Why Some People Are Immune To Deadly Diseases Over Others?

Updated Mar 1, 2025 | 07:00 PM IST

Summaryhe National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy.
COPA syndrome

Credits: Canva

For over 15 years, Dr Anthony Shum, a pulmonologist at the University of California, San Francisco has been studying a rare genetic disorder called the COPA Syndrome. It stands for coatomer subunit alpha and is a rare, inherited disorder that affects the lungs, joint, and kidney. The National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy. Now, Shum’s team has discovered a protective genetic variant that may offer new hope for treatment.

A Breakthrough

Researchers found that some relatives of COPA Syndrome patients stayed healthy despite carrying the same COPA gene mutation that causes the disease. The key difference? These unaffected individuals had a protective version of another gene called HAQ-STING.

When scientists introduced HAQ-STING into diseased lung cells from COPA patients, the cells returned to a balanced state, suggesting that this gene could be used as a therapy.

“We really think HAQ-STING could be a gene therapy tool and a step toward a cure,” said Shum, whose findings were published in the Journal of Experimental Medicine.

Families Who Solved The Mystery

Shum’s journey into COPA Syndrome research began in 2011 when he treated a young woman, Letasha, who had severe lung bleeding. Her mother, Betty Towe, mentioned that Letasha’s sister, Kristina, had suffered from similar symptoms. Over the years, Betty had taken both daughters on a four-hour trip to UCSF for treatment. After tracing their family history, Shum discovered that their distant relatives in Texas and Oakland also had lung problems and arthritis. In 2015, Shum, along with scientists from Baylor College of Medicine and Texas Children’s Hospital identified the COPA gene mutation. They realized that it was the common factor behind the illness. However, only some of the 30 individuals with the mutation actually developed symptoms, leaving a major question unanswered.

The Domino Effect

It was established that it occurs when a mutated COPA gene causes another gene STING to go overdrive. The STING that helps fight infections in COPA patients, remain permanently active, which leads to chronic inflammation that damages the lungs, kidneys, and joints. In 2020, while studying STING’s role in the disease, researchers discovered a key variation: HAQ-STING. This version of STING, present in about one-third of the population, appeared to neutralize the harmful effects of the COPA mutation.

To confirm their theory, the scientists needed both affected and unaffected family members to participate in the testing. Letasha, Kristina and Betty immediately volunteered. The researchers then analyzed DNA samples from 26 COPA patients and their healthy relatives. They also conducted CT scans and blood tests to ensure that unaffected members did not have any hidden symptoms. When the findings were all clear, it was revealed that all the healthy individuals had HAQ-STING, while none of the COPA patients did. This was the first known case of a common gene variant completely protecting against a severe genetic disease.

Encouraged by this discovery, researchers tested HAQ-STING’s effects in a lab setting. They introduced it into diseased lung cells from COPA patients, and the cells returned to normal function.

Way Ahead

Shum believes HAQ-STING could lead to game-changing treatments, including:

  • Prenatal gene therapy for babies diagnosed with COPA Syndrome before birth
  • Aerosol delivery of HAQ-STING for adults, directly targeting the lungs

Before publishing their findings, Shum called Betty with the news—her own HAQ-STING gene had protected her from the disease. He also informed Letasha and Kristina, who were overwhelmed with relief and joy.

“We always believed Dr. Shum would get to the bottom of it,” said Letasha. “This discovery is going to change lives.”

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Japanese PM Sanae Takaichi Sleeps 3 Hours A Night: How Much Sleep Do You Really Need?

Updated Jul 24, 2026 | 11:30 AM IST

SummaryWhile missing a few hours of sleep once in 2-3 months is harmless, regularly sleeping less than six hours a night can increase the risk of neurological problems over time, said health experts.
Japanese PM Sanae Takaichi Sleeps 3 Hours A Night: How Much Sleep Do You Really Need?

Credit: Sanae Takaichi/Instagram

Japanese Prime Minister Sanae Takaichi has sparked debate after revealing that she gets very little sleep since taking office.

In a post on X, Takaichi wrote that she had managed to get "five full hours of sleep for the first time in ages"—an improvement from her usual "zero to three hours" a night since becoming prime minister.'

"On weekdays, by the time I get back to the residence, I'm maxed out on private time just handling bath cleaning, bathing, dinner, washing up afterward, laundry, and some light tidying," she wrote.

"So the late-night hours after that get consumed until dawn with reading materials brought back from the Prime Minister's Office or prepping for … question time."

Takaichi added that whatever free time remained was spent ironing handkerchiefs, catching up on laundry, and repairing clothes.

While the disclosure offered a rare glimpse into the pressures of Japan's highest office, it also sparked a nationwide debate about the health risks of chronic sleep deprivation.

"I think she should rest more," Democratic Party for the People leader Yuichiro Tamaki said at a news conference.

"Why doesn't her entourage provide more support to create an environment in which she can make important decisions with a fresh mind?"

However, some of Takaichi's colleagues defended her.

"Each person has their own various circumstances and behind-the-scenes stories, and on the premise of fulfilling responsibilities in public duties, I would be grateful if you could understand," Deputy Foreign Affairs Minister Ayano Kunimitsu wrote on X.

Also read: Could Poor Sleep Be One of the Earliest Signs of Alzheimer's Disease? Study Says Yes

How Much Sleep Do You Really Need?

Dr. Nitin Dange, Comprehensive Stroke and Endovascular Neurosurgeon at Lilavati Hospital and Research Centre, Mumbai, told HealthandMe that regularly missing sleep can increase the risk of neurological problems over time.

"Currently, due to hectic schedules, people are now sacrificing sleep to meet work deadlines, study longer, or spend more time on screens. Missing a few hours of sleep once in 2-3 months is harmless.

However, chronic sleep deprivation can not only cause irritation and weight gain but also neurological issues. During sleep, the brain processes memories, repairs nerve cells, regulates emotions, and clears waste products that accumulate throughout the day," Dr. Dange said.

A recent research, published in the journal Alzheimer's & Dementia, suggests that disruptions in rapid eye movement (REM) sleep, during which we dream, consolidate memory, and process emotions, could be among the earliest biological signs of Alzheimer's disease.

Dr. Priyam Bordoloi, an Internal Medicine Resident from Assam, also highlighted the dangers of sleeping less than six hours a night.

"When you hit deep sleep, your brain's glymphatic system activates. Think of it as a plumbing system that actively flushes out metabolic waste and neurotoxic proteins (like beta-amyloid) accumulated during the day. When you consistently sleep less than 6 hours, you cut this vital cleaning cycle short. The toxins build up. If you do not fix this, you are actively fast-tracking your risk for Alzheimer's, Parkinson's, stroke etc. It's a bad habit we all need to fix," he wrote on X.

Tips To Sleep Better

Experts recommend getting 7-9 hours of sleep every night for optimal brain health.

  • Maintain a consistent sleep and wake-up schedule.
  • Avoid screens, caffeine, and heavy meals before bedtime.
  • Exercise regularly, but avoid intense workouts late at night.
  • Keep your bedroom quiet, cool, and dark.
  • Consult a doctor if you snore loudly, stop breathing during sleep, or feel excessively sleepy during the day.

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Lifestyle Genetics And Hormones: Understanding The Interplay Of Risk Factors For Ovarian Cancer

Updated Jul 24, 2026 | 09:56 AM IST

SummaryOvarian cancer is often called the ‘silent killer’ because of the symptoms, which can be vague and easily mistaken for minor digestive issues. To date, we do not have a reliable tool to screen and detect ovarian cancer early.
Lifestyle Genetics And Hormones: Understanding The Interplay Of Risk Factors For Ovarian Cancer

Credit: Canva

The ovaries are a pair of pelvic organs in biological females associated with reproduction. Cancer of the ovaries is unfortunately increasing in incidence and usually presents late in the course of the disease. Ovarian cancer is often called the ‘silent killer’ because of the symptoms, which can be vague and easily mistaken for minor digestive issues. To date, we do not have a reliable tool to screen and detect ovarian cancer early.

Certain risk factors for ovarian cancer increase your chance of getting it in the future. An important point to keep in mind is that having a risk factor alone does not mean one will develop ovarian cancer in the future.

Conversely, some people who get ovarian cancer may not have any known risk factors. Some risk factors, like smoking, can be changed.

Others, like genetic mutations or family history, can’t be changed. Scientists have discovered several risk factors that increase a person’s chance of developing epithelial ovarian cancer.

These include:

Older age: Most ovarian cancers begin after menopause. If one experiences pelvic bleeding after menopause, it is important to see a doctor.

Genetics: Ovarian cancer does run in families. The most common inherited gene mutations are BRCA1 and BRCA2. We now have very reliable tests to detect these genetic mutations and tailor-made specific treatments which are effective.

Hormones: Hormones play a complex role in the development of ovarian cancer. In general, the total number of times a woman ovulates during her lifetime is related to her risk of ovarian cancer. More ovulations can mean a higher risk. Thus, early menses (before 12 years of age) or late menopause (after 52 years of age), and use of hormone replacement after menopause do increase your risk. Pregnancy and breastfeeding are considered protective.

Lifestyle: Certain factors such as lifestyle choices are within our control. While we cannot change our DNA or our reproductive history, certain lifestyle choices like smoking, drinking, and lack of exercise may influence our biological environment.

Weight Management: Research suggests a link between obesity and an increased risk of several cancers, including ovarian cancer. Adipose (fat) tissue produces estrogens, which can fuel certain cellular changes. Maintain a healthy weight to reduce your risk.

Sedentary Habits: Many studies suggest that regular exercise such as walking, yoga, and weight training can reduce your risk of ovarian cancer.

Smoking: While primarily linked to lung cancer, smoking is strongly associated with mucinous ovarian cancer, a specific subtype of the disease.

Dietary Patterns: While there is no singular “superfood” that can help prevent cancer, consuming a diet rich in vegetables, lots of lean proteins like fish, chicken, eggs, tofu, etc, and whole grains can help support a healthy immune system.

Every year, World Ovarian Cancer Day is observed on May 8. This is an initiative to raise awareness globally for educating the public about symptoms, risk factors, and the need for early detection of ovarian cancer. This year’s theme was No Woman Left Behind, which aims to ensure that all women have access to means of early detection, quality care, support, and to spread awareness so that no symptoms are ignored.

We should all do our bit but not spread fear or stigma. Since there is no universal screening tool for ovarian cancer, awareness of symptoms and associated risk factors is key. By recognizing the interplay between our genes, our hormonal history, and our daily habits, we can hope to move toward a future where ovarian cancer is detected earlier and treated more effectively.

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Can GLP-1 Drugs Like Ozempic, Mounjaro Cause Hair Loss? Study Says It's Rare But Real

Updated Jul 23, 2026 | 03:00 PM IST

SummaryAlopecia may be a possible side effect of GLP-1 receptor agonists, particularly semaglutide and tirzepatide. The effect is seen more in people with type-2 diabetes.
Can GLP-1 Drugs Like Ozempic, Mounjaro Cause Hair Loss? Study Says It's Rare But Real

Credit: iStock

Glucagon-like peptide-1 (GLP-1) receptor agonists, such as Ozempic and Mounjaro, are best known for treating type 2 diabetes and obesity. However, a new study published in The BMJ suggests that people with diabetes using these blockbuster drugs may have an increased risk of hair loss (alopecia).

While the absolute risk is low, researchers from the University of Pennsylvania and the University of Southern California identified alopecia as a possible side effect of GLP-1 receptor agonists, particularly semaglutide and tirzepatide.

“GLP-1 receptor agonist use was associated with a higher risk of clinically recorded alopecia, particularly non-scarring alopecia, in patients with type 2 diabetes, compared with SGLT-2 and DPP-4 inhibitors,” the researchers wrote.

Non-scarring alopecia is a type of hair loss in which the hair follicles remain intact, making hair regrowth possible.

The researchers said the findings could help inform shared decision-making when considering GLP-1 receptor agonist therapy and highlight the need for further research into dermatological outcomes.

What Did The Study Find?

Researchers analyzed health data from 12,004 patients using GLP-1 receptor agonists and compared them with 15,221 patients using SGLT-2 inhibitors between January 2019 and September 2024. They also compared another 11,964 GLP-1 receptor agonist users with 11,233 DPP-4 inhibitor users.

The study found that adults using GLP-1 receptor agonists had:

  • A 37% higher risk of alopecia than SGLT-2 inhibitor users (6.91 vs. 5.04 per 1,000 person-years).
  • A 68% higher risk of alopecia than DPP-4 inhibitor users (6.53 vs. 3.89 per 1,000 person-years).

Further analyses showed the association was specific to non-scarring alopecia, with a 53% higher risk compared with SGLT-2 inhibitors and a 72% higher risk compared with DPP-4 inhibitors.

Why GLP-1 Drugs Are Linked to Hair Loss?

The researchers noted that rapid weight loss is a well-established trigger of hair shedding and may also lead to iron or zinc deficiencies, disrupting the hair growth cycle.

They added that hormonal changes may also play a role, although further studies are needed to understand the underlying mechanisms.

What Are the Study's Limitations?

The researchers acknowledged that they could not assess the severity, extent, duration, or reversibility of alopecia after treatment was stopped because of limited clinical information. They also could not rule out the influence of other unmeasured factors.

However, they said the study was based on high-quality data from a large, representative cohort, and the findings remained consistent across additional analyses.

“Our findings extend previous anecdotal safety signals and provide more systematic evidence to inform clinical awareness of this potential adverse effect,” the researchers concluded.

What To Do If You're Losing Hair on Ozempic, Mounjaro?

If you're experiencing excessive hair shedding while taking semaglutide, you may consider:

  • Discussing with your physician whether your dosage should be adjusted or whether nutritional supplements may help.
  • Increasing your protein intake to at least 100 grams per day.
  • Taking hair-supporting nutrients such as biotin, vitamin D, iron, and zinc.
  • Using topical treatments such as minoxidil to support hair regrowth.
  • Avoiding severe calorie restriction and maintaining a nutritionally balanced diet.

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