Digital Commons Network^™

Inattention And Hyperactivity Among Preschool Age Children Born Prematurely, Andrew Heitzer

Wayne State University Theses

A large body of literature shows that compared to children born at term, preterm- children are at increased risk for difficulties with inattention and hyperactivity. Less consistency exists, however, in the limited body of research exploring the contribution of early biological risk to behavioral disinhibition within the population of children born prematurely. Therefore, our goal was to examine perinatal variables that may influence activity level and hyperactivity among preterm preschoolers. Ninety-eight preterm (23.4 - 33.9 weeks gestation) preschoolers (3-4 years) participated in the study. Direct measures of inattention and hyperactivity as well as parental ratings were used to evaluate behavior. …

Immunotherapy As A Treatment Option For Patients With Pancreatic Cancer, Yehuda Lehrfield

The Science Journal of the Lander College of Arts and Sciences

Pancreatic cancer is one of the worst forms of cancer that can develop in an individual. Traditionally, chemotherapy is administered but it has very limited success. Using the immune system to treat the cancer is very enticing and many studies have been conducted to attempt to harness the body’s own mechanisms to defeat the cancer. It seems that in order to properly treat the tumor a two pronged approach must be used. First, the immune system must be stimulated to react to the tumor and attack it. A possible cytokine that can be utilized is interferon alpha, which could result …

Neural Plasticity Following Ischemia, Shira Brickman

The Science Journal of the Lander College of Arts and Sciences

Neural plasticity refers to the ability of one’s brain to change its structure and/or function in response to changes in behavior, environment, and neural processes. When a person suffers an ischemic brain injury, it often leads to hemisyndrome with motor and sensory deficits in the arm, leg, and face of one side. This article discusses the various ways that the existing network can be restructured and neuronal connections can be remodeled after the injury to enable partial or complete recovery of motor function. Spontaneous functional recovery after stroke develops through the overlapping sequence of events including a phase of axonal …

The Grapefruit Juice Effect, Rebecca Leitner

The Science Journal of the Lander College of Arts and Sciences

A drug interaction is the effect that a substance can have when taken together with a drug. Grapefruit juice has proven to be a source of interaction with many drugs, causing increased bioavailability, leading to possible toxicity and increased instances of side effects. This paper discusses the mechanisms of the interaction and the components of grapefruit juice responsible for the interaction, as well as two classes of drugs that are affected, calcium channel antagonists and HMGCoA reductase inhibitors, and possible ways to avoid the interaction. The mechanisms are inhibition of the enzyme cytochrome P-450 3A4 (CYP3A4) and the transport molecule …

Synthetic Triterpenoids Can Protect Against Toxicity Without Reducing The Efficacy Of Treatment With Carboplatin And Paclitaxel In Experimental Lung Cancer, Karen T. Liby

Dartmouth Scholarship

Synthetic oleanane triterpenoids are multifunctional drugs being developed for the prevention and treatment of a variety of chronic diseases driven by inflammation and oxidative stress. Low nanomolar concentrations of triterpenoids inhibit the induction of inflammatory cytokines, and these drugs are potent activators of the Nrf2 cytoprotective pathway. In contrast, low micromolar concentrations of triterpenoids increased the production of ROS and induced apoptosis in a dose-dependent manner in malignant MCF10 CA1a breast cancer cells. Because cancer cells respond differently to ROS than normal cells, it should be possible to exploit these differences therapeutically. In an experimental model of lung cancer, the …

Preparation, Characterization, And Delivery Of Antibodies Binding To A Model Oncogenic Rna, Human Initiator Trna, Jennifer Archer

Electronic Theses and Dissertations

Non-coding RNAs (ncRNAs) account for a higher percent of the genome than coding mRNAs, and are implicated in human disease such as cancer, neurological, cardiac and many others. While the majority of ncRNAs involved in disease were originally attributed to a class of RNAs called micro RNAs (miRNAs) with a small size of only about 19 -24 base pairs, emerging research has now demonstrated a class of long non-coding RNAs (lncRNAs) that have a size of over 200 base pairs to be responsible for gene regulation and other functional roles and have also found to contribute to pathogenesis in humans. …

The Role Of Lim Kinase 1 And Its Substrates In Cell Cycle Progression, Lisa Ritchey

Electronic Theses and Dissertations

LIM Kinase 1 (LIMK1), a modulator of actin and microtubule dynamics, has been shown to be involved in cell cycle progression. In this study we examine the role of LIMK1 in G1 phase and mitosis. We found ectopic expression of LIMK1 resulted in altered expression of p27Kip1, the G1 phase Cyclin D1/Cdk4 inhibitor. Overexpression of LIMK1 resulted in lower levels of p27Kip1 and p27Kip1-pY88 (inactive p27Kip1). Knockdown of LIMK1 resulted in elevated levels of p27Kip1 and p27Kip1-pY88. Together, these results suggest LIMK1 regulates progression of G1 phase through modulation of p27Kip1 expression. LIMK1 is involved in the mitotic process through …

The Effect Of Lycopene On The Ototoxicity Induced By Cisplatin, Mehmet Turan Çi̇çek, Mahmut Tayyar Kalci̇oğlu, Tuba Bayindir, Yüksel Toplu, Mustafa Iraz

Turkish Journal of Medical Sciences

To determine the efficacy of lycopene, which is considered an antioxidant agent, in decreasing the cochlear damage induced by cisplatin. Materials and methods: A total of 38 rats were randomized into 4 groups: control, cisplatin, cisplatin + lycopene, and lycopene-treated groups. In all groups, the distortion-product otoacoustic emission measurements were performed on days 0, 1, 2, and 5. Results: There were no significant differences between the control and lycopene groups at any frequencies. In the cisplatin group, the statistically significant differences were found in the measurements taken between day 0 and day 5 at all frequencies and between days 1 …

Is There A Genetic Predisposition For Turkish Patients With Sarcoidosis In The 329-Bp Region Containing The Btnl2 Rs2076530 Polymorphism?, Muhsi̇n Özdemi̇r, Faruk Saydam, Emel Kurt, İrfan Deği̇rmenci̇, Tunç Tuncel, Oğuz Çi̇li̇ngi̇r, Hasan Veysi̇ Güneş, Sevi̇lhan Artan

Turkish Journal of Medical Sciences

Sarcoidosis is a complex, multifactorial immune disorder with unknown etiology. A single nucleotide polymorphism ( G->A, rs2076530) in the butyrophilin-like 2 (BTNL2) gene results in a truncating protein formation. It has been previously reported that this variation may be a risk factor for sarcoidosis in certain ethnic groups. This study was conducted to determine whether there is any genetic predisposition for the BTNL2 rs2076530 polymorphism in the 329-bp region in Turkish patients with sarcoidosis. Materials and methods: DNA samples were obtained from volunteers including 53 Turkish patients with sarcoidosis and 52 healthy controls. Analysis of the 329-bp region was …

Clinical And Demographic Findings Of Patients With Rheumatoid Arthritis And Ankylosing Spondylitis Treated In A Tertiary Care Center In Turkey, Özlem Cemeroğlu, Zeynep Sila Yaşar, Mustafa Sağlam, Haşi̇m Çakirbay

Turkish Journal of Medical Sciences

Rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are 2 common rheumatic diseases that are frequent causes of disability. In this descriptive study, demographic, clinical, and laboratory findings of patients with RA and AS being followed in a tertiary care center in Turkey were reported. Materials and methods: The patient data of 45 RA and 45 AS cases were collected retrospectively from electronic medical records. Demographic findings, clinical and laboratory assessments of disease activity, drugs used for the treatment, and effect on quality of life of patients with RA and AS were analyzed. Results: In RA patients, 27% had mild, 44% …

Hepatitis C Virus Genotypes In Adana And Antakya Regions Of Turkey, Agah Bahadir Öztürk, Ümi̇t Bi̇lge Doğan, Nevi̇n Akçaer Öztürk, Gonca Özyazici, Mehmet Demi̇r, Mustafa Sali̇h Akin, Ali̇ Suha Bi̇ngöl

Turkish Journal of Medical Sciences

Hepatitis C virus (HCV) genotype 1 was found to be dominant in Turkey. In this study, HCV genotypes were examined in the Adana and Antakya regions of Turkey. Materials and methods: The study consisted of 639 HCV-RNA–positive patients with chronic HCV infection in Adana (214 males and 101 females) and Antakya (139 males and 185 females) in Turkey. Real time-polymerase chain reaction was used for genotype determination. Results: In Antakya, it was determined that the percentages of genotypes of type 1a (0.31%), 1b (86.73%), 2 (9.26%), 3 (0.93%), and 4 (2.78%) were compatible with the nationwide results seen in Turkey. …

Evaluation And Comparison Of Alpha- And Beta-Amanitin Toxicity On Mcf-7 Cell Line, Ertuğrul Kaya, Recep Bayram, Kürşat Oğuz Yaykaşli, İsmai̇l Yilmaz, Sai̇t Bayram, Emi̇ne Yaykaşli, Muhsi̇ne Zeynep Yavuz, Ali̇ Akçahan Gepdi̇remen

Turkish Journal of Medical Sciences

Alpha- and beta-amanitins are the main toxins of the poisonous Amanita phalloides mushroom. Although there are many studies available concerning alpha-amanitin, there are limited data about beta-amanitin in the literature. Therefore, this study is aimed at comparing the toxic effects of alpha- and beta-amanitin on the MCF-7 cell line. Materials and methods: The alpha- and beta-amanitins used for this research were purified from Amanita phalloides by preparative high-performance liquid chromatography. The MCF-7 breast cancer cell line was used, and specific concentrations of the toxins (100, 10, 1, 0.1, and 0.01 µg/mL) were applied to the cells. The MTT test was …

The Effect Of Malaysian Honey And Its Major Components On The Proliferation Of Cultured Fibroblasts, Al-Mahdi Al-Jadi, Francis Kanyang Enchang, Kamaruddi̇n Mohd Yusoff

Turkish Journal of Medical Sciences

To examine, for the first time, the effect of a selected Malaysian honey and its major components on the proliferation of cultured fibroblasts. Materials and methods: Honey and some of its components, which include the sugars, the proteins, the hydrogen peroxide produced, and the phenolics, were exposed to cultured fibroblasts. The MTT colorimetric assay was used to assess cell viability and proliferation. Results: The stimulatory effect of honey on fibroblast proliferation was observed to be time- and dose-dependent. The continuous production of hydrogen peroxide by the honey-glucose oxidase system also acts to stimulate cell proliferation in a time- and dose-dependent …

Molecular Discrimination Of Echinococcus Granulosus And Echinococcus Multilocularis By Sequencing And A New Pcr-Rflp Method With The Potential Use For Other Echinococcus Species, Çağri Şakalar, Sali̇h Kuk, Ahmet Erensoy, Adi̇le Ferda Dağli, İbrahi̇m Hani̇fi̇ Özercan, Ülfet Çeti̇nkaya, Süleyman Yazar

Turkish Journal of Medical Sciences

To develop a novel polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) protocol using a new genomic marker sequence and a novel set of restriction enzymes in order to detect and discriminate 2 Echinococcus species, E. granulosus and E. multilocularis, found in formalin-fixed paraffin-embedded (FFPE) human tissues. Materials and methods: DNA was isolated from 11 FFPE human tissue samples positive for cystic echinococcosis or alveolar echinococcosis. A mitochondrial genomic marker region was amplified and sequenced using a novel primer pair and a new PCR-RFLP protocol was developed for the detection and discrimination of E. granulosus and E. multilocularis using a set …

Effects Of Ozone Therapy And Taurine On Ischemia/Reperfusion-Induced Testicular Injury In A Rat Testicular Torsion Model, Tolga Reşat Aydos, Mehmet Murad Başar, Oğuz Kul, Hasan Tarik Atmaca, Tuba Uzunali̇oğlu, Üçler Kisa, Oğuzhan Eki̇n Efe

Turkish Journal of Medical Sciences

To investigate the effect of ozone and/or taurine treatment comparatively on testicular damage due to ischemia/reperfusion (I/R) injury in an experimental torsion model in rats. Materials and methods: Adult Wistar rats with and without torsion/detorsion were used. In order to monitor the effect of ozone and/or taurine treatment on testicular damage due to I/R injury, following histopathological investigation apoptotic indexes were scored by TUNEL method. Moreover, tumor necrosis factor receptor 1 (TNFR1), caspase 3, caspase 8, endothelial nitric oxide synthase (eNOS), tumor necrosis factor alpha (TNF\alpha), and cytochrome C immunostainings were performed and the levels of malondialdehyde, glutathione peroxidase, superoxide …

Insulin-Like Growth Factor 1, Liver Enzymes, And Insulin Resistance In Patients With Pcos And Hirsutism, Evri̇m Çakir, Oya Topaloğlu, Nujen Çolak Bozkurt, Başak Karbek Bayraktar, Aşkin Güngüneş, Müyesser Sayki Arslan, İlknur Öztürk Ünsal, Esra Tutal, Beki̇r Uçan, Tuncay Deli̇başi

Turkish Journal of Medical Sciences

Hyperinsulinemia and insulin resistance are commonly seen in patients with hirsutism and polycystic ovary syndrome (PCOS), and are associated with cardiovascular disease risk. However, it is not yet known whether insulin-like growth factor I (IGF-I) and alanine transaminase (ALT) produced by the liver play roles in hyperinsulinemia and subclinical atherosclerotic process in patients with PCOS and idiopathic hirsutism (IH). Materials and methods: This was a prospective case-controlled study. The study population consisted of 25 reproductive-age PCOS women, 33 women with IH, and 25 control subjects. Results: Mean IGF-I levels and median ALT levels were higher in patients with IH and …

Leptin And Leptin Receptor Polymorphisms Are Related To Body Mass Index In A Turkish Population, Uzay Görmüş, Özlem Ti̇mi̇rci̇ Kahraman, Bahar Toptaş, Turgay İsbi̇r, Çavlan Çi̇ftçi̇, Hasan Hakan Berkkan, Altay Burak Dalan, Muti̇a Canan Karatay

Turkish Journal of Medical Sciences

Leptin is a hormone that is known to be related to weight gain and obesity. The soluble leptin receptor has been found in plasma as an important determinant of leptin sensitivity. In this study, our goal was to investigate the association between leptin levels and leptin receptor polymorphisms in a Turkish population. Materials and methods: The sample pool of this study consisted of 202 subjects. G2548A variant in the promoter region of the leptin gene and Q223R polymorphism of the leptin receptor gene were evaluated by using PCR-RFLP. Leptin levels were determined by ELISA. Results: Leptin levels were significantly higher …

Polymorphisms In Mmp-2 And Timp-2 In Turkish Patients With Prostate Cancer, Kürşat Oğuz Yaykaşli, Muhammet Ali̇ Kayikçi, Nesi̇be Yamak, Hati̇ce Soğuktaş, Selma Düzenli̇, Ali̇ Osman Arslan, Ahmet Meti̇n, Ertuğrul Kaya, Ömer Faruk Hati̇poğlu

Turkish Journal of Medical Sciences

Prostate cancer is the most commonly diagnosed malignancy and the second most common cause of cancer deaths in the Western male population. Matrix metalloproteinases (MMPs) and tissue inhibitors of MMPs (TIMPs) modulate the remodeling of the extracellular matrix (ECM). The imbalance between MMPs and TIMPs may lead to an emergence of pathological processes such as cancer. In this study, the association between TIMP-2 (-418 G/C) and MMP-2 (-1306 C/T) polymorphisms and prostate cancer in the Turkish population was investigated. Materials and methods: Sixty-one prostate cancer patients and 46 healthy subjects were included in the study. DNA was isolated from 2 …

Expression And Clinical Implications Of P53, P63, And P73 Protein In Malignant Tumor Of The Parotid Gland, Mei Yong, Ling Yang, Qimuge Suyila, Wenyan Han, Hongwei Yuan, Cheng Zhao, Xiulan Su

Turkish Journal of Medical Sciences

To investigate the expression of P53, P63, and P73 proteins in malignant parotid gland tumors and adjacent nonneoplastic tissues and the association between the 3 proteins and their clinical characteristics. Materials and methods: A total of 40 pairs of paraffin-embedded malignant parotid gland tumors and adjacent nonneoplastic tissues were collected. We detected P53, P63, and P73 protein expression by immunohistochemistry. Statistical analysis was performed by using the chi-square test. Results: P53, P63, and P73 protein expression in malignant parotid gland tumors was higher than their expression in adjacent nonneoplastic tissue (P = 0.030, 0.001, and 0.001, respectively). Expression of P53, …

The Place Of Androgen Receptor Gene Mutation Analysis In The Molecular Diagnosis Of Prostate Cancer And Genotype–Phenotype Relationship, Fuat Kizilay, Mustafa Serdar Kalemci̇, Adnan Şi̇mşi̇r, Burak Turna, Oktay Nazli, Afi̇g Berdeli̇

Turkish Journal of Medical Sciences

To determine the relationship between androgen receptor (AR) gene polymorphism and prostate cancer in our society. Materials and methods: Thirty-nine patients diagnosed with prostate cancer and 34 benign prostatic hyperplasia (BPH) patients who were diagnosed in 2010 met the study criteria. The inclusion criteria included patients whose diagnosis was confirmed with a biopsy, with the presence of adequate pathologic material for review, between the ages of 40 and 80, and who were healthy men without a family history of prostate cancer. The exclusion criteria excluded men diagnosed with another cancer and those who had kin with a history of prostate …

Evaluation Of 48-Week Response Of Treatment-Naive Chronic Hepatitis B Patients To 0.5 Mg/Day Entecavir, Servet Kölgeli̇er, Nazlim Aktuğ Demi̇r, Serap Özçi̇men, Şua Sümer

Turkish Journal of Medical Sciences

The hepatitis B virus (HBV) is an important healthcare problem. Chronic hepatitis B infection may present with a wide range of manifestations from inactive carrier state to cirrhosis and hepatocellular cancer. Therefore, treatment is very important in chronic hepatitis B. In this study, the treatment results of 199 chronic hepatitis B patients taking entecavir 0.5 mg/day for 48 weeks were evaluated. Materials and methods: This study retrospectively evaluated data of 199 treatment-naive chronic hepatitis B patients who were treated with entecavir. Results: Of the 199 treatment-naive chronic hepatitis B patients, 141 (70.9%) were males and 58 (29.1%) were females, and …

Anti Tnf-\Alpha Therapy Might Be Responsible For An Increased Incidence Of Varicocele In Patients With Ankylosing Spondylitis, Ömer Yilmaz, Yunus Ugan, Mahmut Yener, Mehmet Umul, Mustafa Kayan, Aykut Recep Aktaş, Eli̇f Ni̇sa Ünlü, Bünyami̇n Kisacik, Bumi̇n Deği̇rmenci̇, Meltem Çeti̇n

Turkish Journal of Medical Sciences

To evaluate the effects of anti-tumor necrosis factor-alpha (TNF-\alpha) therapy on the frequency of varicocele in patients with ankylosing spondylitis (AS) using color Doppler ultrasound. Materials and methods: The patients were divided into 2 groups: patients with AS who were on anti-TNF-\alpha treatment and patients with AS who were not regularly taking any antiinflammatory drugs. Thirty-one healthy volunteers were included as controls. Results: Left-sided varicocele was determined in 14 patients of Group 1 (44%), 10 patients of Group 2 (33%), and 7 of the controls (23%). There was a statistically significant difference only between Group 1 and controls (P = …

Protective Effects Of Montelukast And Hypericum Perforatum Against Intestinal Ischemia-Reperfusion Injury In Hamsters, Tarik Ocak, Ari̇f Duran, Gülzade Özyalvaçli, Zeynep Ocak, Elçi̇n Hakan Terzi̇, Mehmet Tosun, Kemaletti̇n Erdem

Turkish Journal of Medical Sciences

To evaluate the effects of montelukast and Hypericum perforatum against ischemia/reperfusion (I/R)-induced intestinal damage. Materials and methods: Twenty-eight hamsters were divided into 4 groups following midline abdominal laparotomy: control group (n = 7), I/R group (n = 7), montelukast and I/R (MIR) group (n = 7), and Hypericum perforatum and I/R (HPIR) group (n = 7). After 60 min of ischemia through obstruction of the superior mesenteric artery, 24 h of reperfusion was maintained. Ten minutes prior to the reperfusion period, the MIR group received 7 mg/kg of intraperitoneal montelukast and the HPIR group received 7 mg/kg of intraperitoneal Hypericum …

Gleason Score At The Margin Can Predict Biochemical Recurrence After Radical Prostatectomy, In Addition To Preoperative Psa And Surgical Margin Status, Sidika Şeyma Özkanli, Itir Ebru Zemheri̇, Asif Yildirim, Hati̇ce Deni̇z Gür, Mevlana Derya Balbay, Serkan Şenol, Ahmet Oğuz Özkanli, Erdal Alkan, Tülay Zengi̇nki̇net, Abdullah Aydin, Turhan Çaşkurlu

Turkish Journal of Medical Sciences

To evaluate the relation between biochemical recurrence (BCR) of prostate cancer and the extent of positive surgical margins (PSMs), Gleason score (GS) of the tumor at the margins, and preoperative prostate-specific antigen (PSA) levels. Materials and methods: A total of 94 patients who underwent radical prostatectomy were recruited for this study and received postoperative follow-up care for 2 years. All specimens were evaluated for surgical margin status, PSM length, GS at positive margin, size of tumor, multifocality, invasion of seminal vesicle, lymphovascular invasion, and perineural invasion. PSM was defined as a prostate tumor. Results: Out of 94 patients, 34 patients …

Effects Of Whole-Body Vibration On Plasma Sclerostin Level In Healthy Women, Muharrem Çi̇dem, Yunus Karakoç, Hakan Ekmekçi̇, Suat Hayri̇ Küçük, Murat Uludağ, Kerem Gün, Şafak Sahi̇r Karamehmetoğlu, İlhan Karacan

Turkish Journal of Medical Sciences

To determine whether plasma sclerostin levels are affected by applying whole-body vibration treatments. Materials and methods: Following a pilot study, the present prospective, randomized, controlled single-blind study was performed on 16 healthy volunteer women (ages 20 to 40 years). Subjects were randomly divided into 2 groups, and whole-body vibration was applied to the treatment group but not to the controls. The plasma sclerostin levels were measured before the treatment and at the 10th minute after whole-body vibration on the 1st, 2nd, and 5th days of application. Results: The plasma sclerostin level measured at 10 min after the whole-body vibration treatment …

Resistin Predicts Ischemia In Myocardial Perfusion Scintigraphy, Mustafa Yildirim, Meli̇h Engi̇n Erkan, Muhammet Aşik, Taner Uçgun, Ayşe Yilmaz, Huri̇ Ti̇lla İlçe, Yusuf Aslantaş, Ramazan Memi̇şoğullari, Serkan Bulur, Ahmet Semi̇h Doğan

Turkish Journal of Medical Sciences

Resistin plays a role in the pathogenesis of coronary artery disease and is related to mortality and morbidity through a number of mechanisms. We hypothesize that plasma resistin levels are increased in the presence of ischemia, as measured by GATED single-photon emission computed tomography myocardial perfusion scintigraphy (SPECT MPS), in comparison with nonischemic subjects. Materials and methods: Fasting intravenous blood samples of patients were drawn before a stress test. An ELISA kit was used for the assays. All patients underwent a technetium 99m-sestamibi GATED SPECT MPS study with a 1-day stress-rest protocol. Images were analyzed visually and patients were assessed …

Prevalence Of Blabstractp And Blavim Gene Carriage In Metallo-\Beta-Lactamase-Producing Burn Isolates Of Pseudomonas Aeruginosa In Tehran, Fatemeh Salimi, Fereshteh Eftekhar

Turkish Journal of Medical Sciences

To study the prevalence of bla_{VIM} and bla_{IMP} genes in metallo-\beta-lactamase (MBL)-producing burn isolates of Pseudomonas aeruginosa in relation with AmpC and extended-spectrum \beta-lactamase (ESBL) production. Materials and methods: Thirty-two carbapenem-resistant MBL-producing P. aeruginosa burn isolates from Shahid Motahari Burn Hospital in Tehran were employed. Antibiotic susceptibility was determined to 13 antibiotics including imipenem and meropenem by disk diffusion. AmpC and ESBL production was detected by the AmpC disk test and combined disk diffusion assay, respectively. bla_{IMP} and bla_{VIM} gene carriage was shown by polymerase chain reaction and type-specific primers. Results: AmpC production was observed in 81% and ESBL production …

What Is The Effect Of Radioiodine Therapy On Helicobacter Pylori Infection?, Celi̇l Alper Usluoğullari, Eda Demi̇r Önal, Eli̇f Özdemi̇r, Sedat Caner, Osman Ersoy, Reyhan Ersoy, Beki̇r Çakir

Turkish Journal of Medical Sciences

Helicobacter pylori is an important human pathogen associated with gastric and duodenal ulcers, gastric mucosa-associated lymphoid tissue lymphoma, and adenocarcinoma. Radioiodine (RAI) treatment plays an important role in the management of differentiated thyroid cancer and primary hyperthyroidism. It is known that during RAI treatment, a considerable amount is absorbed by the stomach as well. In this study we aimed to reveal any therapeutic impact of RAI on H. pylori infections. Materials and methods: Eighty-seven patients who were hospitalized for RAI treatment were consecutively included in this study. Of those, 76 patients had differentiated thyroid cancer and 11 had primary hyperthyroidism. …

Factors Influencing Peripheral Skin Temperature Circadian Rhythm In Young Adult Males, Hannah Tranel

Theses and Dissertations--Kinesiology and Health Promotion

Periodic cues, including scheduled exercise, social interactions, sleep habits, and feeding time, have been shown to alter the circadian system. A disruption in circadian rhythms has been shown to have negative effects on health. Frequent skin temperature measures have been shown to be a valid method of assessing circadian rhythm parameters. The purpose of this study was to determine group mean differences in temperature amplitude, stability and lag measures among groups of young men of varying (optimal, fair and poor) adiposities. The strength of the association among the temperatures parameters and measures of body composition, physical fitness and activity, nutritional …

Bioerodible Calcium Sulfate Bone Grafting Substitutes With Tailored Drug Delivery Capabilities, Bryan R. Orellana

Theses and Dissertations--Biomedical Engineering

Bone regeneration or augmentation is often required prior to or concomitant with implant placement. With the limitations of many existing technologies, a biologically compatible synthetic bone grafting substitute that is osteogenic, bioerodible, and provides spacing-making functionality while acting as a drug delivery vehicle for bioactive molecules could provide an alternative to ‘gold standard’ techniques.

In the first part of this work, calcium sulfate (CS) space-making synthetic bone grafts with uniformly embedded poly(β-amino ester) (PBAE) biodegradable hydrogel particles was developed to allow controlled release of bioactive agents. The embedded gel particles’ influence on the physical and chemical characteristics of CS was …