Track topics on Twitter Track topics that are important to you
Human safety studies will be carried out to test whether hop botanical dietary supplements used by peri- and post-menopausal women are safe to use with Food and Drug Administration (FDA)-approved drugs. To test this, a hop dietary supplement (previously tested in women at the University of Illinois at Chicago without any harmful effects) will be given with four selected FDA-approved drugs to determine if the hop supplement can increase or decrease how these medications are absorbed, metabolized and excreted by the human body. Preclinical studies predict that the hop supplement might affect the metabolism or break down of these probe drugs.
At the start of a study, subjects will be administered low doses of a mixture of four FDA-approved drugs (caffeine, tolbutamide, dextromethorphan, and alprazolam), and serial blood samples will be drawn and analyzed for the concentration of each drug over time. Afterwards, participants will take the hop dietary supplement twice daily for 14 days to allow for potential inhibition or induction of drug metabolizing enzymes and transporters. Thereafter, the same drugs will be taken again to obtain a second measure of drug concentrations in blood over time. Changes in the concentration-time curve values for each probe drug obtained before and after ingestion of the supplement would indicate that metabolism of the probe drugs is impacted by the hop dietary supplement.
Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science
Not yet recruiting
University of Illinois at Chicago
Published on BioPortfolio: 2016-07-29T04:08:21-0400
Drug interactions between antiretroviral drugs and concomitants drugs and between antiretroviral need to be studied HIV-population is ageing. The referential of interactions is the Liverpo...
The prenylflavonoids 6-prenylnaringenin (6-PN) and 8-prenylnaringenin (8-PN) are secondary plant substances, almost exclusively found in hops (Humulus lupulus). Both compounds have known p...
This study will assess possible drug-drug interactions with specific isoenzymes over a total study duration of 6-8 weeks. Blood samples collected pre and post-dose, and urine samples coll...
Micellar encapsulation will be tested to increase the oral bioavailability in humans of 6-prenylnaringenin (6-PN) from hops (Humulus lupulus). The study follows a single dose (250 mg 6-PN)...
This study examines the effects of increasing the cost of social interactions and food on overweight and non-overweight youth. Using a computerized operant task youth will earn points exch...
Effects of a hops (Humulus lupulus L.) dry extract supplement on self-reported depression, anxiety and stress levels in apparently healthy young adults: a randomized, placebo-controlled, double-blind, crossover pilot study.
The Humulus lupulus L. plant (hops) is used as a herbal medicinal product for anxiety/mood disorders. Our aim was to study the effects of a hops dry extract on self-reported depression, anxiety and st...
Food/Herb-drug interactions have become a major problem in health care. These interactions can lead to loss of therapeutic efficacy or toxic effects of drugs.
Xanthohumol, a prenylated flavonoid found in hops (Humulus lupulus L.), exhibits multiple biological activities such as anti-atherosclerosis and hypolipidemic activities. In this study, we aim to inve...
To investigate whether treatment with xanthohumol (XN), the principal prenylated chalconoid from Humulus lupulus (hops), is protective in a mouse model of light-induced retinal degeneration (LIRD).
The management of drug-drug interactions (DDIs) is a complex process in which risk-benefit assessments should be combined with the patient's perspective.
A plant genus in the CANNABACEAE family. Best known for the buds of Humulus lupulus L. used in BEER.
Specific effects of drugs and substances on metabolic pathways such as those occurring through the CYTOCHROME P-450 ENZYME SYSTEM. These include effects that often result in DRUG INTERACTIONS; FOOD-DRUG INTERACTIONS; and HERB-DRUG INTERACTIONS.
The pharmacological result, either desirable or undesirable, of drugs interacting with components of the diet. (From Stedman, 25th ed)
The action of a drug that may affect the activity, metabolism, or toxicity of another drug.
The properties and processes of drug metabolism and drug interactions.
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...
In order to become availible to pateints, drugs need to undergo a number of phases of clinical trials to test their efficacy and safty and to then be authorised by the drug approval organistion in each respective country. This is the FDA in the USA and N...