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JaLCDOI 10.18926/AMO/55669
FullText URL 72_1_85.pdf
Author Kosaki, Yoshinori| Yumoto, Tetsuya| Naito, Hiromichi| Tsuboi, Nobushige| Kameda, Masahiro| Hirano, Masayuki| Morizane, Yuki| Senoo, Takaya| Tokuyama, Eijirou| Nakao, Atsunori|
Abstract Traumatic eyeball luxation is a rare clinical condition with a dramatic presentation. Here, we describe a unique case of traumatic globe luxation and complete optic nerve transection caused by heavy object compression. A 45-year-old male automobile mechanic was injured when a truck slipped from its supports, crushing his head and face. On arrival, his right eyeball was obviously displaced anteriorly and he had no light perception. Computed tomography revealed complex frontal bone and facial fractures with underlying brain contusion in addition to complete transection of the right optic nerve. The patient was successfully treated using a multidisciplinary approach.
Keywords globe luxation optic nerve avulsion traumatic brain injury facial trauma
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 85
End Page 88
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463945
JaLCDOI 10.18926/AMO/55668
FullText URL 72_1_81.pdf
Author Otani, Hiroki| Makihara, Shigeki|
Abstract Internal hernia related to paracecal hernia is a rare disease and is difficult to confirm by preoperative diagnosis. We recently encountered a case of an 83-year-old woman who had lower abdominal pain in her right quadrant. Based on physical findings and CT findings she was diagnosed as having small bowel obstruction by internal hernia around the cecum. She underwent emergency operation with laparoscopic surgery and was diagnosed with a paracecal hernia and treated laparoscopically. After we dissected the ventral wall of the hernia sac and enlarged the hernia orifice, we reduced the trapped small intestine into the abdominal space. We determined that the herniated portion of the small intestine was not necrotic and therefore did not resect it. Although paracecal hernia is a rare internal hernia, physicians should be aware of it as a differential diagnosis for small bowel obstruction because of its rapid progression to strangulation and necrosis. We highlight the importance of recognizing CT findings of paracecal internal hernia. Laparoscopy was effective both for making a definitive diagnosis and treating paracecal hernia with relatively little invasion.
Keywords paracecal hernia laparoscopic surgery internal hernia small bowel obstruction
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 81
End Page 84
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463944
JaLCDOI 10.18926/AMO/55667
FullText URL 72_1_77.pdf
Author Watanabe, Kenya| Fukuzawa, Takuma| Mitsui, Katsuhiro|
Abstract Schwannoma is the most common tumor of the peripheral nerve sheath. However, there have been few reports on schwannoma of the posterior tibial nerve causing tarsal tunnel syndrome. We report on a 60-year-old man with tarsal tunnel syndrome caused by a schwannoma of the posterior tibial nerve, which was first diagnosed as a ganglion cyst. After enucleation of this tumor, the patient was asymptomatic and had no related sequelae except for minor numbness in the plantar aspects of his digits. Although schwannoma of the posterior tibial nerve is rare, it should be considered even if a ganglion is clinically suspected.
Keywords tarsal tunnel syndrome schwannoma posterior tibial nerve
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 77
End Page 80
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463943
JaLCDOI 10.18926/AMO/55666
FullText URL 72_1_73.pdf
Author Umakoshi, Michiari| Yasuhara, Takao| Toyoshima, Atsuhiko| Sasada, Susumu| Kusumegi, Akira| Morimoto, Jun| Kin, Kyohei| Tomita, Yousuke| Date, Isao|
Abstract The spinal extradural arachnoid cyst is a rare entity. Obtaining the correct diagnosis and detecting the fistula location are critical for providing effective treatment. A 41-year-old man had numbness in the soles of his feet for 2 years with accompanying gait disturbance, and a defecation disorder. Computed tomography myelography performed at another hospital revealed an epidural arachnoid cyst from Th11 to L2. He received a subarachnoid-cyst shunt at the rostral part of the cyst. However, his symptoms worsened and he was admitted to our hospital. Neuroradiological investigations revealed the correct location of the fistula at the level of Th12. We performed partial removal of the cyst wall with fistula closure via right hemilaminectomy of Th11 and 12. The complete closure of the fistula was confirmed by intrathecal infusion of artificial cerebrospinal fluid through the shunt tube. The shunt tube was removed with the sutures. The patient’s symptoms improved, although numbness remained in his bilateral heels. There has been no recurrence in 15 months since the surgery. Fistula closure may work as a balanced therapeutic strategy for spinal extradural arachnoid cyst, and intrathecal cerebrospinal fluid infusion is useful for the confirmation of complete fistula closure.
Keywords fistula closure intrathecal infusion microscopic surgery preoperative evaluation recurrence
Amo Type Case Report
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 73
End Page 76
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463942
JaLCDOI 10.18926/AMO/55665
FullText URL 72_1_67.pdf
Author Watanabe, Akihisa| Ono, Qana| Nishigami, Tomohiko| Hirooka, Takahiko| Machida, Hirohisa|
Abstract It has been unclear whether the risk factors for rotator cuff tears are the same at all ages or differ between young and older populations. In this study, we examined the risk factors for rotator cuff tears using classification and regression tree analysis as methods of nonlinear regression analysis. There were 65 patients in the rotator cuff tears group and 45 patients in the intact rotator cuff group. Classification and regression tree analysis was performed to predict rotator cuff tears. The target factor was rotator cuff tears; explanatory variables were age, sex, trauma, and critical shoulder angle≥35°. In the results of classification and regression tree analysis, the tree was divided at age 64. For patients aged≥64, the tree was divided at trauma. For patients aged<64, the tree was divided at critical shoulder angle≥35°. The odds ratio for critical shoulder angle≥35° was significant for all ages (5.89), and for patients aged<64 (10.3) while trauma was only a significant factor for patients aged≥64 (5.13). Age, trauma, and critical shoulder angle≥35° were related to rotator cuff tears in this study. However, these risk factors showed different trends according to age group, not a linear relationship.
Keywords rotator cuff tears risk factor critical shoulder angle trauma classification and regression tree analysis
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 67
End Page 72
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463941
JaLCDOI 10.18926/AMO/55664
FullText URL 72_1_61.pdf
Author Sakamoto, Ai| Kamada, Yasuhiko| Kubo, Kotaro| Hasegawa, Toru| Kotani, Sayoko| Nakatsuka, Mikiya| Hiramatsu, Yuji|
Abstract Establishing whether miscarriages result from fetal aneuploidy or other factors is important for treating recurrent pregnancy loss. We examined the relationship between fetal heart rate (FHR) before miscarriage in the early first trimester and fetal karyotype, analyzing 223 pregnant women with recurrent pregnancy loss. Among the pregnancies, 110 resulted in live births regarded as normal karyotype (the Norm-group). The other 113 pregnancies ended in miscarriage, and we categorized them into groups based on fetal karyotype, determined by chorionic villus sampling: the Misc-NK (normal karyotype) group, n=35 euploid cases; the Misc-CA1 (chromosomal abnormality) group, n=18 cases of aneuploidy with trisomies 13/18/21, Turner’s syndrome, or Klinefelter’s syndrome; and the Misc-CA2 subgroup, n=60 cases of other aneuploidies excluding those in the Misc-CA1 group. We compared the groups’ regression line slopes and intercepts for FHR by an analysis of covariance. The FHRs of the Norm, Misc-NK and Misc-CA1 groups increased from 36 to 49 days after fertilization, but did not significantly differ across these groups. The Misc-CA2 group’s FHR did not increase and significantly differed from the other three groups (p<0.01). These results suggest that the absence of an increase in FHR in early pregnancy may indicate the presence of chromosomal abnormalities causing miscarriage.
Keywords aneuploidy chorionic villi fetal heart rate recurrent pregnancy loss
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 61
End Page 66
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463940
JaLCDOI 10.18926/AMO/55663
FullText URL 72_1_53.pdf
Author Yoshimura, Yuuki| Kuroda, Masahiro| Sugiantoc, Irfan| Bamgbosec, Babatunde O.| Miyahara, Kanae| Ohmura, Yuichi| Kurozumi, Akira| Matsushita, Toshi| Ohno, Seiichiro| Kanazawa, Susumu| Asaumi, Junichi|
Abstract Readout-segmented echo-planar imaging (RESOLVE) is a multi-shot echo-planar imaging (EPI) modality with k-space segmented in the readout direction. We investigated whether RESOLVE decreases the distortion and artifact in the phase direction and increases the signal-to-noise ratio (SNR) in phantoms image taken with 3-tesla (3T) MRI versus conventional EPI. We used a physiological saline phantom and subtraction mapping and observed that RESOLVE’s SNR was higher than EPI’s. Using RESOLVE, the combination of a special-purpose coil and a large-loop coil had a higher SNR compared to using only a head/neck coil. RESOLVE’s image distortioas less than EPI’s. We used a 120 mM polyethylene glycol phantom to examine the phase direction artifact.vThe range where the artifact appeared in the apparent diffusion coefficient (ADC) image was shorter with RESOLVE compared to EPI. We used RESOLVE to take images of a Jurkat cell bio-phantom: the cell-region ADC was 856×10−6mm2/sec and the surrounding physiological saline-region ADC was 2,951×10−6mm2/sec. The combination of RESOLVE and the 3T clinical MRI device reduced image distortion and improved SNR and the identification of accurate ADC values due to the phase direction artifact reduction. This combination is useful for obtaining accurate ADC values of bio-phantoms.
Keywords RESOLVE bio-phantom 3 tesla MRI apparent diffusion coefficient diffusion-weighted imaging
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 53
End Page 59
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463939
JaLCDOI 10.18926/AMO/55662
FullText URL 72_1_47.pdf
Author Ako, Soichiro| Nakamura, Shinichiro| Nouso, Kazuhiro| Dohi, Chihiro| Wada, Nozomu| Morimoto, Yuki| Takeuchi, Yasuto| Yasunaka, Tetsuya| Kuwaki, Kenji| Onishi, Hideki| Ikeda, Fusao| Shiraha, Hidenori| Takaki, Akinobu| Okada, Hiroyuki|
Abstract Transcatheter arterial chemoembolization (TACE) is often performed before radiofrequency ablation (RFA) for the treatment of early-stage hepatocellular carcinoma (HCC). TACE prior to RFA can expand the ablated area and reduce the tumor size, facilitating complete ablation. However, the factors correlated with size reduction remain uncertain. The aim of this study was to identify the factors associated with size reduction by TACE and develop a formula to predict the reduction rate. A total of 100 HCC patients treated with TACE followed by RFA at least 20 days later were enrolled. The tumor size was measured at the time of TACE and RFA, and correlations between the reduction rate and 13 clinical factors were examined. A formula to predict the reduction rate was built using the factors obtained by the analysis. Reduction in the tumor size was observed in 69 nodules, and the median reduction rate was 16.2%. A multivariate regression analysis revealed that a large tumor size (p< 0.01) and a long interval between the therapies (p= 0.01) were factors for a high tumor reduction rate, with tumor size more strongly related to the degree of reduction. A size reduction of more than 10% can be expected by waiting 20 days after TACE when the size of the tumor at TACE is over 25 mm in diameter. The tumor size
Keywords hepatocellular carcinoma transcatheter arterial chemoembolization radiofrequency ablation interval size reduction
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 47
End Page 52
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463938
JaLCDOI 10.18926/AMO/55661
FullText URL 72_1_39.pdf
Author Hosogi, Mika| Morizane, Yuki| Shiode, Yusuke| Doi, Shinichiro| Kumase, Fumiaki| Kimura, Shuhei| Hosokawa, Mio| Hirano, Masayuki| Toshima, Shinji| Takahashi, Kosuke| Fujiwara, Atsushi| Shiraga, Fumio|
Abstract To investigate the effectiveness of a treat-and-extend regimen (TAE) of intravitreal ranibizumab injections (IVR) for macular edema (ME) due to branch retinal vein occlusion (BRVO). We retrospectively examined 35 eyes of 35 patients with ME due to BRVO who underwent TAE for 1 year. Patients whose treatment interval extended to 12 weeks were switched to a pro re nata regimen (PRN; TAE to PRN group), while TAE was continued for patients whose treatment interval was less than 12 weeks (continued TAE group). Changes in best-corrected visual acuity (BCVA), central retinal thickness (CRT), and predictive factors for inclusion in the TAE to PRN group were analyzed. BCVA and CRT both improved significantly at 1 year compared with baseline (p<0.001). Sixteen eyes (45.7%) were included in the TAE to PRN group, while 19 eyes (54.3%) were included in the continued TAE group. BCVA in the TAE to PRN group was significantly better than that in the continued TAE group at 1 year (p=0.047). BCVA at baseline and macular BRVO were significant predictive factors for inclusion in the TAE to PRN group. TAE was effective for improving BCVA and CRT. The TAE to PRN group showed significantly better prognosis.
Keywords branch retinal vein occlusion macular edema anti-vascular endothelial growth factor ranibizumab treat-and-extend regimen
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 39
End Page 45
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463937
Web of Science KeyUT 000426542800006
NAID 120006398861
JaLCDOI 10.18926/AMO/55660
FullText URL 72_1_31.pdf
Author Owari, Yutaka| Miyatake, Nobuyuki| Kataoka, Hiroaki|
Abstract Few studies examined the relationship between social participation, physical activity and psychological distress in elderly people. Here we examined these relationships in apparently healthy elderly people. After exclusion of subjects who dropped out or did not meet enrollment criteria, the data of 86 subjects (apparently healthy elderly embers at a college health club; 25 males, 61 females) from July 20 to September 10, 2016 were used. We evaluated each subject’s psychological distress using the K6 questionnaire, social participation by a self-completed questionnaire, and physical activity level by a triaxial accelerometer (7 consecutive days). The K6 scores were significantly correlated with social participation in the total series and the women. The K6 scores of the subjects who had engaged in social participation (1.847±2.231) were significantly lower (better) than those of the subjects who had not (6.714±5.014). Both exercise limitation and social participation were significant predictors of the K6 scores. Our findings indicate that psychological distress in apparently healthy elderly people is not associated with physical activity, but is associated with social participation. Our results demonstrate that in healthy elderly people, participating in a social activity can help improve psychological distress.
Keywords elderly people physical activity psychological distress social participation
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 31
End Page 37
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463936
JaLCDOI 10.18926/AMO/55659
FullText URL 72_1_23.pdf
Author Fujiia, Masayoshi| Takata, Katsuyoshi| Chuang, Shih-Sung| Miyata-Takata, Tomoko| Ando, Midori| Sato, Yasuharu| Yoshino, Tadashi|
Abstract The gastrointestinal (GI) tract is the most frequently involved site of extranodal non-Hodgkin lymphomas, and diffuse large B-cell lymphoma (DLBCL) is the most common subtype occurring in the GI tract. TNFAIP3 (A20) genetic alterations were reported to be involved in DLBCL’s pathogenesis and a portion of GI-DLBCL cases harbor this alteration. However, the frequency and clinicopathological relations focusing on small and large intestinal DLBCL are unclear. Here, we examined A20 deletion and protein expression and analyzed the clinicopathological features of 52 cases of primary intestinal DLBCL. The most frequently involved site was the ileocecal region (75%), followed by small bowel (13.5%) and large intestine. Immunohistochemically, the ileocecal cases expressed BCL6 (p=0.027) and MUM1 (p=0.0001) significantly more frequently than the small intestinal cases. Six of 47 cases (13%) had A20 heterozygous deletion, whereas all 6 heterozygously deleted cases had detectable A20 protein expression. In summary, A20 abnormality was less prevalent among intestinal DLBCLs with some discordancy between gene deletion and protein expression. Although the A20 alteration status did not affect any clinicopathological characteristics in this series, further studies exploring alterations of A20 and other NF-κB components in primary intestinal DLBCL are needed.
Keywords primary intestinal diffuse large B-cell lymphoma cell of origin A20 TNFAIP3 heterozygous deletion
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 23
End Page 30
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463935
JaLCDOI 10.18926/AMO/55658
FullText URL 72_2_203.pdf
Author Sonekatsu, Mayumi| Sonohata, Motoki| Kitajima, Masaru| Kawano, Shunsuke| Mawatari, Masaaki|
Abstract In patients with poliomyelitis, degenerative arthritis of the hip may be encountered in the paralytic or normal contralateral limb because of leg length discrepancy, pelvic obliquity, or severe deformities of the affected hip. Although total hip arthroplasty (THA) is one of the most common orthopedic procedures, there are few reports of THA in adult patients with residual poliomyelitis. From March 2001 to January 2011, 5 patients with residual poliomyelitis (6 hips) underwent THA using uncemented implants at our hospital. We retrospectively evaluated the Japanese Orthopedic Association (JOA) hip rating score, complications, and radiographs. All five patients’ follow-up information was available: 4.5 years minimum, 8.4 years average, range 4.5-15 years. Surgery was done at the same side of the paralytic limb in 2 hips and contralateral to the paralytic limb in four hips. All patients had pain relief and improvement in function; JOA hip rating score improved significantly from the mean of 45 preoperatively to 78 at the last follow-up (p=0.0313). There was no loosening or osteolysis in this series, and no cases of dislocation, infection or nerve palsy. These findings can contribute to decisions regarding treatment for arthritic hips in adults with residual poliomyelitis.
Keywords total hip arthroplasty poliomyelitis residual neuromuscular disease complication
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 17
End Page 22
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463934
Web of Science KeyUT 000426542800003
Related Url isReplacedBy http://doi.org/10.18926/AMO/55864
JaLCDOI 10.18926/AMO/55657
FullText URL 72_1_9.pdf
Author Kataoka, Hiroaki| Miyatake, Nobuyuki| Murao, Satoshi| Tanaka, Satoshi|
Abstract Resistance training is effective against type 2 diabetes (T2DM), but the effect of resistance training on toe pinch force (TPF) is unknown. Here we investigated the effect of short-term toe resistance training on TPF in patients with T2DM, in a prospective, parallel-group, single-blind, randomized controlled trial. Twelve patients with T2DM who were hospitalized to improve glycemic control were enrolled. The patients were randomly allocated to the intervention (n=6) and control (n=6) groups. The intervention group performed traditional aerobic exercise and 4 newly developed toe-resistance training exercises. The control group performed aerobic exercise only. After 2 weeks of the exercise intervention program, we evaluated anthropometric parameters, clinical parameters, motor function, and muscle parameters in each patient. After the exercise intervention program, the TPF and toe muscle quality, isometric knee extension force, and knee muscle quality were significantly higher in the intervention group compared to the control group. Two weeks of toe-resistance training significantly increased the TPF in the T2DM patients. Toe resistance training is thus recommended in clinical practice for patients with T2DM.
Keywords randomized controlled trial type 2 diabetes mellitus toe resistance training toe pinch force toe muscle quality
Amo Type Original Article
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 9
End Page 15
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463933
JaLCDOI 10.18926/AMO/55656
FullText URL 72_1_1.pdf
Author Saito, Yukihiro| Nakamura, Kazufumi| Ito, Hiroshi|
Abstract The number of permanent pacemaker implantations has been increasing due to the aging of populations worldwide and the increase in the numbers of patients with heart diseases. Commercially available mechanical pacemakers are very useful but still have some problems including short battery life, a risk of infection, the absence of physiological autonomic responsiveness, metal allergy, and electronic interference. A biological pacemaker may resolve these problems and regenerate the cardiac pacemaker. Cell-based therapy and gene therapy have been addressed with the goal of solving the challenges of biological pacemaker. However, the clinical application of a biological pacemaker has not yet been realized. Here we discuss the types of cells that can be used for a biological pacemaker and the problems that remain regarding the clinical applications of cell-based therapy.
Keywords cell therapy pluripotent stem cells cardiomyocytes biological pacemaker hyperpolarization activated cyclic nucleotide gated potassium channel 4
Amo Type Review
Publication Title Acta Medica Okayama
Published Date 2018-02
Volume volume72
Issue issue1
Publisher Okayama University Medical School
Start Page 1
End Page 7
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language English
Copyright Holders CopyrightⒸ 2018 by Okayama University Medical School
File Version publisher
Refereed True
PubMed ID 29463932
FullText URL PhysRevA_82_023624.pdf
Author Mizushima, T.| Machida, K.|
Note This is an article published by American Physical Society|
Published Date 2010-08
Publication Title Physical Review A
Volume volume82
Issue issue2
Publisher American Physical Society
Start Page 023624
ISSN 1050-2947
NCID AA10764867
Content Type Journal Article
language English
OAI-PMH Set 岡山大学
Copyright Holders American Physical Society
File Version publisher
DOI 10.1103/PhysRevA.82.023624
Web of Science KeyUT 000281405500012
Related Url isVersionOf https://doi.org/10.1103/PhysRevA.82.023624
FullText URL srfa_107_contents_eng.pdf
Author Faculty of Agriculture, Okayama University|
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2018-02-01
Volume volume107
ISSN 2186-7755
language Japanese
File Version publisher
FullText URL srfa_107_colophon.pdf
Author Faculty of Agriculture, Okayama University|
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2018-02-01
Volume volume107
ISSN 2186-7755
language Japanese
File Version publisher
Title Alternative The List of Published by Members of the Faculty From January to December 2017
FullText URL srfa_107_025_039.pdf
Author Faculty of Agriculture, Okayama University|
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2018-02-01
Volume volume107
Start Page 25
End Page 39
ISSN 2186-7755
language Japanese
File Version publisher
Title Alternative Non-surgical Transfer Method of Elongating Bovine Conceptus
FullText URL srfa_107_019_024.pdf
Author Faculty of Agriculture, Okayama University|
Abstract  The objectives of the present study were to establish a non-surgical transfer method for elongating bovine conceptuses and to combine this method with biopsy and sexing. Bovine conceptuses were recovered from donor cows on day 13-14 of the estrus cycle. In experiment 1, day 13 conceptuses were transferred to recipient cows using a standard day 7 embryo transfer (ET) method. The pregnancy rate of day 13 conceptus transfer (CT) is comparable to that of day 7 ET. In experiment 2, day 14 conceptuses were transferred using modified methods (balloon catheters or ET guns with modified sheaths). Using the standard ET method, no pregnancies were obtained;however, when balloon catheters or ET guns with modified sheaths were used, the pregnancy rates after CT were 48.0% and 44.8%, respectively. In experiment 3, day 14 conceptuses were biopsied without a micromanipulator, sexed using the loop-mediated isothermal amplification (LAMP) method, and transferred to recipient cows. The pregnancy rate of biopsied conceptuses was 46.2% and did not differ significantly from that of unbiopsied with conceptuses. Moreover, all pregnant cows transferred conceptuses following biopsy and sexing delivered calves with the expected sexes. These results suggested that the non-surgical bovine conceptus transfer (CT) method was comparable to day 7 ET, and that this technique enables biopsy and sexing without expensive equipment such as a micromanipulator or specialized skills.
Keywords conceptus biopsy
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2018-02-01
Volume volume107
Start Page 19
End Page 24
ISSN 2186-7755
language Japanese
File Version publisher
Title Alternative Virus-induced gene silencing in Prunus fruit tree species with the Apple latent spherical virus vector
FullText URL srfa_107_011_017.pdf
Author Kawai, Takashi|
Abstract Virus-induced gene silencing (VIGS) has been used as a rapid and effective tool for functional analysis of genes in various plants, including woody fruit tree species. In this study, we attempted to develop a VIGS-based gene evaluation system for seven Prunus species, including apricot (P. armeniaca L.), sweet cherry (P. avium L.), almond [P. dulcis (Mill.) D. A. Webb.], peach (P. persica Batsch), Japanese apricot (P. mume Siebold & Zucc.), Japanese plum (P. salicina Lindl.), and European plum (P. domestica L.), with the Apple latent spherical virus (ALSV) vectors. ALSV vectors carrying part of the apricot PHYTOENE DESATURASE (PDS) gene sequence were amplified in Nicotiana benthamiana, and inoculated into the cotyledons of Prunus seedlings by particle bombardment. Typical PDS-silenced phenotypes, characterized by uniform discoloration of the upper leaves, were observed in sweet cherry and some cultivars of apricot and almond several weeks after inoculation. In contrast, attempted ALSV infections of Japanese apricot, Japanese plum, European plum, and the other cultivars of apricot and almond were unsuccessful. Furthermore, although the infection rate of ALSV in peach was high, severe viral infection symptoms were observed in the infected leaves. These results collectively suggested that the efficiency of ALSV infection and VIGS could vary depending on species and/or cultivar in Prunus. The possible use of the ALSV-mediated VIGS system for functional analysis of genes in Prunus is discussed.
Keywords gene evaluation system post-transcriptional gene silencing virus vector
Publication Title Scientific Reports of the Faculty of Agriculture, Okayama University
Published Date 2018-02-01
Volume volume107
Start Page 11
End Page 17
ISSN 2186-7755
language Japanese
File Version publisher