HEALTH NEWS
- Flavonoid found in citrus slows lung cancer cell growth in lab tests
- Prenatal supplement linked to improved child cognition and social behavior
- Antibiotic use from childhood linked to higher odds of IBS in young adulthood
- Pure cranberry juice may help protect teeth from decay
- Smartphones are wrecking teens' sleep, study indicates
Flavonoid found in citrus slows lung cancer cell growth in lab tests
Friedrich–Alexander University Erlangen–Nurnberg (Germany), October 20 2026 (Medical Xpress)
Quercetin is found in citrus fruits, onions and buckwheat and is known for its anti-inflammatory properties. Now researchers at Universitätsklinikum Erlangen at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) have investigated how the plant compound could help treat lung cancer. In the lab, experiments showed that quercetin slows the division of lung cancer cells and almost completely stops their migration. The results have appeared in the journal *Cell Death Discovery*.
Quercetin led to the tumor cells dividing more slowly in the experiments. In one of the two types of lung cancer cells studied, the plant compound also reduced oxidative stress. This stress is caused by reactive oxygen compounds in cells and can lead to the development of cancer.
Quercetin had a particularly pronounced effect on the migration of cancer cells—a key prerequisite for them to form metastases. The higher the quercetin dose, the fewer cancer cells migrated. At the highest dose, the migration almost completely stopped,.
In the studied cancer cells, the amounts of EGFR and PD-L1 decreased. EGFR takes up growth signals and transmits them into the cell. PD-L1 can help cancer cells hide from the body's own immune defenses.\\
Prenatal supplement linked to improved child cognition and social behavior
University of Colorado, October 20 2026 (Medical Xpress)
A nutritional supplement taken during pregnancy may support fetal brain development and improve children's cognitive performance and social behavior, according to new research from the University of Colorado.
The randomized clinical trial, published in the *American Journal of Obstetrics & Gynecology*, found that children whose mothers took phosphatidylcholine, a form of choline found naturally in foods, had fewer social withdrawal problems and scored higher on cognitive tests than children whose mothers received a placebo.
This is the largest randomized clinical trial of prenatal choline supplementation ever conducted. What this study showed that we have not observed before was an increase in the overall IQ of about eight points when measured at age 4. That put significantly more children into the higher IQ percentile on the test we used.
Researchers enrolled 206 pregnant women, randomly assigning them at 16 weeks of pregnancy to receive either 9,000 milligrams of phosphatidylcholine daily or a placebo until delivery. Researchers assessed children's behavior from 18 months to 4 years of age and measured cognitive performance at ages 3 and 4.
Among children whose parents completed behavioral assessments, 4% in the supplement group had elevated social withdrawal problems, compared with 24% in the placebo group. These behaviors can include limited interest in other people, withdrawing from social activities and reduced eye contact.
Children in the supplement group also scored an average of nearly eight points higher on standardized cognitive tests than children in the placebo group. Researchers also observed significantly fewer children with behavioral profiles and language difficulties commonly associated with autism spectrum disorder in the supplement group.
Antibiotic use from childhood linked to higher odds of IBS in young adulthood
University of Gothenburg (Sweden), October 19 2026 (Eurekalert)
IBS is a common digestive disorder that affects more than 60 million people across Europe, causing symptoms such as abdominal pain and changes in bowel habits. Whilst previous research has suggested a link between antibiotic use and IBS, evidence on whether childhood exposure is associated with IBS in adulthood remains inconsistent.
Researchers analysed data from 2,853 participants in the population-based Swedish birth cohort. Antibiotic prescriptions were obtained from the Swedish Prescribed Drug Register, when participants were aged 9–11 years, until one year before IBS was assessed at age 24. The researchers examined whether participants had received antibiotics, the total number of prescriptions received, and the classes of antibiotics prescribed.
At age 24, 10.0% of participants had IBS, of whom 79.4% were female. Antibiotic use was more common among those with IBS, with 87.8% having received antibiotics during the study period compared with 80.2% of those without IBS. After accounting for sex and family socioeconomic status, those who had received antibiotics had 1.5 times the odds of IBS (95% CI 1.0–2.2) compared with those who had not.
The odds of IBS increased progressively with the number of antibiotic prescriptions. Compared with those who received no antibiotics, participants receiving one or two prescriptions had 1.3 times the odds of IBS, rising to 1.6 times (95% CI 1.0–2.4) with three to five prescriptions and 1.7 times (95% CI 1.1–2.6) with six or more.
When individual antibiotic classes were examined, tetracyclines and cephalosporins remained significantly associated with higher odds of IBS after adjusting for sex and family socioeconomic status. Any use of tetracyclines was associated with 1.4 times (95% CI 1.1–1.8) the odds of IBS, while three or more prescriptions of cephalosporins were associated with 6.0 times the odds (95% CI 1.9–18.8).
Pure cranberry juice may help protect teeth from decay University of Illinois, Oct 21 2026 (News-Medical)
Boil them, mash them, simmer them in a sauce. UIC College of Dentistry researchers found another reason to add these tart berries to your grocery cart: oral health.
Medicinally speaking, cranberry juice is often used to ward off urinary tract infections. That’s because the crimson berries contain anti-inflammatory compounds called proanthocyanidins that unstick bacteria, like E. coli, from cells.
14 children and eight adults were randomly assigned to drink either unsweetened pure 100% cranberry juice, a cranberry juice cocktail containing 27% juice with added sugar, or water.
On the morning of the study, participants arrived with a night’s worth of plaque buildup on their pearly whites.
Thirty minutes later, the researchers collected plaque samples from the participants’ unswabbed teeth. They’d assess the beverages’ effects on these samples compared to those collected before the experiment.
Sure enough, the plaque exposed to pure cranberry juice appeared to be growing more slowly than the unexposed samples. Swishing with pure cranberry juice was also linked to less acid production in both adults and children — a key factor for healthy enamel.
Smartphones are wrecking teens' sleep, study indicates Seattle Children's Research Institute, October 21 2026 (Medical Xpress)
Teens who use their phones late into the evening suffer from delays in falling asleep, shorter total sleep time and sleep that's more restless and broken, researchers report in *JAMA Pediatrics*.
These findings suggest that reducing evening smartphone use, particularly after 10 p.m. and immediately before bedtime, may help improve sleep health in adolescents.
For the study, researchers analyzed data on 425 kids with an average age of nearly 15 who were participating in an ongoing study of adolescent brain development. They gathered nearly 7,600 nights of data from the participants.
Results showed that on nights when teens used their phone longer than their personal average after 10 p.m., they slept an average of 20 minutes less and fell asleep more than an hour (64 minutes) later.
Teens glued to their phones also were more likely to wake up again within a half-hour after they nodded off, researchers said.
There also was a dose effect, in that every extra minute of smartphone use past 10 p.m. above a teen's own average added to later sleep onset and reduced total sleep time, the study said.