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Keio Journal of Medicine

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https://www.readbyqxmd.com/read/28123135/chronological-spontaneous-partial-regression-of-a-cerebral-arteriovenous-malformation-twenty-four-years-follow-up
#1
Dai Kamamoto, Satoshi Takahashi, Kazunari Yoshida
No abstract text is available yet for this article.
January 26, 2017: Keio Journal of Medicine
https://www.readbyqxmd.com/read/28111378/differential-x-chromosome-inactivation-patterns-during-the-propagation-of-human-induced-pluripotent-stem-cells
#2
Tomoko Andoh-Noda, Wado Akamatsu, Kunio Miyake, Tetsuro Kobayashi, Manabu Ohyama, Hiroshi Kurosawa, Takeo Kubota, Hideyuki Okano
Human induced pluripotent stem cells (hiPSCs) represent a potentially useful tool for studying the molecular mechanisms of disease thanks to the ability to generate patient-specific hiPSC clones. However, previous studies have reported that DNA methylation profiles, including those for imprinted genes, may change during passaging of hiPSCs. This is particularly problematic for hiPSC models of X-linked disease, as unstable X chromosome inactivation status may affect the detection of phenotypes. In the present study, we examined the epigenetic status of hiPSCs derived from patients with Rett syndrome, an X-linked disease during long-term culture...
January 20, 2017: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27237784/warfarin-associated-intraspinal-hematoma
#3
Joji Inamasu, Keisuke Ito, Natsuki Hattori, Yuichi Hirose
Intracerebral hemorrhage is a well-known complication resulting from warfarin use; however, warfarin-associated intraspinal hematoma is very rare. Warfarin-associated intraspinal hematoma may exhibit delayed progression, and patients may present with atypical symptoms, occasionally resulting in delayed diagnosis. We report the case of a 65-year-old man who visited our emergency department (ED) with acute urinary retention. He had been previously diagnosed with non-valvular atrial fibrillation, arterial hypertension, and benign prostatic hyperplasia, and he used warfarin for the prevention of systemic embolism...
December 25, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27170234/contrast-induced-acute-kidney-injury
#4
Koichiro Homma
Because of the increased use of contrast media, the potential risk of contrast-induced acute kidney injury (CIAKI) has also increased. CIAKI often results in chronic kidney disease (CKD), an affliction with increasing incidence in modern society. The current prevalence of CIAKI is difficult to estimate because most victims are asymptomatic. The first Japanese guidelines regarding contrast agent examinations were recently announced, but their only recommendation is to provide classic fluid replacement with saline 6-12 h before and after the contrast procedure...
December 25, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27990008/anemia-treatment-by-erythropoiesis-stimulating-agents-during-the-6-months-before-initiation-of-hemodialysis-comparison-between-darbepoetin-alfa-and-continuous-erythropoietin-receptor-activator
#5
Tadashi Yoshida, Matsuhiko Hayashi
Anemia in chronic kidney disease (CKD) is a risk factor for cardiovascular diseases and is treated by long-acting erythropoiesis-stimulating agents (ESA). Although results of previous studies showed that the hemoglobin level could not be maintained at initiation of dialysis in CKD patients treated with recombinant human erythropoietin, it remains undetermined if long-acting ESA are effective to prevent the progression of anemia at initiation of dialysis. In the present study, hemoglobin levels in 40 CKD patients treated with darbepoetin alfa (DA) and 15 CKD patients treated with a continuous erythropoietin receptor activator (CERA) were retrospectively compared during the 6 months period prior to initiation of dialysis...
December 19, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27319976/cardiopulmonary-resuscitation-training-in-schools-a-comparison-of-trainee-satisfaction-among-different-age-groups
#6
Shingo Hori, Masaru Suzuki, Motoyasu Yamazaki, Naoki Aikawa, Hajime Yamazaki
Cardiopulmonary resuscitation (CPR) has recently been added to the school curriculum worldwide and is currently taught to students between the ages of 10 and 16 years. The effect of the age of trainees on their satisfaction with CPR training has yet been elucidated. The aim of this study was to compare the satisfaction of trainees of different ages who participated in CPR training in schools in Japan. In total, 392 primary school students (10-11 years old), 1798 junior high school students (12-13 years old), and 4162 high schools students (15-16 years old) underwent the same 3-h course of CPR training, according to the guidelines of 2000 for Emergency Cardiovascular Care and CPR...
September 25, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27498746/potential-universal-application-of-high-intensity-interval-training-from-athletes-and-sports-lovers-to-patients
#7
Azuma Koichiro, Matsumoto Hideo
Recently, high-intensity interval training (HIIT) has received much attention as a promising exercise option not only to improve aerobic fitness, but also to prevent and improve lifestyle-related diseases. Epidemiological studies have shown that the exercise volume, as determined by the product of exercise intensity, duration, and frequency, has been shown to be important for improvements in muscle mitochondrial activity and subsequent improvements in aerobic fitness, insulin sensitivity, and metabolic variables...
August 8, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27170235/cardiac-senescence-heart-failure-and-frailty-a-triangle-in-elderly-people
#8
Ken Shinmura
Cardiovascular disease (CVD) is a common problem in the elderly. In particular, the morbidity and mortality of patients with heart failure (HF) increase with age. The poor outcomes of elderly patients with HF can be explained partly by cardiac aging at the cellular and organ levels. Moreover, recent evidence has demonstrated that functional evaluation, which may reflect the status of individual aging, predicts mortality in patients with HF. Age-related changes occur throughout the body and in virtually all organ systems...
June 25, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/26853879/vitamin-d-deficiency-with-high-intact-pth-levels-is-more-common-in-younger-than-in-older-women-a-study-of-women-aged-39-64-years
#9
Takeshi Miyamoto, Eri Katsuyama, Hiroya Kanagawa, Atsuhiro Fujie, Hiroya Miyamoto, Shigeyuki Yoshida, Tomoaki Mori, Kana Miyamoto, Yuiko Sato, Tami Kobayashi, Masaya Nakamura, Morio Matsumoto, Yuji Nishiwaki, Hiroshi Hirose, Takeshi Kanda, Ikuo Saito, Yoshiaki Toyama
Low serum 25-hydroxyvitamin D (25(OH)D) levels are implicated as a risk factor for hip and spine fractures. Studies of the relation between 25(OH)D levels and fractures have primarily involved elderly osteoporosis patients or patients with fractures; however, the serum 25(OH)D and parathyroid hormone (PTH) status in younger adult populations remains largely unknown. We evaluated serum 25(OH)D and intact PTH levels in 411 women aged 39-64 years who were not receiving medication for osteoporosis or other bone diseases...
June 25, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27319977/cutaneous-metaplastic-synovial-cyst-case-report-and-literature-review-from-the-dermatological-point-of-view
#10
Masahiro Fukuyama, Yohei Sato, Jun Hayakawa, Manabu Ohyama
Cutaneous metaplastic synovial cyst (CMSC) is a rare tumor typically representing a solitary, well-circumscribed and cystic mass, which is not connected to the joint. Synovial cysts have been predominantly reported by orthopedists or pathologists and the presence of CMSC has not been well recognized by dermatologists. Herein, we reported CMSC developing in a 68-year-old woman receiving systemic corticosteroid for the treatment of eosinophilic granulomatosis with polyangitis and attempt to delineate clinical characteristics of this unusual neoplasm by reviewing the literature, especially focusing on dermatological descriptions...
June 17, 2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/28025425/virus-and-host-events-in-squamous-carcinogenesis
#11
Nicholas Coleman
Our group investigates early and late stages in the development of squamous cell carcinomas (SCCs), in order to identify new approaches to diagnosis and therapy. The principal themes are:1. Transcriptional deregulation of high-risk human papillomavirus (HRHPV)We study mechanisms of HRHPV transcriptional deregulation and competitive cell selection during SCC progression, focussing on the causes and effects of integration of HPV16 into the host genome. We showed that HPV16 integration does not necessarily lead to a competitive growth advantage or increased levels of virus oncogenes...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27665866/robotic-assessment-of-upper-limb-function-after-proximal-humeral-fracture-personal-experience-as-a-patient-and-occupational-therapist
#12
Atsuko Nishimoto, Yohei Otaka, Shoko Kasuga, Eri Otaka, Kotaro Yamazaki, Junichi Ushiba, Meigen Liu
Robotics is an emerging field in rehabilitation medicine. Robots have the potential to complement traditional clinical assessments because they can measure functions more precisely and quantitatively than current clinical assessments. We present a patient with a proximal humeral fracture whose recovery process was evaluated with an exoskeleton robotic device. The patient, a 34-year-old woman, suffered a left proximal humeral fracture while snowboarding. She is an occupational therapist and is the first author of this study...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27349663/the-mechanism-for-the-effect-of-chinese-medicine-on-strait-episode-of-complex-diseases
#13
Jing-Yan Han
Complex diseases always involve some strait episode, such as myocardial hypertrophy and fibrosis caused by hypertension, microcirculation dysfunction and injury in heart, brain, lever, and intestine following ischemia and reperfusion, endotoxin induced multiorgan injury, and recovery after intestinal mucosa damage, for which intervention by a single medicine remains unsatisfied in clinic.Chinese medicine has been applied in clinic for more than two thousand years, which presents as a healthcare system using compound formula preparation, treatment based on syndrome differentiation and individualization thus has advantage in dealing with strait episode of complex diseases...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27349662/perception-of-thromboembolism-risk-differences-between-the-departments-of-internal-medicine-and-emergency-medicine
#14
Giovanni Maria Vincentelli, Manuel Monti, Maria Rosaria Pirro, Giuliano Bertazzoni, Francesco Rocco Pugliese, Maurizio Ciammaichella, Maria Pia Ruggieri, Raffaele Landolfi
The latest developments in emergency medicine (EM) have introduced new typologies of patients that have not been taken into account in previous studies of venous thromboembolism (VTE) risk. The aim of the current study was to evaluate by comparing the main international risk scores whether different perceptions of VTE risk exist in internal medicine (IM) departments and in EM departments. This cross-sectional observational study involved 23 IM and 10 EM departments of 21 different hospitals. The patient data were collected by physicians who were blinded to the purpose of the study...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27040887/the-role-of-the-adipocyte-hormone-leptin-in-alzheimer-s-disease
#15
Makoto Ishii
Cognitive deficits are the major manifestation of Alzheimer's disease (AD); however, weight loss can precede the mental decline and correlates with disease severity. Thus, brain circuits controlling body weight may be altered early in AD and could be intrinsic to AD pathobiology. In mouse models, we found that amyloid-beta, a major pathogenic factor in AD, could inhibit hypothalamic neurons in the leptin pathway, which was associated with early body weight/metabolic deficits. Ongoing research seeks to elucidate the mechanisms underlying the body weight/metabolic deficits and hypothalamic dysfunction in AD using both mouse models and clinically relevant human studies...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27040886/dynamic-role-of-the-gtp-energy-metabolism-in-cancers
#16
Atsuo T Sasaki
Rapid growing cells like tumor cells need a vast amount of energy to match their high metabolic demand. Guanine triphosphate (GTP) is one of major cellular metabolites and served as a building block for RNA and DNA as well as an energy source to drive cellular activities such as intracellular trafficking, the cell migration and translation. However, how cancer cells regulate GTP energy levels to adapt for their high demand remain largely unknown yet. In addition, how cells detect GTP levels remains unknown...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/27040885/a-case-of-severe-rectal-hemorrhage-possibly-caused-by-radiation-recall-after-administration-of-gemcitabine
#17
Koshiro Nishimoto, Yushi Akise, Masaharu Miyazawa, Shoji Kutsuki, Subaru Hashimoto, Atsushi Uchida
Radiation recall is an acute inflammatory reaction that can be triggered when systemic agents are administered long time after radiotherapy. Because radiotherapy is now indicated for many types of cancer, care should be taken regarding possible toxic events relating to radiotherapy in combination with radio-sensitizing agents. Gemcitabine, one such anti-cancer agent, is widely used, especially for urologic cancers. We report an intriguing case of possible radiation recall in the rectum caused by gemcitabine administration 37 years after radiation therapy...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/26853878/vertebrate-neural-stem-cells-development-plasticity-and-regeneration
#18
REVIEW
Takuya Shimazaki
Natural recovery from disease and damage in the adult mammalian central nervous system (CNS) is limited compared with that in lower vertebrate species, including fish and salamanders. Species-specific differences in the plasticity of the CNS reflect these differences in regenerative capacity. Despite numerous extensive studies in the field of CNS regeneration, our understanding of the molecular mechanisms determining the regenerative capacity of the CNS is still relatively poor. The discovery of adult neural stem cells (aNSCs) in mammals, including humans, in the early 1990s has opened up new possibilities for the treatment of CNS disorders via self-regeneration through the mobilization of these cells...
2016: Keio Journal of Medicine
https://www.readbyqxmd.com/read/26727580/engineering-fat-cell-fate-to-fight-obesity-and-metabolic-diseases
#19
Shingo Kajimura
All mammals harbor two types of adipose tissues that serve distinct physiological functions: white adipose tissue (WAT) and brown adipose tissue (BAT). WAT functions mainly in the storage of excess energy, while BAT specializes in dissipating energy in the form of heat and functions as a defense against hypothermia and obesity. Since adult humans possess significant amounts of active BAT depots and it's mass inversely correlates with adiposity, BAT plays an important role in human obesity and energy homeostasis...
2015: Keio Journal of Medicine
https://www.readbyqxmd.com/read/26727579/recent-trials-challenge-the-benefits-of-omega-3
#20
William S Harris
Recent randomized trials and subsequent meta-analyses have questioned the value of n-3 fatty acid supplementation in cardiovascular disease risk reduction. This lecture will review the clinical trials published between 2010 and 2014 that failed to show benefits of n-3 fatty acids, and one meta-analysis from 2012 that used a controversial statistical approach to conclude no effect. The question of the extent to which n-3 fatty acid supplementation reduces risk for cardiovascular disease remains open. Future studies must be properly powered, use doses of n-3 fatty acids significantly higher than those provided in background diets, focus on patient populations with low n-3 fatty acid tissue levels, treat for longer periods of time, and consider the effects of these agents in the great majority of patients who are not on guideline-directed therapeutic regimens...
2015: Keio Journal of Medicine
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