Biomedical subjects

K Chida

Publications and source records attributed to K Chida.

At least 37 records · Page 2Linked to original sources

PubMed1991

Identification of lamin B2 as a substrate of protein kinase C in BALB/MK-2 mouse keratinocytes.

Protein phosphorylation by activation of protein kinase C was examined using quiescent cultures of the mouse epidermal keratinocyte line BALB/MK-2. Treatment with phorbol ester caused rapid phosphorylation of five proteins with molecular weights of 80,000, 70,000, 40,000, 34,000, 28,000. Of these proteins, the 70,000 molecular weight one (p70) was studied further. Its position on two-dimensional gel suggested that p70 is nuclear envelope lamin B. This possibility was confirmed by the co-migration of p70 with the lamin fraction of mouse liver and its immunoprecipitation with antinuclear lamina antibody. The lamin B fraction consists of lamin B1 and lamin B2. Evidence that p70 is lamin B2 was obtained by peptide mapping and amino acid sequencing. Lamin B2 is the only lamin that shows a substantial increase in phosphorylation on treatment of BALB/MK-2 cells with phorbol ester.

Amino Acid Sequence↗

PubMed1991

Lack of correlation between P pulmonale and right atrial overload in chronic obstructive airways disease.

The correlation between P pulmonale and right atrial overload in chronic lung disease was studied. Right atrial pressure, pulmonary artery pressure, and cardiac output were measured with a Swan-Ganz catheter in nine patients with chronic lung disease and P pulmonale on the electrocardiogram (P wave amplitude of greater than or equal to 2.5 mm (0.25 mV) in leads II, III, and a VF. The results were compared with those in six patients with an atrial septal defect (left to right shunt greater than or equal to 50%) and six patients with pulmonary hypertension (mean pressure greater than or equal to 30 mm Hg without left sided heart disease). Right atrial volume and wall thickness were measured in 10 cases of P pulmonale among 1000 necropsy cases and compared with 141 normal hearts from the same series. The patients with P pulmonale did not show a significant increase in right atrial or pulmonary artery pressures. None of the patients with an atrial septal defect or pulmonary hypertension had P pulmonale on the electrocardiogram. In the necropsy cases of P pulmonale mean (1 SD) in right atrial volume (32 (12) ml) and wall thickness (1.5 (0.7) mm) were not significantly increased (40 (14) ml and 1.4 (0.5) mm in the normal hearts). There was a significant inverse relation between the presence of P pulmonale and the cardiothoracic ratio. In all the patients with P pulmonale chest x ray showed a low cardiothoracic ratio, a considerably depressed diaphragm, and a pendulous heart. This study showed no correlation between P pulmonale and right atrial overload in chronic lung disease. A more vertical anatomical position of the heart, particularly of the right atrium, seems to be the major factor responsible for generation of P pulmonale in chronic airways disease.

Aged↗

PubMed1991

Long-term effects of ofloxacin on clinical courses in patients with diffuse panbronchiolitis.

To ascertain the long-term effects of ofloxacin (OFX) on clinical parameters in cases of diffuse panbronchiolitis (DPB), we treated 18 patients with this disease with OFX and compared the clinical findings before and after treatment. Pulmonary function tests including percent vital capacity, arterial oxygen tension and arterial-alveolar oxygen tension difference significantly improved with OFX. In addition, the incidence of acute exacerbation and the duration of hospitalization were reduced. These observations indicate that OFX is a useful drug for the management of chronic respiratory infections such as DPB.

Bronchiolitis↗

PubMed1991

Regulation on the expression of carcino-embryonic proteins in newborn rat hepatocytes by dexamethasone. An enzyme histochemical and immunohistochemical study.

Dexamethasone (DEX) was administrated intraperitoneally to newborn rats at a dose level of 2 micrograms/g body weight/day for four days, starting 4 days after birth. After administration of DEX, large quantities of glycogen granules accumulated in the cytoplasm of hepatocytes and the activity level of gamma-glutamyl transpeptidase (gamma-GTP) in liver homogenate increased significantly, whereas that of alkaline phosphatase (ALP) exhibited no significant difference in comparison with the control group. In the histochemical analysis, after administration of DEX, a high level of activity of gamma-GTP appeared along cell borders between adjacent hepatocytes in the peripheral portion of liver lobules. On the other hand, a low level of analysis, no hepatocyte showing positive reactions to Alpha-fetoprotein (AFP) could be recognized after administration of DEX, and in livers of newborn rats receiving DEX, the number of hepatocytes which incorporated bromodeoxyuridine (BUdR) decreased. The present study showed in newborn rat that DEX induced the differentiation of hepatocytes and regulated the expression of carcino-embryonic proteins.

Animals↗

PubMed1991

[Systolic anterior motion of the anterior mitral leaflet and/or the chordae tendinae in the elderly].

Systolic anterior motion of the anterior mitral leaflet and asymmetric septal hypertrophy (ASH) are characteristic features of hypertrophic obstructive cardiomyopathy (HOCM) on an echocardiogram. Among 9,670 patients over 60 years old examined by echocardiography from January, 1984 to October, 1990, 55 patients showed systolic anterior motion of the anterior mitral leaflet and/or the chordae tendinae (SAM). We investigated clinical features and morphological features of the left ventricle on an echocardiogram in the 55 patients with SAM. They were classified into three groups according to the degree of SAM. Thirty eight cases (group I) had no mitral and/or chordal-septal contact, 10 (group II) had brief contact (less than 30% on the echocardiographic systole) and 7 (group III) had prolonged contact (greater than or equal to 30%). Ages ranged from 60 to 99 with a mean age of 78.2 years. There were 19 males and 36 females and there was a predominance of females in each group. Thirty five cases had hypertension and 34 left ventricular hypertrophy on electrocardiograms. One case of group I, 3 of group II and 7 of group III had a clinical diagnosis of HOCM. In comparison with each group, the incidence of LVH (SV1 + RV5 greater than or equal to 35 mm) was 52% in group I, 90% in group II and 83% in group III and that of LVH (SV1 + RV5 greater than or equal to 70 mm) was 29%, 20% and 67%, respectively. On echocardiographic examination, the diastolic descent rate of the anterior mitral leaflet in the 3 groups was 36.1 +/- 13.1 mm/sec, 19.4 +/- 13.1 mm/sec and 10.7 +/- 11.8 mm/sec (p less than 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗

PubMed1991

[The significance of the heparin precipitable fraction in lung diseases].

The authors recently experienced a case of idiopathic interstitial pneumonia (IIP) that exhibited skin ulcers due to increased heparin precipitable fraction (HPF) in plasma. This case prompted us to investigate the occurrence and significance of HPF in interstitial pneumonia (IP). The subjects included patients with IIP (acute exacerbation 6 cases, chronic active stage 12 cases), IP associated with collagen vascular disease (CVD) (9 cases) and granulomatous lung diseases (7 cases). The data indicated that all of the cases with acute exacerbation of IIP exhibited increased plasma HPF values (218-951 mg/dl) compared to those of normal controls (less than 180 mg/dl). In contrast, the values ranged within normal limits in all of the cases with IP associated with CVD. In a companion study, we measured plasma HPF values in patients with lung cancer, bacterial pneumonia and diffuse panbronchiolitis. It was found that 22% of the subjects showed increased plasma HPF values. We also investigated whether there were correlations between plasma HPF and various inflammatory parameters. The data revealed that there were correlations between HPF and ESR, CRP, alpha 1-globulin, alpha 2-globulin, complement (C3) or fibrinogen. However, there was no correlation between HPF and fibronection. These results suggest that plasma HPF is valuable to evaluate the acute exacerbation of IIP, although the elevation of plasma HPF levels is not specific.

Acute-Phase Reaction↗

PubMed1991

[Fulminant mycoplasma pneumoniae infection presenting with Stevens-Johnson syndrome & respiratory failure].

An 18-year-old man was admitted to Hamamatsu University Hospital on February 15, 1985, with high fever, vesicular and papular rash involving the skin and mouth, conjunctivitis, productive cough and dyspnea. A diagnosis of Stevens-Johnson syndrome was made by skin biopsy, and chest X-ray showed an infiltrate in the right lower lung filed. Despite treatment with corticosteroids and antibiotics, the mucocutaneous lesions did not heal, and the pneumonia progressed to both lung fields. Because the patient had developed dyspnea, a tracheotomy was performed, mechanical ventilatory support was instituted, and high-dose corticosteroid therapy was started. However, jaundice due to intrahepatic cholestasis, hematuria, hematochezia, sepsis, and subcutaneous and mediastinal emphysema ensued, and the patient died of respiratory failure on March 1. Postmortem examination of the lung demonstrated diffuse alveolar damage. The complement-fixation titer for Mycoplasma was 1:64, compared with a level of less than 1:4 on admission. This case was though to be one of fulminant Mycoplasma pneumoniae infection presenting with Stevens-Johnson syndrome, respiratory failure and other extra-pulmonary complications.

Adolescent↗

PubMed1991

[Clinicopathologic study of various lung diseases with bronchiolitis obliterans organizing pneumonia (BOOP) pattern in open lung biopsy].

The histologic findings of BOOP are nonspecific, and the diagnosis of idiopathic BOOP is one of exclusion. We studied the clinicopathologic features of various lung diseases with histopathological appearance of bronchiolitis obliterans organizing pneumonia (BOOP) pattern in open lung biopsy specimens. The 17 patients with BOOP pattern studied included idiopathic BOOP (n = 7), unclassified interstitial pneumonia (n = 1), collagen vascular disease (n = 3, RA 1, PM/DM 2), hypersensitivity pneumonitis (HP, n = 2), eosinophilic pneumonia (EP, n = 1), multiple lung abscesses (n = 1), limited form of Wegener's granulomatosis (n = 1), and pneumocystis carinii pneumonia associated with adult T cell leukemia (n = 1). There were no differences in clinical symptoms, laboratory data, respiratory function, and cytological findings in bronchoalveolar lavage fluid (BALF) between cases of idiopathic BOOP and other lung diseases. The duration of clinical symptoms was less than one year in 16 patients (one case had no symptoms). Chest X-rays showed bilateral patchy, nodular, or reticular shadows in all cases. Multiple patchy migratory shadows were only observed in cases of idiopathic BOOP or EP. Organizing pneumonia was recognized in the transbronchial lung biopsy specimens of all patients with idiopathic BOOP, HP or EP. Regarding prognosis, relapses occurred in idiopathic BOOP (n = 5), polymyositis, EP, limited form of Wegener's granulomatosis, and Pneumocystis carinii pneumonia. Four patients with idiopathic BOOP relapsed when steroid therapy was decreased or stopped. These findings indicate that idiopathic BOOP should be differentiated from other lung diseases, and these patients should be followed for a long period of time.

Adult↗

PubMed1991

[Pulmonary interstitial pneumonia in association with Hermansky-Pudlak syndrome].

A 33-year-old albinotic woman whose parents were consanguineous was referred to our hospital with dry cough, dyspnea on exertion, and diffuse reticulonodular shadows on chest X-ray film. She had no apparent bleeding diathesis, although platelet serotonin content and ATP release were reduced. Open lung biopsy revealed pulmonary interstitial fibrosis with deposition of ceroid-like material with alveolar and interstitial macrophages. From these findings, the diagnosis of Hermansky-Pudlak syndrome (HPS) with interstitial pneumonia was mode. The reported characteristics of pulmonary interstitial pneumonia associated with HPS are occurrence of this disease in the thirties to forties, diffuse reticulonodular shadows in all lung fields with sparing of the subpleural zones, and bullous formation in the upper lobes. Progression usually occurs to diffuse interstitial fibrosis, but these is little decrease in lung volume. The prognosis of HPS with interstitial pneumonia is worse than that of uncomplicated HPS, and patients die of respiratory failure within 1 to 6 years after diagnosis. Steroid therapy is not effective.

Adult↗

PubMed1991

[Cisplatin, doxorubicin and vindesine in the treatment of advanced non-small cell lung cancer].

Thirty-seven patients with advanced non-small cell lung cancer were enrolled to evaluate a combination chemotherapy of cisplatin (80 mg/m2), doxorubicin (30 mg/m2) and vindesine (2 mg/m2 x 3). The overall response rate was 27% with ten partial remission. The median survival of whole patients was 11.4 months. The calculation of median survival of the patients with partial remission has not been completed: nine of ten patients have been still alive during the follow-up period of 4 to 16 months. The survival of the patients with PR was significantly different from those of the patients with NC or PD. The major toxicity was myelosuppression. These results indicate that a combination chemotherapy with cisplatin, doxorubicin and vindesine is a moderately effective regimen against non-small cell lung cancer compared to others.

Adult↗

PubMed1991

[A case of Klinefelter syndrome associated with lung cancer and RA lung].

A 50-year-old man was admitted for evaluation of an abnormal shadow on a chest X-ray. He had experienced pain and swelling in his fingers for three years. He had also noticed that he is impotent. The diagnosis of Klinefelter syndrome and rheumatoid arthritis (RA) was established by clinical findings and chromosomal analysis. Transbronchial biopsy revealed adenocarcinoma and right upper lobectomy was performed. Open lung biopsy showed interstitial pneumonia. In conclusion, we reported a rare case of lung cancer, rheumatoid arthritis and RA lung associated with Klinefelter syndrome.

Adenocarcinoma↗

PubMed1991

[Two cases of hypersensitivity pneumonitis due to contamination of an ultrasonic humidifier].

Two cases of hypersensitivity pneumonitis due to contamination of ultrasonic-humidifier were reported. The first case, a 64-year-old man, developed fever and dyspnea on exertion in January 1986. He was hospitalized for 18 days and received antibiotics for presumptive bacterial pneumonia. Half a day after discharge, those symptoms recurred. On readmission, fine crackles were heard at the left lung base, and chest X-ray film showed ground glass shadows all over the lung fields. Bronchoalveolar lavage (BAL) and transbronchial lung biopsy (TBLB) were performed on the next day after readmission. TBLB specimen revealed lymphocyte alveolitis, granulomatous tissue and infiltration of polymorphonuclear neutrophils (PMN) in alveoli. Differential cell count of the BAL fluid showed not only lymphocytosis (38.2%) but also increased PMNs (44.2%). In the second BAL performed 18 days later, the value of PMNs demonstrated a dramatic decrease. Environmental challenge tests revealed that his hypersensitivity pneumonitis was caused by an ultrasonic humidifier in his bed room. Immunological examinations showed positive Arthus type skin reaction and serum precipitin against Aspergillus fumigatus. Inhalation challenge with A. fumigatus produced cough and dyspnea with a decrease of 10 Torr in PaO2. These data suggest that A. fumigatus may be the causative antigen in this case. The second case, a 64-year-old man who had used ultrasonic humidifier in his living room, was admitted for 8 weeks with an illness characterized by cough, low fever and general malaise on 22 January 1987. Examination revealed fine crackles on both lung bases. Chest X-ray film demonstrated diffuse nodular shadows. The TBLB specimen showed lymphocytic alveolitis and bronchiolitis.(ABSTRACT TRUNCATED AT 250 WORDS)

Acremonium↗

PubMed1991

[Influence of various factors on glucocorticoid receptors of bronchoalveolar lavage (BAL) cells from rabbits].

It is supposed that the effects of glucocorticoid on target cells are mediated by glucocorticoid receptors. Recent investigations have demonstrated that changes in the composition and function of immune cells in bronchoalveolar lavage (BAL) cells of patients with immunological lung diseases are associated with the intensity of alveolar septal inflammation, or indicate steroid responsiveness. In order to clarify the physiologic changes of glucocorticoid receptor (GR) we measured the GR content of BAL cells obtained from rabbits with various conditions of the host (aging, immunological activation, malnutrition and pretreatment with prednisolone). The specific binding to GR was carried out by incubating BAL cells with 1, 2, 4, 10, 20, 40 nM 3H-prednisolone in the presence or absence of 1.0 x 10(-6) M unlabeled prednisolone. BAL cells from rabbits of various ages exhibited age-dependent reduction of GR content. There were striking differences of GR content in BAL cells from normal and BCG-vaccinated rabbits. The former yielded 3124 +/- 365 binding sites per cell, whereas activated BAL cells showed considerably higher values (6807 +/- 766). Chronological changes in GR content in BAL cells were also observed in normal rabbits pretreated with intravenous injection of prednisolone (2 mg/kg). The GR content was lowest at 3 hours after administration, reaching a peak at two days and then returned to control level. As for nutritional modulation, GR content tended to increase in the initial phase of fasting (days 4 to 8), and then decreased after day 12. In contrast, there were no significant changes in dissociation constants among BAL cells from animals in normal, immunologically activated and malnourished conditions.(ABSTRACT TRUNCATED AT 250 WORDS)

Aging↗

PubMed1991

[Five cases of tuberculosis occurring in an accounting office during 5-year period].

Five cases of pulmonary tuberculosis occurred in an accounting office during 5-year period. Patients 1 and 2 were hospitalized in January and March respectively in 1984. Patients 3 and 4 were found to have abnormal shadows in 1987. Patient 5 was admitted to our hospital in July, 1988. Patients 1 and 2 showed a similar pattern of drug resistance. The desk of Patient 3 was located in front of the desk of Patient 1. Retrospective review of chest X-ray film of Patient 3 taken two years before admission revealed that active contagious tuberculosis had been misdiagnosed as inactive type, resulting in delayed treatment. Patients 4 and 5 worked near to Patient 3 for the past two years. PPD skin test was carried out on 47 workers in the same room and other rooms as well. The distribution of maximum diameters of erythema for workers in the same room did not show a bimodal distribution, but the mean diameter (30.6 +/- 16.4 mm) was larger than that (22.3 +/- 17.2 mm) for workers in other rooms. Preventive administration of Isonicotinic acid hydrazide (INH) was made for 10 workers. These observations suggest that routine chest X-ray film should be carefully checked, and PPD skin test should be performed to those at risk of tuberculosis infection.

Accounting↗

PubMed1991

[A case of diffuse panbronchiolitis complicated by malignant thymoma and Sjögren's syndrome].

A patient with diffuse panbronchiolitis (DPB) complicated by malignant thymoma and Sjögren's syndrome with pseudolymphoma is reported. A 58-year-old woman developed productive cough, dyspnea and sicca in the mouth. Laboratory findings on admission indicated a high titer of cold hemagglutinin, positive of anti-DNA and negative PPD skin test. Chest-X ray revealed diffuse reticulonodular shadows in the lower lung field and anterior mediastinal mass shadow. Pulmonary function studies showed reduction of the vital capacity, forced expiratory volume in one second, DLco and hypoxia (PaO2; 69.1 Torr). Lung biopsy and resection were performed. Histologically infiltration of mononuclear cells and accumulation of foamy cells around respiratory bronchioles and stenosis of terminal bronchioles by granulation tissue was compatible with the diagnosis of DPB and the mediastinal tumor appeared to be a malignant thymoma invading to pericardium. Focal infiltration of lymphocytes was also recognized around the salivary glands (Sjögren's syndrome) and in the alveolar septa (pseudolymphoma). This case of DPB might have been associated with lymphoproliferative disorders.

Bronchiolitis↗

PubMed1991

[Chemotherapeutic evaluation of pulmonary tuberculosis patients with a complication of hepatic dysfunction].

A retrospective study on the evaluation of antituberculous drugs for patients with hepatic dysfunction was undertaken to clarify treatment regimens. The values of GOT, GPT and T. Bil were used as indicators of liver function, and the "deterioration" in the liver function was defined as a level greater than 1.5 times the initial value. Of total 538 cases of active pulmonary tuberculosis, 103 cases (19.1%) had abnormalities in liver functions before chemotherapy, and 21 of 103 cases showed the deterioration in their liver functions during chemotherapy. There was little relationship between the initial status of liver functions and the incidence of their deteriorations after chemotherapy. Nine of 21 cases did not exceed the 3 times of normal ranges of liver functions. These nine cases could tolerate the same regimens of chemotherapy, and showed satisfactory clinical responses to chemotherapy with two exceptions: one died of tuberculosis and the other cerebrovascular disease. On the other hand, of 12 cases with elevated values of hepatic function greater than 3 times the normal limits, 6 cases discontinued chemotherapy. One case, however, died of hepatic failure related to chronic active hepatitis. Eight of 12 cases showed the rapid improvement of liver dysfunctions. These results suggest that antituberculous drugs are acceptable to patients with hepatic dysfunction as long as the elevations of GOT, GPT and T. Bil stay within 3 times of normal limits. Further chemotherapy could be continued under careful monitoring of liver functions even if the cases exhibit elevated levels of liver functions greater than 3 times the normal ranges.

Adult↗

PubMed1990

Regulation of creatine phosphokinase B activity by protein kinase C.

We previously reported that topical application of 12-o-tetradecanoylphorbol-13-acetate to mouse skin causes phosphorylation of epidermal proteins with molecular weights of 40,000 (p40) and 34,000 (p34). In the accompanying paper, p40 was identified as creatine phosphokinase B. Here we report that both in intact cells and in a cell-free system, phosphorylation of creatine hosphokinase B by protein kinase C resulted in an increase in its ability to catalyze the transfer of the high-energy phosphate of phosphocreatine to ADP, thereby producing ATP. H-7, a specific inhibitor of protein kinase C was found to abolish the increase in enzyme activity. Lineweaver-Burk plot analysis indicated that the increased activity was mostly due to a decreased Km for phosphocreatine. Phosphorylation and activation of creatine phosphokinase B may be a physiological response to maintain ATP balance when a protein kinase C pathway is stimulated.

1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine↗

PubMed1990

Purification and identification of creatine phosphokinase B as a substrate of protein kinase C in mouse skin in vivo.

We previously described epidermal proteins with molecular weights of 40,000 (p40) and 34,000 (p34) as target proteins of protein kinase C in mouse skin carcinogenesis in vivo. In the present work, p40 was purified from mouse brain by the use of 32P-labeled p40 of BALB/MK-2 cells as a tracer. Following four lines of evidence indicate that p40 is creatine phosphokinase B. 1) The amino acid sequences of all peptide fragments of p40 from mouse brain were located in the primary structure of creatine phosphokinase B. 2) p40 of BALB/MK-2 cells was immunoprecipitated with goat antibody against human creatine phosphokinase B. 3) p40 of BALB/MK-2 cells was absorbed to and eluted from a creatine affinity column. 4) Purified creatine phosphokinase B was phosphorylated in vitro by purified protein kinase C, but not by cAMP-dependent kinase or casein kinase II.

Alkaline Phosphatase↗