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Articles 1 - 10 of 10
Full-Text Articles in Medical Specialties
Nanosecond Pulsed Electric Fields Induce A Mitochondria-Independent Apoptosis In B16f10 Melanoma Cells In Vitro, Wentia Elissa Ford
Nanosecond Pulsed Electric Fields Induce A Mitochondria-Independent Apoptosis In B16f10 Melanoma Cells In Vitro, Wentia Elissa Ford
Theses and Dissertations in Biomedical Sciences
Nanosecond pulsed electric fields (nsPEFs) are ultra-short pulses that induce direct electric field and biological effects that initiate apoptosis. Here the application of ten 300ns pulses ranging in electric fields from 12kV/cm-60kV/cm was administered to determine the effects on B16F10 melanoma cells evaluated by in vitro studies. Initial application of nsPEFs demonstrated apoptosis induction in an electric field- and pulse number-dependent manner measured by caspase activation that correlated with decrease in cell viability 24hr post pulse. In addition caspase activity was shown to be independent of calcium mobilization though ions may play a part in other aspects of apoptosis. The …
In Vivo Murine Melanoma Tumor Responses To Nanosecond Pulsed Electric Field Treatment, Xinhua Chen
In Vivo Murine Melanoma Tumor Responses To Nanosecond Pulsed Electric Field Treatment, Xinhua Chen
Theses and Dissertations in Biomedical Sciences
High intensity nanosecond pulsed electric fields (nsPEF) were applied to melanoma tumors to observe functional and structural biological changes and to investigate the possible molecular mechanisms responsible. An animal model was set up by injecting B16F10 mouse melanoma cells into SKH-1 mice. A treatment (Tx) of 100 pulses: 300 nanosecond duration; 40 kV/cm field strength; at 0.5 Hz rate were delivered to melanoma tumors in 120 mice. The nsPEF Txcaused tumor self-destruction with sharply decreased cell volumes and shrunken nuclei. The apoptotic biochemical tests confirmed nsPEF Tx induced apoptosis in a time-dependent manner. Examination of gross vessel and micro-vessel density …
Cannabinoids: A Novel Treatment Strategy For Retinal Neurodegenerative Disorders, Sandeep Samudre
Cannabinoids: A Novel Treatment Strategy For Retinal Neurodegenerative Disorders, Sandeep Samudre
Theses and Dissertations in Biomedical Sciences
Synthetic and naturally occurring cannabinoids are known to decrease intraocular pressure (IOP). Glaucomatous damage to the retina and optic nerve progresses even after therapy to maintain normal intraocular pressure (IOP). Topical application of cannabinoids decreases IOP while not affecting blood pressure or heart rate. Based upon their effects on other tissues, we hypothesize that these analogs reduce IOP and may also confer direct neuroprotective effects on the retina, possibly via CB1 and/or CB2 receptors. The purpose of this study is to determine if the newly synthesized CB agonists, lipid soluble O-1812 (CB 1), and water soluble O-2545 (CB 1
The …
The Application Of Innovative High-Throughput Techniques To Serum Biomarker Discovery, Izabela Debkiewicz Karbassi
The Application Of Innovative High-Throughput Techniques To Serum Biomarker Discovery, Izabela Debkiewicz Karbassi
Theses and Dissertations in Biomedical Sciences
Time-of-flight mass spectrometry continues to evolve as a promising technique for serum protein expression profiling and biomarker discovery. As seen in our initial SELDI-TOF MS and MALDI-TOF MS profiling study of serum for the assessment of breast cancer risk, many profiling strategies typically employ single chemical affinity beads or surfaces to decrease sample complexity of dynamic fluids like serum. However, most proteins, captured on a particular surface or bead, are not resolved in the lower mass range where mass spectrometers are most effective. To this end we have designed an expression profiling workflow that utilizes immobilized trypsin paramagnetic beads in …
Longitudinal Association Of Sleep-Disordered Breathing And Nondipping Of Nocturnal Blood Pressure In The Wisconsin Sleep Cohort Study, Khin Mae Hla, Terry Young, Laurel Finn, Paul E. Peppard, Mariana Szklo-Coxe, Maryan Stubbs
Longitudinal Association Of Sleep-Disordered Breathing And Nondipping Of Nocturnal Blood Pressure In The Wisconsin Sleep Cohort Study, Khin Mae Hla, Terry Young, Laurel Finn, Paul E. Peppard, Mariana Szklo-Coxe, Maryan Stubbs
Community & Environmental Health Faculty Publications
Study objectives: The association of sleep-disordered breathing (SDB) and blunting of normal nocturnal lowering of blood pressure (BP) (nondipping) has only been examined cross-sectionally. The purpose of this study is to investigate whether SDB is prospectively associated with nondipping.
Methods: The longitudinal association between SDB and incident nondipping was examined in a subsample of 328 adults enrolled in the Wisconsin Sleep Cohort Study who completed 2 or more 24-hour ambulatory BP studies over an average of 7.2 years of follow-up. SDB identified by baseline in-laboratory polysomnography was defined by apnea-hypopnea index (AHI) categories. Systolic and diastolic nondipping was defined by …
An Efficient Algorithm For Biomarker Identification, Jiang Li, Rick Mckenzie, Lisa Cazares, Richard Drake, John Semmens
An Efficient Algorithm For Biomarker Identification, Jiang Li, Rick Mckenzie, Lisa Cazares, Richard Drake, John Semmens
Electrical & Computer Engineering Faculty Publications
No abstract provided.
Continence Care: The Need For Creativity And Innovation, Karen A. Karlowicz
Continence Care: The Need For Creativity And Innovation, Karen A. Karlowicz
Nursing Faculty Publications
(First paragraph) In April 2007, I attended a conference quite different from anything I had previously experienced. The conference, Innovating for Continence: The Engineering Challenge, was hosted by the Simon Foundation for Continence. As the title implies, this was not your usual conference about the diagnosis, treatment, and management of urinary incontinence. Rather, it was a conference dedicated to exploring technological advances in continence care. The central question throughout this two-and-a-half day event was, "What can be done to simulate continence technology to ensure the most effective management for persons who suffer with this problem?"
Maldi Mass Spectrometry Imaging For The Discovery Of Prostate Carcinoma Biomarkers, Lisa Harris Cazares
Maldi Mass Spectrometry Imaging For The Discovery Of Prostate Carcinoma Biomarkers, Lisa Harris Cazares
Theses and Dissertations in Biomedical Sciences
The elucidation of new biological markers of prostate cancer (PCa) should aid in the detection, and prognosis of this disease. Diagnostic decision making by pathologists in prostate cancer is highly dependent on tissue morphology. The ability to localize disease-specific molecular changes in tissue would help improve this critical pathology decision making process. Direct profiling of proteins in tissue sections using MALDI imaging mass spectrometry (MALDI-IMS) has the power to link molecular detail to morphological and pathological changes, enhancing the ability to identify candidates for new specific biomarkers. However, critical questions remain regarding the integration of this technique with clinical decision …
The Increasing Number Of Clinical Items Addressed During The Time Of Adult Primary Care Visits, Elmer D. Abbo, Qi Zhang, Martin Zelder, Elbert S. Huang
The Increasing Number Of Clinical Items Addressed During The Time Of Adult Primary Care Visits, Elmer D. Abbo, Qi Zhang, Martin Zelder, Elbert S. Huang
Community & Environmental Health Faculty Publications
BACKGROUND: Primary care physicians report that there is insufficient time to meet patients' needs during clinical visits, but visit time has increased over the past decade.
OBJECTIVE: To determine whether the number of clinical items addressed during the primary care visit has increased, and if so, whether this has been associated with changes in visit length and the pace of clinical work.
DESIGN: Analysis of non-hospital-based adult primary care visits from 1997 to 2005, as reported in the National Ambulatory Medical Care Survey.
PARTICIPANTS: A total of 46,431 adult primary care visits.
MEASUREMENTS: We assessed changes over time for …
Dependence In Prestroke Mobility Predicts Adverse Outcomes Among Patients With Acute Ischemic Stroke, Mary I. Dallas, Shari Rone-Adams, John L. Echternach, Lawrence M. Bass, Dawn M. Bravata
Dependence In Prestroke Mobility Predicts Adverse Outcomes Among Patients With Acute Ischemic Stroke, Mary I. Dallas, Shari Rone-Adams, John L. Echternach, Lawrence M. Bass, Dawn M. Bravata
Rehabilitation Sciences Faculty Publications
Background and Purpose - Stroke survivors are commonly dependent in activities of daily living; however, the relation between prestroke mobility impairment and poststroke outcomes is poorly understood. The primary objective of this study was to evaluate the association between prestroke mobility impairment and 4 poststroke outcomes. The secondary objective was to evaluate the association between prestroke mobility impairment and a plan for physical therapy.
Methods - This was a secondary analysis of the National Stroke Project data, a retrospective cohort of Medicare beneficiaries who were hospitalized with an acute ischemic stroke (1998 to 2001). Logistic-regression modeling was used to examine …