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Related Concept Videos

Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
The average...
Cancer Therapies02:49

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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Biological Effects of Radiation02:59

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All radioactive nuclides emit high-energy particles or electromagnetic waves. When this radiation encounters living cells, it can cause heating, break chemical bonds, or ionize molecules. The most serious biological damage results when these radioactive emissions fragment or ionize molecules. For example, α and β particles emitted from nuclear decay reactions possess much higher energies than ordinary chemical bond energies. When these particles strike and penetrate matter, they produce ions...
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Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
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Related Experiment Video

Updated: Jun 4, 2026

Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
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AIDS: a radiation oncologist's perspective.

Suman Mallik1, Kaustav Talapatra, Jyotirup Goswami

  • 1Department of Radiation Oncology, Centre for Cancer, Kokilaben Dhirubhai Ambani Hospital and Research Institute, Four Banglows, Andheri (W), Mumbai - 400053, Maharashtra, India. malliksuman@gmail.com

Journal of Cancer Research and Therapeutics
|March 2, 2011
PubMed
Summary

Radiotherapy for HIV patients is effective, especially with high CD4 counts and HAART. Standard cancer treatments are recommended, but caution is advised for those with lower immunity.

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Area of Science:

  • Oncology
  • Infectious Diseases
  • Immunology

Background:

  • HIV infection is linked to various malignancies, including AIDS-defining cancers and others.
  • Radiotherapy is a key cancer treatment, necessitating evaluation of its efficacy and tolerance in HIV+ individuals.
  • Patient immunity, indicated by CD4 count, significantly impacts cancer treatment outcomes.

Purpose of the Study:

  • To assess the role and outcomes of radiotherapy in managing malignancies in patients with HIV.
  • To explore the influence of CD4 count and highly active antiretroviral therapy (HAART) on radiotherapy efficacy.
  • To review the current understanding of radiosensitivity and treatment protocols for HIV-associated cancers.

Main Methods:

  • Review of existing literature on radiotherapy, chemotherapy, and outcomes in HIV+ patients with various cancers.
  • Analysis of the impact of CD4+ T-cell counts on treatment tolerance and survival rates.
  • Examination of the role of HAART in improving treatment outcomes and enabling standard dosing.

Main Results:

  • Standard radiotherapy and chemoradiotherapy doses are feasible and effective in HIV+ patients, particularly with CD4 counts >200/mm³.
  • HAART has improved treatment outcomes, allowing for standard chemotherapy and radiotherapy regimens.
  • Local control and disease-specific survival rates in HIV+ patients are comparable to HIV-negative patients when CD4 counts are adequate.
  • Primary central nervous system lymphoma incidence is linked to low CD4 counts (<50/mm³).
  • HAART may contribute to regression in conditions like cervical intraepithelial neoplasia (CIN).

Conclusions:

  • Standard anti-cancer regimens, including radiotherapy, can be safely administered to HIV+ patients, with careful monitoring of CD4 counts and supportive care.
  • Optimized HAART and supportive care are crucial for successful cancer treatment in HIV+ individuals.
  • Further research is needed to clarify radiosensitivity in HIV patients and address non-HIV-associated malignancies.