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Xu JJ, Zhu XQ, Liu S, Ding LY, Fu BB, Sun CC, Pan YL, Wang W, Zhang L. Sociodemographic, clinical and treatment characteristics of current rapid-cycling bipolar disorder: a multicenter Chinese study. Int J Bipolar Disord 2024; 12:11. [PMID: 38592605 PMCID: PMC11004094 DOI: 10.1186/s40345-024-00332-z] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Rapid cycling bipolar disorder (RCBD), characterized by four or more episodes per year, is a complex subtype of bipolar disorder (BD) with poorly understood characteristics. METHOD This multicenter, observational, longitudinal cohort study enrolled 520 BD patients across seven psychiatric institutions in China from January 2013 to January 2014. Participants were divided into RCBD and non-RCBD (NRCBD) groups based on the frequency of mood episodes in the preceding year. Data collection utilized a standardized form, supplemented by a medical record review, focusing on sociodemographic, clinical, and treatment characteristics. Statistical analysis involved independent samples t-tests, Kruskal-Wallis H tests, Chi-square or Fisher's exact tests, with Bonferroni correction applied to account for multiple comparisons, and multivariable logistic regression to identify characteristics associated with RCBD. RESULTS Among the BD cohort, 9.4% were identified as current RCBD. Compared to NRCBD, RCBD patients had a shorter duration from the first psychiatric consultation to the diagnosis of BD, a reduced duration of their longest period of euthymia, a lower proportion of lifetime hospitalization history due to BD, and less use of electroconvulsive therapy (ECT) within the last 12 months. Additionally, they presented higher baseline scores on the Mood Disorder Questionnaire (MDQ) and the Brief 16-item Quick Inventory of Depressive Symptomatology Self-Report (QIDS-SR16). However, after applying the Bonferroni correction, these differences were not statistically significant. Multivariable logistic regression analysis identified three factors that were independently associated with RCBD: time from first psychiatric consultation to BD diagnosis (Odds Ratio [OR] = 0.512, P = 0.0416), lifetime hospitalization history due to BD (OR = 0.516, P = 0.0476), and ECT treatment within the past 12 months (OR = 0.293, P = 0.0472). CONCLUSION This study revealed that the duration from first psychiatric consultation to BD diagnosis, lifetime hospitalization history due to BD, and ECT treatment in the past year were associated with RCBD. Recognizing these factors could contribute to enhance the early identification and clinical outcomes of RCBD. Trial Registration Number Registry ClinicalTrials.gov NCT01770704. Date of Registration: First posted on January 18, 2013.
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Affiliation(s)
- Jin-Jie Xu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Xue-Quan Zhu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Shuang Liu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Lu-Yu Ding
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Bing-Bing Fu
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Cong-Cong Sun
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Yan-Li Pan
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China
| | - Wei Wang
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China.
| | - Ling Zhang
- Beijing Key Laboratory of Mental Disorders, National Clinical Research Center for Mental Disorders & National Center for Mental Disorders, Beijing Anding Hospital, Capital Medical University, 5 Ankang Lane, Dewai Avenue, Xicheng District, Beijing, 100088, China.
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China.
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Li XY, Liu Y, Liu F, Chen HJ, Yang WN, Yang HY, Jiang XQ, Sen ML, Wang GP, Wang J, Pan YL. [Study on drug-target binding kinetics profiles of flavonoids in Chrysanthemum morifolium and xanthine oxidase]. Zhongguo Zhong Yao Za Zhi 2021; 46:1822-1831. [PMID: 33982487 DOI: 10.19540/j.cnki.cjcmm.20201230.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Based on the target occupancy mathematical model, the binding kinetic process of potential active ingredients of lowering uric acid in Chrysanthemum morifolium with xanthine oxidase(XOD) was evaluated. The potential active ingredients of lowering uric acid in Ch. morifolium were screened by UPLC-Q-Exactivems MS technology, reference substance identification and in vitro enzymatic kinetics experiments. The binding kinetic parameters of xanthine oxidase and potential inhibitor in Ch. morifolium were determined by surface plasma resonance(SPR). The verified mathematical model of the XOD target occupancy evaluated the kinetic binding process of inhibitors and xanthine oxidase in vivo. According to UPLC-Q-Exactive MS and reference substance identification, 39 potential uric acid-lowering active ingredients in Ch. morifolium extracts were identified and the inhibitory activities of 23 compounds were determined. Three potential xanthine oxidase inhibitors were screened, namely genistein, luteolin, and apigenin. whose IC_(50 )were 1.23, 1.47 and 1.59 μmol·L~(-1), respectively. And the binding rate constants(K_(on)) were 1.26×10~6, 5.23×10~5 and 6.36×10~5 mol·L~(-1)·s~(-1), respectively. The dissociation rate constants(K_(off)) were 10.93×10~(-2), 1.59×10~(-2), and 5.3×10~(-2 )s~(-1), respectively. After evaluation by different administration methods, the three selected compounds can perform rapid and sustained inhibition of xanthine oxidase in vivo under combined administration. This study comprehensively evaluated the target occupancy process of three effective components in different ways of administration in vivo by UPLC-MS, concentration-response method, SPR technology and xanthine oxidase target occupancy model, which would provide a new research idea and method for screening active ingredients in traditional Chinese medicine.
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Affiliation(s)
- Xue-Yan Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Yang Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Fang Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Hong-Jiao Chen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Wen-Ning Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Hai-Yang Yang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Xiao-Quan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Mu-Li Sen
- School of Chinese Materia Medica, Beijing University of Chinese Medicine Beijing 102488, China
| | - Guo-Peng Wang
- Zhongcai Health(Beijing) Biological Technology Development Co., Ltd. Beijing 101503, China
| | - Jing Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Beijing 100191, China
| | - Yan-Li Pan
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences Beijing 100700, China
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Zhu SB, Huang JL, Pan JH, Ding H, Zhao XX, Zhang D, Shi CZ, Pan YL. [Evaluation of tumor vascular normalization in colorectal cancer mouse mode induced by recombinant human endostatin by intravoxel incoherent motion diffusion-weighted magnetic resonance imaging]. Zhonghua Zhong Liu Za Zhi 2019; 41:421-428. [PMID: 31216827 DOI: 10.3760/cma.j.issn.0253-3766.2019.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the feasibility of intravoxel incoherent motion diffusion-weighted magnetic resonance imaging (IVIM-DWI MRI) in the evaluation of tumor vascular normalization in a mouse model of colorectal cancer induced by recombinant human endostatin (rhES). Methods: The CT26 colorectal cancer xenograft model of BALB/c mice were established and divided into rhES group and control group, with 20 mice in each group. The mice of rhES group were intravenously injected with rhES 5 mg·kg(-1)·d(-1) once daily for 12 days, while the mice of the control group were intravenously injected with the same volume of 0.9% saline. 5 mice of rhES group and control group were randomly selected to perform IVIM-DWI MRI as following times: before treatment and four, eight, twelve days after treatment. The parameters of IVIM-DWI were recorded, including true diffusion coefficient(D), pseudo-diffusion coefficient (D(*)) and perfusion fraction (f). Meanwhile, microvessel density (MVD), pericyte coverage and tumor perfusion in tumor tissues were detected by immunofluorescence, respectively. Results: The tumor volumes of control group and rhES group before treatment were (154.42±24.65) mm(3) and (174.24±28.27)mm(3,) respectively, without statistically significant difference (P=0.440). From day 2 to day 12 after treatment, the tumor volume of rhES group was significantly smaller than that of control group (all P<0.05). There were no statistical significances of D value between the rhES group and control group before and after treatment (all P>0.05). The D(*) values of the rhES group were (10.940±2.834)×10(-3)mm(2)/s and (12.940±2.801)×10(-3)mm(2)/s in day 4 and 8 after treatment respectively, significantly higher than (6.980±1.554)×10(-3)mm(2)/s and (7.898±1.603)×10(-3)mm(2)/s of control group (P<0.05). Moreover, compared with control group, the D(*) value of rhES group was significantly lower in day 12 (6.848±1.460)×10(-3)mm(2)/s vs (9.950±2.596)×10(-3)mm(2)/s, (P<0.05). The f value of rhES group in day 8 was (0.226±0.021)%, significantly higher than (0.178±0.016)% of control group (P<0.01). The MVD of rhES group was significantly lower than that of control group (P<0.05), while the pericyte coverage and tumor perfusion of rhES group were significantly higher than those of control group in day 4 and 8 after treatment (all P<0.05). In addition, we found D(*) value of IVIM-DWI in rhES group was significantly related with MVD, pericyte coverage and tumor perfusion (r=-0.354, r=0.555, r=0.559, all P<0.05). Meanwhile, the f value in rhES group was also significantly related with MVD, pericyte coverage and tumor perfusion (r=-0.391, r=0.538, r=0.315, all P<0.05). Conclusions: IVIM-DWI MRI can effectively evaluate the vascular normalization in rhES-induced CT26 colorectal tumor.The parameters D(*) and f are closely related to intratumorally microvessel density, pericyte coverage and perfusion, which can effectively monitor the occurrence of tumor vascular normalization time.
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Affiliation(s)
- S B Zhu
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - J L Huang
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - J H Pan
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - H Ding
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - X X Zhao
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - D Zhang
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - C Z Shi
- Medical Imaging Center, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
| | - Y L Pan
- Department of General Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, China
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He SF, Jin SY, Yang W, Pan YL, Huang J, Zhang SJ, Zhang L, Zhang Y. Cardiac μ-opioid receptor contributes to opioid-induced cardioprotection in chronic heart failure. Br J Anaesth 2018; 121:26-37. [PMID: 29935580 DOI: 10.1016/j.bja.2017.11.110] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 07/27/2017] [Revised: 11/10/2017] [Accepted: 12/23/2017] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND The therapeutic potential of cardiac μ-opioid receptors in ischaemia-reperfusion (I/R) injury during opioid-modulating diseases, such as heart failure, is unknown. We aimed to explore the changes of cardiac μ-opioid receptor expression during heart failure, and its role in opioid-induced cardioprotection. METHODS Rats received doxorubicin (DOX) or were subjected to coronary artery ligation to induce heart failure, or received normal saline (NS) as control. Hearts from NS or DOX rats were isolated and subjected to myocardial ischaemia and reperfusion in an in vitro perfusion system. The opioid [D-Ala,2N-MePhe,4 Gly-ol]-enkephalin (DAMGO), with a high μ-opioid receptor specificity, morphine, and remifentanil were administrated before I/R with or without opioid receptor antagonists, or an extracellular signal-regulated kinase (ERK) inhibitor. RESULTS Cardiac μ-opioid receptor mRNA concentrations were 3.2 times elevated in DOX-treated rats compared with NS rats, while cardiac μ-opioid receptor protein concentrations showed 6.1- and 3.5-fold increases in DOX-treated and post-infarcted rats, respectively. DAMGO reduced I/R-caused infarct size, expressed as the ratio of area at risk, from 0.50 (0.04) to 0.25 (0.03) in failing rat hearts, but had no effect on infarct size in control hearts. DAMGO promoted phosphorylation of ERK and glycogen synthase kinase (GSK)-3β only in failing hearts. DAMGO-mediated cardioprotection was blocked by an ERK inhibitor. The μ-opioid receptor antagonist D-Pen-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (CTOP) prevented morphine- and remifentanil-induced cardioprotection and phosphorylation of ERK and GSK-3β in failing hearts. In contrast, δ- and κ-opioid receptor selective antagonists were less potent than CTOP in the failing hearts. CONCLUSIONS Cardiac μ-opioid receptors were substantially up-regulated during heart failure, which increased DAMGO-induced cardioprotection against I/R injury.
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Affiliation(s)
- S F He
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China
| | - S Y Jin
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China
| | - W Yang
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China
| | - Y L Pan
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China
| | - J Huang
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China
| | - S J Zhang
- Department of Ultrasound, The Second Hospital of Anhui Medical University, Hefei, China
| | - L Zhang
- Laboratory for Integrative Neuroscience, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
| | - Y Zhang
- Department of Anaesthesiology, The Second Hospital of Anhui Medical University, Hefei, China.
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Wang CZ, Wen SQ, Shi MS, Yu XE, Wang XJ, Pan YL, Zhang YF, Li H, Tan JZ. [Identification of Y-chromosomal Genetic Types for the Soldier's Remains from Huaihai Campaign]. Fa Yi Xue Za Zhi 2017; 33:357-362. [PMID: 29219264 DOI: 10.3969/j.issn.1004-5619.2017.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To identify the Y-chromosomal genetic types for the soldier's remains from Huaihai Campaign, and to offer a clue for search of their paternal relatives. METHODS DNA of the remains were extracted by the ancient DNA extraction method. Yfiler kit was used for the multiplex amplification of 17 Y-STR loci. The haplogroups of the samples were speculated. Detailed genotyping of the selected Y-SNP was performed based on the latest Y-chromosome phylogenetic tree. Haplotype-sharing analysis was done based on the data of Y-SNP and Y-STR, the closest modern individual information to the genetic relationship of remains was gained. RESULTS A total of 8 Y-STR haplotypes were observed on 17 Y-STR loci of 8 male individuals. Furthermore, 6 Y-SNP haplogroups were identified, which were O2a1-M95+, O1a1-P203+, O3*-M122+/M234-, D1-M15+, C3*-ST and R1a1-M17+. CONCLUSIONS Identification of Y-chromosomal genetic types for the soldier's remains from Huaihai Campaign shows a reference value on inferring the geographical origins of old materials.
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Affiliation(s)
- C Z Wang
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - S Q Wen
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - M S Shi
- Key Laboratory of Evidence Law and Forensic Science, Ministry of Education, China University of Political Science and Law, Beijing 100088, China
| | - X E Yu
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - X J Wang
- Natural History Research Center, Shanghai Science and Technology Museum, Shanghai 200127, China
| | - Y L Pan
- Natural History Research Center, Shanghai Science and Technology Museum, Shanghai 200127, China
| | - Y F Zhang
- Natural History Research Center, Shanghai Science and Technology Museum, Shanghai 200127, China
| | - H Li
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
| | - J Z Tan
- MOE Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai 200438, China
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Pan YL, Pan Y, Qu CM, Su CG, Li JH, Zhang XG. Identification and cloning of GOLDEN2-LIKE1 (GLK1), a transcription factor associated with chloroplast development in Brassica napus L. Genet Mol Res 2017; 16:gmr-16-01-gmr.16018942. [PMID: 28218778 DOI: 10.4238/gmr16018942] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Photosynthesis is the process by which dry matter accumulates, which affects rapeseed yield. In this study, we identified GOLDEN2-LIKE1 (GLK1), located on chromosome A07 and 59.2 kb away from the single nucleotide polymorphism marker SNP16353A07, which encodes a transcription factor associated with the rate of photosynthesis in leaves. We then identified 96 GLK1 family members from 53 species using a hidden Markov model (HMM) search and found 24 of these genes, which were derived from 17 Brassicaceae species. Phylogenetic analysis showed that 24 Brassicaceae proteins were classified into three subgroups, named the Brassica family, Adenium arabicum, and Arabidopsis. Using homologous cloning methods, we identified four BnaGLK1 copies; however, the coding sequences were shorter than the putative sequences from the reference genome, probably due to splicing errors among the reference genome sequence or different gene copies being present in the different B. napus lines. In addition, we found that BnaGLK1 genes were expressed at higher levels in leaves with more chloroplasts than were present in other leaves. Overexpression of BnaGLK1a resulted in darker leaves and siliques than observed in the control, suggesting that BnaGLK1 might promote chloroplast development to affect the rate of photosynthesis in leaves. These results will help to elucidate the mechanism of chloroplast biogenesis by GLK1 in B. napus.
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Affiliation(s)
- Y L Pan
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - Y Pan
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - C M Qu
- Engineering Research Center of South Upland Agriculture, College of Agronomy and Biotechnology, Southwest University, Chongqing, China
| | - C G Su
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - J H Li
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
| | - X G Zhang
- Key Laboratory of Horticulture Science for Southern Mountainous Regions, Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing, China
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Yan B, Zhong W, He QM, Zhang SY, Yu JK, Pan YL. Expression of transforming growth factor-β1 in neonatal rats with hyperoxia-induced bronchopulmonary dysplasia and its relationship with lung development. Genet Mol Res 2016; 15:gmr8064. [PMID: 27173325 DOI: 10.4238/gmr.15028064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to detect the expression of transforming growth factor-ß1 (TGF-ß1) in neonatal rats with hyperoxia-induced bronchopulmonary dysplasia (BPD) and to explore its relationship with lung development. Forty-eight rats (2-3 days old) were randomly divided into a hyperoxia group and a control group (N = 24) which were then fed in ≥95% oxygen atmosphere and air, respectively. On the 1st, 3rd and 7th days of hyperoxia exposure, morphological changes of lung tissues were observed under an optical microscope. TGF-ß1 mRNA and protein levels in lung tissues were detected by real-time quantitative polymerase chain reaction and western blot, respectively. With increasing time of hyperoxia exposure, the hyperoxia group gradually suffered from pathological changes such as poor development of lung tissues, alveolar simplification, decrease in the number of alveoli, and hindered pulmonary microvascular development. On the 7th day of hyperoxia exposure, TGF-ß1 mRNA and protein levels (relative to b-actin) of the hyperoxia group (0.34 ± 0.19 and 0.21 ± 0.09, respectively) were significantly lower than those of the control group (0.83 ± 0.45 and 0.57 ± 0.45, respectively; P < 0.05). TGF-ß1 participates in the pathogenesis of BPD as an important regulatory factor during pulmonary vascular development.
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Affiliation(s)
- B Yan
- Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China.,Jinan University Medical School, Guangzhou, China
| | - W Zhong
- Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Q M He
- Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - S Y Zhang
- Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - J K Yu
- Guangzhou Women and Children's Medical Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Y L Pan
- Jinan University Medical School, Guangzhou, China
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Pan YL, Wang Y, Fu Y, Wang SY, Tan WQ, Chen JS, Wu YH. [Nickel smelting dust exposures to NIH/3T3 cellular mitochondrial damage and L-ascorbic acid interference effect]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:173-7. [PMID: 27220434 DOI: 10.3760/cma.j.issn.1001-9391.2016.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To study the protection of L-ascorbic acid on mouse embryonic fibroblasts (NIH/3T3) from carcinogenic effects caused by nickel smelting smoke subjects. METHODS The NIH/3T3 cells were divided into experimental and L-ascorbic acid in the intervention group. Plus exposure group concentration of nickel refining dusts were formulate 0.00, 25.00, 50.00, 100.00 μg/ml suspension, the intervention group on the basis of the added exposure group containing L-ascorbic acid (100 mmol/L) , contacted. Then, the cell viability was detected by MTT assay, we used Calcein-AM fluorescence probe to detect cell mitochondrial permeability transition pore (MPTP) changes, JC-1 staining to observe and detect the cell mitochondrial membrane potential (MMP) change, colorimetric quantitative to study the activity of mitochondrial respiratory chain complex Ⅰ,Ⅱ,Ⅲ,Ⅳ. RESULTS Upon 24 h incubation, both cell relative inhibition rate, openness of MPTP were increasing enhanced by different concentrations, on the other hand, MMP and the activity of mitochondrial respiratory chain complexⅠ, Ⅱ, Ⅳ were obviously decreased, the differences were statistically significant (P<0.05) .After L-ascorbic acid intervention treatment, the results of the intervention group were lower than that of the exposure group, and the difference was statistically significant (P<0.05) , indicating the protection of L-ascorbic acid on cell mitochondrial from the nickel exposure damage. CONCLUSION The damage effects of nickel on NIH/3T3 cell mitochondrial was significantly enhanced with the increasing concentration, and L-ascorbic acid has certain protection on cellular mitochondrial.
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Affiliation(s)
- Y L Pan
- School of Public Heath, Harbin Medical University, Harbin 150086, China
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Zhang XQ, Wang ZM, Pan YL, Chiu HFK, Ng CH, Ungvari GS, Lai KYC, Cao XL, Li Y, Zhong BL, Xiang YT. Use of electroconvulsive therapy in older Chinese psychiatric patients. Int J Geriatr Psychiatry 2015; 30:851-6. [PMID: 25363507 DOI: 10.1002/gps.4227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/08/2014] [Accepted: 09/25/2014] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Little is known about the use of electroconvulsive therapy (ECT) in older Chinese psychiatric patients. This study examined the frequency of ECT and the demographic and clinical correlates in older psychiatric patients hospitalized in a large psychiatric institution in Beijing, China. METHODS This was a retrospective chart review of 2339 inpatients aged 60 years and older treated over a period of 8 years (2007-2013) in a university-affiliated psychiatric institution in Beijing. Sociodemographic and clinical data were collected from the electronic chart management system for discharged patients. RESULTS The rate of ECT use was 28.1% in the whole sample; 37.9% in those with bipolar disorders, 43.6% in major depression, 21.2% in schizophrenia, and 10.7% in other diagnoses. ECT ("ECT group") was associated with 60-65-year age group, high risk for suicide and low risk for falls at the time of admission, use of mood stabilizers and antidepressants, lack of health insurance, and having major medical conditions and diagnosis of major depression. The above significant correlates explained 24.9% of the variance of ECT use (p < 0.001). CONCLUSIONS In a major psychiatric hospital in China, the use of ECT was common among older patients. ECT use in older patients treated in other clinical settings warrants further investigations.
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Affiliation(s)
- Xin-Qiao Zhang
- Mood Disorders Centre, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Zhi-Min Wang
- Mood Disorders Centre, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Yan-Li Pan
- Mood Disorders Centre, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - Helen F K Chiu
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chee H Ng
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - Gabor S Ungvari
- The University of Notre Dame Australia/Marian Centre, Perth, Australia.,School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, Australia
| | - Kelly Y C Lai
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xiao-Lan Cao
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yan Li
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Bao-Liang Zhong
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yu-Tao Xiang
- Faculty of Health Sciences, University of Macau, Macao SAR, China
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Wang WZ, Li T, Shi LJ, Yan XR, Pan YL, Wu XS. Screening of differentially-expressed genes in the muscles of rabbit breeds with expression profile chip. Genet Mol Res 2015. [PMID: 26214486 DOI: 10.4238/2015.july.17.12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The molecular mechanism underlying muscle development in rabbits is not well-understood. In the current study, differentially-expressed genes were scanned using an expression profile chip in New Zealand white rabbits (introduced breed) and Fujian yellow rabbits (local breed), and some of the genes were tested using reverse transcription-polymerase chain reaction. The amplification results were consistent with the microarray data. Fourteen and 13 genes involved in muscle development were identified in the dorsal longissimus and leg muscles, respectively. Myh6, Myh7, Myh7b, Myo5b, Tnnc1, Tpm3, and Acta2 were scanned in the longissimus and leg muscles. Thus, these genes may be involved in muscle fiber formation and muscle development in rabbits. This study provides a theoretical basis for improving meat quality, as well as for the future development and utilization of local meat rabbit breeds.
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Affiliation(s)
- W Z Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - T Li
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - L J Shi
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - X R Yan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Y L Pan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - X S Wu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu Province, China
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Wang ZM, Zhu H, Pan YL, Chiu HFK, Correll CU, Ungvari GS, Lai KYC, Cao XL, Li Y, Zhong BL, Zhang XY, Xiang YT. Electroconvulsive therapy and its association with demographic and clinical characteristics in Chinese psychiatric patients. J ECT 2015; 31:114-8. [PMID: 25203288 DOI: 10.1097/yct.0000000000000181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE Little is known about the frequency of electroconvulsive therapy (ECT) use in China. This study examined the frequency of ECT and its relationship with demographic and clinical characteristics in a large psychiatric institution in China. METHODS This was a retrospective chart review of all the 19,982 inpatients aged 18 to 59 years treated during the period of 8 years (2007-2013) in a tertiary psychiatric institution in Beijing. Sociodemographic and clinical data were collected from the electronic chart management system for discharged patients. RESULTS The frequency of ECT use was 57.7% in the whole sample, 68.4% in bipolar disorders, 66.3% in major depression, 55.2% in schizophrenia, and 28.6% in other psychiatric disorders. Patients who received ECT (ECT group) had shorter length of hospitalization compared with the non-ECT group. In multiple logistic regression analysis, ECT use was independently associated with age younger than 30 years; higher risk for suicide and aggression at time of admission; mood disorders; lower risk for falls; more treatment with antipsychotics, mood stabilizers, and antidepressants; less health insurance coverage and major medical conditions; as well as non-local residency status. Compared with 2007 (35.5%), ECT use significantly increased in the period of 2008 (49.1%) to 2013 (61.9%). All these significant correlates combined explained 20% of the variance of ECT use (P < 0.001). CONCLUSIONS In a major psychiatric center in China, the use of ECT was much more common than the figures reported from most countries around the world. Reasons for this difference and variances in outcomes between settings with higher and lower ECT use should be studied.
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Affiliation(s)
- Zhi-Min Wang
- From the *Beijing Anding Hospital, Capital Medical University, Beijing, China; †Department of Psychiatry, Chinese University of Hong Kong, Hong Kong, Special Administrative Regions of the People's Republic of China; ‡Division of Psychiatry Research, The Zucker Hillside Hospital, North Shore-Long Island Jewish Health System, Glen Oaks, NY; §The University of Notre Dame Australia/Marian Centre, Perth, Australia; ∥School of Psychiatry and Clinical Neurosciences, University of Western Australia, Perth, Australia; ¶Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX; and #Faculty of Health Sciences, University of Macau, Macau, Special Administrative Regions of the People's Republic of China
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Jia J, Sun Z, Li B, Pan Y, Wang H, Wang X, Yu F, Liu L, Zhang L, Wang X. Electro-acupuncture stimulation improves motor disorders in Parkinsonian rats. Behav Brain Res 2009; 205:214-8. [PMID: 19549545 DOI: 10.1016/j.bbr.2009.06.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Revised: 06/09/2009] [Accepted: 06/15/2009] [Indexed: 11/27/2022]
Abstract
Electro-acupuncture (EA) is believed to be effective for alleviating motor symptoms in patients with Parkinson's disease. In a rat hemiparkinsonian model induced by unilateral transection of the medial forebrain bundle (MFB), the effects of EA stimulation were investigated. EA stimulation at a high frequency (100 Hz) significantly reduced apomorphine-induced rotational behavior. Tyrosine hydroxylase immunohistochemical staining revealed that EA at 100 Hz protected axotomized dopaminergic neurons from degeneration in the substantia nigra (SN). Moreover, high frequency EA reversed the axotomy-induced decrease in substance P content and increase in glutamate decarboxylase-67 (GAD 67) mRNA level in the midbrain; however, it did not affect the axotomy-induced increase in enkephalin content in the globus pallidus. These results suggest that the effects of high frequency EA on motor symptoms of Parkinsonian rats may involve restoration of the homeostasis of dopaminergic transmission in the basal ganglia circuit.
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Affiliation(s)
- Jun Jia
- Department of Physiology, Key Laboratory for Neurodegenerative Disorders of the Ministry of Education, Capital Medical University, Beijing 100069, PR China
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13
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Fan WY, Tong YY, Pan YL, Shang WL, Shen JY, Li W, Li LJ. Traditional Chinese Medical Journals Currently Published in Mainland China. J Altern Complement Med 2008; 14:595-609. [DOI: 10.1089/acm.2008.0009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Wei-Yu Fan
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Yuan-Yuan Tong
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Yan-Li Pan
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Wen-Ling Shang
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Jia-Yi Shen
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Wei Li
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
| | - Li-Jun Li
- Institute of Information on Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, People's Republic of China
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Liang J, Wang JB, Pan YL, Wang J, Liu LL, Guo XY, Sun L, Lin T, Han S, Xie HH, Yin F, Guo XG, Fan D. High frequency occurrence of 1-OPRD variant of PRNP gene in gastric cancer cell lines and Chinese population with gastric cancer. Cell Biol Int 2006; 30:920-3. [PMID: 16914329 DOI: 10.1016/j.cellbi.2006.05.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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: 08/05/2005] [Revised: 04/14/2006] [Accepted: 05/20/2006] [Indexed: 01/12/2023]
Abstract
The prion protein gene PRNP encodes PrPc and PrPsc, causing a number of neurological disorders. Approximately 10-15% of human prion disease is inherited and more than 20 pathogenic mutations have been found. Most of the genetic alterations are point mutations, with the exception of genetic insertions of one to nine extra octapeptide repeats occurring in the important octapeptide-coding region. Our previous work showed that PrPc was overexpressed in gastric cancer. We wondered whether mutations of PrPc existed in human gastric cancer. DNA sequencing and gel electrophoresis were used to determine the possible mutation of PrPc in patients and cell lines of gastric cancer. We found that 1-OPRD (one octapeptide-repeat deletion) homozygosity or heterozygosity exists in several gastric cancer cell lines, e.g. MKN28 and KatoIII are homozygous for 1-OPRD, and SGC7901 and BGC-823 are heterozygous for 1-OPRD. The mutation frequency in tissues of gastric cancer cases is significantly higher than that in the common population (p<0.05). All positive cases in gastric cancer were found to be heterozygous for 1-OPRD. Further study of the variant may be helpful in understanding the mechanisms of occurrence and development of clinical gastric carcinoma as well as the biology of the mysterious gene PRNP.
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Affiliation(s)
- J Liang
- State Key Laboratory of Cancer Biology&Institute of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
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Liang J, Pan YL, Ning XX, Sun LJ, Lan M, Hong L, Du JP, Liu N, Liu CJ, Qiao TD, Fan DM. Overexpression of PrPC and its antiapoptosis function in gastric cancer. Tumour Biol 2006; 27:84-91. [PMID: 16582585 DOI: 10.1159/000092488] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2005] [Accepted: 05/24/2005] [Indexed: 12/30/2022] Open
Abstract
Cellular prion protein (PrP(C)), a glycosylphosphatidylinositol-anchored membrane protein, was found in our lab to be widely expressed in gastric cancer cell lines. In order to evaluate its biological significance in human gastric cancer, we investigated its expression in a large series of gastric tissue samples (n = 124) by immuno histochemical staining with the monoclonal antibody 3F4. Compared with normal tissues, gastric adenocarcinoma showed increased PrP(C) expression, correlated with the histopathological differentiation (according to the WHO and Lauren classifications) and tumor progression (as documented by pTNM staging). To better understand the underlying mechanism, we introduced the PrP(C) and two pairs of RNAi into the poorly differentiated gastric cancer cell line AGS and found that PrP(C) suppressed ROS and slowed down apoptosis in transfected cells. Further study proved that the apoptosis-related protein Bcl-2 was upregulated whereas p53 and Bax were downregulated in the PrP(C)-transfected cells. A reverse effect was observed in PrP(C) siRNA-transfected cells. These results strongly suggested that PrP(C) might play a role as an effective antiapoptotic protein through Bcl-2-dependent apoptotic pathways in gastric cancer cells. Further study into the mechanism of these relationships might enrich the knowledge of PrP, better our understanding of the nature of gastric carcinoma, and further develop possible strategies to block or reverse the development of gastric carcinoma.
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Affiliation(s)
- J Liang
- State Key Laboratory of Cancer Biology and Institute of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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16
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Liu XY, Zhou HF, Pan YL, Liang XB, Niu DB, Xue B, Li FQ, He QH, Wang XH, Wang XM. Electro-acupuncture stimulation protects dopaminergic neurons from inflammation-mediated damage in medial forebrain bundle-transected rats. Exp Neurol 2004; 189:189-96. [PMID: 15296849 DOI: 10.1016/j.expneurol.2004.05.028] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2004] [Revised: 05/21/2004] [Accepted: 05/21/2004] [Indexed: 11/24/2022]
Abstract
Through producing a variety of cytotoxic factors upon activation, microglia are believed to participate in the mediation of neurodegeneration. Intervention against microglial activation may therefore exert a neuroprotective effect. Our previous study has shown that the electro-acupuncture (EA) stimulation at 100 Hz can protect axotomized dopaminergic neurons from degeneration. To explore the underlying mechanism, the effects of 100 Hz EA stimulation on medial forebrain bundle (MFB) axotomy-induced microglial activation were investigated. Complement receptor 3 (CR3) immunohistochemical staining revealed that 24 sessions of 100 Hz EA stimulation (28 days after MFB transection) significantly inhibited the activation of microglia in the substantia nigra pars compacta (SNpc) induced by MFB transection. Moreover, 100 Hz EA stimulation obviously inhibited the upregulation of the levels of tumor necrosis factor (TNF)-alpha and interleukin (IL)-1beta mRNA in the ventral midbrains in MFB-transected rats, as revealed by reverse transcriptase polymerase chain reaction (RT-PCR). ED1 immunohistochemical staining showed that a large number of macrophages appeared in the substantia nigra (SN) 14 days after MFB transection. The number of macrophages decreased by 47% in the rats that received 12 sessions of EA simulation after MFB transection. These data indicate that the neuroprotective role of 100 Hz EA stimulation on dopaminergic neurons in MFB-transected rats is likely to be mediated by suppressing axotomy-induced inflammatory responses. Taken together with our previous results, this study suggests that the neuroprotective effect of EA on the dopaminergic neurons may stem from the collaboration of its anti-inflammatory and neurotrophic actions.
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Affiliation(s)
- Xian-Yu Liu
- Neuroscience Research Institute, Peking University, Beijing 100083, PR China
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Hill SC, Pinnick RG, Niles S, Fell NF, Pan YL, Bottiger J, Bronk BV, Holler S, Chang RK. Fluorescence from airborne microparticles: dependence on size, concentration of fluorophores, and illumination intensity. Appl Opt 2001; 40:3005-3013. [PMID: 18357318 DOI: 10.1364/ao.40.003005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We measured fluorescence from spherical water droplets containing tryptophan and from aggregates of bacterial cells and compared these measurements with calculations of fluorescence of dielectric spheres. The measured dependence of fluorescence on size, from both droplets and dry-particle aggregates of bacteria, is proportional to the absorption cross section calculated for homogeneous spheres containing the appropriate percentage of tryptophan. However, as the tryptophan concentration of the water droplets is increased, the measured fluorescence from droplets increases less than predicted, probably because of concentration quenching. We model the dependence of the fluorescence on input intensity by assuming that the average time between fluorescence emission events is the sum of the fluorescence lifetime and the excitation lifetime (the average time it takes for an illuminated molecule to be excited), which we calculated assuming that the intensity inside the particle is uniform. Even though the intensity inside the particles spatially varies, this assumption of uniform intensity still leads to results consistent with the measured intensity dependence.
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Abstract
To investigate the mechanisms of neuronal death in neurodegeneration, in vivo localized proton magnetic resonance spectroscopy ((1)H-MRS) and diffusion-weighted MRI (DWI) were used to evaluate temporal changes in rat striata after administration of 3-nitropropionic acid. It was found that N-acetylaspartate (NAA) reduction, with nearly simultaneous evidence of striatal lesions in DWI, was preceded by a significant and progressive increase of acetate. Shortly before the NAA levels decreased to the lowest point, acetate levels peaked and began to gradually decline toward the control levels. These results suggest that acetate increase may arise from fatty acid degradation, inhibition of succinate dehydrogenase and possible NAA hydrolysis. The elevated acetate may provide a source of acetyl group for membrane repair during excitotoxic brain injury. Magn Reson Med 44:29-34, 2000.
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Affiliation(s)
- W T Lee
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan, Republic of China
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Holler S, Surbek M, Chang RK, Pan YL. Two-dimensional angular optical scattering patterns as droplets evolve into clusters. Opt Lett 1999; 24:1185-1187. [PMID: 18073978 DOI: 10.1364/ol.24.001185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Remarkable changes in the two-dimensional angular optical scattering (TAOS) pattern are observed when an acoustically levitated water droplet with inclusions evolves into a dry aggregate. The emergence of polystyrene latex sphere inclusions near the droplet surface has a clear effect on the TAOS. A speckle pattern in the TAOS replaces the continuous contours associated with Mie scattering from a smooth droplet. Once the contours break up, this speckle pattern persists as the levitated droplet evaporates, making the transition from a droplet with inclusions to a dried aggregate. The initial emergence of the speckle pattern is observed for an inclusion volume fraction near 8%.
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Pan YL, Holler S, Chang RK, Hill SC, Pinnick RG, Niles S, Bottiger JR. Single-shot fluorescence spectra of individual micrometer-sized bioaerosols illuminated by a 351- or a 266-nm ultraviolet laser. Opt Lett 1999; 24:116-118. [PMID: 18071426 DOI: 10.1364/ol.24.000116] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Reproducible fluorescence spectra of individual 2- to 5-microm -diameter biological aerosol particles excited with a single shot from a Q -switched laser (266 or 351 nm) have been obtained with highly improved signal-to-noise ratios. Critical to the advance are crossed diode-laser trigger beams, which precisely define the sample volume, and a reflecting objective, which minimizes chromatic aberration and has a large N.A. for collecting fluorescence. Several allergens (red oak, meadow oat pollen, paper mulberry pollen, and puffball spores) have different fluorescence spectra. Bacillus subtilis fluorescence spectrum deteriorates at high 266-nm incident intensity. Dry riboflavin particles illuminated with a 351-nm light exhibit a new 420-nm fluorescence peak that grows nonlinearly with laser pulse energy.
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Abstract
OBJECTIVE To collect information on changes in dietary patterns among Asian students before and after immigration to the United States. DESIGN A questionnaire designed to collect information about background, changes in food habits, and frequency of food consumption from a 72-item food list was mailed to subjects. SUBJECTS/SETTING Potential participants were students of local universities and junior colleges who were born in China, Taiwan, Hong Kong, Japan, or Korea and were aged 18 years or older. All subjects were required to have been residing in the United States for at least 3 months before the start of the study. Questionnaires were mailed to 120 potential participants. STATISTICAL ANALYSIS Paired t tests were used to determine differences in eating patterns and frequency of food consumption of subjects before and after immigrating to the United States. RESULTS Seventy-one questionnaires were returned. Because of missing information on 8 of these questionnaires, only 63 were used in the analysis, which gave a response rate of 53%. The number of students consuming only 2 meals per day increased significantly; 29 (46%) respondents skipped breakfast because of their school schedules. Despite no significant change in the frequency of snack consumption, a majority (n = 46; 73%) of the respondents were consuming more salty and sweet snack items. Subjects were eating out less often, but they were selecting more American-style fast foods when they did eat out. Significant increases were noted in consumption of fats/sweets, diary products, and fruits, and significant decreases were noted in the consumption of meat/meat alternatives and vegetables after immigration to the United States. APPLICATIONS/CONCLUSIONS Results of this study could be useful to dietetics practitioners as they observe changes in dietary patterns of Asian immigrants. These health professionals can use this information to plan nutrition education programs for Asian groups so that they can make informed decisions in adapting to new eating patterns and make wise food choices in their new environment. It is important to help Asian immigrants retain healthful food habits from their original country and to encourage them to choose eating patterns of the new culture that are nutritionally sound.
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Affiliation(s)
- Y L Pan
- Department of Dietetics and Nutrition, College of Health Sciences, Florida International University, Miami 33199, USA
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Lin LH, Din TS, Pan YL. Function of GABA rho1 receptors is up-regulated by chronic GABA treatment in Xenopus oocytes. Neurosci Lett 1998; 254:81-4. [PMID: 9779925 DOI: 10.1016/s0304-3940(98)00659-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study was aimed to investigate the effect of chronic gamma-aminobutyric acid (GABA) treatment on homomeric GABA rho1 receptors expressed in Xenopus oocytes. The rho1 mRNA-injected oocytes were incubated with 10 mM GABA for 2, 6, 24, 48 or 72 h, prior to the assessment of GABA-gated ion currents. The results showed that GABA exposure for more than 6 h dramatically enhanced the peak GABA-activated currents. In addition to current amplitude, the apparent GABA potency and cooperativity were significantly increased. The enhancement reached its plateau after a 24-h exposure. The up-regulation of GABA current amplitude was completely inhibited by cycloheximide, a translation inhibitor. This suggests that chronic GABA treatment may increase the translational activity of GABA rho1 subunit in Xenopus oocytes.
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Affiliation(s)
- L H Lin
- Department of Pharmacology, Chang Gung University School of Medicine, Kweisan, Taoyuan, Taiwan.
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Li HY, Pan YL, Wang Y. Leprosy control in Shandong Province, China, 1955-1983; some epidemiological features. Int J Lepr Other Mycobact Dis 1985; 53:79-85. [PMID: 3998564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A comprehensive leprosy control program was launched in Shandong Province, People's Republic of China, in 1955, with the establishment of the Provincial Skin Disease Control Institute and a network of Skin Disease Control Stations and leprosy hospitals at the county level. Through repeated different methods of case finding, dapsone monotherapy, and intensive follow up, incidence has decreased from 5.1 to 0.46/100,000 in 25 years. Findings such as the increase in the mean age at onset and in the lepromatous-to-tuberculoid ratio, and a general decline in the age-specific incidence in successive cohorts, are in concurrence with the findings in other countries where leprosy is disappearing.
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Chiang YC, Pan YL, Tian CR, Yie GK. Extraoral sagittal osteotomy of the mandibular ramus. Oral Surg Oral Med Oral Pathol 1983; 56:236-9. [PMID: 6579457 DOI: 10.1016/0030-4220(83)90002-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A new type of extraoral sagittal osteotomy of the mandibular ramis and retromolar region is described. This is a simple and versatile procedure which may may be used in the correction of prognathism, retrognathism, open bite, and mandibular asymmetry. The procedure shares all the advantages of the intraoral sagittal osteotomy of the mandibular ramus and has several other advantages as well. A case is presented for illustration.
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Krooth RS, Pan YL, Pinsky L. Studies of the orotidine 5'-monophosphate decarboxylase activity of crude extracts of human cells. Biochem Genet 1973; 8:133-48. [PMID: 4266160 DOI: 10.1007/bf00485541] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Tubergen DG, Heyn RM, Krooth RS, Pan YL, Wuu KD. Orotic aciduria in a girl with normal growth and development. J Pediatr 1969; 74:826-7. [PMID: 5778845 DOI: 10.1016/s0022-3476(69)80169-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Pan YL, Krooth RS. The influence of progressive growth on the specific catalase activity of human diploid cell strains. I. Effect of cellular genotype: homozygous strains. J Cell Physiol 1968; 71:151-9. [PMID: 5674706 DOI: 10.1002/jcp.1040710205] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Pan YL, Krooth RS, Takahara S. The influence of progressive growth on the specific catalase activity of human deploid cell strains. II. Effect of cellular genotype: a heterozygous strain. J Cell Physiol 1968; 71:161-3. [PMID: 5674707 DOI: 10.1002/jcp.1040710206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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