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Nagai S, Fujimoto Y, Kamei H, Nakamura T, Kiuchi T. Mild hepatic macrovesicular steatosis may be a risk factor for hyperbilirubinaemia in living liver donors following right hepatectomy. Br J Surg 2009; 96:437-44. [DOI: 10.1002/bjs.6479] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
Background
The aim of this study was to evaluate the effects of mild macrovesicular steatosis on the outcome of living liver donors following right hepatectomy.
Methods
The medical records of 46 living liver donors who underwent right hepatectomy were studied. Ten donors had mild macrovesicular steatosis (5–10 per cent in seven and 11–20 per cent in three patients). Five donors with other liver pathology were excluded. Outcome in these ten donors (group 1) was compared with that in the remaining 31 donors with normal liver histology (group 2).
Results
The median duration until normalization of total bilirubin levels was 14 and 5 days in groups 1 and 2 respectively (P = 0·028). The peak total bilirubin level was significantly higher in group 1 than in group 2 (80·4 versus 49·6 µmol/l; P = 0·033). Multivariable analysis showed mild macrovesicular steatosis to be an independent risk factor for hyperbilirubinaemia (odds ratio 7·94 (95 per cent confidence interval 1·17 to 54·03); P = 0·034).
Conclusion
Mild macrovesicular steatosis may be related to adverse outcome in living liver donors who undergo right hepatectomy and, in terms of donor safety, is of potential concern in donor selection.
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Hayami H, Yamaguchi O, Yamada H, Nagai S, Ohama S, Sakurai A, Sugawara Y. Effect of hydrocortisone therapy on outcome and the incidence of infection in patients with septic shock. Crit Care 2009. [PMCID: PMC4084211 DOI: 10.1186/cc7489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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53
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Hamada H, Hayashi N, Kurimoto M, Umemura K, Nagai S, Kurosaki K, Kuwayama N, Endo S. Neuroendoscopic Removal of Intraventricular Hemorrhage Combined with Hydrocephalus. ACTA ACUST UNITED AC 2008; 51:345-9. [DOI: 10.1055/s-0028-1085449] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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54
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Hayashi N, Kurimoto M, Nagai S, Sato H, Hori S, Endo S. Tentorial Incision in a Lateral-medial Direction with Minimal Retraction of the Temporal Lobe in the Subtemporal Transtentorial Approach to the Middle Tentorial Incisural Space. ACTA ACUST UNITED AC 2008; 51:340-4. [DOI: 10.1055/s-0028-1085452] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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55
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Seki N, Kobayashi T, Tamura M, Araki O, Karube Y, Umezu H, Ishihama H, Nagai S, Chida M, Miyoshi S. [Bronchoplasty and pulmonary arterioplasty for treatment of lung cancer]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2008; 61:968-971. [PMID: 18939434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE We evaluated the outcomes of bronchoplasty (BP) and pulmonary arterioplasty (PAP) for treatment of patients with lung cancer. SUBJECTS We studied 33 patients who underwent BP and/or PAP over the previous 7 years at our institution. METHODS A telescope procedure was utilized for anastomosis of a tubular excision performed in the bronchus. One patient received induction chemoradiotherapy, in whom the anastomosis section was covered with an intercostal muscle flap to assure anastomosis completion, then PAP was performed under heparinization. RESULTS BP including a sleeve resection was performed in 15 patients, while that with a wedge resection and partial side wall resection was performed in 7 and 1 patient, respectively. PAP was performed in 18 patients, and a combination of BP and PAP was used in 8. The seam was incomplete in 2 patients and stenosis was recognized in the anastomosis section in 1. No local recurrence at the anastomosis site was seen in any of the 33 cases. The survival rate for patients who underwent BP was similar to that of those who underwent a standard resection for primary lung cancer. CONCLUSION Our results indicate that BP and PAP are safe and useful surgical procedures for patients with lung cancer.
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Minami H, Mukohara T, Nagai S, Mukai H, Namiki M. 446 POSTER A phase I study of eribulin mesylate (E7389) in patients with refractory cancers. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72380-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Nagai S, Handa T, Kim DS. Pharmacotherapy in patients with idiopathic pulmonary fibrosis. Expert Opin Pharmacother 2008; 9:1909-25. [DOI: 10.1517/14656566.9.11.1909] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Iwakiri S, Sonobe M, Nagai S, Takahashi T, Mino N, Miyahara R, Wada H, Date H. Expression of CXCR7 in p-stage I non-small cell lung cancer increases the risk for postoperative recurrence at the distant site and correlates with poor disease free survival. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71780-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Kawabata Y, Takemura T, Hebisawa A, Ogura T, Yamaguchi T, Kuriyama T, Nagai S, Sakatani M, Chida K, Sakai F, Park J, Colby TV. Eosinophilia in bronchoalveolar lavage fluid and architectural destruction are features of desquamative interstitial pneumonia. Histopathology 2008; 52:194-202. [PMID: 18184268 DOI: 10.1111/j.1365-2559.2007.02930.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS Desquamative interstitial pneumonia (DIP) is a rare pattern of diffuse parenchymal lung disease known to overlap with respiratory bronchiolitis-interstitial lung disease (RB-ILD). The aim was to review biopsy-proven cases of DIP to investigate further the clinical, imaging and histological features of this disease. METHODS AND RESULTS Twenty patients fulfilled the pathological criteria: 19 men and one woman with a mean age of 54 years. Clinical features, bronchoalveolar lavage (BAL) data, radiological findings, pathological findings other than criteria, effect of therapy and outcome were examined. The BAL data for 17 cases revealed marked eosinophilia (mean 18%) and moderate neutrophilia (mean 11%). Computed tomography in 17 patients showed peripheral involvement in all cases with a clear margin in 64% and thin-walled cysts in 35% of cases. Additional pathological features were a distinct lobular distribution (70%) and architectural destruction (70%) with cyst formation (55%). Eighteen of the 19 patients (95%) improved under steroid pulse and/or oral therapy. Sixteen subjects (80%) are alive, three died of other diseases and one died of DIP 74 months after the diagnosis. Percent vital capacity increased significantly and new thin-walled cysts appeared in one case. CONCLUSIONS BAL eosinophilia, lobular distribution and architectural destruction with cyst formation are characteristic features of DIP.
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Hayami H, Yamaguchi O, Yamada H, Nagai S, Oohama S, Sugawara Y, Sakurai A. Early introduction of enteral feeding for patients with percutaneous cardiopulmonary support. Crit Care 2008. [PMCID: PMC4088513 DOI: 10.1186/cc6363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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61
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Takahashi Y, Takano K, Suzuki M, Nagai S, Yokosuka M, Takeshita T, Saito A, Yasueda H, Enomoto T. Two routes for pollen entering indoors: ventilation and clothes. J Investig Allergol Clin Immunol 2008; 18:382-388. [PMID: 18973103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND The route by which pollen enters dwellings has not been clarified. OBJECTIVE To evaluate the amount of pollen entering dwellings by ventilation and adhesion to textile products. METHODS The amount of pollen clinging to fabrics (clothes, laundry, and futon bedding) out of doors was measured by quantification of Japanese cedar pollen antigen Cry j 1. The effect of air ventilation on the amount of pollen indoors was also investigated using several neighboring unoccupied apartments with an identical layout while controlling the ventilation conditions. RESULTS The amount of pollen adhering to futons was especially high. More than half of the pollen on futons or laundry remained on the surface, even after being brushed off by hand or shaken off. Vacuuming laundry and futons after airing out would be an effective way to decrease the amount of indoor pollen. A large amount of pollen entered dwellings through air ducts when the windows were closed and the ventilation fans working. Since most pollen that entered by ventilation remained near the windows, cleaning carefully and frequently near windows could reduce the amount of pollen indoors. CONCLUSIONS To decrease the amount of pollen indoors, special attention must be paid to textile products and ventilation systems during the pollen season.
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Hattori H, Mibe J, Matsuoka H, Nagai S, Yamamoto K. Surgical management of metastatic disease of the proximal femur. J Orthop Surg (Hong Kong) 2007; 15:295-8. [PMID: 18162673 DOI: 10.1177/230949900701500310] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE To review the surgical treatment for metastatic disease of the proximal femur. METHODS Records of 8 patients who underwent endoprosthetic replacement with tumour resection (group 1) and 8 others who underwent intramedullary nailing without tumour resection (group 2) were reviewed. Treatments were based on the disease progression and patient's condition. RESULTS In groups 1 and 2, the respective mean survival periods were 16 and 4 months. All patients in group 1 regained preoperative mobility, but only one patient in group 2 was able to walk with crutches. CONCLUSION This was a retrospective, rather than comparative study of endoprothetic replacement and intramedullary nailing for metastatic disease of the proximal femur. Both procedures are considered palliative, and not curative. The longer survival period in group 1 was mainly due to selection of patients with better preoperative medical status.
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Nagai S, Kazama S, Yagihashi T. Ribotyping ofMycoplasma gallisepticumstrains with a 16S ribosomal RNA gene probe. Avian Pathol 2007; 24:633-42. [DOI: 10.1080/03079459508419103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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64
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Hayakawa Y, Kurimoto M, Nagai S, Kurosaki K, Tsuboi Y, Hamada H, Hayashi N, Endo S. Thrombin-induced cell proliferation and platelet-derived growth factor-AB release from A172 human glioblastoma cells. J Thromb Haemost 2007; 5:2219-26. [PMID: 17958740 DOI: 10.1111/j.1538-7836.2007.02739.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND In a previous study, we found that thrombin induced proliferation of TM-1 and T98G human glioma cells and that the mitogenic effect was abolished by hirudin. OBJECTIVES We investigated thrombin's effects on the proliferation of A172 human glioblastoma cells and the induction of growth factors. Furthermore, we examined whether or not the expression of heparin cofactor II (HCII) in A172 cells using adenovirus vector could suppress thrombin's effects. METHODS The effect of thrombin on cell proliferation was assessed using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay. The amount of growth factors in the conditioned medium was measured by enzyme-linked immunosorbent assay. The level of platelet-derived growth factor (PDGF)-B mRNA was assessed by reverse transcriptase-polymerase chain reaction analysis. RESULTS Thrombin-induced proliferation of A172 cells primarily depended on the enhanced secretion of PDGF-AB by thrombin. The action of thrombin depended on its proteolytic activity. However, thrombin-induced PDGF-AB secretion was not abolished by anti-protease-activated receptor (PAR) antibody. The PAR-1 agonist peptide had no effect on cell growth and PDGF-AB levels. Thrombin did not increase PDGF-B gene expression. Expression of HCII effectively suppressed thrombin-induced PDGF-AB release. CONCLUSIONS These results indicate that thrombin may play an important role in the proliferation of A172 cells by inducing PDGF-AB secretion and that thrombin's action is mediated by its proteolytic activity. Inhibition of thrombin's proteolytic activity may be a new therapeutic method for gliomas.
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Hayashi N, Kurimoto M, Kubo M, Kuwayama N, Kurosaki K, Nagai S, Endo S. The impact of cavernous sinus drainage pattern on the results of venous sampling in patients with suspected cushing syndrome. AJNR Am J Neuroradiol 2007; 29:69-72. [PMID: 17925372 DOI: 10.3174/ajnr.a0745] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Selective venous sampling from the posterior portion of the cavernous sinus (CS) is recommended for the diagnosis of Cushing disease, because samples from the posterior portion yield higher adrenocorticotropic hormone (ACTH) levels than those from the anterior and middle portions. We prospectively assessed this intracavernous gradient of ACTH level to determine which site in the CS yields adequate sampling. MATERIALS AND METHODS In 5 patients with Cushing syndrome, cavernous sinography was performed to assess drainage pattern of the CS. Sampling was performed from the anterior, middle, and posterior parts of the CS, inferior petrosal sinus (IPS), and the peripheral vein. The ratio of the concentration in CS and IPS to that in peripheral blood plasma (C/P ratio) was calculated. RESULTS Cavernous sinography showed that the main drainage route was the IPS in 6 sides and that the pterygoid plexus (PP) was developed to the same extent as the IPS in 3 sides. In 1 patient, the CS drained mainly to the PP. In 1 patient with an ectopic lesion, no increase in ACTH level was detected. In 3 of 4 patients with Cushing disease, the highest C/P ratio was obtained from the posterior portion. In 1 patient whose main drainage route was the PP, the highest C/P ratio was obtained from the anterior portion. In this case, sampling data from the posterior portion and the IPS yielded false-negative results. CONCLUSION Understanding the drainage patterns of the CS is essential for interpretation of sampling data from the CS and avoiding false-negative results.
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Sato H, Nagai S, du Bois RM, Handa T, Suginoshita Y, Ohta K, Welsh KI, Izumi T. HLA-DQB1 0602 allele is associated with splenomegaly in Japanese sarcoidosis. J Intern Med 2007; 262:449-57. [PMID: 17875181 DOI: 10.1111/j.1365-2796.2007.01829.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The association between HLA class II alleles and susceptibility to sarcoidosis is well documented. Further, the HLA-DRB1 15 and DQB1 0602 haplotype has been considered as a marker for both chronic and severe disease. Splenomegaly has been proposed as a marker for severity and activity in sarcoidosis, although its functional mechanism is unknown. In other diseases, HLA class II alleles can be markers for splenomegaly. We therefore set out to test the hypothesis that the primary DRB1 15-DQB1 0602 link in sarcoidosis would be to splenomegaly. DESIGN AND SUBJECTS We performed abdominal ultrasonography to evaluate the prevalence and extent of splenomegaly and genotyped for HLA-DRB1 and DQB1 using allele or allele group specific primers in polymerase-chain-reaction on 138 Japanese sarcoidosis patients as case comparison study. Furthermore, we explored their relationship with other clinically important indices, e.g. chest radiograph stage, serum angiotensin-converting enzyme (ACE) concentration and duration of disease. RESULTS Splenomegaly was detected in 37 (26.8%) sarcoidosis patients. DQB1 0602 showed associations with splenomegaly (P < 0.0001) and longer disease duration (P = 0.007). In addition, higher chest radiograph staging was associated with both DQB1 0602 (P = 0.02) and splenomegaly (P = 0.003). The presence of splenomegaly was associated with higher serum ACE concentration (P < 0.0001). CONCLUSION We conclude that in the Japanese population the primary association of HLA class II DQB1 0602 is with splenomegaly. This allele is also a marker for chronicity and lung disease severity. On the other hand, the presence of splenomegaly is a marker for severity and activity. Further studies are needed to explore the relationship between splenomegaly and sarcoidosis in other ethnic groups and its association with HLA-DQB1 0602.
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Menju T, Sonobe M, Nagai S, Ogawa E, Takahashi T, Wada H. 6540 POSTER p53 gene mutation, mrna expression, aberrant protein expression and clinicopathological features in resected non-small cell lung cancer. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71368-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Ishizuka M, Nagai S, Sakamoto KQ, Fujita S. Plasma pharmacokinetics and CYP3A12-dependent metabolism of c-kit inhibitor imatinib in dogs. Xenobiotica 2007; 37:503-13. [PMID: 17523053 DOI: 10.1080/00498250600962849] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Imatinib is a highly selective tyrosine kinase inhibitor, and is used for the treatment of chronic myeloid leukaemia (CML) and gastrointestinal stromal tumours (GISTs) in humans. The aim of this study is to determine the in vitro and in vivo pharmacokinetics of imatinib in dogs and which cytochrome P450 (CYPs) contribute to its metabolism. Imatinib was administered orally or intravenously to dogs and the time of the peak concentration (T(max)) of imatinib was 4-9 h. The mean half-life was 622 +/- 368 min, and the AUC was 1256 +/- 809 microM * min after oral administration. The range of C0 of intravenously injected dogs was 12-24 microM. The half-life and AUC after intravenous injection were 206 +/- 112 min and 1026 +/- 371 microM * min, respectively. Recombinant system of dog CYP3A12 and CYP2C21 showed that CYP3A12 contributed to the metabolism of imatinib. The inhibition of CYP3A-dependent activity using a rat anti-CYP3A antibody or ketoconazole revealed that CYP3A12 plays a major role in the metabolism of imatinib in dog liver microsomes.
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Nakamura A, Shimizu C, Nagai S, Taniguchi S, Umetsu M, Atsumi T, Wada N, Yoshioka N, Ono Y, Sasano H, Koike T. Unilateral adrenalectomy improves insulin resistance and polycystic ovaries in a middle-aged woman with virilizing adrenocortical adenoma complicated with Cushing's syndrome. J Endocrinol Invest 2007; 30:65-9. [PMID: 17318025 DOI: 10.1007/bf03347398] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
A benign virilizing adrenal adenoma is rare among adrenal neoplasms in middle-aged women. A 39-yr-old Japanese woman who presented with hirsutism, obesity, diabetes mellitus and hypertension was admitted. Plasma concentrations of testosterone and DHEAS were high. While the basal level of plasma ACTH was suppressed, serum cortisol level was high and its circadian rhythm was absent. Serum cortisol level was not suppressed with the low- and high-dose overnight dexamethasone suppression test. Abdominal computed tomography showed a left adrenal tumor, and an adrenocortical scintigraphy revealed uptake of the tracer on the left side. Polycystic ovaries were also found and bone mineral density revealed osteoporosis. Histopathological features of resected adrenal tumor were consistent with those of adrenocortical adenoma. Immunoreactivity of all the steroidogenic enzymes was apparent in the tumor cells and particularly dehydroepiandrosterone sulfotransferase (DHEA-ST) immunoreactivity was markedly expressed. Cortical atrophy and reduced expression of DHEA-ST were detected in the cortex of the adjacent non-neoplastic adrenal gland. Plasma testosterone, DHEAS and cortisol levels returned to normal after surgery, concomitantly with the disappearance of polycystic ovaries. This is a very rare case of virilizing adrenocortical adenoma complicated with Cushing's syndrome (CS).
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Nagai S, Shimizu C, Kimura Y, Umetsu M, Taniguchi S, Takeuchi J, Atsumi T, Yoshioka N, Kubo M, Koike T. A case of reversed pituitary dysfunction with intrasellar mass. J Endocrinol Invest 2006; 29:367-72. [PMID: 16699306 DOI: 10.1007/bf03344111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hypopituitarism can be caused by tumor, inflammation, granuloma and injuries. Once pituitary function is disturbed, hormone replacement therapy is necessary for the remaining life span in most cases. We have experienced a rare case of a unique intrasellar mass associated with pituitary dysfunction in which both spontaneously reversed. A 61-yr-old woman developed hypoadrenalism and central diabetes insipidus (cDI). Magnetic resonance (MR) imaging revealed a lobular, strong hypointense lesion with spotty signal in the middle of the hypophysis. This spotty lesion showed isointensity on T1- and high-intensity on T2-weighted MR images. The spotty signal as well as the normal pituitary lobe were enhanced by the administration of gadolinium. As replacement therapies for hypoadrenalism and cDI, 10 mg of hydrocortisone and 2.5 microg of desmopressin acetate were prescribed. Three months later, slight shrinkage of intrasellar mass and spontaneous improvement of pituitary functions were found. Hydrocortisone was then discontinued. Furthermore, because polyuria and polydipsia were improved nine months later, desmopressin acetate was stopped. Currently, the intrasellar mass continues to shrink, and the patient shows no symptoms without medication. Based upon the unique features of MR images, we suspect that the origin of the mass is an intrasellar hemangioma.
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Asoh S, Mori T, Nagai S, Yamagata K, Nishimaki K, Miyato Y, Shidara Y, Ohta S. Zonal necrosis prevented by transduction of the artificial anti-death FNK protein. Cell Death Differ 2005; 12:384-94. [PMID: 15692606 DOI: 10.1038/sj.cdd.4401569] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Protection of cells from necrosis would be important for many medical applications. Here, we show protein transduction domain (PTD)-FNK therapeutics based on protein transduction to prevent necrosis and acute hepatic injury with zonal death induced by carbon tetrachloride (CCl4). PTD-FNK is a fusion protein comprising the HIV/Tat PTD and FNK, a gain-of-function mutant of anti-apoptotic Bcl-x(L). PTD-FNK protected hepatoma HepG2 from necrotic death induced by CCl4, and additionally, increased the apoptotic population among cells treated with CCl4. A concomitant treatment with a pan-caspase inhibitor Z-VAD-FMK (N-benzyloxycarbonyl-Val-Ala-Asp-fluoromethylketone), which alone could not prevent the necrosis, protected these cells from the apoptosis. When pre-injected intraperitoneally, PTD-FNK markedly reduced zonal liver necrosis caused by CCl4. Moreover, injection of PTD-FNK accompanied by Z-VAD-FMK suppressed necrotic injury even after CCl4 administration. These results suggest that PTD-FNK has great potential for clinical applications to prevent cell death, whether from apoptosis or necrosis, and organ failure.
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Nakamura A, Shimizu C, Nagai S, Taniguchi S, Umetsu M, Atsumi T, Yoshioka N, Ono Y, Tajima T, Kubo M, Koike T. A rare case of Gitelman's syndrome presenting with hypocalcemia and osteopenia. J Endocrinol Invest 2005; 28:464-8. [PMID: 16075932 DOI: 10.1007/bf03347229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gitelman's syndrome (GS), an autosomal recessive disorder caused by a defect of the thiazide-sensitive Na-Cl cotransporter (TSC) at the distal tubule, is characterized by hyperreninemic hyperaldosteronism with normal or low blood pressure, hypokalemia, metabolic alkalosis, hypomagnesemia and hypocalciuria. An 18-yr-old Japanese man was admitted to our hospital with a history of muscle weakness and transient tetanic episodes. He showed hypocalcemia in addition to hypokalemia, severe hypomagnesemia, hypocalciuria and hyperreninemic hyperaldosteronism with normal blood pressure. Furthermore, bone mineral density at the lumbar spine revealed osteopenia. A diagnosis of GS was made on the basis of clinical features, laboratory data and renal function test. The electrolyte imbalance was corrected and bone mineral density was slightly increased with chronic treatment of magnesium and potassium salts. Genetic analysis revealed that TSC gene of the patient has a heterozygous C to A nucleotide substitution at position 545 in exon 4, which causes a threonine (Thr) to lysine (Lys) substitution at position 180. This is a rare case of GS with hypocalcemia and osteopenia which could be caused by severe hypomagnesemia.
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Yamashita S, Haga Y, Nemoto E, Nagai S, Ohta M. E-PASS (The Estimation of Physiologic Ability and Surgical Stress) scoring system helps the prediction of postoperative morbidity and mortality in thoracic surgery. Eur Surg Res 2005; 36:249-55. [PMID: 15263831 DOI: 10.1159/000078860] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2003] [Accepted: 04/08/2004] [Indexed: 11/19/2022]
Abstract
OBJECTIVE When a new scoring system, 'E-PASS', standing for the Estimation of Physiologic Ability and Surgical Stress that predicts the postoperative surgical risk by quantification of the patient's reserve and surgical stress applied to a population of general thoracic surgery patients, it should be investigated if this system could help us or not. METHODS The comprehensive risk score (CRS) of the E-PASS and the clinical course were evaluated retrospectively in 282 consecutive patients with primary lung cancer (group A), and in 458 patients who underwent elective thoracic operations (group B). RESULTS The morbidity and mortality rates in both group A and group B increased as the CRS increased. The CRS correlated significantly with the morbidity score, length of stay and cost of hospitalization. CONCLUSIONS E-PASS scoring system may be useful in surgical decision-making and evaluating quality of care in patients who are tolerable for lung resection.
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Maruta M, Kanda T, Nagai S, Yamamoto Y. New High-rise RC Structure Using Pre-cast ECC Coupling Beam. ACTA ACUST UNITED AC 2005. [DOI: 10.3151/coj1975.43.11_18] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Asakura A, Miyaji A, Hayami H, Yamaguchi O, Oki H, Nagai S, Kokawa A, Akita K, Oi Y. Crit Care 2005; 9:P352. [DOI: 10.1186/cc3415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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