Evidence map›Paper›PMID 14966569›Full record

ArticleThe Journal of clinical investigation2004

The calcium-sensing receptor regulates mammary gland parathyroid hormone-related protein production and calcium transport.

Joshua VanHouten, Pamela Dann, Grace McGeoch, Edward M Brown, Karen Krapcho, Margaret Neville, John J Wysolmerski

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 3% 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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 170 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Calcium-Sensing Receptor Expression in Breast Cancer.International journal of molecular sciences · 2023
    Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Calcium Metabolism and Breast Cancer: Echoes of Lactation?Current opinion in endocrine and metabolic research · 2020
    Article
  17. Review
  18. Article
  19. Review
  20. Article

9 more citing papers are in PubMed but not listed here.

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

7 authors at 4 institutions in 1 country.

Joshua VanHoutenSection of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06520-8020, USA.
Pamela Dann
Grace McGeoch
Edward M Brown
Karen Krapcho
Margaret Neville
John J Wysolmerski
Yale University · USArrien Pharmaceuticals (United States) · USBrigham and Women's Hospital · USUniversity of Colorado Health · US

Funding

PTHrP in Mammary DevelopmentR01DK055501 · NIDDK · YALE UNIVERSITY · PI WYSOLMERSKI, JOHN J · 1999 to 2013
$4.2M
The Effect of PTHrP During LactationR01CA094175 · NCI · YALE UNIVERSITY · PI WYSOLMERSKI, JOHN J · 2002 to 2006
$1.4M
ROLE OF PTHRP IN CALCIUM DELIVERY DURING LACTATIONF32DK059719 · NIDDK · YALE UNIVERSITY · PI VANHOUTEN, JOSHUA N · 2001 to 2003
$127k
NCI NIH HHS CA-94175NCI NIH HHS R01 CA094175NIAMS NIH HHS AR-6032NIDDK NIH HHS 5F32 DK-059719NIDDK NIH HHS DK-55501NIDDK NIH HHS F32 DK059719NIDDK NIH HHS R01 DK055501
6 · The paper itself

Abstract

The transfer of calcium from mother to milk during lactation is poorly understood. In this report, we demonstrate that parathyroid hormone-related protein (PTHrP) production and calcium transport in mammary epithelial cells are regulated by extracellular calcium acting through the calcium-sensing receptor (CaR). The CaR becomes expressed on mammary epithelial cells at the transition from pregnancy to lactation. Increasing concentrations of calcium, neomycin, and a calcimimetic compound suppress PTHrP secretion by mammary epithelial cells in vitro, whereas in vivo, systemic hypocalcemia increases PTHrP production, an effect that can be prevented by treatment with a calcimimetic. Hypocalcemia also reduces overall milk production and calcium content, while increasing milk osmolality and protein concentrations. The changes in milk calcium content, milk osmolality, and milk protein concentration were mitigated by calcimimetic infusions. Finally, in a three-dimensional culture system that recapitulates the lactating alveolus, activation of the basolateral CaR increases transcellular calcium transport independent of its effect on PTHrP. We conclude that the lactating mammary gland can sense calcium and adjusts its secretion of calcium, PTHrP, and perhaps water in response to changes in extracellular calcium concentration. We believe this defines a homeostatic system that helps to match milk production to the availability of calcium.

Indexed as

AnimalsAnimals, NewbornBiological TransportCalciumCell Culture TechniquesCells, CulturedEpithelial CellsFemaleHumansLactationMammary Glands, AnimalMiceMilkParathyroid HormoneParathyroid Hormone-Related ProteinPregnancyCalciumParathyroid HormoneParathyroid Hormone-Related ProteinReceptors, Calcium-Sensing

Identifiers

PMID14966569
PMCPMC338258
OpenAlexW2050854526

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.