1
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Yokoyama T, Kitamura Y, Hatanaka M, Arai Y, Tujita Y, Tasaki S, Kuroda K, Asakuma J, Horiguchi A, Ito K. [A Case of Massive Prostate Abscess Treated by Transperineal Drainage]. Hinyokika Kiyo 2022; 68:123-127. [PMID: 35613901 DOI: 10.14989/actauroljap_68_4_123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The patient was an 81-year-old man who visited a clinic for fever and lower abdominal pain. He was subsequently diagnosed with prostatitis based on computed tomography (CT) findings that showed swelling of the prostate. Despite treatment with antibacterial therapy, his symptoms did not improve significantly. Since the patient also had myelodysplastic syndrome, he was transferred to our hospital and subsequently diagnosed with prostate abscess based on findings on magnetic resonance imaging (MRI). The abscess had spread widely from the dorsal side of the trigone of the bladder to anterior wall of the rectum. Transperineal drainage was performed to preserve the urethral mucosa of the prostatic urethra. Considering the shape of the abscess cavity, one pigtail catheter was placed in the prostate and another was placed transperineally on the dorsal side of the trigone of the bladder. Cystostomy was performed at the same time. Culture of the abscess revealed the presence of Staphylococcus aureus. As there was little exudate from the abscess 9 days after drainage, the pigtail catheter on the dorsal side of the trigone of the bladder was removed following an injection of minocycline into the abscess. CT showed shrinkage of the abscess 4 days later, and the remaining intraprostatic pigtail catheter was removed after an injection of minocycline. The cystostomy pigtail catheter was subsequently removed since the patient was able to urinate smoothly after clamping. MRI confirmed the disappearance of the abscess cavity 2 months later.
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Affiliation(s)
| | | | - Mina Hatanaka
- The Department of Urology, National Defense Medical College
| | - Yuichi Arai
- The Department of Urology, National Defense Medical College
| | - Yujiro Tujita
- The Department of Urology, National Defense Medical College
| | | | - Kenji Kuroda
- The Department of Urology, National Defense Medical College
| | | | - Akio Horiguchi
- The Department of Urology, National Defense Medical College
| | - Keiichi Ito
- The Department of Urology, National Defense Medical College
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2
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Hatanaka M. Optical activities of helical polymers: a crystal orbital theory based on Wannier functions. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02843-9] [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: 11/29/2022]
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3
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Arai Y, Kitamura Y, Miyai K, Hatanaka M, Hashimoto H, Horiguchi A, Ito K. Long-term disease control of metastatic type 2 papillary renal cell carcinoma using local treatment and molecular targeted therapy: A case report. Mol Clin Oncol 2021; 14:71. [PMID: 33732457 PMCID: PMC7907800 DOI: 10.3892/mco.2021.2233] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 01/29/2021] [Indexed: 01/20/2023] Open
Abstract
A 46-year-old man underwent right partial nephrectomy for type 2 papillary renal cell carcinoma (PRCC) in 2011. Lung metastasis and lymph node (LN) metastases around the inferior vena cave appeared in 2012. A right radical nephrectomy and extensive LN dissection was performed and the resection of lung metastasis was performed one month after the nephrectomy. Mediastinal LN metastases occurred in 2013, and resection of the affected LNs was performed. Sunitinib and zoledronic acid was started in 2014 because mediastinal LN swelling and multiple bone metastases appeared. Sunitinib treatment was stopped soon after due to adverse events and axitinib treatment was started. Axitinib was effective and the patient had stable disease for 30 months. Adverse events were successfully controlled by dose reduction and periodic drug withdrawal schedules (for example, 5 days on, 2 days off). Axitinib was further continued for 19 months as the metastatic lesions had progressed slowly. Temsirolimus treatment was started in 2019, but it was stopped after three cycles due to interstitial pneumonia. The patient died 80 months after the initial recurrence. Using multidisciplinary treatment, durable disease control was achieved in a patient with metastatic type 2 PRCC.
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Affiliation(s)
- Yuichi Arai
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Yosuke Kitamura
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Kosuke Miyai
- Department of Laboratory Medicine, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Mina Hatanaka
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Hirofumi Hashimoto
- Department of Surgery, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Akio Horiguchi
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Keiichi Ito
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
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4
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Domon K, Puripat M, Fujiyoshi K, Hatanaka M, Kawashima SA, Yamatsugu K, Kanai M. Catalytic Chemoselective O-Phosphorylation of Alcohols. ACS Cent Sci 2020; 6:283-292. [PMID: 32123747 PMCID: PMC7047436 DOI: 10.1021/acscentsci.9b01272] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Indexed: 05/16/2023]
Abstract
Phosphorylation of alcohols is a fundamentally important reaction in both life science and physical science. Product phosphate monoesters play key roles in living organisms, natural products, pharmaceuticals, and organic materials. Most of the chemical methods to date for synthesizing phosphate monoesters, however, require multistep sequences or are limited to specific types of substrates possibly due to harsh conditions. An alternative way to enable the simple production of phosphate monoesters from highly functionalized precursor alcohols is, thus, highly desired. We report herein a catalytic phosphorylation of alcohols with high functional group tolerance using tetrabutylammonium hydrogen sulfate (TBAHS) and phosphoenolpyruvic acid monopotassium salt (PEP-K) as the catalyst and phosphoryl donor, respectively. This method enables the direct introduction of a nonprotected phosphate group to the hydroxy group of a diverse menu of alcohol substrates, including functionalized small molecules, carbohydrates, and unprotected peptides. Nuclear magnetic resonance, mass spectrometric, and density functional theory analyses suggest that an unprecedented mixed anhydride species, generated from PEP-K and TBAHS, acts as an active phosphoryl donor in this reaction. This operationally simple and chemoselective catalytic phosphorylation allows for the efficient production of densely functionalized O-phosphorylated compounds, which are useful in diverse fields including biology and medicine.
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Affiliation(s)
- K. Domon
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo,
Bunkyo-ku, Tokyo 113-0033, Japan
| | - M. Puripat
- Institute
for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - K. Fujiyoshi
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo,
Bunkyo-ku, Tokyo 113-0033, Japan
| | - M. Hatanaka
- Institute
for Research Initiatives, Division for Research Strategy, Nara Institute of Science and Technology (NAIST), 8916-5, Takayama-cho, Ikoma, Nara 630-0192, Japan
- Graduate
School of Science and Technology, Data Science Center, NAIST, 8916-5, Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - S. A. Kawashima
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo,
Bunkyo-ku, Tokyo 113-0033, Japan
| | - K. Yamatsugu
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo,
Bunkyo-ku, Tokyo 113-0033, Japan
| | - M. Kanai
- Graduate
School of Pharmaceutical Sciences, The University
of Tokyo, 7-3-1 Hongo,
Bunkyo-ku, Tokyo 113-0033, Japan
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5
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Takekawa K, Horiguchi A, Hamamoto K, Hirano Y, Hatanaka M, Arai Y, Ojima K, Shinchi M, Asano T, Numazaki S, Ito K. [A CASE OF NEO-MEATAL STENOSIS AFTER PENECTOMY FOR PENILE CANCER, REPAIRED BY BLANDY PERINEAL URETHROSTOMY]. Nihon Hinyokika Gakkai Zasshi 2020; 111:164-168. [PMID: 34670918 DOI: 10.5980/jpnjurol.111.164] [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] [Indexed: 06/13/2023]
Abstract
Surgical resection is the standard treatment for the management of localized penile cancer and a neo-urethral meatus is generally created on the penile stump or perineum. Neo-urethral meatus is often stenosed and requires repeated transurethral manipulations such as dilation and urethrotomy. These procedures are generally futile and are associated with poor quality of life. Here, we report a case of penile cancer that developed a neo-meatal stenosis after total penectomy, which was subsequently salvaged by perineal urethrostomy using Blandy technique. A 72-year-old male who was diagnosed with localized penile cancer, underwent total penectomy and creation of neo-meatus on the perineum. Neo-meatus stenosis had developed in the patient and he received repeated urethral dilations without any success. Finally, when the patient was unable to void, he was referred to us for the amelioration of meatal stenosis through the placement of a suprapubic catheter. Because the condition of the residual bulbar urethra was adequate and its length was enough, we planned to create a non-transecting perineal urethrostomy by Blandy technique. An inverted U-shaped perineal incision was made, and a skin flap was created. The scarred neo-meatus and spongiofibrosis at the distal bulbar urethra were completely excised. The residual bulbar urethra was exposed, and a longitudinal ventral incision of 4 cm was made. The edge of the bare urethral mucosa and tunica albuginea of the corpus spongiosum were sutured by 4-0 PDS for hemostasis. The apex of the U-shaped skin flap was brought to the proximal margin of the urethrotomy and a tension-free anastomosis was created between the skin flap and the urethral plate. Thereafter, the skin of the perineum was sutured to the open longitudinal urethrotomy. The patient started to void on the 5th day post-surgery. The subject could void without the help of any intervention and did not require any instrument, sixteen weeks after the surgery.
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Affiliation(s)
| | | | | | - Yuji Hirano
- Department of Urology, National Defense Medical College
| | - Mina Hatanaka
- Department of Urology, National Defense Medical College
| | - Yuichi Arai
- Department of Urology, National Defense Medical College
| | | | | | | | | | - Keiichi Ito
- Department of Urology, National Defense Medical College
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Affiliation(s)
- R. Sata
- Department of Chemistry, Kindai University, Higashi-Osaka 577-8502, Japan
| | - H. Suzuki
- Department of Chemistry, Kindai University, Higashi-Osaka 577-8502, Japan
| | - N. Ueno
- Department of Chemistry, Kindai University, Higashi-Osaka 577-8502, Japan
| | - Y. Morisawa
- Department of Chemistry, Kindai University, Higashi-Osaka 577-8502, Japan
| | - M. Hatanaka
- Institute for Research Initiatives, Graduate School of Science and Technology, and Data Science Center, Nara Institute of Science and Technology (NAIST), Ikoma 630-0192, Japan
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi 332-0012, Japan
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7
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Fujii K, Hatanaka M, Higashi Y, Kanekura T. Selection of suitable cases for random skin biopsy for the diagnosis for intravascular large B cell lymphoma. Eur J Cancer 2019. [DOI: 10.1016/s0959-8049(19)30557-x] [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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8
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Okubo K, Sato A, Nakamoto K, Hatanaka Y, Isono M, Hatanaka M, Suyama Y, Shinmoto H, Asano T. Bosniak Category III Renal Cysts Caused by Crizotinib in an Anaplastic Lymphoma Kinase Gene-Rearranged Non-Small Cell Lung Cancer Patient. Urology 2018; 121:e3-e4. [PMID: 30142403 DOI: 10.1016/j.urology.2018.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
Abstract
Bosniak category III renal cystic masses are often treated with surgical resection because of high risk of malignancy. Crizotinib is an anaplastic lymphoma kinase (ALK) inhibitor used to treat ALK gene-rearranged non-small cell lung cancer and reported to be associated with complex renal cyst formation. We herein report a case of Bosniak category III renal cysts occurred in a crizotinib-treated ALK gene-rearranged non-small cell lung cancer patients. The cysts regressed spontaneously after cessation of crizotinib and we could thus avoid unnecessary surgical resection.
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Affiliation(s)
- Kazuki Okubo
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Akinori Sato
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan.
| | - Keitaro Nakamoto
- Department of Respiratory medicine, Fukujuji Hospital, Kiyose, Tokyo 204-8522, Japan
| | - Yuki Hatanaka
- Department of Radiology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Makoto Isono
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Mina Hatanaka
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Yohsuke Suyama
- Department of Radiology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Hiroshi Shinmoto
- Department of Radiology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
| | - Tomohiko Asano
- Department of Urology, National Defense Medical College, Tokorozawa, Saitama 359-8513, Japan
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9
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Hatanaka M, Yamamoto K, Suzuki N, Iio S, Takara T, Morita H, Takimoto T, Nakamura T. Effect of Bacillus subtilis C-3102 on loose stools in healthy volunteers. Benef Microbes 2018; 9:357-365. [PMID: 29482338 DOI: 10.3920/bm2017.0103] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ingestion of Bacillus subtilis C-3102 spores (C-3102) has relieved the symptoms of diarrhoea in piglets and changed the composition of gut microbiota in humans. Recently, it was suggested that the composition of the human gut microbiota affects stool consistency. In this study, a double-blind, randomised, placebo-controlled trial was conducted to assess the preventive effects of chronic diarrhoea in healthy volunteers with loose stools by ingestion of C-3102. The results showed that oral doses of C-3102 tablets significantly decreased the Bristol Stool Scale score and stool frequency, and also significantly improved abdominal sounds. With regard to gut microbiota, the relative abundance of Lachnospira, Actinomyces and SMB53 were significantly changed. This study shows that C-3102 could be effective for treating loose stools (Trial registration: UMIN000022583, http://tinyurl.com/ya4refqn ).
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Affiliation(s)
- M Hatanaka
- 1 Department of Microbiological Flora Techinology, Core Technology Laboratories, Asahi group holdings Ltd., 5-11-10 Fuchinobe, Chuo-ku, Sagamihara-shi 252-0206, Kanagawa, Japan
| | - K Yamamoto
- 2 R&D Department, Orthomedico Inc., 2F Sumitomo Fudosan Korakuen Bldg., 1-4-1 Koishikawa, Bunkyo-ku, Tokyo 112-0002, Japan
| | - N Suzuki
- 2 R&D Department, Orthomedico Inc., 2F Sumitomo Fudosan Korakuen Bldg., 1-4-1 Koishikawa, Bunkyo-ku, Tokyo 112-0002, Japan
| | - S Iio
- 2 R&D Department, Orthomedico Inc., 2F Sumitomo Fudosan Korakuen Bldg., 1-4-1 Koishikawa, Bunkyo-ku, Tokyo 112-0002, Japan
| | - T Takara
- 3 Medical Corporation Seishinkai, Takara Clinic, 9F Tasei Building, 2-3-2 Higashi-gotanda, Shinagawa-ku, Tokyo 141-0022, Japan
| | - H Morita
- 1 Department of Microbiological Flora Techinology, Core Technology Laboratories, Asahi group holdings Ltd., 5-11-10 Fuchinobe, Chuo-ku, Sagamihara-shi 252-0206, Kanagawa, Japan
| | - T Takimoto
- 1 Department of Microbiological Flora Techinology, Core Technology Laboratories, Asahi group holdings Ltd., 5-11-10 Fuchinobe, Chuo-ku, Sagamihara-shi 252-0206, Kanagawa, Japan
| | - T Nakamura
- 1 Department of Microbiological Flora Techinology, Core Technology Laboratories, Asahi group holdings Ltd., 5-11-10 Fuchinobe, Chuo-ku, Sagamihara-shi 252-0206, Kanagawa, Japan
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10
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Sakai R, Kitano E, Hatanaka M, Lo P, Matsuura R, Deguchi K, Eguchi H, Maeda A, Watanabe M, Matsunari H, Nagashima H, Okuyama H, Miyagawa S. Studies of Pig Complement: Measurement of Pig CH50, ACH50, and Components. Transplant Proc 2017; 48:1282-4. [PMID: 27320604 DOI: 10.1016/j.transproceed.2015.10.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/03/2015] [Indexed: 11/25/2022]
Abstract
BACKGROUND On the basis of a comparison of the hemolytic complement titer in pigs with that in humans, the complement system of pigs was investigated. The response of innate immunity, such as the natural antibodies, against humans was also examined. METHODS Hemolytic complement activity of pig serum was measured with the use of a microtitration technique. CH50 was determined according to the method of Mayer. ACH50 was assayed according to the methods of Platts-Milles and Ishizaka. Hemolytic activities of C1, C4, C2, C3, C5, C8, and C9 were estimated through the use of intermediate cells and reagents, as described previously. In addition, the pig natural anti-human antibody was studied with the use of human peripheral blood mononuclear cells (PBMCs). Human PBMCs were stained with 5% pig serum, followed by staining with fluorescein isothiocyanate-labeled goat anti-pig IgG and IgM. The resulting stained cells were quantified by use of a FACScalibur system. The alternative pathway of pig complement was also measured with the use of human erythrocytes and normal pooled pig serum with or without Mg(++)EGTA. RESULTS Both the CH50 and ACH50 titers were lower than those of humans. Concerning the components, except for C3, each component, that is, C1, C4, C2, C5, C8, and C9, was also lower than that of humans, based on measured values for human complement components. Pig serum clearly contains natural antibodies, IgG and IgM, to human PBMCs. The alternative pathway of pig complement reacted with human erythrocytes. CONCLUSIONS As a whole, pig innate immunity, the complement system and natural antibody, recognizes the surfaces of human cells.
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Affiliation(s)
- R Sakai
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
| | - E Kitano
- Department of Medical Technology Faculty of Health Sciences, Kobe Tokiwa University, Kobe, Japan
| | - M Hatanaka
- Department of Medical Technology Faculty of Health Sciences, Kobe Tokiwa University, Kobe, Japan
| | - P Lo
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - R Matsuura
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - K Deguchi
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - H Eguchi
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - A Maeda
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - M Watanabe
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Japan
| | - H Matsunari
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Japan
| | - H Nagashima
- Laboratory of Developmental Engineering, Department of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Japan
| | - H Okuyama
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - S Miyagawa
- Department of Pediatric Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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11
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Kaimori JY, Isaka Y, Hatanaka M, Yamamoto S, Ichimaru N, Fujikawa A, Shibata H, Fujimori A, Miyoshi S, Yokawa T, Kuroda K, Moriyama T, Rakugi H, Takahara S. Diffusion Tensor Imaging MRI With Spin-Echo Sequence and Long-Duration Measurement for Evaluation of Renal Fibrosis in a Rat Fibrosis Model. Transplant Proc 2017; 49:145-152. [DOI: 10.1016/j.transproceed.2016.10.014] [Citation(s) in RCA: 11] [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: 01/17/2023]
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12
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Hirose T, Ogura H, Jinkoo K, Nakamura Y, Hosotsubo H, Shimazu T, Kitano E, Hatanaka M. Serial change of C1 inhibitor in patients with sepsis: a preliminary report. Crit Care 2015. [PMCID: PMC4473052 DOI: 10.1186/cc14114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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13
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Bush SR, Belton B, Hall D, Vandergeest P, Murray FJ, Ponte S, Oosterveer P, Islam MS, Mol APJ, Hatanaka M, Kruijssen F, Ha TTT, Little DC, Kusumawati R. Global food supply. Certify sustainable aquaculture? Science 2013; 341:1067-8. [PMID: 24009378 DOI: 10.1126/science.1237314] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- S R Bush
- Wageningen University, Wageningen 6708 LX, Netherlands.
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14
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Hatanaka M, Nakamura Y, Maathuis AJH, Venema K, Murota I, Yamamoto N. Influence of Bacillus subtilis C-3102 on microbiota in a dynamic in vitro model of the gastrointestinal tract simulating human conditions. Benef Microbes 2013; 3:229-36. [PMID: 22968412 DOI: 10.3920/bm2012.0016] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Survival and germination rate of Bacillus subtilis C-3102 spores were investigated in a stomach and small intestine model (TIM-1), while the impact of C-3102 cells that had passed through TIM-1 on human colon microbiota was evaluated in a model of the large intestine (TIM-2). The survival of C-3102 spores in TIM-1 was 99%; 8% of the spores had germinated. Effluent of TIM-1 was subsequently introduced into TIM-2 and a micro-array platform was employed to assess changes in the microbiota composition. The effluent, which contained germinated C-3102 cells, increased some Bifidobacterium species and decreased some Clostridium groups. These changes were greater compared to those obtained by adding C-3102 spores directly to TIM-2. The present study suggests that oral doses of B. subtilis C-3102 spores have the potential to modulate the human colon microbiota. This effect may be caused by germination of the spores in the gastrointestinal tract.
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Affiliation(s)
- M Hatanaka
- Microbiology and Fermentation Laboratory, Calpis Co. Ltd, 11-10, 5-Chome, Fuchinobe, Chuo-ku, 252-0206 Sagamiharashi, Kanagawa, Japan.
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15
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Imai E, Horio M, Yasuda Y, Shibata K, Imai J, Kato T, Maruyama S, Matsuo S, Hermida RC, Otero A, Pineiro L, Ayala DE, Moya A, Sineiro E, Fontao MJ, Mojon A, Fernandez JR, Bernheim J, Podjarny E, Chouraqui M, Hekselman I, Goldbourt U, Rayner H, Hollingworth L, Higgins R, Dodds S, Yasuda K, Sasaki K, Hatanaka M, Obi Y, Kimura T, Hayashi T. CKD / Clinical epidemiology. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.8] [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: 11/14/2022] Open
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Kuo KL, Hung SC, Tarng DC, Selim G, Stojceva-Taneva O, Tozija L, Gelev S, Stojcev N, Dzekova P, Trajcevska L, Severova G, Pavleska S, Sikole A, Combe C, Thumma J, Gillespie B, De Sequera P, Yamamoto H, Robinson B, Matsushita Y, Tasaki H, Tohara Y, Yamauchi E, Matsuoka K, Arizono K, Bellasi A, Ferramosca E, Ratti C, Block G, Raggi P, Drozdz M, Krasniak A, Chmiel G, Podolec P, Pasowicz M, Tracz W, Kowalczyk-Michalek M, Sulowicz W, Kalantzi K, Korantzopoulos P, Bechlioulis A, Vlachopanou A, Foulidis V, Pagiati E, Nikolopoulos P, Gouva C, Arroyave I, Rodelo J, Cardona M, Garcia A, Henao J, Mejia G, Rico J, Arbelaez M, Fujimori A, Okada S, Yamamoto K, Okamoto S, Kamiura N, Sakai M, Tanikake M, Kutlay S, Sengul S, Keven K, Nergizoglu G, Erturk S, Ates K, Duman N, Karatan O, Erbay B, Sameiro-Faria M, Costa E, Rocha-Pereira P, Borges A, Nascimento H, Mendonca D, Amado L, Reis F, Miranda V, Quintanilha A, Belo L, Santos-Silva A, Oh JS, Kim SM, Sin YH, Kim JK, Ishihara M, Otsubo S, Kimata N, Akiba T, Nitta K, Kim KM, Baek CH, Kim SB, Testa A, Sanguedolce MC, Spoto B, Mallamaci F, Malatino L, Tripepi G, Zoccali C, Lee JE, Moon SJ, Kim JK, An HR, Ha SK, Pakr HC, Bahlmann FH, Becker E, Sperber V, Triem S, Noll C, Zewinger S, Fliser D, Laufs U, Thijssen S, Usvyat LA, Raimann JG, Balter P, Kotanko P, Levin NW, Hornum M, Bay JT, Clausen P, Melchior Hansen J, Mathiesen ER, Feldt-Rasmussen B, Garred P, Sural S, Panja CS, Bhattacharya SK, Cernaro V, Lacquaniti A, Lorenzano G, Romeo A, Donato V, Buemi M, Raimann JG, Usvyat L, Thijssen S, Rogus J, Lacson E, Kotanko P, Levin NW, Robinson BM, Karaboyas A, Sen A, Hecking M, Mendelssohn D, Jadoul M, Kawanishi H, Saran R, Kolarz M, Undas A, Wyroslak J, Malyszko J, Klejna K, Naumnik B, Koc-Zurawska E, Mysliwiec M, Piecha G, Kuczera P, Adamczak M, Fedorova OV, Bagrov AY, Wiecek A, Gungor O, Kircelli F, Asci G, Carrero JJ, Tatar E, Demirci M, Toz H, Ozkahya M, Ok E, Bansal V, Shareain K, Hoppensteadt D, Litinas E, Fareed J, Kim MJ, Lee SW, Song JH, Kweon J, Kim WH, Sasaki K, Yasuda K, Hatanaka M, Hayashi T, Katsipi I, Tatsiopoulos A, Papanikolaou P, Doulgerakis C, Kollia K, Kardouli E, Asmanis E, Gennadiou M, Kyriazis J, Panizo S, Barrio-Vazquez S, Carrillo-Lopez N, Fernandez-Vazquez A, Braga S, Rodriguez-Rebollar A, Naves-Diaz M, Cannata-Andia JB, Nikodimopoulou M, Liakos S, Kapoulas S. Cardiovascular complications in CKD 5D (1). Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.38] [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: 11/12/2022] Open
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17
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Tsuge I, Kondo Y, Nakajima Y, Nakagawa N, Imai K, Nonoyama S, Oshima K, Ohara O, Hatanaka M, Kitano E, Kitamura H, Urisu A. Hyper IgM syndrome and complement Clq deficiency in an individual with systemic lupus erythematosus-like disease. Clin Exp Rheumatol 2010; 28:558-560. [PMID: 20810037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2010] [Accepted: 06/25/2010] [Indexed: 05/29/2023]
Abstract
Many immunedeficiency syndromes are associated with autoimmune disorders. We here report on a girl with a systemic lupus erythematosus-like disease who suffered from both hyperimmunoglobulin M syndrome (HIGMS) and C1q deficiency. Despite severe central nervous system-lupus like disease, probably due to C1q deficiency, kidney function was relatively spared. IgM autoantibody might play a protective role against lupus-glomerulonephritis.
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Affiliation(s)
- I Tsuge
- Department of Paediatrics, Fujita Health University, Aichi, Japan.
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18
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Hatanaka M. Spin preference of small metal clusters. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.04.031] [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: 10/19/2022]
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Akiyama M, Hatanaka M, Ohta Y, Ueda K, Yanai A, Uehara Y, Tanabe K, Tsuru M, Miyazaki M, Saeki S, Saito T, Shinoda K, Oka Y, Tanizawa Y. Increased insulin demand promotes while pioglitazone prevents pancreatic beta cell apoptosis in Wfs1 knockout mice. Diabetologia 2009; 52:653-63. [PMID: 19190890 DOI: 10.1007/s00125-009-1270-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Accepted: 12/29/2008] [Indexed: 01/09/2023]
Abstract
AIMS/HYPOTHESIS The WFS1 gene encodes an endoplasmic reticulum (ER) membrane-embedded protein called Wolfram syndrome 1 protein, homozygous mutations of which cause selective beta cell loss in humans. The function(s) of this protein and the mechanism by which the mutations of this gene cause beta cell death are still not fully understood. We hypothesised that increased insulin demand as a result of obesity/insulin resistance causes ER stress in pancreatic beta cells, thereby promoting beta cell death. METHODS We studied the effect of breeding Wfs1 ( -/- ) mice on a C57BL/6J background with mild obesity and insulin resistance, by introducing the agouti lethal yellow mutation (A ( y ) /a). We also treated the mice with pioglitazone. RESULTS Wfs1 ( -/- ) mice bred on a C57BL/6J background rarely develop overt diabetes by 24 weeks of age, showing only mild beta cell loss. However, Wfs1 ( -/- ) A ( y ) /a mice developed selective beta cell loss and severe insulin-deficient diabetes as early as 8 weeks. This beta cell loss was due to apoptosis. In Wfs1 ( +/+ ) A ( y ) /a islets, levels of ER chaperone immunoglobulin-binding protein (BiP)/78 kDa glucose-regulated protein (GRP78) and phosphorylation of eukaryotic translation initiation factor 2, subunit alpha (eIF2alpha) apparently increased. Levels of both were further increased in Wfs1 ( -/- ) A ( y ) /a murine islets. Electron micrography revealed markedly dilated ERs in Wfs1 (-/-) A ( y ) /a murine beta cells. Interestingly, pioglitazone treatment protected beta cells from apoptosis and almost completely prevented diabetes development. CONCLUSIONS/INTERPRETATION Wfs1-deficient beta cells are susceptible to ER stress. Increased insulin demand prompts apoptosis in such cells in vivo. Pioglitazone, remarkably, suppresses this process and prevents diabetes. As common WFS1 gene variants have recently been shown to confer a risk of type 2 diabetes, our findings may be relevant to the gradual but progressive loss of beta cells in type 2 diabetes.
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Affiliation(s)
- M Akiyama
- Division of Endocrinology, Metabolism, Hematological Sciences and Therapeutics, Department of Bio-Signal Analysis, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami Kogushi, Ube, Yamaguchi, 755-8505, Japan
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22
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Fukano R, Nagatoshi Y, Shinkoda Y, Saito Y, Takahashi D, Hatanaka M, Nagayama J, Ayukawa H, Okamura J. Unrelated bone marrow transplantation using a reduced-intensity conditioning regimen for the treatment of Kostmann syndrome. Bone Marrow Transplant 2006; 38:635-6. [PMID: 16953204 DOI: 10.1038/sj.bmt.1705492] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Arakawa K, Hatanaka M, Kuramoto E, Ono K, Mori H. Changes in the Burgers vector of perfect dislocation loops without contact with the external dislocations. Phys Rev Lett 2006; 96:125506. [PMID: 16605927 DOI: 10.1103/physrevlett.96.125506] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2005] [Indexed: 05/08/2023]
Abstract
We report the observations of a new type of changing process in the Burgers vector of dislocations by in situ transmission electron microscopy. Small interstitial-type perfect dislocation loops in bcc iron with diameters less than approximately 50 nm are transformed from a 1/2<111> loop to another 1/2<111> one or an energetically unfavorable <100> one; furthermore, a <100> loop is transformed to a 1/2<111> one. These transformations occurred on high-energy electron irradiation or simple heating without contact with external dislocations. The origin of these phenomena is discussed.
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Affiliation(s)
- K Arakawa
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, 7-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
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Abstract
We report here the cDNA cloning and functional analysis of Xenopus DNase gamma (xDNase gamma). Two forms of cDNAs are isolated from adult spleen: one composing a 933 bp open reading frame for the enzymatically active xDNase gamma protein, and the other encoding an inactive short alternative form. Northern blot analysis revealed that the xDNase gamma mRNA is expressed in spleen, liver, testis, and ovary. xDNase gamma expression is scarcely detected in the tail muscle of tadpoles; however, it increases during metamorphosis and reaches a maximum during the late metamorphic climax. The ectopic expression of xDNase gamma results in the appearance of extensive DNA fragmentation in C2C12 myoblasts after the induction of apoptosis. In contrast, Xenopus DNase I fails to induce apoptotic DNA ladder formation under the same conditions. Our results suggest a possible involvement of xDNase gamma in apoptosis during amphibian metamorphosis.
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Affiliation(s)
- D Shiokawa
- Department of Biochemistry, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
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Susanna R, Vessani RM, Sakata L, Zacarias LC, Hatanaka M. The relation between intraocular pressure peak in the water drinking test and visual field progression in glaucoma. Br J Ophthalmol 2005; 89:1298-301. [PMID: 16170120 PMCID: PMC1772886 DOI: 10.1136/bjo.2005.070649] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM To compare the results of the water drinking test between glaucomatous eyes with and without visual field progression. METHODS Retrospective analysis of 76 eyes of 76 open angle glaucoma patients followed for a mean period of 26.0 (SD 13.8) months. Patients were submitted to the water drinking test at the beginning of the follow up period. Reliable achromatic automated perimetry tests performed during the studied period were used to characterise visual field progression. All subjects were under clinical therapy and had an intraocular pressure (IOP) lower than 17 mm Hg monitored by isolated measurements during the follow up period. The results of the water drinking test were compared between glaucomatous eyes with and without visual field progression. RESULTS Twenty eight eyes reached definite visual field progression. There were no significant differences in the mean age, sex, race, basal IOP, number of antiglaucomatous drugs, initial mean deviation (MD), and corrected pattern standard deviation (CPSD) between eyes that showed visual field progression and the ones who did not progress. A significant difference of 1.9 (SD 0.6) mm Hg (p = 0.001, analysis of covariance; 95% CI 0.8 to 3.0) was observed between glaucomatous eyes that showed visual field deterioration and glaucomatous eyes that did not progress. A significant difference of 16.8% (SD 4.6%) in the mean percentage of IOP variation was also observed between the two groups (p<0.001, analysis of covariance; 95% CI 7.7 to 26.0). CONCLUSIONS Mean IOP peak and percentage of IOP variation during water drinking test were significantly higher in patients with visual field progression compared with patients who did not progress.
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Affiliation(s)
- R Susanna
- Glaucoma Service, Ophthalmology Department, University of São Paulo, Brazil
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Malerbi FK, Hatanaka M, Vessani RM, Susanna R. Intraocular pressure variability in patients who reached target intraocular pressure. Br J Ophthalmol 2005; 89:540-2. [PMID: 15834079 PMCID: PMC1772644 DOI: 10.1136/bjo.2004.058230] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [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] [Accepted: 10/23/2004] [Indexed: 11/04/2022]
Abstract
AIM To assess the intraocular pressure (IOP) variability in patients with primary open angle glaucoma (POAG) under clinical treatment who reached an established target pressure based on isolated office readings. METHODS Retrospective analysis of 65 eyes from 65 POAG patients under clinical therapy who submitted to modified diurnal tension curve (mDTC) (measurements at every 3 hours between 8 am and 5 pm) followed by a water drinking test (WDT). All subjects had established target IOP < or =15 mm Hg at 11 am or 2 pm. IOP variability during mDTC or WDT was evaluated. RESULTS mDTC revealed IOP measurements > or =17 mm Hg in 16 of 65 eyes (24.6%). Nine eyes (13.8%) presented values > or =18 mm Hg. The highest IOP detected by mDTC was 20 mm Hg in one patient (1.5%). WDT demonstrated IOP values > or =17 mm Hg in 32 of 65 eyes (49.2%). 22 eyes (33.8%) presented values > or =18 mm Hg after water ingestion. Moreover, IOP levels > or =20 mm Hg were observed in 14 eyes (21.5%). CONCLUSION A great percentage of POAG patients undergoing clinical treatment and with IOP control based on single office measurement present significantly higher IOP measurements when performing mDTC and, especially, the WDT.
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Affiliation(s)
- F K Malerbi
- Glaucoma Department, University of Sao Paulo School of Medicine, Rua Capote Valente 171 Ap 122, São Paulo, SP 05409-000, Brazil.
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Takahashi I, Nishiuchi K, Miyamoto R, Hatanaka M, Uchida H, Isa K, Sakushima A, Hosoi S. Reaction Systems Peripheral to the 1:2 Mannich Condensation Reaction between o-Phthalaldehyde and Primary Amine. LETT ORG CHEM 2005. [DOI: 10.2174/1570178053400216] [Citation(s) in RCA: 22] [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: 11/22/2022]
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Nakamura H, Hatanaka M, Ochi K, Nagao M, Ogasawara J, Hase A, Kitase T, Haruki K, Nishikawa Y. Listeria monocytogenes isolated from cold-smoked fish products in Osaka City, Japan. Int J Food Microbiol 2004; 94:323-8. [PMID: 15246243 DOI: 10.1016/j.ijfoodmicro.2004.02.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2003] [Revised: 11/25/2003] [Accepted: 02/04/2004] [Indexed: 11/30/2022]
Abstract
Listeria monocytogenes contamination of ready-to-eat seafood products commercially available in Osaka was examined between 1999 and 2000. L. monocytogenes was isolated from 12 (13%) of the 95 products tested. All positive samples were from cold-smoked fish with 9 being obtained during the summer. Thirteen isolates of L. monocytogenes were typed by pulsed-field gel electrophoresis (PFGE) and polymerase chain reaction (PCR)-based typing methods. Isolates of the same serotype originating from the same manufacturer gave similar DNA profiles, irrespective of the type of sample or date of isolation. The finding suggest that persistent strains in each manufacturing facility proliferate during the summer and contaminate products during manufacturing processes.
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Affiliation(s)
- H Nakamura
- Department of Food and Human Health Sciences, Graduate School of Human Life Science, Osaka City University, 3-3-138, Osaka 558-8585, Japan.
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Hatanaka M. [Provirus and diseases]. Nihon Naika Gakkai Zasshi 2001; 90:2398-404. [PMID: 11917863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Abstract
Human immunodeficiency virus type 1 (HIV-1) Tat repressed the p53-dependent gene expression through its C-terminal domain of Tat (amino acid residues 73-86) independent of the involvement of NF-kappaB and coactivator CBP/p300. Although Tat did not directly bind to p53, this repression required the N-terminal domain of p53. In contrast, Tat and p53 cooperated in the activation of HIV-1 gene expression. Thus, the cross-talk between Tat and p53 may be linked with cellular transformation by HIV-1 infection or activation of HIV-1 replication.
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Affiliation(s)
- Y Ariumi
- Institute for Virus Research, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
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Nishio S, Hatanaka M, Takeda H, Aoki K, Iseda T, Iwata H, Yokoyama M. Calcium phosphate crystal-associated proteins: alpha-2-HS-glycoprotein, prothrombin fragment 1 and osteopontin. Int J Urol 2001; 8:S58-62. [PMID: 11555022 DOI: 10.1046/j.1442-2042.2001.00336.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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]
Abstract
To study the inhibitory effects of calcium phosphate-associated proteins on calcium oxalate crystallization and urinary concentrations of proteins in people who form stones and healthy controls. From 60 L of urine from healthy men, calcium phosphate-associated proteins (alpha-2-HS-glycoprotein, prothrombin fragment 1 and osteopontin) were obtained. The effects of the proteins on calcium oxalate (CaOx) crystallization were studied with a mixed suspension mixed product removal system. To examine urinary concentrations of the proteins, urine samples were collected from 17 healthy subjects and 15 stone formers and analyzed using anion-exchange chromatography and an enzyme immunoassay. Prothrombin fragment 1 (PTF1) and osteopontin (OPN) had strong inhibitory effects on CaOx crystallization, while alpha-2-HS-glycoprotein had a mild inhibitory effect. Urinary concentrations of PTF1 and OPN were lower in stone formers than in healthy controls. Low urinary concentrations of PTF1 and OPN might be one of the reasons for stone formation.
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Affiliation(s)
- S Nishio
- Department of Urology, Ehime University, School of Medicine, Ehime, Japan.
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Ishibashi T, Kimura S, Furukawa T, Hatanaka M, Hashimoto J, Sakaguchi K. Two types of replication protein A 70 kDa subunit in rice, Oryza sativa: molecular cloning, characterization, and cellular & tissue distribution. Gene 2001; 272:335-43. [PMID: 11470540 DOI: 10.1016/s0378-1119(01)00555-8] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.9] [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: 11/26/2022]
Abstract
Replication protein A (RPA), which is comprised of three subunits, is an important factor involved in DNA replication, repair, and transcription. We isolated and characterized 70 and 32 kDa subunits of RPA from rice (Oryza sativa cv. Nipponbare) termed OsRPA70a and OsRPA32. OsRPA70a shows a low level of homology with OsRPA1 which was isolated from deepwater rice (Oryza sativa cv. Pin Gaew 56), previously. We also succeeded to isolate OsRPA70b which is homologue to OsRPA1 from Oryza sativa cv. Nipponbare. OsRPA70a shows only 33.8% sequence identity with OsRPA70b, indicating that two different types of 70 kDa RPA subunits are present in Oryza sativa cv. Nipponbare. These subunits showed differences in their expression patterns among tissues. The transcripts of OsRPA70a and OsRPA32 were expressed strongly in proliferating tissues such as root tips and young leaves that contain root apical meristem and marginal meristem, respectively, and weakly in the mature leaves which have no proliferating tissues. On the other hand, OsRPA70b was expressed mostly in the proliferating tissues. The roles of these molecules in plant DNA replication and DNA repair are discussed.
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MESH Headings
- Amino Acid Sequence
- Blotting, Northern
- Cloning, Molecular
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- DNA-Binding Proteins/chemistry
- DNA-Binding Proteins/genetics
- Gene Expression
- Gene Expression Regulation, Plant/drug effects
- Molecular Sequence Data
- Molecular Weight
- Oryza/cytology
- Oryza/drug effects
- Oryza/genetics
- Phylogeny
- Protein Isoforms/chemistry
- Protein Isoforms/genetics
- Protein Subunits
- RNA, Plant/drug effects
- RNA, Plant/genetics
- RNA, Plant/metabolism
- Replication Protein A
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Sucrose/pharmacology
- Tissue Distribution
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Affiliation(s)
- T Ishibashi
- Department of Applied Biological Science, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda-shi, Chiba-ken 278-8510, Japan
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Hatanaka M, Seya T. [CD46 deficiency]. Ryoikibetsu Shokogun Shirizu 2001:239-42. [PMID: 11212706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Baddini-Caramelli C, Hatanaka M, Polati M, Umino AT, Susanna R. Thickness of the retinal nerve fiber layer in amblyopic and normal eyes: a scanning laser polarimetry study. J AAPOS 2001; 5:82-4. [PMID: 11304814 DOI: 10.1067/mpa.2001.112678] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
PURPOSE To compare scanning laser polarimeter (GDx, Laser Diagnostic Technologies, San Diego, Calif) measurements of the peripapillar retinal nerve fiber layer in amblyopic and normal eyes. METHODS Scanning laser polarimetry was performed on 21 patients with unilateral strabismic amblyopia who had an absence of neurologic diseases or glaucoma and a minimum age of 7 years. A mean retardation map was calculated from separate scans or was considered to be the best scan obtained for each eye. Polarimetric indices were analyzed comparing amblyopic and contralateral normal eyes. RESULTS The mean age was 15 +/- 9 years (7-35 years) and the male:female ratio was 13:8. There were 6 right and 15 left amblyopic eyes, with the amblyopic group having a mean visual acuity of 0.3 +/- 0.1. The mean (+/- SD) indices did not differ significantly between normal and amblyopic eyes, except the number that summates information from the individual parameters, which was higher in normal (20.71 +/- 11.98) than in amblyopic (15.14 +/- 6.81) eyes, P =.02. CONCLUSION There was no statistical difference in thickness of the nerve fiber layer between amblyopic and normal eyes. A previous study found similar results in adults with strabismic amblyopia.
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Affiliation(s)
- C Baddini-Caramelli
- Glaucoma and Strabismus Services, Department of Ophthalmology, University of São Paulo School of Medicine, São Paulo, Brazil.
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Abstract
Spore germination, a transition from the quiescent G0 phase to the proliferation cycle, is triggered by glucose in Schizosaccharomyces pombe. The role of cAMP/protein kinase A (PKA) signalling in germination is investigated. Gene disruption of cyr1+, pka1+ and gpa2+ encoding adenylate cyclase, PKA and the alpha-subunit of a trimeric GTP-binding protein, respectively, reduced the colony-forming efficiency of spores in minimal medium. Isolated spores of these null mutants did not germinate in minimal medium for up to 12 h, at which time wild-type spores had completed germination and formed germ projections. In wild-type spores, cortical actin patches randomly distributed in the early stage of outgrowth and then localized to one side of spores before the formation of projections. In contrast, the mutant spores exhibited no actin patches, but the cell surface was predominantly stained, like ungerminated spores of wild-type. Flow fluorocytometric analysis of propidium iodide-stained spores revealed a distinct 1C DNA peak after germination was completed. The fluorescent profile of the mutant spores, however, did not change during 12 h incubation in the minimal medium. These observations indicate that spores harbouring either cyr1Delta, pka1Delta or gpa2Delta are hardly triggered to germination. When wild-type spores were exposed to glucose, the intracellular cAMP level transiently increased in a few minutes, but gpa2Delta spores did not respond to glucose. We conclude that S. pombe spores initiate germination in response to glucose through the cyclic AMP-PKA pathway.
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Affiliation(s)
- M Hatanaka
- Department of Biology, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
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Kimura S, Ishibashi T, Hatanaka M, Sakakibara Y, Hashimoto J, Sakaguchi K. Molecular cloning and characterization of a plant homologue of the origin recognition complex 1 (ORC1). Plant Sci 2000; 158:33-39. [PMID: 10996242 DOI: 10.1016/s0168-9452(00)00297-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
By using the rice EST database, we have isolated a 2.8 kb cDNA, termed Oryza sativa ORC1 (OsORC1), from rice (O. sativa) encoding a protein that shows homology with the eukaryotic ORC1 proteins. Alignment of the OsORC1 protein sequence with the sequence of ORC1 from human and yeasts S. cerevisiae and S. pombe showed a high degree of sequence homology (38.7, 32.9 and 35.0% identity, respectively), particularly around the C-terminal region containing the CDC-NTP domain. Interestingly, the OsORC1 protein had an A+T hook-like motif, which was not present in the human or yeast genes. Genomic analysis indicated that OsORC1 existed as a single copy per genome. OsORC1 transcripts were expressed strongly in root tips and weakly in young leaves containing root apical meristem and marginal meristem, respectively. No expression was detected in the mature leaves. The level of OsORC1 expression was significantly reduced when cell proliferation was temporarily halted by the removal of sucrose from the growth medium. When the growth-halted cells began to re-grow following addition of sucrose to the medium, OsORC1 was again expressed at high levels. These results suggested that OsORC1 is required for cell proliferation. The role of OsORC1 in plant DNA replication will be discussed.
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Affiliation(s)
- S Kimura
- Department of Applied Biological Science, Faculty of Science and Technology, Science University of Tokyo, 2641 Yamazaki, Noda-shi, 278-8510, Chiba-ken, Japan
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37
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Ikemoto T, Nakagawa T, Hatanaka M, Hasegawa M, Kageyama T, Hirano M, Shimizu A. My4+/LeuM3- molecule and CD19 antigen are down-modulate by low affinity Fc gamma receptor II (CD32) stimulation on CD56-positive B-lymphoma cells. Leuk Lymphoma 2000; 39:157-64. [PMID: 10975395 DOI: 10.3109/10428190009053550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
My4+/LeuM3- molecule is recognized by My4, but not by LeuM3, both well known mAbs to CD14. In a previous study we showed that the My4+/LeuM3- molecule on a human monoblastic cell line, U937, is not CD14, but another cell surface antigen. The roles and functions of the My4+/LeuM3- molecule remained unknown. We now report that specific stimulation of Fc gammaR with aggregated IgG or anti-Fc gammaRII antibody down-modulated the My4+/LeuM3- molecules, as well as CD19, in a case of CD56-positive B cell lymphoma. Stimulation of Fc gammaR with anti-mu antibody, which induced concomitant stimulation of sIg, did not induce down-modulation of either molecule. Stimulation of CR2 (CD21), a protein which is functionally or physically associated with CD19, with anti-CR2 (CD21) mAbs also had no effect. The modulation occurred specifically on CD56-positive B-lymphoma cells, since My4+/LeuM3(-)-positive, CD56-negative B-lymphoma cells did not respond to the stimulation. These results suggest that CD19 and My4+/LeuM3- molecules are functionally or physically associated with Fc gammaR II on CD56 positive B-lymphoma cells defined as being at a terminal B cell differentiation stage.
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MESH Headings
- Antibodies, Monoclonal/immunology
- Antigens, CD19/drug effects
- Antigens, CD19/physiology
- Antigens, Neoplasm/drug effects
- Antigens, Neoplasm/physiology
- Antigens, Surface/drug effects
- Antigens, Surface/physiology
- CD56 Antigen/metabolism
- Down-Regulation
- Flow Cytometry
- Humans
- Immunoglobulin G/metabolism
- Immunoglobulin G/pharmacology
- Immunophenotyping
- Lipopolysaccharide Receptors/physiology
- Lymphoma, B-Cell/immunology
- Lymphoma, B-Cell/pathology
- Lymphoma, B-Cell/physiopathology
- Receptors, IgG/immunology
- Receptors, IgG/physiology
- Signal Transduction/drug effects
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Affiliation(s)
- T Ikemoto
- Central Clinical Laboratory, Osaka Medical College, Takatsuki, Japan
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38
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Shoji T, Nakanishi I, Kunitou K, Tsubakihara Y, Hirooka Y, Kishi Y, Hatanaka M, Matsumoto M, Toyoshima K, Seya T. Urine levels of CD46 (membrane cofactor protein) are increased in patients with glomerular diseases. Clin Immunol 2000; 95:163-9. [PMID: 10779410 DOI: 10.1006/clim.2000.4847] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Soluble membrane cofactor protein (MCP, CD46) has not been detected by conventional ELISA in human urine. Here, we established a highly sensitive assay method for determination of urinary MCP (uMCP) using monoclonal antibody-coated paramagnetic beads. This method enabled us to detect less than 0.05 ng/ml of purified membrane and recombinant soluble MCP, a sensitivity 10-fold higher than that of conventional ELISA. In normal subjects, the levels of uMCP were <0. 05 ng/ml. The levels of uMCP were elevated in patients with IgA nephropathy and more prominently in patients with rapidly progressive glomerulonephritis. The levels of uMCP were correlated significantly with those of serum MCP (sMCP) and N-acetyl-beta-glucosaminidase and nonsignificantly with those of beta(2)-microglobulin, total urine protein, or serum creatinine. The properties of uMCP were inconsistent with those of the reported sMCP, since uMCP showed three bands on SDS-PAGE/immunoblotting with molecular mass profiles different from those of sMCP. uMCP exhibited factor I cofactor activity for cleavage of C3b comparable to that of sMCP. The origin of uMCP, however, remains to be determined. These results, taken together with the parameter correlation profiles, suggested that uMCP is secreted or produced secondary to tubular or glomerular damage. The physiological role and clinical significance of uMCP are now within the scope of our investigation by establishment of this assay.
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Affiliation(s)
- T Shoji
- Department of Nephrology, Osaka Prefectural Hospital, Sumiyoshi-ku, Osaka, Japan
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39
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Begum NA, Murakami Y, Mikata S, Matsumoto M, Hatanaka M, Nagasawa S, Kinoshita T, Seya T. Molecular remodelling of human CD46 for xenotransplantation: designing a potent complement regulator without measles virus receptor activity. Immunology 2000; 100:131-9. [PMID: 10809968 PMCID: PMC2326985 DOI: 10.1046/j.1365-2567.2000.00999.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In pig-to-human discordant xenotransplantation, human complement (C) is a major barrier to long survival of xenografts. The current idea on how to cope with this barrier is that human complement regulatory proteins are forcibly expressed on xenografts to serve as safeguards against host C-induced hyperacute rejection of xenografts. Co-expression of decay-accelerating factor (DAF) (CD55) and membrane cofactor protein (MCP) (CD46) would be the first choice for this trial, because most of the human cells are protected from C-mediated damage by two different modes with these two kinds of C-regulators. Many problems have arisen, however, for MCP expression on grafts. (i) MCP acts as a measles virus receptor, which may function to render donor pigs measles virus (MV) sensitive. (ii) MCP signals immune suppression which causes devastation of the recipient's immune responses. (iii) MCP exerts relatively low self-protective activity against C compared with other cofactors; development of more efficient forms is desirable. (iv) Grafts with a high expression level of MCP are difficult to produce. In this study, we made a number of cDNA constructs of MCP, expressed them on swine endothelial cell lines, and tested cell-protective potency and MV susceptibility. The short consensus repeat 1 (SCR1)-deleted MCP with glycosyl phosphatidylinositol (GPI)-anchored form (Delta1MCP-PI) of MCP was found to be most suitable for the purpose of overcoming these problems. However, it was also found that MV induces two modes of cytopathic effect (CPE) on swine endothelial cells, either MCP-dependent or -independent. Here, we discuss these two points which will be raised through study of MCP-transgenic animals.
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Affiliation(s)
- N A Begum
- Department of Immunology, Osaka Medical Centre for Cancer and Cardiovascular Diseases, Osaka, Japan
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40
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Koh M, Iwanaga T, Hatanaka M, Nakano A, Morihara K, Takemura K. Distribution of sarcophytol A in soft coral of the Sarcophyton genus. Biosci Biotechnol Biochem 2000; 64:858-61. [PMID: 10830506 DOI: 10.1271/bbb.64.858] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 11/08/2022]
Abstract
The distribution of sarcophytol-A in the Sarcophyton genus was investigated in seven samples belonging to S. glaucum (3 samples), S. infundibulifurme (2 samples), S. crassocaule (1 sample) and S. trocheliophorum (1 sample) that were collected on Ishigaki Island in Okinawa Prefecture. Sarcophytol-A was present in one sample each of S. glaucum and S. infundibulifurme. This study indicates that the composition of cembranoids in the Sarcophyton genus is not related with the respective species, but with the individual samples collected.
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Affiliation(s)
- M Koh
- Institute for Applied Life Science, University of East Asia, Graduate School, Yamaguchi, Japan
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41
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Kishikawa M, Nakanishi T, Miyazaki A, Hatanaka M, Shimizu A, Tamoto S, Ohsawa N, Hayashi H, Kanai M. A new nonamyloid transthyretin variant, G101S, detected by electrospray ionization/mass spectrometry. Mutations in brief no. 201. Online. Hum Mutat 2000; 12:363. [PMID: 10671063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Familial amyloidotic polyneuropathy is caused by transthyretin (TTR) variants. The identification of new variants with and without amyloidosis may help to clarify the mechanism of amyloid fibril formation. We detected several variant TTRs from patients with and without symptoms of amyloidosis using mass spectrometry (MS). TTR was isolated by mixing test serum with anti-transthyretin antiserum, and the generated immunoprecipitate was analyzed by high performanced liquid chromatography/electrospray ionization (HPLC/ESI) MS. Variant TTRs showed extra peaks in addition to normal TTR peaks. A variant found in nonamyloid group was sequenced by HPLC/ESI tandem MS using peptides obtained by protelytic digestion of TTR and by DNA analysis. The structure was new, [G101S], and was found in a 74 years old Japanese male. This mutation results from substitution in a CpG hot spot. The substitution in the surface loop, 98-102, between F and G b-strands may not cause amyloid formation.
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Affiliation(s)
- M Kishikawa
- Department of Clinical Pathology, Osaka Medical College, Japan
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42
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Kimura S, Ueda T, Hatanaka M, Takenouchi M, Hashimoto J, Sakaguchi K. Plant homologue of flap endonuclease-1: molecular cloning, characterization, and evidence of expression in meristematic tissues. Plant Mol Biol 2000; 42:415-27. [PMID: 10798612 DOI: 10.1023/a:1006349511964] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Flap endonuclease-1 (FEN-1) is an important enzyme involved in DNA replication and repair. We isolated a 1.4 kb cDNA from rice (Oryza sativa), termed OsFEN-1, encoding a protein which shows homology with the eukaryotic FEN-1 proteins. OsFEN-1 protein was overexpressed in Escherichia coli and purified to near homogeneity. DNA cleavage analysis using different branched DNA structures indicated that OsFEN-1 protein possesses both 5'-flap endonuclease and 5' to 3' double-stranded DNA exonuclease activities. OsFEN-1 protein incises a 5'-flap and 5'-pseudo Y structure one base 3' of the branched point in the duplex region. The enzymatic properties indicated that we succeeded in obtaining the gene and the protein of a plant counterpart of FEN-1. OsFEN-1 transcripts were expressed strongly in proliferating tissues such as root tips and young leaves that contain root apical meristem and marginal meristem, respectively. No expression was detected in mature leaves although the leaves were exposed to UV. We analyzed the spatial distribution pattern of OsFEN-1 transcripts by in situ hybridization. In the shoot apex, OsFEN-1 mRNA was abundant in the shoot apical meristem, tiller bud, leaf primordia, ligule primordia and marginal meristem of young leaves. In the roots, the transcript accumulated to high levels in the root apical meristem. Our results indicate that OsFEN-1 is expressed in tissues rich in proliferating cells, and its expression may be required for cell growth and organ formation.
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MESH Headings
- Amino Acid Sequence
- Blotting, Northern
- Blotting, Southern
- Cloning, Molecular
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- DNA, Plant/genetics
- Endodeoxyribonucleases/genetics
- Escherichia coli/genetics
- Flap Endonucleases
- Gene Expression Regulation, Enzymologic
- Gene Expression Regulation, Plant
- In Situ Hybridization
- Meristem/enzymology
- Meristem/genetics
- Molecular Sequence Data
- Oryza/enzymology
- Oryza/genetics
- Plant Roots/enzymology
- Plant Roots/genetics
- Plant Shoots/enzymology
- Plant Shoots/genetics
- RNA, Plant/genetics
- RNA, Plant/metabolism
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
- Tissue Distribution
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Affiliation(s)
- S Kimura
- Department of Applied Biological Science, Faculty of Science and Technology, Science University of Tokyo, Chiba-ken, Japan
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43
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Nishio S, Hatanaka M, Takeda H, Aoki K, Iseda T, Iwata H, Yokoyama M. Calcium phosphate crystal-associated proteins: alpha2-HS-glycoprotein, prothrombin F1, and osteopontin. Mol Urol 2000; 4:383-90. [PMID: 11156706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
PURPOSE To elucidate the process of urinary stone formation, many urinary constituents have been examined as inhibitors or promoters. MATERIALS AND METHODS We analyzed specific binding proteins of calcium phosphate (CaP) crystals generated in human urine and found that the separated proteins were alpha2-HS-glycoprotein, prothrombin fragment 1 (PTF1), and osteopontin (OPN). We also studied their inhibitory effects on calcium oxalate crystallization and the quantitative differences in urinary excretion of the proteins in healthy individuals and stone formers. RESULTS Both PTF1 and OPN had strong inhibitory effects on growth of calcium oxalate crystals. No differences in alpha2-HS-glycoprotein were found between healthy subjects and stone formers. Urinary concentrations of PTF1 and OPN were lower in stone formers than in healthy controls. No differences in these proteins were seen between single and recurrent stone formers. CONCLUSION Low urinary concentrations of PTF1 and OPN might be one reason for stone formation.
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Affiliation(s)
- S Nishio
- Department of Urology, Ehime University School of Medicine, Ehime, Japan.
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44
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Hatanaka M, Shimizu A. [C6, C7, C8 and C9]. Nihon Rinsho 1999; 57 Suppl:71-4. [PMID: 10635778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- M Hatanaka
- Department of Clinical Pathology, Osaka Medical College
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45
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Nishio S, Hatanaka M, Takeda H, Iseda T, Iwata H, Yokoyama M. Analysis of urinary concentrations of calcium phosphate crystal-associated proteins: alpha2-HS-glycoprotein, prothrombin F1, and osteopontin. J Am Soc Nephrol 1999; 10 Suppl 14:S394-6. [PMID: 10541271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
It has been reported that prothrombin F1 and osteopontin (OPN) have strong inhibitory effects on calcium oxalate crystallization and are produced in stone-forming kidneys in animal models. It is important to evaluate urinary concentrations of these proteins for patients with renal stones and healthy control subjects. Urinary macromolecules were collected from nine healthy individuals, nine stone-formers, and five patients with primary hyperparathyroidism (HPT). Each 50-mg aliquot of urinary macromolecules was mixed with calcium phosphate solution, and calcium phosphate crystal-precipitated proteins (alpha2-HS-glycoprotein, prothrombin F1, and OPN) were obtained. The proteins were analyzed by anion-exchange chromatography. Furthermore, OPN levels in whole urine from 18 healthy individuals, 31 stone-formers, and two patients with HPT were measured using a new enzyme immunoassay system. The elution peaks for prothrombin and OPN were significantly smaller for the stone-formers and patients with HPT, compared with the healthy control subjects. Urinary concentrations of OPN assessed using the enzyme-linked immunosorbant assay were significantly lower for stone-formers. Lower urinary excretion of prothrombin F1 and OPN by stone-formers might be one of the reasons for stone formation.
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Affiliation(s)
- S Nishio
- Department of Urology, Ehime University, School of Medicine, Japan.
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46
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Hatanaka M, Shimizu A. [Factor B (C3 proactivator), factor H, factor I]. Nihon Rinsho 1999; 57 Suppl:55-8. [PMID: 10635773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Affiliation(s)
- M Hatanaka
- Department of Clinical Pathology, Osaka Medical College
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47
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Lin CA, Martins MA, Farhat SC, Pope CA, Conceição GM, Anastácio VM, Hatanaka M, Andrade WC, Hamaue WR, Böhm GM, Saldiva PH. Air pollution and respiratory illness of children in São Paulo, Brazil. Paediatr Perinat Epidemiol 1999; 13:475-88. [PMID: 10563367 DOI: 10.1046/j.1365-3016.1999.00210.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
This investigation reports the association between air pollution and paediatric respiratory emergency visits in São Paulo, Brazil, the largest city in South America. Daily records of emergency visits were obtained from the Children's Institute of the University of São Paulo for the period from May 1991 to April 1993. Visits were classified as respiratory and non-respiratory causes. Respiratory visits were further divided into three categories: upper respiratory illness, lower respiratory illness and wheezing. Daily records of SO2, CO, particulate matter (PM10), O3 and NO2 concentrations were obtained from the State Air Pollution Controlling Agency of São Paulo. Associations between respiratory emergency visits and air pollution were assessed by simple comparative statistics, simple correlation analysis and by estimating a variety of regression models. Significant associations between the increase of respiratory emergency visits and air pollution were observed. The most robust associations were observed with PM10, and to a lesser extent with O3. These associations were stable across different model specifications and several controlling variables. A significant increase in the counts of respiratory emergency visits--more than 20%--was observed on the most polluted days, indicating that air pollution is a substantial paediatric health concern in São Paulo.
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Affiliation(s)
- C A Lin
- Laboratory of Experimental Air Pollution, School of Medicine, University of São Paulo, Brazil
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48
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Lin CA, Martins MA, Farhat SC, Pope CA, Conceição GM, Anastácio VM, Hatanaka M, Andrade WC, Hamaue WR, Böhm GM, Saldiva PH. Air pollution and respiratory illness of children in São Paulo, Brazil. Paediatr Perinat Epidemiol 1999; 13:475-488. [PMID: 10563367 DOI: 10.1046/j.1365-3016.1999] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
This investigation reports the association between air pollution and paediatric respiratory emergency visits in São Paulo, Brazil, the largest city in South America. Daily records of emergency visits were obtained from the Children's Institute of the University of São Paulo for the period from May 1991 to April 1993. Visits were classified as respiratory and non-respiratory causes. Respiratory visits were further divided into three categories: upper respiratory illness, lower respiratory illness and wheezing. Daily records of SO2, CO, particulate matter (PM10), O3 and NO2 concentrations were obtained from the State Air Pollution Controlling Agency of São Paulo. Associations between respiratory emergency visits and air pollution were assessed by simple comparative statistics, simple correlation analysis and by estimating a variety of regression models. Significant associations between the increase of respiratory emergency visits and air pollution were observed. The most robust associations were observed with PM10, and to a lesser extent with O3. These associations were stable across different model specifications and several controlling variables. A significant increase in the counts of respiratory emergency visits--more than 20%--was observed on the most polluted days, indicating that air pollution is a substantial paediatric health concern in São Paulo.
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Affiliation(s)
- C A Lin
- Laboratory of Experimental Air Pollution, School of Medicine, University of São Paulo, Brazil
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49
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Ariumi Y, Masutani M, Copeland TD, Mimori T, Sugimura T, Shimotohno K, Ueda K, Hatanaka M, Noda M. Suppression of the poly(ADP-ribose) polymerase activity by DNA-dependent protein kinase in vitro. Oncogene 1999; 18:4616-25. [PMID: 10467406 DOI: 10.1038/sj.onc.1202823] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.9] [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: 11/09/2022]
Abstract
It has been suggested that DNA-dependent protein kinase (DNA-PK) is a central component of DNA double-strand-break repair. The mechanism of DNA-PK action, however, has not been fully understood. Poly(ADP-ribose) polymerase (PARP) is another nuclear enzyme which has high affinity to DNA ends. In this study, we analysed the interaction between these two enzymes. First, DNA-PK was found to suppress the PARP activity and alters the pattern of poly(ADP-ribosyl)ation. Although DNA-PK phosphorylates PARP in a DNA-dependent manner, this modification is unlikely to be responsible for the suppression of PARP activity, since this suppression occurs even in the absence of ATP. Conversely, PARP was found to ADP-ribosylate DNA-PK in vitro. However, the auto-phosphorylation activity of DNA-PK was not influenced by this modification. In a competitive electrophoretic mobility shift assay, Ku 70/80 complex, the DNA binding component of DNA-PK, was found to have higher affinity to a short fragment of DNA than does PARP. Furthermore, co-immunoprecipitation analysis suggested direct or close association between Ku and PARP. Thus, DNA-PK suppresses PARP activity, probably through direct binding and/or sequestration of DNA-ends which serve as an important stimulator for both enzymes.
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Affiliation(s)
- Y Ariumi
- Institute for Virus Research, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
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50
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Habu K, Nakayama-Yamada J, Asano M, Saijo S, Itagaki K, Horai R, Yamamoto H, Sekiguchi T, Nosaka T, Hatanaka M, Iwakura Y. The human T cell leukemia virus type I-tax gene is responsible for the development of both inflammatory polyarthropathy resembling rheumatoid arthritis and noninflammatory ankylotic arthropathy in transgenic mice. J Immunol 1999; 162:2956-63. [PMID: 10072546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
We previously reported that inflammatory arthropathy resembling rheumatoid arthritis (RA) develops among transgenic mice carrying the long terminal repeat (LTR)-env-pX-LTR region of human T cell leukemia virus type I (LTR-pX-Tg mice). Because four genes are encoded in this region, we produced transgenic mice that only express the tax gene to examine its role in the development of arthritis. Transgenic mice were produced by constructing DNAs that express the tax gene alone under the control of either its own LTR or CD4 enhancer/promoter and by microinjecting them into C3H/HeN-fertilized ova. We produced seven transgenic mice carrying the LTR-tax gene and nine mice carrying the CD4-tax and found that one of the LTR-tax-Tg mice and five of CD4-tax-Tg mice developed RA-like inflammatory arthropathy similar to LTR-pX-Tg mice, indicating that the tax gene is arthritogenic. On the other hand, the other two LTR-tax-Tg mice had ankylotic changes caused by new bone formation without inflammation. In these ankylotic mice, tax mRNA, inflammatory cytokine mRNA, and autoantibody levels except for TGF-beta1 level were lower than those in LTR-pX- or CD4-tax-Tg mice. These results show that Tax is responsible for the development of inflammatory arthropathy resembling RA and that this protein also causes ankylotic arthropathy.
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Affiliation(s)
- K Habu
- Center for Experimental Medicine, Institute of Medical Science, University of Tokyo, Minato-ku, Tokyo, Japan
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