Akira Ishikawa

ORCID: 0000-0001-7104-1342
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Exercise and Physiological Responses
  • Muscle metabolism and nutrition
  • Sports Performance and Training
  • Tea Polyphenols and Effects
  • PAPR reduction in OFDM
  • Physical Activity and Health
  • Hormonal and reproductive studies
  • Advanced MIMO Systems Optimization
  • Erythropoietin and Anemia Treatment
  • Medical Imaging and Pathology Studies
  • Medical and Biological Sciences
  • Advances in Oncology and Radiotherapy
  • Food Allergy and Anaphylaxis Research
  • Ion Transport and Channel Regulation
  • Biochemical effects in animals
  • Telecommunications and Broadcasting Technologies
  • Intestinal Malrotation and Obstruction Disorders
  • Error Correcting Code Techniques
  • Pharmacology and Obesity Treatment
  • Iron Metabolism and Disorders
  • Hormonal Regulation and Hypertension
  • Digestive system and related health
  • Complement system in diseases
  • Microbial Metabolites in Food Biotechnology
  • Sodium Intake and Health

Hiroshima University
2022-2025

Nippon Sport Science University
2020-2024

University of Electro-Communications
2022

The University of Tokyo
2011

Hypertension is a leading contributor to cardiovascular mortality worldwide. Despite this, its underlying mechanism(s) and the role of excess salt in cardiorenal dysfunction are unclear. Previously, we have identified cross-talk between mineralocorticoid receptor (MR), nuclear transcription factor regulated by steroid aldosterone, small GTPase Rac1, which implicated proteinuric kidney disease. We here show that high-salt loading activates Rac1 kidneys rodent models salt-sensitive...

10.1172/jci43124 article EN Journal of Clinical Investigation 2011-07-18

A 77-year-old man underwent a colonoscopy. submucosal cecal tumor was found, and localized colorectal MALT lymphoma (Lugano stage I) diagnosed with Helicobacter pylori infection. The first-line eradication therapy successful, the lesion regressed. However, new observed in lower rectum. rectal regressed after second-line therapy. Two lesions were identified sigmoid colon. no additional treatment administered watch-and-wait strategy adopted. Both of There are established treatments for...

10.2169/internalmedicine.4907-24 article EN Internal Medicine 2025-01-01

Although ample evidence supports the notion that an acute bout of endurance exercise performed at or greater than 70% maximum oxygen uptake suppresses appetite partly through changes in appetite-regulating hormones, no study has directly compared influence between phases menstrual cycle women. This effects on orexigenic hormone (acylated ghrelin) and anorexigenic hormones (peptide YY cholecystokinin) early follicular phase (FP) mid luteal (LP) physically active Ten healthy women (age, 20.6 ±...

10.1152/japplphysiol.01117.2020 article EN Journal of Applied Physiology 2021-12-09

The present study investigated the effects of menstrual cycle on muscle glycogen and circulating substrates during high-intensity intermittent exercise until exhaustion in healthy women who habitually exercised. In total, 11 with regular cycles completed three tests, which comprised early follicular phase (E-FP), late (L-FP), luteal (LP) cycle. High-intensity was performed each test day. Evaluation concentration by 13 C-magnetic resonance spectroscopy measurement estradiol, progesterone,...

10.1139/apnm-2021-0532 article EN Applied Physiology Nutrition and Metabolism 2022-06-01

BACKGROUND: This study aimed to investigate the effects of menstrual cycle on oxidative stress and antioxidant response during high-intensity intermittent exercise until exhaustion in healthy women who habitually exercised.METHODS: Ten with normal completed 2 phases, including early follicular phase (FP) midluteal (LP). High-intensity was performed each test day. Blood samples were collected before (Pre), immediately after (Post0), 60 minutes (Post60). The levels estradiol; progesterone;...

10.23736/s0022-4707.20.10868-5 article EN The Journal of Sports Medicine and Physical Fitness 2020-11-01

We investigated the influence of menstrual cycle (MC) on leukocyte response after exercise-induced muscle damage (EIMD). During early follicular (E-FP, n = 12) or mid-luteal phase (M-LP, 12), 24 untrained females with eumenorrhea performed 60 eccentric exercises using nondominant arms. Blood samples were collected at pre- and 4, 48, 96 h postexercise to analyze estradiol progesterone concentrations, count fractionation, creatine kinase (CK) activity. also assessed maximal voluntary isometric...

10.3390/ijerph19159201 article EN International Journal of Environmental Research and Public Health 2022-07-27

Matsuda, T, Takahashi, H, Nakamura, M, Ogata, Kanno, Ishikawa, A, and Sakamaki-Sunaga, M. Influence of the menstrual cycle on muscle glycogen repletion after exhaustive exercise in eumenorrheic women. J Strength Cond Res 37(4): e273-e279, 2023-The purpose this study was to investigate effect postexercise. Eleven women with regular cycles (age: 20.2 ± 1.3 years, height: 161.1 4.8 cm, body mass: 55.5 5.7 kg) were assessed 3 phases cycle: early follicular phase (E-FP), late (L-FP), luteal (LP)....

10.1519/jsc.0000000000004306 article EN The Journal of Strength and Conditioning Research 2022-07-08

In women, fat oxidation during exercise changes with the menstrual cycle. This study aimed to investigate effect of green tea extract (GTE) ingestion on depending cycle phase. Ten women regular cycles participated in this randomized, double-blind, crossover study. GTE or placebo was administered cycle’s follicular phase (FP) and luteal (LP). Participants cycled for 30 min at 50% maximal workload, a respiratory gas analysis performed. Serum estradiol, progesterone, free fatty acid, plasma...

10.3390/nu14193896 article EN Nutrients 2022-09-21

Testosterone replacement therapy (TRT) in transgender men (TM) results side effects such as elevated triglycerides and increased arterial stiffness. Exercise may be useful to ameliorate effects, but no studies have examined the of acute aerobic exercise TM. This study aimed investigate on stiffness Thirty-six participants were included, comprising 12 TM (duration TRT: 57.4 ± 30.3 months), males females. All performed a treadmill at 50% heart rate reserve for 30 min. Arterial measured by...

10.3389/fphys.2023.1294284 article EN cc-by Frontiers in Physiology 2023-10-31

Aims] The life expectancy in Japan is the highest world, and health promotion characteristics of Japanese-style diet one reasons to explain high average expectancy.To date, no reports have elucidated metabolic effects on skeletal muscle, an important organ that regulates systemic metabolism.We hypothesized traditional commonly ate 1975 could improve muscle metabolism lipid profile compared with Western-style diet.[Methods] We evaluated signaling molecules responsible for regulating...

10.7600/jpfsm.7.386 article EN The Journal of Physical Fitness and Sports Medicine 2018-11-25

PURPOSE: Many transgender men are treated with hormone replacement therapy (HRT). However, known side effects include decreased high-density lipoprotein cholesterol (HDL-C) and elevated triglyceride (TG) levels. Moreover, there is an increased risk of developing cardiovascular disease, which may be reduced by aerobic exercise. In this study, we analyzed the acute exercise on lipid profiles in men. Further, compared women based resting profiles. METHODS: Thirty participants, including 10...

10.1249/01.mss.0000881300.61304.61 article EN Medicine & Science in Sports & Exercise 2022-09-01

PURPOSE: Transgender men (TM) are individuals whose gender identity is men, but their assigned sex at birth women. Testosterone replacement therapy (TRT) worsens blood lipid profiles in TM. However, general, acute aerobic exercise improves profiles. Furthermore, sex-specific differences energy metabolism exist during exercise. Thus, profile TM may change metabolism, this remains unclear. Therefore, study compared the effects of on profile, carbohydrate oxidation (COX), and fat (FOX) TM,...

10.1249/01.mss.0000981148.45074.d5 article EN Medicine & Science in Sports & Exercise 2023-09-01
Jörg Braun K. Dalhoff Bernhard Schaaf Dinakantha Kumararatne Thomas Hausen and 95 more Mark L Levy Anders Østrem Thys van der Molen Fengshi Chen Tetsu Yamada Akihiro Aoyama Noritaka Isowa Koji Chihara Masanori Yasuo Keisaku Fujimoto Tsuyoshi Tanabe Hironobu Yaegashi Kenji Tsushima Keiichirou Takasuna Robert J. Nordyke Takeshi Koike Mutsuo Yamaya Toshio Nikaido Argyro Voloudaki Juan P. de‐Torres Arantza Campo Ciro Casanova Armando Aguirre-Jaíme Javier J. Zulueta Elpida Vardaki Anastasios Koutsopoulos Ronald J. Halbert Vrettos Haniotis N.E. Vlahakis David Price David G. Tinkelman Ronald J. Halbert Robert J. Nordyke Sharon Isonaka Dmitry Nonikov Elizabeth F. Juniper Diana N. Ionescu Diane M. Pierson Efstathios N. Stathopoulos Ioannis A. Drositis Nikolaos M. Siafakas Anna Ochoa de Echagüen Salvador Quintana Mónica Rodríguez‐Carballeira J.L. Pérez de Heredia Javier Garau Ioanna Mitrouska Konstantina I. Dambaki Gefei Qing Abdullah M. Yonan Daryl Freeman Yossef Aelony Janis F. Yao Randel R. King Kent Parkinson Thomas C. Colby Kevin O. Leslie Sven Philip Aries David G. Tinkelman Kageaki Taima Daniel Droemann Pedro Almagro Bienvenido Barreiro Erich W. Russi P. Zabel F. Hansen David Price Sharon Isonaka Dmitry Nonikov Elizabeth F. Juniper Daryl Freeman Thomas Hausen Mark L Levy Anders Østrem Thys van der Molen Constant P. van Schayck A. Sarassi Piero Viggiani Giovanni Battista Migliori Tadaatsu Imaizumi Lukas Bubendorf Giorgio Besozzi Koji Yamashita Akira Ishikawa Takashi Fujita Hidemi Yoshida Shingo Takanashi Ken Okumura Kei Satoh Prashant N. Chhajed Michael Dickenmann Kristina Liener Jochen Dürr Richard Leiacker Ajnacska Rozsasi

10.1159/000092304 article EN Respiration 2006-01-01
Coming Soon ...