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

Biological Clocks and Seasonal Responses02:45

Biological Clocks and Seasonal Responses

The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
Circadian Rhythms and Gene Regulation02:19

Circadian Rhythms and Gene Regulation

The biological clock is involved in many aspects of regulating complex physiology in all animals. It was in 1935 when German zoologists, Hans Kalmus and Erwin Bünning, discovered the existence of circadian rhythm in Drosophila melanogaster. However, the internal molecular mechanisms behind the circadian clock remained a mystery until 1984, when Jeffrey C. Hall, Michael Rosbash, and Michael W. Young discovered the expression of the Per gene oscillating over a 24-hour cycle. In subsequent years,...
Model Approaches for Pharmacokinetic Data: Physiological Models01:15

Model Approaches for Pharmacokinetic Data: Physiological Models

Physiological models in pharmacokinetics are instrumental in understanding the distribution and elimination of drugs within the body. These models describe the drug concentration within target organs, influenced by factors such as drug uptake, tissue volume, and blood flow. Drug uptake is governed by the partition coefficient, which signifies the drug concentration ratio in tissue to that in the blood. The blood flow rate to a specific tissue is expressed as Qt, and the rate of change in tissue...
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response01:15

Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response

Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
Pharmacodynamic Models: Overview01:27

Pharmacodynamic Models: Overview

Pharmacodynamic (PD) responses describe the interaction between a drug and its biological target, culminating in a physiological effect. These responses can be classified into different types: continuous variables, such as blood glucose levels; categorical outcomes, like survival rates; and time-to-event metrics, such as disease progression. Understanding and modeling PD responses are critical for optimizing drug efficacy and safety.PD models describe the relationship between drug concentration...

You might also read

Related Articles

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

Sort by
Same author

The relationship between the pore architecture of MFI zeolites and isoamylene oligomerization.

Physical chemistry chemical physics : PCCP·2026
Same author

Automated Working Alliance Assessment in Psychological Counseling Using Gemini and XGBoost.

Entropy (Basel, Switzerland)·2026
Same author

Whole-genome resequencing revealed genetic diversity and the haplotype containing MC1R associated with black coat color in Liangshan sheep.

BMC genomics·2026
Same author

In-plane anomalous Hall effect in a low-dimensional system.

Nature materials·2026
Same author

Comorbidities, Utilization, and Quality of Care as Predictors of Diabetes Complications.

Journal of the American Board of Family Medicine : JABFM·2026
Same author

Preliminary Investigation into the Predation of <i>Pomacea canaliculata</i> by <i>Aquatica leii</i> Larvae.

Insects·2026

Related Experiment Video

Updated: Jun 4, 2026

A Computational Method to Quantify Fly Circadian Activity
13:05

A Computational Method to Quantify Fly Circadian Activity

Published on: October 28, 2017

A dynamic model for functional mapping of biological rhythms.

Guifang Fu1, Jiangtao Luo, Arthur Berg

  • 1Center for Statistical Genetics, Pennsylvania State University, Hershey, PA 17033, USA.

Journal of Biological Dynamics
|February 1, 2011
PubMed
Summary

This study introduces a new functional mapping framework using ordinary differential equations (ODEs) to analyze the genetic control of dynamic biological rhythms. The method offers novel insights into gene interactions and developmental pathways.

Keywords:
Biological rhythmDifferential equationFunctional mappingQuantitative trait loci

More Related Videos

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
06:53

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures

Published on: November 11, 2016

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
10:28

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease

Published on: July 24, 2019

Related Experiment Videos

Last Updated: Jun 4, 2026

A Computational Method to Quantify Fly Circadian Activity
13:05

A Computational Method to Quantify Fly Circadian Activity

Published on: October 28, 2017

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures
06:53

Parallel Measurement of Circadian Clock Gene Expression and Hormone Secretion in Human Primary Cell Cultures

Published on: November 11, 2016

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease
10:28

Dynamic Digital Biomarkers of Motor and Cognitive Function in Parkinson's Disease

Published on: July 24, 2019

Area of Science:

  • Quantitative genetics
  • Systems biology
  • Biomathematics

Background:

  • Functional mapping statistically analyzes quantitative trait loci (QTLs) regulating dynamic biological traits.
  • Differential equations are crucial for modeling complex biological processes like rhythms.
  • Integrating these approaches can enhance understanding of genetic regulation in dynamic systems.

Purpose of the Study:

  • To develop a novel functional mapping framework for dynamic biological rhythms.
  • To incorporate ordinary differential equations (ODEs) into genetic mapping.
  • To provide new insights into the genetic control of biological rhythms.

Main Methods:

  • Formulation of a new functional mapping framework.
  • Integration of ordinary differential equations (ODEs) to model dynamic biological rhythms.
  • Application of the Runge-Kutta fourth order algorithm for parameter estimation.

Main Results:

  • A novel statistical framework for analyzing genetic control of dynamic biological rhythms was established.
  • The method effectively integrates mathematical modeling with genetic mapping.
  • Parameter estimation for the ODE system was performed using the Runge-Kutta algorithm.

Conclusions:

  • The new functional mapping framework provides a powerful tool for studying the genetic basis of dynamic biological rhythms.
  • This approach offers deeper insights into gene interactions and developmental pathways governing biological rhythms.
  • The integration of ODEs advances the field of quantitative genetics for dynamic traits.