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Biomedical subjects

R Asayama

Publications and source records attributed to R Asayama.

At least 19 recordsLinked to original sources

Cytomegalovirus-induced interstitial pneumonitis in a patient with systemic lupus erythematosus.

We report an unusual case of cytomegalovirus (CMV) interstitial pneumonitis (IP) occurring in a 51-year-old Japanese woman with systemic lupus erythematosus (SLE). She developed hypoxemia after intensive immunosuppressive therapy with prednisolone and cyclophosphamide. Fine crackles were audible in the lower lungs bilaterally. Chest X-ray and computed tomography confirmed the presence of IP. CMV-antigenemia was confirmed by immunological staining of leukocytes using the peroxidase-labeled monoclonal antibody, HRP-C7. Hypoxemia improved gradually on methylprednisolone pulse therapy and gancyclovir, and CMV-antigen positive leukocytes disappeared from the peripheral blood. Data suggest the importance of CMV as a cause of IP in SLE, and the usefulness of the assay for CMV-antigenemia with C7-HRP for rapid diagnosis.

Antigens, Viral↗

[Comparison between monotherapy with imipenem/cilastatin sodium (IPM/CS) and combinations of IPM/CS and other drugs for treating bacterial infections in patients with hematopoietic disorders].

One hundred and nine patients with infections concurrent with hematopoietic disorders were treated with imipenem/cilastatin sodium (IPM/CS) either alone (IPM/CS monotherapy) or in combination with other antimicrobial drugs (IPM/CS combination therapy). The following results were obtained. 1. One hundred and nine patients were allocated at random to two groups: 53 patients to IPM/CS monotherapy and 56 patients to IPM/CS combination therapy. Fourteen patients (6 and 8 in the 2 groups, respectively) were excluded from the clinical evaluation. There were not significant differences between the two groups with respect to the background. 2. The efficacy rates of the 2 treatments against bacterial infections were as follows: in the IPM/CS monotherapy group, 62.5% in 8 patients with sepsis, 75.0% in 23 patients with fever of undetermined origin (FUO), 50.0% in 10 patients with pneumonia, and 68.3% in the 47 patients, and in the IPM/CS combination group, 85.7% in 7 patients with sepsis, 63.6% in 24 patients with FUO, 50.5% in 8 patients with pneumonia, and 67.4% in the 48 patients. The differences between the two groups were not significant. 3. Among the drugs used in combination with IPM/CS, antibiotics other than penicillins, cephalosporins, and aminoglycosides were used in 12 patients and a high efficacy rate of 91.7% was obtained. 4. Bacteriologically, 19 and 17 strains were isolated from the IPM/CS monotherapy and combination therapy groups respectively, and the eradication rates were 100% and 88.9% respectively. 5. Side effects were noted in 2 patients in the IPM/CS monotherapy group and 7 in the combination therapy group, but all of these resolved after discontinuation or completion of the treatment. The efficacies against severe bacterial infections in the presence of hematopoietic disorders were not different between IPM/CS alone and IPM/CS in combination with other antibiotics. Adverse reactions were uncommon with the monotherapy.

Adolescent↗

Post-infantile giant cell hepatitis in an elderly female patient with systemic lupus erythematosus.

A 69-year-old Japanese female was admitted because of general fatigue. Laboratory data showed elevation of serum total bilirubin, transaminase, gamma-glutamyl transpeptidase, and creatinine levels. An immunological study revealed hypergammaglobulinemia, low titer of complement, and high titers of antinuclear antibody, anti-DNA antibody, and circulating immune complexes. Antibodies to parainfluenza virus 3 were positive. Histology of the liver disclosed numerous giant cell hepatocyte transformations with the lobular architecture being slightly distorted by portal inflammation and fibrosis. These findings led us to make a diagnosis of giant cell hepatitis associated with systemic lupus erythematosus. Prednisolone was effective in improving the anemia and the serum immunoglobulin, immune complex, and antinuclear antibody levels. The addition of cyclosporine to the initial corticosteroid therapy was also beneficial in decreasing the transaminase level and in improving liver histology. The patient died of acute pneumonitis and renal failure on the 166th day after admission. Parainfluenza virus 3 and autoimmune mechanisms were thus considered to be the causes of the giant cell hepatitis.

Aged↗

[Two cases of systemic lupus erythematosus associated with fatty liver and Basedow's disease].

We present two cases of systemic lupus erythematosus (SLE) associated with both Basedow's disease and fatty liver. The first case is a 46-year-old Japanese female who was admitted because of high fever and general fatigue. She had been diagnosed as having Basedow's disease and treated with thiamazole for over 4 years. Since thiamazole-induced lupus was unlikely because of high titer anti-nuclear antibody and anti-DNA antibody and low levels of complements, a diagnosis of SLE was made. The upper abdominal ultrasound study and the specimen obtained by liver biopsy performed before initiating steroid therapy demonstrated marked fatty liver. SLE itself is considered as an etiology of fatty liver in this case. The second case was a 25-year-old Japanese female with SLE. She had been treated with prednisolone for 13 years and was complicated with Basedow's disease 10 years later. Fatty liver was also demonstrated in this patient on ultrasonography, and was thought to be resulted from long-term steroid hormone administration.

Adult↗

Retroperitoneal fibrosis associated with scirrhous gastric cancer.

A case of retroperitoneal fibrosis associated with scirrhous gastric cancer is reported. A sixty two-year-old Japanese female was admitted because of acute renal failure. The patient's serum creatinine level showed 3.2 mg/dl while the blood urea nitrogen level was 23 mg/dl. An ultrasound study of the upper abdomen revealed bilateral hydronephrosis. Drip infusion pyelography revealed a dilated right renal pelvis without ureteral obstruction. The left kidney was not opacified, suggesting a functional disorder. Gastrography and gastrofiberscopy revealed scirrhous gastric cancer. Signet ring cell carcinoma was later demonstrated histologically by biopsy specimens. CT demonstrated a prominent thickening of the gastric wall and hydronephrosis, although no prevertebral soft tissue masses were observed. A total gastrectomy was performed with failure to surgically decompress the ureters because fibrous plaque had firmly enveloped the retroperitoneal structures. Biopsy specimens of the retroperitoneum revealed an invasion of the tumor cells and prominent fibrosis. As an etiology of renal failure, ureteral stenosis resulting from secondary retroperitoneal fibrosis was also considered.

Acute Kidney Injury↗

Spontaneous remission of acute adult T-cell leukaemia with chromosomal abnormality infiltrating to skin and liver.

Acute type of adult T-cell leukaemia (ATL) has been recognized as highly-progressive T-cell malignancy with a median survival of 7 months. We present a case who had a spontaneous remission from acute type ATL with organ involvement and chromosomal abnormality implying very poor prognosis. Although the mechanism of spontaneous remission remains uncertain, our case was unique with regard to the progression and regression of leukaemia.

Chromosome Aberrations↗

[Dose escalation study of high dose etoposide in autologous hematopoietic stem cell transplantation].

Eight cases with poor prognosis hematological malignancies (non-Hodgkin lymphoma, 6 cases; acute non-lymphocytic leukemia, 2 cases) and nine cases with non-hematological malignancies were treated with high dose etoposide (VP16) containing regimen followed by autologous hemopoietic stem cell transplantation. Results were as follows; 1) all of three chemotherapy sensitive relapse patients with hematological malignancies continue complete remission without any cyto-reductive therapy 2) one of four refractory relapse patients continue remission 3) partial anti-tumor effect was noted in non-hematological malignancies, however, only two cases continue complete remission. Remission duration of other responders was not so long. The results disclosed the dose-limiting factor of high-dose VP16 therapy as reversible stomatitis with no related mortality, and maximal tolerated dose appears to be 60 mg/kg over 72 hr with 45 mg/kg as a safe and recommended therapeutic dose in future clinical trial. The clinical effect of dose escalation was not clearly demonstrated.

Adult↗

[Effectively treated hypertension with minocycline hydrochloride infusion into the cyst in a patient with a multi-septated massive hepatic cyst].

We present a successfully treated case of a multi-septated massive hepatic cyst with repeated injection of minocycline hydrochloride (MINO). A 57-year-old Japanese female complaining of right back pain, hypochondralgia and hypertension had a multi-septated massive hepatic cyst, 25 cm in diameter. Multiple cysts of various sizes were also seen in liver and kidneys. In order to reduce the size of the massive hepatic cyst to relieve the complaints, we performed the reduction therapy of the cyst. After a pig tail catheter was inserted into the cyst, the cystic fluid was aspirated and then a total of 3900 mg of MINO was injected. Red-brownish, serous cystic fluids were obtained. Cytology and bacterial culture were negative, but the LDH (3, 336 IU/l) and CA19-9 (751,500 U/l) concentrations were very high. After the 9 series of the therapy, the cyst was minified on CT and the patient's symptoms were relieved. Furthermore high blood pressure was improved. Thus, the therapy of size-reduction for a massive hepatic cyst is revealed to be very safe and useful.

Cysts↗

Immunodeficiency in preclinical smoldering adult T-cell leukemia.

We treated two Japanese patients with Pneumocystis carinii pneumonia. Inclusion bodies in both adrenal glands of patient no. 1 indicated a herpesvirus infection. The patient no. 2 recovered from the pneumonia upon sulfametoxazole-trimethoprim medication and high-dose methylprednisolone therapy. In both patients, anti-human T-cell leukemia virus type I (HTLV-I) antibodies were positive and anti-human immunodeficiency virus antibodies were negative. Peripheral leukocytes in patient no. 1 numbered 13.6 X 10(3)/microliter with 25% morphologically normal lymphocytes and 4% abnormal. Lymphocyte surface markers were 72.6%, CD4+, 13.6% CD8+ and 46.4% CD3+. In patient no. 2, leukocytes numbered 13.8 X 10(3)/microliter, including 18% lymphocytes, although no morphologically abnormal lymphocyte was evident. Lymphocyte markers were 36.6% CD4+, 16.8% CD8+ and 46.6% CD3+. Monoclonal integration HTLV-I proviral DNA in lymphocytes of patient no. 2 was demonstrated by Southern blotting. Thus, both patients must have had smoldering adult T-cell leukemia (ATL) without any cutaneous involvement, whereas the morphological diagnosis from peripheral blood smears was one of HTLV-I carrier status with a few atypical lymphocytes, i.e., the preclinical state of smoldering ATL. Pneumocystis carinii infections, a viral infection of the adrenals (no. 1), negative purified protein derivatives of the tuberculin reaction and suppressed blastogenesis of the peripheral lymphocytes indicated HTLV-I-induced impairment of the immune mechanism to have already occurred in both patients without there being a vast proliferation of ATL cells.

Adult↗