Serotonin May Be Better Target For Attention Deficit Hyperactivity Disorder Treatment
...rmal mice negotiate in less than three minutes,the knockout mice became distracted-performing extraneous activ...pulses-anotherhallmark of ADHD. Surprisingly, the knockout mice were still calmed by Ritalin®,Dexedrine® and other stimulants even though they lacked t......on with NIEHS scientists,mice were produced with a knockout of the fertilin-beta gene. The investigatorswere ...who is anexpert in a key method used in developing knockout mice, that is, micegenetically altered to be unable to produce a specific protein. The absence ofth...... MedicalScience (TMI) reported results with a gene knockout mouse that establishes a keyrole for the enzyme Ca...found alterations than those observed in Caspase-3 knockout mice. BothCaspase-9 and Caspase-3 appear to be selectively active in neuronal tissuesduring developm...Researchers Identify A Protein Critical For T Cell Development And Activation
... for SLP-76 was eliminated, or "knocked out". The knockout mouse wasdeveloped by James Clements, Ph. D., in Koretzky's laboratory along with a teamled by Roger Williamson, M.D., UI professor of obstetrics and gynecology. "The most striking feature of the mouse is that there is a block in T celldevelopment le...Master Molecule Forms Brains In Frogs And Elbows In Mice
...he mice fare without it. In the case of the Noggin knockout mice, the answer is: not too well. In fact, mice missing the Noggin gene don't survive until birth. But analyzing the unborn embryos before they died turned up several interesting results. The researchers found that mice lacking the Noggin protein po...Researchers Identify Function Of Brain Receptor Subunit Linked To Memory, Stroke, Dementia
...neurological diseases." For Nakanishi, the knockout mouse holds promise as the first animalmodel for synaptic plasticity. Activation of the NMDA receptor determineswhether neuronal activity is worthy of memory. He plans to further study therole of NMDA receptors in synaptic plasticity and memory forma...Tiny Worm Reveals Workings Of Suspected Tumor Protein
...archers a cheap and simplealternative to a genetic knockout mouse. While establishing strains of knockoutmice takes months, the RNAi worm offspring can be analyzed a few days after theinjection, says Shi. The embryos amazed him. Normal C. elegans embryos develop for 14 hours,then they hatch. But Shi f...Scientists Invent Faster Gene Function Identification System
...strategy could be asuseful as the established gene knockout strategy to identify and elucidate genefunction, while being much more efficient," Wagner says. Until now, studies using ribozymes as the catalyst to stop proteinproduction have worked only in cells. Wagner's research is the first to work ina...Emory University Fragile X Group Receives NIH Program Grant
...eins similar to FMRP, and a new generation of FMR1 knockout mice in whichthey can closely control FMRP expression, both pre- and postnatally, throughdrug exposure. The investigators also will address fundamental questionsrelating to possible future therapeutic strategies. Stephen T. Warren, Ph.D., i...Jefferson Scientists Find Potential Deadly Effects Of Two Missing Cancer-Suppressor Genes
...herapies. The researchers found that male knockout mice died from cancer at an average of 273 days, which is perhaps two to three times as quickly as they might die with only one missing gene. They expected that. But they didn't expect to find that the combination of missing genes was let......umps dopamine out of the cell, Caron said. In the knockout mice with no dopamine transporters, amphetamines c...ts into Parkinson's disease The research with the knockout mice could also provide new insights intothe management of Parkinson's disease, said Caron. The mous...