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Iwata H, Takada N, Kuroyanagi G, Yamamoto N, Usami T, Sekiya I, Murakami H. Endosteal strut using a hydroxyapatite/poly-L-lactide mesh tube with a proximal humeral locking plate for the treatment of proximal humeral fractures. Eur J Orthop Surg Traumatol 2024; 34:217-223. [PMID: 37421450 DOI: 10.1007/s00590-023-03638-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/25/2023] [Indexed: 07/10/2023]
Abstract
PURPOSE Proximal humeral fractures cause large intramedullary bone defects after humeral-head reduction. Hydroxyapatite/poly-L-lactide (HA/PLLA) materials are widely used for various fractures. However, the efficacy of endosteal strut using a HA/PLLA mesh tube (ES-HA/PLLA) with a locking plate for treating proximal humeral fractures was not reported. The purpose of this study is to examine the efficacy of ES-HA/PLLA with a proximal humeral locking plate in proximal humeral fractures. METHODS Seventeen patients with proximal humeral fractures treated using ES-HA/PLLA with a locking plate from November 2017 to November 2021 were evaluated. The range of motion of the shoulder and postoperative complications were assessed at the final follow-up. Radiographs were evaluated to assess bone union and loss of reduction by measuring humeral-head height (HHH) and humeral neck-shaft angle (NSA). RESULTS The average flexion and external rotation of the shoulder at the final follow-up were 137° (range, 90-180°) and 39° (range, - 10 to 60°), respectively. All fractures were united. The average HHH and NSA just after the surgery and final follow-up were 12.5 mm and 11.6 mm and 129.9° and 127.4°, respectively. Two patients presented screw perforation of the humeral head. One patient underwent implant removal due to infection. Avascular necrosis of the humeral head was observed in one patient with arthritis mutilans. CONCLUSIONS The use of ES-HA/PLLA with a proximal humeral locking plate resulted in bone union in all patients and prevented postoperative loss of reduction. ES-HA/PLLA is one of the treatment options for proximal humeral fractures.
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Affiliation(s)
- Hidetoshi Iwata
- Department of Orthopedic Surgery, Kainan Hospital Aichi Prefectural Welfare Federation of Agricultural Cooperatives, Yatomi, Japan
| | - Naoya Takada
- Department of Orthopedic Surgery, Kainan Hospital Aichi Prefectural Welfare Federation of Agricultural Cooperatives, Yatomi, Japan
| | - Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan.
| | - Norio Yamamoto
- Department of Orthopedic Surgery, Miyamoto Orthopedic Hospital, Okayama, 773-8236, Japan
| | - Takuya Usami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
| | - Isato Sekiya
- Department of Orthopedic Surgery, Kainan Hospital Aichi Prefectural Welfare Federation of Agricultural Cooperatives, Yatomi, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8601, Japan
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Usami T, Takada N, Kosuwon W, Paholpak P, Tokunaga M, Iwata H, Hattori Y, Nagaya Y, Murakami H, Kuroyanagi G. A Lateral Fracture Line Affects Femoral Trochanteric Fracture Instability and Swing Motion of the Intramedullary Nail: A Biomechanical Study. JB JS Open Access 2024; 9:e23.00118. [PMID: 38352644 PMCID: PMC10860993 DOI: 10.2106/jbjs.oa.23.00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Background An unstable trochanteric femoral fracture is a serious injury, with a 1-year mortality rate of 5.4% to 24.9%, for which there is currently no standard treatment method. The lag screw insertion site is one of the primary contact areas between the cortical bone and an intramedullary nail. We hypothesized that a posterolateral fracture causes intramedullary nail instability when the posterolateral fracture line interferes with lag screw insertion. The purpose of the present study was to investigate the effect of posterolateral fracture line morphology on intramedullary nail stability by simulating unstable trochanteric femoral fractures with a posterolateral fracture fragment. Methods Eighteen custom-made synthetic osteoporotic bone samples were used in the present study. Nine samples had a posterolateral fracture line interfering with the lag screw insertion hole (Fracture A), and the other 9 had a fracture line 10 mm away from the hole (Fracture B). Cyclic loading (750 N) was applied to the femoral head 1,500 times. Movement of the end cap attached to the intramedullary nail was recorded. The amplitudes of motion in the coronal plane (coronal swing motion), sagittal plane (sagittal swing motion), and axial plane (total swing motion) were evaluated. The change in the neck-shaft angle was evaluated on photographs that were made before and after the test. Medial cortical displacement was measured before and after the test. Results Two Fracture-A samples were excluded because the amplitude of sagittal swing motion was too large. The mean values for coronal, sagittal, and total swing motion were 1.13 ± 0.28 mm and 0.51 ± 0.09 mm (p < 0.001), 0.50 ± 0.12 mm and 0.46 ± 0.09 mm (p = 0.46), and 1.24 ± 0.24 mm and 0.69 ± 0.11 mm (p < 0.001) for Fractures A and B, respectively. The mean neck-shaft angle change was -8.29° ± 2.69° and -3.56° ± 2.35° for Fractures A and B, respectively (p = 0.002). The mean displacement of the medial cortex was 0.38 ± 1.12 mm and 0.12 ± 0.37 mm for Fractures A and B, respectively (p = 0.57). Conclusions This study showed that an unstable trochanteric femoral fracture with a posterolateral fracture line that interferes with the lag screw insertion holes is a risk factor for increased intramedullary nail instability.
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Affiliation(s)
- Takuya Usami
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
- Department of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi, Japan
| | - Naoya Takada
- Department of Orthopaedic Surgery, Kainan Hospital, Yatomi, Aichi, Japan
| | - Weerachai Kosuwon
- Department of Orthopaedics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Permsak Paholpak
- Department of Orthopaedics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Masami Tokunaga
- Department of Orthopaedic Surgery, Fukuoka Orthopaedic Hospital, Fukuoka, Fukuoka, Japan
| | - Hidetoshi Iwata
- Department of Orthopaedic Surgery, Kainan Hospital, Yatomi, Aichi, Japan
| | - Yusuke Hattori
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
- Department of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi, Japan
| | - Yuko Nagaya
- Department of Orthopaedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
| | - Gen Kuroyanagi
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi, Japan
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Takeda T, Takahashi K, Danno K, Nakamichi I, Takada N, Murao S, Yamamoto K, Higashiguchi M, Noguchi K, Toyoda Y, Nakane S, Yamamoto H, Hirao T, Oka Y. [A Case of Right Hemicolectomy for Inflammatory Myofibroblastic Tumor Arising in the Right Transverse Colon]. Gan To Kagaku Ryoho 2023; 50:1474-1476. [PMID: 38303312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The patient was a 21-year-old male. He presented with right lower abdominal pain and showed tenderness in the same area. An abdominal contrast-enhanced CT examination revealed a 45 mm tumor that continuously stained in the right transverse colon. The patient presented with tenderness and rebound tenderness. Due to a suspected submucosal tumor, laparotomy was performed and an elastic hard tumor of 5 cm in size was found on the serous membrane side of the right transverse colon. As malignancy could not be ruled out, a right hemicolectomy with lymph node dissection was performed. The pathological diagnosis was an inflammatory myofibroblastic tumor(IMT), characterized by the proliferation of spindle- shaped spindle-shaped fibroblast-like cells with inflammatory cell infiltration. As of 9 years post-surgery, there has been no recurrence. However, long-term surveillance is necessary.
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Hirao T, Yamamoto K, Oka Y, Takada N, Murao S, Higashiguchi M, Takeda T, Noguchi K, Danno K, Toyoda Y, Nakane S, Yamamoto H. [Long-Term Survival of a Patient with Advanced Antral Gastric Cancer Successfully Treated with Multidisciplinary Therapy]. Gan To Kagaku Ryoho 2023; 50:1560-1562. [PMID: 38303341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
We report the case of long-term survival of a patient with advanced antral gastric cancer with multiple paraaortic lymph nodes metastasis who was successfully treated with multidisciplinary therapy. A 70-year-old female was admitted to our hospital complaining of vomiting. Upper gastrointestinal endoscopy revealed a Type 3 tumor in the gastric antrum. Computed tomography(CT)showed a marked decrease in the size of the primary gastric tumor and lymph nodes after 9 courses of mFOLFOX6 therapy. Subsequently, 7 courses of paclitaxel plus ramucirumab(PTX plus Rmab)therapy and 10 courses of nivolumab therapy were administered. After nivolumab therapy, marked shrinkage of the lymph nodes was observed on CT. Distal gastrectomy with D2(+ #16a2+b1)lymph node dissection was performed. The pathological finding was ypT0N1M0 with a Grade 3 effect of the chemotherapy. After 6 months of adjuvant chemotherapy with S-1, CT revealed supraclavicular lymph node metastases. After 4 courses of nivolumab therapy, CT showed a marked increase in the size of the lymph node. Consequently, the regimen was changed to irinotecan. After 16 courses of irinotecan therapy, CT showed a marked shrinkage in the size of the lymph node. The patient is currently alive with no signs of recurrence for 5 years, ie, since the initiation of the multidisciplinary therapy.
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Yamamoto K, Yamasaki M, Hirao T, Oka Y, Nakane S, Takada N, Murao S, Higashiguchi M, Takeda T, Noguchi K, Danno K, Toyoda Y, Yamamoto H. [An Experience of Multidisciplinary Treatment for Advanced Esophageal Cancer with Tumor Perforation during Preoperative Chemotherapy]. Gan To Kagaku Ryoho 2023; 50:1578-1580. [PMID: 38303347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Perforation of esophageal cancer is one of the fatal oncologic emergencies, and a prompt and accurate treatment strategy is required. Here, we report a case of advanced esophageal cancer that had perforated during preoperative chemotherapy and was successfully resected with multidisciplinary treatment. The prognosis of perforated esophageal cancer can be expected to improve by multidisciplinary treatment appropriately combining initial treatment for infection control and subsequent cancer treatment.
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Takeda E, Toyoda Y, Yamamoto H, Nakamichi I, Sugano Y, Takada N, Murao S, Yamamoto K, Higashiguchi M, Takeda T, Noguchi K, Danno K, Nakane S, Hirao T, Oka Y. [A Case of Surgery for Skin Metastasis of Papillary Thyroid Carcinoma in a Very Elderly Patient to Improve the Quality of Life]. Gan To Kagaku Ryoho 2023; 50:1441-1443. [PMID: 38303301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The patient was a 100-year-old woman who underwent right lobe thyroidectomy for papillary thyroid cancer in another hospital around 1990. She developed local recurrence in 2010 and underwent anterior tracheal local recurrence resection in May 2017. Subsequently, metastases were confirmed in the lateral cervical lymph nodes, but the patient only received TSH suppression because of her advanced age. Multiple pulmonary metastases developed in November 2020 and supraclavicular lymph node metastases in July 2021, but the patient was under the care of a visiting physician on best supportive care. The patient was referred to our hospital in January 2022 due to the appearance of a cutaneous mass in the sternal incision area, which gradually increased in size. A well-mobile, well-defined, spherical mass was found in the sternotomy area. The maximum diameter was 19 mm. The cytological findings were consistent with cutaneous metastasis of papillary thyroid carcinoma. As the patient was elderly and had multiple pulmonary metastases, she was temporarily observed. However, by June 2022, the mass had increased from 19 mm to 33 mm with cutaneous discoloration. There was no tendency for multiple pulmonary metastases to grow during this period. The decision was made to operate in order to prevent a decline in quality of life due to self-destruction of the cutaneous metastasis. The tumor was removed under general anesthesia, including the cutaneous discoloration, and reconstructed with a rhomboid skin flap. Post-operatively, there was no local recurrence or significant increase in pulmonary metastases. It is suggested that resection of cutaneous metastasis of malignant tumors may be effective in preserving quality of life even in a 100-year-old elderly patient like the present case and should be considered as an indication.
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Iwata H, Takada N, Kuroyanagi G, Usami T, Sekiya I, Murakami H. Pin and Wire System Fixation for the Treatment of Comminuted Patella Fractures. Orthopedics 2023; 46:291-296. [PMID: 36921229 DOI: 10.3928/01477447-20230310-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
We describe the wiring technique and evaluate the radiographic and clinical outcomes of treatment with a pin and wire system (PWS) for comminuted patella fractures. From June 2013 to October 2018, 33 patients with comminuted patella fractures were treated using a PWS. Open reduction and internal fixation was performed with multiple pins and a wire. All patients were allowed full weight bearing without a brace. Radiographs were obtained to evaluate bone union, implant breakage, back-out of pins, and intra-articular gaps and step-off. Clinical outcomes and postoperative complications were assessed at final follow-up examination. All fractures were united. Thirteen cable wires in 13 patients were partially broken without displacement of fracture at an average of 7.4 months (range, 1-19 months) postoperatively. The average preoperative, postoperative, and final follow-up intra-articular gap and step-off were 11.7 mm, 0.5 mm, and 0.03 mm and 6.6 mm, 0.4 mm, and 0.2 mm, respectively. The average postoperative pin displacement was 0.1 mm (range, 0-0.8 mm). Deep infection was not observed after the surgery. The implant removal rate was 21% (7 of 33). Among these, the symptomatic implant removal rate was 9% (3 of 33). Additionally, 3 of 7 patients with implant removal had broken wires. The average flexion and extension of knee joints were 139.7° (range, 120°-150°) and -0.9° (range, -10° to 0°), respectively. A PWS prevents back-out of the pins and reduces intra-articular gaps and step-off distances to acceptable levels, even if the cable wire is partially broken. Therefore, a PWS is a good treatment option for comminuted patella fractures. [Orthopedics. 2023;46(5):291-296.].
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Usami T, Takada N, Iwata H, Sakai H, Hattori Y, Sekiya I, Ueki Y, Nagaya Y, Murakami H, Kuroyanagi G. A biomechanical analysis of the effect of hydroxyapatite augmentation for trochanteric femoral fractures. Exp Ther Med 2023; 25:256. [PMID: 37153894 PMCID: PMC10155252 DOI: 10.3892/etm.2023.11955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/09/2023] [Indexed: 05/10/2023] Open
Abstract
Hydroxyapatite (HA) augments are used to treat trochanteric femoral fractures. However, the efficacy of HA augmentation has not been fully described in trochanteric femoral fracture surgery. In total, 85 patients were enrolled in the present study; all had trochanteric femoral fractures between January 2016 and October 2020, 45 with HA (HA group) and 40 without HA (N group). The intraoperative lag screw insertion torque was directly measured and the amount of lag screw telescoping with and without HA augmentation after surgery was analyzed. Maximum lag screw insertion torque (max-torque), bone mineral density in the opposite femoral neck (n-BMD), tip apex distance (TAD) of the lag screw, radiographic findings including fracture union, the amounts of lag screw telescoping and occurrence of complications were evaluated. A total of 12 patients were excluded if they were aged under 60 years old, had ipsilateral surgery and disorders in the hip joint, TAD of the lag screw ≥26 mm on postoperative radiographs and had measurement errors. A total of 73 fractures could be analyzed: HA group (n=36) and N group (n=37). Max-torque/n-BMD ratios were higher in the HA group compared with in the N group (7.23±2.71 vs. 5.93±1.91 g/cm2·N·m; P=0.04). The amounts of lag screw telescoping in the HA group were smaller compared with the N group (1.41±2.00 vs. 2.58±2.34; P=0.05). Evaluation of screw insertion torque showed maximum screw insertion torque correlated well with n-BMD in both groups, HA (R=0.57; P<0.01) and N group (R=0.64; P<0.01). No correlation was found between maximum screw insertion torque and TAD in both groups, HA (R=-0.10; P=0.62) and N group (R=0.02; P=0.93). All fractures were radiographically united without any complications. These results support the effectiveness of HA augmentation, indicating higher resistance against rotational instability and reduced lag screw telescoping in trochanteric femoral fracture treatment.
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Affiliation(s)
- Takuya Usami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi 464-8547, Japan
| | - Naoya Takada
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Aichi 498-8502, Japan
| | - Hidetoshi Iwata
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Aichi 498-8502, Japan
| | - Hiroaki Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yusuke Hattori
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi 464-8547, Japan
| | - Isato Sekiya
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Aichi 498-8502, Japan
| | - Yoshino Ueki
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yuko Nagaya
- Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Aichi 464-8547, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Correspondence to: Dr Gen Kuroyanagi, Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
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Takeda T, Danno K, Fujino S, Nakamichi I, Takada N, Murao S, Yamamoto K, Higashiguchi M, Noguchi K, Toyoda Y, Nakane S, Yamamoto H, Hirao T, Oka Y. [A Case of Long-Term Survival with Tumor Resection and DOX plus DTIC Therapy for Desmoid Tumor after FAP Surgery]. Gan To Kagaku Ryoho 2023; 50:401-403. [PMID: 36927923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
The patient is a 22-year-old, female. She had a family history of familial adenomatous polyposis(FAP)and a prophylactic total colorectal resection was performed for FAP at age of 18. She presented with fever and abdominal distention and palpated a mass with tenderness in the right lower abdomen. Contrast-enhanced CT scan of the abdomen showed a heterogeneous contrast effect around the tumor margins. With the diagnosis of intra-abdominal desmoid tumor, a partial duodenal resection, small bowel mass resection, and right fallopian tube resection were performed along with the tumor, and an artificial anus was created with the jejunum. Contrast-enhanced CT scan of the abdomen 16 months after resection of desmoid tumor showed a 6.5 cm long desmoid tumor recurrence in the mesentery. She received 5 courses of doxorubicin (DOX)plus dacarbazine(DTIC)therapy followed by continued NSAIDs. Seven years after the operation, she has been able to maintain the shrinkage of the recurrent tumor and is still on medication. Long-term surveillance is necessary because of the possibility of the appearance of other associated lesions in the future.
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Usami T, Takada N, Nishida K, Sakai H, Iwata H, Yonezu H, Sekiya I, Nagaya Y, Ueki Y, Murakami H, Kuroyanagi G. Fixation of intra-articular calcaneal fractures: A comparative study of the postoperative outcome between HA/PPLA screws and locking plates. Heliyon 2023; 9:e14046. [PMID: 36915544 PMCID: PMC10006631 DOI: 10.1016/j.heliyon.2023.e14046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/05/2023] Open
Abstract
Background Forged unsintered hydroxyapatite and poly l-lactic acid (F-u-HA/PLLA) screw is bioactivite, bioabsorbable, and radiopaque with high mechanical strength. Its efficacy has been previously demonstrated in the treatment of lateral humeral condylar, lateral tibial condylar, ankle, and patellar fractures. However, studies on its efficacy in treatment of calcaneal fractures is lacking. This study aimed to compare the postoperative results of F-u-HA/PLLA screw fixation and locking plate fixation for intra-articular calcaneal fractures. Methods From January 2013 to December 2019, 47 closed intra-articular fractures treated with either F-u-HA/PLLA screws (group S, 18 feet in 17 patients) or locking plates (group P, 29 feet in 28 patients) in a single trauma center were retrospectively reviewed. The sinus tarsi approach was used in both groups. The time to bone union, step-off, varus deformity, Bohler's angle, and width and height of the calcaneus were assessed after surgery. Ankle joint range of motion (ROM) and postoperative complications were also assessed. Results All fractures were successfully treated. The Kaplan-Meier curves of the two groups showed similar trends. The log-rank test showed no significant difference in the time to bone union between the two groups (p = 0.48). In the Cox proportional hazards model adjusted for preoperative width and Bohler's angle, the hazard ratio for bone union was not statistically significant (HR: 1.13, 95%CI: 0.50-2.56, p = 0.78). Other variables included step-off (group S: 2.0 vs group P: 2.2 mm, p = 0.84), varus deformity (2.0° vs. 3.0°, p = 0.7), Gissane's angle (103.5° vs 104.0°, p = 0.84), width (38.0 vs 34.8 mm, p = 0.12), height (42.1 vs 44.0 mm, p = 0.07), and ankle ROM degrees (dorsal flexion, 20.0° vs. 20.0°, p = 0.13; plantar flexion 40.0° vs 40.0°, p = 0.56), which were not significantly different between groups P and S. The Bohler's angle was smaller in group S than in group P (20.5° vs 27.0°, p < 0.01). No skin necrosis or infection was observed in either group. Conclusion Postoperative results of F-u-HA/PLLA screw fixation using the sinus tarsi approach for intra-articular calcaneal fractures were as good as those of locking plate fixation.
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Affiliation(s)
- Takuya Usami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Japan
| | - Naoya Takada
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Kazuki Nishida
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Hiroaki Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hidetoshi Iwata
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Hiroki Yonezu
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Isato Sekiya
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Yuko Nagaya
- Department of Orthopedic Surgery, Nagoya City University East Medical Center, Nagoya, Japan
| | - Yoshino Ueki
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
- Corresponding author. Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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Asanuma K, Miyamura G, Suzuki Y, Makino Y, Takada N, Satonaka H, Yoshida K, Hagi T, Nakamura T, Sudo A. New screw technique for posterior column and ischial fixation from the anterior approach for acetabular fractures. J Surg Case Rep 2023; 2023:rjad073. [PMID: 36860356 PMCID: PMC9970693 DOI: 10.1093/jscr/rjad073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/30/2023] [Indexed: 03/02/2023] Open
Abstract
Management of the ischial fragment in acetabular fractures is a considerable problem. In this report, we presented how to drill or screw around the posterior column and ischium from the anterior approach using a novel 'sleeve guide technique' and the difficulty of plating. A sleeve, drill, depth gauge and driver from DepuySynthes were prepared. The portal was about 2-3 cm inside the anterior superior iliac spine opposite to the side of the fracture. The sleeve was inserted to the screw point around quadrilateral area through the retroperitoneal space. Drilling, measuring screw length by a depth gauge and the screwing were performed through the sleeve. Case 1 used a one-third plate and case 2 used a reconstruction plate. With this technique, the approach angles to the posterior column and ischium were inclined, and plating and screw insertion could be performed with a low risk of organ injury.
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Affiliation(s)
- Kunihiro Asanuma
- Correspondence address. Department of Orthopedic Surgery, Mie University, 2-174, Edobashi, Tsu City, Mie 514-8507, Japan. Tel: +81-59-231-5022; Fax: +81-59-231-5211; E-mail:
| | - Gaku Miyamura
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
| | - Yoshiaki Suzuki
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
| | - Yoshinori Makino
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
| | - Naoya Takada
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Haruhiko Satonaka
- Department of Orthopedic Surgery, Ise Municipal General Hospital, Ise, Japan
| | - Kakunoshin Yoshida
- Department of Orthopedic Surgery, Ise Municipal General Hospital, Ise, Japan
| | - Tomohito Hagi
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
| | - Tomoki Nakamura
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
| | - Akihiro Sudo
- Department of Orthopedic Surgery, Mie University School of Medicine, Tsu, Japan
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Matsubara Y, Inamura N, Takada N, Fujita T. Prenatal diagnosis of cor triatriatum sinister. Ultrasound Obstet Gynecol 2023; 61:124-126. [PMID: 36273403 DOI: 10.1002/uog.26099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 10/10/2022] [Accepted: 10/14/2022] [Indexed: 05/27/2023]
Affiliation(s)
| | - N Inamura
- Department of Pediatrics, Faculty of Medicine, Kindai University, Osaka, Japan
| | - N Takada
- Department of Pediatrics, Faculty of Medicine, Kindai University, Osaka, Japan
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13
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Murao S, Danno K, Nakamichi I, Takeda T, Fujino S, Takada N, Yamamoto K, Higashiguchi M, Noguchi K, Toyoda Y, Nakane S, Yamamoto H, Hirao T, Oka Y. [A Case of Malignant Rectal B Cell Lymphoma That Was Difficult to Differentiate from Rectal Neuroendocrine Tumor]. Gan To Kagaku Ryoho 2022; 49:1793-1795. [PMID: 36733001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 74-year-old woman with a chief complaint of hematochezia was admitted to our hospital. Colonoscopy revealed a 2 cm submucosal tumor with an erosion in the Rb of the rectum. Biopsy showed various inflammatory cell clusters, but no malignant findings. Thoracoabdominal CT and abdominal MRI showed no abnormal findings other than that of rectal wall thickening. Somatostatin receptor scintigraphy performed on suspected rectal NET showed no abnormal accumulation. A total of 3 biopsies were performed, but a definitive diagnosis was not confirmed, and transanal rectal mucosal resection was performed for diagnostic purposes. Immunohistochemistry showed CD20(+)and bcl-2(+), and the lesion was diagnosed as malignant rectal B cell lymphoma. For 1 year postoperatively, the patient showed no recurrence. For this case, biopsy often failed to confirm a definitive diagnosis on rectal submucosal tumors. If the tumor is >1 cm in diameter in a rectal NET, a rectal resection with lymph node dissection is required, and anal function may be impaired. Local tumor excision for diagnosis and treatment may be worthwhile in rectal submucosal tumors if pre-resection diagnosis with biopsy is difficult.
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14
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Yamamoto K, Hirao T, Oka Y, Takada N, Murao S, Higashiguchi M, Takeda T, Fujino S, Noguchi K, Danno K, Toyoda Y, Nakane S, Yamamoto H, Nakamichi I. [A Case of Nivolumab Responding to Multiple Lymph Node Metastases during Multidisciplinary Treatment for Esophageal Cancer]. Gan To Kagaku Ryoho 2022; 49:1995-1997. [PMID: 36733069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In nivolumab therapy for unresectable advanced esophageal cancer, there are a few cases that show a complete response, and long-term survival can be expected in such cases. Here, we report a case in which nivolumab had a complete response to multiple lymph node metastases during multidisciplinary treatment for esophageal cancer and survived for a relatively long period despite being elderly. Examination of complete response cases provides us with significant insights in considering the unexplained biomarkers of immune checkpoint inhibitors and treatment discontinuation during complete response.
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15
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Shima K, Inoue T, Uehara Y, Iwamura M, Fukagawa S, Kuwano T, Tanida K, Takada N, Saito‐Abe M, Yamamoto‐Hanada K, Ohya Y, Murase T. Non‐invasive transcriptomic analysis using
mRNAs
in skin surface lipids obtained from children with mild‐to‐moderate atopic dermatitis. J Eur Acad Dermatol Venereol 2022; 36:1477-1485. [PMID: 35462437 PMCID: PMC9545805 DOI: 10.1111/jdv.18173] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/23/2022] [Indexed: 11/29/2022]
Abstract
Background Specimens for analysing the molecular pathology of skin disease are generally obtained through invasive methods, such as biopsy. However, less burdensome methods are desirable for paediatric patients. We recently established a method that comprehensively analyses RNA present in sebum (skin surface lipid–RNAs: SSL‐RNAs) using a next‐generation sequencer. Using this method, biological information can be obtained from the skin in a completely non‐invasive manner. Objectives To verify the applicability of the SSL‐RNA method for analysis of paediatric skin and analyse the molecular pathology of mild‐to‐moderate atopic dermatitis (AD) in children. Methods We collected sebum specimens from the whole faces of 23 healthy children and 16 children with mild‐to‐moderate AD (eczema area and severity index (EASI) score: 5.9 ± 2.6) ranging in age from 6 months to 5 years, using an oil‐blotting film. We then extracted SSL‐RNAs from the samples and performed an AmpliSeq transcriptomic analysis. Results The expressions of genes related to keratinization (LCE, PSORS1C2, IVL and KRT17), triglyceride synthesis and storage (PLIN2, DGAT2 and CIDEA), wax synthesis (FAR2), ceramide synthesis (GBA2, SMPD3 and SPTLC3), antimicrobial peptides (DEFB1) and intercellular adhesion (CDSN), all of which are related to the skin barrier, are lower in children with AD than in healthy children. The children with AD also have higher expression of CCL17, a Th2‐cytokine and an increased Th2‐immune response as demonstrated by a gene set variation analysis. Moreover, KRT17 and CCL17 expression levels are significantly correlated with the EASI score. Conclusions Molecular changes associated with abnormal immune responses and the epidermal barrier in children with mild‐to‐moderate AD can be determined using the SSL‐RNA method. This non‐invasive method could therefore be a useful means for understanding the molecular pathology of paediatric AD.
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Affiliation(s)
- K. Shima
- Biological Science Research, Kao Corporation Tochigi Japan
| | - T. Inoue
- Biological Science Research, Kao Corporation Tochigi Japan
| | - Y. Uehara
- Biological Science Research, Kao Corporation Tochigi Japan
| | - M. Iwamura
- Biological Science Research, Kao Corporation Tochigi Japan
| | - S. Fukagawa
- Biological Science Research, Kao Corporation Tochigi Japan
| | - T. Kuwano
- Biological Science Research, Kao Corporation Tochigi Japan
| | - K. Tanida
- Biological Science Research, Kao Corporation Tochigi Japan
| | - N. Takada
- Biological Science Research, Kao Corporation Tochigi Japan
| | - M. Saito‐Abe
- Allergy Center, National Center for Child Health and Development Tokyo Japan
| | - K. Yamamoto‐Hanada
- Allergy Center, National Center for Child Health and Development Tokyo Japan
| | - Y. Ohya
- Allergy Center, National Center for Child Health and Development Tokyo Japan
| | - T. Murase
- Biological Science Research, Kao Corporation Tochigi Japan
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16
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Usami T, Takada N, Sakai H, Endo S, Sekiya I, Ueki Y, Murakami H, Kuroyanagi G. Treatment of patellar fractures using bioresorbable forged composites of raw particulate unsintered hydroxyapatite/poly-L-lactide cannulated screws and nonabsorbable sutures. Injury 2021; 52:1587-1591. [PMID: 33386156 DOI: 10.1016/j.injury.2020.12.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/16/2020] [Accepted: 12/16/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Forged composites of raw particulate unsintered hydroxyapatite/poly-L-lactide (F-u-HA/PLLA) implants are widely used in surgeries because they possess high mechanical strength, bioactivity, and radio-opacity. We previously reported that F-u-HA/PLLA implants were useful for treating lateral tibial condylar, lateral humeral condylar, and ankle fractures. The study aim was to investigate the efficacy of F-u-HA/PLLA cannulated screws and FiberLoop® for treating transverse patellar fractures. METHODS From April 2013 to February 2019, 15 patients with transverse patellar fractures were treated with F-u-HA/PLLA cannulated screws and FiberLoop® as follows: Open reduction and internal fixation (ORIF) were performed with two F-u-HA/PLLA cannulated screws and a temporary fixation Kirshner wire (K-wire). Three No. 2 FiberLoops® were inserted into these two screw holes and the K-wire hole for temporary fixation. All patients were allowed to full weight-bearing gaits using a knee brace. Knee range of motion exercise was initiated on postoperative day 1. Knee flexion was restricted to ≤90° for 1 month postoperatively. Radiograph was performed to evaluate fracture healing, screw breakage, reduction loss, and screw radio-opacity. Clinical outcomes and postoperative complications were assessed. RESULTS The average follow-up was 16.0 months. All fractures were successfully united. Screw breakage, reduction loss, osteolysis, and radiolucent zones around the screws were not observed at the final radiographic follow-up. All F-u-HA/PLLA screw shadows were observed during the follow-up. The average range of flexion and extension were 132.0° and -2.7°, respectively. No patients experienced deep infection episodes, late aseptic tissue reactions, or foreign body reactions postoperatively. No patients complained of pain at the final follow-up. All patients returned to their pre-injury work level and activities of daily living. CONCLUSION Our results strongly suggest that ORIF with F-u-HA/PLLA screws and FiberLoop® could be an alternative treatment option for transverse patellar fractures.
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Affiliation(s)
- Takuya Usami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan; Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Naoya Takada
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Hiroaki Sakai
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shinichiro Endo
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan; Department of Orthopedic Surgery, Ogaki Municipal Hospital, Ogaki, Japan
| | - Isato Sekiya
- Department of Orthopedic Surgery, Kainan Hospital, Yatomi, Japan
| | - Yoshino Ueki
- Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideki Murakami
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Gen Kuroyanagi
- Department of Orthopedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan; Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
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17
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Usami T, Takada N, Nishida K, Sakai H, Iwata H, Sekiya I, Ueki Y, Murakami H, Kuroyanagi G. Banding with lesser trochanter fragment using nonabsorbable tape in trochanteric femoral fractures. SICOT J 2021; 7:33. [PMID: 34009117 PMCID: PMC8132597 DOI: 10.1051/sicotj/2021032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 03/13/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction: Trochanteric femoral fracture is one of the most common fractures in the elderly. Trochanteric femoral fracture with involvement of the lesser trochanter is considered unstable and recognized as having a poor prognosis. However, fixation of lesser trochanter fragment is scarce because of technical difficulties. In this study, we reported the simple surgical procedure and the effect of using nonabsorbable tape in lesser trochanter fixation. Methods: From January 2014 to December 2017, 114 patients treated with proximal intramedullary nailing for trochanteric fractures with the lesser trochanter fragment were reviewed. Among patients enrolled in this study, 73 were followed up until radiographic bone union, of which 26 were treated with lesser trochanter fragment banding (group B) and 47 without banding (group N). Radiographs and/or computed tomography images were used to evaluate bone union of the lesser trochanter fragment at three months postoperatively. Results: The bone union of the lesser trochanter fragment was achieved in 24 cases (92%) in group B and 30 cases (64%) in group N. Compared with group N, group B showed a significantly increased number of mild and moderate deformities but decreased number of severe deformity and nonunion (P < 0.001). Postoperative complications were not observed in both groups. Conclusions: From the viewpoint of increasing lesser trochanteric bone union ratio, fixation of the lesser trochanter fragment using nonabsorbable tape in the treatment of trochanteric fractures could be an effective procedure.
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Affiliation(s)
- Takuya Usami
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan
| | - Naoya Takada
- Department of Orthopaedic Surgery, Kainan Hospital, Yatomi, 498-8502 Aichi, Japan
| | - Kazuki Nishida
- Center for Advanced Medicine and Clinical Research Nagoya University Hospital, Nagoya, 466-8560 Aichi, Japan
| | - Hiroaki Sakai
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan
| | - Hidetoshi Iwata
- Department of Orthopaedic Surgery, Kainan Hospital, Yatomi, 498-8502 Aichi, Japan
| | - Isato Sekiya
- Department of Orthopaedic Surgery, Kainan Hospital, Yatomi, 498-8502 Aichi, Japan
| | - Yoshino Ueki
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan - Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan
| | - Hideki Murakami
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan
| | - Gen Kuroyanagi
- Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan - Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601 Aichi, Japan
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18
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Takada N, Asakura K, Sugiyama S. Developing and validating the Japanese version of professional attitude scale for nurses. Int Nurs Rev 2020; 68:24-33. [PMID: 33047308 PMCID: PMC8247416 DOI: 10.1111/inr.12627] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/20/2020] [Accepted: 08/23/2020] [Indexed: 11/28/2022]
Abstract
Aim We developed and psychometrically tested the Japanese version of the Professional Attitude Scale for Nurses (PASN‐J). Background Nurses must recognize the importance of their professionalism; therefore, it is critical to quantitatively measure nurses’ professional attitudes. Introduction This instrument validation study was designed to generate an itemized scale and examine its content validity/psychometric testing using a sample of Japanese nurses. Methods Based on a trait approach focusing on the characteristic traits of the nursing profession, a 59‐item draft scale was generated. During November 2017, 2657 nurses from 29 facilities in Japan were surveyed. The questionnaire included demographics, the 59‐item draft scale, and a self‐report scale of nurses’ professional behaviour and nursing practice ability. Using exploratory and confirmatory factor analyses, we evaluated the construct, criterion‐related, concurrent, and known‐groups validity, and reliability of the PASN‐J. Results Data from 1716 participants were analysed. The analyses yielded a 38‐item, 3‐factor scale that adequately fit the data. PASN‐J scores were positively correlated with nurses’ professional behaviour and nursing practice ability. Conclusion The 38‐item PASN‐J has good reliability and validity, making it useful for measuring the current condition of nursing professionalism and evaluating nursing education. Implications for Nursing and Health Policy: This scale can evaluate nursing education and promote nurses’ professionalism. The PASN‐J will help identifying the elements of undergraduate nursing education that require further emphasis. Additionally, the PASN‐J could facilitate the development of nursing policies to promote professional development in nurses. Ultimately, evaluating nursing education with the PASN‐J enhances nurses’ professional attitudes and subsequently improves their quality of nursing, nursing efficiency and patient outcomes.
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Affiliation(s)
- N Takada
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - K Asakura
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - S Sugiyama
- Graduate School of Medicine, Tohoku University, Sendai, Japan
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19
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Kuroyanagi G, Yoshihara H, Yamamoto N, Suzuki H, Yamada K, Yoshida Y, Otsuka T, Takada N. Treatment of Lateral Tibial Condylar Fractures Using Bioactive, Bioresorbable Forged Composites of Raw Particulate Unsintered Hydroxyapatite/Poly-L-Lactide Screws. Orthopedics 2018; 41:e365-e368. [PMID: 29570761 DOI: 10.3928/01477447-20180320-05] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/22/2018] [Indexed: 02/03/2023]
Abstract
Forged composites of raw particulate unsintered hydroxyapatite/poly-L-lactide (F-u-HA/PLLA) devices possess high mechanical strength, bioactivity, and radio-opacity. The aim of this study was to assess the efficacy of F-u-HA/PLLA screws in the treatment of lateral tibial condylar fractures. From January 2005 to December 2010, a total of 7 patients with displaced closed lateral tibial condylar fractures (Schatzker type II) were treated using F-u-HA/PLLA screws. Open reduction and internal fixation was performed using 2 or 3 F-u-HA/PLLA screws. After surgery, weight bearing was not allowed for 6 weeks. Range of motion exercise was initiated after removal of the plaster splint. Radiographs were evaluated for fracture healing, joint depression, and the radioopacity of F-u-HA/PLLA screws. Clinical outcomes and postoperative complications were also assessed. Average follow-up was 44 months. All fractures were successfully healed. Average values for joint depression were 4.7 mm (range, 2-9 mm) preoperatively, 0.4 mm (range, 0-1 mm) postoperatively, and 0.4 mm (range, 0-1 mm) at final follow-up. Whole shadows of F-u-HA/PLLA screws were observed during the follow-up period. Breakage of screws, osteolysis, and a radiolucent zone around the screws were not observed at final follow-up. Average knee flexion and extension were 134° (range, 110° to 150°) and -1° (range, -10° to 0°), respectively. No patient had wound infection, late aseptic tissue response, or foreign body reaction postoperatively. None of the patients reported pain at final follow-up. These results suggest that F-u-HA/PLLA screws could be an alternative option for the treatment of lateral tibial condylar fractures. [Orthopedics. 2018; 41(3):e365-e368.].
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20
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Tsuruoka S, Kataoka M, Makita K, Ishikawa H, Takada N, Nagasaki K, Hamamoto Y, Mochizuki T. EP-1435: The role of elective nodal irradiation in radiotherapy for stage I esophageal cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31744-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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21
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Higuchi M, Hirokawa M, Suzuki A, Takada N, Yamao N, Kuma S, Miyauchi A. Cytological features of solid variants of papillary thyroid carcinoma: a fine needle aspiration cytology study of 18 cases. Cytopathology 2016; 28:268-272. [PMID: 27862483 DOI: 10.1111/cyt.12399] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Solid variants of papillary thyroid carcinoma (SV-PTC) are rare, and there have been few reports describing the cytological findings of such variants. METHODS The cytological features of cellular specimens aspirated from 18 histologically confirmed SV-PTC cases were evaluated, retrospectively. RESULTS Solid and small papillary clusters were observed in 14 (77.8%) and 13 (72.2%) cases, respectively. The incidences of large papillary clusters (11.1%) and sheet-like arrangements (11.1%) were low. Nuclear features were consistent with conventional PTC. The background was clean, and there were no colloid materials, foamy histiocytes, multinucleated giant cells, psammoma bodies, or necrotic materials. CONCLUSIONS Solid clusters and small papillary clusters in conjunction with a clean background are diagnostic clues that indicate SV-PTC cytologically. It is thought that small papillary clusters reflect the micropapillary growth pattern seen within the lumen of middle-sized follicular structures. The presence of nuclear findings typical of conventional PTC and the absence of mitotic figures and necrotic materials are important for distinguishing SV-PTC from poorly differentiated carcinoma.
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Affiliation(s)
- M Higuchi
- Department of Laboratory Science, Kuma Hospital, Kobe, Japan
| | - M Hirokawa
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - A Suzuki
- Department of Laboratory Science, Kuma Hospital, Kobe, Japan
| | - N Takada
- Department of Laboratory Science, Kuma Hospital, Kobe, Japan
| | - N Yamao
- Department of Laboratory Science, Kuma Hospital, Kobe, Japan
| | - S Kuma
- Department of Diagnostic Pathology and Cytology, Kuma Hospital, Kobe, Japan
| | - A Miyauchi
- Department of Surgery, Kuma Hospital, Kobe, Japan
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22
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Suzuki J, Hashino M, Matsumoto S, Takano A, Kawabata H, Takada N, Andoh M, Oikawa Y, Kajita H, Uda A, Watanabe K, Shimizu T, Watarai M. Detection of Francisella tularensis and analysis of bacterial growth in ticks in Japan. Lett Appl Microbiol 2016; 63:240-6. [PMID: 27432517 DOI: 10.1111/lam.12616] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 07/13/2016] [Accepted: 07/14/2016] [Indexed: 11/28/2022]
Abstract
UNLABELLED Francisella tularensis is distributed in the Northern hemisphere and it is the bacterial agent responsible for tularaemia, a zoonotic disease. We collected 4 527 samples of DNA from ticks in Japan, which were then analysed by real-time PCR and nested PCR. Francisella DNA was detected by real-time PCR in 2·15% (45/2 093) of Ixodes ovatus, 0·66% (14/2 107) of I. persulcatus, 8·22% (6/73) of I. monospinosus and 0·72% (1/138) of Haemaphysalis flava specimens. Finally, Francisella DNA was detected by nested PCR in 42 and five samples I. ovatus and I. persulcatus, respectively, which were positive according to real-time PCR. Phylogenetic analysis showed that the sequence from I. ovatus and I. persulcatus were clustered with F. tularensis type B strains distributed in Eurasia. Microinjected live F. tularensis persisted in ticks, whereas heat-killed F. tularensis decreased. Microinjected F. tularensis hlyD mutant decreased in ticks significantly compared to parent strain, thereby suggesting that HlyD in F. tularensis contributes to the adaptation or survive of bacterial infection in ticks. SIGNIFICANCE AND IMPACTS OF THE STUDY Francisella tularensis has been detected in ticks, suggesting that it is a tick-borne pathogen. However, F. tularensis has not been detected in ticks in Japan since 1991. In this study, we performed a large-scale analysis of DNA isolated from ticks in Japan and detected F. tularensis by real-time polymerase chain reaction (PCR) and nested PCR. We found that F. tularensis could survive in ticks based on an experimental tick-infection model. We also identified a bacterial factor that contributes to survival in ticks. Our results suggest that ticks are candidate vectors that mediate F. tularensis infection in Japan.
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Affiliation(s)
- J Suzuki
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - M Hashino
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - S Matsumoto
- Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - A Takano
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - H Kawabata
- Laboratory of Systemic Infection, Department of Bacteriology-I, National Institute of Infectious Diseases, Tokyo, Japan
| | - N Takada
- Faculty of Medical Science, University of Fukui, Eiheiji, Fukui, Japan
| | - M Andoh
- Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
| | - Y Oikawa
- Department of Medical Zoology, Kanazawa Medical University, Kahoku, Ishikawa, Japan
| | - H Kajita
- Meat Inspection Center of Iwate Prefecture, Iwate, Japan
| | - A Uda
- Department of Veterinary Science, National Institute of Infectious Diseases, Tokyo, Japan
| | - K Watanabe
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - T Shimizu
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.,Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - M Watarai
- The United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan. .,Department of Veterinary Medicine, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan.
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Abstract
The development of blowing agents that exhibit lower thermal conductivity, shorter atmospheric lifetime, and less adverse effects on the atmosphere is an urgent issue. We investigated three fluorinated ethers as blowing agent alternatives [2,2,2-trifluoroethyl difluoromethyl ether (HFE-254mf), 2,2,3,3,3-pentafluoropropyl difluoromethyl ether (HFE-347mcf), and 1,1,2,2-tetrafluoroethyl-2,2,2-trifluoroethyl ether (HFE-347pc-f)] in terms of physical properties (boiling point and gaseous thermal conductivity), environmental adaptability (atmospheric lifetime), toxicity, flammability, solubility in polyols, and thermal stability. By using these fluorinated ethers as blowing agents, we experimentally produced rigid polyurethane foams, all of which showed thermal conductivities lower than or equal to foams produced with the blowing agent alternative candidates, HFC-245fa and cyclopentane.
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Affiliation(s)
- N. Takada
- RITE, cdo NIMC, 1-1 Higashi, Tsukuba, 305-8565 Japan
| | - R. Tamai
- RITE, cdo NIMC, 1-1 Higashi, Tsukuba, 305-8565 Japan
| | - H. Yamamoto
- RITE, cdo NIMC, 1-1 Higashi, Tsukuba, 305-8565 Japan
| | - A. Sekiya
- National Institute of Materials and Chemical Research (NIMC), Division of Organic Chemistry, 1-1 Higashi, Tsukuba, Ibaraki 305-8565 Japan
| | - N. Tsukida
- Asahi Glass Co., Ltd., 3-474-2 Tsukakoshi, Sawai-ku, Kanagawa-shi, 210-0924 Japan
| | - H. Takeyasu
- Asahi Glass Co., Ltd., 3-474-2 Tsukakoshi, Sawai-ku, Kanagawa-shi, 210-0924 Japan
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24
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Suzuki A, Hirokawa M, Takada N, Masuoka H, Miyauchi A. Thyroid follicular adenoma with numerous intracytoplasmic lumina mimicking yellow bodies: a case report. Cytopathology 2016; 27:495-498. [PMID: 27146719 DOI: 10.1111/cyt.12339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2016] [Indexed: 11/30/2022]
Affiliation(s)
- A Suzuki
- Department of Laboratory, Kuma Hospital, Kobe, Japan
| | - M Hirokawa
- Department of Diagnostic Pathology, Kuma Hospital, Kobe, Japan
| | - N Takada
- Department of Laboratory, Kuma Hospital, Kobe, Japan
| | - H Masuoka
- Department of Surgery, Kuma Hospital, Kobe, Japan
| | - A Miyauchi
- Department of Surgery, Kuma Hospital, Kobe, Japan
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Abstract
Reported here are five cases of tick bite: in a 2-year-old boy, a 3-year-old girl, a 72-year-old woman, a 29-year-old woman, and a 51-year-old man. Four cases are thought to have occurred in a mountain area while one occurred in a city garden. None were accompanied with severe systemic symptoms or deuteropathies. The parasites were identified as the adult female tick Ixodes ovatus Neumann (3 cases) and Ixodes nipponensis Kitaoka et Saito (2 cases), which are commonly distributed in Japan.
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Affiliation(s)
- S Sakai
- Department of Dermatology, Hirosaki University School of Medicine, Hirosaki, Japan
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Mukofujiwara Y, Sekiya I, Takada N, Hayashi Y, Shibata Y, Katuda Y. AB0369 Clinical Features of Elderly-Onset Rheumatoid Arthritis Started with the Acute Onset. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.6074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tsujiyama S, Muraoka T, Takada N. Biodegradation of 2,4-dichlorophenol by shiitake mushroom (Lentinula edodes) using vanillin as an activator. Biotechnol Lett 2013; 35:1079-83. [DOI: 10.1007/s10529-013-1179-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 02/26/2013] [Indexed: 11/29/2022]
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Yoshitoshi EY, Yoshizawa A, Ogawa E, Kaneshiro M, Takada N, Okamoto S, Fujimoto Y, Sakamoto S, Masuda S, Matsuura M, Nakase H, Chiba T, Tsuruyama T, Haga H, Uemoto S, Uemoto S. The challenge of acute rejection in intestinal transplantation. Pediatr Surg Int 2012; 28:855-9. [PMID: 22760434 DOI: 10.1007/s00383-012-3110-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/30/2012] [Indexed: 10/28/2022]
Abstract
Early diagnosis and treatment of acute cellular rejection (ACR) after intestinal transplantation (ITx) is challenging. We report the outcome of three patients: two presented mild ACR improved with steroids. One presented steroid-resistant severe rejection, improved after rabbit anti-thymocyte globulin (r-ATG), but unfortunately died for encephalitis caused by opportunistic infections.
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Affiliation(s)
- E Y Yoshitoshi
- Department of Hepatobiliary, Pancreas, Transplantation and Pediatric Surgery, Kyoto University Hospital, Graduate School of Medicine, 54 Kawara-cho, Shogoin, Sakyo-ku, Kyoto city, 606-8507, Japan.
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Takada N, Otsuka T, Yamada K, Suzuki H, Hasuo T, Kondo A, Fukuta M. Minimally invasive plate osteosynthesis for distal radius fractures with a palmar locking plate. Eur J Trauma Emerg Surg 2012; 38:627-32. [PMID: 26814548 DOI: 10.1007/s00068-012-0204-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Accepted: 06/12/2012] [Indexed: 10/28/2022]
Abstract
PURPOSE Since 2006, we have been performing minimally invasive plate osteosynthesis with a palmar locking plate and without division of the pronator quadratus muscle for repairing distal radial fractures. The purpose of this study was to present the surgical technique we have developed and to retrospectively evaluate the clinical outcomes. METHODS Twenty patients were treated with this technique between January and December 2007. The range of motion of the wrist and forearm, grip strength, and the quick disability of the arm, shoulder, and hand score were assessed at the latest follow-up examination, and postoperative complications were evaluated. RESULTS The average ranges of flexion and extension of the wrist were 55° and 60°, respectively. The average ranges of supination and pronation of the forearm were 88° and 86°, respectively. The average grip strength of the treated side was 71 % of that of the uninjured side. The average quick disability of the arm, shoulder, and hand score was 13.4 points. No patient had loss of fracture reduction, implant failure, deep infection, or tendon or nerve problems. CONCLUSIONS The small skin incisions of this technique are advantageous from the aesthetic viewpoint. Minimally invasive plate osteosynthesis is one of the options for the treatment of distal radial fractures.
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Affiliation(s)
- N Takada
- Department of Orthopaedic Surgery, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8602, Japan.
| | - T Otsuka
- Department of Orthopaedic Surgery, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - K Yamada
- Department of Orthopaedic Surgery, Komaki City Hospital, 1-20 Jyobushi, Komaki, Aichi, 485-0852, Japan
| | - H Suzuki
- Department of Orthopaedic Surgery, Komaki City Hospital, 1-20 Jyobushi, Komaki, Aichi, 485-0852, Japan
| | - T Hasuo
- Department of Orthopaedic Surgery, Komaki City Hospital, 1-20 Jyobushi, Komaki, Aichi, 485-0852, Japan
| | - A Kondo
- Department of Orthopaedic Surgery, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
| | - M Fukuta
- Department of Orthopaedic Surgery, Nagoya City University, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi, 467-8602, Japan
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Seki T, Harada H, Takada N, Mochizuki T, Hotta K, Sato T, Murahashi N, Togashi M. MP-14.9 Open Conversion Cases During Laparoscopic Surgery: The Sappro City General Hospital Experience. Urology 2011. [DOI: 10.1016/j.urology.2011.07.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kanda T, Imazeki F, Yonemitsu Y, Mikami S, Takada N, Nishino T, Takashi M, Tsubota A, Kato K, Sugiura N, Tawada A, Wu S, Tanaka T, Nakamoto S, Mikata R, Tada M, Chiba T, Kurihara T, Arai M, Fujiwara K, Kanai F, Yokosuka O. Quantification of hepatitis C virus in patients treated with peginterferon-alfa 2a plus ribavirin treatment by COBAS TaqMan HCV test. J Viral Hepat 2011; 18:e292-7. [PMID: 21129130 DOI: 10.1111/j.1365-2893.2010.01409.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Extremely low levels of serum hepatitis C virus (HCV) RNA can be detected by COBAS TaqMan HCV test. To investigate whether the COBAS TaqMan HCV test is useful for measuring rapid virological response (RVR) and early virological response (EVR) to predict sustained virological response (SVR), we compared the virological response to PEG-IFN-alfa 2a plus RBV in 76 patients infected with HCV genotype 1 when undetectable HCV RNA by the COBAS TaqMan HCV test was used, with those when below 1.7 log IU/mL HCV RNA by COBAS TaqMan HCV test was used, which corresponded to the use of traditional methods. Among the 76 patients, 28 (36.8%) had SVR, 13 (17.1%) relapsed, 19 (25.0%) did not respond, and 16 (21.0%) discontinued the treatment due to side effects. The positive predictive values for SVR based on undetectable HCV RNA by COBAS TaqMan HCV test at 24 weeks after the end of treatment [10/10 (100%) at week 4, 21/23 (91.3%) at week 8 and 26/33 (78.7%) at week 12] were superior to those based on <1.7 log IU/mL HCV RNA [17/19 (89.4%) at week 4, 27/38 (71.0%) at week 8, and 27/43 (62.7%) at week 12]. The negative predictive values for SVR based on <1.7 log IU/mL HCV RNA by COBAS TaqMan HCV test [46/57 (80.7%) at week 4, 37/38 (97.3%) at week 8, and 32/33 (96.9%) at week 12] were superior to those based on undetectable HCV RNA [48/66 (72.7%) at week 4, 46/53 (86.7%) at week 8, and 41/43 (95.3%) at week 12]. The utilization of both undetectable RNA and <1.7 log IU/mL HCV RNA by COBAS TaqMan HCV test is useful and could predict SVR and non-SVR patients with greater accuracy.
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Affiliation(s)
- T Kanda
- Department of Medicine and Clinical Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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Takada N, Abe T, Maruyama S, Sazawa A, Shinohara N, Seki T, Togashi M, Nonomura K. Perioperative morbidity and mortality in patients treated by radical cystectomy: A multi-institutional retrospective study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.7_suppl.270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
270 Background: It is well known that radical cystectomy is associated with comparatively high perioperative morbidity and mortality. In the present study, we collected data of perioperative outcomes from Hokkaido University Graduate School of Medicine and our teaching hospitals and assessed the complications and death rate within 90 days after radical cystectomy. Methods: We collected clinical data of 970 patients undergoing radical cystectomy for nonmetastatic bladder cancer in 21 institutions between 1999 and 2009. We then assessed 90-day complications and death after radical cystectomy. The complications were classified according to the modified Clavien classification. Over 40 variables were included in the analysis, including age, ASA score, BMI, comorbidity, neoadjuvant chemotherapy, clinical stage, type of urinary diversion, operative time, estimated blood loss, transfusion, and hospital stay. Statistical analysis was performed utilizing Student's t-tests, chi-square tests, and logistic regression analysis. Results: The median patient age was 70 (range, 25-91) years old. 62.5% of patients had an ASA score≥2. Regarding the urinary diversion, ileal conduit was performed in 523 (53.6%) patients, neobladder in 178 (18.4%), ureterocutaneostomy in 255 (26.3%). Median operative time was 399 (range, 100-927) minutes. Median hospital stay was 39 (0-364) days. Regarding the complications, 660 (68%) patients experienced at least one complication and death rate within 90 days after surgery was 1.34% (n=13), respectively. Of the complications, 34.1% was classified as grade 1, 41.5% as grade 2, 20.1% as grade 3, 1.1% as grade 4, 1.2% as grade 5. Multivariate analysis identified age≥70 (odds ratio 1.41), urinary diversion utilizing intestine (OR 1.58) and operative time ≥ 400 (OR 1.54) were independent risk factors. Conclusions: Death rate was 1.34%, which was compatible to reports form western high- volume centers. About two-thirds of the patients experienced at least one complication, although they were mostly classified as grade 2 or less. Age, urinary diversion, and operative time were significant risk factors for perioperative complications after radical cystectomy. No significant financial relationships to disclose.
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Affiliation(s)
- N. Takada
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - T. Abe
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - S. Maruyama
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - A. Sazawa
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - N. Shinohara
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - T. Seki
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - M. Togashi
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
| | - K. Nonomura
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan; Sapporo City General Hospital, Sapporo, Japan
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Takada N, Otsuka T, Kondo A, Fukuta M, Suzuki H, Yamada K. Minimally invasive osteosynthesis with an intramedullary nail for osteoporotic distal radius fractures. Eur J Orthop Surg Traumatol 2011. [DOI: 10.1007/s00590-010-0743-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abe T, Shinohara N, Muranaka M, Sazawa A, Maruyama S, Osawa T, Harabayashi T, Kubota K, Matsuno Y, Shibata T, Toyada Y, Shinno Y, Minami K, Sakashita S, Kumagai A, Takada N, Togashi M, Sano H, Mori T, Nonomura K. Role of lymph node dissection in the treatment of urothelial carcinoma of the upper urinary tract: multi-institutional relapse analysis and immunohistochemical re-evaluation of negative lymph nodes. Eur J Surg Oncol 2010; 36:1085-91. [PMID: 20832972 DOI: 10.1016/j.ejso.2010.08.134] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Revised: 06/11/2010] [Accepted: 08/19/2010] [Indexed: 01/11/2023] Open
Abstract
AIM To determine the role of lymph node dissection (LND) in the treatment of urothelial carcinoma (UC) of the upper urinary tract (UUT). PATIENTS AND METHODS [Study-1] A retrospective multi-institutional study evaluated 293 patients undergoing predominantly nephroureterectomy for UC of the UUT. Of 293 patients, 267 patients had pure UC and 26 demonstrated other histological components. Regarding the pathological node status, 130 patients had pN0 disease, 141 patients had pNx disease and 22 patients had pN+ disease. The sites of initial recurrence and time to first recurrence were reviewed. The sites of recurrence were classified as locoregional or distant recurrence. The relationship between node status and future recurrence was analyzed. [Study-2] Fifty-one patients treated by nephroureterectomy at Hokkaido University Hospital were included. All had LND and all LNs were negative on hematoxylin and eosin staining. We re-evaluated the presence of micrometastasis in LND specimens by anti-cytokeratin immunohistochemistory. RESULTS [Study-1] Of 293 patients, 76 developed disease relapse. Regional lymph node recurrence was the most common site (34 patients). On multivariate analyses that adjusted for the effect of tumor stage and tumor grade, pNx (skipping LND) was an adverse factor not only for locoregional recurrence, but also for distant relapse. [Study-2] Immunohistochemistry identified micrometastases in 7 (14%) of 51 patients. Regarding survival, 5 of these 7 patients with micrometastases were alive at last follow-up. CONCLUSIONS On relapse analysis, skipping LND was an adverse factor not only for locoregional recurrence, but also for distant relapse. Immunohistochemistry detected micrometastases in about 14% of patients previously diagnosed as pN0. These findings further support a potential therapeutic benefit of LND by eliminating micrometastases.
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Affiliation(s)
- T Abe
- Department of Urology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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Sakurai M, Todaka K, Takada N, Kamigaki S, Anami S, Shikata A, Ueno H, Iseki C, Fujii C, Fujino M, Yamamura J, Masuda H, Ishitobi M, Nakayama T, Masuda N. Multicenter phase II study of a frozen glove to prevent docetaxel-induced onycholysis and cutaneous toxicity for the breast cancer patients (Kinki Multidisciplinary Breast Oncology Group: KMBOG-0605). Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-4093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Abstract #4093
Background: We have learned from the questionnaire survey of description and hearing type that the onycholysis and skin toxicity occur in approximately 90% of patients(pts) treated with docetaxel (DTX) on hands and 65% on feet. Besides neurotoxicity and edema, these adverse events cause the worse quality of life (QOL) assessment because of the exposure, public noticed site. According to the report that the Elasto-Gel frozen glove (FG) was effective for the prevention of DTX-induced onycholysis and skin toxicity (Scotte F, JCO 23, 4424-29, 2005), we have planned to reanalyze the efficacy and safety of FG for Japanese breast cancer pts by the multicenter, prospective phase II study.
 Patients and Methods: Patients receiving DTX 75 mg/m2 alone or in combination chemotherapy more than 4 cycles were eligible for this case-control study. Each patient on case group wore an FG for a total of 90 minutes on the both hands. Her feet were not protected. The control data was obtained by the questionnaire survey from the pts who had not used FG during the chemotherapy. Onycholysis and skin toxicity were assessed at each cycle by National Cancer Institute Common Toxicity Criteria and documented by photography. This study had accomplished by multidisciplinary approach by nurses, pharmacists, and doctors. Wilcoxon matched-pairs rank test was used.
 Results: Between March 2006 and May 2007, 70 pts on case and 52 pts on control were evaluated. Median age were similar for each group, 52 [29-74 years] on case and 51 [25-73 years] on control. Onycholysis and skin toxicity were significantly lower in the FG-protected hands compared with the control hands (P = .0001). Onycholysis was grade (G) 0 in 41% v 8%, G1 in 54% v 74%, and G2 to 3 in 4.3% v 18% for the FG-protected hands and the control hands, respectively. For the feet, there was no difference in frequency between pts on case and on control. Skin toxicity was G0 in 76.6% v 44%, G1 in 13.6% v 42%, and G2 to 3 in 4.4% v 14% for the FG-protected hands and the control, respectively. 32 pts (46%) had experienced the deterioration of pigmentation on hands and/or feet, the FG had seemed not to be able to prevent these unfavorable events. Median time to nail and skin toxicity occurrence was not significantly different between the FG-protected and the control hands of feet, respectively. Although one pt (1.4%) experienced discomfort due to cold intolerance, there were no serious adverse events caused by FG.
 Conclusion: FG significantly reduces the nail and skin toxicity associated with DTX and is a safety tool on supportive care management. This should be provided in general practice widely to improve a patient's QOL.
Citation Information: Cancer Res 2009;69(2 Suppl):Abstract nr 4093.
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Affiliation(s)
- M Sakurai
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - K Todaka
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - N Takada
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - S Kamigaki
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - S Anami
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - A Shikata
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - H Ueno
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - C Iseki
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - C Fujii
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - M Fujino
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - J Yamamura
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - H Masuda
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
| | - M Ishitobi
- 3 Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan
| | - T Nakayama
- 2 Breast Oncology Group, Sakai Municipal Hospital, Sakai, Japan
| | - N Masuda
- 1 Breast Oncology Group, Osaka National Hospital, Osaka, Japan
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Mahara F, Takada N. Vector and Epidemiology. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Affiliation(s)
- T Sato
- Dept of Chemistry and Materials Technology, Kyoto Institute of Technology, Japan
| | - N Takada
- Dept of Chemistry and Materials Technology, Kyoto Institute of Technology, Japan
| | - M Ueda
- Dept of Chemistry and Materials Technology, Kyoto Institute of Technology, Japan
| | - T Nakamura
- Dept of Life Science, Nara Saho Jogakuin College, Japan
| | - M R Luo
- Design Research Centre, University of Derby, UK
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Takada N, Yamaguchi H, Shida K, Terajima D, Satou Y, Kasuya A, Satoh N, Satake M, Wang HG. The cell death machinery controlled by Bax and Bcl-XL is evolutionarily conserved in Ciona intestinalis. Apoptosis 2008; 10:1211-20. [PMID: 16215691 DOI: 10.1007/s10495-005-1391-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Bax and Bcl-XL are key regulators of apoptosis in mammals. Here we report the functional characterization of two Bcl-2 homologues, ciBax and ciBcl-XL, in a basal invertebrate-chordate ascidian Ciona intestinalis. CiBax is a Ciona homologue of the BH1-3 pro-apoptotic protein Bax, whereas ciBcl-XL is a Bcl-XL-like anti-apoptotic protein. Molecular modeling analysis showed that ciBax and ciBcl-XL share both sequence and structural similarities to human Bax and Bcl-XL, respectively. Like their human counterparts, ciBax could form a homodimer or oligomers as well as heterodimerize with ciBcl-XL, and overexpression of ciBax caused apoptosis that could be attenuated by ciBcl-XL. Mutagenesis studies showed that the BH3 domain of ciBax is critical for its cell death-inducing function and also for its interaction with ciBcl-XL. In Ciona embryos, ectopic expression of ciBax but not its BH3 deletion mutant resulted in cell dissociation and apoptosis after late gastrula stage of embryonic development. Moreover, not only wild type ciBcl-XL but also a mutant ciBcl-XL(F101V), which is unable to interact with ciBax, could block cell dissociation and developmental deficit in Ciona embryos induced by overexpression of ciBax. Taken together, these findings suggest that functional homologues of both the BH1-3 death effector Bax and the pro-survival Bcl-XL exist in sea squirt Ciona intestinalis, and they control the cell death machinery independent of their heterodimerization.
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Affiliation(s)
- N Takada
- Department of Interdisciplinary Oncology, Drug Discovery Program, H. Lee Moffitt Cancer Center & Research Institute, University of South Florida College of Medicine, 12902 Magnolia Drive, Tampa, FL 33612, USA
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Terakami S, Adachi Y, Iketani H, Sato Y, Sawamura Y, Takada N, Nishitani C, Yamamoto T. Genetic mapping of genes for susceptibility to black spot disease in Japanese pears. Genome 2008; 50:735-41. [PMID: 17893733 DOI: 10.1139/g07-053] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Black spot disease, which is caused by the Japanese pear pathotype of Alternaria alternata (Fr.) Keissler, is one of the most harmful diseases in Japanese pear cultivation. We identified the exact positions and linkage groups (LGs) of the genes for susceptibility to black spot in the Japanese pear (Pyrus pyrifolia Nakai) cultivars 'Osa Nijisseiki' (gene Ani) and 'Nansui' (gene Ana). Segregation of susceptibility and resistance fitted the expected ratio of 1:1 in progeny of 'Nansui' but showed a slight distortion in progeny of 'Osa Nijisseiki'. We mapped the genes for susceptibility to black spot in both populations using a genome scanning approach. The simple sequence repeat (SSR) markers CH04h02 and CH03d02 showed tight linkage to Ani and Ana. Although Ani and Ana are derived from different sources, both genes are located at the top region of LG 11. Information about the positions of the susceptibility genes and the molecular markers linked to them will be useful for marker-assisted selection in pear breeding programs.
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Affiliation(s)
- S Terakami
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
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Takada N, Ushida H, Sasaki K. Nitridation of titanium surface by the irradiation of YAG laser pulses in N2/O2gas mixture and liquid nitrogen. ACTA ACUST UNITED AC 2007. [DOI: 10.1088/1742-6596/59/1/009] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Takahashi M, Ozaki T, Takahashi A, Miyauchi M, Ono S, Takada N, Koda T, Todo S, Kamijo T, Nakagawara A. DFF45/ICAD restores cisplatin-induced nuclear fragmentation but not DNA cleavage in DFF45-deficient neuroblastoma cells. Oncogene 2007; 26:5669-73. [PMID: 17353905 DOI: 10.1038/sj.onc.1210352] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We have previously defined a homozygously deleted region at chromosome 1p36.2-p36.3 in human neuroblastoma cell lines, NB-1 and NB-C201, and identified six genes including DFF45/ICAD within this region. In this study, we found that NB-C201 cells are much more resistant to various genotoxic stresses such as cisplatin (CDDP) than CHP134 and SH-SY5Y cells that do not have the homozygous deletion. To examine a role(s) of DFF45 in the regulation of apoptosis in response to CDDP, we have established stably DFF45-expressing NB-C201 cell clones (DFF45-1 and DFF45-3) and a control cell clone (NB-C201-C) using a retrovirus-mediated gene transfer. In contrast to NB-C201-C cells, DFF45-3 cells displayed apoptotic nuclear fragmentation in response to CDDP. Although CDDP-induced proteolytic cleavage of procaspase-3 and DFF45 in DFF45-3 cells, we could not detect a typical apoptotic DNA fragmentation. Additionally, deletion analysis revealed that C-terminal region of DFF45 is required for inducing nuclear fragmentation. Unexpectedly, (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays demonstrated that DFF45 has undetectable effect on CDDP sensitivity of NB-C201 cells. Taken together, our present results suggest that DFF45/DFF40 system may be sufficient for CDDP-induced nuclear fragmentation but not DNA cleavage.
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Affiliation(s)
- M Takahashi
- Division of Biochemistry, Chiba Cancer Center Research Institute, Chiba, Japan
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Takada N, Hayasaka S, Chiba K. 134 CONCEPTION RATES OF IN VITRO-PRODUCED BOVINE EMBRYOS CRYOPRESERVED IN 6% GLYCEROL AND TRANSFERRED BY THE DIRECT METHOD. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Ethylene glycol has been used as the standard cryoprotectant for direct transfer of bovine embryos due to its high permeability. But Merton et al. reported that cryoprotectivity of glycerol for bovine embryos was superior to that of ethylene glycol (2001 Theriogenology 55, 312 abst). We previously reported that nonsurgical transfer of in vivo-derived bovine embryos cryopreserved in a lower concentration (5%) of glycerol and thawed by stepwise method resulted in a 55.4% conception rate, whereas direct transfer without removal of cryoprotectant showed only a 45.1% conception rate (Takada et al. 2005 Jpn. J. Embryo Transfer 27, 59–64). In this experiment, survival and conception rates of in vitro-produced (IVP) bovine embryos cryopreserved in 6% glycerol solution (GLY) were compared to those of embryos cryopreserved in 10% ethylene glycol plus 0.1 M sucrose solution (EG). Cumulus–oocyte complexes were matured and fertilized according to Numabe et al. (2000 Theriogenology 54, 1409–1420). Presumed zygotes were cultured in mSOF supplemented with 5% calf serum (CS) and 0.25% linoleic acid albumin at 38.5�C under 5% CO2, 5% O2, 90% N2 for 7 days. At the expanded blastocyst stage, embryos were placed in GLY or EG in PBS supplemented with 20% CS for 15 min at room temperature and loaded into 0.25-mL straws. Straws were placed directly into an alcohol freezer. When the cryoprotectant was GLY, straws were seeded at -4.0�C, held for 10 min, cooled at 0.5�C min to -30.5�C, and then plunged into liquid nitrogen. When the cryoprotectant was EG, the seeding point was -7.5�C, and the plunging point was -34.0�C, but the rest of the protocol was the same as for GLY. In Exp. 1, thawing in both groups was done in a 30�C water bath, and the contents were directly rehydrated in PBS with 20% CS. Thawed embryos were cultured in mSOF with 5% CS for 24 h to assess embryo survival rate, based on the re-expansion of the blastcoele and on their hatching ability. In Exp. 2, embryos in both groups were thawed and transferred to synchronous recipients without removing the cryoprotectant. Data were analyzed using chi-square analysis. In Exp. 1, the developmental rates of post-thaw embryos were similar in GLY (46/52, 88.5%) and EG (45/52, 86.5%); however, the hatching rate was significantly higher (P < 0.05) in embryos cryopreserved in EG (26/52, 50.0%) than in GLY (15/52, 28.8%). In Exp. 2, the conception rates of embryos were similar in both groups, GLY (7/15, 46.7%) and EG (6/15, 40.0%). In conclusion, after direct rehydration of embryos, the developmental ability of IVP bovine embryos cryopreserved in EG was superior to that of embryos cryopreserved in GLY in vitro. However, conception rates in vivo were similar in both groups. These results suggest that a lower concentration of glycerol might be still useful as a cryoprotectant for direct transfer of IVP bovine embryos.
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Kobayashi J, Suda Y, Takada N, Komine K, Kuroishi T, Kohsaka T, Sasada H, Sato E. 14 MOTILITY AND FERTILITY OF BULL SPERMATOZOA FROZEN IN EGG YOLK EXTENDER SUPPLEMENTED WITH LACTOFERRIN. Reprod Fertil Dev 2007. [DOI: 10.1071/rdv19n1ab14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Lactoferrin (Lf) is secreted by the prostate, seminal vesicles, and epididymis, and appears to represent a major component of the sperm-coating antigens that protect sperm. The aim of this study was to determine the effects of Lf used in semen extender on motility and fertility of bovine frozen semen. Semen samples were collected from three fertile Japanese Black sires. The semen collected was cooled and extended with egg yolk–Tris extender supplemented with glycerol and Lf (from bovine milk) to give final concentrations of 7% and 0, 10, 100, 500, 1000, or 2000 �g mL-1, respectively. After being extended, the semen was packaged in 0.5-mL straws, frozen, and transferred into liquid nitrogen. At least one week later, the frozen semen was thawed and washed mTALP containing caffeine. Motile sperm were separated by discontinuous 2-step (40 and 80%) Percoll gradient centrifugation. Sperm motility was calculated as the percentage of motile sperm separated by Percoll gradients relative to pre-separated sperm. Sperm motility character (motile sperm, progressive sperm) was analyzed by a CASA system (Hamilton Thorne Biosciences, Beverly, MA, USA). In the following experiment, we examined the effect of Lf added in the extender on improvement of semen fertility. The frozen semen from one sire extended with or without 500 �g mL-1 of Lf was prepared (99 straws with Lf, 99 straws without), distributed to three inseminators, and used to inseminate to 198 cows. The sperm motility and motility character were analyzed by ANOVA and Fisher's exact test. The field trials were evaluated by chi-square test. After selection of motile sperm with the Percoll gradient, examination of sperm motility revealed that addition of Lf in the extender increased sperm motility significantly (P < 0.05) compared to that in the control without Lf: 51.2–53.8% in semen with added Lf (100–2000 �g mL-1) vs. 39.6% in the control. CASA analysis showed that motile sperm and progressive sperm were improved significantly by the addition of Lf; the peak level was 500 �g mL-1 of Lf in the extender. The percentage of motile sperm in semen with added Lf was higher significantly (P < 0.01) than that of the control: with Lf of 100 and 500 �g mL-1, 50.8 and 56.0%, respectively, vs. 39.7% without Lf. The percentage of progressive sperm was also significantly higher (P < 0.05) than that of the control: with Lf of 100 and 500 �g mL-1, 18.8 and 19.0%, respectively, vs. 13.5% without Lf. In the next experiment, we performed field trials to assess the availability of Lf for artificial insemination. In total, the group with Lf showed some but not a significant increase in fertility rate (delivery cow/inseminated cow) compared with the control group without Lf: 56.6% vs. 52.5%, respectively. In conclusion, these results suggest that addition of Lf in sperm extender may be useful for improvement of sperm motility and motility character after freezing and thawing. In the present study, we used fertile bulls, but the concentration of intact Lf in the semen was unknown, which might be the reason why the effect of Lf on the fertility rate was not observed to be significant. In future experiments it would be valuable to demonstrate the effect of Lf in subfertile semen.
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Abstract
BACKGROUND/PURPOSE Recently, valine, which is one of the branched chain amino acids, has been reported to enhance liver regeneration after hepatectomy in the rat. The aim of this study was to investigate the effect of enteral valine supplementation on intestinal adaptation. MATERIALS/METHODS Seven-week-old male Lewis rats underwent a 90% small bowel resection. The rats were randomly divided into two groups: group V (valine-rich diet) and group S (standard rat chow), according to the diet. The rats were sacrificed at the operation day and on postoperative days (POD) 7, 14, 30, and 60. The metrics were body weight (BW), blood amino acids, urine organic acids, and morphology of the residual small intestine. RESULTS The BW and the intestinal wet weight, jejunal crypt depth, and proliferating cell nuclear antigen-positive cells in group V at POD 7 were significantly higher than those values in group S, while those in group V at POD 30 and 60 were smaller than those in group S. The urine methylmalonic acid (MMA) level in group V at POD 30 and 60 was much higher than in group S. CONCLUSION Valine enhanced intestinal adaptation after massive small bowel resection in the acute phase. However, the long-term supplementation disturbed intestinal adaptation, which might be due to the high production of MMA.
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Affiliation(s)
- N Takada
- Department of Pediatric Surgery, Reproductive and Developmental Medicine, Graduate School of Medical Sciences, Kyusyu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 912-8582, Japan.
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Matsuura T, Taguchi T, Hayashida M, Ogita K, Takada N, Nishimoto Y, Taguchi S, Uesugi T, Kondo T, Hirose R, Suita S. Relationship Between Real-Time Monitoring of the Graft Motility and Mucosal Histology in Swine Intestinal Transplantation. Transplant Proc 2006; 38:1851-2. [PMID: 16908303 DOI: 10.1016/j.transproceed.2006.06.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We studied the correlation between the motility and the mucosal histology of the small bowel seeking to detect rejection in an early stage by real-time monitoring using a swine model. Intestinal transplantation (ITx) was performed orthotopically using FK506 immunosuppression. The distal about 20 cm segment of the allograft was exteriorized as a Thiry-Vella stoma for biopsies. Strain gauge (SG) force transducers were attached to the graft for real-time monitoring of graft motility. Pigs without ITx were used as controls (group 1). Rejection was classified into four groups by histologic findings: nonrejection (group 2), mild rejection (group 3), moderate rejection (group 4), and severe rejection (group 5). Migrating motor complex (MMC) phase III was analyzed for the following parameters: duration, amplitude, interval, motility index, velocity, and frequency of propagation. In group 2, all parameters were almost the same as those for group 1. In contrast, groups 4 and 5 showed most parameters significantly lower than those in group 1. In group 3, the contractility of the MMC was not significantly altered, but the frequency of the propagation was decreased significantly. In conclusion, graft motility detected by a real-time SG method correlated with the grade of mucosal histology. This method is useful to detect rejection at an early stage by examining the frequency of MMC propagation.
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Affiliation(s)
- T Matsuura
- Department of Pediatric Surgery, Reproductive and Developmental Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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Affiliation(s)
- J Takanashi
- Department of Pediatrics, Graduate School of Medicine, Chiba University, Chiba 296-8602, Japan.
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Oikawa T, Takada N, Kikuchi T, Numabe T, Takenaka M, Horiuchi T. Evaluation of activation treatments for blastocyst production and birth of viable calves following bovine intracytoplasmic sperm injection. Anim Reprod Sci 2005; 86:187-94. [PMID: 15766799 DOI: 10.1016/j.anireprosci.2004.07.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2003] [Revised: 05/07/2004] [Accepted: 07/20/2004] [Indexed: 11/23/2022]
Abstract
The objective of this study was to compare the effectiveness of different methods of bovine oocyte activation following intracytoplasmic sperm injection (ICSI) in terms of oocyte cleavage and blastocyst rates, and calf production. Oocytes were harvested, post mortem, from the ovaries of Japanese Black heifers or cows. ICSI was carried out using a piezo-electric actuator. The injected or sham-injected oocytes that were assigned to three activation treatments, each replicated three times, were studied: (1) exposure to 5 microM ionomycin for 5 min (ionomycin); (2) exposure to 5 microM ionomycin for 5 min followed by culture in TCM199 for 3 h and a further 3h culture in 1.9 mM 6-dimethylaminopurine (DMAP-ionomycin+DMAP); (3) exposure to 7% ethanol in TCM199 for 5 min, 4 h after ICSI (ethanol). One or two blastocysts from the ionomycin+DMAP (8 recipients) and ethanol (17 recipients) oocyte activation treatments were non-surgically transferred into Holsteins for the study of calf production. The highest cleavage and blastocyst production rates were observed in the ionomycin+DMAP treatment (83.9% and 40.1%) by the ICSI. These rates were significantly (P<0.05) higher than those for the ionomycin oocyte activation treatment (57.6% and 18.2%) but did not differ from the ethanol treatment (75.6% and 29.4%). In the sham-injected, the highest blastocyst production rates were observed for the ionomycin+DMAP and ethanol treatments (10.7% and 11.3%). Pregnancy and birth rates for blastocysts derived from the ethanol oocyte activation treatment (58.8% and 47.4%) were significantly higher (P<0.05) than those of the ionomycin+DMAP treatment (12.5% and 9.2%). The results showed that post-ICSI oocyte activation with ethanol is more effective than activation with ionomycin alone or with ionomycin+DMAP for the production of viable blastocysts and calves.
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Affiliation(s)
- T Oikawa
- Miyagi Prefecture Animal Industry Experiment Station, Miyagi 989-6445, Japan
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Abstract
BACKGROUND/AIMS Gastroduodenostomy (Billroth I) or gastrojejunostomy (Billroth II) after distal gastrectomy is associated with duodenogastric reflux and remnant gastritis. This study sought to determine which reconstructive procedure is least likely to cause remnant gastritis and to determine the correlation between duodenogastric reflux and remnant gastritis. METHODOLOGY Sixty patients who underwent curative distal gastrectomy for gastric cancer were classified into three groups by reconstructive procedure: group A, Roux-Y (n=18); group B, Billroth I (n=25); group C, Billroth II (n=17). Intragastric bile reflux was monitored using the Bilitec 2000 14 days after surgery, and endoscopy was performed and a patient questionnaire was completed 12 weeks after surgery. RESULTS Bile reflux occurred in 23.9%, 40.4%, and 73.4% of the time (p<0.001), and remnant gastritis developed in 33%, 76%, and 100% of patients (p<0.001), in groups A, B, and C, respectively. Helicobacter pylori infection did not correlate with remnant gastritis (p=0.57). Symptoms following Roux-Y reconstruction were comparable to those following Billroth I and II reconstructions. CONCLUSIONS Roux-Y reconstruction following distal gastrectomy is superior to Billroth I and II reconstruction in preventing remnant gastritis because it reduces duodenogastric reflux.
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Affiliation(s)
- H Osugi
- Department of Gastroenterological Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
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Kobayashi J, Nagayama H, Uchida H, Oikawa T, Numabe T, Takada N, Sasada H, Sato E. Selection of sexed bovine embryos using rapid fluorescence in situ hybridisation. Vet Rec 2004; 154:789-91. [PMID: 15233457 DOI: 10.1136/vr.154.25.789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- J Kobayashi
- Miyagi Agricultural College, Sendai 982-0231, Japan
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