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Pan W, Chen H, Ni C, Zong G, Yuan C, Yang M. Sex-Specific Associations of Dietary Iron Intake with Brain Iron Deposition on Imaging and Incident Dementia: A Prospective Cohort Study. J Nutr Health Aging 2022; 26:954-961. [PMID: 36259584 DOI: 10.1007/s12603-022-1852-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVES The study aimed to evaluate the association of dietary iron intake with incident dementia and brain iron deposition. DESIGN/SETTING/PARTICIPANTS We included dementia-free participants from the UK Biobank who completed at least one 24-hour dietary recall at study baseline (2009-2012) and were followed up to 2021. Incident dementia was determined through linkage to medical records and death registries. Brain MRI was conducted in a subgroup of participants since 2014, with T2* measurements being used as indicators of brain iron deposition. MEASUREMENTS Cox proportional hazard models were used to assess the associations of high (top quintile) and low (bottom quintile) versus medium (quintile 2 to 4) level of dietary iron intake with incident dementia, respectively. Linear regression was applied to assess the relations between dietary iron intake and brain T2* measurements. RESULTS During follow-up (mean = 9.5 years), a total of 1,454 participants (650 women and 804 men) developed dementia among 191,694 participants (55.0% female; mean age, 56.2 years). When adjusted for sociodemographic, lifestyle, and other dietary factors, participants with low dietary iron intake (< 10.05 mg/day) had a significantly higher dementia risk (hazard ratio [HR], 1.50, 95% confidence interval [CI], 1.19-1.89), while the relation for high intake (> 16.92 mg/day) was non-significant (HR, 1.16, 95% CI, 0.92-1.46). A significant gender difference (P-interaction < 0.001) was observed, with a U-shaped association in male participants (HR for low vs. medium, 1.56, 95% CI, 1.14-2.13; HR for high vs. medium, 1.39, 95% CI, 1.03 - 1.88; P-nonlinearity < 0.001) and no significant association in females, regardless of their menopause status. In general, dietary iron intake was not related to T2* measurements of iron deposition in most brain regions. CONCLUSION Our findings suggested a U-shape relationship between dietary iron intake and risk of dementia among males, but not females.
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Affiliation(s)
- W Pan
- Min Yang, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 13516852440, ; Changzheng Yuan, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 17326860291, E-mail:
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Guo Y, Zhang H, Liu Q, Wei F, Tang J, Li P, Han X, Zou X, Xu G, Xu Z, Zong W, Ran Q, Xiao F, Mu Z, Mao X, Ran N, Cheng R, Li M, Li C, Luo Y, Meng C, Zhang X, Xu H, Li J, Tang P, Xiang J, Shen C, Niu H, Li H, Shen J, Ni C, Zhang J, Wang H, Ma L, Bieber T, Yao Z. Phenotypic analysis of atopic dermatitis in children aged 1-12 months: elaboration of novel diagnostic criteria for infants in China and estimation of prevalence. J Eur Acad Dermatol Venereol 2019; 33:1569-1576. [PMID: 30989708 DOI: 10.1111/jdv.15618] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 03/01/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Atopic dermatitis (AD) is the most common skin disorder in infancy. However, the diagnosis and definite significance of infantile AD remains a debated issue. OBJECTIVE To analyse the phenotypes of AD in infancy, to establish diagnostic criteria and to estimate the prevalence of this condition in China. METHODS This is a multicentric study, in which 12 locations were chosen from different metropolitan areas of China. Following careful and complete history-taking and skin examination, the definite diagnosis of AD was made and the severity based on the SCORAD index was determined by local experienced dermatologists. Based on the detailed phenotyping, the major and representative clinical features of infantile AD were selected to establish the diagnostic criteria and evaluate their diagnostic efficacy. RESULTS A total of 5967 infants were included in this study. The overall point prevalence of AD was 30.48%. The infantile AD developed as early as at the second month of life, and its incidence peaked in the third month of life at 40.81%. The proportion of mild, moderate and severe AD was 67.40%, 30.57% and 2.03%, respectively. The most commonly seen manifestations in the infantile AD were facial dermatitis (72.07%), xerosis (42.72%) and scalp dermatitis (27.93%). We established the novel diagnostic criteria of infants, which included: (i) onset after 2 weeks of birth; (ii) pruritus and/or irritability and sleeplessness comparable with lesions; and (iii) all two items above with one of the following items can reach a diagnosis of AD: (i) eczematous lesions distributed on cheeks and/or scalp and/or extensor limbs, and (ii) eczematous lesions on any other parts of body accompanied by xerosis. CONCLUSIONS In China, the prevalence of AD in infancy is 30.48% according to clinical diagnosis of dermatologists. The novel Chinese diagnostic criteria for AD in infants show a higher sensitivity and comparable specificity.
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Affiliation(s)
- Y Guo
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - H Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Q Liu
- Department of Dermatology, Shanxi Children's Hospital, Taiyuan, Shanxi, China
| | - F Wei
- Department of Dermatology, Dalian Children's Hospital, Dalian, Liaoning, China
| | - J Tang
- Department of Dermatology, Hunan Children's Hospital, Changsha, Hunan, China
| | - P Li
- Department of Dermatology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - X Han
- Department of Dermatology, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - X Zou
- Department of Dermatology, Hubei Maternity and Child Health Hospital, Wuhan, Hubei, China
| | - G Xu
- Department of Community Health and Family Medicine, School of Public Health, Shanghai Jiaotong University, Shanghai, China
| | - Z Xu
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - W Zong
- Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, Jiangsu, China
| | - Q Ran
- Department of Dermatology, Chengdu Women's and Children's Central Hospital, Chengdu, Sichuan, China
| | - F Xiao
- Institute of Dermatology and Department of Dermatology, No.1 Hospital, Anhui Medical University, Hefei, Anhui, China
| | - Z Mu
- Department of Dermatology, Shengjing Hospital, China Medical University, Shenyang, Liaoning, China
| | - X Mao
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
| | - N Ran
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Luo
- Department of Dermatology, Hunan Children's Hospital, Changsha, Hunan, China
| | - C Meng
- Department of Dermatology, Hubei Maternity and Child Health Hospital, Wuhan, Hubei, China
| | - X Zhang
- Department of Dermatology, Shanxi Children's Hospital, Taiyuan, Shanxi, China
| | - H Xu
- Department of Dermatology, Chengdu Women's and Children's Central Hospital, Chengdu, Sichuan, China
| | - J Li
- Department of Dermatology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - P Tang
- Department of Dermatology, Shenzhen Children's Hospital, Shenzhen, Guangdong, China
| | - J Xiang
- Department of Pediatric Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - C Shen
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - H Niu
- Department of Dermatology, Dalian Children's Hospital, Dalian, Liaoning, China
| | - H Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Shen
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - H Wang
- Department of Pediatric Dermatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - L Ma
- Department of Dermatology, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - T Bieber
- Department of Dermatology and Allergy, University of Bonn, Bonn, Germany
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Institute of Dermatology, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Li P, Zhang F, Weng Q, Zhao L, Zhou Y, Li Y, Li Q, Ni C, Yang X. 4:10 PM Abstract No. 50 Intratumoral radiofrequency hyperthermia-enhanced herpes simplex virus thymidine kinase (HSV-TK) gene therapy of orthotopic lung cancer through the augmentation of apoptosis and heat shock protein (HSP70) expression pathway. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Xu S, Ni C, Chen L, Zhu H, Zhong B, Teng G. 4:21 PM Abstract No. 170 Prognostic predictors for the combination therapy of percutaneous catheter drainage and antibiotics in pyogenic liver abscess patients. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.791] [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: 11/15/2022] Open
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Zhong B, Ni C, Chen S, Teng G. 3:45 PM Abstract No. 38 Stratification and prognosis for portal vein invaded hepatocellular carcinoma treated with transarterial chemoembolization monotherapy. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Shen J, Wang W, Zhu X, Ni C. 3:36 PM Abstract No. 275 ■ FEATURED ABSTRACT EpCAM-positive circulating tumor cells independently predict poor outcomes of transcatheter arterial chemoembolization in patients with unresectable hepatocellular carcinoma. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Jiang J, He M, Hu X, Ni C, Yang L. Deep sequencing reveals the molecular pathology characteristics between primary uterine leiomyoma and pulmonary benign metastasizing leiomyoma. Clin Transl Oncol 2018; 20:1080-1086. [PMID: 29484624 DOI: 10.1007/s12094-018-1847-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 02/09/2018] [Accepted: 02/15/2018] [Indexed: 12/31/2022]
Abstract
PURPOSE Pulmonary benign metastasizing leiomyoma (PBML), a rare condition of smooth muscle tumor, originates from women with a history of uterine leiomyoma (LM). Numerous genetic studies of uterine LM have been reported; however, there are few cytogenetic and molecular descriptions of PBML. Therefore, molecular subtyping is necessary to understand the pathogenesis of metastasizing sites. METHODS Driver gene exon-capture sequencing was performed on one patient's peripheral blood, paraffin samples from primary uterine LM, and lung metastasizing leiomyoma 8 years later. RESULTS The results showed that the same missense mutations of BLMH, LRP2, MED12, SMAD2, and UGT1A8 were concurrently mutated in the primary uterine LM and the PBML. Moreover, a splice mutation of PTEN (c.492+1G>A) was uniquely identified in the lung metastasis of the patient. CONCLUSION This study indicates that the metastatic lung lesions were derived from the same malignant cell clone of uterine LMs and later acquired the novel driver mutations in the evolution of the tumor. In addition, driver gene sequencing can discriminate somatic driver mutations as biological indicators of potential malignant leiomyoma and can identify pathogenic variation driver mutations, which could be used for individualized therapy.
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Affiliation(s)
- J Jiang
- Department of Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310000, Zhejiang, People's Republic of China
| | - M He
- Department of Medical Oncology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - X Hu
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Shang Tang Road 158, Hangzhou, 310014, Zhejiang, People's Republic of China.
| | - C Ni
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Shang Tang Road 158, Hangzhou, 310014, Zhejiang, People's Republic of China. .,Department of Thyroid and Breast Surgery, Zhejiang Provincial People's Hospital, Hangzhou, 310014, Zhejiang, People's Republic of China.
| | - L Yang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Shang Tang Road 158, Hangzhou, 310014, Zhejiang, People's Republic of China.
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Zhang J, Wang Y, Cheng R, Ni C, Liang J, Li M, Yao Z. Novel MBTPS2 missense mutation causes a keratosis follicularis spinulosa decalvans phenotype: mutation update and review of the literature. Clin Exp Dermatol 2018; 41:757-60. [PMID: 27663151 DOI: 10.1111/ced.12889] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2015] [Indexed: 11/30/2022]
Abstract
Keratosis follicularis spinulosa decalvans (KFSD) is an X-linked condition characterized by keratotic follicular papules and progressive alopecia, which is caused by mutations in the MBTPS2 gene. We carried out a genetic study on a child who was suspected clinically to have KFSD. Sanger sequencing was performed to detect mutations in the entire coding region of MBTPS2. A novel missense mutation (c.599C>T) was identified in the patient, confirming a diagnosis of KFSD. We reviewed related cases with MBTPS2 mutations for evidence of genotype-phenotype correlations.
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Affiliation(s)
- J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Y Wang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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Yang L, Lv Z, Xia W, Zhang W, Xin Y, Yuan H, Chen Y, Hu X, Lv Y, Xu Q, Weng X, Ni C. The effect of aspirin on circulating tumor cells in metastatic colorectal and breast cancer patients: a phase II trial study. Clin Transl Oncol 2017; 20:912-921. [PMID: 29243075 DOI: 10.1007/s12094-017-1806-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 11/09/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE Aspirin could reduce the risk of cancer metastasis. Circulating tumor cells (CTCs) are a key factor of cancer metastasis, but no evidence has revealed how aspirin affects CTCs and its epithelial-mesenchymal transition (EMT). Here, we conducted a clinical trial to investigate how aspirin affects CTCs in metastatic colorectal cancer (MCC) and breast cancer patients (MBC). METHODS The trial is retrospective registered at clinicaltrials.gov (NCT02602938). The eligible patients are given 100 mg aspirin q.d. for 8 weeks, and CTCs are evaluated at baseline, 4 and 8 weeks for absolute number, phenotype (epithelial type, E+, mesenchymal type, M+, and biophenotypic type, B+), and vimentin expression. RESULTS Data on 21 MCC and 19 MBC patients are analyzed, and it revealed that the CTC numbers decreased with aspirin treatment in MCC (p < 0.001) but not MBC (p = 0.0532); besides, ratio of E+ CTCs increased (p = 0.037) and M+ CTCs decreased at 2 months in MCC (p = 0.013), but neither the ratio of E+ or M+ CTCs changes significantly in MBC; vimentin expression of M+ CTCs is higher than E+ and B+ CTCs either in MBC or MCC patients at baseline (p < 0.01); and aspirin suppresses the vimentin expression in M+ (p = 0.002)and B+ (p = 0.006) CTCs of MCC and M+ CTCs of MBC (p = 0.004); besides it find vimentin expression in B+ (p = 0.004) or M+ (p < 0.001), CTCs are markedly decreased in patients with total CTC numbers declined. CONCLUSION Aspirin could decrease CTCs numbers and block EMT transition in MCC patients and part of MBC patients.
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Affiliation(s)
- L Yang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou Medicine College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Z Lv
- Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - W Xia
- Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - W Zhang
- Department of Endocrinology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang, 310014, People's Republic of China
| | - Y Xin
- Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - H Yuan
- Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Y Chen
- Department of Oncology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - X Hu
- Department of Anus and Intestine Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - Y Lv
- SurExam Bio-Tech, Guangzhou Technology Innovation Base, Science City, Guangzhou, People's Republic of China
| | - Q Xu
- Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China
| | - X Weng
- Department of General Surgery, Central Hospital of Haining, Zhejiang, 310000, People's Republic of China
| | - C Ni
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, Key Laboratory of Gastroenterology of Zhejiang Province, Zhejiang Provincial People's Hospital, Hangzhou Medicine College, Hangzhou, 310014, Zhejiang, People's Republic of China. .,Department of Breast and Thyroid Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, 310014, Zhejiang, People's Republic of China.
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Xie Y, Zhang Y, Qin W, Lu S, Ni C, Zhang Q. White Matter Microstructural Abnormalities in Type 2 Diabetes Mellitus: A Diffusional Kurtosis Imaging Analysis. AJNR Am J Neuroradiol 2017; 38:617-625. [PMID: 27979796 DOI: 10.3174/ajnr.a5042] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 10/18/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND AND PURPOSE Increasing DTI studies have demonstrated that white matter microstructural abnormalities play an important role in type 2 diabetes mellitus-related cognitive impairment. In this study, the diffusional kurtosis imaging method was used to investigate WM microstructural alterations in patients with type 2 diabetes mellitus and to detect associations between diffusional kurtosis imaging metrics and clinical/cognitive measurements. MATERIALS AND METHODS Diffusional kurtosis imaging and cognitive assessments were performed on 58 patients with type 2 diabetes mellitus and 58 controls. Voxel-based intergroup comparisons of diffusional kurtosis imaging metrics were conducted, and ROI-based intergroup comparisons were further performed. Correlations between the diffusional kurtosis imaging metrics and cognitive/clinical measurements were assessed after controlling for age, sex, and education in both patients and controls. RESULTS Altered diffusion metrics were observed in the corpus callosum, the bilateral frontal WM, the right superior temporal WM, the left external capsule, and the pons in patients with type 2 diabetes mellitus compared with controls. The splenium of the corpus callosum and the pons had abnormal kurtosis metrics in patients with type 2 diabetes mellitus. Additionally, altered diffusion metrics in the right prefrontal WM were significantly correlated with disease duration and attention task performance in patients with type 2 diabetes mellitus. CONCLUSIONS With both conventional diffusion and additional kurtosis metrics, diffusional kurtosis imaging can provide additional information on WM microstructural abnormalities in patients with type 2 diabetes mellitus. Our results indicate that WM microstructural abnormalities occur before cognitive decline and may be used as neuroimaging markers for predicting the early cognitive impairment in patients with type 2 diabetes mellitus.
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Affiliation(s)
- Y Xie
- From the Department of Radiology and Tianjin Key Laboratory of Functional Imaging (Y.X., Y.Z., W.Q., Q.Z.), Tianjin Medical University General Hospital, Tianjin, China
| | - Y Zhang
- From the Department of Radiology and Tianjin Key Laboratory of Functional Imaging (Y.X., Y.Z., W.Q., Q.Z.), Tianjin Medical University General Hospital, Tianjin, China
| | - W Qin
- From the Department of Radiology and Tianjin Key Laboratory of Functional Imaging (Y.X., Y.Z., W.Q., Q.Z.), Tianjin Medical University General Hospital, Tianjin, China
| | - S Lu
- Departments of Radiology (S.L.)
| | - C Ni
- Cardiology (C.N.), Tianjin Medical University Metabolic Diseases Hospital, Tianjin, China
| | - Q Zhang
- From the Department of Radiology and Tianjin Key Laboratory of Functional Imaging (Y.X., Y.Z., W.Q., Q.Z.), Tianjin Medical University General Hospital, Tianjin, China
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Xu T, Li M, Tian Y, Song JT, Ni C, Guo XY. [Clinical evaluation of in-plane ultrasound-guided thoracic paravertebral block using laterally intercostal approach]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:148-152. [PMID: 28203022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate the feasibility and success rate of in-plane ultrasound-guided paravertebral block using laterally intercostal approach. METHODS In the study, 27 patients undergoing elective thoracic surgery were selected to do paravertebral block preoperatively. The fifth intercostal space was scanned by ultrasound probe which was placed along the long axis of the rib and 8 cm lateral to the midline of the spine. The needle was advanced in increments aiming at the space between the internal and innermost intercostal muscles. Once the space between the muscles was achieved, 20 mL of 0.5% (mass fraction) ropivacaine was injected and a catheter was inserted. Whether the tip of catheter was in right place was evaluated by ultrasound image. The block dermatomes of cold sensation were recorded 10, 20 and 30 min after the bolus drug was given. Then 0.2% ropivacaine was infused with 6 mL/h via the catheter by an analgesia pump postoperatively. The block dermatomes of cold sensation and pain score were recorded 1, 6, 24 and 48 h postoperatively. RESULTS The first attempt success rate of catheteration was 81.48% (22/27); the tips of catheter were proved in right places after the second or third attempt in 5 patients. The median numbers of the block dermatomes 10, 20 and 30 min after the bolus drug was given were 2, 3, 4; the median numbers of block dermatomes were 5, 5, 5, 4, and of pain score were 1, 1, 2, 2 at 1, 6, 24, 48 h postoperatively; no case of bilateral block, pneumothorax or vessel puncture occurred. CONCLUSION Thoracic paravertebral block using laterally intercostal approach is feasible, which has high success rate of block and low rate of complications.
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Affiliation(s)
- T Xu
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - M Li
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - Y Tian
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - J T Song
- Department of Thoracic Surgery, Peking University Third Hospital, Beijing 100191, China
| | - C Ni
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
| | - X Y Guo
- Department of Anesthesiology, Peking University Third Hospital, Beijing 100191, China
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Zhang J, Cheng R, Liang J, Ni C, Li M, Yao Z. Report of a child with sporadic familial progressive hyper- and hypopigmentation caused by a novel KITLG mutation. Br J Dermatol 2016; 175:1369-1371. [PMID: 27106731 DOI: 10.1111/bjd.14694] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - J Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
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14
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Li M, Li Z, Wang J, Ni C, Sun Z, Wilson NJ, Zhang J, Chen F, Li X, Du X, Yu H, Zhang L, Smith FJD, Zhang G, Yao Z. Mutations in the mevalonate pathway genes in Chinese patients with porokeratosis. J Eur Acad Dermatol Venereol 2016; 30:1512-7. [PMID: 27422687 DOI: 10.1111/jdv.13653] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/11/2016] [Indexed: 12/26/2022]
Abstract
BACKGROUND Porokeratosis (PK, MIM 175800) is a chronic autosomal dominant cutaneous keratinization disorder, which has a wide variety of clinical manifestations. OBJECTIVES We analysed the molecular basis of 10 families and 12 sporadic cases with different subtypes of porokeratosis in the Chinese population. METHODS Genomic DNA was extracted from peripheral blood samples. Mutation screening was performed by direct sequencing of exons and flanking intron-exon boundaries for the entire coding region of four mevalonate pathway genes and SLC17A9 gene. RESULTS We detected three novel mutations and seven previously described mutations by direct sequence analysis of the PCR products. Mutations p.Phe249Ser and p.Asn292Ser in mevalonate decarboxylase (MVD) were the most common mutations in this PK cohort; their presence was 27.3% and 13.6% respectively. CONCLUSIONS This study extended the mutation spectrum of PK in the Chinese Han population and provided further evidence for the genetic basis of PK. We first identified MVD simultaneously responsible for porokeratosis palmaris et plantaris disseminate development and confirmed the genotype-phenotype correlations.
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Affiliation(s)
- M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Centre for Dermatology and Genetic Medicine, College of Life Sciences and Medicine, Dentistry and Nursing, University of Dundee, Dundee, UK
| | - Z Li
- Department of Dermatology, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - J Wang
- Department of Dermatology, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Sun
- Department of Dermatology, Fengxian Institute of Dermatosis Prevention, Shanghai, China
| | - N J Wilson
- Centre for Dermatology and Genetic Medicine, College of Life Sciences and Medicine, Dentistry and Nursing, University of Dundee, Dundee, UK
| | - J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - F Chen
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - X Li
- Department of Dermatology, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - X Du
- Department of Dermatology, Nanjing Medical University, Affiliated Wuxi People's Hospital, Wuxi, China
| | - H Yu
- Department of Dermatology, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - L Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - F J D Smith
- Centre for Dermatology and Genetic Medicine, College of Life Sciences and Medicine, Dentistry and Nursing, University of Dundee, Dundee, UK
| | - G Zhang
- Institute of Photomedicine, Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai, China
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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15
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Macias-Montero M, Askari S, Mitra S, Rocks C, Ni C, Svrcek V, Connor PA, Maguire P, Irvine JTS, Mariotti D. Energy band diagram of device-grade silicon nanocrystals. Nanoscale 2016; 8:6623-6628. [PMID: 26939617 DOI: 10.1039/c5nr07705b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Device grade silicon nanocrystals (NCs) are synthesized using an atmospheric-pressure plasma technique. The Si NCs have a small and well defined size of about 2.3 nm. The synthesis system allows for the direct creation of thin films, enabling a range of measurements to be performed and easy implementation of this material in different devices. The chemical stability of the Si NCs is evaluated, showing relatively long-term durability thanks to hydrogen surface terminations. Optical and electrical characterization techniques, including Kelvin probe, ultraviolet photoemission spectroscopy and Mott-Schottky analysis, are employed to determine the energy band diagram of the Si NCs.
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Affiliation(s)
- M Macias-Montero
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
| | - S Askari
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
| | - S Mitra
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
| | - C Rocks
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
| | - C Ni
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - V Svrcek
- Research Center for Photovoltaic Technologies, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8568, Japan
| | - P A Connor
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - P Maguire
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
| | - J T S Irvine
- School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - D Mariotti
- Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), University of Ulster, BT37 0QB, UK.
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16
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Lv Q, Gong L, Zhang T, Ye J, Chai L, Ni C, Mao Y. Prognostic value of circulating tumor cells in metastatic breast cancer: a systemic review and meta-analysis. Clin Transl Oncol 2016; 18:322-30. [PMID: 26260915 DOI: 10.1007/s12094-015-1372-1] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 07/28/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Metastatic breast cancer (MBC) remains the main cause of cancer-related death, and the clinical significance and prognostic role of circulating tumor cells (CTCs) in metastatic breast cancer are still controversial. Here, we conducted a meta-analysis to clarify the correlation between CTCs and the clinicopathological features and prognosis of MBC. METHODS We performed a comprehensive search of Pubmed and the ISI Web of Science through December 2014. Only articles that focused on MBC patients and detected CTCs using the CellSearch system were included. The associations between CTCs and survival rate and clinicopathological parameters, including molecular pattern, metastatic region and treatment response, were evaluated. RESULTS This meta-analysis included 24 studies (3701 MBC patients), 13 prospective studies and 11 retrospective studies. We found that CTCs were more frequently detected with HER2 + primary tumors (pooled RR = 0.73, 95 % CI = 0.63-0.84). Additionally, higher CTC numbers indicated a worse treatment response (RR = 0.56, 95 % CI = 0.40-0.79), poorer PFS (RR = 0.64, 95 % CI = 0.56-0.73) and poorer OS (RR = 0.69, 95 % CI = 0.64-0.75) in MBC patients. CONCLUSION Based on these results, we propose that HER2 positivity could be a significant risk factor for the presence of CTCs. Additionally, CTCs have a significant prognostic value for MBC patients. Therefore, CTCs should be continually monitored to guide the treatment of MBC patients, especially those with HER2 + primary tumors.
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Affiliation(s)
- Q Lv
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - L Gong
- Department of Otorhinolaryngology, Affiliated Cixi Hospital of Wenzhou Medical College, Cixi, 315300, China
| | - T Zhang
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - J Ye
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, National Ministry of Education, Provincial Key Laboratory of Molecular Biology in Medical Sciences), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310009, China
| | - L Chai
- Department of Otorhinolaryngology, First Affiliated Hospital, Medical School, Zhejiang University, Hangzhou, 310003, China
| | - C Ni
- Department of Breast Surgery, Zhejiang Provincial People's Hospital, Hangzhou, 310004, China
| | - Y Mao
- Department of Otorhinolaryngology, First Affiliated Hospital, Medical School, Zhejiang University, Hangzhou, 310003, China.
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17
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Zhang J, Cheng R, Liang J, Ni C, Li M, Yao Z. Lentiginous phenotypes caused by diverse pathogenic genes (SASH1 and PTPN11): clinical and molecular discrimination. Clin Genet 2016; 90:372-7. [PMID: 27659786 DOI: 10.1111/cge.12728] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/05/2016] [Accepted: 01/06/2016] [Indexed: 02/03/2023]
Abstract
Pathogenic mutations in genes (SASH1 and PTPN11) can cause a rare genetic disorder associated with pigmentation defects and the well-known LEOPARD syndrome, respectively. Both conditions presented with lentiginous phenotypes. The aim of this study was to arrive at definite diagnoses of three Chinese boys with clinically suspected lentigines-related syndromes. ADAR1, ABCB6, SASH1 and PTPN11 were candidate genes for mutational screening. Sanger sequencing was performed to identify the mutations, whereas bioinformatic analysis was used to predict the pathogenicity of novel missense mutations. Two novel mutations c.1537A>C (p.Ser513Arg) and 1527_1530dupAAGT (p.Leu511Lysfs*21) in SASH1 and a common p.Thr468Met mutation in PTPN11 were detected in three pediatric patients with lentiginous phenotypes, respectively. Comparisons between clinical presentations showed that SASH1-related phenotypes can exhibit hyper- and hypopigmentation on the trunk and extremities, similar to dyschromatosis, while scattered café au-lait spots usually appeared in PTPN11-related LEOPARD syndrome. Furthermore, the similarity in the clinical presentations of Peutz-Jeghers syndrome, Laugier-Hunziker syndrome, xeroderma pigmentosum, neurofibromatosis type I, suggesting that these conditions should be added into the differential diagnoses of lentiginous phenotypes.
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Affiliation(s)
- J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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18
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Harwell JR, Baikie TK, Baikie ID, Payne JL, Ni C, Irvine JTS, Turnbull GA, Samuel IDW. Probing the energy levels of perovskite solar cells via Kelvin probe and UV ambient pressure photoemission spectroscopy. Phys Chem Chem Phys 2016; 18:19738-45. [DOI: 10.1039/c6cp02446g] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a study of the energy levels present in a perovskite solar cell using Kelvin probe and UV air photoemission measurements. By constructing a detailed map of the energy levels in the system we are able to predict the maximum open circuit voltage of the solar cell.
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Affiliation(s)
- J. R. Harwell
- Organic Semiconductor Centre
- SUPA
- School of Physics and Astronomy
- University of St Andrews
- St Andrews
| | - T. K. Baikie
- Organic Semiconductor Centre
- SUPA
- School of Physics and Astronomy
- University of St Andrews
- St Andrews
| | | | - J. L. Payne
- EaSTChem
- School of Chemistry
- St Andrews University
- UK
| | - C. Ni
- EaSTChem
- School of Chemistry
- St Andrews University
- UK
| | | | - G. A. Turnbull
- Organic Semiconductor Centre
- SUPA
- School of Physics and Astronomy
- University of St Andrews
- St Andrews
| | - I. D. W. Samuel
- Organic Semiconductor Centre
- SUPA
- School of Physics and Astronomy
- University of St Andrews
- St Andrews
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19
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Li M, Wang J, Zhang J, Ni C, Li X, Liang J, Cheng R, Li Z, Yao Z. Genome-wide linkage and exome sequencing analyses identify an initiation codon mutation ofKRT5in a unique Chinese family with generalized Dowling-Degos disease. Br J Dermatol 2015; 174:663-6. [PMID: 26440693 DOI: 10.1111/bjd.14178] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Li
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - J. Wang
- Department of Dermatology; Henan Provincial People's Hospital; Zhengzhou Henan China
| | - J. Zhang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - C. Ni
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - X. Li
- Department of Dermatology; Henan Provincial People's Hospital; Zhengzhou Henan China
| | - J. Liang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - R. Cheng
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - Z. Li
- Department of Dermatology; Henan Provincial People's Hospital; Zhengzhou Henan China
| | - Z. Yao
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
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20
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Zhang J, Yan M, Cheng R, Ni C, Liang J, Li M, Yao Z. A rare RECQL4 indel mutation in a Chinese patient with Rothmund-Thomson syndrome. J Eur Acad Dermatol Venereol 2015; 30:e159-e161. [PMID: 26515231 DOI: 10.1111/jdv.13466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Yan
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
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21
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Shen J, Zhang J, Wang Z, Ni C, Li H, Cheng R, Liang J, Li M, Yao Z. Gene diagnosis and prenatal genetic diagnosis of a case of dystrophic epidermolysis bullosa family caused by gonadosomatic mosaicism for the COL7A1 mutation p.Gly2043Arg in the pregnant mother. J Eur Acad Dermatol Venereol 2015; 30:1627-9. [PMID: 26289024 DOI: 10.1111/jdv.13229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J Shen
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Wang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - H Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - R Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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22
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Zhang J, Cheng R, Ni C, Liang J, Li M, Yao Z. First Mal de Meleda report in Chinese Mainland: two families with a recurrent homozygous missense mutation in SLURP-1. J Eur Acad Dermatol Venereol 2015; 30:871-3. [PMID: 25763536 DOI: 10.1111/jdv.13038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- J. Zhang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - R. Cheng
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - C. Ni
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - J. Liang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - M. Li
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - Z. Yao
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
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23
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Luo C, Ji X, Fan J, Hou Z, Wang T, Wu B, Ni C. Annexin A5 promotes macrophage activation and contributes to pulmonary fibrosis induced by silica particles. Toxicol Ind Health 2015; 32:1628-38. [PMID: 25757482 DOI: 10.1177/0748233715572744] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate the contributions and underlying molecular mechanisms of annexin A5 toward silica-induced pulmonary fibrosis. METHODS Male C57BL/6 mice were randomly divided into three groups and instilled intratracheally with silica, saline, or air. Mice were euthanized at 3, 7, 14, or 28 days following treatment. Annexin A5 levels in serum and lung tissues were detected by enzyme-linked immunosorbant assay (ELISA) assays or Western blots. The association of annexin A5 levels with silica-induced lung fibrosis was further investigated in the macrophage cell line, RAW264.7. Following exposure of these cells to silica at a concentration of 200 μg/ml for 6 or 12 h, the expression levels of transforming growth factor β1 (TGF-β1), interleukin 1α (IL-1α), Fas ligand (FasL), and their downstream targets were evaluated by Western blots. Furthermore, annexin A5 and FasL were knocked down by small interfering ribonucleic acid (siRNA) and TGF-β1 secretion into the cell culture medium was measured by ELISA assays or Western blots. RESULTS Mice treated with silica demonstrated lung fibrosis at 28 days following exposure, whereas, in controls, only mild and transient inflammation was evident at day 3 and day 7 postinstillation and was not present at day 14. Furthermore, silica-exposed mice exhibited significantly (p < 0.05) elevated levels of annexin A5 in serum and lung tissues, relative to control groups. Consistent with these findings, silica exposure of RAW264.7 cells for 6 or 12 h, led to an annexin A5-dependent increase in the expression levels of TGF-β1, IL-1α, FasL, and their downstream target molecules. These silica-induced changes were reversed by siRNA-mediated knockdown of annexin A5, but downregulation of FasL led to increased annexin A5 expression and reduced levels of TGF-β1, IL-1α, and FasL downstream target molecules. CONCLUSIONS These findings define a role of annexin A5 in promoting macrophage activation via Fas/FasL pathways in silica-induced lung fibrosis.
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Affiliation(s)
- C Luo
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - X Ji
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - J Fan
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Z Hou
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - T Wang
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - B Wu
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - C Ni
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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24
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Yu L, Grist SM, Nasseri SS, Cheng E, Hwang YCE, Ni C, Cheung KC. Core-shell hydrogel beads with extracellular matrix for tumor spheroid formation. Biomicrofluidics 2015; 9:024118. [PMID: 25945144 PMCID: PMC4401801 DOI: 10.1063/1.4918754] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 04/07/2015] [Indexed: 05/09/2023]
Abstract
Creating multicellular tumor spheroids is critical for characterizing anticancer treatments since they may provide a better model of the tumor than conventional monolayer culture. Moreover, tumor cell interaction with the extracellular matrix can determine cell organization and behavior. In this work, a microfluidic system was used to form cell-laden core-shell beads which incorporate elements of the extracellular matrix and support the formation of multicellular spheroids. The bead core (comprising a mixture of alginate, collagen, and reconstituted basement membrane, with gelation by temperature control) and shell (comprising alginate hydrogel, with gelation by ionic crosslinking) were simultaneously formed through flow focusing using a cooled flow path into the microfluidic chip. During droplet gelation, the alginate acts as a fast-gelling shell which aids in preventing droplet coalescence and in maintaining spherical droplet geometry during the slower gelation of the collagen and reconstituted basement membrane components as the beads warm up. After droplet gelation, the encapsulated MCF-7 cells proliferated to form uniform spheroids when the beads contained all three components: alginate, collagen, and reconstituted basement membrane. The dose-dependent response of the MCF-7 cell tumor spheroids to two anticancer drugs, docetaxel and tamoxifen, was compared to conventional monolayer culture.
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Affiliation(s)
- L Yu
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - S M Grist
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - S S Nasseri
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - E Cheng
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - Y-C E Hwang
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - C Ni
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
| | - K C Cheung
- Electrical and Computer Engineering, University of British Columbia , Vancouver, British Columbia V6T 1Z4, Canada
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25
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Sun Z, Zhang J, Guo Y, Ni C, Liang J, Cheng R, Li M, Yao Z. Genotype-phenotype correlation of xeroderma pigmentosum in a Chinese Han population. Br J Dermatol 2015; 172:1096-102. [PMID: 25256075 DOI: 10.1111/bjd.13429] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/17/2014] [Indexed: 12/14/2022]
Affiliation(s)
- Z. Sun
- Department of Dermatology; Fengxian Institute of Dermatosis Prevention; Shanghai China
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - J. Zhang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - Y. Guo
- Department of Dermatology; Fengxian Institute of Dermatosis Prevention; Shanghai China
| | - C. Ni
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - J. Liang
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - R. Cheng
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - M. Li
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
| | - Z. Yao
- Department of Dermatology; Xinhua Hospital; Shanghai Jiaotong University School of Medicine; 1665 Kongjiang Road Shanghai 200092 China
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Ni C, Zhang J, Zhang H, Cheng RH, Liang JY, Li CX, Li M, Yao ZR. A novel mutation in the COL7A1 gene results in a unique phenotype of epidermolysis bullosa pruriginosa. J Eur Acad Dermatol Venereol 2015; 30:535-6. [PMID: 25556825 DOI: 10.1111/jdv.12933] [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: 11/27/2022]
Affiliation(s)
- C Ni
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - J Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - H Zhang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - R-H Cheng
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - J-Y Liang
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - C-X Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - M Li
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Z-R Yao
- Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
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Chen L, Ni C. CT-guided percutaneous osteoplasty as a treatment for painful malignant extravertebral bone lesions. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Zhu X, Shen J, Ni C. Initial clinical experience of CT-guided percutaneous lung biopsy using an intelligent guiding device. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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29
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Ni C, Li Z, Jin Y, Fan B, Yang C. Balloon-assisted catheter-directed thrombolysis for acute lower extremity deep vein thrombosis. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Ni C, Xu YY, Zhou SH, Wang SQ. Differential diagnosis of inflammatory myofibroblastic tumour and low-grade myofibroblastic sarcoma: two case reports with a literature review. J Int Med Res 2011; 39:311-20. [PMID: 21672335 DOI: 10.1177/147323001103900134] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Inflammatory myofibroblastic tumour (IMT) and low-grade myofibroblastic sarcoma (LGMS) have similar morpho logical and immunophenotypic features, but LGMS is more malignant than IMT and the treatment requires a wider surgical margin plus post-operative chemotherapy or radiotherapy. To date, only 28 cases of IMT and two cases of LGMS have been reported in the laryngopharynx. Recent studies have suggested that anaplastic lymphoma kinase (ALK) and cytokeratin are important markers for differentiating between the two tumours. Here, two cases involving different myofibroblastic tumours of the larynx are reported. Based on the histological and immunohistochemical results, case 1 was diagnosed as IMT involving the right arytenoepiglottic fold, while case 2 was diagnosed as LGMS involving the epiglottic-glossal surface. There was no recurrence or metastasis in either case after post-operative follow-up (12 and 14 months, respectively). It is difficult to distinguish IMT from LGMS; both morphological and immunohistological analyses are required.
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Affiliation(s)
- C Ni
- Department of Otolaryngology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Ali B, Shah LR, Ni C, Xiao JQ, Shah SI. Interplay of dopant, defects and electronic structure in driving ferromagnetism in Co-doped oxides: TiO(2), CeO(2) and ZnO. J Phys Condens Matter 2009; 21:456005. [PMID: 21694025 DOI: 10.1088/0953-8984/21/45/456005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A comprehensive study of the defects and impurity (Co)-driven ferromagnetism is undertaken in the oxide semiconductors: TiO(2), ZnO and CeO(2). The effect of magnetic (Co(2+)) and non-magnetic (Cu(2+)) impurities in conjunction with defects, such as oxygen vacancies (V(o)), have been thoroughly investigated. Analyses of the x-ray diffraction (XRD) and x-ray photoelectron spectroscopy (XPS) data reveal the incorporation of cobalt in the lattice, with no signature of cobalt segregation. It is shown that oxygen vacancies are necessary for the ferromagnetic coupling in the Co-doped oxides mentioned above. The possible exchange mechanisms responsible for the ferromagnetism are discussed in light of the energy levels of dopants in the host oxides. In addition, Co and Cu co-doped TiO(2) samples are studied in order to understand the role of point defects in establishing room temperature ferromagnetism. The parameters calculated from the bound magnetic polaron (BMP) and Jorgensen's optical electronegativity models offer a satisfactory explanation of the defect-driven ferromagnetism in the doped/co-doped samples.
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Affiliation(s)
- Bakhtyar Ali
- Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
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Wang W, Zhao H, Zhang S, Kang E, Chen Y, Ni C, Zhang S, Zhu M. Patterns of expression and function of the p75(NGFR) protein in pancreatic cancer cells and tumours. Eur J Surg Oncol 2008; 35:826-32. [PMID: 19041213 DOI: 10.1016/j.ejso.2008.10.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2008] [Revised: 10/21/2008] [Accepted: 10/23/2008] [Indexed: 02/06/2023] Open
Abstract
BACKGROUNDS/AIMS Pancreatic carcinoma is one of the most aggressive human malignancies. The aggressive and highly metastatic behaviour of pancreatic carcinoma may partly be attributable to the autocrine and/or paracrine interactions involving altered expression of neurotrophin growth factors and their corresponding receptors. The aim of the present study is to investigate the expression pattern and function of the p75(NGFR) protein in pancreatic cancer cell lines and tumours to explain the phenomenon of perineural invasion in pancreatic cancer. METHODS The expression of p75(NGFR) in 137 pancreatic adenocarcinoma samples and the corresponding adjacent pancreatic samples was examined immunohistochemically using the EnVision Plus System. Then we examined the in vitro chemotaxis behaviour of cancer cells transfected with p75(NGFR) plasmid to nerve growth factor (NGF). RESULTS Immunostaining for p75(NGFR) was weak or absent in both normal pancreata and pancreatic carcinoma tissues; however, the immunostaining was relatively weaker in the pancreatic carcinoma tissues than in the normal pancreata. It is interesting to note that p75(NGFR) expression in the cancer tissues was positively correlated with the degree of perineural invasion (chi(2)=32.94, P<0.01). The chemotaxis ability of the p75(NGFR)-transfected pancreatic cancer cells to NGF was significantly stronger than that of the non-transfected or vacant vector transfected cells (P<0.01). CONCLUSIONS Our findings indicate that p75(NGFR) expression may be involved in the perineural invasion of pancreatic cancer cells, and the mechanism might be through mediating the chemoattraction of cancer cells for neural tissues.
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Affiliation(s)
- W Wang
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai, PR China
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Ahmad A, Buzby S, Ni C, Ismat Shah S. Effect of Nb and Sc doping on the phase transformation of sol-gel processed TiO2 nanoparticles. J Nanosci Nanotechnol 2008; 8:2410-2418. [PMID: 18572656 DOI: 10.1166/jnn.2008.239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nb and Sc doped TiO2 nanoparticles were synthesized via sol-gel technique. Dopant concentration of each element was varied from 0.5 to 1.5 atomic%. The effect of metal ion doping and calcination temperatures on anatase to rutile phase transformation has been investigated. Samples were analyzed by various analytical methods such as X-ray diffraction (XRD), Transmission Electron Microscope (TEM), X-ray Photoelectron Spectroscopy (XPS) and Energy Dispersive X-ray Spectroscopy (EDS). XRD analyses showed that Nb and Sc doped samples calcined at 300 degrees C and 350 degrees C, respectively, were crystalline and had an anatase structure. Results showed that anatase was stable up to 700 degrees C annealing temperature for samples doped with 0.5 atomic% Nb. There was a sharp transition from anatase to rutile phase above 700 degrees C and complete rutile structure was obtained at 750 degrees C. However, the transformation from anatase to rutile was not so sharp in samples doped with 1.0 atomic% and 1.5 atomic% Nb. Results indicated that higher concentration of Nb helps to stabilize the anatase phase. For samples doped with 0.5 atomic% Sc, anatase phase is stable up to 650 degrees C. Transformation from anatase to rutile starts at temperature above 650 degrees C and 100% rutile phase was obtained at 800 degrees C while for samples doped with 1.0 atomic% and 1.5 atomic% Sc, the complete transformation from anatase to rutile takes place at an even higher temperature. Results indicate that increasing the calcination time from 0.5 to 2.0 hours at 500 degrees C does not affect the stability of anatase phase. However, TEM and XRD data showed that the increase in the annealing time leads to an increase in particles size. The rutile to anatase concentration ratio increased with temperature above the phase transformation temperature. The activation energy for the phase transformation from anatase to rutile for doped and undoped samples was also measured. There was a general rise in the activation energy with increasing dopant concentration.
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Affiliation(s)
- A Ahmad
- Department of Metallurgical and Materials Engineering, University of Engineering and Technology, Lahore, Pakistan
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Affiliation(s)
- J Thiel
- Department of Ceramic Materials and Components, University of Bremen, Bremen, Germany
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Chen J, Ni C, Zhuang T. Mechanical shear wave induced by piezoelectric ceramics for magnetic resonance elastography. Conf Proc IEEE Eng Med Biol Soc 2007; 2005:7020-3. [PMID: 17281891 DOI: 10.1109/iembs.2005.1616122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Magnetic resonance elastography (MRE) is a noninvasive technique to measure elasticity of tissues in vivo. For MRE, an additional actuator is needed to be mounted on an observed object, and to excite the object. In this paper, an experiment is set to obtain MR mechanical shear wave images. A novel actuator is proposed to generate mechanical wave propagating inside a gel phantom. The actuator is made of piezoelectric ceramics, and is fixed on a plexiglass bracket. Both of the gel phantom and the actuator are put into a head coil in the scanner's bore. The actuator works synchronously with an imaging sequence running on the scanner. The sequence is modified from a FLASH sequence, into a motion-sensitizing phase-contrast sequence, for shear wave imaging. Wave images are presented to show the effect of those factors, such as the stiffness of the phantoms, the frequency of the actuator, the parameters of the motion-sensitizing gradient, and the oscillation of the patient bed.
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Affiliation(s)
- J Chen
- Dept. of Biomed. Eng., Shanghai Jiao Tong Univ
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Zhu W, Li T, Ni C, Liu H, Fang L, Shang M, Kikkawa T, Katoh H, Yamamoto M. Comparative study of barnidipine and felodipine in Chinese patients with essential hypertension. J Int Med Res 2006; 34:406-12. [PMID: 16989497 DOI: 10.1177/147323000603400410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
This study evaluated the efficacy and safety of barnidipine for the treatment of mild-to-moderate essential hypertension in Chinese patients. A total of 131 patients were randomized to receive either barnidipine (10 -15 mg) or felodipine (5 - 10 mg) once daily for 4 weeks. Both drugs reduced blood pressure significantly, with > or = 87% of patients obtaining a marked or moderate effect. The mean +/- SD reductions in systolic and diastolic blood pressure were 19.2 +/- 13.6 and 14.4 +/- 7.0 mmHg, respectively, for barnidipine treatment, and 20.3 +/- 11.3 and 14.7 +/- 7.7 mmHg, respectively, for felodipine treatment. There were no significant differences between the two drugs in terms of anti-hypertensive effect, heart rate, laboratory test results or incidence of adverse events. More patients taking felodipine experienced palpitations, but this difference was not statistically significant. Barnidipine is as efficacious and safe as felodipine in the treatment of essential hypertension in Chinese patients.
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Affiliation(s)
- W Zhu
- Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.
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Gauthier M, Luo J, Calvet D, Ni C, Zhu X, Garon M, Buschmann M. Degree of crosslinking and mechanical properties of crosslinked poly(vinyl alcohol) beads for use in solid-phase organic synthesis. POLYMER 2004. [DOI: 10.1016/j.polymer.2004.09.055] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Shah SI, Li W, Huang CP, Jung O, Ni C. Study of Nd3+, Pd2+, Pt4+, and Fe3+ dopant effect on photoreactivity of TiO2 nanoparticles. Proc Natl Acad Sci U S A 2002; 99 Suppl 2:6482-6. [PMID: 11880607 PMCID: PMC128554 DOI: 10.1073/pnas.052518299] [Citation(s) in RCA: 180] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The metallorganic chemical vapor deposition method was successfully used to synthesize pure TiO(2) and Nd(3+)-, Pd(2+)-, Pt(4+)-, and Fe(3+)-doped TiO(2) nanoparticles. Polycrystalline TiO(2) structure was verified with x-ray diffraction, which showed typical characteristic anatase reflections without any separate dopant-related peaks. Transmission electron microscopy observations confirmed the existence of homogeneously distributed 22 +/- 3 nm TiO(2) nanoparticles. The particle size remained the same for the doped samples. The doping level of transition metals was kept at approximately 1 atomic percent, which was determined by x-ray photoelectron spectra and energy dispersive x-ray spectroscopy. The effects of different types of dopants on the photocatalytic activity were revealed by the degradation of 2-chlorophenols with an UV light source. The photocatalytic efficiency was remarkably enhanced by the introduction of Pd(2+) and Nd(3+). Nd(3+)-doped TiO(2) showed the largest enhancement. However, Pt(4+) changed the 2-chlorophenol degradation rate only slightly, and Fe(3+) was detrimental to this process. These effects were related to the position of the dopants in the nanoparticles and the difference in their ionic radii with respect to that of Ti(4+).
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Affiliation(s)
- S I Shah
- Department of Materials Science and Engineering, Physics and Astronomy, and Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA
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39
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Yang Z, Ni C, Shen B, Wang J, Wang Z. [Construction of membrane-anchored interleukin-6 receptor beta subunit mutant and its effect on IL-6 signal transduction]. Zhonghua Xue Ye Xue Za Zhi 2000; 21:632-5. [PMID: 11877037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To investigate whether the membrane-anchored gp130 mutant containing the second and the third fibronectin type III modules of the extracellular region could still transduce IL-6 signal. METHOD The membrane-anchored gp130 mutant cDNA was amplified by the overlap extension PCR and inserted into the mammalian expression vector pRc/RSV. The mutant was proved to be effectively expressed in SKO-007 cells and Jurkat cells by dot blot hybridization. The mutant's effects on IL-6 signaling in these two kinds of cells were detected by electrophoresis mobility shift assay (EMSA). RESULTS In SKO-007 cells, the mutant could enhance the activated APRF, but the effect was not as strong as that of wide-type gp130. IL-6 could not activate nuclear factors in Jurkat cells. After the expression vectors pRc/RSVgp130 and pRc/RSV were transfected into Jurkat cells, IL-6 could activate APRF, but could not do NF-IL6. Similar to the results in SKO-007 cells, the effects of the mutant was also weaker than that of wild-type gp130. CONCLUSION Although the mutant could still transduce IL-6 signal, it is not as efficiently as the wild-type gp130. It suggested that the Ig-like domain of gp130 also played an important role in IL-6 signal transduction.
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Affiliation(s)
- Z Yang
- Institute of Health and Environmental Medicine, Tianjin 300050, China
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Gu H, Ni C, Zhan R. [The expression of CD15 mRNA CD44v6 mRNA and nm23H1 mRNA in breast cancer and their clinical significance]. Zhonghua Yi Xue Za Zhi 2000; 80:854-7. [PMID: 11218884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To study the relationship of the expression of CD15 mRNA and its protein, CD44v6 mRNA and nm23H1 mRNA with the clinical pathology parameter and prognosis of breast cancer, and to investigate the correlation of the expression of CD15 mRNA with CD44v6 mRNA and nm23H1 mRNA. METHODS Catalyzed signal amplification (CSA) method of in situ hybridization and immunohistochemistry were used to detect the expression of CD15 mRNA and its protein, CD44v6 mRNA and nm23H1 mRNA in 94 cases of breast cancer. RESULTS The overexpression of CD15 mRNA and its protein and CD44v6 mRNA and the low expression nm23H1 mRNA were correlated with the grading, clinical stage, lymph node metastasis, recurrence and prognosis of breast cancer. Patients who had overexpression of CD15 mRNA and CD44v6 mRNA and low expression of nm23H1 mRNA had a higher lymph node metastatic rate and a lower survival rate. CONCLUSION The expression of CD15 mRNA has a synergistic action in positive and negative regulation with that of CD44v6 mRNA and nm23H1 mRNA. Combining detection of the expression of these three mRNA is a reliable index to evaluate the metastasis, recurrence and prognosis of breast cancer.
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Affiliation(s)
- H Gu
- Department of Pathology, Chinese PLA 251 Hospital, Zhangjiakou 075000, China
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Ni C, Pan J, Yao Z. [The spectra and thermodynamics of axial coordination reaction of tailed valine tetraphenylporphintozinc with pyrimidine]. Guang Pu Xue Yu Guang Pu Fen Xi 2000; 20:749-750. [PMID: 12945442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The electronic absorption spectra and thermodynamics of axial coordination reaction of 5-(4-valine butoxyphenyl)-10,15,20-tri(4-chlorophenyl)porphintozinc with pyrimidine in CHCl3 were studied. Coordination numbers and equilibrium constants of axial coordination reaction were measured by visible spectra techniques. The changes of standard molar enthalpies and standard molar entropies of reaction were obtained from the plots of ln beta vs 1/T. The influence of temperature on the axial reaction was discussed.
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Affiliation(s)
- C Ni
- Department of Chemistry, Hubei Sanxia College, 443000 Yichang
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Zou Y, Ni C. [Clinical and histopathological studies of melanocytoma of the optic disc]. Yan Ke Xue Bao 2000; 16:112-5. [PMID: 12579918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To examine the clinical features that may be useful in determining the malignant transformation of a melanocytoma of the optic disc. METHODS The clinical documentation of 10 cases, including visual acuity, visual field, fundus findings and fluorescein angiogram were analyzed retrospectively. Three of them undergone histopathologic examinations. RESULTS A benign melanocytoma may have some degree of decreased visual acuity, progressive nerve fiber bundle defect, certain amount of pigment dispersion into the vitreous, slight macular exudation and extension of the tumor tissue into the peripapillary area of the retina. CONCLUSION The progression of the associated clinical symptoms and signs appears to be not necessarily indicative of a malignant transformation of the benign disease unless they are associated with rapid enlargement of the tumor mass as well as marked pigmentary changes of the tumor surface.
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Affiliation(s)
- Y Zou
- Department of Ophthalmology, EENT Hospital, Shanghai Medical University, Shanghai 200031, China
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Cai S, Chen X, Ni C, Liu H, Liu B, Zhang J, Yang H. A feasible and effective technique for the detection of Schistosoma japonicum cercaria-infested water. Chin Med J (Engl) 1999; 112:836-9. [PMID: 11717957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
OBJECTIVE To develop a new technique for detecting Schistosoma japonicum (S. japonicum) cercariae so as to predict the distribution of area with high transmission potential and to control acute infection of schistosoma. METHODS A C-6 film was established and used to adhere the cercariae on water surface and compared with a few other conventional detecting techniques. RESULTS The average rate of the cercaria-recovery was 40% in laboratory and field using C-6 film, which was 20 times higher than that of traditional nylon-tissue adsorbing and precipitating method. Either in some areas where oncomelania were present or in some places where the snail had been under control, the technique could detect the cercariae. CONCLUSION The technique can be characterized by a feasible, economical, promptly accessible method, especially for field application.
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Affiliation(s)
- S Cai
- Nanjing Medical University, Nanjing 210029, China
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Ni C, Li H, Li C, Lu M. [The applied anatomy and measure of nasolacrimal duct]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1999; 13:62-3. [PMID: 12564018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To know the anatomy of nasolacrimal duct. METHOD 80 half-skulls of chinese adult were used to observe shapes of the orifice. RESULT Five shapes of the orifice were found. Slit-shape was the most in all shapes. 73 nasolacrimal ducts and situation of orifices have been measured with results as follows: (1) The nasolacrimal duct length is 14.14 mm (mean value); (2) The distance from the inferior margin of the anterior nostril to the anterior margin of the orifice (D.N.O.) is 29.00 mm (mean value); (3) The distance from the anterior attachment of the inferior turbinate to the anterior margin of the orifice is 11.70 mm (mean value); (4) The distance from the inferior margin of the anterior nostril to the anterior attachment of the inferior turbinate (D.N.T) is 18.30 mm (mean value). With analysis of linear regression, the relationship between the "D.N.T." and the nasolacrimal duct length, the "D.N.T." and the "D.N.O." is positive linear correlation respectively, "D.N.T." has been able to be measured easily, so the nasolacrimal duct length and the situation of the orifice have been recognized. CONCLUSION D.N.T. may be used in clinical teaching and researching work.
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Affiliation(s)
- C Ni
- Department of Otorhinolaryngology, General Hospital, Tianjin Medical University, Tianjing 300052
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Abstract
In this Letter, we describe the appearance of large, voltage-dependent currents in BLM induced by rigid rod-shaped polyols that function without charge and permanent dipole moment. The capacity of these symmetrical, nonpeptide models to form either short-living nanopores or small ion channels is shown to depend critically on the length of rigid-rod scaffold as well as the nature of the lateral side chains.
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Affiliation(s)
- N Sakai
- Department of Chemistry, Georgetown University, Washington, DC 20057, USA
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Abstract
Dofetilide, a new class III antiarrhythmic agent, was tested in various kinds of canine ventricular arrhythmias to compare its effects with those of other class III agents. Ventricular arrhythmia models used were induced by two-stage coronary ligation, digitalis, epinephrine, coronary ligation and reperfusion, and programmed electrical stimulation (PES). Dofetilide (100 micrograms/kg intravenously) did not suppress automaticity arrhythmias induced by two-stage coronary ligation and epinephrine or the coronary ligation and reperfusion arrhythmias, but suppressed the reentry arrhythmia induced by PES in dogs with old myocardial infarction (MI). This effect was associated with a prolongation of QT interval. Dofetilide also showed antiarrhythmic effect in some dogs with digitalis arrhythmia. Dofetilide increased QT interval and showed negative chronotropic effect like that of other class III drugs, but was different in antiarrhythmic profiles from those of other class III agents such as D-sotalol, E-4031, and MS-551 in that it did not prevent the occurrence of ventricular fibrillation (VF) immediately after coronary reperfusion and had some antiarrhythmic effects on digitalis arrhythmia.
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Affiliation(s)
- J Chen
- Department of Pharmacology, Yamanashi Medical University, Japan
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Sugiyama A, Ni C, Arita J, Eto K, Xue YX, Hashimoto K. Effects of the antihypoxic and neuroprotective drug, lubeluzole, on repolarization phase of canine heart assessed by monophasic action potential recording. Toxicol Appl Pharmacol 1996; 139:109-14. [PMID: 8685892 DOI: 10.1006/taap.1996.0148] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The cardiovascular effects of the antihypoxic and neuroprotective drug, lubeluzole, were investigated using beagle dogs anesthetized with halothane. Endocardial-contact electrode catheter was used for continuous monitoring of monophasic action potential (MAP), which could provide a precise information of repolarization phase. Intravenous administration of an efficacious dose of lubeluzole (0.63 mg/kg, n = 6) slightly decreased both the heart rate and the blood pressure. It did not change PQ interval and QRS width, while it significantly prolonged QT interval, corrected QT (QTc) and the duration of the MAP during the observation period over 60 min. The effects of drug on repolarization phase were late-onset and long-lasting compared with the time course of plasma drug concentrations, which changed as predicted by the two-compartment theory of pharmacokinetics. Additional injection of lubeluzole (2.5 mg/kg, n = 6) showed qualitatively similar changes to those of lower dose, and did not induce the cardiovascular collapse in any dog. Neither afterdepolarization nor ventricular escaped beat was detected during the observation period. The drug concentration in cardiac tissue was correlated linearly with the plasma drug concentration at 60 min after the second drug administration. These results indicate that lubeluzole exerts only minor cardiovascular effects except the prolongation of the repolarization period. The monitoring of plasma drug concentration may be helpful to estimate the steady-state distribution of drug to the heart, but less helpful to predict the QT prolongation. In future clinical trials, care must be taken with patients, especially those at risk to have prolonged repolarization.
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Affiliation(s)
- A Sugiyama
- Department of Pharmacology, Yamanashi Medical University Tamaho-cho, Japan
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Abstract
BACKGROUND The study sought to investigate the histogenesis of retinoblastoma. METHODS One hundred specimens of retinoblastomas were examined along with those of 18 astrocytic gliomas and 15 medulloblastomas to compare similarities of glial differentiation in retinoblastoma and the two types of brain tumour. Employing avidin-biotin immunoperoxidase technique, antibodies were applied against neuron specific enolase (NSE), glial fibrillary acidic protein (GFAP), and S-100 protein (S-100). RESULTS Most rosettes and fleurettes, and some undifferentiated cells in retinoblastomas were NSE positive, but GFAP and S-100 negative. GFAP and S-100 positive cells in retinoblastomas were detected mostly in well differentiated glial cells which were interpreted as reactive or non-neoplastic cells. Some of the GFAP and S-100 positive cells in retinoblastomas were defined as tumour cells that resembled neoplastic astrocytes in astrocytic gliomas and medulloblastomas. CONCLUSION Retinoblastoma may arise from primitive bipotential or multipotential cells capable of neuronal and glial differentiation.
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Affiliation(s)
- K P Xu
- Department of Ophthalmology, Tokyo Dental College, Chiba, Japan
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Ni C, Ma X. [Histopathologic classification of 1921 orbital tumors]. Yan Ke Xue Bao 1995; 11:101-104. [PMID: 9208664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
PURPOSE The retrospective study is undertaken to determine the histopathologic types of space-occupying lesions of the orbit in 1921 cases examined between 1953-1992 at the Eye Pathology Laboratory of Shanghai Medical University. METHODS The authors reviewed old diagnostic pathologic slides on file including HE stain as well as special stains, if available, for all the indeterminate cases. Newly prepared immunohistochemical stains are made for the controversial cases to help diagnosis. Some slides are discussed and diagnosed by Pathology Slide Meeting of the Shanghai Surgical Pathology Society. Cases with diagnosis not agreed upon by the pathology meeting are excluded from this study. RESULTS The 5 leading malignant orbital tumors are malignant lacrimal gland tumors (138 cases, 32%), malignant lacrimal sac tumors (112 cases, 26%), rhabdomyosarcomas (65 cases, 15%), lymphosarcomas (56 cases, 13%), and malignant hemangiopericytomas (31 cases, 7%). The 5 leading benign orbital tumors are cavernous hemangionas (411 cases, 36%), dermoid cysts (152 cases, 13%), benign mixed tumors (150 cases, 13%), inflammatory pseudotumosr (129 cases, 11%), and schwannomas (92 cases, 8%). Rare tumors of the orbit include alveolar soft tissue sarcoma, chondrosarcoma, mesenchymal chondrosarcoma, synovial sarcoma, giant cell tumor, granular myoblastoma, yolk sac tumor, and retinal anlage tumor. CONCLUSION This study, in agreement with other reports of the statics study of the orbital tumors demonstrates the prevalence of hemangiomas, lacrimal gland tumors and lymphoid pseudo-tumors to be the common space-occupying lesions in the orbit. Some rare tumors are discussed.
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Affiliation(s)
- C Ni
- Eye and Ear Nose Throat Hospital, Shanghai Medical University, China
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Ni C. [Primary epithelial lacrimal gland tumors: the pathologic classification of 272 cases]. Yan Ke Xue Bao 1994; 10:201-5. [PMID: 7774690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This paper reports the pathologic classification of 272 cases with primary epithelial lacrimal gland tumors in comparison with that of the salivary glands. The extensive series of lacrimal gland tumors accounts for 70% of the 390 lacrimal fossa lesions and 18% of the 1,530 orbital tumors in one single hospital. Benign mixed tumors ranked the first (52%), adenocystic carcinomas the second (25%) and malignant mixed tumors (9%) the third. Among the other less common tumors the authors identified, for the first time, 3 polymorphous low-grade adenocarcinomas, 2 spindle celled myoepitheliomas and 1 carcinosarcoma of the lacrimal gland. The diagnosis and differential diagnosis of polymorphous low-grade adenocarcinoma and spindle cell myoepithelioma were discussed.
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Affiliation(s)
- C Ni
- Department of Ophthalmology, Shanghai Medical University, China
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