Positron Emission Tomography News and Research

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Most antidepressant medications raise serotonin levels and miss key target of clinical depression

A key brain protein called monoamine oxidase A (MAO-A) - is highly elevated during clinical depression yet is unaffected by treatment with commonly used antidepressants, according to an important study published today in the Archives of General Psychiatry. The study has important implications for our understanding of why antidepressants don't always work.

9 Dec 2009

CeNeRx BioPharma's TriRima reversibly inhibits MAO-A, confirms PET imaging study

CeNeRx BioPharma, Inc., a clinical stage company developing innovative treatments for diseases of the central nervous system, today announced that a newly published PET imaging study in human subjects confirms that CeNeRx's novel compound TriRima(TM) reversibly inhibits MAO-A (monoamine oxidase A), an enzyme in the brain that plays a key role in the regulation of mood.

8 Dec 2009

TGen scientists win $1,000 prize for best scientific paper presented at BIBM09

A team of scientists at the Translational Genomics Research Institute (TGen) won a $1,000 prize for best scientific paper presented at BIBM09, a premier bioinformatics and biomedicine conference.

3 Dec 2009

Clinical interventions may help cocaine abusers from using drugs and prevent relapse

When asked to inhibit their response to a "cocaine-cues" video, active cocaine abusers were, on average, able to suppress activity in brain regions linked to drug craving, according to a new study at the U.S. Department of Energy's Brookhaven National Laboratory. The results, to be published in an upcoming issue of NeuroImage, suggest that clinical interventions designed to strengthen these inhibitory responses could help cocaine abusers stop using drugs and avoid relapse.

30 Nov 2009

Medipattern and PenRad Technologies sign sales and distribution agreement

The Medipattern Corporation ("Medipattern") (TSX VENTURE:MKI), a pioneer in the development of medical software solutions that help improve imaging workflow and productivity, and PenRad Technologies, Inc. ("PenRad"), a leader in the development of mammography information systems (MIS) are pleased to announce the signing of a sales and distribution agreement for PenRad to incorporate Medipattern's B-CAD computer aided detection for breast ultrasound imaging product line.

27 Nov 2009

Study shows 95 percent of radiation oncologists use FDG-PET, MRI and 4DCT to locate cancer

A recent study shows that 95 percent of radiation oncologists use advanced imaging techniques such as positron emission tomography (FDG-PET), magnetic resonance imaging (MRI), and 4-dimensional computed tomography (4DCT) for target delineation (to locate the tumor and other areas at risk for having cancer), according to an article in the December issue of the Journal of the American College of Radiology, (JACR, www.jacr.org).

25 Nov 2009

Direct link between insulin and core body temperature discovered

A team led by scientists at The Scripps Research Institute have discovered a direct link between insulin-a hormone long associated with metabolism and metabolic disorders such as diabetes-and core body temperature. While much research has been conducted on insulin since its discovery in the 1920s, this is the first time the hormone has been connected to the fundamental process of temperature regulation.

20 Nov 2009

Perceptive Informatics announces the expansion of its medical imaging capabilities for cardiology clinical trials

Perceptive Informatics, a leading eClinical solutions provider and a subsidiary of PAREXEL International Corporation, today announced that it has expanded its leading medical imaging capabilities with advanced nuclear imaging functionality for cardiology clinical trials.

From Parexel 17 Nov 2009

Axelar AB to present data from ongoing Phase I/II clinical trial of AXL1717

Axelar AB today announced that promising data from the ongoing Phase I/II clinical trial concerning their lead anticancer product AXL1717, an insulin-like growth factor-1 (IGF-1) receptor inhibitor, will be presented next week at the AACR-NCI-EORTC International Conference on Molecular Targets and Cancer Therapeutics, Boston, Massachusetts, USA.

13 Nov 2009

Researchers discuss imaging techniques for early diagnosis and treatment of Alzheimer's disease

With about 35 million people around the world suffering from Alzheimer's disease (AD) by the year 2010 and an expectation that these numbers will double every twenty years with approximately 115 million cases by 2050, pressure on healthcare systems worldwide will be intense. In a special issue of the journal Behavioural Neurology, twelve contributions from an international group of researchers discuss imaging techniques that may contribute to early diagnosis and advancements in treatment for this devastating disease.

11 Nov 2009

UOHI to receive $5.4M federal funds for development of new alternative radioisotope imaging tracers

Researchers from the University of Ottawa Heart Institute (UOHI) will receive nearly half of a $5.4 million federal fund to help solve a shortage of medical isotopes resulting from the shutdown of the Chalk River nuclear reactor. Two research teams will develop two new alternative radioisotope imaging tracers, test new applications for their use in diagnosing heart disease, and fast track production and distribution as quickly as possible across Canada.

10 Nov 2009

NIH grants $1 million to study whether Transcendental Meditation can prevent future heart attacks in CHD patients

The National Institutes of Health's National Heart, Lung, and Blood Institute will fund a $1 million collaborative study by the Center for Natural Medicine and Prevention at Maharishi University of Management Research Institute and Columbia University Medical Center to determine whether the stress-reducing Transcendental Meditation technique can help patients with coronary heart disease (CHD) prevent future heart attacks, strokes and death.

7 Nov 2009

PET imaging is not the basis for increasing dosage level

Positron emission tomography (PET) imaging of non-small cell lung cancer prior to receiving radiation therapy should not be the basis for determining areas that may benefit from higher doses of radiation, according to research presented by investigators at Thomas Jefferson University Hospital at the 51st ASTRO Annual Meeting (Abstract #2583/B-186).

4 Nov 2009

Molecular imaging pinpoints inflammation in the brains of schizophrenics and migraine sufferers

Inflammatory response of brain cells-as indicated by a molecular imaging technique-could tell researchers more about why certain neurologic disorders, such as migraine headaches and psychosis in schizophrenic patients, occur and provide insight into how to best treat them, according to two studies published in the November issue of the Journal of Nuclear Medicine.

31 Oct 2009

Bayer HealthCare's Phase II study results of imaging agent florbetaben

Bayer HealthCare presented results from a global Phase II study of florbetaben, its imaging agent in development for the detection of cerebral beta-Amyloid plaques, at the 19th World Congress of Neurology (WCN).

30 Oct 2009

Researchers report preclinical results of a novel PET biomarker designed to detect malignant breast tumors

Researchers at Thomas Jefferson University in Philadelphia, PA, supported in part by NuView Life Sciences, have published an article in the Journal of Nuclear Medicine reporting preclinical results of a novel PET biomarker designed to selectively detect malignant breast tumors.

30 Oct 2009

CMS requested for coverage of two FDG PET scans during the initial treatment

Seven medical imaging groups wrote a joint letter to the Centers for Medicare and Medicaid Services (CMS) to formally request coverage of two fluorodeoxyglucose (FDG) positron emission tomography (PET) scans for a patient during the initial treatment evaluation. Currently, CMS covers only one FDG-PET study during initial treatment-a limitation that the groups believe is contrary to good clinical practice under certain circumstances.

20 Oct 2009

Marker genes help determine the effectiveness of targeted molecular drug regimen for treating GIST

Analysis of a small number of marker genes may determine in a matter of hours if a patient with gastrointestinal stromal tumors (GIST) would respond to a targeted molecular drug regimen. This analysis could allow clinicians to determine if they have chosen the best course of action or need to consider another alternative.

15 Oct 2009

Decreased expression of tumor suppressor gene PTEN transforms neurofibromas into cancer

Researchers at UCLA's Jonsson Comprehensive Cancer Center showed for the first time that the loss or decreased expression of the tumor suppressor gene PTEN plays a central role in the malignant transformation of benign nerve tumors called neurofibromas into a malignant and extremely deadly form of sarcoma.

14 Oct 2009

White House honors PET researcher with National Science Award

Joanna Fowler, Ph.D., a major contributor to brain research and a pioneer in molecular imaging, is being recognized by the White House with the National Medal of Science-the highest award for lifetime achievement in science. Eight other researchers will join Fowler to receive the award at a White House ceremony on October 7.

8 Oct 2009