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Endocrine cells produce hormones to communicate with remote target cells found in other organs. The hormone reaches these distant areas using the circulatory system. This exposes the whole organism to the hormone but only those cells expressing hormone receptors or target cells are affected. Thus, endocrine signaling induces slow responses from its target cells but these effects also last longer.
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What is the Endocrine System?00:46

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The endocrine system sends hormones—chemical signals—through the bloodstream to target cells—the cells the hormones selectively affect. These signals are produced in endocrine cells, secreted into the extracellular fluid, and then diffuse into the blood. Eventually, they diffuse out of the blood and bind to target cells which have specialized receptors to recognize the hormones.
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The Endocrine System01:29

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The endocrine system is an extensive network of glands – organs or tissues in the body that create chemicals that control many bodily functions, that secrete hormones, which are chemical messengers that play essential roles in regulating various bodily functions. These hormones are secreted into the bloodstream and travel throughout the body. They require specific receptors to convey signals to cells possessing these corresponding receptors. This complex signaling mechanism ensures that...
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The endocrine system, a complex network of glands, orchestrates physiological balance within the body through the production and secretion of hormones. These hormones are chemical messengers in intercellular communication, acting as conduits between the secretory cells and distant target sites. They traverse the circulatory system by being released into the extracellular fluid, and their impact is specific to cells possessing receptors for a particular hormone.
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Structures of the Endocrine System00:59

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The intricate framework of the endocrine system encompasses a diverse array of glands, with their target tissues and organs strategically distributed throughout the body. Central to this network are the endocrine glands, specialized structures that lack ducts and release hormones directly into the interstitial fluid. Notably, the hypothalamus, a vital neuroendocrine organ situated in the brain, governs neural functions and serves as a potent source of hormonal regulation. Near the hypothalamus...
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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Methods to Test Endocrine Disruption in Drosophila melanogaster
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Endocrine Surgery in the Geriatric Population.

John Benjamin McIntire1, Susan McCammon1, Eric R Mong2

  • 1Department of Otolaryngology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555-0521, USA.

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Summary
This summary is machine-generated.

Age impacts thyroidectomy risks, especially in older adults. Careful risk assessment and patient-centered discussions are crucial for managing thyroid disease in geriatric patients.

Keywords:
Endocrine surgeryGeriatricRisk stratificationThyroid

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Area of Science:

  • Endocrinology
  • Geriatric Medicine
  • Surgical Oncology

Background:

  • Age is an independent risk factor for post-thyroidectomy complications, including pulmonary, infectious, and cardiac issues.
  • Geriatric patients with nodular thyroid disease or thyroid microcarcinoma require careful consideration of observation versus surgical intervention.
  • Preoperative assessment of comorbidities and frailty is essential for optimizing surgical outcomes in elderly individuals.

Purpose of the Study:

  • To highlight the importance of age as a critical factor in endocrine surgery decision-making.
  • To emphasize the need for individualized risk-benefit analysis for geriatric patients undergoing thyroidectomy.
  • To underscore the necessity of comprehensive preoperative evaluations and patient-centered discussions.

Main Methods:

  • Review of existing literature on age-related risks in thyroidectomy.
  • Analysis of factors influencing surgical outcomes in geriatric populations.
  • Emphasis on risk stratification and shared decision-making models.

Main Results:

  • Advanced age is associated with increased risks of pulmonary, infectious, and cardiac complications following thyroidectomy.
  • Age and surgical risk must be weighed against the benefits of observation for conditions like nodular thyroid disease and thyroid microcarcinoma.
  • Preoperative risk stratification, considering comorbidities and frailty, can improve surgical outcomes in geriatric patients.

Conclusions:

  • Age is a significant determinant in the management of endocrine surgical conditions, particularly thyroid disease.
  • Optimizing outcomes in geriatric patients necessitates thorough preoperative risk assessment and open communication regarding treatment options.
  • Shared decision-making, involving patients and their families, is paramount for navigating the complexities of surgical versus observational management in the elderly.