Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Medical Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 10831 - 10860 of 13105

Full-Text Articles in Entire DC Network

Children With Sli Exhibit Delays Resolving Ambiguous Reference, Julie M. Estis, Brenda L. Beverly Jan 2015

Children With Sli Exhibit Delays Resolving Ambiguous Reference, Julie M. Estis, Brenda L. Beverly

University Faculty and Staff Publications

Fast mapping weaknesses in children with specific language impairment (SLI) may be explained by differences in disambiguation, mapping an unknown word to an unnamed object. The impact of language ability and linguistic stimulus on disambiguation was investigated. Sixteen children with SLI (8 preschool, 8 school-age) and sixteen typically developing age-matched children selected referents given familiar and unfamiliar object pairs in three ambiguous conditions: phonologically distinct word (PD), phonologically similar word (PS), no word (NW). Preschoolers with SLI did not disambiguate, unlike typically developing age-matched participants, who consistently selected unfamiliar objects given PD. School-age children with SLI disambiguated given PD. Delays …


Conduction States Of The Human Dopamine Transporter, Krasnodara Cameron Jan 2015

Conduction States Of The Human Dopamine Transporter, Krasnodara Cameron

Theses and Dissertations

Dysregulation of dopaminergic homeostasis has been established as the primary source of numerous neurological disorders including Parkinson’s and drug addiction. A tonic increase of dopamine (DA) in the nucleus accumbens is required for associating everyday events and behaviors with rewards. Yet many addictive exogenous compounds such as amphetamine (AMPH) and cocaine (COC) produce a much greater augmentation of synaptic DA levels that are linked to euphoria and a shift in behavior towards drug seeking. The protein responsible for maintaining extracellular levels of DA is the dopamine transporter (DAT). It is primarily located in the perisynaptic area at terminals of pre-synaptic …


Inhibition Of Mtor Signaling Protects Against Myocardial Reperfusion Injury, Acute Myocardial Infarction, Scott M. Filippone Jan 2015

Inhibition Of Mtor Signaling Protects Against Myocardial Reperfusion Injury, Acute Myocardial Infarction, Scott M. Filippone

Theses and Dissertations

Acute myocardial infarction (AMI) is the leading cause of death worldwide. Currently, the best method of treating cardiac ischemia is early reperfusion which, itself, induces myocardial damage. The mTOR complex is a key regulator of cardioprotection against cell stressors. We hypothesized that reperfusion therapy with Rapamycin, a potent mTOR inhibitor, would reduce infarct size in adult mouse hearts. Rapamycin was administered at the onset of reperfusion following 30 min in situ LAD ligation. After 24 hours of reperfusion, myocardial infarct size and apoptosis were significantly reduced in rapamycin-treated mice compared to control. Rapamycin inhibited pro-apoptotic protein Bax and phosphorylation of …


The Effects Of Prenatal Long-Duration Exposure To 900-Mhz Electromagnetic Field On The 21-Day-Old Newborn Male Rat Liver, Zehra Topal, Hati̇ce Hanci, Tolga Mercantepe, Hüseyi̇n Serkan Erol, Osman Nuri̇ Keleş, Haydar Kaya, Sevdegül Mungan, Ersan Odaci Jan 2015

The Effects Of Prenatal Long-Duration Exposure To 900-Mhz Electromagnetic Field On The 21-Day-Old Newborn Male Rat Liver, Zehra Topal, Hati̇ce Hanci, Tolga Mercantepe, Hüseyi̇n Serkan Erol, Osman Nuri̇ Keleş, Haydar Kaya, Sevdegül Mungan, Ersan Odaci

Turkish Journal of Medical Sciences

Background/aim: To determine what effect a 900-MHz electromagnetic field (EMF) applied in the prenatal period would have on the liver in the postnatal period. Materials and methods: At the start of the study, adult pregnant rats were divided into two groups, control and experimental. The experimental group was exposed to a 900-MHz EMF for 1 h daily during days 13?21 of pregnancy. After birth, no procedure was performed on either mothers or pups. Male rat pups (n = 6) from the control group mothers (CGMR) and male rat pups (n = 6) from the experimental group mothers (EGMR) were sacrificed …


Attentional Allocation In Language Processing In Adults Who Stutter: Erp Evidence, Wendy Lorraine Olsen Jan 2015

Attentional Allocation In Language Processing In Adults Who Stutter: Erp Evidence, Wendy Lorraine Olsen

USF Tampa Graduate Theses and Dissertations

The aim of this study was to investigate how young adults who stutterer allocate attentional resources during two linguistic stages in picture naming, specifically lemma and lexeme retrieval. This study reports on behavioral and brain electrophysiological data collected during a simple auditory oddball task and a Dual Picture-Word Interference/Tone Monitoring Task.


Protective Effects Of Royal Jelly Against Testicular Damage In Streptozotocin-Induced Diabetic Rats, Turan Karaca, Seli̇m Demi̇rtaş, İhsan Karaboğa, Süleyman Ayvaz Jan 2015

Protective Effects Of Royal Jelly Against Testicular Damage In Streptozotocin-Induced Diabetic Rats, Turan Karaca, Seli̇m Demi̇rtaş, İhsan Karaboğa, Süleyman Ayvaz

Turkish Journal of Medical Sciences

To examine the effects of royal jelly (RJ) on testicular damage in streptozotocin (STZ)-induced diabetic rats. Materials and methods: Eighteen adult Wistar albino rats were used, 6 in each of the 3 treatment groups: Group A: control, Group B: STZ-induced diabetes (untreated), Group C: STZ-induced diabetes plus RJ (400 mg/kg daily for 4 weeks). Diabetes was induced by a single intraperitoneal injection of STZ (60 mg/kg). Four weeks after the onset of diabetes, testicular apoptotic cell death was examined using immunohistochemical staining for caspase-3 and Ki67 staining for localization of proliferative cells. Results: Compared with the control, the body and …


Prognostic Value Of Hemostasis-Related Parameters For Prediction Of Organ Dysfunction And Mortality In Sepsis, Dunja Mihajlovic, Dajana Lendak, Gorana Mitic, Tatjana Cebovic, Biljana Draskovic, Aleksandra Novakov, Snezana Brkic Jan 2015

Prognostic Value Of Hemostasis-Related Parameters For Prediction Of Organ Dysfunction And Mortality In Sepsis, Dunja Mihajlovic, Dajana Lendak, Gorana Mitic, Tatjana Cebovic, Biljana Draskovic, Aleksandra Novakov, Snezana Brkic

Turkish Journal of Medical Sciences

Clinical manifestations of sepsis are not caused directly by the invading pathogens, but rather mostly by systemic inflammation that leads to activation of the coagulation system. The aim of this study was to determine whether levels of hemostasis-related parameters measured in intensive care unit admissions are associated with mortality and severity in patients with sepsis. Materials and methods: Eighty-five patients who fulfilled criteria for a diagnosis of sepsis were included in our study. Platelet count, activated partial thromboplastin time (aPTT), prothrombin time (PT), thrombin time, D-dimer, and fibrinogen levels were determined within the first 24 h from sepsis onset. Differences …


An Alternative Marker Of Low-Density Lipoprotein Cholesterol In Coronary Artery Disease: Non-High-Density Lipoprotein Cholesterol, Müjgan Ercan, Esra Oğuz, Fatma Meri̇ç Yilmaz, Ni̇hal Boğdaycioğlu, Kübranur Ünal, Deni̇z Şahi̇n, Sema Uysal Jan 2015

An Alternative Marker Of Low-Density Lipoprotein Cholesterol In Coronary Artery Disease: Non-High-Density Lipoprotein Cholesterol, Müjgan Ercan, Esra Oğuz, Fatma Meri̇ç Yilmaz, Ni̇hal Boğdaycioğlu, Kübranur Ünal, Deni̇z Şahi̇n, Sema Uysal

Turkish Journal of Medical Sciences

Dyslipidemia is one of the most important risk factors for coronary artery disease (CAD), and low-density lipoprotein cholesterol (LDL-C) is used to measure dyslipidemia. Non-high-density lipoprotein cholesterol (non-HDL-C) seems to be an alternative parameter to LDL-C as it is not influenced by triglyceride (TG) levels. The aim of this study is to compare non-HDL-C and LDL-C levels as risk markers in CAD patients. Materials and methods: One hundred and ten CAD patients and 42 individuals with normal coronary angiography results were included in this study. Patients were divided into 2 groups: TG < 200 mg/dL (n = 75) as group 1 and TG > 200 mg/dL (n = 35) as group 2. …


Hypo- And Hypervolemic Edema In Children With Steroid Sensitive Nephrotic Syndrome, Mehmet Aki̇f Büyükavci, Mahmut Çi̇vi̇li̇bal, Murat Elevli̇, Hati̇ce Ni̇lgün Selçuk Duru Jan 2015

Hypo- And Hypervolemic Edema In Children With Steroid Sensitive Nephrotic Syndrome, Mehmet Aki̇f Büyükavci, Mahmut Çi̇vi̇li̇bal, Murat Elevli̇, Hati̇ce Ni̇lgün Selçuk Duru

Turkish Journal of Medical Sciences

The mechanism of edema formation in nephrotic syndrome is still poorly understood. We aimed to evaluate the volume status in children with steroid-sensitive nephrotic syndrome (SSNS) and to emphasize the importance of echocardiography in demonstrating of volume changes. Materials and methods: Thirty-two SSNS patients and 30 healthy children were enrolled in this study. The volume statuses of patients were evaluated by clinical and laboratory features, including fractional sodium excretion (FENa) and distal sodium/potassium exchange (UK/UNa+K ratio). Inferior vena cava collapsibility index (IVCCI), left atrial diameter (LAD), aortic diameter (AD), and left ventricular mass index (LVMI) were measured using conventional echocardiographic …


Aberrant Expression Of Leukemia Inhibitory Factor Receptor (Lifr) And Leukemia Inhibitory Factor (Lif) Is Associated With Tubal Pregnancy Occurrence, Yong Li, Lizhou Sun, Denmei Zhao, Jun Ouyang, Mei Xiang Jan 2015

Aberrant Expression Of Leukemia Inhibitory Factor Receptor (Lifr) And Leukemia Inhibitory Factor (Lif) Is Associated With Tubal Pregnancy Occurrence, Yong Li, Lizhou Sun, Denmei Zhao, Jun Ouyang, Mei Xiang

Turkish Journal of Medical Sciences

Tubal pregnancy is a major cause of maternal death in the first trimester and exploration of its underlying molecular mechanism is of great importance. This study aimed to explore the association of tubal pregnancy with leukemia inhibitory factor (LIF) and leukemia inhibitory factor receptor (LIFR) expression in oviduct tissues. Materials and methods: Immunohistochemistry was performed to probe the differential expression of LIF and LIFR in oviduct tissues among a control group (including NP group, n = 11; and IP group, n = 12), tubal pregnancy group (Ect-N group, n = 31; and Ect-A group, n = 40), and chronically inflamed …


Comparison Of The Analgesic Effects Of Paracetamol And Tramadol In Lumbar Disc Surgery, Mehmet Zi̇ya Yilmaz, Bahri̇ye Bi̇nnur Sarihasan, Ebru Kelsaka, Ni̇lay Taş, Aysun Çağlar Torun, Ersi̇n Köksal, Eni̇s Kuruoğlu Jan 2015

Comparison Of The Analgesic Effects Of Paracetamol And Tramadol In Lumbar Disc Surgery, Mehmet Zi̇ya Yilmaz, Bahri̇ye Bi̇nnur Sarihasan, Ebru Kelsaka, Ni̇lay Taş, Aysun Çağlar Torun, Ersi̇n Köksal, Eni̇s Kuruoğlu

Turkish Journal of Medical Sciences

Background/aim: To compare the postoperative analgesic efficacy and side effects of paracetamol and tramadol in patients undergoing lumbar disc surgery. Materials and methods: Group P (paracetamol group) was given 1 g of paracetamol intravenously 30 min before the end of the operation and 1 g each day at 6-h intervals. Group T (tramadol group) was given 1.5 mg/kg of tramadol as a loading dose and patient-controlled analgesia for 1 day. Hemodynamic parameters, modified Aldrete score, Ramsay sedation scale score, patient satisfaction scale (PSS) score, visual analog scale (VAS) score, nausea/vomiting scale score, and additional analgesic needs/times were recorded. Results: PSS …


Serum Lp-Pla2: As A Novel Viewpoint In Periodontal Treatment Of Hyperlipidaemics, Özlem Fentoğlu, Fatma Yeşi̇m Kirzioğlu, Memduha Tözüm Bulut, Şi̇vge Kurgan, Havva Koçak, Recep Sütcü, Banu Kale Köroğlu, Meral Günhan Jan 2015

Serum Lp-Pla2: As A Novel Viewpoint In Periodontal Treatment Of Hyperlipidaemics, Özlem Fentoğlu, Fatma Yeşi̇m Kirzioğlu, Memduha Tözüm Bulut, Şi̇vge Kurgan, Havva Koçak, Recep Sütcü, Banu Kale Köroğlu, Meral Günhan

Turkish Journal of Medical Sciences

Background/aim: To evaluate the effects of periodontal treatment on serum lipoprotein-associated phospholipase A2 (Lp-PLA2) and C-reactive protein (CRP) levels in hyperlipidaemic patients with periodontitis. Materials and methods: The study included 52 hyperlipidaemics and 28 systemically healthy controls (C) with periodontitis. Of the 52 hyperlipidaemics, 29 received a suggested diet (HD), and 23 of them were prescribed statin (HS). Clinical periodontal parameters, serum lipids, Lp-PLA2, and CRP levels were assessed at the baseline and 2 months after the completion of the nonsurgical periodontal treatment (2MPT). Serum parameters were also evaluated 1 week following the periodontal treatment (1WPT). Results: At the baseline, …


Human Semen Quality And Sperm Dna Damage Assessed Bycomet Assay In Clinical Groups, Muhammad Haris Ramzan, Muhammad Ramzan, Muhammad Mumtaz Khan, Faiqah Ramzan, Fazal Wahab, Muhammad Aslam Khan, Musharraf Jillani, Mohsin Shah Jan 2015

Human Semen Quality And Sperm Dna Damage Assessed Bycomet Assay In Clinical Groups, Muhammad Haris Ramzan, Muhammad Ramzan, Muhammad Mumtaz Khan, Faiqah Ramzan, Fazal Wahab, Muhammad Aslam Khan, Musharraf Jillani, Mohsin Shah

Turkish Journal of Medical Sciences

Background/aim: About 10%-15% of couples around the world suffer from infertility. Male infertility is responsible directly or indirectly in ~60% of cases. A deficiency in semen is the most common cause of male infertility. Materials and methods: The study included 180 male subjects aged 18-50 years with 26 fertile and 154 infertile. The infertile subjects were further subdivided according to the WHO guidelines of semen analysis (2010) into different clinical groups. Sperm DNA damage was estimated using a neutral comet assay. Plasma gonadotropin and testosterone levels were measured using a chemiluminescence assay. Results: The results of the study revealed no …


The Risk Of Tumor Cell Dissemination In Mediastinoscopy: A Cytological Study, Yasemi̇n Bi̇lgi̇n Büyükkarabacak, Ayşen Taslak Şengül, Bi̇lge Can Meydan, Burçi̇n Çeli̇k, Mehmet Gökhan Pi̇rzi̇renli̇, Selçuk Gürz, Zeynep Peli̇n Sürücü, Ahmet Başoğlu Jan 2015

The Risk Of Tumor Cell Dissemination In Mediastinoscopy: A Cytological Study, Yasemi̇n Bi̇lgi̇n Büyükkarabacak, Ayşen Taslak Şengül, Bi̇lge Can Meydan, Burçi̇n Çeli̇k, Mehmet Gökhan Pi̇rzi̇renli̇, Selçuk Gürz, Zeynep Peli̇n Sürücü, Ahmet Başoğlu

Turkish Journal of Medical Sciences

Background/aim: Mediastinoscopy is an invasive procedure that is used in the diagnosis of mediastinal diseases and in staging lung cancer. Tumor cell seeding during mediastinoscopy along the mediastinum and the incision line is a very rare complication. This study aimed to test the safety of mediastinoscopy in terms of tumor seeding by cytological evaluation of mediastinal lavage samples taken before and after biopsy. Materials and methods: The patients who underwent mediastinoscopy in our hospital between 2011 and 2014 were studied prospectively. Seventy-three patients with a diagnosis of lung or mediastinal malignancy were included in the study. All patients underwent classical …


Epidemiological And Clinical Characteristics And Management Of Oropharyngeal Tularemia Outbreak, Mustafa Önder Uzun, Kerametti̇n Yanik, Müge Erdem, Uğur Kostakoğlu, Gürdal Yilmaz, Yeli̇z Tanriverdi̇ Çayci Jan 2015

Epidemiological And Clinical Characteristics And Management Of Oropharyngeal Tularemia Outbreak, Mustafa Önder Uzun, Kerametti̇n Yanik, Müge Erdem, Uğur Kostakoğlu, Gürdal Yilmaz, Yeli̇z Tanriverdi̇ Çayci

Turkish Journal of Medical Sciences

Background/aim: The purpose of this study was to determine the epidemiological and clinical characteristics of patients diagnosed with tularemia and the effectiveness of the administered treatments. Materials and methods: Patients treated in our hospital between January 2009 and March 2011 and diagnosed with tularemia were evaluated retrospectively. Patients' epidemiological and clinical characteristics, administered treatments, and posttreatment findings were recorded on patient monitoring forms. Results: At anamnesis, 29% of patients used water from wells and 71% used water from the network supply; moreover, 48.4% had a history of contact with animals and 87.1% a history of lethargy. At physical examination, 96.8% …


Herbal Self-Medication Use In Patients With Diabetes Mellitus Type 2, Ivana Damnjanovic, Dusanka Kitic, Nikola Stefanovic, Snezana Zlatkovic-Guberinic, Aleksandra Catic-Djordjevic, Radmila Velickovic-Radovanovic Jan 2015

Herbal Self-Medication Use In Patients With Diabetes Mellitus Type 2, Ivana Damnjanovic, Dusanka Kitic, Nikola Stefanovic, Snezana Zlatkovic-Guberinic, Aleksandra Catic-Djordjevic, Radmila Velickovic-Radovanovic

Turkish Journal of Medical Sciences

Background/aim: A considerable number of patients suffering from diabetes mellitus (DM) turn to self-medication using medicinal plants, preparations, and medicine. The aim of this study was to investigate self-medication using medicinal plants and the potential influence of health care professionals' advice or media information regarding the use of herbal dietary supplements with hypoglycemic effect in a population of patients with type 2 DM. Materials and methods: This research, in the form of an analytic cross-sectional study, was conducted in 6 pharmacies in the territory of Nis, Serbia, during October 2013. The criterion set for the study was to include patients …


Cognitive Problems Related To Vertebro-Basilar Circulation, Abdulkadi̇r Koçer Jan 2015

Cognitive Problems Related To Vertebro-Basilar Circulation, Abdulkadi̇r Koçer

Turkish Journal of Medical Sciences

Neurodegenerative disorders are characterized by decreased regional cerebral blood flow. Supporting this concept, both cognitive training exercises and physical activity promote blood flow increase and correlate with healthy cognitive aging. The terminal branches of the posterior circulation supply blood to areas of the brain, such as the thalamus, hippocampus, occipital lobe, and cerebellum, involved with important intellectual functions, particularly recent memory, visual-spatial functioning, and visuomotor adaptations. Amnesia and visual agnosia may be a complication of not only posterior circulation infarctions but also vertebrobasilar insufficiency (VBI) without accompanying structural infarcts. The cognitive impairment may be a manifestation of transient attacks and …


Evaluation Of Retinal Nerve Fiber Layer Thickness In Alzheimer Disease Usingspectral-Domain Optical Coherence Tomography, Ali̇me Güneş, Seden Demi̇rci̇, Levent Tök, Özlem Tök, Serpi̇l Demi̇rci̇ Jan 2015

Evaluation Of Retinal Nerve Fiber Layer Thickness In Alzheimer Disease Usingspectral-Domain Optical Coherence Tomography, Ali̇me Güneş, Seden Demi̇rci̇, Levent Tök, Özlem Tök, Serpi̇l Demi̇rci̇

Turkish Journal of Medical Sciences

Background/aim: To evaluate the retinal nerve fiber layer (RNFL) thickness in patients with Alzheimer disease (AD) and to compare the results with those of healthy controls. Materials and methods: Forty patients (mean age: 75.02 ± 6.34 years; 23 women) with untreated AD and 40 age-, sex-, and education-matched healthy patients were examined in this case-control prospective study. All patients underwent detailed ophthalmic and neurological examination. The Mini Mental State Examination (MMSE) was performed and RNFL thickness was measured using spectral-domain optical coherence tomography. The association between RNFL and MMSE score was also assessed. Results: The average RNFL thickness was 84 …


Test Your Memory-Turkish Version (Tym-Tr): Reliability And Validity Study Of A Cognitive Screening Test, İlknur Mavi̇ş, Belgi̇n Demet Özbabalik Adapinar, Çinar Yeni̇lmez, Ayşe Aydin, Engi̇n Olgun, Cengi̇z Bal Jan 2015

Test Your Memory-Turkish Version (Tym-Tr): Reliability And Validity Study Of A Cognitive Screening Test, İlknur Mavi̇ş, Belgi̇n Demet Özbabalik Adapinar, Çinar Yeni̇lmez, Ayşe Aydin, Engi̇n Olgun, Cengi̇z Bal

Turkish Journal of Medical Sciences

Background/aim: The test your memory (TYM) is reported to be a sensitive cognitive function assessment scale for people with dementia. The aim of the present study was to investigate the reliability and validity of an adapted Turkish version of the TYM (TYM-TR) among Turkish dementia patients. Materials and methods: The TYM-TR was given to 59 patients with dementia aged 60+ and 336 normal controls aged 23-75+. The diagnostic utility of the TYM-TR was compared with that of the mini-mental state examination (MMSE) to validate it. Results: The internal consistency of the TYM-TR was α = 0.85. The test-retest reliability was …


Mutation Analysis Of 6 Spinocerebellar Ataxia (Sca) Types In Patients From Southern Turkey, Perçi̇n Pazarci, Hali̇l Kasap, Ayşe Fi̇li̇z Koç, Şaki̇r Altunbaşak, Mehmet Ali̇ Erkoç Jan 2015

Mutation Analysis Of 6 Spinocerebellar Ataxia (Sca) Types In Patients From Southern Turkey, Perçi̇n Pazarci, Hali̇l Kasap, Ayşe Fi̇li̇z Koç, Şaki̇r Altunbaşak, Mehmet Ali̇ Erkoç

Turkish Journal of Medical Sciences

Background/aim: Spinocerebellar ataxias (SCAs) are complex clinical and genetically heterogeneous, mostly autosomal dominant neurodegenerative diseases. At present, more than 30 hereditary SCA types have been associated with different gene mutations. In this study, the frequency distribution of the 6 SCA types 1, 2, 3, 6, 7, and 17 in the Turkish population was investigated with respect to clinical features. Materials and methods: 159 patients who received a diagnosis of SCA and 42 healthy controls from Adana, Mersin, Gaziantep, Hatay, and Osmaniye provinces were included in the study. DNA samples were isolated from 2 mL blood samples and the number of …


Workplace Physical Violence, Verbal Violence, And Mobbing Experiencedby Nurses At A University Hospital, Fatma Nur Baran Aksakal, Emi̇ne Füsun Karaşahi̇n, Asi̇ye Uğraş Di̇kmen, Emi̇ne Avci, Seçi̇l Özkan Jan 2015

Workplace Physical Violence, Verbal Violence, And Mobbing Experiencedby Nurses At A University Hospital, Fatma Nur Baran Aksakal, Emi̇ne Füsun Karaşahi̇n, Asi̇ye Uğraş Di̇kmen, Emi̇ne Avci, Seçi̇l Özkan

Turkish Journal of Medical Sciences

Background/aim: The aim of this study was to determine the frequency of and risk factors for physical violence, verbal violence, and mobbing experienced by nurses in a university hospital. Materials and methods: This was a cross-sectional study conducted at Gazi University Medical Faculty Hospital. A questionnaire form recommended by the WHO and the International Labor Organization was administered through face-to-face interviews to determine the violence experienced in the past 12 months by nurses. Results: The prevalence of physical violence, verbal violence, and mobbing was 13.9%, 41.8%, and 17.1%, respectively. Working more than 40 h per week increased the risk of …


Paclitaxel-Loaded Niosomes For Intravenous Administration: Pharmacokineticsand Tissue Distribution In Rats, Zerri̇n Sezgi̇n Bayindir, Arzu Beşi̇kci̇, Ni̇lüfer Yüksel Jan 2015

Paclitaxel-Loaded Niosomes For Intravenous Administration: Pharmacokineticsand Tissue Distribution In Rats, Zerri̇n Sezgi̇n Bayindir, Arzu Beşi̇kci̇, Ni̇lüfer Yüksel

Turkish Journal of Medical Sciences

Background/aim: The purpose of this study was to investigate and compare the pharmacokinetic behavior and tissue distribution of paclitaxel, delivered as commercial preparation Taxol or through Span 40 niosomes, after intravenous injection to rats. Materials and methods: Paclitaxel-loaded Span 40 niosomes were prepared using the thin-film method. An HPLC method was developed and validated for paclitaxel determination in rat plasma and tissues. Results: The area under the curve value of the niosome-recipient group (3.22 ± 0.255 μg h/mL) was significantly higher compared to that of the Taxol group (0.725 ± 0.163 μg h/mL). The mean residence time and the elimination …


Cyp2d7 Sequence Variation Interferes With Taqman Cyp2d6 (*) 15 And (*) 35 Genotyping., Amanda K. Riffel, Mehdi Dehghani, Toinette Hartshorne, Kristen C. Floyd, J Steven Leeder, Kevin P. Rosenblatt, Andrea Gaedigk Jan 2015

Cyp2d7 Sequence Variation Interferes With Taqman Cyp2d6 (*) 15 And (*) 35 Genotyping., Amanda K. Riffel, Mehdi Dehghani, Toinette Hartshorne, Kristen C. Floyd, J Steven Leeder, Kevin P. Rosenblatt, Andrea Gaedigk

Manuscripts, Articles, Book Chapters and Other Papers

TaqMan™ genotyping assays are widely used to genotype CYP2D6, which encodes a major drug metabolizing enzyme. Assay design for CYP2D6 can be challenging owing to the presence of two pseudogenes, CYP2D7 and CYP2D8, structural and copy number variation and numerous single nucleotide polymorphisms (SNPs) some of which reflect the wild-type sequence of the CYP2D7 pseudogene. The aim of this study was to identify the mechanism causing false-positive CYP2D6 (*) 15 calls and remediate those by redesigning and validating alternative TaqMan genotype assays. Among 13,866 DNA samples genotyped by the CompanionDx® lab on the OpenArray platform, 70 samples were identified as …


History Of Concussion And Current Functional Movement Screen Scores In A Collegiate Recreational Population, Jordan M. Dorrien Jan 2015

History Of Concussion And Current Functional Movement Screen Scores In A Collegiate Recreational Population, Jordan M. Dorrien

College of Graduate Studies: Theses & Dissertations

Introduction: 1.6-3.8 million concussions occur annually related to sport.1 Although neurometabolic alterations in the brain last 7-10 days following a concussion, an increased Cortical Silent Period (CSP) has been found to persist after 19 months.2,3 Further, movement impairments have been noted years after injury.4 The Functional Movement Screen (FMS) assesses mobility and stability in the body.5 The purpose of this study was to assess if FMS scores correlate to history of a concussion in healthy college club sport participants. Methods: Health history and FMS score were collected on 55 participants (38 male, …


Alzheimer's Disease Cerebrospinal Fluid Biomarkers Are Not Influenced By Gravity Drip Or Aspiration Extraction Methodology, Alan Rembach, Lisbeth A. Evered, Qiao-Xin Li, Tabitha Nash, Lesley Vidaurre, Christopher J. Fowler, Kelly K. Pertile, Rebecca L. Rumble, Brett O. Trounson, Sarah Maher, Francis Mooney, Maree Farrow, Kevin Taddei, Stephanie Rainey-Smith, Simon Laws, S. Lance Macaulay, William Wilson, David G. Darby, Ralph N. Martins, David Ames, Steven Collins, Brendon Silbert, Colin L. Masters, James D. Doecke Jan 2015

Alzheimer's Disease Cerebrospinal Fluid Biomarkers Are Not Influenced By Gravity Drip Or Aspiration Extraction Methodology, Alan Rembach, Lisbeth A. Evered, Qiao-Xin Li, Tabitha Nash, Lesley Vidaurre, Christopher J. Fowler, Kelly K. Pertile, Rebecca L. Rumble, Brett O. Trounson, Sarah Maher, Francis Mooney, Maree Farrow, Kevin Taddei, Stephanie Rainey-Smith, Simon Laws, S. Lance Macaulay, William Wilson, David G. Darby, Ralph N. Martins, David Ames, Steven Collins, Brendon Silbert, Colin L. Masters, James D. Doecke

Research outputs 2014 to 2021

Introduction Cerebrospinal fluid (CSF) biomarkers, although of established utility in the diagnostic evaluation of Alzheimer’s disease (AD), are known to be sensitive to variation based on pre-analytical sample processing. We assessed whether gravity droplet collection versus syringe aspiration was another factor influencing CSF biomarker analyte concentrations and reproducibility. Methods Standardized lumbar puncture using small calibre atraumatic spinal needles and CSF collection using gravity fed collection followed by syringe aspirated extraction was performed in a sample of elderly individuals participating in a large long-term observational research trial. Analyte assay concentrations were compared. Results For the 44 total paired samples of gravity …


Inflamation And Oxidative Stress : The Molecular Connectivity Between Insulin Resistance, Obesity And Alzheimer's Disease, Guiseppe Verdile, Kevin N. Keane, Vinicius F. Cruzat, Sandra Medic, Miheer Sabale, Joanne Rowles, Nadeeja Wijesekara, Ralph Martins, Paul E. Fraser, Philip Newsholme Jan 2015

Inflamation And Oxidative Stress : The Molecular Connectivity Between Insulin Resistance, Obesity And Alzheimer's Disease, Guiseppe Verdile, Kevin N. Keane, Vinicius F. Cruzat, Sandra Medic, Miheer Sabale, Joanne Rowles, Nadeeja Wijesekara, Ralph Martins, Paul E. Fraser, Philip Newsholme

Research outputs 2014 to 2021

Type 2 diabetes (T 2 DM), Alzheimer’s disease (AD), and insulin resistance are age-related conditions and increased prevalence is of public concern. Recent research has provided evidence that insulin resistance and impaired insulin signalling may be a contributory factor to the progression of diabetes, dementia, and other neurological disorders. Alzheimer’s disease (AD) is the most common subtype of dementia. Reduced release (for T 2 DM) and decreased action of insulin are central to the development and progression of both T 2 DM and AD. A literature search was conducted to identify molecular commonalities between obesity, diabetes, and AD. Insulin resistance …


Whole-Genome Sequencing Of Kaposi’S Sarcoma-Associated Herpesvirus From Zambian Kaposi’S Sarcoma Biopsy Specimens Reveals Unique Viral Diversity, Landon Olp, Adrien Jeanniard, Clemence Marimo, Charles Wood Jan 2015

Whole-Genome Sequencing Of Kaposi’S Sarcoma-Associated Herpesvirus From Zambian Kaposi’S Sarcoma Biopsy Specimens Reveals Unique Viral Diversity, Landon Olp, Adrien Jeanniard, Clemence Marimo, Charles Wood

Nebraska Center for Virology: Faculty Publications

Kaposi’s sarcoma-associated herpesvirus (KSHV) is the etiological agent for Kaposi’s sarcoma (KS). Both KSHV and KS are endemic in sub-Saharan Africa where approximately 84% of global KS cases occur. Nevertheless, whole-genome sequencing of KSHV has only been completed using isolates from Western countries—where KS is not endemic. The lack of whole-genome KSHV sequence data from the most clinically important geographical region, sub-Saharan Africa, represents an important gap since it remains unclear whether genomic diversity has a role on KSHV pathogenesis. We hypothesized that distinct KSHV genotypes might be present in sub-Saharan Africa compared to Western countries. Using a KSHV-targeted enrichment …


The Hippo/Yap Pathway Interacts With Egfr Signaling And Hpv Oncoproteins To Regulate Cervical Cancer Progression, Chunbo He, Dagan Mao, Guohua Hua, Xiangmin Lv, Xingcheng Chen, Peter C. Angeletti, Jixin Dong, Steven W. Remmenga, Kerry J. Rodabaugh, Jin Zhou, Paul F. Lambert, Peixin Yang, John S. Davis, Cheng Wang Jan 2015

The Hippo/Yap Pathway Interacts With Egfr Signaling And Hpv Oncoproteins To Regulate Cervical Cancer Progression, Chunbo He, Dagan Mao, Guohua Hua, Xiangmin Lv, Xingcheng Chen, Peter C. Angeletti, Jixin Dong, Steven W. Remmenga, Kerry J. Rodabaugh, Jin Zhou, Paul F. Lambert, Peixin Yang, John S. Davis, Cheng Wang

Nebraska Center for Virology: Faculty Publications

The Hippo signaling pathway controls organ size and tumorigenesis

through a kinase cascade that inactivates Yes-associated

protein (YAP). Here, we show that YAP plays a central role in

controlling the progression of cervical cancer. Our results suggest

that YAP expression is associated with a poor prognosis for cervical

cancer. TGF-α and amphiregulin (AREG), via EGFR, inhibit the Hippo

signaling pathway and activate YAP to induce cervical cancer cell

proliferation and migration. Activated YAP allows for up-regulation

of TGF-α, AREG, and EGFR, forming a positive signaling loop to

drive cervical cancer cell proliferation. HPV E6 protein, a major

etiological molecule of …


Mutations In The 5’ Ntr And The Non-Structural Protein 3a Of The Coxsackievirus B3 Selectively Attenuate Myocarditogenicity, Chandirasegaran Massilamany, Arunakumar Gangaplara, Rakesh H. Basavalingappa, Rajkumar A. Rajasekaran, Hiep Vu, Jean-Jack Riethoven, David Steffen, Asit K. Pattnaik, Jay Reddy Jan 2015

Mutations In The 5’ Ntr And The Non-Structural Protein 3a Of The Coxsackievirus B3 Selectively Attenuate Myocarditogenicity, Chandirasegaran Massilamany, Arunakumar Gangaplara, Rakesh H. Basavalingappa, Rajkumar A. Rajasekaran, Hiep Vu, Jean-Jack Riethoven, David Steffen, Asit K. Pattnaik, Jay Reddy

School of Veterinary and Biomedical Sciences: Faculty Publications

The 5’ non-translated region (NTR) is an important molecular determinant that controls replication and virulence of coxsackievirus B (CVB)3. Previous studies have reported many nucleotide (nt) sequence differences in the Nancy strain of the virus, including changes in the 5’ NTR with varying degrees of disease severity. In our studies of CVB3-induced myocarditis, we sought to generate an infectious clone of the virus for routine in vivo experimentation. By determining the viral nt sequence, we identified three new nt substitutions in the clone that differed from the parental virus strain: C97U in the 5’ NTR; a silent mutation, A4327G, in …


Association Of Autophagy In The Cell Death Mediated By Dihydrotestosterone In Autoreactive T Cells Independent Of Antigenic Stimulation, Ting Jia, Annandurai Anandhan, Chandirasegaran Massilamany, Rajkumar A. Rajasekaran, Rodrigo Franco, Jay Reddy Jan 2015

Association Of Autophagy In The Cell Death Mediated By Dihydrotestosterone In Autoreactive T Cells Independent Of Antigenic Stimulation, Ting Jia, Annandurai Anandhan, Chandirasegaran Massilamany, Rajkumar A. Rajasekaran, Rodrigo Franco, Jay Reddy

School of Veterinary and Biomedical Sciences: Faculty Publications

Gender disparity is well documented in the mouse model of experimental autoimmune encephalomyelitis (EAE) induced with proteolipid protein (PLP) 139–151, in which female, but not male, SJL mice show a chronic relapsing-remitting paralysis. Furthermore, dihydrotestosterone (DHT) has been shown to ameliorate the severity of EAE, but the underlying mechanisms of its protective effects are unclear. Using major histocompatibility complex (MHC) class II dextramers for PLP 139-151, we tested the hypothesis that DHT selectively modulates the expansion and functionalities of antigen-specific T cells. Unexpectedly, we noted that DHT induced cell death in antigen-specific, autoreactive T cells, but the effects were not …