G Protein News and Research

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Semen protein acts on the female brain to prompt ovulation

An international team of scientists led by Gregg Adams at the University of Saskatchewan has discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells.

21 Aug 2012

Parkinson’s disease with dementia falls into two pathologic subgroups

Patients with Parkinson’s disease who also have dementia fall into two main pathologic categories, characterized by neocortical synucleinopathy in isolation and neocortical synucleinopathy with amyloid beta deposition.

20 Aug 2012

Lack of certain gene occurs in almost 28% of breast cancers

More than one out of every four cases of breast cancer is associated with a specific, missing gene - a finding that could have significant implications for chemotherapy treatments, according a recent study by Cornell University researchers.

20 Aug 2012

Injectable controlled-release capsules against gum disease

Scientists are trying to open a new front in the battle against gum disease, the leading cause of tooth loss in adults and sometimes termed the most serious oral health problem of the 21st century. They described another treatment approach for the condition in a report here today at the 244th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society.

20 Aug 2012

PPR proteins recognise RNA targets via easy-to-understand code

The code determines the recognition of RNA molecules by a superfamily of RNA-binding proteins called pentatricopeptide repeat (PPR) proteins.

20 Aug 2012

Protein toxic to nerve cells in AD also contributes to memory loss

The underlying causes of Alzheimer's disease are not fully understood, but a good deal of evidence points to the accumulation of β-amyloid, a protein that's toxic to nerve cells. β-amyloid is formed by the activity of several enzymes, including one called BACE1. Most Alzheimer's disease patients have elevated levels of BACE1, which in turn leads to more brain-damaging β-amyloid protein.

20 Aug 2012

Resveratrol might help improve mobility and prevent life-threatening falls among older people

In a stride toward better health in later life, scientists reported today that resveratrol, the so-called "miracle molecule" found in red wine, might help improve mobility and prevent life-threatening falls among older people.

20 Aug 2012

New birth-control strategy for mosquitoes can combat malaria

Using information about the unique mating practices of the male malaria mosquito ― which, unlike any other insect, inserts a plug to seal its sperm inside the female ― scientists are zeroing in on a birth-control drug for Anopheles mosquitoes, deadly carriers of the disease that threatens 3 billion people, has infected more than 215 million and kills 655,000 annually.

20 Aug 2012

Scientists demonstrate automated worm sorter for biological research

Research into the genetic factors behind certain disease mechanisms, illness progression and response to new drugs is frequently carried out using tiny multi-cellular animals such as nematodes, fruit flies or zebra fish.

20 Aug 2012

UCP2 uncoupling protein occurs mainly in cells of the immune system

When uncoupling proteins are active, mitochondria produce heat instead of ATP. This may be useful under certain circumstances, such as when an animal is hibernating. But non-hibernating animals also have them. Particularly poorly understood is the uncoupling protein UCP2. Elena Pohl and colleagues at the University of Veterinary Medicine, Vienna, show that the protein occurs mainly in cells of the immune system.

18 Aug 2012

Computer simulations shed light on dynamic structure of major target for anti-cancer drugs

Using advanced computer simulations, University of Utah College of Pharmacy researchers have produced moving images of a protein complex that is an important target for anti-cancer drugs.

18 Aug 2012

Increasing blood levels of particular proteins may act as warning signs for IgA nephropathy

Increasing blood levels of particular proteins may act as warning signs for patients with one of the most common diseases of the kidney, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN).

17 Aug 2012

Pyruvate kinase M2 fuels tumor growth by influencing H3 histone protein

A metabolic protein that nourishes cancer cells also activates tumor-promoting genes by loosening part of the packaging that entwines DNA to make up chromosomes, a team led by scientists at The University of Texas MD Anderson Cancer Center reports in the Aug. 16 issue of Cell.

17 Aug 2012

Researchers identify molecular and protein signatures that predict HCV virus-induced liver injury

Researchers have discovered molecular and protein signatures that predict rapid onset of liver damage in hepatitis C patients following a liver transplant. The markers appeared soon after transplant and well before clinical evidence of liver damage.

17 Aug 2012

Study reveals why human brain is large and more complex than that of other animals

Researchers have found what they believe is the key to understanding why the human brain is larger and more complex than that of other animals.

17 Aug 2012

Rhomboid enzymes and malaria treatment: an interview with Sinisa Urban

Rhomboid enzymes live in the cell’s membrane where their job is to cut the anchors of proteins, which releases the target proteins from the membrane.

16 Aug 2012

Food preferences influence sleep patterns, metabolic health

The relationship between short sleep duration and the development of metabolic abnormalities may be partly influenced by food preferences, show study findings.

16 Aug 2012

Tofacitinib shows promise in active ulcerative colitis

Tofacitinib can induce a clinical response in the majority of patients with moderate to severe, active ulcerative colitis, a placebo-controlled trial has shown.

16 Aug 2012

People with no dementia symptoms and high protein levels more likely to avoid the disease

People who are free of dementia and have high levels of a protein that indicates the presence of inflammation have relatives who are more likely to avoid the disease as well, according to a new study published in the August 15, 2012, online issue of Neurology, the medical journal of the American Academy of Neurology.

16 Aug 2012

Study tracks effects of heavy PAE on growth and body composition throughout childhood

Although studies of alcohol's effects on fetal growth have consistently demonstrated deficits that persist through infancy, the data on long-term postnatal growth from human studies have been inconsistent. A new study of the effects of heavy prenatal alcohol exposure (PAE) on growth and body composition throughout childhood has found growth restrictions that persist through to nine years of age, as well as a delay in weight gain during infancy, both of which were exacerbated by iron deficiency.

16 Aug 2012

G Protein News and Research

Semen protein acts on the female brain to prompt ovulation

Parkinson’s disease with dementia falls into two pathologic subgroups

Lack of certain gene occurs in almost 28% of breast cancers

Injectable controlled-release capsules against gum disease

PPR proteins recognise RNA targets via easy-to-understand code

Protein toxic to nerve cells in AD also contributes to memory loss

Resveratrol might help improve mobility and prevent life-threatening falls among older people

New birth-control strategy for mosquitoes can combat malaria

Scientists demonstrate automated worm sorter for biological research

UCP2 uncoupling protein occurs mainly in cells of the immune system

Computer simulations shed light on dynamic structure of major target for anti-cancer drugs

Increasing blood levels of particular proteins may act as warning signs for IgA nephropathy

Pyruvate kinase M2 fuels tumor growth by influencing H3 histone protein

Researchers identify molecular and protein signatures that predict HCV virus-induced liver injury

Study reveals why human brain is large and more complex than that of other animals

Rhomboid enzymes and malaria treatment: an interview with Sinisa Urban

Food preferences influence sleep patterns, metabolic health

Tofacitinib shows promise in active ulcerative colitis

People with no dementia symptoms and high protein levels more likely to avoid the disease

Study tracks effects of heavy PAE on growth and body composition throughout childhood

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