Medicine and Health Sciences Commons^™

Evaluating Changes In Radiation Treatment Volumes From Post-Operative To Same-Day Planning Mri In High-Grade Gliomas., Colin E Champ, Joshua Siglin, Mark V Mishra, Xinglei Shen, Maria Werner-Wasik, David W Andrews, Sonal U Mayekar, Haisong Liu, Wenyin Shi

Department of Radiation Oncology Faculty Papers

BACKGROUND: Adjuvant radiation therapy (RT) with temozolomide (TMZ) is standard of care for high grade gliomas (HGG) patients. RT is commonly started 3 to 5 weeks after surgery. The deformation of the tumor bed and brain from surgery to RT is poorly studied. This study examined the magnitude of volume change in the postoperative tumor bed and the potential impact of RT planning.

METHOD AND MATERIALS: This study includes 24 patients with HGG who underwent craniotomy and adjuvant RT with TMZ at our institution. All patients had immediate postoperative MRI and repeat MRI during the day of RT simulation. Gross …

Increase In Muscle Mitochondrial Biogenesis Does Not Prevent Muscle Loss But Increased Tumor Size In A Mouse Model Of Acute Cancer-Induced Cachexia., Xiao Wang, Alicia M Pickrell, Teresa A Zimmers, Carlos T Moraes

Kimmel Cancer Center Faculty Papers

Cancer-associated cachexia is a complex metabolic condition characterized by the progressive loss of body fat and deterioration of muscle mass. Although the cellular and molecular mechanisms of cachexia are incompletely understood, previous studies have suggested mitochondrial dysfunction in murine models of cancer cachexia. To better understand the metabolic shift in cancer-induced cachexia, we studied the effects of enhanced oxidative capacity on muscle wasting using transgenic mice over-expressing Peroxisome Proliferator-Activated Receptor gamma Co-activator-1α (PGC-1α) in skeletal muscle in a Lewis lung carcinoma-implanted model. Increased mitochondrial biogenesis was observed in the skeletal muscle of tumor-implanted mice. However, these increases did not prevent …

Lymph Node Ratio Is An Important And Independent Prognostic Factor For Patients With Stage Iii Melanoma, Adam C. Berger, Michael Fierro, John C. Kairys, David Berd, Takami Sato, Jocelyn Andrel, Terry Hyslop, Michael J. Mastrangelo

Kimmel Cancer Center Faculty Papers

INTRODUCTION:

The incidence of melanoma is dramatically increasing worldwide. We hypothesized that the ratio of metastatic to examined lymph node ratio (LNR) would be the most important prognostic factor for stage III patients.

METHODS:

We retrospectively reviewed our institutional database of melanoma patients and identified 168 patients who underwent lymph node dissection (LND) for stage III disease between 1993 and 2007. Patients were divided into three groups based on LNR (≤10%, n = 93; 10-≤25%, n = 45; and >25%, n = 30). Univariate and multivariate analysis was performed using Cox proportional hazards model.

RESULTS:

The median survival time of …