Medicine and Health Sciences Commons^™

Documentation Of Body Mass Index And Control Of Associated Risk Factors In A Large Primary Care Network, Stephanie A. Rose, Alexander Turchin, Richard W. Grant, James B. Meigs

Internal Medicine Faculty Publications

BACKGROUND: Body mass index (BMI) will be a reportable health measure in the United States (US) through implementation of Healthcare Effectiveness Data and Information Set (HEDIS) guidelines. We evaluated current documentation of BMI, and documentation and control of associated risk factors by BMI category, based on electronic health records from a 12-clinic primary care network.

METHODS: We conducted a cross-sectional analysis of 79,947 active network patients greater than 18 years of age seen between 7/05 - 12/06. We defined BMI category as normal weight (NW, 18-24.9 kg/m²), overweight (OW, 25-29.9), and obese (OB, ≥ 30). We measured documentation …

Effects Of Caregiver Burden And Satisfaction On Affect Of Older End-Stage Renal Disease Patients And Their Spouses, Maureen Wilson-Genderson, Rachel A Pruchno, Francine P Cartwright

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

We examined the extent to which a 2-factor model of affect explains how the burdens and satisfactions experienced by caregivers influence their own well-being and that of the spouses for whom they provide care. Using data from 315 older patients with end-stage renal disease and their spouses, we extended tests of Lawton et al.'s (1991) 2-factor model both longitudinally and dyadically. Multilevel modeling analyses partially support the 2-factor model. Consistent with the model, mean caregiver burden has a stronger effect on both caregiver and patient negative affect than does mean caregiver satisfaction. Contrary to the model, mean caregiver satisfaction has …

Hla-Dpb1 And Dpb2 Are Genetic Loci For Systemic Sclerosis: A Genome-Wide Association Study In Koreans With Replication In North Americans, Xiaodong Zhou, Jong Eun Lee, Frank C Arnett, Momiao Xiong, Min Young Park, Yeon Kyeong Yoo, Eun Soon Shin, John D Reveille, Maureen D Mayes, Jin Hyun Kim, Ran Song, Ji Yong Choi, Ji Ah Park, Yun Jong Lee, Eun Young Lee, Yeong Wook Song, Eun Bong Lee

Journal Articles

OBJECTIVE: To identify systemic sclerosis (SSc) susceptibility loci via a genome-wide association study.

METHODS: A genome-wide association study was performed in 137 patients with SSc and 564 controls from Korea using the Affymetrix Human SNP Array 5.0. After fine-mapping studies, the results were replicated in 1,107 SSc patients and 2,747 controls from a US Caucasian population.

RESULTS: The single-nucleotide polymorphisms (SNPs) (rs3128930, rs7763822, rs7764491, rs3117230, and rs3128965) of HLA-DPB1 and DPB2 on chromosome 6 formed a distinctive peak with log P values for association with SSc susceptibility (P=8.16x10(-13)). Subtyping analysis of HLA-DPB1 showed that DPB1*1301 (P=7.61x10(-8)) and DPB1*0901 (P=2.55x10(-5)) were …

Sox11 Expression Is Highly Specific For Mantle Cell Lymphoma And Identifies The Cyclin D1-Negative Subtype., Ana Mozos, Cristina Royo, Elena Hartmann, Daphne De Jong, Cristina Baró, Alexandra Valera, Kai Fu, Dennis D. Weisenburger, Jan Delabie, Shih-Sung Chuang, Elaine S. Jaffe, Carmen Ruiz-Marcellan, Sandeep Dave, Lisa Rimsza, Rita Braziel, Randy D. Gascoyne, Francisco Solé, Armando López-Guillermo, Dolors Colomer, Louis M. Staudt, Andreas Rosenwald, German Ott, Pedro Jares, Elias Campo

Journal Articles: Pathology and Microbiology

BACKGROUND: Cyclin D1-negative mantle cell lymphoma is difficult to distinguish from other small B-cell lymphomas. The clinical and pathological characteristics of patients with this form of lymphoma have not been well defined. Overexpression of the transcription factor SOX11 has been observed in conventional mantle cell lymphoma. The aim of this study was to determine whether this gene is expressed in cyclin D1-negative mantle cell lymphoma and whether its detection may be useful to identify these tumors.

DESIGN AND METHODS: The microarray database of 238 mature B-cell neoplasms was re-examined. SOX11 protein expression was investigated immunohistochemically in 12 cases of cyclin …

Sour Ageusia In Two Individuals Implicates Ion Channels Of The Asic And Pkd Families In Human Sour Taste Perception At The Anterior Tongue., Taufiqul Huque, Beverly J Cowart, Luba Dankulich-Nagrudny, Edmund A Pribitkin, Douglas L Bayley, Andrew I Spielman, Roy S Feldman, Scott A Mackler, Joseph G Brand

Department of Otolaryngology - Head and Neck Surgery Faculty Papers

BACKGROUND: The perception of sour taste in humans is incompletely understood at the receptor cell level. We report here on two patients with an acquired sour ageusia. Each patient was unresponsive to sour stimuli, but both showed normal responses to bitter, sweet, and salty stimuli.

METHODS AND FINDINGS: Lingual fungiform papillae, containing taste cells, were obtained by biopsy from the two patients, and from three sour-normal individuals, and analyzed by RT-PCR. The following transcripts were undetectable in the patients, even after 50 cycles of amplification, but readily detectable in the sour-normal subjects: acid sensing ion channels (ASICs) 1a, 1beta, 2a, …

Antidepressant-Induced Mania With Concomitant Mood Stabilizer In Patients With Comorbid Substance Abuse And Bipolar Disorder., Daniel Z Lieberman, George Kolodner, Suena H Massey, Kenneth P Williams

Psychiatry and Behavioral Sciences Faculty Publications

Antidepressant use in the treatment of bipolar disorder is controversial due the risks of affective switching and cycle acceleration. Studies of non-comorbid samples suggest that the risk can be mitigated with the use of a concomitant mood stabilizer. However, the majority of patients with bipolar disorder will experience a comorbid substance use disorder and little is known about these individuals because they are typically excluded from clinical trials. Patients entering a substance abuse treatment program who had a history of bipolar disorder were interviewed to evaluate antidepressant-induced affective switching with and without concomitant mood stabilizer. Among 41 comorbid participants, the …

Spontaneous Left Main Coronary Artery Dissection, Possibly Due To Cystic Medial Necrosis Found In The Internal Mammary Arteries., Hitoshi Hirose, Iwao Matsunaga, Waqas Anjun, Michael D Strong

Department of Surgery Faculty Papers

A 55-year-old male without previous medical history developed chest pain. Coronary catheterization showed left main coronary dissection. Coronary artery bypass grafting was performed using bilateral internal mammary arteries, which were very fragile. The specimens of the internal mammary arteries sent for pathology showed cystic medial necrosis.

Euroscore Predicts Postoperative Mortality, Certain Morbidities, And Recovery Time., Hitoshi Hirose, Hirotaka Inaba, Chiaki Noguchi, Keiichi Tambara, Taira Yamamoto, Motoshige Yamasaki, Keita Kikuchi, Atsushi Amano

Department of Surgery Faculty Papers

EuroSCORE (European System for Cardiac Operative Risk Evaluation) used for calculating the risk of the postoperative mortality rate for patients undergoing open-heart surgery may be able to predict postoperative complications as well. Consecutive cases of isolated on-pump coronary artery bypass grafting (CABG) (n=1552) performed between 1991 and 2006 at our hospital group were placed into a systematic database. Patients were stratified using additive EuroSCORE. Incidence of postoperative mortality, morbidity (bleeding, heart failure, mediastinitis, pneumonia, myocardial infarction, renal failure, and stroke), and recovery time (intubation time, ICU stay, and postoperative length of stay) was assessed in each EuroSCORE group. EuroSCORE was …

Ethnic Differences In Do-Not-Resuscitate Orders After Intracerebral Hemorrhage, Darin B Zahuranec, Devin L Brown, Lynda D Lisabeth, Nicole R Gonzales, Paxton J Longwell, Melinda A Smith, Nelda M Garcia, Lewis B Morgenstern

Journal Articles

OBJECTIVE: To explore ethnic differences in do-not-resuscitate orders after intracerebral hemorrhage.

DESIGN: Population-based surveillance.

SETTING: Corpus Christi, Texas.

PATIENTS: All cases of intracerebral hemorrhage in the community of Corpus Christi, TX were ascertained as part of the Brain Attack Surveillance in Corpus Christi (BASIC) project.

INTERVENTIONS: None.

MEASUREMENTS AND MAIN RESULTS: Medical records were reviewed for do-not-resuscitate orders. Unadjusted and multivariable logistic regression were used to test for associations between ethnicity and do-not-resuscitate orders, both overall ("any do-not-resuscitate") and within 24 hrs of presentation ("early do-not-resuscitate"), adjusted for age, gender, Glasgow Coma Scale, intracerebral hemorrhage volume, intraventricular hemorrhage, infratentorial hemorrhage, …

Bridging The Care Continuum: Patient Information Needs For Specialist Referrals., Carol L. Ireson, Svetla Slavova, Carol L. Steltenkamp, F. Douglas Scutchfield

Preventive Medicine and Environmental Health Faculty Publications

BACKGROUND: Information transfer is critical in the primary care to specialist referral process and has been examined extensively in the US and other countries, yet there has been little attention to the patient's perspective of the information transfer process. This cross-sectional study examined the quality of the information received by patients with a chronic condition from the referring and specialist physician in the specialist referral process and the relationship of the quality of information received to trust in the physicians.

METHODS: Structured telephone interviews were conducted with a random sample of 250 patients who had experienced a referral to a …

Adapting To Dynamic Stimulus-Response Values: Differential Contributions Of Inferior Frontal, Dorsomedial, And Dorsolateral Regions Of Prefrontal Cortex To Decision Making., Derek G V Mitchell, Qian Luo, Shelley B Avny, Tomasz Kasprzycki, Karanvir Gupta, Gang Chen, Elizabeth C Finger, R James R Blair

Brain and Mind Institute Researchers' Publications

Dorsomedial prefrontal cortex (dmPFC), dorsolateral prefrontal cortex (dlPFC), and inferior frontal gyrus (IFG) have all been implicated in resolving decision conflict whether this conflict is generated by having to select between responses of similar value or by making selections following a reversal in reinforcement contingencies. However, work distinguishing their individual functional contributions remains preliminary. We used functional magnetic resonance imaging to delineate the functional role of these systems with regard to both forms of decision conflict. Within dmPFC and dlPFC, blood oxygen level-dependent responses increased in response to decision conflict regardless of whether the conflict occurred in the context of …

Jnk1 Activation Predicts The Prognostic Outcome Of The Human Hepatocellular Carcinoma, Qingshan Chang, Jianguo Chen, Kevin J. Beezhold, Vince Castranova, Xianglin Shi, Fei Chen

Toxicology and Cancer Biology Faculty Publications

BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide with an extremely poor prognosis. The classification of HCC based on the molecular signature is not well-established.

RESULTS: In the present study, we reported HCC signature genes based on the JNK1 activation status in 31 HCC specimens relative to the matched distal noncancerous liver tissue from 31 patients. The HCCs with high JNK1 (H-JNK1) and low JNK1 (L-JNK1) were sub-grouped. Two different signature gene sets for both H-JNK1 and L-JNK1 HCC were identified through gene expression profiling. A striking overlap of signature genes was observed between the H-JNK1 …

Dynamic Mechanical (Brush) Allodynia In Cluster Headache: A Prevalence Study In A Tertiary Headache Clinic., Michael J Marmura, Muhammad Abbas, Avi Ashkenazi

Department of Jefferson Headache Center papers and presentations

Cutaneous allodynia (CA) has been described in migraine and has been related to treatment failure. There are little data about the incidence of CA in other primary headache syndromes such as cluster headache (CH). The objectives of this study are to evaluate the prevalence of dynamic mechanical (brush) allodynia (BA) in CH patients attending a tertiary headache clinic, and to assess its relation to disease characteristics. Adult patients with episodic or chronic CH were recruited. We obtained demographic data and data on disease characteristics through a structured questionnaire, and tested the patients for brush allodynia BA by applying a 4 …

Depressive Symptoms And Marital Satisfaction In The Context Of Chronic Disease: A Longitudinal Dyadic Analysis, Rachel Pruchno, Maureen Wilson-Genderson, Francine P Cartwright

Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship

These analyses examined the longitudinal relationships between depressive symptoms and marital satisfaction over a 2-year period as experienced by 315 patients with end-stage renal disease and their spouses. Using multilevel modeling, the authors examined both individual and cross-partner effects of depressive symptoms and marital satisfaction on patients and spouses, testing bidirectional causality. Results indicate that mean and time-varying depressive symptoms of both patients and spouses were associated with their own marital satisfaction. Although mean marital satisfaction was associated with own depressive symptoms for both patients and spouses, time-varying marital satisfaction did not affect depressive symptoms for either patients or spouses. …

Food Insecurity Among Homeless And Marginally Housed Individuals Living With Hiv/Aids In San Francisco, Sheri D. Weiser, David R. Bangsberg, Susan Kegeles, Kathleen Ragland, Margot B. Kushel, Edward A. Frongillo Jr.

Faculty Publications

Food insecurity is a risk factor for both HIV transmission and worse HIV clinical outcomes. We examined the prevalence of and factors associated with food insecurity among homeless and marginally housed HIV-infected individuals in San Francisco recruited from the Research on Access to Care in the Homeless Cohort. We used multiple logistic regression to determine socio-demographic and behavioral factors associated with food insecurity, which was measured using the Household Food Insecurity Access Scale. Among 250 participants, over half (53.6%) were food insecure. Higher odds of food insecurity was associated with being white, low CD4 counts, recent crack use, lack of …

Epidemiology And Outcomes Of Candidemia In 2019 Patients: Data From The Prospective Antifungal Therapy Alliance Registry., David L Horn, Dionissios Neofytos, Elias J Anaissie, Jay A Fishman, William J Steinbach, Ali J Olyaei, Kieren A Marr, Michael A Pfaller, Chi-Hsing Chang, Karen M Webster

Jefferson Hospital Staff Papers and Presentations

BACKGROUND: Candidemia remains a major cause of morbidity and mortality in the health care setting, and the epidemiology of Candida infection is changing.

METHODS: Clinical data from patients with candidemia were extracted from the Prospective Antifungal Therapy (PATH) Alliance database, a comprehensive registry that collects information regarding invasive fungal infections. A total of 2019 patients, enrolled from 1 July 2004 through 5 March 2008, were identified. Data regarding the candidemia episode were analyzed, including the specific fungal species and patient survival at 12 weeks after diagnosis.

RESULTS: The incidence of candidemia caused by non-Candida albicans Candida species (54.4%) was higher …

A Retrospective Claims Analysis Of Combination Therapy In The Treatment Of Adult Attention-Deficit/Hyperactivity Disorder (Adhd), Gerhardt M. Pohl, David L. Van Brunt, Wenyu Ye, William W. Stoops, Joseph A. Johnston

Behavioral Science Faculty Publications

BACKGROUND: Combination therapy in managing psychiatric disorders is not uncommon. While combination therapy has been documented for depression and schizophrenia, little is known about combination therapy practices in managing attention-deficit/hyperactivity disorder (ADHD). This study seeks to quantify the combination use of ADHD medications and to understand predictors of combination therapy.

METHODS: Prescription dispensing events were drawn from a U.S. national claims database including over 80 managed-care plans. Patients studied were age 18 or over with at least 1 medical claim with a diagnosis of ADHD (International Classification of Diseases, Ninth Revision, Clinical Modification [ICD-9-CM] code 314.0), a pharmacy claim for …

Cancer Information-Seeking Experiences: The Implications Of Hispanic Ethnicity And Spanish Language, Robin C. Vanderpool, Julie Kornfeld, Lila Finney Rutten, Linda Squiers

Health, Behavior & Society Faculty Publications

BACKGROUND: Strategies to support cancer information-seeking among Hispanics are needed.

METHODS: We analyzed data from the 2005 Health Information National Trends Survey (HINTS) to explore cancer information-seeking experiences among respondents according to ethnicity and language of interview.

RESULTS: Over 80% of Spanish-speaking Hispanics had never looked for cancer information. Compared to English-speaking respondents, Spanish-speaking Hispanics who sought cancer information indicated their search took a lot of effort (67%), was hard to understand (54%), and frustrating (42%). Spanish-speaking Hispanics noted minimal confidence in obtaining cancer information.

CONCLUSIONS: Language and cultural differences must be considered in the design, implementation, and dissemination of …

Differences In Responses Of Platelets To Fluid Shear Stress In Patients With Peripheral Artery Disease (Pad) And Coronary Artery Disease (Cad)., Vijay Nambi, Kay T Kimball, Paul Bray, Angela L Bergeron, Shawna L Johnson, Joel D Morrisett, Changyi Chen, Peter H Lin, Alan B Lumsden, Christie M Ballantyne, Jing-Fei Dong

Cardeza Foundation for Hematologic Research

Information on differences in platelet function between patients with peripheral arterial disease (PAD) and patients with coronary artery disease (CAD) is limited. We sought to examine the differences in the platelets response to shear stress in patients with PAD compared to those with CAD. Men with symptomatic PAD (ankle brachial index [ABI] < 0.9; n = 29) were compared with similarly aged men with CAD (post coronary artery bypass grafting; n = 40) but without PAD. All participants were on aspirin, and none were on clopidogrel. We measured changes in shear-induced platelet aggregation (SIPA) and shear-induced P-selectin expression (SIPE) under fluid shear rates of 5000 and 10,000 s(-1)which are typically found in arterioles and stenosed arteries, respectively. Aggregation was also induced by a combined stimulation of collagen, fluid shear stress, and adenosine diphosphate (ADP) or epinephrine using a platelet function analyzer (PFA-100) as well as optical aggregometry (arachidonic acid, collagen and epinephrine). Analyses of covariance adjusted for age, aspirin dose, and statin use were used to estimate differences between the groups. Values of SIPA at fluid shear rates of 5000 and 10,000 s(-1) were significantly higher in the PAD group, while there were no differences between the PAD and CAD groups in SIPE at both fluid shear rates. However, baseline shear-induced P-selectin expression was higher in patients with PAD than CAD (mean fluorescence intensity [MFI] = 2.93 +/- 1.37 vs.1.94 +/- 0.67; p = 0.01), while the percentage increases in SIPA and SIPE at fluid shear rates of 5000 and 10,000 s(-1) were significantly higher in patients with CAD when compared to PAD (p < 0.001 for all comparisons). Although there were several similarities in platelet function between men with PAD and men with CAD, significant differences in platelet responses to shear stress were observed in men with PAD when compared to those with CAD. Although the mechanism for these observed differences are not clear, we hypothesize that in vivo platelet activation in PAD patients may contribute to the differences and will need to be further investigated.

Long-Term Survival After Multidisciplinary Management Of Resected Pancreatic Adenocarcinoma., Matthew H G Katz, Huamin Wang, Jason B Fleming, Charlotte C Sun, Rosa F Hwang, Robert A Wolff, Gauri Varadhachary, James L Abbruzzese, Christopher H Crane, Sunil Krishnan, Jean-Nicolas Vauthey, Eddie K Abdalla, Jeffrey E Lee, Peter W T Pisters, Douglas B Evans

Journal Articles

INTRODUCTION: Actual 5-year survival rates of 10-18% have been reported for patients with resected pancreatic adenocarcinoma (PC), but the use of multimodality therapy was uncommon in these series. We evaluated long-term survival and patterns of recurrence in patients treated for PC with contemporary staging and multimodality therapy.

METHODS: We analyzed 329 consecutive patients with PC evaluated between 1990 and 2002 who underwent resection. Each received a multidisciplinary evaluation and a standard operative approach. Pre- or postoperative chemotherapy and/or chemoradiation were routine. Surgical specimens of 5-year survivors were re-reviewed. A multivariate model of factors associated with long-term survival was constructed.

RESULTS: …

Transperitoneal Robotic-Assisted Laparoscopic Prostatectomy After Prosthetic Mesh Herniorrhaphy., Costas D. Lallas, Mark L. Pe, Jitesh V. Patel, Pranav Sharma, Leonard G. Gomella, Edouard J. Trabulsi

Department of Urology Faculty Papers

BACKGROUND AND OBJECTIVES: We report our institutional experience performing transperitoneal robotic-assisted laparoscopic prostatectomy (RALP) in patients with prior prosthetic mesh herniorrhaphy to assess the feasibility of this procedure in this patient population. METHODS: From October 2005 to January 2008, transperitoneal robotic-assisted laparoscopic prostatectomies were performed and prospectively recorded. We retrospectively reviewed 309 patients. RESULTS: Twenty-seven patients (8.7%) were found to have a history of prior hernia repair with prosthetic mesh placement. The mean age was 55.7, estimated blood loss (EBL) was 228 mL, operative (console) time was 197 minutes, and length of hospital stay (LOS) was 1.62 days. In contrast, …

Comorbidities, Patient Knowledge, And Disease Management In A National Sample Of Patients With Copd, R Graham Barr, Bartolome R Celli, David M Mannino, Thomas Petty, Stephen I Rennard, Frank C Sciurba, James K Stoller, Byron M Thomashow, Gerard M Turino

Journal Articles

OBJECTIVE: Chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death in the United States but is often undertreated. COPD often overlaps with other conditions such as hypertension and osteoporosis, which are less morbid but may be treated more aggressively. We evaluated the prevalence of these comorbid conditions and compared testing, patient knowledge, and management in a national sample of patients with COPD.

METHODS: A survey was administered by telephone in 2006 to 1003 patients with COPD to evaluate the prevalence of comorbid conditions, diagnostic testing, knowledge, and management using standardized instruments. The completion rate was 87%.

RESULTS: …

Clinical Trial Of Tailored Activity And Eating Newsletters With Older Rural Women., Susan Noble Walker, Carol H. Pullen, Linda Boeckner, Patricia A. Hageman, Melody Hertzog, Maureen K. Oberdorfer, Matthew J. Rutledge

Journal Articles: College of Nursing

BACKGROUND: Unhealthy diet and lack of physical activity increase rural midlife and older women's risk of chronic diseases and premature death, and they are behind urban residents in meeting Healthy People 2010 objectives.

OBJECTIVES: The objective of this study was to compare a tailored intervention based on the Health Promotion Model with a generic intervention to increase physical activity and healthy eating among rural women.

METHODS: In a randomized-by-site, community-based, controlled, clinical trial, Wellness for Women, 225 women aged 50 to 69 years were recruited in two similar rural areas. Over 12 months, women received by mail either 18 generic …

Life Expectancy And Years Of Life Lost In Chronic Obstructive Pulmonary Disease: Findings From The Nhanes Iii Follow-Up Study, Robert M. Shavelle, David R. Paculdo, Scott J. Kush, David M. Mannino, David J. Strauss

Internal Medicine Faculty Publications

RATIONALE: Previous studies have demonstrated that chronic obstructive pulmonary disease (COPD) causes increased mortality in the general population. But life expectancy and the years of life lost have not been reported.

OBJECTIVES: To quantify mortality, examine how it varies with age, sex, and other risk factors, and determine how life expectancy is affected.

METHODS: We constructed mortality models using the Third National Health and Nutrition Examination Survey, adjusting for age, sex, race, and major medical conditions. We used these to compute life expectancy and the years of life lost.

MEASUREMENTS AND MAIN RESULTS: Pulmonary function testing classified patients as having …

Antibiotic Resistance In Staphylococcus Aureus-Containing Cutaneous Abscesses Of Patients With Hiv, Gus W Krucke, Deanna E Grimes, Richard M Grimes, Thai D Dang

Journal Articles

PURPOSE: The aim of this study was to document the resistance patterns found in exudates from cutaneous abscesses of HIV-infected persons.

BASIC PROCEDURES: Patient records were reviewed on 93 culture and sensitivity tests performed on exudates taken from incised and drained abscesses of HIV-infected persons.

MAIN FINDINGS: Of the specimens, 84.6% were Staphylococcus aureus. Of these, 93.5% were penicillin resistant, 87% oxacillin resistant, 84.4% cephazolin resistant, 84.4% erythromycin resistant, 52.2% ciprofloxacin resistant, and 15.6% tetracycline resistant. Fifty-eight specimens were tested for clindamycin with 29.3% found resistant; 85.7% were methicillin-resistant S aureus (MRSA) (defined as resistant to both penicillin G and …

Association Of Gucy2c Expression In Lymph Nodes With Time To Recurrence And Disease-Free Survival In Pn0 Colorectal Cancer., Scott A Waldman, Terry Hyslop, Stephanie Schulz, Alan Barkun, Karl Nielsen, Janis Haaf, Christine Bonaccorso, Yanyan Li, David S Weinberg

Department of Pharmacology and Experimental Therapeutics Faculty Papers

CONTEXT: The established relationship between lymph node metastasis and prognosis in colorectal cancer suggests that recurrence in 25% of patients with lymph nodes free of tumor cells by histopathology (pN0) reflects the presence of occult metastases. Guanylyl cyclase 2C (GUCY2C) is a marker expressed by colorectal tumors that could reveal occult metastases in lymph nodes and better estimate recurrence risk.

OBJECTIVE: To examine the association of occult lymph node metastases detected by quantifying GUCY2C messenger RNA, using the reverse transcriptase-polymerase chain reaction, with recurrence and survival in patients with colorectal cancer.

DESIGN, SETTING, AND PARTICIPANTS: Prospective study of 257 patients …

Multiple Independent Genetic Factors At Nos1ap Modulate The Qt Interval In A Multi-Ethnic Population, Dan E. Arking, Amit Khera, Chao Xing, W H Linda Kao, Wendy Post, Eric Boerwinkle, Aravinda Chakravarti

Journal Articles

Extremes of electrocardiographic QT interval are associated with increased risk for sudden cardiac death (SCD); thus, identification and characterization of genetic variants that modulate QT interval may elucidate the underlying etiology of SCD. Previous studies have revealed an association between a common genetic variant in NOS1AP and QT interval in populations of European ancestry, but this finding has not been extended to other ethnic populations. We sought to characterize the effects of NOS1AP genetic variants on QT interval in the multi-ethnic population-based Dallas Heart Study (DHS, n = 3,072). The SNP most strongly associated with QT interval in previous samples …

Iatrogenic Bile Duct Injury Associated With Anomalies Of The Right Hepatic Sectoral Ducts: A Misunderstood And Underappreciated Problem, Nitin Babel, Sujit Vijay Sakpal, Prakash Paragi, Jason Wellen, Stephen Feldman, Ronald Scott Chamberlain

Department of Surgery

Although laparoscopic cholecystectomy (LC) has been widely accepted as the standard of care, it continues to have a higher complication rate than open cholecystectomy. Bile duct injury with LC has often been attributed to surgical inexperience, but it is also clear that aberrant bile ducts are present in a significant number of patients who sustain biliary injuries during these procedures. We present three cases of right sectoral hepatic duct injuries which occurred during LC and provide a discussion of the conditions which are likely to lead to these injuries, as part of a strategy to prevent them.

Aging And Endothelial Progenitor Cell Telomere Length In Healthy Men, Erich J Kushner, Gary Van Guilder, Owen J Maceneaney, Jennifer N Cech, Brian L Stauffer, Christopher A Desouza

Health and Nutritional Sciences Faculty Publications

BACKGROUND: Telomere length declines with age in mature endothelial cells and is thought to contribute to endothelial dysfunction and atherogenesis. Bone marrow-derived circulating endothelial progenitor cells (EPCs) are critical to vascular health as they contribute to both reendothelialization and neovascularization. We tested the hypothesis that EPC telomere length decreases with age in healthy adult humans.
METHODS: Peripheral blood samples were collected from 40 healthy, non-obese, sedentary men: 12 young (age 21-34 years), 12 middle-aged (43-55 years) and 16 older (57-68 years). Putative EPCs were isolated from peripheral blood mononuclear cells and telomere length was determined using genomic DNA preparation and …

A Glycosylated Recombinant Human Granulocyte Colony Stimulating Factor Produced In A Novel Protein Production System (Avi-014) In Healthy Subjects: A First-In Human, Single Dose, Controlled Study., Roslyn Varki, Ed Pequignot, Mark C Leavitt, Andres Ferber, Walter K Kraft

Department of Pharmacology and Experimental Therapeutics Faculty Papers

BACKGROUND: AVI-014 is an egg white-derived, recombinant, human granulocyte colony-stimulating factor (G-CSF). This healthy volunteer study is the first human investigation of AVI-014. METHODS: 24 male and female subjects received a single subcutaneous injection of AVI-014 at 4 or 8 mcg/kg. 16 control subjects received 4 or 8 mcg/kg of filgrastim (Neupogen, Amgen) in a partially blinded, parallel fashion. RESULTS: The Geometric Mean Ratio (GMR) (90% CI) of 4 mcg/kg AVI-014/filgrastim AUC(0-72 hr) was 1.00 (0.76, 1.31) and Cmax was 0.86 (0.66, 1.13). At the 8 mcg/kg dose, the AUC(0-72) GMR was 0.89 (0.69, 1.14) and Cmax was 0.76 (0.58, …