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Luo F, Meng L, Wang T, Yu X, Shen Y, Ji N. Pulsed radiofrequency treatment for idiopathic trigeminal neuralgia: a retrospective analysis of the causes for ineffective pain relief. Eur J Pain 2013; 17:1189-92. [PMID: 23322665 DOI: 10.1002/j.1532-2149.2012.00278.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2012] [Indexed: 11/05/2022]
Abstract
We retrospectively analyzed the reasons for ineffective pain relief in patients with idiopathic trigeminal neuralgia (TN) who had undergone pulsed radiofrequency (PRF) treatment guided by computed tomography scan. We found that intraoperative PRF output voltage and electrical field intensity was significantly higher (p < 0.05) in the group who had received effective treatment than in the ineffective group. These findings suggest that optimizing PRF parameters and increasing the intraoperative output voltage (electric field intensity) may therefore, provide better pain relief in patients with TN.
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677
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Zhao G, Yan W, Chen E, Yu X, Cai W. Numerical simulation of the inhibitory effect of angiostatin on metastatic tumor angiogenesis and microenvironment. Bull Math Biol 2013; 75:274-87. [PMID: 23292363 DOI: 10.1007/s11538-012-9805-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Accepted: 12/04/2012] [Indexed: 10/27/2022]
Abstract
The present work formulates and analyzes the inhibitory effect of anti-angiogenic factor angiostatin excreted by the primary tumor on metastatic tumor angiogenesis, blood perfusion, and interstitial fluid flow in the tumor microenvironment by means of a numerical experiment. The simulation results demonstrate that angiostatin has an obvious impact on the morphology, growth rate, and the number of branches of microvascular network inside and outside the metastatic tumor, and angiostatin has the capacity to regulate and inhibit the formation of new blood vessels. Heterogeneous blood perfusion, widespread interstitial hypertension, and low convection within the metastatic tumor have obviously improved under the inhibitory effect of angiostatin, which are consistent with physiological observed facts. The simulation results may provide beneficial information and theoretical models for clinical research of anti-angiogenic therapy strategies.
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678
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Zhang B, Yu X, Mao H, Xing C, Liu J. Late onset systemic lupus erythematosus with severe hypercalcaemia. W INDIAN MED J 2013; 62:92-94. [PMID: 24171337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report a case of a 76-year old female presenting with symptomatic severe hypercalcaemia, and subsequently diagnosed with late onset SLE due to the presence of anaemia, leucopenia, antibodies of antinuclear (ANA), anti-dsDNA, and also kidney impairment. Serum levels of FGF23 and intact-parathyroid hormone (iPTH) were low in this patient. Serum calcium, FGF23 and iPTH levels responded to steroids, which occurred simultaneously with disease activity. On follow-up, the faster increase in FGF23 than in parathyroid hormone suggested that FGF23 might be involved in the pathogenesis of hypercalcaemia in SLE.
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679
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Yu X, Kang M, Liu L, Guo X, Xu B. Identification and expression analysis of a putative fatty acidbinding protein gene in the Asian honeybee, Apis cerana cerana. JOURNAL OF INSECT SCIENCE (ONLINE) 2013; 13:101. [PMID: 24738831 PMCID: PMC4011366 DOI: 10.1673/031.013.10101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Accepted: 01/02/2012] [Indexed: 05/31/2023]
Abstract
Fatty acid-binding proteins (FABPs) play pivotal roles in cellular signaling, gene transcription, and lipid metabolism in vertebrates and invertebrates. In this study, a putative FABP gene, referred to as AccFABP, was isolated from the Asian honeybee, Apis cerana cerana Fabricius (Hymenoptera: Apidae). The full-length cDNA consisted of 725 bp, and encoded a protein of 204 amino acids. Homology and phylogenetic analysis indicated that AccFABP was a member of the FABP multifamily. The genomic structure of this gene, which was common among FABP multifamily members, spanned 1,900 bp, and included four exons and three introns. Gene expression analysis revealed that AccFABP was highly expressed in the dark-pigmented phase of pupal development, with peak expression observed in the fat bodies of the dark-pigmented phase pupae. The AccFABP transcripts in the fat body were upregulated by exposure to dietary fatty acids such as conjugated linoleic acid, docosahexaenoic acid, and arachidonic acid. Transcription factor binding sites for Caudal-Related Homeobox and functional CCAAT/enhancer binding site, which were respectively associated with tissue expression and lipid metabolism, were detected in the 5' promoter sequence. The evidence provided in the present study suggests that AccFABP may regulate insect growth and development, and lipid metabolism.
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680
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Yu X, Seitz S, Pointon T, Bowlin JL, Cohrs RJ, Jonjić S, Haas J, Wellish M, Gilden D. Varicella zoster virus infection of highly pure terminally differentiated human neurons. J Neurovirol 2012; 19:75-81. [PMID: 23233078 DOI: 10.1007/s13365-012-0142-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 11/15/2012] [Accepted: 11/18/2012] [Indexed: 10/27/2022]
Abstract
In vitro analyses of varicella zoster virus (VZV) reactivation from latency in human ganglia have been hampered by the inability to isolate virus by explantation or cocultivation techniques. Furthermore, attempts to study interaction of VZV with neurons in experimentally infected ganglion cells in vitro have been impaired by the presence of nonneuronal cells, which become productively infected and destroy the cultures. We have developed an in vitro model of VZV infection in which highly pure (>95 %) terminally differentiated human neurons derived from pluripotent stem cells were infected with VZV. At 2 weeks post-infection, infected neurons appeared healthy compared to VZV-infected human fetal lung fibroblasts (HFLs), which developed a cytopathic effect (CPE) within 1 week. Tissue culture medium from VZV-infected neurons did not produce a CPE in uninfected HFLs and did not contain PCR-amplifiable VZV DNA, but cocultivation of infected neurons with uninfected HFLs did produce a CPE. The nonproductively infected neurons contained multiple regions of the VZV genome, as well as transcripts and proteins corresponding to VZV immediate-early, early, and late genes. No markers of the apoptotic caspase cascade were detected in healthy-appearing VZV-infected neurons. VZV infection of highly pure terminally differentiated human neurons provides a unique in vitro system to study the VZV-neuronal relationship and the potential to investigate mechanisms of VZV reactivation.
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681
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Zhao X, Song K, Wang S, Zu Y, Li N, Yu X. Micronization of the Pharmaceutically Active Agent Genipin by an Antisolvent Precipitation Process. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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682
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Xing L, Zhang J, Wang F, Yu X, Yu H, Xia L, Yu J. Phase I Study of Docetaxel, 5-fluorouracil and Cisplatin With Concurrent Radiation Therapy for Unresectable Locally Advanced Gastric Adenocarcinoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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683
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Chaudhry H, Oermann E, Suy S, Yu X, Collins S, Barnes W, Collins B. Stereotactic Body Radiation Therapy (SBRT) for Single Small (<5 cm) Extracranial Ovarian or Uterine Cancer Metastases: Promising Local Control and Normal Tissue Tolerance With 5 Fraction Approach. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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684
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Hu W, Ye J, Wang J, Peng J, Yu X, Li G, Zhang Z. Implement of Passive Breath Gating Equipment for Cone Beam CT Guided Volumetric Modulated Radiation Therapy in Gastric Cancer Treatment: Preliminary Results. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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685
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Roy S, Choksi S, Babu D, Yu X, Lau D, Ho HK, Wong KN, Panse P, Hao L, Vij S, Chen S. Identification and characterization of the vertebrate motile ciliome. Cilia 2012. [PMCID: PMC3555791 DOI: 10.1186/2046-2530-1-s1-o10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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686
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Li P, Raitcheva D, Hawes M, Moran N, Yu X, Wang F, Matthews GL. Hylan G-F 20 maintains cartilage integrity and decreases osteophyte formation in osteoarthritis through both anabolic and anti-catabolic mechanisms. Osteoarthritis Cartilage 2012; 20:1336-46. [PMID: 22809835 DOI: 10.1016/j.joca.2012.07.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2012] [Revised: 06/04/2012] [Accepted: 07/02/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To perform a molecular mechanism-based investigation of the chondroprotective potential of hylan G-F 20. METHOD The effects of hylan G-F 20 on IL-1β-induced glycosaminoglycan (GAG) depletion and matrix metalloproteinase (MMP) expression in bovine and human cartilage explants were evaluated. Three weekly intra-articular hylan G-F 20 or control injections were administered 4 weeks post-operatively to rabbits with surgically induced osteoarthritis (OA). Cartilage histopathologic scores and osteophyte size were evaluated at 1, 4, and 8 weeks post-injections. Histomorphometry and immunostaining were used to quantify cartilage area and type II collagen (Col II) intensity, and real-time polymerase chain reaction (PCR) was used to examine the mRNA levels of Col2A1, MMP-13, -16 and IL-1β at 1 week. RESULTS Hylan G-F 20 retained GAG in IL-1β-exposed bovine and human cartilage explants and abrogated IL-1β-mediated increases in MMP-1, -3, and -13 in human explant culture. Hylan G-F 20‒treated OA joints had significantly better cartilage integrity at 1 and 4 weeks post-treatment and significantly smaller osteophytes at 4 weeks compared with control. Col2A1 mRNA increased with hylan G-F 20 treatment, which correlated with a trend toward increased Col II immunostaining. MMP-13 and -16 mRNAs increased in OA cartilage, but were not significantly altered by hylan G-F 20. IL-1β mRNA was undetectable in cartilage and unaltered in the synovium. CONCLUSIONS Hylan G-F 20 improved cartilage integrity and decreased osteophyte formation in the rabbit model of OA. Our results suggest that hylan G-F 20 may stimulate cartilage repair by increasing Col II, and inhibit IL-1β-mediated matrix degradation by decreasing MMPs.
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687
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Zhang J, Xing L, Xu D, Liu F, Yu X, Tian Y. Radiation Therapy in Combination With Nimotuzumab in Elderly Patients With Locally Advanced Squamous Cell Lung Cancer: A Pilot Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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688
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Liu W, Liu N, Zhang Y, Yu X, Sun M, Xu M, Zhang Q, Liu S. APRICOT CULTIVAR EVOLUTION AND BREEDING PROGRAM IN CHINA. ACTA HORTICULTURAE 2012:223-228. [PMID: 0 DOI: 10.17660/actahortic.2012.966.35] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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689
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Chiu H, Dai J, Xiang Y, Chan S, Leung T, Yu X, Hou Z, Ungvari G, Caine E. Suicidal thoughts and behaviors in older adults in rural China: a preliminary study. Int J Geriatr Psychiatry 2012; 27:1124-30. [PMID: 22252964 PMCID: PMC4733507 DOI: 10.1002/gps.2831] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2011] [Accepted: 11/10/2011] [Indexed: 11/07/2022]
Abstract
BACKGROUND One purpose of this study was to examine the feasibility of conducting epidemiological survey on suicidal thoughts and behaviors (hereafter "suicidal thoughts/behaviors"; i.e., any suicidal ideation, serious ideation, planning, and attempts) among older adults in rural China. Another purpose was to investigate among older people in rural China the prevalence of suicidal thoughts/behaviors, as well as their sociodemographic and clinical correlates. METHODS A randomly selected sample of 263 subjects, 50 years or older, was recruited in a remote rural area of Southwestern China (Mianyang Region, Sichuan Province) and interviewed using structured instruments. Basic sociodemographic and clinical data were collected. RESULTS There was no refusal among approached subjects, and subjects were willing to answer questions on suicidal thoughts/behaviors. The lifetime prevalence of suicidal ideation, serious ideation, planning, and attempt was 28.9% (23.4%-34.4%), 19.7% (14.9%-24.6%), 11.4% (7.5%-15.3%), and 5.3% (2.6%-8.1%), respectively. The corresponding 12-month prevalence was 8.8% (5.3%-12.2%), 5.3% (2.6%-8.1%), 2.7% (0.7%-4.6%), and 0%, respectively. The 2-week prevalence was 3.4% (1.2%-5.6%), 2.3% (0.5%-4.1%), 2.3% (0.5%-4.1%), and 0%, respectively. Correlates of suicidal thoughts/behaviors of this group are similar to findings from other community studies, such as female gender, unmarried status, major medical conditions, insomnia, financial difficulties and lower education, depressive symptoms, recent stressful life events, greater life dissatisfaction. CONCLUSIONS Our findings suggest that larger scale epidemiological survey of suicidal thoughts/behaviors on older adults in rural China would be feasible. Suicidal thoughts/behaviors are common among older people in rural China, as seen in this preliminary study, which points to the need for further larger scale investigations.
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690
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Hong J, Chen J, Sun X, Deng SX, Chen L, Gong L, Cao W, Yu X, Xu J. Paediatric bacterial keratitis cases in Shanghai: microbiological profile, antibiotic susceptibility and visual outcomes. Eye (Lond) 2012; 26:1571-8. [PMID: 23079751 DOI: 10.1038/eye.2012.210] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The purpose of this study was to review the microbiological profile, in vitro antibiotic susceptibility and visual outcomes of paediatric microbial keratitis in Shanghai, China over the past 6 years. METHODS Medical records of patients aged ≤16 years were reviewed, who were diagnosed as having bacterial keratitis between 1 January 2005 and 31 December 2010. Bacterial culture results and in vitro antibiotic susceptibility were analysed. A logistic regression analysis was conducted to evaluate the relationship between visual impairment and possible risk factors. RESULTS Eighty consecutive cases of paediatric bacterial keratitis cases were included, among which 59 were identified as having positive culture. Staphylococcus epidermidis was the most commonly isolated organism (n=23; 39.0%), followed by Streptococcus pneumoniae (n=11; 18.6%) and Pseudomonas aeruginosa (n=6; 10.2%). Antibiotic sensitivities revealed that tested bacteria had low resistance rates to fluoroquinolones and aminoglycosides (8.3-18.4% and 12.5-24.4%, respectively). Multivariate logistic regression analysis proved that visual impairment was significantly associated with Gram-negative bacterial infection (odds ratio (OR)=7.626; P=0.043) and an increasing number of resistant antibiotics (OR=0.385; P=0.040). CONCLUSIONS S. epidermidis was the most common isolated organism in Shanghai paediatric keratitis. The fluoroquinolones and aminoglycosides remained good choices for treating these patients. Gram-negative bacterial infection and an increasing number of resistant antibiotics were associated with worse visual prognoses in paediatric keratitis.
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691
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Lin J, Guo Q, Ye X, Li J, Yi C, Zhang X, Wu X, Cao P, Yu X, Zhu L, Lin X, Yang X, Yu X. The effect of social support and coping style on depression in patients with continuous ambulatory peritoneal dialysis in southern China. Int Urol Nephrol 2012; 45:527-35. [PMID: 23054324 DOI: 10.1007/s11255-012-0309-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Accepted: 09/27/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE To explore the effect of social support and coping style on depression in patients on CAPD in Southern China. METHODS The patients undergoing CAPD therapy for more than 3 months were recruited from Jan 1 to May 31, 2009. The Beck Depression Inventory-II (BDI-II), Social Support Rating Scale, Medical Coping Modes Questionnaire, and Medical Outcomes Study Short Form (SF-36) were used to evaluate depression, social support, coping style, and quality of life (QoL), respectively. RESULTS Of the 191 recruited patients, 65 patients (34.0 %) suffered from depression, with a BDI-II score of 23.8 ± 8.4. The average score of QoL (44.9 ± 13.9 vs. 64.7 ± 14.2, p < 0.001), social support (37.9 ± 7.2 vs. 42.1 ± 7.3, p < 0.001), and "confrontation" coping style (17.2 ± 3.9 vs. 18.8 ± 3.8, p = 0.006) in depressed patients was significantly lower than those in non-depressed patients, respectively. While the depressed patients had significantly higher score of "acceptance-resignation" coping style (12.9 ± 2.5 vs. 10.4 ± 3.5, p < 0.001) compared with those of non-depressed patients. Univariate analysis showed that the BDI-II score was negatively associated with social support (r = -0.284, p < 0.001) and "confrontation" (r = -0.180, p = 0.013), but positively associated with "acceptance-resignation" (r = 0.482, p < 0.001). Logistic regression analysis revealed that age (OR = 0.971, p = 0.038), female sex (OR = 2.211, p = 0.039), diabetes mellitus (OR = 3.046, p = 0.015), long PD duration (OR = 1.021, p = 0.020), fatigue (OR = 2.500, p = 0.032), high Pittsburgh Sleep Quality Index (PSQI) score (OR = 1.143, p = 0.001), low social support (OR = 0.945, p = 0.046), and high "acceptance-resignation" (OR = 1.096, p = 0.020) were independently associated with depression. CONCLUSION There was a high prevalence of depression in CAPD patients. Age, female sex, diabetes mellitus, long PD duration, fatigue, sleep disturbance, low social support, and high "acceptance-resignation" coping style were independently associated with depression.
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692
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Zhang Q, Jin J, Zhong Q, Yu X, Levy D, Zhong S. ERα mediates alcohol-induced deregulation of Pol III genes in breast cancer cells. Carcinogenesis 2012; 34:28-37. [PMID: 23054611 DOI: 10.1093/carcin/bgs316] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The association of alcohol consumption and breast cancer is more pronounced in cases that are positive for estrogen receptor (ER+) than in cases that are negative (ER-). Its mechanism remains to be determined. Deregulation of RNA polymerase III (Pol III) transcription enhances cellular tRNAs and 5S rRNA production, increasing translational capacity to promote cell transformation and tumor formation. Here, we report that alcohol increases Pol III gene transcription in both normal and cancer breast cell lines. The induction in ER+ breast cancer cells (MCF-7) is significantly higher than in ER- normal breast cells (MCF-10A, MCF-10F and MCF-12A) and is correlated with ER expression. E2 causes <2-fold increase in Pol III gene transcription. The addition of ethanol to this system now produces a 10-15-fold increase. Ethanol increases ERα expression, resulting in an increase in Brf1 protein and mRNA levels. In addition, ethanol markedly stimulates phosphorylation of JNK1, but not JNK2. Inhibition of JNK1 decreases ERE-Luc reporter activity and represses expression of ERα, Brf1 and Pol III genes. Reduction of ERα by its small interfering RNA represses Brf1 and Pol III gene transcription. Ethanol with E2 produces larger and more numerous colonies. Repression of ERα or Brf1 inhibits alcohol-induced cell transformation. Together, these results support the idea that alcohol increases ERα expression through JNK1 to elevate Brf1 expression and Pol III gene transcription to bring about greater phenotypic changes. These studies demonstrate that ERα mediates Pol III gene transcription through Brf1, suggesting that ERα may play a critical role in alcohol-induced deregulation of Pol III genes in ER+ breast cancer development.
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693
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Cao C, Yu X, Liao Z, Zhu N, Huo H, Wang M, Ji G, She H, Luo Z, Yue S. Hypertonic saline reduces lipopolysaccharide-induced mouse brain edema through inhibiting aquaporin 4 expression. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2012; 16:R186. [PMID: 23036239 PMCID: PMC3682288 DOI: 10.1186/cc11670] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Accepted: 10/04/2012] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Three percent sodium chloride (NaCl) treatment has been shown to reduce brain edema and inhibited brain aquaporin 4 (AQP4) expression in bacterial meningitis induced by Escherichia coli. Lipopolysaccharide (LPS) is the main pathogenic component of E. coli. We aimed to explore the effect of 3% NaCl in mouse brain edema induced by LPS, as well as to elucidate the potential mechanisms of action. METHODS Three percent NaCl was used to treat cerebral edema induced by LPS in mice in vivo. Brain water content, IL-1β, TNFα, immunoglobulin G (IgG), AQP4 mRNA and protein were measured in brain tissues. IL-1β, 3% NaCl and calphostin C (a specific inhibitor of protein kinase C) were used to treat the primary astrocytes in vitro. AQP4 mRNA and protein were measured in astrocytes. Differences in various groups were determined by one-way analysis of variance. RESULTS Three percent NaCl attenuated the increase of brain water content, IL-1β, TNFα, IgG, AQP4 mRNA and protein in brain tissues induced by LPS. Three percent NaCl inhibited the increase of AQP4 mRNA and protein in astrocytes induced by IL-1β in vitro. Calphostin C blocked the decrease of AQP4 mRNA and protein in astrocytes induced by 3% NaCl in vitro. CONCLUSIONS Osmotherapy with 3% NaCl ameliorated LPS-induced cerebral edema in vivo. In addition to its osmotic force, 3% NaCl exerted anti-edema effects possibly through down-regulating the expression of proinflammatory cytokines (IL-1β and TNFα) and inhibiting the expression of AQP4 induced by proinflammatory cytokines. Three percent NaCl attenuated the expression of AQP4 through activation of protein kinase C in astrocytes.
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Egan MA, Carruth LM, Rowell JF, Yu X, Siliciano RF. The ins and outs of HIV endocytosis. Trends Cell Biol 2012; 7:49. [PMID: 17708904 DOI: 10.1016/s0962-8924(97)82670-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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695
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Yu X, Tang J, Wang Q, Ye W, Tao K, Duan S, Lu C, Yang X, Dong S, Zheng X, Wang Y. The RxLR effector Avh241 from Phytophthora sojae requires plasma membrane localization to induce plant cell death. THE NEW PHYTOLOGIST 2012; 196:247-260. [PMID: 22816601 DOI: 10.1111/j.1469-8137.2012.04241.x] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
• The Phytophthora sojae genome encodes hundreds of RxLR effectors predicted to manipulate various plant defense responses, but the molecular mechanisms involved are largely unknown. Here we have characterized in detail the P. sojae RxLR effector Avh241. • To determine the function and localization of Avh241, we transiently expressed it on different plants. Silencing of Avh241 in P. sojae, we determined its virulence during infection. Through the assay of promoting infection by Phytophthora capsici to Nicotiana benthamiana, we further confirmed this virulence role. • Avh241 induced cell death in several different plants and localized to the plant plasma membrane. An N-terminal motif within Avh241 was important for membrane localization and cell death-inducing activity. Two mitogen-activated protein kinases, NbMEK2 and NbWIPK, were required for the cell death triggered by Avh241 in N. benthamiana. Avh241 was important for the pathogen's full virulence on soybean. Avh241 could also promote infection by P. capsici and the membrane localization motif was not required to promote infection. • This work suggests that Avh241 interacts with the plant immune system via at least two different mechanisms, one recognized by plants dependent on subcellular localization and one promoting infection independent on membrane localization.
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696
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Yu F, Jiang Q, Zhou Y, Yang Z, Yu X, Wang H, Liu Z, Wang L, Fang W, Guo S. Abnormal expression of matrix metalloproteinase-9 (MMP9) correlates with clinical course in Chinese patients with endometrial cancer. DISEASE MARKERS 2012; 32:321-7. [PMID: 22674412 PMCID: PMC3826421 DOI: 10.3233/dma-2011-0886] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aims and background: The aim of the present study was to analyze the expression of matrix metalloproteinase-9 (MMP9) in endometrial cancer and its correlation with clinicopathologic features in Chinese patients, including the survival of patients with endometrial cancer. Methods: Using immunohistochemistry analysis, we analyzed MMP9 protein expression in clinicopathologically characterized 128 endometrial cancer (EC) cases with age ranging from 30 to 85 years (median=51.6 years) and 30 endometrial atypical hyperplasia (EAH) and 30 normal endometrium (NE). Cases with greater than or equal to 6 and less than 6 with the score value of cytoplasmic MMP9 immunostaining were regarded as high expression and low expression, respectively. The relationship between the expression levels of MMP9 and clinical features was analyzed in EC cases. Results: Immunohistochemical analysis revealed that the protein expression of MMP9 detected in EC tissues was higher than that in the EAH tissues and NE tissues (P=0.006). In addition, high levels of MMP9 protein were positively correlated with the status of lymph node metastasis (P=0.044) and the histopathological grade (P<0.05) of EC patients. Patients with higher MMP9 expression did not correlate with EC patients' clinical outcome in China. Multivariate analysis suggested that status of lymph node metastasis and depth of myometrial invasion, but not MMP9 expression level, were significantly correlated with patients' survival. Conclusion: MMP9 is highly expressed in ECs and correlates with the progression of ECs, but not be helpful in predicting the prognosis of EC patients.
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697
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Yu X, Duval M, Lewis C, Cavacini L. Impact of IgA constant domain on HIV-1 neutralizing function of monoclonal antibody F425-A1g8. Retrovirology 2012. [PMCID: PMC3442053 DOI: 10.1186/1742-4690-9-s2-p93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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698
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Yuan B, Roberts K, Zhang Z, Yu X, Simons R, Wang Y. Interpersonal conflicts influenced outcome evaluation in chicken game: An ERP study. Int J Psychophysiol 2012. [DOI: 10.1016/j.ijpsycho.2012.07.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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699
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Kunwar P, Hawkins NR, Yu X, Liu Y, Collier A, Gabriel EE, Hertz T, Horton H. Breadth or conservation score (CS): which is more important for HIV-1 T cell based vaccine immunogen design? Retrovirology 2012. [PMCID: PMC3441473 DOI: 10.1186/1742-4690-9-s2-p260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Morgan C, Jin X, Yu X, De Rosa S, Kublin J, Metch B, Keefer M, NIAID H. DNA plasmid HIV vaccine design, number of doses, participant gender, and body mass index affect T-cell responses across HIV vaccine clinical trials. Retrovirology 2012. [PMCID: PMC3441823 DOI: 10.1186/1742-4690-9-s2-p133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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