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  1. Article: Genes for anti-Müllerian hormone and androgen receptor are underexpressed in human cumulus cells surrounding morphologically highly graded oocytes.

    Dević Pavlić, Sanja / Tramišak Milaković, Tamara / Panić Horvat, Linda / Čavlović, Kristina / Vlašić, Hrvoje / Manestar, Miljenko / Smiljan Severinski, Neda / Radojčić Badovinac, Anđelka

    SAGE open medicine

    2019  Volume 7, Page(s) 2050312119865137

    Abstract: Objectives: The aim of this study was to investigate the expression of genes crucial for the quality of the oocyte and whether expression levels of these genes in cumulus cells can be biological markers for the quality of the oocyte, zygote or embryo, ... ...

    Abstract Objectives: The aim of this study was to investigate the expression of genes crucial for the quality of the oocyte and whether expression levels of these genes in cumulus cells can be biological markers for the quality of the oocyte, zygote or embryo, or even for achievement of pregnancy after the assisted reproductive technology procedure. We examined the expression profile of the anti-Müllerian hormone (AMH) gene and its respective receptors: anti-Müllerian hormone receptor type 2 (AMHR2), follicle-stimulating hormone receptor (FSHR) and androgen receptor (AR) in cumulus cells (CCs) surrounding the oocyte, as well as AMH concentrations in follicular fluid of the associated follicle. The obtained gene expression levels were correlated with the morphological quality of the associated oocyte, zygote and embryo as well as with assisted reproductive technology outcome following the intracytoplasmic sperm injection procedure.
    Methods: This study involved 129 cumulus cells and 35 follicular fluid samples, taken from 58 patients undergoing the intracytoplasmic sperm injection procedure. Oocytes, zygotes and embryos were assessed for morphological quality. The relative gene expression of AMH, AMHR2, FSHR and AR was calculated using the delta-delta Ct method. Anti-Müllerian hormone concentrations in follicular fluids were measured by enzyme-linked immunosorbent assay.
    Results: The results yielded suggest a relationship between AMH, AR and oocyte morphology: AMH and AR gene expression levels in CCs surrounding morphologically optimal oocytes were significantly lower than in CCs surrounding oocytes with suboptimal morphology (p = 0.011 and p = 0.008, respectively). Statistically significant positive correlation was found between mRNA expression levels of AMH and FSHR (p < 0.001), AMH and AR (p = 0.001), AMHR2 and FSHR (p < 0.001), AMHR2 and AR (p < 0.001), as well as between FSHR and AR (p < 0.001).
    Conclusion: Assessed results point to AMH and AR relation with oocyte maturity, but not with its fertilization potential, or with embryo quality.
    Language English
    Publishing date 2019-07-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 2735399-0
    ISSN 2050-3121
    ISSN 2050-3121
    DOI 10.1177/2050312119865137
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Follicular fluid anti-Müllerian hormone: a predictive marker of fertilization capacity of MII oocytes.

    Tramišak Milaković, Tamara / Panić Horvat, Linda / Čavlović, Kristina / Smiljan Severinski, Neda / Vlašić, Hrvoje / Vlastelić, Ivan / Ljiljak, Dejan / Radojčić Badovinac, Anđelka

    Archives of gynecology and obstetrics

    2015  Volume 291, Issue 3, Page(s) 681–687

    Abstract: Purpose: The present study aimed to correlate anti-Müllerian hormone (AMH) levels in follicular fluid (FF) with oocyte maturity stages, morphological quality of metaphase II (MII) oocyte and fertilization capacity of MII oocytes.: Methods: A total of ...

    Abstract Purpose: The present study aimed to correlate anti-Müllerian hormone (AMH) levels in follicular fluid (FF) with oocyte maturity stages, morphological quality of metaphase II (MII) oocyte and fertilization capacity of MII oocytes.
    Methods: A total of 92 infertile women undergoing controlled ovarian stimulation and intracytoplasmic sperm injection were analyzed. Patients were divided into two groups according to age: <35 years (n = 43) and ≥35 years (n = 49). An FF sample was obtained from a single dominant follicle in each patient for a total of 92 follicular fluid samples analyzed. AMH levels in serum and follicular fluid were measured by enzyme-linked immunosorbent assay. Mature MII oocytes, zygotes, and embryos were assessed for morphological quality.
    Results: Serum AMH levels were significantly higher in patients aged <35 years. No correlation was observed between FF AMH level and oocyte maturation stages or morphological quality of MII oocyte. Significantly lower FF AMH levels were observed in fertilized MII oocytes than in non-fertilized MII oocytes in patients aged <35 years (2.56 ± 2.0 ng/ml vs. 4.81 ± 4.14 ng/ml; p = 0.032).
    Conclusions: The present study revealed no correlation between FF AMH and oocyte maturity stage or morphological quality of MII oocyte. However, FF AMH might be a predictive marker for fertilization capacity of MII oocytes.
    MeSH term(s) Adult ; Age Factors ; Anti-Mullerian Hormone/analysis ; Anti-Mullerian Hormone/metabolism ; Enzyme-Linked Immunosorbent Assay ; Female ; Fertilization in Vitro ; Follicular Fluid/chemistry ; Follicular Fluid/metabolism ; Humans ; Infertility, Female/therapy ; Metaphase ; Oocytes/cytology ; Oocytes/physiology ; Oogenesis ; Ovarian Follicle/metabolism ; Ovulation Induction ; Predictive Value of Tests ; Pregnancy ; Pregnancy Rate ; Sperm Injections, Intracytoplasmic
    Chemical Substances Anti-Mullerian Hormone (80497-65-0)
    Language English
    Publishing date 2015-03
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 896455-5
    ISSN 1432-0711 ; 0932-0067
    ISSN (online) 1432-0711
    ISSN 0932-0067
    DOI 10.1007/s00404-014-3460-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: CROATIAN SOCIETY OF CLINICAL EMBRYOLOGISTS – GUIDELINES ON THE EPIDEMIOLOGICAL FRAMEWORK FOR THE IMPLEMENTATION OF MEDICALLY ASSISTED REPRODUCTION (MAR) PROCEDURES DURING THE COVID-19 PANDEMIC REGARDING THE SAFETY OF PATIENTS AND MEDICAL HEALTH WORKERS

    Vujisic Zivkovic, Sanja / Baricevic, Marijana / Cavlovic, Kristina / Cerina, Mia / Cukusic Kalajzic, Andrea / Dundovic, Marija / Hafner, Daria / Gelo, Nina / Ljiljak, Dejan / Matkovic, Katarina / Smolcic, Ana / Sogoric Sevo, Sonja / Stimac, Davor / Tramisak Milakovic, Tamara / Zovkic, Sanja / Stanic, Patrik

    Molecular and Experimental Biology in Medicine ; ISSN 2584-671X (Online) ; Volume 3 ; Issue 1

    2020  

    Abstract: Due to the high virulence of the SARS-CoV-2 virus, the infection rate in the community has led to a state of pandemic, leading to the introduction of new emergency measures all over the world. With the aim of controlling and preventing the SARS-CoV-2 ... ...

    Abstract Due to the high virulence of the SARS-CoV-2 virus, the infection rate in the community has led to a state of pandemic, leading to the introduction of new emergency measures all over the world. With the aim of controlling and preventing the SARS-CoV-2 viral epidemic, the health institutions performing medically assisted reproduction (MAR) suspended any new MAR treatments in order to reduce the burden on the health care system and implement current social distancing recommendations. Considering the favorable epidemiological situation in Croatia, our perspective is that it is time to conceive, plan and bring forth guidelines for restarting work in MAR centres, taking into account the selection of patients and organization of good laboratory and clinical practices with emphasis on the safety of patients and health workers. In regard to epidemiological knowledge, it is important to establish the reorganization of work in MAR centres including epidemiological measures of reducing unnecessary stays in closed spaces, the usage of protective gear by patients and health workers and disinfection of the working spaces and equipment.
    Keywords Croatian Society of Clinical Embryologists ; IVF laboratory ; medically assisted reproduction ; health epidemiological framework ; Covid-19 pandemic ; covid19
    Subject code 360
    Language English
    Publisher Croatian Society of Biologists in Health Care
    Publishing country hr
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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