Medical Specialties Commons^™

Slit2/Robo1-Mir-218-1-Ret/Plag1: A New Disease Pathway Involved In Hirschsprung's Disease., Weibing Tang, Junwei Tang, Jun He, Zhigang Zhou, Yufeng Qin, Jingjing Qin, Bo Li, Xiaoqun Xu, Qiming Geng, Weiwei Jiang, Wei Wu, Xinru Wang, Yankai Xia

Department of Pathology, Anatomy, and Cell Biology Faculty Papers

Hirschsprung's disease (HSCR) is a rare congenital disease caused by impaired proliferation and migration of neural crest cells. We investigated changes in expression of microRNAs (miRNAs) and the genes they regulate in tissues of patients with HSCR. Quantitative real-time PCR and immunoblot analyses were used to measure levels of miRNA, mRNAs, and proteins in colon tissues from 69 patients with HSCR and 49 individuals without HSCR (controls). Direct interactions between miRNAs and specific mRNAs were indentified in vitro, while the function role of miR-218-1 was investigated by using miR-218 transgenic mice. An increased level of miR-218-1 correlated with increased levels …

Understanding Nucleus Pulposus Cell Phenotype: A Prerequisite For Stem Cell Based Therapies To Treat Intervertebral Disc Degeneration., Hyowon Choi, Zariel I. Johnson, Makarand V. Risbud

Department of Orthopaedic Surgery Faculty Papers

Intervertebral disc (IVD) degeneration and associated low back pain (LBP) remains a major burden to our society without significant improvements in treatment strategies or patient's quality of life. While the recent cell-transplantation studies for treatment of degenerative disc disease have shown promising results, to better gauge the success and functional outcomes of these therapies, it is crucial to understand if transplanted cells give rise to healthy nucleus pulposus (NP) tissue. NP cell phenotype is unique and is defined by expression of a characteristic set of markers that reflect specialized physiology and function. This review summarizes phenotypic markers that mirror the …

Characterization Of In-Hospital Cardiac Arrest In Adult Patients At A Tertiary Hospital In Kenya, Benjamin Wachira

Internal Medicine, East Africa

Background:In-hospital cardiac arrest (IHCA) is defined as a cardiac arrest that occurs in a hospital and for which resuscitation is attempted. Despite the increased morbidity and mortality, IHCA incidence and outcomes remain largely unknown especially in sub-Saharan Africa. This study describes the baseline characteristics, prearrest physiological parameters and the rate of survival to hospital discharge of adult patients with an IHCA at a tertiary hospital in Kenya.

Methods:This was a retrospective chart review. Data on patient characteristics, pre-arrest physiological parameters and discharge condition were collected on all patients 18 years of age or older with an IHCA at …

Accelerating The Dual Elimination Of Mother-To-Child Transmission Of Syphilis And Hiv: Why Now?, James Kiarie, Chandra K. Mishra, Marleen Temmerman

Obstetrics and Gynaecology, East Africa

Even though the elimination of congenital syphilis has been on the maternal and child health (MCH) agenda for over a decade, elimination has not yet been achieved; what, then, are the factors currently facilitating the elimination of mother-to-child transmission (MTCT) of syphilis?

Which Role Do Midwives And Gynecologists Have In Smoking Cessation In Pregnant Women?–A Study In Flanders, Belgium, Katrien De Wilde, Inge Tency, Sarah Steckel, Marleen Temmerman, Hedwig Boudrez, Lea Maes

Obstetrics and Gynaecology, East Africa

Objectives: The objectives of our study were (1) to explore knowledge, beliefs and practice among mid-wives and gynecologists concerning a smoking cessation policy for pregnant women and their partners and (2) to examine if midwives and gynecologists do have a role in smoking cessation in pregnant women.

Method: We performed a qualitative study using semi-structured interviews with nine midwives and eight gynecologists. Data were analyzed using deductive content analysis, based on the 5 A’s frame-work (Ask–Advise–Assess–Assist–Arrange).

Results: The national smoking cessation policy seemed to be insufficiently known. “Ask” and “Advise" were part of a standard prenatal consultation, the next three …

Depression Among Asian-American Adults In The Community: Systematic Review And Meta-Analysis., Hee Jun Kim, Eunmi Park, Carla L Storr, Katherine Tran, Hee-Soon Juon

Department of Medical Oncology Faculty Papers

OBJECTIVES: In this systematic review, we provide an overview of the literature on depression among Asian-Americans and explore the possible variations in depression prevalence estimates by methodological and demographic factors.

METHODS: Six databases were used to identify studies reporting a prevalence estimate for depression in Asian-American adults in non-clinical settings. Meta-analysis was used to calculate pooled estimates of rates of depression by assessment type. Statistical heterogeneity was assessed for subgroup analyses by gender, age, ethnicity, and other participant characteristics.

RESULTS: A total of 58 studies met the review criteria (n = 21.731 Asian-American adults). Heterogeneity across the studies was considerably …

Magnetic Resonance Imaging In Pediatric Pulmonary Hypertension, Ayhan Pektas, Rana Olgunturk, Ayhan Cevik, Semiha Terlemez, Emre Kacar, Yusuf Ali Oner

The Texas Heart Institute Journal

The present study aims to determine the efficacy and reliability of cardiovascular magnetic resonance imaging in establishing the diagnosis and prognosis of pulmonary hypertension in children.

This is a retrospective comparison of 25 children with pulmonary hypertension and a control group comprising 19 healthy children. The diagnosis of pulmonary hypertension was made when the mean pulmonary artery pressure was ≥25 mmHg by catheter angiography.

The children with pulmonary hypertension had significantly lower body mass indices than did the healthy children (P=0.048). In addition, the children with pulmonary hypertension had significantly larger main pulmonary artery diameters and ascending aortic diameters (both …

Prophylactic Methylprednisolone To Reduce Inflammation And Improve Outcomes From One Lung Ventilation In Children: A Randomized Clinical Trial., Mary C. Theroux, Alicia Olivant Fisher, Maria E. Rodriguez, Robert P. Brislin, Kirk W. Reichard, Suken A. Shah, Matt Mccoy, Melinda Brown, Kirk W. Dabney, William G. Mackenzie, Douglas A. Katz, Thomas H. Shaffer

Department of Anesthesiology Faculty Papers

BACKGROUND: One lung ventilation (OLV) results in inflammatory and mechanical injury, leading to intraoperative and postoperative complications in children. No interventions have been studied in children to minimize such injury.

OBJECTIVE: We hypothesized that a single 2-mg·kg(-1) dose of methylprednisolone given 45-60 min prior to lung collapse would minimize injury from OLV and improve physiological stability.

METHODS: Twenty-eight children scheduled to undergo OLV were randomly assigned to receive 2 mg·kg(-1) methylprednisolone (MP) or normal saline (placebo group) prior to OLV. Anesthetic management was standardized, and data were collected for physiological stability (bronchospasm, respiratory resistance, and compliance). Plasma was assayed for …

Hepatic Encephalopathy In Chronic Liver Disease: Predisposing Factors In A Developing Country, Fakhar Qazi, Shameem Behram Khan, Anam Umar

Section of Gastroenterology

Objective: To fi nd out the risk factors for developing Hepatic Encephalopathy in patients suffering from Chronic liver disease.

Background: Hepatic encephalopathy (HE) is a neuropsychiatric disorder that is caused by liver damage. In its pathology, alterations in normal brain function are associated with an increase in blood ammonia, benzodiazepine like substances, products of neurotoxic fatty acids, and other gut derived toxins, which gain access to the brain as a result of liver dysfunction.

Study Design: Hospital based descriptive, cross sectional study.

Settings: Medical Unit 1, Ward- 5, Jinnah Post Graduate Medical Centre, Karachi.

Duration: July 2013 to December 2013. …

Validation Study Of The Mini-Mental State Examination In Urdu Language For Pakistani Population, Safia Awan, Naila Shahbaz,, Syed Wasim Akhtar, Arsalan Ahmad, Sadaf Iqba, Sellal Ahmed, Haider Naqvi, Mohammad Wasay

Section of Neurology

Validation study of the Mini-Mental State Examination in Urdu language for Pakistani population. Objective: This study was conducted primarily to validate and determine the optimal cutoff score in the diagnosis of dementia among Pakistani’s and study the effects of gender and education on the MMSE performance in our population. Methods: Four hundred participants took part in the study. Patient with dementia recruited from five major hospitals from Pakistan. The MMSE was translated into Urdu. Results: There were 61 men and 39 women in dementia group and 225 men and 75 women in the control group. The mean score of Urdu …

Morbidity And Mortality Assessment In Acute Hepatitis-E, Lubna Kamani, Saeed Sadiq Hamid, Faisal Wasim Ismail, Syed Waqas Haider, Safia Awan, Ashfaq Ahmed, Wasim Jafri

Department of Medicine

Background: Hepatitis-E is an enterically transmitted virus causing acute hepatitis. Mostly it is a self-limiting clinical course, but can be life threatening in certain high risk groups. Pakistan is endemic for Hepatitis-E with limited published literature. The aim of this study is to evaluate the predictors of mortality in patients with acute Hepatitis-E.
Methods: We analyzed the medical records of 369 adult patients with Hepatitis-E infection admitted at Aga khan University Hospital, from January 1996 to December 2010. Details of their laboratory investigations, clinical course and complications such as FHF and mortality were noted. The outcome was compared, and determinants …

Development Of A Guide By Postgraduate Residents On Receiving Feedback From Faculty In The Operating Theatre At Aga Khan University Hospital, David Karuri Maina

Master of Medicine in General Surgery

Background: Direct observation of residents in clinical encounters by faculty and assessment for learning has now become a key component of postgraduate training programs. DOPS, a workplace-based assessment form, was designed to provide formative assessment and feedback about a trainee’s procedural skills. Interactions between residents and faculty are central to this learning process and are influenced by multiple factors both at faculty and resident levels as well as contextual factors. The feedback may be used by the receiver to contemplate behaviour change. The receptivity of the resident to the feedback is a key determinant as to whether the process to …

Comparison Of Cardiovascular Risk Profiles Amongst Newly Diagnosed Cancer Patients And Non-Cancer Patients At The Aga Khan University Hospital Nairobi, Majid Lingani-Ncube Sikosana

Master of Medicine in Internal Medicine

Background: Non-Communicable Diseases (NCDs) are fast becoming the leading causes of morbidity and mortality in Low and Middle-income countries (LMIC) with cancers and cardiovascular diseases (CVDs) becoming the most prominent. CVD can be prevented if appropriate measures of screening and treatment of modifiable risk factors are addressed. This may translate to reduced risk of CVDs and some cancers in the long term. Increasing evidence exhibits common risk factors for both CVDs and cancer and that CVDs and their risk factors when present in cancer patients may worsen the overall outcome. Objectives: The primary objective was to determine and compare the …

Cellular And Deafness Mechanisms Underlying Connexin Mutation-Induced Hearing Loss - A Common Hereditary Deafness, Jeffrey C. Wingard, Hong-Bo Zhao

Otolaryngology--Head & Neck Surgery Faculty Publications

Hearing loss due to mutations in the connexin gene family, which encodes gap junctional proteins, is a common form of hereditary deafness. In particular, connexin 26 (Cx26, GJB2) mutations are responsible for ~50% of non-syndromic hearing loss, which is the highest incidence of genetic disease. In the clinic, Cx26 mutations cause various auditory phenotypes ranging from profound congenital deafness at birth to mild, progressive hearing loss in late childhood. Recent experiments demonstrate that congenital deafness mainly results from cochlear developmental disorders rather than hair cell degeneration and endocochlear potential reduction, while late-onset hearing loss results from reduction of active …

Intramembranous Bone Healing Process Subsequent To Tooth Extraction In Mice: Micro-Computed Tomography, Histomorphometric And Molecular Characterization, Andreia Espindola Vieira, Carlos Eduardo Repeke, Samuel De Barros Ferreira Junior, Priscila Maria Colavite, Cláudia Cristina Biguetti, Rodrigo Cardoso Oliveira, Gerson Francisco Assis, Rumio Taga, Ana Paula Favaro Trombone, Gustavo P. Garlet

School of Podiatric Medicine Publications

Bone tissue has a significant potential for healing, which involves a significant the interplay between bone and immune cells. While fracture healing represents a useful model to investigate endochondral bone healing, intramembranous bone healing models are yet to be developed and characterized. In this study, a micro-computed tomography, histomorphometric and molecular (RealTimePCRarray) characterization of post tooth-extraction alveolar bone healing was performed on C57Bl/6 WT mice. After the initial clot dominance (0 h), the development of a provisional immature granulation tissue is evident (7 d), characterized by marked cell proliferation, angiogenesis and inflammatory cells infiltration; associated with peaks of growth factors …

Ultrasound Evaluation Of Umbilical Coiling Index In Second Trimester Of Gestation And Its Association With Small For Gestational Age Status At Birth, Josephine Mwikali Ndolo

Master of Medicine in Imaging and Diagnostic Radiology

Introduction: The degree of coiling of the umbilical cord, referred to as umbilical coiling index, has been shown to have an effect on perinatal adverse outcomes such as small for gestational age neonates, interventional delivery, meconium staining, low fetal pH and low Apgar score. This study proposes that the antenatal umbilical coiling index performed in the second trimester of pregnancy has a correlation with the gestation-specific birth weight and can therefore be used as a marker to predict small for gestational age neonates. Objective: To determine the association between antenatal umbilical coiling index (aUCI) in the second trimester and small …

Assessing Predictors Of Contraceptive Use And Demand For Family Planning Services In Underserved Areas Of Punjab Province In Pakistan: Results Of A Cross-Sectional Baseline Survey, Syed Khurram Azmat, Moazzam Ali, Muhammad Ishaque, Ghulam Mustafa, Waqas Hameed, Omar Farooq Khan, Ghazunfer Abbas, Marleen Temmerman, Erik Munroe

Community Health Sciences

Background: Although Pakistan was one of the first countries in Asia to launch national family planning programs, current modern contraceptive use stands at only 26% with a method mix skewed toward short-acting and permanent methods. As part of a multiyear operational research study, a baseline survey was conducted to understand the predictors of contraceptive use and demand for family planning services in underserved areas of Punjab province in Pakistan. This paper presents the baseline survey results; the outcomes of the intervention will be presented in a separate paper after the study has been completed.
Method: A cross-sectional baseline household survey …

Isolation Of Mycobacterium Avium From Potable Water In Homes And Institutions Of Patients With Hiv Infection In Finland And The United States, Matti Ristola, Robert D. Arbeit, C. Fordham Von Reyn, C. Robert Horsburgh

Dartmouth Scholarship

Symptomatic disease by nontuberculous mycobacteria has been linked to potable water from institutional and domestic potable water systems. Potable water samples were collected from homes and institutions of patients with AIDS. Colonization of potable water with nontuberculous mycobacteria was demonstrated in 230 (15%) of 1489 samples collected from domestic and institutional water systems of patients with HIV infection in the United States and Finland. Mycobacterium avium was the most common species and colonization was favored at temperatures of 40–50°C in recirculating hot water systems. Such systems are a plausible source of human infection and disease.

Successful Implementation Of A Packed Red Blood Cell And Fresh Frozen Plasma Transfusion Protocol In The Surgical Intensive Care Unit, Benjamin E. Szpila, Tezcan Ozrazgat-Baslanti, Jianyi Zhang, Jennifer Lanz, Ruth Davis, Annette Rebel, Erin Vanzant, Lori F. Gentile, Alex G. Cuenca, Darwin N. Ang, Huazhi Liu, Lawrence Lottenberg, Peggy Marker, Marc Zumberg, Azra Bihorac, Frederick A. Moore, Scott Brakenridge, Philip A. Efron

Anesthesiology Faculty Publications

BACKGROUND: Blood product transfusions are associated with increased morbidity and mortality. The purpose of this study was to determine if implementation of a restrictive protocol for packed red blood cell (PRBC) and fresh frozen plasma (FFP) transfusion safely reduces blood product utilization and costs in a surgical intensive care unit (SICU).

STUDY DESIGN: We performed a retrospective, historical control analysis comparing before (PRE) and after (POST) implementation of a restrictive PRBC/FFP transfusion protocol for SICU patients. Univariate analysis was utilized to compare patient demographics and blood product transfusion totals between the PRE and POST cohorts. Multivariate logistic regression …

Astrocyte Morphology, Heterogeneity, And Density In The Developing African Giant Rat (Cricetomys Gambianus), Matthew A. Olude, Oluwaseun A. Mustapha, Oluwatunde A. Aderounmu, James O. Olopade, Amadi O. Ihunwo

Brain and Mind Institute

Astrocyte morphologies and heterogeneity were described in male African giant rats (AGR; Cricetomys gambianus, Waterhouse) across three age groups (five neonates, five juveniles, and five adults) using Silver impregnation method and immunohistochemistry against glial fibrillary acidic protein. Immunopositive cell signaling, cell size and population were least in neonates, followed by adults and juveniles, respectively. In neonates, astrocyte processes were mostly detected within the glia limitans of the mid and hind brain; their cell bodies measuring 32 ± 4.8 μm in diameter against 91 ± 5.4 μm and 75 ± 1.9 μm in juveniles and adults, respectively. Astrocyte heterogeneity in …

2015 Annual Nsqip Conference Erin (Enhanced Recovery In Nsqip) Session, Michael D. Pasquale Md, Facs, Fccm, Pat Toselli Do, Richard Kolesky Md, Robert J. Sinnott Do, Cathleen Webber Rn, Mshs, Sharon Pustilnik Rn, Bs, Justina A. Momah Rn, Crnp

Department of Surgery

No abstract provided.

Managing End-Of-Life Pain Using A Rectal Medication Administration Device, Yen T. Kim

Doctor of Nursing Practice Final Manuscripts

Purpose: The purpose of this project was to improve end-of-life pain management among hospice patients using a rectal medication administration device (RMAD).

Background: Approximately 1.5 to 1.6 million patients received hospice services in 2013 (National Hospice and Palliative Care Organization, 2013), and almost 75% of terminally ill patients experience pain during the dying process (Fink & Gates, 2010). Patients are often unable to tolerate oral pain medications at the end of life. Rectal administration of medication is an appropriate alternative for these patients. The rectal route has several benefits including low cost, consistent and predictable absorption of medications, ease of …

Promoting Completion Of Advance Directives In A Hispanic Religious Congregation: An Evidence-Based Practice Project, Luis Daniel San Miguel, Mary Jo Clark

Doctor of Nursing Practice Final Manuscripts

Background: Hispanics utilize more aggressive medical treatment at the end of life and are less likely to receive end-of-life care consistent with their wishes than nonHispanic Whites. Hispanics are less likely than nonHispanic Whites to have an advance directive (AD). Increasing AD completion among Hispanics can promote end-of-life care consistent with their wishes, diminish healthcare disparities, and eliminate unnecessary healthcare spending. Objectives: To promote completion of advance directives by increasing knowledge, positive attitudes, and comfort with advance care planning (ACP) among Hispanics through culturally sensitive interventions. Intervention: The project was conducted in Spanish and implemented among a …

Implementation Of An Evidence-Based Educational Workshop And Toolkit: Menopausal Women's Healthcare Needs For The Primary Care Provider, Pamela Doerr-Kashani Dnp, Rn

Doctor of Nursing Practice (DNP) Projects

This evidence-based change of practice project involved the development of an educational workshop for primary care providers (PCPs). The intent of the project was to improve PCP’s knowledge of menopausal health, and to create their comfort level when discussing menopausal healthcare with clients. The workshop Menopausal Women’s Healthcare Needs for the Primary Care Provider (Doerr-Kashani, 2014) was created in response to an identified gap in knowledge among PCPs nationally on menopause-related health issues. The workshop was designed as a resource to support PCPs to competently address women’s menopause-related health issues, and enable them to provide comprehensive, evidence-based care within the …

Human Dna Exonuclease Trex1 Is Also An Exoribonuclease That Acts On Single-Stranded Rna, Fenghua Yuan, Tanmay Dutta, Ling Wang, Lei Song, Liya Gu, Liangyue Qian, Anaid Benitez, Shunbin Ning, Arun Malhotra, Murray P. Deutcher, Yanbin Zhang

ETSU Faculty Works

3′ repair exonuclease 1 (TREX1) is a known DNA exonuclease involved in autoimmune disorders and the antiviral response. In this work, we show that TREX1 is also a RNA exonuclease. Purified TREX1 displays robust exoribonuclease activity that degrades single-stranded, but not double-stranded, RNA. TREX1-D200N, an Aicardi-Goutieres syndrome disease-causing mutant, is defective in degrading RNA. TREX1 activity is strongly inhibited by a stretch of pyrimidine residues as is a bacterial homolog, RNase T. Kinetic measurements indicate that the apparent Km of TREX1 for RNA is higher than that for DNA. Like RNase T, human TREX1 is active in degrading native tRNA …

Re-Examination Of 30-Day Survival And Relapse Rates In Patients With Thrombotic Thrombocytopenic Purpura-Hemolytic Uremic Syndrome, Cassiana E. Bittencourt, Jennifer P. Ha, Robert W. Maitta

Faculty Scholarship

Background and Objectives: Thrombotic thrombocytopenic purpura (TTP) and hemolytic uremic syndrome (HUS) are characterized by microangiopathic hemolytic anemia and thrombocytopenia. Interestingly, markedly different survival rates have been reported despite increases in survivability. We studied TTP-HUS 30-day mortality and relapse rates of patients who received TPE at our institution and compared them to published data. Patients and Methods: Retrospective study analyzed 30-day mortality and relapse rates attributed to TTP-HUS from 01/01/2008 to 12/31/2012 and compared them to comparable literature reporting mortality and survival. Studies describing other etiologies for TPE and different mortality time interval were excluded. Results: Fifty-nine patients were analyzed …

Value-Based Medicine: The Financial Impact Of A Pressure Ulcer Prevention Program On A Trauma Population, Jayme D. Lieberman Md, Patrick S. Duffy Md, Kai L. Bortz Rn, Rovinder S. Sandhu Md, Michael D. Pasquale Md, Facs, Fccm, Michael M. Badellino Md

Department of Surgery

No abstract provided.

Robotic Sublobar Resection For The Surgical Management Of Isolated Pulmonary Nodules, Victor S. Reis Md, Kyle M. Langston Pa-C, Alec Talsania, Alexander Werner, Michael F. Szwerc Md, Timothy S. Misselbeck, Mark E. Perry Md

Department of Surgery

No abstract provided.

Genetic Heterogeneity Of Pseudoxanthoma Elasticum: The Chinese Signature Profile Of Abcc6 And Enpp1 Mutations., Liang Jin, Qiujie Jiang, Zhengsheng Wu, Changxia Shao, Yong Zhou, Luting Yang, Jouni Uitto, Gang Wang

Department of Dermatology and Cutaneous Biology Faculty Papers

Pseudoxanthoma elasticum (PXE), an autosomal recessive disorder characterized by ectopic mineralization, is caused by mutations in the ABCC6 gene. We examined clinically 29 Chinese PXE patients from unrelated families, so far the largest cohort of Asian PXE patients. In a subset of 22 patients, we sequenced ABCC6 and another candidate gene, ENPP1, and conducted pathogenicity analyses for each variant. We identified a total of 17 distinct mutations in ABCC6, 15 of them being, to our knowledge, previously unreported, including 5 frameshift and 10 missense variants. In addition, a missense mutation in combination with a recurrent nonsense mutation in ENPP1 was …

Improving Hand Hygiene Compliance To Reduce Clabsi Rate In Oncology Icu, Lorenzo D. San Pedro

Master's Projects and Capstones

The aim of this project is to reduce the rate of central line associated blood stream infection (CLABSI) occurrence in oncology ICU by 50% by the last quarter of 2015. This study was conducted in ICU to assess adherence to the facility’s hand hygiene (HH) protocol among the staff nurses and allied healthcare workers. The facility is best known as a non-profit cancer treatment center and designated as a Comprehensive Cancer Center. Evidence showed that hand hygiene is the most effective way of preventing CLABSI, one of the most common types of infection in ICU microsystem. The project utilized The …