Tag: "plummeted" at biology news

Measles Deaths Worldwide Drop By Nearly 40% Over Five Years

...y the end of this year. Global measles deaths have plummeted by 39%, from 873 000 in 1999 to an estimated 530 000 in 2003. The largest reduction occurred in Africa, the region with the highest burden of the disease, where estimated measles deaths decreased by 46%. "Progress of this magnitude is remarkable. I...

Beyond genes: Lipid helps cell wall protein fold into proper shape

... The PE-lacking protein's amino acid transfer rate plummeted to nearly zero, falling 99 percent compared to the transfer rate in unaltered E. coli with PE. GabP is the third membrane protein that Dowhan and colleagues have shown to be affected by the presence of PE. The team is using the E. coli model to dis...

Depression model leaves mice with molecular scar

...ippocampus, a memory hub implicated in depression, plummeted three-fold and remained suppressed for weeks. However, chronic treatment with an antidepressant (the tricyclic imipramine) restored expression of the gene for brain derived neurotrophic factor (BDNF) to normal levels and reversed the social withdrawa...

UNH researcher restoring oyster reefs to Great Bay

...opulation in New Hampshire's Great Bay estuary has plummeted by 90 percent, due to the 1995 arrival of the oyster disease MSX. The previous century saw a slower but equally devastating demise of oysters from exuberant overharvesting. "We have seen local extinction on some reefs," says Ray Grizzle, research ass...

Asia's odd-ball antelope gets collared

...notorious dust storms. Today saiga numbers have plummeted by 95 percent from an estimated one million animals just 15 years ago, due to poaching for Chinese medicines and competition with livestock. In an effort to safeguard remaining populations, WCS, along with the Mongolian Academy of Sciences and suppo...

Farmed salmon could become an invasive species in forest streams

...o such a degree that prices for farmed salmon have plummeted and, there is concern that farmed fish may become the next invasive species. "Farmed fish escaping from marine net pens might become an invasive species in British Columbia, Washington or Alaska," says research fish biologist Peter Bisson. "Net pen...

Smoking rate has plummeted in New York City

New York City’s smoking rate has plummeted since a comprehensive program against smoking was launched in 2002, according to findings issued today in the national Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report (MMWR). The 2006 rate was nearly 20% lower than ...

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