Calmodulin levels in oestrogen receptor positive and negative human breast tumours
1991

Calmodulin Levels in Breast Tumors

Sample size: 38 publication Evidence: moderate

Author Information

Author(s): K. Krishnarajul, K. Murugesan, U. Vijl, B.M.L. Kapur, A. Farooq

Primary Institution: All India Institute of Medical Sciences

Hypothesis

This study investigates the relationship between oestradiol-17, estrogen receptors, and calmodulin concentrations in human breast tumors.

Conclusion

The study found that calmodulin levels are influenced by estrogen receptor status in breast tumors.

Supporting Evidence

  • In ER+ tumors, the median value of ER was significantly higher than in ER- tumors.
  • E2 levels in ER+ tumors were significantly higher than in ER- tumors.
  • Total CaM concentration in ER+ tumors was 2.4 times higher than in ER- tumors.
  • A significant positive correlation was found between ER and total CaM concentrations in ER+ tumors.

Takeaway

The study looked at breast tumors and found that those with more estrogen receptors had higher levels of calmodulin, which is a protein that helps cells work properly.

Methodology

The study measured calmodulin, estrogen receptor, and oestradiol levels in breast tumor tissues using various biochemical assays.

Participant Demographics

The study included 38 breast tumor samples, with 23 classified as estrogen receptor positive and 15 as negative.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

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