Related Experiment Videos
Adiponectin sparks an interest in calcium
Darren C Henstridge1, Mark A Febbraio
1Cellular and Molecular Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria 8008, Australia.
Cell Metabolism
|June 4, 2010
Summary
Adiponectin, through its receptor AdipoR1, triggers calcium influx in skeletal muscles. This process boosts mitochondrial growth, reduces oxidative stress, and improves endurance.
Area of Science:
- Endocrinology
- Metabolic Regulation
- Molecular Biology
Background:
- Adiponectin and its receptors (AdipoR1, AdipoR2) are key regulators of glucose and fatty acid metabolism through AMP-activated protein kinase.
- Previous research established the metabolic regulatory roles of adiponectin signaling.
Discussion:
- This study reveals a novel mechanism where adiponectin signaling, specifically via AdipoR1 in skeletal muscle, induces a significant calcium (Ca2+) influx.
- This Ca2+ influx is directly linked to enhanced mitochondrial biogenesis and reduced oxidative stress.
Key Insights:
- Adiponectin signaling via AdipoR1 directly controls mitochondrial biogenesis in skeletal muscle.
- The induction of Ca2+ influx by adiponectin is a critical step in enhancing cellular resilience and endurance capacity.
- This pathway highlights a new therapeutic target for metabolic and endurance-related disorders.
Outlook:
- Further investigation into the precise molecular players downstream of Ca2+ influx is warranted.
- Exploring the therapeutic potential of targeting this adiponectin-AdipoR1-Ca2+ pathway for metabolic diseases and performance enhancement.
- Investigating the role of this pathway in other tissues and its broader implications for whole-body energy homeostasis.
Related Concept Videos
Synthesis and Functions of Calcitonin
3.9K
Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...
3.9K
Hormones and Bone Tissue
3.5K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
3.5K
Skeleton and Calcium Homeostasis
5.5K
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
5.5K
Calmodulin-dependent Signaling
5.8K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
5.8K
Roles of Electrolytes: Calcium and Phosphate
971
Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
The calcium concentration in blood plasma is primarily...
The calcium concentration in blood plasma is primarily...
971
Feedback Regulation of Calcium Concentration
3.8K
Calcium is an essential signaling molecule required for various cellular functions. Calcium pumps and ion channels on cell and organellar membranes, such as those on the endoplasmic reticulum (ER), regulate calcium concentrations inside the cell. They remain closed, keeping the cytosolic calcium levels low at a resting state.
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
3.8K