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Biomedical subjects

B G Moore

Publications and source records attributed to B G Moore.

12 recordsLinked to original sources
PubMed1996

Immunohistochemical evaluations of ultrashort-segment Hirschsprung's disease. Report of three cases.

PURPOSE: Unlike classic Hirschsprung's disease, short-segment and ultrashort-segment varieties are usually found to be latent and milder. Ultrashort-segment Hirschsprung's disease may present as intractable chronic constipation in children over one year of age, adolescents, and adults. Anorectal myectomy has been shown in many instances to provide effective long-term treatment for certain patients with ultrashort-segment Hirschsprung's disease. Histologically, the affected segment in Hirschsprung's disease has been shown to have increased cholinergic nerves, lack of nitric oxide synthase-containing neuronal elements, and show moderate to severe loss of myenteric neurons. METHODS: Here, we report three cases that showed clinical and manometric evidence of ultrashort-segment Hirschsprung's disease. Two of the three patients responded well to myectomy. RESULTS: Detailed histologic and immunohistochemical evaluation of the internal anal sphincter and a comparison with three normal controls revealed absence of nitric oxide synthase-containing neurons in both cases that responded well to surgery and continued presence of these neurons in the patient who did not respond. A review of the current literature on various treatment modalities is included. CONCLUSIONS: Anorectal myectomy provides long-term relief of this chronic problem in a subgroup of patients with ultrashort-segment Hirschsprung's disease who lack nitrinergic neurons at the internal anal sphincter.

Adolescent↗
PubMed1992

Reminiscing therapy: a CNS intervention.

The role of the clinical nurse specialist (CNS) has expanded over the years. The CNS is prepared through education and training with group process to initiate and implement a reminiscing group for the elderly. Life review and reminiscing are dynamic occurrences in which the individual is an active agent. The implementation of the program with documentation can be kept simple. A nondirective approach may be used to allow the participants to form the group in the manner that is most comfortable for them. By using reminiscing techniques, the CNS can enhance the quality of the elderly's later years, as well as facilitate their last developmental task.

Aged↗
PubMed1988

Subchondral cyst-like lesions in the distal portion of the radius of four horses.

Four horses with subchondral cyst-like lesions in the medial radial facet of the distal portion of the radius were examined. Joint effusion and signs of pain from flexion of the antebrachiocarpal joint were not observed, but lameness was observed in 3 of the 4 horses. Regional nerve blocks and intra-articular anesthesia were used to localize the lesions, and conservative treatment resulted in soundness for performance.

Animals↗
PubMed1979

Critical test evaluation of butamisole against gastrointestinal parasites of horses and ponies.

A critical test was performed to evaluate the anthelmintic properties of an injectable butamisole formulation and to compare the efficiency with that of a commercially available piperazine-thiabendazole anthelmintic. The test was done in 10 horses and 15 ponies with naturally acquired parasitic infections. Butamisole was administered at the dose level of 2.5 or 3.75 mg/kg of body weight by either subcutaneous or deep intramuscular injection. Given at the dose level of 2.5 mg/kg, butamisole was highly effective (99%) against Strongylus vulgaris and moderately effective (49%) against Parascaris equorum. At the 3.75 mg/kg dose rate, butamisole was highly effective against both S vulgaris (97%) and P equorum (94%). Butamisole had limited efficacy against other parasite species. Signs of toxicosis, long-term swelling of the injection sites, or tissue damage were not seen after injection.

Animals↗
PubMed1965

Benzo[a]pyrene uptake by bacteria and yeast.

Moore, B. G. (Oak Ridge National Laboratory, Oak Ridge, Tenn.), and Arthur P. Harrison, Jr. Benzo[a]pyrene uptake by bacteria and yeast. J. Bacteriol. 90:989-1000. 1965.-Various Enterobacteriaceae and yeast incubated in a medium containing 25 mug/ml of H(3)-benzo[a]pyrene (30% serum in the medium dissolves the hydrocarbon) retain radioactivity after washings with fresh 30% serum-medium. This radioactivity is defined as bound and represents intact benzo[a]pyrene. Factors relating to the binding of benzo[a]pyrene (benzo[a]pyrene uptake) have been studied in detail with Escherichia coli Ma, a triple auxotroph requiring l-leucine, uracil, and thymine. In defined medium, benzo[a]pyrene uptake by normally growing cells is 10(-10) to 2 x 10(-10) mug per cell. Uptake is the same in suspensions lacking leucine and containing chloramphenicol where there is neither measurable protein synthesis nor cell division. Uptake is diminished, but not eliminated, by autoclaving the cells; thus, some uptake occurs in the absence of enzymatic activity. Uptake is enhanced by heat shock, thymine deprivation, uracil deprivation, and exposure to penicillin. Thus, uptake is affected by the physiological state of the cells. Either the cells play a direct (enzymatic) role in uptake, or they affect uptake indirectly by increasing or altering the benzo[a]pyrene-binding structure. Physical fractionation of cells demonstrates that this structure is associated with the cell wall-membrane complex. All but 1% of the bound radioactivity is extracted with ethyl alcohol-ether. This residual radioactivity is defined as fixed, and may be associated with cell protein. The extracted radioactivity is identified as benzo[a]pyrene. Very little hydrocarbon is metabolized. Adverse photodynamic effects, increase in mutation, and dimunition in bacteriophage replication (in whole cells) have not been observed in the benzo[a]pyrene cultures.

Benzopyrenes↗