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Biomedical subjects

B Michaels

Publications and source records attributed to B Michaels.

4 recordsLinked to original sources

Calcitonin gene-related peptide increases microcirculation after mechanically induced ischemia in an experimental island flap.

Vasoconstriction, as a result of mechanical manipulation of blood vessels during microsurgery, may produce a decrease in blood supply and endanger flap viability. A study was undertaken to determine the effects of the topical vasodilator calcitonin gene-related peptide on the microcirculation of flaps after mechanically induced ischemia. A neurovascular island flap based on the superficial epigastric vessels was raised in 42 rats. Blood cell flux in the flap was recorded continuously with a laser Doppler flux meter. The feeding artery was pinched to induce vasospasm, and different concentrations of calcitonin gene-related peptide (10(-7), 10(-8), 10(-9), 10(-10) mol) or a control of sodium chloride 0.9% was applied topically to relieve the ischemia. Results showed that calcitonin gene-related peptide at a concentration of 10(-7) mol significantly shortened the time to reach 50% of the original blood cell flux values (270 +/- 123 seconds) and significantly increased the number of flaps in which the blood cell flux values were restored to prestress levels within 30 minutes. The data support the conclusion that, in this model, topical calcitonin gene-related peptide at the concentration of 10(-7) mol was effective in promoting recovery of the microcirculation after mechanically induced ischemia, without the adverse effects associated with other commonly used vasodilators.

Animals↗

Co-dependency. Assessment and recovery.

Co-dependency involves a particular system of thinking, feeling, and behaving toward ourselves and others that often causes emotional pain and leads to low self-esteem. Co-dependent behaviors are self-destructive. A process of recovery from these self-defeating behaviors is discussed.

Dependent Personality Disorder↗

Flexible management: strategies for the changing workforce.

In the year 2000, managers will supervise employees whose career aspirations differ drastically from their own. Success not only will be measured by salary and status, but will be tied to a person's family relationships. Twenty years ago, most managers were not concerned with the family problems of their subordinates. This notion is now out of date. The family responsibilities of staff have a direct effect on the company's productivity. An employee who is worried about the care of an elderly parent, or concerned with the safety of a preteen home alone after school, is unlikely to give full attention to the task at hand. Flexible management is a cost-effective way of dealing with these issues. Managers who have the skills to be flexible and the strategies to work with employees for a win-win situation will reduce distractions and tardiness and gain productivity and loyalty.

Career Mobility↗