Evidence map›Paper›PMID 37053167›Full record

ArticlePLoS computational biology2023

Toward an optimal contraception dosing strategy.

Brenda Lyn A Gavina, Aurelio A de Los Reyes V, Mette S Olufsen, Suzanne Lenhart, Johnny T Ottesen

Open access · goldAbstract read
In one paragraph

Article in PLoS computational biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 8 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 5 institutions in 4 countries.

Brenda Lyn A GavinaInstitute of Mathematics, University of the Philippines Diliman, Quezon City, Philippines.ORCID 0000-0002-4134-9845
Aurelio A de Los Reyes VInstitute of Mathematics, University of the Philippines Diliman, Quezon City, Philippines.ORCID 0000-0001-5418-4579
Mette S OlufsenDepartment of Mathematics, North Carolina State University, Raleigh, North Carolina, United States of America.ORCID 0000-0003-2694-0044
Suzanne LenhartDepartment of Mathematics, University of Tennessee, Knoxville, Tennessee, United States of America.ORCID 0000-0002-6898-5796
Johnny T OttesenDepartment of Sciences, Roskilde University, Roskilde, Denmark.
Institute for Basic Science · KRNorth Carolina State University · USRoskilde University · DKUniversity of Tennessee at Knoxville · USUniversity of the Philippines Diliman · PH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anovulation refers to a menstrual cycle characterized by the absence of ovulation. Exogenous hormones such as synthetic progesterone and estrogen have been used to attain this state to achieve contraception. However, large doses are associated with adverse effects such as increased risk for thrombosis and myocardial infarction. This study utilizes optimal control theory on a modified menstrual cycle model to determine the minimum total exogenous estrogen/progesterone dose, and timing of administration to induce anovulation. The mathematical model correctly predicts the mean daily levels of pituitary hormones LH and FSH, and ovarian hormones E2, P4, and Inh throughout a normal menstrual cycle and reflects the reduction in these hormone levels caused by exogenous estrogen and/or progesterone. Results show that it is possible to reduce the total dose by 92% in estrogen monotherapy, 43% in progesterone monotherapy, and that it is most effective to deliver the estrogen contraceptive in the mid follicular phase. Finally, we show that by combining estrogen and progesterone the dose can be lowered even more. These results may give clinicians insights into optimal formulations and schedule of therapy that can suppress ovulation.

Indexed as

AnovulationProgesteroneContraceptionEstradiolEstrogensFemaleHumansLuteinizing HormoneEstradiolEstrogensLuteinizing HormoneProgesterone

Identifiers

PMID37053167
PMCPMC10101497
OpenAlexW4365443999

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.