Related Experiment Video
Updated: Jun 20, 2025

08:18
Preparation of Naringenin Solution for In Vivo Application
Published on: August 10, 2021
3.3K
Topical prebiotic nitrate: optimizing the 'hang-time', source and dose for specific oral or systemic effects
1Department of Genomics and Health, FISABIO Foundation, Valencia, Spain. bob.rosier@fisabio.es.
NPJ Biofilms and Microbiomes
|July 18, 2024
Summary
Nitrate product
Area of Science:
- Nutritional Science
- Oral Biology
Background:
- Dietary nitrate intake is explored for therapeutic applications.
- The 'hang-time' of nitrate delivery is a novel consideration for product design.
Discussion:
- Longer nitrate 'hang-time' may not always be superior due to salivary recycling.
- Extending 'hang-time' is beneficial for targeting oral tissues and individuals with reduced salivary flow.
- Nitrate dose, source, and desired effect (oral vs. systemic) are critical variables.
Key Insights:
- Nitrate 'hang-time' influences therapeutic strategies.
- Oral tissue exposure and salivary flow impairment are key applications for extended 'hang-time'.
- Salivary microbiota changes require placebo-controlled validation.
Outlook:
- Further research is needed to optimize nitrate delivery systems.
- Placebo-controlled studies are essential to confirm the effects of nitrate products on oral microbiota.
- Understanding nitrate metabolism and oral microbiome interactions is crucial for future applications.
Related Concept Videos
Factors Influencing Drug Absorption: Presystemic Elimination
203
The pharmacokinetic journey of oral drugs begins with a crucial first pass through the hepatic portal system, called the first-pass effect. This first pass significantly impacts bioavailability — the proportion of a drug that enters systemic circulation and is available for therapeutic action. The primary route sees the drug absorbed by intestinal membranes and then shunted to the liver via the hepatic portal vein. Here, pre-systemic elimination occurs as drugs face metabolism or biliary...
203
Drug Delivery: Enteral Route
414
The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
414
First Pass Effect
5.4K
Presystemic elimination, or the first-pass effect, is the metabolism of drugs that reduces their effective concentration at the site of action. Apart from the first-pass effect, the systemic bioavailability of the drug is also reduced by other factors, including incomplete absorption or chemical degradation of drugs.
Depending on the route of administration, drugs can be metabolized in the liver, intestine, lungs, and vasculature. Orally administered drugs are first absorbed through the...
Depending on the route of administration, drugs can be metabolized in the liver, intestine, lungs, and vasculature. Orally administered drugs are first absorbed through the...
5.4K
Factors Affecting Dissolution: Particle Size and Effective Surface Area
787
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
787
Additional Routes of Drug Administration
2.7K
Choosing the appropriate route of drug administration is significantly influenced by two key factors: the therapeutic objectives and the inherent properties of the drug being used.
Administering drugs via inhalation allows for the direct delivery of gaseous, volatile substances or droplets to different parts of the respiratory tract. One of the advantages of the inhalation route is the rapid absorption of drugs into the circulatory system, which is possible because of the large surface area of...
Administering drugs via inhalation allows for the direct delivery of gaseous, volatile substances or droplets to different parts of the respiratory tract. One of the advantages of the inhalation route is the rapid absorption of drugs into the circulatory system, which is possible because of the large surface area of...
2.7K
Routes of Drug Administration: Enteral
3.4K
Medications can be administered through the enteral route using liquids, capsules, or tablets.
Enteral administration involves drug administration via the mouth in two ways: orally or sublingually.
Unlike sublingually drugs, drugs that are taken orally pass through the gastrointestinal (GI) tract and get metabolized by the liver. Once metabolized, the drug is absorbed into the systemic circulation, reaching different body parts via the bloodstream. However, while passing through the stomach,...
Enteral administration involves drug administration via the mouth in two ways: orally or sublingually.
Unlike sublingually drugs, drugs that are taken orally pass through the gastrointestinal (GI) tract and get metabolized by the liver. Once metabolized, the drug is absorbed into the systemic circulation, reaching different body parts via the bloodstream. However, while passing through the stomach,...
3.4K

