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Home / Journals / BIOCELL / Vol.28, No.1, 2004
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  • Open AccessOpen Access

    REVIEW

    Review : Uterine mast cells: A new hypothesis to understand how we are born

    M. ISOLDE RUDOLPH1, I. GINA ROJAS2, ALICIA B. PENISSI3
    BIOCELL, Vol.28, No.1, pp. 1-11, 2004, DOI:10.32604/biocell.2004.28.001
    Abstract Birth is the result of complex, well-defined, and coordinated events, that are tightly regulated by endocrine, nervous, and immune responses, and take place primarily in the female reproductive tract. Various mechanisms and mediators involved in pregnancy, labor, and delivery, are highly conserved among different mammalian species and mast cells emerge as potential and crucial participants in these processes, as it is discussed in this review. More >

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  • Open AccessOpen Access

    ARTICLE

    Genetic stability in rice micropropagation

    R. MEDINA, M. FALOCI, M.A. MARASSI, AND L.A. MROGINSKI.
    BIOCELL, Vol.28, No.1, pp. 13-20, 2004, DOI:10.32604/biocell.2004.28.013
    Abstract An efficient clonal propagation procedure for six rice varieties cultivated in Argentina was developed by using shoot tip cultures, and the genetic stability of the micropropagated plants was verified by isozyme analysis. One week old seedlings obtained on MS medium were sectioned and subcultured on MS medium (0.75% agar) supplemented with different combination and concentrations of cytokinins (BAP and KIN) and auxins (2,4-D and NAA). After four weeks of culture, multiple shoots were obtained. The best response was observed on MS supplemented with BAP 5 mg l-1. Shoot clumps were multiplied in MS liquid medium containing BAP 5 mg l-1.… More >

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  • Open AccessOpen Access

    ARTICLE

    Tissue alterations in the Guinea pig lateral prostate following antiandrogen flutamide therapy

    RENATO SIMÕES CORDEIRO*, WELLERSON RODRIGO SCARANO*, REJANE MAIRA GÓES**, SEBASTIÃO ROBERTO TABOGA**
    BIOCELL, Vol.28, No.1, pp. 21-30, 2004, DOI:10.32604/biocell.2004.28.021
    Abstract The flutamide antiandrogenic effects on the Guinea pig male prostate morphology in puberal, post-puberal and adult ages were evaluated in the present study. Daily-treated group animals received flutamide subcutaneous injection at a dose of 10 mg/Kg body weight for 10 days. The control group animals received a pharmacological vehicle under the same conditions. The lateral prostate was removed, fixed and processed for light and transmission electron microscopy. The results revealed an increase of the acinus diameter in the treated puberal animals and straitness in the stromal compartment around the acini. The epithelial cells exhibited cubic phenotype. In the post-puberal and… More >

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  • Open AccessOpen Access

    ARTICLE

    Bacteriostatic action of synthetic polyhydroxylated chalcones against Escherichia coli

    MARÍA DE LOS ANGELES ALVAREZ, VALERIA E. P. ZARELLI, NORA B.PAPPANO, NORA B. DEBATTISTA
    BIOCELL, Vol.28, No.1, pp. 31-34, 2004, DOI:10.32604/biocell.2004.28.031
    Abstract In previous work the bacteriostatic action of trihydroxylated chalcones against Staphylococcus aureus ATCC 25 923 was investigated. In this work the action of 2´, 4´, 2-(OH)3 -chalcone, 2´, 4´, 3-(OH)3- chalcone and 2´, 4´, 4-(OH)3 –chalcone against Escherichia coli ATCC 25 922 was evaluated. Growth kinetic curves of E.coli were made in nutritive broth added with increasing drug concentrations. The specific growth rates of the microorganisms were calculated by a kinetic turbidimetric method, which was previously probed and the minimal inhibitory concentrations (MIC´s) were evaluated by a mechanism of action proposed. The MICs of 2´, 4´, 3-(OH)3 -chalcone and 2´,… More >

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  • Open AccessOpen Access

    ARTICLE

    Influence of genotype and explant source on indirect organogenesis by in vitro culture of leaves of Melia azedarach L.

    S.K. VILA*, H.Y. REY, L.A. MROGINSKI
    BIOCELL, Vol.28, No.1, pp. 35-41, 2004, DOI:10.32604/biocell.2004.28.035
    Abstract In vitro regeneration of shoots from leaf explants of the Paradise tree (Melia azedarach L.) was studied. Three different portions (proximal portion, distal portion and rachis of the leaflets) of three developmental stages (folded, young still expanding and completely expanded) of leaves of 10 – 15 years old plants of seven genotypes were cultured on Murashige and Skoog (1962) medium (MS) supplemented with 1mg.l-1 benzylaminopurine (BAP) + 0.1mg.l-1 kinetin (KIN) + 3 mg.l-1 adenine sulphate (ADS).
    The rachis of the leaflets of the completely expanded leaves was found to be the most responsive tissue, in most of the genotypes… More >

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