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Life Sciences

2008

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Articles 481 - 506 of 506

Full-Text Articles in Medicine and Health Sciences

The Influence Of Epidermal Growth Factor On Maturation And Fertilisation Of Bovine Oocytes In Vitro, Bülent Polat, M. Rifat Salmanoğlu Jan 2008

The Influence Of Epidermal Growth Factor On Maturation And Fertilisation Of Bovine Oocytes In Vitro, Bülent Polat, M. Rifat Salmanoğlu

Turkish Journal of Veterinary & Animal Sciences

The aim of the present study was to evaluate the efficiency of different doses of epidermal growth factor (EGF) on maturation and fertilisation of bovine oocytes in vitro. A total of 1209 high quality oocytes (follicles 2-8 mm in diameter, with unexpanded cumulus cells) were obtained by aspiration from ovaries collected at a slaughterhouse. The oocytes were then assigned into 6 groups: 1, 10, 100, and 1000 ng/ml EGF groups, as well as positive (EGF replaced with hCG) and negative (TCM 199 only, no supplement) control groups. Maturation and fertilisation rates were calculated at 39 °C in an atmosphere of …


Immunomodulatory And Protective Effects Of Sugar Cane Juice In Chickens Against Eimeria Infection, Masood Akhtar, M. Abdul Hafeez, Faqir Muhammad, Ahsan Ul Haq, M. Irfan Anwar Jan 2008

Immunomodulatory And Protective Effects Of Sugar Cane Juice In Chickens Against Eimeria Infection, Masood Akhtar, M. Abdul Hafeez, Faqir Muhammad, Ahsan Ul Haq, M. Irfan Anwar

Turkish Journal of Veterinary & Animal Sciences

Present paper reports the effects of sugar cane juice (SCJ) on immune responses and its protection against Eimeria (mixed species) infections in broiler chickens. Experiment 1 was conducted to test the dose efficacy of SCJ and its effects on chickens against coccidiosis. Maximum weight gain per day was recorded in chickens given SCJ @ 400 mg/kg body weight. Significantly (P < 0.01) low mortality and increased body weight gain per day were recorded in chickens administered SCJ orally and challenged with mixed species of genus Eimeria. Furthermore, mild hemorrhages, lower lesion scores (+1), and significantly lower number of oocysts shed in faeces were recorded in immunized chickens compared to control. Experiment 2 was carried out to evaluate the immunomodulatory effects of SCJ on cellular and humoral responses. Highest antibody titres (1:1024-1:16; GMT 367.28) were recorded in chickens administered SCJ @ 400 mg/kg body weight in comparison with control (1:16-1:2; GMT 2.82). To demonstrate the cell mediated immunity (CMI), amplitude of toe-web swelling 72 h post avian tuberculin injection was recorded in the experimental and control groups. Maximum swelling (8.13 ± 0.21 mm) was recorded in the experimental group as compared to control (1.04 ± 0.10); indicating higher cell mediated immune response. From these results it was concluded that SCJ elicit a significantly higher cellular and humoral responses compared to control, which may provide protection against Eimeria infections (mixed species) in chickens.


Seroprevalence Of Coxiella Burnetii In Stray Cats In Central Anatolia, Selçuk Kiliç, Tomoyoshi Komiya, Beki̇r Çelebi̇, Ni̇jat Aydin, Junko Saito, Hiroko Toriniwa, Bi̇lge Karatepe, Cahi̇t Babur Jan 2008

Seroprevalence Of Coxiella Burnetii In Stray Cats In Central Anatolia, Selçuk Kiliç, Tomoyoshi Komiya, Beki̇r Çelebi̇, Ni̇jat Aydin, Junko Saito, Hiroko Toriniwa, Bi̇lge Karatepe, Cahi̇t Babur

Turkish Journal of Veterinary & Animal Sciences

Coxiella burnetii causes Q fever (Coxiellosis) in humans and animals worldwide. The present study was carried out to determine the seroprevalence of Q fever among stray cats in 3 providences (Ankara, Niğde, and Kayseri) in Central Anatolia, Turkey. A total of 143 sera from stray cats were examined for the presence of IgG against C. burnetii phase II antigen by indirect fluorescent antibody test (IFAT). Seven out of the 143 (4.9%) stray cats were seropositive for Q fever, with titers of 1:64 to 1:256. Seroprevalences in Ankara, Niğde, and Kayseri provinces were 1.6%, 7.4%, and 8.3%, respectively. This is the …


Disseminated Streptococcus Equi Subsp. Zooepidemicus Infection In A Foal And Associated Mastitis In A Mare, A. Levent Kocabiyik, Esra Büyükcangaz, Ahmet Akkoç, Cüneyt Özakin, İ. Taci̇ Cangül Jan 2008

Disseminated Streptococcus Equi Subsp. Zooepidemicus Infection In A Foal And Associated Mastitis In A Mare, A. Levent Kocabiyik, Esra Büyükcangaz, Ahmet Akkoç, Cüneyt Özakin, İ. Taci̇ Cangül

Turkish Journal of Veterinary & Animal Sciences

A systemic infection with Streptococcus equi subsp. zooepidemicus is described in a 22-day-old female foal for the first time in Turkey. Clinically the foal was in poor condition and had severe pneumonia. Painful swellings of the carpal and tarsal joints were evident. Examination of the dam revealed clinical mastitis. Postmortem histopathological and microbiological examinations of samples from the foal revealed a disseminated infection with S. equi subsp. zooepidemicus. The causative agent was also recovered in pure culture from a milk sample of the mare.


Pathoecology And The Future Of Coprolite Studies In Bioarchaeology, Karl J. Reinhard, Vaughn M. Bryant Jr. Jan 2008

Pathoecology And The Future Of Coprolite Studies In Bioarchaeology, Karl J. Reinhard, Vaughn M. Bryant Jr.

Karl Reinhard Publications

Human coprolites currently provide an expanding array of information about the diet, health, and ecology of prehistoric people in the Southwest, but for many years coprolites were not recognized or preserved, or they were not considered important and thus were not saved (Bryant and Dean 2006). With the expansion of archaeological field work during the last half of the twentieth century archaeologists have increasingly explored the "complete" potentials of sites, including the collection and analysis of geomorphologic, botanical, and faunal data. In some ideal habitats (e.g., very dry or frozen) this includes exploring the scientific potential of human coprolite studies. …


Pathoecology Of Two Ancestral Pueblo Villages, Karl Reinhard Jan 2008

Pathoecology Of Two Ancestral Pueblo Villages, Karl Reinhard

Karl Reinhard Publications

Pathoecology is the study of the biotic, abiotic, and cultural environments of disease (Martinson et al. 2003). A parasitic infection is the result of the pathoecological interaction of host behavior, parasite life cycle, the environment in which both life forms live, the nutritional status of the host, and host physiological responses to all of these factors. Parasites contribute to anemia in many ways. Some, such as hookworm, actually consume blood and cause iron loss through their activities. For other parasites, symptoms such as profuse diarrhea reduce intestinal absorption of nutrients. Others, such as certain fish tapeworms, actually compete for absorption …


Parasite Pathoecology Of Salmon Pueblo And Other Chacoan Great Houses: The Healthiest And Wormiest Ancestral Puebloans, Karl Reinhard Jan 2008

Parasite Pathoecology Of Salmon Pueblo And Other Chacoan Great Houses: The Healthiest And Wormiest Ancestral Puebloans, Karl Reinhard

Karl Reinhard Publications

Two fields of paleopathological investigation originated in the Southwest. Archaeoparasitology is the study of ancient parasite infection (Reinhard 1990, 1992b). It includes comparisons between time periods of single societies as well as comparisons of parasitism between different, contemporaneous cultures. For example, Fry (1980) compared Fremont and Anasazi parasitism, and also Archaic hunter-gatherer and ancestral Pueblo parasitism. All of these studies fall into the definition of archaeoparasitology.

By contrast, pathoecology is the reconstruction of relationships among behavior, environment, and disease organisms in the development of illness (Martinson et al. 2003; ReinhardandBuikstra2003; Reinhardet al. 2003; Santoro et al. 2003).1his field developed from …


Cranial Deformation As The Cause Of Death For A Child From The Chillon River Valley, Peru, Shelia M.F. Medoncade Souza, Karl J. Reinhard, Andrea Lessa Jan 2008

Cranial Deformation As The Cause Of Death For A Child From The Chillon River Valley, Peru, Shelia M.F. Medoncade Souza, Karl J. Reinhard, Andrea Lessa

Karl Reinhard Publications

Two small mummy bundles, found in a tomb at the Chillon River Valley, Lima Plains, Peru exist in the collections of the Museu Nacional, Rio de Janeiro, Brazil. They were donated to the collections at the beginning of the 20th century. A multidisciplinary team is now curating and studying them. CT scans confirmed both skeletons were of individuals less than one year old at death. One of the bundles is intact and will be preserved and displayed. The other one was partly decomposed and the authors received permission to unwrap it to analyze the bones in details. Mites and pollen …


A Child And His Fate: Tuberculosis, Perimortem Trauma And Mummification, Sheila M. M.De Souza, Karl J. Reinhard, Bernardo Tessarollo, Jose Fernando Cardona Zannier, Adauto Araujo Jan 2008

A Child And His Fate: Tuberculosis, Perimortem Trauma And Mummification, Sheila M. M.De Souza, Karl J. Reinhard, Bernardo Tessarollo, Jose Fernando Cardona Zannier, Adauto Araujo

Karl Reinhard Publications

A male child, sitting, 7 years, circumferential deformation, skin marked by coiled fibers, nostril plugs, consistent with Aymara practices was CT scanned. Puppae in the skin suggest exposition of the body previous to the funeral. Dark brown color at the skin suggest blood perfusion. A broken area at the right frontal with the skin partially inside is suggestive of perimorten trauma. There were no bone debris inside the skull and the CT images show two confluent fractures defined by radiating lines extending beyond the missing bone surface. The right eyeball is projected out, the tongue is outside the mouth, the …


Enterobius Vermicularis Ancient Dna In Pre-Columbian Human Populations, Alena Mayo Iniguez, Karl J. Reinhard, Luiz Fernando Ferreira, Adauto Araujo, Ana Carolina, Paulo Vincente Jan 2008

Enterobius Vermicularis Ancient Dna In Pre-Columbian Human Populations, Alena Mayo Iniguez, Karl J. Reinhard, Luiz Fernando Ferreira, Adauto Araujo, Ana Carolina, Paulo Vincente

Karl Reinhard Publications

In prehistoric populations the paleoparasitological findings show an Enterobius vennicularis homogeneous distribution among North American hunter-gatherers intensified with the advent of agriculture. The same occurred in the transition from nomad hunter-gatherers to sedentary farmers in South America, although E. vermicularis infection encompasses only the ancient Andean peoples. Since molecular techniques are sensitive in detecting ancient DNA (aDNA), in this work we have performed a molecular paleoparasitological study of E. vermicularis. aDNA was recovered from North and South American coprolites (4110 BC-AD 900). Human (cox 2 and HVR) and pinworm (5S rRNA spacer) sequences were determined. The sequence analysis confirmed E. …


Paleoparasitology: Perspectives With New Techniques, Adauto Araújo, Karl Reinhard, Otilio M. Bastos, Ligia C. Costa, Claude Pirmez, Alena Iñighez, Ana Carolina Vicente, Carlos M. Morel, Luiz Fernando Ferreira Jan 2008

Paleoparasitology: Perspectives With New Techniques, Adauto Araújo, Karl Reinhard, Otilio M. Bastos, Ligia C. Costa, Claude Pirmez, Alena Iñighez, Ana Carolina Vicente, Carlos M. Morel, Luiz Fernando Ferreira

Karl Reinhard Publications

Paleoparasitology is the study of parasites found in archaeological material. The development of this field of research began with histological identification of helminth eggs in mummy tissues, analysis of coprolites, and recently through molecular biology. An approach to the history of paleoparasitology is reviewed in this paper, with special reference to the studies of ancient DNA identified in archaeological material.

Paleoparasitologia: perspectivas com novas técnicas
Paleoparasitologia é o estudo de parasitos encontrados em material arqueológico. O desenvolvimento deste campo da pesquisa teve início com a identificação de ovos de helmintos em tecidos mumificados, análise de coprólitos e, recentemente, através da …


Gene Therapy Using Tet-Repressor System To Modulate Prostate Tumor Microenvironment, Nazita Yousefieh Jan 2008

Gene Therapy Using Tet-Repressor System To Modulate Prostate Tumor Microenvironment, Nazita Yousefieh

Theses and Dissertations in Biomedical Sciences

Prostate cancer is the most commonly diagnosed malignancy in men in the United States and is projected to be the third most frequent cause of male cancer-related deaths in 2007 after lung and skin cancers. The initial treatment for prostate cancer at early stages is prostatectomy or radiation, which usually is curative. However, approximately 20% of patients are not cured by such treatments and their cancer recurs, sometimes with long latencies. In other patients prostate cancer is diagnosed only after the cancer has metastasized and there are no effective therapies at this stage. Therefore immunotherapy seems to be a promising …


Adenylyl Cyclase Type 6 Overexpression Selectively Enhances Ss-Adrenergic And Prostacyclin Receptor Mediated Inhibition Of Rat Cardiac Fibroblast Function Due To Co-Localization In Lipid Rafts, Xiaoqiu Liu, Muthusamy Thangavel, Shu Qiang Sun, Joseph Kaminsky, Penden Mahautmr, Jeremiah Stitham, John Hwa, Rennolds S. Ostrom Jan 2008

Adenylyl Cyclase Type 6 Overexpression Selectively Enhances Ss-Adrenergic And Prostacyclin Receptor Mediated Inhibition Of Rat Cardiac Fibroblast Function Due To Co-Localization In Lipid Rafts, Xiaoqiu Liu, Muthusamy Thangavel, Shu Qiang Sun, Joseph Kaminsky, Penden Mahautmr, Jeremiah Stitham, John Hwa, Rennolds S. Ostrom

Pharmacy Faculty Articles and Research

Cardiac fibroblasts produce and degrade extracellular matrix and are critical in regulating cardiac remodeling and hypertrophy. Fibroblasts are activated by factors such as transforming growth factor β and inhibited by agents that elevate 3′,5′-cyclic adenosine monophosphate (cAMP) levels. cAMP signal generation and response is known to be compartmentalized in many cell types in part through the colocalization of receptors and specific adenylyl cyclase isoforms in lipid rafts and caveolae. The present study sought to define the localization of key G protein-coupled receptors with adenylyl cyclase type 6 (AC6) in lipid rafts of rat cardiac fibroblasts and to determine if this …


Maldi Mass Spectrometry Imaging For The Discovery Of Prostate Carcinoma Biomarkers, Lisa Harris Cazares Jan 2008

Maldi Mass Spectrometry Imaging For The Discovery Of Prostate Carcinoma Biomarkers, Lisa Harris Cazares

Theses and Dissertations in Biomedical Sciences

The elucidation of new biological markers of prostate cancer (PCa) should aid in the detection, and prognosis of this disease. Diagnostic decision making by pathologists in prostate cancer is highly dependent on tissue morphology. The ability to localize disease-specific molecular changes in tissue would help improve this critical pathology decision making process. Direct profiling of proteins in tissue sections using MALDI imaging mass spectrometry (MALDI-IMS) has the power to link molecular detail to morphological and pathological changes, enhancing the ability to identify candidates for new specific biomarkers. However, critical questions remain regarding the integration of this technique with clinical decision …


Electrical Detection Of The Temperature Induced Melting Transition Of A Dna Hairpin Covalently Attached To Gold Interdigitated Microelectrodes, Greg P. Brewood, Yaswanth Rangineni, Daniel J. Fish, Ashwini Bhandiwad, David R. Evans, Raj Solanki, Albert S. Benight Jan 2008

Electrical Detection Of The Temperature Induced Melting Transition Of A Dna Hairpin Covalently Attached To Gold Interdigitated Microelectrodes, Greg P. Brewood, Yaswanth Rangineni, Daniel J. Fish, Ashwini Bhandiwad, David R. Evans, Raj Solanki, Albert S. Benight

Chemistry Faculty Publications and Presentations

The temperature induced melting transition of a self-complementary DNA strand covalently attached at the 5' end to the surface of a gold interdigitated microelectrode (GIME) was monitored in a novel, label-free, manner. The structural state of the hairpin was assessed by measuring four different electronic properties of the GIME (capacitance, impedance, dissipation factor and phase angle) as a function of temperature from 25 degrees C to 80 degrees C. Consistent changes in all four electronic properties of the GIME were observed over this temperature range, and attributed to the transition of the attached single-stranded DNA (ssDNA) from an intramolecular, folded …


Invited Review: Heat Shock Proteins And Exercise: A Primer, Earl Noble, Kevin Milne, C.W. Melling Dec 2007

Invited Review: Heat Shock Proteins And Exercise: A Primer, Earl Noble, Kevin Milne, C.W. Melling

Jamie Melling

Heat shock proteins (HSPs) are, in general, prosurvival molecules within the cellular environment, and the overexpression of even just 1 family of HSPs can lead to protection against and improvements after a variety of stressors. Not surprisingly, a fertile area of study has grown out of effors to exploit the innate biologic behaviour of HSPs. Exercise, because of the inherent physiologic stresses associated with it, is but 1 stimulus that can result in a robust increase in various HSPs in several tissues, not the least of which happen to be the heart and skeletal muscle. The purpose of this review …


Heat Shock Proteins And Whole Body Physiology, Earl Nobe, C.W. James Melling, Kevin Milne Dec 2007

Heat Shock Proteins And Whole Body Physiology, Earl Nobe, C.W. James Melling, Kevin Milne

Jamie Melling

No abstract provided.


Stomping The Shadow: The Elevation Of Snowboarding To The Olympic Pedestal From A Jungian Perspective, Megan Popovic, Don Morrow Dec 2007

Stomping The Shadow: The Elevation Of Snowboarding To The Olympic Pedestal From A Jungian Perspective, Megan Popovic, Don Morrow

Donald Morrow

No abstract provided.


Imaging Of Transplanted Pancreatic Islets In Vivo, P. Joo Ho Tai, C. Foster, C. Hasil, C.W.J. Melling, D. White Dec 2007

Imaging Of Transplanted Pancreatic Islets In Vivo, P. Joo Ho Tai, C. Foster, C. Hasil, C.W.J. Melling, D. White

Jamie Melling

No abstract provided.


Structural And Dynamic Basis Of Phospholamban And Sarcolipin Inhibition Of Ca2+-Atpase, Nathaniel J. Traaseth, Kim N. Ha, Raffaello Verardi, Lei Shi, Jarrod J. Buffy, Larry R. Masterson, Gianluigi Veglia Dec 2007

Structural And Dynamic Basis Of Phospholamban And Sarcolipin Inhibition Of Ca2+-Atpase, Nathaniel J. Traaseth, Kim N. Ha, Raffaello Verardi, Lei Shi, Jarrod J. Buffy, Larry R. Masterson, Gianluigi Veglia

Larry Masterson

Phospholamban (PLN) and sarcolipin (SLN) are two single-pass membrane proteins that regulate Ca2+-ATPase (SERCA), an ATP-driven pump that translocates calcium ions into the lumen of the sarcoplasmic reticulum, initiating muscle relaxation. Both proteins bind SERCA through intramembrane interactions, impeding calcium translocation. While phosphorylation of PLN at Ser-16 and/or Thr-17 reestablishes calcium flux, the regulatory mechanism of SLN remains elusive. SERCA has been crystallized in several different states along the enzymatic reaction coordinates, providing remarkable mechanistic information; however, the lack of high-resolution crystals in the presence of PLN and SLN limits the current understanding of the regulatory mechanism. This …


Cellular Effects Of Antiepileptic Drugs, Robert L. Macdonald, Michael A. Rogawski Dec 2007

Cellular Effects Of Antiepileptic Drugs, Robert L. Macdonald, Michael A. Rogawski

Michael A. Rogawski

Antiepileptic drugs (AEDs) protect against seizures through interactions with a variety of cellular targets, which include various ion channels, a neurotransmitter transporter, a neurotransmitter metabolic enzyme, and a synaptic vesicle protein. AED actions on these targets can be categorized into four broad groups: 1. Modulation of voltage-dependent ion channels (mainly sodium [Na] but also calcium [Ca] channels) 2. Effects on γ-aminobutyric acid (GABA) systems, including alterations in the cellular disposition of GABA and enhancement of synaptic inhibition mediated by GABA-A receptors 3. Inhibition of synaptic excitation mediated by ionotropic glutamate receptors 4. Modulation of neurotransmitter release, particularly of glutamate, through …


Correlation Network Analysis For Data Integration And Biomarker Selection, Aram Adourian, Ezra Jennings, Raji Balasubramanian, Wade M. Hines, Doris Damian, Tom N. Plasterer, Clary B. Clish, Paul Stroobant, Robert N. Mcburney, Elwin R. Verheij, Ivana I. Bobeldijk, J Van Der Greef, J Lindberg, K Kenne, U Andersson, H Hellmold, K Nilsson, H Salter, I Schuppe-Koistinen Dec 2007

Correlation Network Analysis For Data Integration And Biomarker Selection, Aram Adourian, Ezra Jennings, Raji Balasubramanian, Wade M. Hines, Doris Damian, Tom N. Plasterer, Clary B. Clish, Paul Stroobant, Robert N. Mcburney, Elwin R. Verheij, Ivana I. Bobeldijk, J Van Der Greef, J Lindberg, K Kenne, U Andersson, H Hellmold, K Nilsson, H Salter, I Schuppe-Koistinen

Raji Balasubramanian

This work demonstrates the application of correlation networks to a systems-based investigation of drug-induced hepatotoxicity and the identification of specific and relevant biomarkers in this context.


Effect Of Two Milling Techniques And Flours Particle Size On Some, Theodore N'Dede Djeni Dec 2007

Effect Of Two Milling Techniques And Flours Particle Size On Some, Theodore N'Dede Djeni

Theodore N'Dede Djeni

Two techniques of milling (milling with wooden mortar and milling with hammer grinder) for the production of millet flours were compared in term of physical, biochemical and nutritional aspects and digestibility of the produced flours. A batch of millet grains with candle (Pennisetum glaucum L. R.BR) was purchased from a local market for flour production, while the flour digestibility tests were achieved with an enzymatic crude extract get from gastric juice of and snails (Archachatina marginata). The different rough flours obtained from both milling techniques showed significant differences (p<0.05) in their granulometric profiles and their biochemical composition. The mortar …


Common Pathophysiologic Mechanisms In Migraine And Epilepsy, Michael A. Rogawski Dec 2007

Common Pathophysiologic Mechanisms In Migraine And Epilepsy, Michael A. Rogawski

Michael A. Rogawski

Migraine and epilepsy are comorbid episodic disorders that have common pathophysiologic mechanisms. Migraine attacks, like epileptic seizures, may be triggered by excessive neocortical cellular excitability; in migraine, however, the hyperexcitability is believed to transition to cortical spreading depression rather than to the hypersynchronous activity that characterizes seizures. Some forms of epilepsy and migraine are known to be channelopathies. Mutations in the same genes can cause either migraine or epilepsy or, in some cases, both. Given the likely commonalities in the underlying cellular and molecular mechanisms, it is not surprising that some antiepileptic drugs, including valproate, topiramate, and gabapentin, are effective …


Discordance In The Paraoxonase (Pon1)-192qr Polymorphism, Rozaida @ Poh Yuen Ying Dec 2007

Discordance In The Paraoxonase (Pon1)-192qr Polymorphism, Rozaida @ Poh Yuen Ying

Rozaida @ Poh Yuen Ying

Paraoxonase (PON1) has been implicated to have a cardioprotective role, due to its physical attachment with high-density lipoprotein. PON1192QR is a variation of the PON1 gene, the R allele being a risk factor for cardiovascular disease. Kinetic studies resulting in a plot of paraoxon versus diazoxon hydrolysis rates may be used to accurately predict PON1192 geno-type. In this study, paraoxonase and diazoxonase activities in plasma were measured spec-trophotometrically using plasma while PCR-based PON1192 genotyping was performed us-ing polymerase chain reaction followed by restriction digestion. The two-substrate assay-derived genotypes were cross-referred with those determined by PCR-based genotyping. When results did not …


Functional Generalized Linear Models With Applications To Neuroimaging, Philip T. Reiss, R. Todd Ogden Dec 2007

Functional Generalized Linear Models With Applications To Neuroimaging, Philip T. Reiss, R. Todd Ogden

Philip T. Reiss

No abstract provided.