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Full-Text Articles in Public Health

Human Risk Of Infection With Borrelia Burgdorferi, The Lyme Disease Agent, In Eastern United States, Maria A. Diuk-Wasser, Anne Gatewood Hoen, Paul Cislo, Robert Brinkerhoff, Sarah A. Hamer, Michelle Rowland, Roberto Cortinas, Gwenaël Vourc’H, Forrest S. Melton, Graham J. Hickling, Jean I. Tsao, Jonas Bunikis, Alan G. Barbour, Uriel Kitron, Joseph Piesman, Durland Fish Jan 2012

Human Risk Of Infection With Borrelia Burgdorferi, The Lyme Disease Agent, In Eastern United States, Maria A. Diuk-Wasser, Anne Gatewood Hoen, Paul Cislo, Robert Brinkerhoff, Sarah A. Hamer, Michelle Rowland, Roberto Cortinas, Gwenaël Vourc’H, Forrest S. Melton, Graham J. Hickling, Jean I. Tsao, Jonas Bunikis, Alan G. Barbour, Uriel Kitron, Joseph Piesman, Durland Fish

Department of Entomology: Faculty Publications

The geographic pattern of human risk for infection with Borrelia burgdorferi sensu stricto, the tick-borne pathogen that causes Lyme disease, was mapped for the eastern United States. The map is based on standardized field sampling in 304 sites of the density of Ixodes scapularis host-seeking nymphs infected with B. burgdorferi, which is closely associated with human infection risk. Risk factors for the presence and density of infected nymphs were used to model a continuous 8 km × 8 km resolution predictive surface of human risk, including confidence intervals for each pixel. Discontinuous Lyme disease risk foci were identified in …


Synthesizing Parasitology With Archaeology In Paleopathology, Karl Reinhard, Adauto Araujo Jan 2012

Synthesizing Parasitology With Archaeology In Paleopathology, Karl Reinhard, Adauto Araujo

Karl Reinhard Publications

Parasitology is the study of organisms that are symbiotic with other organisms. In this form of symbiosis, the parasite species by definition benefits from the interaction while the host is harmed to some degree. In actuality, some parasites benefit their hosts. The animals traditionally studied by parasitologists range from protozoa to arthropods, and include all types of internal and external worms. Ticks, fleas, lice, and a variety of insects that transmit parasites are also studied by parasitologists. Recently, a more holistic view of parasitism appeared, including bacteria and viruses. In essence, parasitology is the study of a certain kind of …


School Program Planning To Increase Active Transport To School, Brenda Aguilar Jan 2012

School Program Planning To Increase Active Transport To School, Brenda Aguilar

McNair Poster Presentations

Studies have shown that active transport is known to increase physical activity of children, decrease traffic congestion and the production of greenhouse gasses. This study examines active transport to school (ATS) [walking, biking, or other self-powered wheels to school] among elementary students. Through the Nevada Moves Day program an increase proportion of elementary students who use ATS was expected.

This study was done at two elementary schools, one being the intervention school that participated in the Nevada Moves Day, and a control school, which did not participate. Data was collected over a three week period. Students using active transport and …


Cloning Of The Gene, Purification As Recombinant Protein And Functional Characterization Of Leishmania Mexicana Cytochrome B5 Reductase, Ala Azhari Jan 2012

Cloning Of The Gene, Purification As Recombinant Protein And Functional Characterization Of Leishmania Mexicana Cytochrome B5 Reductase, Ala Azhari

USF Tampa Graduate Theses and Dissertations

Leishmania are protozoan parasites that are transmitted by a sand fly vector. These parasites affect not only humans but also wild animals including domestic dogs and rodents, which form an additional challenge and public health problem to control the disease. Leishmaniasis is an important disease with worldwide distribution, including Saudi Arabia, the Middle East, and other tropical and subtropical areas around the world. Due to the expansion of irrigation and agricultural activities, more exposure to sand fly occurs, which leads to the expansion of leishmaniasis infections as newly emerging disease.

Emerging drug resistance in leishmaniasis is an additional problem, contributed …


The Murine Caecal Microrna Signature Depends On The Presence Of The Endogenous Microbiota, Natasha Singh, Elize A. Shirdel, Levi Waldron, Regan-Heng Zhang, Igor Jurisica, Elena M. Comelli Dec 2011

The Murine Caecal Microrna Signature Depends On The Presence Of The Endogenous Microbiota, Natasha Singh, Elize A. Shirdel, Levi Waldron, Regan-Heng Zhang, Igor Jurisica, Elena M. Comelli

Publications and Research

The intestinal messenger RNA expression signature is affected by the presence and compo-sition of the endogenous microbiota, with effects on host physiology. The intestine is also characterized by a distinctive micronome. However, it is not known if microbes also impact intestinal gene expression epigenetically. We investigated if the murine caecal microRNA expression signature depends on the presence of the microbiota, and the potential implica-tions of this interaction on intestinal barrier function. Three hundred and thirty four mi-croRNAs were detectable in the caecum of germ-free and conventional male mice and 16 were differentially expressed, with samples from the two groups clustering …


Chhs December 2011 E-Newsletter, Dr. John Bonaguro, Dean, Vashon S. Wells, Editor, Wku College Of Health And Human Services, Western Kentucky University Dec 2011

Chhs December 2011 E-Newsletter, Dr. John Bonaguro, Dean, Vashon S. Wells, Editor, Wku College Of Health And Human Services, Western Kentucky University

College of Health & Human Services Publications

No abstract provided.


Effect Of A Work Site Exercise Program On Selected Fitness And Psychological Parameters, Kristen Ann Christiansen Dec 2011

Effect Of A Work Site Exercise Program On Selected Fitness And Psychological Parameters, Kristen Ann Christiansen

UNLV Theses, Dissertations, Professional Papers, and Capstones

The increasing rates of obesity continue to threaten the vitality of our nation. Health care costs are soaring and chronic diseases are reaching even the youngest populations. Physical activity is an integral component in reversing the obesity epidemic and improving the health of today's workforce. The present study sought to determine the effect of a work site exercise program on select fitness and psychological parameters. Five female employees participated in a six-week exercise program utilizing HealthBeat(TM) outdoor exercise equipment in a circuit fashion for 30 minutes, 2 days per week. Eighty percent of participants were categorized as sedentary or low-active …


The Effect Of Six Weeks Of Oral Echinacea Supplementation On Erythropoiesis, Nitric Oxide Production, And Exercise Performance, Tyler David Martin Dec 2011

The Effect Of Six Weeks Of Oral Echinacea Supplementation On Erythropoiesis, Nitric Oxide Production, And Exercise Performance, Tyler David Martin

Dissertations

The purpose of the present study was to investigate the effect of six weeks of oral Echinacea supplementation on serum erythropoietin (EPO) and erythropoietic status, plasma nitric oxide [NO], submaximal endurance exercise performance, and maximal oxygen uptake (V˙O2max). Twenty-four males (mean ± SE): age = 25.2 ± 1.4 yr, height = 178.1 ± 1.4 cm, mass = 78.1 ± 1.6 kg, percent body fat = 12.7 ± 0.9 %, V˙Omax = 52.9 ± 0.9 mL·kg-1·min-1 were randomly grouped using a matched-pair, double-blind design and self-administered 8,000 mg·d-1(5 × 400 mg × 4 …


An Examination Of Diet, Acculturation And Risk Factors For Heart Disease Among Jamaican Immigrants, Carol Renee Oladele Nov 2011

An Examination Of Diet, Acculturation And Risk Factors For Heart Disease Among Jamaican Immigrants, Carol Renee Oladele

USF Tampa Graduate Theses and Dissertations

Background: The South Florida region is home to over 85,000 Jamaican immigrants. Yet, little is known about the dietary intakes and predictors of risk of disease within this immigrant group. An assessment of dietary intakes and the development of dietary intake methodologies specific to the Jamaican population was important as it permitted accurate estimation of the nutrient intakes of this immigrant population whose dietary habits are not well documented. In addition, nothing is known about the prevalence of risk factors for heart disease or factors influencing risk factors among this immigrant group. The purpose of this study was to assess …


Mountains Of Injustice : Social And Environmental Justice In Appalachia, Michele Morrone, Geoffrey L. Buckley Nov 2011

Mountains Of Injustice : Social And Environmental Justice In Appalachia, Michele Morrone, Geoffrey L. Buckley

Ohio University Press Open Access Books

Research in environmental justice reveals that low-income and minority neighborhoods in our nation’s cities are often the preferred sites for landfills, power plants, and polluting factories. Those who live in these sacrifice zones are forced to shoulder the burden of harmful environmental effects so that others can prosper. Mountains of Injustice broadens the discussion from the city to the country by focusing on the legacy of disproportionate environmental health impacts on communities in the Appalachian region, where the costs of cheap energy and cheap goods are actually quite high.

Through compelling stories and interviews with people who are fighting for …


Large-Scale Use Of Mosquito Larval Source Management For Malaria Control In Africa: A Cost Analysis, Eve Worrall, Ulrike Fillinger Nov 2011

Large-Scale Use Of Mosquito Larval Source Management For Malaria Control In Africa: A Cost Analysis, Eve Worrall, Ulrike Fillinger

All Peer-Reviewed Publications

Background: At present, large-scale use of two malaria vector control methods, long-lasting insecticidal nets (LLINs) and indoor residual spraying (IRS) is being scaled up in Africa with substantial funding from donors. A third vector control method, larval source management (LSM), has been historically very successful and is today widely used for mosquito control globally, except in Africa. With increasing risk of insecticide resistance and a shift to more exophilic vectors, LSM is now under re-evaluation for use against afro-tropical vector species. Here the costs of this intervention were evaluated. Methods. The 'ingredients approach' was used to estimate the economic and …


Use Of Optimal Control Models To Predict Treatment Time For Managing Tick-Borne Disease, Holly D. Gaff, Elsa Schaefer, Suzanne Lenhart Sep 2011

Use Of Optimal Control Models To Predict Treatment Time For Managing Tick-Borne Disease, Holly D. Gaff, Elsa Schaefer, Suzanne Lenhart

Biological Sciences Faculty Publications

Tick-borne diseases have been on the rise recently, and correspondingly, there is an increased interest in implementing control measures to decrease the risk. Optimal control provides an ideal tool to identify the best method for reducing risk while accounting for the associated costs. Using a previously published model, a variety of frameworks are assessed to identify the key factors influencing mitigation strategies. The level and duration of tick-reducing efforts are key metrics for understanding the successful reduction in tick-borne disease incidence. The results show that the punctuated nature of the tick's life history plays a critical role in reducing risk …


The Use Of Chloramines To Eradicate Quagga Mussel Larvae, Trea Lacroix, Kumud Acharya Aug 2011

The Use Of Chloramines To Eradicate Quagga Mussel Larvae, Trea Lacroix, Kumud Acharya

Undergraduate Research Opportunities Program (UROP)

Quagga Mussels, Dressenia bugensis, are a growing problem in the western United States, particularly in their ability to infest underwater infrastructures and clog water intake pipes and screens of power and treatment plants. Chlorine has been found to be the most effective chemical to get rid of veligers (planktonic larval form of quagga mussels) in the pipes. However, chlorine leaves a residue called trihalomethane, which is a carcinogen at higher concentrations. The purpose of this project is to test the effectiveness of an alternate chemical, chloramines (chlorine and ammonia), which leaves behind little to no residual trihalomethane. Upon experimentation with …


Regulation Of The Shigella Flexneri Icsp Gene And H-Ns Dependent Repression, Rosa Ojeda, Amanda Wigley, Dustin Harrison, Helen Wing Aug 2011

Regulation Of The Shigella Flexneri Icsp Gene And H-Ns Dependent Repression, Rosa Ojeda, Amanda Wigley, Dustin Harrison, Helen Wing

Undergraduate Research Opportunities Program (UROP)

The gram negative bacterium Shigella flexneri is known to cause dysentery in humans and primates. In order to help prevent the spread of shigellosis, gene regulation must be understood. Studies show that the virulence genes in S .flexneri are thermo regulated. At 30°C histone-like nucleoid structuring protein (H-NS) represses transcription of virulence genes and at 37°C VirB derepresses virulence genes. One of the genes that contribute to the virulence of S. flexneri is icsP. My project focuses on the regulation of the S. flexneri icsP gene and has two main goals. The first is to identify the sequence of H-NS …


The Health Status, Concerns, And Reform In Uruguay With An Emphasis On Health Promotion Programs Geared Towards The Care And Development Of The Country's Children And Adolescents, Melissa Raquel Ramírez Aug 2011

The Health Status, Concerns, And Reform In Uruguay With An Emphasis On Health Promotion Programs Geared Towards The Care And Development Of The Country's Children And Adolescents, Melissa Raquel Ramírez

Honors Scholar Theses

This study was conducted in Montevideo, Uruguay, where I examined the actions that the country and society as a whole, its various communities, the Uruguayan government, and the people take in order to prevent disease and promote a healthy society. An ethnographic experiential and evidence-based approach, including personal experience, interviews, and official government documents, was used to fully describe the way the system operates. Due to Uruguay's demographic characteristics, particular attention was paid to children and adolescents. For this thesis, Uruguay is described in terms of its history, physical and mental health issues, society's shared health concerns, and its vulnerable …


Gene By Bmi Interactions Influencing C-Reactive Protein Levels In European-Americans, Sarah Tudor Aug 2011

Gene By Bmi Interactions Influencing C-Reactive Protein Levels In European-Americans, Sarah Tudor

Dissertations and Theses (Open Access)

C-Reactive Protein (CRP) is a biomarker indicating tissue damage, inflammation, and infection. High-sensitivity CRP (hsCRP) is an emerging biomarker often used to estimate an individual’s risk for future coronary heart disease (CHD). hsCRP levels falling below 1.00 mg/l indicate a low risk for developing CHD, levels ranging between 1.00 mg/l and 3.00 mg/l indicate an elevated risk, and levels exceeding 3.00 mg/l indicate high risk. Multiple Genome-Wide Association Studies (GWAS) have identified a number of genetic polymorphisms which influence CRP levels. SNPs implicated in such studies have been found in or near genes of interest including: CRP, APOE, APOC, IL-6, …


A Formative Evaluation For A Food Choices Intervention In A Mississippi Delta Community: A Focus Group Of Rural African American Adolescents, Jovan Chantrell Eugene Williams Aug 2011

A Formative Evaluation For A Food Choices Intervention In A Mississippi Delta Community: A Focus Group Of Rural African American Adolescents, Jovan Chantrell Eugene Williams

Master's Theses

A needs assessment should be conducted to plan effective interventions. This study used a qualitative research approach to examine the eating patterns, food purchasing and preparation skills and practices, barriers and facilitators of dietary change, social and contextual influences on food choices, and preferences for communication and presentation channels and styles of low-income rural African American adolescents. Seven focus groups were conducted with a total of 33 participants, 21 girls and 12 boys, aged 13-18. Adolescents were grouped by age and gender. A moderator, who was trained in focus group methodology, conducted the session using a focus group discussion guide …


Heterogeneity, Control, Social Infrastructure, And Possibilities Of Participation: Their Interplay In Modern Understandings Of Heredity And In Interpretation Of Science, Peter J. Taylor Jul 2011

Heterogeneity, Control, Social Infrastructure, And Possibilities Of Participation: Their Interplay In Modern Understandings Of Heredity And In Interpretation Of Science, Peter J. Taylor

Working Papers on Science in a Changing World

This working paper is a prospectus for research, writing, and engagement. It consists of vignettes, sketches of lines of inquiry, and proposals for engagement, all of which concern modern understandings of heredity and development over the life course as well as the social interpretation of science. The various items address a range of areas of science and of its interpretation: heritability studies, the social uses of genetic information, gene-by-environment interaction, personalized medicine, IQ paradoxes, racial group membership, biobanks, and life events and difficulties research. Fresh perspectives in these areas are opened up by examining the ways that research and application …


Characterization Of The Serologic Responses To Plasmodium Vivax Dbpii Variants Among Inhabitants Of Pursat Province, Cambodia, Samantha Jones Barnes Jul 2011

Characterization Of The Serologic Responses To Plasmodium Vivax Dbpii Variants Among Inhabitants Of Pursat Province, Cambodia, Samantha Jones Barnes

USF Tampa Graduate Theses and Dissertations

The Plasmodium vivax Duffy Binding Protein (DBP) is the ligand in the major pathway for P. vivax invasion of human reticulocytes, making it an appealing vaccine candidate. Region II of DBP (DBP-RII) is the minimal portion of the ligand that mediates recognition of the Duffy Antigen Receptor for Chemokines (DARC receptor) on the reticulocyte surface and constitutes the primary vaccine target. Analysis of natural variation in the coding sequences of DBP-RII revealed signature evidence for selective pressure driving variation in the residues of the putative receptor-binding site. We hypothesize that anti-DBP immunity in P. vivax infections is strain-specific and hindered …


Emotional Climate, Feeding Practices, And Feeding Styles: An Observational Analysis Of The Dinner Meal In Head Start Families, Sheryl O Hughes, Thomas G Power, Maria A Papaioannou, Matthew B Cross, Theresa A Nicklas, Sharon K Hall, Richard M Shewchuk Jun 2011

Emotional Climate, Feeding Practices, And Feeding Styles: An Observational Analysis Of The Dinner Meal In Head Start Families, Sheryl O Hughes, Thomas G Power, Maria A Papaioannou, Matthew B Cross, Theresa A Nicklas, Sharon K Hall, Richard M Shewchuk

Faculty, Staff and Students Publications

BACKGROUND: A number of studies conducted with ethnically diverse, low-income samples have found that parents with indulgent feeding styles had children with a higher weight status. Indulgent parents are those who are responsive to their child's emotional states but have problems setting appropriate boundaries with their child. Because the processes through which styles impact child weight are poorly understood, the aim of this study was to observe differences in the emotional climate created by parents (including affect, tone of voice, and gestures) and behavioral feeding practices among those reporting different feeding styles on the Caregiver's Feeding Styles Questionnaire. A secondary …


Comparison Of Workplace Protection Factors For Different Biological Contaminants, Kyungmin Jacob Cho, Tiina Reponen, Roy Mckay, Alok Dwivedi, Atin Adhikari, Umesh Singh, Rakesh Shukla, M. Susan Jones, Gordon Jones, Sergey A. Grinshpun Jun 2011

Comparison Of Workplace Protection Factors For Different Biological Contaminants, Kyungmin Jacob Cho, Tiina Reponen, Roy Mckay, Alok Dwivedi, Atin Adhikari, Umesh Singh, Rakesh Shukla, M. Susan Jones, Gordon Jones, Sergey A. Grinshpun

Nursing Faculty Publications

This study compared workplace protection factors (WPFs) for five different contaminants (endotoxin, fungal spores, (1→3)-β-D-glucan, total particle mass, and total particle number) provided by an N95 elastomeric respirator (ER) and an N95 filtering facepiece respirator (FFR). We previously reported size-selective WPFs for total particle numbers for the ER and FFR, whereas the current article is focused on WPFs for bioaerosols and total particle mass. Farm workers (n = 25) wore the ER and FFR while performing activities at eight locations representing horse farms, pig barns, and grain handling facilities. For the determination of WPFs, particles were collected on filters simultaneously …


Weaning Onto Solid Foods In Ireland: Some Of The Challenges, A. E. Bennett, A. O'Connor, N. J. Canning, E. M. Keaveney, Katherine Younger, M. Flynn Jun 2011

Weaning Onto Solid Foods In Ireland: Some Of The Challenges, A. E. Bennett, A. O'Connor, N. J. Canning, E. M. Keaveney, Katherine Younger, M. Flynn

Conference Papers

No abstract provided.


Validity And Reliability Of The Paffenbarger Physical Activity Questionnaire Among Healthy Adults, Kathleen Simpson May 2011

Validity And Reliability Of The Paffenbarger Physical Activity Questionnaire Among Healthy Adults, Kathleen Simpson

Master's Theses

No abstract provided.


Nutrition And Fitness Guide For Graduating Student-Athletes, Anna Fukunaga May 2011

Nutrition And Fitness Guide For Graduating Student-Athletes, Anna Fukunaga

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

For the last four years of your life, you have been supported by strength coaches, academic advisors, athletic trainers, tutors, mentors, and coaches. Your life is dedicated to your sport, and your body is molded into the ideal build to compete at the highest level you can achieve. As soon as your competitive days are over, your life dramatically changes and the needs of your body change as well. Because you typically do not sustain the same level of activity, you do not have the same nutritional needs. The demands you place on your body for your sport are higher …


Examining Activity Levels And Motor Proficiency: A Comparison Of Children Who Are Overweight And At A Healthy Weight To Their Parents And Peers, Aaron Copeland, Maresa Madsen, Riley Phelps, Brandon Richards May 2011

Examining Activity Levels And Motor Proficiency: A Comparison Of Children Who Are Overweight And At A Healthy Weight To Their Parents And Peers, Aaron Copeland, Maresa Madsen, Riley Phelps, Brandon Richards

UNLV Theses, Dissertations, Professional Papers, and Capstones

Objective: The purpose of this study was to examine relationships and differences between motor proficiency, activity level, and parental activity level in children who are at a healthy weight and children who are overweight or obese.

Methods: Forty-four children (26 children at a healthy weight and 18 children who were overweight or obese) between the ages of 8-16 (BMI: 14.3-43.6 kg/m2) and 36 parents (BMI: 18.1-44.7) participated in this study. Children and parents wore StepWatch activity monitors (SAM) to measure activity levels over a 72 hour period. Tests reflecting several determinants of motor performance were also administered to …


Effects Of Environment On Children's Motor Scores, Eligibility Status, And Administration Times, Derrick Mittelstadt, Abigail Parker, Kirsten Pickett, Heather Temkin May 2011

Effects Of Environment On Children's Motor Scores, Eligibility Status, And Administration Times, Derrick Mittelstadt, Abigail Parker, Kirsten Pickett, Heather Temkin

UNLV Theses, Dissertations, Professional Papers, and Capstones

Best practices for assessing developmental skills in young children focus on naturalistic observation in everyday settings, but the effects of environment on test scores, eligibility status and administration time have not been explored. The Peabody Developmental Motor Scales-Second Edition (PDMS-2) was administered to 34 children aged 18 to 59 months in natural and pull-out settings. PDMS-2 total, gross, and fine motor quotient (TMQ, GMQ, and FMQ) scores were significantly lower in the natural environment (p’s≤.014). Based on our results, more children would qualify for services when tested in natural environments using TMQ and GMQ scores. It also took significantly longer …


Self-Reported Exercise And Risk Of Osteoporosis In Prostate Cancer Patients Receiving Androgen Deprivation Therapy, Lori J. Mennen-Winchell May 2011

Self-Reported Exercise And Risk Of Osteoporosis In Prostate Cancer Patients Receiving Androgen Deprivation Therapy, Lori J. Mennen-Winchell

Loma Linda University Electronic Theses, Dissertations & Projects

Prostate cancer is stimulated to grow in response to testosterone. Androgen deprivation therapy (ADT) leads to chemical castration and suppression of prostate cancer cell production. Testosterone levels less then 300ng/ml decreases bone mineral density and could result in osteoporosis. Studies have shown that during the first year of ADT, fracture risk, mainly in hips and spine increases about 50%. In men, 40% of hip fractures result in death. Exercise may reduce the risk of osteoporosis and thus contribute to the prevention of hip and other fractures. There is limited data regarding whether exercise is associated with a reduced risk of …


Examining Dietary Acculturation In Hispanic Males Residing In South Mississippi, Diana Katherine Cuy Castellanos May 2011

Examining Dietary Acculturation In Hispanic Males Residing In South Mississippi, Diana Katherine Cuy Castellanos

Dissertations

This study explored dietary behavior in terms of dietary intake, dietary intake change and dietary contributing factors in a sample of Hispanic males residing in southern Mississippi that are at various stages of the acculturation process. Grounded theory and the bidimensional acculturation model were incorporated to identify the dietary factors and assess acculturation in each participant. Qualitative and quantitative measures were used in data collection. Qualitative measurements included Semistructured interviews, a focus group, and photovoice with group interviews. The ARSMA-II, Marginality Scale, Fruit/Vegetable and Fat Food Screeners, a psychosocial dietary questionnaire, and the New Vital Signs Food Label for Health …


The Importance Of Metrics And Communication In Cafeteria School Policy, Andre Sanchez, Atreya Chakraborty Apr 2011

The Importance Of Metrics And Communication In Cafeteria School Policy, Andre Sanchez, Atreya Chakraborty

Interdisciplinary Perspectives: a Graduate Student Research Showcase

Obesity has become an epidemic amongst American youth in the 21st century, and is spreading not only into other developed nations such as the UK and Australia, but is also beginning to effect developing nations such as India (Bhardwaj, 2008). It is estimated that nationwide, childhood obesity affects around 17% of American children (Center For Disease Control, 2011). Obesity has been linked to many health disorders, including but not limited to, heart disease and diabetes. Subsequently, this rise in childhood obesity is having a severe impact on the healthcare services sector in America, with some studies suggesting childhood obesity in …


Uptake Of Nanoparticles Of Cerium Oxide And Yttrium Oxide By Acanthamoeba Castellanii (Protozoa) And Daphnia Magna (Crustacea), James R. Palmieri, Geneva Gehring, Catherine Minichino, Shaadi F. Elswaifi Apr 2011

Uptake Of Nanoparticles Of Cerium Oxide And Yttrium Oxide By Acanthamoeba Castellanii (Protozoa) And Daphnia Magna (Crustacea), James R. Palmieri, Geneva Gehring, Catherine Minichino, Shaadi F. Elswaifi

Virginia Journal of Science

Currently, nanoparticles are synthesized and used at an unprecedented rate for industrial, medical, and research applications. The use of cerium oxide nanoparticles (CeONP) and yttrium oxide nanoparticles (YtONP) results in their spread as contaminants into the environment. Once in the environment, CeONP and YtONP can be taken up by organisms in the food chain where they may pose a public health risk. In this study we determine whether Acanthamoeba castellanii and Daphnia magna uptake CeONP or YtONP from their environment and thereby play a role in the transmission of the nanoparticles. Using electron microscopy, orgranisms exposed to the nanoparticles were …