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Tohoku Journal of Experimental Medicine

Zhuoyu Chen, Xiaofeng Yin, Kaifei Li, Shuyu Chen, Haixia Li, Yao Li, Qiong Zhang, Haifang Wang, Yurong Qiu
Colon cancer is one of the most common malignancies causing the majority of cancer-related deaths worldwide. The tripartite motif family protein 72 (TRIM72), also known as mitsugumin 53, acts as an E3 ubiquitin ligase. TRIM72 is involved in insulin resistance and metabolic syndrome, which are risk factors of colon cancer. However, the correlation between TRIM72 and colon cancer remains unknown. In the present study, we explored the expression profile of TRIM72 in colon cancer tissues and the diagnostic value of serum TRIM72 in colon cancer...
May 2018: Tohoku Journal of Experimental Medicine
Guangyong Tian, Shanshan Zhang, Jingya Yang
Sudden sensorineural hearing loss (SSNHL) is a multifactorial disease, and its etiology remains elusive. SSNHL is possibly caused by both the environmental factors and genetic alterations. Recently, several studies suggested that inflammation may be involved in the pathogenesis of SSNHL, and certain gene polymorphisms may have correlations with SSNHL. Interleukin 6 (IL-6) functions both as a pro-inflammatory cytokine and an anti-inflammatory factor. Intercellular adhesion molecule-1 (ICAM-1) is a member of the immunoglobulin family that is also involved in inflammation response...
May 2018: Tohoku Journal of Experimental Medicine
Kyoko Kasahara, Tomohiro Mimura, Suzuko Moritani, Taku Kawasaki, Shinji Imai, Shunichiro Tsuji, Fuminori Kimura, Takashi Murakami
Subchondral insufficiency fracture (SIF) is a fragility fracture secondary to osteoporosis that leads to collapse of the femoral head with no evidence of osteonecrosis. SIF of the femoral head has been reported in adults of varying ages and both sexes, but it has never been reported to occur in pregnant women. Herein, we describe a 40-year-old primiparous patient with pre-existing anorexia nervosa who developed SIF of the femoral head in the third trimester. At 29 weeks of gestation, the patient complained of sudden pain on walking in both hips...
May 2018: Tohoku Journal of Experimental Medicine
Hideki Okata, Waku Hatta, Katsunori Iijima, Kiyotaka Asanuma, Atsuki Tsuruya, Naoki Asano, Tomoyuki Koike, Shin Hamada, Toru Nakayama, Atsushi Masamune, Tooru Shimosegawa
Ethanol is oxidized by alcohol dehydrogenase to acetaldehyde, a recognized carcinogen for the esophagus. However, no previous study has measured the acetaldehyde levels in the esophageal tissue. L-cysteine has been shown to reduce the acetaldehyde levels in the saliva; however, it is unknown whether L-cysteine intake affects the acetaldehyde concentration in the esophageal tissue. The aim of this study was to measure the acetaldehyde concentration in the esophageal tissue after ethanol drinking and evaluate the effect of L-cysteine intake on the acetaldehyde levels in the esophagus...
April 2018: Tohoku Journal of Experimental Medicine
Hiroki Isono, Tetsuhiro Maeno, Shigeyuki Watanabe
ST-elevation myocardial infarction (STEMI) is a fatal condition. Prompt primary percutaneous coronary intervention is associated with lower mortality. However, community hospitals in Japan lack human and medical resources, and implementation of the same strategies as those used in the USA, such as an on-call cardiologist at the hospital, to achieve a door-to-balloon time of ≤ 90 min appears particularly challenging. Therefore, we used Training for Effective and Efficient Action in Medical Service-Better Process (TEAMS-BP) to develop a new process and assessed its effectiveness in reducing door-to-balloon time...
April 2018: Tohoku Journal of Experimental Medicine
Yutaka Yabe, Yoshihiro Hagiwara, Takuya Sekiguchi, Haruki Momma, Masahiro Tsuchiya, Kaoru Kuroki, Kenji Kanazawa, Masashi Koide, Nobuyuki Itaya, Shinichiro Yoshida, Yasuhito Sogi, Toshihisa Yano, Eiji Itoi, Ryoichi Nagatomi
Verbal or physical abuse from coaches has a negative impact on young athletes. To prevent abuse against young athletes, it is important to know the characteristics of abusive coaches. This study aimed to elucidate the characteristics of coaches who commit verbal or physical abuse in youth sports teams. A cross-sectional study was conducted with coaches of youth sport teams in Miyagi prefecture, Japan (n = 1,283), using a self-reported questionnaire (response rate was 24.0%). Multivariate logistic regression models were used for analyses...
April 2018: Tohoku Journal of Experimental Medicine
Qin Meng, Pengjing Duan, Lin Li, Yongmei Miao
Ovarian cancer is the fourth leading cause of cancer death in women and the most fatal gynecologic malignancy. Placenta growth factor (PGF), a member of the vascular endothelial growth factor, plays an important role in angiogenesis. The overexpression of PGF was observed in several types of cancers, but the clinical significance of PGF in epithelial ovarian cancer (EOC) is still unknown. To explore the prognostic value of PGF among patients with serous EOC, we analyzed the expression of PGF in 89 EOC specimens by immunohistochemistry...
April 2018: Tohoku Journal of Experimental Medicine
Xing-Jie Bao, Shu-Qi Mao, Tian-Lun Gu, Shu-Ying Zheng, Jin-Shun Zhao, Li-Na Zhang
Essential hypertension (EH) is a multifactorial disease. Interferon-γ (IFN-γ) plays an important role in the onset of EH through cytokine-mediated systemic inflammatory responses. We aimed to determine whether the methylation status of the IFN-γ gene (IFNG) promoter is involved in the pathogenesis of EH. Six copies of CpG dinucleotides are distributed between 3,203 bp and 3,121 bp upstream from the transcription initiation site of IFNG, termed CpG1 to CpG6 in the 5'-to-3' direction. We recruited 96 patients with EH and 96 sex- and age-matched healthy subjects as controls...
April 2018: Tohoku Journal of Experimental Medicine
Kimitaka Nakazaki, Erika Ogawa, Mika Ishige, Nobuyuki Ishige, Tatsuo Fuchigami, Shori Takahashi
Carnitine is a water-soluble amino acid derivative required for β-oxidation of long-chain fatty acids. In carnitine cycle abnormalities and low carnitine states, fatty acid β-oxidation is inhibited during fasting, resulting in hypoglycemia. Pivalic acid is a substance used in prodrugs to increase absorption of parent drugs, and antibiotics containing pivalic acid are frequently used as wide spectrum antibiotics for pediatric patients in Japan. Pivalic acid released after absorption is conjugated with free carnitine to form pivaloylcarnitine, which is then excreted in urine...
April 2018: Tohoku Journal of Experimental Medicine
Emilija Nikolić, Tijana Brandmajer, Vesna Bokan, Maria Ulyashova, Maya Rubtsova
Urinary tract infection (UTI), which is typically caused by Escherichia coli (E. coli), is an insufficiently recognized co-morbidity among patients with chronic obstructive pulmonary disease (COPD). Adequate treatment can be complicated by resistance of the causative pathogen to beta-lactam antibiotics, which often produce beta-lactamase enzymes that destroy the antibiotic. The beta-lactamase family of enzymes is extremely diverse, including different types of enzyme and mutant forms. In this study, we analyzed 580 patients with COPD (236 females and 344 males) and thus found 218 patients with co-morbid UTIs, including 58 patients with UTI caused by E...
April 2018: Tohoku Journal of Experimental Medicine
Di He, Min Liu, Bo Liu
Systemic lupus erythematosus (SLE) is an autoimmune connective tissue disease with a wide range of clinical presentations. Lupus nephritis (LN) is the most serious manifestation of SLE. Interleukin-35 (IL-35), a member of the interleukin-12 family, has been identified as a novel anti-inflammatory cytokine. In the past ten years, the role of IL-35 in inflammatory and autoimmune diseases has been studied extensively. Serum IL-35 levels, however, have not been studied in LN patients. The aim of the study was to determine serum IL-35 levels in SLE patients with and without nephritis, and their clinical values...
April 2018: Tohoku Journal of Experimental Medicine
Takakuni Tanaka, Guang Hong, Kanako Tominami, Tada-Aki Kudo
Oral fat sensitivity (OFS), the ability to taste fat, is associated with eating habits in humans, including daily fatty food consumption; namely, proper OFS is important for health. In addition, lifestyle factors, such as stress and sleep, may affect fat intake. However, correlations between OFS, stress management, and sleep are largely unknown. Thus, we investigated the associations of OFS with lifestyle factors regarding stress management and daytime sleepiness in healthy young adult men. We measured OFS, sensitivities for three prototypical tastes (sweet, salty, and sour), and BMI in 22 subjects (27...
April 2018: Tohoku Journal of Experimental Medicine
Nobuyuki Takahashi, Feng Li, Tomofumi Fushima, Gen Oyanagi, Emiko Sato, Yuji Oe, Akiyo Sekimoto, Daisuke Saigusa, Hiroshi Sato, Sadayoshi Ito
Up to 8% of pregnant women suffer from preeclampsia (PE), a deadly disease characterized by high blood pressure (BP), blood vessel damage, called endotheliosis (vascular endothelial swelling with narrowing of capillary lumen), and high levels of protein in the urine. PE is often associated with premature delivery, which is a risk factor of cardiovascular and metabolic diseases among the offspring. Accordingly, establishing drug treatments of PE is in immediate needs. Currently, many of anti-hypertensive drugs cause malformation of the fetuses and are contraindicated for pregnant women...
March 2018: Tohoku Journal of Experimental Medicine
Wenwen Pang, Pengcheng Shang, Qingfeng Li, Jiao Xu, Lei Bi, Jing Zhong, Xiaofang Pei
Opportunistic infections (OIs) are the most significant complication of human immunodeficiency virus (HIV) infection. The prevalence of OIs differs among various countries in part due to different climates and socio-economic conditions. We, therefore, carried out the retrospective study at the Public Health Clinical Center of Chengdu, Sichuan to comprehensively investigate the prevalence of OIs, predictors of OIs, and risk factors for in-hospital death among HIV-infected patients. Sichuan in West China is characterized by the largest population living with HIV/Acquired immunodeficiency syndrome (AIDS) across China...
March 2018: Tohoku Journal of Experimental Medicine
Jo-Woong Choi, Chorong Oh, Sun-Yup Shim, Suyoun Jeong, Hyung Sik Kim, Min-Sun Kim
Curcuma longa is rich in curcumin and used to treat disease and in food as a spice, especially in curry dishes. The objective of the present study was to determine whether curry intake reduces blood levels of heavy metals and hypertension (HTN) using Korean National Health and Nutrition Examination Survey 2013 data (n = 1,350). Study subjects (n = 1,350) were divided into two groups: 1) a curry intake group (n = 603), members of which had consumed a curry dish more than once a month over the previous year, and 2) a non-curry intake group (n = 747)...
March 2018: Tohoku Journal of Experimental Medicine
Masatoshi Inagaki, Masaki Fujiwara, Naoki Nakaya, Maiko Fujimori, Yuji Higuchi, Chinatsu Hayashibara, Ryuhei So, Kyoko Kakeda, Masafumi Kodama, Yosuke Uchitomi, Norihito Yamada
Health care disparities among people with schizophrenia is a global concern. Our previous study revealed cancer screening rates in Japanese people with schizophrenia lower than rates of approximately 40% of the general population. However, that study was based on self-reports, which can be inaccurate, and rates did not differentiate the types of cancer screening provider (i.e., municipal screening, collective opportunistic screening, and individual opportunistic screening). This study aimed to investigate records-based cancer screening rates, focusing on participation rates of people with schizophrenia who are subject to municipal cancer screening programs...
March 2018: Tohoku Journal of Experimental Medicine
JongEun Yim, Jerrold Petrofsky, Haneul Lee
Ankle and foot injuries are common among athletes and physically active individuals. The most common residual disability, ankle sprain, is characterized by instability along with postural sway. If the supporting structures around a joint become lax, posture stability and balance are also affected. Previous studies have examined muscle stiffness and elasticity and postural sway separately; however, the relationship between these factors is yet unknown. It is well known that the levels of sex hormones, especially estrogen, change in women over the phase of the menstrual cycle...
March 2018: Tohoku Journal of Experimental Medicine
Yi Shi, Jianfeng Bai, Shuwei Guo, Jiandong Wang
Intrahepatic cholangiocarcinoma (ICC) is an aggressive malignancy of the bile duct, representing the second most common primary liver cancer. Wntless (Wls) is a highly conserved transmembrane protein that shuttles palmitoylated Wnt proteins from the endoplasmic reticulum to the plasma membrane. Wls is highly expressed in various types of cancers and is essential for cell proliferation, anti-apoptotic activity, and survival. The profile of Wls expression and its clinical significance has not been well clarified in ICC...
March 2018: Tohoku Journal of Experimental Medicine
Wenyu Hu, Yanguo Xin, Yinan Zhao, Jian Hu
The formation and conduction of electrocardiosignals and the synchronous contraction of atria and ventricles with rhythmicity are both triggered and regulated by the cardiac conduction system (CCS). Defect of this system will lead to various types of cardiac arrhythmias. In recent years, the research progress of molecular genetics and developmental biology revealed a clearer understanding of differentiation and development of the cardiac conduction system and their regulatory mechanisms. Short stature homeobox 2 (Shox2) transcription factor, encoded by Shox2 gene in the mouse, is crucial in the formation and differentiation of the sinoatrial node (SAN)...
March 2018: Tohoku Journal of Experimental Medicine
Lianjin Jin, Hidetoshi Nara, Mizanur Rahman, Yuji Takeda, Akemi Araki, Hironobu Asao
The cytokine interleukin-21 (IL-21) is mainly produced from activated CD4+ T cells and natural killer T (NKT) cells. IL-21 enhances the proliferation and differentiation of T cells and B cells and also increases cytotoxicity of CD8+ T cells and NK cells through the IL-21 receptor and its downstream signaling molecules such as signal transducers and activator of transcription 3 (STAT3) and extracellular signal-regulated kinase 1/2 (ERK1/2). SH2 domain-containing tyrosine phosphatase (SHP-2) is ubiquitously expressed, including hematopoietic cells...
March 2018: Tohoku Journal of Experimental Medicine
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