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Hyperbaric Oxygen Therapy (HBOT) Research for Germ Cell Cancer.

Radiation-induced skin reactions: mechanism and treatment.

Radiotherapy (RT) is a major treatment for malignant tumors. The latest data show that >70% of patients with malignant tumors need RT at different periods. Skin changes can be experienced by up to 95% of patients who underwent RT. Inflammation and oxidative stress (OS) have been shown to be generally associated with radiation-induced skin reactions (RISRs). Inflammatory response and OS interact and promote each other during RISRs. Severe skin reactions often have a great impact on the progress of RT. The treatment of RISRs is particularly critical because advanced RT technology can also lead to skin reactions. RISRs are classified into acute and chronic reactions.

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Hyperbaric oxygen combined with 5-aminolevulinic acid photodynamic therapy inhibited human squamous cell proliferation.

he photodynamic therapy (PDT) depends on the presence of molecular oxygen. Thus, the efficiency of PDT is limited in anoxic regions of tumor tissue and vascular shutdown. It is reported the use of hyperbaric oxygen (HBO) may enhance the efficiency of PDT. However, there are rarely studies about utilizing HBO plus PDT for treatment with human squamous cell carcinoma (SCC). Therefore, this study aimed to investigate and compare the therapeutic effect of combined therapy and PDT alone treatment. Multiple cellular and molecular biology techniques were used in the current study such as CCK-8, western blotting, flow cytometry, MDC staining and immunofluorescence assay.

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Overcoming tumor hypoxia as a barrier to radiotherapy, chemotherapy and immunotherapy in cancer treatment.

Hypoxia exists to some degree in most solid tumors due to inadequate oxygen delivery of the abnormal vasculature which cannot meet the demands of the rapidly proliferating cancer cells. The levels of oxygenation within the same tumor are highly variable from one area to another and can change over time. Tumor hypoxia is an important impediment to effective cancer therapy. In radiotherapy, the primary mechanism is the creation of reactive oxygen species; hypoxic tumors are therefore radiation resistant. A number of chemotherapeutic drugs have been shown to be less effective when exposed to a hypoxic environment which can lead to further disease progression.

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The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Treatment of Chronic Radiation Proctitis.

The American Society of Colon and Rectal Surgeons (ASCRS) is dedicated to ensuring high-quality patient care by advancing the science, prevention, and management of disorders and diseases of the colon, rectum, and anus. The Clinical Practice Guidelines Committee is charged with leading international efforts in defining quality care for conditions related to the colon, rectum, and anus by developing clinical practice guidelines based on the best available evidence. These guidelines are inclusive, not prescriptive, and are intended for the use of all practitioners, healthcare workers, and patients who desire information about the management of the conditions addressed by the topics covered in these guidelines. Their purpose is to provide information on which decisions can be made rather than to dictate a specific form of treatment.

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Clinical trials targeting hypoxia.

Abstract: The concept of tumour hypoxia as a cause of radiation resistance has been prevalent for over 100 years. During this time, our understanding of tumour hypoxia has matured with the recognition that oxygen tension within a tumour is influenced by both diffusion...

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