Transcriptional Profiling of Human Endocervical Tissues Reveals Distinct Gene Expression in the Follicular and Luteal Phases of the Menstrual Cycle
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE80455 | GEO | 2016/05/12
SECONDARY ACCESSION(S): PRJNA318970
REPOSITORIES: GEO
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Project description:Roblitz2013 - Menstrual Cycle following GnRH analogue administration
The model describes the menstrual cycle feedback mechanisms. GnRH, FSH, LH, E2, P4, inbibins A and B, and follicular development are modelled. The model predicts hormonal changes following GnRH analogue administration. Simulation results agree with measurements of hormone blood concentrations. The model gives insight into mechanisms underlying gonadotropin supression.
This model is described in the article:
A mathematical model of the human menstrual cycle for the administration of GnRH analogues.
Röblitz S, Stötzel C, Deuflhard P, Jones HM, Azulay DO, van der Graaf PH, Martin SW.
J. Theor. Biol. 2013 Mar; 321: 8-27
Abstract:
The paper presents a differential equation model for the feedback mechanisms between gonadotropin-releasing hormone (GnRH), follicle-stimulating hormone (FSH), luteinizing hormone (LH), development of follicles and corpus luteum, and the production of estradiol (E2), progesterone (P4), inhibin A (IhA), and inhibin B (IhB) during the female menstrual cycle. Compared to earlier human cycle models, there are three important differences: The model presented here (a) does not involve any delay equations, (b) is based on a deterministic modeling of the GnRH pulse pattern, and (c) contains less differential equations and less parameters. These differences allow for a faster simulation and parameter identification. The focus is on modeling GnRH-receptor binding, in particular, by inclusion of a pharmacokinetic/pharmacodynamic (PK/PD) model for a GnRH agonist, Nafarelin, and a GnRH antagonist, Cetrorelix, into the menstrual cycle model. The final mathematical model describes the hormone profiles (LH, FSH, P4, E2) throughout the menstrual cycle of 12 healthy women. It correctly predicts hormonal changes following single and multiple dose administration of Nafarelin or Cetrorelix at different stages in the cycle.
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2013-11-22 | BIOMD0000000494 | BioModels
Project description:Purpose:The goal of this study was to enrich understanding of the reproductive difference Methods:Multiparous Canadian Large White cyclic sows were divided into two parts: high (H; total number of piglets born > 15.73) and low (L; total number of piglets born < 11.11) fecundity. Eight sows with similar parity from each part were chosen (n=16). Ovarian tissues were obtained on the 14 day (day 1 = first day of estrus) after estrus as in the luteal phase (L) and 20 day of the estrous cycle as in the follicular phase (F). Transcriptome profiling of ovarian tissues were generated by deep sequencing, in quadruplicate, using Illumina HiSeq X10 instrument. Results: Using an optimized data analysis workflow, we obtained the differentially expressed RNAs between the high and low fecundity, with a fold change ≥1.5 and p value < 0.05. These results provide further insight into fecundity in pigs. Conclusions: Our study represents the first detailed analysis of ovary transcriptome. It will be significantly helpful to display a novel regulatory mechanism for further investigation of prolificacy in pigs.
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