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Scientists identify important mechanism that affects the aging process 
Scientists at Joslin Diabetes Center have identified a key mechanism of action for the TOR (target of rapamycin) protein kinase, a critical regulator of cell growth which plays a major role in illness and aging. This finding not only illuminates the physiology of aging but could lead to new treatments to increase lifespan and control age-related conditions, such as cancer,
Scientists at Joslin Diabetes Center have identified a key mechanism of action for the TOR (target of rapamycin) protein kinase, a critical regulator of cell growth which plays a major role in illness and aging. This finding not only illuminates the physiology of aging but could lead to new treatments to increase lifespan and control age-related conditions, such as cancer,
Molecular Biology
Source: Joslin Diabetes Center
Posted on: Wednesday, May 02, 2012, 10:45am
Rating: | Views: 1148 | Comments: 0
Source: Joslin Diabetes Center
Posted on: Wednesday, May 02, 2012, 10:45am
Rating: | Views: 1148 | Comments: 0
Cells in blood vessel found to cling more tightly in regions of rapid flow
Clogging of pipes leading to the heart is the planet's number one killer. Surgeons can act as medical plumbers to repair some blockages, but we don't fully understand how this living organ deteriorates or repairs itself over time.
Clogging of pipes leading to the heart is the planet's number one killer. Surgeons can act as medical plumbers to repair some blockages, but we don't fully understand how this living organ deteriorates or repairs itself over time.
Physiology
Source: University of Washington
Posted on: Friday, Apr 27, 2012, 5:00pm
Rating: | Views: 1247 | Comments: 0
Source: University of Washington
Posted on: Friday, Apr 27, 2012, 5:00pm
Rating: | Views: 1247 | Comments: 0
Building muscle without heavy weights
Weight training at a lower intensity but with more repetitions may be as effective for building muscle as lifting heavy weights says a new opinion piece in Applied Physiology, Nutrition, and Metabolism.
Weight training at a lower intensity but with more repetitions may be as effective for building muscle as lifting heavy weights says a new opinion piece in Applied Physiology, Nutrition, and Metabolism.
Health
Source: Canadian Science Publishing (NRC Research Press)
Posted on: Friday, Apr 27, 2012, 10:00am
Rating: | Views: 1545 | Comments: 0
Source: Canadian Science Publishing (NRC Research Press)
Posted on: Friday, Apr 27, 2012, 10:00am
Rating: | Views: 1545 | Comments: 0
Do urban 'heat islands' hint at trees of future?
City streets can be mean, but somewhere near Brooklyn, a tree grows far better than its country cousins, due to chronically elevated city heat levels, says a new study. The study, just published in the journal Tree Physiology, shows that common native red oak seedlings grow as much as eight times faster in New York's Central Park than in more rural, cooler settings in the Hudson Valley and
City streets can be mean, but somewhere near Brooklyn, a tree grows far better than its country cousins, due to chronically elevated city heat levels, says a new study. The study, just published in the journal Tree Physiology, shows that common native red oak seedlings grow as much as eight times faster in New York's Central Park than in more rural, cooler settings in the Hudson Valley and
Environment
Source: The Earth Institute at Columbia University
Posted on: Wednesday, Apr 25, 2012, 1:15pm
Rating: | Views: 1135 | Comments: 0
Source: The Earth Institute at Columbia University
Posted on: Wednesday, Apr 25, 2012, 1:15pm
Rating: | Views: 1135 | Comments: 0
A slice of life in finely furled paper
Artist Lisa Nilsson transforms disgust into awe with the intricately folded coloured paper she uses to recreate cross sections of human anatomy
Artist Lisa Nilsson transforms disgust into awe with the intricately folded coloured paper she uses to recreate cross sections of human anatomy
Physiology
Source: New Scientist
Posted on: Wednesday, Apr 18, 2012, 8:58am
Rating: | Views: 1171 | Comments: 0
Source: New Scientist
Posted on: Wednesday, Apr 18, 2012, 8:58am
Rating: | Views: 1171 | Comments: 0
Warmth 'gives babies pain relief'
Keeping a baby nice and warm while giving injections may offer better pain relief than the techniques doctors currently use.
Keeping a baby nice and warm while giving injections may offer better pain relief than the techniques doctors currently use.
Physiology
Source: BBC News
Posted on: Wednesday, Apr 11, 2012, 8:17am
Rating: | Views: 1148 | Comments: 0
Source: BBC News
Posted on: Wednesday, Apr 11, 2012, 8:17am
Rating: | Views: 1148 | Comments: 0
Coordinating the circadian clock: Molecular pair controls time-keeping and fat metabolism
The 24-hour internal clock controls many aspects of human behavior and physiology, including sleep, blood pressure, and metabolism. Disruption in circadian rhythms leads to increased incidence of many diseases, including metabolic disease and cancer. Each cell of the body has its own internal timing mechanism, which is controlled by proteins that keep one another in check.
The 24-hour internal clock controls many aspects of human behavior and physiology, including sleep, blood pressure, and metabolism. Disruption in circadian rhythms leads to increased incidence of many diseases, including metabolic disease and cancer. Each cell of the body has its own internal timing mechanism, which is controlled by proteins that keep one another in check.
Molecular Biology
Source: University of Pennsylvania School of Medicine
Posted on: Friday, Apr 06, 2012, 1:45pm
Rating: | Views: 1470 | Comments: 0
Source: University of Pennsylvania School of Medicine
Posted on: Friday, Apr 06, 2012, 1:45pm
Rating: | Views: 1470 | Comments: 0
Women cannot rewind the 'biological clock'
Many women do not fully appreciate the consequences of delaying motherhood, and expect that assisted reproductive technologies can reverse their aged ovarian function, Yale researchers reported in a study published in a recent issue of Fertility and Sterility.
Many women do not fully appreciate the consequences of delaying motherhood, and expect that assisted reproductive technologies can reverse their aged ovarian function, Yale researchers reported in a study published in a recent issue of Fertility and Sterility.
Physiology
Source: Yale University
Posted on: Friday, Apr 06, 2012, 12:45pm
Rating: | Views: 1443 | Comments: 1
Source: Yale University
Posted on: Friday, Apr 06, 2012, 12:45pm
Rating: | Views: 1443 | Comments: 1
Exploring the antidepressant effects of testosterone
Testosterone, the primary male sex hormone, appears to have antidepressant properties, but the exact mechanisms underlying its effects have remained unclear. Nicole Carrier and Mohamed Kabbaj, scientists at Florida State University, are actively working to elucidate these mechanisms.
Testosterone, the primary male sex hormone, appears to have antidepressant properties, but the exact mechanisms underlying its effects have remained unclear. Nicole Carrier and Mohamed Kabbaj, scientists at Florida State University, are actively working to elucidate these mechanisms.
Physiology
Source: Elsevier
Posted on: Monday, Apr 02, 2012, 4:15pm
Rating: | Views: 1151 | Comments: 0
Source: Elsevier
Posted on: Monday, Apr 02, 2012, 4:15pm
Rating: | Views: 1151 | Comments: 0
Testosterone low, but responsive to competition, in Amazonian tribe
It's a rough life for the Tsimane, an isolated indigenous group in Bolivia. They make a living by hunting and foraging in forests, fishing in streams and clearing land by hand to grow crops. Their rugged lifestyle might imply that Tsimane men have elevated testosterone to maintain the physical activity required to survive each day.
It's a rough life for the Tsimane, an isolated indigenous group in Bolivia. They make a living by hunting and foraging in forests, fishing in streams and clearing land by hand to grow crops. Their rugged lifestyle might imply that Tsimane men have elevated testosterone to maintain the physical activity required to survive each day.
Physiology
Source: University of Washington
Posted on: Wednesday, Mar 28, 2012, 11:45am
Rating: | Views: 1141 | Comments: 0
Source: University of Washington
Posted on: Wednesday, Mar 28, 2012, 11:45am
Rating: | Views: 1141 | Comments: 0
Anxiety boosts sense of smell
Anxious people have a heightened sense of smell when it comes to sniffing out a threat, according to a new study by Elizabeth Krusemark and Wen Li from the University of Wisconsin-Madison in the US. Their work¹ is published online in Springer's journal Chemosensory Perception. The study is part of a special issue² of this journal on neuroimaging the chemical senses.
Anxious people have a heightened sense of smell when it comes to sniffing out a threat, according to a new study by Elizabeth Krusemark and Wen Li from the University of Wisconsin-Madison in the US. Their work¹ is published online in Springer's journal Chemosensory Perception. The study is part of a special issue² of this journal on neuroimaging the chemical senses.
Physiology
Source: Springer
Posted on: Friday, Mar 23, 2012, 8:30am
Rating: | Views: 1347 | Comments: 0
Source: Springer
Posted on: Friday, Mar 23, 2012, 8:30am
Rating: | Views: 1347 | Comments: 0
Specialization for underwater hearing by the tympanic middle ear of the turtle
A group of biologists from Denmark and the US led by Jakob Christensen-Dalsgaard, University of Southern Denmark, and Catherine Carr, University of Maryland, have shown that the turtle ear is specialized for underwater hearing. The new discovery is published in Proceedings of the Royal Society B March 21st , Special features of the turtle ear – a large, air-filled middle ear and a movable t
A group of biologists from Denmark and the US led by Jakob Christensen-Dalsgaard, University of Southern Denmark, and Catherine Carr, University of Maryland, have shown that the turtle ear is specialized for underwater hearing. The new discovery is published in Proceedings of the Royal Society B March 21st , Special features of the turtle ear – a large, air-filled middle ear and a movable t
Physiology
Source: University of Southern Denmark
Posted on: Wednesday, Mar 21, 2012, 5:00pm
Rating: | Views: 1301 | Comments: 0
Source: University of Southern Denmark
Posted on: Wednesday, Mar 21, 2012, 5:00pm
Rating: | Views: 1301 | Comments: 0
Prolonged space travel causes brain and eye abnormalities in astronauts
Magnetic resonance imaging (MRI) of the eyes and brains of 27 astronauts who have spent prolonged periods of time in space revealed optical abnormalities similar to those that can occur in intracranial hypertension of unknown cause, a potentially serious condition in which pressure builds within the skull. A retrospective analysis of the MRI data appears online in the journal
Magnetic resonance imaging (MRI) of the eyes and brains of 27 astronauts who have spent prolonged periods of time in space revealed optical abnormalities similar to those that can occur in intracranial hypertension of unknown cause, a potentially serious condition in which pressure builds within the skull. A retrospective analysis of the MRI data appears online in the journal
Physiology
Source: Radiological Society of North America
Posted on: Tuesday, Mar 13, 2012, 10:45am
Rating: | Views: 1269 | Comments: 0
Source: Radiological Society of North America
Posted on: Tuesday, Mar 13, 2012, 10:45am
Rating: | Views: 1269 | Comments: 0
'2 steps' ahead in cystic fibrosis research
A recent study led by Gergely Lukacs, a professor at McGill University's Faculty of Medicine, Department of Physiology, and published in the January issue of Cell, has shown that restoring normal function to the mutant gene product responsible for cystic fibrosis (CF) requires correcting two distinct structural defects. This finding could point to more effective therapeutic strategies for C
A recent study led by Gergely Lukacs, a professor at McGill University's Faculty of Medicine, Department of Physiology, and published in the January issue of Cell, has shown that restoring normal function to the mutant gene product responsible for cystic fibrosis (CF) requires correcting two distinct structural defects. This finding could point to more effective therapeutic strategies for C
Molecular Biology
Source: McGill University
Posted on: Monday, Mar 12, 2012, 12:45pm
Rating: | Views: 1272 | Comments: 0
Source: McGill University
Posted on: Monday, Mar 12, 2012, 12:45pm
Rating: | Views: 1272 | Comments: 0
Daylight saving time shift is toughest for night owls
Congress mandates daylight saving time. But the time change disrupts the body's circadian clock, which is more in tune with Mother Nature than with Uncle Sam.
Congress mandates daylight saving time. But the time change disrupts the body's circadian clock, which is more in tune with Mother Nature than with Uncle Sam.
Physiology
Source: MSNBC
Posted on: Wednesday, Mar 07, 2012, 10:49am
Rating: | Views: 1215 | Comments: 0
Source: MSNBC
Posted on: Wednesday, Mar 07, 2012, 10:49am
Rating: | Views: 1215 | Comments: 0
For fish, fear smells like sugar
When one fish gets injured, the rest of the school takes off in fear, tipped off by a mysterious substance known as "Schreckstoff" (meaning "scary stuff" in German). Now, researchers reporting online on February 23 in the Cell Press journal Current Biology have figured out what that scary stuff is really made of.
When one fish gets injured, the rest of the school takes off in fear, tipped off by a mysterious substance known as "Schreckstoff" (meaning "scary stuff" in German). Now, researchers reporting online on February 23 in the Cell Press journal Current Biology have figured out what that scary stuff is really made of.
Physiology
Source: Cell Press
Posted on: Friday, Feb 24, 2012, 10:45am
Rating: | Views: 1352 | Comments: 0
Source: Cell Press
Posted on: Friday, Feb 24, 2012, 10:45am
Rating: | Views: 1352 | Comments: 0
The heart beats to the rhythm of a circadian clock
Sudden cardiac death –catastrophic and unexpected fatal heart stoppage – is more likely to occur shortly after waking in the morning and in the late night.
Sudden cardiac death –catastrophic and unexpected fatal heart stoppage – is more likely to occur shortly after waking in the morning and in the late night.
Physiology
Source: Baylor College of Medicine
Posted on: Thursday, Feb 23, 2012, 10:45am
Rating: | Views: 1551 | Comments: 0
Source: Baylor College of Medicine
Posted on: Thursday, Feb 23, 2012, 10:45am
Rating: | Views: 1551 | Comments: 0
Detailed picture of how myoV 'walks' along actin tracks
A new study in the Journal of General Physiology uses state-of-the-art fluorescence microscopy to provide a striking 3-D picture of how class V myosins (myoV) "walk" along their actin track.
A new study in the Journal of General Physiology uses state-of-the-art fluorescence microscopy to provide a striking 3-D picture of how class V myosins (myoV) "walk" along their actin track.
Molecular Biology
Source: Rockefeller University Press
Posted on: Tuesday, Jan 31, 2012, 8:00am
Rating: | Views: 1148 | Comments: 0
Source: Rockefeller University Press
Posted on: Tuesday, Jan 31, 2012, 8:00am
Rating: | Views: 1148 | Comments: 0
Foot and ankle structure differs between sprinters and non-sprinters
The skeletal structure of the foot and ankle differs significantly between human sprinters and non-sprinters, according to Penn State researchers. Their findings not only help explain why some people are faster runners than others, but also may be useful in helping people who have difficulty walking, such as older adults and children with cerebral palsy.
The skeletal structure of the foot and ankle differs significantly between human sprinters and non-sprinters, according to Penn State researchers. Their findings not only help explain why some people are faster runners than others, but also may be useful in helping people who have difficulty walking, such as older adults and children with cerebral palsy.
Physiology
Source: Penn State
Posted on: Wednesday, Jan 25, 2012, 8:15am
Rating: | Views: 1405 | Comments: 0
Source: Penn State
Posted on: Wednesday, Jan 25, 2012, 8:15am
Rating: | Views: 1405 | Comments: 0
ScienceShot: Brightness Is in the Eye of the Beholder
Incandescent illusions cause the pupils to contract
Incandescent illusions cause the pupils to contract
Physiology
Source: Science
Posted on: Tuesday, Jan 24, 2012, 8:19am
Rating: | Views: 1087 | Comments: 0
Source: Science
Posted on: Tuesday, Jan 24, 2012, 8:19am
Rating: | Views: 1087 | Comments: 0
Women report feeling pain more intensely than men
Women report more-intense pain than men in virtually every disease category, according to Stanford University School of Medicine investigators who mined a huge collection of electronic medical records to establish the broad gender difference to a high level of statistical significance.
Women report more-intense pain than men in virtually every disease category, according to Stanford University School of Medicine investigators who mined a huge collection of electronic medical records to establish the broad gender difference to a high level of statistical significance.
Physiology
Source: Stanford University Medical Center
Posted on: Monday, Jan 23, 2012, 5:00pm
Rating: | Views: 1151 | Comments: 0
Source: Stanford University Medical Center
Posted on: Monday, Jan 23, 2012, 5:00pm
Rating: | Views: 1151 | Comments: 0
Rare kidney disease shows how salt, potassium levels are moderated
High blood pressure (hypertension) is a principal risk factor for heart disease and affects 1 billion people. At least half of them are estimated to be salt-sensitive; their blood pressure rises with sodium intake. New research released today [Jan. 22] shows important aspects of how sodium and potassium are regulated in the kidney.
High blood pressure (hypertension) is a principal risk factor for heart disease and affects 1 billion people. At least half of them are estimated to be salt-sensitive; their blood pressure rises with sodium intake. New research released today [Jan. 22] shows important aspects of how sodium and potassium are regulated in the kidney.
Physiology
Source: University of Texas Health Science Center at San Antonio
Posted on: Monday, Jan 23, 2012, 2:15pm
Rating: | Views: 1541 | Comments: 0
Source: University of Texas Health Science Center at San Antonio
Posted on: Monday, Jan 23, 2012, 2:15pm
Rating: | Views: 1541 | Comments: 0
Researchers help solve questions about Ethiopians' high-altitude adaptations
Over many generations, people living in the high-altitude regions of the Andes or on the Tibetan Plateau have adapted to life in low-oxygen conditions. Living with such a distinct and powerful selective pressure has made these populations a textbook example of evolution in action, but exactly how their genes convey a survival advantage remains an open question. Now, a University
Over many generations, people living in the high-altitude regions of the Andes or on the Tibetan Plateau have adapted to life in low-oxygen conditions. Living with such a distinct and powerful selective pressure has made these populations a textbook example of evolution in action, but exactly how their genes convey a survival advantage remains an open question. Now, a University
Physiology
Source: University of Pennsylvania
Posted on: Monday, Jan 23, 2012, 8:30am
Rating: | Views: 1193 | Comments: 0
Source: University of Pennsylvania
Posted on: Monday, Jan 23, 2012, 8:30am
Rating: | Views: 1193 | Comments: 0
Receptor for tasting fat identified in humans
Why do we like fatty foods so much? We can blame our taste buds.
Why do we like fatty foods so much? We can blame our taste buds.
Physiology
Source: Washington University School of Medicine
Posted on: Friday, Jan 13, 2012, 12:00pm
Rating: | Views: 1306 | Comments: 0
Source: Washington University School of Medicine
Posted on: Friday, Jan 13, 2012, 12:00pm
Rating: | Views: 1306 | Comments: 0
Whiff of 'love hormone' helps monkeys show a little kindness
Oxytocin, the "love hormone" that builds mother-baby bonds and may help us feel more connected toward one another, can also make surly monkeys treat each other a little more kindly.
Oxytocin, the "love hormone" that builds mother-baby bonds and may help us feel more connected toward one another, can also make surly monkeys treat each other a little more kindly.
Physiology
Source: Duke University
Posted on: Thursday, Jan 05, 2012, 2:30pm
Rating: | Views: 1336 | Comments: 0
Source: Duke University
Posted on: Thursday, Jan 05, 2012, 2:30pm
Rating: | Views: 1336 | Comments: 0
Video: Magnetically-levitated flies offer clues to future of life in space
Using powerful magnets to levitate fruit flies can provide vital clues to how biological organisms are affected by weightless conditions in space, researchers at The University of Nottingham say.
Using powerful magnets to levitate fruit flies can provide vital clues to how biological organisms are affected by weightless conditions in space, researchers at The University of Nottingham say.
Physiology
Source: University of Nottingham
Posted on: Wednesday, Jan 04, 2012, 2:30pm
Rating: | Views: 1264 | Comments: 0
Source: University of Nottingham
Posted on: Wednesday, Jan 04, 2012, 2:30pm
Rating: | Views: 1264 | Comments: 0
FYI: What's the Point of Nose Hair?
To strain out the nasty stuff we breathe in. It’s like an air filter in your house, says Justin Turner, an otolaryngologist (short, sort of, for otorhinolaryngologist, Greek for ear (oto), nose (rhino), and throat (laryng)) at Stanford University. Nose hairs trap dirt, viruses, bacteria and toxins until we blow them out, sneeze, or swallow.
To strain out the nasty stuff we breathe in. It’s like an air filter in your house, says Justin Turner, an otolaryngologist (short, sort of, for otorhinolaryngologist, Greek for ear (oto), nose (rhino), and throat (laryng)) at Stanford University. Nose hairs trap dirt, viruses, bacteria and toxins until we blow them out, sneeze, or swallow.
Physiology
Source: POPSCI
Posted on: Wednesday, Jan 04, 2012, 7:50am
Rating: | Views: 1181 | Comments: 0
Source: POPSCI
Posted on: Wednesday, Jan 04, 2012, 7:50am
Rating: | Views: 1181 | Comments: 0
Deer antlers inspire a new theory on osteoporosis
The loss of manganese could mean that calcium does not stick to bones and could cause osteoporosis. This is the new theory put forward by researchers at the University of Castilla-La Mancha (UCLM) in Spain after studying deer antlers. The hypothesis published this month in the Frontiers of Bioscience journal still needs to be confirmed by the scientific community.
The loss of manganese could mean that calcium does not stick to bones and could cause osteoporosis. This is the new theory put forward by researchers at the University of Castilla-La Mancha (UCLM) in Spain after studying deer antlers. The hypothesis published this month in the Frontiers of Bioscience journal still needs to be confirmed by the scientific community.
Physiology
Source: FECYT - Spanish Foundation for Science and Technology
Posted on: Tuesday, Jan 03, 2012, 12:30pm
Rating: | Views: 1448 | Comments: 0
Source: FECYT - Spanish Foundation for Science and Technology
Posted on: Tuesday, Jan 03, 2012, 12:30pm
Rating: | Views: 1448 | Comments: 0
How snakes hear without ears
When a rattlesnake shakes its tail, does it hear the rattling? Scientists have long struggled to understand how snakes, which lack external ears, sense sounds. Now, a new study shows that sound waves cause vibrations in a snake’s skull that are then “heard” by the inner ear.
When a rattlesnake shakes its tail, does it hear the rattling? Scientists have long struggled to understand how snakes, which lack external ears, sense sounds. Now, a new study shows that sound waves cause vibrations in a snake’s skull that are then “heard” by the inner ear.
Physiology
Source: Washington Post
Posted on: Tuesday, Jan 03, 2012, 7:50am
Rating: | Views: 1061 | Comments: 0
Source: Washington Post
Posted on: Tuesday, Jan 03, 2012, 7:50am
Rating: | Views: 1061 | Comments: 0
Forget the Nose, 'Rudolph' Has Keen Eyes
Ultraviolet vision may explain how Santa's reindeer see so well in snowy landscapes.
Ultraviolet vision may explain how Santa's reindeer see so well in snowy landscapes.
Physiology
Source: Discovery Channel News
Posted on: Friday, Dec 23, 2011, 7:53am
Rating: | Views: 1204 | Comments: 0
Source: Discovery Channel News
Posted on: Friday, Dec 23, 2011, 7:53am
Rating: | Views: 1204 | Comments: 0
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