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Mandal MK, Koike S, Tsuchida C, Stanghellini H, Guerrero J, Sandoya Miranda GV, Klosterman SJ, Simko I, Subbarao KV. Distribution of Three Verticillium dahliae Races in Coastal California and Evaluation of Resistance in Lettuce. Plant Dis 2024. [PMID: 38506911 DOI: 10.1094/pdis-01-24-0193-re] [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] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Verticillium wilt, caused by Verticillium dahliae, is one of the most devastating soilborne diseases of lettuce (Lactuca sativa L.). There are three races of V. dahliae and each race has been characterized by markers representing race-specific effectors. Race 1 is differentiated by the presence of the functional secretory Ave1 effector. Similarly, races 2 and 3 are differentiated by effectors VdR2e and VdR3e, respectively. While the presence of race 1 in coastal California was well-established, the presence of effector-based races 2 and 3 was uncertain. This study therefore focused on characterizing 727 isolates collected from 142 ranches of symptomatic lettuce and other crops from coastal California. Based on this evaluation, 523 isolates were designated as race 1, 20 isolates as race 2, 23 isolates as race 3, and 17 as race undefined. Isolates representing other Verticillium species totaled 110, and 34 were non-Verticillium fungal species. Since the use of resistant cultivars is a key strategy to manage this disease, we evaluated 48 lettuce germplasm lines and one endive (Cichorium endivia L.) line, comprised of commercial cultivars (cv.) and breeding lines, including the race 1-resistant heirloom cv. La Brillante and the susceptible cv. Salinas as controls. Resistance against races 1, 2, and 3 along with VdLs17, a virulent isolate of V. dahliae from lettuce that is currently not assigned to a race was evaluated in replicated greenhouse experiments. Two crisphead lettuce lines, HL28 and HL29, exhibited resistance against race 1 and a partial resistance against race 2 while all other lines were highly susceptible to races 1 and 2 and VdLs17. The majority of lines exhibited higher resistance to race 3 relative to the other two races. This study documents the current distribution of the different races in coastal California. In addition, the sources of resistance currently being developed should be effective or partially effective against these races for targeted deployment as soon as they are available. Keywords: Lactuca sativa, avirulence, effectors, host resistance, disease severity.
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Affiliation(s)
- Mihir K Mandal
- UC Davis, 8789, Department of Plant Pathology, 1636 E Alisal St, Davis, California, United States, 95616-5270;
| | - Steve Koike
- Tri Cal, TriCal Diagnostics, 8100 Arroyo Circle, Gilroy, California, United States, 95020;
| | - Cayla Tsuchida
- Tri Cal, TriCal Diagnostics, Gilroy, California, United States;
| | | | | | - German Valentin Sandoya Miranda
- University of Florida Everglades Research and Education Center, 53702, Horticultural Sciences, 3200 E Palm Beach Road, Belle Glade, Florida, United States, 33430-4702;
| | | | - Ivan Simko
- USDA-ARS, CIPRU, 1636 E. Alisal St., Salinas, California, United States, 93905;
| | - Krishna V Subbarao
- University of California, Davis, Plant Pathology, 1636 E. Alisal St, Salinas, California, United States, 93905;
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Slinski S, Palumbo J, Koike S, Tsuchida C, Stanghellini H, Guerrero J. First report of Globisporangium uncinulatum (syn. Pythium uncinulatum) causing Pythium wilt of lettuce in Arizona. Plant Dis 2023. [PMID: 37822102 DOI: 10.1094/pdis-03-23-0472-pdn] [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] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
In 2021 and 2022, wilt symptoms were observed in lettuce (Lactuca sativa L.) fields in Yuma County, Arizona (AZ). Incidence was < 1% at all locations. Symptoms included stunting, yellowing and wilting of outer leaves. As disease progressed, outer leaves wilted and turned necrotic. In advanced stages, tap roots turned brown-gray, with few feeder roots. The crown remained intact until the plant collapsed. Symptomatic romaine and iceberg plants were collected from two sites. Necrotic roots were washed and then plated on amended corn meal agar (PARP) (Kannwischer et al. 1978). After 2-3 days, slow growing, coenocytic, submerged mycelia grew from these pieces. In culture, profuse oogonia formed with diameters of 30-39 (avg. = 33.7) µm and spiny protuberances (5-8 [avg. = 6.4] µm long) with thickened bases. Oospores were spherical and aplerotic, with diameters of 25-32 (avg. = 27.8) µm. Lettuce with identical symptoms from the Salinas Valley, California (CA) were also tested and similar isolates were recovered. Pathogenicity was tested using six AZ and one CA isolates. Inoculum was grown on barley seeds moistened with sterile distilled water, autoclaved three times (at 24 h intervals), then inoculated with colonized agar plugs and incubated at 20°C. Inoculum was used after two weeks. For each isolate, 12 3-week-old iceberg (cv. Speedway) and romaine (cv. Del Sol) plants were inoculated by placing 3-4 colonized barley seed next to the roots of the potted plants. Plants were maintained in a greenhouse at 24-26°C (daytime high) with ambient light. After eight days, all inoculated plants exhibited chlorotic lower leaves that later wilted. Both feeder roots and taproots showed brown-gray discoloration and were necrotic. Microscopy showed the presence of spiny oogonia in inoculated roots. Symptoms caused by the AZ and CA isolates were indistinguishable from each other. Isolations from necrotic tissue resulted in colonies morphologically identical to the original isolates. Twelve control plants inoculated with uncolonized barley seed developed no symptoms. DNA was extracted from all seven AZ and CA isolates pre-inoculation, and AZ isolate 2 recovered from both lettuce types post-inoculation for molecular characterization. The internal transcribed spacer (ITS) and cytochrome C oxidase subunit 2 (COX II) were amplified for the above isolates using primer sets ITS1/ITS4 (White et al. 1990) and FM66/FM58 (Villa et al. 2006), then sequenced. ITS of pre- and post-inoculated isolates for AZ (OQ054806 and OQ054807) and CA (OQ564388) matched 1078/1078 bases of Globisporangium uncinulatum (syn. Pythium uncinulatum; AY598712.2) with 99.8% identity. There were two SNPs in COX II for AZ isolate 1 (OR069239); all other isolates pre- and post- inoculation for AZ (OR069240 and OR069242) and CA (OR069241) uniformly matched 533/535 bases of G. uncinulatum (KJ595385.1) with 99.4% identity. Based on these molecular and morphological data, the isolates were identified as G. uncinulatum (Blok and Van Der Plaats-Niterink 1978; Van Der Plaats-Niterink 1981). To our knowledge, this is the first report of G. uncinulatum on lettuce in AZ. Designated as Pythium wilt, this disease is reported on lettuce in The Netherlands (Blok and Van Der Plaats-Niterink 1978), Japan (Matsuura, et al. 2010), and CA (Davis, et al. 1995). Arizona is an important lettuce growing region; if this disease becomes more prevalent, lettuce production in this region could be negatively impacted.
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Affiliation(s)
- Stephanie Slinski
- University of Arizona, Yuma Center of Excellence for Desert Agriculture, 6425 W 8th St, Yuma, Arizona, United States, 85364;
| | - John Palumbo
- University of Arizona-Yuma Agricultural Center, Entomology, Umniversity of Arizona, Yuma AG Center, Yuma, Arizona, United States, 85364;
| | - Steve Koike
- Tri Cal, TriCal Diagnostics, 8100 Arroyo Circle, Gilroy, California, United States, 95020;
| | - Cayla Tsuchida
- Tri Cal, TriCal Diagnostics, Gilroy, California, United States;
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Ivors K, Warres B, Ho T, Buhler J, Broome J, Jertberg M, Koike S. First Report of Berkeleyomyces basicola Causing Black Shoot Rot of Raspberry in Nursery Production in the United States and Worldwide. Plant Dis 2023. [PMID: 37430479 DOI: 10.1094/pdis-04-23-0799-pdn] [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] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
Commercial production of raspberry (Rubus ideaus) transplants is almost exclusively accomplished through clonal propagation. One system involves forcing young shoots to grow from roots. The shoots are cut and rooted in propagation trays and referred to as tray plants. Sanitation is important during tray plant production as this method carries some risk due to contamination by substrate pathogens. In May 2021, a new disease was observed on raspberry tray plant cuttings at one nursery location in California, and observed again in 2022 and 2023 but at a much lesser extent. Multiple cultivars were affected; however, up to 70% mortality was observed on cv. RH740.1. In less affected cultivars, mortality ranged from 5-20%. Symptoms included chlorotic leaves, lack of rooting, and blackening at the basal end of shoots, followed by death of the cutting. Affected propagation trays had inconsistent foliage and patchy growth. Chains of chlamydospores (two to eight spores in each chain) similar in morphology to Thielaviopsis species (Shew and Meyer 1992) were observed at the cut end of symptomatic tray plants using a microscope. Isolates were retrieved by incubating tissue on surface-disinfested (1% NaOCl) carrot discs in a humid chamber for 5 days until greyish black mycelium was observed (Yarwood 1946). Mycelium was transferred to acidified potato dextrose agar and formed a gray to black compact mycelial colony with both endoconidia and chlamydospores. Endoconidia were catenulate, single-celled with slightly rounded ends, colorless, and 10-20 µm x 3-5 µm in size; dark-colored chlamydospores were 10-15 µm x 5-8 µm in size. The ITS region of isolates 21-006 and 22-024 was amplified with ITS5 and ITS4 primers using a 48°C annealing temperature (White et al. 1990), Sanger sequenced (GenBank accession OQ359100) and yielded 100% match to Berkeleyomyces basicola accession MH855452. Pathogenicity was confirmed by dipping 80 grams of roots of cv. RH740.1 into a suspension of 106 conidia/mL of isolate 21-006 for 15 min. For the non-inoculated control, 80 grams of roots were dipped in water. Roots were then planted into trays of coir (Berger, Watsonville, CA). Six weeks after inoculation, twenty-four shoots were harvested from each treatment, stuck into propagation trays filled with coir and maintained in a humid chamber for 14-days to induce rooting. Tray plants were then harvested and assessed for root development, black basal shoot tips, and presence of chlamydospores. Forty-two percent of cuttings from the inoculated treatment had rotten basal tips and failed to root, in comparison to 8% of the cuttings from the non-inoculated control. Chlamydospores were visualized only on shoots that emerged from inoculated roots and B. basicola was isolated only from cuttings originating from inoculated roots. Post-inoculation isolates were confirmed as B. basicola using methods described above. To our knowledge, this is the first report of B. basicola infecting raspberry. Confirmation of this pathogen on tray plants is significant because of the potential impact this disease may have in commercial nursery production worldwide. In 2021, the value of the harvested raspberry crop in the U.S. totaled $531 M, of which California represented $421 M (USDA 2022). The value of the 2021 crop was highest in the U.S. ($531 M), followed by Russia ($512 M), Spain ($405 M) and Mexico ($332 M) (FAO 2021).
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Affiliation(s)
- Kelly Ivors
- Driscoll's, Global Plant Health, 151 Silliman Rd, Watsonville, California, United States, 95076-9459;
| | - Brooke Warres
- Driscoll's, Global Plant Health, Watsonville, California, United States;
| | - Thien Ho
- Driscoll's, Global Plant Health, WATSONVILLE, California, United States;
| | - Jason Buhler
- Driscoll's, Global Plant Health, Watsonville, California, United States;
| | - Jenny Broome
- Driscoll's, Global Plant Health, Watsonville, California, United States;
| | - Melody Jertberg
- Driscoll's, Nursery Plant Health, Redding, California, United States;
| | - Steve Koike
- Tri Cal, TriCal Diagnostics, 8100 Arroyo Circle, Gilroy, California, United States, 95020;
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluation of incidence, predictive factors and treatment considerations for asymptomatic genitourinary granulomas after intravesical bacillus Calmette-Guérin therapy. Actas Urol Esp 2023; 47:317-326. [PMID: 37272323 DOI: 10.1016/j.acuroe.2022.09.003] [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: 03/25/2022] [Revised: 08/08/2022] [Accepted: 08/10/2022] [Indexed: 06/06/2023]
Abstract
INTRODUCTION AND OBJECTIVES Although the complications of intravesical BCG treatment are well described, asymptomatic genitourinary granulomas after BCG therapy have rarely been reported and management strategy for these conditions remains controversial. The objective of this study is to evaluate the incidence rate of asymptomatic genitourinary granuloma formation mimicking bladder cancer recurrence after intravesical bacillus Calmette-Guérin (BCG) therapy and to identify the diagnostic and treatment strategies according to patient conditions. PATIENTS AND METHODS A retrospective review was conducted on 162 patients who underwent intravesical BCG therapy. For patients who developed granulomas, we evaluated the time interval between BCG instillation and the development of granuloma, the presence of acid-fast bacteria on pathology specimens, culture/polymerase chain reaction results, management strategies for the lesions, and clinical outcomes. RESULTS Asymptomatic genitourinary masses developed in 14 patients, of whom 5 underwent histological examinations and all were confirmed to have granulomatous inflammation. The affected organs included the kidney, bladder, prostate, and penis. While four of the five patients did not receive treatment for their granulomas, one patient was administered antituberculous medication to prevent worsening of the lesion during the perioperative period of the scheduled cystoprostatectomy. None of the patients experienced worsening or recurrence of granulomatous lesions. Patients who developed asymptomatic masses (n = 14) were significantly younger than those who did not (p = 0.0076) and multivariate analysis also showed that younger age was independently associated with the development of clinically suspicious lesions (p = 0.032); however, none of the parameters were associated with histologically confirmed granuloma formation. CONCLUSIONS Genitourinary granulomas mimicking recurrence of carcinoma may develop in nearly 10% of patients after intravesical BCG therapy. Most patients can be managed without potentially toxic antituberculosis therapy.
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Affiliation(s)
- T Soda
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan.
| | - Y Tashiro
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - S Koike
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - R Ikeuchi
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
| | - T Okada
- Department of Urology, Tazuke Kofukai Medical Research Institute Kitano Hospital, Osaka, Japan
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Soda T, Tashiro Y, Koike S, Ikeuchi R, Okada T. Evaluación de la incidencia, factores predictivos y consideraciones sobre el tratamiento de los granulomas genitourinarios asintomáticos después de la terapia intravesical con bacilo de Calmette-Guérin. Actas Urol Esp 2022. [DOI: 10.1016/j.acuro.2022.08.001] [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: 11/05/2022]
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Martínez-Rovira I, Seksek O, Bergs J, Hirayama R, Matsufuji N, Inaniwa T, Koike S, Shimokawa T, Prezado Y, Yousef I. OC-0095 Neon minibeam radiotherapy (Ne MBRT): investigating biological mechanisms with synchrotron light. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02471-9] [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: 11/25/2022]
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Kodithuwakku KAHT, Owada H, Miura H, Maruyama D, Hirano K, Suzuki Y, Kobayashi Y, Koike S. Effects of oral administration of timothy hay and psyllium on the growth performance and fecal microbiota of preweaning calves. J Dairy Sci 2021; 104:12472-12485. [PMID: 34538491 DOI: 10.3168/jds.2021-20259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/05/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022]
Abstract
The objective of this study was to evaluate the effects of oral administration of fiber from the first week of life on the growth and hindgut environment of preweaning calves. Twenty newborn female Holstein calves were divided into 2 groups as control and treatment. Calves in both groups were reared under the same feeding program except for oral fiber administration. Timothy hay and psyllium were mixed at a 50-to-6 ratio as a treatment diet for oral fiber administration. Calves in the treatment group were orally administered 50 g of fiber daily from 3 to 7 d of age and 100 g of fiber from 8 d of age until weaning. Feed intake and occurrence of diarrhea were recorded daily, and body weight (BW) was recorded weekly for the individual calf. Fresh feces were collected from calves at 7, 21, 35, 49, and 56 d of age to analyze fermentation parameters and microbiota to characterize the hindgut environment. Higher fiber intake in the treatment group due to oral administration of timothy and psyllium did not affect the starter intake and achieved higher BW at 21 d of age. The fecal pH, total volatile fatty acid, lactate, and ammonia nitrogen concentrations were not affected by oral fiber administration; meanwhile, the molar proportion of propionate was higher in the treatment group at 7 d of age. The difference in fecal microbiota in the calves subjected to the oral administration of fiber was observed within 21 d of life; Lactobacillus spp. and Prevotella spp. showed higher abundance, whereas that of Clostridium perfringens was decreased. These higher abundances of beneficial bacteria and lower abundance of pathogenic bacteria during early life may partly explain the higher BW of calves in the treatment group at 21 d of age. Furthermore, no adverse effect was observed for the BW and health status in the treatment group throughout the preweaning period. Therefore, early fiber feeding via oral administration potentially contributes to improving the hindgut environment in newborn calves, which leads to better growth of calves during the early stage of life.
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Affiliation(s)
| | - H Owada
- Central Research Institute for Feed and Livestock, ZEN-NOH, Kasama 319-0205, Japan
| | - H Miura
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - D Maruyama
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - K Hirano
- Central Research Institute for Feed and Livestock, ZEN-NOH, Kasama 319-0205, Japan
| | - Y Suzuki
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Y Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - S Koike
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan.
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Koike S, Ueno M, Miura H, Saegusa A, Inouchi K, Inabu Y, Sugino T, Guan LL, Oba M, Kobayashi Y. Rumen microbiota and its relation to fermentation in lactose-fed calves. J Dairy Sci 2021; 104:10744-10752. [PMID: 34218911 DOI: 10.3168/jds.2021-20225] [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] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/25/2021] [Indexed: 01/26/2023]
Abstract
In our previous studies, we revealed the effect of lactose inclusion in calf starters on the growth performance and gut development of calves. We conducted the present study as a follow-up study to identify the shift in rumen microbiota and its relation to rumen fermentation when calves are fed a lactose-containing starter. Thirty Holstein bull calves were divided into 2 calf starter treatment groups: texturized calf starter (i.e., control; n = 15) or calf starter in which starch was replaced with lactose at 10% (i.e., LAC10; n = 15) on a dry matter basis. All calves were fed their respective treatment calf starter ad libitum from d 7, and kleingrass hay from d 35. Rumen digesta were collected on d 80 (i.e., 3 wk after weaning) and used to analyze rumen microbiota and fermentation products. There was no apparent effect of lactose feeding on the α-diversity and overall composition of rumen microbiota. Amplicon sequencing and real-time PCR quantification of the 16S rRNA gene confirmed that the abundance of butyrate-producing bacteria (i.e., Butyrivibrio group and Megasphaera elsdenii) did not differ between the control and LAC10 groups. Conversely, the relative abundance of Mitsuokella spp., which produce lactate, succinate, and acetate, was significantly higher in the rumen of calves that were fed lactose, whereas the lactate concentration did not differ between the control and LAC10 groups. These findings suggest that the lactate production can be elevated by an increase of Mitsuokella spp. and then converted into butyrate, not propionate, since the proportion of propionate was lower in lactose-fed calves. In addition, we observed a higher abundance of Coriobacteriaceae and Pseudoramibacter-Eubacterium in the LAC10 group. Both these bacterial taxa include acetate-producing bacteria, and a positive correlation between the acetate-to-propionate ratio and the abundance of Pseudoramibacter-Eubacterium was observed. Therefore, the higher abundance of Coriobacteriaceae, Mitsuokella spp., and Pseudoramibacter-Eubacterium in the rumen of lactose-fed calves partially explains the increase in the proportion of rumen acetate that was observed in our previous study.
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Affiliation(s)
- S Koike
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589.
| | - M Ueno
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - H Miura
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
| | - A Saegusa
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - K Inouchi
- Dairy Technology Research Institute, Feed-Livestock and Guidance Department, The National Federation of Dairy Co-operative Associations, Nishi-shirakawa, Fukushima, Japan 969-0223
| | - Y Inabu
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - T Sugino
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashi-Hiroshima, Japan 739-8528
| | - L L Guan
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - M Oba
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5
| | - Y Kobayashi
- Department of Animal Science, Hokkaido University, Sapporo, Japan 060-8589
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Response of leukocyte to iodine-125 permanent prostate seed implantation predict PSA failure in patients with localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32717-8] [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: 11/28/2022] Open
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Ozawa Y, Santo N, Yagi Y, Nishiyama T, Yokoi T, Koike S, Nakamura K, Ishioka K, Ozu C, Toya K, Yorozu A, Saito S. Secondary bladder cancer arising after iodine-125 permanent seed implantation for localized prostate cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34033-7] [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: 11/25/2022] Open
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Konda S, Onodera R, Kanchanasatit E, Boonsaen P, Sawanon S, Nagashima K, Suzuki Y, Koike S, Kobayashi Y. Effect of cashew nut shell liquid feeding on fermentation and microbiota in the rumen of Thai native cattle and swamp buffaloes. Livest Sci 2019. [DOI: 10.1016/j.livsci.2019.06.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND To secure human resources for occupational medicine, it is important to analyse occupational physician retention trends and the factors associated with retention. However, little is currently known about this topic. AIMS To identify occupational physician retention trends, to identify factors associated with this retention and to discuss the policy implications of the findings. METHODS We analysed data from the biannual national physician census surveys conducted by the government of Japan from 2002 to 2014. In this study, those who chose 'working as an occupational physician' as their workplace/type of work from a pre-determined list in the survey questionnaire were considered full-time occupational physicians. We presented retention trends by calculating the annual retention rate for each set of two consecutive surveys. We then used logistic regression to identify factors associated with retention among occupational physicians. RESULTS The annual retention rate of full-time occupational physicians from 2012 to 2014 was estimated as 76%, which represents a 6% improvement in retention over the study period. The odds of continuing to practise as an occupational physician were higher for occupational physicians working in cities compared with those working in towns or villages. CONCLUSIONS Improving and facilitating smooth transitions between clinical practice and occupational medicine would help to secure human resources in occupational medicine, even if the current trend of low retention continues.
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Affiliation(s)
- S Koike
- Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, Tochigi, Japan.,Division of Public Health Center for Community Medicine, Jichi Medical University, Tochigi, Japan
| | - T Isse
- Section of Postgraduate Guidance, School of Medicine, University of Occupational and Environmental Health, Fukuoka, Japan
| | - H Kawaguchi
- Department of Biomedical Informatics, The University of Tokyo, Tokyo, Japan
| | - M Ogawa
- Health Service Center, Jichi Medical University, Tochigi, Japan
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Suzuki Y, Kubota K, Miura H, Haga S, Roh S, Koike S, Kobayashi Y. 135 The effect of chemerin as a host-derived factor on intestinal microbial activity in calves. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Suzuki
- Hokkaido University,Sapporo, Japan
| | - K Kubota
- Hokkaido University,Sapporo, Japan
| | - H Miura
- Hokkaido University,Sapporo, Japan
| | - S Haga
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization,Ibaraki, Japan
| | - S Roh
- Tohoku University,Sendai, Japan
| | - S Koike
- Hokkaido University,Sapporo, Japan
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Myint H, Kishi H, Iwahashi Y, Saburi W, Koike S, Kobayashi Y. Functional modulation of caecal fermentation and microbiota in rat by feeding bean husk as a dietary fibre supplement. Benef Microbes 2018; 9:963-974. [PMID: 30208728 DOI: 10.3920/bm2017.0174] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
A feeding study using rats was conducted to evaluate the utility of lablab bean husk and soya bean husk as sources of potential prebiotic fibre. Twenty 5-week-old Sprague Dawley rats were divided into 4 groups and fed one of the following diets for 3 weeks: purified diet (AIN93 G) containing 5% cellulose (CEL), or the same diet in which cellulose was replaced by corn starch (STA), lablab bean husk (LBH), or soya bean husk (SBH). Rats were sacrificed at 8 weeks of age and caecal digesta were collected. Feed intake, body weight, anatomical parameters, and caecal ammonia level did not differ significantly among diets. Rats on LBH and SBH showed higher concentrations of caecal short-chain fatty acid and lactate than those on CEL. Rats on CEL, SBH, and LBH exhibited lower caecal indole and skatole levels. LBH yielded increased caecal abundance of Akkermansia muciniphila and Oscillibacter relatives, as demonstrated by either qPCR, MiSeq, or clone library analysis. SBH favoured the growth of lactobacilli as assessed by both qPCR and MiSeq, and favoured the growth of bifidobacteria as assessed by MiSeq. In comparison with STA, LBH and SBH yielded lower caecal abundance of bacteria related to Dorea massiliensis, as demonstrated by qPCR, MiSeq, and clone library analysis. Both types of bean husk were found to contain oligosaccharides that might selectively stimulate the growth of beneficial bacteria. Based on these results, the two species of bean husk tested are considered potentially functional for promoting the gut health of monogastric animals.
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Affiliation(s)
- H Myint
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - H Kishi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - Y Iwahashi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - W Saburi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - S Koike
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
| | - Y Kobayashi
- 1 Graduate School of Agriculture, Hokkaido University, Kita 9 Nishi 9, Sapporo, Japan
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15
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Watabe Y, Suzuki Y, Koike S, Shimamoto S, Kobayashi Y. Cellulose acetate, a new candidate feed supplement for ruminant animals: In vitro evaluations. J Dairy Sci 2018; 101:10929-10938. [DOI: 10.3168/jds.2018-14969] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/16/2018] [Indexed: 11/19/2022]
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16
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Tochigi K, Masaki T, Nakajima A, Yamazaki K, Inagaki A, Koike S. Detection of arboreal feeding signs by Asiatic black bears: effects of hard mast production at individual tree and regional scales. J Zool (1987) 2018. [DOI: 10.1111/jzo.12564] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Tochigi
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | - T. Masaki
- Forestry and Forest Products Research Institute Tsukuba Ibaraki Japan
| | - A. Nakajima
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | | | - A. Inagaki
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
| | - S. Koike
- Tokyo University of Agriculture and Technology Fuchu, Tokyo Japan
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17
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Koike S, Barnett J, Jones PB, Richards M. Cognitive profiles in childhood and adolescence differ between adult psychotic and affective symptoms: a prospective birth cohort study. Psychol Med 2018; 48:11-22. [PMID: 28988550 PMCID: PMC5729848 DOI: 10.1017/s0033291717000393] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 11/06/2022]
Abstract
BACKGROUND Differences between verbal and non-verbal cognitive development from childhood to adulthood may differentiate between those with and without psychotic symptoms and affective symptoms in later life. However, there has been no study exploring this in a population-based cohort. METHOD The sample was drawn from the MRC National Survey of Health and Development, and consisted of 2384 study members with self-reported psychotic experiences and affective symptoms at the age of 53 years, and with complete cognitive data at the ages of 8 and 15 years. The association between verbal and non-verbal cognition at age 8 years and relative developmental lag from age 8 to 15 years, and both adult outcomes were tested with the covariates adjusted, and mutually adjusted for verbal and non-verbal cognition. RESULTS Those with psychotic experiences [thought interference (n = 433), strange experience (n = 296), hallucination (n = 88)] had lower cognition at both the ages of 8 and 15 years in both verbal and non-verbal domains. After mutual adjustment, lower verbal cognition at age 8 years and greater verbal developmental lag were associated with higher likelihood of psychotic experiences within individuals, whereas there was no association between non-verbal cognition and any psychotic experience. In contrast, those with case-level affective symptoms (n = 453) had lower non-verbal cognition at age 15 years, and greater developmental lag in the non-verbal domain. After adjustment, lower non-verbal cognition at age 8 years and greater non-verbal developmental lag were associated with higher risk of case-level affective symptoms within individuals. CONCLUSIONS These results suggest that cognitive profiles in childhood and adolescence differentiate psychiatric disease spectra.
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Affiliation(s)
- S. Koike
- MRC Unit for Lifelong Health and Ageing at
UCL, 33 Bedford Place, London WC1B 5JU,
UK
- University of Tokyo Institute for Diversity
& Adaptation of Human Mind (UTIDAHM), 3-8-1 Komaba,
Meguro-ku, Tokyo 153-8902, Japan
- Center for Evolutionary Cognitive
Sciences, Graduate School of Arts and Sciences, The University of
Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902,
Japan
| | - J. Barnett
- Department of Psychiatry,
University of Cambridge, Cambridge CB2
0SZ, UK
- Cambridge Cognition Ltd,
Cambridge CB25 9TU, UK
| | - P. B. Jones
- Department of Psychiatry,
University of Cambridge, Cambridge CB2
0SZ, UK
- CAMEO, Cambridgeshire & Peterborough NHS
Foundation Trust, Cambridge CB21 5EF,
UK
| | - M. Richards
- MRC Unit for Lifelong Health and Ageing at
UCL, 33 Bedford Place, London WC1B 5JU,
UK
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18
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Inabu Y, Saegusa A, Inouchi K, Koike S, Oba M, Sugino T. Plasma concentrations of glucagon-like peptide 1 and 2 in calves fed calf starters containing lactose. J Dairy Sci 2017; 100:9361-9371. [DOI: 10.3168/jds.2017-12910] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 07/24/2017] [Indexed: 02/03/2023]
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19
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Nakayama F, Umeda S, Fujita M, Imadome K, Kawano M, Koike S, Miura T, Yasuda T, Masuzawa M, Imai T. 605 Strong FGF1 signaling inhibits the proliferation, invasion and migration of murine angiosarcoma cell line ISOS-1. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.802] [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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20
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Ishida YI, Kayama T, Kibune Y, Nishimoto S, Koike S, Suzuki T, Horiuchi Y, Miyashita M, Itokawa M, Arai M, Ogasawara Y. Identification of an argpyrimidine-modified protein in human red blood cells from schizophrenic patients: A possible biomarker for diseases involving carbonyl stress. Biochem Biophys Res Commun 2017; 493:573-577. [PMID: 28867194 DOI: 10.1016/j.bbrc.2017.08.150] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 08/15/2017] [Accepted: 08/25/2017] [Indexed: 12/14/2022]
Abstract
Argpyrimidine (ARP) is an advanced glycation end product thought to be generated from a reaction between methylglyoxal and arginine residues in proteins. In this study, we observed marked accumulation of an approximately 56 kD protein, reactive to anti-ARP antibodies, in the red blood cells (RBCs) of some patients with refractory schizophrenia. This ARP-modified protein was purified from the blood of schizophrenic patients and identified as selenium binding protein 1 (SBP1) by LC-MS/MS. This is the first report of ARP-modified proteins accumulating in RBCs of patients with diseases involving carbonyl stress. We also observed high accumulation of ARP-modified SBP1 in the RBCs of patients with chronic kidney disease. Therefore, this modified protein may be a novel marker of carbonyl stress.
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Affiliation(s)
- Y I Ishida
- Department of Molecular and Cellular Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - T Kayama
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - Y Kibune
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - S Nishimoto
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - S Koike
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - T Suzuki
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan
| | - Y Horiuchi
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Miyashita
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Itokawa
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - M Arai
- Department of Psychiatry and Behavioral Sciences, Tokyo Metropolitan Institute of Medical Science, Kamikitazawa, Setagaya, Tokyo 156-8506, Japan
| | - Y Ogasawara
- Department of Analytical Biohemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Nishitokyo, Tokyo 204-8588, Japan.
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21
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Saegusa A, Inouchi K, Ueno M, Inabu Y, Koike S, Sugino T, Oba M. Effects of partial replacement of corn grain with lactose in calf starters on ruminal fermentation and growth performance. J Dairy Sci 2017. [DOI: 10.3168/jds.2017-12616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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22
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Koike S, Yamasaki K, Yamauchi T, Aiba S. 780 UVB and Poly(I:C) induce PAR-2 and enhance melanosome uptake by normal human epidermal keratinocytes though TLR3 signaling pathway. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.805] [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: 11/25/2022]
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23
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Oh S, Shintani R, Koike S, Kobayashi Y. Ginkgo fruit extract as an additive to modify rumen microbiota and fermentation and to mitigate methane production. J Dairy Sci 2017; 100:1923-1934. [PMID: 28088403 DOI: 10.3168/jds.2016-11928] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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: 08/26/2016] [Accepted: 11/18/2016] [Indexed: 11/19/2022]
Abstract
Ginkgo fruit, an unused byproduct of the ginkgo nut industry, contains antimicrobial compounds known as anacardic acids. Two major cultivars of ginkgo, Kyuju (K) and Tokuro (T), were evaluated for their potential as a feed additive for ruminants. In batch culture, we incubated a mixture of hay and concentrate in diluted rumen fluid with or without 1.6% (fruit equivalent) ginkgo fruit extract. We conducted another series of batch culture studies to determine the dose response of fermentation. We also conducted continuous culture using the rumen simulation technique (RUSITEC) with cultivar K and carried out a pure culture study to monitor the sensitivity of 17 representative rumen bacterial species to ginkgo extract and component phenolics. Although both K and T extracts led to decreased methane and increased propionate production, changes were more apparent with K extract, and were dose-dependent. Total gas production was depressed at doses ≥3.2%, suggesting that 1.6% was the optimal supplementation level. In RUSITEC fermentation supplemented with 1.6% ginkgo K, methane decreased by 53% without affecting total gas or total VFA production, but with decreased acetate and increased propionate. Disappearance of dry matter, neutral detergent fiber, and acid detergent fiber were not affected by ginkgo, but ammonia levels were decreased. Quantitative PCR indicated that the abundance of protozoa, fungi, methanogens, and bacteria related to hydrogen and formate production decreased, but the abundance of bacteria related to propionate production increased. MiSeq analysis (Illumina Inc., San Diego, CA) confirmed these bacterial changes and identified archaeal community changes, including a decrease in Methanobrevibacter and Methanomassiliicoccaceae and an increase in Methanoplanus. Pure culture study results supported the findings for the above bacterial community changes. These results demonstrate that ginkgo fruit can modulate rumen fermentation toward methane mitigation and propionate enhancement via microbial selection.
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Affiliation(s)
- S Oh
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - R Shintani
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - S Koike
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan
| | - Y Kobayashi
- Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, Japan.
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24
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Mitarai O, Nakamura K, Hasegawa M, Onchi T, Idei H, Fujisawa A, Hanada K, Zushi H, Higashijima A, Nakashima H, Kawasaki S, Matsuoka K, Koike S, Takahashi T, Tsutsui H. Comparative studies of inner and outer divertor discharges and a fueling study in QUEST. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2015.12.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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25
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Okada N, Fukunaga M, Yamashita F, Koshiyama D, Yamamori H, Ohi K, Yasuda Y, Fujimoto M, Watanabe Y, Yahata N, Nemoto K, Hibar DP, van Erp TGM, Fujino H, Isobe M, Isomura S, Natsubori T, Narita H, Hashimoto N, Miyata J, Koike S, Takahashi T, Yamasue H, Matsuo K, Onitsuka T, Iidaka T, Kawasaki Y, Yoshimura R, Watanabe Y, Suzuki M, Turner JA, Takeda M, Thompson PM, Ozaki N, Kasai K, Hashimoto R. Abnormal asymmetries in subcortical brain volume in schizophrenia. Mol Psychiatry 2016; 21:1460-6. [PMID: 26782053 PMCID: PMC5030462 DOI: 10.1038/mp.2015.209] [Citation(s) in RCA: 238] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 11/06/2015] [Accepted: 11/13/2015] [Indexed: 12/31/2022]
Abstract
Subcortical structures, which include the basal ganglia and parts of the limbic system, have key roles in learning, motor control and emotion, but also contribute to higher-order executive functions. Prior studies have reported volumetric alterations in subcortical regions in schizophrenia. Reported results have sometimes been heterogeneous, and few large-scale investigations have been conducted. Moreover, few large-scale studies have assessed asymmetries of subcortical volumes in schizophrenia. Here, as a work completely independent of a study performed by the ENIGMA consortium, we conducted a large-scale multisite study of subcortical volumetric differences between patients with schizophrenia and controls. We also explored the laterality of subcortical regions to identify characteristic similarities and differences between them. T1-weighted images from 1680 healthy individuals and 884 patients with schizophrenia, obtained with 15 imaging protocols at 11 sites, were processed with FreeSurfer. Group differences were calculated for each protocol and meta-analyzed. Compared with controls, patients with schizophrenia demonstrated smaller bilateral hippocampus, amygdala, thalamus and accumbens volumes as well as intracranial volume, but larger bilateral caudate, putamen, pallidum and lateral ventricle volumes. We replicated the rank order of effect sizes for subcortical volumetric changes in schizophrenia reported by the ENIGMA consortium. Further, we revealed leftward asymmetry for thalamus, lateral ventricle, caudate and putamen volumes, and rightward asymmetry for amygdala and hippocampal volumes in both controls and patients with schizophrenia. Also, we demonstrated a schizophrenia-specific leftward asymmetry for pallidum volume. These findings suggest the possibility of aberrant laterality in neural pathways and connectivity patterns related to the pallidum in schizophrenia.
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Affiliation(s)
- N Okada
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - M Fukunaga
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
| | - F Yamashita
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
| | - D Koshiyama
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Ohi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - M Fujimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Y Watanabe
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - N Yahata
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
| | - K Nemoto
- Department of Neuropsychiatry, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - D P Hibar
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - T G M van Erp
- Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA
| | - H Fujino
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
| | - M Isobe
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Isomura
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Natsubori
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Narita
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - N Hashimoto
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - J Miyata
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - S Koike
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Tokyo, Japan
| | - T Takahashi
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - H Yamasue
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - T Onitsuka
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - T Iidaka
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Kawasaki
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - R Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
| | - Y Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - M Suzuki
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - J A Turner
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neuroscience, Georgia State University, Atlanta, GA, USA
| | - M Takeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
| | - P M Thompson
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
| | - N Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - K Kasai
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - R Hashimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
| | - COCORO
- Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Division of Cerebral Integration, National Institute for Physiological Sciences, Aichi, Japan
- Division of Ultrahigh Field MRI, Institute for Biomedical Sciences, Iwate Medical University, Iwate, Japan
- Department of Psychiatry, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Radiology, Osaka University Graduate School of Medicine, Osaka, Japan
- Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
- Department of Neuropsychiatry, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
- Imaging Genetics Center, University of Southern California, Marina del Rey, CA, USA
- Department of Psychiatry and Human Behavior, University of California, Irvine, CA, USA
- Graduate School of Human Sciences, Osaka University, Osaka, Japan
- Department of Psychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
- Office for Mental Health Support, Division for Counseling and Support, The University of Tokyo, Tokyo, Japan
- Department of Neuropsychiatry, University of Toyama Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Aichi, Japan
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
- Department of Psychiatry, University of Occupational and Environmental Health, Fukuoka, Japan
- Department of Psychology, Georgia State University, Atlanta, GA, USA
- Department of Neuroscience, Georgia State University, Atlanta, GA, USA
- Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Osaka, Japan
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Saegusa A, Inouchi K, Ueno M, Inabu Y, Koike S, Sugino T, Oba M. 1297 Effect of lactose inclusion in calf starters on rumen fermentation of weaned calves. J Anim Sci 2016. [DOI: 10.2527/jam2016-1297] [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: 11/13/2022] Open
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27
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Ogasawara Y, Ishida YI, Takikawa M, Funaki Y, Suzuki T, Koike S. Corrigendum to “A simple high performance liquid chromatography method for quantitatively determining the reduced form of peroxiredoxin 2 and the mass spectrometric analysis of its oxidative status” [J. Chromatogr. B Analyt. Technol. Biomed. Life. Sci. 997 (2015) 136–141]. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1020:170. [DOI: 10.1016/j.jchromb.2016.03.010] [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: 11/30/2022]
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28
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Koike S. Clinical features and cosequences of RLS among the patients with CKD and hemodialysis. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.048] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Ogasawara Y, Ishida Y, Takikawa M, Funaki Y, Suzuki T, Koike S. A simple high performance liquid chromatography method for quantitatively determining the reduced form of peroxiredoxin 2 and the mass spectrometric analysis of its oxidative status. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 997:136-41. [PMID: 26113455 DOI: 10.1016/j.jchromb.2015.06.007] [Citation(s) in RCA: 6] [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: 04/07/2015] [Revised: 05/29/2015] [Accepted: 06/10/2015] [Indexed: 11/30/2022]
Abstract
Peroxiredoxins (Prxs) are a family of thiol peroxidases, which have been suggested to serve as biomarkers for diseases caused by oxidative stress. In this study, we established a high performance liquid chromatography (HPLC) method for quantifying the amount of Prx2 in red blood cells (RBCs). RBC proteins were separated using HPLC, and a single peak was detected that matched that produced by recombinant Prx2. Under improved conditions, the calibration curve for Prx2 (reduced form) was linear over the range of 0.5-20.0μg with a correlation coefficient of 0.999. The minimum detectable level of the recombinant Prx2 was 0.2μg, with a signal-to-noise ratio of 3 per 20μl of injection volume. SDS-PAGE and mass spectrometric analysis showed that the proteins comprising the peak were almost exclusively Prx2. Further high-resolution analysis using nanoLC-MS/MS demonstrated that the oxidation sensitive, Cys-51 was carbamidomethylated by iodoacetamide-alkylation during in-gel digestion but was not modified with sulfinic acid (-SO2H) or sulfonic acid (-SO3H). These results indicated that the separated Prx2 was the reduced form and not the hyperoxidized form. These basic experiments allowed us to determine the relative amounts of native Prx2 in RBCs taken from healthy subjects. The average levels of Prx2 in male and female subjects were 7.28ng/mg and 8.29ng/mg, respectively, and no significant difference was observed between the sexes. Therefore, the HPLC method with UV detection described herein offers a convenient method to quantitatively determine the levels of reduced form of Prx2 and its oxidative decrease in human RBCs.
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Affiliation(s)
- Y Ogasawara
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan.
| | - Yi Ishida
- Department of Molecular and Cellular Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - M Takikawa
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Y Funaki
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - T Suzuki
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - S Koike
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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Koike S, Soga M, Nemoto Y, Kozakai C. How are dung beetle species affected by deer population increases in a cool temperate forest ecosystem? J Zool (1987) 2014. [DOI: 10.1111/jzo.12138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- S. Koike
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - M. Soga
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - Y. Nemoto
- Tokyo University of Agriculture and Technology Fuchu Japan
| | - C. Kozakai
- Kanagawa Prefectural Museum of Natural History Odawara Japan
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Okamoto A, Oku T, Koike S, Sato Y, Ishii K, Kitajima S. Development of in situ energetic ion injector for magnetically confined plasmas using hydrogen storage electrode. Rev Sci Instrum 2014; 85:02B302. [PMID: 24593579 DOI: 10.1063/1.4825162] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To develop a compact ion injector made of hydrogen storage material, we investigate a plasma response for a positively biased hydrogen storage electrode in a small standard heliac device. When the bias voltage of the electrode increases, a positive potential between the electrode and the space potential on the magnetic surface emerges. The emission of hydrogen atom line also increases. To clarify the origin of the increase in emission, we designed an imaging system with sufficient temporal resolution.
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Affiliation(s)
- A Okamoto
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - T Oku
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S Koike
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Y Sato
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - K Ishii
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
| | - S Kitajima
- Department of Quantum Science and Energy Engineering, Tohoku University, Sendai 980-8579, Japan
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Takabe R, Baba M, Nakamura K, Du W, Khan MA, Koike S, Toko K, Hara KO, Usami N, Suemasu T. Fabrication and characterizations of phosphorus-doped n-type BaSi2epitaxial films grown by molecular beam epitaxy. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pssc.201300326] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Koike S, Sujino T, Ohmori H, Shimazaki K, Fukuyama E, Kanai T, Hibi T, Ono T. Gastric emptying rate in subjects with malocclusion examined by [13
C] breath test. J Oral Rehabil 2013; 40:574-81. [DOI: 10.1111/joor.12073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2013] [Indexed: 12/14/2022]
Affiliation(s)
- S. Koike
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - T. Sujino
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
- Department of General Internal Medicine; Saitama Medical University; Iruma-gun Saitama Japan
| | - H. Ohmori
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - K. Shimazaki
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
| | - E. Fukuyama
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
- JOY Orthodontic Clinic; Yokohama-shi Kanagawa Japan
| | - T. Kanai
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
| | - T. Hibi
- Division of Gastroenterology and Hepatology; Department of Internal Medicine; School of Medicine; Keio University; Shinjuku-ku Tokyo Japan
| | - T. Ono
- Orthodontic Science; Division of Oral Health Sciences; Graduate School; Tokyo Medical and Dental University; Bunkyo-ku Tokyo Japan
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Koike S, Watanabe T, Mitsui T, Takahashi T, Asai T. Heating Effects of Background Neutral Particles on a Translated Field-Reversed Configuration. Fusion Science and Technology 2013. [DOI: 10.13182/fst13-a16960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. Koike
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Watanabe
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Mitsui
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Takahashi
- Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - T. Asai
- College of Science and Technology, Nihon University, 1-8-14 Kanda-Surugadai, Tokyo, Japan
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Affiliation(s)
| | - Y. Yamaura
- Division of Environmental Resources; Graduate School of Agriculture; Hokkaido University; Sapporo; Hokkaido; Japan
| | - S. Koike
- Division of Environment Conservation; Graduate School of Agriculture; Tokyo University of Agriculture and Technology; Fuchu; Tokyo; Japan
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Affiliation(s)
- M. Soga
- Division of Environmental Resources, Graduate School of Agriculture; Hokkaido University; Sapporo; Japan
| | - S. Koike
- Tokyo University of Agriculture and Technology; Tokyo; Japan
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Abe K, Abgrall N, Ajima Y, Aihara H, Albert JB, Andreopoulos C, Andrieu B, Aoki S, Araoka O, Argyriades J, Ariga A, Ariga T, Assylbekov S, Autiero D, Badertscher A, Barbi M, Barker GJ, Barr G, Bass M, Bay F, Bentham S, Berardi V, Berger BE, Bertram I, Besnier M, Beucher J, Beznosko D, Bhadra S, Blaszczyk FDMM, Blondel A, Bojechko C, Bouchez J, Boyd SB, Bravar A, Bronner C, Brook-Roberge DG, Buchanan N, Budd H, Calvet D, Cartwright SL, Carver A, Castillo R, Catanesi MG, Cazes A, Cervera A, Chavez C, Choi S, Christodoulou G, Coleman J, Coleman W, Collazuol G, Connolly K, Curioni A, Dabrowska A, Danko I, Das R, Davies GS, Davis S, Day M, De Rosa G, de André JPAM, de Perio P, Delbart A, Densham C, Di Lodovico F, Di Luise S, Dinh Tran P, Dobson J, Dore U, Drapier O, Dufour F, Dumarchez J, Dytman S, Dziewiecki M, Dziomba M, Emery S, Ereditato A, Escudero L, Esposito LS, Fechner M, Ferrero A, Finch AJ, Frank E, Fujii Y, Fukuda Y, Galymov V, Gannaway FC, Gaudin A, Gendotti A, George MA, Giffin S, Giganti C, Gilje K, Golan T, Goldhaber M, Gomez-Cadenas JJ, Gonin M, Grant N, Grant A, Gumplinger P, Guzowski P, Haesler A, Haigh MD, Hamano K, Hansen C, Hansen D, Hara T, Harrison PF, Hartfiel B, Hartz M, Haruyama T, Hasegawa T, Hastings NC, Hastings S, Hatzikoutelis A, Hayashi K, Hayato Y, Hearty C, Helmer RL, Henderson R, Higashi N, Hignight J, Hirose E, Holeczek J, Horikawa S, Hyndman A, Ichikawa AK, Ieki K, Ieva M, Iida M, Ikeda M, Ilic J, Imber J, Ishida T, Ishihara C, Ishii T, Ives SJ, Iwasaki M, Iyogi K, Izmaylov A, Jamieson B, Johnson RA, Joo KK, Jover-Manas GV, Jung CK, Kaji H, Kajita T, Kakuno H, Kameda J, Kaneyuki K, Karlen D, Kasami K, Kato I, Kearns E, Khabibullin M, Khanam F, Khotjantsev A, Kielczewska D, Kikawa T, Kim J, Kim JY, Kim SB, Kimura N, Kirby B, Kisiel J, Kitching P, Kobayashi T, Kogan G, Koike S, Konaka A, Kormos LL, Korzenev A, Koseki K, Koshio Y, Kouzuma Y, Kowalik K, Kravtsov V, Kreslo I, Kropp W, Kubo H, Kudenko Y, Kulkarni N, Kurjata R, Kutter T, Lagoda J, Laihem K, Laveder M, Lee KP, Le PT, Levy JM, Licciardi C, Lim IT, Lindner T, Litchfield RP, Litos M, Longhin A, Lopez GD, Loverre PF, Ludovici L, Lux T, Macaire M, Mahn K, Makida Y, Malek M, Manly S, Marchionni A, Marino AD, Marteau J, Martin JF, Maruyama T, Maryon T, Marzec J, Masliah P, Mathie EL, Matsumura C, Matsuoka K, Matveev V, Mavrokoridis K, Mazzucato E, McCauley N, McFarland KS, McGrew C, McLachlan T, Messina M, Metcalf W, Metelko C, Mezzetto M, Mijakowski P, Miller CA, Minamino A, Mineev O, Mine S, Missert AD, Mituka G, Miura M, Mizouchi K, Monfregola L, Moreau F, Morgan B, Moriyama S, Muir A, Murakami A, Murdoch M, Murphy S, Myslik J, Nakadaira T, Nakahata M, Nakai T, Nakajima K, Nakamoto T, Nakamura K, Nakayama S, Nakaya T, Naples D, Navin ML, Nelson B, Nicholls TC, Nishikawa K, Nishino H, Nowak JA, Noy M, Obayashi Y, Ogitsu T, Ohhata H, Okamura T, Okumura K, Okusawa T, Oser SM, Otani M, Owen RA, Oyama Y, Ozaki T, Pac MY, Palladino V, Paolone V, Paul P, Payne D, Pearce GF, Perkin JD, Pettinacci V, Pierre F, Poplawska E, Popov B, Posiadala M, Poutissou JM, Poutissou R, Przewlocki P, Qian W, Raaf JL, Radicioni E, Ratoff PN, Raufer TM, Ravonel M, Raymond M, Retiere F, Robert A, Rodrigues PA, Rondio E, Roney JM, Rossi B, Roth S, Rubbia A, Ruterbories D, Sabouri S, Sacco R, Sakashita K, Sánchez F, Sarrat A, Sasaki K, Scholberg K, Schwehr J, Scott M, Scully DI, Seiya Y, Sekiguchi T, Sekiya H, Shibata M, Shimizu Y, Shiozawa M, Short S, Siyad M, Smith RJ, Smy M, Sobczyk JT, Sobel H, Sorel M, Stahl A, Stamoulis P, Steinmann J, Still B, Stone J, Strabel C, Sulak LR, Sulej R, Sutcliffe P, Suzuki A, Suzuki K, Suzuki S, Suzuki SY, Suzuki Y, Suzuki Y, Szeglowski T, Szeptycka M, Tacik R, Tada M, Takahashi S, Takeda A, Takenaga Y, Takeuchi Y, Tanaka K, Tanaka HA, Tanaka M, Tanaka MM, Tanimoto N, Tashiro K, Taylor I, Terashima A, Terhorst D, Terri R, Thompson LF, Thorley A, Toki W, Tomaru T, Totsuka Y, Touramanis C, Tsukamoto T, Tzanov M, Uchida Y, Ueno K, Vacheret A, Vagins M, Vasseur G, Wachala T, Walding JJ, Waldron AV, Walter CW, Wanderer PJ, Wang J, Ward MA, Ward GP, Wark D, Wascko MO, Weber A, Wendell R, West N, Whitehead LH, Wikström G, Wilkes RJ, Wilking MJ, Wilson JR, Wilson RJ, Wongjirad T, Yamada S, Yamada Y, Yamamoto A, Yamamoto K, Yamanoi Y, Yamaoka H, Yanagisawa C, Yano T, Yen S, Yershov N, Yokoyama M, Zalewska A, Zalipska J, Zambelli L, Zaremba K, Ziembicki M, Zimmerman ED, Zito M, Żmuda J. Indication of electron neutrino appearance from an accelerator-produced off-axis muon neutrino beam. Phys Rev Lett 2011; 107:041801. [PMID: 21866992 DOI: 10.1103/physrevlett.107.041801] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Indexed: 05/31/2023]
Abstract
The T2K experiment observes indications of ν(μ) → ν(e) appearance in data accumulated with 1.43×10(20) protons on target. Six events pass all selection criteria at the far detector. In a three-flavor neutrino oscillation scenario with |Δm(23)(2)| = 2.4×10(-3) eV(2), sin(2)2θ(23) = 1 and sin(2)2θ(13) = 0, the expected number of such events is 1.5±0.3(syst). Under this hypothesis, the probability to observe six or more candidate events is 7×10(-3), equivalent to 2.5σ significance. At 90% C.L., the data are consistent with 0.03(0.04) < sin(2)2θ(13) < 0.28(0.34) for δ(CP) = 0 and a normal (inverted) hierarchy.
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Affiliation(s)
- K Abe
- University of Tokyo, Institute for Cosmic Ray Research, Kamioka Observatory, Kamioka, Japan
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Oto J, Yamamoto K, Koike S, Imanaka H, Nishimura M. Effect of daily sedative interruption on sleep stages of mechanically ventilated patients receiving midazolam by infusion. Anaesth Intensive Care 2011; 39:392-400. [PMID: 21675058 DOI: 10.1177/0310057x1103900309] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Daily sedative interruption (DSI) may reduce excessive sedation and shorten the duration of mechanical ventilation. It is not clear, however, how DSI affects sleep characteristics. For patients receiving mechanical ventilation, we compared the effect on sleep quality of DSI and continuous sedation (CS). Twenty-two mechanically ventilated patients who were receiving midazolam by infusion were randomly assigned to two groups, DSI (n = 11) or CS (n = 11). In the DSI group, sedatives were interrupted until the patients awoke and expressed discomfort, after which midazolam or opioids were administered intermittently as needed during the daytime (0600 to 2100 hours); during the night (2100 to 0600) midazolam was administered intravenously to maintain Ramsay sedation scale 4 to 5. In the CS group, the sedatives were titrated to obtain Ramsay sedation scale 4 to 5 throughout the day. The polysomnography of each patient was recorded continuously over a 24 hour period. Sleep stages were analysed using Rechtschaffen and Kales criteria. In the DSI group, the amount of stage 3 and 4 non-rapid eye movement sleep (slow wave sleep) was longer (6 vs 0 minutes, P = 0.04) and rapid eye movement sleep was longer than in CS (54 vs 0 minutes, P = 0.02). In the CS group, total sleep time during night-time was longer (8.7 vs 7.3 hours, P = 0.047) and frequency of arousal was lower (2.2 vs 4.4 event/hour, P = 0.03) than those in the DSI group. All mechanically ventilated patients demonstrated abnormal sleep architecture, but, compared with CS, DSI increased the amount of slow wave sleep and rapid eye movement sleep.
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Affiliation(s)
- J Oto
- Emergency and Critical Care Medicine, The University of Tokushima Graduated School, Tokushima, Japan.
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Ehata S, Johansson E, Katayama R, Koike S, Watanabe A, Hoshino Y, Katsuno Y, Komuro A, Koinuma D, Kano MR, Yashiro M, Hirakawa K, Aburatani H, Fujita N, Miyazono K. Transforming growth factor-β decreases the cancer-initiating cell population within diffuse-type gastric carcinoma cells. Oncogene 2011. [PMID: 21132002 DOI: 10.1038/con.2010.546] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Stem cells in normal tissues and cancer-initiating cells (CICs) are known to be enriched in side population (SP) cells. However, the factors responsible for the regulation of expression of ABCG2, involved in efflux of dyes, in SP cells have not been fully investigated. Here, we characterized the SP cells within diffuse-type gastric carcinoma, and examined the effects of transforming growth factor-β (TGF-β) on SP cells. Diffuse-type gastric carcinoma cells established from four independent patients universally contained SP cells between 1 and 4% of total cells, which displayed greater tumorigenicity than non-SP cells did. TGF-β repressed the transcription of ABCG2 through direct binding of Smad2/3 to its promoter/enhancer, and the number of SP cells and the tumor-forming ability of cancer cells were decreased by TGF-β, although ABCG2 is not directly involved in the tumor-forming ability of SP cells. Cancer cells from metastatic site expressed much higher levels of ABCG2 and included a greater percentage of SP cells than parental cancer cells did. SP cells are thus responsible for the progression of diffuse-type gastric carcinoma, and TGF-β negatively contributes to maintain the CICs within the cancer.
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Affiliation(s)
- S Ehata
- Department of Molecular Pathology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
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Hirayama R, Uzawa A, Matsumoto Y, Noguchi M, Kase Y, Takase N, Ito A, Koike S, Ando K, Okayasu R, Furusawa Y. Induction of DNA DSB and its rejoining in clamped and non-clamped tumours after exposure to carbon ion beams in comparison to X rays. Radiat Prot Dosimetry 2011; 143:508-512. [PMID: 21148587 DOI: 10.1093/rpd/ncq478] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We studied double-strand breaks (DSB) induction and rejoining in clamped and non-clamped transplanted tumours in mice leg after exposure to 80 keV µm(-1) carbon ions and X rays. The yields of DSB in the tumours were analysed by a static-field gel electrophoresis. The OER of DSB after X rays was 1.68±0.31, and this value was not changed after 1 h rejoining time (1.40±0.26). These damages in oxygenated conditions were rejoined 60-70% within 1 h in situ. No difference was found between the exposure to X rays and carbon ions for the induction and rejoining of DSB. Thus, the values of OER and rejoined fraction after exposure to carbon ions were similar to those after X rays, and the calculated relative biological effectivenesses of carbon ion were around 1 under both oxygen conditions. The yields of DSB in vivo depend on exposure doses, oxygen conditions and rejoining time, but not on the types of radiation quality.
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Affiliation(s)
- R Hirayama
- Heavy-ion Radiobiology Research Group, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
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Watanabe Y, Suzuki R, Koike S, Nagashima K, Mochizuki M, Forster RJ, Kobayashi Y. In vitro evaluation of cashew nut shell liquid as a methane-inhibiting and propionate-enhancing agent for ruminants. J Dairy Sci 2011; 93:5258-67. [PMID: 20965342 DOI: 10.3168/jds.2009-2754] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2009] [Accepted: 07/10/2010] [Indexed: 11/19/2022]
Abstract
Cashew nut shell liquid (CNSL) containing antibacterial phenolic compounds was evaluated for its potency as a feed additive for ruminants. In experiment 1, ruminal responses to CNSL supplementation were assessed using a batch culture system. Rumen fluid from cattle was diluted with artificial saliva and incubated for 18h in a batch culture with a mixed diet containing a 30:70 hay:concentrate diet to which raw or heated CNSL was added at a final concentration of 500 μg/mL. In experiment 2, a Rusitec, using rumen fluid from the same cattle, was operated over a period of 7 d during which only raw CNSL was tested at concentrations of 0, 50, 100, or 200 μg/mL, and variations in fermentation and bacterial population were assessed. In experiment 3, a pure culture study was conducted using selected bacteria to determine their susceptibility to CNSL. In experiment 1, methane production was inhibited by raw CNSL (56.9% inhibition) but not by heated CNSL. Total volatile fatty acid concentration was not affected, whereas increased concentrations of propionate and decreased concentrations of acetate and butyrate were observed using either raw or heated CNSL. These changes were more obvious when raw CNSL was tested. In experiment 2, raw CNSL inhibited methanogenesis and increased propionate production in a dose-dependent manner, showing maximum methane inhibition (70.1%) and propionate enhancement (44.4%) at 200 μg/mL supplementation. Raw CNSL increased total volatile fatty acid concentration and dry matter digestibility. Raw CNSL also appeared to induce a dramatic shift in the population of rumen microbiota, based on decreased protozoa numbers and changes in quantitative PCR assay values for representative bacterial species. In experiment 3, using pure cultures, raw CNSL prevented the growth of hydrogen-, formate-, and butyrate-producing rumen bacteria, but not the growth of bacteria involved in propionate production. Based on these data, raw CNSL, rich in the antibacterial phenolic compound anacardic acid, is a potential candidate feed additive with selective activity against rumen microbes, leading to fermentation that results in decreased methane and enhanced propionate production.
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Affiliation(s)
- Y Watanabe
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Japan
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Ehata S, Johansson E, Katayama R, Koike S, Watanabe A, Hoshino Y, Katsuno Y, Komuro A, Koinuma D, Kano MR, Yashiro M, Hirakawa K, Aburatani H, Fujita N, Miyazono K. Transforming growth factor-β decreases the cancer-initiating cell population within diffuse-type gastric carcinoma cells. Oncogene 2010; 30:1693-705. [PMID: 21132002 DOI: 10.1038/onc.2010.546] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stem cells in normal tissues and cancer-initiating cells (CICs) are known to be enriched in side population (SP) cells. However, the factors responsible for the regulation of expression of ABCG2, involved in efflux of dyes, in SP cells have not been fully investigated. Here, we characterized the SP cells within diffuse-type gastric carcinoma, and examined the effects of transforming growth factor-β (TGF-β) on SP cells. Diffuse-type gastric carcinoma cells established from four independent patients universally contained SP cells between 1 and 4% of total cells, which displayed greater tumorigenicity than non-SP cells did. TGF-β repressed the transcription of ABCG2 through direct binding of Smad2/3 to its promoter/enhancer, and the number of SP cells and the tumor-forming ability of cancer cells were decreased by TGF-β, although ABCG2 is not directly involved in the tumor-forming ability of SP cells. Cancer cells from metastatic site expressed much higher levels of ABCG2 and included a greater percentage of SP cells than parental cancer cells did. SP cells are thus responsible for the progression of diffuse-type gastric carcinoma, and TGF-β negatively contributes to maintain the CICs within the cancer.
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Affiliation(s)
- S Ehata
- Department of Molecular Pathology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
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Koike S, Takizawa R, Nishimura Y, Takayanagi Y, Takano Y, Kinou M, Araki T, Kasai K. P8-19 Prefrontal hemodynamic change in differential clinical staging of schizophrenia. A multi-channel near-infrared spectroscopy (NIRS) study. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60622-0] [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: 11/29/2022]
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Nagai T, Tada M, Kirihara K, Koike S, Takano Y, Araki T, Kasai K. P4-1 Mismatch negativity in patients with at-risk mental state and first-episode schizophrenia patients: a preliminary study. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60496-8] [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: 11/28/2022]
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Kanoto M, Oda A, Hosoya T, Nemoto K, Ishida A, Nasu T, Koike S, Aoyagi M. Impact of superselective transarterial infusion therapy of high-dose cisplatin on maxillary cancer with orbital invasion. AJNR Am J Neuroradiol 2010; 31:1390-4. [PMID: 20360344 DOI: 10.3174/ajnr.a2082] [Citation(s) in RCA: 18] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE We have been performing the superselective transarterial infusion of high-dose cisplatin for advanced maxillary cancer since 1998 and the local control rate, disease free survival rate, and organ preservation have improved markedly compared with our former therapy. This study evaluates the effectiveness of superselective transarterial infusion therapy by using high-dose cisplatin on maxillary cancer with orbital invasion. MATERIALS AND METHODS We treated 23 patients with maxillary cancer by using superselective transarterial infusion therapy with high-dose cisplatin and concomitant radiation therapy for 10 years. Of all patients, 15 showed orbital invasion, with 11 of these tumors fed by both internal maxillary and ophthalmic arteries. In all patients, we performed superselective transarterial infusion therapy via the internal maxillary artery and/or the other feeding branches from the external carotid artery. After the operation, we determined whether a pCR had occurred by checking for the presence of viable cells. In addition, we calculated the overall survival rate, preservation rate of the eyeball, and disease-free survival rate. RESULTS For all 23 patients, pCR and overall survival rates were 95.7% and 78.4%, respectively. To date, 2 of these patients died of lung metastasis without local recurrence. For the 15 patients with orbital invasion, the respective pCR and disease-free survival rates were 93.3% and 87.5%. Eyeballs were preserved in all patients, and local recurrence occurred in only 1 patient, at the inferior wall of the maxillary sinus (not in the orbit). CONCLUSIONS Superselective transarterial infusion therapy with high-dose cisplatin remarkably improved the local control rate and disease-free survival rate of maxillary cancer. Even in patients with orbital invasion, a high local control rate was achieved, with preservation of the eyeball, through infusion only into branches of the external carotid artery.
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Affiliation(s)
- M Kanoto
- Department of Diagnostic Radiology, Yamagata University, Yamagata, Japan.
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Masunaga S, Ando K, Uzawa A, Hirayama R, Furusawa Y, Koike S, Ono K. The Responses of Quiescent Cell Populations in Solid Tumors to 290 MeV/u Carbon Ion Beam Irradiation In Vivo, Compared With Those of Total Cell Populations. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1944] [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: 10/22/2022]
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Masunaga S, Ando K, Uzawa A, Hirayama R, Furusawa Y, Koike S, Ono K. 918 POSTER The responses of quiescent cell populations in solid tumors to 290 MeV/u carbon ion beam irradiation in vivo, compared with those of total cell populations. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70557-8] [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: 11/29/2022] Open
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Koike S, Krapac IG, Oliver HD, Yannarell AC, Chee-Sanford JC, Aminov RI, Mackie RI. Monitoring and source tracking of tetracycline resistance genes in lagoons and groundwater adjacent to swine production facilities over a 3-year period. Appl Environ Microbiol 2007; 73:4813-23. [PMID: 17545324 PMCID: PMC1951052 DOI: 10.1128/aem.00665-07] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.8] [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: 11/20/2022] Open
Abstract
To monitor the dissemination of resistance genes into the environment, we determined the occurrence of tetracycline resistance (Tc(r)) genes in groundwater underlying two swine confinement operations. Monitoring well networks (16 wells at site A and 6 wells at site C) were established around the lagoons at each facility. Groundwater (n = 124) and lagoon (n = 12) samples were collected from the two sites at six sampling times from 2000 through 2003. Total DNA was extracted, and PCR was used to detect seven Tc(r) genes [tet(M), tet(O), tet(Q), tet(W), tet(C), tet(H), and tet(Z)]. The concentration of Tc(r) genes was quantified by real-time quantitative PCR. To confirm the Tc(r) gene source in groundwater, comparative analysis of tet(W) gene sequences was performed on groundwater and lagoon samples. All seven Tc(r) genes were continually detected in groundwater during the 3-year monitoring period at both sites. At site A, elevated detection frequency and concentration of Tc(r) genes were observed in the wells located down-gradient of the lagoon. Comparative analysis of tet(W) sequences revealed that the impacted groundwater contained gene sequences almost identical (99.8% identity) to those in the lagoon, but these genes were not found in background libraries. Novel sequence clusters and unique indigenous resistance gene pools were also found in the groundwater. Thus, antibiotic resistance genes in groundwater are affected by swine manure, but they are also part of the indigenous gene pool.
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Affiliation(s)
- S Koike
- Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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Asai T, Koike S, Seo K, Nunome H, Sakashita R. AERODYNAMICS OF KNUCKLE EFFECT IN SOCCER. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70190-2] [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: 11/25/2022]
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Noda D, Itoh S, Watanabe Y, Inamitsu M, Dennler S, Itoh F, Koike S, Danielpour D, ten Dijke P, Kato M. ELAC2, a putative prostate cancer susceptibility gene product, potentiates TGF-beta/Smad-induced growth arrest of prostate cells. Oncogene 2006; 25:5591-600. [PMID: 16636667 DOI: 10.1038/sj.onc.1209571] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [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: 02/03/2023]
Abstract
Transforming growth factor-beta (TGF-beta) elicits a potent growth inhibitory effect on many normal cells by binding to specific serine/threonine kinase receptors and activating specific Smad proteins, which regulate the expression of cell cycle genes, including the p21 cyclin-dependent kinase (CDK) inhibitor gene. Interestingly, cancer cells are often insensitive to the anti-mitogenic effects of TGF-beta for which the molecular mechanisms are not well understood. In this study, we found that the candidate prostate cancer susceptibility gene ELAC2 potentiates TGF-beta/Smad-induced transcriptional responses. ELAC2 associates with activated Smad2; the C-terminal MH2 domain of Smad2 interacts with the N-terminal region of ELAC2. Small interfering siRNA-mediated knock-down of ELAC2 in prostate cells suppressed TGF-beta-induced growth arrest. Moreover, ELAC2 was shown to specifically associate with the nuclear Smad2 partner, FAST-1 and to potentiate the interaction of activated Smad2 with transcription factor Sp1. Furthermore, activation of the p21 CDK inhibitor promoter by TGF-beta is potentiated by ELAC2. Taken together our data indicate an important transcriptional scaffold function for ELAC2 in TGF-beta/Smad signaling mediated growth arrest.
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Affiliation(s)
- D Noda
- Department of Experimental Pathology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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