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  1. Article ; Online: C

    de Freitas, Danielle Storino / Lopes, Guilherme Antonio de Gouvêa / Nascimento, Barbara Rodrigues / Madureira, Ana Paula / Campos-Junior, Paulo Henrique Almeida

    Animal reproduction

    2023  Volume 20, Issue 3, Page(s) e20220124

    Abstract: Fetal programming suggests that maternal stimulation and nutrition during the period of fetal development can program the progeny. Conjugated linoleic acid (CLA), an isomer of linoleic acid, has been characterized in several aspects, but few studies have ...

    Abstract Fetal programming suggests that maternal stimulation and nutrition during the period of fetal development can program the progeny. Conjugated linoleic acid (CLA), an isomer of linoleic acid, has been characterized in several aspects, but few studies have been performed on its involvement in reproduction and fetal programming. The aim of this study was to evaluate the F1, F2 and F3 progeny of female mice supplemented with CLA during the pregestational and gestational periods with respect to biometric and reproductive parameters, as well as ovarian morphophysiology. The F1 progeny of mothers supplemented with CLA exhibited stable weight gain, while the F2 progeny showed no effects (P=0.0187 and P=0.0245, respectively). A reduction in Lee's Index was observed in both generations at the second post-weaning evaluation week in the animals treated with CLA (P=0.0100 and P=0.0078, respectively). The F2 generation showed an increase in the anogenital index in both sexes of the animals treated with CLA (P= 0.0114 and P<0.0001, female and male respectively). CLA administration to mothers did not affect any of the following in their progeny: ovarian follicle mobilization (P>0.05), follicle number (P>0.05) and the integrated density of the lipid content of oocytes included in antral follicles (P>0.05). This study evaluated the use of CLA in mothers and found that it did not affect the progeny regarding murine reproductive performance, suggesting that this supplement can be used safely.
    Language English
    Publishing date 2023-09-18
    Publishing country Brazil
    Document type Journal Article
    ZDB-ID 2227229-X
    ISSN 1984-3143 ; 1984-3143
    ISSN (online) 1984-3143
    ISSN 1984-3143
    DOI 10.1590/1984-3143-AR2022-0124
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Ectopic autologous transplantation of ovarian tissue as a feasible technique to assess ovarian morphophysiology.

    Nascimento, Bárbara Rodrigues / Lopes, Guilherme Antonio de Gouvêa / Freitas, Danielle Storino de / Campos-Junior, Paulo Henrique Almeida

    Zygote (Cambridge, England)

    2021  Volume 30, Issue 3, Page(s) 416–418

    Abstract: The cryopreservation of murine ovarian tissue and its transplantation can be a promising technique for the preservation of fertility and an alternative for the future reconstitution of scientific valuable strains of mice. Accordingly, the aim of this ... ...

    Abstract The cryopreservation of murine ovarian tissue and its transplantation can be a promising technique for the preservation of fertility and an alternative for the future reconstitution of scientific valuable strains of mice. Accordingly, the aim of this study was to describe the entire surgical procedure for ovariectomy and dorsal subcutaneous autotransplantation in mice, and also some data about the efficiency of this procedure. Female C57Bl/6J mice (n = 18) were anaesthetised and bilaterally ovariectomized. After surgery, ovaries were autotransplanted in small subcutaneous pouches in the dorsal region of the forelimbs. The animals were inspected daily and, 23 days after transplantation, euthanasia and recovery of ovarian tissues were performed. Postoperative recovery, oestrous cyclicity, and folliculogenesis progression were evaluated. At 23 days after transplantation, the recovery of the ovaries was feasible, all classes (primordial to antral) of follicles were observed. Additionally, satisfactory efficiency rates were obtained, with 100% of anaesthesia survival rate, survival, graft recovery, folliculogenesis progression and oestrous cyclicity. In general, this short article describes ovarian ectopic autologous transplantation as an effective technique for maintaining rodent oogenesis and endocrine ovarian function. Even more broadly, we can still assume that the application of this technique may reduce the number of breeding matrices and experimental animals in the near future.
    MeSH term(s) Animals ; Cryopreservation/methods ; Female ; Fertility ; Mice ; Oogenesis ; Ovary/physiology ; Transplantation, Autologous
    Language English
    Publishing date 2021-09-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 1166294-3
    ISSN 1469-8730 ; 0967-1994
    ISSN (online) 1469-8730
    ISSN 0967-1994
    DOI 10.1017/S0967199421000757
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effects of

    Freitas, Danielle Storino de / Lopes, Guilherme Antonio de Gouvêa / Nascimento, Barbara Rodrigues / Magalhães, Breno Augusto / Madureira, Ana Paula / Campos-Junior, Paulo Henrique Almeida

    Zygote (Cambridge, England)

    2022  Volume 30, Issue 6, Page(s) 863–871

    Abstract: Conjugated linoleic acid (CLA) is a mixture of positional isomers of linoleic acid found in ruminant products and meat. The diet supplementing with CLA is an emerging area, requiring studies to elucidate its effects on animals and human reproduction, as ... ...

    Abstract Conjugated linoleic acid (CLA) is a mixture of positional isomers of linoleic acid found in ruminant products and meat. The diet supplementing with CLA is an emerging area, requiring studies to elucidate its effects on animals and human reproduction, as well as its side effects. Therefore, the aim of this study was to evaluate the effects of CLA gastric administration, during the pregestational and gestational period in biometric and reproductive parameters, as well as in ovarian morphophysiology. Animals were distributed in three groups: (1) control (
    MeSH term(s) Pregnancy ; Humans ; Female ; Animals ; Mice ; Linoleic Acids, Conjugated/pharmacology ; Linoleic Acids, Conjugated/metabolism ; Reproduction ; Dietary Supplements ; Fish Oils/pharmacology ; Linoleic Acid
    Chemical Substances Linoleic Acids, Conjugated ; Fish Oils ; Linoleic Acid (9KJL21T0QJ)
    Language English
    Publishing date 2022-09-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1166294-3
    ISSN 1469-8730 ; 0967-1994
    ISSN (online) 1469-8730
    ISSN 0967-1994
    DOI 10.1017/S0967199422000405
    Database MEDical Literature Analysis and Retrieval System OnLINE

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