Quantification of the Most Effective X-Ray Dosage for Inhibiting Invasion of Glioma Cell Line.

Background: One key feature that distinguishes cancerous cell populations from their normal counterparts is a heightened tendency towards uncontrolled growth and invasive activity. Therapeutic techniques like radiotherapy can impact the viability and invasive behavior of cancer cells by modifying the structure of DNA and inducing programmed cell death.

Methods: This research is an experimental study and involved a comprehensive investigation into the effects of 6MV X-ray radiotherapy on various absorbed doses (ranging from 4 to 10 Gy by steps 2Gy) on toxicity, migration, and colony formation in C6 glioblastoma cellular cultures.

Ishāq bin Ali al-Ruhawi, a pioneer in medical professionalism in the 9th century AD.

Professionalism and medical ethics, while similar, are often viewed in different contexts. An historical and social science analysis reveals that professionalism is a complex skill that can be developed over time. The key components of professionalism, as defined by the American Physical Therapy Association, include accountability, altruism, compassion, excellence, integrity, professional duty, and social responsibility.

Renal-Type Clear Cell Carcinoma of the Prostate: A Rare Case Report.

Occurrence of clear cell carcinoma of the prostate is exceedingly rare and presents a diagnostic dilemma. We describe a case of a 47-year-old male nonsmoker, who presented with a history of frequency, dribbling urination, and dysuria for 6 months. In a digital rectal exam, enlarged prostate with a hard consistency was identified.

The effect of resistance training on serum levels of sex hormones and sperm quality in male rats under X-ray radiation.

Objectives: The present study aims to investigate the effects of resistance training on sex hormones and sperm parameters in male rats under X-ray.

Methods: In this experimental study, 24 Sprague Dawley rats (200-250 g) were randomly assigned into four groups: healthy control, irradiated control, healthy training and irradiated training. Irradiation was induced at a dose of 4 Gy on the whole body.

Evaluation of Radiotherapy on Gene Expression in Colorectal Cancer Patient Blood Samples.

Background: Current cancer treatments include surgery, radiotherapy, chemotherapy, and immunotherapy. Despite these treatments, a main issue in cancer treatment is early detection. microRNAs (miRNAs) can be used as markers to diagnose and treat cancers.

Conformational changes of β-thalassemia major hemoglobin and oxidative status of plasma after in vitro exposure to extremely low-frequency electromagnetic fields: An artificial neural network analysis.

Electromagnetic fields (EMF) can generate reactive oxygen species and induce oxidative modifications. We investigated the effects of extremely low-frequency electromagnetic fields (ELF-EMF) on oxidative status of plasma and erythrocytes in β-thalassemia major patients and design artificial neural networks (ANN) for evaluating the oxyHb concentration. Blood samples were obtained from age and sex-matched healthy donors (n = 12) and major β-thalassemia patients (n = 12) and subjected to 0.

Comparison of dosimetric parameters of small-field electron beams between Advanced Markus, Semiflex 3D, and Diode E responses.

The usage of dosimetry of small fields in radiotherapy to measure radiation dose is difficult because of high-dose gradients, lateral electronic disequilibrium, and detector volume effects. In this study, three dosimeters namely, Markus, Semiflex 3D, and Diode E were tested using the Elekta-accelerator electron beams. The electron beam parameters, penumbra, and output factor were determined using these dosimeters for each field size and energy.

Comparison of Photon-electron and Photon Radiotherapy for Supraclavicular Lymph Nodes of Mastectomy Patients with Left-sided Breast Cancer.

The aim of radiotherapy is to deliver the highest possible radiation dose to the tumor and the lowest radiation to normal tissues surrounding the tumor. In the present study, lymph nodes of the supraclavicular region were treated using two therapeutic techniques, namely photon technique (PT) and combinatory photon-electron technique (CPET). We recruited 50 patients with local lymph node metastasis.

Investigating the Impact of Knee Prosthesis in Patients' Body on Radiation Dose Distribution: A Monte Carlo Approach.

Background: Metal prostheses in patients affect the radiotherapy dose distribution. Metal prostheses with high density and atomic number cause major changes in scattering and attenuation of radiation. The present study aims to assess the impact of metal knee prosthesis with various dimensions and materials on radiotherapy dose distribution.

Investigating the Effect of Air Cavities of Sinuses on the Radiotherapy Dose Distribution Using Monte Carlo Method.

Background: Considering that some vital organs exist in the head and neck region, the treatment of tumors in this area is a crucial task. The existence of air cavities, namely sinuses, disrupt the radiotherapy dose distribution. The study aims to analyze the effect of maxillary, frontal, ethmoid and sphenoid sinuses on radiotherapy dose distribution by Monte Carlo method.

Protective properties of Myrtus communis extract against oxidative effects of extremely low-frequency magnetic fields on rat plasma and hemoglobin.

Purpose: This study investigates the protective properties of Myrtus communis extract against the oxidative effects of extremely low-frequency magnetic fields (ELFMF). Also, this study is aimed to analyze the conformational changes of hemoglobin, oxidative damages to plasma proteins and antioxidant power of plasma following exposure to ELFMF.

Materials And Methods: Adult male rats were divided into 3 groups: (1) control, (2) ELFMF exposure, and (3) ELFMF exposure after M.

Evaluation of thyroid gland as an organ at risk after breast cancer radiotherapy: a systematic review and meta-analysis.

Background: Radiotherapy can often lead to thyroid dysfunction. Some studies demonstrated that treatment of breast cancer by RT can expose thyroid gland to high doses of radiation. The aim of this systematic review is to evaluate consideration of thyroid gland as an organ at risk.

Evaluation of electron contamination in cancer treatment with megavoltage photon beams: monte carlo study.

Background: Megavoltage beams used in radiotherapy are contaminated with secondary electrons. Different parts of linac head and air above patient act as a source of this contamination. This contamination can increase damage to skin and subcutaneous tissue during radiotherapy.