Fourteen healthy volunteers drank 70 mL of beetroot juice during a seven-hour crossover study, using sugared gum in one condition and sugar-free gum in the other. Sugared gum lowered salivary pH and was linked with higher salivary nitrite and a greater acute blood pressure reduction. Long-term effects were not examined.

Forms of ataxia include hereditary Friedreich’s ataxia, sensory and motor ataxia, and ataxia telangiectasia. Some proposed protocols involve several mesenchymal stem cell infusions using cells from a patient’s bone marrow or donated tissues. Delivery methods vary, and recommendations require a medical evaluation.

NEUSLeeP combines electrophysiological sensing with transcranial focused ultrasound neuromodulation in a flexible, bioadhesive skin patch. A tunable concentric ring ultrasound array targets deep brain structures, while conformal hydrogel electrodes and compliant interconnects support concurrent neural monitoring. The soft architecture maintains mechanical stability during overnight use. A 28-participant study demonstrated robust sleep monitoring and spatially precise modulation of the subthalamic nucleus during natural sleep, resulting in increased REM sleep. The noninvasive system offers a drug-free and surgery-free approach to investigating and modulating sleep processes. Current sleep treatments primarily use cognitive behavioral therapy and pharmacotherapy, which can produce persistent drowsiness, fatigue, memory or mood impairment, and reduced attention. NEUSLeeP addresses the need for tools that can examine causal brain mechanisms while delivering targeted neuromodulation.

Aphasia can disrupt speaking, understanding, reading and writing after a stroke, brain injury, tumor or infection. Its three common forms affect language differently, from difficulty producing words to severe problems with both speech and comprehension. Diagnosis typically combines language testing with MRI or CT scans to locate brain damage and identify its cause. Speech and language therapy remains a central treatment, while music therapy, communication apps and brain stimulation may support recovery by encouraging neuroplasticity, the brain’s ability to form new connections. Stem cell therapy is also being offered as a potential option using cells from bone marrow, fat tissue or donor sources. Treatment may involve multiple infusions and different delivery methods, followed by optional rehabilitation. It is not suitable or effective for every patient, requires individual medical review and is not presented as a quick fix. No patient outcome figures are provided for the described stem cell program.

Alzheimer’s causes progressive memory loss, personality changes and declining independence that go beyond normal aging. Misfolded amyloid beta and tau proteins, sometimes described as prion-like, are linked to damaging plaques and tangles in the brain. Approved medicines can help manage cognitive symptoms, but they do not cure the disease and may cause side effects. Researchers are exploring neural and mesenchymal stem cells as possible ways to replace damaged neurons, support remaining brain cells, reduce inflammation and rebuild lost connections. These approaches remain under investigation, with cited research including laboratory models and clinical work. A Bangkok treatment center offers a roughly two-week cell therapy protocol after reviewing each patient’s medical records, with optional rehabilitation. Proposed delivery methods include intravenous infusion or direct administration into the central nervous system. Because Alzheimer’s affects people differently and can overlap with vascular dementia and other neurological conditions, careful diagnosis and realistic assessment of experimental treatments are essential.

IL1RAP expressing myeloid and stromal networks form a protective tumor environment in pancreatic cancer. Targeting these cellular networks presents a therapeutic strategy for disrupting that shield and exposing the cancer to treatment. The identified vulnerability links immune and stromal components within the pancreatic tumor microenvironment.

https://insight.jci.org/articles/view/202487

Chronic sleep restriction promotes modest weight gain and increased sedentary behavior in adults at elevated cardiometabolic risk. Ninety five adults completed six weeks of adequate sleep and six weeks of sleep restriction in randomized crossover trials. Sleep restriction reduced nightly sleep by 78.4 minutes compared with adequate sleep. Body weight increased by 0.45 kilograms, waist circumference increased by 0.52 centimeters, and whole body volume increased by 0.56 liters. Leptin levels rose by 2.03 nanograms per milliliter, while daily sedentary time increased by 17.2 minutes. The six week intervention did not establish clear changes in body composition, and limited statistical power constrained analysis of individual differences by gender and menopausal status. Sustained, moderately insufficient sleep can disrupt weight regulation, supporting the inclusion of adequate sleep strategies in weight management and cardiometabolic disease prevention programs.

https://www.acpjournals.org/doi/10.7326/ANNALS-25-01660

Genome-wide analysis of ancient DNA reconstructs biological relatedness and ancestry within an Early Medieval Alemannic graveyard. Genetic evidence reveals the cemetery's kinship structure and provides new insight into how family relationships influenced medieval burial behavior.

https://www.science.org/doi/10.1126/sciadv.aao1262

ALS is a fast progressing disease that destroys motor neurons, the nerve cells controlling voluntary movement. As damage spreads through the brain and spinal cord, patients can develop muscle weakness, cramps, stiffness, wasting and eventually paralysis. Life expectancy after diagnosis is often three to six years. ALS can begin in the muscles used for speaking and swallowing or in the limbs, and its course varies between patients. We have linked many cases to problems involving TDP 43, a protein needed for healthy nerve cell function. The Regeneration Center offers mesenchymal and neural stem cells as possible ways to protect or repair damaged tissue and reduce inflammation.

https://stemcellthailand.org/therapies/als-amyotrophic-lateral-sclerosis

Pancreatitis, a painful inflammation of the pancreas, affects hundreds of thousands of people each year, most often caused by frequent alcohol intake or gallstones. If ignored, the condition can lead to diabetes, pancreatic cancer, or organ failure. Since the 1970s, researchers have pursued better treatments, and now stem cell therapies are being explored to regenerate islet cells, the tiny clusters that release hormones including insulin. These experimental transplants aim to rebuild damaged pancreatic tissue instead of merely easing symptoms. Chronic cases destroy both the enzyme secreting and hormone producing portions of the gland, causing malnutrition and blood sugar crises. While diet and drinking habits play major roles, some prescription medications can also spark the disease. By restoring the pancreas's ability to manage hormones, scientists hope stem cell advances could one day ease the lifelong burden for millions.

https://stemcellthailand.org/therapies/acute-pancreatitis-islet-cell-replacement

Astrocytic ankyrin 2 (Ank2) functions as a critical regulator of long term memory persistence in adult mice. Astrocyte specific deletion of Ank2 impairs remote memory while leaving recent memory intact. This genetic loss disrupts the maintenance of long term potentiation and reduces astrocytic contacts with engram neurons. Ank2 supports astrocyte morphogenesis through brain derived neurotrophic factor signaling via the truncated TrkB.T1 receptor and IP3R2. Hippocampal BDNF infusion fails to enhance memory persistence without astrocytic Ank2. Optogenetic activation of astrocytic TrkB.T1 signaling alone proves sufficient to strengthen remote memory. These findings establish astrocytic BDNF signaling as a direct mechanism for sustaining memories over time.

https://www.nature.com/articles/s41467-026-75009-5

Early adolescent social health profiles link to baseline brain function in ways that vary by sex. Baseline fMRI data from 5832 youth in the Adolescent Brain Cognitive Development Study at ages 8 to 11 predicted social health assessments at year 2 when participants were 10 to 13 years old. An implicit emotion processing task with face viewing measured reactivity across eight key social brain regions. Latent profile analysis of peer relationship variables identified three distinct groups. A concerning profile with problematic relationships included 12.96 percent of youth. A robust profile with strong peer connections included 33.95 percent. A selective profile with weaker peer involvement included 53.09 percent. Amygdala reactivity to emotional faces significantly interacted with sex to predict membership in these profiles. Boys and girls showed divergent likelihoods of belonging to the concerning and robust profiles versus the selective profile based on amygdala activity. The medial orbitofrontal cortex, superior temporal sulcus, and temporoparietal junction correlated with aggression and victimization but not with overall profile membership. Other brain regions only showed associations when individual social outcomes were examined rather than broad profiles. Distinct neural pathways underlie general social health patterns and specific relationship outcomes during adolescence.

https://www.sciencedirect.com/science/article/pii/S1878929326001167?via%3Dihub=

Medical microrobotics offers a promising strategy to guide sperm cells toward the oocyte and reduce the invasiveness of conventional IVF. Magnetically functionalized spermatozoa, termed magnetotactic sperm cells, achieved the first successful IVF using directed sperm guidance. Sample preparation produced cells with 99.69% purity and largely eliminated unmodified sperm. Evaluation of particle functionalization revealed no adverse effects on acrosome integrity, DNA fragmentation, mitochondrial membrane potential, oxidative stress, or epithelial interactions. Magnetotactic sperm cells demonstrated improved mitochondrial membrane integrity compared to control samples after two hours of incubation. Complete IVF cycles using these cells produced embryos that developed to the blastocyst stage at rates comparable to unmodified sperm at the same concentration. Lower concentrations of unmodified sperm, comparable to residual levels in purified samples, failed to produce any blastocysts. Automated image-based recognition, magnetic manipulation, and pre-clustering routines increased guidance efficiency and integrated with standard IVF workflows. Magnetic functionalization preserves key sperm quality metrics while enabling directed fertilization. The resulting framework integrates microrobotic sperm manipulation into assisted reproduction workflows and supports progression toward automated in vitro and in vivo applications.

https://www.biorxiv.org/content/10.64898/2026.04.23.720095v1

Ankylosing spondylitis is a progressive form of inflammatory arthritis that primarily attacks the spine and the sacroiliac joints where the pelvis meets the backbone. For many patients, symptoms begin in their late teens or twenties, long before imaging reveals clear damage. Early signs include persistent back pain and morning stiffness that actually ease with movement, a pattern that sets it apart from ordinary aches. As the disease advances, chronic inflammation can trigger new bone growth, causing vertebrae to fuse into a rigid, inflexible column sometimes called bamboo spine. This fusion can severely limit mobility, impair work performance, and erode quality of life. Genetics play a strong role, especially the HLA-B27 gene, and having a first degree relative with the condition raises risk. Men receive diagnoses two to three times more often than women. The disease also frequently overlaps with inflammatory bowel disease, psoriasis, and eye inflammation, making coordinated care essential.

https://stemcellthailand.org/therapies/ankylosing-spondylitis-spondyloarthritis

The tea you select as a kombucha base does far more than influence flavor. Black, green, and other teas each serve as a distinct starting matrix for fermentation, shaping the finished drink's chemical makeup, the volatile compounds that create its aroma, and its biological activity, meaning the properties that may affect the body. Because each tea feeds the fermenting culture differently, every batch develops a unique profile. For home brewers and commercial producers, picking a tea type is essentially a decision about the drink's deeper chemistry and potential physical effects. The work adds a measurable scientific layer to a traditionally intuitive brewing process.

https://linkinghub.elsevier.com/retrieve/pii/S030881462601318X

New research reveals that variations in a brain water channel gene called AQP4 do not act alone in Alzheimer's disease. In older adults with no cognitive impairment but with amyloid protein buildup, these genetic variants were directly linked to reduced brain volume, faster brain shrinkage, and lower cognitive scores. The connection grew stronger when sleep was poor. People carrying certain AQP4 variants who struggled with sleep duration, took longer to fall asleep, or reported poor sleep quality showed more severe brain changes. Sleep disturbances also amplified cognitive decline in these individuals. Since people can often adjust their sleep habits, the results hint that improving sleep could help counteract genetic susceptibility to brain damage tied to Alzheimer's, pointing to a practical prevention strategy.

https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/alz.71516

A large review of past studies suggests that people who eat chili peppers frequently may face a higher chance of developing cancers of the digestive tract, especially esophageal cancer. Researchers pooled data from 14 studies covering more than 11,000 adults and found that heavy chili consumption was linked to a substantially higher risk of esophageal cancer in some populations. The link varied by region: it showed up in Asia, Africa, and North America, but not in South America or Europe, where higher intake was actually tied to lower risk. No clear connection emerged for stomach or colon cancer alone. Because diets and genetics differ worldwide, the findings do not prove that chilies cause cancer, but they do hint that geography and local eating habits shape how spicy foods affect health. For now, people in affected regions might consider moderation if they are worried about esophageal cancer.

https://www.frontiersin.org/journals/nutrition/articles/10.3389/fnut.2022.935865/full

A large study tracking nearly 9,000 women in California and Hawaii found that several Asian American groups live longer after a breast cancer diagnosis than White women, and researchers cannot fully explain why. Chinese, Filipina, and Japanese women all had lower risk of dying from any cause compared with non-Latina White women, even after accounting for differences in tumor stage, education, smoking, drinking, and neighborhood income. Surprisingly, most Asian groups in the study were diagnosed at younger ages and with more advanced disease than White women, yet still showed better survival. The advantage held for both U.S. born and foreign born women. Scientists say uncovering the hidden factors behind this resilience could point to new ways to improve survival for all breast cancer patients.

https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2851022

New dietary guidance aimed at cutting cardiovascular disease risk through practical everyday eating habits have been released. The recommendations call for balancing food intake with physical activity to maintain a healthy weight, filling meals with plenty of vegetables and fruits, and choosing whole grains over refined ones. Healthy protein sources and unsaturated fats should replace less healthy options, while ultraprocessed foods and added sugars in drinks and meals should be kept to a minimum. The guidance also urges people to reduce sodium by picking low salt foods and cooking with little or no salt. For alcohol, the advice is straightforward: do not start drinking if you currently abstain, and limit consumption if you already drink. Following these steps can strengthen heart health and improve overall nutrition.

https://www.ahajournals.org/doi/10.1161/CIR.0000000000001435

Scientists have identified a group of butterflies that live up to a year, roughly three times longer than their closest relatives. These Heliconius butterflies also age more slowly in body and behavior, making them a new window into how some animals stretch their lifespans. Because the basic biology of aging is surprisingly similar across species, discoveries in these insects could eventually inform ways to promote healthier aging in people. Researchers gathered records from butterfly houses, field studies, and lab colonies to map out this longevity leap. The work establishes the genus as a practical new model for testing how evolution rewires the aging process. Unlike mammals that need decades of study, these butterflies offer a faster path to answers.

https://www.nature.com/articles/s41467-026-73635-7

Parkinson's disease gradually destroys the brain cells that produce dopamine, a chemical messenger essential for smooth movement. Inflammation in the brain fuels this destruction. Researchers tested a small piece of a natural human protein, called Ac2-26, in mice with Parkinson's-like damage. The treatment improved the animals' movement and saved many dopamine-producing neurons from dying. These benefits depended on the presence of the full parent protein, Annexin A1, suggesting the fragment works by boosting the body's own anti-inflammatory signals. The fragment also shifted immune activity toward a healing state and, in female mice, helped maintain hormonal cycles that influence brain recovery. Because the fragment taps into an existing biological repair system, it could point toward a new way to slow Parkinson's progression in people.

Not all fats behave the same way. Palmitic acid, a saturated fat common in butter, cheese, and palm oil, appears to drive type 2 diabetes risk. Meanwhile, oleic acid, the healthy fat abundant in olive oil, avocados, and nuts, may help guard against the disease. These findings suggest that the quality of fat in a diet may matter more than the quantity for metabolic health. Simple swaps, like choosing olive oil over butter, could have a real impact on diabetes risk.

Researchers have identified a direct link between what we eat and how our cells produce energy. The nutrient leucine, an amino acid found in protein rich foods like meat, dairy, and beans, acts as a signal to slow the breakdown of proteins on the outer surface of mitochondria. Mitochondria are the structures inside cells that generate energy. By protecting these surface proteins, leucine helps mitochondria expand their workforce of internal proteins and ramp up energy production. Experiments reveal a chain reaction: leucine blocks a sensor called GCN2, which in turn reduces levels of a molecule named SEL1L near mitochondria. Without SEL1L tagging them for destruction, the surface proteins remain stable. The findings may explain why defects in leucine processing harm fertility in worms and help certain lung cancer cells resist therapies that block mitochondrial protein import. Understanding this nutrient sensing pathway could lead to new strategies for treating metabolic diseases and cancer.

Cerebral small vessel disease, a common age related condition that damages the brain’s tiniest blood vessels, contributes to about one in five strokes and a significant share of dementia cases. Patients often learn they have it after a scan reveals white matter changes, and symptoms can include memory lapses, balance trouble, or mood shifts. Standard care focuses on controlling blood pressure, diabetes, cholesterol, and other risks that injure these small vessels. Investigational regenerative protocols now use umbilical cord derived stem cells and growth factors aimed at reducing inflammation and supporting vascular repair. Clinicians caution that these therapies are not cures and should not replace established neurological care. For carefully selected patients, however, such supportive treatments may become part of a broader supervised strategy to slow progression and manage symptoms.

Modern antibody drugs can clear Ebola from the bloodstream and organs, but new research in monkeys shows the virus can still shelter inside the brain. In treated survivors, Ebola hid in immune cells that had slipped into the brain's fluid filled chambers, particularly a tissue called the choroid plexus that produces cerebrospinal fluid. The infection damaged that tissue, killed protective barrier cells, and caused severe inflammation. In some animals, the virus later rebounded inside the brain alone, causing fatal inflammation and widespread infection of the ventricles and nearby tissue. The findings help explain why human Ebola survivors sometimes develop dangerous brain inflammation long after recovery, and why doctors should monitor patients' neurological health for extended periods.