BACKGROUND: Skin cancer, the most common cancer in the U.S., is a major public health problem. The incidence of nonmelanoma and melanoma skin cancer is increasing; however, little is known about the economic burden of treatment. PURPOSE: To examine trends in the...
Radiation Therapy
Electrons Versus Surface Brachytherapy for Non-Melanoma Skin Cancer – A Matched Pair Analysis
Surgery is the mainstay of treatment for non-melanoma skin cancers (NMSC) unless location or comorbidities mandate noninvasive modalities like radiation. Electrons are commonly used worldwide to treat skin cancers; however, there has been a recent increase in use of...
Head and Neck Nonmelanoma Skin Cancer Treated by Orthovoltage Radiation: An Analysis of 1021 Cases
To report a single-institutional experience with the use of orthovoltage radiation for head and neck non-melanoma cutaneous skin cancer (basal cell carcinoma - BCC, squamous cell carcinoma - SCC, and non-invasive squamous cell carcinoma - SCC in situ) and to compare...
Skin Cancers of the Head and Neck: A 21-Year Single-Institution Experience
Skin cancer of the head and neck comprise a heterogeneous mix of tumors with differing treatment response and outcomes depending upon histology. We present a large retrospective analysis of these tumors treated in a single institution over a 21-year period. We present...
Hypofractionated High-Dose-Rate Brachytherapy in Nonmelanoma Skin Cancer Treatment
PURPOSE: Nonmelanoma skin cancer (NMSC) is the commonest cancer in humans. NMSC treatment currently includes surgery, radiation therapy, and topical approaches. The objective was to analyze and compare the outcomes, toxicity, and cosmesis of NMSC treated by two...
Clinical implementation of a new electronic brachytherapy system for skin brachytherapy
Although surgery is usually the first-line treatment for nonmelanoma skin cancers, radiotherapy (RT) may be indicated in selected cases. Radiation therapy as primary therapy can result in excellent control rates, cosmetics, and quality of life. Brachytherapy is a...
Dietary and sex-specific factors regulate hypothalamic neurogenesis in young adult mice.
The hypothalamus is the central regulator of a broad range of homeostatic and instinctive physiological processes, such as the sleep-wake cycle, food intake, and sexually dimorphic behaviors. These behaviors can be modified by various environmental and physiological cues, although the molecular and cellular mechanisms that mediate these effects remain poorly understood. Recently, it has become clear that both the juvenile and adult hypothalamus exhibit ongoing neurogenesis, which serve to modify homeostatic neural circuitry. In this report, we share new findings on the contributions of sex-specific and dietary factors to regulating neurogenesis in the hypothalamic mediobasal hypothalamus, a recently identified neurogenic niche. We report that high fat diet (HFD) selectively activates neurogenesis in the median eminence (ME) of young adult female but not male mice, and that focal irradiation of the ME in HFD-fed mice reduces weight gain in females but not males. These results suggest that some physiological effects of high fat diet are mediated by the stimulation of ME neurogenesis in a sexually dimorphic manner. We discuss these results in the context of recent advances in understanding the cellular and molecular mechanisms that regulate neurogenesis in postnatal and adult hypothalamus.
Daniel A. Lee, Sooyeon Yoo, Thomas Pak, Juan Salvatierra, Esteban Velarde, Susan Aja, and Seth Blackshaw
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Use of Single- versus Multiple-Fraction Palliative Radiation Therapy for Bone Metastases: Population-Based Analysis of 16,898 Courses in a Canadian Province
PURPOSE: There is abundant evidence that a single fraction (SF) of palliative radiation therapy (RT) for bone metastases is equivalent to more protracted and costly multiple fraction courses. Despite this, there is low utilization of SFRT internationally. We sought to...
Predictors of recurrence after radiotherapy for non-melanoma skin cancer
Predictive factors of recurrence were examined in 448 non-melanoma skin cancers (72% basal cell carcinoma, 28% squamous cell carcinoma) treated with radiotherapy. The overall recurrence rate was 15.8% at a median follow-up of 18.4 months. In multivariate analysis,...