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Luo M, Chen P, Tian Y, Rigzin N, Sonam J, Shang F, Tai C, Li T, Sang H. Hif-1α expression targets the TMA/Fmo3/TMAO axis to participate in gallbladder cholesterol stone formation in individuals living in plateau regions. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167188. [PMID: 38657913 DOI: 10.1016/j.bbadis.2024.167188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 04/26/2024]
Abstract
The incidence of gallbladder cholesterol stones (GCS) increases rapidly among people living in high-altitude hypoxic environments compared to those in normoxic areas. Upregulation of hepatic hypoxia inducible factor 1α (Hif-1α) plays a key role in the formation of GCS. High plasma trimethylamine-N-oxide (TMAO) levels are positively correlated with the occurrence of GCS. We hypothesized that HIF-1α may upregulate TMAO levels by promoting the transcription of flavin-containing monooxygenase 3 (Fmo3), which eventually leads to GCS formation. Our study shows that in women, high plasma total cholesterol and apolipoprotein B were positively correlated with cholecystolithiasis and hypoxia. Hif-1α binds to the Fmo3 promoter and promotes Fmo3 expression. Hypoxia and lithogenic diet induce the expression of Hif-1α, Fmo3, TMAO and cholesterol tube transporters in the livers of mice, disturb the proportion of bile and plasma components, and induce the formation of GCS. In cell experiments, silencing Hif-1α downregulates the expression of Fmo3, TMAO and cholesterol tube transporters. In a mouse model of hypoxic cholecystolithiasis, silencing Hif-1α downregulates the expression of related genes, restores the proportion of bile and plasma lipid components, and reduces the formation of GCS. Our study shows that Hif-1α binds to the promoter region of Fmo3 and promotes Fmo3 transcription. Thus, it mediates the transcriptional activation of the TMA/Fmo3/TMAO pathway, upregulates the expression of ATP-binding cassettes (Abc) g5 and g8, and participates in the regulation of the occurrence of GCS in the plateau region.
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Affiliation(s)
- Mingxiao Luo
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Peng Chen
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Ye Tian
- Department of Thoracic Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Norbu Rigzin
- Department of General Surgery, Naqu People's Hospital of the Tibet Autonomous Region, Naqu, Tibet, PR China
| | - Jigme Sonam
- Department of General Surgery, Naqu People's Hospital of the Tibet Autonomous Region, Naqu, Tibet, PR China
| | - Feihu Shang
- Department of General Surgery, Naqu People's Hospital of the Tibet Autonomous Region, Naqu, Tibet, PR China
| | - Chuang Tai
- Department of General Surgery, Naqu People's Hospital of the Tibet Autonomous Region, Naqu, Tibet, PR China
| | - Tingting Li
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Haiquan Sang
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China; Department of General Surgery, Naqu People's Hospital of the Tibet Autonomous Region, Naqu, Tibet, PR China.
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2
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Luo M, Li T, Sang H. The role of hypoxia-inducible factor 1α in hepatic lipid metabolism. J Mol Med (Berl) 2023; 101:487-500. [PMID: 36973503 DOI: 10.1007/s00109-023-02308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 02/06/2023] [Accepted: 03/06/2023] [Indexed: 03/29/2023]
Abstract
Chronic liver disease is a major public health problem with a high and increasing prevalence worldwide. In the progression of chronic liver disease, steatosis drives the progression of the disease to cirrhosis or even liver cancer. Hypoxia-inducible factor 1α (HIF-1α) is central to the regulation of hepatic lipid metabolism. HIF-1α upregulates the expression of genes related to lipid uptake and synthesis in the liver and downregulates the expression of lipid oxidation genes. Thus, it promotes intrahepatic lipid deposition. In addition, HIF-1α is expressed in white adipose tissue, where lipolysis releases free fatty acids (FFAs) into the blood. These circulating FFAs are taken up by the liver and accumulate in the liver. The expression of HIF-1α in the liver condenses bile and makes it easier to form gallstones. Contrary to the role of hepatic HIF-1α, intestinal HIF-1α expression can maintain a healthy microbiota and intestinal barrier. Thus, it plays a protective role against hepatic steatosis. This article aims to provide an overview of the current understanding of the role of HIF-1α in hepatic steatosis and to encourage the development of therapeutic agents associated with HIF-1α pathways. KEY MESSAGES: • Hepatic HIF-1α expression promotes lipid uptake and synthesis and reduces lipid oxidation leading to hepatic steatosis. • The expression of HIF-1α in the liver condenses bile and makes it easier to form gallstones. • Intestinal HIF-1α expression can maintain a healthy microbiota and intestinal barrier.
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Affiliation(s)
- Mingxiao Luo
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tingting Li
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
| | - Haiquan Sang
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
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3
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Onkanga IO, Sang H, Hamilton R, Ondigo BN, Jaoko W, Odiere MR, Ganley-Leal L. CD193
(
CCR3
) expression by B cells correlates with reduced
IgE
production in paediatric schistosomiasis. Parasite Immunol 2023; 45:e12979. [PMID: 36971331 DOI: 10.1111/pim.12979] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/21/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
We demonstrate that CD193, the eotaxin receptor, is highly expressed on circulating B cells in paediatric schistosomiasis mansoni. CD193 plays a role in directing granulocytes into sites of allergic-like inflammation in the mucosa, but little is known about its functional significance on human B cells. We sought to characterize CD193 expression and its relationship with S. mansoni infection. We found that CD193+ B cells increased with the intensity of schistosome infection. In addition, a significant negative association was observed between CD193 expression by B cells and IgE production. Decreased IgE levels are generally associated with susceptibility to re-infection. B cell stimulation with eotaxin-1 increased CD193 levels whereas IL-4 led to a reduction. This was supported by plasma levels of eotaxin-1 correlating with CD193 levels on B cells and other cells. In contrast, CD193 expression was induced on naive B cells with a combination of IL-10 and schistosome antigens. Whereas T cells had a modest increase in CD193 expression, only B cell CD193 appeared functionally chemotactic to eotaxin-1. Thus, CD193+ B cells, which co-express CXCR5, may be enroute to sites with allergic-like inflammation, such as gastrointestinal follicles, or even to Th2 granulomas, which develop around parasite eggs. Overall, our results suggest that schistosome infection may promote CD193 expression and suppress IgE via IL-10 and other undefined mechanisms related to B cell trafficking. This study adds to our understanding of why young children may have poor immunity. Nonetheless, praziquantel treatment was shown to reduce percentages of circulating CD193+ B cells lending hope for future vaccine efforts.
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Affiliation(s)
- I O Onkanga
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
- KAVI-Institute of Clinical Research, and Department of Medical Microbiology & Immunology, University of Nairobi, Nairobi, Kenya
| | - H Sang
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - R Hamilton
- Elegance Biotechnologies, LLC, Wayne, Pennsylvania, USA
| | - B N Ondigo
- Department of Biochemistry and Molecular Biology, Faculty of Science, Egerton University, Egerton, Kenya
| | - W Jaoko
- KAVI-Institute of Clinical Research, and Department of Medical Microbiology & Immunology, University of Nairobi, Nairobi, Kenya
| | - M R Odiere
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - L Ganley-Leal
- Elegance Biotechnologies, LLC, Wayne, Pennsylvania, USA
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4
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Li T, Tian Y, Ren W, Chen P, Luo M, Sang H. Gab1 regulates invadopodia and autocrine VEGF through SHP2/ERK1/2 in hilar cholangiocarcinoma cells. Am J Transl Res 2022; 14:8934-8946. [PMID: 36628230 PMCID: PMC9827304] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/03/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVES Hilar cholangiocarcinoma is the most common malignant tumors of the biliary tract and it has high invasiveness. Invadopodia and autocrine vascular endothelial growth factor (VEGF) are closely related to tumor invasiveness. We investigated the role of Grb2-associated binder 1 (Gab1) in invadopodia and autocrine VEGF in hilar cholangiocarcinoma cells. METHODS The expression of Gab1 and vascular endothelial growth factor receptor 2 (VEGFR-2) in tumor cells was detected by real-time PCR. MTT, flow cytometry and transwell assays were used to determine the effect of Gab1 on the biological behavior of tumor cells. In situ gelatin zymogram, western blotting, ELISA and immunofluorescence were used to study Gab1- and apatinib-regulated invadopodia, epithelial-mesenchymal transition (EMT), and VEGF autocrine signaling through the SHP2/ERK1/2 pathway. RESULTS Gab1 controlled invadopodia maturation via the regulation of cortactin and EMT. Additionally, Gab1-regulated autocrine VEGF was observed in tumor cells expressing VEGFR-2, and endogenous and exogenous VEGF regulated VEGF expression through p-VEGFR-2 nuclear aggregation. Furthermore, the Gab1/SHP2/ERK1/2 axis regulated invadopodia and VEGF autocrine function in tumor cells. Finally, apatinib inhibited the malignant behavior of tumor cells and the nuclear aggregation of p-VEGFR-2 by inhibiting the phosphorylation of VEGFR-2 (direct) and the expression of Gab1 (indirect) in tumor cells. CONCLUSIONS This study demonstrates that Gab1 and apatinib affect tumor cell invadopodia and autocrine VEGF expression through the Gab1/SHP2/ERK1/2 axis in hilar cholangiocarcinoma cells.
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Affiliation(s)
- Tingting Li
- Department of Clinical Genetics, Shengjing Hospital of China Medical UniversityShenyang 110004, Liaoning, P. R. China
| | - Ye Tian
- Department of Thoracic Surgery, The Fourth Affiliated Hospital of China Medical UniversityShenyang 110032, Liaoning, P. R. China
| | - Weiqiang Ren
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical UniversityShenyang 110032, Liaoning, P. R. China
| | - Peng Chen
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical UniversityShenyang 110032, Liaoning, P. R. China
| | - Mingxiao Luo
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical UniversityShenyang 110032, Liaoning, P. R. China
| | - Haiquan Sang
- Department of General Surgery, The Fourth Affiliated Hospital of China Medical UniversityShenyang 110032, Liaoning, P. R. China
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5
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Hong H, Zhu H, Li C, Zang C, Sang H, Chen L, Wang A. [FNDC1 is highly expressed in lung adenocarcinoma and closely related with poor prognosis]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1182-1190. [PMID: 36073217 DOI: 10.12122/j.issn.1673-4254.2022.08.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the expression of fibronectin type Ⅲ domain containing 1(FNDC1) protein in lung adenocarcinoma and its prognostic significance. METHODS The expression of FNDC1 in lung adenocarcinoma was predicted by analysis of data from GEO database and GEPIA, and the results were verified by immunohistochemical staining in 92 pairs of clinical specimens of lung adenocarcinoma and adjacent tissues.We further analyzed the correlation of FNDC1 expression with the clinicopathological features of the patients, and evaluated its prognostic value using Cox survival analysis. RESULTS Analysis of the data form GEO database and GEPIA showed a significantly higher expression level of FNDC1 in lung adenocarcinoma than in matched normal tissues (P < 0.05).Kaplan-Meier survival analysis suggested that a high expression of FNDC1 protein was associated with a significantly shorter overall survival time of the patients (P < 0.05).Immunohistochemistry of the clinical specimens also showed a significantly higher protein expression of FNDC1 in lung adenocarcinoma tissues than in paired adjacent tissues (P < 0.001).A high expression of FNDC1 protein was significantly correlated with advanced clinical stage, T stage and N stage (P < 0.05).Cox univariate and multivariate regression survival analysis indicated that an increased expression of FNDC1 was an independent risk factor for poor prognosis of the patients with lung adenocarcinoma (P < 0.05). CONCLUSION FNDC1 protein is highly expressed in patients with lung adenocarcinoma and in closely related with the occurrence, progression and prognosis of the tumor, suggesting the value of FNDC1 protein as a potential biomarker for assessment of the survival and prognosis of patients with lung adenocarcinoma.
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Affiliation(s)
- H Hong
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.,Graduate School of Bengbu Medical College, Bengbu 233030, China
| | - H Zhu
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.,Graduate School of Bengbu Medical College, Bengbu 233030, China
| | - C Li
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.,Graduate School of Bengbu Medical College, Bengbu 233030, China
| | - C Zang
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.,Graduate School of Bengbu Medical College, Bengbu 233030, China
| | - H Sang
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - L Chen
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
| | - A Wang
- Department of Thoracic Surgery, First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China
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6
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Liu K, Zeng M, Chen J, Hui Y, Kong Q, Duan Q, Sang H. Multisystem Langerhans cell histiocytosis with diabetes insipidus in an adult. Indian J Dermatol 2022; 67:184-186. [PMID: 36092185 PMCID: PMC9455141 DOI: 10.4103/ijd.ijd_741_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Kh Liu
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China,Nanjing Medical University, Nanjing 210002, P R China
| | - Mh Zeng
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China
| | - J Chen
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China
| | - Y Hui
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China
| | - Qt Kong
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China
| | - Qf Duan
- Unit 31610 of the PLA, Zhejiang 310000, P R China E-mail:
| | - H Sang
- From the Jinling Hospital Department of Dermatology, Nanjing 210002, P R China,Nanjing Medical University, Nanjing 210002, P R China
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7
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Yuan F, Chen J, Liu F, Dang YC, Kong QT, Sang H. Successful treatment of pulmonary mucormycosis caused by Rhizopus microsporus with posaconazole. Eur J Med Res 2021; 26:131. [PMID: 34775981 PMCID: PMC8591890 DOI: 10.1186/s40001-021-00602-x] [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: 03/07/2021] [Accepted: 11/03/2021] [Indexed: 12/19/2022] Open
Abstract
Background Mucormycosis is a rare fungal infection occurring chiefly in the lung or the rhino-orbital-cerebral compartment, particularly in patients with immunodeficiency or diabetes mellitus. Among Mucorales fungi, Rhizopus spp. are the most common cause of mucormycosis. Case presentation We report a case of pulmonary mucormycosis caused by Rhizopus microsporus in a young patient with diabetes but no other apparent risk factors. The diagnosis mainly relied on clinical manifestation, positive pulmonary tissue biopsy, and fungal culture. The patient was successfully treated with posaconazole oral suspension and remains asymptomatic at one-year follow-up. Conclusions Pulmonary mucormycosis is a life-threatening condition and posaconazole is an effective treatment for pulmonary mucormycosis caused by Rhizopus microspores.
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Affiliation(s)
- F Yuan
- Sch Med, Southeast Univ, Nanjing, 210009, People's Republic of China
| | - J Chen
- Dept Dermatology, Sch Med, Jinling Hosp, Nanjing Univ, Nanjing, 210002, People's Republic of China
| | - F Liu
- Dept Dermatology, Sch Med, Jinling Hosp, Nanjing Univ, Nanjing, 210002, People's Republic of China
| | - Y C Dang
- Dept Dermatology, Sch Med, Jinling Hosp, Nanjing Univ, Nanjing, 210002, People's Republic of China
| | - Q T Kong
- Dept Dermatology, Sch Med, Jinling Hosp, Nanjing Univ, Nanjing, 210002, People's Republic of China.
| | - H Sang
- Dept Dermatology, Sch Med, Jinling Hosp, Nanjing Univ, Nanjing, 210002, People's Republic of China.
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8
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Chen XQ, Zheng DY, Xiao YY, Dong BL, Cao CW, Ma L, Tong ZS, Zhu M, Liu ZH, Xi LY, Fu M, Jin Y, Yin B, Li FQ, Li XF, Abliz P, Liu HF, Zhang Y, Yu N, Wu WW, Xiong XC, Zeng JS, Huang HQ, Jiang YP, Chen GZ, Pan WH, Sang H, Wang Y, Guo Y, Shi DM, Yang JX, Chen W, Wan Z, Li RY, Wang AP, Ran YP, Yu J. Aetiology of tinea capitis in China: A multicentre prospective study. Br J Dermatol 2021; 186:705-712. [PMID: 34741300 DOI: 10.1111/bjd.20875] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Tinea capitis is still common in developing countries, such as China. Its pathogen spectrum varies across regions and changes over time. OBJECTIVES This study aimed to clarify the current epidemiological characteristics and pathogen spectrum of tinea capitis in China. METHODS A multicentre, prospective descriptive study involving 29 tertiary hospitals in China was conducted. From August 2019 to July 2020, 611 patients with tinea capitis were enrolled. Data concerning demography, risk factors and fungal tests were collected. The pathogens were further identified by morphology or molecular sequencing when necessary in the central laboratory. RESULTS Among all enrolled patients, 74.1% of the cases were 2- to 8-year-olds. The children with tinea capitis were mainly boys (56.2%) and more likely to have an animal contact history (57.4% vs. 35.3%, P = 0.012) and zoophilic dermatophyte infection (73.5%). The adults were mainly females (83.3%) and more likely to have anthropophilic agent infection (53.5%). The most common pathogen was zoophilic Microsporum canis (354, 65.2%), followed by anthropophilic Trichophyton violaceum (74, 13.6%). In contrast to the eastern, western and northeastern regions where zoophilic M. canis predominated, anthropophilic T. violaceum predominated in central China (69.2%, P < 0.0001), where the patients had the most tinea at other sites (20.3%) and dermatophytosis contact (25.9%) with the least animal contact (38.8%). Microsporum ferrugineum was the most common anthropophilic agent in the western area, especially in Xinjiang Province. CONCLUSIONS Boys aged approximately 5 years were mainly affected. Dermatologists are advised to pay more attention to the different transmission routes and pathogen spectra in different age groups from different regions.
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Affiliation(s)
- X-Q Chen
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - D-Y Zheng
- Department of Dermatology and Venereology, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Y-Y Xiao
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - B-L Dong
- Department of Dermatology, Wuhan No.1 Hospital, Wuhan, China
| | - C-W Cao
- Department of Dermatology and Venereology, the First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - L Ma
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Z-S Tong
- Department of Dermatology, Wuhan No.1 Hospital, Wuhan, China
| | - M Zhu
- Department of Dermatology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Z-H Liu
- Department of Dermatology, Hangzhou Third People's Hospital, Affiliated Hangzhou Dermatology Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - L-Y Xi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - M Fu
- Department of Dermatology, Xijing Hospital, Xi'an, China
| | - Y Jin
- Department of Dermatology, Dermatology Hospital of Jiangxi Province, Nanchang, China
| | - B Yin
- Department of Dermatology, Chengdu Second People's Hospital, Chengdu, China
| | - F-Q Li
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, China
| | - X-F Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - P Abliz
- Department of Dermatology, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - H-F Liu
- Department of Dermatology, Dermatology Hospital of Southern Medical University, Guangzhou, China
| | - Y Zhang
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - N Yu
- Department of Dermatology, General Hospital of Ningxia Medical University, Yinchuan, China
| | - W-W Wu
- Department of Dermatology, the Fifth People's Hospital of Hainan Province, Haikou, China
| | - X-C Xiong
- Department of Dermatology, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - J-S Zeng
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H-Q Huang
- Department of Dermatology and Venereology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y-P Jiang
- Department of Dermatology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - G-Z Chen
- Department of Dermatology, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - W-H Pan
- Department of Dermatology, Shanghai Changzheng Hospital, Naval Military Medical University, Shanghai, China
| | - H Sang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Wang
- Department of Dermatology, Changhai Hospital of Shanghai, Shanghai, China
| | - Y Guo
- Department of Dermatology, the Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - D-M Shi
- Department of Dermatology, Jining No, People's Hospital, Jining, China
| | - J-X Yang
- Department of Dermatology, 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - W Chen
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Z Wan
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - R-Y Li
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - A-P Wang
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
| | - Y-P Ran
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - J Yu
- Department of Dermatology and Venereology, Peking University First Hospital, National Clinical Research Centre for Skin and Immune Diseases, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
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Sang H, Li WJ, Zhou Y, Zhu H. [Advances in research on the relationship between bile acid, gut microbiota and the occurrence and development of cholangiocarcinoma]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:493-496. [PMID: 34107593 DOI: 10.3760/cma.j.cn501113-20200211-00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Cholangiocarcinoma is a kind of malignant tumor that originates from the bile duct epithelium. Due to its insidious nature, there is no effective early diagnosis and treatment method. Therefore, once it is detected, it is at an advanced stage and has a poor prognosis. Bile acid is the main component of bile, which acts on cholangiocytes through bile acid receptors and plays a key role in the development of cholangiocarcinoma. Gut microbiota can participate in the occurrence of cholangiocarcinoma by regulating bile acid metabolism. This review mainly focuses on the role of bile acid and bile acid receptors in the occurrence and development of cholangiocarcinoma and the impact of gut microbiota in it.
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Affiliation(s)
- H Sang
- Department of Gastroenterology, the First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
| | - W J Li
- Department of Gastroenterology, the First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
| | - Y Zhou
- Department of Gastroenterology, the First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
| | - H Zhu
- Department of Gastroenterology, the First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
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10
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Guo ZX, Zhou FZ, Song W, Yu LL, Yan WJ, Yin LH, Sang H, Zhang HY. Suppression of microRNA-101 attenuates hypoxia-induced myocardial H9c2 cell injury by targeting DIMT1-Sp1/survivin pathway. Eur Rev Med Pharmacol Sci 2020; 24:11986. [PMID: 33336713 DOI: 10.26355/eurrev_202012_23952] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The article "Suppression of microRNA-101 attenuates hypoxia-induced myocardial H9c2 cell injury by targeting DIMT1-Sp1/survivin pathway, by Z.-X. Guo, F.-Z. Zhou, W. Song, L.-L. Yu, W.-J. Yan, L.-H. Yin, H. Sang, H.-Y. Zhang, published in Eur Rev Med Pharmacol Sci 2018; 22 (20): 6965-6976-DOI: 10.26355/eurrev_201810_16167-PMID: 30402863" has been withdrawn from the authors due to some inaccuracies. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/16167.
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Affiliation(s)
- Z-X Guo
- Department of Cardiology, Taian City Central Hospital, Taian, China
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Kong QT, Duan YY, Yuan F, Chen J, Liu F, Dang YC, Sang H. Subcutaneous Infection Caused by Cladosporium sphaerospermum: A Case Report. Mycopathologia 2020; 186:135-136. [PMID: 33136225 DOI: 10.1007/s11046-020-00503-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 10/21/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Q T Kong
- Jinling Hospital, Department of Dermatology, School of Medicine, Nanjing University, Nanjing, 210002, People's Republic of China
| | - Y Y Duan
- Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, 210042, People's Republic of China
| | - F Yuan
- School of Medicine, Southeast University, Nanjing, 210009, People's Republic of China
| | - J Chen
- Jinling Hospital, Department of Dermatology, School of Medicine, Nanjing University, Nanjing, 210002, People's Republic of China
| | - F Liu
- Jinling Hospital, Department of Dermatology, School of Medicine, Nanjing University, Nanjing, 210002, People's Republic of China
| | - Y C Dang
- Jinling Hospital, Department of Dermatology, School of Medicine, Nanjing University, Nanjing, 210002, People's Republic of China
| | - H Sang
- Jinling Hospital, Department of Dermatology, School of Medicine, Nanjing University, Nanjing, 210002, People's Republic of China.
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Ma M, Sang H, Ye Y, Zhuang H, Zhuang Z, Qiu Y, Li X, Xu D, Jiang MH. An analysis of the variations and clinical applications of the lateral circumflex femoral artery. Folia Morphol (Warsz) 2020; 80:557-566. [PMID: 32827310 DOI: 10.5603/fm.a2020.0094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/08/2020] [Accepted: 07/08/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Identifying the arterial variation of the lateral circumflex femoral artery (LCFA) is a vital step in planning surgical and radiological approach. The aim of the study was to evaluate the variations and discuss the clinical correlates of the LCFA. MATERIALS AND METHODS Fifty eight adult cadavers (male 45, female 13) with 115 usable sides were used to assess and classify the origin and branches of the LCFA. Also its external diameter, distance from mid-inguinal ligament to sites of origin from the profunda femoris artery or femoral arteries. RESULTS There were seven types of LCFA variations in this sample. We classified them as types A to G, of which type A was normal, that is, the one showing a single LCFA arising from the profunda femoris artery. Nearly 50.43% of the sample had type B-G variations, each having 13, 10, 23, 4, 4, and 3 cases, accounting for 11.30%, 8.70%, 20.00%, 3.48%, 3.48%, and 2.61%, respectively. CONCLUSIONS There are many variant types in the LCFA. To avoid iatrogenic injuries, clinicians must have a sound understanding of the variation types of this important blood vessel.
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Affiliation(s)
- M Ma
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - H Sang
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - Y Ye
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - H Zhuang
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - Z Zhuang
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - Y Qiu
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - X Li
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - D Xu
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China
| | - M H Jiang
- Department of Human Anatomy Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, P.R. China.
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Li T, Sang H, Chu G, Zhang Y, Qi M, Liu X, Cui W, Zhao Y. Genotype-phenotype correlation in 75 patients with small supernumerary marker chromosomes. Mol Cytogenet 2020; 13:30. [PMID: 32684981 PMCID: PMC7362453 DOI: 10.1186/s13039-020-00494-2] [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: 04/01/2020] [Accepted: 06/10/2020] [Indexed: 11/10/2022] Open
Abstract
Background Small supernumerary marker chromosomes (sSMCs) are rare structural abnormalities in the population; however, they are frequently found in children or fetuses with hypoevolutism and infertile adults. sSMCs are usually observed first by karyotyping, and further analysis of their molecular origin is important in clinical practice. Next-generation sequencing (NGS) combined with Sanger sequencing helps to identify the chromosomal origins of sSMCs and correlate certain sSMCs with a specific clinical picture. Results Karyotyping identified 75 sSMCs in 74,266 samples (0.1% incidence). The chromosomal origins of 27 of these sSMCs were detected by sequencing-related techniques (NGS, MLPA and STR). Eight of these sSMCs are being reported for the first time. sSMCs mainly derived from chromosomal X, Y, 15, and 18, and some sSMC chromosomal origins could be correlated with clinical phenotypes. However, the chromosomal origins of the remaining 48 sSMC cases are unknown. Thus, we will develop a set of economical and efficient methods for clinical sSMC diagnosis. Conclusions This study details the comprehensive characterization of 27 sSMCs. Eight of these sSMCs are being reported here for the first time, providing additional information to sSMC research. Identifying sSMCs may reveal genotype-phenotype correlations and integrate genomic data into clinical care.
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Affiliation(s)
- Tingting Li
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Haiquan Sang
- Department of General Surgery, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Guoming Chu
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Yuanyuan Zhang
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Manlong Qi
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Xiaoliang Liu
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Wanting Cui
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
| | - Yanyan Zhao
- Department of Clinical Genetics, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping District, Shenyang, 110003 China
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Chen P, Liu J, Zeng M, Sang H. Exploring the molecular mechanism of azole resistance in Aspergillus fumigatus. J Mycol Med 2020; 30:100915. [DOI: 10.1016/j.mycmed.2019.100915] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/24/2019] [Accepted: 11/24/2019] [Indexed: 12/20/2022]
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Li X, Guan L, Zilundu PLM, Chen J, Chen Z, Ma M, Zhuang H, Zhuang Z, Qiu Y, Ye F, Wu X, Sang H, Ye Y, Han Y, Yao H, Li H, Zhong G, Wu H, Jiang Z, Chu G, Xu D, Zhou L. The applied anatomy and clinical significance of the proximal, V1 segment of vertebral artery. Folia Morphol (Warsz) 2019; 78:710-719. [PMID: 30949997 DOI: 10.5603/fm.a2019.0039] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/05/2019] [Accepted: 03/06/2019] [Indexed: 11/25/2022]
Abstract
BACKGROUND The aim of the study was to probe the morphological features of the proximal segment (V1) of vertebral artery (VA) in a sample of Chinese cadavers. MATERIALS AND METHODS The origin, course and outer diameter at origin of the pre-vertebral part of the VAs were evaluated in 119 adult cadavers. RESULTS It was found that 94.12% of the VAs originated from the subclavian arteries, bilaterally. The variant origins were present in 5.88% of the cadavers and all originated directly from the arch of the aorta. All the variations were observed on the left side of male cadavers. The average outer diameters at origin of the normal and variation groups were 4.35 ± 1.00 mm and 4.82 ± ± 1.42 mm, respectively, p = 0.035. In the normal group, but not in the variation group, the average diameter in the males was significantly larger than that in the females (4.50 ± 0.99 mm, 3.92 ± 0.92 mm, respectively, p = 0.000). In addition, only 5 cadavers in the normal group had hypoplastic VAs (4.20%, 4 males, 3 right-sided). Vertebral artery dominance (VAD) was present in 91 (69 males) out of 112 cadavers and more common on the left (n = 48). In addition, 3 cadavers satisfied conditions for coexistence of VAD and vertebral artery hypoplasia. All 7 cadavers in the variation group exhibited VAD, which was more common on the right side (n = 5). CONCLUSIONS The morphologic variations and frequencies described above have implications for the early prevention, abnormal anatomy detection, accurate diagnosis, safe surgery and endovascular treatment of cardiovascular and neurological disease.
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Affiliation(s)
- X Li
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - L Guan
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Prince L M Zilundu
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - J Chen
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Z Chen
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - M Ma
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - H Zhuang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Z Zhuang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Y Qiu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - F Ye
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - X Wu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - H Sang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Y Ye
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Y Han
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - H Yao
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - H Li
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - G Zhong
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - H Wu
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - Z Jiang
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - G Chu
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
| | - D Xu
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China.
| | - L Zhou
- Department of Human Anatomy, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China.,Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou City, Guangdong Province, China
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Guo ZX, Zhou FZ, Song W, Yu LL, Yan WJ, Yin LH, Sang H, Zhang HY. Suppression of microRNA-101 attenuates hypoxia-induced myocardial H9c2 cell injury by targeting DIMT1-Sp1/survivin pathway. Eur Rev Med Pharmacol Sci 2018; 22:6965-6976. [PMID: 30402863 DOI: 10.26355/eurrev_201810_16167] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE MicroRNAs (miRNAs) are small single-stranded RNAs in eukaryotic cells, which play important regulatory roles in the pathogenesis of various diseases. We aimed to investigate the effects of miRNA-101 (miR-101) on hypoxia-induced myocardial infarction (MI) cell injury model (myocardial H9c2 cell injury model). The possible target gene of miR-101 was also analyzed. MATERIALS AND METHODS H9c2 cells were exposed to hypoxia treatment. Cell viability, migration, invasion, apoptosis and the expression of miR-101 were detected using CCK-8 assay, transwell assay, flow cytometer analysis, Western blotting and qRT-PCR, respectively. Then, the effects of miR-101 overexpression or suppression on the cell injury induced by hypoxia were assessed. Dual luciferase reporter assay was used to analyze the possible target gene of miR-101. Finally, the effects of dimethyladenosine transferase 1 homolog (DIMT1), the possible target gene of miR-101, on H9c2 cell injury were investigated. RESULTS Hypoxia significantly induced H9c2 cell injury. miR-101 was up-regulated after hypoxia induction. Hypoxia-induced cell injury was significantly reversed by miR-101 suppression and exacerbated by miR-101 overexpression. DIMT1 was a direct target gene of miR-101. Knockdown of DIMT1 markedly inhibited the protective effects of miR-101 suppression on hypoxia-induced cell injury by suppressing specific protein 1 (Sp1)/Survivin pathway. CONCLUSIONS We verified the critical roles of miR-101 in regulating myocardial cell injury induced by hypoxia. DIMT1-mediated the Sp1/Survivin pathway was also involved in this process. Our findings replenished the understanding of the regulatory roles of miRNAs in hypoxia-induced MI cell injury and provided new molecular target for therapy and diagnosis of MI.
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Affiliation(s)
- Z-X Guo
- Department of Cardiology, Taian City Central Hospital, Taian, China.
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Kou CX, Zhang YY, Kong QT, Li J, Zhang M, Li GW, Chen J, Liu F, Ren JA, Sang H. The author's reply to comment on 'psoriasis/inflammatory bowel diseases: a time to solve the liaison'. J Eur Acad Dermatol Venereol 2018; 32:e340-e341. [PMID: 29512193 DOI: 10.1111/jdv.14915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- C X Kou
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Y Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Q T Kong
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J Li
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - M Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - G W Li
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210000, China
| | - J Chen
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - F Liu
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J A Ren
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, 210000, China
| | - H Sang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Kou CX, Zhang YY, Li GW, Li J, Kong QT, Chen J, Liu F, Zhang M, Wang FY, Jiang Y, Hao LY, Ren JA, Sang H. Mucocutaneous manifestations of inflammatory bowel disease in central China -a single-centre study. J Eur Acad Dermatol Venereol 2017; 32:e211-e212. [PMID: 29194792 DOI: 10.1111/jdv.14720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- C X Kou
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Y Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - G W Li
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J Li
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Q T Kong
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J Chen
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - F Liu
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - M Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - F Y Wang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Jiang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - L Y Hao
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J A Ren
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - H Sang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Ding P, Ren D, He S, He M, Zhang G, Chen Y, Sang H, Peng Z, Yan W. Sirt1 mediates improvement in cognitive defects induced by focal cerebral ischemia following hyperbaric oxygen preconditioning in rats. Physiol Res 2017; 66:1029-1039. [PMID: 28937253 DOI: 10.33549/physiolres.933544] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Hyperbaric oxygen preconditioning (HBO-PC) has been proposed as a safe and practical approach for neuroprotection in ischemic stroke. However, it is not known whether HPO-PC can improve cognitive deficits induced by cerebral ischemia, and the mechanistic basis for any beneficial effects remains unclear. We addressed this in the present study using rats subjected to middle cerebral artery occlusion (MCAO) as an ischemic stroke model following HBO-PC. Cognitive function and expression of phosphorylated neurofilament heavy polypeptide (pNF-H) and doublecortin (DCX) in the hippocampus were evaluated 14 days after reperfusion and after short interfering RNA-mediated knockdown of sirtuin1 (Sirt1). HBO-PC increased pNF-H and DCX expression and mitigated cognitive deficits in MCAO rats. However, these effects were abolished by Sirt1 knockdown. Our results suggest that HBO-PC can protect the brain from injury caused by ischemia-reperfusion and that Sirt1 is a potential molecular target for therapeutic approaches designed to minimize cognitive deficits caused by cerebral ischemia.
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Affiliation(s)
- P Ding
- Department of Anesthesiology, Gansu Provincial Hospital, Lanzhou, China, Department of Psychiatry, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China. pengzhengwu1446@ 163.com and
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Abstract
RATIONALE Metastasis of cancer cells involves shedding from the primary tumor through various means to distant tissues and organs with continued growth and formation of new metastatic tumors of the same cancer type as the original tumor. The common sites for colon cancer metastases include the pelvis, retroperitoneal lymph nodes, liver, and lungs; Colon cancer metastases to the appendix are rare, as reported in this case. PATIENT CONCERNS AND DIAGNOSES A 45-year-old man was admitted to our department with a 24-hour history of abdominal distension and incomplete obstruction. Colonoscopy showed an elevated lesion in the ascending colon and the pathologic diagnosis was adenocarcinoma. INTERVENTIONS AND OUTCOMES This patient underwent a radical right hemi-colectomy. The post-operative pathologic examination revealed metastatic adenocarcinoma in all layers of the appendix, especially the muscularis mucosae. The diagnosis was adenocarcinoma of the ascending colon (pT4bN2bM0 stage IIIC) with metastatic adenocarcinoma of the appendix. LESSONS An absent right colic artery with lymph node fusion might increase the risk of appendiceal cancer metastasis.
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Yang R, Hu ZL, Kong QT, Li WW, Zhang LL, Du X, Huang SY, Xia XY, Sang H. A known mutation in GJB6 in a large Chinese family with hidrotic ectodermal dysplasia. J Eur Acad Dermatol Venereol 2016; 30:1362-5. [PMID: 27137747 DOI: 10.1111/jdv.13600] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Accepted: 12/16/2015] [Indexed: 12/18/2022]
Affiliation(s)
- R. Yang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - ZL. Hu
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - QT. Kong
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - WW. Li
- Department of Reproduction and Genetics; Institute of Laboratory Medicine; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - LL. Zhang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - X. Du
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - SY. Huang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - XY. Xia
- Department of Reproduction and Genetics; Institute of Laboratory Medicine; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
| | - H. Sang
- Department of Dermatology; Jinling Hospital; School of Medicine; Nanjing University; Nanjing China
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Chen J, Kong QT, Zhang M, Sang H. Recurrent Spitz nevus with multiple satellite lesions on perineum. Indian J Dermatol Venereol Leprol 2015; 81:96. [PMID: 25566925 DOI: 10.4103/0378-6323.148616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
| | | | | | - H Sang
- Jinling Hosp, Dept Dermatology, Nanjing Univ, Sch Med, Nanjing 210002, Peoples R China. Nanjing, China
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Kong QT, Du X, Yang R, Huang SY, Sang H, Liu WD. Chronically Recurrent and Widespread Tinea Corporis Due to Trichophyton rubrum in an Immunocompetent Patient. Mycopathologia 2014; 179:293-7. [DOI: 10.1007/s11046-014-9834-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 11/13/2014] [Indexed: 10/24/2022]
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Li Y, Aggen S, Shi S, Gao J, Li Y, Tao M, Zhang K, Wang X, Gao C, Yang L, Liu Y, Li K, Shi J, Wang G, Liu L, Zhang J, Du B, Jiang G, Shen J, Zhang Z, Liang W, Sun J, Hu J, Liu T, Wang X, Miao G, Meng H, Li Y, Hu C, Li Y, Huang G, Li G, Ha B, Deng H, Mei Q, Zhong H, Gao S, Sang H, Zhang Y, Fang X, Yu F, Yang D, Liu T, Chen Y, Hong X, Wu W, Chen G, Cai M, Song Y, Pan J, Dong J, Pan R, Zhang W, Shen Z, Liu Z, Gu D, Wang X, Liu X, Zhang Q, Flint J, Kendler KS. Subtypes of major depression: latent class analysis in depressed Han Chinese women. Psychol Med 2014; 44:3275-3288. [PMID: 25065911 PMCID: PMC4180813 DOI: 10.1017/s0033291714000749] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Despite substantial research, uncertainty remains about the clinical and etiological heterogeneity of major depression (MD). Can meaningful and valid subtypes be identified and would they be stable cross-culturally? METHOD Symptoms at their lifetime worst depressive episode were assessed at structured psychiatric interview in 6008 women of Han Chinese descent, age ⩾ 30 years, with recurrent DSM-IV MD. Latent class analysis (LCA) was performed in Mplus. RESULTS; Using the nine DSM-IV MD symptomatic A criteria, the 14 disaggregated DSM-IV criteria and all independently assessed depressive symptoms (n = 27), the best LCA model identified respectively three, four and six classes. A severe and non-suicidal class was seen in all solutions, as was a mild/moderate subtype. An atypical class emerged once bidirectional neurovegetative symptoms were included. The non-suicidal class demonstrated low levels of worthlessness/guilt and hopelessness. Patterns of co-morbidity, family history, personality, environmental precipitants, recurrence and body mass index (BMI) differed meaningfully across subtypes, with the atypical class standing out as particularly distinct. CONCLUSIONS MD is a clinically complex syndrome with several detectable subtypes with distinct clinical and demographic correlates. Three subtypes were most consistently identified in our analyses: severe, atypical and non-suicidal. Severe and atypical MD have been identified in multiple prior studies in samples of European ethnicity. Our non-suicidal subtype, with low levels of guilt and hopelessness, may represent a pathoplastic variant reflecting Chinese cultural influences.
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Affiliation(s)
- Y. Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - S. Aggen
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - S. Shi
- Shanghai Mental Health Center, P.R.C
- Huashan Hospital of Fudan University, Shanghai, P.R.C
| | - J. Gao
- Chinese Traditional Hospital of Zhejiang, Hangzhou, Zhejiang, P.R.C
| | - Y. Li
- No.1 Hospital of Zhengzhou University, Zhengzhou, Henan, P.R.C
| | - M. Tao
- Xinhua Hospital of Zhejiang Province, Hangzhou, Zhejiang, P.R.C
| | - K. Zhang
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, P.R.C
| | - X. Wang
- ShengJing Hospital of China Medical University, Heping District, Shenyang, Liaoning, P.R.C
| | - C. Gao
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xian, Shaanxi, P.R.C
| | - L. Yang
- Jilin Brain Hospital, Siping, Jilin, P.R.C
| | - Y. Liu
- The First Hospital of China Medical University, Heping District, Shenyang, Liaoning, P.R.C
| | - K. Li
- Mental Hospital of Jiangxi Province, Nanchang, Jiangxi, P.R.C
| | - J. Shi
- Xian Mental Health Center, New Qujiang District, Xian, Shaanxi, P.R.C
| | - G. Wang
- Beijing Anding Hospital of Capital University of Medical Sciences, Xicheng District, Beijing, P.R.C
| | - L. Liu
- Shandong Mental Health Center, Jinan, Shandong, P.R.C
| | - J. Zhang
- No. 3 Hospital of Sun Yat-sen University, Tianhe District, Guangzhou, Guangdong, P.R.C
| | - B. Du
- Hebei Mental Health Center, Baoding, Hebei, P.R.C
| | - G. Jiang
- Chongqing Mental Health Center, Jiangbei District, Chongqing, P.R.C
| | - J. Shen
- Tianjin Anding Hospital, Hexi District, Tianjin, P.R.C
| | - Z. Zhang
- No. 4 Hospital of Jiangsu University, Zhenjiang, Jiangsu, P.R.C
| | - W. Liang
- Psychiatric Hospital of Henan Province, Xinxiang, Henan, P.R.C
| | - J. Sun
- Nanjing Brain Hospital, Nanjing, Jiangsu, P.R.C
| | - J. Hu
- Harbin Medical University, Nangang District, Haerbin, Heilongjiang, P.R.C
| | - T. Liu
- Shenzhen Kang Ning Hospital, Luohu District, Shenzhen, Guangdong, P.R.C
| | - X. Wang
- First Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R.C
| | - G. Miao
- Guangzhou Brain Hospital (Guangzhou Psychiatric Hospital), Liwan District, Guangzhou, Guangdong, P.R.C
| | - H. Meng
- No. 1 Hospital of Chongqing Medical University, Yuanjiagang, Yuzhong District, Chongqing, P.R.C
| | - Y. Li
- Dalian No. 7 Hospital, Ganjingzi District, Dalian, Liaoning, P.R.C
| | - C. Hu
- No. 3 Hospital of Heilongjiang Province, Beian, Heilongjiang, P.R.C
| | - Y. Li
- Wuhan Mental Health Center, Wuhan, Hubei, P.R.C
| | - G. Huang
- Sichuan Mental Health Center, Mianyang, Sichuan, P.R.C
| | - G. Li
- Mental Health Institute of Jining Medical College, Dai Zhuang, Bei Jiao, Jining, Shandong, P.R.C
| | - B. Ha
- Liaocheng No. 4 Hospital, Liaocheng, Shandong, P.R.C
| | - H. Deng
- Mental Health Center of West China Hospital of Sichuan University, Wuhou District, Chengdu, Sichuan, P.R.C
| | - Q. Mei
- Suzhou Guangji Hospital, Suzhou, Jiangsu, P.R.C
| | - H. Zhong
- Anhui Mental Health Center, Hefei, Anhui, P.R.C
| | - S. Gao
- Ningbo Kang Ning Hospital, Zhenhai District, Ningbo, Zhejiang, P.R.C
| | - H. Sang
- Changchun Mental Hospital, Changchun, Jilin, P.R.C
| | - Y. Zhang
- No. 2 Hospital of Lanzhou University, Lanzhou, Gansu, P.R.C
| | - X. Fang
- Fuzhou Psychiatric Hospital, Cangshan District, Fuzhou, Fujian, P.R.C
| | - F. Yu
- Harbin No. 1 Special Hospital, Haerbin, Heilongjiang, P.R.C
| | - D. Yang
- Jining Psychiatric Hospital, North Dai Zhuang, Rencheng District, Jining, Shandong, P.R.C
| | - T. Liu
- No. 2 Xiangya Hospital of Zhongnan University, Furong District, Changsha, Hunan, P.R.C
| | - Y. Chen
- Xijing Hospital of No. 4 Military Medical University, Xian, Shaanxi, P.R.C
| | - X. Hong
- Mental Health Center of Shantou University, Shantou, Guangdong, P.R.C
| | - W. Wu
- Tongji University Hospital, Shanghai, P.R.C
| | - G. Chen
- Huaian No. 3 Hospital, Huaian, Jiangsu, P.R.C
| | - M. Cai
- Huzhou No. 3 Hospital, Huzhou, Zhejiang, P.R.C
| | - Y. Song
- Mudanjiang Psychiatric Hospital of Heilongjiang Province, Xinglong, Mudanjiang, Heilongjiang, P.R.C
| | - J. Pan
- No. 1 Hospital of Jinan University, Guangzhou, Guangdong, P.R.C
| | - J. Dong
- Qingdao Mental Health Center, Shibei District, Qingdao, Shandong, P.R.C
| | - R. Pan
- Guangxi Longquanshan Hospital, Yufeng District, Liuzhou, P.R.C
| | - W. Zhang
- Daqing No. 3 Hospital of Heilongjiang Province, Ranghulu district, Daqing, Heilongjiang, P.R.C
| | - Z. Shen
- Tangshan No. 5 Hospital, Lunan District, Tangshan, Hebei, P.R.C
| | - Z. Liu
- Anshan Psychiatric Rehabilitation Hospital, Lishan District, Anshan, Liaoning, P.R.C
| | - D. Gu
- Weihai Mental Health Center, ETDZ, Weihai, Shandong, P.R.C
| | - X. Wang
- Renmin Hospital of Wuhan University, Wuchang District, Wuhan, Hubei, P.R.C
| | - X. Liu
- Tianjin First Center Hospital, Xinkai Road, Hedong District, Tianjin, P.R.C
| | - Q. Zhang
- Hainan Anning Hospital, Haikou, Hainan, P.R.C
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. S. Kendler
- Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
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Li Y, Aggen S, Shi S, Gao J, Li Y, Tao M, Zhang K, Wang X, Gao C, Yang L, Liu Y, Li K, Shi J, Wang G, Liu L, Zhang J, Du B, Jiang G, Shen J, Zhang Z, Liang W, Sun J, Hu J, Liu T, Wang X, Miao G, Meng H, Li Y, Hu C, Li Y, Huang G, Li G, Ha B, Deng H, Mei Q, Zhong H, Gao S, Sang H, Zhang Y, Fang X, Yu F, Yang D, Liu T, Chen Y, Hong X, Wu W, Chen G, Cai M, Song Y, Pan J, Dong J, Pan R, Zhang W, Shen Z, Liu Z, Gu D, Wang X, Liu X, Zhang Q, Flint J, Kendler KS. The structure of the symptoms of major depression: exploratory and confirmatory factor analysis in depressed Han Chinese women. Psychol Med 2014; 44:1391-1401. [PMID: 23920138 PMCID: PMC3967839 DOI: 10.1017/s003329171300192x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/20/2013] [Accepted: 07/02/2013] [Indexed: 02/05/2023]
Abstract
BACKGROUND The symptoms of major depression (MD) are clinically diverse. Do they form coherent factors that might clarify the underlying nature of this important psychiatric syndrome? METHOD Symptoms at lifetime worst depressive episode were assessed at structured psychiatric interview in 6008 women of Han Chinese descent, age ⩾30 years with recurrent DSM-IV MD. Exploratory factor analysis (EFA) and confirmatoryfactor analysis (CFA) were performed in Mplus in random split-half samples. RESULTS The preliminary EFA results were consistently supported by the findings from CFA. Analyses of the nine DSM-IV MD symptomatic A criteria revealed two factors loading on: (i) general depressive symptoms; and (ii) guilt/suicidal ideation. Examining 14 disaggregated DSM-IV criteria revealed three factors reflecting: (i) weight/appetite disturbance; (ii) general depressive symptoms; and (iii) sleep disturbance. Using all symptoms (n = 27), we identified five factors that reflected: (i) weight/appetite symptoms; (ii) general retarded depressive symptoms; (iii) atypical vegetative symptoms; (iv) suicidality/hopelessness; and (v) symptoms of agitation and anxiety. CONCLUSIONS MD is a clinically complex syndrome with several underlying correlated symptom dimensions. In addition to a general depressive symptom factor, a complete picture must include factors reflecting typical/atypical vegetative symptoms, cognitive symptoms (hopelessness/suicidal ideation), and an agitated symptom factor characterized by anxiety, guilt, helplessness and irritability. Prior cross-cultural studies, factor analyses of MD in Western populations and empirical findings in this sample showing risk factor profiles similar to those seen in Western populations suggest that our results are likely to be broadly representative of the human depressive syndrome.
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Affiliation(s)
- Y. Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - S. Aggen
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
| | - S. Shi
- Shanghai Mental Health Center, Shanghai, P.R. China (PRC)
- Huashan Hospital of Fudan University, Shanghai, PRC
| | - J. Gao
- Chinese Traditional Hospital of Zhejiang, Hangzhou, Zhejiang, PRC
| | - Y. Li
- No. 1 Hospital of Zhengzhou University, Zhengzhou, Henan, PRC
| | - M. Tao
- Xinhua Hospital of Zhejiang Province, Hangzhou, Zhejiang, PRC
| | - K. Zhang
- No. 1 Hospital of Shanxi Medical University, Taiyuan, Shanxi, PRC
| | - X. Wang
- ShengJing Hospital of China Medical University, Heping District, Shenyang, Liaoning, PRC
| | - C. Gao
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xian, Shaanxi, PRC
| | - L. Yang
- Jilin Brain Hospital, Siping, Jilin, PRC
| | - Y. Liu
- The First Hospital of China Medical University, Heping District, Shenyang, Liaoning, PRC
| | - K. Li
- Mental Hospital of Jiangxi Province, Nanchang, Jiangxi, PRC
| | - J. Shi
- Xian Mental Health Center, New Qujiang District, Xian, Shaanxi, PRC
| | - G. Wang
- Beijing Anding Hospital of Capital University of Medical Sciences, Deshengmen wai, Xicheng District, Beijing, PRC
| | - L. Liu
- Shandong Mental Health Center, Jinan, Shandong, PRC
| | - J. Zhang
- No. 3 Hospital of Sun Yat-sen University, Tianhe District, Guangzhou, Guangdong, PRC
| | - B. Du
- Hebei Mental Health Center, Baoding, Hebei, PRC
| | - G. Jiang
- Chongqing Mental Health Center, Jiangbei District, Chongqing, PRC
| | - J. Shen
- Tianjin Anding Hospital, Hexi District, Tianjin, PRC
| | - Z. Zhang
- No. 4 Hospital of Jiangsu University, Zhenjiang, Jiangsu, PRC
| | - W. Liang
- Psychiatric Hospital of Henan Province, Xinxiang, Henan, PRC
| | - J. Sun
- Nanjing Brain Hospital, Nanjing, Jiangsu, PRC
| | - J. Hu
- Harbin Medical University, Nangang District, Haerbin, Heilongjiang, PRC
| | - T. Liu
- Shenzhen Kang Ning Hospital, Luohu District, Shenzhen, Guangdong, PRC
| | - X. Wang
- First Hospital of Hebei Medical University, Shijiazhuang, Hebei, PRC
| | - G. Miao
- Guangzhou Brain Hospital (Guangzhou Psychiatric Hospital), Liwan District, Guangzhou, Guangdong, PRC
| | - H. Meng
- No. 1 Hospital of Chongqing Medical University, Yuzhong District, Chongqing, PRC
| | - Y. Li
- Dalian No. 7 Hospital, Ganjingzi District, Dalian, Liaoning, PRC
| | - C. Hu
- No. 3 Hospital of Heilongjiang Province, Beian, Heilongjiang, PRC
| | - Y. Li
- Wuhan Mental Health Center, Wuhan, Hubei, PRC
| | - G. Huang
- Sichuan Mental Health Center, Mianyang, Sichuan, PRC
| | - G. Li
- Mental Health Institute of Jining Medical College, Dai Zhuang, Bei Jiao, Jining, Shandong, PRC
| | - B. Ha
- Liaocheng No. 4 Hospital, Liaocheng, Shandong, PRC
| | - H. Deng
- Mental Health Center of West China Hospital of Sichuan University, Wuhou District, Chengdu, Sichuan, PRC
| | - Q. Mei
- Suzhou Guangji Hospital, Suzhou, Jiangsu, PRC
| | - H. Zhong
- Anhui Mental Health Center, Hefei, Anhui, PRC
| | - S. Gao
- Ningbo Kang Ning Hospital, Zhenhai District, Ningbo, Zhejiang, PRC
| | - H. Sang
- Changchun Mental Hospital, Changchun, Jilin, PRC
| | - Y. Zhang
- No. 2 Hospital of Lanzhou University, Lanzhou, Gansu, PRC
| | - X. Fang
- Fuzhou Psychiatric Hospital, Cangshan District, Fuzhou, Fujian, PRC
| | - F. Yu
- Harbin No. 1 Special Hospital, Haerbin, Heilongjiang, PRC
| | - D. Yang
- Jining Psychiatric Hospital, North Dai Zhuang, Rencheng District, Jining, Shandong, PRC
| | - T. Liu
- No. 2 Xiangya Hospital of Zhongnan University, Furong District, Changsha, Hunan, PRC
| | - Y. Chen
- Xijing Hospital of No. 4 Military Medical University, Xian, Shaanxi, PRC
| | - X. Hong
- Mental Health Center of Shantou University, Shantou, Guangdong, PRC
| | - W. Wu
- Tongji University Hospital, Shanghai, PRC
| | - G. Chen
- Huaian No. 3 Hospital, Huaian, Jiangsu, PRC
| | - M. Cai
- Huzhou No. 3 Hospital, Huzhou, Zhejiang, PRC
| | - Y. Song
- Mudanjiang Psychiatric Hospital of Heilongjiang Province, Xinglong, Mudanjiang, Heilongjiang, PRC
| | - J. Pan
- No. 1 Hospital of Jinan University, Guangzhou, Guangdong, PRC
| | - J. Dong
- Qingdao Mental Health Center, Shibei District, Qingdao, Shandong, PRC
| | - R. Pan
- Guangxi Longquanshan Hospital, Yufeng District, Liuzhou, PRC
| | - W. Zhang
- Daqing No. 3 Hospital of Heilongjiang Province, Ranghulu District, Daqing, Heilongjiang, PRC
| | - Z. Shen
- Tangshan No. 5 Hospital, Lunan District, Tangshan, Hebei, PRC
| | - Z. Liu
- Anshan Psychiatric Rehabilitation Hospital, Lishan District, Anshan, Liaoning, PRC
| | - D. Gu
- Weihai Mental Health Center, ETDZ, Weihai, Shandong, PRC
| | - X. Wang
- Renmin Hospital of Wuhan University, Wuchang District, Wuhan, Hubei, PRC
| | - X. Liu
- Tianjin First Center Hospital, Hedong District, Tianjin, PRC
| | - Q. Zhang
- Hainan Anning Hospital, Haikou, Hainan, PRC
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. S. Kendler
- Virginia Institute for Psychiatric and Behavioral Genetics, Department of Psychiatry, Virginia Commonwealth University, Richmond, VA, USA
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Abstract
Spitz nevi are benign melanocytic lesions with many histologic similarities to malignant melanoma. A case of agminated Spitz nevi on a 2-year-old boy's left cheek is reported and 41 other cases of agminated Spitz nevi are reviewed. In this case, two biopsies were performed on two different-appearing lesions and the results of both biopsies showed Spitz nevi.
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Affiliation(s)
- M H Zeng
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Abstract
Acute inhalation exposure to high levels of manganese (Mn) is associated with pulmonary edema and impaired function. The immune-mediated lung epithelium injury of Mn in vivo and in vitro experiments has been well characterized, whereas its apoptotic effect is not well defined. Our results show that human bronchial epithelial (16HBE) cells undergo caspase-9-mediated cell death in response to Mn. Loss of mitochondrial membrane potential (ΔΨm), the formation of reactive oxygen species and release of cytochrome c were regulated during this process. In addition, decreasing c-Myc level and increasing of phosphorylated p53 (Ser 15) and WAF1/p21 were also taken part in Mn-mediated lung toxicity. Proteasome inhibitor MG132 could increase c-Myc protein in abundance. Taking together, our results demonstrate that caspase-9-dependent intrinsic pathway, the downregulation of c-Myc and the upregulation of p53 and phosphorylated p53 might be responsible for Mn-mediated apoptosis in 16HBE cells. Moreover, c-Myc decrease might be due to increased degradation through the ubiquitin-proteasome pathway.
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Affiliation(s)
- L Zhang
- 1Department of Prevention, Tongji University School of Medicine, Shanghai, China
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Sang H, Zheng XE, Zhou WQ, He W, Lv GX, Shen YN, Kong QT, Liu WD. A case of subcutaneous phaeohyphomycosis caused by Cladosporium cladosporioides and its treatment. Mycoses 2011; 55:195-7. [PMID: 21707784 DOI: 10.1111/j.1439-0507.2011.02057.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sang H, Zheng XE, Kong QT, Zhou WQ, He W, Lv GX, Shen YN, Liu WD. A rare complication of ear piercing: a case of subcutaneous phaeohyphomycosis caused byVeronaea botryosain China. Med Mycol 2011; 49:296-302. [DOI: 10.3109/13693786.2010.513340] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Lyall J, Irvine RM, Sherman A, McKinley TJ, Nunez A, Purdie A, Outtrim L, Brown IH, Rolleston-Smith G, Sang H, Tiley L. Suppression of Avian Influenza Transmission in Genetically Modified Chickens. Science 2011; 331:223-6. [DOI: 10.1126/science.1198020] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Sang H, Sun M, Zhou H. e0589 Effects of initial therapy for hypertension with combination therapy regimen and impact on renal function. Heart 2010. [DOI: 10.1136/hrt.2010.208967.589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Sang H, Sun M, Zhou H. e0590 The one-year pharmacoeconomic evaluation of hypertension's treatment by low dose amlodipine plus telmisartan or amlodipine plus amiroride regimen. Heart 2010. [DOI: 10.1136/hrt.2010.208967.590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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35
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Sang H, Sun M, Zhou H. e0588 The long-term pharmacoeconomic economic evaluation of two initial combination therapy regimens for hypertension using Markov model. Heart 2010. [DOI: 10.1136/hrt.2010.208967.588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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36
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Qian H, Zhao Y, Peng Y, Han C, Li S, Huo N, Ding Y, Duan Y, Xiong L, Sang H. Activation of cannabinoid receptor CB2 regulates osteogenic and osteoclastogenic gene expression in human periodontal ligament cells. J Periodontal Res 2010; 45:504-11. [DOI: 10.1111/j.1600-0765.2009.01265.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Qin S, Sang H. Abstract: P1194 INCREASED PHOSPHOLIPID TRANSFER PROTEIN ACTIVITY ASSOCIATED WITH THE DYSFUNCTIONAL HIGH DENSITY LIPOPROTEIN IN TYPE 2 DIABETIC SUBJECTS WITH OR WITHOUT HIGH LEVEL OF TRIGLYCERIDE RICH LIPOPROTEINS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)71221-8] [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: 11/30/2022]
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Latimer AM, Banerjee S, Sang H, Mosher ES, Silander JA. Hierarchical models facilitate spatial analysis of large data sets: a case study on invasive plant species in the northeastern United States. Ecol Lett 2009; 12:144-54. [PMID: 19143826 DOI: 10.1111/j.1461-0248.2008.01270.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Many critical ecological issues require the analysis of large spatial point data sets - for example, modelling species distributions, abundance and spread from survey data. But modelling spatial relationships, especially in large point data sets, presents major computational challenges. We use a novel Bayesian hierarchical statistical approach, 'spatial predictive process' modelling, to predict the distribution of a major invasive plant species, Celastrus orbiculatus, in the northeastern USA. The model runs orders of magnitude faster than traditional geostatistical models on a large data set of c. 4000 points, and performs better than generalized linear models, generalized additive models and geographically weighted regression in cross-validation. We also use this approach to model simultaneously the distributions of a set of four major invasive species in a spatially explicit multivariate model. This multispecies analysis demonstrates that some pairs of species exhibit negative residual spatial covariation, suggesting potential competitive interaction or divergent responses to unmeasured factors.
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Affiliation(s)
- A M Latimer
- Department of Plant Sciences, University of California, Davis, CA 95616, USA.
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Yuan H, Huang Z, Yang G, Lv H, Sang H, Yao Y. Effects of Polymorphism of the β1 Adrenoreceptor and CYP2D6 on the Therapeutic Effects of Metoprolol. J Int Med Res 2008; 36:1354-62. [PMID: 19094446 DOI: 10.1177/147323000803600624] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Metoprolol is a lipophilic β1 selective adrenergic receptor antagonist used in antihypertensive therapy. It is metabolized by the protein product of the cytochrome P450 2D6 ( CYP2D6) gene. Few studies have been performed on the association between the β1 adrenoreceptor, CYP2D6 polymorphism and blood pressure. The one reported here is a prospective, observational, clinical study in Chinese Han hypertensive patients on the combined influences of CYP2D6 and β1 adrenoreceptor polymorphisms on the therapeutic effects of metoprolol in 300 out-patients with essential hypertension. The same dose of metoprolol achieved different therapeutic effects in patients with different CYP2D6 and β1 adrenoreceptor polymorphisms. Additionally, different doses of metoprolol could achieve the same therapeutic effects in patients with different CYP2D6 and β1 adrenoreceptor polymorphisms. Knowledge of the combination of CYP2D6 and β1 adrenoreceptor polymorphisms may be used to guide antihypertensive therapy using β1 adrenoreceptor antagonists.
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Affiliation(s)
- H Yuan
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Z Huang
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - G Yang
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - H Lv
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - H Sang
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Y Yao
- Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China
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Park S, Jeong Y, Yang C, Kim H, Kim J, Sang H, Youn H. P24 X-ray microscopic imaging of female breast tissues by synchrotron radiation. Breast 2007. [DOI: 10.1016/s0960-9776(07)70089-9] [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: 11/17/2022] Open
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41
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Wan C, La Y, Zhu H, Yang Y, Jiang L, Chen Y, Feng G, Li H, Sang H, Hao X, Zhang G, He L. Abnormal changes of plasma acute phase proteins in schizophrenia and the relation between schizophrenia and haptoglobin (Hp) gene. Amino Acids 2006; 32:101-8. [PMID: 16897611 DOI: 10.1007/s00726-005-0292-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2005] [Accepted: 11/07/2005] [Indexed: 10/24/2022]
Abstract
In this study we focused on detecting schizophrenia related changes of plasma proteins using proteomic technology and examining the relation between schizophrenia and haptoglobin (Hp) genotype. We investigated plasma proteins from schizophrenic subjects (n = 42) and healthy controls (n = 46) by two-dimensional gel electrophoresis (2-DE) in combination with mass spectrometry. To further reveal the genetic relationship between acute phase proteins (APPs) and schizophrenia disease, we tested Hp alpha1/Hp alpha2 (Hp 1/2) polymorphism and two single nucleotide polymorphisms (SNPs) of Hp, rs2070937 and rs5473, for associations with schizophrenia in the Chinese Han population. With the relatively high number of samples for 2-DE work, we found that four proteins in the family of positive APPs were all up-regulated in patients. In genetic association study, we found significant associations existing between schizophrenia and Hp polymorphisms, Hp 1/2 and rs2070937 variants. Schizophrenia is accompanied by both an altered expression of Hp protein and a different genotype distribution of Hp gene, demonstrating that Hp is associated with schizophrenia. The results from proteomic and genomic aspects both indicate that acute phase reaction is likely to be an aetiological agent in the pathophysiology of schizophrenia, but not just an accompanying symptom. The positive APPs are schizophrenic related proteins, with the highly concordant results on four positive APPs.
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Affiliation(s)
- C Wan
- Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, China
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42
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He G, Liu X, Qin W, Chen Q, Wang X, Yang Y, Zhou J, Xu Y, Gu N, Feng G, Sang H, Wang P, He L. MPZL1/PZR, a novel candidate predisposing schizophrenia in Han Chinese. Mol Psychiatry 2006; 11:748-51. [PMID: 16702974 DOI: 10.1038/sj.mp.4001841] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The MPZL1/PZR gene has been mapped to 1q23.3, located in close proximity to a recognized schizophrenia susceptibility locus. Recently, the MPZL1/PZR gene has been found to be significantly upregulated in schizophrenia brain tissue and to play an important role in cell signaling, thus indicating that MPZL1/PZR could be a potential schizophrenia marker. To test this hypothesis, we selected three single nucleotide polymorphisms (SNPs) for genotyping in 523 Han Chinese trios. We found that two individual SNPs were significant at the Bonferroni's corrected significance level P<0.017: rs3767444 (chi2=6.299, P=0.0121) and rs2051656 (chi2=9.856, P=0.0017). Haplotype transmission/disequilibrium tests revealed a significant association with the disease (global P-value=1.064 x 10(-6)), but no specific transmission distortions. Thus, we propose that the MPZL1/PZR gene may be important in the predisposition to schizophrenia among Han Chinese.
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Affiliation(s)
- G He
- Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, PR China
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43
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Chen LL, Prieto VG, Sabripour M, Wu EF, Raymond AK, Sang H, Frazier ML. Loss of heterozygosity with acquisition of homozygous KIT-activating mutation promotes gastrointestinal stromal tumor progression. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.9530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9530 Background: Gastrointestinal stromal tumors (GISTs) originate from interstitial cells of Cajal and represent the most common mesenchymal tumor of GI tract. The activating mutations of KIT and platelet-derived growth factor receptor α (PDGFRA) have been demonstrated in 88% and 6% of GISTs respectively. Multiple genetic events are involved in tumor initiation and progression. Activation of an oncogene can result from a single hit of gain-of-function mutation, but two hits leading to loss of heterozygosity (LOH) are necessary for inactivation of a tumor suppressor gene for the initiation of neoplasia. Little is known about the significance and mechanism of LOH of oncogenes in tumor progression. The LOH of activating-oncogenes is not infrequent, i.e. in more than 8% of GIST. These GIST clones with LOH prevail and dominate, strongly suggestive of proliferative and metastatic advantages. However, the significance and mechanisms of LOH acquiring homozygous activating-oncogene mutation remain unknown. Methods: Genomic DNA and cDNA sequencing analysis of KIT, single-nucleotide polymorphisms (SNPs), immunohistochemistry of GISTs clones, and 3D structural analysis of the mutated KIT. Results: Real-time genetic studies in GIST show initial development of overexpression of KIT without mutation, to coexistence of various heterozygous-activating mutations; eventually, one clone dominates. Comparisons within the same patient show that clonal evolution from heterozygous to LOH acquiring homozygous (diploid) KIT-activating mutation results in dominance of the latter, with augmented KIT signaling and doubling of mitotic figures. Using SNPs for allelotyping, we found that mitotic nondisjunction, rather than mitotic recombination, represents an important mechanism of the second hit. Conclusion: GIST clones with LOH acquiring homozygous KIT-activating mutation gain a selective advantage over the heterozygous counterpart. Mitotic nondisjunction, in addition to the commonly recognized mitotic recombination, is an important and perhaps the primary mechanism of LOH acquiring homozygous KIT-activating mutation during GIST progression. No significant financial relationships to disclose.
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Affiliation(s)
- L. L. Chen
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - V. G. Prieto
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - M. Sabripour
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - E. F. Wu
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - A. K. Raymond
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - H. Sang
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
| | - M. L. Frazier
- M. D. Anderson Cancer Center, Houston, TX; University of Alabama at Birmingham, Birmingham, AL; Xijing Hospital, Fourth Medical University, Xi’an City, China
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Tang RQ, Zhao XZ, Shi YY, Tang W, Gu NF, Feng GY, Xing YL, Zhu SM, Sang H, Liang PJ, He L. Family-based association study of Epsin 4 and Schizophrenia. Mol Psychiatry 2006; 11:395-9. [PMID: 16402136 DOI: 10.1038/sj.mp.4001780] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Recently, Pimm et al. identified Epsin 4 on chromosome 5q33 as a susceptibility gene for schizophrenia in the British population, based on linkage and association evidence. In Pimm's case-control study, both the single polymorphisms and the individual haplotypes at the 5' end of the gene showed genetic association with schizophrenia. Here, we report the first study evaluating the relevance of Epsin 4 and schizophrenia outside the British population. Markers showing positive results in the original work as well as two additional polymorphisms were genotyped in 308 Han Chinese family trios. Transmission disequilibrium analysis was used to test for association of single-locus markers and multi-locus haplotypes with schizophrenia. Although no individual marker was significant at the P=0.05 level, the haplotypes detected in our samples, different from those previously reported, showed strong evidence of association (most significant global P=0.0021). Our results indicate the presence of a locus near the 5' end of Epsin 4 conferring susceptibility to the disease and provide further support for Epsin 4 as an important potential contributor to genetic risk in schizophrenia.
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Affiliation(s)
- R Q Tang
- Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, China
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45
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Zhao X, Shi Y, Tang J, Tang R, Yu L, Gu N, Feng G, Zhu S, Liu H, Xing Y, Zhao S, Sang H, Guan Y, St Clair D, He L. A case control and family based association study of the neuregulin1 gene and schizophrenia. J Med Genet 2004; 41:31-4. [PMID: 14729827 PMCID: PMC1757254 DOI: 10.1136/jmg.2003.014977] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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46
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Abstract
Cervical lymphadenitis caused by Candida albicans developed in an 8-year-old Chinese child. There was no evidence of disseminated infection. The infection apparently confined to a lymph node was interpreted as a stage of fungal invasion. The child showed lymphopenia with a proportionate decrease in T-helper and T-suppressor cells. The child was successfully treated intravenously with fluconazole.
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Affiliation(s)
- H Sang
- Department of Dermatology, Jinling Hospital, Medical College of Nanjing University, Nanjing, China.
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47
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Sang H, Lu Z, Li Y, Ru B, Wang W, Chen J. Phosphorylation of tau by glycogen synthase kinase 3beta in intact mammalian cells influences the stability of microtubules. Neurosci Lett 2001; 312:141-4. [PMID: 11602330 DOI: 10.1016/s0304-3940(01)02206-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Tau is a neuronal microtubule-associated protein found predominantly in axons. Hyperphosphorylation of tau reduces the stability of microtubules, which may be a pathogenic mechanism in Alzheimer's disease. To understand the different effects between tau and glycogen synthase kinase 3beta (GSK-3beta) phosphorylated tau on the organization and stability of microtubules, we performed transfection studies on 3T3 cells using EGFP-tau (Enhanced Green Fluorescence Protein-tau) and GSK-3beta to quantify the stability of microtubules. Laser confocal microscope observation revealed that thick and thin microtubule bundles could be induced by tau and GSK-3beta phosphorylated tau. The bundles appeared either to be relatively straight or to form a ring around the circumference of the cell. Both the thick and thin microtubule bundles were resistant to colchicine-induced dissociation, with thick bundles more resistant than thin bundles. The bundles induced by GSK-3beta phosphorylated tau were sensitive to colchicine, and could be reversed by the addition of LiCl, an inhibitor of GSK-3beta.
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Affiliation(s)
- H Sang
- Department of Cell Biology and Genetics, College of Life Science, Peking University, Beijing 100871, China
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Abstract
The guanine nucleotide-binding regulatory protein alpha-subunit, Galpha(16), is primarily expressed in hemopoietic cells, and interacts with a large number of seven-membrane span receptors including chemoattractant receptors. We investigated the biological functions resulting from Galpha(16) coupling of chemoattractant receptors in a transfected cell model system. HeLa cells expressing a kappaB-driven luciferase reporter, Galpha(16), and the formyl peptide receptor responded to fMLP with a approximately 7- to 10-fold increase in luciferase activity. This response was accompanied by phosphorylation of IkappaBalpha and elevation of nuclear kappaB-DNA binding activity, indicating activation of NF-kappaB. In contrast to Galpha(16), expression of Galpha(q), Galpha(13), and Galpha(i2) resulted in a marginal increase in kappaB luciferase activity. A GTPase-deficient, constitutively active Galpha(16) mutant (Q212L) could replace agonist stimulation for activation of NF-kappaB. Furthermore, expression of Galpha(16) (Q212L) markedly enhanced TNF-alpha-induced kappaB reporter activity. The Galpha(16)-mediated NF-kappaB activation was paralleled by an increase in phospholipase C-beta activity, and was blocked by pharmacological inhibitors of protein kinase C (PKC) and by buffering of intracellular Ca(2+). The involvement of a conventional PKC isoform was confirmed by the finding that expression of PKCalpha enhanced the effect of Galpha(16), and a dominant negative PKCalpha partially blocked Galpha(16)-mediated NF-kappaB activation. In addition to formyl peptide receptor, Galpha(16) also enhanced NF-kappaB activation by the C5a and C3a receptors, and by CXC chemokine receptor 2 and CCR8. These results suggest a potential role of Galpha(16) in transcriptional regulation downstream of chemoattractant receptors.
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MESH Headings
- Active Transport, Cell Nucleus/genetics
- Amino Acid Substitution/genetics
- Cell Nucleus/genetics
- Cell Nucleus/metabolism
- Enzyme Activation/genetics
- GTP-Binding Protein alpha Subunits, Gq-G11
- Genes, Reporter
- Glutamine/genetics
- HeLa Cells
- Heterotrimeric GTP-Binding Proteins/biosynthesis
- Heterotrimeric GTP-Binding Proteins/genetics
- Heterotrimeric GTP-Binding Proteins/physiology
- Humans
- Isoenzymes/metabolism
- Isoenzymes/physiology
- Leucine/genetics
- Luciferases/genetics
- NF-kappa B/metabolism
- Phospholipase C beta
- Receptors, Chemokine/biosynthesis
- Receptors, Chemokine/genetics
- Receptors, Chemokine/metabolism
- Receptors, Formyl Peptide
- Receptors, Immunologic/biosynthesis
- Receptors, Immunologic/genetics
- Receptors, Peptide/biosynthesis
- Receptors, Peptide/genetics
- Signal Transduction/genetics
- Trans-Activators/genetics
- Trans-Activators/physiology
- Transfection/methods
- Type C Phospholipases/metabolism
- Type C Phospholipases/physiology
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Affiliation(s)
- M Yang
- Department of Pharmacology, College of Medicine, University of Illinois, 8356 South Walcott Avenue, Chicago, IL 60612, USA
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Rodriguez M, Roos RP, McGavern D, Zoecklein L, Pavelko K, Sang H, Lin X. The CD4-mediated immune response is critical in determining the outcome of infection using Theiler's viruses with VP1 capsid protein point mutations. Virology 2000; 275:9-19. [PMID: 11017783 DOI: 10.1006/viro.2000.0493] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Daniel's strain of Theiler's virus (DA) induces a chronic demyelinating disease in the central nervous system (CNS) of susceptible SJL mice, which serves as an excellent model of multiple sclerosis. We previously demonstrated that point mutations near a putative virus receptor-binding site [VP1 99 (Gly to Ser) or 100 (Gly to Asp)] totally attenuate the ability of DA to persist and induce demyelination in SJL mice. The current studies demonstrate that class II-restricted CD4(+) T cells play a major role in clearing VP1 mutant DA viruses from the CNS to prevent demyelination. Infection of SJL CD4((-/-)) mice with DA-VP1-99(Ser) or DA-VP1-100(Asp) resulted in virus persistence and prominent demyelination in the spinal cord. In contrast, infection of SJL CD8((-/-)) mice with DA-VP1-99(Ser) or DA-VP1-100 did not result in virus persistence or demyelination. In addition, no virus-specific cytotoxicity was observed in CNS-infiltrating lymphocytes following infection of SJL mice with VP1 mutant viruses. The mutant DA-VP1-99(Ser) and DA-VP1(100) viruses were in fact neurovirulent when compared to the wild-type DA virus, as they induced an overwhelming encephalitis and early lethality (2 to 4 days postinfection) in mice deficient in the IFN-alpha/beta receptor. Therefore, the nondemyelinating phenotype observed with DA-VP1-99(Ser) and DA-VP1-100(Asp) viruses is dependent in part on the CD4-mediated host immune response.
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MESH Headings
- Amino Acid Substitution/genetics
- Animals
- Antibodies, Viral/immunology
- CD4 Antigens/genetics
- CD4 Antigens/immunology
- CD4-Positive T-Lymphocytes/immunology
- CD8 Antigens/genetics
- CD8 Antigens/immunology
- CD8-Positive T-Lymphocytes/immunology
- Capsid/genetics
- Capsid/metabolism
- Capsid Proteins
- Cardiovirus Infections/immunology
- Cardiovirus Infections/pathology
- Cardiovirus Infections/virology
- Cell Line
- Central Nervous System/immunology
- Central Nervous System/pathology
- Central Nervous System/virology
- Cytotoxicity, Immunologic
- Disease Models, Animal
- Female
- Histocompatibility Antigens Class II/immunology
- In Situ Hybridization
- Mice
- Mice, Inbred Strains
- Mice, Knockout
- Multiple Sclerosis/immunology
- Multiple Sclerosis/pathology
- Multiple Sclerosis/virology
- Neutralization Tests
- Point Mutation/genetics
- RNA, Viral/analysis
- RNA, Viral/genetics
- Receptor, Interferon alpha-beta
- Receptors, Interferon/genetics
- Receptors, Interferon/physiology
- Theilovirus/genetics
- Theilovirus/immunology
- Theilovirus/pathogenicity
- Theilovirus/physiology
- Virulence
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Affiliation(s)
- M Rodriguez
- Department of Immunology, Mayo Clinic, Rochester, Minnesota 55905, USA.
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50
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Mather C, Sherman A, Mitchell R, Sang H, Li Y, May L, Love J, Gribbin C, Perry M. From zygote to chick ex vivo : A three-phase embryo culture system for gene manipulation in chickens. Br Poult Sci 2000. [DOI: 10.1080/00071660050148651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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