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...
Conditions
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
Download Paper
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,...
Single versus multiple fractions of repeat radiation for painful bone metastases: a randomised, controlled, non-inferiority trial
BACKGROUND: Although repeat radiation treatment has been shown to palliate pain in patients with bone metastases from multiple primary origin sites, data for the best possible dose fractionation schedules are lacking. We aimed to assess two dose fractionation...
Evidence-based treatment for low-risk basal cell carcinoma
Basal-cell carcinoma is the most common cancer worldwide, with more than 2 million lesions treated in the USA in 2006.1,2 In the UK, many basal-cell carcinomas are not registered, which greatly underestimates the numbers of individuals affected.3 Incidence is...
Orthovoltage radiotherapy in the management of medial canthal basal cell carcinoma
AIMS: To report the local control and complication rates of orthovoltage radiotherapy in the management of medial canthal basal cell carcinoma (BCC). METHODS: The medical records of all patients treated with medial canthal BCC between 1998 and 2010, with orthovoltage...
Outcome of patients treated with a single-fraction dose of palliative radiation for cutaneous T-cell lymphoma
PURPOSE: Cutaneous T-cell lymphoma (CTCL) is a radiosensitive tumor. Presently, treatment with radiation is given in multiple fractions. The current literature lacks data that support single-fraction treatment for CTCL. This retrospective review assesses the clinical...
Clinical variants, stages, and management of basal cell carcinoma
Basal cell carcinoma (BCC) is the most common paraneoplastic disease among human neoplasms. The tumor affects mainly photoexposed areas, most often in the head and seldom appears on genitalia and perigenital region. BCC progresses slowly and metastases are found in...