相关实验视频

Updated: Jun 8, 2025

Improved UPLC-UV Method for the Quantification of Vitamin C in Lettuce Varieties Lactuca sativa L. and Crop Wild Relatives Lactuca spp.
10:22

Improved UPLC-UV Method for the Quantification of Vitamin C in Lettuce Varieties Lactuca sativa L. and Crop Wild Relatives Lactuca spp.

Published on: June 30, 2020

13.4K

建立和应用维生素和必需矿物质可容忍上限摄入量水平的指南

, Dominique Turck, Torsten Bohn

    EFSA journal. European Food Safety Authority
    |November 7, 2024
    PubMed
    概括

    确定维生素和矿物质的可容忍上摄入量 (UL) 对于防止过度营养消费对健康造成不良影响至关重要. 这一更新的框架完善了营养安全风险评估方法.

    关键词:
    UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL UL饮食参考价值是指饮食参考价值.矿物矿物矿物矿物矿物矿物矿物矿物.可以容忍的上吸水水平.维生素维生素维生素是一种维生素.

    更多相关视频

    Determination of Tolerable Fatty Acids and Cholera Toxin Concentrations Using Human Intestinal Epithelial Cells and BALB/c Mouse Macrophages09:39

    Determination of Tolerable Fatty Acids and Cholera Toxin Concentrations Using Human Intestinal Epithelial Cells and BALB/c Mouse Macrophages

    Published on: May 30, 2013

    10.0K
    Author Spotlight: Investigating Physiological Functions of Vitamin A Transporters Using HPLC-Based Vitamin A Profiling05:03

    Author Spotlight: Investigating Physiological Functions of Vitamin A Transporters Using HPLC-Based Vitamin A Profiling

    Published on: December 27, 2024

    1.0K

    相关概念视频

    Vitamins01:30

    Vitamins

    Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced...
    567
    Minerals01:26

    Minerals

    Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
     
    Major...
    272
    Therapeutic Index01:13

    Therapeutic Index

    The therapeutic index of a drug is a key parameter in pharmacology that quantifies the relative safety of a drug by calculating the ratio between the dose that causes toxicity in half the population (50%) to the dose that proves to be effective for half the population (50%). It provides a spectrum of doses for a particular drug ranging from effective to potentially toxic. To illustrate, consider an anticoagulant agent like warfarin. It possesses a narrow window within its therapeutic index to...
    4.1K
    Rational Dosage Regimen: Maintenance Dose and Loading Dose01:24

    Rational Dosage Regimen: Maintenance Dose and Loading Dose

    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...
    3.9K
    Role of Vitamins in Maintaining Bone Health01:25

    Role of Vitamins in Maintaining Bone Health

    The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
    Vitamin A
    Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
    Vitamin B12
    Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
    3.2K
    Lipids: Dietary Sources and Requirements01:18

    Lipids: Dietary Sources and Requirements

    Lipids are an essential component of a balanced human diet. Triglycerides, which make up the majority of dietary lipids, are found in both saturated fats—commonly present in meat, dairy products, and certain tropical plants like coconut, and hydrogenated oils such as margarine and baking shortenings (trans fats)—and unsaturated fats, which are abundant in seeds, nuts, olive oil, and most vegetable oils. The main sources of cholesterol include egg yolks, various meats and organ...
    698