What are these prostaglandins? Why are they so important to our bodies?

What are these prostaglandins? Why are they so important to our bodies?

Today we are going to talk about a small chemical substance that is produced inside our body and works very strangely. This is called prostaglandins . You may not have heard this name before. But, do you know how much these little things affect our body's health and daily processes! So, today we will talk about these prostaglandins in a simple, easy-to-understand way.

What exactly are prostaglandins?

Simply put, prostaglandins are a group of lipids that are produced in our bodies when there is tissue damage or infection, and they act like hormones. There are many different types of them, and they help control many essential processes in our bodies.

Think of them as little messengers inside our bodies. When there's a problem somewhere, these messengers are formed right there and signal other cells to do what's needed.

Is this also hormonal?

You might be thinking, "So this is a type of hormone?" Actually, prostaglandins are a type of lipid that has hormone-like properties. Lipids are fatty acids or their derivatives. Our bodies make these prostaglandins from a fatty acid called arachidonic acid.

These are called hormones because they coordinate various activities in our body and tell the body what to do and when to do it.

But, these are different from real hormones. How do you know? Prostaglandins don't work like hormones produced by glands in our endocrine system and released into the blood. Instead, they are produced by our tissues at the site of damage or infection, where the action is taking place. That's what makes them special.

What service do prostaglandins provide to our bodies?

In fact, there are several types of prostaglandins, and there are also different receptors that respond to them. This means that their effects can be seen in almost every part of our body. The effect of a prostaglandin depends on several factors:

  • The organ or tissue to which it is connected.
  • The receptor it binds to.
  • A process or physiological condition occurring in the body.

Let's look at some of the main functions of these prostaglandins:

  • It helps to initiate blood clot formation at the site of an injury, or it can even stop it.
  • Blood vessels widen (vasodilation) or narrow (vasoconstriction), which affects blood flow .
  • Helps the healing process .
  • It causes inflammation . This is what causes swelling and redness when a wound occurs.
  • It helps to start labor during pregnancy (labor induction) .
  • During menstruation, it causes the uterus to contract and helps shed the uterine lining (endometrium).
  • Related to ovulation .
  • It can cause fever .
  • Controlling how you feel pain .
  • Helps reduce pressure inside the eye.
  • Reduces stomach acid secretion.
  • The smooth muscles in our gastrointestinal tract contract or relax.
  • It controls the activity of several other hormones.

The most important thing is that prostaglandins have a very short half-life. That means they only work for a very short time. So, they can only affect the cells that are nearby. They can be made by various tissues in our body.

Let's take an example from everyday life?

Imagine you cut your finger. Even a small wound can do a lot of work. Here's how prostaglandins help:

1. Stops bleeding: First, prostaglandins are released from the tissues of the cut. These tell platelets in the blood to "come together quickly and close the wound, stop the bleeding." Then a blood clot forms there.

2. Controls blood vessels: Next, another type of prostaglandin comes from the tissues at the site of the injury and causes the blood vessels to contract slightly. This is called vasoconstriction . This reduces bleeding even further.

3. Inflammation (swelling): Then, prostaglandins are released, which cause inflammation. These cause fluid to leak from the blood vessels into the tissues, causing the wound to swell, become red, and feel hot. Don't worry, this swelling is for the good. This is because it stops things like germs that could have entered the wound from going to other parts of the body. These inflammatory prostaglandins also do something else. That is, they bring white blood cells called phagocytes to the wound. These cells are the ones that 'eat' germs and dead cells and clean the wound.

4. The blood clot is removed when it heals: Finally, when the wound is fully healed, prostaglandins come back in and dissolve the blood clot and remove it. Because it doesn't need to be there anymore.

Have you seen how much prostaglandins work even on a small wound?

So, are prostaglandins good or bad?

This is a very important question. Under normal circumstances, prostaglandins are essential, natural substances for our bodies. They play a big role in regulating natural bodily processes like pain and inflammation. The normal inflammatory process is actually a way for our bodies to protect themselves from further damage.

However, sometimes the amount of prostaglandins in our body can increase unnecessarily. That's when the problems begin. When that happens, persistent inflammation and unbearable pain can occur. In such cases, the excess prostaglandins can lead to chronic diseases and uncomfortable symptoms.

For example, although prostaglandins are essential for menstruation, if they increase too much, painful and heavy menstrual bleeding (menorrhagia) can occur.

The role of prostaglandins during pregnancy

During pregnancy and childbirth, cells in the uterus produce prostaglandins. These help dilate the cervix and cause uterine contractions. These contractions help push the baby down the birth canal.

Also, doctors sometimes use synthetic prostaglandins to induce labor if they recommend that labor begin before it naturally begins.

How are prostaglandins used in medicine?

Doctors use several types of synthetic prostaglandins to treat various conditions and situations. Let's look at a few examples.

  • Travoprost: Used to treat glaucoma and ocular hypertension.
  • Dinoprostone: Helps to dilate the cervix in mothers nearing the end of their pregnancy and initiate labor.
  • Alprostadil: This belongs to a class of drugs called vasodilators. They increase blood flow. They help treat some heart conditions in infants (e.g., cyanotic heart disease) and erectile dysfunction (ED) in men.
  • Misoprostol: In some cases, this medication is given rectally to stop excessive bleeding after childbirth (postpartum hemorrhage).
  • Iloprost: Used to treat pulmonary hypertension and a condition called CREST syndrome.

Because too much prostaglandin can cause unnecessary pain and inflammation, doctors use drugs that reduce or inhibit the effects of prostaglandins. The most common drugs that block prostaglandins in this way are the nonsteroidal anti-inflammatory drugs (NSAIDs). These are commonly called painkillers. Examples include aspirin-containing drugs (e.g. Excedrin®), ibuprofen (e.g. Advil®, Motrin®), and naproxen sodium (e.g. Aleve®).

What problems can be caused by prostaglandins?

Sometimes our bodies make too many prostaglandins, or not enough of them. This can lead to certain health problems and symptoms.

Excess prostaglandins

If the amount of prostaglandins in our body increases unnecessarily, it can cause unnecessary and unhelpful inflammation in the body. Here are some of the health conditions that can result:

  • Chronic pain.
  • Increased sensitivity to pain.
  • Painful menstruation or menstrual pain (dysmenorrhea).
  • Heavy menstrual bleeding.
  • Some types of cancer.

Lack of prostaglandins

Sometimes, the body may not produce enough prostaglandins to heal a wound or to start labor after a full pregnancy. Even if these conditions are not related to chronic conditions, synthetic prostaglandins can help. Doctors use synthetic prostaglandins to treat stomach ulcers and glaucoma. They can also help start labor.

When should you see a doctor about problems related to prostaglandins?

If you have persistent pain and/or chronic inflammation , be sure to see a doctor. While there can be many causes for these conditions, one possible cause is the action of prostaglandins in your body.

Dysmenorrhea is a common condition associated with prostaglandins and is a medical condition that requires medical attention. If you have painful menstrual periods that are not relieved by taking painkillers (NSAIDs), talk to your doctor. Sometimes, painful menstrual periods can be caused by an underlying medical condition, such as endometriosis or uterine fibroids .

Prostaglandins are naturally occurring, powerful substances that affect many aspects of our bodies. While they are essential for bodily processes like healing, too much prostaglandin can cause chronic pain, inflammation, and a reduced quality of life. If you have persistent pain or inflammation, see a doctor to find the cause and get an appropriate treatment plan.

Take-Home Message

Okay, so we've talked a lot about prostaglandins today, haven't we? The most important thing to remember is that these are like little chemical messengers that are produced in our bodies and that do a very important job.

  • These help with many things, such as healing wounds, stopping bleeding, controlling inflammation, aiding childbirth, and regulating menstruation.
  • Also, if these increase too much, problems such as pain and persistent swelling can occur.
  • If you have persistent pain, swelling, or severe menstrual cramps, it's important to seek medical advice without ignoring them, as they may be caused by an imbalance in these prostaglandins.

So, being aware of these amazing things happening inside our bodies will go a long way in maintaining our health.


` Prostaglandins, hormones, pain, swelling, inflammation, menstruation, pregnancy

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Let's take an example from everyday life?

Imagine you cut your finger. Even a small wound can do a lot of work. Here's how prostaglandins help:

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