Analytical, Diagnostic and Therapeutic Techniques and Equipment Commons^™

Detection Of Folate Receptor From Fr+ Cancer Cells, Darpan Patel

All Capstone Projects

The aim was to detect cancer cells by using folate–PEG-Biotin probe with fluorescently labeled streptavidin for targeted drug delivery of anti-cancer drugs and diagnose cancer cells. Folate-PEG-Biotin (synthesized by Dr. Henne and Mr.Rohan Patel) was purified by HighPeformanceLiquidChromatography (HPLC) analysis and with the help of Liquid Chromatography/Mass Spectrometry (LC/MS) its identity was confirmed. Folate is a basic composition of cell metabolism in both synthesis of DNA and proteins. Growing cancer cells require high level of folic acid. Folate Receptor-α (FR-α) is a membrane bound protein having high affinity for folic acid and serves to transport of folate into cells. Poly …

Two-Photon-Excited Tryptophan Fluorescence Microscopy For Leukocytes And Cancer Cells Imaging, Jesus A. Valdez^, Chunqiang Li*

COURI Symposium Abstracts, Spring 2011

Cancer screening and early diagnosis is an important yet controversial issue due to the safety and practicality of methods used. Our objective is to study the efficiency of an in vivo two-photon microscope developed in our laboratories to monitor cell inflammation. First, leukocytes were separated by subpopulation.  The tryptophan fluorescence intensity level of each type of leukocyte was then quantified with two-photon microscopy, in their naïve and inflamed states, respectively. Finally the tryptophan fluorescence intensity of multiple myeloma cells was quantified and correlated to the resulting images. The cancerous tissue auto-fluorescence from NADH and FAD was also recorded as a …

Neuromagnetic Measures Of Word Processing In Bilinguals And Monolinguals, Yingying Wang, Jing Xiang, Jennifer Vannest, Tom Holroyd, Daria Narmoneva, Paul Horn, Yinhong Liu, Douglas Rose, Ton Degrauw, Scott Holland

Center for Brain, Biology, and Behavior: Faculty Publications

Objective: This study aimed to use magnetoencephalography (MEG) to examine the question of whether Mandarin-English bilingual speakers recruit the same cortical areas or develop distinct language-specific networks without overlaps for word processing.

Methods: Eight healthy Mandarin-English bilingual adults and eight healthy English monolingual adults were scanned while single-word paradigms were audio-visually presented.

Results: Our results showed significantly stronger beta-band power suppression in the right inferior parietal lobe (IPL) covering the supramarginal gyrus (BA 40) and angular gyrus (BA 39) for bilinguals when processing Mandarin versus English. Moreover, there were no significant differences between bilinguals and monolinguals in the left inferior …

Sleep Assessments In Healthy School-Aged Children Using Actigraphy: Concordance With Polysomnography, Karen Spruyt, David Gozal, Ehab Dayyat, Adrienne Roman, Dennis L. Molfese

Center for Brain, Biology, and Behavior: Faculty Publications

Actigraphic recordings (ACT) are widely used in school children as a less intrusive and more extended approach to evaluation of sleep problems. However, critical assessment of the validity and reliability of ACT against overnight polysomnography (NPSG) are unavailable. Thus, we explored the degree of concordance between NPSG and ACT in school-aged children to delineate potential ACT boundaries when interpreting pediatric sleep. Non-dominant wrist ACT was simultaneously recorded with NPSG in 149 healthy school-aged children (4.1 to 8.8 years old, 41.7% boys and 80.4% Caucasian) recruited from the community. Analyses were limited to the Actiware (MiniMitter-64) calculated parameters originating from 1-min …

Sleep Duration, Sleep Regularity, Body Weight, And Metabolic Homeostasis In School-Aged Children, Karen Spruyt, Dennis L. Molfese, David Gozal

Center for Brain, Biology, and Behavior: Faculty Publications

OBJECTIVE: The goal was to explore the effects of duration and regularity of sleep schedules on BMI and the impact on metabolic regulation in children.

METHODS: Sleep patterns of 308 community-recruited children 4 to 10 years of age were assessed with wrist actigraphs for 1 week in a cross-sectional study, along with BMI assessment. Fasting morning plasma levels of glucose, insulin, lipids, and high-sensitivity C-reactive protein also were measured for a subsample.

RESULTS: Children slept 8 hours per night, on average, regardless of their weight categorization. A nonlinear trend between sleep and weight emerged. For obese children, …

Laser Etched Pmma Microfluidic Chip Design And Manufacture With Applications In Capillary Zone Electrophoresis, Evan Allen Barbre

Master's Theses

This thesis encompasses a feasibility study of using low-cost materials to manufacture microfluidic chips that can perform the same functions as chips manufactured using traditional methods within an acceptable range of efficiency of chips created with more exotic methods and materials. The major parts of the project are the selection and characterization of the fabrication methods for creating the channels for fluid flow, the methods for sealing the channels to create a usable chip and the electrophoretic separations of carboxylated microspheres of different potentials. In this work we seek to answer the question if laser-etched PMMA microfluidic chips are comparable …

Unifying The Mathematical Modeling Of In Vivo And In Vitro Microdialysis, Peter M. Bungay, Rachita K. Sumbria, Ulrich Bickel

Pharmacy Faculty Articles and Research

A unifying approach is presented for developing mathematical models of microdialysis that are applicable to both in vitro and in vivo situations. Previous models for cylindrical probes have been limited by accommodating analyte diffusion through the surrounding medium in the radial direction only, i.e., perpendicular to the probe axis, or by incomplete incorporation of diffusion in the axial direction. Both radial and axial diffusion are included in the present work by employing two-dimensional finite element analysis. As in previous models, the nondimensional clearance modulus (Θ) represents the degree to which analyte clearance from the external medium influences diffusion through the …

Dietary Interventions Against Mammary Glands And Prostate Cancers, Juliana Adedayo Akinsete

Theses, Dissertations and Capstones

Dietary components modulate normal cellular functions and, in cancer cells, alter processes that lead to cancer and/or its progression. The change in the patterns of human food production and consumption over time has contributed to increasing risk for diseases including cancer. Omega-3 and omega-6 fatty acids are classes of essential polyunsaturated fatty acids in the human diet and are required for normal growth and development. Omega-3 and omega-6 fats are thought to be required in the ratio of 1:1 to 1:4 on which humans are thought to have evolved. However, the Western diet has greatly shifted from this ratio. The …

Knee Range Of Motion: Reliability And Agreement Of 3 Measurement Methods, Paul G. Peters, Michael A. Herbenick, Philip A. Anloague, Ronald J. Markert, L. Joseph Rubino

Physical Therapy Faculty Publications

We conducted a study to compare 3 methods of measuring knee range of motion: visual estimation by physicians, hand goniometry by physical therapists, and radiographic goniometry. We hypothesized that reliability would be high within and across all techniques. We found intrarater and interrater reliability to be satisfactory for visual estimation, hand goniometry, and radiographic goniometry. Interrater reliability across methods did not agree satisfactorily. Between-methods differences in estimating knee range of motion may result from variations in technique among physicians and physical therapists.

A Comparison Of Two Pelvic Floor Muscle Training Programs In Females With Stress Urinary Incontinence: A Pilot Study, Betsy Donahoe-Fillmore, Wendy Chorny, C. Jayne Brahler, Ashley Ingley, Jennifer Kennedy, Valerie Osterfeld

Physical Therapy Faculty Publications

Background: Stress urinary incontinence (SUI) is a condition affecting millions of Americans. Few studies have assessed the benefits of different exercises involved in pelvic floor muscle training (PFMT). Purposte: The purpose of this study was to compare the effects of a traditional PFMT program to an assisted pelvic floor muscle training (APFMT) program that included contraction of hip musculature.

Investigating The Associations Between Core Strength, Postural Control And Fine Motor Performance In Children, Rachel Burnett, Nicole Cornett, Gina Rekart, Betsy Donahoe-Fillmore, C. Jayne Brahler, Susan Aebker, Megan Kreill

Physical Therapy Faculty Publications

Study design: Quantitative design including statistical analysis.

Objectives: The objective of this study was to determine if there is an association between core strength, postural control, fine motor precision and integration, specifically in typical children in the first and third grades, ages 6-10. The secondary purpose of this study was to determine if there was an association between BMI and fine and gross motor ability in this same population.

Background: The relationship between core strength, postural control and fine motor skills in children is not well understood. The assumption that trunk stability and control are necessary for the maturation of …

Is Thrombolytic Therapy Safe When Used To Treat Elderly Patients?, Daniel Yaeger

The Science Journal of the Lander College of Arts and Sciences

Recently, research has been conducted to determine if thrombolytic therapy works to dissolve clots and if it is a safe treatment option. The specific purpose of this study is to determine if thrombolytic therapy is safe for use in the elderly. This study was conducted by reviewing the relevant literature that has been published from the time that research began to test the usefulness of thrombolytic therapy. Numerous journals were examined to ensure impartiality and emerge with an unbiased conclusion. The journals were discovered using PubMed article finder, using Google as a search engine, and by scrutinizing relevant references found …

Photosensitizer Drug Delivery Via An Optical Fiber, Matibur Zamadar, Goutam Ghosh, Adaic Kapillai Mahendran, Mihaela Minnis, Bonnie I. Kruft, Ashwini Ghogare, David Aebisher, Alexander Greer

Faculty Publications

: An optical fiber has been developed with a maneuverable miniprobe tip that sparges O2 gas and photodetaches pheophorbide (sensitizer) molecules. Singlet oxygen is produced at the probe tip surface which reacts with an alkene spacer group releasing sensitizer upon fragmentation of a dioxetane intermediate. Optimal sensitizer photorelease occurred when the probe tip was loaded with 60 nmol sensitizer, where crowding of the pheophorbide molecules and self-quenching were kept to a minimum. The fiber optic tip delivered pheophorbide molecules and singlet oxygen to discrete locations. The 60 nmol sensitizer was delivered into petrolatum; however, sensitizer release was less efficient in …

Sleep Estimates In Children: Parental Versus Actigraphic Assessments, Ehab A. Dayyat, Karen Spruyt, Dennis L. Molfese, David Gozal

Center for Brain, Biology, and Behavior: Faculty Publications

Background: In the context of increasing awareness about the need for assessment of sleep duration in community and clinical settings, the use of questionnaire-based tools may be fraught with reporter bias. Conversely, actigraphy provides objective assessments of sleep patterns. In this study, we aimed to determine the potential discrepancies between parentally-based sleep logs and concurrent actigraphic recordings in children over a one-week period.

Methods: We studied 327 children aged 3–10 years, and included otherwise healthy, nonsnoring children from the community who were reported by their parents to be nonsnorers and had normal polysomnography, habitually-snoring children from the community …

Minimal Information For Neural Electromagnetic Ontologies (Minemo): A Standards-Compliant Method For Analysis And Integration Of Event-Related Potentials (Erp) Data, Gwen Frishkoff, Jason Sydes, Kurt Mueller, Tim Curran, John F. Connolly, Kerry Kilborn, Dennis L. Molfese, Charles Perfetti, Allen D. Malony

Center for Brain, Biology, and Behavior: Faculty Publications

We present MINEMO (Minimal Information for Neural ElectroMagnetic Ontologies), a checklist for the description of event-related potentials (ERP) studies. MINEMO extends MINI (Minimal Information for Neuroscience Investigations)to the ERP domain. Checklist terms are explicated in NEMO, a formal ontology that is designed to support ERP data sharing and integration. MINEMO is also linked to an ERP database and web application (the NEMO portal). Users upload their data and enter MINEMO information through the portal. The database then stores these entries in RDF (Resource Description Framework), along with summary metrics, i.e., spatial and temporal metadata. Together these spatial, temporal, and functional …

Acute Renal Failure Requiring Renal Replacement Therapy In The Intensive Care Unit: Impact On Prognostic Assessment For Shared Decision-Making, Robert F. Johnson Jr., Jillian Gustin

Peer Reviewed Articles

A 69 year-old female was receiving renal replacement therapy (RRT) for acute renal failure (ARF) in an intensive care unit (ICU). Consultation was requested from the palliative medicine service to facilitate a shared decision-making process regarding goals of care.

Clinician responsibility in shared decision-making includes the formulation and expression of a prognostic assessment providing the necessary perspective for a spokesperson to match patient values with treatment options. For this patient, ARF requiring RRT in the ICU was used as a focal point for preparing a prognostic assessment. A prognostic assessment should include the outcomes of most importance to a discussion …

Alteplase: The Clot Buster, Mayer Goldberg

The Science Journal of the Lander College of Arts and Sciences

The following is an excerpt from the introduction of this article: The human body is defined by many complex and inconsistent characteristics. For example, the body forms blood clots in traumatic events, but blood clots are likewise associated with hazardous or fatal conditions. Platelets are small cells, derived from the precursor megakaryocytes, which are responsible for blood clotting to prevent bleeding from a ruptured blood vessel. Platelets fasten to each other and release a coagulation factor that solidifies around the ruptured area to prevent blood loss. A subordinate quantity of platelets can result in excessive bleeding. However, high platelet numbers …

Minimal Vs Extensive Esophageal Mobilization During Laparoscopic Fundoplication: A Prospective Randomized Trial., Shawn D. St Peter, Douglas C. Barnhart, Daniel J. Ostlie, Kuojen Tsao, Charles M. Leys, Susan W. Sharp, Donna Bartle, Tracey Morgan, Carroll M. Harmon, Keith E. Georgeson, G W. Holcomb Iii

Manuscripts, Articles, Book Chapters and Other Papers

PURPOSE: Laparoscopic Nissen fundoplication has been traditionally performed with extensive esophageal dissection to create 2 to 3 cm of intraabdominal esophagus. Retrospective data have suggested that minimal esophageal mobilization may reduce the risk of postoperative herniation of the wrap into the lower mediastinum. To compare complete esophageal dissection to leaving the phrenoesophageal attachment intact, we conducted a 2-center, prospective, randomized trial.

METHODS: After obtaining permission/assent, patients were randomized to circumferential division of the phrenoesophageal attachments (MAX) or minimal mobilization with no violation of the phrenoesophageal membrane (MIN). A contrast study was performed at 1 year. The primary outcome variable was …

Comparative Study Of Long-And Short-Pulsed Electric Fields For Treating Melanoma In An In Vivo Mouse Model, Xinhua Chen, Xinmei Chen, Karl H. Schoenbach, Shusen Zheng, R. James Swanson

Bioelectrics Publications

A mouse melanoma model was set up with green fluorescent protein (GFP) expression in vivo. With the same energy, long- (1 ms) and short- (300 ns) pulsed electric fields were delivered to two melanomas injected into the same mouse. The tumor growth and green fluorescence were followed up to compare the different treatment efficacy of long and short pulses. After two days post treatment, short pulse-treated tumors showed a significantly lower tumor volume compared with long pulse-treated tumors (n=8, p

Small Intestine Submucosa Effects On Long Term Viability Of Transplanted Pancreatic Cells, Joshua P. Pregnar

PCOM Biomedical Studies Student Scholarship

The biologic functions carried out by the pancreas are, without a doubt, essential to life. This can be demonstrated by the fact that some diabetics require insulin supplementation and those suffering from other diseases of the pancreas, such as pancreatitis, or who have undergone pancreatectomy require supplementation with exocrine enzymes. As would be expected, we are constantly searching for more longterm, patient oriented solutions to chronic health conditions. As such, there has been a gradual transition from daily insulin injections to insulin pumps which allow for easier and more closely controlled glucose levels. Work has also been done regarding various …