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3.
Mol Ecol Resour ; 15(1): 68-80, 2015 01.
Article in English | MEDLINE | ID: mdl-24943089

ABSTRACT

Marine planktonic copepods are an ecologically important group with high species richness and abundance. Here, we propose a new metagenetic approach for revealing the community structure of marine planktonic copepods using 454 pyrosequencing of nuclear large subunit ribosomal DNA. We determined an appropriate similarity threshold for clustering pyrosequencing data into molecular operational taxonomic units (MOTUs) using an artificial community containing 33 morphologically identified species. The 99% similarity threshold had high species-level resolution for MOTU clustering but overestimated species richness. The artificial community was appropriately clustered into MOTUs at 97% similarity, with little inflation in MOTU numbers and with relatively high species-level resolution. The number of sequence reads of each MOTU was correlated with dry weight of that taxon, suggesting that sequence reads could be used as a proxy for biomass. Next, we applied the method to field-collected samples, and the results corresponded reasonably well with morphological analysis of these communities. Numbers of MOTUs were well correlated with species richness at 97% similarity, and large numbers of sequence reads were generally observed in MOTUs derived from species with large biomass. Further, MOTUs were successfully classified into taxonomic groups at the family level at 97% similarity; similar patterns of species richness and biomass were revealed within families with metagenetic and morphological analyses. At the 99% similarity threshold, MOTUs with high proportions of sequence reads were identified as biomass-dominant species in each field-collected sample. The metagenetic approach reported here can be an effective tool for rapid and comprehensive assessment of copepod community structure.


Subject(s)
Biota , Copepoda/classification , Copepoda/genetics , Metagenomics , Animals , Cluster Analysis , Copepoda/anatomy & histology , DNA, Ribosomal/chemistry , DNA, Ribosomal/genetics , Molecular Sequence Data , Phylogeny , RNA, Ribosomal/genetics , Seawater , Sequence Analysis, DNA
4.
Knee ; 18(6): 453-5, 2011 Dec.
Article in English | MEDLINE | ID: mdl-20643552

ABSTRACT

Pyoderma gangrenosum is a rare ulcerative disorder of the skin of unknown etiology. We present a case of pyoderma gangrenosum that occurred following total knee arthroplasty, which was initially misdiagnosed as severe wound infection. Repeated debridement procedures resulted in a large soft tissue defect around the anterior knee joint. The patient was treated successfully with a latissimus dorsi musculocutaneous flap under immunosuppressive therapy. Pyoderma gangrenosum is often misdiagnosed as an infected wound, but the treatment for theses differential diagnoses is completely different. When a lesion is refractory to thorough treatment for infection, a diagnosis of pyoderma gangrenosum should be considered.


Subject(s)
Arthroplasty, Replacement, Knee/adverse effects , Cyclosporine/therapeutic use , Immunosuppressive Agents/therapeutic use , Prednisolone/therapeutic use , Pyoderma Gangrenosum , Surgical Wound Infection/diagnosis , Aged, 80 and over , Debridement , Dermatologic Surgical Procedures , Diagnosis, Differential , Drug Therapy, Combination , Female , Humans , Knee Joint/pathology , Knee Joint/surgery , Pyoderma Gangrenosum/diagnosis , Pyoderma Gangrenosum/drug therapy , Pyoderma Gangrenosum/surgery , Skin/pathology , Surgical Flaps , Surgical Wound Infection/drug therapy , Surgical Wound Infection/surgery , Treatment Outcome
5.
Clin Nephrol ; 72(3): 211-5, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19761727

ABSTRACT

We report a 56-year-old man with microscopic polyangiitis (MPA) who developed acute exacerbation of a chronic subdural hematoma (SDH). Laboratory data demonstrated elevation of myeloperoxidase antineutrophil cytoplasmic antibody (MPOANCA) and rapidly progressing renal dysfunction. Renal biopsy showed crescentic glomerulonephritis (GN) with membranous nephropathy (MN). He was treated with corticosteroids, antithrombotic agents, and an immunosuppressant. One month after initiation of treatment, he had a mild headache. One month later, he developed acute SDH. Although he recovered completely after the operation, he finally died of bacterial infection. On autopsy, a scar of vasculitis was confirmed in the leptomeninges as well as in the kidney and lung. Although SDH is a rare complication in MPA, nephrologists must pay more attention to the initial symptoms before a hematoma attack such as headache, especially in patients using antithrombotic agents.


Subject(s)
Fibrinolytic Agents/adverse effects , Hematoma, Subdural, Acute/etiology , Hematoma, Subdural, Chronic/etiology , Microscopic Polyangiitis/complications , Humans , Male , Middle Aged
6.
BMJ Case Rep ; 20092009.
Article in English | MEDLINE | ID: mdl-21734916

ABSTRACT

Hashimoto encephalopathy has a wide clinical spectrum with various neuropsychiatric features. The detection of anti-thyroid antibodies in patient sera is helpful, but alone not sufficient for the diagnosis of Hashimoto encephalopathy because of the high prevalence of antibodies in the normal population. Here, a patient with Hashimoto encephalopathy, who presented with progressive cerebellar ataxia with mild abnormality on electroencephalography (EEG) and who showed marked improvement after steroid administration, is described. This emphasises that Hashimoto encephalopathy can present with isolated cerebellar ataxia and is responsive to immunosupression.

7.
Dig Liver Dis ; 40(6): 468-75, 2008 Jun.
Article in English | MEDLINE | ID: mdl-18328794

ABSTRACT

BACKGROUND: Crohn's disease patients often carry gastroduodenal lesions. However, few reports have addressed specific gastroduodenoscopic findings in Crohn's disease patients. METHODS: The gastroduodenoscopic findings of 63 Crohn's disease patients were examined. Those of 62 ulcerative colitis and 63 age- and gender-matched gastroesophageal reflux disease patients were also reviewed as controls. Findings of bamboo-joint-like appearance, gastric antral erosions, and duodenal lesions were the specific findings that were highlighted. RESULTS: Of 63 Crohn's disease patients, 47 (75%) had at least one of the specific gastroduodenoscopic findings, and the prevalence of these findings was significantly higher in Crohn's disease patients than in ulcerative colitis and gastroesophageal reflux disease patients (ulcerative colitis, 24/62, 39%; gastroesophageal reflux disease, 15/63, 24%, P < 0.0001). In particular, bamboo-joint-like appearance was almost unique to Crohn's disease patients (Crohn's disease, 28/63, 44%; ulcerative colitis, 3/62, 5%; gastroesophageal reflux disease, 0/63, 0%, P < 0.0001). Analysis of the relationship between the Crohn's disease patient's background and gastrodunodenoscopic findings revealed that both patients with disease affecting the ileum and those with previous gut operations were more likely to exhibit the specific gastroduodenoscopic findings (P = 0.030 and P = 0.043, respectively). CONCLUSION: Specific gastroduodenoscopic findings were observed in Crohn's disease patients. In particular, bamboo-joint-like appearance could be a unique marker of Crohn's disease.


Subject(s)
Colitis, Ulcerative/complications , Crohn Disease/complications , Duodenal Diseases/complications , Gastritis/complications , Gastroesophageal Reflux/complications , Adolescent , Adult , Aged , Case-Control Studies , Colitis, Ulcerative/diagnosis , Crohn Disease/diagnosis , Duodenal Diseases/diagnosis , Duodenoscopy , Female , Gastritis/diagnosis , Gastroesophageal Reflux/diagnosis , Gastroscopy , Humans , Male , Middle Aged
8.
J Neuroimmunol ; 185(1-2): 195-200, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17335908

ABSTRACT

Recently, we discovered autoantibodies against the amino (NH(2))-terminal of alpha-enolase (NAE) in patients with Hashimoto's encephalopathy (HE) (83.3%; 5/6) [Fujii, A., Yoneda, M., Ito, T., Yamamura, O., Satomi, S., Higa, H., Kimura, M., Suzuki, M., Yamashita, M., Yuasa, T., Suzuki, H., Kuriyama, M., 2005. Autoantibodies against the amino terminal of alpha-enolase are a useful diagnostic marker of Hashimoto's encephalopathy. J. Neuroimmunol. 162, 130-136]. We further investigated the anti-NAE autoantibodies in 25 patients who fit the diagnostic criteria for HE, based on the presence of anti-thyroid antibodies and responsiveness to immunotherapy. In this study, we demonstrated a high prevalence (68%, 17 of 25) and high specificity of anti-NAE autoantibodies in patients with HE, and clarified the clinical features of HE. This result demonstrated that anti-NAE autoantibodies, in addition to anti-thyroid autoantibodies, are emphasized as useful serological diagnostic markers of HE.


Subject(s)
Autoantibodies/blood , Brain Diseases/etiology , Brain Diseases/immunology , Hashimoto Disease/complications , Phosphopyruvate Hydratase/immunology , Adult , Aged , Aged, 80 and over , Blotting, Western , Brain Diseases/blood , Electrophoresis, Polyacrylamide Gel , Female , Humans , Male , Middle Aged , Phosphopyruvate Hydratase/chemistry , Prevalence
9.
Dig Liver Dis ; 39(5): 422-9, 2007 May.
Article in English | MEDLINE | ID: mdl-17379587

ABSTRACT

BACKGROUND: The effectiveness of leukocytapheresis against ulcerative colitis has been reported. However, the efficacy of this therapy for steroid-resistant ulcerative colitis patients has hardly been examined. AIMS: The aims of this study are to evaluate the efficacy of leukocytapheresis for steroid-resistant ulcerative colitis patients and to identify clinical factors that predict the efficacy of this therapy for these patients. METHODS: Clinical factors of 71 steroid-resistant ulcerative colitis patients who underwent leukocytapheresis analysed. RESULTS: Of those analysed, 53 (75%) patients showed an initial response to leukocytapheresis. Among cases with initial response, however, only 19 (27%) patients maintained remission for more than 6 months. Steroid-dependent course (Odds ratio =5.53, 95% confidence interval; 1.24-24.73) and a high C-reactive protein degree (Odds ratio=1.6, confidence interval; 1.09-2.35) were predictors of initial response to leukocytapheresis. Rapid response, which means remission induction within three leukocytapheresis sessions, was the only predictor of maintenance of remission for more than 6 months after successful leukocytapheresis therapy (odds ratio=8.01, confidence interval; 1.08-59.37). CONCLUSIONS: Leukocytapheresis was effective for steroid-resistant ulcerative colitis patients. However, relapse was frequently observed within short periods after the initial response to this therapy. Patients without a rapid response should be treated with alternative or additional therapies.


Subject(s)
Colitis, Ulcerative/therapy , Leukapheresis , Adolescent , Adult , Aged , Child , Female , Humans , Male , Middle Aged , Predictive Value of Tests , Steroids/therapeutic use , Treatment Outcome
11.
J Neuroimmunol ; 162(1-2): 130-6, 2005 May.
Article in English | MEDLINE | ID: mdl-15833368

ABSTRACT

We investigated autoantibodies and their epitope(s) in Hashimoto's encephalopathy associated with Hashimoto's thyroiditis. In a proteomic analysis, they proved to recognize alpha-enolase. We further searched the epitope region in alpha-enolase using different regions of recombinant proteins expressed in cultured human cells. The amino terminal region was recognized by autobodies from a much higher proportion of patients with Hashimoto's encephalopathy (83.3%; 5/6) than from patients with Hashimoto's thyroiditis (11.8%; 2/17), and not at all by sera from controls (25 healthy individuals and 25 controls with other neurological disorders) (0%; 0/50). Neither the carboxyl terminal nor the mid-region of alpha-enolase showed specificity for Hashimoto's encephalopathy. Autoantibodies against the amino terminal of alpha-enolase are a useful diagnostic marker for Hashimoto's encephalopathy.


Subject(s)
Autoantibodies , DNA-Binding Proteins/immunology , Phosphopyruvate Hydratase/immunology , Thyroiditis, Autoimmune/diagnosis , Tumor Suppressor Proteins/immunology , Adult , Aged , Autoantibodies/blood , Biomarkers , Biomarkers, Tumor , Blotting, Western/methods , Brain/metabolism , Cells, Cultured , DNA-Binding Proteins/blood , DNA-Binding Proteins/chemistry , Echocardiography/methods , Epitopes/immunology , Epitopes/metabolism , Female , Humans , Middle Aged , Phosphopyruvate Hydratase/blood , Phosphopyruvate Hydratase/chemistry , Recombinant Proteins/isolation & purification , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization/methods , Thyroiditis, Autoimmune/blood , Thyroiditis, Autoimmune/immunology , Tumor Suppressor Proteins/blood , Tumor Suppressor Proteins/chemistry
13.
Aliment Pharmacol Ther ; 20 Suppl 1: 102-6, 2004 Jul.
Article in English | MEDLINE | ID: mdl-15298614

ABSTRACT

BACKGROUND: Effective therapy for gastro-oesophageal reflux disease (GERD) is associated with improvement in health-related quality of life. It remains unclear whether Helicobacter pylori infection protects against GERD. AIM: We evaluated the relationship between GERD and H. pylori, and whether the health-related quality of life score improved after medical treatment. METHODS: We enrolled 151 outpatients with upper abdominal symptoms; 81 patients received omeprazole 20 mg/day for 2 weeks. Health-related quality of life was assessed using the Gastrointestinal Symptom Rating Scale (GSRS) and the Psychological General Well-Being (PGWB) index. H. pylori infection was diagnosed by serum antibody or endoscopy and the relationship between GERD and H. pylori was evaluated. RESULTS: In GERD patients, the mean GSRS score improved from 2.20 to 1.67 following treatment (P < 0.01). The mean GSRS reflux symptom score improved from 2.96 to 1.67 (P < 0.01). The mean PGWB score improved from 96.36 to 107.34 (P < 0.01). All scores in GERD patients significantly improved compared with non-GERD patients. The H. pylori-positive ratio was 66.15% in GERD patients and 65.21% in non-GERD patients (P = 0.94). CONCLUSIONS: Health-related quality of life is useful for evaluation of proton pump inhibitor treatment in GERD. The presence of H. pylori was not associated with the prevalence of GERD.


Subject(s)
Anti-Ulcer Agents/therapeutic use , Gastroesophageal Reflux/drug therapy , Helicobacter Infections/drug therapy , Helicobacter pylori , Omeprazole/therapeutic use , Proton Pump Inhibitors , Female , Gastroesophageal Reflux/microbiology , Helicobacter Infections/complications , Humans , Male , Middle Aged , Quality of Life , Surveys and Questionnaires , Treatment Outcome
14.
Dig Liver Dis ; 35(7): 468-72, 2003 Jul.
Article in English | MEDLINE | ID: mdl-12870731

ABSTRACT

BACKGROUND AND AIM: Helicobacter pylori infection is associated with gastric adenocarcinoma, however, the odds ratio is relatively low. The aim of the present study was to investigate host genetic factors that increase the risk of gastric adenocarcinoma among H. pylori-infected individuals. METHODS: A total of 70 patients with early gastric adenocarcinoma and 121 unrelated healthy controls were examined for H. pylori infection and HLA-DRB1 genotyping. The frequencies of HLA-DRB1 alleles were compared among groups. RESULTS: The allele frequency of DRB1*04051 was significantly higher in patients with gastric adenocarcinoma (17.9%) than in controls (7.9%) (P(correct) = 0.045). The odds ratio of gastric adenocarcinoma associated with the presence of the HLA-DRB1*04051 allele compared with its absence was 2.55 (95% confidence limits, 1.35-4.83). This genetic risk was not associated with H. pylori infection. There was no significant difference in the HLA-DRB1 allele frequency between H. pylori-positive and H. pylori-negative controls. The frequency of genotypes that possessed the DRB1*04051 allele in gastric adenocarcinoma patients (34.3%) was significantly higher than that in H. pylori-negative controls (11.9%) (p = 0.0089) and H. pylori-positive controls (15.2%) (p = 0.0066). CONCLUSION: These findings suggest that immunogenetic factors for susceptibility to gastric adenocarcinoma are present in the host, the HLA-DRB1*04051 allele is a host genetic risk factor for gastric adenocarcinoma, and that this genetic risk is independent of H. pylori infection.


Subject(s)
Adenocarcinoma/microbiology , Genetic Predisposition to Disease , HLA-DR1 Antigen/genetics , Helicobacter Infections/genetics , Helicobacter pylori/genetics , Stomach Neoplasms/microbiology , Adenocarcinoma/genetics , Adenocarcinoma/immunology , Case-Control Studies , Female , Gene Frequency , Genotype , Helicobacter Infections/complications , Helicobacter pylori/immunology , Humans , Japan , Male , Middle Aged , Stomach Neoplasms/genetics , Stomach Neoplasms/immunology
15.
Neurology ; 59(10): 1637-40, 2002 Nov 26.
Article in English | MEDLINE | ID: mdl-12451214

ABSTRACT

A 48-year-old woman with late infantile onset mental retardation developed megacolon. Although the patient had no typical clinical features of Hirschsprung disease-mental retardation syndrome, a new 3-base pair deletion, eliminating an Asn, was identified in the responsible gene ZFHX1B. This suggests that screening for ZFHX1B mutations is warranted even in the absence of typical clinical features of the syndrome.


Subject(s)
Hirschsprung Disease/genetics , Intellectual Disability/genetics , Cloning, Molecular , DNA/genetics , Endoribonucleases , Female , Gene Deletion , Humans , Megacolon/genetics , Middle Aged , Mutation/genetics , Reverse Transcriptase Polymerase Chain Reaction , Syndrome , Trans-Activators/genetics
16.
Aliment Pharmacol Ther ; 16 Suppl 2: 240-4, 2002 Apr.
Article in English | MEDLINE | ID: mdl-11966548

ABSTRACT

BACKGROUND: The relationship between H. pylori infection and body mass indices is controversial. AIM: To investigate the relationship between H. pylori infection and body indices, and to examine the effect of H. pylori eradication therapy on body indices. METHODS: Nine-hundred and thirty-two employees of an industrial corporation were examined for H. pylori infection and body mass indices. Three hundred and two H. pylori-positive cases diagnosed with chronic gastritis by upper gastrointestinal endoscopy or radiography underwent eradication therapy. Body mass indices, serum total cholesterol levels and symptom scores were obtained before and at 12 months after eradication therapy. RESULTS: There was no significant difference in body weight, body mass index (BMI) or serum total cholesterol level between the H. pylori-positive and H. pylori-negative groups. However, body weight and BMI increased significantly 12 months after eradication of H. pylori infection. In contrast, there was no significant difference in body weight and BMI 12 months after eradication therapy in the non-eradication group. Serum total cholesterol levels did not change after eradication therapy in either the eradication or non-eradication groups. CONCLUSION: Eradication of H. pylori infection induced an increase in BMI in industrial workers with chronic gastritis in Japan.


Subject(s)
Body Mass Index , Helicobacter Infections/complications , Helicobacter pylori/isolation & purification , Adult , Female , Gastritis/complications , Gastritis/physiopathology , Helicobacter Infections/microbiology , Helicobacter Infections/physiopathology , Humans , Male , Middle Aged
17.
Angiology ; 52(11): 749-58, 2001 Nov.
Article in English | MEDLINE | ID: mdl-11716327

ABSTRACT

Spontaneous echo contrast in the descending aorta (DA-SEC) was examined as a possible risk factor for cerebral thromboembolism. In 19 patients (10 males, 9 females) in the chronic stage of cerebral infarction, abnormal findings by transesophageal echocardiography, flow dynamics of the common carotid artery (CCA), and hemostatic factors including blood coagulation and fibrinolysis were investigated. In nine patients, DA-SEC was detected, and SEC in left atrium (LA-SEC) was detected in nine patients. The DA-SEC positive group showed decreased blood-flow velocity (BFV) in bilateral CCA, high levels of thrombin-antithrombin III complex (TAT) and prothrombin fragment 1.2 (F1+2), a decrease in platelet count and a slight increase in D-dimer, which means an activated state of thrombin generation and resulting fibrinolysis, compared to the DA-SEC negative group. On the other hand, the LA-SEC positive group showed normal BFV in CCA and only a slight increase in D-dimer. We conclude that the condition producing DA-SEC is a stronger risk factor for cerebral infarction than that producing LA-SEC.


Subject(s)
Aorta, Thoracic/diagnostic imaging , Carotid Arteries/physiopathology , Cerebral Infarction/diagnostic imaging , Cerebral Infarction/physiopathology , Aged , Blood Flow Velocity , Echocardiography, Transesophageal , Female , Heart Atria/physiopathology , Hemostasis , Humans , Male , Ultrasonography, Doppler
18.
FEBS Lett ; 508(1): 53-6, 2001 Nov 09.
Article in English | MEDLINE | ID: mdl-11707267

ABSTRACT

Previous studies from this laboratory have shown that 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor (HCRI) causes apoptotic cell death of a muscle cell-derived cell line, L6 myoblasts, by involving the phosphatidylinositol-3 (PI-3) kinase pathway and tyrosine phosphorylation of several cellular proteins, although the relationship between PI-3 kinase pathway and tyrosine phosphorylation responses remained to be elucidated. Here, we show that HCRI induces tyrosine phosphorylation of catalytic subunit p110 of PI-3 kinase as early as 5 min after addition of HCRI into culture medium. We could not detect the tyrosine phosphorylation of the regulatory subunit p85 of PI-3 kinase under the present experimental conditions. Concomitantly, the kinase activity toward PI in p110 immunoprecipitates was decreased with a similar time course. Furthermore, both herbimycin A and genistein, potent inhibitors of tyrosine kinase activity, inhibited HCRI-induced inhibition of PI-3 kinase activity as well as HCRI-induced apoptotic cell death. Once the catalytic subunit p110 becomes tyrosine-phosphorylated, the regulatory subunit p85 appears to be dissociated from the catalytic subunit, because we observed a decreasing amount of p85 regulatory subunits in p110 immunoprecipitates in response to HCRI treatment. These results strongly suggest the novel function of tyrosine phosphorylation of catalytic subunit p110 of PI-3 kinase in the regulation of its kinase activity. The tyrosine phosphorylation of these catalytic subunits may play an important role in the intracellular signal transduction of apoptotic cell death. To our knowledge, this is the first report that tyrosine phosphorylation of p110 catalytic subunit acts as a negative regulator of its kinase activity.


Subject(s)
Hydroxymethylglutaryl-CoA Reductase Inhibitors/pharmacology , Muscles/cytology , Phosphatidylinositol 3-Kinases/metabolism , Animals , Benzoquinones , Catalytic Domain , Cell Line , Enzyme Inhibitors/pharmacology , Genistein/pharmacology , Lactams, Macrocyclic , Muscles/drug effects , Muscles/enzymology , Phosphatidylinositol 3-Kinases/chemistry , Phosphoinositide-3 Kinase Inhibitors , Phosphorylation , Phosphotyrosine/metabolism , Precipitin Tests , Protein-Tyrosine Kinases/antagonists & inhibitors , Quinones/pharmacology , Rats , Rifabutin/analogs & derivatives , Simvastatin/pharmacology
19.
Biochem Biophys Res Commun ; 289(2): 451-6, 2001 Nov 30.
Article in English | MEDLINE | ID: mdl-11716494

ABSTRACT

Diacylglycerol kinase (DGK) and protein kinase C (PKC) are two different enzyme families that interact with diacylglycerol. Both enzymes contain cysteine-rich C1 domains with a zinc finger-like structure. Most of the C1 domains of PKCs show strong phorbol-12,13-dibutyrate (PDBu) binding with nanomolar dissociation constants (K(d)'s). However, there has been no experimental evidence that phorbol esters bind to the C1 domains of DGKs. We focused on DGK gamma because its C1A domain has a high degree of sequence homology to those of PKCs, and because DGK gamma translocates from the cytoplasm to the plasma membrane following 12-O-tetradecanoylphorbol-13-acetate treatment similar to PKCs. Two C1 domains of DGK gamma (DGK gamma-C1A and DGK gamma-C1B) were synthesized and tested for their PDBu binding along with whole DGK gamma (Flag-DGK gamma) expressed in COS-7 cells. DGK gamma-C1A and Flag-DGK gamma showed strong PDBu binding affinity, while DGK gamma-C1B was completely inactive. Scatchard analysis of DGK gamma-C1A and Flag-DGK gamma gave K(d)'s of 3.1 and 4.4 nM, respectively, indicating that the major PDBu binding site of DGK gamma is C1A. This is the first evidence that DGK gamma is a specific receptor of tumor-promoting phorbol esters.


Subject(s)
Diacylglycerol Kinase/metabolism , Phorbol Esters/metabolism , Amino Acid Sequence , Animals , CHO Cells , COS Cells , Cell Membrane/enzymology , Cricetinae , Cytoplasm/enzymology , Dose-Response Relationship, Drug , Kinetics , Models, Genetic , Molecular Sequence Data , Mutation , Peptides/chemistry , Plasmids/metabolism , Protein Binding , Protein Structure, Tertiary , Protein Transport , Sequence Homology, Amino Acid , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Spectrophotometry , Tetradecanoylphorbol Acetate/pharmacology , Zinc Fingers
20.
J Cardiol ; 38(3): 163-8, 2001 Sep.
Article in Japanese | MEDLINE | ID: mdl-11577613

ABSTRACT

OBJECTIVES: To prevent possible neurologic injury after hypothermic circulatory arrest, aortic arch obstruction with cardiac defects is repaired in one stage using isolated cerebral and myocardial perfusion (ICMP). This study investigated serum S-100 protein(S-100) levels in neonates undergoing ICMP. METHODS: Between February 2000 and January 2001, 19 neonate patients underwent repair of critical congenital heart defects. Seven of these patients with aortic coarctation(n = 3) or interrupted aortic arch (n = 4) with ventricular septal defect(ICMP group) underwent primary total repair. An arterial cannula was inserted either into the ascending aorta or into a polytetrafluoroethylene graft which was anastomosed to the innominate artery. During arch repair, a cross-clamp was placed between the innominate and left carotid arteries, and an end-to-end arch anastomosis was performed with cerebral perfusion and heart beating. During ICMP the flow was reduced to maintain a radial artery pressure of 30-45 mmHg. The remaining 12 patients underwent complete transposition of great arteries(n = 9) or total anomalous pulmonary venous connection(n = 3) using a cardiopulmonary bypass(CPB) with flow of 150-180 ml/kg/min(control group). Sequential blood samples for S-100 determinations were taken after induction of anesthesia, 30 min after aortic declamping(post-ACC), 30 min after CPB, and 24 hr after CPB. RESULTS: There were no early and late deaths. Neurologic symptoms were not observed in any patients. Mean ICMP time in ICMP group was 17 +/- 4 min. In all patients, S-100 showed the highest value post-ACC and then declined with time. There were no differences in S-100 between the groups at any other time point. CONCLUSIONS: Selective cerebral perfusion through the innominate artery may be able to maintain brain circulation.


Subject(s)
Aorta, Thoracic/surgery , Cerebrovascular Circulation/physiology , Coronary Circulation/physiology , Aorta, Thoracic/abnormalities , Aortic Coarctation/surgery , Humans , Infant, Newborn , Perfusion/methods , S100 Proteins/blood
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