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Tag: "earliest" at biology news

Researchers track how spores break out of dormant state

...velopment of new countermeasures that identify the earliest stages of a wide range of spore mediated diseases, including botulism, gas gangrene and pulmonary anthrax,” said Alexander Malkin, senior author from LLNL’s Biosciences and Biotechnology Division. “But it’s also important to gain fundamental insights...

In nature, proteins sweep up nanoparticles

...eir discovery could also refine the search for the earliest indications of life on Earth, as well as help determine whether planets like Mars once harbored life. Scientists involved in this research hunt for biosignatures, which are the telltale calling cards left behind by microbes that may have lived eons a...

Gene therapy study shows safety and statistically significant improvement in Parkinson's disease

... treatment. Moreover, the absence of change at the earliest time point following treatment suggests that the improvement was not likely due to the surgical lesioning of the targeted brain region, as surgical approaches typically give rise to immediate, short-lasting benefit around the time of surgery, while p...

Spud origin controversy solved

... genetic markers to prove that the remnants of the earliest known landraces of the European potato are of Andean and Chilean origin. They report their findings in the May-June 2007 issue of Crop Science. “European potatoes,?the cultivated potatoes first appearing in Europe and later spreading worldwide, wer...

Study of protein folds offers insight into metabolic evolution

... be omnipresent, and nine of those occurred in the earliest branches of the newly constructed tree. "These ...an RNA world in which RNA molecules were among the earliest catalysts of life. This idea is based in part on the observation that RNA still retains many of its ...

Researchers identify ovarian cancer biomarkers

... 95 percent survival rate for cancers found at the earliest stage and 20 percent survival among patients diagnosed with advanced disease. "All the things we could hope for are present with this approach: It has potential for diagnosis, imaging, treatment and prognosis. It needs more work and much more conf...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

...hat efforts to protect them led to the some of the earliest legislative efforts at biological conservation. Leeches are still afforded protection by the World Conservation Union (IUCN) and are regulated by the Convention on International Trade in Endangered Species (CITES), the Berne Convention, and the Eu...

Cold sore virus might play role in Alzheimer's disease

...n of the synapse. Damage to synapses is one of the earliest signs of Alzheimer's disease. Another possibili... published a study that showed inflammation is the earliest change that could be detected in a brain affected by Alzheimer's disease, before any of the hallmark...

Study shows hope for early diagnosis of Alzheimer's

...nt and improved quality of life, for people at the earliest stages of the disease. According to the Alzheim...rexel psychology professor. “Individuals in the earliest stage of Alzheimer’s disease are often not aware of their progressing memory loss, and family member...

First-degree fetal heart block may be reversible

... confirmed in this study, close monitoring and the earliest possible marker is necessary," said Copel, who plans trials of other possible treatments. "Advanced block and permanent heart damage can occur within one week of a normal echocardiogram, even a weekly evaluation may not be sufficient to detect early ...

Vasectomy may put men at risk for type of dementia

...a (FTD,) 37 percent had undergone a vasectomy. The earliest symptoms of FTD are personality changes, lack of judgment and bizarre behavior. As in PPA, FTD usually starts at an earlier age, in the 40s and 50s. One of Weintraub's patients with FTD was eating lunch in a restaurant with his family and excused ...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

...‘abominable mystery??by revealing that some of the earliest evolutionary branches were more diverse then we once thought." ...

Paleontologists discover new mammal from Mesozoic Era

...s have impacted the morphological evolution of the earliest mammals," said Luo....

40,000-year-old skull shows both modern human and Neandertal traits

... the two fossils were the same age. These are the earliest modern human remains so far found in Europe and represent our best evidence of what the modern humans who first dispersed into Europe looked like. By comparing it with other skulls, Professor Zilhao and colleagues found that Oase 2 had the same pr...

Mystery of fossilized trees is solved

...al research team has found evidence of the Earth's earliest forest trees, dating back 385 million years. Upright stumps of fossilised trees were uncovered after a flash flood in Gilboa, upstate New York, more than a century ago. However, until now, no-one has known what the entire trees looked like. Two y...

Making mice with enhanced color vision

...ns suggests that these knock-in mice mimic how our earliest primate ancestors acquired trichromatic vision, color vision based on three receptors. At some point in the past, random mutations created a variant of one receptor gene, located on the X chromosome, producing two different receptor types. Present-...

Study of planarians offers insight into germ cell development

...s, which show signs of germ cell initiation in the earliest stages of their embryonic development, planarians do not generally express nanos or produce germ cells until several days after hatching. This delayed initiation of germ cell growth is called inductive specification, and is common to mammals and a nu...

Chimpanzees found to use tools to hunt mammalian prey

...ale hominids played a role in the evolution of the earliest tool technology and suggests that this technology may have included tools for hunting. ...

New evidence of 'human' culture among primates

...ology is found in the archaeological record of the earliest humans, and as more evidence emerges, it is hoped the ancient ancestry of human behaviour will become clear. ...

Ladybugs may be cute, but watch out when they get near wine

Modern man"s earliest known close ancestor was significantly more apelik...-year-old skull belonging to Homo rudolfensis, the earliest member of the human genus, with a surprisingly small brain and distinctly protruding jaw, features c...

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