9 research outputs found
Az új cukorbetegség ellenes gyógyszerjelölt BGP-15 hatása második generációs antipszichotikumok metabolikus mellékhatásaira
Improvement of Insulin Sensitivity by a Novel Drug Candidate, BGP-15, in Different Animal Studies
Improvement of Insulin Sensitivity by a Novel Drug Candidate, BGP-15, in Different Animal Studies
A novel insulin sensitizer drug candidate-BGP-15-can prevent metabolic side effects of atypical antipsychotics
The HSP co-inducer BGP-15 can prevent the metabolic side effects of the atypical antipsychotics. Cell Stress & Chaperones 17:517e521
Abstract Weight gain and dysfunction of glucose and lipid metabolism are well-known side effects of atypical antipsychotic drugs (AAPD). Here, we address the question whether a heat-shock protein (HSP) co-inducer, insulin sensitizer drug candidate, BGP-15, can prevent AAPD-induced glucose, lipid, and weight changes. We also examined how an AAPD alters HSP expression and whether BGP-15 alters that expression. Four different experiments are reported on the AAPD BGP-15 interventions in a human trial of healthy men, a rodent animal model, and an in vitro adipocyte cell culture system. Olanzapine caused rapid insulin resistance in healthy volunteers and was associated with decreased level of HSP72 in peripheral mononuclear blood cells. Both changes were restored by the administration of BGP-15. In Wistar rats, weight gain and insulin resistance induced by clozapine were abolished by BGP-15. In 3T3L1 adipocytes, clozapine increased intracellular fat accumulation, and BGP-15 inhibited this process. Taken together, our results indicate that BGP-15 inhibits multiple metabolic side effects of atypical antipsychotics, and this effect is likely to be related to its HSP co-inducing ability
Synergetic Insulin Sensitizing Effect of Rimonabant and BGP-15 in Zucker-Obes Rats
Abdominal obesity is referred for as a common pathogenic root of
multiple risk factors, which include insulin resistance,
dyslipidemia, hypertension, and a pro-atherogenic and pro-
inflammatory state. Irrespective of its psychiatric side
effects, rimonabant through blocking cannabinoid-1 receptor
(CB1R) induces an increase in whole body insulin sensitivity.
The aim of this work was to study the effect of selected doses
of another insulin sensitizer compound BGP-15, and rimonabant on
insulin resistance in Zucker obese rats with a promise of
inducing insulin sensitization together at lower doses than
would have been expected by rimonabant alone. We found that BGP-
15 potentiates the insulin sensitizing effect of rimonabant. The
combination at doses, which do not induce insulin sensitization
by themselves, improved insulin signaling. Furthermore our
results suggest that capsaicin-induced signal may play a role in
insulin sensitizing effect of both molecules. Our data might
indicate that a lower dose of rimonabant in the treatment of
insulin resistance and type 2 diabetes is sufficient to
administer, thus a lower incidence of the unfavorable
psychiatric side effects of rimonabant are to be expected
The HSP co-inducer BGP-15 can prevent the metabolic side effects of the atypical antipsychotics
A Novel Insulin Sensitizer Drug Candidate—BGP-15—Can Prevent Metabolic Side Effects of Atypical Antipsychotics
Hydroximic Acid Derivatives: Pleiotrophic Hsp Co-Inducers Restoring Homeostasis and Robustness
According to the "membrane sensor" hypothesis, the membranes physical properties and microdomain organization play an initiating role in the heat shock response. Clinical conditions such as cancer, diabetes and neurodegenerative diseases are all coupled with specific changes in the physical state and lipid composition of cellular membranes and characterized by altered heat shock protein levels in cells suggesting that these "membrane defects" can cause suboptimal hsp-gene expression. Such observations provide a new rationale for the introduction of novel, heat shock protein modulating drug candidates. Intercalating compounds can be used to alter membrane properties and by doing so normalize dysregulated expression of heat shock proteins, resulting in a beneficial therapeutic effect for reversing the pathological impact of disease. The membrane (and lipid) interacting hydroximic acid (HA) derivatives discussed in this review physiologically restore the heat shock protein stress response, creating a new class of "membrane-lipid therapy" pharmaceuticals. The diseases that HA derivatives potentially target are diverse and include, among others, insulin resistance and diabetes, neuropathy, atrial fibrillation, and amyotrophic lateral sclerosis. At a molecular level HA derivatives are broad spectrum, multi-target compounds as they fluidize yet stabilize membranes and remodel their lipid rafts while otherwise acting as PARP inhibitors. The HA derivatives have the potential to ameliorate disparate conditions, whether of acute or chronic nature. Many of these diseases presently are either untreatable or inadequately treated with currently available pharmaceuticals. Ultimately, the HA derivatives promise to play a major role in future pharmacotherapy