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Systems Biology in Reproductive Medicine

Michał Kunicki, Krzysztof Łukaszuk, Joanna Liss, Patrycja Skowrońska, Joanna Szczyptańska
: The aim of the study was to assess the granulocyte-colony stimulating factor (G-CSF) effect on unresponsive thin (<7 mm) endometrium in women undergoing frozen-thawed embryo transfer at the blastocyst stage. A total of 62 women with thin unresponsive endometrium were included in the study, of which, 29 received a G-CSF infusion and 33 who opted out of the study served as controls. Patients in both groups had similar endometrial thickness at the time of the initial evaluation: 6.50 mm (5...
November 22, 2016: Systems Biology in Reproductive Medicine
Eva Traven, Ana Ogrinc, Tanja Kunej
The number of publications on research of male infertility is increasing. Technologies used in research of male infertility generate complex results and various types of data that need to be appropriately managed, arranged, and made available to other researchers for further use. In our previous study, we collected over 800 candidate loci for male fertility in seven mammalian species. However, the continuation of the work towards a comprehensive database of candidate genes associated with different types of idiopathic human male infertility is challenging due to fragmented information, obtained from a variety of technologies and various omics approaches...
November 21, 2016: Systems Biology in Reproductive Medicine
Rajeshwari Parida, Luna Samanta
: Leukocytospermia is a physiologic condition defined as human semen with a leukocyte count of >1 x 10(6) cells/ml that is often correlated with male infertility. Moreover, bacteriospermia has been associated with leukocytospermia ultimately leading to male infertility. We have found that semen samples with >1 x 10(6)/ml leukocytes and/or bacteriospermia have oxidative predominance as evidenced by augmented protein carbonyl and lipid peroxidation status of the semen which is implicated in sperm dysfunction...
November 1, 2016: Systems Biology in Reproductive Medicine
Juan Carlos Martínez-Soto, Joan Carles Domingo, Begoña Cordobilla, María Nicolás, Laura Fernández, Pilar Albero, Joaquín Gadea, José Landeras
The purpose of this study was to evaluate the effect of docosahexaenoic acid (DHA) dietary supplementation on semen quality, fatty acid composition, antioxidant capacity, and DNA fragmentation. In this randomized, double blind, placebo-controlled, parallel-group study, 74 subjects were recruited and randomly assigned to either the placebo group (n=32) or to the DHA group (n=42) to consume three 500-mg capsules of oil per day over 10 weeks. The placebo group received 1,500 mg/day of sunflower oil and the DHA group 1,500 mg/day of DHA-enriched oil...
October 28, 2016: Systems Biology in Reproductive Medicine
Alice Luddi, Laura Crifasi, Antonella Quagliarello, Laura Governini, Vincenzo De Leo, Paola Piomboni
Some studies have focused on the association between male infertility and single nucleotide polymorphisms (SNPs) in the ubiquitin-specific protease 26 (USP26) gene, but the results are controversial. In this case-control study including both normozoospermic men and patients with nonobstructive azoospermia, we analyzed both the entire coding region and 5' and 3' untranslated regions of USP26 in order to identify genetic variants in this gene to investigate the role of USP26 on spermatogenesis. We reported variations in the USP26 gene sequence in 82% of azoospermic and in 50% normospermic men...
October 11, 2016: Systems Biology in Reproductive Medicine
Roya Hedayati Kashka, Saeed Zavareh, Taghi Lashkarbolouki
Cryopreservation-induced oxidative stress (OS) may lead to lipid peroxidation, which may be responsible for decreased cell survival rate. Coenzyme Q10 (CoQ10) as a potent antioxidant may improve cell viability by neutralizing OS. In this study, oxidative lipid injury following the vitrification of preantral follicles was investigated. The effects of CoQ10 treatment on the malondialdehyde (MDA) levels, lipid peroxidation products, and activities of enzymatic and nonenzymatic antioxidants of vitrified preantral follicles were also studied...
October 3, 2016: Systems Biology in Reproductive Medicine
Pinar Tulay, Souraya Jaroudi, Alpesh Doshi, Sioban B SenGupta
Preimplantation embryos may have an increased risk of having mismatches due to the rates of cell proliferation and DNA replication. Elimination of mismatches in human gametes and embryos has not been investigated. In this study we developed a sensitive functional assay to examine the repair or elimination of mismatches in both commercially available cell extracts and extracts obtained from preimplantation embryos. Heteroduplex molecules were constructed using synthetic oligonucleotides. Efficiency of the repair of mismatches was semi-quantitatively analysed by exposure to nuclear/whole cell extracts (as little as 2...
September 29, 2016: Systems Biology in Reproductive Medicine
(no author information available yet)
No abstract text is available yet for this article.
December 2016: Systems Biology in Reproductive Medicine
Mara Simopoulou, Laertis Gkoles, Panagiotis Bakas, Polina Giannelou, Theodoros Kalampokas, Konstantinos Pantos, Michael Koutsilieris
: Intracytoplasmic sperm injection (ICSI) is the most frequently applied method for fertilization making the process of identifying the perfect spermatozoon fundamental. Herein we offer a critical and thorough presentation on the techniques reported regarding (i) handling and preparing semen samples, (ii) identifying and 'fishing' spermatozoa, and (iii) improving key factors, such as motility for a successful ICSI practice. These approaches are suggested to make the process easier and more effective especially in atypical and challenging circumstances...
December 2016: Systems Biology in Reproductive Medicine
Nicola Bernabò, Raffaele Di Agostino, Alessandra Ordinelli, Mauro Mattioli, Barbara Barboni
To become fertile, mammalian spermatozoa require completing a complex biochemical maturation that begins in the testis and ends within the female oviduct. Here, we paid attention to the events occurring at the membrane level during the epididymal transit. Indeed, in the epididymis, the molecular composition and the physical-chemical proprieties of sperm membranes markedly change, with functional cross talking among the spermatozoa, the epithelium, and the luminal content (particularly the epididymosomes). To study this process, we undertook a biological networks study, representing the involved molecules as nodes and their interactions as links...
October 2016: Systems Biology in Reproductive Medicine
Ruth Morales, Belén Lledó, José A Ortiz, Jorge Ten, Joaquin Llácer, Rafael Bernabeu
UNLABELLED: Chromosomal polymorphisms involve heterochromatic regions and occur in the general population. However, previous studies have reported a higher incidence of these variants in infertile patients. The aim of this study was to examine the relationship between polymorphic variants and infertility and their association with aneuploidies in male gametes and embryos. We retrospectively considered 1,551 cytogenetic studies involving infertile patients (study group; n=866) and oocyte/sperm donors as the control group (n=685)...
October 2016: Systems Biology in Reproductive Medicine
María E Cabrillana, Pamela Uribe, Juana V Villegas, Juan Álvarez, Raúl Sánchez, Miguel W Fornés
UNLABELLED: Peroxynitrite is a highly reactive nitrogen species and when it is generated at high levels it causes nitrosative stress, an important cause of impaired sperm function. High levels of peroxynitrite have been shown to correlate with decreased semen quality in infertile men. Thiol groups in sperm are mainly found in enzymes, antioxidant molecules, and structural proteins in the axoneme. Peroxynitrite primarily reacts with thiol groups of cysteine-containing proteins. Although it is well known that peroxynitrite oxidizes sulfhydryl groups in sperm, the subcellular localization of this oxidation remains unknown...
October 2016: Systems Biology in Reproductive Medicine
Asmarinah, Ahmad Syauqy, Liya Agustin Umar, Silvia Werdhy Lestari, Eliza Mansyur, Andon Hestiantoro, Agnieszka Paradowszka-Dogan
UNLABELLED: This study aimed to evaluate sperm chromatin maturity and integrity of that injected into good-quality oocytes in an in vitro fertilization-intra cytoplasmic sperm injection (IVF-ICSI) program. A cut-off value of sperm chromatin maturity and integrity was developed as a function of their correlation to the zygote development, i.e., embryo formation and cleavage rate. The study assessed sperm chromatin maturity using aniline blue (AB) staining, whereas toluidine blue (TB) staining was used to assess sperm chromatin integrity...
October 2016: Systems Biology in Reproductive Medicine
Joaquín Cordero-Martínez, Charmina Aguirre-Alvarado, Jessica Gabriela Guzmán-Soriano, Cinthia Erika Sánchez-Arroyo, Juan Carlos Flores-Alonso, Lorena Rodríguez-Páez
UNLABELLED: The present study evaluates the possible antifertility effect of aqueous crude extract (OBACE) of Echeveria gibbiflora, a plant that belongs to the crassulaceae family, used in traditional Mexican medicine as a vaginal post coital rinse to prevent pregnancy and shown to have an immobilization/agglutination effect on sperm of different mammal species. We evaluated the effect of OBACE on functional parameters of mouse sperm, such as viability, capacitation, and acrosome reaction...
October 2016: Systems Biology in Reproductive Medicine
Yichun Guan, Hongfang Fan, Aaron K Styer, Zhiying Xiao, Zhen Li, Jianrui Zhang, Lijun Sun, Xingling Wang, Zhan Zhang
There is no consensus regimen for the optimal endometrial preparation for cryopreservation and vitrified-thawed embryo transfer cycles. This is largely caused by the lack of sufficient investigation and analyses on the respective pregnancy and perinatal outcomes by different regimens. This study aimed to compare both pregnancy and perinatal outcomes between the modified natural and artificial cycles in vitrified-thawed day three embryo transfer for women with regular menstruation. A total of 1,482 vitrified-thawed day three embryo transfer cycles were reviewed including 427 modified natural cycles (NC), 132 ovulation induction cycles (OC), 794 artificial cycles (AC), and 129 GnRH agonist artificial cycles (GAC)...
October 2016: Systems Biology in Reproductive Medicine
Bao-Xia Gu, Xue Wang, Bao-Li Yin, Hai-Bin Guo, He-Long Zhang, Shao-Di Zhang, Cui-Lian Zhang
UNLABELLED: Toll-like receptors (TLRs) localize in mammalian ovary, including granulosa cells, cumulus cells, and theca cells. Previous studies demonstrated that TLRs may be important for the cumulus-oocyte complex expansion and fertilization. There is no evidence to indicate that the deletion of TLRs will induce infertility; however, the abnormal expression of TLRs may decrease oocyte quality and fertility rate. In the present study, we investigated the effects of polycystic ovary syndrome (PCOS) on the expression of TLRs in cumulus cells by using western-blot and quantitative real-time PCR (qRT-PCR) analyses...
October 2016: Systems Biology in Reproductive Medicine
Runa Ozelci, Saynur Yılmaz, Berna Dilbaz, Funda Akpınar, Derya Akdag Cırık, Serdar Dilbaz, Aslı Ocal
: We aimed to assess the possible presence of a seasonal pattern in three parameters of semen analysis: sperm concentration, morphology, and motility as a function of the time of ejaculation and sperm production (spermatogenesis) in normal and oligozoospermic men. This retrospective study included a consecutive series of 4,422 semen samples that were collected from patients as a part of the basic evaluation of the infertile couples attending the Reproductive Endocrine Outpatient Clinic of a tertiary women's hospital in Ankara, Turkey, between January 1, 2012 and December 31, 2013...
September 9, 2016: Systems Biology in Reproductive Medicine
Shubhashree Uppangala, Fiona D'Souza, Shivanand Pudakalakatti, Hanudatta S Atreya, Keyur Raval, Guruprasad Kalthur, Satish Kumar Adiga
: Laser assisted zona hatching (LAH) is a routinely used therapeutic intervention in assisted reproductive technology for patients with poor prognosis. However, results are not conclusive in demonstrating the benefits of zona hatching in improving the pregnancy rate. Recent observations on LAH induced genetic instability in animal embryos prompted us to look into the effects of laser assisted zona hatching on the human preimplantation embryo quality and metabolic uptake using high resolution nuclear magnetic resonance (NMR) technology...
September 6, 2016: Systems Biology in Reproductive Medicine
(no author information available yet)
No abstract text is available yet for this article.
August 2016: Systems Biology in Reproductive Medicine
Medi Kori, Esra Gov, Kazim Yalcin Arga
Dysfunctions and disorders in the ovary lead to a host of diseases including ovarian cancer, ovarian endometriosis, and polycystic ovarian syndrome (PCOS). Understanding the molecular mechanisms behind ovarian diseases is a great challenge. In the present study, we performed a meta-analysis of transcriptome data for ovarian cancer, ovarian endometriosis, and PCOS, and integrated the information gained from statistical analysis with genome-scale biological networks (protein-protein interaction, transcriptional regulatory, and metabolic)...
August 2016: Systems Biology in Reproductive Medicine
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