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Journal of Medical Investigation: JMI

Yoshiro Abe, Ichiro Hashimoto, Soushi Ishida, Kazuhide Mineda, Sho Yoshimoto
BACKGROUND: Factors such as exposed bones or tendons can inhibit wound healing and make it a lengthy process unless aggressive debridement or vascularized flap surgery are performed. We have developed a new procedure involving simultaneous application of a skin graft and perifascial areolar tissue (PAT) and negative pressure wound therapy. METHODS: Of 8 patients with wounds, bones, tendons, and thick fascia were exposed in 4, 2, and 2 cases, respectively. These wounds were adequately covered with PAT, and split-thickness skin grafts were applied simultaneously on the PAT with a VACsize 4...
2018: Journal of Medical Investigation: JMI
Mitsuhiro Tsuboi, Kazuya Kondo, Hiromitsu Takizawa, Naoya Kawakita, Toru Sawada, Hiroaki Toba, Yukikiyo Kawakami, Mitsuteru Yoshida, Hisashi Ishikura, Suguru Kimura, Akira Tangoku
BACKGROUND: Adjuvant chemotherapy with uracil tegafur (UFT) improved survival among patients with completely resected stage I lung adenocarcinoma. S-1, an oral dihydropyrimidine dehydrogenase (DPD)-inhibitory 5-fluorouracil, is a more potent DPD inhibitor than UFT;therefore, we hypothesized that postoperative adjuvant chemotherapy with S-1 would be effective for advanced non-small cell lung cancer (NSCLC). We conducted a feasibility study of S-1 as postoperative adjuvant chemotherapy in patients with curatively resected pathological stage bold I back 10 bold I and bold I back 10 bold I back 20 bold I A NSCLC...
2018: Journal of Medical Investigation: JMI
Hisanori Uehara, Tomoko Kobayashi, Minoru Matsumoto, Shunsuke Watanabe, Akiko Yoneda, Yoshimi Bando
The prostate is surrounded by periprostatic adipose tissue. Although adipose tissue was thought to play limited physiological roles, it has recently been recognized as an active endocrine organ, secreting growth factors and adipokines. Epidemiologically, obesity is associated with prostate cancer progression. A major mechanism to explain the link between obesity and cancer includes the insulin and insulin-like growth factor (IGF)-1 axis, sex steroids, and adipokines. When prostate cancer cells invade periprostatic adipose tissue, adipose tissue contributes to create the tumor microenvironment, mainly via adipokine secretion...
2018: Journal of Medical Investigation: JMI
Nori Sato, Kosaku Higashino, Toshinori Sakai, Tomoya Terai, Vijay K Goel, Ashok Biyani, Nabil Ebraheim, Yoichiro Takata, Fumio Hayashi, Kazuta Yamashita, Masatoshi Morimoto, Hiroaki Manabe, Koichi Sairyo
Ligamentum flavum (LF) hypertrophy is one of the main factors of lumbar spinal canal stenosis (LSCS). The primary object of this study is to clarify the existence of epiligament in the LF and its role in hypertrophy, and to develop an LF hypertrophy animal model. A cadaveric spine from a 30-year-old man was used to investigate the existence of epiligament in LF. Five LF samples from LSCS patients were obtained to evaluate hypertrophied LF. To create a rat model, we destabilized the lumbar spine. Each LF was sagittally cut for histological evaluation...
2018: Journal of Medical Investigation: JMI
Nori Sato, Naomi Hase, Akemi Osaka, Koichi Sairyo, Shinsuke Katoh
Falls cause injuries such as fractures, skin lacerations, bleeding, and head injury, and could result in more severe medical conditions in hospitalized patients. We retrospectively investigated the incidence and characteristics of falls among hospitalized patients in an acute care hospital from incident reports by hospital staff between January and June 2013. There were 154 falls in 135 patients, 2 of which resulted in fracture. The average age of patients who fell was 63.9 (range 0 to 91) years. Many falls occurred at the bedside (68...
2018: Journal of Medical Investigation: JMI
Xiaolin Yang, Mariko Nakamoto, Emi Shuto, Akiko Hata, Nanako Aki, Yosuke Shikama, Yukiko Bando, Takako Ichihara, Takako Minamigawa, Yumi Kuwamura, Ayako Tamura, Hirokazu Uemura, Kokichi Arisawa, Makoto Funaki, Tohru Sakai
Epidemiological investigations have shown that consumption of soybeans or soy foods reduces the risk of the development of cardiovascular disease, cancer and osteoporosis. The aim of this study was to determine the associations between different soy foods and inflammatory markers, including high-sensitivity C-reactive protein (hs-CRP), interleukin (IL)-6, and IL-18, in Japanese workers. The cross-sectional study included 1,426 Japanese workers (1,053 men and 373 women) aged 20 to 64 years. Intake of 12 soy foods was estimated by a validated food frequency questionnaire...
2018: Journal of Medical Investigation: JMI
Yoko Sakai, Tsutsumi Yasuo M, Takuro Oyama, Chiaki Murakami, Nami Kakuta, Katsuya Tanaka
Robot-assisted laparoscopic radical prostatectomy (RALRP) is commonly performed in the surgical treatment of prostate cancer. However, the steep Trendelenburg position (25) and pneumoperitoneum required for this procedure can sometimes cause hemodynamic changes. Although blood pressure is traditionally monitored invasively during RALRP, the ClearSight system (BMEYE, Amsterdam, The Netherlands) enables a totally noninvasive and simple continuous blood pressure and cardiac output monitoring based on finger arterial pressure pulse contour analysis...
2018: Journal of Medical Investigation: JMI
Shukun Zhang, Juanli Liu, Dongmei Jiang, Tana Wuren, Siqing Ma, Yansheng Du, Xin Yi, Shizheng Wu
Hypoxia-induced plasma levels of VEGF and sFlt-1 are responsible for increased vascular permeability occurred in both brain and pulmonary edema. Currently, it remains unclear the exact roles of VEGF and sFlt-1 in High Altitude Pulmonary Edema (HAPE) pathogenesis. In this study, plasma levels of VEGF and sFlt-1 from 10 HAPE and 10 non-HAPE subjects were measured and compared. The results showed that plasma levels of both VEGF and sFlt-1 in HAPE patients were significantly increased as compared to the non-HAPE group...
2018: Journal of Medical Investigation: JMI
Mahmoud Mohamed Farouk, Takeshi Naito, Kayo Shinomiya, Yoshinori Mitamura
AIM: To evaluate the anatomical changes in the ciliary body (CB) during naturally stimulated accommodation in children using anterior segment optical coherence tomography (OCT). METHODS: This study was a prospective, observational, noncomparative case series included 18 eyes of 9 children (8 males and 1 female) aged from 4 to 10 years. Ciliary body thickness (CBT) was measured temporally by Anterior OCT at 1, 2 and 3 mm posterior to the scleral spur. Measurements were performed in the accommodated state and the unaccommodated state (with cycloplegia)...
2018: Journal of Medical Investigation: JMI
Tomoki Oshikawa, Yasuhiro Morimoto, Koji Kaneoka
Low back pain (LBP) often occurs in baseball players;however, the characteristics of the location of their LBP with respect to their throwing and hitting sides have not been clarified. In order to clarify the left-right asymmetry of LBP that occurs in baseball players, we surveyed 247 university baseball players using an LBP questionnaire. The main investigational items were:throwing and hitting side, position at the time of LBP experience, and LBP location. Based upon the indication of their throwing and hitting side, subjects were classified into unilateral rotational (UR) or bilateral rotational (BR) types...
2018: Journal of Medical Investigation: JMI
Hiromi Kawamura, Sarasa Tanaka, Yuri Uenami, Mariko Tani, Midori Ishitani, Saeko Morii, Motoyoshi Sakaue, Mikiko Ito
Refeeding syndrome (RFS) is characterized by the metabolic and clinical changes that occur following aggressive nutritional supplementation in malnourished patients. Hypophosphatemia is the hallmark of RFS and is key to its prevention and treatment in clinical practice. However, the mechanism of hypophosphatemia during RFS is unclear because of the lack of an animal model. In this study, we developed a rat RFS model as a first step to clarifying the molecular mechanism. After establishing the parenteral route, rats were fasted for 5 days and refeeding was started using total parenteral nutrition...
2018: Journal of Medical Investigation: JMI
Ying Lin Pei, Ting Chun Chen, Fang Yu Lin, Jia Yau Doong, Wen Lee Chen, Sumiko Kamoshita, Indri Kartiko Sari, Hitomi Takeichi, Shigeru Yamamoto
Tapioca milk tea, the most popular beverage in Taiwan, is consumed a lot by Taiwanese which contributed to their daily sugar intake. Our study purpose is to investigate whether limiting intake of tapioca milk tea is useful for the control of sugar intake in Taiwanese. The study was conducted in questionnaires selected 38 subjects, 20-24 y, from 341 university students in Kaohsiung City, Taiwan. Subjects were match-paired by sex, age, department, and randomly divided into two groups for cross-over design in which each group had 1 week with or without tapioca milk tea...
2018: Journal of Medical Investigation: JMI
Keigo Yada, Yuji Morine, Hiroki Ishibashi, Hiroki Mori, Mitsuo Shimada
BACKGROUND: The treatment strategy for jaundiced patients with hilar cholangiocarcinoma (HC) is not well established. In this study, we evaluate the feasibility of our perioperative protocol for jaundiced patients with HC. METHODS: Twenty patients with HC who underwent hepatic resection at our institute were enrolled, and patients were divided into icteric(n=6) and normal(n=14) group. As a perioperative protocol, Oral administration of Inchinkoto(ICKT), steroid and nafamostat mesilate were introduced...
2018: Journal of Medical Investigation: JMI
Takahiro Niimura, Yoshito Zamami, Toru Imai, Tsuyoshi Ito, Hidenori Sagara, Hichiya Hiroyuki, Satoru Esumi, Kenshi Takechi, Masaki Imanishi, Toshihiro Koyama, Manabu Amano, Naomi Kurata, Yoshihisa Kitamura, Hironori Nakura, Toshiaki Sendo, Keisuke Ishizawa
n emergency and critical care medical centers, tube administration is employed for patients who have difficulty swallowing oral drugs owing to decreased consciousness or mechanical ventilation. However, tube clogging due to drug injection is a concern. We compared the crushing method with the simple suspension method for the passage of amlodipine, an antihypertensive drug, in combination with rikkunshito, which has been used to treat upper gastrointestinal disorders such as functional dyspepsia and gastroesophageal reflux in emergency and critical care medical centers, to ascertain the effect of Kampo products on the passage of other drugs during tube administration...
2018: Journal of Medical Investigation: JMI
Masaaki Nishi, Mistuo Shimada, Kozo Yoshikawa, Jun Higashijima, Takuya Tokunaga, Hideya Kashihara, Chie Takasu, Daichi Ishikawa, Yuma Wada, Shohei Eto
BACKGROUND: Surgical indication for hepatic resection is controversial in gastric cancer liver metastasis (GLM). The aim of this study is to clarify the effect of hepatic resection for GLM. METHODOLOGY: Ten patients who underwent hepatic resection for GLM between 2001 and 2013 were enrolled in this study. Six patients underwent synchronous hepatic resection and gastrectomy, and the remaining four patients underwent metachronous hepatic resection. Six patients had solitary liver metastasis, and 4 patients had multiple liver metastasis...
2018: Journal of Medical Investigation: JMI
Indra Gunawan Prastiya, Vitria Prasetyo Risky, Irmawati Mira, Asih Setyoningrum Retno, Saharso Darto, Prasetyo Erny
OBJECTIVE: Individuals with CP have a lower life expectancy than the general population. The objective of the study is to investigate the risk factor of mortality in Indonesian children with CP. METHODS: An observational analytic study was conducted using medical records at pediatric ward Dr. Soetomo Hospital, Surabaya, Indonesia, from January 2014 to December 2016. Inclusion criteria was all of CP patients in that were hospitalized from 6 months to 14 year of age...
2018: Journal of Medical Investigation: JMI
Hiroyuki Kozai, Yuko Toyoda, Hisatsugu Goto, Jun Kishi, Makoto Tobiume, Yuya Yamashita, Haruka Nishimura, Mayo Kondo, Hiroshi Kawano, Yasuhiko Nishioka
A 65-year-old female had been treated rheumatoid arthritis (RA), interstitial pneumonia (IP) and nephrotic syndrome with prednisolone and cyclosporine. She was emergently admitted to our hospital due to the worsening exertional dyspnea and severe hypoxemia. Chest computed tomography (CT) showed new diffuse ground-glass opacities (GGOs) with slight consolidations along with bronchovascular bundle were observed in addition to pre-existing reticular shadows in both lungs with lower lobe-predominance. An acute exacerbation (AE) of pre-existing IP triggered by an infection was suspected, and the treatment with antibiotics and corticosteroid pulse therapy improved her general condition and chest radiological findings...
2018: Journal of Medical Investigation: JMI
Itaru Shigeyoshi, Koji Komori, Takashi Kinoshita, Taihei Oshiro, Seiji Ito, Tetsuya Abe, Yoshiki Senda, Kazunari Misawa, Yuichi Ito, Norihisa Uemura, Seiji Natsume, Eiji Higaki, Byonggu An, Akira Ouchi, Masayuki Tsutsuyama, Takahiro Hosoi, Daisuke Hayashi, Hideharu Tanaka, Tairin Uchino, Aina Kunitomo, Yasuhiro Shimizu
We report the case of a 77-year-old man who presented to our hospital with cecal cancer, lung metastasis, and liver metastasis in January 2013. After four courses of modified infusional intravenous fluorouracil and levofolinate with oxaliplatin (mFOLFOX 6) + bevacizumab, there was no new metastatic lesion and lung metastasis reduction was observed. Ileocecal resection was performed in May, left lower lung lobectomy in August, and extended right posterior segmentectomy + S8 partial liver resection was performed in December...
2018: Journal of Medical Investigation: JMI
Nami Kakuta, Yasuo M Tsutsumi, Chiaki Murakami, Yoko Sakai, Takuro Oyama, Asuka Kasai, Katsuyoshi Kume, Katsuya Tanaka
We investigated the effectiveness of the ClearSight system for hemodynamic management during kidney transplantation for a recipient. The recipient was to receive a kidney transplant from his mother under general anesthesia. We used continuous noninvasive finger-cuff-based monitoring of blood pressure, provided by the ClearSight system, and stroke volume variation to predict fluid responsiveness. We used of a balanced anesthetic technique and stringent monitoring standards to ensure a successful outcome for the patient...
2018: Journal of Medical Investigation: JMI
Koji Komori, Takashi Kinoshita, Taihei Oshiro, Seiji Ito, Tetsuya Abe, Yoshiki Senda, Kazunari Misawa, Yuichi Ito, Norihisa Uemura, Seiji Natsume, Eigi Higaki, Akira Ouchi, Masayuki Tsutsuyama, Takahiro Hosoi, Itaru Shigeyoshi, Byonggu An, Tomoyuki Akazawa, Daisuke Hayashi, Hideharu Tanaka, Tairin Uchino, Aina Kunitomo, Yasuhiro Shimizu
Herein, we describe the operative procedure for combined resection of re-recurrent lateral lymph nodes and the external iliac vein. There is no consensus on the clinical implications of resection of locally re-recurrent colorectal tumors, as the operative procedure is extremely difficult. We present the case of a 52-year-old woman who underwent abdominoperineal resection. About one year later, we excised a recurrent lymph node in the left lateral obturator area through an extraperitoneal approach. About 18 months later, lymph node re-recurrence in the left external iliac area was observed...
2018: Journal of Medical Investigation: JMI
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