Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hormonal Regulation01:40

Hormonal Regulation

37.7K
Hormones regulate a significant portion of digestion through activation of the neuroendocrine system. The neuroendocrine system of digestion contains many different hormones all with multiple functions that are both, directly and indirectly, involved in digestion.
37.7K
Hormones Secreted by the Stomach01:25

Hormones Secreted by the Stomach

2.9K
Enteroendocrine cells, accounting for only 1% of stomach epithelial cells, play a significant role in digestion and are classified by their digestive hormone secretions.
Each of these hormones secreted by different enteroendocrine cells plays a unique role in digestion. Here are a few examples:
2.9K
Gonadal and Placental Hormones01:24

Gonadal and Placental Hormones

3.9K
The gonads, namely the testes in males and the ovaries in females, are pivotal in producing gonadal hormones that orchestrate the intricate processes of sexual development and reproduction.
In males, testosterone is the primary gonadal androgen. It plays a central role in the maturation of male reproductive organs — the penis and testes. Additionally, testosterone is instrumental in the development of secondary sexual characteristics — a deep voice as well as facial and pubic hair...
3.9K
Hormones of the Pituitary Gland01:27

Hormones of the Pituitary Gland

14.2K
The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
14.2K
Regulation of the Digestive System01:25

Regulation of the Digestive System

3.7K
Digestive activity regulation hinges on three primary components. Activation is prompted by a multitude of mechanical and chemical indicators, primarily detected by receptors within the stomach and intestines' walls. These receptors predominantly respond to factors such as mechanical stretching of the organ walls, changes in pH and osmolarity, and the presence of digesting materials and their by-products.
The effectors in this regulation system are glands and smooth muscles. Activation of...
3.7K
Gut-Brain Axis01:22

Gut-Brain Axis

249
The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such...
249

You might also read

Related Articles

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

Sort by
Same author

Calcium/calmodulin-dependent kinases can regulate the TSH expression in the rat pituitary.

Journal of endocrinological investigation·2021
Same author

Differential expression of IL-8 and IL-8 receptors in benign, borderline and malignant ovarian epithelial tumours.

Cytokine·2013
Same author

The Splenic White Pulp in Chronic Lymphocytic Leukaemia: A Microenvironment Associated with CR2 (CD21) Expression, Cell Transformation and Proliferation.

Leukemia & lymphoma·2010
Same author

Purified malignant mammary epithelial cells maintain hormone responsiveness in culture.

British journal of cancer·2003
Same author

Rapid flow carbon dioxide laparoscopy disperses cancer cells into the peritoneal cavity but not the port sites in a new rat model.

Surgical endoscopy·2002
Same author

Estrogen receptor beta in breast cancer.

Endocrine-related cancer·2002
Same journal

Mitochondrial regulation of brain development: evidence from zebrafish models.

Fish physiology and biochemistry·2026
Same journal

Olfactory response of brown-marbled grouper (Epinephelus fuscoguttatus) juveniles to amino acids as determined through electro-olfactogram.

Fish physiology and biochemistry·2026
Same journal

Protective effects of dietary Ocimum basilicum and Thymus vulgaris essential oils on growth performance, immune response, and disease resistance following challenge with Aeromonas hydrophila in Nile Tilapia (Oreochromis niloticus).

Fish physiology and biochemistry·2026
Same journal

Effects of IGF1 and GnRH on gonadotropin subunits in the pituitary cells of the Indian freshwater catfish, Heteropneustes fossilis (Bloch).

Fish physiology and biochemistry·2026
Same journal

MiR-8159-x and miR-200-z induced liver injury of tsinling lenok trout through endoplasmic reticulum and mitochondria interaction under high-temperature stress.

Fish physiology and biochemistry·2026
Same journal

Heatwave duration modulates physio-biochemical responses in genetically improved farmed tilapia (Oreochromis niloticus) under simulated conditions.

Fish physiology and biochemistry·2026
See all related articles

Related Experiment Video

Updated: May 6, 2026

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
07:00

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine

Published on: February 26, 2019

9.1K

Gut hormones in cyclostomes.

S Van Noorden1

  • 1Histopathology Department, Royal Postgraduate Medical School, Du Cane Road, W12 ONN, London, England.

Fish Physiology and Biochemistry
|November 14, 2013
PubMed
Summary
This summary is machine-generated.

Regulatory peptides in lampreys and hagfishes show similarities to those in higher vertebrates. Further research is needed to understand their molecular structure and biological roles.

More Related Videos

Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise
10:07

Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise

Published on: January 18, 2011

17.0K
Gonadectomy and Blood Sampling Procedures in the Small Size Teleost Model Japanese Medaka Oryzias latipes
05:31

Gonadectomy and Blood Sampling Procedures in the Small Size Teleost Model Japanese Medaka Oryzias latipes

Published on: December 11, 2020

4.1K

Related Experiment Videos

Last Updated: May 6, 2026

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine
07:00

Mechanisms Underlying Gut Hormone Secretion Using the Isolated Perfused Rat Small Intestine

Published on: February 26, 2019

9.1K
Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise
10:07

Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise

Published on: January 18, 2011

17.0K
Gonadectomy and Blood Sampling Procedures in the Small Size Teleost Model Japanese Medaka Oryzias latipes
05:31

Gonadectomy and Blood Sampling Procedures in the Small Size Teleost Model Japanese Medaka Oryzias latipes

Published on: December 11, 2020

4.1K

Area of Science:

  • Comparative physiology
  • Neuroendocrinology
  • Evolutionary biology

Background:

  • Cyclostomes (lampreys and hagfishes) possess a complex system of endocrine cells and enteric nerves in their alimentary canal.
  • Regulatory peptides play crucial roles in physiological processes across various species.

Purpose of the Study:

  • To review the current knowledge of regulatory peptides in the digestive system of cyclostomes.
  • To highlight similarities and differences between cyclostome peptides and those found in higher vertebrates.

Main Methods:

  • Literature review of existing studies on cyclostome neuroendocrinology.
  • Immunochemical comparisons of cyclostome peptides with known vertebrate peptides.

Main Results:

  • Cyclostomes exhibit a diverse range of peptides in their intestinal endocrine cells, including those resembling glucagon, gastrin/cholecystokinin, peptide YY, substance P, vasoactive intestinal peptide, somatostatin, and insulin.
  • Enteric nerves in some lamprey species contain peptides similar to bombesin and calcitonin gene-related peptide, along with serotonin.

Conclusions:

  • Cyclostomes possess a broad repertoire of regulatory peptides comparable to higher vertebrates.
  • Significant gaps exist in understanding the molecular structure and physiological functions of these peptides in cyclostomes, necessitating further investigation.