Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Feedback Loops

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.

Allergic Reactions

Allergic Reactions

Feedback Inhibition

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!

Proofreading

Proofreading

Proofreading

Proofreading

Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore, it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase Enzyme

Internal Receptors

Internal Receptors

Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can cross the hydrophobic core of the plasma membrane and bind to internal, or intracellular, receptors that reside within the cell. Many mammalian steroid hormones use this mechanism of cell signaling, as does nitric oxide (NO) gas.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Kynurenine Pathway Metabolite Levels in Drug Naïve and Risperidone Treated Schizophrenia: Insights From Systemic and Post-Mortem Brain Tissue Analysis.

Journal of neurochemistry·2026

Same author

Effect of Add-on Yoga-Based Intervention on Schizophrenia: A Randomized Controlled Trial.

Behavioral medicine (Washington, D.C.)·2026

Same author

The Brief Prakriti Inventory: Latent structure, reliability, and validity.

Wellcome open research·2026

Same author

Ayurvedic Therapeutic Regimen as an Add-On to Optimized Conventional Management of Parkinson Disease: Protocol for an Exploratory Randomized Controlled Trial Evaluating Clinical, Cortical Excitability, Neuroimmune, and Autonomic Function Parameters.

JMIR research protocols·2026

Same author

Yoga for Opioid Withdrawal and Autonomic Regulation: A Randomized Clinical Trial.

JAMA psychiatry·2026

Same author

Exploring Ayurveda's Potential in Parkinson's Disease: A Comprehensive Narrative.

Cureus·2025

Search research articles

Related Experiment Video

Updated: May 9, 2026

An In Vitro Approach to Photodynamic Therapy

An In Vitro Approach to Photodynamic Therapy

Published on: August 17, 2018

Author's reply

Bangalore N Gangadhar¹, Shivarama Varambally

¹Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bangalore, Karnataka, India.

International Journal of Yoga

|August 10, 2013

Summary

No abstract available in PubMed .

Related Experiment Videos

Last Updated: May 9, 2026

An In Vitro Approach to Photodynamic Therapy

An In Vitro Approach to Photodynamic Therapy

Published on: August 17, 2018