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関連する概念動画

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response01:15

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

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Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
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Circadian Rhythms and Gene Regulation02:19

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The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent...
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Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

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The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
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Chronopharmacokinetics: Time-Dependent Pharmacokinetics01:20

Chronopharmacokinetics: Time-Dependent Pharmacokinetics

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Chronopharmacokinetics studies the temporal change in drug absorption and elimination. These changes can be cyclical or non-cyclical. Cyclical changes occur over a regular interval, while non-cyclical changes occur over a longer, irregular period.
Time-dependent pharmacokinetics refers to non-cyclical changes in drug rate processes over a period of time. It can lead to nonlinear pharmacokinetics, where the relationship between drug concentration and time is not proportional. Non-cyclical...
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In biological systems, most metabolic pathways are interconnected. The cellular respiration processes that convert glucose to ATP—such as glycolysis, pyruvate oxidation, and the citric acid cycle—tie into those that break down other organic compounds. As a result, various foods—from apples to cheese to guacamole—end up as ATP. In addition to carbohydrates, food also contains proteins and lipids—such as cholesterol and fats. All of these organic compounds are used...
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Correlations02:20

Correlations

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Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
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関連する実験動画

Updated: Sep 9, 2025

Manipulation of Rhythmic Food Intake in Mice Using a Custom-Made Feeding System
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クロノタイプと食事の栄養パターンとの関連

Mahmut Bodur1, Ahmet Murat Günal2, Zohreh Sajadi Hezaveh3

  • 1Department of Nutrition & Dietetics, Faculty of Health Sciences, Ankara University, Ankara, Türkiye.

Chronobiology international
|September 5, 2025
PubMed
まとめ
この要約は機械生成です。

この研究では 異なるクロノタイプや 自然な睡眠覚醒サイクルに関連した 異なる栄養分パターンが明らかになりました 朝のクロノタイプは ビタミンBが豊富な食事と関連しており 夕方のタイプは 抗酸化物質が豊富な食品を摂取する傾向が低い.

キーワード:
慢性栄養昼夜リズムダイエット夕暮れ午前中のこと栄養パターン

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Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
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関連する実験動画

Last Updated: Sep 9, 2025

Manipulation of Rhythmic Food Intake in Mice Using a Custom-Made Feeding System
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Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
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Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
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科学分野:

  • 栄養学
  • クロノバイオロジー
  • 公衆衛生

背景:

  • 睡眠と覚醒の自然なパターンを反映したクロノタイプは,食事を含む生活習慣に影響を与えます.
  • 昼夜リズムと栄養素の摂取の相互作用を理解することは パーソナライズされた健康上の推奨事項に不可欠です

研究 の 目的:

  • 大人のコホートでクロノタイプと食事の栄養パターンとの関連を調査する.
  • 朝,中,夕方のクロノタイプに関連した特定の栄養パターンを特定する.

主な方法:

  • クロノタイプ評価のために,Morningness-Eveningness Questionnaire (MEQ) を使用した3,072人の成人の二次データ分析.
  • 24時間のリコールで評価された食事の摂取量で,統計的分析により栄養素のパターンが特定されました.
  • 一方向アノバとマルチノミアル回帰を用いて関連性を決定した.

主要な成果:

  • 中間クロノタイプが最も一般的であった (73%).
  • "Vit B豊富なパターン"は,朝のクロノタイプと関連付けられました.
  • "抗酸化パターン"の遵守は,夜間クロノタイプと逆に関連しており",高脂肪パターン"は,中間型ではあまり一般的ではなかった.

結論:

  • "Vit B-rich"や"antioxidant"のようなダイエットパターンは,クロノタイプと異なる関連性を示しています.
  • 発見によると,クロノタイプは食事の選択に影響し,朝型はビタミンBを好み,夕方型は抗酸化物質に富んだ食品を避ける可能性がある.
  • クロノタイプと食事による摂取の間の因果関係を確立するために,さらなる縦断的な研究が推奨されます.