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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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Toxidromes are specific patterns of symptoms resulting from toxic substance exposure. They help in the identification and treatment of poisoning. The symptoms of each toxidrome group indicate poisoning by a certain class of chemicals or drugs.1. Sympathomimetic: Stimulates the sympathetic nervous system. Symptoms include agitation, increased heart rate (HR), blood pressure (BP), respiratory rate (RR), temperature, and pupil size. Drugs like cocaine and amphetamines, along with tremors and...
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Drug toxicity quantifies the harm a compound causes to an organism, varying by dose and potentially impacting whole systems or specific organs like the liver. Toxic reactions may arise from venomous insect or spider bites, with effects ranging from mild symptoms to severe outcomes such as brain damage or death. Common forms of acute poisoning include ethanol intoxication and overdose of pain or fever medications, with substances like GHB and heroin being particularly lethal at doses close to...
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Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model
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Various Possible Toxicants Involved in Thyroid Dysfunction: A Review.

Jagminder K Bajaj1, Poonam Salwan2, Shalini Salwan3

  • 1Professor and Head, Department of Pharmacology, PIMS , Jalandhar, India .

Journal of Clinical and Diagnostic Research : JCDR
|February 20, 2016
PubMed
Summary

Environmental factors significantly impact thyroid dysfunction, especially in genetically susceptible individuals. Understanding these toxicants is crucial for reducing the global prevalence of thyroid disorders.

Keywords:
GoiterHypothyroidismThyroidThyroid disorders

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Area of Science:

  • Endocrinology
  • Environmental Health
  • Toxicology

Background:

  • Thyroid gland dysfunction affects approximately 300 million people worldwide.
  • Environmental factors are key contributors to autoimmune thyroid diseases in susceptible individuals, with genetics accounting for 70% of risk.
  • Understanding environmental influences is vital for managing thyroid disorders, particularly for those with a family history.

Purpose of the Study:

  • To highlight potential environmental toxicants that affect thyroid function.
  • To inform strategies for controlling excessive exposure and reducing thyroid disorder prevalence.

Main Methods:

  • This article reviews existing knowledge on environmental agents and their association with thyroid dysfunction.
  • It emphasizes the importance of direct measurement of toxicant exposure in relation to an individual's thyroid status for ideal study design.

Main Results:

  • Environmental factors play a significant role in the causation of thyroid diseases.
  • Identifying and understanding these factors are essential for accurate interpretation of thyroid status studies.

Conclusions:

  • Comprehensive knowledge of environmental toxicants influencing thyroid function is necessary.
  • Implementing measures to control exposure to these agents can help lower the incidence of thyroid disorders.