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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.
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.
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.
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.
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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Infertility impacts millions across the globe, touching both men and women alike. According to the World Health Organization, around 17.5% of the global population, roughly one in six people, experience fertility challenges. This condition can significantly reduce or even prevent natural conception.
Yet, despite its prevalence, infertility remains clouded by myths and misconceptions, many of which unfairly place the blame solely on women. Seeking to debunk these long-held beliefs, Dr. Holly Miller, an American Board-certified obstetrician and gynecologist, took to Instagram to share three important truths every woman should know about fertility.
With the help of modern medicine and medical interventions like IVF, fertility treatment can help people boost their chances of reproducing.
It’s important to understand that infertility affects both partners — it’s not solely a woman’s issue. Blaming only the woman is both unfair and inaccurate. In fact, experts find that the causes of infertility are almost evenly split between men and women.
Roughly one-third of infertility cases are linked to the woman, another third to the man, and the remaining third result from issues affecting both partners — or from causes that doctors are unable to clearly identify.
To identify the cause of infertility, both partners should undergo testing simultaneously. For men, a semen analysis — a quick and straightforward test — is often the easiest and most informative first step.
Most couples automatically try to conceive for a full 12 months before they think about seeing a fertility doctor. However, the doctor emphasizes that the woman's age is the single most important factor that affects the chances of successful treatment.
If you are under 35 years old: You can safely try for a full 12 months of regular, unprotected sex before seeking a specialist.
If you are 35 or older: You should contact a specialist after only 6 months of trying without success.
If you are 40 or older: You need to see a specialist right away—as quickly as you possibly can.
The doctor explains that after age 35, the woman's egg supply starts to decline more quickly. Time is essential, so couples should strongly ask their doctors for an early referral.
When a couple is diagnosed with "unexplained infertility," which happens in about 10% to 20% of cases, it means the basic first tests did not find a clear reason. This can be upsetting, but it does not mean you can never have children. In the doctor's experience, the term "unexplained" often means there are hidden problems, such as:
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In today's corporate world, desk jobs have become the order of the day and so are the health problems associated with them. Endless typing, long hours of sitting, and poor posture are silently taking their toll on young professionals who spend most of their day glued to screens. Many don't realize that their daily work habits could trigger unexpected medical conditions.
Such a growing concern was once highlighted by Hyderabad-based neurologist Dr Sudhir Kumar, who recently shared a case on X. He wrote about one such case of Riya (name changed), a 25-year-old software engineer who developed a sharp, burning pain in her elbow-a pain which began as a minor ache while typing and gradually became so severe that even lifting a teacup felt unbearable.
Riya tried everything she could think of: Rest, pain relief balms, painkillers, even switching hands while using her computer, but the pain refused to fade. When she finally decided to visit the doctor, her symptoms immediately pointed to something unexpected: Tennis elbow. The diagnosis came as a surprise, considering she had never even held a tennis racket. On examination, Dr Sudhir Kumar found the tell-tale signs of the condition, medically known as lateral epicondylitis — tenderness along the outer elbow and pain when she tried to extend her wrist. He explained that the culprit wasn’t a sport, but repetitive strain from long hours at the computer — a problem increasingly common among desk workers.
The Mayo Clinic describes tennis elbow, medically termed lateral epicondylitis, as a painful condition resulting from the overuse of muscles and tendons in the forearm. It develops where these tissues are repeatedly strained by similar wrist and arm movements, leading to tiny tears and inflammation near the elbow.
The name is misleading, and you don't have to be an athlete to get tennis elbow. As a matter of fact, most people who develop it never have used a racket. It's common for the condition to strike people in jobs that require repetitive motions: plumbers, carpenters, painters, butchers, and yes, office workers who spend hours typing or using a mouse.
The pain generally arises on the outside of the elbow, precisely at that bony prominence to which the muscles of the forearm attach. For some, the discomfort may extend into the forearm or even the wrist, making most activities quite arduous.
Once the diagnosis was confirmed, Dr Sudhir Kumar focused on addressing the underlying cause — repetitive stress and poor workstation ergonomics. The holistic treatment for Riya included the following:
Employing a counterforce brace-a tennis elbow strap-to reduce strain in daily activities. By her six-week follow-up, Riya’s pain had completely resolved. Her grip strength was back, and she could type, lift, and exercise without discomfort. Three months later, she was symptom-free — and far more aware of how small ergonomic changes can make a big difference.
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Prostate cancer is one of the leading causes of cancer deaths, however, a recent survey showed that most people don’t know this vital fact about prostate cancer symptoms.
Prostate cancer is a serious illness in the US, affecting over 300,000 men each year and causing more than 35,000 deaths, according American Cancer Society. This makes it the second-most deadly cancer for men. If doctors detect the disease early, it is treatable. However, patients usually don't notice any signs of the disease in its beginning stages. Due to this lack of symptoms, checking for the disease is extremely important.
A recent survey of 1,004 U.S. adults, commissioned by the Ohio State University Comprehensive Cancer Center, aimed to gauge public knowledge of the disease. The findings highlight a critical need for better education.
The results showed that most people, 80% of those surveyed, are unaware that early prostate cancer usually has no physical symptoms. One health specialist noted that it's crucial for everyone to understand that this cancer causes no symptoms until it has become advanced. The survey also revealed other gaps in knowledge:
The fact that prostate cancer often begins without symptoms is the main reason doctors worry.
In its early phase, the cancer is small and contained within the prostate gland. It doesn't push on or block any other body parts, so it doesn't cause pain or discomfort. Because the cancer is deep inside the body, it's hard to tell if someone has it without special tests.
Because men feel fine, they may wrongly believe they aren't at risk. This feeling of being safe often makes men hesitant to get screened. Since there are no symptoms to look for, screening tests, usually a simple blood test or a physical exam, are the best way to find the cancer early.
Even though most men with early prostate cancer feel completely normal, there are certain signs that might appear if the disease is more advanced. These symptoms include:
According to American Cancer Society, health organizations advise men to talk with their doctors about getting checked for prostate cancer starting at certain ages, depending on their personal risk.
Men who have no special risk factors.
Men who are African American or who have a father or brother who was diagnosed before age 65.
Men who have more than one close relative (father or brother) diagnosed at an early age. There is no one-size-fits-all advice for screening. Men should always speak to their doctor about their own risk and discuss the pros and cons of testing. Since there are no early warning signs, talking to a doctor about screening is described as "critical" and a simple process that could potentially save a man's life.
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