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相关概念视频

Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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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.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
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Rational Dosage Regimen: Maintenance Dose and Loading Dose01:24

Rational Dosage Regimen: Maintenance Dose and Loading Dose

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A rational dosage regimen considers a drug's pharmacokinetics, including its absorption, distribution, metabolism, and elimination from the body. By understanding these factors, the appropriate dosage can be determined, and the dosing schedule can be designed to achieve and maintain the desired therapeutic effect while minimizing adverse effects.
In most cases, drugs are administered repetitively or infused continuously to maintain a steady-state concentration in the body. At a steady...
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Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

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In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
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Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

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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.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
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Insulin: Dosing Regimen and Adverse Effects01:16

Insulin: Dosing Regimen and Adverse Effects

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Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
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Dosage Regimen: Fixed Dose01:01

Dosage Regimen: Fixed Dose

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Fixed-dose regimens are a common approach to administer drugs to achieve and maintain desired levels of the drug in the body. In this dosing strategy, a specific amount of medication is given at regular intervals, often multiple times a day, to ensure a consistent drug concentration in the bloodstream.
Fixed-dose regimens can be used for various routes of administration, including intravenous (IV) injections and oral medications. For IV administration, a predetermined amount of the drug is...
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相关实验视频

Updated: Jul 4, 2025

A Personalized 3D-Printed Model for Preoperative Evaluation in Thyroid Surgery
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优化levothyroxine替代:甲状腺切除术后患者的精确剂量模型.

Guanghua Yang1, Jiaxi Pu1, Sibo Zhu2

  • 1Department of General Surgery, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, People's Republic of China.

International journal of general medicine
|February 7, 2024
PubMed
概括

在甲状腺切除术后优化勒沃西 (LT4) 剂量是复杂的. 这项研究确定了关键的患者因素,包括良性/恶性状态和特定的血液标志物,以预测最佳的LT4剂量以改善治疗结果.

关键词:
剂量 剂量 剂量 剂量 剂量甲氧氨酸 (Levothyroxine) 是一种抗氧化剂.模型模型模型模型模型模型预测 预测 预测 预测甲状腺是什么?甲状腺是什么?

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科学领域:

  • 内分泌学 在内分泌学.
  • 在瘤学瘤学.
  • 临床化学 临床化学

背景情况:

  • 甲状腺瘤的甲状腺切除术经常导致甲状腺功能低下症,需要取代激素levothyroxine (LT4).
  • 达到最佳的LT4剂量对于维持正常的激素水平和抑制癌症患者的TSH至关重要,但它仍然是一个临床挑战.
  • 低于最佳的LT4剂量可能导致不确定的治疗结果和不良副作用.

研究的目的:

  • 确定主要的临床和实验室变量,以预测在全甲状腺切除术后的患者中最佳的勒沃西 (LT4) 剂量.
  • 开发LT4剂量的预测模型,以提高治疗效率和甲状腺切除术后的患者管理.

主要方法:

  • 对510名甲状腺切除术患者的临床和实验室数据的分析.
  • 应用数据预处理,主要组件分析,对应和回归分析,对274个样本进行98个变量,使用R.
  • 确定影响令人满意的LT4片剂剂量的重要因素.

主要成果:

  • 八个变量显著影响了最佳的LT4剂量:良性/恶性状态,电泳性白蛋白比率 (BQB),总蛋白质 (TP),纤维素降解产物 (FDP),甲状腺刺激激素受体抗体 (TRAB_1),前列红蛋白时间 (PT),单细胞计数 (MONO#) 和C型肝炎抗体 (HCV0C).
  • 基于这些重要变量建立了一个预测线性模型.

结论:

  • 患者的特征,如良性/恶性状态,TRAB_1和BQB比率,可以作为指导术后LT4剂量的有价值指标.
  • 开发的线性模型为预测LT4剂量提供了一个工具,有可能提高治疗效率并优化甲状腺切除术患者的资源利用率.