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Investigation Of Complex Formation By Oligomers Of Cytosine And Guanosine, Steven Roberts Davis Oct 1987

Investigation Of Complex Formation By Oligomers Of Cytosine And Guanosine, Steven Roberts Davis

Chemistry & Biochemistry Theses & Dissertations

Duplex formation between oligo(C:G) n where n=3 to 4 was shown not to occur under conditions favorable for duplex formation between poly G and poly C. Instead, a stable guano sine self-structure was found to form which a Tm of 50°C for (Gp)3 and 80°C for (Gp)4 at strand concentrations of 10-5M in 1M NaCl. Neither a duplex nor a self-structure formed in the absence of salt.

Oligomers of guanosine and cytosine were obtained by basic hydrolysis and separated according to chain length using DEAE Sephadex column chromatography. Separation of cytosine oligomers with chain lengths …


Synthesis And Characterization Of N-Alkyl-Adenosine-5'-Diphosphates, Han-Ping Huang Oct 1987

Synthesis And Characterization Of N-Alkyl-Adenosine-5'-Diphosphates, Han-Ping Huang

Chemistry & Biochemistry Theses & Dissertations

n-Alkylphosphates and adenosine derivatives have been observed to be competitive inhibitors of coenzyme molecules in many NAD+ requiring enzymes. In earlier studies, adenosine derivatives such as AMP, ADP and ADP-ribose were found to be coenzyme competitive inhibitors of the Lactate Dehydrogenase catalyzed reaction. However, n-alkylphosphates, to the contrary, + were found to be noncompetitive inhibitors of NAD+.

Furthermore, it was observed previously in Dr. Yuan's laboratory that the effect of n-octylphosphate on the LDH catalyzed reaction was changed from noncompetitive to competitive in the presence of low concentration of AMP. Rossmann et al. reported that the binding …


Tardive Dyskinesia: A Prevalence Study In An Outpatient Population, Virginia J. Ravizza Oct 1987

Tardive Dyskinesia: A Prevalence Study In An Outpatient Population, Virginia J. Ravizza

Community & Environmental Health Theses & Dissertations

The purpose of this prevalence study was to assess the occurrence of tardive dyskinesia among a chronically mentally ill sample of a suburban mental health clinic. The participants in this study were selected from clients of a suburban mental health clinic who agreed to participate in this prevalence study. There were 45 participants--17 males and 28 females.

The Abnormal Involuntary Movement Scale (AIMS) was selected as the instrument to measure the abnormal involuntary movements exhibited by the participants of the study on the day of testing. The testing occurred during a specific time period, June 8, 1987 to July 2, …