Biological Assay (also known as Bioassay, Bioassays): A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitat

NIH MeSH · D001681Analytical, Diagnostic and Therapeutic Techniques and Equipment

Biological Assay

Also known asBioassay · Bioassays · Assay, Biological · Biological Assays · Assays, Biological · Biologic Assay · Assay, Biologic · Assays, Biologic · Biologic Assays

Definition

A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc.

MeSH classification

  • E05.091

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Common questions about Biological Assay

What does Biological Assay mean in medicine?
A method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions. It includes virulence studies in animal fetuses in utero, mouse convulsion bioassay of insulin, quantitation of tumor-initiator systems in mouse skin, calculation of potentiating effects of a hormonal factor in an isolated strip of contracting stomach muscle, etc. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Biological Assay known by any other names?
Yes. Biological Assay is also referred to as Bioassay, Bioassays, Assay, Biological, Biological Assays in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Biological Assay sit in the medical classification?
Biological Assay falls under the broader medical category "Analytical, Diagnostic and Therapeutic Techniques and Equipment" in the MeSH hierarchy (tree numbers: E05.091). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Biological Assay?
For a plain-language explanation of Biological Assay - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Biological Assay" above.

Source: NIH MeSH 2026 (D001681) — National Library of Medicine, public domain. View official MeSH record ↗