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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
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Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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The Thyroid Gland01:23

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
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Synthesis and Regulation of Thyroid Hormones01:20

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
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Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
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Thyroid function in Klinefelter syndrome: a multicentre study from KING group.

G Balercia1, M Bonomi2,3, V A Giagulli4

  • 1Division of Endocrinology, Department of Clinical and Molecular Sciences, Umberto I Hospital, Polytechnic University of Marche, Ancona, Italy.

Journal of Endocrinological Investigation
|March 27, 2019
PubMed
Summary
This summary is machine-generated.

Hypogonadism does not cause thyroid dysfunction in Klinefelter syndrome (KS). The prevalence of Hashimoto's thyroiditis (HT) in KS is similar to the general male population, indicating no increased risk associated with the XXY karyotype.

Keywords:
Hashimoto’s thyroiditisHypergonadotropic hypogonadismKlinefelter syndromeTestosteroneThyroid diseasesThyroid hormones

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Area of Science:

  • Endocrinology
  • Genetics
  • Reproductive Medicine

Background:

  • Thyroid dysfunctions are observed in Klinefelter syndrome (KS), but their cause remains unclear.
  • The potential role of hypogonadism in KS-related thyroid disorders needs further investigation.
  • Distinguishing KS thyroid issues from other hypogonadal conditions is crucial for accurate diagnosis.

Purpose of the Study:

  • To evaluate the pathogenetic role of hypogonadism in thyroid disorders in KS patients.
  • To compare thyroid function in KS patients with hypogonadal men without KS (non-KS).
  • To determine if hypogonadism influences thyroid dysfunction in KS.

Main Methods:

  • A multicentre case-control study involving 174 KS and 62 non-KS hypogonadal men.
  • Evaluation of thyroid function (FT4, TSH, FT3/FT4 ratio) and hormonal parameters (testosterone).
  • Statistical analyses included Student's t test, Mann-Whitney test, and Chi-square test.

Main Results:

  • Free thyroxine (FT4) levels were significantly lower in KS patients compared to non-KS.
  • Thyroid-stimulating hormone (TSH) and testosterone levels were similar between KS and non-KS groups.
  • Hashimoto's thyroiditis (HT) was diagnosed in 7% of KS patients, with no significant difference in prevalence compared to the normal male population.

Conclusions:

  • No etiopathogenic link was found between hypogonadism and altered FT4 production in KS.
  • The set point of thyrotrophic control is not altered in KS.
  • The prevalence of HT in KS is similar to that in the general male population, ruling out an increased risk associated with the XXY karyotype.