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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.
Blockbuster GLP-1 drugs, with semaglutide as the key ingredient, have shown promise in treating conditions ranging from diabetes and obesity to certain cancers.
Now, US researchers are set to test whether semaglutide can also help treat alcohol use disorder (AUD), particularly among veterans. AUD affects an estimated 400 million people worldwide, or about 7% of people aged 15 years and older.
The US Department of Veterans Affairs (VA) has announced a new clinical trial to evaluate the effectiveness of semaglutide in treating AUD and is aimed directly at benefiting Veterans.
"By exploring emerging treatment options like the use of a GLP-1 for AUD, we aim to expand the tools available to help Veterans take control of their health and recovery," said VA Secretary Doug Collins.
Currently, more than 400,000 US veterans have been diagnosed with AUD, while an estimated 11% of US adults are affected by the condition.
Also read: GLP-1 Weight-Loss Drugs Show Promise for 17 Million With Binge Eating Disorder, Suggests Study
The study, called the Cessation or Reduction of Alcohol Consumption in Veterans (CRACV) trial, will enroll more than 600 veterans across 18 VA medical centers in the US.
Participants aged 18 to 80 with moderate or severe AUD will receive weekly injections of either semaglutide or a placebo for 24 weeks, followed by a safety follow-up period.
Researchers will assess changes in alcohol consumption, overall health, and quality of life to determine whether semaglutide could become a new treatment option for alcohol use disorder.
Evidence is also emerging that GLP-1 medications may influence alcohol consumption. A Phase 2 clinical trial published in the American Journal of Psychiatry in July suggests that oral semaglutide may help reduce heavy and harmful drinking, even among people who are not trying to quit alcohol completely.
The trial included 50 adults with moderate to severe alcohol use disorder who wanted to reduce or stop drinking. Participants were randomly assigned to receive either daily oral semaglutide or a placebo for eight weeks.
The semaglutide dose increased from 3 mg per day during the first four weeks to 7 mg per day during the remaining four weeks.
While semaglutide did not significantly reduce laboratory-assessed craving or the average number of drinks per day compared with placebo, it significantly reduced heavy drinking days.
Compared with participants receiving placebo, those taking semaglutide had fewer heavy drinking days during the final four weeks of treatment. They also consumed fewer drinks on drinking days and reported greater reductions in everyday alcohol cravings and alcohol-related negative consequences.
"It could represent a new treatment option for alcohol use disorder, particularly for those who have not benefited from existing medications, and may reduce alcohol-related health and social harms. Importantly, even reducing heavy drinking can lead to meaningful improvements for patients and families," said Joseph Schacht, PhD, professor of psychiatry at the University of Colorado Anschutz School of Medicine.
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As many as 23 cases of young women aged below 35 suffering from heart-related problems in only a month (reported by the Indian Medical Association) have left cardiologists concerned. What were earlier considered symptoms of stress, anxiety, and hormonal imbalances such as chest pain, breathing difficulty, palpitations, unexplained fatigue, and giddiness are now not being taken lightly when they occur for a prolonged time or recur. They are being increasingly identified as cardiac-related problems even in young adults.
Lack of physical activity, improper diet, obesity, diabetes, high blood pressure, smoking, and continuous stress have been labeled responsible for these problems. Some women's conditions like PCOD and autoimmune diseases can also put them at a higher cardiovascular risk. Regular check-ups, monitoring of blood pressure, blood sugar, cholesterol levels, and timely check-ups for the heart whenever these conditions occur can help in detecting the problems at the earliest, thus initiating treatment and recovery effectively.
In today's times, management of complicated heart diseases in India has dramatically improved and achieved outcomes at par with global standards. Today, the management of very severe heart valve disease offers much in terms of percutaneous catheter-based solutions, which, alongside conventional surgery (performed according to a person's age, general health, and clinical profile), give improved outcomes. Early detection and management of heart diseases prevent major complications and restore an individual's quality of life.
Increased knowledge about heart health, early identification of symptoms, and immediate medical attention are very important to achieve successful results. The observance of preventive measures such as engaging in regular exercise, a healthy diet, sleep, managing stress, and conducting regular medical checkups helps in the prevention of heart problems. Early diagnosis and adequate treatment form the key factors for achieving the best heart health.
By Dr. Nagendra Singh Chouhan, Interventional Cardiologist at Medanta Hospitals, Gurugram
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Feeling breathless after climbing several flights of stairs or a session of strenuous exercise is usually considered normal.
But breathlessness that appears suddenly, happens frequently, or occurs during routine activities should never be dismissed as tiredness or lack of fitness.
Breathlessness, clinically known as dyspnoea, can occur due to many reasons. Asthma, allergies, respiratory infections, chronic lung disease, and heart problems are some of the common possibilities. Anxiety, anaemia and obesity could also be driving factors.
In some cases, persistent or unexplained breathing difficulty may also be linked to more serious conditions, including lung cancer. The important thing is to understand when breathlessness needs medical attention.
HealthandMe spoke to lung disease experts - Dr. Sachin Kumar, Director of Pulmonology & Critical Care Medicine, Sakra World Hospital, Bengaluru, Dr. Sanjeev Kumar, Director & Unit Head of GI & HPB Surgical Oncology & Clinical Administrator, Surgical Oncology, Max Super Specialty Hospital, Dwarka, Dr. Ruchi Singh, HOD & Senior Consultant, Radiation Oncology, Asian Institute of Medical Sciences, and Dr. Ashwin Mallya, Uro-Oncologist and Robotic Surgeon, Sir Ganga Ram Hospital.
Dr. Sanjeev Kumar explains that breathlessness that gets worse during routine activities are major red flags. He also says that other symptoms like chronic cough, coughing up blood, tiredness, and others should not be neglected.
He says, "Pay attention if breathlessness is accompanied by chest pain or pressure, dizziness, fainting, unusual sweating, bluish lips or fingertips, or a feeling that you cannot get enough air. A persistent cough, wheezing, recurring chest infections, coughing up blood, unexplained weight loss or prolonged fatigue along with breathlessness also deserves medical assessment. A cough that does not go away or changes in a long-standing smoker’s cough should not be overlooked. Although these symptoms can have several causes, they can occasionally be associated with lung cancer and need appropriate evaluation."
He also said that changes in usual breathing capacity is also a red flag. He said that if you previously walked comfortably for 20–30 minutes but now have to stop frequently because you are breathless, this change should not simply be attributed to age.
Also read: Lung Nodule on CT Scan? Doctors Explain When You Should Worry
Dr. Ruchi Singh points to a worrying trend. She said that the initial symptoms of lung cancer are usually dismissed as routine, which leads to delayed evaluation and treatment.
She says, "One of the most concerning things we are tracking is how late many patients present. Because symptoms like persistent cough or breathlessness are so easily mistaken for pollution-related irritation or a lingering infection, people delay getting scanned."
She explains that earlier detection through low-dose CT screening in high-risk groups remains the best tool for improving survival, and awareness needs to catch up with how the patient's profile itself is changing.
Also read: Can Fitness Hide Lung Cancer? Why Even Active People Shouldn't Ignore Symptoms
Talking about how lung cancer could metastasize, Dr Ashwin Mallya explains that along with early evaluation, it is essential to adopt a treatment strategy
Dr Mallya said, "Although primarily a thoracic malignancy, lung cancer frequently extends beyond the chest. Adrenal metastases are among its most common distant manifestations, while renal metastases, though less frequent, are well recognised."
He added, "These patterns underscore the importance of a multidisciplinary approach, often bringing urologists into the care of patients with advanced disease."
Also read: 'I Wish Every Patient Knew This Before Their Lung Cancer Diagnosis'- Lessons From An Oncologist
Giving a real-life example of how lung cancer is no longer a smoker's disease, Dr Sachin Kumar said, "A 50-year-old lady went to the clinic seeking a second opinion after being treated for "asthma" for several weeks. She complained of occasional breathlessness and a persistent cough. Despite inhalers, her symptoms continued. A simple chest X-ray revealed something entirely different: a massive pleural effusion (fluid around the lung). Further evaluation confirmed the underlying cause: *lung cancer that had spread to the pleura (the lining surrounding the lungs).
He added, "This case is a reminder that not every cough or episode of breathlessness is asthma. When symptoms persist or do not respond as expected, they deserve a fresh look. Sadly, lung cancer is no longer a disease seen only in older male smokers. In our own practice, we now diagnose around 2–3 new cases of primary lung cancer every three months, and nearly 40% of these patients are either women or people who have never smoked."
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