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Drug Toxicity: Risk factors01:24

Drug Toxicity: Risk factors

Adverse Drug Reactions (ADRs) are potential complications that arise during pharmacotherapy, influenced by multiple risk factors. Age plays a significant role; both neonates and the elderly are at heightened risk due to their respective immature and diminished metabolic and elimination processes. Gender also impacts ADRs, with females experiencing a 1.5 to 1.7-fold greater risk than males, which may be linked to pharmacokinetic, pharmacodynamic, and hormonal differences. Notably, neonates, the...
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Drug toxicities can be stratified into pharmacological, pathological, or genotoxic based on their mechanisms. The incidence and severity of these toxicities generally increase with the drug's concentration in the body and exposure time.Pharmacological toxicity is evident when the therapeutic effects of drugs overshoot into adverse reactions in a predictable, dose-dependent manner. Central nervous system (CNS) depression from barbiturates is a classic example, with effects escalating from...
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Related Experiment Video

Updated: May 25, 2026

Dose Uptake of Platinum- and Ruthenium-based Compound Exposure in Zebrafish by Inductively Coupled Plasma Mass Spectrometry with Broader Applications
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Developing central nervous system and vulnerability to platinum compounds.

G Bernocchi1, M G Bottone, V M Piccolini

  • 1Laboratorio di Biologia Cellulare e Neurobiologia, Dipartimento di Biologia Animale, Università di Pavia, Via Ferrata 1, 27100 Pavia, Italy.

Chemotherapy Research and Practice
|February 8, 2012
PubMed
Summary
This summary is machine-generated.

This study compared cisplatin (cisPt) and a new platinum compound (PtAcacDMS) for neurotoxicity during rat cerebellum development. PtAcacDMS showed lower neurotoxicity, suggesting a potentially safer alternative chemotherapy agent.

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Dose Uptake of Platinum- and Ruthenium-based Compound Exposure in Zebrafish by Inductively Coupled Plasma Mass Spectrometry with Broader Applications
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Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation
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Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation

Published on: June 17, 2015

Area of Science:

  • Neuroscience
  • Pharmacology
  • Developmental Biology

Background:

  • Platinum-based chemotherapy agents like cisplatin (cisPt) are vital in cancer treatment but can cause significant neurotoxicity.
  • Understanding the neurotoxic potential and reversibility of platinum compounds is crucial for developing safer anticancer drugs.
  • Cisplatin's mechanism involves DNA binding, leading to both therapeutic effects and side effects.

Purpose of the Study:

  • To compare the neurotoxicity of cisplatin (cisPt) with a novel platinum compound, [Pt(O,O'-acac)(γ-acac)(DMS)] (PtAcacDMS), during rat postnatal cerebellum development.
  • To evaluate the effects of these platinum compounds on critical developmental events in the cerebellum, including cell proliferation, migration, and neuronal differentiation.
  • To assess the potential of PtAcacDMS as a less neurotoxic alternative to cisPt.

Main Methods:

  • Comparative analysis of neurotoxicity and chemoresistance of cisPt and PtAcacDMS.
  • In vivo studies on rat postnatal cerebellum development, evaluating acute and late effects of drug treatments.
  • Assessment of cell proliferation and death in the external granular layer, granule cell migration, and Purkinje cell dendrite growth.

Main Results:

  • PtAcacDMS demonstrated lower neurotoxicity compared to cisPt in the developing rat cerebellum.
  • Both acute effects (cell proliferation/death, migration) and late effects (dendrite growth) were evaluated.
  • The study considered the presence of PtAcacDMS in the brain and its implications for blood-brain barrier permeability.

Conclusions:

  • Data suggest that PtAcacDMS exhibits a lower neurotoxic profile than cisPt.
  • PtAcacDMS warrants further investigation as a potentially safer platinum-based chemotherapeutic agent.
  • Considerations regarding blood-brain barrier permeability are important when evaluating PtAcacDMS's effects in the brain.