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Biomedical subjects

H Shishido

Publications and source records attributed to H Shishido.

At least 55 records · Page 3Linked to original sources

GM-CSF and eosinophil chemotactic factors in an acute lymphoblastic leukemia patient with eosinophilia.

We describe a patient with common acute lymphoblastic leukemia associated with blood and cerebrospinal fluid (CSF) eosinophilia. Serum obtained at onset and conditioned medium prepared from T cells obtained at remission stimulated with interleukin-2 contained eosinophil colony stimulating activity (Eo-CSA), which was confirmed to be predominantly GM-CSF. Leukemic cell conditioned medium and serum obtained at remission contained no Eo-CSA. The CSF contained increased eosinophil chemotactic activity, however, this factor was not identified.

Adult↗

[Amylase-producing plasma cell dyscrasia. Genomic analysis in a case of intramuscular tumor formation and a review of the literature].

We describe a 53-year-old male patient with multiple myeloma (IgA, kappa) who showed massive intramuscular tumors and hyperamylasemia of the salivary (S) type 10 months after initial diagnosis. Suspension culture of the abnormal plasma cells in the pleural fluid showed the production of S-amylase, which was confirmed by the expression of S-amylase mRNA comigrating with salivary gland mRNA. Cytogenetic analysis of the cells showed common abnormalities 1p+q-and 8q+. They expressed IL-6 mRNA, but not c-myc mRNA. Neither structural abnormality nor amplification was detected in the alleles of S amylase, and c-myc using Southern blot analysis. All of the eight patients with plasma cell dyscrasia with hyperamylasemia reported so far (including the present one) are Japanese, and showed S-type hyperamylasemia and extramedullary tumor formation at initial diagnosis or during the course of the disease. All of the four patients in whom cytogenetic analysis was performed had structural abnormalities of chromosome 1, on which the S-amylase gene is known to be located, although the break point were variable.

Amylases↗

Penetration of cefpirome into sputum in chronic respiratory infections: comparison of administration of 0.5 g and 1.0 g in the same patient.

This study evaluated the sputum penetration of cefpirome following slow intravenous infusion of 0.5 and 1.0 g using a comparative cross-over design to reduce variability. Five patients with chronic respiratory tract infections were randomized to receive either 0.5 g followed by 1.0 g, or by 1.0 g followed by 0.5 g cefpirome, by slow intravenous infusion over 1 h, with a 24-h wash-out period between each treatment. With the exception of one patient, sputum concentration correlated well with plasma concentration. Higher sputum levels of cefpirome were achieved following the higher dose.

Adult↗

[Clinical features of intestinal tuberculosis].

We had tuberculosis infection cases of gastrointestinal tract diagnosed histopathologically during January 1980 to December 1991 in Tokyo National Chest Hospital. There were 12 cases (male 8, female 4) from 24 y.o. to 88 y.o. (mean 50 y.o.). We got histopathological specimen by operation (6 cases), biopsy (4), and section (2). Pulmonary tuberculosis was complicated in 8 cases, 7 cases had cavity formation and another case was miliary tuberculosis. Distribution of tuberculous lesion was colon (7 cases), small intestines (5), cecum (2), rectum (1) and esophagus (1). First symptom was mainly abdominal symptom such as abdominal pain and diarrhea. There were a perforative peritonitis and a intestinal obstruction during chemotherapy. Three died cases complicated low albuminemia. We suppose that serum albumin is one of the useful marker of patient's prognosis.

Adult↗

Evaluation of therapeutically induced hypertension in patients with delayed cerebral vasospasm by xenon-enhanced computed tomography.

Serial cerebral blood flow (CBF) measurements were made with stable xenon-enhanced computed tomography in 20 patients with angiographically confirmed ruptured intracranial aneurysms, before and during induced hypertension with continuous infusion of dopamine. All patients showed angiographic vasospasm during their course. Twelve patients without symptomatic vasospasm (Group 1) had the lowest hemispheric CBF on the craniotomy side of 31.6 +/- 6.8 ml/100 gm/min on days 4-9 (control value, 40.1 +/- 2.0 ml/100 gm/min), while the other eight patients with symptomatic vasospasm (Group 2) had the lowest hemispheric CBF on the craniotomy side of 25.0 +/- 7.6 ml/100 gm/min on days 10-14. The critical hemispheric CBF inducing neurological deficits was about 20 ml/100 gm/min in Group 2. Dysautoregulation was usually present in Groups 1 and 2, but therapeutically induced hypertension could reverse the delayed neurological deficits, if begun early at the stage of delayed vasospasm.

Adult↗

Comparative effects of G-CSF, GM-CSF and IL-3 on cytosine arabinoside- and daunorubicin-mediated cytotoxicity of acute myeloid leukemia cells and normal myeloid progenitors.

We carried out an in vitro study on the combined effects of three CSF (G-CSF, GM-CSF and IL-3) plus the cycle-specific chemotherapeutic drugs [cytosine arabinoside (Ara-C) and daunorubicin (DNR)] on the proliferation and cytotoxicity of blasts and clonogenic cells (CFU-AML) in the AML-193 cell line, in AML patients and in normal bone marrow CFU-GM. The number of surviving blasts and/or DNA synthesis in blasts treated with CSF plus Ara-C or DNR was greater than those treated without CSF in the AML-193 cell line, and in some AML patients. On the other hand, the Ara-C- and DNR-mediated cytotoxicity of CFU-AML was not abrogated by CSF in any instance, but rather, it was significantly enhanced by all the CSF in the majority of instances. Although the enhancement was clearer when Ara-C was used, compared with DNR, there were no significant differences among the enhancing effects of the CSF. Under the same culture conditions as those for CFU-AML, all of the CSF significantly enhanced the Ara-C-mediated cytotoxicity of day 7 normal CFU-GM, although to a lesser extent than in CFU-AML. However, none of the CSF significantly affected the Ara-C-mediated cytotoxicity of day 14 normal CFU-GM or the DNR-mediated cytotoxicity of day 7 or day 14 normal CFU-GM. These results suggest that in the selection of a strategy entailing combined use of cycle-specific drugs plus CSF to increase the antileukemic effectiveness of chemotherapy in AML, G-CSF is preferable to GM-CSF or IL-3, since it has fewer potential clinical side effects, and that, furthermore, DNR may be as useful as Ara-C.

Acute Disease↗

[A case of inflammatory bronchial polyp associated with pulmonary and bronchial tuberculosis].

A 67-year-old man was admitted to our hospital because of cough and sputum. Chest X-ray revealed cavity and consolidation in the right upper lobe. Microscopical examination of stained specimens of sputum disclosed acid-fast bacilli (Mycobacterium tuberculosis). Cough and sputum resolved and cultures of sputum did not yield M. tuberculosis a month after administration of antituberculosis agents. However, a mass shadow in the right upper lobe was found 3 months later. Bronchofiberscopy revealed a polyp with a stalk at the orifice of right upper bronchus, which was elastic, soft in consistency, smooth surfaced, and movable. The pathological findings of the polyp showed non-specific inflammatory granulation which suggested to be inflammatory bronchial polyp. It was appeared in the healing process of bronchial tuberculosis.

Aged↗

[MRSA respiratory tract infection].

Sputum isolates of MRSA have been on the increase, recently. Preventive measures against MRSA nosocomial infections have become important in Japanese hospitals. Clinical study was performed on 29 patients from whom MRSA was isolated more than 10(7) cfu/ml using the quantitative sputum culture method. All had a history of admission, therefore nosocomial infections caused by MRSA could very often occur. MRSA was determined as a causative organism in 3 on the basis of symptoms, laboratory data, chest X-rays, and effect of antimicrobial agents. These three patients improved by a single or combined administration of minocycline, arbekacin and/or fosfomycin. In 15 patients, MRSA was frequently isolated, but was thought to be colonized. In 3 patients, MRSA was not isolated without administration of antimicrobial agents thereafter. It was supposed that most of MRSA isolates from sputum were not the causative organism of the respiratory tract infection.

Anti-Bacterial Agents↗

[A case of Hand-Schüller-Christian disease with pulmonary fibrosis].

A 42-year-old man was admitted with dyspnea and abnormal shadows on chest roentgenogram, which showed bilateral reticulonodular shadows, multiple pulmonary cysts, and pleural effusion. A month after admission, he developed severe respiratory failure and chest X-ray revealed exacerbation of reticulonodular shadows. Steroid pulse therapy improved the symptoms and chest X-ray. He had atrophy of the mandible. Bone scintigram revealed multiple hot lesions. Bone biopsy of the right tibia showed lipogranuloma, and the diagnosis of Hand-Schüller-Christian disease (HSC) was made. The percentage of OKT6-positive cells (Langerhans cells) found by immunofluorescence was 16.1% of all cells in bronchoalveolar lavage fluid, indicating pulmonary involvement due to HSC. This is a rare case of Hand-Schüller-Christian disease with pulmonary fibrosis.

Adult↗

[A study on in vitro antibacterial activity and clinical usefulness in respiratory tract infections of panipenem/betamipron, a newly synthesized carbapenem antibiotic].

Panipenem/betamipron (PAPM/BP) is a combination drug of PAPM, a new parenteral carbapenem antibiotic and BP, an amino acid derivative at a weight ratio of 1:1. Its in vitro antibacterial activities against clinically isolated respiratory pathogenic bacteria were determined. It was superior to imipenem (IPM) in the in vitro antibacterial activities against Haemophilus influenzae, Haemophilus parainfluenzae, Branhamella catarrhalis, Staphylococcus aureus including MRSA, Klebsiella pneumoniae, Serratia marcescens and Escherichia coli. PAPM had antibacterial activities almost equal to those of IPM against Streptococcus pneumoniae and Enterococcus spp. Against Pseudomonas aeruginosa, however, its antibacterial activity was about 1/4 that of IPM. The clinical usefulness of PAPM/BP was studied by dissolving it in a solution containing lactate and administering the solution by intravenous drip infusion to 12 cases of respiratory tract infections. Out of 11 cases with respiratory tract infections excluding cytomegalovirus pneumonia, the efficacy rate was 90.9%, with 4 cases of excellent and 6 cases of good responses. In terms of its bacteriological efficacies, eradication of pathogenic bacteria including super-infection were observed in 2 out of 4 strains, but 2 strains of P. aeruginosa remained unchanged. Six strains appeared as superinfected bacteria during and after administration of this preparation substituting original pathogens. Side-effects were not observed in the 12 cases, and in laboratory tests, slight transient increases of S-GOT and S-GPT were found in 1 case. In conclusion, PAPM/BP is a very useful parenteral antibiotic against respiratory tract infections and can be one of the drugs of the first choice.

Adult↗

Long-term low-dose administration of erythromycin to patients with diffuse panbronchiolitis.

Although diffuse panbronchiolitis (DPB) has carried a poor prognosis, long-term low-dose administration of erythromycin (EM) is very effective. We administered EM at a daily dose of 400-600 mg to 19 DPB subjects for more than 2 months. Sixteen subjects were relieved from productive cough and dyspnea, and their chest X-ray pictures were improved. We performed a pharmacokinetic study of EM in 11 DPB subjects (8 responders; 3 nonresponders) after the long-term low-dose administration. The maximal serum and sputum levels of EM were below the MICs of clinically pathogenic H. influenzae and P. aeruginosa which were often isolated from the sputum of DPB patients. No difference was observed in the absorption of EM between responders and nonresponders. The results suggested that DPB patients might respond favorably to EM due to mechanisms other than antibacterial activity. Individual variation in the absorption of EM was observed. As EM was effective at very low serum and sputum levels, it was suggested that even 200 mg/day of EM would be effective in DPB patients who had high serum and sputum EM levels and it was necessary to monitor the concentrations of EM in serum and sputum for the treatment of DPB to determine the appropriate dose of EM individually.

Adult↗

Continuous alprenolol infusion for control of hypertension in the acute stage of ruptured intracranial aneurysms.

The clinical benefits and hemodynamic effects of continuous alprenolol infusion for control of hypertension in the acute stage of ruptured cerebral aneurysms were investigated. Twenty-five patients manifesting systemic hypertension (greater than 160/100 mmHg) were treated with alprenolol, a beta-adrenergic antagonist, phentolamine, an alpha-adrenergic antagonist, and trimethaphan camsilate, a ganglionic blocker, given intravenously. All drugs decreased the mean arterial blood pressure significantly. However, alprenolol decreased the heart rate and cardiac index while phentolamine increased them. Alprenolol also decreased arterial catecholamine and renin activity, but caused no change in central venous pressure, pulmonary capillary wedge pressure, pulmonary vascular resistance, and systemic vascular resistance. The results indicate the usefulness of continuous alprenolol infusion for the control of acute hypertension in hemorrhagic cerebrovascular disease. The mode of action of alprenolol is also discussed.

Adult↗

Neurosurgical application of a flow-directed oximetry thermodilution catheter for evaluation of cerebral blood flow--technical note.

The neurosurgical application was evaluated of a flow-directed oximetry thermodilution catheter for measurement of oxygen saturation in the jugular vein, which reflects cerebral blood flow (CBF). The catheter allows estimation of changes in CBF during carotid endarterectomy and therapeutically induced hypertension in the management of delayed vasospasm after subarachnoid hemorrhage.

Catheterization, Swan-Ganz↗

Direct calorimetry using Swan-Ganz catheter for evaluation of general metabolic expenditure in acute cerebrovascular disease--comparison between direct Fick method and indirect calorimetry technique.

Oxygen consumption calculated by the direct Fick method using a Swan-Ganz catheter (D-VO2) and indirect calorimetry using a metabolic computer (ID-VO2), carbon dioxide production calculated by the latter method, and respiratory quotient were determined pre- and postoperatively in 12 patients with acute hypertensive intracerebral hemorrhage and eight patients with acute ruptured intracranial aneurysm. The mean D-VO2 value was slightly lower than the mean ID-VO2 value, but had a significantly positive correlation. The regression curve was very close to the line of identity. The total metabolic expenditure can be calculated from D-VO2 and daily urinary nitrogen excretion. Direct calorimetry using a Swan-Ganz catheter is a simple method to evaluate metabolic expenditure in acute hemorrhagic cardiovascular disease.

Acute Disease↗

Cerebral blood flow measurements using stable xenon CT with very short inhalation times.

A noninvasive, simplified method using inhalation of stable xenon (Xe(s)) and computed tomographic (CT) scanning to estimate regional cerebral blood flow (rCBF) and regional partition coefficient (r lambda) is described. Twenty-four patients with cerebrovascular occlusive disease and six volunteer controls inhaled 30% Xe(s) and 70% oxygen for 180 seconds and exhaled for 144 seconds during serial CT scanning without denitrogenation. The end-tidal Xe(s) concentration was continuously monitored with a thermoconductivity analyzer to determine the build-up range (A value) and build-up rate constant (K value) for arteries with the curve fitting method. The time-CT number (Hounsfield unit) curve for cerebral tissue during the Xe(s) washin and washout phases was used to calculate r lambda and rCBF using least squares curve fitting analysis. The resultant r lambda and rCBF map demonstrated a reliable distribution between the gray and white matter, and infarcted areas. rCBF was high in gray matter, low in white matter, and much lower in infarcted areas than in white matter, r lambda was high in white matter, low in gray matter, and much lower in infarcted areas. Xe(s) CT-CBF studies with very short inhalation of 180 seconds is a clinically useful method for evaluation of rCBF in patients with cerebrovascular diseases.

Administration, Inhalation↗

Successful excision of a juvenile-type spinal arteriovenous malformation following intraoperative embolization. Case report.

The case of a 57-year-old woman with a 14-year history of progressive paraparesis is presented. Selective spinal angiography revealed a juvenile-type spinal arteriovenous malformation (AVM) with a typical large size and rapid flow. The AVM was located primarily in the retromedullary space at the cervicothoracic junction. The AVM was successfully obliterated by intraoperative embolization using isobutyl-2-cyanoacrylate and surgical excision.

Arteriovenous Malformations↗