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Effectiveness of Chemotherapy Changes With the Time of Day, Suggests New Study

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Image credit:  Pixabay Researchers at West Virginia University (WVU) have found that the effectiveness of chemotherapy may change with the time of day that it is administered.  Chemotherapy is a type of cancer treatment in which two or more anti-cancer drugs are used. It is a part of a standard cancer treatment plan that defines drugs to be used, frequency and duration of treatment and their dosage.  During the chemotherapy process, however, the blood-brain barrier (BBB) prevents drugs from entering the brain. The blood-brain barrier (BBB) is a network of tissues and blood vessels made up of closely spaced cells. It helps keep harmful substances from reaching the brain. It allows some substances such as oxygen, water and carbon dioxide to pass into the brain. This is a good physiological process when it comes to infectious agents like bacteria, viruses and toxins. But, it also blocks anticancer drugs from entering the brain, thus making the chemotherapy process ineffective in treatin

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