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Xiao FH, Yu Q, Deng ZL, Yang K, Ye Y, Ge MX, Yan D, Wang HT, Chen XQ, Yang LQ, Yang BY, Lin R, Zhang W, Yang XL, Dong L, He Y, Zhou J, Cai WW, Li J, Kong QP. ETS1 acts as a regulator of human healthy aging via decreasing ribosomal activity. Sci Adv 2022; 8:eabf2017. [PMID: 35476452 PMCID: PMC9045719 DOI: 10.1126/sciadv.abf2017] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 02/27/2022] [Indexed: 05/25/2023]
Abstract
Adaptation to reduced energy production during aging is a fundamental issue for maintaining healthspan or prolonging life span. Currently, however, the underlying mechanism in long-lived people remains poorly understood. Here, we analyzed transcriptomes of 185 long-lived individuals (LLIs) and 86 spouses of their children from two independent Chinese longevity cohorts and found that the ribosome pathway was significantly down-regulated in LLIs. We found that the down-regulation is likely controlled by ETS1 (ETS proto-oncogene 1), a transcription factor down-regulated in LLIs and positively coexpressed with most ribosomal protein genes (RPGs). Functional assays showed that ETS1 can bind to RPG promoters, while ETS1 knockdown reduces RPG expression and alleviates cellular senescence in human dermal fibroblast (HDF) and embryonic lung fibroblast (IMR-90) cells. As protein synthesis/turnover in ribosomes is an energy-intensive cellular process, the decline in ribosomal biogenesis governed by ETS1 in certain female LLIs may serve as an alternative mechanism to achieve energy-saving and healthy aging.
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Affiliation(s)
- Fu-Hui Xiao
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
| | - Qin Yu
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
| | - Zhi-Li Deng
- Department of Dermatology/National Clinical Research
Center for Geriatric Disorders, Xiangya Hospital, Central South University,
Changsha 410000, China
- Hunan Key Laboratory of Aging Biology, Xiangya
Hospital, Central South University, Changsha 410000, China
- Department of Dermatology, Second affiliated Hospital
of Xinjiang Medical University, Urumqi 830000, China
| | - Ke Yang
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- Kunming College of Life Science, University of
Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Animal Models and Human Disease
Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology,
Kunming 650223, China
| | - Yunshuang Ye
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- Kunming College of Life Science, University of
Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Animal Models and Human Disease
Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology,
Kunming 650223, China
| | - Ming-Xia Ge
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- Kunming College of Life Science, University of
Chinese Academy of Sciences, Beijing 100049, China
- CAS Center for Excellence in Animal Evolution and
Genetics, Chinese Academy of Sciences, Kunming 650223, China
- KIZ/CUHK Joint Laboratory of Bioresources and
Molecular Research in Common Diseases, Kunming 650223, China
| | - Dongjing Yan
- Department of Biochemistry and Molecular Biology,
Hainan Medical College, Haikou 571199, China
| | - Hao-Tian Wang
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- Kunming College of Life Science, University of
Chinese Academy of Sciences, Beijing 100049, China
- CAS Center for Excellence in Animal Evolution and
Genetics, Chinese Academy of Sciences, Kunming 650223, China
- KIZ/CUHK Joint Laboratory of Bioresources and
Molecular Research in Common Diseases, Kunming 650223, China
| | - Xiao-Qiong Chen
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Li-Qin Yang
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Bin-Yu Yang
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Rong Lin
- Department of Biology, Hainan Medical College,
Haikou 571199, China
| | - Wen Zhang
- Department of Biochemistry and Molecular Biology,
Hainan Medical College, Haikou 571199, China
| | - Xing-Li Yang
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Lei Dong
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Yonghan He
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
| | - Jumin Zhou
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- Key Laboratory of Animal Models and Human Disease
Mechanisms of the Chinese Academy of Sciences, Kunming Institute of Zoology,
Kunming 650223, China
- KIZ/CUHK Joint Laboratory of Bioresources and
Molecular Research in Common Diseases, Kunming 650223, China
| | - Wang-Wei Cai
- Department of Biochemistry and Molecular Biology,
Hainan Medical College, Haikou 571199, China
| | - Ji Li
- Department of Dermatology/National Clinical Research
Center for Geriatric Disorders, Xiangya Hospital, Central South University,
Changsha 410000, China
- Hunan Key Laboratory of Aging Biology, Xiangya
Hospital, Central South University, Changsha 410000, China
- Department of Dermatology, Second affiliated Hospital
of Xinjiang Medical University, Urumqi 830000, China
| | - Qing-Peng Kong
- State Key Laboratory of Genetic Resources and
Evolution/Key Laboratory of Healthy Aging Research of Yunnan Province, Kunming
Institute of Zoology, Chinese Academy of Sciences, Kunming 650201, China
- Kunming Key Laboratory of Healthy Aging Study,
Kunming 650201, China
- CAS Center for Excellence in Animal Evolution and
Genetics, Chinese Academy of Sciences, Kunming 650223, China
- KIZ/CUHK Joint Laboratory of Bioresources and
Molecular Research in Common Diseases, Kunming 650223, China
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Xie HF, Liu YZ, Du R, Wang B, Chen MT, Zhang YY, Deng ZL, Li J. Correction: miR-377 induces senescence in human skin fibroblasts by targeting DNA methyltransferase 1. Cell Death Dis 2019; 10:859. [PMID: 31719519 PMCID: PMC6851144 DOI: 10.1038/s41419-019-2097-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-Fu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ injury, Ageing and Regenerative Medicine of Hunan Province, Changsha, China
| | - Ying-Zi Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Du
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ben Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Meng-Ting Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yi-Ya Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
| | - Zhi-Li Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China. .,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China. .,State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China. .,Key Laboratory of Organ injury, Ageing and Regenerative Medicine of Hunan Province, Changsha, China.
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Yin H, Chen CY, Liu YW, Tan YJ, Deng ZL, Yang F, Huang FY, Wen C, Rao SS, Luo MJ, Hu XK, Liu ZZ, Wang ZX, Cao J, Liu HM, Liu JH, Yue T, Tang SY, Xie H. Synechococcus elongatus PCC7942 secretes extracellular vesicles to accelerate cutaneous wound healing by promoting angiogenesis. Am J Cancer Res 2019; 9:2678-2693. [PMID: 31131061 PMCID: PMC6525994 DOI: 10.7150/thno.31884] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/17/2019] [Indexed: 01/08/2023] Open
Abstract
Poor wound healing affects millions of people worldwide each year and needs better therapeutic strategies. Synechococcus elongatus PCC 7942 is a naturally occurring photoautotrophic cyanobacterium that can be easily obtained and large-scale expanded. Here, we investigated the therapeutic efficacy of this cyanobacterium in a mouse model of acute burn injury and whether the secretion of extracellular vesicles (EVs), important mediators of cell paracrine activity, is a key mechanism of the cyanobacterium-induced regulation of wound healing. Methods: The effects of Synechococcus elongatus PCC 7942 on burn wound healing in mice under light or dark conditions were evaluated by measuring wound closure rates, histological and immunofluorescence analyses. A series of assays in vivo and in vitro were conducted to assess the impact of the cyanobacterium on angiogenesis. GW4869 was used to interfere with the secretion of EVs by the cyanobacterium and the abilities of the GW4869-pretreated and untreated Synechococcus elongatus PCC 7942 to regulate endothelial angiogenesis were compared. The direct effects of the cyanobacterium-derived EVs (S. elongatus-EVs) on angiogenesis, wound healing and expressions of a class of pro-inflammatory factors that have regulatory roles in wound healing were also examined. Results: Synechococcus elongatus PCC 7942 treatment under light and dark conditions both significantly promoted angiogenesis and burn wound repair in mice. In vitro, the cyanobacterium enhanced angiogenic activities of endothelial cells, but the effects were markedly blocked by GW4869 pretreatment. S. elongatus-EVs were capable of augmenting endothelial angiogenesis in vitro, and stimulating new blood vessel formation and burn wound healing in mice. The expression of interleukin 6 (IL-6), which has an essential role in angiogenesis during skin wound repair, was induced in wound tissues and wound healing-related cells by S. elongatus-EVs and Synechococcus elongatus PCC 7942. Conclusion: Synechococcus elongatus PCC 7942 has the potential as a promising strategy for therapeutic angiogenesis and wound healing primarily by the delivery of functional EVs, not by its photosynthetic activity. The promotion of IL-6 expression may be a mechanism of the cyanobacterium and its EVs-induced pro-angiogenic and -wound healing effects.
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4
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Wang B, Du R, Xiao X, Deng ZL, Jian D, Xie HF, Li J. Microrna-217 modulates human skin fibroblast senescence by directly targeting DNA methyltransferase 1. Oncotarget 2018; 8:33475-33486. [PMID: 28380423 PMCID: PMC5464883 DOI: 10.18632/oncotarget.16509] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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: 01/10/2017] [Accepted: 02/28/2017] [Indexed: 12/11/2022] Open
Abstract
DNA methyltransferase 1 (DNMT1) is a major epigenetic regulator associated with many biological processes. However, the roles and mechanisms of DNMT1 in skin aging are incompletely understood. Here we explored the role of DNMT1 in human skin fibroblasts senescence and its related regulatory mechanisms. DNMT1 expression decreased in passage-aged fibroblasts and DNMT1 silencing in young fibroblasts induced the senescence phenotype. MiR-217 is predicted to target DNMT1 mRNA and miR-217 expression increased in passage-aged fibroblasts. MiR-217 directly targeted the 3′-untranslated region (3′-UTR) of DNMT1 in HEK 293T cells and inhibited DNMT1 expression in fibroblasts. MiR-217 overexpression induced a senescence phenotype in young fibroblasts, and miR-217 downregulation in old HSFs partially reversed the senescence phenotype. However, these effects could be significantly rescued by regulating DNMT1 expression in fibroblasts. After regulating miR-217 levels, we analyzed changes in the promoter methylation levels of 24 senescent-associated genes, finding that 6 genes were significantly altered, and verified p16 and phosphorylated retinoblastoma (pRb) protein levels. Finally, an inverse correlation between DNMT1 and miR-217 expression was observed in skin tissues and different-aged fibroblasts. Together, these findings revealed that miR-217 promotes fibroblasts senescence by suppressing DNMT1-mediated methylation of p16 and pRb by targeting the DNMT1 3′-UTR.
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Affiliation(s)
- Ben Wang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Du
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiao Xiao
- Department of Dermatology, Hunan Provincial People's Hospital, Changsha, China
| | - Zhi-Li Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Dan Jian
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Hong-Fu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
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5
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Cao R, Deng ZL, Ma YH, Chen XL. Effect of EVA on thermal stability, flammability, mechanical properties of HDPE/EVA/Mg(OH)2 composites. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/213/1/012002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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6
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Pan J, Yang JF, Deng BP, Zhao XJ, Zhang X, Lin YH, Wu YN, Deng ZL, Zhang YL, Liu SH, Wu T, Lu PH, Lu DP, Chang AH, Tong CR. High efficacy and safety of low-dose CD19-directed CAR-T cell therapy in 51 refractory or relapsed B acute lymphoblastic leukemia patients. Leukemia 2017; 31:2587-2593. [DOI: 10.1038/leu.2017.145] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 04/25/2017] [Accepted: 05/04/2017] [Indexed: 12/18/2022]
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7
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Deng ZL, Liang MN, Li HH, Zhu ZJ. Advances in preparation of modified activated carbon and its applications in the removal of chromium (VI) from aqueous solutions. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1755-1315/39/1/012065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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8
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Xie YY, Deng ZL, Zhang S. [Cimetidine in the treatment of recurrent acute intermittent porphyria: a case report]. Zhonghua Nei Ke Za Zhi 2016; 55:640-642. [PMID: 27480563 DOI: 10.3760/cma.j.issn.0578-1426.2016.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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9
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Nabae T, Takahata S, Konomi H, Deng ZL, Yokohata K, Chijiiwa K, Tanaka M. Effect of prepyloric gastric transection and anastomosis on sphincter of Oddi cyclic motility in conscious dogs. J Gastroenterol 2001; 36:530-7. [PMID: 11519831 DOI: 10.1007/s005350170055] [Citation(s) in RCA: 11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE We previously reported significant changes in sphincter of Oddi cyclic motility after proximal duodenal transection and anastomosis. However, the role of intrinsic myoneural continuity between the antrum and duodenum in this respect is not understood. The aim of this study was to elucidate the effects of prepyloric gastric transection on sphincter of Oddi motility in animals in the conscious state. METHODS Pressures in the bile duct, duodenum, stomach, and sphincter of Oddi and their response to an injection of cholecystokinin-octapeptide were measured in four conscious dogs, with a duodenal cannula, before and after gastric transection and anastomosis 1.5 cm proximal to the pylorus. RESULTS Gastric transection did not affect the initiation and propagation of the gastroduodenal migration motor complex. Biliary pressure (5.7 +/- 0.15 to 5.5 +/- 0.2 mmHg; P = 0.91), sphincter of Oddi basal pressure (10.6 +/- 0.3 to 10.7 +/- 0.2 mmHg; P = 0.97), and amplitude (26.0 +/- 1.2 to 32.9 +/- 1.7 mmHg; P = 0.304) did not change after gastric transection. Biliary pressure decreased from phase II to phase III of the duodenal migrating motor complex. Cholecystokinin-octapeptide inhibited sphincter of Oddi phasic waves before and after gastric transection. CONCLUSIONS Intrinsic myoneural transection at the prepyloric region does not influence sphincter of Oddi cyclic motility. Preservation of pyloroduodenal myoneural continuity in pylorus-preserving gastrectomy would be beneficial to maintain normal sphincter of Oddi motility.
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Affiliation(s)
- T Nabae
- Department of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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10
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Deng ZL, Nabae T, Konomi H, Takahata S, Yokohata K, Ogawa Y, Chijiiwa K, Tanaka M. Effects of proximal duodenal transection and anastomosis on interdigestive sphincter of Oddi cyclic motility in conscious dogs. World J Surg 2000; 24:863-9. [PMID: 10833256 DOI: 10.1007/s002680010138] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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
Gallstones formed after gastrectomy are bilirubinate stones probably associated with biliary stasis and infection. Effects of proximal duodenal transection performed during gastrectomy on interdigestive sphincter of Oddi cyclic motility possibly relevant to this phenomenon were investigated in four conscious dogs. Although the cyclic change in sphincter motility was still in concert with the duodenal migrating motor complex after duodenal transection, the mean period was shortened (p < 0.02), and the frequency (p < 0.005) and amplitude (p < 0.001) of sphincter phasic waves during phase III were decreased. The cyclic variation of basal pressure disappeared, and the mean basal pressure throughout the cycle was significantly reduced (p < 0.003). Transient inhibition of sphincter and duodenal contractions normally seen during phase III disappeared. Duodenal transection reversed the response of the sphincter to cholecystokinin-octapeptide from inhibition to stimulation and from reduction of the basal pressure to elevation. These data suggest that duodenal transection produces significant changes in interdigestive sphincter of Oddi motility, possibly contributing to augmented duodenobiliary reflux and then lithogenesis. Myoneural continuity between the stomach and sphincter of Oddi at the proximal duodenum may play an important role in maintaining normal biliary dynamics.
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Affiliation(s)
- Z L Deng
- Department of Surgery I, Kyushu University Faculty of Medicine, Fukuoka, Japan
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11
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Takeda T, Tohma H, Yoshida J, Naritomi G, Konomi H, Deng ZL, Kinukawa N, Tanaka M. Vector manometric study of the sphincter of Oddi in the dog: functional and morphological correlation. J Gastroenterol 1998; 33:860-3. [PMID: 9853560 DOI: 10.1007/s005350050188] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The relationship between sphincter of Oddi pressure and the morphological structure of the sphincter was studied in eight dogs prepared with a duodenal cannula. Sphincter of Oddi manometry was performed in awake animals in three directions, ventral, left dorsal, and right dorsal, using a catheter with three radial side holes for recording at one level. The pressure in the ventral direction (26.6+/-1.06 mmHg) (mean+/-SEM) was significantly lower than that in the left and right dorsal directions (30.6+/-1.42 and 31.2+/-1.23 mmHg, respectively). This functional manometric difference in the three directions correlated closely with the morphological structure of the sphincter of Oddi; the sum of the thickness of the sphincter of Oddi muscle and duodenal proper muscle was greater on the dorsal than on the ventral side. To our knowledge, this is the first report of axial asymmetry in sphincter of Oddi pressure.
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Affiliation(s)
- T Takeda
- Department of Surgery I, Kyushu University Faculty of Medicine, Fukuoka, Japan
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12
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Ohara K, Nakamura Y, Xie DW, Ishigaki T, Deng ZL, Tani K, Zhang HY, Kondo N, Liu JC, Miyasato K, Ohara K. Polymorphisms of dopamine D2-like (D2, D3, and D4) receptors in schizophrenia. Biol Psychiatry 1996; 40:1209-17. [PMID: 8959285 DOI: 10.1016/0006-3223(95)00673-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [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: 02/03/2023]
Abstract
The result of most association studies and linkage analyses have suggested a negative association between schizophrenia and D2-like (D2, D3, and D4) receptor polymorphisms. Although the polymorphisms of the D2-like receptor in themselves may not account for the etiology of schizophrenia, they can contribute to the severity of the symptoms. Thus, we studied the associations between the polymorphisms and their combinations, and the vulnerability of schizophrenics. Fragments of the D2-like receptor genes were amplified by means of the polymerase chain reaction, and the polymorphisms were identified by the restriction fragment length polymorphism and single-stranded conformation polymorphism methods. There were no statistically significant differences in the polymorphisms and their combinations between schizophrenics and controls. Schizophrenics with D4E1(A1/A2), which contains 2 and 1 tandem repeats of a 12-base-pair sequence in exon 1, had a lower total positive symptom score before medication than schizophrenics with D4E1(A1/A1). There was no association between the polymorphisms and negative symptoms.
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Affiliation(s)
- K Ohara
- Department of Psychiatry, Hamamatsu University School of Medicine, Shizuoka, Japan
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13
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Abstract
To investigate effects of intraduodenal air insufflation on sphincter of Oddi motility, manometric recordings were obtained during fasting from the sphincter and duodenum in four conscious dogs with duodenal cannula. At 40% of the mean cycle length of the migrating motor complex predetermined from baseline recording, 160 ml of air was injected into the duodenum. In both the sphincter and duodenum, air insufflation produced premature phase III-like activity in seven of 20 experiments (35%) or nonspecific excitatory reaction in eight (40%). In the remaining five experiments (25%), the sphincter exhibited a transient inhibitory response, while the duodenum showed the nonspecific excitatory reaction. Basal pressure of the sphincter increased immediately after air insufflation in 90% of the 20 experiments. The mean basal pressure increased from 12.3 +/- 1.6 mm Hg to 22.4 +/- 2.1 mm Hg (P < 0.0001) and minimum basal pressure from 2.9 +/- 0.9 mm Hg to 4.7 +/- 0.8 mm Hg (P < 0.001). These results indicate that intraduodenal air insufflation does affect motility of the sphincter of Oddi and duodenum in conscious dogs.
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Affiliation(s)
- Z L Deng
- Department of Surgery I, Kyushu University Faculty of Medicine, Fukuoka, Japan
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Ohara K, Xie DW, Ishigaki T, Deng ZL, Nakamura Y, Suzuki Y, Miyasato K, Ohara K. The genes encoding the 5HT1D alpha and 5HT1D beta receptors are unchanged in patients with panic disorder. Biol Psychiatry 1996; 39:5-10. [PMID: 8719119 DOI: 10.1016/0006-3223(95)00108-5] [Citation(s) in RCA: 15] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
To determine the serotonergic function in panic disorder, sequencing of the genes encoding the 5HT1D alpha and 5HT1D beta receptors was carried out. The genes for the 5HT1D alpha and 5HT1D beta receptors were amplified by polymerase chain reaction and sequenced by the dideoxy method. Some patients have both nucleotides C and T at position 1080 in 5HT1D alpha receptor gene; however, both of them code the same amino acid, asparagine. The 5HT1D beta receptor gene had a substitution from GCA276 to GCG276, not only panic disorder but also in controls; however, this substitution does not change the corresponding amino acid, alanine92.
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Affiliation(s)
- K Ohara
- Department of Psychiatry, Hamamatsu University School of Medicine, Shizuoka, Japan
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15
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Deng ZL, Yamashita H, Nakafusa Y, Kuroki S, Furukawa K, Chijiiwa K, Tanaka M. Male breast cancer--a report of 4 cases and a review of the literature. Fukuoka Igaku Zasshi 1995; 86:288-292. [PMID: 7649518] [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: 05/21/2023]
Abstract
Male breast cancer represents only about 1% of all breast cancers. Of 451 patients with breast cancer, we have experienced four cases of male breast cancer. Characteristics of these male patients with breast cancer were an older age at diagnosis (mean: 68.5 years old), prolonged duration of symptom (ranged from 1 month to 6 years with a mean of 25.5 months), centrally located tumor, advanced staging and infiltrating ductal carcinoma in histologic type. Some reported risk factors for the development of male breast cancer, such as radiation exposure, hormonal factors and gallstone disease were present.
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Affiliation(s)
- Z L Deng
- Department of Surgery 1, Kyushu University Faculty of Medicine, Fukuoka, Japan
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Abstract
We studied the 5-HT1A receptor gene in 50 mood disorders and 50 normal volunteers. The 5-HT1A receptor gene was amplified by polymerase chain reaction and sequenced by the dideoxy method. The sequence of the 5-HT1A receptor encodes a protein of 422 amino acids, that is, one amino acid longer than the reported sequence (Kobilka et al. 1987). The DNA sequence at positions 454 to 459 is CGC GCC GCT, not CCG CGT, and the amino acids sequence at these positions is changing from proline arginine to arginine alanine alanine. These differences, however, were observed in both mood disorders and controls. One silent polymorphism, CTG to GTA at position 294, was found. These results suggest that the 5-HT1A receptor gene is intact in mood disorders.
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Affiliation(s)
- D W Xie
- Department of Psychiatry, Hamamatsu University School of Medicine, Japan
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17
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Zhao PZ, Deng ZL, Zhang ZS, Zhang HY, Wang HY, Zhu XQ, Kun-xong L, Ying L, Zhong C, Rui-biao Y. The influence of age and location of arterial lesion on the pathogenesis and development of early atherosclerotic lesions in youth. Chin Med J (Engl) 1994; 107:171-5. [PMID: 8088176] [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: 01/28/2023] Open
Abstract
From 1986 to 1989, 324 aortae from accidental death aged 15-39 were collected from two locations, one of higher prevalence (Beijing in North China), and the other of lower prevalence (Nanning in South China) of atherosclerosis (AS) and coronary heart disease (CHD). Morphometry and biochemical analyses, were used in the study with emphasis on the changes of smooth muscle cells (SMC) in the aortic intima and on the aortic proteoglycans (PGs) of specimens from both locations to elucidate their relationship with the pathogenesis and development of AS and to find ways, if any, for the prevention and control of AS. The results showed that the densities, especially the area density of the cell nuclei of aortic SMC were significantly higher in specimens from the North than those from the South (P < 0.01). Nuclear densities of SMC negatively correlated with alcian blue-positive substances; both total PGs and Heparin sulfate PG (HSPG, inhibitory to SMC proliferation) of the aortic intima and media were lower in specimens from the North than those from the South (P < 0.01). The percentage of sudanophilic lesion (SL) in the total intimal area, showing the extent of fatty infiltration of aortae from the two locations, was similar except that of the male abdominal aortae which was higher in the North (P < 0.01). The above findings showed that decreased content of HSPG which is inhibitory to SMC proliferation might be one of the causes of the augmentation of aortic SMC proliferation in Beijing specimens; and also the increased serum cholesterol concentration of the population in Nanning was reflected in the SL of the aortic intima.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- P Z Zhao
- Cardiovascular Institute, Chinese Academy of Medical Sciences, Beijing
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18
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Abstract
The contents of three species of proteoglycans (PGs), heparan sulfate PG(HSPG), chondroitin sulfate PG(CSPG) and dermatan sulfate chondroitin sulfate PG(DSCSPG), in human thoracic aortas of subjects from districts of high (Beijin, in North China) and low (Nanning, in South China) prevalence of atherosclerosis in China were quantitated. Higher aortic HSPG and DSCSPG (but lower DS) in samples from Nanning than those from Beijing might be implicated in the lower prevalence of atherosclerosis in the former.
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Affiliation(s)
- Y S Chang
- Division of Biochemistry, Chinese Academy of Medical Sciences, Beijing
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19
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Abstract
Fourteen cases of penicilliosis marneffei occurred in persons in the Guangxi region of the People's Republic of China; the first known case of that disease had been found in Vietnamese bamboo rats (Rhizomys sinensis). A survey of the wild rats in this region was initiated to determine if any of these animals were infected by Penicillium marneffei. Although R. sinensis rats live in the study area, they are relatively rare. The only rats captured were another species of bamboo rat (R. pruinosus). Of the 19 rats captured, 18 yielded cultures of P. marneffei from one or more of their internal organs. The implications of this finding in respect to the epidemiology of penicilliosis marneffei are discussed.
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Deng ZL, Connor DH. Progressive disseminated penicilliosis caused by Penicillium marneffei. Report of eight cases and differentiation of the causative organism from Histoplasma capsulatum. Am J Clin Pathol 1985; 84:323-7. [PMID: 4036861 DOI: 10.1093/ajcp/84.3.323] [Citation(s) in RCA: 126] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Eight patients with fatal penicilliosis caused by Penicillium marneffei are reported. All were natives of southern rural Guangxi, and none had a predisposing illness or evidence of altered immunity. The distinctive features of P. marneffei include proliferation of yeast-like cells within histiocytes, followed by the development of focal necrosis and, eventually, large abscesses. Outside the histiocytes, the fungi elongate, become slightly curved, and form septa. In vitro, P. marneffei produces a red pigment which diffuses into the culture medium. The differentiation between P. marneffei and Histoplasma capsulatum is described, and possible reservoirs for P. marneffei are discussed.
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