Epidermolysis Bullosa, also known as "butterfly disease," is a rare genetic condition. This congenital disease lets the skin be as fragile as those of butterfly wings. Affected patients can develop painful blisters and sores easily, proving life very difficult to live for all their daily activities. Though its prevalence is extremely rare, estimated to occur in 1 of each 50,000, the impact of this disease on children born with severe forms of the disease is immense.
Although the problems associated with butterfly disease are tremendous, there is a promise of improvement with advancements in gene therapy and other treatments. Research and innovations such as topical gene therapy are bringing new hope for the management of symptoms and possibly curative solutions in the future.
This article delves into the complexities of butterfly disease, including its causes, symptoms, and current developments in treatments, along with essential care tips for managing the condition.
Butterfly disease is a collection of very rare genetic conditions that cause severe skin fragility. Even the slightest pressure or friction from clothing, touch, or minor injuries can cause the skin to tear or blister. The blisters can occur anywhere on the body, including internally, such as in the mouth, gastrointestinal tract, and eyes.
Children with EB are sometimes referred to as "butterfly children" because their skin is fragile, just like the wings of a butterfly. In less severe cases, blisters may primarily occur on the hands, knees, or elbows. In the most severe cases, blistering can be all over the body, leading to scarring, deformities, and even life-threatening complications.
EB, butterfly disease, originates from mutations that damage the structure of the skin. These mutations result in broken bonds between layers of the skin and cause separation at stress points. There are 30 different subtypes, but they all fit into one of four larger categories based on where the lesions affect the skin.
The most common subtype, epidermolysis bullosa simplex (EBS), accounts for about 70% of cases. It is typically inherited in an autosomal dominant pattern, meaning a single defective gene copy from one parent can cause the condition. Other, less common forms may require two defective gene copies—one from each parent—making them autosomal recessive.
The symptoms of butterfly disease vary according to subtype and severity. Generally, all kinds of EB share the hallmark feature of fragile skin that blisters and tears easily.
There are severe complications with the more severe forms of EB where blisters form in areas of the eyes, airway, and gastrointestinal tract. Such may lead to conditions such as:
Infections: Open sores are easily susceptible to bacterial infections that may eventually result in deadly sepsis.
Malnutrition and dehydration: Inability to eat due to blisters in the mouth and esophagus.
Risk of cancer: Squamous cell carcinoma is a skin cancer with an increased risk of development.
Life expectancy varies according to the severity. The milder forms of the disease tend to improve with age, while the severe types usually result in early death. Most patients die before reaching the age of 30 years.
Also Read: Smurf Syndrome: Rare Condition That Turns Your Skin Blue-Gray Permanently
Currently, there is no cure for butterfly disease; however, the advancements recently done can offer a much better management system along with improved quality of life.
Gene Therapy
In 2023, the FDA approved a revolutionary gene therapy gel called Vyjuvek. This gel targets dystrophic epidermolysis bullosa, a severe subtype caused by mutations in the gene responsible for producing a crucial type of collagen in the skin. Vyjuvek helps heal wounds and prevent further damage by delivering functional copies of the gene directly to affected cells.
Other Treatments Involve
For severe patients, complications may necessitate surgery, including correction of esophageal strictures or deformity due to scar tissue.
Caring for butterfly disease needs a lot of attention to prevent complications and ease pain.
Trial of Beremagene Geperpavec (B-VEC) for Dystrophic Epidermolysis Bullosa. New England Journal of Medicine. 2022
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The internet is obsessing with the idea that Japan has a fat law, it fines people for being "fat". Talk about sensational headlines, mistranslations, and social media exaggerations. But what does Japan's so-called 'fat law' actually say? Does it really change anything?
Health and Me did a closer fact check on Japan's Fat Law, and here is what we found.
In 2008, the Japanese Ministry of Health, Labour and Welfare introduced the Metabolic Syndrome Countermeasures Promotion Law, which was popularly nicknamed the 'Metabo Law'. the word 'metabo' comes from metabolic syndrome, a cluster of high-risk conditions that include elevated blood pressure, high blood sugar, abnormal cholesterol, and excess fat around the waist. If left untreated, this could increase the risk of heart attacks, stroke and diabetes.
The law's main focus is on identifying these risks as early as possible. As part of Japan's long-standing annual health check tradition, about 50 to 56 million adults aged 40 to 74 undergo this mandatory waist measurements every year. The waistline thresholds are:
While the numbers are not arbitrary, they match the International Diabetes Federation's guidelines used to screen metabolic risks.
The Times-Union fact check confirms: "Japanese citizens cannot be fined or imprisoned for being overweight". RosePlus Japan also reports that the term "fat tax is a mistranslation and that "it is not illegal to be fat in Japan".
The law basically shifts the responsibility away from individuals to governments and employers.
Annual measurement: Employers and local authorities measure the waistlines of eligible adults.
If someone exceeds the limit:
No individual penalties: There is no fine for not losing weight.
Employer penalties:
This structure makes the Metabo Law more of a workplace wellness mandate than a personal weight regulation.
Much of the misunderstanding comes from how Japanese concepts were translated in English. With the word "law" being reported internationally, it implied a strict legal prohibition.
"Metabo" was incorrectly equated was being "fat", losing its medical meaning.
However, there have been things that changed since 2008. This includes companies offering nutrition workshops, physical activity support, health check programs for employees and their families. The annual health checks are now more structured. People flagged for metabolic syndrome were connected with counselling and monitoring, which can reduce long-term medical costs. The conversation has now also shifted towards body autonomy, public health and role of employers in personal wellness.
Credits: Canva
In a what doctors call an "exceptionally rare event', a Michigan man has died of rabies after receiving a kidney from a donor who was unknowingly infected with the virus. A recent report from the Centers for Disease Control and Prevention (CDC) gives information on how this rare medical event took place, with a surprising chain of exposures that vegan with a skunk scratch.
The Michigan patient underwent a kidney transplant at an Ohio hospital in December 2024. For several weeks, he seemed to be recovering normally. About five weeks after the procedure, he suddenly developed worrying symptoms such as tremors, weakness in his lower limbs, confusion and urinary incontinence. His condition deteriorated quickly and he was admitted to the hospital, soon requiring ventilation. Despite treatment, he passed away. Postmortem tests confirmed that he had rabies, a diagnosis that shocked doctors since his family said he had not been around any animals.
The unexpected diagnosis pushed doctors to take another look at the kidney donor, a man from Idaho. In the Donor Risk Assessment Interview, he had mentioned that a skunk had scratched him. At the time, this detail did not raise major concern. When investigators spoke to the donor’s family again, they learned more about the incident. A couple of months before his death, the donor had been holding a kitten in a shed on his rural property when a skunk approached and behaved aggressively. He stepped in to protect the kitten and managed to knock the skunk unconscious. Before that happened, the animal scratched his shin deeply enough to draw blood. He believed he had not been bitten, and the incident was never viewed as a medical emergency.
Around five weeks after the skunk encounter, the donor began showing symptoms that closely resemble rabies. He became confused and had trouble swallowing and walking. His family said he experienced hallucinations and complained of a stiff neck. Two days later, he was found unresponsive at home after what was believed to be a cardiac arrest. He was resuscitated and hospitalized but never regained consciousness. He was declared brain dead after several days, and his organs, including his left kidney, were donated.
Once rabies was detected in the kidney recipient, authorities examined stored laboratory samples from the donor. These tests were initially negative. However, kidney biopsy samples revealed a strain that matched silver-haired bat rabies. This finding suggested that the donor had in fact died of rabies and unknowingly passed the virus to the transplant recipient.
Investigators believe a likely three step transmission occurred. A bat infected a skunk, the skunk infected the donor, and the donor’s kidney infected the recipient. The CDC noted that only three other cases of rabies transmission through organ transplantation have been reported in the United States since 1978.
Three other people had received cornea grafts from the same donor. Once the risk was identified, the grafts were removed and all three individuals received Post Exposure Prophylaxis. They remained healthy and showed no symptoms.
Rabies is not routinely tested for in organ donors because human cases are extremely rare and difficult to diagnose. In this situation, the donor’s earlier symptoms were attributed to existing health conditions. Speaking to the New York Times, Dr Lara Danziger-Isakov said the case was exceptionally rare and reminded the public that the overall risk to transplant recipients remains very small.
Credits: Canva
Delhi continues to wake up to thick haze on Wednesday morning, with 28 stations in 'poor' category, while nine stations remained under 'very poor'. Though there is a slight improvement as the average AQI stood at 269, in poor category. The Chief Minister of Delhi has enforced stricter measures like imposing fines up to Rs. 5,000 for open burning, and use of coal and firewood.
Delhi pollution has now affected people way beyond their respiratory health, it has now attacked almost all organs of their body, including fetus, reproductive health, liver, kidneys, and even chronic diseases like diabetes, obesity, blood pressure, and even mental health illness.
But could Delhi do more? Right now all the measures, including emergency measures like GRAP have not worked more than a dent. However, China seems to have reverse its pollution problem.
In 2013, Beijing was battling with pollution problem. As per the data by the World Health Organization (WHO), in 2013, the annual means of PM2.5 levels reached 64.9 micrograms per cubic meter, whereas, in India, it was at 58.2. However, by 2019, China was able to bring it down to 38.15 micrograms per cubic meter while India remained at 50.17.
Since 2013, almost 80% of China has experienced air quality improvement. Beijing declared a war on pollution by shutting 3,000 coal boilers, which slashed coal use by 30%. It also forced factory to either close or comply with the guidelines. Clean energy also replaced soot and electric buses replaced diesel ones. The subway was expanded to 1,000 kilometers and by 2020, 40% of new cars were electric.
In the late 2000s, China began taking air pollution more seriously than ever. As per the UCLA Law professor Alex L Wang, China's 11th FYP (2006-10) made pollution a priority and used the "cadre evaluation system". This pushed officials to meet environmental targets. The system evaluates governors, mayors, and local leaders based on how well they perform compared to others in tackling pollution problem, which influences their promotions.
To cut pollution, China invested heavily in cleaner technology and shut down old, highly polluting factories such as power plants, smelters, and chemical units. The government also encouraged the shift to electric vehicles. Even though much of China’s electricity comes from coal, EVs still produce fewer emissions overall and create no tailpipe pollution in cities.
By 2017, Shenzhen became the first city in the world to fully electrify its 16,000 buses. Shanghai too followed its lead.
Studies by Tsinghua University and the Beijing Environmental Bureau showed that between 2013 and 2017, major improvements in air quality came from reducing coal boiler use, cleaner home heating, shutting down polluting industries, and controlling vehicle emissions.
The result was nothing less than remarkable. From 2013 to 2017, Beijing’s PM2.5 levels dropped by 35%, and life expectancy rose by 4.6 years.
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