Have you ever heard of "Porphyria"? Let's talk about this rare disease!

A very complex and amazing process that takes place inside your body is the production of something called "Heme". This Heme is essential for the production of Hemoglobin, which is responsible for the red color of our blood and carries oxygen throughout the body. Not only that, but this Heme helps in many other important functions inside our cells. However, sometimes the process of producing this Heme can go wrong. That is when conditions belonging to a rare group of diseases called "Porphyria" occur. Don't worry, let's talk about this simply.

What exactly is Porphyria?

Simply put, porphyria is a common name for a group of rare diseases that affect the process of producing heme in our body. Think of it this way, making heme is like a complex eight-step process. Each of these steps requires eight specific enzymes to work properly. Enzymes are proteins that speed up chemical reactions in our body. Chemicals called "porphyrins" and "porphyrin precursors" are also involved in this process.

Now think about it, what happens if an enzyme in one of these eight steps doesn't work properly? That's where the problem begins. Like a chain reaction, when that enzyme doesn't work, the porphyrins and porphyrin precursors that came before it start to accumulate inside the body's cells. It's this accumulation of chemicals that causes the symptoms of porphyria.

You may be wondering, "Why isn't this enzyme working properly?" Most often, the cause is a genetic mutation. That is, there is a change in a gene that codes for an enzyme involved in the process of making heme. This disease, called porphyria, is often hereditary. That is, this genetic mutation can be passed on to other members of the family. If that happens, they may also have porphyria or be carriers of the disease.

But don't worry. If you find out you have this condition, doctors can help you manage your symptoms, and possibly even prevent them. This can help reduce the impact these conditions have on your life.

Are there types of porphyria?

Yes, there are about eight types of porphyria. Doctors call them all together "the porphyrias." Doctors will determine which type of porphyria you have based on your symptoms and where in your body those extra chemicals I mentioned earlier accumulate.

In general, these types of porphyria can be divided into two main groups based on their symptoms:

• Acute Porphyrias (sometimes called "Acute Hepatic Porphyrias")
• Cutaneous Porphyrias

Acute Porphyrias

This group of diseases can cause severe stomach pain and other symptoms. Some types of acute porphyrias can make your skin sensitive to sunlight and cause skin blisters.

Here are some types of acute porphyrias:

• Acute Intermittent Porphyria (AIP): This is the most common type of acute porphyria. It can cause sudden, severe abdominal pain, but there is no sensitivity to sunlight or skin blistering.
• Hereditary Coproporphyria (HCP): Along with sudden stomach cramps, your skin may become sensitive to sunlight and blister.
• Variegate Porphyria (VP): In this condition, you may experience sudden stomach cramps and/or skin blisters. These may be worse when exposed to sunlight.
• ALAD-deficiency porphyria: ALAD stands for the enzyme "delta-aminolevulinic acid (ALA) dehydratase". This is a very rare type of porphyria, which usually shows symptoms in childhood.

Cutaneous Porphyrias

This group of diseases causes skin symptoms when exposed to sunlight. These may include pain, skin discoloration, swelling, and/or blistering. Depending on the underlying cause, some people may develop a blistering form of the skin called Cutaneous Porphyrias, while others may not develop a blistering form.

Types of Blistering Cutaneous Porphyrias:

• Porphyria Cutanea Tarda (PCT): This is the most common type of porphyria.
• Congenital Erythropoietic Porphyria (CEP): "Erythropoietic" refers to your bone marrow. This is the main site where the extra porphyrins accumulate in this disease. This is also a very rare type of porphyria.

Types of Non-blistering Cutaneous Porphyrias:

• Erythropoietic Protoporphyria (EPP) and X-linked Porphyria (XLP): These are also called "the protoporphyrias" because the chemical that accumulates in these diseases is "protoporphyrin." "X-linked" means that there is a genetic mutation on the X chromosome.
• Hepatoerythropoietic porphyria: This is also an extremely rare type of porphyria.

What are the symptoms of Porphyria?

The symptoms you experience and how long they last will depend on the type of porphyria you have. Symptoms can be very mild or very severe. Some people with porphyria may not have any symptoms at all. However, in some cases, these symptoms can be life-threatening if not treated properly.

Symptoms of Acute Porphyria

Acute porphyrias are caused by an increase in the heme precursors aminolevulinic acid (ALA) and porphobilinogen (PBG). These substances affect the way your nervous system works. Think about it, everything from moving your muscles to digesting food is controlled by the nervous system. Porphyria causes the nervous system to malfunction, causing symptoms in the form of "attacks."

Acute porphyria may cause symptoms such as:

• A severe stomach ache
• Nausea and vomiting
• Constipation
• Pain in the chest, back, arms, and/or legs
• Anxiety
• Insomnia
• Mental changes such as confusion, agitation, and hallucinations
• Hard work
• Rapid heartbeat (Tachycardia)
• High blood pressure
• Numbness, tingling sensation (Paresthesia)
• Muscle weakness or paralysis (this can also affect the muscles that help you breathe)
• Seizures
• Dark or red urine (porphyrins and other chemicals can change the color of urine)

If you have hereditary coproporphyria ``(HCP)`` or variegate porphyria ``(VP)``, your skin may be sensitive to sunlight. Exposure to sunlight may cause blisters, skin discoloration, and/or scarring.

How long can acute porphyria last?

An attack like this can last from three to seven days. But, especially if left untreated, it can last much longer. It can take weeks to months for symptoms to completely go away. You may only have one or a few attacks in your lifetime. However, some people may have several attacks in a year.

Acute porphyria can cause long-term complications such as high blood pressure, kidney failure, and rarely, liver cancer.

Symptoms of Non-blistering Cutaneous Porphyrias (EPP/XLP)

Cutaneous porphyrias cause skin symptoms when you are exposed to sunlight. This includes direct sunlight outside, as well as sunlight coming in through windows. Some types of artificial light can also cause symptoms. This type of porphyria does not cause the sudden, severe stomach pain or other symptoms that are typical of an "attack."

When you start to have a reaction to sunlight, you may feel a tingling sensation at first. If you don't get out of the sun quickly, you may develop what doctors call a "phototoxic reaction." You may experience skin symptoms like these, especially on your face, hands, and feet:

• Itching
• Numbness
• Swelling
• Severe pain at the affected area
• Small purple, red, or brown spots on the skin (`(Petechiae)`)

These reactions are very painful and usually last from two to five days. You should try to stay indoors and cool the affected areas (for example, with cold air from an air conditioner).

Symptoms of Blistering Cutaneous Porphyrias

Porphyria Cutanea Tarda (PCT)

People with PCT may experience symptoms like:

• Skin blisters (often on the backs of the hands)
• Scars
• Skin discoloration
• Thickening of the skin
• Fragile skin that tears easily with even the slightest injury or pressure
• Excessive hair growth (often on the face, sides of the forehead, or in places like the chin)

Congenital Erythropoietic Porphyria (CEP)

This severe form of porphyria begins to show symptoms shortly after birth or very early in life. The first sign is red urine. Because the baby's diapers are stained red, doctors are often tempted to first check for a urinary tract infection.

Other signs and symptoms of CEP include:

• Severe skin blistering even with exposure to even a little sunlight or fluorescent light
• Blisters become infected, causing bone infections and bone damage
• Loss of some parts of the face (ear and nasal cartilage)
• Teeth turning gray-brown
• Anemia - This means a lack of red blood cells in the blood. Sometimes a blood transfusion is necessary.
• Spleen enlargement
• Low platelet count (`(Low platelet count)`)

What are the causes of porphyria?

Acute porphyria is caused by changes in certain genes. However, just because you have a genetic change does not mean you will develop symptoms of porphyria. Many people with the gene changes associated with porphyria do not have symptoms. This means that genetic testing alone cannot confirm the diagnosis. The only way to know for sure if your symptoms are caused by acute porphyria is to test your urine for ALA and PBG levels.

Experts believe that other factors, such as hormones, certain medications, and the foods you eat, can play a role in the onset of acute attacks. If you are born with a genetic mutation linked to acute porphyria, these other factors can make attacks more likely.

Things that can trigger these types of attacks are:

• Increased levels of female sex hormones (for example, during the luteal phase of your monthly menstrual cycle)
• Some medications (for example, sleeping pills, birth control pills)
• Excessive alcohol consumption
• Smoking
• Low carbohydrate intake (for example, when you are fasting or following a special diet)

Causes of Porphyria Cutanea Tarda (PCT)

PCT is a type of porphyria that usually occurs in adults, and it is a little different from other types of porphyria. Doctors call it "acquired causes." This means that you can develop the condition even if you don't have a genetic mutation.

Typically, two or more risk factors combine to disrupt normal heme production. Such factors include:

• Estrogen use (for example, birth control pills or hormone replacement therapy)
• Excessive drinking
• Increased iron levels in the body (`(Iron overload / hemochromatosis)`)
• Hepatitis C infection
• HIV infection
• Smoking

How do doctors diagnose this disease?

Doctors diagnose porphyria by examining you physically and doing lab tests. You may have one or more of these tests:

• Blood tests
• Urine tests
• Stool tests

Your doctor will explain what tests you need to have and what each test can find. Your doctor may also recommend genetic testing for you and others in your family. This can identify specific gene changes that can cause porphyria.

How is porphyria treated?

Treatment options depend on the type of porphyria you have and how it affects you. Your doctor will explain what is best for your specific condition. Here are some general things you can expect.

Treatment of Acute Porphyrias

If you have acute porphyria, you may need to be hospitalized for treatment when you have an "attack." In the hospital, doctors will do one or more of the following:

• Giving medication to lower ALA and PBG levels (hemin infusion)
• Administering medication to manage pain, nausea, and/or epileptic status
• Giving IV (intravenous) fluids
• Monitoring your electrolyte levels and replenishing them if necessary
• Paying attention to changes in your mental state

To help prevent future attacks, your doctor may prescribe a medication called givosiran. This is a monthly injection that stops the overproduction of ALA and PBG.

You will also need to avoid triggering factors such as:

• Some medications
• Fasting and some calorie restriction methods
• Alcohol use
• Tobacco use
• Sun exposure (if you have VP or HCP)

Treatment of Cutaneous Porphyrias

No matter what type of Cutaneous Porphyria you have, it's important to protect your skin to prevent symptoms. Sunscreen alone is usually not enough. The best thing to do is to avoid being in the sun as much as possible. If you absolutely have to be in the sun, wear sun-protective clothing. Your doctor will advise you on what is best for you. You may also need to avoid some types of artificial light.

Treatment for EPP/XLP

Your doctor may prescribe a medication called afamelanotide. This is a very small implant. Your doctor will place it under the skin in your abdomen. The medication released from the implant will help reduce the painful symptoms caused by sun exposure. Your doctor will also monitor your liver function regularly and make sure your vitamin D levels are not low.

People with EPP/XLP are more likely to develop gallstones. Some EPP/XLP patients may also develop liver abnormalities. In severe cases, liver failure may occur. This may require a liver transplant, sometimes followed by a bone marrow transplant.

Treatment for PCT

The doctor may prescribe things like:

• Phlebotomy : Removing small amounts of blood at regular intervals removes excess iron from the body. This can help if iron overload is interfering with heme production.
• Low-dose hydroxychloroquine: This medication helps remove excess porphyrins from your body. They are excreted in your urine.

Treatment of CEP

It is very important to protect yourself from sunlight and fluorescent lights to prevent blistering and complications. If blistering occurs, antibiotic creams may be needed. If the infection is severe, oral or IV antibiotics may be needed.

Your doctor will regularly monitor your hemoglobin levels to determine if a blood transfusion is needed. For those with the most severe cases, a bone marrow transplant may be necessary. This is the only way to cure the disease.

When should I see a doctor?

When you have porphyria, regular check-ups (``follow-ups'') with your doctor will be a part of your life. Your doctor will tell you when you need to come for your appointments. These appointments are important to monitor how the disease is affecting your body and to spot any signs of complications. You will need regular blood and urine tests, as well as tests to check the function of other organs.

What kind of future can someone with porphyria expect?

Your outlook depends on these things:

• The type of porphyria you have
• How badly it has affected you
• Any complications that arise

Your doctor can give you the most accurate idea of ​​what to expect going forward.

Porphyria can have a big impact on your daily life. Severe symptoms can interfere with your normal activities, making it difficult to work, care for your family, and enjoy hobbies. You may feel very tired, both physically and mentally.

Tell your doctor how you're feeling. He or she can tell you about resources and support groups that can help you. Connecting with porphyria communities can help you learn more about your condition and find ways to manage it.

Living with a rare disease like porphyria can be lonely, frustrating, and downright scary. You may wish your family and friends understood how you feel. You may have had to explain your porphyria to others and ask them why you can't do certain things.

No matter where you are, know that you are not alone. Although porphyria is rare compared to many other diseases, there is a large community waiting to help you. Join online porphyria support groups, or ask your doctor to refer you to one. Finding people who understand how you feel can make it much easier to deal with the ups and downs of life.

The most important thing we need to learn from this (Take-Home Message)

Porphyria is a complex and rare disease. However, if you are educated about it, follow your doctor's advice, and avoid things that make your symptoms worse, you can live successfully with the condition. It is important to pay attention to your body, your symptoms, and see your doctor on time. Remember, you are not alone, and never hesitate to ask for help.

` Porphyria, heme, porphyrin, enzymes, genetic diseases, skin diseases, abdominal pain