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1.
Yonago Acta Med ; 67(2): 124-134, 2024 May.
Article de Anglais | MEDLINE | ID: mdl-38803590

RÉSUMÉ

Background: Patients taking multiple drugs and various health foods often develop acute hepatitis. We hypothesized that the interaction between health foods and drug metabolism was the cause of severe liver injury in these patients. Therefore, we studied changes in the activity of the drug-metabolizing enzyme, cytochrome P450 (CYP), using slimming health food extracts and elucidated the molecular mechanism of liver injury onset through hepatotoxicity evaluation. Methods: For cytotoxicity testing, health food extract samples were added to HepG2 cells derived from hepatic parenchymal cells and culture medium, and cell viability was calculated 48 h after culture. To evaluate CYP3A4 induction, 3-1-10 cells constructed with a reporter linked to CYP3A4 gene were used, and reporter activity was measured 48 h after culture. Results: In the chronological order of the slimming health food intake history of the patient, niacinamide and Gymnema sylvestre extracts strongly inhibited HepG2 cell viability. In contrast, dietary supplements A and Coleus forskohlii extract strongly induced CYP3A4 reporter activity.To confirm CYP3A4 induction in humans, humanized CYP3A/pregnane X receptor (PXR) mice were treated with forskolin. CYP3A4 mRNA expression levels were elevated 3.9 times compared to that of the control group (P < 0.05). Conclusion: Coleus forskohlii extract showed the strongest transcriptional activation of CYP3A4 gene. In a mouse model of human-type drug metabolism, forskolin induced CYP3A4 transcription. Thus, we concluded that CYP3A4 induction by Coleus forskohlii is one of the causes of crucial hepatocellular injury, which is a type of liver injury caused by the active metabolite of acetaminophen produced by CYP3A4.

2.
Biol Trace Elem Res ; 195(1): 71-81, 2020 May.
Article de Anglais | MEDLINE | ID: mdl-31392541

RÉSUMÉ

The essential trace element zinc maintains liver functions. Liver diseases can alter overall zinc concentrations, and hypozincemia is associated with various hepatic pathologies. Modulating systemic zinc through dietary supplementation is potentially useful for liver diseases. We evaluated the usefulness of zinc (NPC-02; acetate formulation) supplementation. We conducted two NPC-02 studies on zinc-deficient patients (serum zinc < 70 µg/dL). Study 1: double-blind, randomized, placebo-controlled trial on 57 subjects with chronic liver diseases comparing serum zinc in patients given NPC-02 (NPC-02 group) versus placebo (Placebo group). Study 2: dose adjustment study on 43 subjects with/without liver diseases to determine proportions maintaining serum zinc target (≥ 80 µg/dL but < 200 µg/dL). In study 1, NPC-02 subjects had higher serum zinc concentrations at week 8 than Placebo subjects (83.2 ± 20.2 and 61.3 ± 12.0, respectively; P < 0.0001), and more NPC-02 than Placebo subjects achieved the serum zinc target (15/27 vs. 1/26). In study 2, the NPC-02-induced serum zinc increase was dose-dependent in subjects both with and without liver diseases (r = 0.5143, P = 0.0022 and r = 0.5753, P = 0.0005, respectively). Interestingly, there was a marginally positive correlation between serum zinc and albumin levels in subjects with but not in those without liver diseases (r = 0.4028, P = 0.0631 and r = 0.1360, P = 0.5567, respectively). NPC-02 dose-dependently increases serum zinc in hypozincemic patients, regardless of liver disease. NPC-02 is a potentially effective therapy for liver cirrhosis, in which zinc deficiency is common. Clinical trial registry number: NCT02337569, NCT02321865.


Sujet(s)
Maladies du foie/sang , Acétate de zinc/sang , Zinc/sang , Sujet âgé , Maladie chronique , Compléments alimentaires , Méthode en double aveugle , Femelle , Humains , Maladies du foie/anatomopathologie , Mâle , Adulte d'âge moyen , Acétate de zinc/administration et posologie
3.
Yonago Acta Med ; 60(3): 135-144, 2017 09.
Article de Anglais | MEDLINE | ID: mdl-28959123

RÉSUMÉ

BACKGROUND: Diuretics are essential for treating acute decompensated heart failure (ADHF), but the response is inconsistent. This study aimed to clarify whether kidney volume as assessed by ultrasound (US) predicts diuretic resistance in patients with ADHF. METHODS: We enrolled 29 patients with ADHF and 32 controls. Height-adjusted kidney volume was assessed by US. We divided patients into two groups based on the median value of total daily use of furosemide (intravenous dose plus 0.5 × oral dose of furosemide equivalents) during 3 days from admission. RESULTS: Patients with ADHF had a significantly smaller left kidney volume than did control subjects (27.7 ± 10.0 vs. 32.8 ± 8.8 mL/m, P < 0.05). Patients in the high-dose furosemide group (≥ 51.7 mg/d) had a significantly lower estimated glomerular filtration rate (eGFR) and a significantly smaller kidney volume than did those in the low-dose furosemide group (eGFR: 43.9 ± 20.4 vs. 60.8 ± 21.6 mL/min/1.73 m2, left kidney volume: 23.2 ± 5.2 vs. 32.6 ± 11.0 mL/m, right kidney volume: 26.5 ± 7.5 vs. 32.6 ± 7.9 mL/m, all P < 0.05). Multivariate logistic analysis showed that left kidney volume, but not eGFR, was independently associated with the requirement of high-dose furosemide (odds ratio: 0.856, 95% confidence interval: 0.735-0.997, P < 0.05). CONCLUSION: Kidney volume as assessed by US is a useful predictor of diuretic resistance in patients with ADHF.

4.
Nihon Shokakibyo Gakkai Zasshi ; 114(7): 1255-1263, 2017.
Article de Japonais | MEDLINE | ID: mdl-28679981

RÉSUMÉ

We conducted a multicenter retrospective study for evaluating the background of and diagnostic opportunity for 651 patients with primary hepatocellular carcinoma (HCC). The etiologies were hepatitis B virus (HBV) in 20.0% of patients, hepatitis C virus (HCV) in 36.3%, and non-B non-C (NBNC) in 43.5%. The characteristics of non-alcoholic NBNC HCC patients included low frequency of liver cirrhosis and high frequency of life style-related diseases. The mean diameter of HCC was approximately 4cm. Most patients were diagnosed using ultrasonography and dynamic computed tomography (CT). However, 18.6% of patients were diagnosed using conventional contrast-enhanced CT. Compliance with the surveillance program for HCC diagnosis was 35.4% in HBV carriers and 49.2% in HCV carriers. The main causes of deviation from the program included undiagnosed HBV and HCV carriers, non-compliance with the surveillance program by physicians, and no medical care for HBV and HCV carriers. For an early diagnosis of HCC, it is essential to improve the diagnoses of HBV and HCV carriers, promote the follow-ups of HBV and HCV carriers in hospitals, re-educate physicians, and identify the risk factors of NBNC HCC.


Sujet(s)
Carcinome hépatocellulaire/diagnostic , Tumeurs du foie/diagnostic , Sujet âgé , Carcinome hépatocellulaire/étiologie , Femelle , Humains , Tumeurs du foie/étiologie , Tumeurs du foie/anatomopathologie , Mâle , Études rétrospectives , Facteurs de risque
5.
Yonago Acta Med ; 60(1): 31-39, 2017 03.
Article de Anglais | MEDLINE | ID: mdl-28331419

RÉSUMÉ

BACKGROUND: Vitamin B12 is stored primarily in the liver, and highly elevated serum vitamin B12 levels occur in acute hepatitis and severe alcoholic liver disease. We evaluated the relationship between vitamin B12 levels and liver disease severity and long term prognosis in patients with chronic viral hepatitis and cirrhosis. METHODS: We enrolled 90 patients (57 men, 33 women) with chronic viral hepatitis and cirrhosis who admitted to our hospital as a prospective cohort study. Overall, 37 patients had chronic hepatitis and 53 had cirrhosis (Child-Pugh A 33, B 13, and C 7); 57 patients had primary liver cancer. Serum vitamin B12 concentration and holotranscobalamin (holoTC) II (active form of vitamin B12) were determined and followed prospectively for at least 5 years. RESULTS: Mean total serum vitamin B12 concentration was significantly higher in Child-Pugh C (1308 ± 599 pg/mL) compared to those with chronic hepatitis (655 ± 551 pg/mL), Child-Pugh A (784 ± 559 pg/mL), and Child-Pugh B (660 ± 464 pg/mL) (P = 0.036) Presence of primary liver cancer also influenced serum vitamin B12 levels [657 (167-2956) vs. 432 (189-2956); P = 0.015]. Patients were divided into quartiles by vitamin B12 level. Patients without primary liver cancer in quartile 4 (≥ 880 pg/mL) demonstrated significantly poorer prognosis than those in quartiles 1-3 (< 880 pg/mL) (P = 0.023). The percentage of holohaptocorrin (holoHC) [(total vitamin B12 - holoTC II) × 100] was significantly higher in Child-Pugh B and C 86 (80-87)% than chronic hepatitis and Child-Pugh A 77 (31-89)% (P = 0.006) Multivariate analysis indicated serum vitamin B12 levels (HR = 1.001, P = 0.029) as a prognostic factor. CONCLUSION: Falsely elevated serum vitamin B12 levels mainly composed of increased holoHC were associated with severity (Child-Pugh C and primary liver cancer) and prognosis in chronic viral liver disease.

6.
Yonago Acta Med ; 60(1): 40-46, 2017 03.
Article de Anglais | MEDLINE | ID: mdl-28331420

RÉSUMÉ

BACKGROUND: Procalcitonin (PCT) is a known diagnostic marker of bacterial infection. There are no previous reports of PCT concerning acute liver failure (ALF). We evaluated the clinical value of serum PCT levels in patients with ALF. METHODS: Forty-four patients with acute hepatitis (19 men and 25 women; median age, 40 years; range, 20-79 years) were retrospectively enrolled from January 2001 and June 2015. PCT levels were measured by saved serum samples obtained within 3 days after admission. ALF was defined as prothrombin time (PT) < 40% regardless of hepatic encephalopathy. RESULTS: Serum PCT levels were significantly higher in the patients with ALF (n = 16) than in those with non-ALF (n = 28) [0.25 (0.13-2.66) ng/mL vs. 0.165 (0.03-1.08), P = 0.00967]. Creatinine, total bilirubin, and direct bilirubin were positively correlated, and PT was negatively correlated with PCT. Receiver operating characteristic curve analysis showed an area under the curve of 0.74 for detecting ALF. With a PCT cut-off value of 0.5 ng/mL, the presence of ALF could be demonstrated with low sensitivity (37.5%) and high specificity (96.5%) with high positive (85.7%) and negative (72.9%) predictive value. Multivariate analysis showed that PCT was an independent factor associated with the presence of ALF. The cumulative survival rate was also significantly lower in patients with PCT ≥ 0.5 ng/mL (P = 0.0314), but it was not an independent prognostic factor. CONCLUSION: Serum PCT level was significantly higher in patients with ALF.

7.
World J Hepatol ; 8(22): 933-41, 2016 Aug 08.
Article de Anglais | MEDLINE | ID: mdl-27574547

RÉSUMÉ

AIM: To examine the effects of the endothelin type A receptor antagonist ambrisentan on hepatic steatosis and fibrosis in a steatohepatitis mouse model. METHODS: Fatty liver shionogi (FLS) FLS-ob/ob mice (male, 12 wk old) received ambrisentan (2.5 mg/kg orally per day; n = 8) or water as a control (n = 5) for 4 wk. Factors were compared between the two groups, including steatosis, fibrosis, inflammation, and endothelin-related gene expression in the liver. RESULTS: In the ambrisentan group, hepatic hydroxyproline content was significantly lower than in the control group (18.0 µg/g ± 6.1 µg/g vs 33.9 µg/g ± 13.5 µg/g liver, respectively, P = 0.014). Hepatic fibrosis estimated by Sirius red staining and areas positive for α-smooth muscle actin, indicative of activated hepatic stellate cells, were also significantly lower in the ambrisentan group (0.46% ± 0.18% vs 1.11% ± 0.28%, respectively, P = 0.0003; and 0.12% ± 0.08% vs 0.25% ± 0.11%, respectively, P = 0.047). Moreover, hepatic RNA expression levels of procollagen-1 and tissue inhibitor of metalloproteinase-1 (TIMP-1) were significantly lower by 60% and 45%, respectively, in the ambrisentan group. Inflammation, steatosis, and endothelin-related mRNA expression in the liver were not significantly different between the groups. CONCLUSION: Ambrisentan attenuated the progression of hepatic fibrosis by inhibiting hepatic stellate cell activation and reducing procollagen-1 and TIMP-1 gene expression. Ambrisentan did not affect inflammation or steatosis.

8.
Nephron ; 132(1): 25-32, 2016.
Article de Anglais | MEDLINE | ID: mdl-26581096

RÉSUMÉ

AIMS: The kidney becomes atrophic in advanced chronic kidney disease, and renal size and parenchymal volume correlate with renal function. However, alterations in renal parenchymal volume have not been adequately studied in terms of the renal cortex and medulla. We investigated the relationship between the changes in the renal cortex and medulla and renal function. METHODS: Renal ultrasound (US) parameters including renal length, parenchymal thickness, cortical thickness and medullary thickness were assessed in 176 subjects, who were categorized into 4 groups based on the estimated glomerular filtration rate (ml/min/1.73 m2): group 1, ≥ 90; group 2, ≥ 60 but < 90; group 3, ≥ 30 but < 60; and group 4, < 30. Renal US parameters in both kidneys were compared among the 4 groups. RESULTS: We found stepwise associations in renal length, cortical thickness and parenchymal thickness with decreased renal function. Medullary thickness showed no changes among groups 1-3. Multiple linear regression analysis including sex, age and renal US parameters showed that only renal length was an independent predictor of renal function. When analyzed in groups 1-3, cortical thickness was the strongest associated parameter. Lower cortical left/right ratio (left cortical thickness/right cortical thickness) showed a stepwise association with a decrease in renal function. CONCLUSION: Renal length and cortical thickness measured by US were correlated with renal function. In particular, left cortical thickness could help to detect early changes in renal function.


Sujet(s)
Cortex rénal/imagerie diagnostique , Insuffisance rénale chronique/imagerie diagnostique , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Évolution de la maladie , Femelle , Débit de filtration glomérulaire , Humains , Tests de la fonction rénale , Médulla rénale/imagerie diagnostique , Mâle , Adulte d'âge moyen , Valeur prédictive des tests , Échographie , Jeune adulte
9.
Nephrology (Carlton) ; 21(12): 1056-1062, 2016 Dec.
Article de Anglais | MEDLINE | ID: mdl-26667380

RÉSUMÉ

AIM: Acoustic radiation force impulse is a noninvasive method for evaluating tissue elasticity on ultrasound. Renal shear wave velocity measured by this technique has not been fully investigated in patients with renal disease. The aim of the present study was to compare renal shear wave velocity in end-stage renal disease patients and that in patients without chronic kidney disease and to investigate influencing factors. METHODS: Renal shear wave velocities were measured in 59 healthy young subjects (control group), 31 subjects without chronic kidney disease (non-CKD group), and 39 end-stage renal disease patients (ESRD group). Each measurement was performed 10 times at both kidneys, and the mean value of eight of 10 measurements, excluding the maximum and minimum values, was compared. RESULTS: Renal shear wave velocity could be measured in all subjects. Renal shear wave velocity in the control group was higher than in the non-CKD group and in the ESRD group, and no difference was found between the non-CKD group and the ESRD group. Age and depth were negatively correlated to the renal shear wave velocity. In multiple regression analysis, age and depth were independent factors for renal shear wave velocity, while renal impairment was not. There was no difference between the non-CKD group and the ESRD group, even when ages were matched and depth was adjusted. CONCLUSION: Renal shear wave velocity was not associated with advanced renal impairment. However, it reflected alteration of renal aging, and this technique may be useful to detect renal impairment in the earlier stages.


Sujet(s)
Imagerie d'élasticité tissulaire , Défaillance rénale chronique/imagerie diagnostique , Rein/imagerie diagnostique , Insuffisance rénale chronique/imagerie diagnostique , Adolescent , Adulte , Facteurs âges , Sujet âgé , Sujet âgé de 80 ans ou plus , Études cas-témoins , Élasticité , Femelle , Humains , Rein/anatomopathologie , Rein/physiopathologie , Défaillance rénale chronique/anatomopathologie , Défaillance rénale chronique/physiopathologie , Mâle , Adulte d'âge moyen , Valeur prédictive des tests , Insuffisance rénale chronique/anatomopathologie , Insuffisance rénale chronique/physiopathologie , Reproductibilité des résultats , Jeune adulte
10.
J Hepatol ; 63(6): 1360-7, 2015 Dec.
Article de Anglais | MEDLINE | ID: mdl-26232269

RÉSUMÉ

BACKGROUND & AIMS: The aim of this study was to investigate the feasibility of ablative margin (AM) grading by magnetic resonance imaging (MRI) with Gd-EOB-DTPA administered prior to radiofrequency ablation (RFA), and to identify factors for achieving a sufficient AM and predictors for local tumor progression. METHODS: A total of 124 hepatocellular carcinomas (HCCs) were treated by RFA after Gd-EOB-DTPA administration. MRI and enhanced CT were performed within seven hours and one month after RFA. The AM assessment was categorized using three grades: AM (+), low-intensity area with continuous high-intensity rim; AM zero, low-intensity area with discontinuous high-intensity rim; and AM (-), low-intensity area extends beyond the high-intensity rim. Patients were followed and local tumor progression was observed. RESULTS: AM (+), AM zero, AM (-), and indeterminate were found in 34, 33, 26, and 31 nodules, respectively. The overall agreement rate between MRI and enhanced CT for the diagnosis of AM was 56.8%. The κ coefficient was 0.326 (p<0.001), indicating moderate agreement. Multivariate logistic regression analysis showed that a significant factor for the achievement of AM (+) on MRI was no contiguous vessels. The cumulative local tumor progression rates (0% at 1, 2, and 3 years) in 33 AM (+) nodules were significantly lower than those (3.6%, 11.5%, and 18.3% at 1, 2, and 3 years respectively) in 32 AM zero nodules. A multivariate Cox proportional hazards model identified tumor size as an independent predictor for local tumor progression. CONCLUSION: Gd-EOB-DTPA-MRI enabled an early assessment of RFA effectiveness in the majority ofHCC nodules. Local tumor progression was not detected in AM (+) nodules during the follow-up.


Sujet(s)
Carcinome hépatocellulaire/chirurgie , Ablation par cathéter , Tumeurs du foie/chirurgie , Sujet âgé , Carcinome hépatocellulaire/anatomopathologie , Produits de contraste , Évolution de la maladie , Femelle , Acide gadopentétique , Humains , Estimation de Kaplan-Meier , Tumeurs du foie/anatomopathologie , Imagerie par résonance magnétique/méthodes , Mâle , Adulte d'âge moyen , Tomodensitométrie
11.
Mol Clin Oncol ; 3(3): 655-662, 2015 May.
Article de Anglais | MEDLINE | ID: mdl-26137283

RÉSUMÉ

The aim of the present study was to predict the effects of transarterial infusion (TAI) chemotherapy based on early changes in α-fetoprotein (AFP) and des-γ-carboxy prothrombin (DCP) in patients with advanced hepatocellular carcinoma (HCC). Seventy-four patients who underwent TAI with cisplatin, 5-fluorouracil, mitomycin C and epirubicin for advanced HCC were enrolled. Antitumor responses were evaluated 6 months after TAI. Rapid and early responses were defined as the ratio of AFP or DCP after 1 week and 1 month compared to baseline. A total of 5, 10, 17 and 42 patients had complete response (CR), partial response (PR), stable disease (SD) or progressive disease (PD), respectively. Early AFP response was significantly lower in the CR+PR compared to the SD+PD groups (P<0.01). The early DCP response was significantly lower in the CR+PR compared to the SD+PD. The sensitivity and specificity of rapid and early AFP responses in the CR+PR were 0.78 and 0.72, and 0.80 and 0.73, respectively, and those of rapid and early DCP responses were 0.67 and 0.65, and 0.77 and 0.71, respectively. The combination of AFP and DCP responses had higher specificity compared to AFP or DCP alone responses. Patients were divided into responder and non-responder groups to evaluate the prediction of survival outcome. Early responders of AFP, DCP and AFP+DCP, who were divided based on the cut-off values of CR+PR survived significantly longer than the non-responders (P<0.05). In conclusion, rapid or early responses of AFP and/or DCP levels 1 and 4 weeks after TAI chemotherapy helped to predict the treatment effects.

12.
Oncol Lett ; 5(5): 1505-1508, 2013 May.
Article de Anglais | MEDLINE | ID: mdl-23760591

RÉSUMÉ

The aim of this study was to clarify the clinical features of patients with isolated HCC metastases to the heart. A 66-year-old female hospitalized with a hepatocellular carcinoma (HCC) ranging from the right to the left lobe and with a tumor thrombus in the main portal vein, was treated with intraarterial cisplatin, 5-fluouracil, adriamycin and mitomycin. Computed tomography (CT) one month later revealed that the HCC had progressed with multiple lung metastases and moderate ascites. The patient had no symptoms. Magnetic resonance imaging (MRI) and echocardiography revealed a round, movable tumor with a diameter of 2 cm in the right atrium (RA). The patient succumbed to HCC five months later. An autopsy revealed HCC with portal tumor thrombi and metastases to the lungs, inferior vena cava (IVC) and RA. The metastases in the RA and IVC were not continous with the intrahepatic tumor and were histologically attached to the endocardium and endothelium, respectively. An isolated metastasis of a HCC of the RA and IVC is extremely rare. In conclusion, although the majority of isolated metastases of HCC to the heart were diagnosed by echocardiography and were treated with mainly surgery, they had poor prognosis. The echocardiography should be performed for patients with advanced HCC. A novel treatment including molecular targeted drugs is required.

13.
Clin Cancer Res ; 18(6): 1641-54, 2012 Mar 15.
Article de Anglais | MEDLINE | ID: mdl-22275507

RÉSUMÉ

PURPOSE: Ras/Raf/mitogen-activated protein-extracellular signal-regulated kinase (ERK) kinase (MEK)/ERK signaling is critical for tumor cell proliferation and survival. Selumetinib is a potent, selective, and orally available MEK1/2 inhibitor. In this study, we evaluated the therapeutic efficacy of selumetinib alone or with cediranib, an orally available potent inhibitor of all three VEGF receptor (VEGFR) tyrosine kinases, in murine orthotopic non-small cell lung carcinoma (NSCLC) models. EXPERIMENTAL DESIGN: NCI-H441 or NCI-H460 KRAS-mutant human NSCLC cells were injected into the lungs of mice. Mice were randomly assigned to treatment with selumetinib, cediranib, paclitaxel, selumetinib plus cediranib, or control. When controls became moribund, all animals were sacrificed and assessed for lung tumor burden and locoregional metastasis. Lung tumors and adjacent normal tissues were subjected to immunohistochemical analyses. RESULTS: Selumetinib inhibited lung tumor growth and, particularly at higher dose, reduced locoregional metastasis, as did cediranib. Combining selumetinib and cediranib markedly enhanced their antitumor effects, with near complete suppression of metastasis. Immunohistochemistry of tumor tissues revealed that selumetinib alone or with cediranib reduced ERK phosphorylation, angiogenesis, and tumor cell proliferation and increased apoptosis. The antiangiogenic and apoptotic effects were substantially enhanced when the agents were combined. Selumetinib also inhibited lung tumor VEGF production and VEGFR signaling. CONCLUSIONS: In this study, we evaluated therapy directed against MEK combined with antiangiogenic therapy in distinct orthotopic NSCLC models. MEK inhibition resulted in potent antiangiogenic effects with decreased VEGF expression and signaling. Combining selumetinib with cediranib enhanced their antitumor and antiangiogenic effects. We conclude that combining selumetinib and cediranib represents a promising strategy for the treatment of NSCLC.


Sujet(s)
Benzimidazoles/administration et posologie , Carcinome pulmonaire non à petites cellules/traitement médicamenteux , Tumeurs du poumon/traitement médicamenteux , Mitogen-Activated Protein Kinases/antagonistes et inhibiteurs , Quinazolines/administration et posologie , Inhibiteurs de l'angiogenèse/usage thérapeutique , Animaux , Protocoles de polychimiothérapie antinéoplasique/usage thérapeutique , Benzimidazoles/usage thérapeutique , Lignée cellulaire tumorale , Prolifération cellulaire/effets des médicaments et des substances chimiques , Évolution de la maladie , Humains , Mâle , Souris , Souris nude , Thérapie moléculaire ciblée , Néovascularisation pathologique/traitement médicamenteux , Paclitaxel/administration et posologie , Protéines proto-oncogènes/génétique , Protéines proto-oncogènes p21(ras) , Quinazolines/usage thérapeutique , Récepteurs aux facteurs de croissance endothéliale vasculaire/antagonistes et inhibiteurs , Tests d'activité antitumorale sur modèle de xénogreffe , Protéines G ras/génétique
14.
Hepatogastroenterology ; 58(110-111): 1638-42, 2011.
Article de Anglais | MEDLINE | ID: mdl-22086693

RÉSUMÉ

BACKGROUND/AIMS: The purpose of this study was to investigate whether bubble images after radiofrequency ablation (RFA) can predict the ablated area. METHODOLOGY: The spread of bubbles 5 minutes after RFA were compared with the unenhanced area of virtual sonography with magnetic navigation in two RFA methods: expandable needle and cool-tip needle. RESULTS: Thirty-one hepatocellular carcinoma nodules were treated by RFA with either an expandable needle or cool-tip needle (n=14 and n=17, respectively) and examined. In the 14 nodules treated by expandable needle, bubble images (puncture direction; r=0.833, p=0.0002, perpendicular direction; r=0.803, p=0.0005) were closely correlated with the unenhanced area of virtual sonography. On the other hand, in 17 nodules treated by cool-tip needle, there was no correlation between the bubble images and virtual sonography (puncture direction; r=0.590, p=0.0127, perpendicular direction; r=0.342, p=0.180). CONCLUSIONS: The observation of bubbles with the expandable needle can accurately predict the ablated area and is helpful for assessing local control of RFA.


Sujet(s)
Carcinome hépatocellulaire/imagerie diagnostique , Carcinome hépatocellulaire/chirurgie , Ablation par cathéter/méthodes , Tumeurs du foie/imagerie diagnostique , Tumeurs du foie/chirurgie , Sujet âgé , Femelle , Humains , Modèles linéaires , Imagerie par résonance magnétique , Mâle , Microbulles , Adulte d'âge moyen , Aiguilles , Récidive tumorale locale , Tomodensitométrie , Résultat thérapeutique , Échographie
15.
Dig Endosc ; 22(2): 133-6, 2010 Apr.
Article de Anglais | MEDLINE | ID: mdl-20447208

RÉSUMÉ

A 45-year-old Philippine woman who came from Mindanao Island was admitted to our hospital with a complaint of epigastric discomfort. Abdominal ultrasonography and computed tomography demonstrated a network pattern and linear calcification in the liver. Laparoscopic examination showed numerous yellowish, small speckles over the liver surface. The liver surface was separated into many small blocks by groove-like depressions, demonstrating a so-called tortoise shell pattern. Conventional colonoscopy and narrow-band imaging showed irregular areas of yellowish mucosa, and diminished vascular network and increased irregular microvessels extending from the descending colon to the rectum. Liver biopsy showed many Schistosoma japonicum eggs in Glisson's capsule and colon biopsy showed many S. japonicum eggs in the submucosal layer. These findings established a diagnosis of schistosomiasis japonica. The present case is imported schistosomiasis japonica. Even though new cases have not occurred recently in Japan, we should remain aware of schistosomiasis japonica for patients who came from foreign epidemic areas.


Sujet(s)
Coloscopie , Laparoscopie , Schistosomiase artérioveineuse/diagnostic , Femelle , Humains , Adulte d'âge moyen , Schistosomiase artérioveineuse/étiologie , Schistosomiase artérioveineuse/thérapie
16.
Clin Imaging ; 34(1): 60-4, 2010.
Article de Anglais | MEDLINE | ID: mdl-20122522

RÉSUMÉ

This study investigated whether contrast-enhanced sonography can accurately predict the ablated area by radiofrequency ablation using virtual sonography by computed tomography as a gold standard. Thirty-one hepatocellular carcinoma nodules were treated by radiofrequency ablation and then examined. The defect of contrast-enhanced sonography (puncture direction: r=.868, P<.0001; perpendicular direction; r=.925, P<.0001) was closely correlated with the unenhanced area of virtual sonography. Contrast-enhanced sonography can be used for early and accurate prediction of the ablated area and is helpful for assessing local control of radiofrequency ablation.


Sujet(s)
Carcinome hépatocellulaire/imagerie diagnostique , Carcinome hépatocellulaire/chirurgie , Tumeurs du foie/imagerie diagnostique , Tumeurs du foie/chirurgie , Polyosides , Chirurgie assistée par ordinateur/méthodes , Échographie/méthodes , Produits de contraste , Humains , Magnétisme , Mâle , Adulte d'âge moyen , Reproductibilité des résultats , Sensibilité et spécificité , Résultat thérapeutique
17.
Hepatogastroenterology ; 56(90): 437-41, 2009.
Article de Anglais | MEDLINE | ID: mdl-19579616

RÉSUMÉ

BACKGROUND/AIMS: Recently, complementary alternative medicine is actively performed for cancer therapy. We investigated the effectiveness of supplementary food containing superfine dispersed lentinan (beta-1,3-glucan) in patients with unresectable or recurrent hepatocellular carcinoma in a multi-center study. METHODOLOGY: Peripheral blood was collected prior to the test food ingestion and was incubated with fluorescein-labeled lentinan. The rates of lentinan-binding CD14+ monocytes were determined by flow cytometry. Patient survival times were followed up for 3 years. RESULTS: Thirty-six patients were eligible among 40 enrolled patients. Median survival time of eligible patients was 13.6 months (95% confidence interval, 8.7-18.9 months). Survival times of patients who ingested test food for a mean period of 47 weeks (range, 26 to 145 weeks) were significantly longer than that of patients who ingested for 7 to 12 weeks (p < 0.05). The rates of lentinan-binding cells in CD14+ monocytes showed individual variations (0.1-19.7%; Median, 1.6%). Survival times (median survival time, 16.3 months) of lentinan-high-binding group were significantly longer than those (median survival time, 12.5 months) of lentinan-low-binding group (p < 0.05). CONCLUSIONS: A superfine dispersed lentinan-containing supplementary food is effective for hepatocellular carcinoma patients' survival. Long-time ingestion is preferable. Assessment of lentinan-binding CD14+ monocytes is a promising prognostic predictor.


Sujet(s)
Antinéoplasiques/usage thérapeutique , Carcinome hépatocellulaire/traitement médicamenteux , Lentinane/usage thérapeutique , Tumeurs du foie/traitement médicamenteux , Administration par voie orale , Sujet âgé , Sujet âgé de 80 ans ou plus , Antinéoplasiques/administration et posologie , Compléments alimentaires , Femelle , Humains , Lentinane/administration et posologie , Mâle , Adulte d'âge moyen , Taux de survie , Résultat thérapeutique
18.
Nihon Shokakibyo Gakkai Zasshi ; 106(2): 247-52, 2009 Feb.
Article de Japonais | MEDLINE | ID: mdl-19194100

RÉSUMÉ

An eighty-six-year-old man was admitted to our hospital for bacterial septic shock due to splenic abscess. He had undergone percutaneous coronary intervention 3 weeks earlier. Percutaneous splenic abscess drainage was urgently performed under ultrasonography, and then the general state of the patient rapidly improved. Staphylococcus hemolyticus was isolated from the splenic abscess. We reported that percutaneous catheter drainage was effective for splenic abscess.


Sujet(s)
Abcès/chirurgie , Drainage/méthodes , Maladies de la rate/chirurgie , Abcès/étiologie , Sujet âgé de 80 ans ou plus , Humains , Mâle , Infections à staphylocoques/complications , Staphylococcus haemolyticus
19.
Intern Med ; 48(1): 11-7, 2009.
Article de Anglais | MEDLINE | ID: mdl-19122351

RÉSUMÉ

BACKGROUND AND AIM: This study evaluated the outcomes of antiviral therapy with nucleotide analogs for hepatitis B virus infection-related hepatocellular carcinoma. METHODS: Thirty patients orally received nucleotide analogs and, as a matched control group, 20 patients who were not treated with nucleotide analogs were selected. We compared changes in liver function, HCC recurrence and survival rate between both groups. RESULTS: In the nucleotide analog group, serum albumin, AST and ALT were significantly improved compared with baseline values. The Child-Pugh score was significantly decreased in the nucleotide analog group. Furthermore, of the 36 patients curatively treated with the initial treatment, more patients in the nucleotide analog group improved or maintained their Child-Pugh score at the time of recurrent HCC than in the control group (p=0.023). The cumulative recurrent-free survival rate of HCC did not significantly differ between the two groups; however, the cumulative survival rates of not only curative-treated patients but also all patients in the nucleotide analog group were significantly higher than those of patients in the control group (p=0.047 and p=0.02, respectively). CONCLUSION: The results suggest that nucleotide analog treatment increases the survival rate in patients with HCC by contributing to the improvement of remnant liver function.


Sujet(s)
Carcinome hépatocellulaire/traitement médicamenteux , Virus de l'hépatite B , Hépatite B/traitement médicamenteux , Tumeurs du foie/traitement médicamenteux , Nucléotides/usage thérapeutique , Sujet âgé , Carcinome hépatocellulaire/mortalité , Carcinome hépatocellulaire/physiopathologie , Femelle , Hépatite B/mortalité , Hépatite B/physiopathologie , Humains , Tests de la fonction hépatique , Tumeurs du foie/mortalité , Tumeurs du foie/physiopathologie , Mâle , Adulte d'âge moyen , Nucléotides/composition chimique , Taux de survie/tendances
20.
Hepatol Res ; 38(8): 847-50, 2008 Aug.
Article de Anglais | MEDLINE | ID: mdl-18479416

RÉSUMÉ

An 80-year-old woman with hepatic encephalopathy and esophagogastric varices was admitted. Doppler sonography and arteriography demonstrated an arterioportal fistula in the right anterior superior segment of the liver. Two attempts at transcatheter arterial embolization failed to manage the fistula and portacaval collaterals. We carried out hepatectomy and balloon-occluded retrograde transvenous obliteration, by which the portal flow changed from hepatofugal to hepatopetal. The resected specimen demonstrated multiple small holes in the right portal vein, which are arterioportal fistula. The underlying liver was normal. After treatment, esophagogastric varices and hepatic encephalopathy were markedly improved. Hepatectomy is useful as a reliable therapy for arterioportal fistula in case of failure of transarterial embolization.

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