Protons in Medical News

Proton-powered pooping

... of Utah scientists discovered that bare subatomic protons can act like larger, more complex ... to trigger electrical changes in cells. protons are the only new members of this group in nearly ... of many atoms, the new study revealed a surprise: protons which are single hydrogen atoms stripped of ...

ProCure Treatment Centers to Equip Chicago Facility With Software Solutions From Elekta

... most robust dose calculation algorithms, XiO allows users to generate quick and accurate treatment plans. Developed more than a decade ago, XiO for protons is in clinical use at more proton facilities than any other commercial vendor. Vendor-neutral, XiO also is used in conjunction with IBA, Varian and ...

Compact cancer-therapy particle-delivery system patented

... Unlike conventional radiation beams, which deposit energy as they travel through healthy tissue on the way to internal tumors, particle beams made of protons or charged ions, such as carbon, deposit most of their energy at the cancerous tumor. Thus, precisely aimed particle beams have more cancer-killing ...

Mini heart attacks lessen damage from major ones

... The cell's powerhouse, mitochondria use oxygen to convert nutrients into cellular energy supply. As they do so, they create a gradient of protons across their membranes. When the gradient becomes too large, it triggers the mitochondria to use oxygen to generate free radicals. The problem gets ...

Proton therapy may reduce serious side effect of lung cancer treatment

... (IMRT). The remaining 67 patients received chemotherapy and proton beam therapy. Proton beam therapy is a type of external beam therapy that uses protons rather than photons to kill fast growing cancer cells. "Because proton therapy allows us to control the radiation differently than other types of ...

Groundbreaking cancer studies to be unveiled at ASTRO annual meeting

... Compared To Standard Radiation Treatment Patients who are treated with proton therapy (a specialized type of external beam radiation therapy using protons rather than X-rays to treat cancer) decreases the risk of patients developing a secondary cancer by two-fold, compared to being treated with standard ...

Cancer research highlights

... oncologists to adjust the energy delivered to the tumor assuring that the prescribed energy is delivered at right location. Since high energy protons and photons induce gamma rays via interaction with nuclei in the human body by imaging the gamma rays, one could see the location and measure the ...

Siemens Consortium to Construct Particle Therapy Center at the University Clinic of Schleswig-Holstein

... The company will contribute its extensive experience in financing, construction, and building operation to the Kiel project. In particle therapy, protons or carbon ions are accelerated to a very high speed by an accelerator system and then applied precisely to the target tissue. Calculation and control ...

Iowa State chemists track how drug changes, blocks flu virus

... it inside the cell through a process called endocytosis. Once in the cell, the virus uses a protein called M2 to open a channel to the healthy cell. protons from the healthy cell flow through the channel into the virus and raise its acidity. That triggers the release of the virus genetic material into the ...

Penn researchers discover new target for preventing and treating flu

... the Jan. 31 issue of the journal Nature. The M2 protein is located in the viral envelope, forming a long, narrow channel that allows the flow of protons into the viral interior, an essential step for infection. Amantadine sits in this channel and blocks the flow of protons, thus halting infection. In ...

Feds fund study of drug that may prevent radiation injury

... radiation is any form of radioactive particle or energy that converts an atom or molecule into an ion by altering the balance between the number of protons and electrons. In living organisms, ionization often results in the creation of free radicals -- highly reactive molecules that can wreak havoc by ...

Argonne's Blue Gene/P to host large cadre of INCITE researchers

... structural and reaction properties of light- and medium-mass nuclei into the iron region from the complex two- and three-nucleon forces among protons and neutrons, potentially providing an understanding from first principles to triple-alpha burning the process by which a mature star creates ...

January American Naturalist highlights

... few theories of plant competition account for the well-documented ability of plants to increase the availability of key soil nutrients by releasing protons or organic compounds from their roots. In order to study the consequences of the liberation of such compounds on competitive interactions between ...

Damage Due to MS Might Extend Into Larger Portions Of The Normal Brain

... a magnetic field and a radio frequency (RF) pulse. Due to this RF pulse, protons in the body first reach an excited state and then relax back to a state of ... energy to the surrounding tissues. T1 refers to the time required for protons to relax to the equilibrium state in this particular manner. The ...

How Bacteria Generate Energy to Live?

... essential cell functions, such as the movement of the bacterium’s tail, the flagellum. Most cells, including human cells, use gradients of protons for this energy conservation function, but enzymes that work with sodium ions are ideal for experimental study, according to Barquera. Sodium is ...

Indian radiologist spearheads cure for osteoarthritis sans surgery

... and focused on to tissues, generating streaming voltage potentials. The electrical impulse in the joints causes forced movement of hydrogen protons and stimulates the cartilage called chondrocytes. "The trials have demonstrated that RFQMR stimulates the chondrocytes and initiates the ...

Isotopes For Cancer Treatment In India

... development and installation of a modern cyclotron based proton therapy facility for cancer treatment in India. High intense beam of 30 MeV protons will be used to produce SPECT (Single Photon Emission Computed Tomography) isotopes such as Gallium-67, Indium-111, Iodine-123, Thallium-201, for the ...

New Research Could Improve Knowledge Of Serious Illnesses

... resonance imaging (MRI) body scanners that are already widely used in hospitals. However, whereas MRI scanners use the magnetic properties of the protons in water to generate an image, electron spin resonance instruments use the magnetic properties of electrons. This fundamental difference makes ...

Elusive Step In DNA Mutation Uncovered By Researchers

... leading to the formation of a transition state complex involving the two neighboring water molecules. The complex breaks up, transferring one of its protons (a positively charged hydrogen atom) to the neighboring water molecule, making a hydronium ion H3O+. This leaves the guanine neutral, with the rest ...

Abnormal Abeta - Protein Level in Human Brain Trigger Alzheimer's Risk

... subjects a form of the amino acid leucine that has been very slightly altered to label it. Inside the leucine are carbon atoms with 13 neutrons and protons in their nucleus instead of the more common 12 neutrons and protons--in scientific parlance, carbon 13 instead of carbon 12. 'Normally only about ...