A condition, known commonly as "black urine disease" or Alkaptonuria is a rare genetic disorder involving protein metabolism, and it has its root in the mutation of the homogentisate 1,2-dioxygenase gene, which in turn causes homogentisic acid accumulation in the body. The appearance of dark urine after exposure to air is due to this kind of accumulation; however, a variety of symptoms can be expected, such as joint stiffness, changes in pigmentation, and other long-term health complications. Although the prevalence has been estimated to be between 1 in 250,000 and 1 in 1 million people in the United States, its effects are indeed high on those affected.

Alkaptonuria is an autosomal recessive disease, meaning that the child must inherit a defective copy of the HGD gene from both parents. If both parents are carriers, their offspring have a 25% chance of inheriting two faulty genes and developing alkaptonuria. The condition is genetic but is often not diagnosed for years because it progresses slowly and its early symptoms appear to be harmless.

Symptoms of Alkaptonuria

The most characteristic and common initial symptom of alkaptonuria is dark urine. The reason for this is due to the fact that excess HGA is excreted in the urine and upon oxidation in the presence of air, it gives the urine a brown or black color. Though it is often considered cosmetic, the long-term accumulation of HGA within the connective tissues produces more complicated health problems.

Progressive joint pain and stiffness: The accumulation of HGA in cartilage leads to early-onset osteoarthritis, making movement increasingly difficult over time.

Skin and eye pigmentation changes: Affected individuals may develop bluish or grayish discoloration of the sclera (white part of the eye) and the skin, particularly in areas exposed to friction.

Cardiovascular and respiratory problems: With age, HGA accumulation can lead to valve calcifications in the heart and stiffening of connective tissues in the respiratory tract, which can cause problems in middle and old age.

Decreased mobility and spinal problems: The spine may become stiff and painful due to chronic cartilage degeneration.

These symptoms usually begin to manifest during adulthood, leading to severe complications in a person's 40s or 50s and significantly affecting the quality of their life.

How is Alkaptonuria Diagnosed?

Because of its rarity, alkaptonuria is often mistaken or overlooked early in life. However, there are several ways to confirm the condition:

Urine Testing: The gold standard in the diagnosis is the testing of urine samples for high levels of homogentisic acid via gas chromatography. In case of oxidation, which changes the color of urine to black, it is indicative of alkaptonuria.

Genetic Testing: Confirmatory genetic testing reveals mutations of the HGD gene to diagnose the condition conclusively.

Blood Tests: High levels of HGA in the blood can be used as further evidence.

Imaging Studies: X-rays and MRIs will expose cartilage and joint damage characteristic of alkaptonuria.

Management of Alkaptonuria: Is There A Cure?

At present, there is no cure for alkaptonuria; however, various treatment approaches can reduce its symptoms and slow the disease's progress:

Nitisinone Therapy: Nitisinone is a drug that inhibits the production of HGA. It has been shown to reduce HGA levels and slow tissue damage. However, it needs to be taken under close medical supervision because of potential side effects.

Low-Protein Diet: Since HGA is a byproduct of protein metabolism, reducing protein intake—especially foods rich in tyrosine and phenylalanine—may help decrease HGA production.

Pain Management: OTC pain relievers and anti-inflammatory medications can be used to relieve joint pain and stiffness.

Physical Therapy: Exercise regularly, as it may improve mobility and strengthen muscles, thus reducing strain on affected joints.

Surgical Interventions: Most people with alkaptonuria develop severe osteoarthritis necessitating joint replacement in their old age. Also, some may require heart valve replacement surgery if cardiovascular complications develop.

Life with Alkaptonuria

Although alkaptonuria is not fatal, it severely affects the quality of life. The progressive deterioration of the joints and associated symptoms can make everyday activities difficult, requiring lifestyle changes and medical interventions. The disease may cause premature aging of the joints, requiring walking aids and mobility assistance earlier than expected.

Ongoing research will continue to work on improving the treatment options by focusing on gene therapy and alternative enzyme replacement therapies. However, because of its rarity, the clinical trials and research remain sparse.

As genetic research advances, more hope for better management and possible curative approaches for alkaptonuria exists. Scientists are searching extensively for enzyme replacement therapies and innovative drugs that can target the root cause of the disorder. Being aware and being diagnosed early helps individuals better their condition and ultimately have better long-term health outcomes.

Alkaptonuria is a striking example of how one gene mutation can have widespread effects on the body. Though still a rare and often misunderstood condition, growing awareness and advances in treatment are paving the way for better care. If you or a loved one suspect symptoms of alkaptonuria, it is essential to seek early diagnosis and medical guidance to manage the disease effectively and preserve quality of life.

A new study has revealed an alarming trend in stroke cases in the past three decades. Strokes have often been associated as an age-related disease. But according to a study published in Neurology, the rate of stroke among adults aged 20 to 54 has nearly doubled between 1993-94 and 2020.

Researchers examined data from the Greater Cincinnati and Northern Kentucky Stroke Study and identified 2,076 first-time strokes among people in this age group.

The rate of stroke rose from 33.9 cases per 100,000 person-years in 1993-94 to 62.2 in 2020. The increase was largely driven by ischemic stroke, which happens when a blood vessel in the brain becomes blocked.

The study points towards an alarming pattern, especially among younger age groups. It raises the question of why are strokes are occurring earlier in life?

High Blood Pressure, Diabetes And Other Risks

The researchers found that several risk factors of stroke became more common among younger people. These included lifestyle disorders like high blood pressure, diabetes and atrial fibrillation, an irregular heart rhythm that can increase the risk of blood clots.

Apart from lifestyle diseases, researchers also saw an increase in substance use. Among younger adults who had suffered a stroke, substance use rose from 4.6% in 1993-94 to 40.2% in 2020. Much of this increase was linked to marijuana use.

However, the study does not prove that these factors caused the overall rise in stroke rates. Researchers did not have comparable information from people who had not suffered a stroke, making it impossible to determine whether the changing risk factors directly explain the surge in cases.

According to the study, the increase was concentrated mainly in ischemic strokes. The rate of ischemic stroke among 20- to 54-year-olds rose from 23.8 to 47.3 cases per 100,000 person-years during the study period.

Researchers did not observe a similar increase in intracerebral haemorrhage, which involves bleeding within the brain, or subarachnoid haemorrhage, which involves bleeding around the brain.

Also read: Can A Roller Coaster Cause A Brain Bleed? What Sudden Acceleration And Deceleration Does To The Brain

What Is An Ischemic Stroke?

An ischemic stroke occurs when a blood vessel supplying part of the brain becomes blocked, cutting off oxygen and nutrients. Brain cells can start dying within minutes, which is why stroke treatment is highly time-sensitive.

The warning signs of stroke can appear suddenly. They include:

• Facial drooping
• Weakness
• Numbness in an arm or leg
• Difficulty speaking

The commonly used FAST acronym stands for Face, Arm, Speech and Time. If these symptoms appear, emergency medical care should be sought immediately.

Also read: UK Student Nearly Dies After Accidental Paracetamol Overdose: Why It Can Cause Liver Failure

More Young People Are Surviving Stroke

This is another interesting finding. Although stroke became more common among younger adults, the study found that the 30-day death rate declined modestly, from 11.7% in 1993-94 to 9.4% in 2020 after adjusting for age, race and sex.

That means more younger people may be surviving strokes but potentially living with their long-term consequences.

The researchers say the findings highlight the importance of identifying and managing stroke risk factors earlier in adulthood. More research is still required to understand what is behind the changing pattern and how it can be prevented.

A 20-year-old UK student nearly died after accidentally taking two over-the-counter medicines that both contained paracetamol.

Riley Lubas, a first-year University of Bath student, developed a bad cold in March 2025. Days later, he developed severe stomach pain and was found to have serious liver damage.

What Happened?

Doctors initially suspected hepatitis, but Riley's condition rapidly worsened. He became delirious and hallucinated as his liver began to fail. His lungs and kidneys also stopped working, leaving him in multiple organ failure.

He was placed on life support and dialysis before being transferred to King's College Hospital in London, where doctors identified the cause after asking about his paracetamol use.

"It didn't necessarily help with a solution, but it was good to know the cause at last," his father, Chris, said.

Also read: ‘Zombie’ Drug Medetomidine, Spotted In Heroin Supply, Raises Concern As It Could Evade Overdose Antidote

Riley Had To Learn To Walk And Talk Again

Riley was assessed for a liver transplant after his parents were warned that some of the damage could be "irreversible". But his liver began to recover.

"We watched Riley's situation closely for a couple of days, and he continued to improve, until he was taken off dialysis and life support just a week later."

Riley spent six weeks at King's College Hospital and later moved to an ICU in Newport. After a tracheostomy and multiple organ failure, he had to relearn how to speak and walk.

"But just seeing him up and alive again was unbelievable," his father said.

Riley has since recovered and returned to work as a bartender.

"It was mad how quickly it all escalated," he said.

"Because I was already sick, when my stomach hurt I just assumed I'd caught a stomach bug, so I didn't notice the pain in my liver specifically."

"I'm just so grateful that I was able to come out the other end alright."

Why Combining Cold And Flu Medicines Can Be Risky

Read More: Are GLP-1 Drugs Safe for Children? Study Finds Nutritional Deficiency in Nearly 17% Within a Year

Riley's case highlights the risk of taking multiple medicines without realizing they contain the same active ingredient.

Dr Will Mackintosh, a GP and chairman of RCGP Cymru Wales, said accidental paracetamol overdose in young people was "a fairly rare occurrence", but warned that people can inadvertently take two products containing paracetamol, BBC reported.

The Medicines and Healthcare products Regulatory Agency (MHRA) has warned that "simple misunderstandings" about medicines can have serious consequences, highlighting the importance of checking the ingredients beforehand.

The Royal College of General Practitioners Cymru Wales also advised people to "read the label carefully" before taking medicines.

How Much Paracetamol Is Safe?

For most adults, the usual dose is 500 mg to 1,000 mg at a time, with at least four hours between doses.

The usual maximum is 4,000 mg in 24 hours, although some people may need a lower dose because of their weight, liver or kidney problems, alcohol use or other health conditions.

The important point is to count paracetamol from all medicines, including cold and flu products.

How Can An Overdose Damage The Liver?

The liver breaks down paracetamol. When too much is taken, a toxic substance can build up and damage liver cells. Severe overdose can lead to liver failure and death.

Early symptoms may include nausea, vomiting and stomach pain, but serious poisoning may not cause obvious symptoms immediately. Later signs can include jaundice, confusion and extreme sleepiness.

What To Do After Taking Too Much

If you think you have taken too much paracetamol — including by combining medicines that contain it — seek urgent medical advice immediately.

Do not wait for symptoms. Early treatment can reduce the risk of serious liver damage.

Always check the active ingredients on painkillers and cold and flu medicines before taking them together.

Doctors at a Mumbai hospital successfully performed a complex coronary angioplasty on an elderly diabetic patient with severely calcified coronary arteries using an advanced technique called Intravascular Lithotripsy (IVL), helping restore blood flow to the heart despite multiple procedural challenges.

The patient, who had been experiencing symptoms suggestive of coronary artery disease, was found to have extensive calcium deposits in the coronary arteries. Further evaluation also revealed poor blood flow in the leg arteries, making conventional vascular access for the procedure difficult.

What Is Coronary Artery Calcification?

Coronary artery calcification is commonly seen in elderly individuals and people with long-standing diabetes. Excessive calcium makes the arteries rigid and narrow, often making routine angioplasty technically challenging and increasing the risk of incomplete stent expansion, which can affect long-term outcomes

Severely calcified coronary arteries remain one of the biggest challenges in interventional cardiology. The calcium makes the arteries extremely rigid, making it difficult to properly expand the stent. In such situations, conventional angioplasty alone may not be sufficient.

Despite the patient’s complex anatomy and poor peripheral vascular access, the team successfully performed the procedure through the radial artery in the wrist, avoiding access through the diseased leg vessels.

Also read: Stopping Ozempic, Wegovy, Mounjaro Linked To 22% Higher Heart Attack, Stroke Risk: Study

Breaking Deep Calcium Deposits In Artery Wall

To prepare the artery for stenting, doctors used Intravascular Lithotripsy (IVL), an advanced technology that delivers controlled sonic pressure waves to fracture deep calcium deposits within the artery wall. This allows the blood vessel to expand more effectively, enabling safe and optimal placement of the coronary stent.

IVL works on a principle similar to the technology used for breaking kidney stones, but it is specifically designed for heavily calcified coronary arteries. By modifying the calcium before placing the stent, we can achieve better stent expansion, reduce procedural complications and improve long-term outcomes in appropriately selected patients.

The procedure was completed successfully, with excellent blood flow restored to the affected coronary artery. The patient recovered well and was discharged in a stable condition.

Doctors say the case highlights how newer technologies are expanding treatment options for patients who were once considered extremely difficult to treat due to severe coronary calcification.

Advanced techniques such as IVL are transforming the management of complex coronary artery disease, particularly in elderly diabetic patients, allowing us to safely treat lesions that would have been significantly more challenging with conventional techniques alone.

The case underscores the growing role of advanced interventional cardiology in treating complex heart disease while minimising procedural risk and improving patient outcomes.