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Hormones

Hormones are biochemicals produced by the glands in a body. Hormones help to regulate the body's functions. They control hunger, mood, sleep, growth, and a number of other functions.

2,196 Questions

Does adrenaline burn fat?

Adrenaline can help mobilize fat stores for energy during fight-or-flight responses, but it does not directly burn fat on its own. It activates receptors on fat cells, releasing fatty acids into the bloodstream, which can be used as fuel by the body. Factors like exercise and diet play a more significant role in fat burning.

What is cortisol stem test?

The cortisol stimulation test, also known as the cosyntropin stimulation test, is a medical test used to diagnose adrenal insufficiency. It involves measuring the cortisol levels in the blood before and after the injection of cosyntropin, a synthetic form of adrenocorticotropic hormone (ACTH). This test helps assess the ability of the adrenal glands to produce cortisol in response to stimulation.

Gastrin secretin and cholecystokinin are examples of?

Gastrin, secretin, and cholecystokinin are examples of hormones that play roles in the regulation of the digestive system. Gastrin stimulates gastric acid secretion, secretin stimulates pancreatic bicarbonate secretion, and cholecystokinin stimulates gallbladder contraction and pancreatic enzyme secretion.

What are two effects of Angiotensin II?

Angiotensin II has 4 effects: (overall effect is to increase Blood Pressure and Blood Volume)

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1. The adrenal cortex (Zona Glomerulosa)

2. Triple effect on the Nervous System

3. Supraoptic nucleus of the hypothalamus

4. Vasoconstricts smooth muscle

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1. There are Angiotensin II receptors in the Zona Glomerulosa - stimulates release of Aldosterone

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2. Direct effect on the sympathetic nervous system, increasing output. Second effect on postganglionic nerve endings inhibiting the reabsorption of Norepinephrine (i.e. increasing concentration of neurotransmitter - increasing stimulation). Third effect on reception of tissue to NE.

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3. Stimulates Supraoptic nucleus to release Anti Diuretic Hormone

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4. Direct effect on smooth muscle of a. venous system (increasing venous return, stroke volume and therefore contractility of heart muscle and cardiac output - increasing systolic blood pressure). b. arterial system (increasing resistance to blood flow, and increasing diastolic blood pressure).

Is it possible that excess adrenaline causes atrial fibrillation?

Excess adrenaline can trigger atrial fibrillation in some individuals, particularly those with underlying heart conditions. Adrenaline can increase heart rate and put stress on the heart, potentially leading to irregular heart rhythms like atrial fibrillation. It is important for individuals experiencing symptoms to consult with a healthcare provider for proper evaluation and management.

Where does insulin go?

Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. It travels through the bloodstream to various tissues and organs in the body, where it helps to facilitate the uptake and storage of glucose for energy production.

What is the function of parathyroid hormone?

Parathyroid hormone helps regulate calcium levels in the body by increasing the amount of calcium in the blood. It does this by stimulating the release of calcium from bones, increasing the absorption of calcium from the intestines, and reducing the excretion of calcium by the kidneys.

How long does the effects of adrenaline lasts in the human body?

To improve the last answer, adrenaline is a drug that your body produces which I believe last about a minute to two minutes, but also depends on the amount of shock you undergo.

The effects will be as long as you are under an adrenaline rush. As soon as the rush wears off, your body gets a noradreanaline (Impove the spelling, if needed.) shot, and, right away, the effects of adrenaline will wear off. I hope this answers your question?

What do all hormones have in common?

Hormones are chemicals produced by the body's glands that travel through the bloodstream to regulate various physiological processes such as metabolism, growth, and reproduction. They all act as chemical messengers, binding to specific receptors on target cells to initiate a response and maintain homeostasis in the body.

Does oxytocin come from a plant?

I am reviewing a paper for JEP that says the oxytocin like activity from a plant of Ficus family. Interestingly I was searching some works for that review, when I came accross this question. I will do some study and for some one interested do contact the JEP or krishnakaphlevet@yahoo.com for specific queery.

What increases the reabsorption of Na when stimulated by aldosterone?

Aldosterone stimulates the reabsorption of Na in the kidney by increasing the activity of the Na+/K+ ATPase pump in the distal convoluted tubule and collecting ducts, which pumps Na+ out of the tubular lumen and into the blood. Additionally, aldosterone increases the expression of epithelial sodium channels (ENaC) on the luminal membrane of tubular cells, facilitating Na+ reabsorption.

What is a unit of vasopressin equal to in milligrams?

Vasopressin is typically measured in international units (IU), not milligrams. The conversion factor between units and milligrams may vary depending on the specific formulation of vasopressin being used. It is important to consult a healthcare provider or a pharmacist for accurate dosing information.

What are the insulin indication?

Insulin is always used for the treatment of insulin-dependent diabetes mellitus (type I diabetes) and occasionally also for the treatment of therapy refractory non-insulin-dependent diabetes mellitus (type II). This therapy is obligatory for individuals with ketoacidosis and it can be taken into consideration for all subjects who remain symptomatic, lose weight, or have continuously high blood glucose concentrations (in fasting state more than 7-8 mmol/l, postprandial more than 10-12 mmol/l) despite another treatment. Insulin can also become temporarily necessary during surgical interventions or acute diseases.

How is bacteria used to make insulin?

Human plasmids introduced into the bacteria stimulate insulin production.

A special enzyme is used to cut out the insulin gene from a human cell. It is attached to a bacterial chromosome which is also split open by an enzyme. The gene is then transferred into a bacterial cell. The gene makes the bacterial cell produce insulin.

How do glucagon and insulin work together?

Insulin is secreted when blood sugar rises. It works by stimulating receptors on tissue cells to escort glucose into the cells. It all suppresses glucagon, hormone-sensitive lipase (a hormone responsible for mobilizing and using fat stores) and suppresses the appetite centers in the brain.

Glucagon is secreted when blood sugar is low. It triggers gluconeogenesis in the liver, which means that fats and proteins are converted into glucose and released into the blood. It also is responsible for mobilizing glycogen stores, suppresses insulin, and mobilizes fat stores.

So glucagon and insulin not only do opposite things, they are antagonistic to each other, meaning when one is high the other one is low. They do not technically work "together".

High levels of insulin are common in those who consume excessive calories and excessive carbohydrate foods. For those who are sensitive to the effects of insulin, this can cause reactive hypoglycemia and obesity.

From which cell is insulin derived from?

islets of langerhans. tho i guess all cells have the ability to produce insulin.

How do you decrease the DHT-dihydrotestosterone from the body?

To lower DHT levels in the body, you can consider taking supplements like saw palmetto or stinging nettle root, incorporating foods rich in antioxidants and zinc into your diet, reducing stress levels, and avoiding products or behaviors that can increase DHT production, such as anabolic steroids or excessive alcohol consumption. It's important to consult with a healthcare provider before making any significant changes to your DHT levels.

What is the effect of antidiuretic hormone on potassium concentration and excretion?

Antidiuretic hormone (ADH) decreases the amount of sodium in your body and when ever sodium levels go down potassium levels go up (same is true for visa versa) so the amount of Potassium should increase when there is an increase in ADH.

Is insulin a steroid?

The function of insulin is too maintain the blood glucose level. So, really, it controls the level of sugar in your body. People with diabetes have trouble controlling their blood glucose level as their insulin doesn't work very well. People with Type 1 Diabetes have to take insulin medications, while people with type 2 diabetes can control their blood glucose levels with diet.

How does the oxytocin causes increase in fruit size?

Oxytocin does not directly cause an increase in fruit size. Oxytocin is a hormone involved in social bonding and reproductive functions in animals. Fruit size is primarily influenced by genetic factors, growing conditions (such as sunlight, nutrients, water), and other physiological processes within the plant.

Why is human insulin preferable to animal insulin?

Human insulin is preferable to animal insulin because it is made through genetic engineering, ensuring higher purity and reducing the risk of allergic reactions. Additionally, human insulin closely mimics the natural insulin produced by the human body, which leads to more predictable and consistent results in managing diabetes. Lastly, human insulin is now more widely available and cost-effective compared to animal-derived insulin.

If adrenaline is a hormone why is its effect more like those of the nervous system explain this statement?

Adrenaline (aka epinephrine) is a hormone, but bears striking resemblance to the neurotransmitters used in your nervous system.

You see, your nervous system works by a series of synaptic junctions. That is, all your nerve cells are lined up from head to tail, and depolarization waves carry messages down the length of the cells. Synapases are the small gaps between each cell and the next in line. Once the depolarization wave gets to the end of the cell, it cannot just "jump the gap", but it signals the cell to release neurotransmitters. The neurotransmitters are molecules that fit like a lock and key into receptors on the next cell in line. When the neurotransmitters make contact with the receptors on the next cell, it causes a depolarization wave in that one as well, and the process goes on.

In the case of the sympathetic nervous system (your fight or flight nerves), the main neurotransmitter is called norepinephrine. It is what is used in these tiny doses at the end of each nerve cell (generally). When epinephrine (adrenaline, to use the British term) is released from your adrenal gland, it travels through the blood stream and hits the same receptors that norepinephrine normally hits. It is what we call a "direct agonist response." This causes general sympathetic (fight or flight) reactions, such as bronchial dilation, increased heart rate, blood vessel dilation, capillary contraction, and pupil dilation.

I wish I could draw the molecules epinephrine and norepinephrine on here, and you would be able to see how similar they are and why they would both bind to the same receptors. I suggest looking up their structures for a better idea.

What are leukotrienes?

they are amino acid base chemicals made by allergy or immune mediator cells. Leukotrienes are believed to be the causative chemicals in delayed hypersensitivity and are also known as slow reacting substances of anaphylaxis.

Which part of the brain is perceived by the need for adrenaline?

The hypothalamus is the main contol center of the autonomic nervous system, and when adrenaline, also called epinephrine is needed, it sends a neural message to the adrenal medulla so it can be released quickly into the blood stream, and since it is a vasoconstrictor, your blood pressure goes up quite rapidly preparing your body for the alarm response which is part of the flight or flight mechanism; part of the sympathetic division of the autonomic system.

Why is the short-term secretion of adrenaline important for athletes running in a one hundred-meter race?

The short-term secretion of adrenaline helps increase heart rate, blood flow to muscles, and energy availability by breaking down glycogen. This can improve performance by enhancing speed, strength, and reaction time during a quick and intense 100-meter race.