Publications by authors named "Sawamura S"

We administered general anesthesia for an emergency abdominal surgery due to duodenal ulcer hemorrhage. The patient was in postoperative state after femoral supracondylar fracture, in pre-shock state, of old age (97 y-o), with severe anemia, and hypoproteinemia, and complicated with a giant abdominal aneurysm and mild aortic regurgitation. Before the operation, the patient was transferred to ICU and had intravascular volume replaced (infused with blood 600 ml, crystalloid fluid 2000 ml, colloid fluid 500 ml) and received stomach lavage.

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Expression of protein kinase C (PKC) subspecies was studied in various human leukemia-lymphoma cell lines. The PKC in most cell lines examined was resolved into two major fractions corresponding to type II (beta-sequence) and type III (alpha-sequence) PKC of the rat brain. The amounts of these two subspecies greatly varied among the cell lines.

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The growth inhibitory activity in conditioned medium of African green monkey kidney epithelial (BSC-1) cells that has been shown to arise, at least in part, from transforming growth factor beta 2 (TGF-beta 2) [Hanks, S. K., Armour, R.

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The role of intestinal flora in the production of anorexigenic substance was investigated. Proteus mirabilis (P. mirabilis) and Escherichia coli (E.

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Protein kinase C in the developing rat brain was investigated by a biochemical assay and by light-microscopic immunocytochemistry. The protein kinase was resolved on hydroxyapatite column chromatography into 3 fractions, designated types I, II, and III. Type I, with structure encoded by a gamma-sequence, was not detected early postnatally, maintained a low level of activity during the first week, which increased gradually, and reached its maximum around postnatal day 28.

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The results of quantitative and qualitative analyses of tonsillar bacterial flora in chronic tonsillitis patients and healthy subjects are reported. Based on these results, the pathogenesis of tonsillar infections is discussed from the standpoint of bacterial ecology.

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The biologic response to fibrillar collagen (collagen) and fibrillar collagen plus heparin (collagen/heparin) implants have been compared in the rat subcutaneous and guinea pig dermal wound models. The reconstituted bovine dermal collagen implants were injected subcutaneously in rats at concentrations ranging from 18 to 30 mg/ml and in volumes ranging from 0.5 to 1.

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Pepsin-solubilized bovine dermal collagen was reconstituted in 0.02 M sodium phosphate (pH 7.2), concentrated to 30-40 mg/ml, and adjusted to physiological ionic strength by addition of sodium chloride.

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Reduction of a commercially available, pepsin-solubilized, bovine dermal collagen (Vitrogen 100) with sodium [3H]borohydride provided radiolabeled collagen preparations with specific activities ranging from 7.1-12.0 muCi/mg collagen.

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A high-performance liquid chromatographic (HPLC) method for simultaneous determination of 7-dehydrocholesterol (7-DHC), vitamin D3 and 25-hydroxyvitamin D3 (25-OH-D3) in tissues of fishes was established, and using this method the tissue distribution of the sterols in lamprey (Entosphenus japonicus), great blue shark (Prionace glauca), skipjack (Katsuwonus pelamis) and albacore (Thunnus alalunga) was investigated. The results are summarized in the following: Although the alimentary canal, gall bladder and roe of lamprey and the alimentary canal of great blue shark contained comparatively high levels of 7-DHC (higher than 2,000 ng/wet tissue g), the other tissues of lamprey and great blue shark and all tissues of skipjack and albacore contained only low levels of 7-DHC (lower than 1,000 ng/g). There was no significant correlation between the levels of 7-DHC and vitamin D3.

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The human immune response to bovine dermal collagen was characterized through histologic, serologic, and immunoblotting methods. Collagen-sensitive patients were identified by hypersensitivity to intradermal exposure to ZYDERM Collagen Implant--a pepsin-solubilized, reconstituted, bovine dermal collagen. Biopsies of test sites in the forearm were obtained from several collagen-sensitive patients.

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The biologic response to injectable, glutaraldehyde cross-linked, fibrillar collagen implants in the rat subcutaneous model was shown to be a function of the concentration of glutaraldehyde used for cross-linking. The collagen was prepared from bovine hide by pepsin solubilization and reconstituted as a fibrillar suspension of 35 mg collagen/mL. Fibrillar collagen implants cross-linked with glutaraldehyde concentrations equal to or less than 0.

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Pepsin-solubilized bovine corium collagen was purified, reconstituted, and treated with various levels of glutaraldehyde. Treatment of suspensions of fibrillar collagen with low concentrations of glutaraldehyde appeared to have little effect on the gross morphology of fibrils, as judged by electron microscopy, but did have a significant impact on their physicochemical stability. Fibrillar collagen treated with glutaraldehyde at a concentration equal to or greater than 0.

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The result documenting the disappearance of obligate anaerobic bacteria as the predominant intestinal organisms with the onset of septicemia from S. marcescens calls for exploration into the clinical significance of anaerobic bacteria in the intestine in relationships between gut flora and host. The finding that no significant difference could be seen between the rates of septicemia under protective isolation and in uncontrolled environments is indicative of the fact that the disease most likely originated as an infection of endogenous nature.

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Pepsin-solubilized bovine corium collagen was reconstituted by rapid neutralization in dilute phosphate buffer at temperatures ranging from 10 degrees C-25 degrees C. The resultant fibrils were harvested by centrifugation and resuspended in physiological buffer to a constant protein concentration. The optical density of such suspensions, measured at 410 nm in a 1 mm path length cuvette, exhibited a strong inverse correlation with temperature of fibrillogenesis.

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No significant difference was seen in the incidence of infections between subjects receiving complete, selective and no decontamination aimed at the intestinal microflora in studies evaluating the preventative potential against endogenous infections in the compromised host maintained under protective isolation. This finding is reported together with a report of Serratia marcescens septicemia in a patient with leukemia who was given antibiotics systemically and kept under protective isolation. The establishment of opportunistic infections in relation to these results is discussed in terms of the biological phenomena of the interaction between the intestinal flora and the host, and between the species comprising the intestinal flora.

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In order to elucidate the ecological role of bacteriophages in the human intestine, we analysed the numbers of coliphages and of coliphage strains present in faecal samples collected from healthy individuals and from patients with certain intestinal diseases. The isolated phages were grouped according to their serological properties. The samples with low phage titres, observed in both healthy subjects and patients, contained mainly temperate phages (many were related to phi 80 and lambda), and those with higher titres, observed in patients, contained virulent phages.

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The use of laminar airflow rooms and a life island unit for comprised patients was evaluated. Six patients spent a total of 170 days in the laminar airflow rooms and 112 days in the life island unit, and none acquired any exogenous infection. Patients were febrile for 7 out of 170 days (4.

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The present results of investigations performed on fresh fecal samples from a healthy adult and subjects with acute leukemia cultured bacteriologically using both aerobic and anaerobic techniques have led to the following conclusions. 1) In studies on the intestinal bacterial flora of the subjects examined, obligate anaerobic bacteria rather than facultative anaerobes accounted for more than 99% of the microorganisms. 2) Although some qualitative differences seem to exist between fecal bacterial flora components of the normal individual and leukemia patients examined, further investigations considering various factors controlling and influencing the composition of intestinal bacterial flora are needed to evaluate the results obtained.

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Bacteriological, hematological and immunological data were evaluated in patients with septicemia in a protected isolation unit. Patients were randomly given antimicrobial prophylaxis. Three out of four episodes of septicemia occurred 2 to 4 days after discontinuing oral nonabsorbed antibiotics at the stage of leukopenia and immunodeficiency induced by chemotherapy.

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Since 1972 the Hyogo Rehabilitation Centre has been developing a variable-resistance-type pneumatic control device, the HRC Adjustable Pneumatic Swing-Phase Control Knee. Successful field tests have been carried out on 20 cases with Model IV since 1973 with only a limited number of mechanical troubles. This paper introduces the HRC adjustable pneumatic swing-phase control knee with follow-up studies.

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