Articles

Oxytocin receptor gene polymorphism (rs53576) and digit ratio associates with aggression: comparison in seven ethnic groups

The specific role of the oxytocin receptor (OXTR) gene polymorphisms in emotional support seeking, related to social norms and culturally normative behavior, has been discussed in several studies. Evidence on the...

Authors: Marina Butovskaya, Victoria Rostovtseva, Polina Butovskaya, Valentina Burkova, Daria Dronova, Vasilisa Filatova, Eugenia Sukhodolskaya, Vasiliy Vasiliev, Tania Mesa, Araceli Rosa and Oleg Lazebny

The east coast districts are the possible epicenter of severe dengue in Sabah

Malaysia recorded the highest number of dengue cases between 2014 and 2017. There are 13 states and three federal territories in Malaysia, and each area varies in their prevalence of dengue. Sabah is one of th...

Authors: Narinderjeet Kaur, Syed Sharizman Syed Abdul Rahim, Joel Judson Jaimin, Jiloris Julian Frederick Dony, Koay Teng Khoon and Kamruddin Ahmed

Association between vegetable consumption and calf venous compliance in healthy young adults

Venous compliance decreases with aging and/or physical inactivity, which is thought to be involved partly in the pathogenesis of cardiovascular disease such as hypertension. This suggests that it is important ...

Authors: Anna Oue, Yasuhiro Iimura, Kotose Maeda and Takahiro Yoshizaki

Effects of beta-conglycinin intake on circulating FGF21 levels and brown adipose tissue activity in Japanese young men: a single intake study and a randomized controlled trial

Human brown adipose tissue (BAT) activity has beneficial effects on body composition and glucose metabolism. A previous study reported that beta-conglycinin intake induced postprandial fibroblast growth factor...

Authors: Hirokazu Taniguchi, Keigo Shimizu, Sayori Wada, Shinsuke Nirengi, Haruki Kataoka and Akane Higashi

Development and validation of an ELISA for a biomarker of thyroid dysfunction, thyroid peroxidase autoantibodies (TPO-Ab), in dried blood spots

The prevalence of allergic and autoimmune conditions has been steadily increasing in wealthy nations over the past century. One hypothesis put forward to explain this is the Old Friends Hypothesis, which posit...

Authors: Geeta N. Eick, Tara J. Cepon-Robins, Maureen J. Devlin, Paul Kowal, Larry S. Sugiyama and J. Josh Snodgrass

Functional dissociation of hippocampal subregions corresponding to memory types and stages

The hippocampus reportedly plays a crucial role in memory. However, examining individual human hippocampal-subfield function remains challenging because of their small sizes and convoluted structures. Here, we...

Authors: Ji-Woo Seok and Chaejoon Cheong

The association between FTO rs9939609 gene polymorphism and anthropometric indices in adults

Fat mass and obesity-associated gene (FTO) is the most studied obesity-related gene up to date. We aimed to assess anthropometric indices in carriers of FTO rs9939609 polymorphism with overweight across Iranian p...

Authors: Mahsa Mehrdad, Majid Fardaei, Mohammad Fararouei and Mohammad Hassan Eftekhari

What is the significance of the traditional pinching mode of holding chopsticks?

The purpose of this study was to clarify the influence of manipulation mode of chopsticks on the learning process, using assessment of task performance and electromyography, and to understand the significance ...

Authors: Yoshihiro Shimomura, Takeaki Ohsawa, Megumi Shimura, Yali Xia, Koichi Iwanaga and Tetsuo Katsuura

Association of abdominal fat with metabolic syndrome components in overweight women: effect of menopausal status

The association between abdominal fat distribution and metabolic syndrome (MetSyn) components by menopausal status has yet to be explicated. The purpose of this study was to examine a cross-sectional associati...

Authors: Shigeharu Numao, Yasutomi Katayama, Yoshio Nakata, Tomoaki Matsuo, Masaki Nakagaichi and Kiyoji Tanaka

Effect of age and sex on strength and spatial electromyography during knee extension

Multichannel surface electromyography (EMG) is a method to examine properties of motor unit (MU) activity using multiple electrodes arranged on a two-dimensional grid. This technique can be used to examine alt...

Authors: Ashirbad Pradhan, Gemma Malagon, Rebecca Lagacy, Victoria Chester and Usha Kuruganti

Adaptive changes in physiological and perceptual responses during 10-day heat acclimation training using a water-perfused suit

While active heat acclimation strategies have been robustly explored, not many studies highlighted passive heat acclimation strategies. Particularly, little evidence demonstrated advantages of utilizing a wate...

Authors: Yelin Ko, Seon-Hong Seol, Juho Kang and Joo-Young Lee

Vitamin K deficiency, evaluated with higher serum ucOC, was correlated with poor bone status in women

An increase in serum undercarboxylated osteocalcin concentrations suggests vitamin K deficiency. Clinical intervention studies suggested that the vitamin K supplementation might contribute to preventing bone l...

Authors: Natsumi Tanaka, Kazuhiko Arima, Takayuki Nishimura, Yoshihito Tomita, Satoshi Mizukami, Takuhiro Okabe, Yasuyo Abe, Shin-ya Kawashiri, Michiko Uchiyama, Yuzo Honda, Ritsu Tsujimoto, Mitsuo Kanagae, Makoto Osaki and Kiyoshi Aoyagi

Ground golf-induced changes in the blood pressure of healthy elderly people

Ground golf is a popular sport among the elderly in Japan. Several types of exercise can reduce the body's mean arterial pressure (MAP), but little is known about how ground golf affects the MAP. We investigat...

Authors: Naoyuki Ebine, Masahiro Itoh, Masahiro Horiuchi, Tatsuya Hojo, Miho Yoshimura and Yoshiyuki Fukuoka

Association of epigenetics of the PDK4 gene in skeletal muscle and peripheral blood with exercise therapy following artificial knee arthroplasty

Although exercise is a standard treatment for postoperative osteoarthritis, interindividual differences have been reported. Epigenetic modification (DNA methylation), a factor causing interindividual differenc...

Authors: Tomohiro Kamo, Satoshi Kurose, Hiroshi Ohno, Minoru Murata, Takanori Saito and Yutaka Kimura

Early age at menarche and its associated factors in school girls (age, 10 to 12 years) in Bangladesh: a cross-section survey in Rajshahi District, Bangladesh

Early onset of menarche is one of the most important factors for breast cancer and other associated health hazards. The aim of this study was to investigate the early age at menarche and its associated factors...

Authors: Jannatul Maowa Malitha, Md. Ariful Islam, Saima Islam, Abu Sayed Md. Al Mamun, Suman Chakrabarty and Md. Golam Hossain

Profile of regional fat and fat-free soft tissue accumulation in male athletes

It is unclear whether or not the breakpoint (BP), at which the proportion of each of fat mass (FM) and fat-free soft tissue mass (FFSTM) to body mass (BM) alter, exists in male athletes. We examined the hypoth...

Authors: Yohei Takai, Miyuki Nakatani, Toru Aoki, Daisuke Komori, Kazuyuki Oyamada, Kensuke Murata, Eiji Fujita, Takuya Akamine, Yoshihisa Urita, Masayoshi Yamamoto and Hiroaki Kanehisa

Differences in pulse rate variability with measurement site

Recently, attempts have been made to use the pulse rate variability (PRV) as a surrogate for heart rate variability (HRV). PRV, however, may be caused by the fluctuations of left ventricular pre-ejection perio...

Authors: Emi Yuda, Kento Yamamoto, Yutaka Yoshida and Junichiro Hayano

Effects of aging on foot pedal responses to visual stimuli

Car accidents due to unexpected forward or backward runaway by older drivers are a serious social problem. Although the cause of these accidents is often attributed to stepping on the accelerator instead of th...

Authors: Emi Yuda, Yutaka Yoshida, Norihiro Ueda, Itaru Kaneko, Yutaka Miura and Junichiro Hayano

Body cooling effects of immersion of the forearms in high-concentration artificial carbonic acid water at 25°C

This study examined the effects of immersion in stirred, high-concentration, artificial carbonic acid water on body cooling.

Authors: Yuuki Tanaka, Hisaho Nagano and Akihiro Taimura

Qualitative and quantitative dermatoglyphics of chronic kidney disease of unknown origin (CKDu) in Sri Lanka

Dermatoglyphics has been used widely in fields of medicine as a non-invasive diagnostic tool and an early assessment of risk for certain medical conditions. It reflects disturbances in fetal development during...

Authors: Buddhika Thilanga Bandara Wijerathne, Robert John Meier, Sujatha Senadeera Salgado and Suneth Buddhika Agampodi

On the simple calculation of walking efficiency without kinematic information for its convenient use

Since walking is a daily activity not to require the maximal effort in healthy populations, a very few universal bio-parameters and/or methods have been defined to evaluate individual walking characteristics i...

Authors: Daijiro Abe, Yoshiyuki Fukuoka and Masahiro Horiuchi

Associations between serum levels of insulin-like growth factor-I and bone mineral acquisition in pubertal children: a 3-year follow-up study in Hamamatsu, Japan

Epidemiological data regarding the association between serum levels of IGF-I and bone mineral acquisition during childhood are scarce. Here, we investigated the association between serum levels of IGF-I and bo...

Authors: Katsuyasu Kouda, Masayuki Iki, Kumiko Ohara, Harunobu Nakamura, Yuki Fujita and Toshimasa Nishiyama

Reliability of Physiological Responses Induced by Basic Emotions: A Pilot Study

Although emotion-specific autonomic responses based on the discrete theory of emotion have been widely studied, studies on the reliability of physiological responses to emotional stimuli are limited. In this s...

Authors: Eun-Hye Jang, Sangwon Byun, Mi-Sook Park and Jin-Hun Sohn

Performance of newly developed body mass index cut-off for diagnosing obesity among Ethiopian adults

Obesity is defined as unhealthy excess body fat, which increases the risk of premature mortality from noncommunicable diseases. Early screening and prevention of obesity is critical for averting associated mor...

Authors: Makeda Sinaga, Tilahun Yemane, Elsah Tegene, David Lidstrom and Tefera Belachew

Estimation of stature from finger and phalange lengths in a Korean adolescent

Authors: Ilsun Rhiu and Wonjoon Kim

Longevity-associated mitochondrial DNA 5178 C/A polymorphism modifies effect of aging on renal function in male Japanese health checkup examinees: an exploratory cross-sectional study

Mitochondrial DNA 5178 (Mt5178) C/A polymorphism is reportedly associated with longevity in the Japanese population. The objective of this study was to investigate whether Mt5178 C/A polymorphism influences th...

Authors: Iichiro Ohtsu, Mamoru Ishikawa, Naomi Matsunaga, Kanae Karita, Masao Yoshida, Hirotaka Ochiai, Takako Shirasawa, Takahiko Yoshimoto, Akira Minoura, Shogo Sai and Akatsuki Kokaze

The effects of toe grip training on physical performance and cognitive function of nursing home residents

Toe grip-related training requires individuals to actively exercise muscles that are not frequently used; therefore, it may improve not only toe grip strength but also cognitive function. The purpose of this s...

Authors: Ryota Tsuyuguchi, Satoshi Kurose, Takayuki Seto, Nana Takao, Aya Fujii, Hiromi Tsutsumi, Shingo Otsuki and Yutaka Kimura

Non-visual effects of diurnal exposure to an artificial skylight, including nocturnal melatonin suppression

Recently, more consideration is being given to the beneficial effects of lighting on the maintenance and promotion of the health and well-being of office occupants in built environments. A new lighting technol...

Authors: Akira Yasukouchi, Takafumi Maeda, Kazuyoshi Hara and Hiroyuki Furuune

An overview of hand postures and aging on morphological changes of the median nerve

High-resolution ultrasound is being widely used in carpal tunnel examination to understand morphological and biomechanical characteristics of the median nerve and surrounding anatomy structures.

Authors: Ping Yeap Loh, Wen Liang Yeoh and Satoshi Muraki

Effect of food intake on respiratory chemosensitivity to CO₂ in young adults

Food intake augments CO₂ production; however, minute ventilation is not augmented during exercise after food intake. Respiratory chemoreceptors respond to CO₂ and influence respiration. We examined the effect of ...

Authors: Keiji Hayashi, Misato Suekuni and Koji Sugiyama

Effects of fat distribution on lung function in young adults

To study the associations between fat distribution and lung functions in healthy subjects of young adults and to explore potential gender difference in these correlations.

Authors: Liqian Huang, Ziliang Ye, Jingjing Lu, Cunqing Kong, Qingqing Zhu, Binbin Huang, Zerong Wang, Lin Xu, Qiongying Deng, Jiangu Gong and Peng Liu

Association of taller stature with lower cardiovascular disease mortality in Asian people: a systematic review

Adult height can serve as a disease marker. While taller stature has been reported to be linked to a decreased risk of cardiovascular disease (CVD), an influence of the height on CVD is not fully understood in...

Authors: Hiroyuki Teraura, Tatsuya Suzuki and Kazuhiko Kotani

ERP study on the associations of peripheral oxytocin and prolactin with inhibitory processes involving emotional distraction

Child maltreatment is a major health and social welfare problem, with serious and longstanding consequences. Impulse control ability plays an important role in reducing the risk of child maltreatment. The aim ...

Authors: Sayuri Hayashi, Ayami Tsuru, Fumi Kishida, Yeon-Kyu Kim, Shigekazu Higuchi and Yuki Motomura

NR3C1 gene polymorphisms are associated with high-altitude pulmonary edema in Han Chinese

High-altitude pulmonary edema (HAPE) is a life-threatening form of non-cardiogenic edema which occurs in unacclimatized individuals after rapid ascent to high altitude. NR3C1 gene encodes for glucocorticoid recep...

Authors: Yingzhong Yang, Hui Du, Yuhong Li, Wei Guan, Feng Tang, Qin Ga and Ri-Li Ge

Pitfalls of assessment of autonomic function by heart rate variability

Although analysis of heart rate variability is widely used for the assessment of autonomic function, its fundamental framework linking low-frequency and high-frequency components of heart rate variability with...

Authors: Junichiro Hayano and Emi Yuda

A review of the studies on nonvisual lighting effects in the field of physiological anthropology

Here, we review the history and the trends in the research on the nonvisual effect of light in the field of physiological anthropology. Research on the nonvisual effect of light in the field of physiological a...

Authors: Tetsuo Katsuura and Soomin Lee

Effects of the differences in mental states on the mirror system activities when observing hand actions

It is known that the activities of the mirror system are related to imitation and understanding of the intention of an action. It has been reported that the activity of the mirror system is higher for observat...

Authors: Yuki Ikeda, Yuki Nishimura and Shigekazu Higuchi

Correction to: Eye movements and brain oscillations to symbolic safety signs with different comprehensibility

After the publication of the original article [1] it was highlighted that there was an omission regarding the online resources for the traffic signs in the section of “Experimental stimuli”.

Authors: Yohana Siswandari and Shuping Xiong

Do green-blocking glasses enhance the nonvisual effects of white polychromatic light?

It is well known that light containing the blue component stimulates the intrinsically photosensitive retinal ganglion cells (ipRGCs) and plays a role in melatonin suppression and pupillary constriction. In ou...

Authors: Soomin Lee, Naoshi Kakitsuba and Tetso Katsuura

Stress, migration, and allostatic load: a model based on Mexican migrants in Columbus, Ohio

Immigration is a disruptive event with multiple implications for health. Stressors, including family separation, acculturation, job insecurity, restricted mobility, sojourns, dangerous border crossings, stigma...

Authors: Alexandra C. Tuggle, Jeffrey H. Cohen and Douglas E. Crews

Evaluation of postural stability based on a force plate and inertial sensor during static balance measurements

Previous research on balance mostly focused on the assessment, training, and improvements of balance through interventions. We investigated tools commonly used to study static balance. Differences in postural ...

Authors: Chia-Hsuan Lee and Tien-Lung Sun

Developing an equation for estimating body height from linear body measurements of Ethiopian adults

Measurements of erect height in older people, hospitalized and bedridden patients, and people with skeletal deformity is difficult. As a result, using body mass index for assessing nutritional status is not va...

Authors: Alemayehu Digssie, Alemayehu Argaw and Tefera Belachew

Impact of season on the association between muscle strength/volume and physical activity among community-dwelling elderly people living in snowy-cold regions

Although the benefits of physical activity are well-known, levels of physical inactivity are increasing in many countries. Physical activity, particularly for preventive care of the elderly, must be encouraged...

Authors: Junko Hasegawa, Hideki Suzuki and Taro Yamauchi

The relationship between inhibition of automatic imitation and personal cognitive styles

Previous studies have demonstrated the importance of the inhibition of automatic imitation in social interactions. Additionally, cognitive traits are known to vary among individuals. According to the empathizi...

Authors: Yuki Nishimura, Yuki Ikeda and Shigekazu Higuchi

Suppression of salivary melatonin secretion under 100-Hz flickering and non-flickering blue light

Bright light at night is known to suppress melatonin secretion. Novel photoreceptors named intrinsically photosensitive retinal ganglion cells (ipRGCs) are mainly responsible for projecting dark/bright informa...

Authors: Tomoaki Kozaki, Yuki Hidaka, Jun-ya Takakura and Yosuke Kusano

Characteristics of cardiovascular responses to an orthostatic challenge in trained spinal cord-injured individuals

We investigated cardiovascular responses to an orthostatic challenge in trained spinal cord-injured (SCI) individuals compared to able-bodied (AB) individuals.

Authors: Masahiro Itoh, Masako Yamaoka Endo, Tatsuya Hojo, Miho Yoshimura and Yoshiyuki Fukuoka

Correction to: Effect of simultaneous exposure to extremely short pulses of blue and green light on human pupillary constriction

Following publication of the original article [1], the authors reported that the abstract was missing from this article.

Authors: Soomin Lee, Shougo Ishibashi, Yoshihiro Shimomura and Tetsuo Katsuura

Current health status and its risk factors of the Tsarang villagers living at high altitude in the Mustang district of Nepal

Epidemiology of noncommunicable diseases (NCDs) such as obesity and diabetes mellitus (DM) are influenced by multiple hosts and environmental factors. This study aims to investigate the prevalence of NCDs and ...

Authors: Sweta Koirala, Masayuki Nakano, Hiroaki Arima, Shouhei Takeuchi, Tomo Ichikawa, Takayuki Nishimura, Hiromu Ito, Basu Dev Pandey, Kishor Pandey, Takayuki Wada and Taro Yamamoto

Concordance between appendicular skeletal muscle mass measured with DXA and estimated with mathematical models in middle-aged women

Appendicular skeletal muscle mass (ASMM) is a measure of body muscle content, and it correlates with nutrition and physical status. Estimation of ASMM using anthropometric models is a well-established strategy...

Authors: Nirmala Rathnayake, Gayani Alwis, Janaka Lenora and Sarath Lekamwasam

Energy cost and lower leg muscle activities during erect bipedal locomotion under hyperoxia

Energy cost of transport per unit distance (CoT) against speed shows U-shaped fashion in walking and linear fashion in running, indicating that there exists a specific walking speed minimizing the CoT, being d...

Authors: Daijiro Abe, Yoshiyuki Fukuoka, Takafumi Maeda and Masahiro Horiuchi