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Kikuta J, Kamagata K, Abe M, Andica C, Saito Y, Takabayashi K, Uchida W, Naito H, Tabata H, Wada A, Tamura Y, Kawamori R, Watada H, Aoki S. Effects of Arterial Stiffness on Cerebral WM Integrity in Older Adults: A Neurite Orientation Dispersion and Density Imaging and Magnetization Transfer Saturation Imaging Study. AJNR Am J Neuroradiol 2022; 43:1706-1712. [PMID: 36396335 DOI: 10.3174/ajnr.a7709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/15/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND AND PURPOSE Arterial stiffness is reported to be able to cause axonal demyelination or degeneration. The present study aimed to use advanced MR imaging techniques to examine the effect of arterial stiffness on the WM microstructure among older adults. MATERIALS AND METHODS Arterial stiffness was measured using the cardio-ankle vascular elasticity index (CAVI). The high-CAVI (mean CAVI ≥ 9 points) and the low-CAVI groups (mean CAVI < 9 points) were created. The neuronal fiber integrity of the WM was evaluated by neurite orientation dispersion and density imaging and magnetization transfer saturation imaging. Tract-Based Spatial Statistics and the tracts-of-interest analysis were performed. Specific WM regions (corpus callosum, internal capsule, anterior thalamic radiation, corona radiata, superior longitudinal fasciculus, forceps minor, and inferior fronto-occipital fasciculus) were selected in the tracts-of-interest analysis. RESULTS In Tract-Based Spatial Statistics, the high-CAVI group showed a significantly lower myelin volume fraction value in the broad WM and significantly higher radial diffusivity and isotropic volume fraction values in the corpus callosum, forceps minor, inferior fronto-occipital fasciculus, internal capsule, corona radiata, and anterior thalamic radiation than the low-CAVI group. In tracts-of-interest analysis using multivariate linear regression, significant associations were found between the mean CAVI and radial diffusivity in the anterior thalamic radiation and the corona radiata; isotropic volume fraction in the anterior thalamic radiation and the corona radiata; and myelin volume fraction in the superior longitudinal fasciculus (P < .05). Additionally, partial correlation coefficients were observed for the significant associations of executive function with radial diffusivity and myelin volume fraction (P < .05). CONCLUSIONS Arterial stiffness could be associated with demyelination rather than axonal degeneration.
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Affiliation(s)
- J Kikuta
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - K Kamagata
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - M Abe
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - C Andica
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.).,Faculty of Health Data Science (C.A.), Juntendo University, Chiba, Japan
| | - Y Saito
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - K Takabayashi
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - W Uchida
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - H Naito
- Metabolism and Endocrinology (H.N., Y.T., R.K., H.W.)
| | - H Tabata
- Sportology Center (H.T., Y.T., R.K., H.W.), Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - A Wada
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
| | - Y Tamura
- Metabolism and Endocrinology (H.N., Y.T., R.K., H.W.).,Sportology Center (H.T., Y.T., R.K., H.W.), Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - R Kawamori
- Metabolism and Endocrinology (H.N., Y.T., R.K., H.W.).,Sportology Center (H.T., Y.T., R.K., H.W.), Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - H Watada
- Metabolism and Endocrinology (H.N., Y.T., R.K., H.W.).,Sportology Center (H.T., Y.T., R.K., H.W.), Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - S Aoki
- From the Departments of Radiology (J.K., K.K., M.A., C.A., Y.S., K.T., W.U., A.W., S.A.)
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Sakamoto A, Ingawa S, Chow C, Naito H. Effects of voluntary hypoventilation on exercise duration and physiological responses during continuous exercise. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.039] [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: 11/17/2022]
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Ozaki H, Kato G, Nakagata T, Nakamura T, Nakada K, Kitada T, Katamoto S, Naito H. Decrescent intensity training concurrently improves maximal anaerobic power, maximal accumulated oxygen deficit, and maximal oxygen uptake. Physiol Int 2019. [PMID: 31859528 DOI: 10.1556/2060.106.2019.32] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This study aimed to investigate the effects of a gradually decreasing intensity training from that corresponding to maximal anaerobic power (MAnP) to that of near maximal oxygen uptake ([Formula: see text]) (decrescent intensity training) on MAnP, maximal accumulated oxygen deficit (MAOD), and [Formula: see text] in untrained young men. Seventeen untrained young men were randomly divided into either a training (TR; n = 9) group or a control (CON; n = 8) group. The TR group performed the decrescent intensity training, whereas the CON group did not perform any exercises. The mean training time per session throughout the training period was 275 ± 135 s. There was a Group × Time interaction for both absolute and relative (p < 0.01) values of [Formula: see text], MAOD, and MAnP. The TR group had significantly increased values for all variables after the 8-week training program, and the relative values of all variables were significantly higher in the TR group than in the CON group. Muscle thicknesses in the anterior and posterior aspects of the thigh and maximal isokinetic knee extension and flexion strengths improved only in the TR group (p < 0.05). A single-exercise training with gradually decreasing intensity from that corresponding to the MAnP to that of approximately 100% [Formula: see text] improves MAnP, MAOD, and [Formula: see text] concurrently, despite the short training time per session.
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Affiliation(s)
- H Ozaki
- School of Sport and Health Science, Tokai Gakuen University, Miyoshi, Japan.,Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
| | - G Kato
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
| | - T Nakagata
- Sportology Center, Juntendo University Graduate School of Medicine, Bunkyo-ku, Japan
| | - T Nakamura
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
| | - K Nakada
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
| | - T Kitada
- Institute of Innovation for Future Society, Nagoya University, Nagoya, Japan
| | - S Katamoto
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
| | - H Naito
- Graduate School of Health and Sports Science, Juntendo University, Inzai, Japan
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Nakagata T, Yamada Y, Naito H. Energy expenditure, recovery oxygen consumption, and substrate oxidation during and after body weight resistance exercise with slow movement compared to treadmill walking. Physiol Int 2019; 105:371-385. [PMID: 30587026 DOI: 10.1556/2060.105.2018.4.27] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The benefit of body weight resistance exercise with slow movement (BWRE-slow) for muscle function is well-documented, but not for energy metabolism. We aimed to examine physiological responses [e.g., energy expenditure (EE), respiratory exchange ratio (RER), and blood lactate (La)] during and after BWRE-slow compared to EE-matched treadmill walking (TW). Eight healthy young men (23.4 ± 1.8 years old, 171.2 ± 6.2 cm, 63.0 ± 4.8 kg) performed squat, push-up, lunge, heel-raise, hip-lift, and crunch exercises with BWRE-slow modality. Both the concentric and eccentric phases were set to 3 s. A total of three sets (10 repetitions) with 30 s rest between sets were performed for each exercise (26.5 min). On another day, subjects walked on a treadmill for 26.5 min during which EE during exercise was matched to that of BWRE-slow with the researcher controlling the treadmill speed manually. The time course changes of EE and RER were measured. The EE during exercise for BWRE-slow (92.6 ± 16.0 kcal for 26.5 min) was not significantly different from the EE during exercise for TW (95.5 ± 14.1 kcal, p = 0.36). BWRE-slow elicited greater recovery EE (40.55 ± 3.88 kcal for 30 min) than TW (37.61 ± 3.19 kcal, p = 0.029). RER was significantly higher in BWRE-slow during and 0-5 min after exercise, but became significantly lower during 25-30 min after exercise, suggesting greater lipid oxidation was induced about 30 min after exercise in BWRE-slow compared to TW. We also indicated that BWRE-slow has 3.1 metabolic equivalents in average, which is categorized as moderate-intensity physical activity.
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Affiliation(s)
- T Nakagata
- 1 Graduate School of Health and Sports Science, Juntendo University , Chiba, Japan.,2 National Institute of Health and Nutrition, National Institute of Biomedical Innovation, Health and Nutrition , Tokyo, Japan
| | - Y Yamada
- 2 National Institute of Health and Nutrition, National Institute of Biomedical Innovation, Health and Nutrition , Tokyo, Japan
| | - H Naito
- 1 Graduate School of Health and Sports Science, Juntendo University , Chiba, Japan
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Inoue K, Ueno T, Akishige N, Soeta T, Tsuchiya T, Nakayama S, Shima K, Goto S, Takahashi M, Naitoh T, Naito H. What is the optimal risk scoring for predicting complications after colorectal surgery in elderly patients? International Journal of Surgery Open 2019. [DOI: 10.1016/j.ijso.2019.11.007] [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: 10/25/2022]
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Ueda T, Mizuguchi K, Tsuji T, Tabayashi N, Abe T, Naito H, Takewa Y, Taniguchi S. Regulation of Perfusion Pressure during Cardiopulmonary bypass using Sevoflurane. Int J Artif Organs 2018. [DOI: 10.1177/039139880102400106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
In hypothermic cardiopulmonary bypass (CPB), various vasodilators are used to control the perfusion pressure. These agents, however, often decrease the pressure excessively, and the low perfusion pressure may persist until the end of CPB. In this study we evaluate the safety and characteristics of the regulation of perfusion pressure during CPB using a volatile anesthetic, sevoflurane which has an extremely low partition coefficient. Twenty adult patients who underwent cardiac surgery were studied. Sevoflurane was applied by a vaporizer inserted into the oxygenator gas supply line. Pump flows were fixed at 2.4 L/min/m2 during the hypothermic period. Sevoflurane concentration was adjusted to keep mean arterial pressure (MAP) between 40 and 70 mmHg during CPB. Hemodynamic and metabolic parameters were measured and compared to the group we previously treated with chlorpromazine. In all cases, MAP could be maintained adequately. In the sevoflurane group, systemic vascular resistance indices (SVRI) during the rewarming period and at the end of CPB were higher, and doses of norepinephrine needed at the end of CPB were significantly lower than in the chlorpromazine group. The regulation of perfusion pressure during CPB using sevoflurane was safe and could easily maintain adequate SVRI.
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Affiliation(s)
- T. Ueda
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - K. Mizuguchi
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - T. Tsuji
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - N. Tabayashi
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - T. Abe
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - H. Naito
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - Y. Takewa
- Department of Surgery III, Nara Medical University, Nara - Japan
| | - S. Taniguchi
- Department of Surgery III, Nara Medical University, Nara - Japan
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Inoue K, Ueno T, Douchi D, Shima K, Goto S, Takahashi M, Morikawa T, Naitoh T, Shibata C, Naito H. Risk factors for difficulty of laparoscopic cholecystectomy in grade II acute cholecystitis according to the Tokyo guidelines 2013. BMC Surg 2017; 17:114. [PMID: 29183352 PMCID: PMC5706415 DOI: 10.1186/s12893-017-0319-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 11/20/2017] [Indexed: 01/11/2023] Open
Abstract
Background The Tokyo Guidelines 2013 classifies acute cholecystitis (AC) into three grades and recommends appropriate therapy for each grade. For grade II AC, either early laparoscopic cholecystectomy (LC) or percutaneous transhepatic gallbladder drainage (PTGBD) should be performed. This study aimed to identify the risk factors for difficulty of LC for treating grade II AC. Methods Totally, 122 patients who underwent LC for grade II AC were enrolled and divided into difficult LC (DLC) and nondifficult LC (NDLC) groups. The DLC group included patients who experienced one of the following conditions: conversion from LC to open cholecystectomy, operating time ≥ 180 min, or blood loss ≥300 ml. Preoperative characteristics and postoperative outcomes were analyzed. Results In univariate analysis, risk factors included male sex, interval between symptom onset and admission, interval between symptom onset and LC, and anticoagulant therapy. The incidence of postoperative complications was higher in the DLC group than in the NDLC group (23.5% vs. 4.6%, p = 0.0016). According to receiver operating characteristic curves, the optimal cutoff value was calculated, and multivariate analysis showed that male sex [odds ratio (OR), 5.76; 95% confidence interval (CI), 1.979–19.51; p = 0.0009) and interval between symptom onset and LC of over 96 h (OR, 6.32; 95% CI, 2.126–20.15; p = 0.0009) were independent risk factors for difficulty of LC. Conclusions In patients with grade II AC, LC was technically difficult when performed over 96 h after symptom onset. Moreover, male sex was a risk factor. Therefore, PTGBD should be considered in these patients. Electronic supplementary material The online version of this article (10.1186/s12893-017-0319-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Koetsu Inoue
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan.
| | - Tatsuya Ueno
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Daisuke Douchi
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Kentaro Shima
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Shinji Goto
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Michinaga Takahashi
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Takanori Morikawa
- Department of surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Takeshi Naitoh
- Department of surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryo-machi, Aoba-ku, Sendai, 980-8574, Japan
| | - Chikashi Shibata
- Division of Gastroenterological Surgery, Department of Surgery, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Hukumuro Miyagino-ku, Sendai, Miyagi, 983-8512, Japan
| | - Hiroo Naito
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
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Kanzaki R, Naito H, Eino D, Kawamura T, Ose N, Funaki S, Shintani Y, Minami M, Okumura M, Takakura N. P3.16-050 Stromal PDGFR-β Expression Influences Postoperative Survival of NSCLC Patients Receiving Preoperative Chemo- or Chemo-Radiotherapy. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1857] [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: 11/28/2022]
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Saito A, Natsume T, Inoue T, Sasai K, Naito H. Effects of Electrical Muscle Stimulation Against Acute Adverse Effect and Cancer Cachexia During Non–small Cell Lung Cancer Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1779] [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]
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Takahashi M, Goto S, Ueno T, Shima K, Inoue K, Douchi D, Nishina O, Naito H. Extreme dilatation of the interposed jejunal pouch after proximal gastrectomy associated with portal venous gas: A case report. Int J Surg Case Rep 2017; 37:244-247. [PMID: 28715720 PMCID: PMC5514623 DOI: 10.1016/j.ijscr.2017.06.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 12/31/2022] Open
Abstract
Dilatation of the interposed jejunal pouch developed after proximal gastrectomy. Shock state with portal venous gas was restored after conservative therapy. The pouch dilatation recurred soon after resuming oral ingestion. Resection of the pouch with R-Y esophagojejunostomy relieved the patient. Surgical intervention should be considered for refractory pouch dilatation.
Introduction The jejunal pouch interposition (JPI) after proximal gastrectomy (PG) was proposed as a reconstructive procedure to provide a gastric reservoir substitute and prevent postgastrectomy syndrome. However, food residue remaining in some of the pouches resulted in the adverse effect of abdominal bloating, thereby body weight loss. Here, we report a rare case with an extreme dilation of the interposed jejunal pouch (JP) 8 years after PG, requiring pouch resection. Presentation of case A 65-year-old-man who had undergone PG with an inverted U-shaped JPI for early gastric cancer 8 years previously, suffered from shock after right hip joint implantation. Abdominal enhanced CT scan revealed an extremely dilated JP accompanied by portal venous gas. After 5 months of conservative therapy, he underwent resection of the JP and gastric remnant with Roux-en-Y esophagojejunostomy reconstruction. After the operation, the patient has remained in good health for over 3 years. Discussion and conclusion Long-term operative outcome following pouch operation for gastric cancer still remains controversial. Surgical intervention should be considered when we encounter patients who have refractory pouch dilatation after surgery for gastric cancer.
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Affiliation(s)
- Michinaga Takahashi
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Shinji Goto
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Tatsuya Ueno
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Kentaro Shima
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Koetsu Inoue
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Daisuke Douchi
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Orie Nishina
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
| | - Hiroo Naito
- Department of Surgery, South Miyagi Medical Center, 38-1 Aza Nishi, Ogawara, Shibata-gun, Miyagi, 989-1253 Japan.
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Inoue K, Ueno T, Nishina O, Douchi D, Shima K, Goto S, Takahashi M, Shibata C, Naito H. Optimal timing of cholecystectomy after percutaneous gallbladder drainage for severe cholecystitis. BMC Gastroenterol 2017; 17:71. [PMID: 28569137 PMCID: PMC5452332 DOI: 10.1186/s12876-017-0631-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 05/24/2017] [Indexed: 12/07/2022] Open
Abstract
Background The Tokyo guideline for acute cholecystitis recommended percutaneous transhepatic gallbladder drainage followed by cholecystectomy for severe acute cholecystitis, but the optimal timing for the subsequent cholecystectomy remains controversial. Methods Sixty-seven patients who underwent either laparoscopic or open cholecystectomy after percutaneous transhepatic gallbladder drainage for severe acute cholecystitis were enrolled and divided into difficult cholecystectomy (group A) and non-difficult cholecystectomy (group B). Patients who had one of these conditions were placed in group A: 1) conversion from laparoscopic to open cholecystectomy; 2) subtotal cholecystectomy and/or mucoclasis; 3) necrotizing cholecystitis or pericholecystic abscess formation; 4) tight adhesions around the gallbladder neck; and 5) unsuccessfully treated using PTGBD. Preoperative characteristics and postoperative outcomes were analyzed. Results The interval between percutaneous transhepatic gallbladder drainage and cholecystectomy in Group B was longer than that in Group A (631 h vs. 325 h; p = 0.031). Postoperative complications occurred more frequently when the interval was less than 216 h compared to when it was more than 216 h (35.7 vs. 7.6%; p = 0.006). Conclusions Cholecystectomy for severe acute cholecystitis was technically difficult when performed within 216 h after percutaneous transhepatic gallbladder drainage. Electronic supplementary material The online version of this article (doi:10.1186/s12876-017-0631-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Koetsu Inoue
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan.
| | - Tatsuya Ueno
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Orie Nishina
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Daisuke Douchi
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Kentaro Shima
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Shinji Goto
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Michinaga Takahashi
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
| | - Chikashi Shibata
- Division of Gastroenterological Surgery, Department of Surgery, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Hukumuro, Miyagino-ku, Sendai, Miyagi, Japan
| | - Hiroo Naito
- Department of surgery, South Miyagi Medical Center, 38-1 Aza-nishi, Ogawara, Shibata-gun, Miyagi, 989-1253, Japan
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Yoshihara T, Kobayashi H, Kakigi R, Sugiura T, Naito H. Heat stress-induced phosphorylation of FoxO3a signalling in rat skeletal muscle. Acta Physiol (Oxf) 2016; 218:178-187. [PMID: 27306326 DOI: 10.1111/apha.12735] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 04/03/2016] [Accepted: 06/09/2016] [Indexed: 01/10/2023]
Abstract
AIM A recent study demonstrated that FoxO3a was directly induced by the overexpression of Hsp72 in rat soleus muscle. However, whether heat stress treatment induces FoxO3a phosphorylation in rat skeletal muscle remains unclear. This study examined the effects of heat stress on the regulation of the FoxO3a signalling pathway in rat skeletal muscle. METHODS Thirty-two male Wistar rats (15 weeks old) were randomly assigned into two groups; sedentary control group (Sed, n = 8) and experimental group (n = 24). After an overnight fast, one leg of each rat (HS leg) in the experimental group was immersed in hot water (43 °C) for 30 min, and the soleus and plantaris muscles in both legs were removed immediately (0 min), 30 min, 60 min, or 24 h after the heat stress (n = 6 each group). The contralateral, non-heated leg in the experimental group served as an internal control (CT leg). RESULTS Heat stress treatment resulted in a significant increase in FoxO3a phosphorylation (Ser253) in the soleus and plantaris muscles of heat-stressed legs after 24 h. Hsp72 expression in heat-stressed legs was significantly higher at 60 min and 24 h in these muscles. Activation of the PTEN/Akt and MEK/ERK pathways was also observed in these muscles immediately after stress, but not at 24 h. There were no differences in FoxO1 and AMPKα phosphorylation in either muscle. CONCLUSION Heat stress in rat skeletal muscle induces phosphorylation of FoxO3a signalling, and it may be related to Hsp72 upregulation, and the activation of the PTEN/Akt and MEK/ERK pathways.
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Affiliation(s)
- T. Yoshihara
- Graduate School of Health and Sports Science; Juntendo University; Inzai Chiba Japan
| | - H. Kobayashi
- Graduate School of Health and Sports Science; Juntendo University; Inzai Chiba Japan
- Mito Medical Center; Tsukuba University Hospital; Mito Ibaraki Japan
| | - R. Kakigi
- Faculty of Medicine; Juntendo University; Bunkyo-ku Tokyo Japan
| | - T. Sugiura
- Faculty of Education; Yamaguchi University; Yamaguchi Yamaguchi Japan
| | - H. Naito
- Graduate School of Health and Sports Science; Juntendo University; Inzai Chiba Japan
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Mizutani T, Yamashita M, Okubo N, Tanaka M, Naito H. Efficacy of Whole Bowel Irrigation Using Solutions with or without Adsorbent in the Removal of Paraquat in Dogs. Hum Exp Toxicol 2016; 11:495-504. [PMID: 1361139 DOI: 10.1177/096032719201100610] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 11/17/2022]
Abstract
1 The efficacy of whole bowel irrigation with a solution containing either polyethylene glycol (PEG) with electrolyte or an adsorbent (Kayexalate™) with a cathartic (sorbitol) was investigated in 18 dogs who had been given 250 mg kg -1 paraquat dichloride via a jejunal tube to eliminate the influence of gastric absorption. 2 Plasma paraquat concentrations 2 and 3 h after the initiation of bowel irrigation and at the end of the study (5 h later) were significantly lower in the bowel irrigation groups than in the control (no bowel irrigation) group. 3 The total body clearances of paraquat in the bowel irrigation groups were significantly greater than in the control group. 4 There were no significant differences between the two different irrigation solution groups in plasma paraquat concentration, the area under the plasma concentration time curve and the total body clearance. 5 In the PEG with electrolyte group, about 70% of the administered dose of paraquat was removed by means of bowel irrigation (n=4). 6 The adjunction of the adsorbent had no beneficial effects. 7 Haemodynamic changes associated with whole bowel irrigation were unremarkable except that right atrial and pulmonary arterial pressures were elevated in the latter part of the study.
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Affiliation(s)
- T Mizutani
- Department of Critical Care Medicine, University of Tsukuba, Ibaraki, Japan
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14
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Fukuda T, Tanaka H, Morita Y, Itonaga T, Seike Y, Minatoya K, Naito H. Endovascular aneurysm sealing using NBCA to control type Ia endoleak for the treatment of abdominal aortic aneurysm with challenging neck. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.531] [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: 10/22/2022] Open
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15
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Suzuki K, Naito H, Sakamoto A, Hui S. Sports club activity does not reduce sedentary behaviours of Japanese female adolescents. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.464] [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: 10/22/2022]
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16
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Ozaki H, Kitada T, Abe T, Machida S, Naito H, Katamoto S. Cycling inhibits age-related decreases in muscle thickness of the lower extremities and maximum oxygen uptake. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.388] [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: 10/22/2022]
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17
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Sakamoto A, Naito H, Chow C. Hyperventilation-induced respiratory alkalosis increases the number of repetitions to be able to perform during resistance training. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.387] [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: 10/22/2022]
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18
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Sakamoto A, Naito H, Chow C. Effects of short vs. long hyperventilation on repeated sprint performance and muscle activation. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.328] [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: 10/24/2022]
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19
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Nagahara R, Naito H, Miyashiro K, Morin JB, Zushi K. Traditional and ankle-specific vertical jumps as strength-power indicators for maximal sprint acceleration. J Sports Med Phys Fitness 2014; 54:691-699. [PMID: 24739258] [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: 06/03/2023]
Abstract
AIM This study aimed to determine the demand of strength-power capabilities represented by traditional and ankle-specific vertical jump modalities ‑ squat jump (SJ), counter-movement jump (CMJ), rebound-continuous jump (RJ), rebound-continuous ankle jump (AJ) ‑ relative to sprint acceleration ability during the entire acceleration phase of maximal sprint. METHODS Nineteen male sprinters performed a 60-m maximal sprint and various vertical jumps. Correlation coefficients among the vertical jump performances and between those and the 60-m sprint time and sprint acceleration at each step were calculated. RESULTS There were significant relationships between the 60-m sprint time and SJ height, CMJ height, AJ height, and AJ index. AJ height and index had no correlation with any other jump variables. Acceleration was significantly correlated with SJ height from the 6th to the 10th steps (r=0.48-0.51) and with CMJ height from the 5th to the 11th steps (r=0.46-0.54). Acceleration was also correlated with the AJ index from the 14th to the 19th steps (r=0.48-0.54). Acceleration had no correlation with the RJ index at any step. CONCLUSION The results suggest that the AJ allows assessment of different reactive strengths compared with traditional jump modalities. To accelerate effectively, the explosive strengths of the SJ and CMJ are important during the early stage of acceleration (from 6.6±0.4 to 17.5±0.8 m), and the reactive strength represented by the AJ is necessary during the later stage of acceleration (from 23.4±1.0 to 33.7±1.4 m). Sprinters and coaches should be aware of the different demands of strength-power capability for effective acceleration.
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Affiliation(s)
- R Nagahara
- Faculty of Health and Sport Sciences University of Tsukuba, Tsukuba, Japan -
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20
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Tahara H, Naito H, Kise K, Wakabayashi T, Kamoi K, Okihara K, Yanagisawa A, Nakai Y, Nonomura N, Morii E, Miki T, Takakura N. Evaluation of PSF1 as a prognostic biomarker for prostate cancer. Prostate Cancer Prostatic Dis 2014; 18:56-62. [DOI: 10.1038/pcan.2014.46] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 09/18/2014] [Accepted: 10/02/2014] [Indexed: 11/09/2022]
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21
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Ozaki H, Kakigi R, Kobayashi H, Loenneke JP, Abe T, Naito H. Effects of walking combined with restricted leg blood flow on mTOR and MAPK signalling in young men. Acta Physiol (Oxf) 2014; 211:97-106. [PMID: 24479982 DOI: 10.1111/apha.12243] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/25/2013] [Accepted: 01/24/2014] [Indexed: 11/26/2022]
Abstract
UNLABELLED Walking combined with blood flow reduction (BFR-walk) elicits muscle hypertrophy. However, the skeletal muscle intracellular signalling behind this response is currently unknown. AIM To investigate the effects of BFR-walk on mechanistic target of rapamycin (mTOR) and mitogen-activated protein kinase (MAPK) signalling pathways in young men. METHODS Six young men performed 20 min of treadmill walking at 55% of their predetermined maximum oxygen uptake. A pressure cuff belt was applied to the most proximal thigh of only one leg (BFR-Leg, external compression was 240 mmHg), whereas the other leg (CON-Leg) was without BFR during walking. Muscle biopsies were taken from the vastus lateralis of the CON-Leg before exercise and in both legs 3 h after exercise. RESULTS Erk1/2 phosphorylation levels were significantly (P < 0.05) increased after exercise in both legs; however, only the BFR-Leg saw an increased phosphorylation of p38. For mTOR signalling, there were no changes in Akt, mTOR or S6K1 phosphorylation levels before or after walking. However, eEF2 phosphorylation level was significantly (P < 0.05) lower for the BFR-Leg 3 h after walking compared with CON-Leg. CONCLUSION BFR-walk exercise may activate some intracellular signalling cascades that are associated with muscle hypertrophy in young men.
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Affiliation(s)
- H. Ozaki
- Graduate School of Medicine; Juntendo University; Tokyo Japan
- Japan Society for the Promotion of Science; Tokyo Japan
- Graduate School of Health and Sport Science; Juntendo University; Inzai Japan
| | - R. Kakigi
- School of Medicine; Juntendo University; Tokyo Japan
| | - H. Kobayashi
- Graduate School of Health and Sport Science; Juntendo University; Inzai Japan
- Mito Medical Center; Tsukuba University Hospital; Mito Japan
| | - J. P. Loenneke
- Department of Health and Exercise Science; University of Oklahoma; Norman OK USA
| | - T. Abe
- Department of Kinesiology; Indiana University; Bloomington IN USA
| | - H. Naito
- Graduate School of Health and Sport Science; Juntendo University; Inzai Japan
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22
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Yildirim Y, Pecha S, Naito H, Karikkineth B, Zimmermann W, Reichenspurner H, Eschenhagen T. Development of Recipient-Matched Engineered Heart Tissue Using 3D Printing. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.873] [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: 10/25/2022] Open
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23
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Abstract
This study clarified the association between acceleration and the rates of changes in spatiotemporal variables on a step-to-step basis during the entire acceleration phase of maximal sprinting. 21 male sprinters performed a 60-m sprint, during which step-to-step acceleration and rates of changes in step length (RSL) and step frequency (RSF) were calculated. The coefficients of correlation between acceleration and other variables were tested at each step. There were positive correlations between acceleration and the RSF up to the second step. Acceleration was positively correlated with the RSL from the 5(th) to the 19(th) step. At the third and from the 16(th) to the 22(nd) step and from the 20(th) to the 21(st) step, there was no significant correlation, but weak relationships were found between acceleration and the RSF and RSL. The results suggest that the acceleration phase can be divided into 3 sections, and for sprinting to be effective, it is important to accelerate by increasing the step frequency to the third step, increasing the step length from the 5(th) to the 15(th) step, and increasing the step length or frequency (no systematic relative importance of step length or frequency) from the 16(th) step in the entire acceleration phase.
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Affiliation(s)
- R Nagahara
- Faculty of Health and Sport Sciences, University of Tsukuba, Japan
| | - H Naito
- Faculty of Health and Sport Sciences, University of Tsukuba, Japan
| | - J-B Morin
- Laboratory of Exercise Physiology, University of Lyon, Saint-Etienne, France
| | - K Zushi
- Faculty of Health and Sport Sciences, University of Tsukuba, Japan
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24
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Nakaya Y, Shide K, Naito H, Niwa T, Horio T, Miyake J, Shimoda K. Effect of NS-018, a selective JAK2V617F inhibitor, in a murine model of myelofibrosis. Blood Cancer J 2014; 4:e174. [PMID: 24413068 PMCID: PMC3913942 DOI: 10.1038/bcj.2013.73] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 11/14/2013] [Accepted: 12/05/2013] [Indexed: 12/21/2022] Open
Abstract
A single somatic mutation, V617F, in Janus kinase 2 (JAK2) is one of the causes of myeloproliferative neoplasms (MPNs), including primary myelofibrosis, and the JAK2V617F mutant kinase is a therapeutic target in MPN. However, inhibition of wild-type (WT) JAK2 can decrease the erythrocyte or platelet (PLT) count. Our selective JAK2 inhibitor, NS-018, suppressed the growth of Ba/F3 cells harboring JAK2V617F more strongly than that of cells harboring WT JAK2. The 4.3-fold JAK2V617F selectivity of NS-018 is higher than the 1.0- to 2.9-fold selectivity of seven existing JAK2 inhibitors. NS-018 also inhibited erythroid colony formation in JAK2V617F transgenic mice at significantly lower concentrations than in WT mice. In keeping with the above results, in a JAK2V617F bone marrow transplantation mouse model with a myelofibrosis-like disease, NS-018 reduced leukocytosis and splenomegaly, improved bone marrow fibrosis and prolonged survival without decreasing the erythrocyte or PLT count in the peripheral blood. By exploring the X-ray co-crystal structure of NS-018 bound to JAK2, we identified unique hydrogen-bonding interactions between NS-018 and Gly993 as a plausible explanation for its JAK2V617F selectivity. These results suggest that NS-018 will have therapeutic benefit for MPN patients through both its efficacy and its reduced hematologic adverse effects.
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Affiliation(s)
- Y Nakaya
- 1] Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, Japan [2] Discovery Research Laboratories, Nippon Shinyaku Co. Ltd, Kyoto, Japan
| | - K Shide
- Department of Gastroenterology and Hematology, Faculty of Medicine, Miyazaki University, Miyazaki, Japan
| | - H Naito
- Discovery Research Laboratories, Nippon Shinyaku Co. Ltd, Kyoto, Japan
| | - T Niwa
- Discovery Research Laboratories, Nippon Shinyaku Co. Ltd, Kyoto, Japan
| | - T Horio
- Discovery Research Laboratories, Nippon Shinyaku Co. Ltd, Kyoto, Japan
| | - J Miyake
- Department of Mechanical Science and Bioengineering, Graduate School of Engineering Science, Osaka University, Osaka, Japan
| | - K Shimoda
- Department of Gastroenterology and Hematology, Faculty of Medicine, Miyazaki University, Miyazaki, Japan
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25
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Ariake K, Ueno T, Takahashi M, Goto S, Sato S, Akada M, Naito H. E-PASS comprehensive risk score is a good predictor of postsurgical mortality from comorbid disease in elderly gastric cancer patients. J Surg Oncol 2013; 109:586-92. [DOI: 10.1002/jso.23542] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 12/03/2013] [Indexed: 12/17/2022]
Affiliation(s)
- Kyohei Ariake
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
| | - Tatsuya Ueno
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
| | | | - Shinji Goto
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
| | - Shun Sato
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
| | - Masanori Akada
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
| | - Hiroo Naito
- Department of Surgery; South Miyagi Medical Center; Oogawara Japan
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26
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Sakamoto A, Naito H, Chow C. Hyperventilation as a strategy for improved repeated sprint performance. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.106] [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: 10/25/2022]
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27
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Ichinoseki-Sekine N, Kakigi R, Nakagata T, Miura S, Naito H. Whey peptide HW3 supplementation suppress body fat accumulation by maintained basal metabolism. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.085] [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: 10/25/2022]
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28
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Ariake K, Miura M, Takahashi M, Ueno T, Sato S, Akada M, Maeda S, Fujisaka Y, Ohto T, Naito H. [A case of liver cirrhosis due to non-alcoholic steatohepatitis complicated by myotonic dystrophy]. Nihon Shokakibyo Gakkai Zasshi 2013; 110:1633-1639. [PMID: 24005104] [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] [Indexed: 06/02/2023]
Abstract
A female in her 50s with a four-year history of myotonic dystrophy was admitted to our hospital with hematochezia. She was diagnosed with synchronous colonic cancer of the transverse and sigmoid colon, for which she underwent partial transverse and sigmoid colectomy, respectively. Postoperative respiratory failure resulted in prolonged stay in the intensive care unit. Her liver and renal function gradually deteriorated, and she eventually died from these sequelae on postoperative day 26. Intraoperative liver biopsy revealed cirrhosis arising from non-alcoholic steatohepatitis (NASH). Although myotonic dystrophy is believed to be a multisystem disease, its association with cirrhosis has not been reported in Japan. We therefore report this rare case of liver cirrhosis arising from NASH in a patient with myotonic dystrophy.
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Arakawa T, Noguchi T, Fujiwara R, Miyamoto Y, Higashi M, Goto Y, Ishihara M, Yasuda S, Ogawa H, Naito H. An innovative multi-detector computed tomography image-processing method for quantitative coronary artery analysis: the NCVC system. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p2931] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Fukuda T, Matsuda H, Doi S, Sugiyama M, Morita Y, Yamada M, Yokoyama H, Minatoya K, Kobayashi J, Naito H. Evaluation of Automated 2D-3D Image Overlay System Utilizing Subtraction of Bone Marrow Image for EVAR: Feasibility Study. Eur J Vasc Endovasc Surg 2013; 46:75-81. [DOI: 10.1016/j.ejvs.2013.04.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 04/04/2013] [Indexed: 11/25/2022]
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31
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Yoshihara T, Naito H, Kakigi R, Ichinoseki-Sekine N, Ogura Y, Sugiura T, Katamoto S. Heat stress activates the Akt/mTOR signalling pathway in rat skeletal muscle. Acta Physiol (Oxf) 2013; 207:416-26. [PMID: 23167446 DOI: 10.1111/apha.12040] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 10/30/2012] [Accepted: 11/12/2012] [Indexed: 12/31/2022]
Abstract
AIM It is well known that various stimuli, such as mechanical stress and nutrients, induce muscle hypertrophy thorough the Akt/mTOR signalling pathway, which is a key mediator of protein synthesis and hypertrophy in skeletal muscle. It was recently reported that heat stress also induces an increase in muscle weight and muscle protein content. In addition, heat stress enhances Akt/mTOR signalling after one bout of resistance exercise. However, it remains unclear whether increased temperature itself stimulates the Akt/mTOR signalling pathway. METHODS Forty-two male Wistar rats (279.5 ± 1.2 g) were divided into a control group (CON) or one of five thermal stress groups at 37, 38, 39, 40 or 41 °C (n = 7 each group). After overnight fasting, both legs were immersed in different temperatures of hot water for 30 min under sodium pentobarbital anaesthesia. The soleus and plantaris muscles were immediately removed from both legs after the thermal stress. RESULTS The phosphorylation of mTOR or 4E-BP1 and heat shock protein (HSP) expression levels were similar among groups in both the soleus and plantaris muscles. However, Akt and p70S6K phosphorylation significantly increased at 41 °C in the soleus and plantaris muscles. Moreover, we observed a temperature-dependent increase in Akt and p70S6K phosphorylation in both muscles. CONCLUSION Our data indicate that the altered temperature increased phosphorylation in a temperature-dependent manner in rat skeletal muscle and may itself be a key stimulator of Akt/mTOR signalling.
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Affiliation(s)
| | - H. Naito
- Graduate School of Health and Sports Science; Juntendo University; Inzai; Chiba; Japan
| | - R. Kakigi
- Institute of Health and Sports Science & Medicine; Juntendo University; Inzai; Chiba; Japan
| | - N. Ichinoseki-Sekine
- Institute of Health and Sports Science & Medicine; Juntendo University; Inzai; Chiba; Japan
| | - Y. Ogura
- Department of Physiology; St. Marianna University School of Medicine; Kawasaki; Kanagawa; Japan
| | - T. Sugiura
- Department of Exercise and Health Sciences; Faculty of Education; Yamaguchi University; Yamaguchi; Yamaguchi; Japan
| | - S. Katamoto
- Graduate School of Health and Sports Science; Juntendo University; Inzai; Chiba; Japan
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32
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Naito H, Takeda Y, Danura T, Kass IS, Morita K. Effect of lidocaine on dynamic changes in cortical reduced nicotinamide adenine dinucleotide fluorescence during transient focal cerebral ischemia in rats. Neuroscience 2013; 235:59-69. [PMID: 23321540 DOI: 10.1016/j.neuroscience.2013.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 12/27/2012] [Accepted: 01/08/2013] [Indexed: 01/24/2023]
Abstract
Rats were subjected to 90min of focal ischemia by occluding the left middle cerebral and both common carotid arteries. The dynamic changes in the formation of brain ischemic areas were analyzed by measuring the direct current (DC) potential and reduced nicotinamide adenine dinucleotide (NADH) fluorescence with ultraviolet irradiation. In the lidocaine group (n=10), 30min before ischemia, an intravenous bolus (1.5mg/kg) of lidocaine was administered, followed by a continuous infusion (2mg/kg/h) for 150min. In the control group (n=10), an equivalent amount of saline was administered. Following the initiation of ischemia, an area of high-intensity NADH fluorescence rapidly developed in the middle cerebral artery territory in both groups and the DC potential in this area showed ischemic depolarization. An increase in NADH fluorescence closely correlated with the DC depolarization. The blood flow in the marginal zone of both groups showed a similar decrease. Five minutes after the onset of ischemia, the area of high-intensity NADH fluorescence was significantly smaller in the lidocaine group (67% of the control; P=0.01). This was likely due to the suppression of ischemic depolarization by blockage of voltage-dependent sodium channels with lidocaine. Although lidocaine administration did not attenuate the number of peri-infarct depolarizations during ischemia, the high-intensity area and infarct volume were significantly smaller in the lidocaine group both at the end of ischemia (78% of the control; P=0.046) and 24h later (P=0.02). A logistic regression analysis demonstrated a relationship between the duration of ischemic depolarization and histologic damage and revealed that lidocaine administration did not attenuate neuronal damage when the duration of depolarization was identical. These findings indicate that the mechanism by which lidocaine decreases infarct volume is primarily through a reduction of the brain area undergoing NADH fluorescence increases which closely correlates with depolarization.
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Affiliation(s)
- H Naito
- Department of Anesthesiology, Okayama University Medical School, Japan
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33
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Onuma M, Miura M, Fujisaka Y, Zuguchi M, Asonuma S, Umemura T, Iioka Y, Outou T, Takahashi M, Naito H. [A case of huge papillary adenocarcinoma of the gallbladder with marked necrosis]. Nihon Shokakibyo Gakkai Zasshi 2013; 110:95-103. [PMID: 23303235] [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] [Indexed: 06/01/2023]
Abstract
A 71-year-old woman was admitted to our hospital for evaluation of a right upper abdominal tumor. A contrast-CT scan demonstrated a huge tumor extending from the hepatic hilum to the pelvic space. The rim of tumor was enhanced. The center of the tumor was not enhanced and thus considered to consist of mucus or necrotic tissues. Preoperative diagnosis as gallbladder carcinoma without infiltrating to peripheral organ was made and subsequent cholecystectomy with full-thickness dissection has been performed. The tumor itself was in a swollen gallbladder, 18 cm in diameter, consisting of necrotic tissues in the lumen. Pathologic diagnosis was papillary adenocarcinoma, classified as pHinf1a, revealing fStage II. In many cases with undifferentiated carcinoma of the gallbladder, the neoplasms grow expansively to become large tumors with marked necrosis. We report a rare case of papillary adenocarcinoma of the gallbladder presenting both a clinical course and radiologic findings indistinguishable from undifferentiated carcinoma of the gallbladder.
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Affiliation(s)
- Masaru Onuma
- Department of Gastroenterology, Miyagi Kennan Chukaku Hospital
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Fukao K, Shimada K, Naito H, Katamoto S, Kawai S, Daida H. An association between exercise item and cardiac biomarkers in the endurance athletes. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.351] [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: 11/27/2022]
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35
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Sakamoto A, Naito H. Effects of hyperventilation on repeated isokinetic torque production and EMG of lower limbs. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.155] [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: 11/24/2022]
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36
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Konishi N, Hiasa Y, Tsuzuki T, Matsuda H, Tao M, Nakamura M, Naito H, Kitahori Y, Shiraishi T, Yatani R, Shimazaki J, Lin J. Detection of RB, p16/CDKN2 and p15(INK4B) gene alterations with immunohistochemical studies in human prostate carcinomas. Int J Oncol 2012; 8:107-12. [PMID: 21544337 DOI: 10.3892/ijo.8.1.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
To examine the status of cell cycle-inhibitory genes in human prostate carcinoma, we investigated alterations of RE (retinoblastoma), p16/CDKN2 and p15(INK4B) genes in 32 adenocarcinomas with immunohistochemistry. PCR-single-strand conformation polymorphism (SSCP) was used to examine all 27 exons of the RE gene, exons 1 to 3 of the p16/CDKN2 gene and exons 1 and 2 of the p15(INK4B) gene for mutations. Loss of heterozygosity (LOH) for the RE gene was probed by restriction fragment length polymorphism (RFLP) analysis. In addition, coordinate samples were subjected to immunohistochemical studies for reactivity to RE and p16 protein. The RE gene alterations were detected in 5 of the 32 tumors (16%); of these, only one mutation, a missense substitution, occurred within an exon. The remaining four single base insertions or deletions were found within introns of the RE gene and no mutational event was detected in its promoter region. LOH involving intron 17 of RB was detected in three cases of 10 informative tumors (30%). Intragenic mutations were also present in 3 of the 32 tumors in the p16/CDKN2 gene. In contrast, no mutational events were found in the p15(INK4B) gene in the tumors. Only one tumor had both a p16/CDKN2 mutation and LOH of the RE gene. Expression of pRB was absent or reduced in 16 cancers, while p16 expression was present in all cases to varying degrees. The results suggest that p16/CDKN2 gene mutations occur rarely and intragenic mutation, but not LOH,of the RE gene is not required in prostatic tumorigenesis.
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Affiliation(s)
- N Konishi
- MIE UNIV,FAC MED,DEPT PATHOL,TSU,MIE 514,JAPAN. CHIBA UNIV,SCH MED,DEPT UROL,CHUO KU,CHIBA 260,JAPAN. CTR DIS CONTROL,DIV HIV AIDS,HEMATOL DIS BRANCH,ATLANTA,GA 30333
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Shibata C, Kakyo M, Kinouchi M, Tanaka N, Miura K, Naitoh T, Ogawa H, Motoi F, Egawa S, Ueno T, Naito H, Unno M. Criteria for the glucagon provocative test in the diagnosis of gastrinoma. Surg Today 2012; 43:1281-5. [DOI: 10.1007/s00595-012-0334-2] [Citation(s) in RCA: 14] [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] [Received: 01/24/2011] [Accepted: 08/23/2012] [Indexed: 11/29/2022]
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Kurosaka M, Naito H, Ogura Y, Machida S, Katamoto S. Satellite cell pool enhancement in rat plantaris muscle by endurance training depends on intensity rather than duration. Acta Physiol (Oxf) 2012; 205:159-66. [PMID: 22040028 DOI: 10.1111/j.1748-1716.2011.02381.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [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: 01/26/2023]
Abstract
AIM Increases in the number of satellite cells are necessary for the maintenance of normal muscle function. Endurance training enhances the satellite cell pool. However, it remains unclear whether exercise intensity or exercise duration is more important to enhance the satellite cell pool. This study examined the effects of different intensity and duration of endurance training on the satellite cell pool in rat skeletal muscle. METHODS Forty-one 17-week-old female Sprague-Dawley rats were assigned to control (n = 8), high intensity and high duration (n = 7), high intensity and low duration (n = 8), low intensity and high duration (n = 9) and low intensity and low duration (n = 9) groups. Training groups exercised 5 days per week on a motor driven treadmill for 10 weeks. After the training period, animals were anaesthetized and the plantaris muscles were removed, weighed and analysed for immunohistochemical and histochemical properties. RESULTS Although no significant differences were found in muscle mass, mean fibre area and myonuclei per muscle fibre between all groups, the percentage of satellite cells was significantly higher in the high-intensity groups than in the other groups (P < 0.05). CONCLUSION Increases in the satellite cell pool of skeletal muscle following endurance training depend on the intensity rather than duration of exercise.
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Affiliation(s)
- M Kurosaka
- Department of Exercise Physiology, School of Physical Education, Tokai University, Hiratsuka, Kanagawa, Japan
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Kimoto-Nira H, Aoki R, Mizumachi K, Sasaki K, Naito H, Sawada T, Suzuki C. Interaction between Lactococcus lactis and Lactococcus raffinolactis during growth in milk: Development of a new starter culture. J Dairy Sci 2012; 95:2176-85. [DOI: 10.3168/jds.2011-4824] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 11/28/2011] [Indexed: 11/19/2022]
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Kidoya H, Kunii N, Naito H, Muramatsu F, Okamoto Y, Nakayama T, Takakura N. The apelin/APJ system induces maturation of the tumor vasculature and improves the efficiency of immune therapy. Oncogene 2011; 31:3254-64. [PMID: 22037214 DOI: 10.1038/onc.2011.489] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Immature and unstable tumor vasculature provides an aberrant tumor microenvironment and leads to resistance of tumors to conventional therapy. Hence, normalization of tumor vessels has been reported to improve the effect of immuno-, chemo- and radiation therapy. However, the humoral factors, which can effectively induce maturation of tumor vasculature, have not been elucidated. In this study, we found that the novel peptide apelin and its receptor APJ can induce the morphological and functional maturation of blood vessels in tumors. This apelin-induced tumor vascular maturation enhances the efficacy of cancer dendritic cell-based immunotherapy and significantly suppresses tumor growth by promoting the infiltration of invariant natural killer T cells into the central region of the tumor and thereby robustly inducing apoptosis of tumor cells. Additionally, we showed APJ expression to be enhanced in the tumor endothelium in comparison with normal-state endothelial cells. These findings provide a new target for tumor vascular-specific maturation, which is expected to improve the efficacy of conventional cancer therapies.
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Affiliation(s)
- H Kidoya
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
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Ogura Y, Naito H, Kakigi R, Ichinoseki-Sekine N, Kurosaka M, Yoshihara T, Akema T. Effects of ageing and endurance exercise training on alpha-actinin isoforms in rat plantaris muscle. Acta Physiol (Oxf) 2011; 202:683-90. [PMID: 21518265 DOI: 10.1111/j.1748-1716.2011.02284.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM We recently reported that α-actinin adaptation occurs at the isoform level. This study was undertaken to clarify the effects of: (1) ageing-induced shift of myosin heavy chain (MyHC) composition and (2) endurance exercise training on α-actinin isoforms in rat plantaris muscle. METHODS Adult (18 mo) and old (28 mo) male Fischer 344 rats were assigned to either sedentary control or endurance exercise training groups. Animals in the training groups ran on a treadmill for 8 week with training intensity adjusted to be equal for adult and old groups. After the training was completed, the plantaris muscles were taken for analyses of α-actinin-2, α-actinin-3, and MyHC composition and metabolic enzyme activities. RESULTS The proportion of type IIb MyHC was lower, and that of type I MyHC was higher in old animals than in adult animals. α-actinin-3 was significantly lower in old animals than in adult animals. No significant difference was found in α-actinin-2 and citrate synthase (CS) activity between adult and old animals. Citrate synthase activity was higher in trained animals than in sedentary animals. Endurance training produced a fast-to-slow shift within type II MyHC isoforms in both adult and old animals. α-actinin-2 was significantly higher in trained animals than in sedentary animals. No significant difference was found in α-actinin-3 between trained and sedentary animals. CONCLUSION These results support the α-actinin adaptation at the isoform level and show that the α-actinin-3 expression depends on the amount of type II MyHC, whereas α-actinin-2 expression is associated with improvement of muscular aerobic capacity.
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Kang YS, Cha JJ, Hyun YY, Lee MH, Song HK, Cha DR, Bang K, Jeong J, Shin JH, Kang JH, Yang J, Ahn C, Kim JH, Toledo K, Merino A, GonzaLez-Burdiel L, Perez-Saez MJ, Aguera M, Ramirez R, Del Castillo D, Aljama P, Kahveci A, Tugtepe H, Asicioglu E, Nalcaci S, Birdal G, Arikan H, Koc M, Tuglular S, Kaya H, Ozener C, Kocak G, Azak A, Huddam B, Astarci HM, Can M, Duranay M, Tayama Y, Hasegawa H, Takayanagi K, Matsuda A, Shimizu T, Asakura J, Iwashita T, Okazaki S, Hatano M, Kiba T, Ogawa T, Mitarai T, Sanchez JE, Nunez M, Gonzalez I, Fernandez-Vina A, Pelaez B, Quintana A, Rodriguez C, Park KA, Kim EJ, Choi SJ, Kim NR, Park MY, Kim JK, Hwang SD, Cotovio P, Rocha A, Carvalho MJ, Teixeira L, Mendonca D, Rodrigues A, Cabrita A, Ito M, Wu HY, Peng YS, Huang JW, Hu FC, Hung KY, Tsai TJ, Wu KD, Temiz G, Sahin G, Degirmenci N, Ozkurt S, Yalcin AU, Rufino M, Garcia C, Vega N, Macia M, Rodriguez A, Maceira B, Hernandez D, Lorenzo V, Levallois J, Nadeau-Fredette AC, Labbe AC, Laverdiere M, Ouimet D, Vallee M, Matsuda A, Katou H, Tayama Y, Iwanaga M, Ogawa T, Shimizu T, Asakura J, Noiri C, Kanouzawa K, Hasegawa H, Mitarai T, Karakan S, Sezer S, Ozdemir Acar N, Haberal M, Ueda A, Nagai K, Morimoto M, Hirayama A, Yoh K, Saito C, Yamagata K, Parikova A, Vlijm A, deGraaff M, Brabcova I, Viklicky O, Krediet R, Nagamine N, Katoh KI, Yoshitake O, Cho KH, Jung SY, Do JY, Park JW, Yoon KW, Hwang SD, Kim NR, Kim EJ, Chung CH, Park MY, Choi SJ, Kim JK, Mravljak M, Karas B, Pajek J, Pintar T, Benedik M, Gucek A, Tomo T, Kadota JI, Tsuchida K, Minakuchi J, Yamanaka M, Numata A, Masakane I, Fujimori A, Kawanishi H, Naito H, Bordignon J, Manonelles A, Andujar A, Gonzalez-Segura C, Gonzalez MT, Glavas-Boras S, Zlopasa G, Boras S, Smalcelj R, Slavicek J, Knezevic N, Puretic Z, Prasad N, Gupta A, Sinha A, Saxena A, Sharma RK, Kaul A, Ramos R, Gonzalez MT, Vera M, Garcia I, Barbosa F, Teixido J, Garcia C, Cuxart M, Gonzalez C, de la Cruz JJ, Fukuoka K, Sinozaki M, Kato N, Oba I, Harada K, Kanai H, Ota K, Do JY, Kang SW, Cho KH, Park JW, Shin KL, Kim YH, Yoon KW, Prasad N, Gupta A, Sinha A, Sharma RK, Kaul A, Saxena A, Schneider K, Huszar T, Bator B, Di Napoli A, Franco F, Salvatori MF, Di Lallo D, Guasticchi G, Hassan S, Kristal B, Khazim K, Hassan F, Hassan K, Korabecna M, Krizkova V, Kocova J, Tonar Z, Opatrna S, Gaiao S, Beco A, Oliveira A, Santos-Araujo C, Pestana M, Denizot A, Milliard B, Kahveci A, Asicioglu E, Arikan H, Tuglular S, Ozener C, Hsu BG, Lai YH, Wang CH, Fang TC, Yesil H, Paydas S, Balal M, Cinkir U, Sertdemir Y, Santos-Araujo C, Oliveira A, Beco A, Sousa J, Silva N, Santos D, Pestana M, Oliveira A, Beco A, Santos C, Pestana M, Vera M, Fontsere N, Maduell F, Arias M, Bergada E, Cases A, Campistol JM, Grzelak T, Czyzewska K, Mortazavi M, Seirafian S, Halabian M, Emami Naini A, Farajzadegan Z, Moinzade F, Golabchi K, Portoles J, Moreno F, Lopez-Sanchez P, Gomez M, Corchete E, del Peso G, Bajo MA, Rivera M, Arribas G, Ferreira AC, Fernandes V, Sousa J, Vila Lobos A, Nolasco F, Martino F, di Loreto P, Rodighiero MP, Crepaldi C, Ronco C, Asicioglu E, Kahveci A, Nalcaci S, Arikan H, Tuglular S, Ozener C, Cavallini M, Centi A, Broccoli ML, Rocca AR, Testorio M, Borzacca B, Pugliese F, Russo GE, Tokgoz B, Ucar C, Kocyigit I, Somdas MA, Unal A, Vural A, Sipahioglu MH, Oymak O, Utas C, Teixeira L, Rodrigues A, Carvalho MJ, Cabrita A, Mendonca D, Micha T, Takouli L, Karaitianou A, Koupari G, Trompouki S, Arvanitis D, Vlassopoulos D, Ferreira AC, Fernandes V, Vila Lobos A, Nolasco F, Kahveci A, Nalcaci S, Asicioglu E, Birdal G, Arikan H, Tuglular S, Ozener C, Carvalho C, Beco A, Oliveira A, Santos C, Pestana M, Hiramatsu M, Ishida M, Tonozuka Y, Mikami H, Yamanari T, Momoki N, Onishi A, Maruyama K, Ito M, Masakane I, Takahashi T, Chung SH, Han DC, Noh H, Jeon JS, Kwon SH, Lindholm B, Lee HB, Tekeli L, Inal S, Derici U, Celik N, Kiran G, Derin O, Durunay M, Erten Y, Cho JH, Do JY, Park SH, Kim CD, Choi JY, Ryu HM, Kim YL, Kawahara K, Ishihara Y, Iwadou H, Uemura N, Kinashi M, Oobayashi S, Pilcevic D, Tadic-Pilcevic J, Kovacevic Z, Maksic D, Paunic Z, Mitrovic M, Mijuskovic M, Petrovic M. Peritoneal dialysis. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.54] [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: 11/13/2022] Open
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Schmid R, Naito H, Cerfolio R, Choong C. Conference discussion: Engineering bioartificial tracheal tissue using hybrid fibroblast-mesenchymal stem cell cultures in collagen hydrogels. Interact Cardiovasc Thorac Surg 2011; 12:161. [PMID: 21322163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
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Iguchi A, Kobayashi R, Sato TZ, Naito H, Shikano T, Ishikawa Y, Kobayashi K. High susceptibility to severe infectious complications at reinduction chemotherapy in patients who relapse after stem cell transplantation. Transplant Proc 2010; 42:1857-61. [PMID: 20620537 DOI: 10.1016/j.transproceed.2010.01.052] [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] [Received: 07/03/2008] [Accepted: 01/19/2010] [Indexed: 10/19/2022]
Abstract
Patients who relapse after stem cell transplantation (SCT) usually appear to be liable to severe infectious complications at reinduction chemotherapy compared to patients at the first induction therapy, though this is not statistically substantiated. The aim of this study was to analyze episodes of infectious complications during reinduction chemotherapy among patients who relapsed after SCT compared with those at the first induction chemotherapy. Between February 1988 and March 2004, 145 children received SCT, and 17 (12 with hematologic malignancies and 5 with solid tumors) were enrolled as eligible subjects for this study. Positive blood cultures (sepsis) were present in six patients exclusively at the reinduction therapy but none at the first induction (P = .009). Three of the six patients progressed to septic shock. Moreover, all patients positive for blood cultures were those with hematologic malignancy (P = .007), and every patient with septic shock had received allogenic transplantation. Our results showed that reinduction chemotherapy needs attention for severe infectious complications, particularly among patients with hematologic malignancies receiving allogenic transplantations. Possible immaturity of the reconstructed systemic immune system and/or insufficient recovery of mucosal protective functions in the patients after SCT are discussed in view of their high susceptibility to severe infectious complications.
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Affiliation(s)
- A Iguchi
- Department of Pediatrics, Hokkaido University Graduate School of Medicine, Hokkaido, Japan.
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Ramdhan D, Kamijima M, Wang D, Ito Y, Yanagiba Y, Hayashi Y, Naito H, Gonzalez F, Nakajima T. Differential response to trichloroethylene-induced hepatosteatosis in wild-type and PPARα-humanized mice. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.709] [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: 10/19/2022]
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46
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Hayashi Y, Ito Y, Yanagiba Y, Wang D, Yamagishi N, Tamada H, Naito H, Nakajima T. Di (2-ethylhexyl) phthalate may cause reproductive and developmental toxicity through PPARalpha. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.635] [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]
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47
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Kimura M, Tojo T, Naito H, Nagata Y, Kawai N, Taniguchi S. Effects of a simple intraoperative intrathoracic hyperthermotherapy for lung cancer with malignant pleural effusion or dissemination. Interact Cardiovasc Thorac Surg 2010; 10:568-71. [DOI: 10.1510/icvts.2009.225110] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Ogura Y, Naito H, Kakigi R, Akema T, Sugiura T, Katamoto S, Aoki J. Different adaptations of alpha-actinin isoforms to exercise training in rat skeletal muscles. Acta Physiol (Oxf) 2009; 196:341-9. [PMID: 19040707 DOI: 10.1111/j.1748-1716.2008.01945.x] [Citation(s) in RCA: 8] [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: 10/21/2022]
Abstract
AIM Alpha (alpha)-actinins are located in the skeletal muscle Z-line and form actin-actin cross-links. Mammalian skeletal muscle has two isoforms: alpha-actinin-2 and alpha-actinin-3. However, the response of alpha-actinin to exercise training is little understood. Therefore, the current study examined the effects of exercise training on the expression level of two alpha-actinin isoforms in skeletal muscles. METHODS Twelve male Wistar rats were assigned randomly to a control (C; n = 6) or exercise training (T; n = 6) group. After T animals were trained on an animal treadmill for 9 weeks, alpha-actinin-2 and alpha-actinin-3 levels in the plantaris, white and red gastrocnemius muscles were analysed. In addition, changes in the myosin heavy chain (MyHC) composition were assessed, and muscle bioenergetic enzyme activities were measured. RESULTS Results show that exercise training increased alpha-actinin-2 expression levels in all muscles (P < 0.05). However, no significant difference was found in alpha-actinin-3 expression levels between C and T animals. Subsequent MyHC analyses of all muscle showed an MyHC shift with direction from IIb to IIa. Furthermore, enzymatic analysis revealed that exercise training improved enzyme activities related to aerobic metabolism. CONCLUSION The results of this study demonstrate that exercise training alters the expression level of alpha-actinin at the isoform level. Moreover, the increase in expression levels of alpha-actinin-2 is apparently related to alteration of skeletal muscle: its aerobic capacity is improved.
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Affiliation(s)
- Y Ogura
- Department of Physiology, St Marianna University School of Medicine, Kanagawa, Japan
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Murata S, Naito H, Yamamoto H, Mekata E, Shimizu T, Shiomi H, Naka S, Abe H, Kurumi Y, Tani T. Phase II trial of adjuvant hyperthermic intraperitoneal chemotherapy with three drugs for the prophylactic treatment of carcinomatosis after resection of advanced gastric cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e15588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15588 Background: This prospective study was performed to assess the efficacy and safety of hyperthermic intraperitoneal chemotherapy (HIPEC) with three drugs in patients with curative resection of T3 or T4 advanced gastric cancer. Methods: Patients with curative resection of clinically T3 or T4 advanced gastric cancer were required to be under 75 years of age and to have adequate organ function. After the curative resection of gastric cancer with D2 lymph node dissection and the reconstruction of the alimentary tract, HIPEC was carried out for 30 minutes with 50mg of CDDP, 10mg of MMC, and 1000mg of 5-FU in 5 L saline maintained at 42–43°C. Patients were given an adjuvant S-1 treatment after surgery. Primary endpoint of this study was overall survival. Results: A total of 29 patients were eligible. Pathologically, 8 patients had sub-serosal invasion (pT2(ss)), 18 patients had serosal invasion (pT3), and 3 patients had adjacent organ invasion (pT4). These patients included pT2(ss)pN0 (n=2), pT2(ss)pN1 (n=6), pT3pN0 (n=4), pT3pN1 (n=9), pT3pN2 (n=5), pT4pN0 (n=1), and pT4pN1 (n=2). Median follow-up period was 44 months (10–72 months). Overall 5- year survival rate in all eligible patients was 89.5%. Overall 5-year survival rate in patients with pT2(ss), pT3, or pT4 was 100%, 82.4%, or 100%, respectively. Three patients with pT3 had recurrence of pleural dissemination (n=1), lymph node metastases (n=1), or pulmonary metastases and peritoneal dissemination (n=1). A total of 7 patients had postoperative complications such as continuous pancreatic juice secretion (13.8%), abdominal abscess (10.3%), leakage of the anastomosis (3.4%), and pulmonary insufficiency (10.3%). Conclusions: The present study suggests that HIPEC with three drugs after curative resection of advanced gastric primary cancer is associated with improved overall survival with an acceptable morbidity. No significant financial relationships to disclose.
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Affiliation(s)
- S. Murata
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - H. Naito
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - H. Yamamoto
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - E. Mekata
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - T. Shimizu
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - H. Shiomi
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - S. Naka
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - H. Abe
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - Y. Kurumi
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
| | - T. Tani
- Shiga University of Medical Science, Otsu, Japan; Shiga University of Medical Science, Otsu, Japan
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Tojo T, Tojo T, Naito H, Kimura M, Takasawa S, Dohi Y, Nagata Y, Taniguchi S. Regenerating gene 1α (REG 1α) expression and new treatment strategies in early non-small cell lung cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e22178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e22178 Background: Regenerating gene (REG) I was originally isolated as an endogenous growth factor from pancreatic islet β cells. REG Iα protein is suggested to be involved in carcinogenesis in various gastroenterologic tissues. In the present study, to elucidate roles for REG Iα in non-small cell lung cancer (NSCLC), we investigated REG Iα expression in NSCLCs, focusing especially on its relationship with prognosis. Methods: We enrolled 70 NSCLCs (adenocarcinoma (AC)(n=48) and squamous cell carcinoma (SCC)(n=22)) who received surgery at Nara Medical University Hospital. Total RNA was extracted from each tumor tissue and corresponding normal lung tissue (NL)(n=70), cDNA was then reverse-transcribed from total RNA, and quantitative real-time reverse transcriptase-polymerase chain reaction was then carried out. The expression level of REG Iα in each sample was normalized with respect to that of β-actin, and the cutoff level was set at average+3SD expression of the 70 NLs. We also examined the relationship between REG 1α expression in the tumor tissue and the prognosis. Results: Six (12.5%) of the 48 ACs and 5 (22.7%) of the 22 SCCs were positive for REG Iα gene, and which is higher than that of NLs (2 of 70: 2.9%). After median follow-up of 26.2 months, 12 patients died due to disease progression. The survival rate among the REG 1α positive patients was significantly worse than among the REG 1α negative patients in ACs (P<0.05), and not significantly but worse in SCCs (P=0.07). In case of stage I, none of REG 1α negative patient died in both ACs and SCCs compared with 4 patients died of positive patients (AC:2, SCC:2), and also the survival rate among the REG 1α positive patients was significantly worse than among the negative patients in ACs (P<0.01) and SCCs (P<0.05). Disease free survival of REG 1α positive patients was also worse than negative patients in ACs (P<0.05) and SCCs (P=0.16). Conclusions: REG Iα expression in NSCLCs may be the risk factor for poor prognosis, and we anticipate that it will enable us to provide more appropriate and individualized treatment to patients of early NSCLC. No significant financial relationships to disclose.
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Affiliation(s)
- T. Tojo
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - T. Tojo
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - H. Naito
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - M. Kimura
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - S. Takasawa
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - Y. Dohi
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - Y. Nagata
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
| | - S. Taniguchi
- Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health; Nara Medical University School, Kashihara City, Japan; Department of Thoracic and Cardiovascular Surgery, Biochemistry, Public Health
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