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

Gestalt Principles of Perception01:21

Gestalt Principles of Perception

357
Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
357
Fixed Action Patterns01:06

Fixed Action Patterns

16.1K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
16.1K
Generalized Anxiety Disorder01:30

Generalized Anxiety Disorder

169
Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...
169
Assessment of the Gastrointestinal System II: Health Perception Pattern01:29

Assessment of the Gastrointestinal System II: Health Perception Pattern

148
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
148
Scatter Plot01:15

Scatter Plot

7.1K
The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:
7.1K
Patterns of Fever01:26

Patterns of Fever

2.7K
Before understanding the types and patterns of fever, it is essential to know its phases.
2.7K

You might also read

Related Articles

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

Sort by
Same author

Corrected Structure of the 5' Flanking Region of Arylsulfatase Gene of the Sea Urchin, Hemicentrotus pulcherrimus: (5' flanking sequence/sea urchin/arylsulfatase gene/G-string).

Development, growth & differentiation·2023
Same author

Expression of Na

Development, growth & differentiation·2023
Same author

Detection and characterization of the cis-element in the first intron of the Ars gene in the sea urchin.

Development, growth & differentiation·2023
Same author

The Effects of lithium and Zinc Ions on the Pattern of Acidic Glycans in the Sea Urchin (Hemicentrotus pulcherrimus) Embryo: (sea urchin embryo/lithium/zinc/acidic glycan/UEA-I).

Development, growth & differentiation·2023
Same author

Effects of Aphidicolin on Arylsulfatase Gene Expression in Sea Urchin Embryos: (arylsulfatase/aphidicolin/gene expression/sea urchin embryo).

Development, growth & differentiation·2023
Same author

Melittin, a Component of Bee Venom, Activates Unfertilized Sea Urchin Eggs: (melittin/activation/sea urchin egg).

Development, growth & differentiation·2023

Related Experiment Video

Updated: Jul 27, 2025

Understanding Cerebellar Pattern Formation
13:18

Understanding Cerebellar Pattern Formation

Published on: November 1, 2007

5.3K

GENERAL PATTERN,

Koji Akasaka1, Hiroshi Terayama1

  • 1Zoological Institute, Faculty of Science, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan.

Development, Growth & Differentiation
|June 7, 2023
PubMed
Summary

Sea urchin embryo glycosaminoglycans (GAGs) were fractionated, revealing distinct developmental changes. Heparin-like and dermatan sulfate-like GAGs were identified, with specific fractions localized to cellular components.

Area of Science:

  • Developmental Biology
  • Marine Biology
  • Biochemistry

Background:

  • Glycosaminoglycans (GAGs) are crucial in cellular processes.
  • Sea urchin embryos provide a model for studying early development and GAG synthesis.

Purpose of the Study:

  • To characterize the GAG composition of sea urchin embryos during development.
  • To identify specific GAGs and their cellular localization.

Main Methods:

  • Preparation and chromatographic separation of GAGs from sea urchin embryos.
  • Analysis of GAG fractions using 35SO4-labeling and DEAE-cellulose chromatography.
  • Subcellular fractionation to determine GAG localization.

Main Results:

  • GAGs were separated into nonacidic (P) and acidic (A-F) fractions.

More Related Videos

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data
14:27

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Published on: June 26, 2013

15.7K
Pattern Generation for Micropattern Traction Microscopy
09:26

Pattern Generation for Micropattern Traction Microscopy

Published on: February 17, 2022

2.3K

Related Experiment Videos

Last Updated: Jul 27, 2025

Understanding Cerebellar Pattern Formation
13:18

Understanding Cerebellar Pattern Formation

Published on: November 1, 2007

5.3K
Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data
14:27

Identification of Disease-related Spatial Covariance Patterns using Neuroimaging Data

Published on: June 26, 2013

15.7K
Pattern Generation for Micropattern Traction Microscopy
09:26

Pattern Generation for Micropattern Traction Microscopy

Published on: February 17, 2022

2.3K
  • Fractions B and C showed the highest radioactivity, while P and A decreased during development.
  • Fraction E contained heparin-like (AMPS-1) and dermatan sulfate-like (AMPS-2) GAGs, and fraction F contained a sulfated fucogalactan-like glycan (F1).
  • A sulfated polysialic acid-like glycan (S1) was found in fraction C.
  • AMPS-2, E1, and F1 were found in EDTA extracts of gastrulae.
  • AMPS-1 localized to mitochondria-rich fractions, and S1 to yolk granule-rich fractions.

    • Conclusions:

    • Distinct GAGs, including heparin-like and dermatan sulfate-like species, are synthesized during sea urchin embryogenesis.
    • The developmental changes in GAG composition suggest roles in embryonic development.
    • Specific GAGs are localized to different subcellular compartments, indicating functional specialization.