1
|
Kobayashi R, Sakazaki M, Nagai Y, Okamoto T, Hashimoto Y, Sato K, Seki S, Hata U, Esaki K, Tanigawa R, Mitsuoka A, Funaki A, Niki Y, Hashiguchi T, Negoro H. Habitual isomaltulose intake reduces arterial stiffness associated with postprandial hyperglycemia in middle-aged and elderly people: a randomized controlled trial. Heart Vessels 2024; 39:123-134. [PMID: 37777673 DOI: 10.1007/s00380-023-02316-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/06/2023] [Indexed: 10/02/2023]
Abstract
Endothelin-1 (ET-1), produced by vascular endothelial cells, plays a pivotal role in the regulation of vascular tone. Isomaltulose, a naturally occurring sweetener and structural isomer of sucrose, reduces postprandial hyperglycemia, but its effect on arteriosclerosis due to hyperglycemia is unknown. The effects of 12 weeks of isomaltulose administration on ET-1 levels, a peptide that regulates arterial stiffness, blood pressure, and vascular tone, were tested before and after an oral glucose tolerance test. Fifty-four healthy middle-aged and older adults (30 men and 24 women) were divided into two groups: (1) a 25 g isomaltulose jelly drink intake group (Group I, 27 participants, mean age 55 ± 1 years) and (2) a sucrose jelly drink intake group (Group S, 27 participants, mean age 55 ± 1 years), each consuming isomaltulose or sucrose daily for 12 weeks, and a randomized, controlled study was conducted. Participants visited the laboratory before the intervention and 4, 8, and 12 weeks after the intervention to measure carotid-femoral (cf) and brachial-ankle (ba) pulse wave velocity (PWV), systolic blood pressure (BP), plasma glucose (PG), insulin, and ET-1 levels before and 60 and 120 min after a 75-g OGTT. baPWV, and ET-1 levels before intervention were significantly increased after 75-g OGTT compared to before 75-g OGTT in both groups (p < 0.05). The post-intervention baPWV, and ET-1 levels were significantly increased after 75-g OGTT in Group S compared to before 75-g OGTT (p < 0.05), whereas no significant changes were observed in Group I. These results suggest that consumption of isomaltulose, which has a lower GI than sucrose, is more effective in preventing the increases in systemic arterial stiffness associated with postprandial hyperglycemia in healthy middle-aged and older adults.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Department of Natural & Environmental Science, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo, 120-0045, Japan.
| | - Miki Sakazaki
- Life Energy Business Development Unit, Mitsui DM Group R&D Center, Mitsui DM Sugar Co., Ltd., 2-28-7 Kamiochiai, Shinjuku-ku, Tokyo, 161-0034, Japan
| | - Yukie Nagai
- Life Energy Business Development Unit, Mitsui DM Group R&D Center, Mitsui DM Sugar Co., Ltd., 2-28-7 Kamiochiai, Shinjuku-ku, Tokyo, 161-0034, Japan
| | - Takanobu Okamoto
- Department of Exercise Physiology, Nippon Sport Science University, 7-1-1, Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Yuto Hashimoto
- Department of Exercise Physiology, Nippon Sport Science University, 7-1-1, Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Kaori Sato
- Health and Physical Education Program, International Christian University, 3-10-2, Osawa, Mitaka-shi, Tokyo, 181-0015, Japan
| | - Shotaro Seki
- Graduate School of Health and Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Urara Hata
- Graduate School of Health and Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Kazuki Esaki
- Graduate School of Health and Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Ryuya Tanigawa
- Graduate School of Health and Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Amane Mitsuoka
- Graduate School of Health and Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-ku, Tokyo, 158-8508, Japan
| | - Akiko Funaki
- Department of Judo Therapy, Teikyo University of Science, 2525 Yatsusawa, Uenohara-shi, Yamanashi, 409-0193, Japan
| | - Yasuhiro Niki
- Department of Sport Management, Shobi University, 1-1-1 Toyodacho, Kawagoe-shi, Saitama, 350-1110, Japan
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo, 120-0045, Japan
| | - Hideyuki Negoro
- Department of Medicine, Nara Medical University, 840 Shijo, Kashihara-shi, Nara, 634-8521, Japan
| |
Collapse
|
2
|
Kobayashi R, Asaki K, Hashiguchi T, Negoro H. Effect of aerobic exercise training frequency on arterial stiffness in middle-aged and elderly females. J Phys Ther Sci 2022; 34:347-352. [PMID: 35527837 PMCID: PMC9057678 DOI: 10.1589/jpts.34.347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/01/2022] [Indexed: 11/24/2022] Open
Abstract
[Purpose] This study aimed to determine the effects of aerobic exercise training
frequency on arterial stiffness in postmenopausal females. [Participants and Methods] This
study included 45 postmenopausal females randomly assigned to one of the following three
groups: 1) low-frequency training group (aerobic exercise training twice per week); 2)
high-frequency training group (aerobic exercise training four times per week); and 3)
control group (no training). Each group was subjected to an 8-week intervention period.
Both traditional and newer indexes were measured immediately before and after the 8-week
intervention period. [Results] In the low-frequency training group, carotid-femoral pulse
wave velocity and arterial velocity pulse index decreased post 8 weeks compared with those
at baseline. In the high-frequency training group, carotid-femoral, brachial-ankle, and
heart-brachial pulse wave velocities and arterial velocity pulse and arterial
pressure-volume indexes decreased post 8 weeks compared to those at baseline. In the
control group, no change in any indices post 8 weeks compared to those at baseline was
observed. [Conclusion] Carotid-femoral pulse wave velocity was lower after aerobic
training than before training in both the exercise groups. Thus, aerobic exercise training
might have a beneficial effect on aortic stiffness, regardless of the training frequency
in this population.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental Education, Department of Natural & Environmental Science, Teikyo University of Science: 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Kenji Asaki
- Department of Tokyo Judo Therapy, Teikyo University of Science, Japan
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, Japan
| | | |
Collapse
|
3
|
Kobayashi R, Sakazaki M, Nagai Y, Asaki K, Hashiguchi T, Negoro H. Effects of Different Types of Carbohydrates on Arterial Stiffness: A Comparison of Isomaltulose and Sucrose. Nutrients 2021; 13:nu13124493. [PMID: 34960045 PMCID: PMC8707962 DOI: 10.3390/nu13124493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/11/2021] [Accepted: 12/12/2021] [Indexed: 11/16/2022] Open
Abstract
Increased arterial stiffness during acute hyperglycemia is a risk factor for cardiovascular disease, but the type of carbohydrate that inhibits it is unknown. The purpose of this study was to determine the efficacy of low-glycemic-index isomaltulose on arterial stiffness during hyperglycemia in middle-aged and older adults. Ten healthy middle-aged and older adult subjects orally ingested a solution containing 25 g of isomaltulose (ISI trial) and sucrose (SSI trial) in a crossover study. In the SSI trial, the brachial-ankle (ba) pulse wave velocity (PWV) increased 30, 60, and 90 min after ingestion compared with that before ingestion (p < 0.01); however, in the ISI trial, the baPWV did not change after ingestion compared with that before ingestion. Blood glucose levels 30 min after intake were lower in the ISI trial than in the SSI trial (p < 0.01). The baPWV and systolic blood pressure were positively correlated 90 min after isomaltulose and sucrose ingestion (r = 0.640, p < 0.05). These results indicate that isomaltulose intake inhibits an acute increase in arterial stiffness. The results of the present study may have significant clinical implications on the implementation of dietary programs for middle-aged and elderly patients.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental Education, Teikyo University of Science, Tokyo 120-0045, Japan
- Correspondence: ; Tel.: +81-80-9193-3605
| | - Miki Sakazaki
- Research & Development Division, Mitsui Sugar Co., Ltd., Tokyo 103-8423, Japan; (M.S.); (Y.N.)
| | - Yukie Nagai
- Research & Development Division, Mitsui Sugar Co., Ltd., Tokyo 103-8423, Japan; (M.S.); (Y.N.)
| | - Kenji Asaki
- Department of Tokyo Judo Therapy, Teikyo University of Science, Tokyo 120-0045, Japan;
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, Tokyo 120-0045, Japan;
| | - Hideyuki Negoro
- Harvard PKD Center for Polycystic Kidney Disease Research, Boston, MA 02115, USA;
- Faculty of Medicine, Nara Medical University, Nara 634-8521, Japan
| |
Collapse
|
4
|
Miyashita S, Isoda S, Hirose N, Hashiguchi T. Identification of the Core Activate Position for a Seated Subject: Proposal of a new Exercise Method for Maintenance Rehabilitation. Prog Rehabil Med 2021; 6:20210036. [PMID: 34557606 PMCID: PMC8419633 DOI: 10.2490/prm.20210036] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 02/23/2021] [Accepted: 08/25/2021] [Indexed: 11/15/2022] Open
Abstract
Objectives: This study aimed to identify a position for core muscle activation (core activate
position) for a seated subject and to design an exercise method using this position for
rehabilitation during the daily maintenance or maintenance stages. Methods: Thirteen young men participated as subjects in this study. We manufactured a chair in
which the seat had an adjustable forward tilt angle. The subjects underwent
ultrasonographic measurements of the thickness of the transversus abdominis, internal
oblique, and external oblique muscles while sitting in the chair with the seat angle
adjusted to 0°, 6°, or 12°. Further, we conducted image analysis to determine the
positional relationships of these muscles using the following four points as landmarks:
the anterior superior iliac spine, the posterior superior iliac spine, the fourth lumbar
vertebra, and the seventh thoracic vertebra. Results: Significant increases in the thickness of the transversus abdominis and external
oblique muscles were observed when the seat forward tilt angle was adjusted to 12° (P
<0.05). In the core activate position (which demonstrated effective activation of the
transversus abdominis), the posterior superior iliac spine, the fourth lumbar vertebra,
and the seventh thoracic vertebra were aligned in a straight line that was nearly
perpendicular to the line connecting the anterior superior iliac spine and the posterior
superior iliac spine. Conclusions: This postural guidance can be applied to core exercise methods during maintenance
rehabilitation.
Collapse
Affiliation(s)
- Satoshi Miyashita
- Graduate School of Medical Science, Teikyo University of Science, Graduate School, Tokyo, Japan
| | - Shuma Isoda
- Department of Lifestyle Rehabilitation, Long-Term Care Health Facility, Yamayuri, Nagano, Japan
| | - Noboru Hirose
- Graduate School of Medical Science, Teikyo University of Science, Graduate School, Tokyo, Japan
| | - Takeo Hashiguchi
- Center for Teacher Development, Teikyo University of Science, Tokyo, Japan
| |
Collapse
|
5
|
Kobayashi R, Sato K, Takahashi T, Asaki K, Iwanuma S, Ohashi N, Hashiguchi T. Effects of a short-term increase in physical activity on arterial stiffness during hyperglycemia. J Clin Biochem Nutr 2020; 66:238-244. [PMID: 32523251 DOI: 10.3164/jcbn.19-69] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 08/03/2019] [Accepted: 09/05/2019] [Indexed: 01/10/2023] Open
Abstract
We examined the effects of increasing physical activity on arterial stiffness during hyperglycemia. Nineteen glucose-intolerant elderly participated in the study. We randomly assigned 10 participants to increase their daily activity in everyday life, regardless of the time or intensity, for 1 month (PAI group) (age, 74.6 ± 1.3 years; mean ± SE) and nine participants to maintain their level of activity (CON group) (age, 79.2 ± 2.1 years; mean ± SE). The 75-g oral glucose tolerance test was conducted in each participant in both groups before and after the start of the intervention to confirm glucose intolerance. Brachial-ankle pulse wave velocity and cardio-ankle vascular index significantly increased from baseline at 30, 60, and 90 min after the 75-g glucose ingestion after the intervention in the CON group (p<0.05), but not in the PAI group. Heart-brachial pulse wave velocity did not change compared to baseline after the 75-g glucose ingestion in either group and did not change from baseline at 30, 60, and 90 min after the 75-g glucose ingestion before and after the intervention in both groups. The present findings indicate that a short-term increase in physical activity suppresses the increase in arterial stiffness after glucose intake.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Kaori Sato
- College of Liberal Arts, International Christian University, 3-10-2 Osawa, Mitaka-shi, Tokyo 181-8585, Japan
| | - Toshihiko Takahashi
- Adachi-ku Track and Field Association, 1-33-22 Yanaka, Adachi-ku, Tokyo 120-0006, Japan
| | - Kenji Asaki
- Department of Tokyo Judo Therapy, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Soichiro Iwanuma
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Nobuyuki Ohashi
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| |
Collapse
|
6
|
Kobayashi R, Kasahara Y, Ikeo T, Asaki K, Sato K, Matsui T, Iwanuma S, Ohashi N, Hashiguchi T. Effects of different intensities and durations of aerobic exercise training on arterial stiffness. J Phys Ther Sci 2020; 32:104-109. [PMID: 32158071 PMCID: PMC7032987 DOI: 10.1589/jpts.32.104] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/04/2019] [Indexed: 11/25/2022] Open
Abstract
[Purpose] In the present study, we investigated the effects of regular aerobic training
with different intensities and durations on new indices of arterial stiffness measured via
an upper-arm oscillometric device. [Participants and Methods] We gathered data from 41
middle-aged and older people (age 65.0 ± 11.7 years). Participants were randomly divided
into five groups: (1) 15 minutes of low intensity aerobic training (n=10); (2) 30 minutes
of low intensity training (n=7); (3) 15 minutes of moderate-intensity training (n=9); (4)
30 minutes of moderate-intensity training (n=8); and (5) a non-training group (n=7).
Training was conducted for 8 weeks, three times per week. Arterial pulse wave index,
arterial pressure-volume index, brachial-ankle and heart-brachial pulse wave velocity,
cardio-ankle vascular index, brachial and ankle blood pressure, heart rate, and peak
oxygen uptake were measured before and after the intervention. [Results] All indicators of
arterial stiffness and brachial and ankle blood pressure in the exercise groups were
significantly lower after versus before the intervention. Peak oxygen uptake did not
differ before versus after the intervention. [Conclusion] The present findings indicate
that regular aerobic exercise may be important in reducing arterial stiffness regardless
of the intensity or duration of aerobic exercise.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental Education, Teikyo University of Science: 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | | | | | - Kenji Asaki
- Department of Tokyo Judo Therapy, Teikyo University of Science, Japan
| | - Kaori Sato
- Health and Physical Education Program, International Christian University, Japan
| | - Takamitsu Matsui
- Department of School Education, Teikyo University of Science, Japan
| | - Soichiro Iwanuma
- Department of School Education, Teikyo University of Science, Japan
| | - Nobuyuki Ohashi
- Department of Sport and Medical Science, Teikyo University, Japan
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, Japan
| |
Collapse
|
7
|
Kobayashi R, Sato K, Sakazaki M, Nagai Y, Iwanuma S, Ohashi N, Hashiguchi T. Acute effects of difference in glucose intake on arterial stiffness in healthy subjects. Cardiol J 2019; 28:446-452. [PMID: 31702047 DOI: 10.5603/cj.a2019.0108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 05/07/2019] [Revised: 08/26/2019] [Accepted: 09/29/2019] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Post-prandial hyperglycemia is associated with higher cardiovascular risk, which causes arterial stiffening and impaired function. Although post-prandial increases in blood glucose are proportional to the level of intake, the acute effects of different glucose intakes on arterial stiffness have not been fully characterized. The present study aimed to determine the acute effects of differences in glucose intake on arterial stiffness. METHODS Six healthy middle-aged and elderly individuals (mean age, 60.0 ± 12.1 years) were orally administered 15, 20, and 25 g of glucose on separate days in a randomized, controlled, cross-over fashion. Brachial-ankle pulse wave velocity, heart-brachial pulse wave velocity, cardio-ankle vascular index, brachial and ankle blood pressure, heart rate, and blood glucose and serum insulin concentrations before and 30, 60, and 90 min after glucose ingestion were measured. RESULTS Compared to baseline, brachial-ankle pulse wave velocity was higher at 30, 60 and 90 min after ingestion of 25 g glucose, and higher at 90 min after ingestion of 20 g glucose, but at no time points after ingestion of 15 g. Cardio-ankle vascular index was higher at 60 min than at baseline after ingestion of 25 g glucose, but not after ingestion of 15 or 20 g. CONCLUSIONS These results suggest that brachial-ankle pulse wave velocity and cardio-ankle vascular index is affected by the quantity of glucose ingested. Proposed presently is that glucose intake should be reduced at each meal to avoid increases in brachial-ankle pulse wave velocity and cardio-ankle vascular index during acute hyperglycemia.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi- ku, 120-0045 Tokyo,, Japan.
| | | | | | | | - Soichiro Iwanuma
- Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi- ku, 120-0045 Tokyo,, Japan
| | - Nobuyuki Ohashi
- Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi- ku, 120-0045 Tokyo,, Japan
| | - Takeo Hashiguchi
- Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi- ku, 120-0045 Tokyo,, Japan
| |
Collapse
|
8
|
Kobayashi R, Sato K, Takahashi T, Asaki K, Iwanuma S, Ohashi N, Hashiguchi T. Arterial stiffness during hyperglycemia in older adults with high physical activity vs low physical activity. J Clin Biochem Nutr 2019; 65:146-152. [PMID: 31592209 DOI: 10.3164/jcbn.19-32] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 04/14/2019] [Accepted: 04/23/2019] [Indexed: 12/27/2022] Open
Abstract
We compared arterial stiffness after glucose intake in active and inactive elderly people with impaired glucose tolerance and clarified whether physical activity was associated with arterial stiffness after ingestion of glucose. Twenty older adults with impaired glucose tolerance were analyzed in a cross-sectional design. Based on the international physical activity questionnaire, participants were divided into the active group (daily step count: 10,175.9 ± 837.8 steps/day, n = 10) or the inactive group (daily step count: 4,125.6 ± 485.9 steps/day, n = 10). Brachial-ankle (systemic) and heart-brachial (aortic) pulse wave velocity and cardio-ankle vascular index (systemic) were increased at 30, 60, and 90 min compared to baseline after a 75-g oral glucose tolerance test in the inactive but not the active group. Heart-brachial pulse wave velocity did not change compared to baseline after a 75-g oral glucose tolerance test in either group. The area under the curve for brachial-ankle pulse wave velocity was associated with daily living activity (r = -0.577, p = 0.008), daily step activity (r = -0.546, p = 0.013), and the daily step count (r = -0.797, p = 0.0001). The present findings indicate that physical activity or inactivity is associated with arterial stiffness following glucose ingestion.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Kaori Sato
- College of Liberal Arts, International Christian University, 3-10-2 Osawa, Mitaka-shi, Tokyo 181-8585, Japan
| | - Toshihiko Takahashi
- Adachi-ku Track and Field Association, 1-33-22 Yanaka, Adachi-ku, Tokyo 120-0006, Japan
| | - Kenji Asaki
- Department of Tokyo Judo Therapy, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Soichiro Iwanuma
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Nobuyuki Ohashi
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| | - Takeo Hashiguchi
- Department of School Education, Teikyo University of Science, 2-2-1 Senju, Sakuragi, Adachi-ku, Tokyo 120-0045, Japan
| |
Collapse
|
9
|
Aryal B, Shimizu T, Kadono J, Furoi A, Komokata T, Gejima K, Yamakuchi M, Hashiguchi T, Imoto Y. Exhaustion of platelet kinetics and its implication in post-resection HCC recurrence. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy269.116] [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
|
10
|
Kobayashi R, Iwanuma S, Ohashi N, Hashiguchi T. New indices of arterial stiffness measured with an upper-arm oscillometric device in active versus inactive women. Physiol Rep 2018; 6:e13574. [PMID: 29484841 PMCID: PMC5827568 DOI: 10.14814/phy2.13574] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/12/2017] [Accepted: 12/13/2017] [Indexed: 11/24/2022] Open
Abstract
Arterial velocity pulse index (AVI) and arterial pressure-volume index (API), new indicators of arterial stiffness, are risk factors for the development of cardiovascular disease. Regular aerobic exercise decreases arterial stiffness. In fact, pulse wave velocity (PWV), index of arterial stiffness, is lower in endurance-trained than in untrained young adults. However, the effect of regular aerobic exercise on AVI and API remains unknown. This study investigates the effect of regular aerobic exercise on AVI and API, new indicators of arterial stiffness. We gathered data from 18 recreationally active females (active group, age: 18 ± 1 years, 2 ± 2 h/week, 3 ± 2 times/week, ≥2 years of aerobic endurance training) and 18 recreationally inactive females (inactive group, age: 18 ± 1 years, ≥2 years without such training) in a cross-sectional study. Height, body weight, body mass index, AVI, API, brachial blood pressure, heart rate, and 20-m multistage shuttle run test were measured in a quiet room at a temperature between 24°C and 25°C. AVI and API were lower in the active group than in the inactive group (P < 0.01). Number of 20-m shuttles was negatively correlated with AVI (P < 0.01, r = -0.8) and API (P < 0.01, r = -0.8). These results suggest that regular aerobic exercise training decreases AVI and API in young females.
Collapse
Affiliation(s)
- Ryota Kobayashi
- Center for Fundamental EducationTeikyo University of ScienceTokyoJapan
| | - Soichiro Iwanuma
- Department of School EducationTeikyo University of ScienceTokyoJapan
| | - Nobuyuki Ohashi
- Department of School EducationTeikyo University of ScienceTokyoJapan
| | - Takeo Hashiguchi
- Department of School EducationTeikyo University of ScienceTokyoJapan
| |
Collapse
|
11
|
Yokokawa H, Kinoshita I, Hashiguchi T, Kako M, Sasaki K, Tamura A, Kintaka Y, Suzuki Y, Ishizuka N, Arai K, Kasahara Y, Kishi M, Kobayashi Y, Takahashi T, Shimizu H, Inoue S. Enhanced exercise-induced muscle damage and muscle protein degradation in streptozotocin-induced type 2 diabetic rats. J Diabetes Investig 2014; 2:423-8. [PMID: 24843525 PMCID: PMC4014900 DOI: 10.1111/j.2040-1124.2011.00130.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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] [Indexed: 11/28/2022] Open
Abstract
Aims/Introduction: The effects of 5‐day voluntary exercise on muscle damage and muscle protein degradation were investigated in a streptozotocin‐induced rat model of moderately glycemic, uncontrolled, type 2 diabetes. Materials and Methods: In the preliminary experiment, an oral glucose tolerance (1.0 g/kg) test was carried out to confirm the development of diabetes 3 days after streptozotocin treatment (30 mg/kg). In the genuine experiment, rats were divided into four groups: (i) non‐diabetic rats without exercise (controls); (ii) non‐diabetic rats with exercise; (iii) diabetic rats without exercise; and (iv) diabetic rats with exercise. After 5 days of voluntary wheel running exercise, blood and 24‐h urine were collected, and levels of serum creatine kinase, a marker of muscle damage, and 24‐h urinary excretion of muscle degradation products were determined. Results: Type 2 diabetic rats with insulin deficiency that exercised had higher serum creatine kinase and greater urinary excretions of creatinine, urea nitrogen and 3‐methylhistidine compared with both type 2 diabetic rats with insulin deficiency and non‐diabetic rats that did not exercise. However, there were no differences in serum creatine kinase and urinary excretions of creatinine, urea nitrogen and 3‐methylhistidine between non‐diabetic rats that did and did not exercise. Conclusions: These findings suggest that muscle damage is induced and muscle protein degradation are enhanced by chronic moderate exercise in moderately glycemic uncontrolled type 2 diabetic rats with insulin deficiency at an intensity level of exercise that does not affect muscle damage and muscle protein degradation in non‐diabetic rats. (J Diabetes Invest, doi: 10.1111/j.2040‐1124.2011.00130.x, 2011)
Collapse
Affiliation(s)
- Hirohide Yokokawa
- Department of General Medicine, Juntendo University School of Medicine
| | - Ikiko Kinoshita
- Department of Nutrition, Faculty of Home Economics, Kyoritsu Women's University, Tokyo
| | - Takeo Hashiguchi
- Department of Nutrition, Faculty of Home Economics, Kyoritsu Women's University, Tokyo
| | - Masako Kako
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Kahoru Sasaki
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Akira Tamura
- Department of Nutrition, Faculty of Health Science, Chukyo Women's University, Nagoya
| | - Yuri Kintaka
- Department of Food Science, Faculty of Dairy Science, Rakuno Gakuen University, Ebetsu, Japan
| | - Yoko Suzuki
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Noriko Ishizuka
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Katsumi Arai
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Yoshiko Kasahara
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Mikiko Kishi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Yoko Kobayashi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Tosei Takahashi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Hiroyuki Shimizu
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Shuji Inoue
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| |
Collapse
|
12
|
Takenouchi K, Shrestha B, Yamakuchi M, Yoshinaga N, Arimura N, Kawaguchi H, Nagasato T, Feil R, Kawahara K, Sakamoto T, Maruyama I, Hashiguchi T. Upregulation of non-β cell-derived vascular endothelial growth factor A increases small clusters of insulin-producing cells in the pancreas. Exp Clin Endocrinol Diabetes 2014; 122:308-15. [PMID: 24839224 DOI: 10.1055/s-0034-1371811] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Pancreatic β cell-derived vascular endothelial growth factor A (VEGF-A) contributes to normal β cell function. We therefore hypothesized that non-β cell-derived VEGF-A may affect its properties in adult mice.We generated transgenic mice expressing human VEGF-A (hVEGF-A) in a visceral smooth muscle cell (SMC)-dominant manner under the control of the transgelin (Tagln/SM22α) promoter via a tamoxifen-induced Cre/loxP recombination system (SM-CreER(T2)/hVEGF mice).SM-CreER(T2)/hVEGF mice received tamoxifen orally followed by microscopic examination of their pancreas 4 weeks after the hVEGF-A induction. The number of clusters of insulin-producing cells (IPCs) in islets, pancreatic ducts, and individual IPCs were counted.The number of small IPC clusters (100-215 μm(2)) in the pancreas increased significantly in SM-CreER(T2)/hVEGF mice compared with SM-CreER(T2)(Ki) mice (473 out of 1 992 counts vs. 199 out of 976 counts, p<0.05), although total IPC area and the number of pancreatic duct IPCs, in proportion to exocrine area, were similar between the 2 groups. Although most small IPC clusters observed in SM-CreER(T2)/hVEGF mice were not accompanied by α and/or δ cells, some were attached to a single or a few α cells. An STZ-induced diabetic state in SM-CreER(T2)/hVEGF mice was slightly ameliorated, with only one point of significance 12 weeks after STZ administration, compared with SM-CreER(T2)(Ki) mice.Upregulation of non-β cell-derived VEGF-A may alter the composition of pancreatic IPCs by increasing the number of small IPC clusters. These findings provide new information on the role of non-β cell-derived VEGF-A to IPC regeneration and insulin production.
Collapse
Affiliation(s)
- K Takenouchi
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - B Shrestha
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - M Yamakuchi
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - N Yoshinaga
- Department of Ophthalmology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - N Arimura
- Department of Ophthalmology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - H Kawaguchi
- Department of Veterinary Experimental Animal Science, Faculty of Agriculture, Kagoshima University, Korimoto, Kagoshima, Japan
| | - T Nagasato
- Systems Biology in Thromboregulation, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - R Feil
- Interfakultäres Institut für Biochemie, University of Tübingen, Tübingen, Germany
| | - K Kawahara
- Laboratory of Functional Foods, Department of Biomedical Engineering Osaka Institute of Technology, Osaka, Japan
| | - T Sakamoto
- Department of Ophthalmology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - I Maruyama
- Systems Biology in Thromboregulation, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - T Hashiguchi
- Department of Laboratory and Vascular Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| |
Collapse
|
13
|
Sakai S, Tosaka T, Tasaka J, Hashiguchi T, Yoshihama I. Taurine uptake by glial cells in the bullfrog sympathetic ganglia. Neurochem Int 2012; 14:193-8. [PMID: 20504417 DOI: 10.1016/0197-0186(89)90121-6] [Citation(s) in RCA: 6] [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: 07/27/1988] [Accepted: 09/28/1988] [Indexed: 10/27/2022]
Abstract
Taurine uptake was studied in the bullfrog sympathetic ganglia. High- and low-affinity components were detected after subtraction of nonsaturable influx from total uptake in a concentration range from 34 nM to 8mM. Taurine uptake was strictly sodium dependent and the sodium dependency curve was sigmoidal, with a Hill number of 1.6, indicating that at least two sodium ions are required for the transport of one taurine molecule. External sodium ion affected both K(m) and V(max) for taurine uptake. Taurine uptake was inhibited by ouabain, but not by tetrodotoxin. These results suggest that sodium concentration gradient across plasma membrane may be the main driving force for taurine uptake. Electron and light microscopic autoradiography showed that glial cells were heavily labeled by [(3)H]taurine while ganglion cells were slightly labeled. The present data suggest that glial uptake may contribute to terminating the effect of taurine in the bullfrog sympathetic ganglia.
Collapse
Affiliation(s)
- S Sakai
- Department of Physiology, Tokyo Medical College, Tokyo, Japan
| | | | | | | | | |
Collapse
|
14
|
Ochiai T, Nishimura K, Watanabe T, Kitajima M, Hashiguchi T, Nakatani A, Sakuyama N, Uchida T, Sato T, Kishine K, Futagawa S, Nagaoka I. Serum iron levels as a predictive factor in FOLFOX/FOLFIRI therapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
15
|
Ochiai T, Nishimura K, Watanabe T, Kitajima M, Hashiguchi T, Nakatani A, Muraki A, Sakuyama N, Futagawa S, Nagaoka I. Personalized adjuvant chemotherapy for colorectal cancer based on an individual 50% inhibitory area under the concentration curve using collagen gel droplet embedded culture-drug sensitivity test. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
16
|
Meng X, Tancharoen S, Kawahara KI, Nawa Y, Taniguchi S, Hashiguchi T, Maruyama I. 1,5-Anhydroglucitol attenuates cytokine release and protects mice with type 2 diabetes from inflammatory reactions. Int J Immunopathol Pharmacol 2010; 23:105-19. [PMID: 20377999 DOI: 10.1177/039463201002300110] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
1,5-anhydroglucitol (1,5-AG) decreases in diabetic patients and is used as a marker of glycemic control. Type 2 diabetic patients are susceptibile to lipopolysaccharides (LPS), which stimulate macrophages to release large quantities of tumor necrosis factor (TNF)-alpha and interleukin (IL)-6. This study examines the effects of 1,5-AG on lung inflammation induced by LPS and consequent systemic inflammation to determine whether the decrease of 1,5-AG concentration induces susceptibility to LPS. Before the challenge with LPS (1 mg/kg in vivo and 500 ng/ml in vitro), we pretreated db/db mice and RAW264.7 cells with 1,5-AG at 38.5 mg/kg and 500 microg/ml, respectively. The levels of IL-6, TNF-alpha, macrophage chemoattractant protein (MCP)-1 and IL-1beta in the serum and in the cell supernatants were measured. We also measured macrophage recruitment and the expression of inducible nitric oxide synthase (iNOS) in pulmonary tissues. We found that 1,5-AG attenuated serum cytokine release and protected db/db mice from LPS-induced pulmonary inflammation. In addition, 1,5-AG suppressed cytokine release and iNOS expression by suppressing Akt/NF-kB activity in RAW264.7 cells. These results suggest that 1,5-AG may be a mediator in, as well as marker for diabetes, and 1,5-AG intake may confer tolerance to LPS in patients with type 2 diabetes.
Collapse
Affiliation(s)
- X Meng
- Department of Laboratory and Vascular Medicine Cardiovascular and Respiratory Disorders Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | | | | | | | | | | | |
Collapse
|
17
|
Saruwatari H, Kamiwada R, Matsushita S, Hashiguchi T, Kawai K, Kanekura T. Tungsten granuloma attributable to a piece of lawn-mower blade. Clin Exp Dermatol 2009; 34:e268-9. [DOI: 10.1111/j.1365-2230.2008.03186.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
18
|
Kintaka Y, Osaka T, Suzuki Y, Hashiguchi T, Niijima A, Kageyama H, Fumiko T, Shioda S, Inoue S. Effects of gastric vagotomy on visceral cell proliferation induced by ventromedial hypothalamic lesions: role of vagal hyperactivity. J Mol Neurosci 2009; 38:243-9. [PMID: 19455436 DOI: 10.1007/s12031-009-9200-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2008] [Accepted: 04/02/2009] [Indexed: 12/19/2022]
Abstract
In rats, ventromedial hypothalamic (VMH) lesions induce cell proliferation in the visceral organs (stomach, small intestine, liver, and pancreas) due to hyperactivity of the vagus nerve. To investigate the effects of selective gastric vagotomy on VMH lesion-induced cell proliferation and secretion of gastric acid, we assessed the mitotic index (the number of proliferating cell nuclear antigen (PCNA)-immunopositive cells per 1,000 cells in the gastric mucosal cell layer) and measured the volume of secreted basal gastric acid. Furthermore, to explore whether or not ethanol-induced acute gastric mucosal lesions (AGML) lead to ulcer formation in VMH-lesioned rats, we assessed the ulcer index of both sham-operated and VMH-lesioned rats after administration of ethanol. VMH lesions resulted in an increased mitotic index and thickness of the gastric mucosal cell layer and gave rise to the hypersecretion of gastric acid. Selective gastric vagotomy restored these parameters to normal without affecting cell proliferation in other visceral organs. Ethanol-induced AGML caused ulcers in sham VMH-lesioned rats, whereas VMH-lesioned rats were less likely to exhibit such ulcers. These results suggest that VMH lesion-induced vagally mediated cell proliferation in the visceral organs is associated with hyperfunction in these organs, and VMH lesion-induced resistance to ethanol may be due to thickening of the gastric mucosal cell layer resulting from cell proliferation in the gastric mucosa-this in turn is due to hyperactivity of the vagus nerve.
Collapse
|
19
|
Hashiguchi T, Bean LS, Maeda Y, Taketomi M. Genetic variation of pancreatic esterase isozyme in Japanese quail. Anim Blood Groups Biochem Genet 2009; 7:65-72. [PMID: 999053 DOI: 10.1111/j.1365-2052.1976.tb01380.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A genetic variation was found in pancreatic esterases of Japanese quail which appeared to be arylesterase. It was found on the cathode side in the agar gel electrophoresis. Three phenotypes, A,B and AB, were observed. These phenotypes were shown to be controlled by one autosomal locus, designated as Es-4, with co-dominant alleles Es-4A and Es-4B. Es-4 esterase isozymes were detected in all the individuals from about 4 days of age, but the activity was very weak. However, it gradually increased to reach a level almost the same as that of a mature quail from about 15 days of age.
Collapse
|
20
|
Abstract
Trends in heterozygosity in the process of producing inbred strains of Japanese quail were examined through the characterization of protein polymorphisms based on gene freqencies of 7 polymorphic loci. The average heterozygosity (Ho) at generation 1 was 0.472 and it decreased with increasing inbreeding coefficient (F) to 0.214 at generation 5 when F was 0.594. In all generations, the observed heterozygosities of the surviving families tended to be higher than those of the families that did not survive. The frequency of heterozygotes of the Es-4 locus in surviving families was higher than that of the extinct families in each generation and the difference became conspicuous in generation 4. These results suggest that a heterozygote advantage of Es-4 locus is revealed by inbreeding.
Collapse
|
21
|
Abstract
Measles virus (MV) has two envelope glycoproteins, the hemagglutinin (H) and fusion protein, which are responsible for attachment and membrane fusion, respectively. Signaling lymphocyte activation molecule (SLAM, also called CD150), a membrane glycoprotein expressed on immune cells, acts as the principal cellular receptor for MV, accounting for its lymphotropism and immunosuppressive nature. MV also infects polarized epithelial cells via an as yet unknown receptor molecule, thereby presumably facilitating transmission via aerosol droplets. Vaccine and laboratory-adapted strains of MV use ubiquitously expressed CD46 as an alternate receptor through amino acid substitutions in the H protein. The crystal structure of the H protein indicates that the putative binding sites for SLAM, CD46, and the epithelial cell receptor are strategically located in different positions of the H protein. Other molecules have also been implicated in MV infection, although their relevance remains to be determined. The identification of MV receptors has advanced our understanding of MV tropism and pathogenesis.
Collapse
Affiliation(s)
- Y Yanagi
- Department of Virology, Faculty of Medicine, Kyushu University, 812-8582, Fukuoka, Japan.
| | | | | | | |
Collapse
|
22
|
Deguchi T, Hashiguchi T, Horinouchi S, Uto T, Oku H, Kimura K, Makisumi K, Arimura K. Serum VEGF increases in diabetic polyneuropathy, particularly in the neurologically active symptomatic stage. Diabet Med 2009; 26:247-52. [PMID: 19317819 DOI: 10.1111/j.1464-5491.2009.02680.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIM To identify the relationship between vascular endothelial growth factor (VEGF) and diabetic polyneuropathy (DPN). METHODS Two hundred and twenty diabetic patients participated, 113 with DPN and 107 without DPN. All patients were also classified according to the four stages of DPN (no neuropathy: stage 0; asymptomatic neuropathy: stage 1; symptomatic neuropathy: stage 2; disabling neuropathy: stage 3). Serum VEGF concentration was measured using an enzyme-linked immunosorbent assay (ELISA) and levels between the patients with and without DPN and also between the different stages of DPN, were compared. RESULTS The mean serum VEGF level in all patients was 264.6 +/- 218.8 pg/ml. The mean serum VEGF level was higher in patients with DPN (310.1 +/- 224.3 pg/ml) than in the patients without DPN (216.5 +/- 204.0 pg/ml, P = 0.0014). Serum VEGF was higher in the 'symptomatic' stage (stage 2, 364.8 +/- 225.9 pg/ml) in comparison with the 'asymptomatic' (stage 1, 256.7 +/- 224.4 pg/ml, P = 0.015) and 'disabling' (stage 3, 180.3 +/- 109.4 pg/ml, P = 0.042) stages. The mean serum VEGF level in patients with diabetic retinopathy (261.1 +/- 210.6 pg/ml) and in patients with diabetic nephropathy (241.5 +/- 185.7 pg/ml) was not increased. CONCLUSIONS The serum VEGF level is increased in patients with DPN, particularly in patients in the neurologically active 'symptomatic' stage.
Collapse
Affiliation(s)
- T Deguchi
- Department of Diabetes and Endocrine Medicine, Hematology, Endocrinology and Diabetology Center, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Tancharoen S, Matsuyama T, Abeyama K, Matsushita K, Kawahara K, Sangalungkarn V, Tokuda M, Hashiguchi T, Maruyama I, Izumi Y. The role of water channel aquaporin 3 in the mechanism of TNF-α-mediated proinflammatory events: Implication in periodontal inflammation. J Cell Physiol 2008; 217:338-49. [DOI: 10.1002/jcp.21506] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
24
|
Morimoto Y, Kawahara KI, Tancharoen S, Kikuchi K, Matsuyama T, Hashiguchi T, Izumi Y, Maruyama I. Tumor necrosis factor-α stimulates gingival epithelial cells to release high mobility-group box 1. J Periodontal Res 2007; 43:76-83. [DOI: 10.1111/j.1600-0765.2007.00996.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
25
|
|
26
|
Ito T, Kawahara K, Nakamura T, Yamada S, Nakamura T, Abeyama K, Hashiguchi T, Maruyama I. High-mobility group box 1 protein promotes development of microvascular thrombosis in rats. J Thromb Haemost 2007; 5:109-16. [PMID: 17239166 DOI: 10.1111/j.1538-7836.2006.02255.x] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.2] [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: 12/20/2022]
Abstract
BACKGROUND Sepsis is a life-threatening disorder resulting from systemic inflammatory and coagulatory responses to infection. High-mobility group box 1 protein (HMGB1), an abundant intranuclear protein, was recently identified as a potent lethal mediator of sepsis. However, the precise mechanisms by which HMGB1 exerts its lethal effects in sepsis have yet to be confirmed. We recently reported that plasma HMGB1 levels correlated with disseminated intravascular coagulation (DIC) score, indicating that HMGB1 might play an important role in the pathogenesis of DIC. OBJECTIVES To investigate the mechanisms responsible for the lethal effects of HMGB1, and more specifically, to explore the effects of HMGB1 on the coagulation system. METHODS Rats were exposed to thrombin with or without HMGB1, and a survival analysis, pathologic analyses and blood tests were conducted. The effects of HMGB1 on the coagulation cascade, anticoagulant pathways and surface expression of procoagulant or anticoagulant molecules were examined in vitro. RESULTS Compared to thrombin alone, combined administration of thrombin and HMGB1 resulted in excessive fibrin deposition in glomeruli, prolonged plasma clotting times, and increased mortality. In vitro, HMGB1 did not affect clotting times, but inhibited the anticoagulant protein C pathway mediated by the thrombin-thrombomodulin complex, and stimulated tissue factor expression on monocytes. CONCLUSIONS These findings demonstrate the procoagulant role of HMGB1 in vivo and in vitro. During sepsis, massive accumulation of HMGB1 in the systemic circulation would promote the development of DIC.
Collapse
Affiliation(s)
- T Ito
- Department of Laboratory and Vascular Medicine, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Kakihana Y, Hayashida K, Takahashi Y, Setoguchi Y, Sonoda T, Imabayashi T, Matsunaga A, Hashiguchi T, Kanmura Y, Nakazawa H. Crit Care 2006; 10:P290. [DOI: 10.1186/cc4637] [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: 11/10/2022] Open
|
28
|
Maruyama I, Abeyama K, Ito T, Biswas K, Kawahara K, Hashiguchi T, Yakabe K, Yamada S, Wada H. Crit Care 2005; 9:P176. [DOI: 10.1186/cc3239] [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: 11/10/2022] Open
|
29
|
Arisato T, Hashiguchi T, Sarker KP, Arimura K, Asano M, Matsuo K, Osame M, Maruyama I. Highly accumulated platelet vascular endothelial growth factor in coagulant thrombotic region. J Thromb Haemost 2003; 1:2589-93. [PMID: 14675094 DOI: 10.1046/j.1538-7836.2003.00475.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) is an endothelial cell-specific potent mitogen that induces angiogenesis and microvascular hyperpermeability. Recently, it has been reported that megakaryocytes and platelets contain VEGF in their cytoplasm. OBJECTIVES To elucidate and confirm the bioactivity and role of VEGF in platelets (platelet VEGF), which may be closely related to vascular thrombosis and atherosclerosis. METHODS The VEGF localization in megakaryocytes on bone marrow smears was analyzed by immunofluorescence and confocal laser scanning microscopic analysis. The intracellular VEGF expressed in platelets was determined by flow cytometric analysis. Platelet-rich plasma and washed platelets were used to analyze the secretion of VEGF during platelet aggregation by thrombin or gelatinase A (matrix metalloproteinase-2) stimulation. Immunohistochemical studies for VEGF in the thrombotic region were performed. RESULTS AND CONCLUSIONS Megakaryocytes and platelets are a very rich source of circulating VEGF. Gelatinase A, which is closely associated with vascular remodeling, enhances the VEGF levels released from platelets. VEGF was clearly detected in the fibrin nets of a thrombus. Taken together, platelet VEGF is bioactive as a direct angiogenic growth factor, and may play a very important role in wound healing and atherosclerosis in conjunction with other platelet cytokines such as platelet-derived growth factor, platelet-derived endothelial cell growth factor, transforming growth factor (TGF)-alpha, and TGF-beta.
Collapse
Affiliation(s)
- T Arisato
- Department of Laboratory Medicine, Kagoshima University, School of Medicine, Sakuragaoka, Kagoshima, Japan
| | | | | | | | | | | | | | | |
Collapse
|
30
|
Arisato T, Sarker KP, Kawahara K, Nakata M, Hashiguchi T, Osame M, Kitajima I, Maruyama I. The agonist of the protease-activated receptor-1 (PAR) but not PAR3 mimics thrombin-induced vascular endothelial growth factor release in human smooth muscle cells. Cell Mol Life Sci 2003; 60:1716-24. [PMID: 14513837 DOI: 10.1007/s00018-003-3140-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Thrombin, a serine protease generated by the activation of the blood coagulation cascade following vessel injury, induces vascular endothelial growth factor-(VEGF) release. However, the molecular mechanism of thrombin-induced VEGF release is largely unknown. Anagonist of protease-activated receptor-i (PARI), SFLL-RNPNDKYEPF, mimicked thrombin-induced VEGF release in human vascular smooth muscle (HVSM) cells, as determined by enzyme-linked immunosorbent assay, reverse transcriptase-polymerase chain reaction, and Northern blotting. In contrast, the agonist of PAR3, TFR- GAP, did not affect VEGF release or expression. SFLL-RNPNDKYEPF, but not TFRGAP, up-regulated [Ca2-]i.Moreover, the calcium ionophone A23187 was found to trigger VEGF release in HVSM cells. Thrombin-inducedVEGF release was blocked by anti-thrombin, heparin, a synthetic thrombin receptor inhibitor E5510, the calcium chelator BAPTA, the protein kinase C inhibitor calphostin C, and the MEK1/2 inhibitor U0126. Thus, our data show that thrombin caused VEGF release via PARI activation in a manner dependent on [Ca2+]i and p44/42 downstream from the receptor activation.
Collapse
MESH Headings
- Base Sequence
- Calcium/metabolism
- Cells, Cultured
- DNA, Complementary/genetics
- Endothelial Growth Factors/biosynthesis
- Endothelial Growth Factors/genetics
- Humans
- Intercellular Signaling Peptides and Proteins/biosynthesis
- Intercellular Signaling Peptides and Proteins/genetics
- Lymphokines/biosynthesis
- Lymphokines/genetics
- MAP Kinase Signaling System/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- NF-kappa B/metabolism
- Peptide Fragments/pharmacology
- Phosphatidylinositol 3-Kinases/metabolism
- Protein Serine-Threonine Kinases
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-akt
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptor, PAR-1
- Receptors, Thrombin/agonists
- Thrombin/pharmacology
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
Collapse
Affiliation(s)
- T Arisato
- Department of Laboratory and Molecular Medicine, Faculty of Medicine, Kagoshima University, Kagoshima, Japan
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Sugimoto N, Masuda M, Hashiguchi T. Frequency response of nonlinear oscillations of air column in a tube with an array of Helmholtz resonators. J Acoust Soc Am 2003; 114:1772-1784. [PMID: 14587579 DOI: 10.1121/1.1600719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Nonlinear cubic theory is developed to obtain a frequency response of shock-free, forced oscillations of an air column in a closed tube with an array of Helmholtz resonators connected axially. The column is assumed to be driven by a plane piston sinusoidally at a frequency close or equal to the lowest resonance frequency with its maximum displacement fixed. By applying the method of multiple scales, the equation for temporal modulation of a complex pressure amplitude of the lowest mode is derived in a case that a typical acoustic Mach number is comparable with the one-third power of the piston Mach number, while the relative detuning of a frequency is comparable with the quadratic order of the acoustic Mach number. The steady-state solution gives the asymmetric frequency response curve with bending (skew) due to nonlinear frequency upshift in addition to the linear downshift. Validity of the theory is checked against the frequency response obtained experimentally. For high amplitude of oscillations, an effect of jet loss at the throat of the resonator is taken into account, which introduces the quadratic loss to suppress the peak amplitude. It is revealed that as far as the present check is concerned, the weakly nonlinear theory can give quantitatively adequate description up to the pressure amplitude of about 3% to the equilibrium pressure.
Collapse
Affiliation(s)
- N Sugimoto
- Department of Mechanical Science, Graduate School of Engineering Science, University of Osaka, Toyonaka, Osaka 560-8531, Japan
| | | | | |
Collapse
|
32
|
Uchino Y, Fukushige T, Yotsumoto S, Hashiguchi T, Taguchi H, Suzuki N, Konohana I, Kanzaki T. Morphological and biochemical studies of human beta-mannosidosis: identification of a novel beta-mannosidase gene mutation. Br J Dermatol 2003; 149:23-9. [PMID: 12890191 DOI: 10.1046/j.1365-2133.2003.05365.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [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: 11/20/2022]
Abstract
BACKGROUND There are seven well-known lysosomal storage diseases that produce angiokeratoma corporis diffusum clinically. beta-Mannosidosis (MANB1; OMIM248510), first reported in humans in 1986, is a rare hereditary lysosomal storage disease caused by a deficiency of the enzyme beta-mannosidase. Since then, 13 cases of beta-mannosidase deficiency in ten families have been described. A human beta-mannosidase mutation has been reported only by Alkhayat et al. in 1998. OBJECTIVES To clarify its pathogenesis we did electron microscopic, biochemical and molecular biological investigations of a Japanese patient with beta-mannosidosis. METHODS Ultrastructural analyses, enzyme assays, cell culture and mRNA and genomic DNA were sequenced to find mutations in the beta-mannosidase gene. RESULTS Electron microscopy of skin biopsy specimens from the patient showed cytoplasmic vacuolation of lysosomes in blood and lymph vessels, endothelial cells, fibroblasts, secretory portions of eccrine sweat glands, neural cells and basal keratinocytes in the epidermis. This vacuolation was also observed in cultured keratinocytes and fibroblasts. Assays of seven enzyme activities in plasma and cultured skin fibroblasts showed a marked decrease of beta-mannosidase activity. Sequencing the beta-mannosidase cDNA revealed a four-base (ATAA) insertion between exons 7 and 8, resulting in a frameshift at codon 321 and termination at codon 325. Analysis of the patient's genomic DNA revealed a novel homozygous A(+1)-->G splice site mutation in intron 7. CONCLUSIONS To our knowledge, this is the first case of beta-mannosidosis reported in Japan and the second report in which a gene mutation is identified. The biological importance of beta-mannose moieties in glycoproteins in basal keratinocytes is suggested.
Collapse
Affiliation(s)
- Y Uchino
- Department of Dermatology, Kagoshima University Faculty of Medicine, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
| | | | | | | | | | | | | | | |
Collapse
|
33
|
Yotsumoto S, Hashiguchi T, Chen X, Ohtake N, Tomitaka A, Akamatsu H, Matsunaga K, Shiraishi S, Miura H, Adachi J, Kanzaki T. Novel mutations in GJB2 encoding connexin-26 in Japanese patients with keratitis-ichthyosis-deafness syndrome. Br J Dermatol 2003; 148:649-53. [PMID: 12752120 DOI: 10.1046/j.1365-2133.2003.05245.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Germline missense mutations in the GJB2 gene that encodes connexin-26 (Cx26) have recently been found to be the cause of the keratitis-ichthyosis-deafness (KID) syndrome. OBJECTIVES To define the GJB2 mutations in three Japanese patients with KID syndrome. METHODS Genomic DNA was extracted from peripheral blood and used to amplify the GJB2 gene. Direct sequencing and endonuclease digestion were used for mutation analysis and DNA-based diagnosis. RESULTS We identified two heterozygous mis-sense mutations (D50Y, D50N) in the GJB2 gene in three Japanese patients with KID syndrome. All mutations were located on the first extracellular domain of Cx26. CONCLUSIONS These data expand the GJB2 mutation database and show that a dominant mutation of Cx26 can cause KID syndrome in Japanese patients.
Collapse
Affiliation(s)
- S Yotsumoto
- Department of Dermatology, Kagoshima University Faculty of Medicine, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Taguchi T, Kawai S, Hashiguchi T. Reassessment of the diagnostic value of selective lumbosacral radiculography. J Neuroradiol 2002; 29:122-7. [PMID: 12297734] [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: 04/19/2023]
Abstract
In nerve root infiltration (NRI) consisting of neural blockage and radiculography, response to the nerve root block has usually been thought to be diagnostically significant. However radiculography has not been statistically evaluated. The purpose of this paper is to assess the value of selective radiculography of patients with group 1 response (typical pain reproduced by needle placement and then relieved by nerve root block) according to Dooley's criteria. We studied selective radiculography in a consecutive series of 88 patients with lumbo-sacral radicular pain who showed group 1 response in NRI. The accuracy of the preoperative nerve root block and radiculography in 88 nerve roots (L5,S1) were correlated with the intraoperative findings. Selective radiculograms were classified into three groups; normal (absence of block), partial block, and complete block. The tilting angle of all nerve roots was measured. We found the symptomatic root at the same level of the nerve root block in all 88 patients. Selective radiculograms showed five normal roots, 15 roots with incomplete block and 63 roots with complete block. Fifteen radiculograms had abnormal tilting angles. The accuracy of radiculography was 84% in the canal zone and 100% in the intra and extraforaminal zones. If the L5 nerve root angle was more than 60(o), an intra or extraforaminal lesion was strongly suggested (P<0.01). Radiculography of patients with group 1 response is useful for detecting compressed sites in the symptomatic nerve root, particularly for detecting lesions in the intra and extraforaminal zones.
Collapse
Affiliation(s)
- T Taguchi
- Department of Orthopedic Surgery, Yamaguchi University School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | | | | |
Collapse
|
35
|
Arimura K, Osame M, Hashiguchi T. [Vascular endothelial growth factor and Crow-Fukase syndrome]. Rinsho Shinkeigaku 2001; 41:1144-6. [PMID: 12235821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Serum vascular endothelial growth factor (VEGF) is highly elevated in patients with Crow-Fukase syndrome (CFS) and is well correlated with the clinical manifestations of CFS. In circulating blood, VEGF is specifically stored in platelets and released during platelet aggregation. To clarify the role of VEGF in the pathomechanism of CFS, we transplanted VEGF secretion tumors in nude mice and studied the pathological findings in these mice. Prominent edema with elevated serum VEGF were found. Organomegaly was also found in liver, spleen and kidney. Pathological findings in these organs were similar to those found in autopsies of CFS patients. In peripheral nerve, mild intraneural edema was seen, however, neuropathy was not prominent. These findings suggest that elevated VEGF may be closely correlated with generalized edema (anasarca). However, it is also important to consider factors such as cytokines and other T cell functions that, in association with VEGF, may be the cause of neuropathy in CFS.
Collapse
Affiliation(s)
- K Arimura
- Third Department of Intrenal Medicine, Kagoshima University
| | | | | |
Collapse
|
36
|
Abstract
OBJECTIVE Vascular endothelial growth factor (VEGF), a cytokine associated with malignant neoplasms, is increased in a number of inflammatory and infectious disorders. But little is known about VEGF in pulmonary aspergilloma (PA). In order to clarify the predictive value of VEGF in PA, we examined serum VEGF levels in PA patients as well as expression of VEGF in the PA lesion. Patients Twenty-one patients with PA (6 with hemoptysis and the rest without hemoptysis) were investigated. METHODS In all patients, serum VEGF levels were measured by enzyme-linked immunosorbent assay. We examined the statistical correlations of serum VEGF levels with the ratio of affected area to total lung volume and VEGF with PaO2 levels. In patients with hemoptysis, we measured the serum VEGF levels three months after the initiation of therapy. We examined the expression of VEGF in the resected lung tissue of 4 patients with PA using immunohistochemistry. RESULTS Serum VEGF levels showed a significant positive correlation with the ratio of affected to total lung area and a significant negative correlation with PaO2 levels. Serum VEGF levels in patients with hemoptysis were significantly higher than in those without hemoptysis. The serum levels of VEGF in patients with hemoptysis decreased significantly in parallel with the alleviation of hemoptysis. Immunohistochemical staining demonstrated the expression of VEGF in alveolar macrophages in the lesion of PA patients. CONCLUSION We suggest that VEGF can be used as a serum marker to determine the extent of the lesion, hypoxia and hemoptysis in PA.
Collapse
Affiliation(s)
- K Inoue
- Third Department of Internal Medicine, Kagoshima University
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Sugimoto N, Masuda M, Hashiguchi T, Doi T. Annihilation of shocks in forced oscillations of an air column in a closed tube. J Acoust Soc Am 2001; 110:2263-2266. [PMID: 11757914 DOI: 10.1121/1.1407265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
38
|
Higuchi I, Shiraishi T, Hashiguchi T, Suehara M, Niiyama T, Nakagawa M, Arimura K, Maruyama I, Osame M. Frameshift mutation in the collagen VI gene causes Ullrich's disease. Ann Neurol 2001; 50:261-5. [PMID: 11506412 DOI: 10.1002/ana.1120] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Patients with Ullrich's disease have generalized muscle weakness, multiple contractures of the proximal joints, and hyperextensibility of the distal joints. Recently, we found a deficiency of collagen VI protein in two patients with Ullrich's disease. In this study, we detected a homozygous 26 bp deletion in exon 14 of the collagen VI alpha 2 gene (COL6A2) in one patient. This mutation causes a frameshift and a premature termination codon, and results in a truncated collagen VI alpha 2 chain. Our data suggest that at least some cases of Ullrich's disease result from recessive mutations in COL6A2.
Collapse
Affiliation(s)
- I Higuchi
- Third Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Kodama S, Fukuzako H, Fukuzako T, Kiura T, Nozoe S, Hashiguchi T, Yamada K, Takenouchi K, Takigawa M, Nakabeppu Y, Nakajo M. Aberrant brain activation following motor skill learning in schizophrenic patients as shown by functional magnetic resonance imaging. Psychol Med 2001; 31:1079-1088. [PMID: 11513375 DOI: 10.1017/s0033291701004196] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Motor skill learning may be impaired in schizophrenia. While functional brain imaging studies have shown reduced activation during motor task performance in schizophrenic patients, brain activity changes with motor skill learning in these patients have not been studied by functional imaging. METHODS A sequential complex motor task involving the right hand was performed by nine medicated schizophrenic patients and 10 age-matched healthy controls. Functional magnetic resonance images were obtained using a gradient echo, echoplanar imaging (EPI) pulse sequence before and after 1 week of training in performing the task. RESULTS Bilaterally, patients showed significantly less blood oxygenation level-dependent (BOLD) signal response in the premotor area (PMA) before beginning motor training than controls. BOLD signal response increased in the left PMA of schizophrenic patients after 1 week of motor training; in contrast, the signal decreased in the left PMA of control subjects. Training effects concerning the number of finger movement sequences achieved did not differ between groups. Daily neuroleptic dose did not significantly affect changes with training in BOLD signal response in the PMA. CONCLUSIONS These preliminary results suggest that schizophrenic patients have dysfunction of neural networks in areas including the PMA that are involved in executing a complex motor task. In terms of brain activity, motor learning may be less efficient or slower in the patients than in healthy subjects.
Collapse
Affiliation(s)
- S Kodama
- Department of Neuropsychiatry and Radiology, Faculty of Medicine, Kagoshima University, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Wang Y, Liu Y, Ito Y, Hashiguchi T, Kitajima I, Yamakuchi M, Shimizu H, Matsuo S, Imaizumi H, Maruyama I. Simultaneous measurement of anandamide and 2-arachidonoylglycerol by polymyxin B-selective adsorption and subsequent high-performance liquid chromatography analysis: increase in endogenous cannabinoids in the sera of patients with endotoxic shock. Anal Biochem 2001; 294:73-82. [PMID: 11412008 DOI: 10.1006/abio.2001.5015] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.7] [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: 11/22/2022]
Abstract
Anandamide (ANA) and 2-arachidonoylglycerol (2-AG), two endogenous cannabinoids, can be generated by activated macrophages and platelets, respectively, in the context of endotoxic shock, and are proposed to play a crucial role in the induction of the shock-related hypotension. Taking advantage of our recently discovered function of polymyxin B (PMB) binding to ANA and 2-AG, we developed a new method for measuring ANA and 2-AG by applying PMB-immobilized beads to selectively adsorb them in biological fluids, instead of organic solvent extraction. The eluate from beads can be directly fractionated by reverse-phase high-performance liquid chromatography (HPLC), and the fractionations corresponding to authentic ANA and 2-AG are collected and derivatized with fluorogenic reagent and subsequently quantified by HPLC with fluorometric detection. The calibration graphs of ANA and 2-AG were linear over a range of 1 to 500 pmol/ml. The limits of detection for ANA and 2-AG were 20 and 50 fmol, respectively. Intraassay precision was 2.24-4.25 and 3.47-5.44%, and interassay was 4.05-6.14 and 4.92-7.28% for ANA and 2-AG, respectively. Using this method, we first determined a 4-fold and 3-fold higher level of ANA and 2-AG, respectively, in the sera of patients with endotoxic shock than in normal serum. This finding should help in elucidating the role of the endogenous cannabinoids in the hypotension of human endotoxic shock. This method is rapid, sensitive, and reliable for simultaneously quantifying ANA and 2-AG in biological fluids, and has potential for clinical usage.
Collapse
Affiliation(s)
- Y Wang
- Department of Laboratory and Molecular Medicine, Kagoshima University School of Medicine, Kagoshima, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Hashiguchi T, Arimura K, Osame M. [Crow-Fukase (POEMS) syndrome]. Ryoikibetsu Shokogun Shirizu 2001:595-8. [PMID: 11212815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- T Hashiguchi
- Third Department of Internal Medicine, Kagoshima University School of Medicine
| | | | | |
Collapse
|
42
|
Uchimura T, Nakano K, Hashiguchi T, Iwamoto H, Miura K, Yoshimura Y, Hanyu N, Hirata K, Imakuma M, Motomiya Y, Maruyama I. Elevation of N-(carboxymethyl)valine residue in hemoglobin of diabetic patients. Its role in the development of diabetic nephropathy. Diabetes Care 2001; 24:891-6. [PMID: 11347750 DOI: 10.2337/diacare.24.5.891] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Advanced glycation end products (AGEs) are a risk factor for diabetic complications. We have developed an assay method for N-(carboxymethyl)valine (CMV) of the hemoglobin (CMV-Hb), which is an AGE generated from HbA1c. Herein we describe the clinical utility of CMV-Hb measurement for the diagnosis of diabetic nephropathy RESEARCH DESIGN AND METHODS BALB/c mice were immunized with carboxy-methylated Hb and monoclonal antibody raised against CMV-Hb. This antibody was characterized by a surface plasmon resonance. We developed a latex immunoassay using the antibody and measured CMV-Hb from erythrocytes in type 2 diabetic patients and healthy control subjects (age 64.6 +/- 12.0 vs. 61.1 +/- 13.2 years, NS: HbA1c 69 +/- 1.5 vs. 5.2 +/- 0.4%, P < 0.0001). RESULTS A monoclonal antibody against CMV-Hb beta-chain NH2-terminal and an assay method for measurement for CNMV-Hb were both developed in our laboratory. CMV-Hb levels were significantly greater in the diabetic patients than in the control subjects (18.2 +/- 6.9 vs. 12.7 +/- 0.9 pmol CMV/mg Hb, P < 0.0001). No correlation was found between CMV-Hb and HbA1c or CMV-Hb and glycated albumin. Levels of CMV-Hb increased as the diabetic nephropathy progressed. CONCLUSIONS We established an assay method for CMV-Hb and confirmed the presence of CMV-Hb in circulating erythrocytes. CMV-Hb was more prevalent in diabetic patients than in healthy subjects. Furthermore, it was significantly higher in patients with diabetic nephropathy, suggesting that the presence of CMV-Hb may be a valuable marker for the progression of diabetic nephropathy.
Collapse
Affiliation(s)
- T Uchimura
- Department of Laboratory and Molecular Medicine, Kagoshima University School of Medicine, Kagoshima City, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Matsuyama W, Hashiguchi T, Umehara F, Matsuura E, Kawabata M, Arimura K, Maruyama I, Osame M. Expression of vascular endothelial growth factor in tuberculous meningitis. J Neurol Sci 2001; 186:75-9. [PMID: 11412875 DOI: 10.1016/s0022-510x(01)00515-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [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: 11/24/2022]
Abstract
The pathogenesis of tuberculous meningitis is still unclear. Recently, vascular endothelial growth factor (VEGF) was found to be associated with inflammatory diseases and we found the increased serum level of VEGF in pulmonary tuberculosis. We hypothesized that VEGF might be associated with the pathogenesis of tuberculous meningitis and measured serum and cerebrospinal fluid (CSF) levels of VEGF in 28 patients with tuberculous meningitis and 31 non-tuberculous infectious meningitis patients (13 bacterial meningitis patients, eight fungal meningitis patients and 10 patients with viral meningitis) before therapy. We examined the CSF VEGF levels 3 months after in 12 tuberculous meningitis patients. The serum and CSF levels of VEGF were significantly higher in tuberculous meningitis than in other meningitis. The decrease in titer of CSF VEGF paralleled the clinical improvement of tuberculous meningitis. Immunohistochemical staining of autopsied brains demonstrated the presence of VEGF in the inflammatory mononuclear cells of the dense fibroconnective tissue both in the subarachnoid space and surrounding the vasculitis lesion. We found the expression of VEGF in tuberculous meningitis and think that VEGF reflects its activity.
Collapse
Affiliation(s)
- W Matsuyama
- Third Department of Internal Medicine, Kagoshima University School of Medicine, Sakuragaoka 8-35-1, Kagoshima 890-8520, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
44
|
Michizono K, Umehara F, Hashiguchi T, Arimura K, Matsuura E, Watanabe O, Fujimoto N, Okada Y, Osame M. Circulating levels of MMP-1, -2, -3, -9, and TIMP-1 are increased in POEMS syndrome. Neurology 2001; 56:807-10. [PMID: 11274326 DOI: 10.1212/wnl.56.6.807] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 11/15/2022] Open
Abstract
The authors quantitatively measured levels of matrix metalloproteinases (MMP), tissue inhibitor of metalloproteinases (TIMP), and vascular endothelial growth factor (VEGF) in blood samples of POEMS syndrome. Circulating levels of MMP-1, -2, -3, -9, and TIMP-1 were more increased in patients with POEMS syndrome than in patients with other neurologic disorders or in healthy controls. Serum levels of VEGF and TIMP-1 were strongly correlated with each other. Increased circulating levels of MMP-1, -2, -3, -9, and TIMP-1 may lead to a better understanding the pathogenesis of POEMS syndrome.
Collapse
Affiliation(s)
- K Michizono
- Third Department of Internal Medicine, Kagoshima University School of Medicine, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Niimi H, Arimura K, Jonosono M, Hashiguchi T, Kawabata M, Osame M, Kitajima I. VEGF is causative for pulmonary hypertension in a patient with Crow-Fukase (POEMS) syndrome. Intern Med 2000; 39:1101-4. [PMID: 11197800 DOI: 10.2169/internalmedicine.39.1101] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report a case of Crow-Fukase (POEMS) syndrome associated with pulmonary hypertension (PH). In this case, the concentration of vascular endothelial growth factor (VEGF) was extremely high in the serum, and the levels of IL-1beta, IL-6, TNF-alpha, and thiamine, which were thought in past reports to be mediators of PH in Crow-Fukase syndrome, were normal. After prednisolone therapy, PH disappeared with a dramatic decrease in serum VEGF. Our results suggest that VEGF is closely correlated with PH in Crow-Fukase syndrome.
Collapse
Affiliation(s)
- H Niimi
- Third Department of Internal Medicine, Kagoshima University
| | | | | | | | | | | | | |
Collapse
|
46
|
Abstract
We describe three cases of polyarteritis nodosa cutanea (PNC) showing necrotizing arteritis and only cutaneous lesions without systemic symptoms or visceral involvement for eleven, six, and three years after the onset of the disease. Since it was first described, there has been continuous controversy as to whether PNC progresses to systemic PN. Some cases have been described which had begun with a cutaneous lesion and progressed to the systemic form 19 and 18 years after the onset of the disease, so we believe that long term follow-up of this disease is essential.
Collapse
Affiliation(s)
- A Gushi
- Department of Dermatology, Kagoshima University, Faculty of Medicine, Sakuragaoka 8-35-1 Kagoshima, 890-8520 Japan
| | | | | | | | | | | |
Collapse
|
47
|
Matsuyama W, Hashiguchi T, Mizoguchi A, Iwami F, Kawabata M, Arimura K, Osame M. Serum levels of vascular endothelial growth factor dependent on the stage progression of lung cancer. Chest 2000; 118:948-51. [PMID: 11035661 DOI: 10.1378/chest.118.4.948] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
STUDY OBJECTIVE In lung cancer, vascular endothelial growth factor (VEGF) is an important cytokine and is correlated with tumor vessel density, malignant pleural effusions, and coagulation-fibrinolysis factors in vitro. We investigated the correlation between serum VEGF level and stage progression in lung cancer to study the predicted value of VEGF level. We also studied whether coagulation-fibrinolysis factors and PaO(2) levels, which are also important factors for the prediction of the clinical course, are correlated with VEGF. METHODS Forty-nine patients with lung cancer were investigated prospectively. VEGF levels of sera and malignant effusions, and plasma concentrations of coagulation-fibrinolysis factors were measured by enzyme-linked immunosorbent assay. We measured PaO(2) levels in all patients at rest. RESULTS Serum levels of VEGF were increased significantly according to stage progression. Additionally, plasma concentrations of D dimer, thrombin-antithrombin complex (TAT), and tissue plasminogen activator/plasminogen activator inhibitor type I complex were elevated significantly according to stage progression. The serum VEGF level had a significant positive correlation with the TAT and D dimer levels. Serum VEGF levels had a significant negative correlation with PaO(2) levels. The incidence of cerebral vascular disorder was significantly higher in the patients with systemic hypoxemia than in those without (p<0.05). Mean VEGF levels in malignant effusions in eight patients (five with pleural effusions, two with pericardial effusions, and one with both) were extremely high, especially in pericardial effusions ([mean +/- SD] pleural effusions, 531.9+/-285.4 pg/mL; pericardial effusion, 3,071.6+/-81.3 pg/mL). CONCLUSION We predict that in lung cancer, VEGF production and the abnormality of the coagulation-fibrinolysis system differ depending on the stage of progression of disease. Serum VEGF levels would be affected by PaO(2) levels in lung cancer.
Collapse
Affiliation(s)
- W Matsuyama
- Third Department of Internal Medicine, Kagoshima University School of Medicine, Kagoshima City, Japan
| | | | | | | | | | | | | |
Collapse
|
48
|
Matsuyama W, Hashiguchi T, Matsumuro K, Iwami F, Hirotsu Y, Kawabata M, Arimura K, Osame M. Increased serum level of vascular endothelial growth factor in pulmonary tuberculosis. Am J Respir Crit Care Med 2000; 162:1120-2. [PMID: 10988140 DOI: 10.1164/ajrccm.162.3.9911010] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Pulmonary tuberculosis, one of the granulomatous diseases, has few serological markers for its activity. Recently, an increased serum level of vascular endothelial growth factor (VEGF) was detected in patients with Crohn's disease, also a granulomatous disease. We hypothesized that VEGF might be associated with the pathogenesis of pulmonary tuberculosis. We investigated the serum level of VEGF in 43 patients with active pulmonary tuberculosis, 29 patients with old tuberculosis, and 25 patients with acute bronchitis. We were able to examine the serum VEGF levels every 3 mo for a period of 6 mo in seven patients with active pulmonary tuberculosis. We examined the presence of VEGF in the resected lungs of three patients with active pulmonary tuberculosis by immunohistochemistry. The serum levels of VEGF were significantly higher in patients with active pulmonary tuberculosis than in patients with old tuberculosis and acute bronchitis. The decrease in titer of serum VEGF paralleled the clinical improvement of patients with pulmonary tuberculosis. Immunohistochemical staining of the resected lungs demonstrated the presence of VEGF in alveolar macrophages surrounding the lesion. Therefore, VEGF may be associated with the pathogenesis of pulmonary tuberculosis.
Collapse
Affiliation(s)
- W Matsuyama
- The Third Department of Internal Medicine, Kagoshima University School of Medicine, Kagoshima City, Japan; The Department of Respiratory Medicine, and The Department of Thoracic Surgery, National Minami-kyushu Hospital, Aira-gun, Kag
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Hashiguchi T, Arimura K, Matsumuro K, Otsuka R, Watanabe O, Jonosono M, Maruyama Y, Maruyama I, Osame M. Highly concentrated vascular endothelial growth factor in platelets in Crow-Fukase syndrome. Muscle Nerve 2000; 23:1051-6. [PMID: 10882999 DOI: 10.1002/1097-4598(200007)23:7<1051::aid-mus7>3.0.co;2-v] [Citation(s) in RCA: 107] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report a marked difference in concentration of vascular endothelial growth factor (VEGF) between serum and plasma in patients with Crow-Fukase syndrome (CFS). The serum/plasma VEGF levels in 4 CFS patients were 8,634/152, 5,203/176, 3,724/127, and 868/13 pg/ml, respectively. We also showed that platelets were a major source of this VEGF and that VEGF was released during platelet aggregation by physiological stimulation. It is suggested that in CFS, local VEGF concentration is markedly elevated by aggregation of platelets containing excessive VEGF and their adhesion to vascular walls, resulting in excessive physiological activities of VEGF. Our findings provide important information for developing more effective therapeutic trials.
Collapse
Affiliation(s)
- T Hashiguchi
- Third Department of Internal Medicine, Kagoshima University, School of Medicine, 8-35-1 Sakuragaoka, Kagoshima, 890-8520 Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Matsuura E, Umehara F, Hashiguchi T, Fujimoto N, Okada Y, Osame M. Marked increase of matrix metalloproteinase 9 in cerebrospinal fluid of patients with fungal or tuberculous meningoencephalitis. J Neurol Sci 2000; 173:45-52. [PMID: 10675579 DOI: 10.1016/s0022-510x(99)00303-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Matrix metalloproteinases (MMPs) are believed to play an essential role in the breakdown of the extracellular matrix macromolecules in the blood-cerebrospinal fluid barrier and blood-brain barrier (BBB). In this study, the levels of MMP-2 and MMP-9 and their common tissue inhibitors of metalloproteinases (TIMP-1 and TIMP-2) were measured in the cerebrospinal fluid (CSF) from patients with various meningitides including aseptic, fungal and tuberculous ones. MMP-9 production level in CSF was more increased in subacute meningitis including fungal and tuberculous meningitis than in acute aseptic meningitis and non-inflammatory neurological diseases (NIDs). Enhanced production of MMP-9 was associated with high proteolytic activity detected by gelatin zymography. The MMP-2 and TIMP-1 levels in CSF of subacute meningitis were also higher than those of NIDs. In contrast, the TIMP-2 levels in CSF of either acute aseptic or subacute meningitis were not up-regulated compared with those of NIDs. The central nervous system (CNS) complications (i.e. disturbance of consciousness, psychiatric symptoms, urinary disturbance, etc.) during the course of meningitis showed good correlation with the enhanced production of MMP-9 in CSF. Immunohistochemical studies in tuberculous meningitis demonstrated that the infiltrating mononuclear cells in the meninges were immunoreactive for both MMP-2 and MMP-9. However, the infiltrating mononuclear cells into CNS parenchyma had immunoreactivity for MMP-9, but not for MMP-2. Taken together, those data suggest that MMP-9 in CSF may be a useful marker of encephalitogenecity during the course of subacute meningitis.
Collapse
Affiliation(s)
- E Matsuura
- The Third Department of Internal Medicine, Kagoshima University School of Medicine, 8-35-1, Sakuragaoka, Kagoshima City, Kagoshima, Japan.
| | | | | | | | | | | |
Collapse
|