201
|
Miyagi S, Sekiguchi S, Kawagishi N, Akamatsu Y, Satoh K, Takeda I, Fujimori K, Satomi S. Nonmarginal-Donor Duodenal Ulcers Caused by Rejection After Simultaneous Pancreas and Kidney Transplantation: A Case Report. Transplant Proc 2011; 43:3292-5. [DOI: 10.1016/j.transproceed.2011.09.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
202
|
Soeda S, Mathuda N, Hashimoto Y, Yamada H, Fujimori K. Non-bacterial thrombotic endocarditis with systemic embolic events caused by adenomyosis. J Obstet Gynaecol Res 2011; 37:1838-41. [PMID: 21827568 DOI: 10.1111/j.1447-0756.2011.01617.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Non-bacterial thrombotic endocarditis is caused by a hypercoagulable state that is sometimes related to malignancy and this type of endocarditis associated with benign tumors has not yet been reported. In this study we report the first case of non-bacterial thrombotic endocarditis caused by adenomyosis, which is a benign gynecological condition.
Collapse
Affiliation(s)
- Shu Soeda
- Departments of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima, Japan.
| | | | | | | | | |
Collapse
|
203
|
Yasumura S, Hashimoto K, Hoshoya M, Fujimori K, Wakagi Y. SP3-34 The overview and prospects of "Japan Eco & Child Study" in Fukushima. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
204
|
Kumagami A, Ito A, Yoshida-Komiya H, Fujimori K, Sato A. Expression patterns of the steroid receptor coactivator family in human ovarian endometriosis. J Obstet Gynaecol Res 2011; 37:1269-76. [DOI: 10.1111/j.1447-0756.2010.01509.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
205
|
Imamura T, Sato M, Hashimoto K, Ishii T, Goto A, Go H, Kawarada T, Kawasaki Y, Momoi N, Ujiie N, Fujimori K, Hosoya M. Glucocorticoid receptor expression and cortisol level in cord blood of term infants. J Matern Fetal Neonatal Med 2011; 24:1312-6. [PMID: 21381879 DOI: 10.3109/14767058.2010.548885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To examine the expression levels of glucocorticoid receptor (GR) isoforms in peripheral blood mononuclear cells (PBMCs) and serum cortisol levels in cord blood from term infants. METHODS The study population consisted of 172 term infants who were delivered from healthy pregnant women. GRalpha and GRbeta expression levels, and serum cortisol level in cord blood were determined by real-time PCR and ELISA, respectively. RESULTS Detection rates of GRalpha, GRbeta, and GAPDH were 100%, 63.4%, and 100%, respectively. The expression level of GRalpha was about 200 times that of GRbeta. There were no associations between GR expression level and clinical variables. There were significant associations of low UmApH, maternal gravidity or parity, and vaginal delivery with a high cortisol level; however, there were no correlations between GR expression levels and cortisol level. CONCLUSIONS It is considered that glucocorticoid effects could be expected from the fetal period to the neonatal period, because GRalpha expression level was not related to perinatal factors, GRbeta expression level, and cortisol level in term infants. Further studies of larger populations including very preterm and small for gestational age infants are necessary to determine the balance of expression between GRalpha and GRbeta, and cortisol level.
Collapse
Affiliation(s)
- Takashi Imamura
- Department of Pediatrics, Fukushima Medical University School of Medicine, Fukushima City, Fukushima, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
206
|
Goto M, Imura T, Inagaki A, Ogawa N, Yamaya H, Fujimori K, Kurokawa Y, Satomi S. The impact of ischemic stress on the quality of isolated pancreatic islets. Transplant Proc 2011; 42:2040-2. [PMID: 20692402 DOI: 10.1016/j.transproceed.2010.05.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Although the ischemic stress of donated organs has been shown to have strong negative effects on islet recovery, the impact on islet quality remains uncertain. In the present study, therefore, we examined the influence of ischemic stress on the expression of inflammatory mediators among isolated islets. MATERIALS AND METHODS Islets were isolated from adult porcine pancreata subjected to 16-hour cold ischemia time (CIT) in addition to 40-minute warm ischemia time (WIT). We evaluated the islet yield, islet loss during the first 24 hours in culture, adenosine diphosphate (ADP)/adenosine triphosphate (ATP) ratio, ATP/DNA ratio, glucose-stimulated respiratory activity, in vivo bioassay, and the expression of inflammatory mediators (tissue factor [TF], [MCP-1], macrophage migration inhibitory factor) on the isolated islets. We also analyzed ATP/DNA ratios of the exocrine tissues during isolation procedures. RESULTS The islet yield, survival rate during culture, and glucose-stimulated respiratory activity were significantly lower in cases of 16-hour CIT plus 40-minute WIT compared with the control group (P < .0001, .0006, and .002, respectively). In contrast, ADP/ATP ratio as well as TF and MCP-1 expressions on the isolated islets were higher among the ischemic group (P = .005, .16, and .005, respectively). During isolation procedures, the ATP/DNA of the exocrine tissues was extremely lower in the ischemic compared to the control group (P < .0001). Notably, however, both ATP/DNA and ADP/ATP ratio of isolated islets were well preserved even in the ischemic group (P = .45 and .40). DISCUSSION These data suggest that ischemic stress during the preservation period negatively affects the energy status of exocrine tissues. Destruction of the exocrine tissues, in combination with warm ischemic stress during the isolation procedures, subsequently decreases isolated islet activity, inducing the expression of inflammatory mediators.
Collapse
Affiliation(s)
- M Goto
- Tohoku University International Advanced Research and Education Organization, Tohoku University, Sendai, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
207
|
Yazawa H, Endo S, Hayashi S, Suzuki S, Ito A, Fujimori K. Spontaneous uterine rupture in the 33rd week of IVF pregnancy after laparoscopically assisted enucleation of uterine adenomatoid tumor. J Obstet Gynaecol Res 2011; 37:452-7. [DOI: 10.1111/j.1447-0756.2010.01361.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
208
|
Fukushima D, Doi H, Fukushima K, Katsura K, Ogawa N, Sekiguchi S, Fujimori K, Sato A, Satomi S, Ishida K, Fukushima K. Glutamate exocrine dynamics augmented by plasma glutamine and the distribution of amino acid transporters of the rat pancreas. J Physiol Pharmacol 2010; 61:265-271. [PMID: 20610855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Accepted: 05/25/2010] [Indexed: 05/29/2023]
Abstract
The nutritional and physiological roles of amino acid (AA)s have been investigated for individual organs. In the current study, we focused on the dynamics of glutamate and transport systems in the pancreas. We employed original procedures to obtain rat pancreatic juice (PJ) subjected to intravenous administration of alanyl-glutamine (AG) for AA analysis. The pancreatic expressions of the transporters were evaluated by immunohistochemistry. We found that glutamate was secreted into the PJ in the basal state. The intravenous administration of AG increased the concentration and total amount of glutamate excreted into the PJ. In terms of the transport systems, L-type AA transporter (LAT1) was identified exclusively in the islet cells. Glutamate transporter 1 (GLT1), glutamate-aspartate transporter (GLAST), vesicular glutamate transporter 1 (VGUT1) and cystine/glutamic acid transporter (xCT) were found in the islet cells. xCT was identified in the duct cells as well, but was not accompanied by the expression of 4F2 heavy chain (4F2hc) staining in the islets and the acinar cells, similar to neutral AA transporter (ASCT2) or b0,+-type AA transporter 1(BAT1). Excitatory AA transporter (EAAC) was identified only in the acinar cells. Glutamate was exclusively found in the acinar cells. We revealed the novel dynamics of glutamate in the rat PJ. The glutamate secretion into the PJ was augmented by plasma glutamine, indicating the de novo metabolisms of glutamate, together with the local expression of the related transporters.
Collapse
Affiliation(s)
- D Fukushima
- Advanced Surgical Science and Technology Division, Department of Surgery, Graduate School of Medicine, University of Tohoku, Sendai, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
209
|
Ohto H, Ishii T, Kitazawa J, Sugiyama S, Ujiie N, Fujimori K, Ariga H, Satoh T, Nollet KE, Okamoto H, Hoshi T. Declining hepatitis C virus (HCV) prevalence in pregnant women: impact of anti-HCV screening of donated blood. Transfusion 2009; 50:693-700. [PMID: 19912584 DOI: 10.1111/j.1537-2995.2009.02487.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Screening blood donors for hepatitis C virus (HCV) antibody has effectively mitigated transfusion transmission of HCV. We conducted a post hoc analysis to clarify the impact of donor screening on a general population of reproductive-age females and their offspring. STUDY DESIGN AND METHODS Anti-HCV screening in Japan started in late-1989. In a cohort studied between May 1990 and November 2004, a total of 22,664 consecutive serum samples from pregnant women were screened for anti-HCV. Reactive samples were further tested for HCV RNA. Linear structural regression was applied to identify causal relationships. RESULTS Anti-HCV-reactive rates declined significantly by two measures. First, among women known to have been transfused, rates fell from 14.8% to 3.1% with the implementation of anti-HCV screening (p < 0.01). Nevertheless, this is 10 times higher than the 0.3% reactive rate seen in a similar cohort of nontransfused women. Second, rates fell from 1.8% among women born in 1955 or before to 0.3% for women born in 1966 or later (p < 0.01). Among 103 anti-HCV-reactive women, 31 (30%) had been transfused and another 17 (17%) had other identifiable risk factors. The remaining 55 (53%) had no clear risk factor. Blood transfusion accounted for 19% of anti-HCV acquisition, by path analysis. Only one infant in this cohort was vertically infected with HCV. CONCLUSION Anti-HCV screening of donated blood and hygienic improvements have markedly decreased HCV infection of pregnant women with a transfusion history; however, 70% of anti-HCV-reactive women were deemed to be infected via routes other than transfusion.
Collapse
Affiliation(s)
- Hitoshi Ohto
- Division of Blood Transfusion and Transplantation Immunology, Fukushima Medical University Hospital, Fukushima, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
210
|
|
211
|
Sato K, Sekiguchi S, Watanabe T, Enomoto Y, Akamastu Y, Kawagishi N, Miyagi S, Takeda I, Sato A, Fujimori K, Satomi S. The use of recipient superficial femoral vein as a venous graft for portal vein reconstruction in right lobe living donor liver transplantation. Transplant Proc 2009; 41:195-7. [PMID: 19249512 DOI: 10.1016/j.transproceed.2008.08.157] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Accepted: 08/14/2008] [Indexed: 10/21/2022]
Abstract
In living donor liver transplantation (LDLT), portal vein thrombosis (PVT) in the recipient is frequently regarded as a contraindication. To reconstruct the PV of a right-lobe liver graft (RLG) using an interposition or jump graft from the splenomesenteric junction, various vein grafts and technical modifications have been introduced. The internal jugular, external iliac, or great saphenous veins have been utilized in such reconstructive procedures. However, the superficial femoral vein (SFV) is preferable to the autologous vein grafts in terms of caliber, wall thickness, and length. We employed the recipient SFV to reconstruct PVT among 40 adult LDLT using RLG. Thirty-three were reconstructed by single end-to-end anastomosis with the right or left recipient PV. Three patients were transplanted with a RLG using 2 separated PVs reconstructed by double anastomoses with both the right and left PVs of the recipient. The remaining 4 patients required venous grafting for portal reconstruction. We used the recipient SFV as an interposition or jump graft from the splenomesenteric junction to the graft PV. There were 2 cases of anastomotic PV stenosis; 1 in portal reconstruction without a venous graft and the other with a SFV graft. Both were treated successfully by balloon angioplasty. The recipient SFV is an excellent size match for the PV reconstruction as a long interposition or jump conduit when the venous system from the deceased donor is not available. The indication for LDLT in patients with complete PVT should be carefully decided before transplantation in terms of portal reconstruction.
Collapse
Affiliation(s)
- K Sato
- Department of Advanced Surgical and Technology, Tohoku University School of Medicine, Sendai, Aobaku, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
212
|
Saito Y, Goto M, Maya K, Ogawa N, Fujimori K, Kurokawa Y, Satomi S. The Influence of Brain Death on Tissue Factor Expression in the Pancreatic Tissues and Isolated Islets in Rats. Transplant Proc 2009; 41:307-10. [DOI: 10.1016/j.transproceed.2008.10.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Revised: 09/11/2008] [Accepted: 10/15/2008] [Indexed: 10/21/2022]
|
213
|
Takahashi H, Goto M, Ogawa N, Saito Y, Fujimori K, Kurokawa Y, Doi H, Satomi S. Superiority of Fresh Islets Compared With Cultured Islets. Transplant Proc 2009; 41:350-1. [DOI: 10.1016/j.transproceed.2008.08.143] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2008] [Accepted: 08/06/2008] [Indexed: 10/21/2022]
|
214
|
Sato K, Iwane T, Sekiguchi S, Nakamura A, Akamatsu Y, Kawagishi N, Miyagi S, Takeda I, Sato A, Fujimori K, Satomi S. Management of Living Donor Liver Transplant Patients Using Twice-Daily 4-Hour Intravenous Cyclosporine Therapy. Transplant Proc 2009; 41:229-32. [DOI: 10.1016/j.transproceed.2008.08.158] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Accepted: 08/14/2008] [Indexed: 11/26/2022]
|
215
|
Tokodai K, Goto M, Imura T, Ogawa N, Fujimori K, Kurokawa Y, Okada H, Satomi S. C5a Inhibitory Peptide Combined With Gabexate Mesilate Is a Clinically Available Candidate for Preventing the Instant Blood-Mediated Inflammatory Reaction. Transplant Proc 2009; 41:67-8. [DOI: 10.1016/j.transproceed.2008.10.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2008] [Accepted: 10/29/2008] [Indexed: 11/16/2022]
|
216
|
Takahashi H, Okawa T, Fujimori K, Sato A. 544: Maternal regulation of high fat nourishment during lactation period reduce a hypertension of male offspring. Am J Obstet Gynecol 2008. [DOI: 10.1016/j.ajog.2008.09.574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
217
|
Takahashi H, Fujimori K, Okawa T, Sato A. 542: Maternal severe undernutrition during both late gestation and lactation period induce hypertension in male rat offspring. Am J Obstet Gynecol 2008. [DOI: 10.1016/j.ajog.2008.09.572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
218
|
Takahashi H, Okawa T, Fujimori K, Sato A. 573: Regulation of maternal feeding during lactation period may control adulthood hypertension. Am J Obstet Gynecol 2008. [DOI: 10.1016/j.ajog.2008.09.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
219
|
Miyagi S, Okada A, Oikawa K, Sato A, Fujimori K, Satomi S. Effects of serine protease inhibitor and prostaglandin I2 on liver transplantation from non-heart-beating rat donors. Transplant Proc 2008; 40:2152-5. [PMID: 18790178 DOI: 10.1016/j.transproceed.2008.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVES We sought to preserve the microcirculation as a keystone in liver transplantation from a non-heart-beating donor (NHBD). The purpose of this study was to investigate the cytoprotective effects of a serine protease inhibitor, nafamostat mesilate, and prostaglandin I2 (PGI2) on livers transplanted from NHBDs. METHODS Male Wistar rats were used in five groups of nine rats each. In group 1, livers were retrieved from heart-beating donors (HB group); in group 2, livers were retrieved from NHBDs that had experienced agonal apnea (NHB group); in group 3, livers were retrieved in the same manner as in the NHBD group but were pretreated with nafamostat mesilate (NM), 0.2 mg/kg/h, (NM group); in group 4, livers were retrieved in the same manner as in the NHBD group but were pretreated with prostaglandin (PG) I2, 33 ng/kg/h for 30 minutes (PG group); and in group 5, livers were retrieved in the same manner as in the NHBD group but were pretreated with NM plus PG, (NM+PG group). Livers were perfused for 60 minutes with Krebs-Henseleit bicarbonate buffer after 6 hours of cold preservation, after which the perfusate and liver tissue were analyzed in one set of experiments. In another set of experiments, livers retrieved and after 1 hour of cold preservation were transplanted according to the Kamada method. RESULTS In the NM+PG group, the values of interleukin-1beta, tumor necrosis factor-alpha, and thromboxane B2 were significantly lower than those in the NHB group. At histologic analysis, sinusoidal endothelial cells were well preserved in the NM+PG group. The number of survivors at 7 days after liver transplantation in the 5 groups were 9, 0, 1, 1, and 3, respectively. CONCLUSION The serine protease inhibitor, NM, and PGI2 supported sinusoidal endothelial cells and preserved microcirculation.
Collapse
Affiliation(s)
- S Miyagi
- Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai, Japan.
| | | | | | | | | | | |
Collapse
|
220
|
Miyagi S, Sekiguchi S, Kawagishi N, Akamatsu Y, Sato A, Fujimori K, Satomi S. Parkinsonism During Cyclosporine Treatment in Liver Transplantation: An Unusual Case Report. Transplant Proc 2008; 40:2823-4. [DOI: 10.1016/j.transproceed.2008.07.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
221
|
Miyagi S, Enomoto Y, Sekiguchi S, Kawagishi N, Sato A, Fujimori K, Satomi S. Microsurgical Back Wall Support Suture Technique With Double Needle Sutures on Hepatic Artery Reconstruction in Living Donor Liver Transplantation. Transplant Proc 2008; 40:2521-2. [DOI: 10.1016/j.transproceed.2008.07.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
222
|
Goto M, Yoshikawa Y, Matsuo K, Shirasu A, Ogawa N, Takahashi H, Saitoh Y, Goto M, Fujimori K, Kurokawa Y, Tamai M, Satomi S. Optimization of a prominent oxygen-permeable device for pancreatic islets. Transplant Proc 2008; 40:411-2. [PMID: 18374084 DOI: 10.1016/j.transproceed.2008.01.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND We have demonstrated a culture bag system that is useful for pancreatic islet transplantation. To improve and simplify islet transplantation procedures from culture to transplantation, we developed a novel device specific for both islet culture and transplantation (TUBERO Device [TD]) using an oxygen-permeable material. MATERIALS AND METHODS Porcine islets with 30 minutes warm ischemia time were cultured for 24 hours at 37 degrees C in 5% CO2 and humidified air under three different procedures: (1) ordinary culture flask, (2) culture bag suitable for platelets, and (3) TD. Loss of islets during culture, glucose-stimulated insulin release as an islet functional test, and ADP/ATP ratio as an index of islet viability tests were evaluated to compare the devices. TD was further applied in two clinical islet transplantations using non-heart-beating donors in Japan. RESULTS The loss of islets during culture was considerably lower in the TD group. The stimulation index upon glucose challenge tests was significantly higher in the TD group than the others. The ADP/ATP ratio in TD group was significantly lower than that in the ordinary flask group, suggesting that the apoptotic islets were relatively lower among TD. Most importantly, TD was successfully applied both in the clinical islet cultures and in transplantation, resulting in excellent graft function. CONCLUSIONS We propose that the TD, a novel product, not only simplifies islet transplantation procedures, but also maintain the quality of isolated islets.
Collapse
Affiliation(s)
- M Goto
- Tohoku University Biomedical Engineering Research Organization, Tohoku University, Sendai, Japan; Division of Advanced Surgical Science and Technology, Tohoku University, Sendai, Japan.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
223
|
Affiliation(s)
- Keiya Fujimori
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University
| | - Astuhiro Takanashi
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University
| | - Chikara Endo
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University
| | - Akira Sato
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University
| |
Collapse
|
224
|
Sato A, Fujimori K, Sonoda M. [Precautions in use of drugs for pregnancy and lactating women]. Nihon Rinsho 2007; 65 Suppl 8:35-41. [PMID: 18074514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Akira Sato
- Department of Obstetrics and Gynecology, Fukushima Medical University
| | | | | |
Collapse
|
225
|
Bonotto DM, Fujimori K, Moreira-Nordemann LM. Determination of weathering rate of the Morro do Ferro Th-REEs deposit, Brazil using U-isotope method. Appl Radiat Isot 2007; 65:474-81. [PMID: 17270451 DOI: 10.1016/j.apradiso.2006.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Revised: 11/07/2006] [Accepted: 11/19/2006] [Indexed: 11/23/2022]
Abstract
The weathering rate was estimated by changes in (234)U/(238)U activity ratio (AR) and U content of rocks, borehole spoil and surface water samples at the Morro do Ferro Th-REEs deposit. The deposit is situated in the Poços de Caldas alkaline massif, Brazil. The south stream basin investigated in this paper has not been significantly affected by anthropogenic inputs of pollutants as compared to the Corumbataí River basin in São Paulo State, where the method was previously applied. The weathering rate derived utilizing the U-isotopes modeling corresponded to 0.015 mm/yr (67,000 years to weather 1m of rock under the actual climatic conditions). The estimated rate is very reasonable in comparison with the range of 0.015-0.05 mm/yr of land surface lowering within the entire caldera. It is also compatible with a rate of 0.013 mm/yr determined for the Salgado River basin in a semi-arid region in Bahia State, Brazil. The value generated is reliable and increases the potential use of the method for other different areas in Brazil and elsewhere, because it may be used in regions with different climatic conditions and (un)polluted basins.
Collapse
Affiliation(s)
- D M Bonotto
- Departamento de Petrologia e Metalogenia, Universidade Estadual Paulista (UNESP), Câmpus de Rio Claro, Avnue 24-A No.1515, C.P. 178, CEP 13506-900, Rio Claro, São Paulo, Brazil.
| | | | | |
Collapse
|
226
|
Sato K, Sekiguchi S, Kawagishi N, Akamatsu Y, Enomoto Y, Takeda I, Fukushima D, Fujimori K, Sato A, Satomi S. Continuous low-dose human atrial natriuretic peptide promotes diuresis in oliguric patients after living donor liver transplantation. Transplant Proc 2007; 38:3591-3. [PMID: 17175340 DOI: 10.1016/j.transproceed.2006.10.130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2006] [Indexed: 11/23/2022]
Abstract
Human atrial natriuretic peptide (ANP) is beneficial for the prophylaxis of acute renal failure (ARF) after liver transplantation (OLT). We evaluated renal function in OLT patients with or without ARF, describing cases unresponsive to loop diuretics successfully treated with continuous low-dose ANP infusion without hemodialysis. Twenty-seven consecutive adult-to-adult living donor liver transplantations (LDLTs) were performed in 26 patients. One case was excluded due to the need for continuous hemodialysis (HD) during the operation. Of the 26 cases, 6 (23%, group 2) developed ARF in the first 30 days after LDLT; the other 20 were ARF-free (group 1). The median follow-up was 24 months. No patient required either continuous or intermittent HD. Only one patient died due to multiple liver abscesses. Mean preoperative serum creatinine (sCr) value and intraoperative blood loss in group 2 were significantly higher than those in group 1. Three cases in group 2 failed to improve on high-dose loop diuretics with low-dose dopamine, exhibiting fluid overload. The remaining three cases in group 2 responded to conventional diuretic treatments. Continuous low-dose ANP was started 2, 4, or 5 days after LDLT, and urine output significantly increased after ANP administration. The serum creatinine values were 1.1, 1.2, and 1.1 at 1 month and 1.0, 0.9, and 0.6 mg/dL at 6 months after LDLT. Massive blood loss during the operation caused ARF, but did not affect renal function after LDLT. Continuous low-dose ANP improved renal function and diuresis for oliguric ARF patients, preventing the need for HD or continuous venovenous hemodialysis.
Collapse
Affiliation(s)
- K Sato
- Advanced Surgical Science and Technology Division, Department of Surgery, Graduate School of Medicine, University of Tohoku, Sendai, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
227
|
Fujimori K, Dyson RM. Reactivity of Uncyclized Diene Radical in the Cyclocopolymerization of Diallyl Ether with Maleic Anhydride. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/00222338308060569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
228
|
|
229
|
Morimura Y, Yamashita N, Koyama N, Ohzeki T, Takayama T, Fujimori K, Sato A. Gastrointestinal stromal tumor mimicking gynecological disease. Fukushima J Med Sci 2006; 52:21-8. [PMID: 16995351 DOI: 10.5387/fms.52.21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are common mesenchymal tumors of the digestive tract. These tumors occasionally present a pelvic mass and leading to the misdiagnosis of gynecologic diseases. Two patients with GIST in the small intestine giving an impression of an ovarian fibroma and a uterine leiomyoma respectively were diagnosed correctly at the surgery. In the patients with a pelvic mass, especially if unusual symptoms and laboratory data being not compatible with gynecological disease, the possibility of diseases other than a gynecologic disease has to be considered.
Collapse
Affiliation(s)
- Yutaka Morimura
- Department of Gynecology, Tsuboi Cancer Center Hospital, Koriyma, Japan
| | | | | | | | | | | | | |
Collapse
|
230
|
Fujimori K, Murata Y, Sato A. Sporadic fetal heart rate decelerations associated with electrocortical changes in fetal lambs. J Obstet Gynaecol Res 2006; 32:171-7. [PMID: 16594920 DOI: 10.1111/j.1447-0756.2006.00372.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM The purpose of this study was to determine a relationship between sporadic fetal heart rate (FHR) decelerations and fetal electrocortical changes in physiologically normal sheep fetuses. MATERIALS AND METHODS A total of 20 experimental observations were conducted on eight chronically instrumented fetal lambs. For electrocorticogram (ECoG) recording, two stainless steel electrodes were implanted bilaterally on the fetal parietal skull. Classifications of ECoG tracings were visually divided into periods of low, high, intermediate and transitional voltage. During day and night observations, sporadic FHR decelerations related to fetal ECoG changes were counted. RESULTS We found that 65% of the total sporadic FHR decelerations occurred in relation to fetal ECoG changes. The largest number of sporadic FHR decelerations was associated with a switch from low voltage to high voltage ECoG (37%). However, the greatest frequency of sporadic FHR decelerations occurred during intermediate ECoG periods (34%). CONCLUSION The majority of sporadic FHR decelerations observed in physiologically normal sheep fetuses were associated with fetal ECoG changes.
Collapse
Affiliation(s)
- Keiya Fujimori
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of California, Irvine, Orange, USA.
| | | | | |
Collapse
|
231
|
Sato K, Sekiguchi S, Fukumori T, Kawagishi N, Akamastu Y, Enomoto Y, Iwane T, Fujimori K, Sato A, Satomi S. Experience With Recipient’s Superficial Femoral Vein as Conduit for Middle Hepatic Vein Reconstruction in a Right-Lobe Living Donor Liver Transplant Procedure. Transplant Proc 2005; 37:4343-6. [PMID: 16387116 DOI: 10.1016/j.transproceed.2005.11.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Middle hepatic vein reconstruction during the right-lobe living donor liver transplant procedure has been recognized to be a significant factor. We initially reconstructed only a single middle hepatic vein orifice draining into segment 8. In cases where the right-lobe liver graft has several major middle hepatic vein tributaries, including veins draining segment 5 that are remote from the right hepatic vein orifice, a long and thick interposition conduit is necessary for reconstruction. Among 11 consecutive adult patients who received a right-lobe liver graft without a middle hepatic vein at our institution, 8 underwent reconstruction of all major middle hepatic vein tributaries using a vein graft from the recipient's superficial femoral vein. The remaining 3 patients had no major middle hepatic vein tributaries. Posttransplant-computed tomography imagings showed increased liver mass with a patent superficial femoral vein graft in 8 patients. In the absence of a venous system from a deceased donor, a recipient superficial femoral vein offers an excellent size match to maintain the venous outflow of middle hepatic vein tributaries. Reconstruction with recipient superficial femoral vein plays an important role in maximizing liver function and minimizing morbidity in the early posttransplant period.
Collapse
Affiliation(s)
- K Sato
- Department of Surgery, Graduate School of Medicine, University of Tohoku, Sendai, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
232
|
Koyamada N, Sato A, Takayama J, Usuda M, Kawagishi N, Doi H, Fujimori K, Satomi S. Macrophage depletion prevents anti-graft antibody production and results in long-term survival in xenotransplantation. Transplant Proc 2005; 37:514-5. [PMID: 15808694 DOI: 10.1016/j.transproceed.2005.01.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Liposome-encapsulated dichloromethylene diphosphonate (clodronate) is known to deplete macrophages. We examined the effect of clodronate on xenoreactive antibody production and xenograft rejection. Hamster cardiac grafts were transplanted into Lewis rats. Clodronate (4 mL/kg) was injected intravenously on the day before transplantation. In some groups, cyclosporine A (CsA) at a dose of 15 mg/kg was given daily intramuscularly until the end of each experiment. Untreated Lewis rats rejected the grafts at 2 and 3 days after transplantation. Neither CsA treatment alone nor clodronate treatment alone prolonged graft survival. Five of 7 Lewis recipients treated with clodronate and CsA did not reject hamster hearts for 100 days. Antibody production in the CsA plus clodronate-treated group was suppressed compared with control groups.
Collapse
Affiliation(s)
- N Koyamada
- Division of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Sendai City, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
233
|
Abstract
OBJECTIVE Endothelin-1, a 21 amino acid polypeptide produced by vascular endothelial cells, has potent vasoactive properties. The purpose of this study was to estimate the effects of exogenous big endothelin-1 on fetal lamb circulation. METHODS Regional blood flow was measured by the colored microsphere technique during continuous infusion (60 minutes) of big endothelin-1, or saline (control), in 12 chronically instrumented sheep fetuses. RESULTS After 60 minutes of big endothelin-1 administration, the fetal plasma endothelin-1 concentration increased significantly from 24.0 +/- 6.7 to 49.7 +/- 31.4 pg/mL (P = .018) without significant changes in fetal arterial blood gases. Continuous infusion of big endothelin-1 decreased blood flow in most organs except the brain and the heart. After the big endothelin-1 infusion, the blood flow to the brain significantly increased from 158 +/- 51 to 174 +/- 71 mL/min/100 g (P = .002); the blood flow to the heart also increased significantly from 171 +/- 95 to 200 +/- 112 mL/min/100 g (P = .001), respectively. CONCLUSION Continuous infusion of endothelin-1 decreases blood flow in most of organs except the brain and the heart. It is likely that endothelin-1 plays an important role in fetal redistribution of blood flow.
Collapse
Affiliation(s)
- Keiya Fujimori
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University, Fukushima, Japan.
| | | | | | | |
Collapse
|
234
|
Kawagishi N, Satoh K, Enomoto Y, Akamatsu Y, Sekiguchi S, Fukumori T, Fujimori K, Satomi S. New strategy for ABO-incompatible living donor liver transplantation with anti-CD20 antibody (rituximab) and plasma exchange. Transplant Proc 2005; 37:1205-6. [PMID: 15848670 DOI: 10.1016/j.transproceed.2004.12.114] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
It is more difficult to control humoral rejection in living donor liver transplantations (LDLT) across the ABO blood group barrier than in matched or compatible combinations. We achieved excellent results in ABO-incompatible transplantation with novel immunosuppressive regimens and plasma exchange (PE). Among 82 LDLT were 10 cases of ABO-incompatible recipients, including three who were administered rituximab for rescue or prophylactic therapy. Pretransplantation PE was performed as necessary to maintain hemagglutinin titers below 1:16 and posttransplantation PE was performed when there were signs of hyperacute rejection associated with high titers. Induction immunosuppression consisted of FK506, steroid, mycophenolate mofetil (MMF), and rituximab. The first patient was administered rituximab with deoxyspergualin (DSG), steroid pulse therapy, and PE on postoperative day (POD) 7, because of biopsy-proven humoral acute rejection. The titers and LFTs improved drastically. The second and third patients were administered rituximab just after the operation with other routine immunosuppressants for prophylaxis of hyperacute rejection. The second patient showed a slight deterioration in LFTs with an elevated titer, which normalized after steroid pulse therapy and PE. The third patient had no episodes of rejection. At present, that is 27, 17, and 6 months after the operations respectively, the 3 transplant recipients are in stable condition.
Collapse
Affiliation(s)
- N Kawagishi
- Division of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Sendai, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
235
|
Nakashima S, Arai S, Mizuno Y, Yoshino K, Ando S, Nakamura Y, Sugawara K, Koike M, Saito E, Naito M, Nakao M, Ito H, Hamaoka K, Rai F, Asakura Y, Akamatu M, Fujimori K, Inao M, Imai Y, Ota S, Fujiwara K, Shiibashi M. A clinical study of Japanese patients with ulcer induced by low-dose aspirin and other non-steroidal anti-inflammatory drugs. Aliment Pharmacol Ther 2005; 21 Suppl 2:60-6. [PMID: 15943849 DOI: 10.1111/j.1365-2036.2005.02476.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND The incidence and severity of non-steroidal anti-inflammatory drugs (NSAIDs)-induced gastro-duodenal ulcer have not been extensively studied in Japan. AIM We performed a prospective study to clarify NSAIDs-induced gastro-duodenal injury, focusing especially on low-dose aspirin (L-A). METHODS Two hundred and thirty-eight patients with bleeding peptic ulcers admitted to our hospital. History of taking NSAIDs and anti-ulcer drugs was obtained from all patients who underwent endoscopic examinations. The lesion scores of patients taking L-A were classified numerically from zero (no lesion) to five (ulcer). RESULTS The NSAIDs were associated with 28.2% of hemorrhagic ulcers. The rates of patients using L-A, loxoprofen, diclofenac, and combination of two of these drugs were 27, 16, 10 and 9%, respectively. Co-administered anti-ulcer drugs were cytoprotective anti-ulcer drugs (27%), H2 receptor antagonists (16%), PPI (4%), and none (53%). In patients taking L-A, H2 receptor antagonists were used most frequently. The HP was positive in 63% of L-A-induced ulcer cases and in 69% of NSAIDs other than low-dose aspirin-induced ulcer cases. The lesion scores of patients taking L-A with H2 receptor antagonists or PPI were significantly lower than those of patients who were taking only L-A (P < 0.05). CONCLUSIONS Approximately one-third of hospitalized patients with NSAIDs-induced hemorrhagic ulcer showed an association with L-A. Prospective randomized controlled trials including H2 receptor antagonists are required to establish preventive efforts aimed at L-A-induced gastro-duodenal injury.
Collapse
Affiliation(s)
- S Nakashima
- Department of Gastroenterology & Hepatology, Saitama Medical School, Iruma-gun, Saitama, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
236
|
Fujimori K, Shimodaira S, Akamatsu T, Furihata K, Katsuyama T, Hosaka S. Effect of Helicobacter pylori eradication on ongoing mutation of immunoglobulin genes in gastric MALT lymphoma. Br J Cancer 2005; 92:312-9. [PMID: 15655559 PMCID: PMC2361844 DOI: 10.1038/sj.bjc.6602262] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Gastric low-grade mucosa-associated lymphoid tissue (low-grade MALT) lymphomas has been associated with Helicobacter pylori (H. pylori) infection. Although infiltrating T cells with specificity for H. pylori are known to stimulate the development of MALT lymphomas, the effect of H. pylori eradication on rearranged immunoglobulin heavy chain (IgH) genes of low-grade gastric MALT lymphomas is unclear. Gastric biopsies from five cases were investigated by cloning and sequence analysis of rearranged IgH genes before and after the treatment for H. pylori. In all cases, IgH genes were mutated from their germline counterpart. The frequency of intraclonal sequence heterogeneity before the eradication of H. pylori varied from 0.25 to 0.49%. Clones obtained from the tumours before the eradication of H. pylori in cases 1 and 2 showed a tendency to display a mutation pattern by positive antigen selection and their monoclonarity disappeared after the eradication. The frequency of intraclonal sequence heterogeneity of the clones obtained from cases 3, 4 and 5 (0.12% in case 3, 0.10% in 4 and 0.18% in 5) after the eradication of H. pylori was lower than that in tumours before the eradication (0.30% in case 3, 0.49% in 4 and not determined in 5). These findings suggest that low-grade gastric MALT lymphomas expand due to the persistent presence of H. pylori in vivo. The characteristic feature of tumour clones obtained from the tumours after the eradication of H. pylori is a very low intraclonal heterogeneity, which may potentially be independent of H. pylori.
Collapse
Affiliation(s)
- K Fujimori
- The Second Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Shimodaira
- The Second Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Akamatsu
- Department of Endoscopy, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Furihata
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Katsuyama
- Department of Laboratory Medicine, Shinshu University School of Medicine, Matsumoto, Japan
| | - S Hosaka
- Department of Internal Medicine, Maruko General Hospital, 335-5 Maruko-machi, Chisagata-gun, Nagano-ken 386-0493, Japan
- Department of Internal Medicine, Maruko General Hospital, 335-5 Maruko-machi, Chisagata-gun, Nagano-ken 386-0493, Japan. E-mail:
| |
Collapse
|
237
|
Okawa T, Honda S, Sanpei M, Ishida T, Fujimori K, Sato A. Effects of nitric oxide and prostacyclin on hemodynamic response by big endothelin-1 in near term fetal sheep. J Perinat Med 2005; 32:495-9. [PMID: 15576270 DOI: 10.1515/jpm.2004.149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AIMS To measure plasma concentrations of endothelin (ET)-1, NO metabolites (nitrate/nitrite; NOx) and 6-keto PGF1 alpha (PGF1 alpha) in maternal and fetal sheep blood, and to evaluate the effects of big ET-1 on hemodynamic response, blood gases and NO and 6-keto PGF1 alpha production in near term fetal sheep. METHODS Hemodynamic parameters were measured during infusion of big ET-1 into the carotid vein in chronically catheterized fetal sheep on day 125 of gestation. Fetal arterial blood samples were obtained for ET-1, PGF1 alpha) and nitrate/nitrite (NOx) measurements. RESULTS ET-1, NOx and PGF1 alpha plasma concentrations were all significantly higher in fetal compared with the maternal plasma. Big ET-1 significantly decreased fetal systolic and diastolic blood pressure and significantly increased fetal heart rate. Big ET-1 stimulated plasma PGF1 alpha), but not NOx , concentration. CONCLUSIONS Circulatory regulating factors in the fetus were up-regulated. The effects of ET-1 on fetal hemodynamic response may be mediated via prostacyclin, but not via the NO pathway.
Collapse
Affiliation(s)
- Toshiaki Okawa
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Fukushima 960-1295, Japan.
| | | | | | | | | | | |
Collapse
|
238
|
Masuoka H, Fujimori K, Sekiguchi S, Watanabe M, Wang H, Aiso T, Yamaya H, Satoh A, Satomi S. Beneficial effect of FR183998, a Na+/H+ exchanger inhibitor, on porcine pancreas allotransplantation retrieved from non–heart-beating donors. Transplant Proc 2005; 37:223-5. [PMID: 15808601 DOI: 10.1016/j.transproceed.2004.12.227] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Activation of Na(+)/H(+) exchanger (NHE) may have an important role in the ischemia/reperfusion injury by producing intracellular calcium overload. Recent studies have shown a beneficial effect of an NHE inhibitor on the ischemia/reperfusion injury in the heart. In this study, we examined the effect of FR183998, a potent NHE inhibitor, in porcine pancreas allotransplantation from non-heart-beating Landrace pig donors (NHBDs). The four experimental groups included: untreated with no preservation (group 1; n = 3), treated with no preservation (group 2; n = 5), untreated with preservation (group 3; n = 6), and treated with preservation (group 4; n = 4). The preservation was made in ice-cold University of Wisconsin (UW) solution for 24 hours. The groups treated received 1 mg/kg FR183998 before donor cardiac arrest and 10 mg in the UW solution flush in situ. Serum blood glucose, insulin, and amylase were measured daily. An intravenous glucose tolerance test (IVGTT) was performed on the postoperative day (POD) 7 when pigs were sacrificed for histological examination. Graft survival rates on that day in groups 1,2,3, and 4 were 3 of 3; 5 of 5; 3 of 6; and 4 of 4, respectively. The mean K values of IVGTT in groups 3 and 4 were 0.78 +/- 0.10 and 1.27 +/- 0.16, respectively, which were significantly different (P < .05). Upon histological examination, pancreatic tissue in group 3 showed more severe edema and necrosis than other groups. FR183998 may be considered beneficial for ischemia/reperfusion injury to pancreatic grafts from NHBDs.
Collapse
Affiliation(s)
- H Masuoka
- Division of Advanced Surgical Science and Technology, Graduate School of Medicine, Tohoku University, Sendai, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
239
|
Abstract
Foetomaternal alloimmune thrombocytopenia (FMAIT) occurs when maternal antibodies of an antigen-negative mother cause destruction of sensitized foetal platelets. In Caucasian populations, 6-12% of human platelet antigen (HPA)-1a-negative women develop anti-HPA-1a, and the incidence of clinically affected cases is estimated to be 10-20% of immunized women. This study was performed in order to elucidate the rate of maternal immunization, incidence of FMAIT and the likely outcome of the condition in Asians. Excluding two or more pregnancies during the period, serum samples from 24 630 pregnant women, mainly Japanese, were screened for antibodies against platelet alloantigens by means of mixed passive haemagglutination (MPHA) (Anti-HPA-MPHA, Olympus, Tokyo). Antibodies were detected in 0.91% (223/24 630) of the women's samples and the immunization rate was correlated with the number of pregnancies. Antibody specificity included anti-HPA-4b (49), anti-HPA-5a (three), anti-HPA-5b (168), anti-HPA-4b + 5b (one) and anti-Nak(a) (CD36) (two). No alloimmunization was observed within the HPA-1, HPA-2, HPA-3 or HPA-6 systems. Among HPA-4b- or HPA-5b-negative women, 24% or 14% estimated, respectively, had antibodies and 26% (10/38) or 10% (12/125) of neonates, respectively, born to these mothers developed thrombocytopenia. Two neonates born to mothers having anti-HPA-4b developed generalized purpura. No cases of intracranial bleeding or death due to FMAIT were recorded. Generalized purpura due to FMAIT occurs in one in 9359 (95% CI: 1 in 77 519-1 in 2591) pregnancies solely because of HPA-4b incompatibility.
Collapse
Affiliation(s)
- H Ohto
- Division of Blood Transfusion and Transplantation Immunology, Fukushima Medical University School of Medicine, Hikariga-oka, Fukushima City, Fukushima 960-1295, Japan.
| | | | | | | | | | | |
Collapse
|
240
|
Fujimori K, Shiroto T, Kuretake S, Gunji H, Sato A. An omphalopagus parasitic twin after intracytoplasmic sperm injection. Fertil Steril 2004; 82:1430-2. [PMID: 15533372 DOI: 10.1016/j.fertnstert.2004.04.056] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2003] [Revised: 04/14/2004] [Accepted: 04/14/2004] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To describe a first case of parasitic twin achieved after intracytoplasmic sperm injection (ICSI). DESIGN Case report. SETTING Perinatal center at a Japanese university hospital. PATIENT(S) A 30-year-old pregnant Japanese woman with a history of secondary infertility achieved after ICSI was diagnosed with an omphalopagus parasitic twin pregnancy by prenatal ultrasound at 28 weeks of gestation. INTERVENTION(S) A female infant was delivered by scheduled cesarean section at 30 weeks of gestation. The cesarean section was performed for dystocia. MAIN OUTCOME MEASURE(S) Brief review of parasitic twin and malformations in fetuses achieved after ICSI. RESULT(S) Resuscitation was not done because of the poor prognosis for both fetuses. Molecular analysis with informative genetic markers is consistent with monozygotic pregnancy. CONCLUSION(S) A careful ultrasound examination is indicated to detect additional anomalous findings in twin fetuses achieved after ICSI.
Collapse
Affiliation(s)
- Keiya Fujimori
- Departments of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University, Fukushima City, Fukushima, Japan.
| | | | | | | | | |
Collapse
|
241
|
Fujimori K, Nomura Y, Kato K, Shiroto T, Ishida T, Sato A. The effects of veno-venous extracorporeal membrane oxygenation on hypoxic fetal lambs. J Matern Fetal Neonatal Med 2004; 16:119-24. [PMID: 15512723 DOI: 10.1080/14767050400003785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the applicability of veno-venous extracorporeal membrane oxygenation (V-V ECMO) to support fetal oxygenation in utero. METHODS An ECMO system with a centrifugal pump was applied to ten chronically instrumented fetal lambs, at 126 or 127 days of gestation. Blood was obtained through a double-lumen catheter inserted into the right atrium. After oxygenation, the blood was returned through a single-lumen catheter into either the carotid artery (veno-arterial; V-A ECMO) or the right atrium (V-V ECMO). After fetal hypoxia had been experimentally produced, V-A ECMO or V-V ECMO was instituted to maintain fetal oxygenation. We compared fetal blood gases with both routes of ECMO. RESULTS Oxygen partial pressure (pO(2)) in the fetal cranial carotid artery decreased to 12.9 +/- 0.6 mmHg after reducing the fraction inspiratory oxygen of the mother. After instituting V-A ECMO, pO(2) was found to be 23.5 +/- 2.6 mmHg; after instituting V-V ECMO, pO(2) was found to be 20.3 +/- 1.9 mmHg. Thus, fetal acidosis increased under both procedures. Fetal heart rate and blood pressure were not altered significantly during the experiments. CONCLUSIONS This study indicates that V-V ECMO could more effectively and less traumatically maintain oxygenation in hypoxic fetal lambs.
Collapse
Affiliation(s)
- K Fujimori
- Department of Obstetrics and Gynecology, Fukushima Medical University, Japan
| | | | | | | | | | | |
Collapse
|
242
|
Morimura Y, Fujimori K, Sato T, Watanabe T, Sato A. Imprint cytology of extraskeletal mesenchymal chondrosarcoma of the perineum: a case report. Acta Cytol 2004; 48:649-52. [PMID: 15471258 DOI: 10.1159/000326437] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Extraskeletal mesenchymal chondrosarcoma (EMC) is an uncommon soft tissue tumor, occurring mainly in the lower limbs, meninges and retroperitoneum. EMC of the female genital tract is extremely rare, and the cytologic literature is scarce. CASE A 43-year-old female with a growing perineal mass underwent excision of the tumor. Pathologic examination of the rumor revealed a characteristic two-cell pattern of primitive small cells and cartilaginous tissue. A diagnosis of EMC of the perineum was made. Imprint cytology from surgical material showed a cluster of small round cells with a focal hemangiopericytomalike arrangement and islets of cartilage. The cartilaginous cells reacted with S-100 protein immunocytochemically. CONCLUSION The characteristic features of EMC, a hemangiopericytomalike arrangement of small cells and S-100-positive cartilaginous cells, may be helpful in diagnosing EMC and differentiating it from other perineal tumors.
Collapse
Affiliation(s)
- Yutaka Morimura
- Department of Gynecology, Tsuboi Hospital, Jizankai Medical Institute, Koriyama, Japan
| | | | | | | | | |
Collapse
|
243
|
Fujimori K, Nomura Y, Kato K, Shiroto T, Ishida T, Sato A. The effects of veno-venous extracorporeal membrane oxygenation on hypoxic fetal lambs. J Matern Fetal Neonatal Med 2004. [DOI: 10.1080/jmf.16.2.119.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- K Fujimori
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| | - Y Nomura
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| | - K Kato
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| | - T Shiroto
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| | - T Ishida
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| | - A Sato
- Department of Obstetrics and Gynecology Fukushima Medical University Fukushima Japan
| |
Collapse
|
244
|
Abstract
OBJECTIVES To investigate fetal heart rate accelerations, fetal breathing movements, and fetal electrocortical activities during administration of magnesium sulfate to fetal goats. METHODS The fetal heart rate accelerations, fetal breathing movements, and fetal electrocortical activities during 6 hours of continuous magnesium sulfate infusion into the fetal jugular vein were examined in 8 chronically instrumented fetal goats at 124-131 days of gestation. Fetal breathing movements were defined as repetitive negative fluctuations of the fetal tracheal pressure. Fetal electrocortical activities were assessed by visual analysis of periods of high-voltage and low-voltage electrocortical activities. RESULTS Continuous infusion of magnesium sulfate for 6 hours significantly increased the fetal plasma magnesium concentration from 2.8 +/- 1.2 to 8.3 +/- 2.6 mg/dL without significant changes in fetal arterial blood gases. The incidence of fetal heart rate accelerations during magnesium infusion was significantly decreased from that found during the control periods. After 2 hours of infusion, the incidence of fetal breathing movements significantly decreased from 33.9% +/- 20.5% to 1.2% +/- 1.4% and remained at this level during the remaining 4 hours of magnesium infusion. The percentage of time that the fetuses were found to have low-voltage electrocortical activities decreased from 51.6% +/- 9.0% to 40.4% +/- 8.2% after 2 hours of infusion but recovered to 49.9% +/- 12.0% by 6 hours of magnesium infusion. CONCLUSION We concluded that fetal magnesium sulfate administration affected fetal heart rate accelerations and fetal breathing movements continuously but electrocortical activities only temporarily during 6 hours of observations.
Collapse
Affiliation(s)
- Keiya Fujimori
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University, Fukushima City, Fukushima, Japan.
| | | | | | | |
Collapse
|
245
|
Watanabe T, Fujimori K, Kato K, Nomura Y, Onogi S, Sato A. Prenatal diagnosis for placental steroid salfatase deficiency with fluorescence in situ hybridization: A case of X-linked ichthyosis. J Obstet Gynaecol Res 2003; 29:427-30. [PMID: 14641695 DOI: 10.1111/j.1341-8076.2003.00142.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
X-linked ichthyosis (XLI) is a relatively common genetic disorder that occurs in about one in every 2000-6000 male births. Clinically, XLI is characterized by a generalized scaling of the skin, with large, polygonal, dark brown scale, and more prominent on the extensor aspects of the limbs. It is known that an undetectable maternal serum, unconjugated estriol, associated with placental steroid sulfatase (STS) deficiency, may be the cause of cause of XLI. In most case, STS deficiency is caused by a complete or partial deletion of the STS gene mapped on chromosome Xp22.3. We describe here the prenatal detection of a male fetus affected with STS deficiency as a result of an undetectable unconjugated estriol in the second-trimester maternal serum screening. Microdeletion of the STS gene was confirmed by fluorescence in situ hybridization analysis of cultured amniotic fluid.
Collapse
Affiliation(s)
- Takafumi Watanabe
- Department of Obstetrics and Gynecology, Fukushima Medical University, Fukushima City, Fukushima, Japan.
| | | | | | | | | | | |
Collapse
|
246
|
Nomura Y, Fujimori K, Kato K, Shiroto T, Yamada J, Sato A, Endo C. Efects of veno-arterial vs veno-venous extracorporeal membrane oxygenation on hypoxemic intrauterine ovine fetuses. Am J Obstet Gynecol 2003. [DOI: 10.1016/j.ajog.2003.10.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
247
|
Morimura Y, Fujimori K, Ishida T, Ito A, Nomura Y, Sato A. Fetal hepatic hemangioma representing non-reassuring pattern in fetal heart rate monitoring. J Obstet Gynaecol Res 2003; 29:347-50. [PMID: 14641708 DOI: 10.1046/j.1341-8076.2003.00129.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To the best of our knowledge, this is the first report of a non-reassuring fetal pattern caused by a hepatic hemangioma that was found during fetal heart rate monitoring. A 37 weeks' gestation, a 32-year-old-woman was referred to our hospital for evaluation of a rapidly growing fetal abdominal tumor. Fetal heart rate monitoring revealed a non-reassuring pattern, and a cesarean section was performed as a result. Examination of the 2820 g female infant suggested a hepatic hemangioma accompanying an intratumor hemorrhage and coagulopathy. The infant died 2 days after birth. The autopsy confirmed that the cause of death was a result of a hepatic hemangioma. Frequent monitoring of fetuses and ultrasound examinations are necessary for determining the timing of delivery and for a favorable prognosis.
Collapse
Affiliation(s)
- Yutaka Morimura
- Department of Obstetrics and Gynecology, School of Medicine, Fukushima Medical University, Fukushima, Japan.
| | | | | | | | | | | |
Collapse
|
248
|
Mizuno Y, Fujimori K, Sekiguchi S, Watanabe M, Ohkohchi N, Satomi S. An experimental study of porcine pancreas allotransplantation from non-heart-beating donors. Transplant Proc 2002; 34:2617-8. [PMID: 12431546 DOI: 10.1016/s0041-1345(02)03482-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Y Mizuno
- Division of Advanced Surgical Science and Technology, Graduate School of Medicine Tohoku University, Sendai, Japan
| | | | | | | | | | | |
Collapse
|
249
|
Fujimori K, Murata Y, Quilligan EJ, Nagata N, Hirano T, Sato A. Distribution of oxygenated blood flow at three different routes of extracorporeal membrane oxygenation in exteriorized fetal lambs. J Obstet Gynaecol Res 2002. [DOI: 10.1046/j.1341-8076.2002.t01-2-00048.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
250
|
Morimura Y, Fujimori K, Soeda S, Hashimoto T, Takano Y, Yamada H, Yanagida K, Sato A. Cervical cytology during pregnancy--comparison with non-pregnant women and management of pregnant women with abnormal cytology. Fukushima J Med Sci 2002; 48:27-37. [PMID: 12365596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
Abstract
To clarify the clinical significance of uterine cervical cytology during pregnancy, we analyzed the incidence of cervical cytology and its accuracy. Of the 1,593 pregnant women underwent cervical cytology, the patients with abnormal cytology were followed up and performed histological confirmation on colposcopic biopsy specimen. An incidence of abnormal cytology and cervical neoplasm during pregnancy were 1.63% (26 cases) and 0.82% (13 cases), respectively. The incidence of abnormal cytology in the pregnant women was significantly higher than that (0.9%) in mass-screened, non-pregnant 214,375 women under the age of 45 years (P < 0.001). There was no significant difference of the incidence of cervical neoplasm between in the pregnant women and in mass-screened, non-pregnant women (0.82% vs. 0.46%). The accuracy of cervical cytology during pregnancy was 45.0% and this was not significantly different from that (27.6%) in the mass-screened, non-pregnant women. Since, cervical screening cytology for uterine cervical cancer in the pregnant women as shown in this study, has an equal effectiveness to that in the mass-screened non-pregnant women, routine cervical cytology is highly recommended to performed during pregnancy. In addition, management of pregnant women with abnormal cytology was discussed in this article.
Collapse
Affiliation(s)
- Yutaka Morimura
- Department of Obstetrics and Gynecology, Fukushima Medical University School of Medicine, Japan
| | | | | | | | | | | | | | | |
Collapse
|