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Articles 151 - 167 of 167
Full-Text Articles in Life Sciences
Volume 1, Number 3 (2003), Ut Institute Of Agriculture
Volume 1, Number 3 (2003), Ut Institute Of Agriculture
Tennessee Land, Life and Science Magazine
Issue Highlights:
- Booming Biotechnology
- Lessons in Leadership
- New Options for Producers
- Entering an Exciting New Era
Volume 1, Number 2 (2003), Ut Institute Of Agriculture
Volume 1, Number 2 (2003), Ut Institute Of Agriculture
Tennessee Land, Life and Science Magazine
Issue Highlights:
- Insects as Teaching Tools
- Helping Children Succeed
- Honors Student Faces Bright Future
- Reinventing the Family Farm
Volume 1, Number 1 (2003), Ut Institute Of Agriculture
Volume 1, Number 1 (2003), Ut Institute Of Agriculture
Tennessee Land, Life and Science Magazine
Issue Highlights:
- Adding Value to Dogwoods
- A Building to Advance Science
- Teaching Lessons in Life
- Towards a Brighter Forest Future
Cutting Edge: Persistent Viral Infection Prevents Tolerance Induction And Escapes Immune Control Following Cd28/Cd40 Blockade-Based Regimen, Thandi M. Onami, M. A. Williams, A. B. Adams, M. M. Durham, T. C. Pearson, R. Ahmed, C. P. Larsen
Cutting Edge: Persistent Viral Infection Prevents Tolerance Induction And Escapes Immune Control Following Cd28/Cd40 Blockade-Based Regimen, Thandi M. Onami, M. A. Williams, A. B. Adams, M. M. Durham, T. C. Pearson, R. Ahmed, C. P. Larsen
Microbiology Publications and Other Works
A continuing concern with CD28 and/or CD40 blockade-based strategies to induce tolerance and mixed chimerism is their potential to disrupt protective immunity to preexisting infections. In this report, we find that preexisting persistent infection with lymphocytic choriomeningitis virus (LCMV) clone 13 prevents the induction of tolerance, mixed chimerism, and donor-reactive T cell deletion. Mice continue to be refractory to tolerance induction even after viremia has been resolved and virus is present only at very low levels in peripheral tissues. Conversely, we find that the full tolerance regimen, or costimulation blockade alone, specifically inhibits already ongoing antiviral immune responses, leading to …
Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Faculty Publications and Other Works -- Large Animal Clinical Sciences
Our objective was to determine if prepubertal rate of body weight (BW) gain, independent of diet, was related to mammary development of dairy heifers. Data from two studies recently conducted at Michigan State University were used to identify factors, within a dietary treatment group, that would account for variation in first lactation milk production or amount of mammary parenchymal DNA at the time of puberty. Factors analyzed for variation in milk production during first lactation were: postpartum BW, prepubertal BW gain, gestational BW gain, postpartum BW gain, body condition score (BCS) at breeding, and BCS at calving. Factors analyzed for …
Molecular Cloning And Characterization Of A Novel Mouse Macrophage C-Type Lectin, Mmgl2, Which Has A Distinct Carbohydrate Specificity From Mmgl1, Thandi M. Onami, M. Tsuiji, M. Fujimori, Y. Ohashi, N. Higashi, S. M. Hendrick, T. Irimura
Molecular Cloning And Characterization Of A Novel Mouse Macrophage C-Type Lectin, Mmgl2, Which Has A Distinct Carbohydrate Specificity From Mmgl1, Thandi M. Onami, M. Tsuiji, M. Fujimori, Y. Ohashi, N. Higashi, S. M. Hendrick, T. Irimura
Microbiology Publications and Other Works
A novel mouse macrophage galactose-type C-type lectin 2 (mMGL2) was identified by BLAST analysis of expressed sequence tags. The sequence of mMGL2 is highly homologous to the mMGL, which should now be called mMGL1. The open reading frame of mMGL2 contains a sequence corresponding to a type II transmembrane protein with 332 amino acids having a single extracellular C-type lectin domain. The 3'-untranslated region included long terminal repeats of mouse early transposon. The Mgl2 gene was cloned from a 129/SvJ mouse genomic library and sequenced. The gene spans 7,136 base pairs and consists of 10 exons, which is similar to …
Generation Of Mice Deficient For Macrophage Galactose- And N-Acetylgalactosamine-Specific Lectin: Limited Role In Lymphoid And Erythroid Homeostasis And Evidence For Multiple Lectins, Thandi M. Onami, M. Y. Lin, D. M. Page, S. A. Reynolds, C. D. Katayama, J. D. Marth, T. Irimura, A. Varki, N. Varki, S. M. Hedrick
Generation Of Mice Deficient For Macrophage Galactose- And N-Acetylgalactosamine-Specific Lectin: Limited Role In Lymphoid And Erythroid Homeostasis And Evidence For Multiple Lectins, Thandi M. Onami, M. Y. Lin, D. M. Page, S. A. Reynolds, C. D. Katayama, J. D. Marth, T. Irimura, A. Varki, N. Varki, S. M. Hedrick
Microbiology Publications and Other Works
Macrophage receptors function in pattern recognition for the induction of innate immunity, in cellular communication to mediate the regulation of adaptive immune responses, and in the clearance of some glycosylated cells or glycoproteins from the circulation. They also function in homeostasis by initiating the engulfment of apoptotic cells. Evidence has suggested that macrophage receptors function to recognize cells that are destined for programmed cell death but not yet overtly apoptotic. We have examined the function of a macrophage receptor specific for unsialylated glycoproteins, known as the mouse macrophage galactose- and N-acetylgalactosamine-specific lectin (mMGL) (Ii et al., J. Biol. Chem. 265:11295-11298, …
Dynamic Regulation Of T Cell Immunity By Cd43, Thandi M. Onami, L. E. Harrington, M. A. Williams, M. Galvan, C. P. Larsen, T. C. Pearson, N. Manjunath, L. G. Baum, B. D. Pearce, R. Ahmed
Dynamic Regulation Of T Cell Immunity By Cd43, Thandi M. Onami, L. E. Harrington, M. A. Williams, M. Galvan, C. P. Larsen, T. C. Pearson, N. Manjunath, L. G. Baum, B. D. Pearce, R. Ahmed
Microbiology Publications and Other Works
During a viral response, Ag-specific effector T cells show dramatically increased binding by the mAb 1B11 and the lectin peanut agglutinin (PNA). We investigated the contribution of CD43 expression to 1B11 and PNA binding as well as its role in generation and maintenance of a CD8 T cell response. Analysis of CD43(-/-) mice revealed no increased 1B11 binding and reduced PNA binding on virus-specific CD8 T cells from -/- mice compared with +/+ mice. Furthermore, we examined the role of CD43 in the kinetics of an immune response. We show that CD43 expression modestly effects generation of a primary virus-specific …
Effect Of Dietary Protein On Prepubertal Mammary Development In Rapidly Growing Dairy Heifers, Brian K. Whitlock, M J. Vandehaar, L F. Silva, H A. Tucker
Effect Of Dietary Protein On Prepubertal Mammary Development In Rapidly Growing Dairy Heifers, Brian K. Whitlock, M J. Vandehaar, L F. Silva, H A. Tucker
Faculty Publications and Other Works -- Large Animal Clinical Sciences
The objective was to determine whether increased dietary protein would enhance mammary development in prepubertal heifers fed for rapid body growth (1.2 kg/d). Fifty-four Holstein heifers (weighing approximately 134 kg) were assigned to one of three treatments. Heifers were fed a total mixed ration with metabolizable energy at 2.85 Mcal/kg and metabolizable protein at low, standard, or high concentrations (37, 41, or 44 g/Mcal of metabolizable energy, respectively) from 3.5 mo of age until slaughter at approximately 46 d after puberty. Heifers fed low, standard, and high protein gained 1130, 1170, and 1180 g/d, respectively. Dietary protein did not affect …
Variability Of Placental Expression Of Cyclin E Low Molecular Weight Variants, A Bukovsky, Maria Cekanova Ms, Rndr, Phd, Mr Caudle, J Wimalasena, Js Foster, Ja Keenan, Rf Elder
Variability Of Placental Expression Of Cyclin E Low Molecular Weight Variants, A Bukovsky, Maria Cekanova Ms, Rndr, Phd, Mr Caudle, J Wimalasena, Js Foster, Ja Keenan, Rf Elder
Faculty Publications and Other Works -- Biochemistry, Cellular and Molecular Biology
No abstract provided.
Adaptive Functions Of The Corpus Striatum: The Past And Future Of The R-Complex, Neil Greenberg
Adaptive Functions Of The Corpus Striatum: The Past And Future Of The R-Complex, Neil Greenberg
Faculty Publications and Other Works -- Ecology and Evolutionary Biology
The basal ganglia is emerging from the shadow cast by the most conspicuous clinical expression of its dysfunction: motor disorders.What is revealed is the nexus of a widely distributed system which functions in integrating action with cognition, motivation, and affect. Prominent among non-motor functions are striatal involvement in building up of sequences of behavior into meaningful, goal-directed patterns and repertoires and the selection of appropriate learned or innate sequences in concert with their possible predictive control. Further, striatum seems involved in declarative and strategic memory (involving intentional recollection and the management of retrieved memories, respectively). Findings from reptile experiments indicate …
Ethological Aspects Of Stress In A Model Lizard, Anolis Carolinensis, Neil Greenberg
Ethological Aspects Of Stress In A Model Lizard, Anolis Carolinensis, Neil Greenberg
Faculty Publications and Other Works -- Ecology and Evolutionary Biology
Research on the stress response in reptiles can provide a useful comparative perspective for understanding how the constituent elements of the response can be put into service of diverse behavioral adaptations. A summary of the neural and endocrine causes and consequences of specific behavioral patterns seen in the small diurnal lizard, Anolis carolinensis, has provided a model for the exploration of the dynamics of autonomic and neurohormonal contributions to adaptive behavior.
In this species, changes in body color provide indices of the flux of circulating stress relevant hormones, and are seen in situations from spontaneous exploration through agonistic behavior. Furthermore, …
The Saurian Psyche Revisted: Lizards In Research, Neil Greenberg
The Saurian Psyche Revisted: Lizards In Research, Neil Greenberg
Faculty Publications and Other Works -- Ecology and Evolutionary Biology
This essay is intended to guide researchers interested in lizards as prospective experimental models to identify an appropriate species for their research needs and to care for lizards in a manner that will not compromise their utility. Coupled with these is a concern for critical thinking about the ethical dimension of lizard research, one guide for which is to consider the intersection of human needs and lizard needs.
Before proceeding further, several arbitrary premises must be made clear:
1. While wholly deserving of study because of their intrinsic interest, I will assume that the lizard research to be undertaken is …
Art, Science, Areté, Neil Greenberg
Art, Science, Areté, Neil Greenberg
Faculty Publications and Other Works -- Ecology and Evolutionary Biology
No abstract provided.
The Effects Of Augmented Attentional Focus On The Performance With Practice Of A Closed Perceptual-Motor Task For Individuals Who Differ In Task Mastery, John Allen Richards
The Effects Of Augmented Attentional Focus On The Performance With Practice Of A Closed Perceptual-Motor Task For Individuals Who Differ In Task Mastery, John Allen Richards
Doctoral Dissertations
The purpose of this study was to investigate the effects of augmented attentional focus on the performance with practice, of a closed perceptual-motor task for individuals who differ in task mastery. Sixty-four male volunteers were assigned to either the beginning or advanced task mastery group (n = 32) based on bowling averages (≤ 130, ≥ 150 respectively). Each subject in the task mastery groups was randomly assigned to one of four augmented focus of attention conditions, i.e., focus on: (a) environmental results of the movement that was performed (KR); (b) the movement that was performed (KP); (c) self via presence …
Ethological Considerations In The Experimental Study Of Lizard Behavior, Neil Greenberg
Ethological Considerations In The Experimental Study Of Lizard Behavior, Neil Greenberg
Faculty Publications and Other Works -- Ecology and Evolutionary Biology
The importance of an ethological approach to the experimental study of an unfamiliar species is described and several of its problems discussed. The selection of units of behavior is a crucial first step in the development of a behavior inventory. The correlation of a behavioral unit with a particular context is necessary to ascribe function to that to that unit and to develop an ethogram. Methods of studying lizards under controlled conditions are described and discussed. Constraints on behavior that must be considered in an experimental study include the microclimate and its thermal qualities, food and water, shelter utilization, and …
X-Ray-Induced Specific-Locus Mutation Rates In Newborn And Young Mice, Paul Bruce Selby
X-Ray-Induced Specific-Locus Mutation Rates In Newborn And Young Mice, Paul Bruce Selby
Doctoral Dissertations
The specific-locus mutation frequency resulting from 300 R of acute X irradiation has been determined for the germ cells present in male mice at 0, 2, 4, 6, 8, 10, 14, 21, 28, and 35 days of age and also for female mice at 0 days of age, Sample size was much larger for the males irradiated on day 0 than for other age groups but in all groups it was large enough to insure that an extremely high rate would be noticed. At 35 days of age the testis is histologically similar to that of the adult. It was …