Sarah Okonkwo
325 stories · Page 4 of 14
One Hormone Starves the Brain and Floods the Heart: The FDA's First MCT8 Drug Treats Only the Flood
Emcitate is being called the first treatment for MCT8 deficiency, but its FDA label covers the racing heart and the wasting body, not the brain disability that defines the disease.
CancerA Scientist Chased One Missing Blood Marker for Twenty Years. The Answer Was a Tiny Gene Hiding in Plain Sight.
More than 99.9 percent of people carry a blood marker called AnWj. For most of the few who don't, the absence is acquired, a sign of an underlying blood disorder or cancer rather than something they were born with.
Metabolic & WeightMounjaro Turned On Calorie-Burning Fat in Mice That Ate Exactly the Same Amount
Tirzepatide mice ate the same calories as the controls and still burned more, by firing up brown fat. Adults carry only a few grams of it, and it shrinks in exactly the people taking the drug.
Metabolic & WeightKangaroo Care Was Built for Babies Fighting to Survive. A Trial Now Asks What It Does for the Ones Who Aren't
Skin-to-skin contact cut deaths among low-birth-weight newborns by a quarter. A 516-baby trial in Uttar Pradesh is now testing whether eight hours a day helps healthy, full-term infants too, and whether medicine has been underselling it.
Brain & AgingAlzheimer's Drugmakers Bet on Raising This Brain Sugar. Glucosamine May Be Overfeeding It.
In UF Health records, people with mild cognitive impairment who took the joint supplement were 25 percent more likely to slip into dementia. Glucosamine feeds the same brain chemistry a failed Alzheimer's drug was built to raise.
InvestigationsA Memphis Team Linked Tap-Water Fluoride to Kids' Testosterone, Sodium, and Uric Acid
In 4,470 American children, each unit of predicted plasma fluoride from tap water tracked with a testosterone geometric mean ratio of 0.49, plus higher serum sodium and uric acid. The authors declared no external funding.
Autoimmune & InflammationThe Cell Long Dismissed as Brain 'Glue' Is Presenting Your Nerves to the Immune System
For a century, astrocytes were dismissed as the brain's passive scaffolding. Now researchers have caught them inside multiple sclerosis lesions dressed as immune cells, arming the very T cells that attack the brain.
Brain & AgingBlood Pours Into the Mouse Cortex Seconds Before REM, Then the Neurons Run Low on Fuel Anyway
About 50 seconds before REM sleep starts, blood volume surges across a sleeping mouse's cortex. Then the neurons' usable energy drops sharply anyway, and no one can yet say what they are burning it on.
Autoimmune & Inflammationargenx's Own Scientists Found Antibody Levels Alone Don't Explain Who Its $225,000 Myasthenia Drug Helps
Six of the paper's authors work for argenx and hold its stock. Their data on 50 patients shows efgartigimod's benefit tracked more closely with how thoroughly it disarmed the rogue antibodies than with how many it stripped away.
Nutrition & Food87 Trials Found the Whole-Grain Sweet Spot: Sixteen Markers Nudged Healthier, None of Them by Much
Sixty to a hundred grams of whole grain a day nudged weight, cholesterol, blood pressure and inflammation the right way across 87 randomized trials. The median trial ran eight weeks, every effect was tiny, and not one counted an actual heart attack.
Drugs & FDATrump's FDA Nominee Backed Cutting the Vaccine Schedule, Then Hid Behind 'Safe and Effective' Under Oath
Heidi Overton stood beside Trump as he cut the childhood vaccine schedule from 18 diseases to 11. At her confirmation hearing she spent two hours calling every FDA-approved vaccine 'safe and effective' and refused to defend the reform she coordinated.
Metabolic & WeightOne in Six Kids on Weight-Loss Drugs Was Diagnosed With a Nutrient Deficiency, and Only 5 Percent Got Nutrition Counseling
The alarm about kids going short on vitamin D on Ozempic-style drugs came from a study funded by Abbott, which sells the very nutrition drinks marketed to fill those gaps.
Brain & AgingI Track My REM Sleep Every Night. This Study Made Me Stop Trusting the Number.
The viral headline says more REM sleep guards you against 83 diseases. But a brain sliding toward Parkinson's shreds REM years before diagnosis, and the study's own two-year exclusion test quietly agrees.
Metabolic & WeightForever Chemicals, Pregnancy, and the Vitamin That Might Decide Who Gets Hurt
Early-pregnancy PFAS tracked with gestational diabetes in a 420-woman China cohort, but almost entirely in mothers already low on vitamin D. A 5,229-pregnancy US analysis found no added risk at all. The gap between them may come down to one cheap blood test.
Nutrition & FoodCaffeine Can Flatten Your Deep Sleep While You Sleep Right Through the Night
On caffeine, the slow brain waves that make sleep restorative can thin out even when you fall asleep fast and wake up sure you rested.
Nutrition & FoodThe Older Adults Whose 'Biological Age' Dropped Ate More Carbs and Kept the Meat
The omnivorous, low-fat, high-carbohydrate group showed the strongest drop. The keto-style omnivore group was the only one of four that didn't budge at all.
Metabolic & WeightThe Headlines Blamed Stress. The Data Blamed Belly Fat, Cigarettes, and Poverty.
In 488,079 UK adults, chronic inflammation tracked with a heart quietly remodeling into a smaller, stiffer pump. The loudest drivers were belly fat, cigarettes, and poverty. The paper points at a druggable inflammation pathway; its senior author discloses fees and grants from Bayer and Google's Cali
Autoimmune & InflammationThe Air Never Arrives One Pollutant at a Time, but the Rules Pretend It Does
In a big European analysis, almost every pollutant tested on its own came back borderline. Measure the whole mixture the way it actually reaches the lung, and the adult-asthma signal shows up.
Metabolic & WeightWhere Taiwan's Air Got Dirtier, Early Kidney Disease Turned Severe 2.25 Times as Often
Taiwan tracked 424,000 people with early kidney disease and the air they breathed. Where PM2.5 climbed, more of them slid toward dialysis and death. Where it fell, fewer did.
Nutrition & FoodEven the Vitamin C Made the List: 112,000 People and Eight Everyday Preservatives Tied to High Blood Pressure
Ascorbic acid, citric acid, sodium nitrite: three of eight common food preservatives that a 112,000-person French cohort has now linked to higher blood pressure, with the researchers asking the FDA and EFSA to re-check them.
Metabolic & WeightCrash Diets Rewire Your Gut to Sabotage the Next One
In mice, transplanting the gut microbes of weight-cycled animals into healthy ones handed over the bingeing with them. Crash dieting reshapes the gut, and the diet industry keeps selling you the fix for damage its last plan made.
Brain & AgingA Bendable Fiber Thinner Than Six Hairs Records, Doses, and Stimulates a Mouse Brain at Once
Silicon brain probes scar the tissue they're built to read. A soft optical fiber from Denmark records, doses, and stimulates neurons at once, in mice, with a pharma foundation and pending patents behind it.
Autoimmune & InflammationThe 47th Human Blood Group Was Hiding in a Protein Almost Too Small to Find
More than 99.9% of us carry the AnWj antigen without knowing. For the rare few born without it, a routine transfusion can turn dangerous, and until now no genetic test could reliably identify them before the damage was done.
Infectious DiseaseFor 400 Years After the Black Death, Plague Kept Walking Back Into Europe on War Roads
Twenty-six sets of medieval teeth trace Yersinia pestis splitting into three branches around 1500, with the later lineages tracking the roads armies and refugees traveled. The pattern points to repeated re-introductions, plus some strains that may have dug in locally.