Wyniki wyszukiwania

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Effects of deltamethrin and endosulfan on the population growth of Brachionus calyciflorus at different algal (Scenedesmus obliquus) densities

100%

Xu X.-P., Xi Y.-L., Li J.-Y.

Polish Journal of Environmental Studies

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2019

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tom 28

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nr 1

The chronic effects of deltamethrin and endosulfan on non-target organisms have been investigated several times. However, most of these studies were only performed under certain environmental conditions and ignored the effects of food density. In the present study, the effects of deltamethrin (0.3, 0.6, 1.2, and 2.4 mg/L) and endosulfan (0.27, 0.54, 1.08, and 2.16 mg/L) on the population growth of the rotifer Brachionus calyciflorus were investigated at two densities of Scenedesmus obliquus (1.0×10⁶ and 3.0×10⁶ cells/mL). Compared with the blank control, high levels of deltamethrin and endosulfan significantly decreased the population growth rate and the maximum population density of B. calyciflorus, suggesting that these two chemicals are toxic to rotifers. In comparison to high algal density, the toxic effects of 2.4 mg/L deltamethrin and 2.16 mg/L endosulfan on rotifers were much more obvious at low algal density. The present results show the important role of algal density on influencing the toxicities of deltamethrin and endosulfan to rotifers.

2

Association analysis of thyroglobin gene variants with carcass and meat quality traits in beef cattle

64%

Gan Q. F., Zhang L. P., Li J. Y., Hou G. Y., Li H. D., Gao X., Ren H. Y., Chen J. B., Xu S. Z.

Journal of Applied Genetics

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2008

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tom 49

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nr 3

251-255

Thyroid hormones play an important role in regulating the metabolism and can affect the homeostasis of fat deposition. The gene encoding thyroglobulin (TG), producing the precursor for thyroid hormones, has been proposed as a positional and functional candidate gene for a QTL with an effect on fat deposition. In the present study, we identified 6 novel SNPs at the 3' flanking region of the TG gene. The SNP marker association analysis indicated that the SNP markers G133C, G156A, C220T and A506C were significantly associated with marbling score (P<0.05, N=271). Animals with the new homozygote genotype had higher marbling scores than those with the other genotypes. Besides, the linkage disequilibrium analysis indicated that these 4 SNPs were completely linked (r² -1). Results of this study suggest that the TG-gene-specific SNP may be a useful marker for meat quality traits in future marker-assisted selection programmes in beef cattle.

3

Autotoxicity of the soil of consecutively cultured tea plantations on tea (Camellia sinensis) seedlings

64%

Ye J.-H., Wang H.-B., Yang X.-J., Zhang Q., Li J.-Y., Jia X.-L., Kong X.-H., He H. B.

Acta Physiologiae Plantarum

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2016

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tom 38

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nr 08

4

Analysis of the antibodies anti-Toxoplasma gondii by ELISA based on two diagnostic antigens: rSAG1 and rBAG1

64%

Liu M., Wang T., Li H., Li J.-Y., Zhong H., Tan C.-Z., Huang D.-C., Zhao L., Chen X.-G., Lun Z.-R.

Acta Parasitologica

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2011

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tom 56

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nr 4

Schizophrenia is a serious neuropsychiatric disease of uncertain etiology. Previous studies have demonstrated that antibodies to Toxoplasma gondii infection are associated with an increased risk of schizophrenia. The objective of this study was to analyze anti-T. gondii antibodies in 477 Chinese schizophrenia patients using an enzyme-linked immunosorbent assay (ELISA) based on recombinant surface antigen 1 (rSAG1), recombinant bradyzoite antigen 1 (rBAG1) and the soluble tachyzoite antigens (STAg) of T. gondii RH strain. Results showed that among the sero-positives (IgG and/or IgM) for T. gondii infection examined in schizophrenia patients, sero-positive samples for rSAG1, rBAG1 and STAg were 20.5% (98/477), 20.5% (98/477) and 23.5% (112/477) respectively, while compared to 210 blood donors, sero-positive (IgG and/or IgM) samples for these antigens (rSAG1, rBAG1 and STAg) were only 5.7% (12/210), 6.2% (13/210) and 5.7% (12/210), respectively. Furthermore, when IgG antibody reaction in the schizophrenia sera was compared with the rBAG1 and rSAG1, results demonstrated that beside the cases which can be detected by both rSAG1 and rBAG1, some sero-positive for T. gondii in schizophrenia sera can only be detected either by rSAG1 or rBAG1. This phenomenon was also observed in the detection of IgM with rSAG1 and rBAG1. 5.9% (28/477) of cases of schizophrenia which are positive for IgG or IgM by rSAG1 are negative for STAg, while 9.2% (44/477) of the schizophrenia cases which are positive for IgG or IgM by rBAG1 are negative for STAg. Although STAg can also be used to diagnose T. gondii infection from schizophrenia patients, it may not actually indicate the infection as some positive samples may be mistakenly considered to be negative. In conclusion, our results demonstrate that the sero-positive rate for T. gondii in the Chinese schizophrenia patients was higher than blood donors. More importantly, our results provide evidence that the combination of rSAG1 and rBAG1 antigens in the diagnosis of T. gondii infection could closely reflect the actual infection of this parasite in schizophrenia patients.

Ograniczanie wyników

Effects of deltamethrin and endosulfan on the population growth of Brachionus calyciflorus at different algal (Scenedesmus obliquus) densities

Association analysis of thyroglobin gene variants with carcass and meat quality traits in beef cattle

Autotoxicity of the soil of consecutively cultured tea plantations on tea (Camellia sinensis) seedlings

Analysis of the antibodies anti-Toxoplasma gondii by ELISA based on two diagnostic antigens: rSAG1 and rBAG1