Medicine and Health Sciences Commons^™

The Role And Impact Of Student Leadership On Participants In A Healthy Eating And Physical Activity Programme, Lila Gutuskey, Nate Mccaughtry, Bo Shen, Erin Centeio, Alex Garn

Kinesiology, Health and Sport Studies

Objective: In the USA there are rising rates of obesity among children, at least in part due to unhealthy eating and physical inactivity. Implementing school-based health interventions with elementary school children focused on youth empowerment could lead to improved health environments and behaviours. The purpose of the present study was to examine elementary students’ perceptions of participating in a student-led school health improvement team. Empowerment theory guided the research, specifically the concept of including participants in programming to identify possible individual-level outcomes. Design: Qualitative research. Setting: One US elementary school formed a student-led school health improvement team, …

Comprehensive School Physical Activity Programs: Characteristics Of Trained Teachers, Erin E. Centeio, Heather Erwin, Darla M. Castelli

Kinesiology, Health and Sport Studies

As public health concerns about physical inactivity and childhood obesity continue to rise, researchers are calling for interventions that comprehensively lead to more opportunities to participate in physical activity (PA). The purpose of this study was to examine the characteristics and attitudes of trained physical education teachers during the implementation of a Comprehensive School Physical Activity Program at the elementary level. Using a collective case study design, interviews, observations, field notes, open-ended survey questions, and an online forum monitoring guided the interpretation of teacher perceptions and development of emergent themes. Qualitative data analysis was conducted for each individual teacher and …

Physical Activity Change Through Comprehensive School Physical Activity Programs In Urban Elementary Schools, Erin E. Centeio, Nate Mccaughtry, Lila Gutuskey, Alex C. Garn, Cheryl Somers, Bo Shen, Jeffry J. Martin, Noel L, Kulik

Kinesiology, Health and Sport Studies

he impact of Comprehensive School Physical Activity Programs (CSPAPs) on urban children’s, educators’, and parents’ physical activity (PA) is relatively unknown. The purpose of this study was to explore overall changes in student, educator, and parent PA after an 8-month CSPAP-based program. This longitudinal, exploratory study implemented a CSPAP in 20 urban elementary schools, with six randomized for research. In-school PA was measured prepost for all fourth grade students using accelerometers. Parent and educator PA was self-reported using the IPAQ. RM-ANOVAs revealed significant prepost increases in minutes of student MVPA (P < .001). Parents significantly increased PA (P < .01) and although educators’ reported change in PA, it was not statistically significant (P = .50). This study provides unique …

Comparing Partial Least Square Approaches In Gene-Or Region-Based Association Study For Multiple Quantitative Phenotypes, Zhongshang Yuan, Xiaoshuai Zhang, Fangyu Li, Jinghua Zhao, Fuzhong Xue

Human Biology Open Access Pre-Prints

On thinking quantitatively of complex diseases, there are at least three statistical strategies for association study: single SNP on single trait, gene-or region (with multiple SNPs) on single trait and on multiple traits. The third of which is the most general in dissecting the genetic mechanism underlying complex diseases underpinning multiple quantitative traits. Gene-or region association methods based on partial least square (PLS) approaches have been shown to have apparent power advantage. However, few attempts are developed for multiple quantitative phenotypes or traits underlying a condition or disease, and the performance of various PLS approaches used in association study for …

Pedigree Structure And Kinship Measurements Of A Mid-Michigan Community: A New North American Population Isolate Identified, Joseph D. Bonner, Rachel Fisher, James Klein, Qing Lu, Ellen Wilch, Karen H. Friderici, Jill L. Elfenbein, Debra L. Schutte, Brian C. Schutte

Human Biology Open Access Pre-Prints

Previous studies identified a cluster of individuals with an autosomal recessive form of deafness that resides in a small region of mid-Michigan. We hypothesized that affected members from this community descend from a defined founder population. Using public records and personal interviews, we constructed a genealogical database that includes the affected individuals and their extended families as descendants of 461 settlers who emigrated from the Eifel region of Germany between 1836 and 1875. The genealogical database represents a 13-generation pedigree that includes 27,747 descendants of these settlers. Among these descendants, 13,784 are presumed living. Many of the extant descendants reside …

Celiac Disease As A Model For The Evolution Of Multifactorial Disease In Humans, Aaron Sams, John Hawks

Human Biology Open Access Pre-Prints

Celiac disease (CD) is a multifactorial chronic inflammatory condition that results in injury of the mucosal lining of the small intestine upon ingestion of wheat gluten and related proteins from barley and rye. Although the exact mechanisms leading to CD are not fully understood, the genetic basis of CD has been relatively well characterized. In this review we briefly review the history of discovery, clinical presentation, pathophysiology, and current understanding of the genetics underlying CD risk. Then, we discuss what is known about the current distribution and evolutionary history of genes underlying CD risk in light of other evolutionary models …

Lactase Persistence Variants In Arabia And In The African Arabs, Edita Priehodova, Abdelhay Abdelsawy, Evelyne Heyer, Viktor Cerny

Human Biology Open Access Pre-Prints

Lactase persistence (LP), the state enabling the digestion of milk sugar in adulthood occurs only in some human populations. The convergent and independent origin of this physiological ability in Europe and Africa is linked with animal domestication that had either started in both places independently or had spread from the Near East by acculturation. However, it has recently been shown that at least in its southern parts, the population of Arabia not only has a different LP-associated mutation profile than the rest of Africa and Europe but had also experienced an independent demographic expansion occurring before the Neolithic around the …

Epicatechin Stimulates Mitochondrial Activity And Selectively Sensitizes Cancer Cells To Radiation, Hosam A. Elbaz, Icksoo Lee, Deborah A. Antwih, Jenney Liu, Maik Hüttemann, Steven P. Zielske

Center for Molecular Medicine and Genetics

Radiotherapy is the treatment of choice for solid tumors including pancreatic cancer, but the effectiveness of treatment is limited by radiation resistance. Resistance to chemotherapy or radiotherapy is associated with reduced mitochondrial respiration and drugs that stimulate mitochondrial respiration may decrease radiation resistance. The objectives of this study were to evaluate the potential of (-)-epicatechin to stimulate mitochondrial respiration in cancer cells and to selectively sensitize cancer cells to radiation. We investigated the natural compound (-)-epicatechin for effects on mitochondrial respiration and radiation resistance of pancreatic and glioblastoma cancer cells using a Clark type oxygen electrode, clonogenic survival assays, and …

Matriptase Mediated C-Met Signaling In Breast Cancer, Gina Lynn Zoratti

Wayne State University Dissertations

MATRIPTASE MEDIATED c-MET SIGNALING IN CRITICAL FOR BREAST CANCER PROGRESSION

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GINA ZORATTI

Historically proteases have been associated with tumor progression and metastasis through degradation of the basement membrane. However, in recent years these enzymes have also been shown to play key roles in the activation of growth factors and cytokines, thereby activating pro-oncogenic signaling pathways. Matriptase (MT-SP1, ST14) is an epithelia-specific pericellular protease which has received considerable attention in recent years spurred by the consistent dysregulation of the protease in human epithelial tumors including breast cancer. We have performed both functional and mechanistic studies of matriptase in breast cancer …

Combating Resistance To Epidermal Growth Factor Recpetor Inhibitors In Triple Negative Breast Cancer, Julie Marie Madden

Wayne State University Dissertations

Triple negative breast cancer (TNBC) patients suffer from a highly malignant and aggressive cancer that lacks an effective targeted therapeutic. Although many TNBCs, both in vitro and in vivo, have increased expression of epidermal growth factor receptor (EGFR), EGFR targeted inhibitors, such as gefitinib (GEF), have yet to demonstrate efficacy. Using mass spectrometry to identify pathways that remain activated in the presence of GEF, we found that components of the mTOR signaling pathway remain phosphorylated. While inhibiting mTOR with temsirolimus (TEM) decreased mTOR signaling, EGFR signaling pathways remained activated and the TNBC cell lines continued to proliferate. However, dual treatment …

Peri-Exercise Co-Ingestion Of Branched-Chain Amino Acids And Carbohydrate In Men Does Not Preferentially Augment Resistance Exercise-Induced Increases In Pi3k/Akt-Mtor Pathway Markers Indicative Of Muscle Protein Synthesis, Maria Pontes Ferreira, Rui Li, Matthew Cooke, Richard B. Kreider, Darryn S. Willoughby

Nutrition and Food Science Faculty Research Publications

The effects of a single bout of resistance exercise (RE) in conjunction with peri-exercise branched chain amino acid (BCAA) and carbohydrate (CHO) ingestion on skeletal muscle signaling markers indicative of muscle protein synthesis (MPS) were determined. It was hypothesized that CHO + BCAA would elicit a more profound effect on these signaling markers compared to CHO. Twenty-seven males were randomly assigned to CHO, CHO + BCAA, or placebo (PLC) groups. Four sets of leg presses and leg extensions were performed at 80% 1RM. Supplements were ingested 30 min and immediately prior to and after RE. Venous blood and muscle biopsy …

Isolation And Characterization Of Natural Alpha-Glucosidase Inhibitors From Antioxidant Rich Red Wine Grapes (Vitis Vinifera), Hoda Chaouki Kadouh

Wayne State University Dissertations

Background: Diabetes is currently a global public health problem affecting people at all ages. Dietary antioxidants have been associated with a reduced risk of type 2 diabetes. Grape pomace contains considerable amounts of polyphenols and it has been reported to exhibit an inhibitory activity against alpha- glucosidases. Alpha-glucosidases, in turn, play a major role in controlling starch digestion and therefore postprandial blood glucose, a target for diabetes management.

Objective: This study aims to investigate the anti-diabetes potential of a selection of six grape pomaces and prepare and purify active components in the active variety that specifically inhibit intestinal alpha-glucosidases. The …

Metabolic Syndrome In Obese African American Adolescents, Yulyu Yeh

Wayne State University Dissertations

Limited research regarding metabolic syndrome (MetS) has been conducted in obese African American adolescents (OAAA) using the International Diabetes Federation IDF criteria. MetS is a constellation of risk factors that increase the risk for chronic diseases and is defined as presence of any 3 or more of the 5 criteria: fasting glucose 100mg/dl, waist circumference 90th percentile, triglycerides 150 mg/dl, blood pressure (BP) 130/85 mmHg and HDL < 40mg/dl. The aim of this study was to assess the incidence of MetS in OAAA by using the IDF criteria and the relationship with diet, fast food consumption, nutrition knowledge, home food environment (HFE), and serum calcium, leptin, 1,25-dihydroxy vitamin D (1, 25 D3) levels. One hundred and fifty one OAAA (mean age: 14.3 ± 1.4 years, 65.6% girls, mean BMI: 37.4±7.2 kg/m2) in a metropolitan area took part in this study. Anthropometric data and fasting blood samples were collected. Participants completed a set of questionnaires regarding diet, fast food consumption, and nutrition knowledge. HFE was completed by the care givers. The MetS rate for OAAA was 61.6% and boys had higher MetS than girls (73.1%, 55.6% respectively). OAAA without MetS had higher serum calcium and 1,25 D3 level but no significant difference were found in food consumption, nutrition knowledge, and HFE. Total cholesterol /HDL ratio and Insulin resistance increased the odds of MetS by 55% and 10% and 1,25 D3 decrease the odds of MetS by 2%. Even though high fast food consumption, lack of nutrition knowledge and poor food environment were negatively associated with obesity, they didn't contribute to MetS. Increase serum vitamin D and calcium level might be beneficial to reduce MetS in OAAA population.

Cervical Remodeling/Ripening At Term And Preterm Delivery: The Same Mechanism Initiated By Different Mediators And Different Effector Cells, Juan Miguel Gonzalez Velez

Wayne State University Dissertations

Premature cervical remodeling/ripening is believed to contribute to preterm delivery (PTD), the leading cause of perinatal morbidity and mortality. Despite considerable research, the causes of term and PTD remain unclear, and there is no effective treatment for PTD. We tested the hypothesis that complement activation plays a role in cervical remodeling and PTD. We studied cervical remodeling at term.

We studied two mouse models of inflammation-induced PTD. The first model was induced by vaginal administration of lipopolysaccharide (LPS)and the second one by administration of progesterone antagonist RU486. Increased cervical C3 deposition and macrophage infiltration and increased serum C3adesArg and C5adesArg …

Saudi Arabian Students In Detroit Use Natural Health Products More So Than Other University Students In Detroit, Samiah Naji Alqahtani

Wayne State University Theses

Natural Health Products (NHP), are defined as products that derive from organisms and may include supplements and herbal/traditional remedies. Prior research indicates that females use NHP more than males. We have unpublished data to show that students use NHP for health maintenance with significantly different use of NHP by Native/Aboriginal students vs. other students. Less is known about Saudi students. We hypothesize that: (1) There are gender differences in NHP used; and (2) There are geo-ethnic differences in NHP used. We also determine the predictor variables that influence NHP use by students. Students from Wayne State University (n=560; 193 …

Effect Of Folate Deficiency On Expression Of Proteins On The Mtor Signaling Pathway In The Brain Of C57/Bl6 Mice, Nikita Patel

Wayne State University Theses

ABSTRACT

EFFECT OF FOLATE DEFICIENCY ON EXPRESSION OF PROTEINS ON THE mTOR SIGNALING PATHWAY IN THE BRAIN OF C57/BL6 MICE

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NIKITA PATEL

December 2014

Advisor: Dr. Ahmad Heydari

Major: Nutrition and Food Science

Degree: Master of Science

Nutrient-gene interactions can significantly impact several cellular processes in the human body by altering important molecular pathways. Nutrition can affect brain structure, function and development throughout the life cycle; it can have a profound effect on cognition ad mental health leading to neurodegenerative diseases. It is important to elucidate the mechanisms by which diet can effect signaling pathways in the brain. The …

Blast-Induced Tinnitus: A Combined Behavioral, Memri, And Electrophysiology Study, Jessica Pengyun Ouyang

Wayne State University Dissertations

ABSTRACT

BLAST-INDUCED TINNITUS: A COMBINED BEHAVIORAL, MEMRE, AND ELECTROPHYSIOLOGY STUDY

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JESSICA OUYANG

May 2014 Advisor: Drs. Steve Cala & Jinsheng Zhang

Major: Physiology

Degree: Doctor of Philosophy

Tinnitus and hearing loss are the frequent auditory-related co-morbidities of blast trauma. The etiology of blast-induced tinnitus is also muddled by brain mechanisms associated with emotional and cognitive problems such as anxiety, memory loss, and depression. We set out to develop a realistic and ecologically valid model to address changes of cognitive status and psychological state that are associated with blast- induced tinnitus. In this study, 19 adult rats were randomly divided …

Molecular Studies On The Anti-Tumor Effects Of Metal-Based Complexes: Involvement Of The Ubiquitin-Proteasome And Apoptotic Pathways, Sara M. Schmitt

Wayne State University Dissertations

The ubiquitin-proteasome pathway is crucial to normal cellular function, and as such, has been extensively investigated as a potential target for cancer therapeutics. Many compounds have been tested for their proteasome inhibitory ability, including various small peptide aldehydes, and, following the success of cisplatin, several metal-containing complexes. The efficacy of these compounds in preclinical studies ultimately resulted in the development and approval of the first-in-class proteasome inhibitor bortezomib, the use of which, unfortunately, has been hindered by toxicity and resistance. These limitations have led to a massive push toward designing and developing new, less toxic proteasome inhibitors for clinical use. …

Proximate And Evolutionary Insights Into The Epigenetics Of Posttraumatic Stress Disorder, Levent Sipahi

Wayne State University Dissertations

Posttraumatic stress disorder (PTSD) is an important medical and social condition. Although the vast majority of individuals are exposed to traumatic events within their lifetime, a minority subsequently develop diagnosable PTSD. What underlies differential risk and resiliency in the face of trauma is an ongoing research and clinical question with implications for prevention and treatment. Recent work has revealed a putative role of epigenetic variation and modification - most notably DNA methylation - in the etiology of PTSD. That DNA methylation is stable, yet modifiable in response to lived experiences, makes it a strong candidate to mechanistically explain the ontogeny …

Linking Molecular, Electrical And Anatomical Properties Of Human Epileptic Brain, Shruti Bagla

Wayne State University Dissertations

Epilepsy is a common neurological disorder of recurrent unprovoked seizures. It affects almost 1% of the world population. Although there is a wide range of anti-epileptic drugs (AEDs) available, they only treat the seizure symptoms and do not cure the disease itself. The poor role of AEDs can be attributed to the lack of knowledge of exact mechanisms and networks that produce epileptic activities in the neocortex. At present, the best cure for epilepsy is surgical removal of electrically localized epileptic brain tissue. Surgically removed brain tissue presents an excellent opportunity to discover the molecular and cellular basis of human …

Tmprss2-Erg Regulation Of Androgen Biosynthetic Enzyme Expression, Dht Synthesis, And Androgen Receptor Activation In Prostate Cancer, Katelyn Ann Powell

Wayne State University Dissertations

Intratumoral androgen synthesis in prostate cancer (PCa) contributes to the development of castration-resistant prostate cancer (CRPC). Several enzymes responsible for androgen biosynthesis have been shown to be overexpressed in CRPC, thus, contributing to CRPC in a castrated environment. Although intratumoral androgen synthesis is thought to contribute to the development and progression of CRPC, currently little is known regarding the regulation of androgen biosynthetic enzyme gene expression in PCa. The TMPRSS2-ERG transcription factor has been shown to be present in primary PCa tumors as well as CRPC tumors. The hypothesis was investigated that TMPRSS2-ERG fusions regulate androgen biosynthetic enzyme (ABE) gene …