The importance of the cellular stress response in the pathogenesis and treatment of type 2 diabetes

Organisms have evolved to survive rigorous environments and are not prepared to thrive in a world of caloric excess and sedentary behavior. A realization that physical exercise (or lack of it) plays a pivotal role in both the pathogenesis and therapy of type 2 diabetes mellitus (t2DM) has led to the provocative concept of therapeutic exercise mimetics. A decade ago, we attempted to simulate the beneficial effects of exercise by treating t2DM patients with 3 weeks of daily hyperthermia, induced by hot tub immersion. The short-term intervention had remarkable success, with a 1 % drop in HbA1, a trend toward weight loss, and improvement in diabetic neuropathic symptoms. An explanation for the beneficial effects of exercise and hyperthermia centers upon their ability to induce the cellular stress response (the heat shock response) and restore cellular homeostasis. Impaired stress response precedes major metabolic defects associated with t2DM and may be a near seminal event in the pathogenesis of the disease, tipping the balance from health into disease. Heat shock protein inducers share metabolic pathways associated with exercise with activation of AMPK, PGC1-a, and sirtuins. Diabetic therapies that induce the stress response, whether via heat, bioactive compounds, or genetic manipulation, improve or prevent all of the morbidities and comorbidities associated with the disease. The agents reduce insulin resistance, inflammatory cytokines, visceral adiposity, and body weight while increasing mitochondrial activity, normalizing membrane structure and lipid composition, and preserving organ function. Therapies restoring the stress response can re-tip the balance from disease into health and address the multifaceted defects associated with the disease

Scoping review of indicators and methods of measurement used to evaluate the impact of dog population management interventions

Background: Dogs are ubiquitous in human society and attempts to manage their populations are common to most countries. Managing dog populations is achieved through a range of interventions to suit the dog population dynamics and dog ownership characteristics of the location, with a number of potential impacts or goals in mind. Impact assessment provides the opportunity for interventions to identify areas of inefficiencies for improvement and build evidence of positive change. Methods: This scoping review collates 26 studies that have assessed the impacts of dog population management interventions. Results: It reports the use of 29 indicators of change under 8 categories of impact and describes variation in the methods used to measure these indicators. Conclusion: The relatively few published examples of impact assessment in dog population management suggest this field is in its infancy; however this review highlights those notable exceptions. By describing those indicators and methods of measurement that have been reported thus far, and apparent barriers to efficient assessment, this review aims to support and direct future impact assessment

Características relatadas sobre animais agressores submetidos ao diagnóstico de raiva, São Paulo, Brasil, 1993-2007 Characteristics of biting animals submitted to rabies diagnosis, São Paulo State, Brazil, 1993-2007

As pesquisas relativas a agressões por animais baseiam-se em dados de registros de pacientes atendidos nos serviços de vigilância epidemiológica da raiva. Analisaram-se as características de animais agressores, obtidas a partir de dados de 10.616 fichas de envio de amostras para diagnóstico da raiva na região noroeste do Estado de São Paulo, Brasil, entre 1993-2007. Desse total de fichas, 61,5% continham informações sobre agressão e, dentre os animais agressores (25%), a maioria foi de cães (67%), seguidos por gatos (21,8%) e quirópteros (8,1%). Em 92,1% dos relatos as vítimas eram pessoas e 82,3% dos animais eram domiciliados. A maioria dos cães agressores tinha até um ano de idade. Houve associação significante (p < 0,0001) entre agressividade e sexo, sendo os machos mais agressores do que as fêmeas. Dos animais positivos para raiva, 75,9% (183/241) eram agressores. Os dados obtidos são importantes para a instituição de programas de prevenção de mordeduras, baseados no perfil não só da vítima, mas também do animal agressor, além de permitirem estabelecer fatores de risco para ocorrência de agressões.<br>Epidemiological factors related to animal bites in humans and other animals were obtained from a database with 10,616 records of animal specimens sent for rabies diagnosis in northwest São Paulo State, Brazil, from 1993 to 2007. Of this total, 61.5% contained information on the bites, and among the biting animals (25%), the majority were dogs (67%), followed by cats (21.8%), and bats (8.1%). In 92.1% of the reports the victims were humans, and 82.3% of the animals were home pets. The majority of the biting dogs were less than a year old. There was a significant association (p < 0.0001) between aggressiveness and gender (with male animals more aggressive than females). Of the rabies-positive animals, 75.9% (183/241) were biters. The data are important for establishing bite prevention programs based on the profile of both victims and biting animals, besides identifying risk factors for animal bites