Systems biology in reproductive medicine

Publisher: Informa Healthcare

Current impact factor: 1.60

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 1.6
2013 Impact Factor 1.7
2012 Impact Factor 1.847
2011 Impact Factor 1.524
2010 Impact Factor 0.244
2009 Impact Factor 0.8

Impact factor over time

Impact factor
Year

Additional details

5-year impact 1.70
Cited half-life 3.40
Immediacy index 0.28
Eigenfactor 0.00
Article influence 0.44
Other titles Systems biology in reproductive medicine (Online), Systems biology in reproductive medicine, SBiRM
ISSN 1939-6376
OCLC 166289315
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Informa Healthcare

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 months embargo
  • Conditions
    • On author's personal website or institution website
    • Publisher copyright and source must be acknowledged
    • Non-commercial
    • Must link to publisher version
    • Publisher's version/PDF cannot be used
    • NIH funded authors may post articles to PubMed Central for release 12 months after publication
    • Wellcome Trust authors may deposit in Europe PMC after 6 months
  • Classification
    yellow

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The present study was designed to investigate protective effects of quercetin against bisphenol A (BPA) induced testicular toxicity in male Sprague Dawley rats. Twenty adult male rats were divided into four groups. The first group served as the control and was provided with normal saline. The second group of rats was treated with 50 mg/kg of BPA dissolved in alcoholic saline. The third group received oral gavage of 50 mg/kg quercetin while the fourth group was treated with quercetin (50 mg/kg) along with BPA (50 mg/kg). All of the treatments were carried out for 52 days. Testicular tissues and epididymis were used for histology while blood plasma was used for hormonal and biochemical analysis. BPA administration resulted in a significant reduction in seminiferous tubule diameter and epithelial height with impaired spermatogenesis. Quercetin treatment resulted in restoration of spermatogenesis and reversal of histological damage. In addition, BPA treatment significantly reduced (p < 0.05) plasma testosterone level (ng/ml) while estrogen was not affected. Similarly, BPA caused a significant alteration in the lipid profile. Interestingly, quercetin treatment led to a marked increase in plasma testosterone, decrease in estrogen concentration, as well as a normalized lipid profile. In conclusion, results indicated that BPA administration induces toxic effects on testis and epididymis, impairs spermatogenesis, with an imbalance in hormonal levels and lipid profile while quercetin amended these toxic effects by restoring normal spermatogenesis, testicular tissue damage, and hormonal levels. This suggests that quercetin may be a potential therapeutic against BPA induced testicular toxicity.
    No preview · Article · Jan 2016 · Systems biology in reproductive medicine
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    ABSTRACT: Mammalian cortical granules (CG) are membrane-bound organelles located in the cortex of the unfertilized oocytes. Upon fertilization, CG undergo exocytosis to function in blocking polyspermy. While cortical granules are important in fertilization, their exact biochemical composition and reproductive function have not been fully defined. In the present study, a 66 kDa wingless-type MMTV integration site family, member 4 (WNT4)-like protein, with mouse CG origin was identified. Oocytes that were double labeled with lectin Lens culinaris agglutinin (LCA) and WNT4 antibody showed colocalization of the WNT4 molecules and cortical granules. The disappearance of WNT4 molecules in the artificially activated oocytes that were devoid of cortical granules confirmed their granule origin. Following fertilization, WNT4 remained associated with zygotes and blastomeres of 2-cell and 8-cell embryos; however the amount of protein present was reduced more than 2-fold as embryos developed. Prior to implantation, WNT4 appeared to be detectable only in the trophoblast cells. Our functional study revealed that WNT4 molecules were involved in regulating zygotic cleavage and early embryogenesis. To our knowledge, this is the first study demonstrating mammalian cortical granules contain signaling molecules that are involved in the regulation of the first phase of embryonic development.
    Preview · Article · Dec 2015 · Systems biology in reproductive medicine
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    ABSTRACT: Estrogens, with their principle representative 17β-estradiol, contribute to the redox state of cells showing both pro- and antioxidative properties. In the ovary, being the main source of estrogens, maintaining balance between the production and detoxification of ROS is crucial. Whereas ovary estrogen concentration is difficult to estimate, its circulating concentration in women may reach the nanomolar level. The aim of the study was to evaluate the effects of 17β-estradiol on oxidative damage to membrane lipids (lipid peroxidation, LPO) and to nuclear DNA in the porcine ovary under basal conditions and in the presence of Fenton reaction (Fe(2+)+H2O2→Fe(3+)+(•)OH + OH(-)) substrates. Ovary homogenates and DNA were incubated in the presence of 17β-estradiol (1 mM-1 pM), without/with FeSO4 (30 μM) + H2O2 (0.5 mM). Malondialdehyde + 4-hydroxyalkenals (MDA + 4-HDA) concentration (LPO index) was measured spectrophotometrically. The concentration of 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) (DNA damage index) was measured by HPLC. We observed that 17β-estradiol did not alter the basal level of oxidative damage, but reduced Fe(2+)+H2O2-induced oxidative damage to membrane lipids when ≥10 nM and to DNA at concentrations ≥1 nM. In the ovary at near physiological concentration, 17β-estradiol prevents experimentally induced oxidative damage. This suggests that under physiological conditions this hormone may contribute to protecting the ovary against oxidative damage.
    No preview · Article · Dec 2015 · Systems biology in reproductive medicine
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    ABSTRACT: Ovarian follicular responsiveness to controlled ovarian hyperstimulation (COH) with gonadotropins is extremely variable between individual patients, and even from cycle to cycle for the same patient. High responder patients are characterized by an exaggerated response to gonadotropin administration, accompanied by a higher risk for ovarian hyperstimulation syndrome (OHSS). In spite of its importance, the literature regarding high responders is characterized by heterogeneous classification methodologies. A clear separation should be drawn between risk factors for a high ovarian response and the actual response exhibited by a patient to stimulation. Similarly, it is important to distinguish between high ovarian response and development of clinically significant OHSS. In this article we: (1) review recent publications pertaining to the identification and clinical management of high responders, (2) propose an integrated clinical model to differentiate sub-groups within this population based on this review, and (3) suggest specific protocols for each sub-group. The model is based on a chronological patient assessment in an effort to target treatment based on the specific clinical circumstances. It is our hope that the algorithm we have developed will assist clinicians to supply targeted and precise treatments in order to achieve a favorable reproductive outcome with minimum complications for each patient.
    No preview · Article · Oct 2015 · Systems biology in reproductive medicine
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    ABSTRACT: DNA damage in cumulus cells (CCs) might be related with the developmental competence of the enclosed oocytes, however, conclusive studies are missing, partially due to the lack of a reliable, cheap, fast, and reproducible DNA damage test. We report the development of a chromatin dispersion test that allows for a fast evaluation of double strand DNA (ds-DNA) damage in CCs. The whole experiment was performed using CCs from 103 oocyte retrieval cycles evaluating the prototype D3-MAX ability (a chromatin dispersion based assay) to detect DNA breaks against in situ nick translation (ISNT) and a two tailed comet assay (TT-comet). Samples were collected from women younger than 35 years of age with a good response to stimulation. Pooled cumulus cells of MII oocytes were used. The chromatin dispersion assay results correlate with the double strand-DNA breaks values assessed by the TT-comet assay (Spearman Rho = 0.624; p = 0.003;), while the correlation was poor when compared to the single strand DNA (ss-DNA) breaks observed also with the TT-comet assay (Spearman Rho = -0.141; p = 0.554). ISNT showed a correspondence in the same cells between enzymatic incorporation of modified nucleotides and halos of chromatin dispersion. We conclude that D3-Max test detects mainly ds-DNA breaks in cumulus cells and is a reliable, fast, and easy reproducible assay suitable for routine clinical practices once the influence on oocyte quality has been established.
    No preview · Article · Aug 2015 · Systems biology in reproductive medicine
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    ABSTRACT: We observed the effects of changes in progesterone (P) during late follicular phases on the treatment outcome of in vitro fertilization-embryo transfer (IVF-ET) and intracytoplasmic sperm injection (ICSI) in patients with different ovarian responses. The data of 8,575 cycles of patients receiving gonadotropin-releasing hormone (GnRH) agonist using the long protocol were retrospectively analyzed. According to the number of oocytes retrieved, the cycles were divided into poor ovarian response group (oocyte retrieval <5), intermediate ovarian response group (5≤ oocyte retrieval ≤15), and high ovarian response group (oocyte retrieval ≥16). We found that in the poor ovarian response group, the clinical pregnancy rate was not significantly associated with both the level of P or the day of human chorionic gonadotrophin (hCG) and the duration of pre-hCG P elevation (p = 0.66 and p = 0.1874). In intermediate and high ovarian response groups, the clinical pregnancy rate was inversely related to both the level of P on the day of hCG administration and the duration of pre-hCG P elevation (all p < 0.0001). The cut-off values of serum P level on the day of hCG administration were 1 ng/ml and 1.75 ng/ml in intermediate and high ovarian response groups, respectively. The cut-off values of pre-hCG P elevation duration were obtained on day 1 in the intermediate ovarian response group, and days 1 or 3 in the high ovarian response group. After correcting for other confounding factors, multivariate logistic regression analysis indicated that P level on the day of hCG administration was not associated with clinical pregnancy rates, but pre-hCG P elevation duration was negatively associated with clinical pregnancy rate in the intermediate and high ovarian response groups. P level is associated with clinical pregnancy rate only in the patients with intermediate or high ovarian response. The longer the duration of pre-hCG P 1 ng/ml, the lower the clinical pregnancy rate.
    No preview · Article · Aug 2015 · Systems biology in reproductive medicine
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    ABSTRACT: Biological rhythms are driven by endogenous biological clocks; in mammals, the master clock is located in the suprachiasmatic nucleus (SCN) of the hypothalamus. This master pacemaker can synchronize other peripheral oscillators in several tissues such as some involved in endocrine or reproductive functions. The presence of an endogenous placental clock has received little attention. In fact, there are no studies in human full-term placentas. To test the existence of an endogenous pacemaker in this tissue we have studied the expression of circadian locomoter output cycles kaput (Clock), brain and muscle arnt-like (Bmal)1, period (Per)2, and cryptochrome (Cry)1 mRNAs at 00, 04, 08, 12, 16, and 20 hours by qPCR. The four clock genes studied are expressed in full-term human placenta. The results obtained allow us to suggest that a peripheral oscillator exists in human placenta. Data were analyzed using Fourier series where only the Clock and Bmal1 expression shows a circadian rhythm.
    No preview · Article · Aug 2015 · Systems biology in reproductive medicine
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    ABSTRACT: Transcriptional profiling is a powerful tool to study biological mechanisms during stem cell differentiation and reprogramming. Genome-wide methods like microarrays or next generation sequencing are expensive, time consuming, and require special equipment and bioinformatics expertise. Quantitative RT-PCR remains one of today's most widely accepted and used methods for analyzing gene expression in biological samples. However, limitations in the amount of starting materials often hinder the quantity and quality of information that could be obtained from a given sample. Here, we present a fast 4-step workflow allowing direct, column-free RNA isolation from limited human pluripotent stem cell (hPSC) cultures that is directly compatible with subsequent reverse transcription, target specific multiplex pre-amplification, and standard SYBR-Green quantitative PCR (qPCR) analysis. The workflow delivers excellent correlations in normalized gene-expression data obtained from different samples of hPSCs over a wide range of cell numbers (500-50,000 cells). We demonstrate accurate and unbiased target gene quantification in limiting stem cell cultures which allows for monitoring embryoid body differentiation and induced pluripotent stem cell (iPSC) reprogramming. This method highlights a rapid and cost effective screening process, allowing reduction of culture formats and increase of processing throughputs for various stem cell applications.
    No preview · Article · Aug 2015 · Systems biology in reproductive medicine
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    ABSTRACT: Human seminal fluid is a complex mixture of secretions originated from epididymis and the male accessory sex glands. It contains a variety of both inorganic and organic components, among which proteins are a major part of the high molecular-mass substances. In this study, 83 human seminal plasma samples were analyzed using a combined Nuclear Magnetic Resonance (NMR) Spectroscopy and Principal Component Analysis (PCA) approach to discriminate patients in relation to semen characteristics and/or conditions affecting the fertility status. Results showed a discrimination between patients with leukocytospermia and with the concomitant presence of varicocele/ex varicocele and leukocytospermia. Patients with testicular cancer, necrozoospermia, and azoospermia were separated from the other patient clusters. In addition, a differentiation of semen quality was also possible. This study represents to first use of sperm parameters together with NMR data as variables in the PCA analysis. Furthermore, this methodology allows the identification of the metabolites which play the most important role in identifying differences among human seminal plasma samples.
    No preview · Article · Aug 2015 · Systems biology in reproductive medicine
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    ABSTRACT: A routine computer-assisted sperm analysis is an important diagnostic test in the andrology laboratory. To evaluate the accuracy and precision of the different types of counting chambers for human semen analysis in combination with a computer-assisted semen analyzer (CASA), a quality-control study that compared human sperm analysis results obtained using different counting chambers (Makler chamber, disposable 8-cell GoldCyto chamber, disposable 4-cell Leja chamber, a plain glass slide, and a tissue culture dish cover with a 24 × 24 mm(2) coverslip) in conjunction with the CASA systems was performed. Significantly higher counts of sperm concentration were obtained from the reusable Makler chamber than from the other counting chambers. Sperm motility from drop loaded counting chambers was significantly higher than that of capillary-loaded chambers. A plain glass slide and a tissue culture dish cover used with a coverslip showed rather better performance in semen assessment. Disposable chambers are suitable for routine semen analysis with CASA in a diagnostic andrology setting. With the proper workflow and quality control, a plain glass slide and the tissue culture dish cover are acceptable alternatives for routine counting chambers with CASA as necessary. The type of counting chamber should be specified in test reports.
    No preview · Article · Jul 2015 · Systems biology in reproductive medicine