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 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!

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.

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

Allergic Reactions

Allergic Reactions

Contact-dependent Signaling

Contact-dependent Signaling

Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...

You might also read

Related Articles

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

Sort by

Same author

A Rare Genetic Cause of Erythrodermic Ichthyosis: Chanarin-Dorfman Syndrome.

Indian dermatology online journal·2026

Same author

American Thyroid Association 2026 Guidelines for Thyroid Disease in Preconception, Pregnancy, and Postpartum.

Thyroid : official journal of the American Thyroid Association·2026

Same author

Sharing a whole-/total-body [<sup>18</sup>F]FDG-PET/CT dataset with CT-derived segmentations: an ENHANCE.PET initiative.

Scientific data·2026

Same author

Spontaneous closure of partial maxillectomy defects using an acrylic removable partial dental prosthesis: A case series.

Journal of prosthodontics : official journal of the American College of Prosthodontists·2026

Same author

Comparison of severe maternal morbidity between pregnancy with subclinical hypothyroidism and overt hypothyroidism.

Acta obstetricia et gynecologica Scandinavica·2026

Same author

Is psoriatic arthritis a dissemination of cutaneous psoriatic TRM cells? Role of tissue-resident memory T cells (TRM) in psoriatic disease.

Current opinion in immunology·2025

Same journal

Severe Irritant Contact Dermatitis to <i>Cyperus Scariosus</i>: A Side Effect of Ayurvedic <i>Plava</i>.

Indian journal of dermatology·2026

Same journal

Extensive Grouped Papules on the Vulva in a Patient with Cervical Cancer.

Indian journal of dermatology·2026

Same journal

Facial Melanosis: A Comprehensive Review of Uncommon and Common Presentations with Personal Experience.

Indian journal of dermatology·2026

Same journal

Exploring AI as a Diagnostic Tool in Medical Imaging for Dermatopathological Diseases.

Indian journal of dermatology·2026

Same journal

Carotid Intima-Media Thickness and Retrobulbar Blood Flow in Patients with Psoriasis.

Indian journal of dermatology·2026

Same journal

Pyoderma Gangrenosum-Like Ulcer Secondary to Antiphospholipid Syndrome.

Indian journal of dermatology·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 14, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006

Authors' reply

Caroline T Nguyen¹, Siba P Raychaudhuri

¹Department of Medicine, VA Medical Center Sacramento and UC Davis School of Medicine, Division of Rheumatology, Allergy and Clinical Immunology, Hospital Way, Mather, CA 95655, USA.

Indian Journal of Dermatology

|February 2, 2013

Summary

No abstract available in PubMed .

Related Experiment Videos

Last Updated: May 14, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006