Page last updated: 2024-12-10

dihydrotachysterol

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth

Description

Dihydrotachysterol: A VITAMIN D that can be regarded as a reduction product of vitamin D2. [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

dihydrotachysterol : A hydroxy seco-steroid that is 9,10-secoergosta-5,7,22-triene substituted by a hydroxy group at position 3. A synthetic analogue of vitamin D that acts a bone density conservation agent. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID12310749
MeSH IDM0006417

Synonyms (2)

Synonym
dihydrotachysterol
67-96-9

Research Excerpts

Bioavailability

ExcerptReferenceRelevance
"The bioavailability of four preparations containing dihydrotachysterol (DHT2) was tested in two separate trials with administration of single, oral doses of 1 mg per individual."( Differences in the bioavailability of dihydrotachysterol preparations.
Alken, RG; Kirkov, V; Koytchev, R; Kunter, U; Vagaday, M, 1994
)
0.29

Dosage Studied

The final dosage of dihydrotachysterol required to maintain normocalcemia in the five cats ranged from 0.5 to 0.8 mg. The patient developed hypercalcaemia when the thyroxine dosage was increased.

ExcerptRelevanceReference
" Any dosage modifications that may need to be made rely totally on established communication between the centers, the DCC, and the Core Pharmacy."( Masking procedure, randomization and stratification, and compliance monitoring in the Growth Failure in Children with Renal Diseases Study.
Boyle, RM; Chan, JC; Coppedge, SH; Shasky, DA, 1990
)
0.28
"We treated a hypoparathyroid woman with calcitriol during pregnancy and did not reduce the dosage after delivery."( Hypercalcemia in a calcitriol-treated hypoparathyroid woman during lactation.
Beguin, EA; Caplan, RH, 1990
)
0.28
" The 2-fold purpose of this study was 1) to develop a practical method for quantitating DHT2 after oral dosing in normal subjects, and 2) to assess changes in serum DHT2 levels and calcium and phosphorus metabolism after DHT2 administration for 8 days."( Serum dihydrotachysterol levels and biological action in normal man.
Bikle, DD; Norman, ME; Taylor, A, 1988
)
0.27
" The highest serum concentrations of the major substances occurred between 2 h and 10 h after administration, but compared with the dosage they were very low."( The distribution of (5E)-(10S)-10,19-dihydroercalciol and its metabolites in serum of rats.
Bosch, R; Duursma, SA; Roelofs, JM; Thijssen, JH; Visser, WJ, 1985
)
0.27
" We present a dihydrotachysterol-calcium treated patient with post-operative hypothyroidism, who developed hypercalcaemia, when the thyroxine dosage was increased."( Hypercalcaemia induced by increased thyroxine substitution in a patient treated with dihydrotachysterol.
Dymling, JF; Hallengren, B; Spjuth, J, 1984
)
0.27
" The present dosage recommendations of all four preparations are identical."( Differences in the bioavailability of dihydrotachysterol preparations.
Alken, RG; Kirkov, V; Koytchev, R; Kunter, U; Vagaday, M, 1994
)
0.29
"0 months of control observations and were randomly assigned to a treatment period; 82 completed the treatment period of at least 6 months while receiving a calcitriol dosage (mean +/- SD) of 17."( A prospective, double-blind study of growth failure in children with chronic renal insufficiency and the effectiveness of treatment with calcitriol versus dihydrotachysterol. The Growth Failure in Children with Renal Diseases Investigators.
Abitbol, CL; Boineau, FG; Chan, JC; Chinchilli, VM; Friedman, AL; Lum, GM; McEnery, PT; Roy, S; Ruley, EJ; Strife, CF, 1994
)
0.29
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (672)

TimeframeStudies, This Drug (%)All Drugs %
pre-1990598 (88.99)18.7374
1990's33 (4.91)18.2507
2000's15 (2.23)29.6817
2010's9 (1.34)24.3611
2020's17 (2.53)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials15 (2.08%)5.53%
Reviews35 (4.85%)6.00%
Case Studies58 (8.03%)4.05%
Observational2 (0.28%)0.25%
Other612 (84.76%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Non-Invasive Brain Stimulation and Substance Use [NCT03122587]38 participants (Actual)Interventional2017-05-15Completed
Concurrent Effect of Running in Different Slopes on Power Performance [NCT02514330]25 participants (Actual)Interventional2012-03-31Completed
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

TrialOutcome
NCT03122587 (2) [back to overview]Change in Distress Tolerance (Mean Latency to Quit the PASAT-C)
NCT03122587 (2) [back to overview]Change in Inhibitory Control (Mean D-prime on the Go/No-Go)

Change in Distress Tolerance (Mean Latency to Quit the PASAT-C)

The Computerized Paced Auditory Serial Addition Task (PASAT-C) is a psychological distress-inducing task. Numbers are presented sequentially on a computer screen and participants are asked to add the currently presented number to the previously presented number before the next number is presented. Participants select the answer using a computer mouse on a number pad displayed on the computer screen below the presented numbers. The speed of the number presentations is individually titrated in order to account for some individual differences in cognitive capacity, but not to secure equal performance among individuals. Incorrect or delayed responses are met with an aversive explosion sound. Distress tolerance is the latency to task termination (i.e., time until quit in minutes). (NCT03122587)
Timeframe: From Session 1 to Session 2, up to 6 days

Interventionminutes (Mean)
Active Sham Stimulation (Session 1 and Session 2)11.2
Active Sham (Session 1) and tACS at 10 Hz (Session 2)9.8
Active Sham (Session 1) and tACS at 40 Hz (Session 2)9.4

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Change in Inhibitory Control (Mean D-prime on the Go/No-Go)

During the computerized Go/No-Go task, participants view a serial stream of pictures and are instructed to continuously press a button on the computer keyboard, but inhibit responses when stimuli are presented consecutively. Inhibitory control will be calculated as d-prime [z(hit rate) - z(false alarm rate)]. Each z-score of 0 is equal to the mean of the reference population, with a standard deviation of 1. Positive d-prime values indicate more inhibitory control, and negative values indicate less inhibitory control. (NCT03122587)
Timeframe: From Session 1 to Session 2, up to 6 days

Interventionz-score (Mean)
Active Sham Stimulation (Session 1 and Session 2)-0.6
Active Sham (Session 1) and tACS at 10 Hz (Session 2)0.9
Active Sham (Session 1) and tACS at 40 Hz (Session 2)-0.3

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