Publications by authors named "Kathleen Cummings"

The application of mechanical restraints is a high-risk emergency measure that requires psychiatric intensive care to assure patient safety and expedite release at the earliest opportunity. While current Centers for Medicare & Medicaid Services regulations require trained staff to continuously observe restrained individuals, assessment by a registered nurse is required only once an hour. The experience of an acute psychiatric hospital demonstrates that more frequent registered nurse assessments can decrease duration of mechanical restraint episodes.

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Direct care staff struggle with the decision of when to physically intervene with patients. There is a widely held belief that they are expected to place themselves in danger of harm to prevent patients from hurting themselves or others. In this acute mental health care setting, an educational program was developed, using principles of adult and transformational learning, to dispel the idea that getting hurt is part of the job.

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The reduction of seclusion and restraint is a national patient safety focus in psychiatric settings. Studies have demonstrated that multisensory or comfort rooms contribute to higher consumer satisfaction and lower rates of seclusion and restraint in general hospitals. As an alternative to the traditionally uncomfortable time-out room, a comfort room was constructed on an acute adult inpatient unit.

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We wished to determine whether sustained IGF-I production in skeletal muscle increases local IGF binding protein (IGFBP) abundance, thereby mitigating the long-term stimulation of muscle growth by IGF-I. Muscle growth of transgenic mice that overexpress IGF-I in muscle (SIS2) and of wild-type (Wt) mice was compared. At 3, 5, 10, and 20 wk of age, hind-limb muscle weights and IGFBP-3, -4, -5, and -6 mRNA and protein abundances were quantified.

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Growth hormone releasing hormone (GHRH) is known to have multiple anabolic effects and immune-stimulatory effects. Previous studies suggest that treatment with anabolic hormones also has the potential to mitigate the deleterious effects of cancer cachexia in animals. We studied the effects of plasmid-mediated GHRH supplementation on tumor growth and the role of antitumor immune cells with two different human tumor cell lines, NCI-H358 human bronchioalveolar carcinoma and MDA-MB-468 human breast adenocarcinoma, subcutaneously implanted in nude mice.

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Increased transgene expression after plasmid transfer to the skeletal muscle is obtained with electroporation in many species, but optimum conditions are not well defined. Using a plasmid with a muscle-specific secreted embryonic alkaline phosphatase (SEAP) gene, we have optimized the electroporation conditions in a large mammal (pig). Parameters tested included electric field intensity, number of pulses, lag time between plasmid injection and electroporation, and plasmid delivery volume.

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This study was designed to measure the effects of plasmid growth hormone-releasing hormone (GHRH) supplementation on LL-2 (Lewis lung adenocarcinoma) tumor-bearing immunocompetent mice. Male and female mice (n = 20/group/experiment) received 2.5 x 10(6) LL-2 cells in the left flank.

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Previous studies from our laboratory have demonstrated that administration of a myogenic plasmid that encodes a protease-resistant growth hormone-releasing hormone (HV-GHRH) to pregnant rat dams augmented long-term growth in first-generation progeny. In the present study, gilts were injected intra-muscularly at day 85 of gestation with 0, 0.1, 0.

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Electroporation has been shown to significantly increase plasmid transfer to the skeletal muscle, but this procedure is also implicated in muscle damage. We are reporting a highly efficient in vivo transfer of a plasmid formulated with poly-(L-glutamate) (PLG) into murine, canine and porcine muscle fibers using electric pulses of low field intensity. In mice and pigs, the use of secreted embryonic alkaline phosphatase (SEAP) as the indicator gene caused increased PLG expression by 2-3 fold compared to naked plasmid; while delivery of a PLG-plasmid formulation to dogs showed a 10-fold increase in serum SEAP levels compared to plasmid alone.

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Cachexia is a common manifestation of late stage malignancy and is characterized by anemia, anorexia, muscle wasting, loss of adipose tissue, and fatigue. Although cachexia is disabling and can diminish the life expectancy of cancer patients, there are still no effective therapies for this condition. We have examined the feasibility of using a myogenic plasmid to express growth hormone-releasing hormone (GHRH) in severely debilitated companion dogs with naturally occurring tumors.

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The im electroporated injection of a protease-resistant GH-releasing hormone cDNA into rat dams at 16 d gestation resulted in enhanced long-term growth of the F(1) offspring. The offspring were significantly heavier by 2 wk of age, and the difference was sustained to 10 wk of age. Consistent with their augmented growth, the plasma IGF-I concentration of the F(1) progeny was increased significantly.

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