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Lee C, Han C, Su H, Wang C, Yen C. Robot-Assisted Radical Hysterectomy of Cervical Cancer in Taiwan. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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177
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Su H. Laparoscopic Cytoreductive Surgery To Treat Adenomyosis Women with Severe Dysmenorrhea. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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178
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Han C, Lee C, Su H, Wang C, Yen C. Laparoscopic Repair of Ureteral Transection in Gynecologic Laparoscopic Surgery. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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179
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Cheng YF, Berghof M, Garland RM, Wiedensohler A, Wehner B, Müller T, Su H, Zhang YH, Achtert P, Nowak A, Pöschl U, Zhu T, Hu M, Zeng LM. Influence of soot mixing state on aerosol light absorption and single scattering albedo during air mass aging at a polluted regional site in northeastern China. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010883] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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180
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Wiedensohler A, Cheng YF, Nowak A, Wehner B, Achtert P, Berghof M, Birmili W, Wu ZJ, Hu M, Zhu T, Takegawa N, Kita K, Kondo Y, Lou SR, Hofzumahaus A, Holland F, Wahner A, Gunthe SS, Rose D, Su H, Pöschl U. Rapid aerosol particle growth and increase of cloud condensation nucleus activity by secondary aerosol formation and condensation: A case study for regional air pollution in northeastern China. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010884] [Citation(s) in RCA: 154] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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181
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Kim H, Marchuk DA, Pawlikowska L, Chen Y, Su H, Yang GY, Young WL. Genetic considerations relevant to intracranial hemorrhage and brain arteriovenous malformations. ACTA NEUROCHIRURGICA. SUPPLEMENT 2009; 105:199-206. [PMID: 19066109 DOI: 10.1007/978-3-211-09469-3_38] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Brain arteriovenous malformations (AVMs) cause intracranial hemorrhage (ICH), especially in young adults. Molecular characterization of lesional tissue provides evidence for involvement of both angiogenic and inflammatory pathways, but the pathogenesis remains obscure and medical therapy is lacking. Abnormal expression patterns have been observed for proteins related to angiogenesis (e.g., vascular endothelial growth factor, angiopoietin-2, matrix metalloproteinase-9), and inflammation (e.g., interleukin-6 [IL-6] and myeloperoxidase). Macrophage and neutrophil invasion have also been observed in the absence of prior ICH. Candidate gene association studies have identified a number of germline variants associated with clinical ICH course and AVM susceptibility. A single nucleotide polymorphism (SNP) in activin receptor-like kinase-1 (ALK-1) is associated with AVM susceptibility, and SNPs in IL-6, tumor necrosis factor-alpha (TNF-alpha), and apolipoprotein-E (APOE) are associated with AVM rupture. These observations suggest that even without a complete understanding of the determinants of AVM development, the recent discoveries of downstream derangements in vascular function and integrity may offer potential targets for therapy development. Further, biomarkers can now be established for assessing ICH risk. These data will generate hypotheses that can be tested mechanistically in model systems, including surrogate phenotypes, such as vascular dysplasia and/or models recapitulating the clinical syndrome of recurrent spontaneous ICH.
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Su H, Hao Q, Shen F, Zhu Y, Lee CZ, Young WL, Yang GY. Development of a cerebral microvascular dysplasia model in rodents. ACTA NEUROCHIRURGICA. SUPPLEMENT 2009; 105:185-9. [PMID: 19066107 DOI: 10.1007/978-3-211-09469-3_36] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Normal vasculature development of the central nervous system is extremely important because patients with vascular malformations are at life-threatening risk for intracranial hemorrhage or cerebral ischemia. The etiology and pathogenesis of abnormal vasculature development in the central nervous system are unknown, and progress is hampered by the lack of animal models for human cerebrovascular diseases. Here, we report our current study on cerebral microvascular dysplasia (CMVD) development. Using vascular endothelial growth factor hyper-stimulation, we demonstrated that aberrant microvessels could be developed in the rodent brain under certain conditions (such as genetic deficient background, local cytokine and chemokine release, or exogenous vessel dilating stimulation) that may speed up focal angiogenesis and lead to cerebral vascular dysplasia.
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183
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Su H, Nassimbeni L, Weber E. Polymorphism, isomorphism and variability in the inclusion chemistry of a diol host compound. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308085565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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184
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Nassimbeni L, Jacobs A, Su H, Weber E. Polymorphism, isostructurality and selectivity in inclusion compounds. Acta Crystallogr A 2008. [DOI: 10.1107/s010876730809702x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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185
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Zhou S, Guo F, Li L, Zhou Y, Lei Y, Hu Y, Su H, Chen X, Yin P, Jian X. Multiple logistic regression analysis of risk factors for carcinogenesis of oral submucous fibrosis in mainland China. Int J Oral Maxillofac Surg 2008; 37:1094-8. [PMID: 18684592 DOI: 10.1016/j.ijom.2008.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2007] [Revised: 01/09/2008] [Accepted: 06/20/2008] [Indexed: 11/19/2022]
Abstract
Oral submucous fibrosis (OSF), a chronic progressive disorder, is regarded as the premalignant lesion of oral squamous cell carcinoma (OSCC). Its distribution is associated with chewing betel quid (BQ). The objective of the present study was to investigate risk factors for the carcinogenesis of OSF in mainland China. A case-control study was performed in 42 patients with OSCC that originated from OSF and 40 OSF controls. Epidemiological data and information related to risk factors were collected using a short structured questionnaire. Odd ratios (OR) and 95% confidence intervals (CI) were derived from logistic regression analysis. In multivariate analysis, only age, duration of BQ chewing, duration of cigarette smoking, and OSF accompanied by oral leukoplakia or oral lichen planus were associated with significantly increased risk for the malignant transformation of OSF. These findings contribute to current knowledge on the prevention of carcinogenesis of OSF in mainland China.
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Zhou C, Wu G, Feng Y, Li Q, Su H, Mais DE, Zhu Y, Li N, Deng Y, Yang D, Wang MW. Discovery and biological characterization of a novel series of androgen receptor modulators. Br J Pharmacol 2008. [DOI: 10.1038/bjp.2008.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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187
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Su H, Ye DQ, Wang BL, Fang XH, Chen J, Wang Q, Li WX, Zhang N. Transforming growth factor-β1-induced CD4+CD25+ regulatory T cells in vitro reverse and prevent a murine lupus-like syndrome of chronic graft-versus-host disease. Br J Dermatol 2008; 158:1197-209. [DOI: 10.1111/j.1365-2133.2008.08555.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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188
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Su H, Yeghiazarians Y, Lee A, Huang Y, Arakawa-Hoyt J, Ye J, Orcino G, Grossman W, Kan YW. AAV serotype 1 mediates more efficient gene transfer to pig myocardium than AAV serotype 2 and plasmid. J Gene Med 2008; 10:33-41. [PMID: 18044793 DOI: 10.1002/jgm.1129] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Adeno-associated virus (AAV) has many properties of an ideal vector for delivery of therapeutic genes into the myocardium. Previous studies in a mouse model of myocardial infarction showed that AAV serotype 1 (AAV1) is superior to AAV serotypes 2-5 to transfer genes into the myocardium by direct injection. Since vectors may behave differently in humans and because the human and the pig hearts resemble each other closely, we tested whether AAV1 is also superior to AAV2 in transferring genes into the pig myocardium. We also compared gene transduction efficiency between AAV vectors and plasmid. We injected CMVLacZ and CMVVEGF (vectors with the cytomegalovirus (CMV) promoter driving LacZ and VEGF gene expression) unpackaged or packaged in AAV serotypes 1 or 2 capsids into pig myocardium. Hearts were collected 3, 14 and 28 days after the injection. Gene expression was analyzed by real-time reverse-transcription polymerase chain reaction (RT-PCR) and histological staining. Capillaries and smooth muscle alpha-actin (SMA)-positive vessels were quantified. Potential lymphocyte infiltration at the injection sites was analyzed by immunostaining using specific antibodies. As in the mouse, AAV1 mediated better gene transduction than AAV2. Plasmid mediated minimal gene expression only. More capillaries and SMA-positive vessels were detected at AAV1CMVVEGF- and AAV2CMVVEGF-injected than AAV1CMVLacZ-injected sites. We did not detect inflammatory cell infiltration at the injection sites. In conclusion, by direct injection, AAV1 is more efficient than AAV2, and plasmid is inefficient in mediating gene transfer into the pig myocardium. AAV-mediated VEGF gene transfer can also induce neovascular formation in the pig myocardium.
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189
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Hildebrandt IJ, Su H, Weber WA. Anesthesia and Other Considerations for in Vivo Imaging of Small Animals. ILAR J 2008; 49:17-26. [DOI: 10.1093/ilar.49.1.17] [Citation(s) in RCA: 172] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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190
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Du YY, Zhou SH, Zhou T, Su H, Pan HW, Du WH, Liu B, Liu QM. Immuno-inflammatory regulation effect of mesenchymal stem cell transplantation in a rat model of myocardial infarction. Cytotherapy 2008; 10:469-78. [PMID: 18608353 DOI: 10.1080/14653240802129893] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Mesenchymal stem cells (MSC) have recently been shown to possess immunomodulatory properties in vitro and in vivo. The present study aimed to investigate the regulatory effect of MSC transplantation on the immuno-inflammatory response in myocardial infarction (MI). METHODS MI was induced in Sprague-Dawley rats by left anterior descending coronary artery ligation, and the animals were randomly assigned into the following three groups: sham ( n=8); phosphate-buffered saline (PBS) injected (MI+PBS, n=8); and MSC transplantation (MI+MSC, n=8). BrdU-labeled MSC or PBS was transplanted into peri-infarct myocardium by direct myocardial injection. At 1 and 28 days post-transplantation, cardiac function was evaluated by echocardiography. Transplanted cells were investigated through immunohistochemistry. Lymphocyte cytotoxic activity was evaluated with the crystal violet method. The activity of NF-kappaB and protein expression of tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-6 and IL-10 in myocardium were assessed by immunohistochemistry and Western blot. RESULTS Echocardiographic examination revealed that the MSC transplantation prevented left ventricular dilation and dysfunction at 28 days after the operation. BrdU-stained cells were found living in host heart 4 weeks after transplantation. MSC transplantation attenuated the cytotoxic activity of spleen lymphocytes. Transplantation of MSC inhibited the activity of NF-kappaB, attenuated the protein production of TNF-alpha and IL-6, and increased the expression of IL-10 in peri-infarct myocardium. DISCUSSION MSC transplantation modulated the immuno-inflammatory response in MI. The immuno-inflammatory regulatory effect of MSC transplantation might partly account for the cardiac protection in myocardial infarction.
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Read WG, Lambert A, Bacmeister J, Cofield RE, Christensen LE, Cuddy DT, Daffer WH, Drouin BJ, Fetzer E, Froidevaux L, Fuller R, Herman R, Jarnot RF, Jiang JH, Jiang YB, Kelly K, Knosp BW, Kovalenko LJ, Livesey NJ, Liu HC, Manney GL, Pickett HM, Pumphrey HC, Rosenlof KH, Sabounchi X, Santee ML, Schwartz MJ, Snyder WV, Stek PC, Su H, Takacs LL, Thurstans RP, Vömel H, Wagner PA, Waters JW, Webster CR, Weinstock EM, Wu DL. Aura Microwave Limb Sounder upper tropospheric and lower stratospheric H2O and relative humidity with respect to ice validation. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2007jd008752] [Citation(s) in RCA: 208] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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192
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Nassimbeni LR, Su H, Weber E. Polymorphism, selectivity and reactivity of inclusion compounds. Acta Crystallogr A 2007. [DOI: 10.1107/s0108767307095645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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193
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Su H, Nassimbeni LR. A bis(hydroxydiphenylmethyl) substituted 1,1′-binaphthyl diol host compound: polymorphism and clathrates with multiple guest species. Acta Crystallogr A 2007. [DOI: 10.1107/s0108767307095633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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194
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Gupta S, Young T, Yel L, Su H, Gollapudi S. Differential sensitivity of naïve and subsets of memory CD4+ and CD8+ T cells to hydrogen peroxide-induced apoptosis. Genes Immun 2007; 8:560-9. [PMID: 17690685 DOI: 10.1038/sj.gene.6364416] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
CD4+ and CD8+ memory T cells are identified into central and effector memory subsets, which are characterized by distinct homing patterns and functions. In this investigation, we show that naïve and central memory CD4+ and CD8+ T cells are sensitive to hydrogen peroxide (H2O2)-induced apoptosis, whereas effector memory CD4+ and CD8+ T cells are relatively resistant to H2O2-induced apoptosis. Apoptosis in naïve and central memory CD4+ and CD8+ is associated with the release of cytochrome c and activation of caspase-9 and caspase-3, upregulation of Bax and voltage-dependent anion channel (VDAC) expression, and decreased intracellular glutathione (GSH). In vitro GSH and a superoxide dismutase mimetic Mn(III) tetrakis (1-methyl-4-pyridyl) porphyrin inhibited H2O2-induced apoptosis in both naïve and central memory CD4+ and CD8+ T cells. Furthermore, VDAC inhibitor 4,4'-diisothiocynostilbene-2,2'-disulfonic acid blocked H2O2-induced apoptosis. These data demonstrate that H2O2 induces apoptosis preferentially in human naïve and central memory CD4+ and CD8+ T cells via the mitochondrial pathway by regulating intracellular GSH and the expression of Bax and VDAC.
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Agrawal A, Agrawal S, Cao JN, Su H, Osann K, Gupta S. Altered innate immune functioning of dendritic cells in elderly humans: a role of phosphoinositide 3-kinase-signaling pathway. THE JOURNAL OF IMMUNOLOGY 2007; 178:6912-22. [PMID: 17513740 DOI: 10.4049/jimmunol.178.11.6912] [Citation(s) in RCA: 267] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Aging represents a state of paradox where chronic inflammation is associated with declining immune responses. Dendritic cells (DCs) are the major APCs responsible for initiating an immune response. However, DC functions in aging have not been studied in detail. In this study, we have compared the innate immune functions of monocyte-derived myeloid DCs from elderly subjects with DCs from young individuals. We show that although phenotypically comparable, DCs from the aging are functionally different from DCs from the young. In contrast to DCs from the young, DCs from elderly individuals display 1) significantly reduced capacity to phagocytose Ags via macropinocytosis and endocytosis as determined by flow cytometry; 2) impaired capacity to migrate in vitro in response to the chemokines MIP-3beta and stromal cell-derived factor-1; and 3) significantly increased LPS and ssRNA-induced secretion of TNF-alpha and IL-6, as determined by ELISA. Investigations of intracellular signaling revealed reduced phosphorylation of AKT in DCs from the aging, indirectly suggesting decreased activation of the PI3K pathway. Because the PI3K-signaling pathway plays a positive regulatory role in phagocytosis and migration, and also functions as a negative regulator of TLR signaling by inducing activation of p38 MAPK, this may explain the aberrant innate immune functioning of DCs from elderly subjects. Results from real-time PCR and protein expression by flow cytometry demonstrated an increased expression of phosphatase and tensin homolog, a negative regulator of the PI3K-signaling pathway, in DCs from the aging. Increased phosphatase and tensin homolog may thus be responsible for the defect in AKT phosphorylation and, therefore, the altered innate immune response of DCs from elderly humans.
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Agrawal A, Agrawal S, Cao JN, Su H, Gupta S. Aberrant Innate Immune Functions of Dendritic Cells in Aged Humans (85.12). THE JOURNAL OF IMMUNOLOGY 2007. [DOI: 10.4049/jimmunol.178.supp.85.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
The molecular mechanisms underlying the chronic inflammation and reduced immunity observed during aging are not well understood. Comparison of the innate immune functions of monocyte-derived DCs from aging subjects with DCs from young individuals showed that MDDCs from aging individuals display
significantly reduced capacity to capture antigens via macropinocytosis and receptor-mediated endocytosis as determined by flow cytometry;impaired capacity to migrate in vitro in response to the chemokine MIP3-beta; andsignificantly increased LPS induced secretion of TNF-alpha and IL-6.
Investigations of intracellular signaling revealed reduced phosphorylation of AKT in MDDCs from aging, suggesting decreased activation of PI3kinase signaling pathway. Since PI3K signaling pathway plays a positive regulatory role in phagocytosis and migration, and it also functions as a negative regulator of TLR signaling by inducing activation of p38 MAP kinase, this may explain the aberrant innate immune functioning of DCs from aged subjects. Results further revealed an increased expression of PTEN, a negative regulator of PI3Kinase signaling pathway, in MDDCs from aged subjects. Increased PTEN may thus be responsible for the defect in AKT phosphorylation and therefore, altered innate immune response of DCs from aged humans.
This study is supported in part by a grant AG027512 from NIH and partly by new scholar grant from the Ellison Medical Foundation.
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Lei F, Zhang XN, Wang W, Xing DM, Xie WD, Su H, Du LJ. Evidence of anti-obesity effects of the pomegranate leaf extract in high-fat diet induced obese mice. Int J Obes (Lond) 2007; 31:1023-9. [PMID: 17299386 DOI: 10.1038/sj.ijo.0803502] [Citation(s) in RCA: 184] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To investigate the anti-obesity effects of the pomegranate leaf extract (PLE) in a mouse model of high-fat diet induced obesity and hyperlipidemia. DESIGN For the anti-obesity experiment, male and female ICR mice were fed with a high-fat diet to induce obesity. When the weight of the high-fat diet group was 20% higher than the normal diet group, the animals were treated with 400 or 800 mg/kg/day of PLE for 5 weeks. Body weight and daily food intake were measured regularly during the experimental period. The various adipose pads were weighed and serum total cholesterol (TC), triglyceride (TG), glucose and high-density lipoprotein cholesterol (HDL-C) were measured after 5 weeks, treatment with PLE. In the fat absorption experiment, both the normal and obese mice were given 0.5 ml lipid emulsion and PLE at a dose of 800 mg/kg at the same time. Serial serum TG levels were measured at times 1, 2, 3, 4 and 6 h after the treatment. TGs in fecal excretions were measured after the mice were orally given a lipid emulsion. Effects of PLE and its isolated compounds (ellagic acid and tannic acid) on pancreatic lipase activity were examined in vitro. RESULTS The PLE-treated groups showed a significant decrease in body weight, energy intake and various adipose pad weight percents and serum, TC, TG, glucose levels and TC/HDL-C ratio after 5 weeks treatment. Furthermore, PLE significantly attenuated the raising of the serum TG level and inhibited the intestinal fat absorption in mice given a fat emulsion orally. PLE showed a significant difference in decreasing the appetite of obese mice fed a high-fat diet, but showed no effect in mice fed a normal diet. CONCLUSION PLE can inhibit the development of obesity and hyperlipidemia in high-fat diet induced obese mice. The effects appear to be partly mediated by inhibiting the pancreatic lipase activity and suppressing energy intake. PLE may be a novel appetite suppressant that only affects obesity owing to a high-fat diet.
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Baysan A, Yel L, Gollapudi S, Su H, Gupta S. Arsenic trioxide induces apoptosis via the mitochondrial pathway by upregulating the expression of Bax and Bim in human B cells. Int J Oncol 2007; 30:313-8. [PMID: 17203211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
Arsenic trioxide (As2O3) has been approved for the treatment of acute promyelocytic leukemia (APML) and it is a promising candidate for the treatment of patients with lymphoproliferative disorders, such as relapsed or refractory multiple myeloma and myelodysplastic syndromes. The effects of As2O3 on B cells, specifically which do not express Bcl-2, have not been studied. In this study, we have demonstrated that As2O3, at clinically achievable therapeutic concentrations, induces apoptosis in Bcl-2 negative human B cell line Ramos. As2O3-induced apoptosis is associated with reduced mitochondrial transmembrane potential (delta psi), enhanced generation of intracellular reactive oxygen species (ROS), release of cytochrome c and apoptosis-inducing factor (AIF) from mitochondria into cytoplasm, activation of caspases, and upregulation of Bax and Bim expression. Exogenous glutathione (GSH) reverses the As2O3-induced apoptosis in a dose-dependent manner. Altogether, these data indicate that As2O3 induces apoptosis in B cells, regardless of Bcl-2 expression, via the mitochondrial pathway by enhancing oxidative stress.
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Xu XG, Su H, Bushart S. The EPRI EDE calculator--a software package for assessing effective dose equivalent from hot particles on the skin. HEALTH PHYSICS 2006; 91:373-8. [PMID: 16966881 DOI: 10.1097/01.hp.0000221461.88395.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Whole body exposure from photon-emitting hot particles is receiving new attention because of changes in skin dose regulations. A recent study calculated and tabulated effective dose equivalent (EDE) and effective dose (ED) for photon energies between 0.1 MeV and 2 MeV for point sources at 74 locations on the skin. This technical note describes a software package called the EPRI EDE Calculator that allows a user to input exposure data and to calculate the EDE and ED automatically.
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Su H, Nassimbeni LR. Inclusion properties of quinolines by a diol host compound. Acta Crystallogr A 2006. [DOI: 10.1107/s010876730609547x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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