Limitations in interpretation of digoxin absorption using averaged pharmacological response intensities

1976 ◽  
Vol 65 (2) ◽  
pp. 243-247
Author(s):  
J.H. Gustafson ◽  
R.D. Schoenwald ◽  
L.Z. Benet
Keyword(s):  
Pharmacological Response ◽  
Digoxin Absorption

The present state of aspirin and clopidogrel resistance

2009 ◽  
Vol 29 (03) ◽  
pp. 285-290 ◽  
Author(s):  
K. E. Guyer
Keyword(s):  
Diagnostic Tests ◽  
Arterial Thrombosis ◽  
Cardiovascular Events ◽  
Treatment Success ◽  
Antiplatelet Agents ◽  
Antiplatelet Drug ◽  
Coronary Syndrome ◽  
Testing Method ◽  
Pharmacological Response ◽  
Platelet Physiology

SummaryAntiplatelet therapy has demonstrated significant clinical benefit in the treatment of acute coronary syndrome. However, as with any treatment strategy it has been unable to prevent all cardiovascular events. This is far from surprising when considering the complexity of arterial thrombosis and more specifically platelet physiology. This lack of treatment success has provoked the introduction of various diagnostic tests and testing platforms with the intent of guiding and optimizing clinical treatment. Such tests have resulted in the generation of clinical data that suggest suboptimal response to antiplatelet agents such as aspirin and clopidogrel.In the case of both aspirin and clopidogrel, this suboptimal response has been termed resistance. Drug resistance would imply a lack of pharmacological response that has not been specifically investigated in many of the clinical studies performed to date. Rather, the term resistance has been used to describe various facets of platelet activation and aggregation relative to the testing method. Many of these measured parameters are not addressed in the therapeutic intent of the antiplatelet drug in question.

scholarly journals Delivery of Thyronamines (TAMs) to the Brain: A Preliminary Study

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1616
Author(s):  
Nicoletta di Leo ◽  
Stefania Moscato ◽  
Marco Borso' ◽  
Simona Sestito ◽  
Beatrice Polini ◽  
...  
Keyword(s):  
High Performance ◽  
In Vitro Model ◽  
New Drugs ◽  
Therapeutic Approaches ◽  
Neuroprotective Effects ◽  
Pharmacological Response ◽  
Preliminary Study ◽  
Vitro Model ◽  
The Brain

Recent reports highlighted the significant neuroprotective effects of thyronamines (TAMs), a class of endogenous thyroid hormone derivatives. In particular, 3-iodothyronamine (T1AM) has been shown to play a pleiotropic role in neurodegeneration by modulating energy metabolism and neurological functions in mice. However, the pharmacological response to T1AM might be influenced by tissue metabolism, which is known to convert T1AM into its catabolite 3-iodothyroacetic acid (TA1). Currently, several research groups are investigating the pharmacological effects of T1AM systemic administration in the search of novel therapeutic approaches for the treatment of interlinked pathologies, such as metabolic and neurodegenerative diseases (NDDs). A critical aspect in the development of new drugs for NDDs is to know their distribution in the brain, which is fundamentally related to their ability to cross the blood–brain barrier (BBB). To this end, in the present study we used the immortalized mouse brain endothelial cell line bEnd.3 to develop an in vitro model of BBB and evaluate T1AM and TA1 permeability. Both drugs, administered at 1 µM dose, were assayed by high-performance liquid chromatography coupled to mass spectrometry. Our results indicate that T1AM is able to efficiently cross the BBB, whereas TA1 is almost completely devoid of this property.

Digoxin Absorption From Tablets and Elixir

JAMA ◽  
1974 ◽  
Vol 230 (11) ◽  
pp. 1554 ◽  
Author(s):  
William J. Jusko
Keyword(s):  
Digoxin Absorption

ECT rekindles pharmacological response in schizophrenia

2009 ◽  
Vol 24 (8) ◽  
pp. 521-525 ◽  
Author(s):  
H. Hustig ◽  
R. Onilov
Keyword(s):  
Small Sample Size ◽  
Antipsychotic Agents ◽  
Pharmacological Therapy ◽  
Small Sample ◽  
Clinical Population ◽  
Control Group ◽  
Clinical Notes ◽  
Symptom Profiles ◽  
Pharmacological Response ◽  
Maintenance Ect

AbstractObjectiveThe aim of our naturalistic-observational study was to determine the efficacy and utility of electroconvulsive therapy (ECT) in clinical population of individuals with schizophrenia where pharmacological response was suboptimal.MethodsThe cohort comprised 27 patients suffering from schizophrenia with refractoriness to antipsychotic agents and with severe, disabling symptoms. They only interventional assessing tool was clinical global impression (CGI-S) performed at the baseline and at the end of the treatment.ResultsThe administration of ECT resulted in overall clinical improvement reflected in CGI scales and descriptions in clinical notes. On 12 months follow-up period, 10 patients (37.1%) maintained improvement and were able to continue with pharmacological therapy only, suggesting its rekindling effect, especially with Clozapine. Conversely, 17 patients (62.9%) deteriorated and required an additional course of ECT to maintain improvement. In some cases, maintenance ECT treatment was required. The group who engaged in self-harming behaviour at baseline demonstrated they were more likely to relapse into psychosis at the end of the first course of ECT, their self-harming behaviour abated, especially when maintenance ECT was undertaken.ConclusionsAlthough limited by lack of control group, small sample size, heterogeneous symptom profiles and various concurrent neuroleptic agents, the ECT proved as valuable and safe augmentative procedure when unsatisfactory response to pharmacological interventions had been demonstrated prior to interventions. This effect was evident despite the chronicity of the illness.

Dose-dependent Pharmacological Response to Rituximab in the Treatment of Antineutrophil Cytoplasmic Antibody-Associated Vasculiti

2021 ◽  
pp. jrheum.210361
Author(s):  
Jason M. Springer ◽  
Ryan S. Funk
Keyword(s):  
B Cell ◽  
Antineutrophil Cytoplasmic Antibody ◽  
High Dose ◽  
Dosing Regimen ◽  
Dosing Interval ◽  
Cell Counts ◽  
Pharmacological Response ◽  
Trough Concentrations ◽  
Cell Repopulation ◽  
Trough Plasma

Objective Rituximab (RTX) is effective in induction and maintenance of remission in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). However, uncertainty remains regarding the optimal maintenance dosing regimen. This work evaluates the relationship between variability in RTX dosing and pharmacological response in AAV. Methods A prospective cohort of AAV patients (n=28) with either GPA (n=23) or MPA (n=5) receiving maintenance RTX therapy were followed in a single tertiary care academic medical center over a 2-year period. Patient demographics, RTX dosing information, and trough plasma RTX levels were collected along with laboratory measures of pharmacologic response, including B-cell counts and ANCA titers. Results RTX dosing information from 94 infusions with 59 trough samples were collected with a mean±SD dose of 640±221 mg, dosing interval of 210±88 days, and trough plasma RTX concentration of 622±548 ng/mL. RTX trough concentrations were associated with RTX dose (ρ=0.60, p<0.0001) and dosing interval (ρ=-0.55, p<0.0001). RTX dosing intensity (mg/d) was associated with RTX trough concentrations (ρ=0.57, p<0.0001). Higher dosing intensities were associated with undetectable B-cell repopulation (p<0.0001), but not negative ANCA titers (p=0.6). Stratification of dosing intensities based on the standard dosing regimen of 500 mg every six months (2.4 to 3.3 mg/d) demonstrated that this regimen was associated with B-cell repopulation in 8 of 17 doses (47%) compared to 0 of 23 doses (0%) with the high-dose regimen (>3.3 mg/d) (p<0.0001). Conclusion RTX maintenance dosing of 500 mg every six months may be inadequate to maintain B-cell depletion in the treatment of AAV.

scholarly journals Pharmacological response of human cardiomyocytes derived from virus-free induced pluripotent stem cells

2011 ◽  
Vol 91 (4) ◽  
pp. 577-586 ◽  
Author(s):  
Ashish Mehta ◽  
Ying Ying Chung ◽  
Alvin Ng ◽  
Fahamy Iskandar ◽  
Shirhan Atan ◽  
...  
Keyword(s):  
Stem Cells ◽  
Induced Pluripotent Stem Cells ◽  
Pluripotent Stem Cells ◽  
Human Cardiomyocytes ◽  
Pharmacological Response ◽  
Induced Pluripotent
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