Related Experiment Video
Updated: May 3, 2026

07:45
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
10.1K
The latest waves in calcium signaling
1Department of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. cmontell@jhmi.edu
Cell
|August 13, 2005
Summary
Calcium (Ca2+) is vital for cell functions, acting as a universal second messenger. Dysregulation of Ca2+ contributes to diseases like cardiac hypertrophy and neuronal death, highlighting its therapeutic potential.
Area of Science:
- Cell Biology
- Biochemistry
- Physiology
Background:
- Calcium ions (Ca2+) are essential intracellular second messengers regulating diverse cellular processes.
- Aberrant intracellular Ca2+ levels are implicated in numerous pathologies, including cardiac hypertrophy and neuronal ischemia.
- Calcium-binding proteins play critical roles in mediating Ca2+ signaling pathways.
Framework:
- The study focuses on the multifaceted roles of Ca2+ and its binding proteins in cellular function.
- Mechanistic insights into Ca2+ homeostasis are explored to understand its contribution to health and disease.
- The meeting highlighted the significance of Ca2+ signaling in various physiological and pathological contexts.
Implementation:
- Mechanistic studies investigating Ca2+ dynamics and interactions with binding proteins were discussed.
- Research explored how alterations in Ca2+ homeostasis contribute to specific disease states.
- The integration of findings from different research approaches was emphasized.
Implications:
- Understanding Ca2+ signaling offers potential for novel therapeutic strategies.
- Targeting Ca2+ pathways may provide new treatments for diseases linked to Ca2+ dysregulation.
- Further research into Ca2+ homeostasis could lead to advancements in managing conditions like cardiac and neurological disorders.
Related Concept Videos
Communication
8.0K
Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
8.0K
Amplifying Signals via Second Messengers
6.1K
Many receptor binding ligands are hydrophilic; they do not cross the cell membrane but bind to cell-surface receptors. Thus, their message must be relayed by second messengers present in the cell cytoplasm. There are several second messenger pathways, each with its own way of relaying information. For example, the G protein-coupled receptors can activate both phosphoinositol and cyclic AMP (cAMP) second messenger pathways. The phosphoinositol pathway is active when the receptor induces...
6.1K
Propagation Speed of Electromagnetic Waves
3.1K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.1K
Signal Transduction: Overview
8.6K
Cells respond to many types of information, often through receptor proteins positioned on the membrane. They respond to chemical signals, such as hormones, neurotransmitters, and other signaling molecules, initiating a series of molecular reactions to produce an appropriate response. This is called signal transduction. Cells also coordinate different responses elicited by the same signaling molecule via mediators, allowing molecular cross-talk.
Typically, signal transduction involves three...
Typically, signal transduction involves three...
8.6K
Signal and System
1.7K
A signal x(t) is a set of data or a time function representing a variable of interest. Signals typically convey information about a phenomenon, such as atmospheric temperature, humidity, human voice, television images, a dog's bark, or birdsongs. More generally, a signal can be a function of more than one independent variable. For instance, images depend on horizontal and vertical positions and can be regarded as two-dimensional signals. However, this text will focus on one-dimensional...
1.7K
Classification of Signals
1.6K
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
1.6K

