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Science News Archive 2008 - Page 70


Page 70 of 240

New lights on the pathogenic mechanisms of liver cirrhosis with ascites

Increased intestinal macromolecular permeability and urinary nitrite excretion are associated with liver cirrhosis with ascites. The study suggests that these factors may contribute to the development of encephalopathy in patients with liver cirrhosis.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
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.

Duke team finds compounds that prevent nerve damage

Researchers have identified compounds that block the activity of a specific enzyme, preventing brain injury and improving survival in fruit flies with Huntington's disease. The findings could lead to better treatments for degenerative diseases such as Alzheimer's and Parkinson's.

SourceDuke University Medical Center·JournalChemistry & Biology·DateSep 23, 2008

How to differentiate abdominal tuberculosis from lymphomas?

A research article compares CT findings in mesenteric tuberculosis and non-Hodgkin's lymphoma (NHL), revealing specific enhancement patterns and anatomic lymph node distribution. The 'sandwich sign' is more often found in NHL, aiding in differential diagnosis between tuberculosis and untreated NHL involving the small bowel mesentery.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Vascular marker of ovarian cancer identified

Researchers have identified TEM1 as a specific genetic marker for the vascular cells associated with tumor growth in ovarian cancer. High levels of TEM1 were correlated with decreased survival rates, making it a potential screening tool for early detection.

SourceAmerican Association for Cancer Research·DateSep 23, 2008

Plant antioxidant may protect against radiation exposure

A study led by the University of Pittsburgh School of Medicine has found that acetylated resveratrol can protect cells from radiation damage in mouse models. The researchers hope to develop a small molecule radioprotector that can be easily administered in emergency situations.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalJournal of General Internal Medicine·DateSep 23, 2008
Apple iPhone 17 Pro

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

£2 million study to reveal workings of dementia genes

Researchers at the University of Manchester are investigating the biological causes of FTLD, a group of dementias affecting the frontal and temporal lobes. They plan to study the role of genes in regulating tau and progranulin levels in the brain, with hopes of finding future therapies.

SourceUniversity of Manchester·DateSep 23, 2008

A promising endoscopic technique for rectal carcinoids

A new endoscopic technique using EMR-L with 3D-EUS has shown promising results in the complete resection of rectal carcinoids. The study demonstrated a significantly higher rate of complete resection compared to traditional EMR-L alone, with a vertical resection margin also increasing.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

The aetiology of acute gastrointestinal bleeding in aged patients

A study published in World Journal of Gastroenterology found that severe comorbidity is the main factor affecting clinical outcome in very old patients with acute gastrointestinal bleeding. Older patients (over 80 years) experience similar severity and rebleeding rates as younger populations, but higher mortality rates.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

'Chemical equator' discovery will aid pollution mapping

Researchers found a 50 km wide atmospheric chemical equator in cloudless skies of the Western Pacific, dividing pollutants between the two hemispheres. The discovery will aid pollution mapping and climate assessment by improving simulations of pollutant transport.

SourceUniversity of York·DateSep 23, 2008

How do the choline compounds change when apoptosis occurs?

Research found that apoptosis in liver cells leads to decreased total and free choline compound concentrations, but synthetical choline remains unchanged, providing insight into the puzzle of early-stage apoptosis changes.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Cutting edge discussion on age-related hearing loss

Age-Related Hearing Impairment (ARHI) affects nearly 1 in 3 people between the ages of 65 and 75, causing gradual changes in the inner ear. Recent advances in basic science may help prevent ARHI by understanding inner ear hair cell loss.

SourceAmerican Academy of Otolaryngology - Head and Neck Surgery·DateSep 23, 2008

Low sperm count may be associated with prenatal testosterone excess

A study by the Endocrine Society suggests prenatal testosterone excess may contribute to low sperm counts and reduced fertility in males. Researchers found that exposure to high levels of testosterone during fetal development can negatively impact male reproductive health.

SourceThe Endocrine Society·JournalEndocrinology·DateSep 23, 2008

Medicare HMO costs may prevent cancer patient clinical trial participation

A study by the University of Pittsburgh Cancer Institute found that Medicare HMO costs can be a significant barrier for cancer patients participating in clinical trials. The research suggests that the payment policy under these plans may be preventing vulnerable members of society from accessing state-of-the-art care.

SourceUniversity of Pittsburgh Schools of the Health Sciences·DateSep 23, 2008
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

A novel attempt of gene therapy for type 1 diabetes mellitus

A new study demonstrates that transferring human insulin genes to the gastrointestinal tract using a non-viral vector called chitosan nanoparticles can successfully treat type 1 diabetes in rats. The study found that this method is safe and efficient, without any wound or infection.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Peptide ghrelin may be involved in both alcohol dependence and overeating

A recent study found associations between variations in ghrelin genes and increased risk of heavy alcohol consumption and obesity. The research suggests that the ghrelin system may play a role in the brain-reward systems underlying addictive behaviors, including compulsive overeating and drug dependence.

SourceAlcoholism: Clinical & Experimental Research·DateSep 23, 2008
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Why does Gecko, a chinese traditional medicine, have anti-tumor effects?

A study published in the World Journal of Gastroenterology found that Gecko has anti-tumor effects by inducing apoptosis and down-regulating protein expression of VEGF and bFGF. This mechanism may provide a foundation for its effective constituent and offer an alternative to chemotherapy.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Case report: Diffuse large B-cell lymphoma with gastric infiltration

A case report describes a patient with stage IV diffuse large B-cell lymphoma (DLBCL) infiltrating the stomach, who responded well to chemotherapy. Endoscopic examination and biopsy confirmed the diagnosis, highlighting the importance of this diagnostic method for suspected gastric DLBCL.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Chronic hepatitis C infection in a patient with bone marrow hypoplasia

A patient with bone marrow hypoplasia contracted HCV through blood transfusion, yet maintained normal liver function despite high serum ferritin levels. The study highlights the complex relationship between HCV infection and immune status, suggesting potential for extra-hepatic manifestations such as arthritis and vasculitis.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
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.

The effect of Curcuma wenyujin on human HepG2 cancer cell

The study found that Curcuma wenyujin essential oil exhibits antiproliferative effects in HepG2 cells by inducing apoptosis, associated with cell cycle arrest and mitochondrial membrane potential loss. The results suggest the potential value of developing ezhu as a chemotherapeutic agent for liver cancer treatment.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Melting ice under pressure

Researchers used simulations to determine ice VII's melting temperature in high-pressure conditions, finding a molecular solid phase below 450,000 atmospheres and a superionic solid phase above. This discovery opens up possibilities for water existing as a solid in Neptune, Uranus, and Earth's deep interiors.

SourceDOE/Lawrence Livermore National Laboratory·JournalProceedings of the National Academy of Sciences·DateSep 23, 2008

OHSU Cancer Institute researchers study breathing during radiation

Researchers at OHSU Cancer Institute have determined that the prostate moves up and down by up to 2 millimeters during the breathing cycle, affecting radiation treatment accuracy. This new information will help doctors determine suitable margins for treatment, reducing side effects and improving patient outcomes.

SourceOregon Health & Science University·DateSep 23, 2008

A new therapeutic option for human hepatocyte cancer

A new therapeutic option for human hepatocyte cancer has been identified, leveraging parvovirus H-1 oncolytic therapy. The treatment targets p53-deficient tumors and induces apoptosis, potentially overcoming resistance to genotoxic agents.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Epstein-Barr virus predicts outcome in nasopharyngeal carcinoma

Researchers found that undetectable EBV DNA levels during treatment significantly reduced cancer recurrence risk, while detectable levels increased the risk of recurrence and metastasis. The study suggests using biomarker tests before and during treatment to guide clinical therapy.

SourceAmerican Association for Cancer Research·DateSep 23, 2008

Culture greatly shapes young people's drinking habits

A study of young people in seven countries finds that cultural influences outweigh factors like age and sex when it comes to drinking habits. The research highlights striking similarities in how young people drink, including socializing and enjoying alcohol in public venues.

SourceInternational Center for Alcohol Policies·DateSep 23, 2008

Side effects of monotherapy with lamivudine

Four patients with pre-exposed lamivudine resistance experienced rapid re-emergence of YMDD mutations and significant viral rebound after lamivudine re-treatment. Sequential administration of lamivudine is discouraged in these cases.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Step back to move forward emotionally, study suggests

A study by University of Michigan psychologist Ethan Kross found that processing emotions from a distanced perspective can facilitate coping and reduce negative moods. By taking a step back and reviewing the situation from afar, individuals can rationalize their feelings and work through negative experiences over time.

SourceUniversity of Michigan·JournalPersonality and Social Psychology Bulletin·DateSep 23, 2008

Black patients at higher risk for colon polyps

A study found that black patients undergoing screening colonoscopy have a higher prevalence of colon polyps compared to white patients. Black men and women were more likely to have large polyps, with increased odds in those over 50 years old.

SourceJAMA Network·JournalJAMA·DateSep 23, 2008
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.

The natural history of 'healthy-HCV carriers'

A study published in the World Journal of Gastroenterology found that HCV-infected patients without initial liver damage are at risk of fibrosis progression. Factors associated with this development include elevated transaminases, body mass index above 25, and time interval between biopsies.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008
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.

Is endoscopic ultrasound a better choice for staging of gastric cancers?

A meta-analysis of 22 studies found that endoscopic ultrasound (EUS) is highly accurate in staging gastric cancer, with higher sensitivity and specificity for advanced disease. EUS can help determine the most appropriate treatment approach for patients with gastric cancer, including curative or palliative therapies.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

A novel technique for detection tumor lymphangiogenesis

Researchers developed a novel technique for detecting tumor lymphangiogenesis in rabbits, using percutaneous hepatic injection of ultrasound contrast material. The method combines percutaneous transhepatic lymphosonography (PTL) with contrast-enhanced ultrasonographic imaging to improve diagnostic ability for liver cancer.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

What is the pituitary hormone secretion pattern in cirrhosis patients?

Researchers found that melatonin rhythm abnormalities worsen as cirrhosis progresses, and abnormal pituitary hormone patterns can predict hepatic encephalopathy development. These findings suggest that melatonin circadian rhythm abnormalities may be an early indicator of liver disease severity.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Bladder cancer detected via amplified gene in cells found in urine

A team of researchers at M. D. Anderson Cancer Center has discovered a biomarker for bladder cancer using fluorescence in situ hybridization (FISH) tests on urine samples, identifying all 23 cancer cases and correctly characterizing six of seven controls as not having bladder cancer.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJNCI Journal of the National Cancer Institute·DateSep 23, 2008

Methylation levels key to glioblastoma survival

Researchers found three subgroups of glioblastomas with varying degrees of methylation, leading to improved survival times in the subgroup with mixed levels. The study highlights the importance of methylation status in determining treatment outcomes and potential biomarkers for this disease.

SourceAmerican Association for Cancer Research·DateSep 23, 2008
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

What is the best strategy for treating Helicobacter pylori?

Researchers found that quadruple therapy is effective in treating H. pylori-related diseases, but side effects can compromise patient compliance. Modifying the regimen or educating patients about side effects can improve treatment outcomes.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateSep 23, 2008

Smart alarm clock for mobile phones

The HappyWakeUp smart alarm clock uses a microphone to detect subtle changes in sleep patterns, providing an optimal wake-up time. By waking users up during their natural 'awake' period, the device helps regulate internal clocks and reduces morning stress.

SourceTampere University of Technology·DateSep 23, 2008

New predictive tool can help determine treatment of breast cancer patients

A new predictive measurement, called a PEPI score, can help determine the treatment of breast cancer patients. A low PEPI score indicates little risk of relapse and allows patients to safely avoid chemotherapy after surgery. Women with high PEPI scores are at high risk of having their cancer return and require aggressive therapy.

SourceWashU Medicine·JournalJNCI Journal of the National Cancer Institute·DateSep 23, 2008

2 UCSF scientists recognized for transformative research

Two UCSF scientists, Yuriy Kirichok and Miguel Ramalho-Santos, received $1.5 million NIH grants to study molecular mechanisms of cell energy production and stem cell specialization. Their research aims to develop new therapies for age-related diseases and regenerative medicine.

SourceUniversity of California - San Francisco·DateSep 23, 2008
Fluke 87V Industrial Digital Multimeter

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

New ways to use biomass

Researchers have developed a new catalyst that directly converts cellulose into ethylene glycol, an important intermediate product for the chemical industry. The catalyst, made of tungsten carbide and nickel on a carbon support, achieves 100% conversion of cellulose with high selectivity.

SourceWiley·DateSep 23, 2008

Physicians often miss opportunities to show empathy

A study published in the Archives of Internal Medicine found that physicians rarely responded empathically to patients' concerns about mortality, symptoms, or treatment options. The researchers identified 384 moments of

SourceUniversity of Rochester Medical Center·JournalArchives of Internal Medicine·DateSep 22, 2008
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.

Aspirin and atherosclerosis

A recent study found that aspirin increases the expression of paraoxonase 1 and apolipoprotein A1, two proteins that help remove bad cholesterol from the bloodstream. This increase can lead to reduced risk of atherosclerosis, a condition characterized by the buildup of plaque in arteries.

SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Lipid Research·DateSep 22, 2008

Healthy blood vessels may prevent fat growth

Researchers at Indiana University discovered that healthy endothelial cells lining blood vessels can reduce the tendency of precursor cells to develop into fat cells. This finding could lead to new treatment options for cardiovascular diseases and obesity.

SourceIndiana University·JournalStem Cells·DateSep 22, 2008