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Stress may lead to better bird parenting

Research at Queen's University found that stressed birds have higher reproductive success and offer better care to their young. Female tree swallows with increased stress hormones fed their nestlings more frequently.

Apple iPhone 17 Pro

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

Designing safer glucocorticoid drugs

A team of researchers found that the protein LXR-beta is necessary for glucocorticoid drugs to cause severe side effects. In mice lacking LXR-beta, high blood glucose and fatty liver were avoided but immunosuppression remained.

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.

Novel diabetes hope comes from Chinese herbs

Researchers found that emodin from Chinese herbs can lower blood glucose and serum insulin levels in mice with diet-induced obesity. The herb's active compound effectively limits the effect of glucocorticoids, which contribute to insulin resistance.

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.

Stress puts double whammy on reproductive system, fertility

Researchers at the University of California, Berkeley, have found a critical piece in the puzzle about how stress causes sexual dysfunction and infertility. Stress hormones, such as glucocorticoids like cortisol, inhibit the body's main sex hormone GnRH, while also increasing another hormone GnIH, which directly inhibits GnRH.

JCI online early table of contents: May 18, 2009

Researchers have identified a molecular link between sleep and weight gain, suggesting that targeting T-type calcium channels could be beneficial for weight loss. Additionally, studies on glucocorticoid hormones have revealed their protective effects on the heart during ischemia/reperfusion injury.

How glucocorticoid drugs protect the heart

Researchers found that glucocorticoids induce production of PGD2, which protects rodent hearts from ischemia/reperfusion injury. Synthetic glucocorticoids may be more beneficial for humans following a heart attack than traditional ones.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Drug therapy for premature infants destroys brain cells in mice

New research reveals that commonly used drugs to treat chronic lung damage in premature infants can cause brain cell damage, potentially leading to cognitive and motor-control issues. Synthetic glucocorticoids like dexamethasone and betamethasone were found to be toxic to neural progenitor cells in mice.

Small protein may have big role in making more bone and less fat

Researchers have identified a short-acting protein GILZ that may disrupt the fat production pathway, leading to increased bone formation and decreased fat accumulation. Dr. Xingming Shi believes sustained GILZ action could be used to develop targeted therapies for osteoporosis and obesity.

Blood pressure drug curbs brain damage from PTSD

A study found that prazosin, an alpha-1 receptor antagonist, can block the increase of steroid hormones in the brain, which are associated with brain damage and cognitive impairment. This may provide a neuroprotective effect against post-traumatic stress disorder, Alzheimer's disease, depression, and schizophrenia.

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.

JCI table of contents: May 10, 2007

Researchers found that a gene deficiency in CalDAG-GEFI may explain the loss of platelet function leading to recurrent bleeding in patients with leukocyte adhesion deficiency III. Additionally, IL-33 and ST2 signaling was identified as a critical mechanism for protecting the heart from stress, suggesting potential new therapeutic targets.

JCI table of contents -- April 19, 2007

Triple-negative breast cancer cells are sensitive to cisplatin, a common chemotherapeutic drug that can be effective in treating the disease. Researchers also found that delta-Np63 and TAp73 proteins play a crucial role in mediating chemosensitivity to cisplatin.

JCI table of contents -- March 22, 2007

Prenatal glucocorticoid exposure has been shown to have long-lasting deleterious effects on cardiovascular, metabolic, and neuroendocrine function in offspring. Additionally, research has identified a protein implicated in both autism and leukemia, with aberrant splicing detected in individuals with these conditions.

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 research reveals the complexities of obesity/cortisol interactions

Scientists studied mice lacking POMC gene to understand obesity and fat distribution. The research shows that cortisol levels are not the sole factor, but rather part of a chain of hormonal signals associated with obesity. Glucocorticoids were found to accelerate weight gain and diabetes in treated mice.

Celestron NexStar 8SE Computerized Telescope

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

Sweet snacks could be best medicine for stress

Researchers found that consuming sugar snacks reduces glucocorticoid levels in rats, which can help alleviate physical and psychological stress. The study suggests that sweets made from natural sugar may be a healthy 'self-medication' option for managing stress.

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.

Glucocorticoid use increases risk of spinal fractures

Postmenopausal women taking glucocorticoids are at a significantly increased risk of spinal fractures, with nearly six-fold higher odds compared to those not using the medication. Long-term use for chronic diseases can lead to glucocorticoid-induced osteoporosis (GIO), which increases the risk of fracture.

Fluke 87V Industrial Digital Multimeter

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

Hormones Focus Of Study On How Responses To Infection Are Regulated

Scientists at the University of Illinois are investigating how glucocorticoids help regulate the body's response to infection, including changes in behavior. Glucocorticoids appear to modulate cytokine production and reduce behavioral effects, providing a protective mechanism against immune overreaction.

New Studies Of Human Brains Show Stress May Shrink Neurons

Studies using high-resolution MRI scans show that long-term stress can cause a crucial part of the human brain to shrink. Research has found links between stress hormones and atrophy in regions responsible for memory and learning, such as the hippocampus.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.