, M.L., Appelkvist, P., Hermsen, T., Pilstrom, P., Stet, R.J.M.   +4 more
openaire   +3 more sources

Ig heavy chain of the sturgeon Acipenser baeri : cDNA sequence and diversity

Immunogenetics, 1998
To investigate the gene organization of the IGH locus, and the VH diversity of the Siberian sturgeon, a cDNA library was constructed and screened with VH-specific probes from two holostean fish. Isolated clones were analyzed and domain-specific probes used in rescreening of the library, Southern blot analysis, and northern blots.
M L, Lundqvist, S, Strömberg, L, Pilström   +2 more
openaire   +2 more sources