Changes in Cell Wall Composition in Various Growth Condition

Susumu Kuraishi 한국식물생명공학회 ( 구 한국식물조직배양학회 ) 1991 한국식물생명공학회 춘계학술연구발표회 Vol.1991 No.-

Safety and feasibility of opening window fistulotomy as a new precutting technique for primary biliary access in endoscopic retrograde cholangiopancreatography

Yasuhiro Kuraishi,Kazuo Hara,Shin Haba,Takamichi Kuwahara,Nozomi Okuno,Takafumi Yanaidani,Sho Ishikawa,Tsukasa Yasuda,Masanori Yamada,Nobumasa Mizuno 대한소화기내시경학회 2023 Clinical Endoscopy Vol.56 No.4

Background/Aims: Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) is the most common and serious complication of endoscopic retrograde cholangiopancreatography. To prevent this event, a unique precutting method, termed opening window fistulotomy, was performed in patients with a large infundibulum as the primary procedure for biliary cannulation, whereby a suprapapillary laid-down H-shaped incision was made without touching the orifice. This study aimed to assess the safety and feasibility of this novel technique. Methods: One hundred and ten patients were prospectively enrolled in this study. Patients with a papillary roof size ≥10 mm underwent opening window fistulotomy for primary biliary access. In addition, the incidence of complications and success rate of biliary cannulation were evaluated. Results: The median size of the papillary roof was 6 mm (range, 3–20 mm). Opening window fistulotomy was performed in 30 patients (27.3%), none of whom displayed PEP. Duodenal perforation was recorded in one patient (3.3%), which was resolved by conservative treatment. The cannulation rate was high (96.7%, 29/30 patients). The median duration of biliary access was 8 minutes (range, 3–15 minutes). Conclusions: Opening window fistulotomy demonstrated its feasibility for primary biliary access by achieving great safety with no PEP complications and a high success rate for biliary cannulation.

ある農家の盆行事

倉石美都(Kuraishi, Mito) 한국일본문화학회 2018 日本文化學報 Vol.0 No.78

Currently in Japan, there is strong encouragement from the government for people to move to the countryside, including the depopulated areas far from the city. However, there are still are many people who want to move to the cities, especially Tokyo, where diverse people gather and live. Most new cultural developments begin in “the cities,” where city culture is intermixed with various traditional cultures, urbanization, and urban folklore. City culture is changed by people living in the city and new city culture comes from people with a range of various traditional cultural backgrounds, but until now it has been unclear how much they have brought and preserved of their own cultures. This paper studies a family (the T family) from M village in Nagano and compares what and how much changed in the way they celebrated their Bon Festival after they moved to Tokyo. It also compares the role of the family during Bon. In studies of city folklore, not much research has focused on how country people moving to the city changes their traditional cultures due to a change in living environment. For this study, I focused on one event and reported each family member’s actual situation before and after moving, including the family’s change in consciousness of their roles.

Comparison of Clinical and Radiological Results of Posterolateral Fusion and Posterior Lumbar Interbody Fusion in the Treatment of L4 Degenerative Lumbar Spondylolisthesis

Shugo Kuraishi,Jun Takahashi,Keijiro Mukaiyama,Masayuki Shimizu,Shota Ikegami,Toshimasa Futatsugi,Hiroki Hirabayashi,Nobuhide Ogihara,Hiroyuki Hashidate,Yutaka Tateiwa,Hisatoshi Kinoshita,Hiroyuki Kat 대한척추외과학회 2016 Asian Spine Journal Vol.10 No.1

Study Design: Multicenter analysis of two groups of patients surgically treated for degenerative L4 unstable spondylolisthesis. Purpose: To compare the clinical and radiographic outcomes of posterolateral fusion (PLF) and posterior lumbar interbody fusion (PLIF) for degenerative L4 unstable spondylolisthesis. Overview of Literature: Surgery for lumbar degenerative spondylolisthesis is widely performed. However, few reports have compared the outcome of PLF to that of PLIF for degenerative L4 unstable spondylolisthesis. Methods: Patients with L4 unstable spondylolisthesis with Meyerding grade II or more, slip of >10° or >4 mm upon maximum flexion and extension bending, and posterior opening of >5 degree upon flexion bending were studied. Patients were treated from January 2008 to January 2010. Patients who underwent PLF (n=12) and PLIF (n=19) were followed-up for >2 years. Radiographic findings and clinical outcomes evaluated by the Japanese Orthopaedic Association (JOA) score were compared between the two groups. Radiographic evaluation included slip angle, translation, slip angle and translation during maximum flexion and extension bending, intervertebral disc height, lumbar lordotic angle, and fusion rate. Results: JOA scores of the PLF group before surgery and at final follow-up were 12.3±4.8 and 24.1±3.7, respectively; those of the PLIF group were 14.7±4.8 and 24.2±7.8, respectively, with no significant difference between the two groups. Correction of slip estimated from postoperative slip angle, translation, and maintenance of intervertebral disc height in the PLIF group was significantly (p <0.05) better than those in the PLF group. However, there was no significant difference in lumbar lordotic angle, slip angle and translation angle upon maximum flexion, or extension bending. Fusion rates of the PLIF and PLF groups had no significant difference. Conclusions: The L4–L5 level posterior instrumented fusion for unstable spondylolisthesis using both PLF and PLIF could ameliorate clinical symptoms when local stability is achieved.

Cervical Ossification of Posterior Longitudinal Ligament in X-Linked Hypophosphatemic Rickets Revealing Homogeneously Increased Vertebral Bone Density

Masato Shiba,Masaki Mizuno,Keita Kuraishi,Hidenori Suzuki 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.1

There is no report that describes in detail the radiological and intraoperative findings of rickets with symptomatic cervical ossification of the posterior longitudinal ligament. Here, we describe a case of X-linked hypophosphatemic rickets with cervical ossification of the posterior longitudinal ligament presenting unique radiological and intraoperative findings. The patient presented progressive tetraparesis. Magnetic resonance imaging studies revealed severe cervical spinal cord compression caused by ossification of the posterior longitudinal ligament. Computed tomography scans revealed homogeneously increased vertebral bone density. An expansive laminoplasty was performed. At surgery, homogeneously hard lamina bone was burdened in drilling and opening of the laminae. The patient’s neurological symptoms were improved postoperatively. Bony fusion of the hinges occurred postoperatively. Therefore, expansive laminoplasty could be performed for symptomatic cervical ossification of the posterior longitudinal ligament with X-linked hypophosphatemic rickets. However, unusual bone characters should be taken into consideration for careful operation during surgery.

Myxopapillary Ependymoma of the Cauda Equina in a 5-Year-Old Boy

Masashi Uehara,Jun Takahashi,Keijiro Mukaiyama,Shugo Kuraishi,Masayuki Shimizu,Shota Ikegami,Toshimasa Futatsugi,Kenji Sano,Kazuhiro Hongo,Hiroyuki Kato 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.6

Myxopapillary ependymoma in childhood typically occurs in the central nervous system. There are few surgical cases of myxopapillary ependymoma of the cauda equina in children. We report a case of myxopapillary ependymoma of the cauda equina in a 5-yearold boy, who presented with leg pain and abnormal gait. Subtotal resection surgery was performed. Following the subtotal tumor resection, follow-up magnetic resonance imaging evaluation showed a recurrent tumor. As a result, we performed a second subtotal tumor resection and followed with postoperative radiation therapy. No further evidence of the disease has been noted elsewhere in the patient in over ten years of follow-up. Myxopapillary ependymoma of the cauda equina in a young boy was improved by subtotal tumor resection and postoperative radiation therapy.

Mid-Term Results of Computer-Assisted Cervical Pedicle Screw Fixation

Masashi Uehara,Jun Takahashi,Keijiro Mukaiyama,Shugo Kuraishi,Masayuki Shimizu,Shota Ikegami,Toshimasa Futatsugi,Nobuhide Ogihara,Hiroyuki Hashidate,Hiroki Hirabayashi,Hiroyuki Kato 대한척추외과학회 2014 Asian Spine Journal Vol.8 No.6

Study Design: A retrospective study. Purpose: The present study aimed to evaluate mid-term results of cervical pedicle screw (CPS) fixation for cervical instability. Overview of Literature: CPS fixation has widely used in the treatment of cervical spinal instability from various causes; however, there are few reports on mid-term surgical results of CPS fixation. Methods: Record of 19 patients who underwent cervical and/or upper thoracic (C2–T1) pedicle screw fixation for cervical instability was reviewed. The mean observation period was 90.2 months. Evaluated items included Japanese Orthopaedic Association (JOA) score and C2–7 lordotic angle before surgery and at 5 years after surgery. Postoperative computerized tomography was used to determine the accuracy of screw placement. Visual analog scale (VAS) for neck pain and radiological evidence of adjacent segment degeneration (ASD) at the 5-year follow-up were also evaluated. Results: Mean JOA score was significantly improved from 9.0 points before surgery to 12.8 at 5 years after surgery (p =0.001). The C2–7 lordotic angle of the neutral position improved from 6.4° to 7.8° at 5 years after surgery, but this was not significant. The major perforation rate was 5.0%. There were no clinically significant complications such as vertebral artery injury, spinal cord injury, or nerve root injury caused by any screw perforation. Mean VAS for neck pain was 49.4 at 5 years after surgery. The rate of ASD was 21.1%. Conclusions: Our mid-term results showed that CPS fixation was useful for treating cervical instability. Severe complications were prevented with the assistance of a computed tomography-based navigation system.

Mini Open Foraminotomy for Cervical Radiculopathy: A Comparison of Large Tubular and TrimLine Retractors

Masashi Uehara,Jun Takahashi,Shugo Kuraishi,Masayuki Shimizu,Shota Ikegami,Toshimasa Futatsugi,Kaoru Aoki,Keijiro Mukaiyama,Nobuhide Ogihara,Hiroyuki Hashidate,Hiroki Hirabayashi,Hiroyuki Kato 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.4

Study Design: Retrospective chart review. Purpose: A comparison of mini open foraminotomy (MOF) for cervical radiculopathy using either large tubular (LT) or TrimLine (TL) retractors. Overview of Literature: Posterior foraminotomy relieves compression of the cervical nerve root in radiculopathy patients. However, invasion of the paravertebral muscle may cause major problems in these patients. To address these problems, we performed MOF. Methods: Twenty cervical radiculopathy patients (16 male and 4 female) who underwent MOF between May 2004 and August 2011 were assigned to LT and TL groups. Each group contained 10 subjects. Surgical and clinical outcomes were compared. Results: The average operating time in the TL group was significantly shorter than that in the LT group. The final follow-up mean neck disability indices significantly improved compared to the preoperative values (LT group, 12.0±7.8 vs. 28.0±9.4; TL group, 6.0±5.9 vs. 21.9±10). The final follow-up neck pain visual analog scale (VAS) scores also decreased significantly from the preoperative of 8.0±1.5 and 2.5±2.5 to the final follow-up values of 2.2±2.2 and 1.0±2.5 in the LT and TL groups, respectively. The recovery rate for the neck pain VAS score was 70.0±31.9 in the LT group and 87.0±32.0 in the TL group, thus suggesting no significant difference between the two groups. Conclusions: MOF with the TL retractor is an easy and safe procedure. Furthermore, the use of the TL retractor allows for a minimally invasive and effective surgical treatment of cervical radiculopathy patients.

호박下胚軸의 生長에 미치는 Brassinolide의 影響

殷鍾旋(Eun J. S.),倉石 晉(Kuraishi S.) 한국원예학회 1986 한국원예학회 학술발표요지 Vol.4 No.1

Poster Session : PS 0332 ; Hematology : Malignant Lymphoma That Diagnosed from Gastric Biopsy

( Kazuhiko Natori ),( Daisuke Nagase ),( Susumu Ishihara ),( Yukitoshi Toyoda ),( Sakai ),( Motohiro Kato ),( Yasunobu Kuraishi ),( Kazuho Arai ),( Haruka Izumi ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Background: Primary malignant gastrointestinal lymphoma accounts for 1-4% of malignant gastrointestinal tumors. Herein, we report the results of our study on 32 patients diagnosed from biopsy of stomach. Methods: From 2003 to 2012, we intended for 466 patients whom malignant lymphoma. 32 patients were selected. All patients were followed up until death or untile December 2013. Survival was measured from the diagnosis of multiple cancer to time of death or last contact. Results: All cases are 32 cases, gender male 16 cases, female 16 cases. Median age is 68 years, performance status is grade 0 20 cases, grade 1 7 cases, 2 grade 1 case, 3 grade 1 case, grade4 3 cases. Pathological fi ndings, 31 cases are non-Hodgkin`s lymphoma, 1 case is adult T cell lymphoma. Immnochemical stain fi ndings, diffuse laerge B cell type 21 cases, MALT lymphoma 8 cases, T cell lymphoma 1 cases, unknown 1 case. Clinical stage by Ann aobor classifi cation, stage IV is 13 cases, and Lugno classifi cation, L-I 17 cases, L-II-1 1 case, L-II-2 1 case. About therapy, CHOP or CHO therapy 3 cases(because of HBV active infection), rituximab +CHOP therapy 15 cases, Radiation therapy 4 cases, CHOP therapy after radiation therapy 2 cases, CHOP therapy after total gastrectomy 2 cases Eradication alone 1 case, chemotherapy ( CHOP therapy ) after eradication 1 case. Median survival time is not reached, 5 years survival rate is 66. 7%. At last December 2013, surviver is 23 cases, dead is 9 cases. Conclusions: The benefits of surgical treatment include decreased tumor amount by resection of local and regional lymph nodes, and more accurate diagnosis of the disease stage. However, we consider that the disadvantages of the majority of the recent therapies can be avoided by performing endoscopic examination and improving diagnostic imaging.