Sarah Okonkwo
270 stories · Page 3 of 12
The Whole-Grain Sweet Spot Is 4 to 6 Servings, and It Nudged Five Heart-Risk Numbers at Once
60 to 100 grams a day moved body weight, blood pressure, cholesterol, blood sugar and an inflammation marker together, the same cluster clinicians usually treat one number, and one prescription, at a time.
Brain & AgingThe Cell Mistakes Its Own Broken DNA for a Virus, and the Panic Helps Wreck a Fast-Aging Fish
For decades the broken DNA got the blame. In fast-aging fish carrying a DNA-repair disorder, a major driver turned out to be the cell's own inflammatory overreaction, and silencing the sensor eased the ruin.
CancerA Top Cancer Researcher Logged 333 Tumor Reports After COVID Shots and Infection. Now He Wants the Study the Agencies Won't Fund.
Wafik El-Deiry helped map how the p53 gene guards against cancer. Now he has co-authored a review of 333 tumor reports that surfaced or came roaring back after COVID vaccination or infection, plus a blunt admission that no one has produced the population study to rule the vaccine link out.
Metabolic & WeightThey Sniffed Dark Chocolate on an Empty Stomach and Cranked Out 18 More Reps
Twenty-three fasted men sniffed 90 percent dark chocolate and did roughly 18 more leg-extension reps than on water, without feeling like they'd worked any harder.
Nutrition & FoodThe Study Clearing Sucralose Was Co-Written by the Company That Makes It
An independent lab found sucralose's byproduct breaks chromosomes and loosens the gut wall in cell experiments. The rebuttal telling you it's fine was co-written by the company that manufactures sucralose.
Brain & AgingUSC Scanned 459 Aging Brains Across India. The Wiring Just Under the Cortex, Not the Gray Matter, Tracked Who Stayed Sharp.
In 459 older adults across India, healthier short-range wiring just beneath the cortex was tied to a weaker link between gray matter loss and cognition, and the tie was strongest in people with the least schooling.
InvestigationsThe Sixteen Drug Companies Funding Britain's Biggest Health Study Can Mine Data Its Own Scientists Say Skews Rich and Healthy
Our Future Health signed up 1.9 million volunteers on £354 million of public money and £180 million from 16 drug companies. Its own scientists now warn the sample skews wealthy and healthy, and cannot yet say how common any disease actually is.
InvestigationsThe Government Is Keeping Almost All of Abbott's $385 Million Formula Settlement. The Families of the Dead Infants Get Nothing.
Abbott will pay $385 million over the plant tied to two infant deaths. Almost every dollar reimburses Washington's own nutrition programs, three whistleblowers split $69 million, and the families get nothing. The DOJ dropped the criminal case after Abbott gave $500,000 to the president's inaugural f
Brain & AgingScientists Quieted Aging Inflammation in Mice by Starving Zombie Cells, Not Killing Them
For years the anti-aging plan was to hunt down and kill the senescent cells driving inflammation. A Mayo and Sanford Burnham team quieted that inflammation in mice instead, by blocking the carrier that feeds their mitochondria the acetyl-CoA used to pry open inflammatory genes.
Nutrition & FoodThey Drew Blood From 719 Women and Children in Rural Bangladesh. Every Sample Had at Least Two Mold Toxins.
Every one of 712 whole-blood samples from a cohort of 719 rural Bangladeshi women and children carried at least two mold toxins, and 84 percent of participants carried three or more, including one the liver converts into a carcinogen.
Nutrition & FoodFour in Five Men Have Never Heard Milk Is Tied to Prostate Cancer
A vegan advocacy group's survey says only 20% of men know the link. The growth-hormone mechanism is well-mapped, the relative risks are modest, and nobody in a white coat is walking men through either one.
Autoimmune & InflammationA Fat 'Brake' Eased Pain in 49 Men but Barely Touched the Swelling
UCL researchers gave 49 healthy men a drug GlaxoSmithKline shelved after early trials. Pain resolved faster and a class of immune cells shrank, but the heat, redness, and swelling showed no significant change.
Metabolic & WeightThe Fast Every Type 1 Diabetic Is Warned Against Held Up in a Six-Month Trial
Thirty-two obese adults with Type 1 diabetes ate only between noon and 8 p.m. for six months. No rise in severe lows, severe highs, or ketoacidosis, and their HbA1c fell 0.46 points against the calorie-cutting group.
Metabolic & WeightOzempic Gave Old Mice a Diet's Longevity Payoff Without Slowing Their Metabolism
Semaglutide added 12 percent to old mice's median lifespan and matched calorie restriction on aging measures without slowing their metabolism the way dieting does. It was also female mice only, three months of dosing, and zero human longevity data under the fountain-of-youth headlines.
Metabolic & WeightArsenic's 'Detox' Pathway Has a Catch: The Workers Who Finished It Had Higher Blood Pressure
In 393 young Central American farmworkers carrying arsenic in their urine, the men whose bodies most efficiently converted it to DMA had systolic pressure up to 7 mmHg higher. The textbook calls that step detoxification.
CancerThe Gene That Derails Brain Development Is Also a Brake on Your Killer T Cells
The same gene whose failure derails brain development in children sits like a brake on the CD8 T cells your body uses against chronic hepatitis B and cancer. Take the brake off in the lab, and their fate reroutes toward fighters that do not burn out.
Brain & AgingFour Times the Odds of Losing Bowel Control: An ADHD Gut Signal Tangled Up With the Medication
Stimulants list constipation, nausea, and stomach pain among their common side effects. Most of the 23 studies pooling 1.9 million people never separated the medicated from the unmedicated, so the gut signal and the drug effect sit tangled together.
Nutrition & FoodThe Coffee-and-Bones Study Behind the Scary Headline Found No Significant Coffee Effect
The tea benefit was 0.003 grams per square centimeter, a number the authors themselves called too small to matter. The scary coffee result never cleared statistical significance.
Brain & AgingA Kinesiologist Argues Aging Has a Third Clock, and It Fades First
Georgia Southern's Li Li argues aging has a third clock, movement span, that starts narrowing before any disease shows up. A compelling reframe with one catch: it's an opinion paper carrying zero new data.
Drugs & FDATwo Factories Make the Starter IV Nutrition America's Preemies Live On. Both Are Closing, and the Backup Plan Has Killed Babies Before.
The predominant source of starter IV nutrition for premature newborns is two outsourcing facilities, and both are permanently closing. The FDA's fix: let hospital pharmacies mix it themselves for 180 days, sending the most unforgiving product in medicine back into the loosely regulated compounding t
Brain & AgingThe Sea Squirt That Reverses Aging Is a Mouse Study From 2022. The Capsules Are Already on Amazon.
The mice got 300 milligrams per kilogram by feeding tube, five days a week, for two months. The human trials used about a milligram a day, most were funded by the companies selling the capsules, and the largest could not beat placebo.
Metabolic & WeightA Blueberry Compound Pulled Fat Out of Muscle Cells by Saving the Protein That Burns It
Pterostilbene didn't switch on fat-burning in muscle cells. It stopped them from destroying the protein that runs it, and the stored fat came apart. The catch: this happened in a dish, and you can't eat your way to the dose.
Investigations97,000 Sibling Sets Later: Standard Air-Pollution Birth Studies Overshot One Risk and Buried Another
Comparing brothers and sisters born to the same mother stripped out many of the family-level confounders, and the scary preterm-birth links shrank while the growth-restriction link the conventional models kept underselling got stronger.
Infectious DiseaseRattlesnakes Carry Their Own Antivenom in Their Blood, and in Mice a Cocktail of It Beat CroFab Tenfold
Rattlesnakes shrug off key parts of their own venom. Biologists found the blood proteins behind that trick, mixed them, and in mice the cocktail neutralized diamondback venom about 10 times better than the commercial antivenom.