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Why we could all do with a siesta

Scientists at the University of Manchester have identified a previously unknown mechanism by which glucose blocks brain cells responsible for regulating wakefulness. This finding has implications for understanding and treating disorders such as narcolepsy, obesity, and addiction.

Growing diabetes epidemic: Patient/physician disconnect on disease management

A nationwide survey shows a significant gap in understanding of type 2 diabetes management, with patients feeling knowledgeable about their condition but not following treatment regimens as prescribed. The Diabetes Roundtable advocates for a team-centered approach involving patients, physicians, and educators to improve care outcomes.

New mechanism explains glucose effect on wakefulness

A new mechanism explains how glucose inhibits neurons that regulate wakefulness, revealing a role for previously unknown potassium ion channels. Glucose levels affect the firing rate of these neurons, shedding light on cellular pathways regulating vigilance states and energy balance.

Joslin-led study reveals new findings on insulin signaling in the liver

A Joslin-led study has discovered that insulin signals to the liver differently for glucose and lipid metabolism, opening the door to developing targeted therapies. The research reveals new insights into phosphoinositide 3-kinase (PI3K) pathway, which regulates insulin's action in the liver.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Ghrelin: A player in diabetes but not obesity?

A recent study found that blocking ghrelin may improve insulin sensitivity and glucose control in mice, potentially providing a new approach for treating type 2 diabetes. However, the study also raised concerns about potential long-term risks of increasing ATP production by pancreatic cells.

National survey estimates prevalence of type 2 diabetes among adolescents

A national survey found that approximately 134,071 US adolescents have type 2 diabetes, with 39,005 having the condition and 2,769,736 having impaired fasting glucose levels. The study suggests a significant public health concern among this age group due to the high conversion rate from impaired glucose tolerance to type 2 diabetes.

A biosensor layered like lasagna

A new biosensor technology has been developed that uses static electricity to layer proteins on carbon nanotubes, allowing for precise detection of biological chemicals and environmental agents. The technique enables enzymes to self-assemble in a layer-by-layer manner on the nanotube, resulting in improved sensitivity and specificity.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Losartan prevents life-threatening insulin resistance in burn injuries

Researchers found that administering losartan to rats with insensate third-degree burns reversed the insulin resistance caused by the burn injury, returning glucose levels to normal. The study suggests that blocking the renin-angiotensin system may be a key to preventing this condition in severe burn patients.

Liver signal critical for insulin's brain action

Researchers have found that liver signal STAT3 mediates the effects of brain insulin, which regulates glucose balance and insulin response. This discovery provides a potential therapeutic target for type 2 diabetes, a condition characterized by impaired glucose production in the liver.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

UCLA researches heart disease-glucose connection

A study by UCLA researchers found that men with cardiovascular disease may benefit from lower blood sugar levels, but women's risk of death increases with higher glucose levels. The research analyzed data from over 1,200 patients and suggested that there is no 'normal' blood sugar level for men with heart disease.

Diabetic hearts make unhealthy switch to high-fat diet

Researchers found that diabetic patients' heart muscle uses about half as much glucose and four times more fat for energy than non-diabetics. This increased reliance on fat can lead to inflammation, cell death, and heart dysfunction.

Darkness unveils vital metabolic fuel switch between sugar and fat

A study by the University of Texas Health Science Center at Houston has identified 5'-AMP as a key molecular mediator that switches mice from burning glucose to burning fat in response to darkness. This switch is also observed in active mammals, such as bears and humans, and may lead to new therapies for obesity and type 2 diabetes.

JCI table of contents: December 22, 2005

Researchers found that expressing active MMP-9 in macrophages within atherosclerotic plaques leads to their rupture, causing blood clots and reduced blood flow. Additionally, the inactivation of focal adhesion kinase in cardiomyocytes promotes eccentric cardiac hypertrophy and fibrosis in mice.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Tight glucose control cuts heart disease by half in type 1 diabetes

Research shows that tight glucose control significantly reduces heart disease and damage to the eyes, nerves, and kidneys in people with type 1 diabetes. The study found a 42% lower risk of cardiovascular events and a 58% lower risk of serious events like heart attacks or strokes.

Gladstone study links Alzheimer's with toxic protein fragments

Researchers found that specific fragments of the apoE4 protein are neurotoxic and accumulate in mitochondria, leading to neuronal death characteristic of Alzheimer's disease. Blocking interaction of these fragments with mitochondria may be a potential new strategy for inhibiting detrimental effects.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

JCI table of contents: December 1, 2005

In a study published in the Journal of Clinical Investigation, Columbia University researchers discovered that replacing leptin in lean individuals who lost weight restored fat mass and reversed metabolic changes. The findings suggest that therapeutics targeting the leptin signaling pathway may assist in maintaining reduced body weight...

Unexpected function for a key regulator of blood glucose levels

Scientists at the Salk Institute discovered a key cellular switch that instructs the liver to produce more glucose when blood sugar levels run low. The switch, called TORC2, limits its own activity to prevent excessive glucose production, which is missing in diabetic individuals.

How protein-rich diets curb hunger

A study of rats reveals that protein-enriched diets induce glucose synthesis in the small intestine, which is sensed by the liver and brain, ultimately leading to a decline in food consumption. This finding suggests that glucose metabolism in the small intestine may be a new target for treating food intake disorders.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Key regulator of blood glucose levels discovered

Researchers at the Salk Institute have identified a new target for diabetes treatment: the protein TORC2. TORC2 regulates glucose production in liver cells and its activation can improve insulin sensitivity. The discovery holds promise for developing more effective diabetes medications.

Short-term bio sensors monitor from afar

Researchers at Penn State developed implantable glucose sensors to monitor troops' metabolic health in the field. The sensors can detect glucose, oxygen, lactate, and pyruvate levels, providing valuable insights into a soldier's overall metabolic picture.

The link between fasting and acute attacks of porphyria

A team of researchers has discovered a molecular missing link that explains why fasting brings on acute attacks of the genetic disease hepatic porphyria. Fasting increases levels of PGC-1a, which regulates the activity of an enzyme in the heme production pathway, leading to toxic buildup of precursor molecules.

Bacteria are key to 'green' plastics, drugs

Researchers at Rice University have developed a bacteria that produces succinate, a key chemical precursor for 'green' plastics and drugs. The breakthrough could lead to the creation of sustainable products using renewable resources like grain sorghum.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Life-extending protein keeps blood sugar in check

Researchers found that Sirt1 protein enhances glucose-stimulated insulin secretion in mice, improving glucose tolerance. The study suggests therapeutic interventions for the prevention and treatment of diabetes.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Diuretics effective for people with diabetes and high blood pressure

A recent study published in Archives of Internal Medicine found diuretics to be equally protective against fatal coronary heart disease or non-fatal heart attacks among people with diabetes. Additionally, diuretics were shown to be more effective in lowering systolic blood pressure and reducing the risk of congestive heart failure.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Fat's fate depends on its source

A new study published in Cell Metabolism found that normal metabolism requires so-called "new" fat to maintain glucose, lipid, and cholesterol homeostasis. The researchers discovered that old fat stores alone failed to set critical metabolic pathways in motion, leading to a marked decline in gene activity.

New fat is needed to clear old fat from the system

Genetically engineered mice with a missing enzyme in their livers developed fatty liver disease when placed on a zero-fat diet. The study found that consuming new fat, which is produced in the liver or consumed in food, helps regulate fat burning and prevents liver damage.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Diabetes and pizza: Slow and steady insulin delivery wins the race

A new study found that spacing out insulin given by an insulin pump in two doses, one over eight hours, can keep glucose levels more favorable than a single dose or double dose taken over shorter periods. This method showed improved blood glucose control after a pizza meal without causing hypoglycemic events.

FGF-21 finds itself as a new therapy for type 2 diabetes

Researchers discovered that FGF-21 regulates glucose uptake in human fat cells, significantly reducing plasma glucose levels and triglycerides. FGF-21 also protected animals from diet-induced obesity, providing evidence for its therapeutic potential in treating type 2 diabetes.

Propensity for obesity, diabetes, may occur in utero

Researchers found that rat fetuses exposed to a high-carbohydrate diet in utero developed increased insulin levels, appetite stimulation, and obesity. The study suggests that such malprogramming could be interrupted if the mother's weight and insulin levels are normalized before pregnancy.

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Drugs targeted at muscle cells

Researchers have discovered two new experimental drugs that target peroxisome proliferators-activated delta receptors (PFAARä) in muscle cells, increasing glucose absorption and boosting energy production. The findings offer a potential alternative to insulin therapy for patients with Type 2 diabetes.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Treatment of sleep apnea lowers glucose levels in diabetics

A study by University of Illinois Chicago researchers reveals that continuous positive airway pressure therapy can significantly reduce glucose levels in diabetic patients. This reduction in glucose levels can help prevent late-stage complications such as cardiovascular and kidney disease.

Probable trigger of kidney disease in diabetics identified

Scientists have made a breakthrough in understanding diabetic nephropathy by identifying CD36 as the probable trigger of kidney disease in diabetics. High glucose levels cause a change on the surface of cells, triggering the production of CD36, which leads to kidney cell death.

Diabetes' link to obesity broken in mice

Researchers genetically altered mice to resist obesity but still develop early signs of diabetes, revealing the complex network of factors leading from obesity to diabetes. By applying a drug treatment, they increased insulin sensitivity, a primary goal of diabetes treatment.

JCI table of contents

Researchers propose a new antiviral therapy targeting the smallpox growth factor, demonstrating effectiveness in lowering morbidity and mortality in infected mice. In another study, human bone marrow-derived stem cells are shown to regenerate myocardium after myocardial infarction, providing a potential approach for heart repair.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Carbon nanotubes yield a new class of biological sensors

Researchers at Illinois have developed a new class of biological sensors using single-walled carbon nanotubes. These sensors can detect glucose concentrations in human tissue, providing potential applications for diabetes management and other medical conditions.

Sleeping, waking, ... and glucose homeostasis

A mouse study revealed that the molecular clock genes Bmal1 and Clock play a crucial role in regulating blood sugar levels. Disrupting these genes led to impaired glucose regulation, even with insulin treatment. The study suggests that our internal circadian clock may influence blood sugar control beyond diet.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

OHSU study: Bacterial switching mechanism key to survival

Researchers at OHSU have determined the structural basis underlying a crucial mechanism that allows gram-positive bacteria to adapt to available energy sources. This finding could lead to the development of new antibiotics that disrupt this mechanism, making bacteria more susceptible to counter-attacks by the human body.