A pilot study of a digital drainage system in pneumothorax

Over recent years there has been increasing usage of digital systems within cardiothoracic surgery to quantify air leaks and aid in clinical decision-making regarding the removal of chest drains postoperatively. The literature suggests improved agreement on timing of removal of chest drains and a reduced length of stay of patients. It could be that such devices could be useful tools for the clinician managing cases of pneumothorax.

Delta opioid receptors mediate glucose uptake in skeletal muscles of lean and obese-diabetic (ob/ob) mice

Specific binding sites for [125I]beta-endorphin and the delta1-opioid [3H][D-pen(2), D-pen(5)]enkephalin (DPDPE) were quantified using autoradiography in soleus and extensor digitorum longus (EDL) muscles of lean and obese-diabetic (ob/ob) mice. The density of binding was significantly higher in obese-diabetic than lean mice. The uptake of 2-deoxy-D-[1-3H]deoxyglucose, a nonmetabolized glucose analogue, into isolated soleus and EDL muscles was stimulated by beta-endorphin, beta-endorphin 1-27, and DPDPE, but not by the delta2-opioid deltorphin II. Both beta-endorphin and DPDPE stimulated deoxyglucose uptake in obese-diabetic mice. Thus, glucose transport in skeletal muscle may be partly mediated via delta1-opioid receptors. The increased receptor density in obese-diabetic mice may be an adaptive response.