Translational Medical Research Commons^™

The Presence Of Gc-C In Extracellular Vesicles Secreted By Colorectal Cancer Cells, Alexandre Martinez, Adam E. Snook

Phase 1

Background: Guanylyl Cyclase C (GC-C) is a membrane-bound protein found on intestinal epithelial cells involved in the activation of CFTR. This protein has previously been involved in the development of colorectal cancer.

Extracellular vesicles (EVs) are bilayered vesicles of varying size (30 to 1,000 + nm in diameter) that believed to be secreted by all cells in the human body. In the past decade, EVs have garnered attention due to their impact in the field of oncology, where they have been shown to potentially serve as biomarkers for various cancers.

In this study, we looked at the EVs secreted …

Patient And Renal Outcomes Of Posttransplant Lymphoproliferative Disorder Following Solid Organ Transplantations - A Single Center Experience, Kashka Mallari, Goni Katz-Greenberg, Maria Martinez Cantarin

Phase 1

Introduction: Post-transplant Proliferative Disorder (PTLD) is a significant complication after solid organ transplantation (SOT). Major risk factors that contribute to the development of PTLD include Epstein-Barr Virus (EBV) infection and degree of immunosuppression. Despite novel therapies, the 5-year survival rate of PTLD only improved from 40% to 50% over the years. The reported 5-year survival rate of PTLD also remains significantly lower compared to around 90% in other malignancies such as breast and colon cancer. In our center, we hypothesize better transplant outcomes compared to those reported in preceding literatures.

Methods: We retrospectively reviewed the electronic medical records of …

Statistics Of Tumor Micro-Environment, Brenton Maisel, Inna Chervoneva

Phase 1

Introduction: Immune cells play a prominent role in keeping tumors suppressed, but how the distribution of these immune cells within a tumor’s microenvironment remains poorly understood. The long-term goal of this project is to study how statistical spatial distributions of different immune cells is associated with clinical outcome. The first objective is developing an algorithm for identifying different types of immune cells.

Methods: The data motivating this project includes spatial localization information (x-y coordinates) and expression levels of immune cell CD markers quantified by immunofluorescence immunohistochemistry (IF-IHC) in ~1,500 cases of invasive breast cancer. Using expression levels of CD markers …

Ain To Ulnar Motor Nerve Transfer Meta Analysis, Melanie Luikart, Asif M. Ilyas, Md

Phase 1

Background: There are currently few comprehensive studies of end-to-end and “supercharged” reverse end-to-side (SETS) anterior interosseous nerve (AIN) to ulnar nerve transfers for treatment of ulnar neuropathy. The authors performed a literature review existing published literature to evaluate the indications for, and utility of, AIN-ulnar nerve transfer as a treatment method and to inform future treatment decisions.

Methods: A literature review was performed based on the following inclusion criteria: inclusion of anterior interosseous nerve or AIN, ulnar nerve or ulnar motor nerve, transfer or nerve transfer, and outcome, motor, clinical, ulnar neuropathies, ulnar nerve paralysis, treatment or function. Exclusion criteria …

Opioid Tolerance Influences Outcomes After Lumbar Fusion In Patients With Degenerative Pathology, Noah Levy, Max Detweiler, Dhruv K.C. Goyal, Ariana Reyes, Alexander R. Vaccaro

Phase 1

Introduction: Extended opioid use prior to surgery has been implicated in poorer postoperative outcomes. However, it remains unclear if there is a significant difference in postoperative outcomes among preoperative opioid-naïve and opioid-tolerant patients who undergo lumbar spinal fusion. The purpose of this study was to determine the effect of preoperative opioid use on patient-reported outcome measures in patients undergoing lumbar spinal fusion.

Methods: This retrospective cohort analysis identified 260 patients who underwent lumbar spinal fusion at a high-volume, single institution. There were two cohorts: patients who were opioid-naïve (defined as total opioid consumption of ≤ 7 days in …

Outcomes Of Formalized Physical Therapy Vs. Self-Directed Home Exercise, Thomas Lee, Daniel Bowles

Phase 1

Introduction: After a formal microdiscectomy or 1-2 level anterior cervical discectomy and fusion (ACDF) there exists a lack of consensus on effectiveness of postoperative formal physical therapy (PT) rehabilitation efficacy. We seek to determine whether home PT is equivalent to standard PT using patient reported outcomes measures (PROMs) after the aforementioned operations.

Methods: This study is a prospective single center cohort study. The inclusion criteria is patients undergoing a microdiscectomy or ACDF operation excluding patients under 18, infection, trauma, tumor, or revision. Outcomes are measured using PROMs specific for each operation.

Results: Preliminary data suggests that post-operative …

Spectrum Of Renal Biopsy Findings In Trident Cohort, Casey Jackson, Shira Blady, Shatakshee Chatarjee, Phd, Matthew Palmer, Md, Phd, Katalin Susztak, Md, Phd

Phase 1

Introduction: Diabetic kidney disease is the most common cause of chronic end stage renal failure in the USA. Kidney biopsy is the gold standard diagnostic criteria; however, it is an invasive procedure; not everyone undergoes diagnostic biopsy. The relationship between histological and clinical parameters and prognosis in DKD is incompletely understood. TRIDENT, (Transformative research in diabetic nephropathy) plans to enroll 400 diabetic subjects undergoing clinically indicated renal biopsies and performs multi-omics characterization of subjects to identify pathways associated with kidney function decline. Genetic studies indicated that podocytes influence albuminuria and diabetic kidney disease development. We seek to understand whether …

Outcomes In Knot Vs Knotless Surgery In Labrum Tears, Zachary Howell, Benjamin Hendy, Md

Phase 1

A Bankart lesion is a tear of the anterior and inferior glenoid labrum. The primary method of repairing this lesion is to sew the detached part back to the joint, however there is a relatively newer method of doing so that does not involve tying a knot in the joint which may cause less joint irritation. The question our research project attempted to answer was: How do the long-term outcomes associated with knotless Bankart labrum repairs compare with the knot repairs? A retrospective cohort study was done with Rothman Institute Bankart lesion patients from 2010-2016. Data was gathered over phone …

Is Facet Joint Distraction A Cause Of Postoperative Axial Neck Pain After Acdf Surgery?, Nathan Houlihan, Srikanth N. Divi, Md, Dhruv K.C. Goyal, John J. Mangan, Md, Justin D. Stull, Md, Matthew S. Galetta, Jeffrey A. Rihn, Mark F. Kurd, Md, D. Greg Anderson, Md, Alan S. Hilibrand, Md, Alexander R. Vaccaro, Md, Phd, Mba, Christopher K. Kepler, Md, Mba, Gregory D. Schroeder, Md, Joseph K. Lee, Md

Phase 1

Introduction: Intervertebral distraction in anterior cervical discectomy and fusion (ACDF) has been postulated to injure the degenerative facet joints posteriorly and increase postoperative pain and disability. This study aims to determine if there is a correlation between the amount of facet distraction and postoperative patient reported outcomes.

Methods: A retrospective cohort analysis of patients undergoing ACDF for degenerative pathologies was performed. Each patient received lateral cervical spine x-rays at the immediate postoperative time point and were split into groups based on the amount of facet distraction measured on these films: Group A: < 1.5 mm; Group B: 1.5-2.0 mm; and Group C: > 2.0 mm. Patients reported outcome measures were obtained …

Evaluating The Migration Rates In Percutaneous Spinal Cord Stimulation Trials, William Hirsch, Nikolaos Mouchtouris, Md, Ashwini Sharan Md

Phase 1

Introduction: Spinal cord stimulation (SCS) provides symptom reduction in patients with chronic low back pain. The most common complication in SCS is percutaneous lead migration from initial placement site. It is our goal to determine whether using skin anchors during trial implantation reduces SCS trial lead migration rates compared to historical controls.

Methods: 197 patients who underwent SCS trial placement at Thomas Jefferson University Hospital between 2015 and 2018 were considered for this study. Complete data including device impedance measurements and pre and post trial x-rays was collected on 12 historical control patients and 19 patients with leads secured using …

The Use Of Cementless Components Does Not Significantly Increase Procedural Costs In Total Knee Arthroplasty, Samantha Harrer, Michael Yayac, Md, William J. Hozack, Md, Javad Parvizi, Md, Frcs, P. Maxwell Courtney, Md

Phase 1

Introduction: Modern cementless total knee arthroplasty (TKA) designs have shown promising early clinical success; however, concerns exist regarding the higher cost of the cementless implants. The purpose of this study is to evaluate the total facility cost of cementless vs traditional cemented TKA along with the effect of cementless fixation on short-term outcomes.

Methods: We reviewed a consecutive series of patients between 2015 and 2017 who underwent either cementless or cemented primary TKA. Itemized facility costs were calculated for every procedure using a time-driven activity-based costing algorithm. Controlling for demographic variables and medical comorbidities, we performed a multivariate analysis …

Improving The Accuracy Of Dat Scan Interpretation: A Retrospective Study To Identify Variables That Standardize The Review Of Dat Scans For Idiopathic Parkinson’S Disease, Hannah Hackbart, Andrew B. Newberg, Md, Tsao-Wei Liang, Md

Phase 1

Introduction: Until recently, the diagnosis of Parkinson’s disease (PD) has been based solely on clinical observation. The DaT scan is a tool that allows clinicians to visualize areas of neurodegeneration in PD and can help guide diagnosis. However, there is a discordance between clinical judgement and interpretation of DaT scans. In this study, we aim to improve the utility of DaT scans in the diagnosis of PD by identifying factors that can lead to a misdiagnosis and determine which image findings predict a clinical syndrome of parkinsonism.

Methods: We will conduct a retrospective chart review to analyze DaT scans of …

Identifying The Prevalence Of Underdiagnosed Obstructive Sleep Apnea (Osa) In The Primary Care Population Via Targeted Screening Measures, Risa Goldberg, Alyssa Givens, Cynthia Cheng, Md, Phd

Phase 1

Introduction: Obstructive sleep apnea (OSA) is a condition with detrimental health consequences, yet over 75% of OSA cases remain undiagnosed in the United States. This study aimed to determine the efficacy of using targeted screening measures to determine the prevalence of undiagnosed OSA in a primary care population.

Methods: This prospective pilot study utilized a primary care population from Thomas Jefferson University’s family medicine department. Participants were selected using three risk criteria for OSA from STOP-BANG identifiable from their EMR records (BMI >35, age over 50, and hypertension). After screening out patients previously diagnosed with OSA, patients were called and …

Investigation Of The Superman Stretch On Posterior Capsule Range Of Motion, Brian Gibbs, Christopher M. Aland, Md, Joshua Hornstein, Md

Phase 1

Introduction: Shoulder pain is a common clinical entity affecting all age groups and can frequently be attributed to pathological internal impingement. A primary contributing factor to labrum tears and internal impingement is posterior capsule tightness. In order to improve range of motion (R.O.M.), prior studies have demonstrated that stretching is an important tool for increasing R.O.M. at many joints. We hypothesized that the superman stretch would lead to greater increases in IR than the traditional sleeper stretch.

Methods: A level II, prospective study in collegiate-level athletes from The College of New Jersey (TCNJ) was performed. Shoulder internal rotation (IR), shoulder …

The Role Of Rassf5 On Cell Growth And Hippo Signaling In Rhabdomyosarcoma, Megan Garver, Lee Helman, Md, Katrina Slemmons, Phd

Phase 1

Introduction: Rhabdomyosarcoma (RMS) is the most common soft tissue sarcoma of childhood. Dysregulation of the Hippo pathway, a signaling cascade that regulates many biological processes, is associated with many human cancers. The goal of my project was to delete RASSF5, a regulator of the Hippo pathway, in RMS cells utilizing CRISPR/Cas9 and then to evaluate how the absence of RASSF5 affects RMS cell growth and Hippo signaling, with and without DNMTi Tx.

Methods: A lipofectamine transfection was performed in two different RMS cell lines, Rh30 & RD, in which two different CRIPSR/Cas9 vectors with RASSF5 guide RNA were introduced. …

Characterizing Patch Test Findings In African American Acd Patients, Vaibhav Garg, Bruce Brod, Anthony Gaspari

Phase 1

Introduction: Allergic Contact Dermatitis (ACD) in African Americans has not been well studied, and there is little information related to differences in patterns of ACD between African Americans and Caucasians. This paper aims to investigate relative differences in patterns of sensitization in African American ACD patients.

Methods: This study is a retrospective descriptive study. Data of ACD patients patch tested from 2009-2019 by Dr. Gaspari and Dr. Brod at TJUH and HUP/UPHS were reviewed. Patch test findings for African American and Caucasian patients were compared. Outcomes such as positive allergens, strength, clinical relevance, patient occupation, and personal product use …

Does Maternal Methadone Dose Correlate With Severity Of Intrauterine Growth Restriction In Infants With Neonatal Abstinence Syndrome?, D. Friedman, J. Smith, M. Lafferty, Z. H. Aghai

Phase 1

Introduction : Previous studies demonstrate a relationship between maternal opioid use during pregnancy and smaller head circumference of infants with neonatal abstinence syndrome (NAS). The goal of this study is to correlate maternal methadone dose and severity of growth restriction in infants with NAS admitted to the neonatal intensive care unit (NICU).

Methods: This is a retrospective analysis of infants (≥35 weeks gestation) exposed to in utero methadone, born between August 2006 and May 2018, and admitted to a Philadelphia NICU for medical therapy for NAS. Growth parameters (birth weight, birth length, and birth head circumference) were compared between infants …

Predictors Of Functional Outcomes Following Operative Treatment Of Acute Achilles Tendon Ruptures, Andrew Fisher, Ryan Rogero, Joseph O'Neil, Md, Daniel Fuchs, Md, Steven Raikin, Md

Phase 1

Introduction: Previous studies involving operative management of Achilles tendon ruptures have attempted to determine if patient factors influence outcomes. No previous study has attempted to identify outcome predictors in patients exclusively undergoing surgical repair. The purpose of this study is to determine if any injury or patient variables were predictive of outcomes following operative management of Achilles ruptures.

Methods: Patient demographics including age, sex, body mass index (BMI), comorbidities (diabetes mellitus, depression, anxiety), mechanism of injury (sports, non-sports), and date of injury were collected. Postoperative notes were reviewed to determine compliance. Patients completed the Foot & Ankle Ability Measure (FAAM)-Activities …

Mechanical Thrombectomy In Acute Ischemic Stroke Patients Greater Than 90 Years Of Age Experience In 26 Patients In A Large Tertiary Care Center: Outcome Comparison With Younger Patients, Nicholas Elmer, Ahmad Sweid, Md, Joshua H. Weinberg, Vivian Xu, Kavya Shivashankar, Tyler D. Alexander, Ms, Jane Khalife, Md, Michael R. Gooch, Md, Nabeel Herial, Md, Nohra Chalouhi, Md, Pascal Jabbour, Md, Robert H. Rosenwasswer Md, Stavropoula Tjoumakaris, Md

Phase 1

Introduction: Several independent randomized control trials have shown the superior efficacy of mechanical thrombectomy for acute ischemic stroke (AIS). However, the elderly has been underrepresented or excluded in these trials. In this study, we investigated the feasibility and safety of mechanical thrombectomy in patients with AIS aged 90 years or greater.

Methods: A retrospective review of patients age 90 years or older presenting with AIS who underwent mechanical thrombectomy between 2010 and 2018.

Results: Of total 453 patients with AIS, 5.74 % (26) were aged 90 or older, and 69.32 % (314) ranged from 60-89 years of age. Of …

The Effects Of Total Intravenous Versus Inhalational Anesthesia On Fluid Balance For Patients Undergoing Pancreaticoduodenectomy, Jaime Eberle-Singh, David Maguire, Md, Harish Lavu, Md

Phase 1

Introduction: Pancreaticoduodenectomy (PD), the most common surgical treatment for pancreatic cancer, is a complex procedure with a morbidity of 45-60%. Recent studies indicate that intraoperative use of total intravenous anesthesia (TIVA) may reduce post-operative complications for PD patients, when compared to inhalational anesthesia (INHA). We hypothesized that patients who receive TIVA may have a more favorable fluid balance, which is known to reduce postoperative complications in PD patients.

Methods: We carried out a retrospective analysis of patients who underwent PD at Thomas Jefferson University Hospital and were administered TIVA or INHA during surgery between April 2017 and January 2019. …

Ethnic Differences In Germline Genetic Testing For Breast Cancer, Kathryn Dent, Rebecca J. Jaslow, Md

Phase 1

Introduction: Ethnic variations in uptake of genetic testing and differences in findings of germline mutations within ethnic groups, are not well understood. The goal of this research is to assess for any such differences or similarities within a genetic counseling and testing program at an urban Cancer Center.

Methods: This is a non-comparative, descriptive epidemiology study assessing individuals with a diagnosis of breast cancer undergoing genetic counseling at the TJUH Sidney Kimmel Cancer Center in Philadelphia between 2014 and 2019. Data were compiled onto Research Electronic Data Capture (REDCAP) and analyzed statistically.

Results: Patients with Breast Cancer (n=1075) were included …

Avoiding Antiplatelet Reversal In Non-Operative Intracranial Hemorrhages: Functional Outcomes Of Guideline-Based Practice, Angelo D'Antonio-Bertagnolli, Lyena Birkenstock, Ariya Mobaraki, Christine Hammer, Md, Syed O. Shah, Md, Jack Jallo, Md, Phd, Courtney Pendleton, Md

Phase 1

Introduction: Intracranial hemorrhage (ICH) is a common, life-threatening neurological pathology in aging patients, many of whom take antiplatelet medications with potential to worsen the hemorrhage. In the event of ICH, Thomas Jefferson University Hospital (TJUH) follows a protocol modeling the 2016 Neurocritical Care Society (NCS) joint guidelines for antiplatelet medication reversal. We analyzed pre- and post-NCS guideline data from TJUH for outcomes of non-operative ICH patients in order to tease out the potential benefits of this protocol.

Methods: This retrospective cohort study took place from January 2016 – Jan. 2018 at a tertiary care center: TJUH. Patients included were …

Plasma Exosome Mir-155-5p As An Independent Prognostic Risk Factor For Mycosis Fungoides, Adam Cohen-Nowak, Neda Nikbakht

Phase 1

Introduction: Mycosis Fungoides (MF) is a rare non-Hodgkin Lymphoma with variable progression that comprises half of all cutaneous T-cell lymphomas (CTCLs). Previous studies have shown higher expression of the micro-RNA miR-155-5p isolated from biopsies of MF tumors compared to early-stage lesions and healthy skin, illustrating the potential for miR-155-5p to serve as a prognostic indicator. Small extracellular vesicles (30-150 nm) called exosomes are known to play a role in cancer signaling and progression by carrying micro-RNAs. However, no studies have measured circulating exosomal miR-155-5p in the blood of patients with MF. We hypothesize that miR-155-5p is expressed higher in …

Comparison Of Home Therapy Vs Formal Outpatient Physical Therapy In Post-Operative Management Of Two-Incision Distal Bicep Tendon Repair, Joseph Botros, John Horneff Iii, Md, Thomas Harper, Brent Page

Phase 1

Background: Distal bicep tendon tears are a relatively uncommon injury, affecting 1.2/ 100,000 persons per year; they can also cause substantial loss in supination and flexion strength. The most common treatment is a double incision distal bicep tendon repair, which involves surgical reinsertion of the bicep tendon onto the radial tuberosity. Following surgery, physicians have traditionally recommended the patient undergo 5-12 weeks of formal outpatient physical therapy. This can be a significant cost and time burden to the patient. Therefore, some physicians have instead opted for home physical therapy, in which the patient is given instructions on exercises to complete …

Oncology Hospital At Home: A Retrospective Chart Review Examining Whether Oncology Patients Placed Under Observation Status By The Ed Could Be Managed In The Home Setting, Mary Blumenfeld, Adam Binder, Md, Nathan Handley, Md

Phase 1

Introduction: Hospital at Home (HaH) programs deliver hospital-level care in the home setting rather than in the traditional inpatient unit. In the US, this model of care has focused on the general medicine population, but no such models for adult oncologic care have been described in the literature to date. The current study seeks to identify whether certain diagnoses of patients with cancer admitted to observation status are predictive for early discharge and potentially model diagnoses on which to build a HaH program.

Methods: Electronic medical records were reviewed for 130 adult cancer patients presenting to the Thomas Jefferson …

The Impact Of Native Language Status On The Frequency Of Heart Failure Readmissions, Cooper Blazek, Dave Katzianer, Md

Phase 1

Introduction. Heart failure readmissions are costly and lead to poor health outcomes. The efficacy of discharge instructions or other outpatient interventions may be affected by patient’s primary language status. The aim of this study is to look at the impact of primary language status on the frequency of heart failure admissions.

Methods. This study was a retrospective chart review of EMRs, on Epic software, at Jefferson academic medical center and community affiliate in Philadelphia, PA between March 2017 and October 2018. Patients were included if they had a principal diagnosis of HF or a diagnosis associated with “acute” heart failure …