Purpose: Craniospinal axis irradiation (CSI) is a method of treating various central nervous system malignancies. The large target volume typically includes entire spinal cord and whole brain. Dosimetric comparison was performed between tomotherapy, volumetric modulated arc therapy (VMAT), and 3D conformal radiation therapy (3D-CRT) for CSI. Methods and Materials: Five (n = 5) CSI patients were...

background: it is now well-demonstrated that histone demethylases play an important role in developmental controls, cell-fate decisions, and a variety of diseases such as cancer. lysine-specific demethylase 5d (kdm5d) is a male-specific histone demethylase that specifically demethylates di- and tri-methyl h3k4 at the start site of active genes. in this light, the aim of this study was to invest...

background: latent adenocarcinoma of prostate refers to cases who present no obvious sign or symptom during their life spans and the tumor is incidentally found at postmortem examination. its frequency can be very important in epidemiologic investigations, prevention and treatment. no previous study has been done in this regard in iran and the studies performed in other countries show various r...

results in a total of 40 sporadic prostate cancer and 80 benign prostatic hyperplasia cases, no xmrv was detected by real-time pcr and nested-pcr. rnase l r462q polymorphism analysis reveals that although there was an increase in the risk of prostate cancer correlated with the q/q allele of rnase l at position 462, the frequencies of the rnase l r462q alleles were not statistically significant ...

Purpose: We used randomized trials of radiotherapy (RT) with or without chemotherapy in non-metastatic nasopharyngeal carcinoma to investigate the survival benefit of chemoradiotherapy regimens between two/three-dimensional radiotherapy (2D/3D RT) and intensity-modulated radiotherapy (IMRT). Methods: Overall, 27 trials and 7,940 patients were included. Treatments were grouped into seven categor...

The aim of this study was to investigate the feasibility and safety of high-intensity focused ultrasound (HIFU) combined with (+) low-dose external beam radiotherapy (LRT) as supplemental therapy for advanced prostate cancer (PCa) following hormonal therapy (HT). Our definition of HIFU+LRT refers to treating primary tumour lesions with HIFU in place of reduced field boost irradiation to the pro...

normal 0 false false false en-us x-none ar-sa background: prostate cancer is one of the most common cancer types both in western and eastern countries, involving mostly elder men. the mechanisms underlying the prostate cancer development remain unclear. prostate-specific antigen (psa) is the only well accepted marker for prostate cancer diagnosis and prognosis. the diagnosis and treatment of pr...

BACKGROUND To compare volumetric-modulated arc therapy plans with conventional radiation therapy (3D-CRT) plans in pancreatic and bile duct cancers, especially for bilateral kidney preservation. METHODS A dosimetric analysis was performed in 21 patients who had undergone radiotherapy for pancreatic or bile duct carcinoma at our institution. We compared 4-field 3D-CRT and 2 arcs RapidArc (RA) ...

prostate cancer is the second common form of cancer in men. detection of circulating prostate specific antigen (psa) transcripts has effectively been used for early diagnosis of prostate cancer cells. this investigation employed a reverse transcriptase polymerase chain reaction (rt-pcr) technique to distinguish the patients with either localized or metastatic prostate cancer (cap) vs. benign pr...

Background: We compared 3D-conformal radiation therapy (3D-CRT) and intensity-modulated (IMRT) planning for left-sided post-mastectomy patients. Aim: To compare the dose coverage of target volume (PTV) delivered to organs at risk (OAR) 3D-CRT IMRT plans. Setting: Department Oncology, central South Africa. Methods: Twenty-six archived CT scans patients with breast cancer were included. The plans...