French Oncologist: Alternative Smoking Reduces Mortalities but Still Harmful

An international expert in medical oncology said the concerned organizations should adopt a more realistic approach to banish smokers from cigarettes. AP
An international expert in medical oncology said the concerned organizations should adopt a more realistic approach to banish smokers from cigarettes. AP
TT
20

French Oncologist: Alternative Smoking Reduces Mortalities but Still Harmful

An international expert in medical oncology said the concerned organizations should adopt a more realistic approach to banish smokers from cigarettes. AP
An international expert in medical oncology said the concerned organizations should adopt a more realistic approach to banish smokers from cigarettes. AP

The World Health Organizations (WHO) estimates that there are around one billion smokers worldwide, a number that is not expected to decline in the foreseeable future and will likely remain steady until 2025.

An international expert in medical oncology said the concerned organizations should adopt a more realistic approach to banish smokers from cigarettes using an effective scientific methodology.

Dr. David Khayat, a renowned professor of oncology and medical oncologist in France, told Asharq Al-Awsat that “smoke-free alternatives could deliver a 10-fold reduction in smoking-attributable deaths; however, they are not harm free,” noting that “non-contagious diseases are the leading cause of death in the Middle East, accounting for 72 percent of mortalities.”

He also said “some common practices such as online shopping, regular dining in restaurants and humid weather encourage a lazy lifestyle.”

“The fundamental approach we adopted over the three past decades essentially relied on chemotherapy and hormone interventions. But the scientific research and innovation led us to advanced, more precise alternatives like the targeted therapy and immunotherapy,” he said. Khayat hailed “the discovery of another cancer-fighting treatment that targets the mutating proteins by killing the cells that contain them. These proteins are believed to be the reason behind the ability of endless division that some cancerous cells have.”

The French oncologist said “it’s important to know that cancer survives through mutations and single-cell DNA repair turnovers, which could be fought with targeted therapies,” adding that “other newly-discovered treatment methods, including stereotactic radiotherapy (or radiosurgery) help destroy tumors with high precision.”

The oncology professor said “in 2016, two researchers from Japan and the US discovered why cells sleep. Cancer is so malignant that it secretes somnifera - a sleeping pill - into the white blood cells, which causes them to go dormant. Then, scientists developed an innovative new approach: immunotherapy, a treatment method that contains antibiotic drugs to prevent lymphocytes from becoming inactive. This solution has changed the diagnosis of many cancers, including those found in the lungs, stomach and skin.”

“Nicotine, although addictive, is not the primary cause of smoking-related diseases such as cancer; smoking a cigarette means inhaling the smoke and the resulting burning ash, and this combustion process is the main reason behind many risks and toxins,” said Khayat.

Products that prevent combustion, such as electronic cigarettes, heated tobacco products and oral nicotine pouches, are “a less harmful alternative to conventional smoking.”

“While nicotine, the addictive substance, is still present in different levels in these alternatives, and thus does not make them completely risk-free, it is sufficient to shift smokers' interest away from inhaling cigarette smoke,” he concluded.



Nearby Sculptor Galaxy Revealed in Ultra-Detailed Galactic Image

This undated handout image released by European Southern Observatory on June 17, 2025 shows a detailed, thousand-color image of the Sculptor Galaxy captured with the MUSE instrument at ESO’s Very Large Telescope (VLT). (Handout / European Southern Observatory / AFP)
This undated handout image released by European Southern Observatory on June 17, 2025 shows a detailed, thousand-color image of the Sculptor Galaxy captured with the MUSE instrument at ESO’s Very Large Telescope (VLT). (Handout / European Southern Observatory / AFP)
TT
20

Nearby Sculptor Galaxy Revealed in Ultra-Detailed Galactic Image

This undated handout image released by European Southern Observatory on June 17, 2025 shows a detailed, thousand-color image of the Sculptor Galaxy captured with the MUSE instrument at ESO’s Very Large Telescope (VLT). (Handout / European Southern Observatory / AFP)
This undated handout image released by European Southern Observatory on June 17, 2025 shows a detailed, thousand-color image of the Sculptor Galaxy captured with the MUSE instrument at ESO’s Very Large Telescope (VLT). (Handout / European Southern Observatory / AFP)

The Sculptor galaxy is similar in many respects to our Milky Way. It is about the same size and mass, with a similar spiral structure. But while it is impossible to get a full view of the Milky Way from the vantage point of Earth because we are inside the galaxy, Sculptor is perfectly positioned for a good look.

Astronomers have done just that, releasing an ultra-detailed image of the Sculptor galaxy on Wednesday obtained with 50 hours of observations using one of the world's biggest telescopes, the European Southern Observatory's Chile-based Very Large Telescope.

The image shows Sculptor, also called NGC 253, in around 4,000 different colors, each corresponding to a specific wavelength in the optical spectrum.

Because various galactic components emit light differently across the spectrum, the observations are providing information at unprecedented detail on the inner workings of an entire galaxy, from star formation to the motion of interstellar gas on large scales. Conventional images in astronomy offer only a handful of colors, providing less information.

The researchers used the telescope's Multi Unit Spectroscopic Explorer, or MUSE, instrument.

"NGC 253 is close enough that we can observe it in remarkable detail with MUSE, yet far enough that we can still see the entire galaxy in a single field of view," said astronomer Enrico Congiu, a fellow at the European Southern Observatory in Santiago, and lead author of research being published in the journal Astronomy & Astrophysics.

"In the Milky Way, we can achieve extremely high resolution, but we lack a global view since we're inside it. For more distant galaxies, we can get a global view, but not the fine detail. That's why NGC 253 is such a perfect target: it acts as a bridge between the ultra-detailed studies of the Milky Way and the large-scale studies of more distant galaxies. It gives us a rare opportunity to connect the small-scale physics with the big-picture view," Congiu said.

Sculptor is about 11 million light-years from Earth, making it one of the closest big galaxies to the Milky Way. A light-year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).

Like the Milky Way, it is a barred spiral galaxy, meaning it has an elongated structure extending from its nucleus, with spiral arms extending from the ends of the bar. Its diameter of about 88,000 light-years is similar to the Milky Way's, as is its total mass. One major difference is Sculptor's rate of new star formation, estimated to be two to three times greater than that of the Milky Way.

Nearly 30% of this star formation is happening near the galaxy's nucleus in what is called a starburst region, as revealed in colorful emissions shown in the new image.

The observations have given information on a wide range of properties such as the motion, age and chemical composition of stars and the movement of interstellar gas, an important component of any galaxy.

"Since the light from stars is typically bluer if the stars are young or redder if the stars are old, having thousands of colors lets us learn a lot about what stars and populations of stars exist in the galaxy," said astronomer Kathryn Kreckel of Heidelberg University in Germany, a study co-author.

"Similarly for the gas, it glows in specific bright emission lines at very specific colors, and tells us about the different elements that exist in the gas, and what is causing it to glow," Kreckel said.

The initial research being published from the observations involves planetary nebulae, which are luminous clouds of gas and dust expelled by certain dying stars. Despite their name, they have nothing to do with planets. These nebulae can help astronomers measure the precise distances of faraway galaxies.

The researchers marveled at the scientific and aesthetic value of the new view of Sculptor.

"I personally find these images amazing," Congiu said. "What amazes me the most is that every time I look at them, I notice something new - another nebula, a splash of unexpected color or some subtle structure that hints at the incredible physics behind it all."