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An Analysis Of The Anatomical Projection From The Mzi To The Dmcg Using Hrp Histochemistry: Comparison Between Male And Female Rats, Scott E. Preusen '91
An Analysis Of The Anatomical Projection From The Mzi To The Dmcg Using Hrp Histochemistry: Comparison Between Male And Female Rats, Scott E. Preusen '91
Honors Projects
Anatomical and behavioral studies indicate that the dorsal Midbrain Central Grey (dMCG) and the Ventromedial Nucleus of the hypothalamus (VMH) are the principle brain structures that function in mediating sexual behavior in the female rat. Recently, the medial portion of the Zona Incerta (mZI) has been implicated as an additional brain structure that regulates sexual receptivity (lordosis) in the female rat. When the mZI of the female was destroyed via intracerebral injections with the neurotoxin, ibotenic acid, by Dornan et al. (1991), they reported that lordosis behavior was shown to be attenuated. Presently, little is known about the role of …
Cystic Fibrosis: Cluster Analysis Of Microbiology And Pulmonary Function, Lori Lee M. Larson '91
Cystic Fibrosis: Cluster Analysis Of Microbiology And Pulmonary Function, Lori Lee M. Larson '91
Honors Projects
In an attempt to find a relationship between pulmonary infection and pulmonary function in cystic fibrosis (CF) patients, microbiology data and pulmonary function test (PFT) data for clinic patients' visits were obtained from the University of Minnesota Relational Database. The two files were merged, totaling 12,193 cases, and then analyzed using a quick cluster subroutine of SPSSX on the University of Illinois IBM Mainframe System. QUICK CLUSTER analysis showed a relationship between the virulence of the microorganisms, the amount of growth of the microorganisms, and the pulmonary function test scores of CF patients
The Effects Of Bilateral Injections Of Neuropeptide K Into The Medial Preoptic Area On Male Rat Copulatory Behavior, Peter Malen '91
The Effects Of Bilateral Injections Of Neuropeptide K Into The Medial Preoptic Area On Male Rat Copulatory Behavior, Peter Malen '91
Honors Projects
The first mammalian neuropeptide to be characterized was substance P (sP) , and it is now recognized that sP is a member of a structurally related family of peptides, the tachykinins. Extensive studies have demonstrated. that sP and some related tachykinin peptides play key roles as neurotransmitters and neuromodulators. The synthesis of different members of the tachykinin family is in part due to the modifications' of three sP-encoding preprotachykinin (PPT) mRNA's that are derived from a single sP gene. At least four tachykinin peptides can be synthesized as a result of these differential modifications including sP, neurokinin A, neuropeptide and …
A Morphological And Chemical Study Of The Lichen Genus Hypogymnia In North America North Of Mexico, Melinda Mcfarlin '91
A Morphological And Chemical Study Of The Lichen Genus Hypogymnia In North America North Of Mexico, Melinda Mcfarlin '91
Honors Projects
The lichen genus Hypogymnia is widely distributed throughout the world, in such places as Europe, Asia, Africa, Australia, New Zealand, Japan, and North America. Currently, there are twenty-one recognized species of Hypogymnia in North America, but no comprehensive study of the genus in North America has been published. My study of the genus Hypogymnia was performed on a sample of 784 North American specimens collected from the western United States, southern Canada, the Great Lakes region, and the eastern United States. The morphological characteristics of each lichen specimen were examined. Chemical studies included preliminary spot test screening of the cortex …
The Anatomy Of The Hyoid Region Of Molossus Molossus And Its Implication In Systematics, Natawadee Prasertphon '91
The Anatomy Of The Hyoid Region Of Molossus Molossus And Its Implication In Systematics, Natawadee Prasertphon '91
Honors Projects
The hyoid musculature and hyoid apparatus of a bat, Molossus molossus (Chiroptera: Molossidae) are dissected and described. A comparison is made with the hyoid structures of bats of the genera Rhinopoma, Emballonura, Nycteris, Megaderma, Rhinolophus, Pteronotus, Phyllostomus, and Eptesicus, which were previously described by my sponsor Gri'tfiths and associates. In Molossus, the geniohyoid and sternohyoid insertions, as well as the hyoglossus origin, have lifted off the basihyal bone and jointly retain a direct attachment to the basihyal via a small tendon. The hyoglossus is split into three distinct bellies: the most superficial originates from the basihyal raphe, the second originates …
Intracerebral Injections Of Substance P Fragments (5-11) And (1-7) Into The Dorsal Midbrain Central Gray Have No Effects On Lordosis Behavior In The Female Rat, Jodi K. Block '91
Intracerebral Injections Of Substance P Fragments (5-11) And (1-7) Into The Dorsal Midbrain Central Gray Have No Effects On Lordosis Behavior In The Female Rat, Jodi K. Block '91
Honors Projects
Substance P (sP), a neuroactive peptide, has now been implicated in a wide range of behaviors. One in particular is female rat sexual behavior. Recently, it has been shown that bilateral injections of sP into the dorsal midbrain central gray (dMCG) of estrogen-primed female rats facilitate sexual behavior (lordosis). Uncertainty remains, however, concerning the mode of action of synaptically released sP. Indeed, most of our understanding of sP activity has revealed that its full structural sequence is not needed for biological activity. This has led to speculation that sP may be processed into one or more types of fragments before …