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Radiation therapy is a type of cancer treatment that uses beams of intense energy to kill cancer cells. Radiation therapy most often uses X-rays, but protons or other types of energy also can be used. The term “radiation therapy” most often refers to external beam radiation therapy. During this type of radiation, the high-energy beams come from a machine outside of patients body that aims the beams at a precise point on the body. During a different type of radiation treatment called brachytherapy, radiation is placed inside the body.

Radiation therapy damages cells by destroying the genetic material that controls how cells grow and divide. While both healthy and cancerous cells are damaged by radiation therapy, the goal of radiation therapy is to destroy as few normal, healthy cells as possible. Normal cells can often repair much of the damage caused by radiation.

Radiation Therapy Procedure

More than half of all people with cancer receive radiation therapy as part of their cancer treatment. Doctors use radiation therapy to treat just about every type of cancer. Radiation therapy is also useful in treating some noncancerous (benign) tumors.

How radiation therapy is used in patients with cancer

Your doctor may suggest radiation therapy as an option at different times during your cancer treatment and for different reasons, including:

  • As the only (primary) treatment for cancer
  • Before surgery, to shrink a cancerous tumor (neoadjuvant therapy)
  • After surgery, to stop the growth of any remaining cancer cells (adjuvant therapy)
  • In combination with other treatments, such as chemotherapy, to destroy cancer cells
  • In advanced cancer to alleviate symptoms caused by the cancer

Types of Radiation Therapy

Following are the are two main types of radiation therapy, external beam and internal:

The type of radiation therapy that you may have depends on many factors, including:

  • Type of cancer
  • Size of the tumor
  • Tumor’s location in the body
  • How close the tumor is to normal tissues that are sensitive to radiation
  • General health and medical history
  • Whether you will have other types of cancer treatment
  • Other factors, such as the age and other medical conditions

External Beam Radiation Therapy

External beam radiation therapy comes from a machine that aims radiation at your cancer. The machine is large and may be noisy. It does not touch you, but can move around you, sending radiation to a part of your body from many directions. External beam radiation therapy is a local treatment, which means it treats a specific part of your body. For example, if you have cancer in the lung, you will have radiation only to the chest, not to your whole body.

Internal Radiation Therapy

Internal radiation therapy is a treatment in which a source of radiation is put inside the body. The radiation source can be solid or liquid. Internal radiation therapy with a solid source is called brachytherapy. In this type of treatment, seeds, ribbons, or capsules that contain a radiation source are placed in your body, in or near the tumor. Like external beam radiation therapy, brachytherapy is a local treatment and treats only a specific part of your body. With brachytherapy, the radiation source in your body will give off radiation for a while.

Internal radiation therapy with a liquid source is called systemic therapy. Systemic means that the treatment travels in the blood to tissues throughout the body, seeking out and killing cancer cells. You receive systemic radiation therapy by swallowing, through a vein, IV or through an injection. With systemic radiation, the body fluids, such as urine, sweat, and saliva, will give off radiation for a while.

Bay Biosciences is a global leader in providing researchers with high quality, clinical grade, fully characterized human tissue samples, bio-specimens and human bio-fluid collections from cancer (tumor) tissue, cancer serum, cancer plasma cancer PBMC and human tissue samples from most other therapeutic areas and diseases.

Bay Biosciences maintains and manages it’s own bio-repository, human tissue bank (biobank) consisting of thousands of diseased samples (specimens) and from normal healthy donors available in all formats and types. Our biobank procures and stores fully consented, deidentified and institutional review boards (IRB) approved human tissue samples and matched controls.

All our human human tissue collections, human specimens and human bio-fluids are provided with detailed samples associated patient’s clinical data. This critical patient’s clinical data includes information relating to their past and current disease, treatment history, lifestyle choices, biomarkers and genetic information. Patient’s data is extremely valuable for researchers and is used to help identify new effective treatments (drug discovery & development) in oncology, other therapeutic areas and diseases. This clinical information is critical to demonstrate their impact, monitor the safety of medicines, testing & diagnostics, and generate new knowledge about the causes of disease and illness. 

Bay Biosciences banks wide variety of human tissue samples and biological samples including cryogenically preserved -80°C, fresh, fresh frozen tissue samplestumor tissue samples, FFPE’s, tissue slides, with matching human bio-fluids, whole blood and blood derived products such as serumplasma and PBMC’s.

Bay Biosciences is a global leader in collecting and providing human tissue samples according to the researchers specified requirements and customized, tailor made collection protocols. Please contact us anytime to discuss your special research projects and customized human tissue sample requirements.

Bay Biosciences provides human tissue samples (human specimens) from diseased and normal healthy donors; including peripheral whole-blood, amniotic fluid, bronchoalveolar lavage fluid (BAL), sputum, pleural effusion, cerebrospinal fluid (CSF), serum (sera), plasma, peripheral blood mononuclear cells (PBMC’s), saliva, Buffy coat, urine, stool samples, aqueous humor, vitreous humor, kidney stones, renal calculi, nephrolithiasis, urolithiasis and other bodily fluids from most diseases including cancer. We can also procure most human bio-specimens and can do special collections and requests of human samples that are difficult to find. All our human tissue samples are procured through IRB approved clinical protocols and procedures. 

In addition to the standard processing protocols Bay Biosciences can also provide human plasmaserum, PBMC bio-fluid samples using custom processing protocols, you can buy donor specific sample collections in higher volumes and specified sample aliquoting from us. Bay Biosciences also provides human samples from normal healthy donors, volunteers, for controls and clinical research, contact us Now.

 

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