A new study by the Schepens Eye Research Institute reveals a previously unknown connection that stimulates immune response in the eye and other parts of the body. By blocking VEGFR-3 growth factor, researchers can arrest the rejection process, leading to improved survival rates for corneal transplant patients.
A brain imaging study found that people prone to depression have an overactive emotion-regulating brain circuit, even when they're not depressed. When tryptophan was depleted, most subjects with a history of mood disorder experienced temporary symptoms.
The Florida manatee population is rising in some regions, with annual growth rates of 3.7% and 6.2% in the Northwest and Upper St. Johns River regions, respectively. However, the Atlantic region's estimated growth rate is 1.1%, suggesting a possible decline or stability, while the Southwest region shows a negative growth rate.
Children with traumatic brain injuries (TBI) often face difficulties in retrieving and retaining information, and many struggle academically due to impairments. The study suggests that schools should provide better support and follow-up care for children returning from hospital after a head injury.
A new study by Northwestern University researchers shows that social networks can efficiently lead to global organization, even with imperfect information transmission due to noise or error. The model is adaptable and robust, capable of responding to external conditions, and people tend to adjust their opinions based on the majority
Researchers found that immune therapy against Alzheimer's disease not only removes the toxic amyloid plaque but also clears protein tangles, suggesting a broad assault on the disease. The treatment was shown to clear both hallmark lesions of AD by alleviating interference in the cell's protein garbage disposal system.
A study by University of Toronto researchers found high levels of mercury in sport-fish eaters' blood, particularly among Asian-Canadians. The findings emphasize the need for ongoing surveillance and education to minimize health risks from contaminated fish consumption.
Research from the University of Michigan suggests that the current federal plan may not be enough to protect the Gulf of Mexico's half billion dollar a year shrimp industry. The proposed goal of 30 percent nitrogen load reduction is insufficient, and a reduction of 40-45 percent is needed to achieve desired results.
Researchers found that black patients are more likely to receive care from physicians who report inadequate access to high-quality diagnostic imaging, sub-specialists, and other essential resources. This disparity in care may be driven by differences in the physicians' access to local services and specialists.
Researchers found that using specific antibodies to clear a certain type of brain lesion reversed abnormalities arising from another, halting disease progression. Early treatment significantly increases chances of success.
A study found that combining testosterone gel with sildenafil improved erectile function in men with low testosterone, who failed to respond to sildenafil alone. The combination therapy showed significant improvements in erectile function, orgasmic function, and overall satisfaction.
Researchers found four groups of genes with distinct expression patterns in leukemia cells sensitive or resistant to specific drugs, significantly related to treatment outcome. The study identified 123 previously unrecognized genes associated with drug resistance, representing potential targets for new agents.
The Explorer robot, developed by Carnegie Mellon University, successfully inspected hundreds of feet of live gas mains in Yonkers, NY. The robot's wireless capabilities and advanced cameras enable near-real-time images of the pipe's interior, reducing costs per foot of pipe inspected.
A novel protein vaccine candidate has demonstrated full protection against a lethal aerosol challenge with ricin toxin in mice, offering a promising solution to bioterrorism threats. The vaccine, RTA 1-33/44-198, was designed using molecular modeling and protein engineering techniques.
Researchers found that Homer1 or Homer2 gene knockout mice showed greater preference for chambers associated with cocaine administration and increased motivation to self-administer cocaine. They also exhibited neurochemical changes characteristic of addiction, including reduced glutamate levels during withdrawal.
Researchers found that men and women have different spatial orientations in environments due to physiological differences, such as inner ear size. The study suggests that these differences affect how individuals orient themselves in various situations.
Materials researchers created a metamaterial with a negative refractive index for microwaves, allowing it to transmit light differently than natural materials. This discovery has implications for space navigation and the location of stars, making it challenging to determine their origins.
Researchers found that Smad3 protein was present in B-cell and non-lymphocyte samples but almost absent in T-cell samples. In mice, deletion of the Smad3 gene impairs TGF-B's ability to stop T-cell proliferation. Further studies are needed to understand the mechanisms behind Smad3's absence in childhood T-cell leukemia.
A study by J. Todd Streelman found that human-induced disturbance accelerated the evolutionary process of cichlid fish, leading to two genetically distinct populations with distinct color patterns. The findings suggest a potential for rapid speciation and highlight the impact of human activity on evolutionary processes.
Researchers at University College London found that humans use a strategy similar to barn owls for sound pitches above middle-C, while gerbils adapt to detect low-pitched sounds. The study suggests the brain adopts an efficient strategy to locate sound sources, adapting to different frequencies.
Researchers found Archeopteryx had a brain three times larger than crocodiles and similar to modern birds, supporting the theory of evolution. The study disproves the idea that some dinosaurs couldn't fly due to feathers.
A survey of mothers reveals that they view pediatricians as 'parenting partners' and carefully select a doctor for their child. Key findings include the importance of personality, health insurance coverage, and compatibility with parenting objectives in choosing a pediatrician.
Researchers found starch grains from barley and wheat on a grinding stone at Ohalo II, dating back 13,000-45,000 years. This discovery suggests that people processed these grains to make them more digestible around 14,800 years ago.
Researchers explore the role of genetics, social organization, and sexual selection in shaping family structures and behaviors in various species. From pathogens to genes, scientists uncover the intricate mechanisms driving the evolution of complex social systems.
Researchers found that shortness of breath and impaired gag reflex without diarrhea are key predictors of death in foodborne botulism. Accurate diagnosis and rapid treatment are crucial, with antitoxin and intensive care necessary for survival.
A government policy providing free access to potent antiretroviral drugs has significantly reduced the HIV transmission rate in Taiwan, with an estimated decrease of 53%. The study, led by Chi-Tai Fang and Jung-Der Wang, used public health surveillance data to evaluate the impact of the policy on the country's HIV epidemic.