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Word Count: 750
Being diagnosed with cancer is a very serious issue Over 13 million people are going to be diagnosed with cancer this year alone About 563700 people will die this year from cancer-related illnesses Technically the figures are declining but there are still treatments which need improvement and more studies conducted showing their progression Cancer is characterized by uncontrolled and abnormal cell growth Surgery radiation therapy and chemotherapy which use anti-cancer drugs are generally included in cancer therapy Of them chemotherapy is the most frequently used method to prevent further growth of tumor cells or to kill them Although the purpose of chemotherapy is to attack tumor cells and stop tumor progression it turns out to be very challenging to protect normal healthy cells from being damaged by chemotherapy Anticancer drugs induce high toxicities and side effects such as vomiting hair loss and low immune response in patients because the drugs attack healthy cells as well as tumor cells In some cases anti-cancer drugs are ineffective in diminishing tumor size because they fail to reach the site of cancer In chemotherapy an intravenous injection an injection through the vein is generally used to administer anti-cancer drugs As a result the drugs spread throughout the body in blood circulation Once a drug is in the blood circulation it reaches any part of the body from the head to the feet Therefore the accumulation of the drugs is at the cancer site only thus preventing the drugs distribution throughout the body as required To solve the side effects and low effectiveness problems of chemotherapy various approaches have been performed with the goal of localization of chemotherapy The approaches are currently categorized under two different titles local injection method and targeting of anti-cancer drugs One approach used to localize chemotherapeutic agents another name of anti-cancer drugs is direct injection to the tumor site Even though the idea is very simple numerous studies have been done to
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