Sertoli cell transfer restores sperm production in infertile mice
... which sperm development takes place." Much of the volume of a mammalian testis consists of tightly coiled seminiferous tubules that hold mature sperm. Sperm development also occurs within these tubules, which are home to spermatogenic stem cells, the seeds from which spermatogenesis arises. Seminiferous ...$3.2 million project to document dioxin levels in Houston ship channel
...research group will use a method called high water volume sampling, where a large amount of Ship Channel water will be systematically concentrated down to a very small sample from which lab technicians can then determine the actual levels of dioxins. The group also will collect samples from fish and crab ti...Funding for global protein database
...investigator of the project. "With the increasing volume and variety of protein sequences and functional information, UniProt, as the central database of protein sequence, will function as a cornerstone for a wide range of scientists active in modern biological research, especially in the field of proteomi...Purdue veterinarian studies compulsive behavior in dogs
...uth and barking monotonously without any change in volume or intonation. Luescher has seen animals with severe stereotypical behaviors that affect their daily living. For example, one dog stopped drinking water because its shadow was a distraction. "The longer people allow their pet's behavior to be ignored...MRI technique lets researchers directly compare monkey and human brains
...technique that measures blood volume and flow and blood-oxygen lev...ture, fMRI measures the flow, volume and oxygenation of blood in tissue. In the current study, this technique was us...Celebrex may be safe for preterm labor, preliminary study finds
...gnificant change in the celecoxib group. Also, the volume of amniotic fluid in the indomethacin group was less than in the celecoxib group 24 hours and 48 hours after the first treatment. Blood tests confirmed that celecoxib interfered only with COX-2, while indomethacin also disrupted another COX protein. ...Imaging apparatus characterizes drops in 'dirty' laboratory environments
...e potential of thermal combustors for reducing the volume of liquid nuclear wastes for safe, long-term storage. Vitrification of radioactive waste into glassy solids is the most popular approach for disposal. By spraying radioactive sludge into a high-temperature combustor, essentially all the water and ot...Penn study may explain cliche of 'hot-headed' men
...s' study measured the ratio of orbital to amygdala volume in a sample of 116 right-handed, healthy adults yo...that the women's brains had a significantly higher volume of orbital frontal cortex in proportion to amygdala volume than did the brains of the men. "Because...... nitrate. This is in part due to the fact that the volume of water in the IJsselmeer has decreased since the closing off of the Markermeer. The measurements in the Marsdiep reveal that in particular the quantity of nitrate and to a lesser extent the quantity of phosphate have increased. The Netherlands Inst...Biodegradable plastics go to compost heaps, not landfills
...able plastics, but as they gain acceptance and the volume increases, they will become less expensive, he says. For example, graphite fibers, commonly used as a reinforcement in space applications, cost over $180 a pound when first developed. Today they are less than $10 a pound....New initiative will assess disease control priorities in developing countries
...ries to determine national priorities; the second volume of Disease Control Priorities in Developing Countries, which will be available in print and online in 2005. "This project will assist developing-country leaders as they systematically examine their own country's health conditions, including endemic ...Scientists confirm age of the oldest meteorite collision on Earth
...id, noting that, if the Archean ocean had the same volume of water as today, it would have been about 2 miles (3.3 kilometers) deep. "It would have taken only a second or two for a meteor that's 20 kilometers in diameter to pass through the ocean and impact the rock beneath," Lowe said. "That would genera...Flare-ups of chronic lung disease associated with specific bacterial strains, UB researchers find
...ticular strain within a bacterial species, not the volume of bacteria in general, that is associated with a COPD flare-up. This observation is a change in the way physicians have viewed the role of bacteria in COPD, Murphy noted. The three major pathogens implicated in causing exacerbations were H. influenz...New threat to commercial fishing
... species. Their findings, published in the latest volume of the Proceedings of the National Academy of Sciences, shout a warning that could force a rethink to current fisheries management and the research focus into sustainable fishing. Dr Greg Adcock analysed the DNA found in scales preserved from two pop...Physical map of mouse genome now available
... their correct order within each volume, with each volume being a chromosome. Furthermore, the DNA-sequence information used to compile the physical map was gathered differently from the information used to compile the draft sequence. Because the physical map comes from a separate source of genetic informa...Genes, maltreatment, and the cycle of violence
...ss or behavioral problems. For example, an entire volume of Schizophrenia Research (51, 2002) was devoted to genetic susceptibility to schizophrenia and the ongoing research programs to prevent its manifestation through the protracted use of psychotropic medications in as-of-yet undiagnosed teens. Of cour...Case Western Reserve University researchers developing new treatment for cardiovascular disease
...they are easily modified, they encapsulate a large volume for carrying therapeutic drug agents and we can vary their composition." Marchant is developing the liposomes to target injured arteries with the help of a $1.4 million grant from the National Heart, Lung and Blood Institute of the National Institute...Potential of regenerative medicine explored
...ntrol animals that had been injected with the same volume of saline solution were observed for comparison. While 40 percent of control animals died due to extremely low oxygen concentrations, all animals injected with the polymer solution survived. The use of DRPs increases oxygen delivery to tissue and org...Treating bacterial infections can help asthmatics
...uld exhale in one second, called forced expiratory volume in one second or FEV1. Twenty-six of the patients then took 500 milligrams of the antibiotic clarithromycin twice a day for six weeks while continuing their standard asthma medications. Twenty-six other asthma patients continued their standard asthm......at a specific rate, so that exactly the prescribed volume of medication is released into the bloodstream each day for up to a year. About the size of a quarter, the device is held in place under the skin with a single surgical stitch. According to Siegel, the implantation procedure (and removal procedure)...