What Is Alkaptonuria? The Rare Disease That Turns Your Pee Black – Here’s Why

Updated Feb 7, 2025 | 08:00 AM IST

SummaryAlkaptonuria is a rare genetic disorder that causes black urine due to homogentisic acid buildup, leading to joint pain, cartilage damage, and skin discoloration. It has no cure but can be managed.
What Is Alkaptonuria? The Rare Disease That Turns Your Pee Black – Here’s Why

Image Credit: Canva

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.

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Hong Kong Fire: Essential Do’s and Don’ts You Must Follow During A Fire Emergency

Updated Nov 27, 2025 | 03:44 PM IST

SummaryA deadly blaze in Hong Kong has brought renewed attention to basic fire safety practices that can save lives during an emergency. Officials and safety groups stress simple habits that households should follow.
hong kong fire

Credits: AP

At least 55 people have lost their lives and 279 remain missing after Hong Kong’s most severe fire in more than a century swept through several high-rise towers on Wednesday afternoon, officials said. Fire crews are still trying to put out the blaze in the Tai Po area and reach those who are trapped inside. By early Thursday, authorities said they had managed to control the fire in four buildings, though teams were still working on three others more than 16 hours after the flames first appeared.

What Happened in Hong Kong?

A residential complex in the Tai Po district caught fire at around 2:51pm local time on Wednesday. The flames started on the bamboo scaffolding fixed to the outside of one of the buildings. This scaffolding, made of bamboo poles used by workers during repairs, burns very easily. Once it caught fire, the flames moved quickly up the outside of the building, spread into the apartments, and then reached nearby towers.

The blocks were also covered in green construction netting from the ground to the roof because renovation work was taking place. This netting caught fire as well and helped the flames advance at a faster pace. Local reports noted that the fire grew at incredible speed. By 3:34pm, it had reached a level four alarm, and by 6:22pm, it had been raised to a level five alarm, the highest alert in Hong Kong. It is now the deadliest fire the city has seen in more than 100 years.

Hong Kong Fire: How Did The Fire Start?

The blaze spread in minutes because it began on the bamboo scaffolding around the building and moved to the green netting covering the towers. Both materials burn very easily. Once they ignited, the flames climbed the outside of the tower and reached many floors above. Burning fragments then dropped to the ground and set nearby buildings on fire within minutes. Wind and the open gaps created during the renovation work likely pushed the flames even faster. While officials are still examining the exact cause, they said that the flammable scaffolding, the construction materials, and the tall buildings standing close together all played a part in letting the fire grow out of control, according to Al Jazeera.

Hong Kong Fire: Essential Safety Tips To Keep In Mind During A Fire Emergency

As per The American Red Cross society, here are some essential safety tips you should follow during incase a fire emergency strucks.

Smoke Alarms:

  • Make sure your home is fitted with working smoke alarms.
  • Place an alarm on every level of your home including inside each bedroom and outside every sleeping area. Connect the alarms so that they all sound together.
  • Install alarms and alert tools to help family members who are deaf or hard of hearing.
  • Alert tools such as strobe lights flash when the alarm rings. Pillow or bed shakers can help wake someone who is sleeping. These devices are triggered by the sound of the smoke alarm and shake the bed to warn the person about the fire.
  • Test each alarm at least once a month. Press the test button to check that it works.
  • Visit the Consumer Product Safety Commission website for details on smoke alarms that may have been recalled.

Home Escape Plan

  • Create a home escape plan that includes two ways out of every room. Share this plan with all family members and guests.
  • The plan should show two clear exits from each room and a meeting point outside the home.
  • Make sure everyone in the house knows the plan.
  • Practice your fire drill regularly.
  • Ensure that children, older adults, and people with disabilities have the help they need during an escape.
  • Keep stairways well lit to prevent falls.
  • Clear clutter so no one trips while trying to leave quickly.
  • Add handrails along both sides of staircases.
  • If you live in an apartment, know where all exit staircases are located on your floor in case the nearest one is blocked by smoke or flames. Always use the stairs to leave the building. Do not use the elevator unless the fire department says you can.

Fire Response

  • If there is a fire, get out quickly and stay outside. Then call 9-1-1.
  • If you cannot leave the building, call 9-1-1 and tell the fire department you are unable to get out. Wave a light coloured cloth or a flashlight near the window to signal for help, but keep the window closed.
  • If you see smoke, use your second escape route. If you must move through smoke, stay low and crawl under it.

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After Criticism From Doctors, Sonali Bendre Explains Her View on Naturopathy For Cancer Treatment

Updated Nov 27, 2025 | 01:00 AM IST

SummaryActor Sonali Bendre drew backlash after linking her cancer recovery to naturopathy and autophagy on X. Doctors reminded her that chemotherapy, surgery and radiation led to her remission and stressed that autophagy is not a treatment. Bendre later clarified she was only sharing her personal experience, not offering medical advice.
After Criticism From Doctors, Sonali Bendre Explains Her View on Naturopathy For Cancer Treatment

Credits: Wikimedia Commons

Sonali Bendre, actor, who is known for talking about her cancer journey, inspiring other survivors to talk about it too, has found herself at the center of a heated debate after she spoke how naturopathy and autophagy helped her in her cancer recovery.

Bendre, who was diagnosed with stage 4 metastatic endometrial cancer in 2018, wrote on X that she believes autophagy played a role in her healing journey. Her post quickly drew sharp criticism from several doctors.

Doctors Point Out That Cancer Remission Came Through Medical Treatment

Members of the medical community reminded her that her remission was the result of evidence-based cancer treatments, including chemotherapy, radiation and surgery. Many emphasized that autophagy is not a recognized medical therapy and should not be presented as one.

One post from hepatologist Dr Cyriac Abby Philips on X said, “Your cancer went into remission after chemotherapy, radiation, and surgery at an advanced cancer treatment hospital. Not because of Naturopathy. Not because of autophagy. Because you have the option and privilege to opt for the best treatments from scientific practice to help you.”

Bendre Clarifies Her Stand

Following the criticism, Bendre clarified that she was sharing her personal experience as a survivor, not medical advice. She wrote that her journey included elements she explored with the help of her naturopath, and these practices were only part of her overall healing process. In her words, “I have never claimed to be a doctor, but I am certainly not a quack either. I am a cancer survivor, someone who has lived through the fear, pain, uncertainty, and rebuilding that the disease brings.”

What Autophagy Actually Is

Autophagy is a natural process in which the body breaks down and recycles old or damaged cell components. Cells contain various structures that help them function, and over time some of these structures wear out. Autophagy acts like a clean-up and recycling system. It allows cells to dismantle faulty parts and reuse the useful components to maintain healthy cell function. Anything that cannot be used is removed by the cell.

This process is an important quality control mechanism. If too much cellular waste builds up, it can interfere with normal cell activity. Autophagy helps keep cells efficient and healthy. The scientific understanding of autophagy grew significantly after Japanese biologist Yoshinori Ohsumi won the Nobel Prize in Medicine in 2016 for his work uncovering how it works. While autophagy is essential for survival, it is not considered a medical treatment for diseases.

Can Autophagy Treat Cancer?

Experts explain that autophagy plays a complicated role in cancer. In the early stages, it may help prevent tumor formation by clearing damaged components. However, in established cancers, the same process can allow tumor cells to survive stress and become more resistant to treatments like chemotherapy.

Disclaimer: Please consult a qualified doctor or oncologist before choosing any treatment for cancer. Health and Me does not endorse alternative therapies as substitutes for evidence-based medical care. This article is based on publicly available information. All medical conditions should be evaluated and managed under the guidance of a licensed healthcare professional.

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E-Cigarettes Carry Fecal Bacteria Like E. Coli And More, More Details Inside

Updated Nov 26, 2025 | 08:01 PM IST

SummaryA new study shows vape mouthpieces carry extremely high bacterial contamination, including fecal bacteria like E. coli. Researchers found up to 2,300 times more microbes on vapes than on public toilet seats, largely due to poor cleaning, frequent handling and even bathroom use. Bacterial growth begins within a day and intensifies over two weeks.
E-Cigarettes Carry Fecal Bacteria Like E. Coli And More, More Details Inside

Credits: iStock and Canva

What if you are told that the vape you are using contains bacteria found in poop. You read that right. According to a study conducted by HAYPP along with Microbiologist Reynold Mpofu at BioLabTests, bacteria like staphylococcus and bacillus were found on vape, as well as fecal bacterium, E. coli is found on vape, which is often found in public bathroom.

What Did The Study Find?

More than 100 million people worldwide use e-cigarettes or vapes, and at least 1 in 6 people vape in toilet. Furthermore, vapes are rarely cleaned, and thus become germ hotspots.

The study found that vape mouthpieces are highly contaminated with bacteria. More than 1.5 million colony-forming unites or CFUs were identified on the vape mouthpiece, the maximum amount measurable by the lab, carrying as many as 2,300 times more bacteria than a public toilet, which has 50 CFUs per square inch.

“Laboratory analysis revealed that the mouthpiece is the dirtiest component of the vape. This isn’t surprising given that the human mouth, largely considered to be one of the ‘dirtiest’ parts of the body, harbors approximately 700 species of bacteria, that amounts to billions of individual bacteria,” said Mpofu.

The study was able to identify a range of bacteria, including skin microbes to gut bacteria like E.coli.

Also Read: UK Investigates Impact Of Vaping On Its Young Users

The Species Identified

The study identified these following bacteria on the vape:

  • Bacillus: commonly found in dust and the air
  • E.coli: indicates possible fecal contamination
  • Yeast and mold: can cause respiratory irritation
  • Staphylococcus: usually harmless, but could cause infection
  • Enterococcus: intestinal bacteria that can persist on surfaces

The study was also able to identify bacteria on the vape body. The lab also observed a rapid microbial growth between just 2 to 3 days of use. These colonies could be seen multiplying thousand of times over.

While many of these are found on human skin or surrounding, some are intestinal bacteria, like aforementioned, E.coli, and Enterococcus, which points towards unwashed hands, explaining the transfer on the surface.

“Much like phones, vapes are frequently handled and placed on a variety of surfaces, allowing germs, oils, and dirt from hands, pockets and various environments to latch on the device. The findings confirmed the presence of bacteria, including E. coli and Enterococcus, on the vape body, likely arising from inadequate hand hygiene or the transfer of microorganisms from bathroom environments or other contaminated surfaces,” said Mpofu.

Read: Why Is My Idea Of Break Is To Have A Smoke?

The Timeline Of Bacteria Development

The first signs of microbes start to appear within the first day of buying a brand new vape, especially around the mouthpiece.

By day three, the vape accumulates more than 2,300 times the microbial load typically found on a toilet seat.

By the seventh day, bacteria like E.coli. and Enterococcus and other fecal indicators are detected on the mouthpiece and vape’s body. Mould and bacteria are also found on levels.

By day 14, despite no new use or cleaning, the vape remains heavily contamination. The contamination does not fade overtime.

Read: These US States Vape The Most

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