Medicine and Health Sciences Commons^™

A Prospective Evaluation Of The Relationships Between Smoking Dosage And Body Mass Index In An Adolescent, Biracial Cohort., Theodore Cooper, R. Klesges, L. Robinson, S. Zbikowski

Departmental Papers (Psych)

No abstract provided.

A Priori Prediction Of Disease Invasion Dynamics In A Novel Environment, Colin A. Russell, David L. Smith, Lance A. Waller, James E. Childs, Leslie A. Real

Zoonotics and Wildlife Disease: Publications

Directly transmitted infectious diseases spread through wildlife populations as travelling waves away from the sites of original introduction. These waves often become distorted through their interaction with environmental and population heterogeneities and by long-distance translocation of infected individuals. Accurate a priori predictions of travelling waves of infection depend upon understanding and quantifying these distorting factors. We assess the effects of anisotropies arising from the orientation of rivers in relation to the direction of disease-front propagation and the damming effect of mountains on disease movement in natural populations. The model successfully predicts the local and large-scale prevaccination spread of raccoon rabies …

Adolescent Sexuality: Behavior And Meaning, Lisa J. Crockett, Marcela Raffaelli, Kristin L. Moilanen

Department of Psychology: Faculty Publications

The emerging sexuality that accompanies adolescence poses fundamental challenges for young people. These include adjusting to the altered appearance and functioning of a sexually maturing body, learning to deal with sexual desires, confronting sexual attitudes and values, experimenting with sexual behaviors, and integrating these feelings, attitudes, and experiences into a developing sense of self. The challenge is accentuated by the unfamiliar excitement of sexual arousal, the attention connected to being sexually attractive, and the new level of physical intimacy and psychological vulnerability created by sexual encounters. Adolescents’ responses to these challenges are profoundly influenced by the social and cultural context …

Susceptibility Scoring In Family-Based Association Testing, Laila M. Poisson, Benjamin A. Rybicki, Steven W. Coon, Jill S. Barnholtz-Sloan, Gary A. Chase

Wayne State University Associated BioMed Central Scholarship

Abstract

Background

Family-based association testing is an important part of genetic epidemiology. Tests are available to include multiple siblings, unaffected offspring, and to adjust for environmental covariates. We explore a susceptibility residual method of adjustment for covariates.

Results

Through simulation, we show that environmental adjustments that down-weight persons who are "destined" to be affected decrease the power to detect genetic association. We used the residual adjusted method on the Framingham Heart Study offspring data, provided for Genetic Analysis Workshop 13, and got mixed results.

Conclusion

When the genetic effect and environmental effects are independent, a susceptibility residual method of adjustment …

Analysis Of Gene × Environment Interactions In Sibships Using Mixed Models, Jill S. Barnholtz-Sloan, Laila M. Poisson, Steven W. Coon, Gary A. Chase, Benjamin A. Rybicki

Wayne State University Associated BioMed Central Scholarship

Abstract

Background

Gene × environment models are widely used to assess genetic and environmental risks and their association with a phenotype of interest for many complex diseases. Mixed generalized linear models were used to assess gene × environment interactions with respect to systolic blood pressure on sibships adjusting for repeated measures and hierarchical nesting structures. A data set containing 410 sibships from the Framingham Heart Study offspring cohort (part of the Genetic Analysis Workshop 13 data) was used for all analyses. Three mixed gene × environment models, all adjusting for repeated measurement and varying levels of nesting, were compared for …

Educating Adolescents About Puberty: What Are We Missing?, Hatim A. Omar, Darby H. Mcelderry, Rana M. Zakharia

Pediatrics Faculty Publications

Adolescents undergo significant physical and cognitive changes during their pubertal development. These changes contribute to and impact their future development. Educating adolescents at an early age about their expected development decreases the possible anxiety associated with this period of life and also helps adolescents make better choices in regards to their sexuality. In order to assess the degree of education regarding pubertal development and sexuality, we conducted a survey of late adolescents (Median age 19 years) and parents of adolescents. A total of 409 adolescents (237 females, 172 males) and 124 parents completed the survey. 14.4% of teens (36.6% of …

Review Of Cure: A Story Of Cancer And Politics From The Annals Of The Cold War, John Brantley

Faculty & Staff Research & Creative Activity

No abstract provided.

Department Of Veterinary And Biomedical Sciences: Vbms Annual Report 2003

School of Veterinary and Biomedical Sciences: Information and History

Foreword
VBMS Faculty
VBMS Faculty and Staff, by Function and Unit
Honors. Awards and Recognitions
VBMS Committee Assignments
Faculty Profiles
VBMS Research Associates Profiles
VBMS Teaching Program
Great Plains Veterinary Educational Center (GPVEC)
VBMS Research Program
International Activities
Veterinary Extension Program
Nebraska Veterinary Diagnostic Laboratory Systems (NVDLS)
Grants and Contracts Program
Patents by VBMS Faculty
Publications by VBMS Faculty
Presentations by VBMS Faculty
Articles Regarding the Department
Selected Committees. Editorial and Other Appointments
Departmental Budget Summaries
Nebraska Agricultural Statistics

The Ascendancy Of Amblyomma Americanum As A Vector Of Pathogens Affecting Humans In The United States, James E. Childs, Christopher D. Paddock

United States Public Health Resources

Until the 1990s, Amblyomma americanum was regarded primarily as a nuisance species, but a tick of minor importance as a vector of zoonotic pathogens affecting humans. With the recent discoveries of Ehrlichia chaffeensis, Ehrlichia ewingii, and “Borrelia lonestari,” the public health relevance of lone star ticks is no longer in question. During the next 25 years, the number of cases of human disease caused by A. americanum-associated pathogens will probably increase. Based on current trajectories and historic precedents, the increase will be primarily driven by biological and environmental factors that alter the geographic distribution and intensity of …

Sodium Tanshinone Iia Sulfonate Mediates Electron Transfer Reaction In Rat Heart Mitochondria, Guangyin Zhou, Wen Jiang, Yan Zhao, Guangén Ma, Wenjuan Xin, Junjie Yin, Baolu Zhao

United States Public Health Resources

In this paper, an electron transfer reaction mediated by sodium tanshinone IIA sulfonate (STS) was studied in rat heart mitochondria. It was found that STS could stimulate mitochondrial NADH oxidation dose-dependently and partly restore NADH oxidation in the presence of respiratory inhibitor (rotenone or antimycin A or KCN). It was likely that STS could accept electrons from complex I similar to ferricyanide and could be converted to its semiquinone form that could then reduce oxygen molecule. The data also showed that cytochrome c (Cyt c) could be reduced by STS in the presence of KCN, or STS could transfer the …

A Preliminary Linkage Map Of The Hard Tick, Ixodes Scapularis, A. J. Ullmann, J. Piesman, M. C. Dolan, W. C. Black Iv

United States Public Health Resources

Blackwell Publishing Ltd. A linkage map of the Ixodes scapularis genome was constructed, based upon segregation amongst 127 loci. These included 84 random amplified polymorphic DNA (RAPD) markers, 32 Sequence-Tagged RAPD (STAR) markers, 5 cDNAs, and 5 microsatellites in 232 F₁ intercross progeny from a single, field-collected P₁ female. A preliminary linkage map of 616 cM was generated across 14 linkage groups with one marker every 10.8 cM. Assuming a genome size of ~ 10 ⁹ bp, the relationship of physical to genetic distance was found to be ~ 300 kb/cM in the I. scapularis genome.

Absence Of Interferon-Γ–Inducible Gene Igtp Does Not Significantly Alter The Development Of Chagasic Cardiomyopathy In Mice Infected With Trypanosoma Cruzi (Brazil Strain), A. P. De Souza, B. Tang, H. B. Tanowitz, S. M. Factor, V. Shtutin, J. Shirani, G. A. Taylor, L. M. Weiss, L. A. Jelicks

United States Public Health Resources

Interferon-γ (IFN-γ) contributes to host resistance during acute infection with Trypanosoma cruzi, the causative agent of Chagas’ disease. Inducibly expressed guanosine triphosphatase (IGTP), a 48-kDa guanosine triphosphatase (GTPase), is a member of a family of GTPase proteins inducibly expressed by IFN-γ. The expression pattern of IGTP suggests that it may mediate IFN-γ–induced responses in a variety of cell types. IGTP has been demonstrated to be important for control of Toxoplasma gondii infection but not for resistance against Listeria monocytogenes. We evaluated the role of IGTP in development of chronic chagasic cardiomyopathy in IGTP null mice and C57X129sv (wild …

Accuracy Of Six Commercially Available Systems For Identification Of Members Of The Family Vibrionaceae, Caroline M. O’Hara, Evangeline G. Sowers, Cheryl A. Bopp, Sarah B. Duda, Nancy A. Strockbine

United States Public Health Resources

Six commercially available bacterial identification products were tested with Vibrio alginolyticus (12 strains), V. cholerae (30 strains), Photobacterium (Vibrio) damselae (10 strains), V. fluvialis (10 strains), V. furnissii (4 strains), V. hollisae (10 strains), V. metschnikovii (9 strains), V. mimicus (10 strains), V. parahaemolyticus (30 strains), and V. vulnificus (10 strains) to determine the accuracy of each system for identification. The products included API 20E, Crystal E/NF, MicroScan Neg ID2 and Rapid Neg ID3, and Vitek GNI+ and ID-GNB. Each product was tested only with those species that were listed in its database. Overall, the systems correctly …

Estimated Risk Of Transmission Of The West Nile Virus Through Blood Transfusion In The Us, 2002, Brad J. Biggerstaff, Lyle R. Petersen

United States Public Health Resources

BACKGROUND: The West Nile virus (WNV) epidemic in 2002 in the US saw over 3300 reported human cases of WNV disease, with over 2300 reported cases of WNV encephalitis and meningitis. The first documented cases of transfusion transmission of WNV through voluntary blood donation also occurred.

STUDY DESIGN AND METHODS: Case onset dates from the 2002 WNV epidemic in the US were used to estimate the risk of transfusion-associated transmission with statistical resampling. An easily computed approximating formula for the mean risk was derived. Estimates were computed for six high-incidence states and metropolitan areas.

RESULTS: Mean and …

Incidence Of Ovarian Cancer By Race And Ethnicity In The United States, 1992–1997, Marc T. Goodman, Holly L. Howe, Ko Hui Tung, Joellyn Hotes, Barry A. Miller, Steven S. Coughlin, Vivien W. Chen

United States Public Health Resources

Ovarian cancer is the fifth most common cancer among U.S. women.¹ An estimated 23,400 new cases were expected to be diagnosed in the U.S. in 2001. As is the case for breast and endometrial cancers, ovarian cancer is more common among women in northern and central Europe, and North America compared with Africa, South America, and Asia.² In the U.S., substantial racial and ethnic variations also are observed in the incidence of ovarian cancer. rates reportedly are highest among non-Hispanic white and American Indian women, and are lower among Hispanic, Native Hawaiian, and Asian women.³ Among white …

Inhibition Of Markers Of Hepatic Stellate Cell Activation By The Hormone Relaxin, Robert G. Bennett, Kusum K. Kharbanda, Dean J. Tuma

United States Public Health Resources

Hepatic fibrois results from excess extracellular matrix produced primarily by hepatic stellate cells (HSC). In response to injury, HSC differentiate to a myofibroblastic phenotype expressing smooth muscle actin and fibrillar collagens. Relaxin is a polypeptide hormone shown to have antifibrotic effects in fibrosis models. In this study, activated HSC from rat liver were treated with relaxin to determine if relaxin can reverse markers of HSC activation. Relaxin treatment resulted in a decrease in the expression of smooth muscle actin, but had no effect on cell proliferation rate. The levels of total collagen and type I collagen were reduced, while the …

Ethanol Consumption Decreases The Synthesis Of The Mannose 6-Phosphatelinsulin-Like Growth Factor Ii Receptor But Does Not Decrease Its Messenger Rna, James Haorah, Richard Macdonald, Julie A. Stoner, Terrence M. Donohue, Jr.

United States Public Health Resources

The mannose 6-phosphatelinsulin-like growth factor I1 receptor (M6P/IGF-IIR) is a protein that facilitates the transport of acid hydrolases into the lysosome. We have shown that chronic ethanol consumption lowers the M6P/IGF-IIR content in rat hepatocytes. Here, we determined the steady-state level of mRNA encoding M6P/IGF-IIR, as well as the rate of receptor synthesis, to ascertain whether the ethanol-elicited reduction in receptor protein content is related to changes in either or both of these parameters. Rats were pair-fed the normal carbohydrate (NC) or low carbohydrate high-fat (LC) liquid diets containing either ethanol or isocaloric maltose-dextrin for 7-8 weeks. RNA was isolated …

Impaired Receptor-Mediated Endocytosis By The Asialoglycoprotein Receptor In Ethanol-Fed Mice: Implications For Studying The Role Of This Receptor In Alcoholic Apoptosis, Shana R. Dalton, Robert L. Wiegert, Cheryl R. Baldwin, Karen M. Kassel, Carol A. Casey

United States Public Health Resources

During receptor-mediated endocytosis (RME), extracellular molecules are internalized after being recognized and bound to specific cell surface receptors. In previous studies of the asialoglycoprotein receptor (ASGPR) in rats, we showed that ethanol impairs RME at multiple ASGPR sites. Ethanol administration has been shown to increase apoptosis, and we demonstrated increased sensitization to apoptotic induction in hepatocytes from ethanol-fed rats. Although a physiological role for the ASGPR has not been identified, investigators have shown its involvement in the uptake/clearance of apoptotic cells in vitvo. This suggests a potential role for the ASGPR in the removal of apoptotic cells, and the recent …

Acute Pesticide-Related Illnesses Among Working Youths, 1988–1999, Geoffrey M. Calvert, Louise N. Mehler, Rachel Rosales, Lynden Baum, Catherine Thomsen, Dorilee Male, Omar Shafey, Rupali Das, Michelle Lackovic, Ernest Arvizu

United States Public Health Resources

Objectives. The goal of this study was to describe acute occupational pesticide-related illnesses among youths and to provide prevention recommendations.
Methods. Survey data from 8 states and from poison control center data were analyzed. Illness incidence rates and incidence rate ratios were calculated.
Results. A total of 531 youths were identified with acute occupational pesticide-related illnesses. Insecticides were responsible for most of these illnesses (68%), most of which were of minor severity (79%). The average annual incidence rate among youths aged 15 to 17 years was 20.4 per billion hours worked, and the incidence rate ratio among youths vs adults …

Interferon Gamma Enhances Proteasome Activity In Recombinant Hep G2 Cells That Express Cytochrome P4502e1: Modulation By Ethanol, Natalia A. Osna, Dahn L. Clemens, Terrence M. Donohue Jr.

United States Public Health Resources

We tested the influence of IFNγ on proteasome activity in parental Hep G2 cells that do not metabolize ethanol, as well as in recombinant Hep G2-derived cells that express either or both alcohol dehydrogenase (ADH) and cytochrome P4502E1 (CYP2E1). IFNγ treatment increased proteasome activity in VL-17A (ADH⁺, CYP2E1⁺) and E-47 (CYP2E1⁺) cells, but not in Hep G2, VI-R2 (parental cells with empty vectors) or in VA-13 (ADH⁺) cells. Proteasome activation by IFNγ correlated positively with the level of CYP2E1 activity. Treatment of VL-17A cells with agents that inhibit CYP2E1 or the inducible …

What Affects Influenza Vaccination Rates Among Older Patients? An Analysis From Inner-City, Suburban, Rural, And Veterans Affairs Practices, Richard Kent Zimmerman, Tammy A. Santibanez, Janine E. Janosky, Michael J. Fine, Mahlon Raymund, Stephen A. Wilson, Inis Jane Bardella, Anne R. Medsger, Mary Patricia Nowalk

United States Public Health Resources

BACKGROUND: Despite strong evidence of the effectiveness of influenza vaccination, immunization rates have reached a plateau that is below the 2010 national goals. Our objective was to identify facilitators of, and barriers to, vaccination in diverse groups of older patients.
METHODS: A survey was conducted in 2000 by computer-assisted telephone interviewing of patients from inner-city health centers, Veterans Affairs (VA) outpatient clinics, rural practices, and suburban practices. The inclusion criteria were age ≥66 years and an office visit after September 30, 1998.
RESULTS: Overall, 1007 (73%) interviews were completed among 1383 patients. Influenza vaccination rates were 91% at VA clinics, …

Chronic Ethanol Consumption Impairs Receptor-Mediated Endocytosis Of Maa-Modified Albumin By Liver Endothelial Cells, Michael J. Duryee, Lynell W. Klassen, Thomas L. Freeman, Monte S. Willis, Dean J. Tuma, Geoffrey M. Thiele

United States Public Health Resources

Alcoholic liver disease has been associated with abnormalities in receptor-mediated endocytosis (RME) which results in abnormal degradation of metabolically altered proteins. Model systems using formaldehyde-modified albumin (f-Alb) have shown an impairment in RME following chronic alcohol consumption utilizing both in situ perfused rat livers and isolated rat liver endothelial cells (LECs). The discovery that alcohol metabolite derived aldehydes can modify proteins prompted a study to determine if malondialdehyde– acetaldehyde-modified albumin (MAA-Alb) would be degraded similar to that reported for f-Alb, and whether ethanol-fed rats would demonstrate an impaired RME with respect to this ligand which occurs as a consequence of …

Ham-Tmc Facts And Figures 2002-2003, Houston Academy Of Medicine-Texas Medical Center Library

Library Statistics

No abstract provided.

Bovine Tuberculosis In Michigan: Understanding Stakeholder Attitudes Toward The Disease And Eradication Efforts, Meegan Leah Dorn

Michigan Bovine Tuberculosis Bibliography and Database

Bovine tuberculosis has been discovered at unprecedented levels in Michigan wildlife, especially white-tailed deer (Odocoileus virginianus). Human behaviors, particularly the use of bait and feed, have facilitated the spread of the disease into free-ranging white-tailed deer populations. Policies aimed at eradicating bovine tuberculosis in Michigan require public compliance and cooperation in order to be successful. Because of the human contribution to the spread of bovine tuberculosis in Michigan wildlife, and the social nature of subsequent bovine tuberculosis eradication policies, we conducted a survey of bovine TB issue stakeholder groups in northeast Michigan, including non-resident hunters, resident hunters, livestock …

Bovine Tuberculosis In Elk (Cervus Elaphus Manitobensis) Near Riding Mountain National Park, Manitoba, From 1992 To 2002

Michigan Bovine Tuberculosis Bibliography and Database

From 1991 to April 2003, outbreaks of bovine tuberculosis (TB caused by Mycobacterium bovis) have been found in 11 cattle herds surrounding Riding Mountain National Park (RMNP). Located in southwestern Manitoba, RMNP and the surrounding area are home to a free-ranging herd of 2500 to 4000 elk that have been implicated as being a wildlife reservoir of M. bovis infection. Indirect contact between cattle and elk that feed during the winter on the same large, round hay bales is presumed to be the most likely mode of transmission between the species (1).

Prevalence Of Chronic Wasting Disease And Bovine Tuberculosis In Free-Ranging Deer And Elk In South Dakota, Christopher N. Jacques, Jonathan A. Jenks, Allen L. Jenny, Steven L. Griffin

Michigan Bovine Tuberculosis Bibliography and Database

Heads of hunter-harvested deer and elk were collected throughout South Dakota (USA) and within established chronic wasting disease (CWD) surveillance areas from 1997–2002 to determine infection with CWD and bovine tuberculosis (TB). We used immunohistochemistry to detect CWD-infected individuals among 1,672 deer and elk sampled via geographically targeted surveillance. A total of 537 elk (Cervus elaphus nelsoni), 813 white-tailed deer (Odocoileus virginianus), and 322 mule deer (O. hemionus) was sampled for CWD. Estimated overall prevalence and associated confidence intervals (95%) in white-tailed deer was 0.001% (0–0.007%). Similarly, estimated overall prevalence in elk and mule …

Spatial And Temporal Spread Of Bovine Tuberculosis In Wild White-Tailed Deer In Michigan, Graham J. Hickling, Stephen M. Schmitt, Daniel J. O'Brien

Michigan Bovine Tuberculosis Bibliography and Database

In 1975, a wild white-tailed deer infected with bovine tuberculosis was shot in the northeastern Lower Peninsula, Michigan. The shooting of a second infected deer in the same area in 1994 triggered ongoing disease surveillance in the region. By 2002, bovine tuberculosis had been confirmed in 12 Michigan counties: from 449 deer; two elk; 41 non-cervid wildlife; one captive cervid facility and 28 cattle herds. We analyzed geographic spread of disease since the surveillance began and investigated factors influencing the prevalence of disease within the infected area. These analyses reveal that 78 percent of tuberculous deer came from within a …

Mycobacterial Diseases In Wildlife, Gary Witmer, Thomas J. Deliberto, Kurt C. Vercauteren, Peter Butchko

Michigan Bovine Tuberculosis Bibliography and Database

Mycobacterium infections occur in numerous wildlife species worldwide and this bacterial genus can also cause disease in humans and livestock. Two Mycobacterium species and one subspecies that infect wildlife are important from a wildlife damage management perspective. Mycobacterium avium, avian tuberculosis, is a ubiquitous and cosmopolitan disease of wild and domestic birds. Wild and domestic ruminants are host to M. avium paratuberculosis, also known as Johne’s disease. Finally, Mycobaterium bovis, bovine tuberculosis, is primarily associated with domestic and wild bovines and ungulates, but also infects many other species of mammals. Eradicating these diseases from wildlife populations is …

Mycobacterial Diseases In Wildlife, Gary W. Witmer, Thomas J. Deliberto, Kurt C. Vercauteren, Peter Butchko

Michigan Bovine Tuberculosis Bibliography and Database

Mycobacterium infections occur in numerous wildlife species worldwide and this bacterial genus can also cause disease in humans and livestock. Two Mycobacterium species and one subspecies that infect wildlife are important from a wildlife damage management perspective. Mycobacterium avium, avian tuberculosis, is a ubiquitous and cosmopolitan disease of wild and domestic birds. Wild and domestic ruminants are host to M. avium paratuberculosis, also known as Johne’s disease. Finally, Mycobaterium bovis, bovine tuberculosis, is primarily associated with domestic and wild bovines and ungulates, but also infects many other species of mammals. Eradicating these diseases from wildlife populations is …

Police Training And Specialized Approaches For Responding To People With Mental Illnesses, Judy Hails, Randy Borum

Mental Health Law & Policy Faculty Publications

Eighty-four medium and large law enforcement agencies reported the amount of training provided on mental-health-related issues and the use of specialized responses for calls involving people with mental illnesses. Departments varied widely in the amount of training provided on mental-health-related topics, with a median of 6.5 hours for basic recruits and 1 hour for in-service training. Approximately one third of the agencies (32%) had some specialized response for dealing with calls involving people with mental illnesses. Twenty-one percent had a special unit or bureau within the department to assist in responding to these calls; 8% had access to a mental …