Evidence map›Paper›PMID 19034633›Full record

ArticleJournal of mammary gland biology and neoplasia2008

IGF-I, GH, and sex steroid effects in normal mammary gland development.

David L Kleinberg, Weifeng Ruan

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of mammary gland biology and neoplasia, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

48 citing papers in PubMed, 86 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Adult withdrawal of long-term Benzophenone-3 treatment induces regression of mammary ductal branching in a diet-dependent manner.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2025
    Article
  5. Decoding the mechanisms behind second primary cancers.Journal of translational medicine · 2025
    Review
  6. Effects ofAntioxidants (Basel, Switzerland) · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Development of the mammary glands and its regulation: how not all species are equal.Animal frontiers : the review magazine of animal agriculture · 2023
    Article
  11. Adverse Effects of High Temperature On Mammary Alveolar Development In Vitro.Journal of mammary gland biology and neoplasia · 2022
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Frontiers in chemistry · 2021
    Review
  18. Review
  19. Article
  20. Article
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

2 authors at 2 institutions in 1 country.

David L KleinbergBunnie Joan Sachs Laboratory, VA Medical Center, New York, NY, USA. David.Kleinberg@nyumc.org
Weifeng Ruan
Goldman Sachs (United States) · USNew York University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although the pubertal surge of estrogen is the immediate stimulus to mammary development, the action of estrogen depends upon the presence of pituitary growth hormone and the ability of GH to stimulate production of IGF-I in the mammary gland. Growth hormone binds to its receptor in the mammary fat pad, after which production of IGF-I mRNA and IGF-I protein occurs. It is likely that IGF-I then works through paracrine means to stimulate formation of TEBs, which then form ducts by bifurcating or trifurcating and extending through the mammary fat pad. By the time pubertal development is complete a tree-like structure of branching ducts fills the rodent mammary fat pad. In addition to requiring IGF-I in order to act, estradiol also directly synergizes with IGF-I to enhance formation of TEBs and ductal morphogenesis. Together they increase IRS-1 phosphorylation and cell proliferation, and inhibit apoptosis. In fact, the entire process of ductal morphogenesis, in oophorectomized IGF-I(-/-) knockout female mice, can occur as a result of the combined actions of estradiol and IGF-I. IGF-I also permits progesterone action in the mammary gland. Together they have been shown to stimulate a form of ductal morphogenesis, which is anatomically different from the kind induced by IGF-I and estradiol. Although both progesterone and estradiol synergize with IGF-I by increasing IGF-I action parameters, there must be other, as yet unknown mechanisms that account for the anatomical differences in the different forms of ductal morphogenesis observed (hyperplasia in response to IGF-I plus estradiol and single layered ducts in response to IGF-I plus progesterone).

Indexed as

AnimalsCell ShapeGonadal Steroid HormonesGrowth HormoneHumansInsulin-Like Growth Factor IMammary Glands, AnimalMammary Glands, HumanGonadal Steroid HormonesGrowth HormoneInsulin-Like Growth Factor I

Identifiers

PMID19034633
OpenAlexW2023669249

What OpenQuestion holds

Textmetadata
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.