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Biomedical subjects

A Horikoshi

Publications and source records attributed to A Horikoshi.

At least 19 recordsLinked to original sources
PubMed1995

Relationship between responsiveness to colony stimulating factors (CSFs) and surface phenotype of leukemic blasts.

We examined the responsiveness of leukemic cells to colony stimulating factors (CSFs) as determined by 3H-TdR incorporation and surface phenotypes of leukemic blasts. In acute myeloid leukemia (AML), CD13 and/or CD33 positive and HLA-DR negative M1 and M3 cases tended to show high response to G-CSF, GM-CSFs and IL-3, however, all HLA-DR positive M1, M2, M4 and M5 cases were unresponsive to CSFs but showed high autonomous growth. In acute lymphocytic leukemia (ALL), no response was observed to any CSFs but high autonomous growth was found in mixed leukemia cases. Sole T or B lineage cases showed low autonomous growth. These results suggest the varied nature of the proliferative state in leukemia and the existence of a subgroup in M1.

Cell Division↗
PubMed1995

Rectus hematoma secondary to vomiting: a complication of conditioning regimen for bone marrow transplantation.

A 41-year-old woman with chronic myelogenic leukemia was scheduled to undergo transplantation of bone marrow. The patient complained of nausea and vomiting following the initiation of chemotherapy. One day prior to the planned termination of chemotherapy, the patient developed left-sided abdominal pain. Physical examination and imaging examination indicated the possibility of acute abdomen associated with bleeding or herniation. For therapeutic and diagnostic purposes, an emergency operation was performed. A 6 x 5 cm hematoma was detected within the left rectus abdominis muscle. It is suggested that the gastrointestinal symptoms should be carefully controlled in patients undergoing bone marrow transplantation.

Adult↗
PubMed1995

[Surgical treatment of metastatic lung tumor from colorectal cancer].

We have experienced thirty-one operations of metastatic lung tumors from colorectal cancer. Various factors affecting prognosis are studied based on 5-year survival in this report. Overall 5-year survival rate was 32%. Statistical significance was present in the relationship between the prognosis and both maximum diameter of lesions and the disease free intervals (DFI) after surgery for metastatic lesions. Though not significant, sex, stage of primary lesion, nodal involvement, surgical procedure, postoperative serum CEA were likely affecting factors on the prognosis. In contrast, there were no relationship between the prognosis and following factors: age, location of the metastatic lesion, DFI after the operation for primary lesion and chemotherapy. Although pulmonary metastasis is essentially an index of the advanced state of malignant diseases leading to poor prognosis, long-term survivors were encountered in our series of surgical treatments for pulmonary metastases from colorectal cancers. It was concluded to be important to make efforts to extend the indication for surgical treatment, since the appropriate selection of patients revealed to give excellent results from our experience of colorectal cancer. In order to improve the prognosis, early detection of pulmonary metastases is quite important, since the incidence of nodal involvement proved to be higher in lesions with larger diameter resulting in inferior survivals from the present study. In addition, low incidence of nodal involvement in small-sized lesion may support possible applicability of thoracoscopic surgery in the excision of metastatic tumors locating at peripheral lesion.

Adult↗
PubMed1995

[Aspergillus lumbar discitis in a patient with acute lymphoblastic leukemia following induction therapy].

A 47-year-old female was admitted in October 1988 because of anemia and lymphoblastic cells in peripheral blood. A bone marrow aspirate was hypercellular with 93.9% lymphoblasts negative for peroxidase staining. The case was diagnosed as ALL (L2), and treated with JALSG ALL-87 regimen. She developed spiky fever and endotoxin shock due to bacteremia caused by pseudomonas aeruginosa, then was treated with several antibiotics. With the recovery of leukocytes, the chest X-ray showed an infiltrative shadow and a cavity forming lung abscess resembling aspergilloma in her left lung. The cavity improved of transbronchial infusion following amphotericin B (AMPH-B). Although she achieved complete remission, she felt severe lumbago accompanied by a marked erosion of the vertebral body with disc space narrowing on her X-ray. Then she underwent surgery to remove a disc abscess, and 1 colony of the aspergillus species was cultured from the specimen. She was treated with intravenous AMPH-B, and post remission therapies were performed under the injection of anti-fungal agents. No remarkable symptoms of complications were recognized during the chemotherapy. AMPH-B is useful and safe for the management of aspergillus discitis.

Antineoplastic Combined Chemotherapy Protocols↗
PubMed1994

Experimental study of lung transplantation from non-heart-beating donor following brain death in canine model of left lung allotransplantation.

Thirty mongrel dogs were divided into 3 groups. Group I was a normal control group (n = 4) without transplantation procedure. Group II was a transplantation control group (n = 5) with left lung allotransplantation from heart-beating donor. Group III consisted of animals (n = 8) which received lung allografts from non-heart-beating donor following brain death. In Group III, brain death was brought about by intracranial hypertension with the inflation of balloon in the subdural space of donor. After 6 hours, the mechanical ventilation was discontinued followed by cardiac arrest. Left lung was excised twenty minutes after the cardiac arrest and was washed out with cold Ep4 solution for subsequent orthotopic allotransplantation. Right pulmonary arterial occlusion test (RPAO) were carried out under right thoracotomy to evaluate graft function immediately and 7 to 14 days after the surgery. PaO2, PAP and CO were measured before and 20 minutes after RPAO. All animals in Group II and 7 of 8 animals in Group III survived more than 7 days after surgery. No significant differences in the value of PaO2, mean PAP and TPVR with RPAO among three groups at each time of assessment, showing the possibility of lung transplantation from non-heart-beating donor followed by brain death.

Anesthesia↗
PubMed1994

[Lung transplantation from non-heart-beating donor following brain death in canine model].

Candidates for pulmonary transplantation have been limited because of extreme susceptibility to lung infections and pulmonary edema in the brain-dead donor. To ameliorate the donor shortage, two possibilities for expanding the donor source have been presented, i.e. xenotransplantation and transplantation from cardiac-dead donors. The present study was conducted to evaluate the possibility of lung transplantation from a non-heart-beating donor following brain death, using a canine model. Six mongrel dogs were put into a state of brain death by elevating intracranial pressure with a balloon catheter. Following the intravenous administration of methylprednisolone and heparin used for 6-hour management following brain death mechanical ventilation was discontinued leading to cardiac arrest with in a few minutes. Excision of the left lung was scheduled for twenty minutes after cardiac arrest, followed by washing out the pulmonary vasculature with cold Ep4 solution, and orthotopic transplantation into the recipient animal. Immunosuppression was achieved with methylprednisolone and azathioprine. A right pulmonary arterial occlusion test (RPAO) was performed to assess graft function immediately and 7 days postoperatively. All but one animal survived and three animals had an uneventful postoperative course, with the transplants alone according to immediate and 7 day postoperative, respectively, RPAO results. These outcomes indicate the possible feasibility of lung transplantation from non-heart-beating donors following brain death.

Animals↗
PubMed1994

[An experience of suprahyoid release for resection and reconstruction of the lower part of trachea].

An experience of suprahyoid release for resection and reconstruction of the lower part of trachea was reported. 51-year-old woman, complaining of continuous stridor, was diagnosed as tracheal tumor at another hospital and was transferred to our hospital for consecutive examination and surgical treatment. The size of the tumor was about 3 cm in longitudinal diameter and the distance between tracheal carina and lower edge of the tumor was estimated about 2 cm by tomography. At operation, following suprahyoid release in supine position, 6 tracheal rings were resected and reconstructed by end-to-end anastomosis through right posterolateral incision. Patients neck was forced to bend for three weeks and intravenous byperalimentation without oral intake was employed for two weeks to avoid misswallowing and dysphagia postoperatively. Oral intake was started at two weeks after operation and parenteral nutrition was no more necessary at 3 weeks after surgery. Misswallowing and dysphagia were not encountered at all. The tumor was diagnosed as adenoid cystic carcinoma pathologically and residual tumor was demonstrated in submucosal space at the oral margin of the resected specimen as well. She discharged from the hospital uneventfully after postoperative radiotherapy. The recurrence of the tumor has not been observed for 3 years postoperatively. It was confirmed that suprahyoid release is an useful technique and should be ready to introduce in the extensive resection of the trachea because of its little influence on laryngeal function.

Anastomosis, Surgical↗
PubMed1993

Intrapleural rupture of a pulmonary arteriovenous fistula occurring just beneath the pleura: report of a case.

We report herein a rare case of a 21-year-old man with Rendu-Osler-Weber disease, otherwise known as hemorrhagic teleangiectasia, in whom a spontaneous hemothorax occurred following the rupture of one of multiple pulmonary arteriovenous fistulae (PAVF). An emergency life-saving operation was performed which revealed the ruptured fistula lying just beneath the visceral pleura. This case demonstrates that patients in whom a pulmonary angiogram shows an arteriovenous fistula lying just beneath the visceral pleura should undergo prophylactic surgery to avoid a life-threatening emergency, whenever possible.

Adult↗
PubMed1993

Selective killing of murine leukemic cells by adenosine triphosphate (ATP): a study of the value of autologous bone marrow transplantation.

To assess the value of adenosine triphosphate (ATP) for ex vivo purging of leukemic cells in autologous bone marrow transplantation, its biological effects on the murine leukemic cell lines (WEHI3B and L1210) and normal murine bone marrow hemopoietic stem cells (CFU-C and CFU-S) were studied. After treatment with 4 mM of ATP for 6 h, the number of viable WEHI3B cells decreased to less than 0.1% of that of the control. Furthermore, 3H-thymidine incorporations were also completely inhibited in both WEHI3B cells and L1210 cells. These phenomena were related to the concentration and exposure period of ATP. Treatment of bone marrow mononuclear cells with ATP under the same condition reduced the number of CFU-C, day 9 CFU-S and day 12 CFU-S to only 58.5 +/- 8.7%, 92.6 +/- 8.2% and 83.5 +/- 28.5%, respectively, with no change in the number of marrow nucleated cells. Although the effect of ATP is not entirely specific to leukemic cells, these findings provide evidence that ATP is useful for purging residual tumor cells in autologous bone marrow transplantation.

Adenosine Triphosphate↗
PubMed1993

[Cerebral and testicular myeloblastoma formation in relapsing acute myeloid leukemia (M1) with t(8;21)].

This paper reports a relapsed case of acute myeloid leukemia with intracranial, testicular and intestinal tumor formation. A-56-year-old male, diagnosed as M1 on September, 1988, entered complete remission on October 14, 1988, aided by JAL-SG and AML-85 regimen. Blast cells with Auer rods demonstrated 8;21 translocation lacking 11q with 30 of 30 analyzed bone marrow cells, and the following antigen pattern: CD5+, CD19+, CD33+, CD56+, HLA-DR+. After 4 courses of post remission therapy, the maintenance therapy was discontinued because of his liver dysfunction. He was discharged on May, 1989, and was seen as an out patient. He complained of left hemiplegia and was re-admitted on September 30, 1989. Though the bone marrow was in complete remission on September 4th, CT scan and MRI demonstrated intracranial tumor formation. Bone marrow relapse occurred on October 27th, eventually resulting in his death on November 18th. Autopsy showed intracranial, testicular and intestinal tumor formation and blast cell invasion into the liver, spleen and kidneys. We analyzed the characteristics of 14 cases with intracranial tumor formation previously reported. The focal neurological symptoms reflecting the intracranial tumor mass effect were considered to be important initial signs. CT scan was a useful tool for diagnosis. The average age of the 14 cases was 38, 9 and the male/female ratio was 9:5. Six of 9 cases, diagnosed by FAB classification, were M2 and one of the 6 cases in whom chromosomes of blast cells were examined had t(8;21). Though irradiation seemed effective for the reduction of tumor mass, the patients' prognosis was poor.(ABSTRACT TRUNCATED AT 250 WORDS)

Antigens, CD↗
PubMed1993

[A "retinoic acid syndrome" observed in two cases of acute promyelocytic leukemia].

Two cases of acute promyelocytic leukemia (APL) treated with all-trans retinoic acid (ATRA) developed fever, dyspnea and chest pain. A chest roentgenogram showed bilateral pleural effusion (case 1) and bilateral interstitial infiltration (case 2). The first case was a 50-year-old female in her first relapse, who was initially diagnosed as having pleuritis tuberculosa and was treated with anti-tuberculotic agents. Her symptoms continued for 44 days and complete remission was achieved 53 days after commencing ATRA therapy. The second case was a previously untreated 46-year-old male. His case had been diagnosed as adult respiratory distress syndrome and he had been treated with prednisolone. His symptoms rapidly improved and complete remission was achieved 38 days after the ATRA therapy. This was the first report of patients in Japan considered to have developed "retinoic acid syndrome (RAS)". In our five APL cases treated with ATRA, the syndrome was not always accompanied by peripheral blood leukocytosis even though the two cases with RAS showed higher leukocyte counts than the other two cases without RAS and also had DIC. We should pay attention to the severe respiratory symptoms that develop in APL patients after ATRA treatment and immediate steroid therapy is required for such patients.

Adult↗
PubMed1993

[Surgical treatment of stage IVa thymoma].

The relationship between prognosis of the disease and the type of surgery were reviewed in 110 cases of thymoma. Surgical procedures were classified into four types: total resection (TR), subtotal resection (SR), partial resection (PR) and exploratory thoracotomy (ET), and the extent of the disease was expressed as stage I through IV based on Masaoka's classification. Ten-year survival rates for stage III and IVa diseases were 5 6.2% in TR, 37.9% in SR and 30.3% in PR. None of the patients in ET survived more than 28 months. Tumor death after surgery was not observed in TR. Two of three patients with stage IVa disease who underwent TR are alive without recurrence of the tumor at 37 months and 6 months after surgery. The pleuropneumonectomy was performed in the former case. One of four patients who underwent SR and one of three patients who underwent PR both with stage IVa disease are alive at 71 and 150 months after surgical intervention, respectively, in spite of the presence of the tumor relapse. In these patients, repeated chemotherapy and radiotherapy were administered following the resection of the primary lesion. In conclusion, it was indicated that the improvement of the survival rate could be obtained by resection the tumor as completely as possible in stage III and IVa thymoma, as long-term survival has been proved to be possible by macroscopically complete removal of the primary site and pleural disseminations followed by combined adjuvant therapy in patient with stage IVa disease.

Adolescent↗
PubMed1992

[All-trans retinoic acid induced a complete remission in a case of refractory relapsed acute promyelocytic leukemia].

Forty five year old male suffering from relapsed acute promyelocytic leukemia (APL) was treated with all-trans retinoic acid (ATRA) and attained second complete remission (CR) without bone marrow hypoplasia. He was diagnosed as having APL in September 1989. The DCMP-85 regimen first induced CR in October, however the disease relapsed in September 1990. The DCMP-85 and and the MEC (MIT, ETOP, Ara-C) regimens were applied for re-induction without success. Then, 45 mg/m2/day ATRA was given orally from December 28, 1990. Laboratory data before ATRA treatment were as follows; 35.4% leukemic cells in the bone marrow, Hb 11.0 g/dl, Plt 130,000/microliters, WBC 5,100/microliters without leukemic cells, and no DIC was detected. During the treatment, his bone marrow was examined frequently. The bone marrow series showed no hypoplasia at any time and gradual reduction of leukemic cells with proliferation of mature granulocytes. CR was attained on January 21, 1991. DIC did not develop. Cytogenetic anomalies including t(14;17;15) (q24;q11.2;q22) reduced from 29/30 cells at relapse to 4/30 cells at the time of CR. Dryness of mouth and lips, irritation around eyes and the elevations of GOT, GPT and triglyceride level were seen as the side effects of ATRA, however they were tolerable.

Humans↗
PubMed1990

The influence of the supernatant obtained from a culture of IL-2-activated lymphocytes on human hematopoietic progenitors.

A supernatant obtained from the culture of recombinant human interleukin 2-activated lymphocytes was added to granulocyte (G)-, macrophage (M)-, and granulocyte-macrophage (GM)-progenitor assays using a plasma clot culture method. The supernatant was found to exert a suppressive influence on the colony and cluster formations of the G progenitors. This suppressive influence of the supernatant was almost completely neutralized by the addition of a combination of anti-human tumor necrosis factor alpha (HuTNF-alpha) and anti-human interferon gamma (HuIFN-gamma) antibodies, and it has been speculated that this suppressive influence of the supernatant is probably due to TNF-alpha and IFN-gamma. The numbers of M and GM progenitors increased remarkably in the assays in which the supernatant was added when compared to assays without the supernatant; this suggests that these progenitors were resistant to TNF-alpha and IFN-gamma. Among the bone marrow mononuclear cells (BMNC) excluding erythroid-rosette-forming (ERFC) or adherent cells, the influence of the supernatant on these progenitors was not significantly different. The results of our study have shown that ERFC and the adherent cells in BMNC hardly affected the appearance of the suppressive influence.

Cells, Cultured↗
PubMed1990

[Acute lymphocytic leukemia having surface phenotype of CD 2 and NKH-1 with rapid clinical course].

Abnormal expansion of large granular lymphocytes (LGLs) was observed in peripheral blood and bone marrow in a 28-year-old man. He had general lymphadenopathy and splenomegaly. Surface phenotypical analysis of LGLs showed that these LGLs express CD 2, Ia and NKH-1 but not express CD 3, CD 4, CD 8 and Leu 7. Cytochemical analysis of these LGLs revealed positive acid phosphatase and beta-glucuronidase reaction but negative alpha-naphthyl acetate esterase reaction. These LGLs showed very weak NK activity against only MOLT-4 but showed no cytotoxic activity against K 562. An beta-receptor gene rearrangement of human T-cell receptor was not found by Southern blot analysis. Rapid and fetal clinical course with the results of theses analytical studies showed that this case is highly suggestive of acute leukemia of LGLs which is committed to NK cell lineage.

Adult↗
PubMed1990

[An erythremia with acquired HbH disease and chromosomal abnormality].

A 56-year-old male was admitted to the Nihon University Hospital because of general fatigue and anemia on September 21st, 1985. He had mild hepato-splenomegaly. Hematological findings showed RBC 286 x 10(4)/microliters, Hb 6.0/dl, reticulocyte count 2.5%, platelet count 9.3 x 10(4)/microliters and WBC 2,400/microliters. An erythroblast per 100 leukocytes counted in a blood film was found. Bone marrow was erythroid hyperplasia with megaloblasts. The erythroblasts were PAS positive but not ringed sideroblasts. Other laboratory data including hemolysis were all negative. This case seemed to be diagnosed as refractory anemia (RA) according to the FAB classification. Chromosomal analysis of marrow cells, however, all revealed 46, XY, 20q- at diagnosis and 46, XY, 7q- 20q- after 22 months. Furthermore, Hb electrophoresis ahd family study indicated the presence of acquired HbH disease. Neither erythroid bursts (BFU-e) nor late erythroid progenitors (CFU-e) were detected. He has had progressive anemia without proliferation of blasts for over 2 years. From these findings, we postulate that the entity of erythremia should be distinguished from RA including many heterogeneous diseases.

Chromosome Deletion↗