Tag: "compared" at biology news

Abnormal chromosomes forecast leukemia relapse

...mosomes at complete remission. These patients were compared to 15 others who had abnormal chromosomes at both diagnosis and at complete remission. The results showed that patients with abnormal chromosomes at remission had a significantly shorter survival. They were twice as likely to relapse and die. Based o...

Study probes ecosystem of tree holes

...aid most studies of this sort look at two factors, compared with the three he and Chase studied. "Our results show that if you change any one of the three factors, you alter the face of the community," Kneitel said. "We found that we had a group of species that were good competitors, another that is ...

Ecosystem bounces back from hurricanes

...system-level impacts of two hurricane seasons were compared several years after the storms in the largest lagoonal estuary in the United States, the Albemarle-Pamlico Estuarine System. A segmented linear regression flow model was developed to compare mass-water transport and nutrient loadings to a major arter...

Drunken worms reveal a genetic basis of alcohol response

...e from England and one from Hawaii to alcohol and compared how they showed "acute tolerance" when first exposed to ethanol. The researchers used alcohol concentrations comparable to those that cause intoxication in humans. The researchers measured the worms' responses by how much slower their movement...

Alzheimer's may leave some forms of memory intact

...r and Cindy Lustig, also at Washington University, compared implicit memory capabilities in young adults, healthy older adults and those in the early stages of Alzheimer's disease.Buckner said that although researchers have used behavioral studies to distinguish implicit memory from the explicit memory used t...

Nature's ambush: pregnancy more likely from single unprotected intercourse than believed

...e a week). During the six fertile days it was 0.34 compared with 0.27 for the rest of the month an increase of 24%. Intercourse peaked just before and on the day of ovulation yet the women had no reason to modify the timing in relation to their fertile cycle. Prof. Wilcox said there were at least three poss...

Need sex? It's probably something about stress

...), Volvox colonies had twice as many oxidants when compared with unheated colonies. "This paper shows that sex is a response to oxidants," she said. "Sex evolved as a way to deal with stress and its consequences -- DNA-damaging oxidants." ...

Lowly weeds may hold promise for curing host of common health woes

...elds had been used medicinally by Native Americans compared with only 12 of those they gathered from the forest, he said. "The realization that medicinal plants are readily available in a living pharmacy right outside the door and along the sides of trails rather than deep in the forest could lead government...

First ever standards linking climate change, biodiversity and poverty seek global peer review

...g system will also enable CCB-rated projects to be compared with one another. The scoring system will look at several factors in the three integrated categories: Climate Change: The climate standards identify a variety of factors to quantify the amount of carbon emissions reduced or absorbed by land base...

Choice of food helps hungry caterpillar

...ent, H. subflexa has a very low level of parasites compared with other caterpillars. By adapting to a fruit that no other caterpillar wants, H. subflexa has found a niche where life is good. An uncontested food supply, a way to eat the fruit without calling up the plant's defenses and immunity ...

UF researcher: New low-carb potato to debut in January

...he fact that it has 30 percent fewer carbohydrates compared to a standard Russet baking potato," said Chad Hut... new potato contain about 13 grams of carbohydrate compared to around 19 grams in the same size serving of a Russet Burbank potato. "Althou...

Synthetic hormone used in contraceptives and HRT produces negative effects in monkey studies

...kes and CBN post-doctoral fellow Karen Pazol, PhD, compared aggression, anxiety and sexual behavior in six fem...when they received the estrogen/MPA combination as compared to when they received the estrogen only or the estrogen/progesterone combination. Dr. Pazol also not...

Obesity and hypertension: Two epidemics or one?

...vascular resistance is similar or reduced in obese compared with non-obese individuals. There is some eviden...of cardiac output and higher peripheral resistance compared with individuals with lower body or subcutaneous obesity. 3. Organ damage can result from obesity ...

CSIRO research in greatest biotech show on earth

... world. In addition our R&D is very cost effective compared to most other places." Fifty two exhibitors and more than three hundred people will represent Australia under the Biotechology Australia banner, creating one of the largest industry delegations to ever leave the country. And they should receive plent...

Gene therapy tested to protect bone marrow during chemotherapy

... levels of survival advantage [more than 500 fold] compared to normal stem cells not carrying the gene. Based on those preclinical animal results, they have begun this clinical trial in patients with advanced cancer. Blood stem cells are collected from patients and exposed to a retrovirus containing t...

Researchers identify two potential protein targets for new drug therapies for pancreatic cancer

...wever, the selective overexpression of FAP and FAK compared to normal pancreas in and immediately adjacent to tumor suggests that these proteins are attractive novel therapeutic targets for pancreatic cancer."Cohen added that a number of animal models have been developed to study the effects of FAP on tumor g...

When combining new oral anti-cancer agents with standard chemotherapy, timing may be crucial

...inib. Recently, several large clinical trials have compared standard chemotherapy alone to standard chemotherapy plus an oral EGFR inhibitor like erlotinib in the treatment of non-small cell lung cancer. Little if any benefit was found from the addition of an EGFR inhibitor in these trials, in which the EGFR ...

Lung cancer patients in Japan, United States react differently to the same chemotherapy regimen

...late from one population to another." The analysis compared results from two phase III clinical trials designed to evaluate the relative effectiveness of various treatments for patients with advanced non-small cell lung cancer. One trial was conducted in the United States, the other in Japan. The two trials w...

Maybe not so sweet, after all

...lating levels of insulin and leptin were decreased compared to when the women ate the same meals accompanied by the glucose-sweetened beverage. Lower levels of insulin and leptin, hormones that convey information to the brain about the body's energy status and fat stores, have been linked in other studies to...

Continents played key role in collapse and regeneration of Earth's early greenhouse, geologists say

... climate change caused by humans in recent history compared to that caused by natural processes over the ages. ''We're disturbing the system at rates that greatly exceed those that have characterized climatic changes in the past,'' Lowe said. ''Nonetheless, virtually all of the experiments, v...

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