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Biomedical subjects

Margaret Burnett

Publications and source records attributed to Margaret Burnett.

3 recordsLinked to original sources
PubMed2006

Training effects in mice after long-term voluntary exercise.

BACKGROUND: Mice are an important animal model in exercise studies on the immune system, cancer, and aging. There is limited research about the training effects of long-term voluntary exercise in this species. PURPOSE: To describe the training effects in mice given long-term aerobic voluntary exercise. METHODS: Female C57BL/6 mice were randomly assigned to 1) individual cages with in-cage running wheels with 24-h access (WR; N = 31), or 2) individual cages without running wheels for 16 wk (NR; N = 20). Run-to-exhaustion (RTE) times, VO2peak, speed at VO2peak, and citrate synthase (CS), succinate dehydrogenase (SDH), and phosphofructokinase (PFK) activity in the soleus, plantaris, and red and white gastrocnemius were assessed. RESULTS: Final body weight and speed at VO2peak did not differ by training condition. WR mice had significantly longer RTE times (P < 0.001) and higher VO2peak (P < 0.05) compared with NR mice. Higher CS and SDH activities were found in WR compared with NR mice for soleus (P < 0.01), red gastrocnemius (P < 0.01), and plantaris (P < 0.01) muscles. PFK activity was higher in WR mice in white gastrocnemius compared with NR mice (P < 0.01). CONCLUSIONS: Voluntary running wheel activity for 16 wk in female C57BL/6 mice resulted in longer run times to exhaustion, higher VO2peak, and higher SDH and CS activities in oxidative muscles. These findings suggest that wheel running in female C57BL/6 mice: 1) produces a measurable aerobic training effect and 2) is an effective exercise modality for long-term training studies.

Analysis of Variance↗
PubMed2005

Primary dysmenorrhea consensus guideline.

METHODS: Members of this consensus group were selected based on individual expertise to represent a range of practical and academic experience both in terms of location in Canada and type of practice, as well as subspecialty expertise along with general gynaecology backgrounds. The consensus group reviewed all available evidence through the English and French medical literature and available data from a survey of Canadian women. Recommendations were established as consensus statements. The final document was reviewed and approved by the Executive and Council of the SOGC. RESULTS: This document provides a summary of up-to-date evidence regarding the diagnosis, investigations, and medical and surgical management of dysmenorrhea. The resulting recommendations may be adapted by individual health care workers when serving women who suffer from this condition. CONCLUSIONS: Dysmenorrhea is an extremely common and sometimes debilitating condition for women of reproductive age. A multidisciplinary approach involving a combination of lifestyle, medications, and allied health services should be used to limit the impact of this condition on activities of daily living. In some circumstances, surgery is required to offer the desired relief. OUTCOMES: This guideline discusses the various options in managing dysmenorrhea. Patient information materials may be derived from these guidelines in order to educate women in terms of their options and possible risks and benefits of various treatment strategies. Women who find an acceptable management strategy for this condition may benefit from an improved quality of life.

Diagnosis, Differential↗