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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
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Related Experiment Video

Updated: Aug 17, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
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Galactorrhea: Rapid Evidence Review.

Richard D Bruehlman1, Stella Winters1, Connor McKittrick1

  • 1University of Pittsburgh Medical Center St. Margaret Family Medicine Residency Program, Pittsburgh, Pennsylvania.

American Family Physician
|December 15, 2022
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Galactorrhea, or milky nipple discharge unrelated to normal lactation, is often caused by hyperprolactinemia. Treatment focuses on addressing the underlying cause, with cabergoline as a preferred medication for persistent hyperprolactinemia.

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Area of Science:

  • Endocrinology
  • Reproductive Health

Background:

  • Galactorrhea is defined as the production of breast milk outside of physiologic lactation.
  • While discharge within a year of pregnancy cessation is typically normal, persistent galactorrhea often indicates underlying medical conditions.

Purpose of the Study:

  • To outline the diagnostic approach and management strategies for galactorrhea.
  • To identify common and less common causes of hyperprolactinemia leading to galactorrhea.

Main Methods:

  • Initial assessment includes a pregnancy test for premenopausal women.
  • Laboratory evaluation involves prolactin, thyroid-stimulating hormone, and renal function tests.
  • Further investigation with pituitary MRI may be indicated for unclear hyperprolactinemia causes.

Main Results:

  • Hyperprolactinemia, frequently due to medications or pituitary microadenomas, is a primary cause.
  • Hypothyroidism, renal failure, and other pituitary/hypothalamic lesions are less common etiologies.
  • Discontinuation of causative medications is the first step in management.

Conclusions:

  • Treatment for galactorrhea is not always necessary if hormone levels are normal and symptoms are not bothersome.
  • Cabergoline is the recommended pharmacologic treatment for hyperprolactinemia.
  • Surgical intervention is reserved for refractory cases or when dopamine agonist therapy is not tolerated.