451
|
|
452
|
Zhang J, Marks L, Yin F. Enhance Soft Tissue Contrast for Cone Beam CT. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
453
|
Kasibhalta M, Yoo S, Yin F, Godfrey D, Oldham M, Das S. Assessment of Setup Accuracy for Prostate Radiotherapy using On-board Imaging and Cone Beam Computed Tomography. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.903] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
454
|
Das S, Zhou S, Kocak Z, Yin F, Marks L. Improved Prediction of Radiation Pneumonitis using Multiple Additive Regression Trees. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
455
|
Yuan H, Wang Z, Schroeder T, Bowsher J, Hedlund L, Yin F, Dewhirst M. (64) Cu-ATSM microPET Imaging of Tumor Hypoxia in Mammary Tumor Model: Compartmental Modeling and Immunohistochemistry Analysis. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
456
|
Willett C, Wang Z, Marks L, Raidy T, Kelly K, Oldham M, Das S, Zhou S, Kasibhalta M, Yin F. Combining Cardiac/Respiratory Gating to Minimize the Organ Motion Effect. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.940] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
457
|
Yin F, Sun X, Yan H. Case Studies Using an AI-Guided Inverse Planning System. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
458
|
Godfrey D, Oldham M, Dobbins J, Yin F. Online Digital Tomosynthesis (DTS): A Novel Technique for Improving Target Localization in Radiation Therapy. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
459
|
Kim J, Hammoud R, Yin F, Zhao Y, Kim J, Movsas B. Comparisons of Six Similarity Measure Functions for Intensity-based 3D/2D Image Fusion. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
460
|
Zhou S, Das S, Wang Z, Yan H, Yin F, Marks L. Extrapolating Organ Motion Margin for Radiation Fields from Sequential Patient Images. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
461
|
Jin J, Ajlouni M, Chen Q, Yin F, Movsas B. P-724 4D-CT and PET based treatment planning for fractionatedstereotactic lung radiosurgery. Lung Cancer 2005. [DOI: 10.1016/s0169-5002(05)81217-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
462
|
Guan H, Hammoud R, Pradhan D, Yin F, Kim J, Ajlouni M, Movsas B. SU-FF-T-61: A Pseudo-Tangential IMRT Technique for the Whole Large Left Breast Radiation Therapy Using Helios/Eclipse System. Med Phys 2005. [DOI: 10.1118/1.1997732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
463
|
Yoo S, Hammoud R, Yin F, Guan H, Pradhan D, Movsas B. SU-FF-T-212: Quality Assurance (QA) Procedure of On-Board Imager (OBI) for Portal Imaging. Med Phys 2005. [DOI: 10.1118/1.1997940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
464
|
Wang Z, Yuan H, Willett C, Dewhirst M, Yin F. SU-EE-A4-04: Compartment Modeling Analysis of Cu-ATSM Dynamic PET Images. Med Phys 2005. [DOI: 10.1118/1.1997468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
465
|
Guan H, Yan H, Yin F, Kim J, Keall P, Vedam S, Movsas B. SU-FF-J-70: Respiratory Gated Radiation Therapy Directly Using Patient's Fluoroscopic Images Instead of External Or Internal Markers. Med Phys 2005. [DOI: 10.1118/1.1997616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
466
|
Hammoud R, Yin F, Yoo S, Guan H, Pradhan D, Ajlouni M, Movsas B. SU-FF-J-80: Clinical Procedures for Daily Patient Setup Verification Using On-Board Imager (OBI). Med Phys 2005. [DOI: 10.1118/1.1997626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
467
|
Das S, Yin F. WE-D-T-6E-02: A Clinical Planning Tool for Optimization of Intensity Modulated Radiotherapy Parameters. Med Phys 2005. [DOI: 10.1118/1.1998571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
468
|
Hammoud R, Guan H, Yin F, Pradhan D, Movsas B. SU-FF-T-190: Daily Quality Assurance (QA) Procedure of On-Board Imager (OBI). Med Phys 2005. [DOI: 10.1118/1.1997918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
469
|
Yoo S, Yin F, Ajlouni M, Movsas B. SU-FF-T-186: Commissioning of Tissue Inhomogeneity Correction of Eclipse Radiation Treatment Planning System Using a Lung Phantom. Med Phys 2005. [DOI: 10.1118/1.1997867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
470
|
Godfrey D, Oldham M, Dobbins J, Yin F. SU-FF-J-57: Digital Tomosynthesis for Verification of Radiation Therapy Positioning: Preliminary Results From a Kilovoltage On-Board Imaging System. Med Phys 2005. [DOI: 10.1118/1.1997603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
471
|
Wang Z, Yin F, Raidy T, Kelly K, Oldham M, Das S, Zhou S, Marks L, Kasibhatla M, Willett C. SU-FF-J-30: Quantification of Normal Organ Motion Due to the Respiratory and Cardiac Cycles. Med Phys 2005. [DOI: 10.1118/1.1997576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
472
|
Yin F, Guan H, Hammoud R, Ajlouni M, Pradhan D, Kim J. Full 3-D treatment verification using an aggregated kV/MV cone-beam CT technique. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.06.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
473
|
Jin J, Yin F, Ryu S, Ajlouni M, Kim J. Quantitative dosimetric study using different leaf-width multileaf collimators for treatment planning of dynamic conformal and intensity-modulated radiosurgery. Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
474
|
Tsuda S, Yokoya T, Takano Y, Kito H, Matsushita A, Yin F, Itoh J, Harima H, Shin S. Definitive experimental evidence for two-band superconductivity in MgB2. PHYSICAL REVIEW LETTERS 2003; 91:127001. [PMID: 14525389 DOI: 10.1103/physrevlett.91.127001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2003] [Indexed: 05/24/2023]
Abstract
The superconducting-gap of MgB2 has been studied by high-resolution angle-resolved photoemission spectroscopy. The results show that superconducting gaps with values of 5.5 and 2.2 meV open on the sigma band and the pi band, respectively, but both the gaps close at the bulk transition temperature, providing a definitive experimental evidence for the two-band superconductivity with strong interband pairing interaction in MgB2. The experiments validate the role of k-dependent electron-phonon coupling as the origin of multiple-gap superconductivity as well as the high transition temperature of MgB2.
Collapse
|
475
|
Wei Z, Yin F, Li L, Wei X, Liu X. Study of Pt/C and Pt–Fe/C catalysts for oxygen reduction in the light of quantum chemistry. J Electroanal Chem (Lausanne) 2003. [DOI: 10.1016/s0022-0728(02)01430-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
476
|
Yin F, Yang Y, Yu P. [Effect of pertussis bacilli on the release of excitatory amino acids in brain slice of rats]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2002; 24:510-2. [PMID: 12080707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
OBJECTIVE To investigate the effect of pertussis bacilli on the release of excitatory amino acids (EAAs) in rat-brain slice and to know whether MK-801(dizocipine) protects brain tissue from excitotoxicity. METHODS SD rats were randomly divided into 3 groups: 1. Normal slice cultured group(NC); 2. 10% pertussis bacilli(PB) slice cultured group(PBC); 3. 10% PB slice cultured group after pretreatment with MK-801. The release of EAAs from brain slices was measured by high performance liquid chromatography. RESULTS The concentrations of glutamate(Glu 29.53 +/- 8.00), aspartate(Asp 23.74 +/- 5.79) and LDH(38.03 +/- 8.45) were significantly higher in PBC group than those(Glu 16.46 +/- 4.00, Asp 15.27 +/- 5.31, LDH 23.10 +/- 5.11) in MPBC group and (Glu 16.09 +/- 3.74, Asp 11.47 +/- 2.51, LDH 25.82 +/- 4.50) NC group. CONCLUSION Pertussis bacilli may elicit a large increase of extracellular EAAs and LDH in vitro, while MK-801 protects brain tissue from excitotoxicity.
Collapse
|
477
|
Wakino S, Kintscher U, Liu Z, Kim S, Yin F, Ohba M, Kuroki T, Schönthal AH, Hsueh WA, Law RE. Peroxisome proliferator-activated receptor gamma ligands inhibit mitogenic induction of p21(Cip1) by modulating the protein kinase Cdelta pathway in vascular smooth muscle cells. J Biol Chem 2001; 276:47650-7. [PMID: 11598137 DOI: 10.1074/jbc.m108719200] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The cyclin-dependent kinase inhibitor p21(Cip1) is up-regulated in response to mitogenic stimulation in various cells. PPARgamma ligands troglitazone (TRO, 10 microm) and rosiglitazone (RSG, 10 microm) attenuated the induction of p21(Cip1) protein by platelet-derived growth factor (PDGF) and insulin without affecting cognate mRNA levels in rat aortic smooth muscle cells (RASMC). The protein kinase Cdelta (PKCdelta) inhibitor rottlerin also blocked the induction of p21(Cip1) protein, whereas the conventional PKC isotype inhibitor Gö 6976 had no effect. Kinetic studies using the protein synthesis inhibitor cycloheximide showed that TRO, RSG, and rottlerin shortened the half-life of p21(Cip1) protein. TRO, RSG, and rottlerin inhibited PDGF-induced expression of p21(Cip1), but they did not affect insulin-induced expression of p21(Cip1). Both ligands inhibited PKCdelta enzymatic activity in PDGF-stimulated RASMC but not in insulin-stimulated cells. Adenovirus-mediated overexpression of PKCdelta rescued the down-regulation of p21(Cip1) expression both by TRO and RSG in PDGF-treated RASMC. These data suggested that the PKCdelta pathway plays a critical role in PDGF-induced expression of p21(Cip1) in RASMC and may be the potential target for PPARgamma ligand effects. Src kinase-dependent tyrosine phosphorylation of PKCdelta was decreased substantially by TRO and RSG. Tyrosine phosphorylation and activation of c-Src in response to PDGF were unaffected by either PPARgamma ligand. Protein-tyrosine-phosphatase inhibitors sodium orthovanadate and dephostatin prevented PPARgamma ligand effects on PKCdelta tyrosine phosphorylation and enzymatic activity. Both inhibitors also reversed PPARgamma ligand effects on p21(Cip1) expression in PDGF-treated RASMC. PPARgamma ligands enhanced protein-tyrosine-phosphatase activity in RASMC, which may be the mechanism for decreased PKCdelta tyrosine phosphorylation and activity. PPARgamma ligands regulate p21(Cip1) at a post-translational level by blocking PKCdelta signaling and accelerating p21(Cip1) turnover.
Collapse
MESH Headings
- Acetophenones/pharmacology
- Adenoviridae/genetics
- Animals
- Aorta, Thoracic/cytology
- Apoptosis
- Benzopyrans/pharmacology
- Blotting, Western
- Carbazoles/pharmacology
- Cell Division
- Cells, Cultured
- Chromans/pharmacology
- Cyclin-Dependent Kinase Inhibitor p21
- Cyclins/metabolism
- Cycloheximide/pharmacology
- Dose-Response Relationship, Drug
- Down-Regulation
- Enzyme Inhibitors/pharmacology
- Hydroquinones/pharmacology
- Indoles/pharmacology
- Insulin/metabolism
- Isoenzymes/metabolism
- Kinetics
- Ligands
- Mice
- Mitogens/pharmacology
- Models, Biological
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/enzymology
- Phosphorylation
- Platelet-Derived Growth Factor/pharmacology
- Precipitin Tests
- Protein Kinase C/metabolism
- Protein Kinase C-delta
- Protein Processing, Post-Translational
- Protein Synthesis Inhibitors/pharmacology
- Protein Tyrosine Phosphatases/antagonists & inhibitors
- RNA/metabolism
- Rats
- Rats, Sprague-Dawley
- Receptors, Cytoplasmic and Nuclear/metabolism
- Recombinant Proteins/metabolism
- Rosiglitazone
- Signal Transduction
- Thiazoles/pharmacology
- Thiazolidinediones
- Time Factors
- Transcription Factors/metabolism
- Troglitazone
- Tyrosine/metabolism
- Up-Regulation
- Vanadates/pharmacology
Collapse
|
478
|
Yin F, Wakino S, Liu Z, Kim S, Hsueh WA, Collins AR, Van Herle AJ, Law RE. Troglitazone inhibits growth of MCF-7 breast carcinoma cells by targeting G1 cell cycle regulators. Biochem Biophys Res Commun 2001; 286:916-22. [PMID: 11527386 DOI: 10.1006/bbrc.2001.5491] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Peroxisome proliferator activated receptor gamma (PPARgamma) is a member of the nuclear receptor superfamily. Ligand activation of PPARgamma has been shown to cause growth arrest in several human tumor cell types, but the underlying molecular mechanism has not been elucidated. We report here that the PPARgamma ligand troglitazone (TRO) inhibited MCF-7 cell proliferation by blocking events critical for G1 --> S progression. Flow cytometry demonstrated that TRO at 20 microM increased the percentage of cells in G1 from 51 to 69% after 24 h. Accumulation of cells in G1 was accompanied by an attenuation of Rb protein phosphorylation associated with decreased CDK4 and CDK2 activities. Inhibition of CDK activity by TRO correlates with decreased protein levels for several G1 regulators of Rb phosphorylation (cyclin D1, and CDKs 2, 4, and 6). Overexpression of cyclin D1 partially rescued MCF-7 cells from TRO-mediated G1 arrest. Targeting of G1 regulatory proteins, particularly cyclin D1, and the resulting induction of G1 arrest by TRO may provide a novel antiproliferative therapy for human breast cancer.
Collapse
|
479
|
Wakino S, Kintscher U, Kim S, Jackson S, Yin F, Nagpal S, Chandraratna RA, Hsueh WA, Law RE. Retinoids inhibit proliferation of human coronary smooth muscle cells by modulating cell cycle regulators. Arterioscler Thromb Vasc Biol 2001; 21:746-51. [PMID: 11348869 DOI: 10.1161/01.atv.21.5.746] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Retinoids inhibit rat vascular smooth muscle cell (VSMC) proliferation in vitro and intimal hyperplasia in vivo. We examined the mechanism of the antiproliferative effect of retinoids on human coronary artery smooth muscle cells (human CASMCs). The RAR ligands all-trans-retinoic acid (atRA) and ethyl-p-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthyl)-l-propenyl]-benzoic acid (TTNPB); a pan-RXR/RAR agonist, 9-cis-retinoic acid (9cRA); and the RXR-selective ligand AGN4204 all inhibited DNA synthesis stimulated with platelet-derived growth factor and insulin (IC(50): TTNPB 63 nmol/L, atRA 120 nmol/L, AGN4204 460 nmol/L, 9cRA 1.5 micromol/L). All retinoids blocked cell cycle progression as determined by flow cytometry and inhibited retinoblastoma protein (Rb) phosphorylation. TTNPB, atRA, and AGN4204 inhibited the mitogenic induction of cyclin D1, whereas 9cRA had no effect. None of the retinoids affected the expression of CDK 2, 4, or 6 or cyclin E. All retinoids attenuated mitogen-induced downregulation of CDKI p27(Kip1), a major negative regulator of Rb phosphorylation, partly through stabilizing p27(Kip1) turnover. These data demonstrate that retinoids have antiproliferative activity by modulating G(1) --> S cell cycle regulators in human CASMCs through inhibition of Rb phosphorylation and elevation of p27(Kip1) levels.
Collapse
|
480
|
|
481
|
Yin F, Kim JG, Haughton C, Brown SL, Ajlouni M, Stronati M, Pamukov N, Kim JH. Extracranial radiosurgery: immobilizing liver motion in dogs using high-frequency jet ventilation and total intravenous anesthesia. Int J Radiat Oncol Biol Phys 2001; 49:211-6. [PMID: 11163517 DOI: 10.1016/s0360-3016(00)01370-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
PURPOSE Extracranial radiosurgery requires control of organ motion. The purpose of this study is to quantitatively determine the extent of liver motion in anesthetized dogs with continuous i.v. propofol infusion with or without muscle relaxants and high-frequency jet ventilation. METHODS AND MATERIALS Five dogs were used in the experiment. Each dog was restrained while anesthetized in the supine position using an alpha cradle. Surgical metal clips were implanted around the liver periphery so that its motion could be visualized using a fluoroscopic imaging device in a conventional simulator. Initially, two orthogonal simulation films were taken to correlate locations of implanted clips. Two orthogonal views of fluoroscopic images for each anesthetized dog were recorded on a magnetic tape and analyzed from the post-imaging data. Liver motion was documented under the following three conditions: 1) ventilated with a conventional mechanical ventilator, 2) ventilated with a high-frequency jet ventilator, and 3) ventilated with a high-frequency jet ventilator and total muscle paralysis (with vecuronium injection). The maximum liver motion for each dog was analyzed in three orthogonal directions: the inferior-to-superior direction, the anterior-to-posterior direction, and the right-to-left direction. RESULTS When the anesthetized dogs were ventilated with a conventional mechanical ventilator, the average liver motions were 1.2 cm in the inferior-to-superior direction, 0.4 cm in the anterior-to-posterior direction, and 0.2 cm in the right-to-left direction, respectively. After the introduction of high-frequency jet ventilation, the average liver motions were reduced to 0.2 cm in the inferior-to-superior direction, 0.2 cm in the anterior-to-posterior direction, and 0.1 cm in the right-to-left direction. The maximum liver motion was dependent on ventilator settings. There was no additional measurable motion reduction with the addition of the muscle relaxant. CONCLUSION The liver motion in each anesthetized dog was controlled under 3.0 mm in all directions with the use of high-frequency jet ventilation. No detectable advantage was identified by the injection of muscle relaxant in terms of further reducing the liver motion. The preclinical animal study indicated that the use of high-frequency jet ventilation (HFJV) would be able to limit the liver motion to an extent acceptable for the application of extracranial radiosurgery in humans. Radiosurgery for localized liver tumors warrants further investigation.
Collapse
|
482
|
Yin F, Giuliano AE, Law RE, Van Herle AJ. Apigenin inhibits growth and induces G2/M arrest by modulating cyclin-CDK regulators and ERK MAP kinase activation in breast carcinoma cells. Anticancer Res 2001; 21:413-20. [PMID: 11299771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
We have previously reported that apigenin inhibits the growth of thyroid cancer cells by attenuating epidermal growth factor receptor (EGF-R) tyrosine phosphorylation and phosphorylation of ERK mitogen-activated protein (MAP) kinase. In this study, we assessed the growth inhibitory effect of apigenin on MCF-7 breast carcinoma cells that express two key cell cycle regulators, wild-type p53 and the retinoblastoma tumor suppressor protein (Rb), and MDA-MB-468 breast carcinoma cells that are mutant for p53 and Rb negative. We found that apigenin potently inhibited growth of both MCF-7 and MDA-MB-468 breast carcinoma cells. The approximate IC50 values determined after 3 days incubation, were 7.8 micrograms/ml for MCF-7 cells, and 8.9 micrograms/ml for MDA-MB-468 cells, respectively. Because the cell cycle studies using FACS showed that both MCF-7 and MDA-MB-468 cells were arrested in G2/M phase after apigenin treatment, we studied the effects of apigenin on cell cycle regulatory molecules. We observed that G2/M arrest by apigenin involved a significant decrease in cyclin B1 and CDK1 protein levels, resulting in a marked inhibition of CDK1 kinase activity. Apigenin reduced the protein levels of CDK4, cyclins D1 and A, but did not affect cyclin E, CDK2 and CDK6 protein expression. In MCF-7 cells, apigenin markedly reduced Rb phosphorylation after 12 h. We also found that apigenin treatment resulted in a dose- and time-dependent inhibition of ERK MAP kinase phosphorylation and activation in MDA-MB-468 cells. These results suggest that apigenin is a promising antibreast cancer agent and its growth inhibitory effects are mediated by targeting different signal transduction pathways in MCF-7 and MDA-MB-468 breast carcinoma cells.
Collapse
|
483
|
Yin F, Yang YJ, Liu CQ. [Comparison of infectious brain edema models induced by different kinds of pertussis bacilli in rats]. HUNAN YI KE DA XUE XUE BAO = HUNAN YIKE DAXUE XUEBAO = BULLETIN OF HUNAN MEDICAL UNIVERSITY 2000; 25:573-5. [PMID: 12516409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To understand the difference of infectious brain edema models induced by varied kinds of pertussis bacilli in rats and to look for a new infectious brain edema model. METHODS Sprague-Dawley rats were randomly divided into 3 groups: normal saline group(NS); rude pertussis bacilli(PBR); purified pertussis bacilli(PBP). After infectious brain edema model was induced by rude pertussis bacilli or purified pertussis bacilli, the water content(WC), Evan's blue content(EB), Na+ and K+ content in brain tissues were measured. RESULTS The WC, EB and Na+ contents in brain tissues in PBR and PBP groups were significantly increased than those in NS group; K+ content was significantly decreased in PBR and PBP groups than that in NS group(P < 0.01). Evan's blue discoloration was demonstrated in all rats of PBR group, but 6 rats of PBP group showed bluish discoloration. EB content in brain tissues was significantly increased in PBR group than that in PBP group. CONCLUSIONS The infectious brain edema model can be induced by rude pertussis bacilli or purified pertussis bacilli in rats, the former gives priority to mixed brain edema, and the latter mainly avails cytotoxin brain edema.
Collapse
|
484
|
Wakino S, Kintscher U, Kim S, Yin F, Hsueh WA, Law RE. Peroxisome proliferator-activated receptor gamma ligands inhibit retinoblastoma phosphorylation and G1--> S transition in vascular smooth muscle cells. J Biol Chem 2000; 275:22435-41. [PMID: 10801895 DOI: 10.1074/jbc.m910452199] [Citation(s) in RCA: 177] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Peroxisome proliferator-activated receptor gamma (PPARgamma) is a member of the nuclear receptor superfamily that is activated by binding certain fatty acids, eicosanoids, and insulin-sensitizing thiazolidinediones (TZD). The TZD troglitazone (TRO) inhibits vascular smooth muscle cell proliferation and migration both in vitro and in vivo. The precise mechanism of its antiproliferative activity, however, has not been elucidated. We report here that PPARgamma ligands inhibit rat aortic vascular smooth muscle cell proliferation by blocking the events critical for G(1) --> S progression. Flow cytometry demonstrated that both TRO and another TZD, rosiglitazone, prevented G(1) --> S progression induced by platelet-derived growth factor and insulin. Movement of cells from G(1) --> S was also inhibited by the non-TZD, natural PPARgamma ligand 15-deoxy-(12,14)Delta prostaglandin J(2) (15d-PGJ(2)), and the mitogen-activated protein kinase pathway inhibitor PD98059. Inhibition of G(1) --> S exit by these compounds was accompanied by a substantial blockade of retinoblastoma protein phosphorylation. TRO and rosiglitazone attenuated both the mitogen-induced degradation of p27(kip1) and the mitogenic induction of p21(cip1). 15d-PGJ(2) and PD98059 inhibited both the degradation of p27(kip1) and the induction of cyclin D1 in response to mitogens. These effects resulted in the inhibition of mitogenic stimulation of cyclin-dependent kinases activated by cyclins D1 and E. These data demonstrate that PPARgamma ligands are antiproliferative drugs that act by modulating cyclin-dependent kinase inhibitors; they may provide a new therapeutic approach for proliferative vascular diseases.
Collapse
|
485
|
Yin F, Yang Y, Yu P. [Changes of glutamate and gamma-aminobutyric acid contents in brain tissue of brain edema and effects of baicalin on them in rats]. ZHONGGUO ZHONG XI YI JIE HE ZA ZHI ZHONGGUO ZHONGXIYI JIEHE ZAZHI = CHINESE JOURNAL OF INTEGRATED TRADITIONAL AND WESTERN MEDICINE 2000; 20:524-6. [PMID: 11789212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To observe the changes of glutamates (Glu) and gamma-aminobutyric acid (GABA) contents in brain tissue of infectious brain edema, and effects of baicalin on them in rats. METHODS The high performance liquid chromatography (HPLC) was used to determine the Glu and GABA contents in homogenized brain tissue after baicalin was injected intraperitoneally on infectious brain edema induced by pertussis bacilli in rats. RESULTS Glu contents of homogenized brain tissue in blank control group (C), normal saline group (NS), pertussis bacilli group (PB) and baicalin group (BC) had no significant difference (P > 0.05). The concentration of GABA was more significantly increased in the BC group (4.06 +/- 0.52) than that in the PB group (2.71 +/- 0.29) (P < 0.05). Water content of brain was reduced in the BC group (79.8 +/- 0.4) as compared with the PB group (82.2 +/- 0.3)(P < 0.01). CONCLUSION Baicalin has a protective effect against the pertussis bacilli-induced brain edema in rats, and protective effect was correlated to the increased content of GABA in the brain tissue in rats.
Collapse
|
486
|
Wild CP, Yin F, Turner PC, Chemin I, Chapot B, Mendy M, Whittle H, Kirk GD, Hall AJ. Environmental and genetic determinants of aflatoxin-albumin adducts in the Gambia. Int J Cancer 2000. [PMID: 10728587 DOI: 10.1002/(sici)1097-0215(20000401)86:1<1::aid-ijc1>3.0.co;2-i] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Aflatoxins together with chronic hepatitis B virus (HBV) infection contribute to the high incidence of hepatocellular carcinoma in developing countries. An understanding of the mechanism of interaction between these factors would provide a strong rationale for developing effective prevention strategies. In this study in The Gambia we examined the effect of environmental (place of residence and timing of sample collection) and host factors (age, sex, HBV status and interindividual variations in carcinogen metabolising enzymes) in determining blood aflatoxin-albumin adduct levels in 357 individuals of whom 181 were chronic HBV carriers. Samples were analysed for aflatoxin-albumin adducts, HBV status and genotypes of glutathione S-transferase (GST) M1, GSTT1, GSTP1 and epoxide hydrolase (EPXH). Urine samples were analysed for 6beta-hydroxycortisol:cortisol ratio as a marker of cytochrome P450 (CYP) 3A4 activity. Adduct levels were significantly higher in subjects resident in rural [geometric mean adduct level 34.9 pg aflatoxin B1-lysine equivalent (28.5-42.8; 95%CI)/mg albumin] than in periurban areas [22.2 pg (14.9-33.4)/mg] and were approximately twice as high in the dry season [mid-February to March; 83.2 pg (53.3-130.8)/mg] than the wet [July to August; 34.9 pg (28.5-42.8)/mg]. In contrast, HBV status, CYP3A4 phenotype, GSTT1, GSTP1 and EPXH genotypes were not associated with aflatoxin-albumin adduct level. However, mean adduct levels were significantly higher in non-HBV infected subjects with GSTM1 null genotype. The main factors which affect aflatoxin-albumin adduct levels in this population are environmental, notably place of residence and timing of sample collection. This study further emphasises the priority to reduce aflatoxin exposure in these communities by primary prevention measures.
Collapse
|
487
|
Wild CP, Yin F, Turner PC, Chemin I, Chapot B, Mendy M, Whittle H, Kirk GD, Hall AJ. Environmental and genetic determinants of aflatoxin-albumin adducts in the Gambia. Int J Cancer 2000; 86:1-7. [PMID: 10728587 DOI: 10.1002/(sici)1097-0215(20000401)86:1<1::aid-ijc1>3.0.co;2-i] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Aflatoxins together with chronic hepatitis B virus (HBV) infection contribute to the high incidence of hepatocellular carcinoma in developing countries. An understanding of the mechanism of interaction between these factors would provide a strong rationale for developing effective prevention strategies. In this study in The Gambia we examined the effect of environmental (place of residence and timing of sample collection) and host factors (age, sex, HBV status and interindividual variations in carcinogen metabolising enzymes) in determining blood aflatoxin-albumin adduct levels in 357 individuals of whom 181 were chronic HBV carriers. Samples were analysed for aflatoxin-albumin adducts, HBV status and genotypes of glutathione S-transferase (GST) M1, GSTT1, GSTP1 and epoxide hydrolase (EPXH). Urine samples were analysed for 6beta-hydroxycortisol:cortisol ratio as a marker of cytochrome P450 (CYP) 3A4 activity. Adduct levels were significantly higher in subjects resident in rural [geometric mean adduct level 34.9 pg aflatoxin B1-lysine equivalent (28.5-42.8; 95%CI)/mg albumin] than in periurban areas [22.2 pg (14.9-33.4)/mg] and were approximately twice as high in the dry season [mid-February to March; 83.2 pg (53.3-130.8)/mg] than the wet [July to August; 34.9 pg (28.5-42.8)/mg]. In contrast, HBV status, CYP3A4 phenotype, GSTT1, GSTP1 and EPXH genotypes were not associated with aflatoxin-albumin adduct level. However, mean adduct levels were significantly higher in non-HBV infected subjects with GSTM1 null genotype. The main factors which affect aflatoxin-albumin adduct levels in this population are environmental, notably place of residence and timing of sample collection. This study further emphasises the priority to reduce aflatoxin exposure in these communities by primary prevention measures.
Collapse
|
488
|
Lin Y, Zhang JB, Yin F, Xiao XR. Interfacial Charge Transfer Behaviors of Nanoparticulate CdSe Thin Film Electrodes. Z PHYS CHEM 1999. [DOI: 10.1524/zpch.1999.213.part_1.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
489
|
Yin F, Giuliano AE, Van Herle AJ. Signal pathways involved in apigenin inhibition of growth and induction of apoptosis of human anaplastic thyroid cancer cells (ARO). Anticancer Res 1999; 19:4297-303. [PMID: 10628390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Recently we demonstrated that several flavonoids can inhibit the proliferation of certain human thyroid cancer cell lines. Among the flavonoids tested, apigenin and luteolin are the most effective inhibitors of these tumor cell lines. In the present study, we investigated the signal transduction mechanism associated with the growth inhibitory effect of apigenin, using a human anaplastic thyroid carcinoma cell line, ARO (UCLA RO-81-A-1). Using Western blot method, it was shown that the inhibitory effect of apigenin on ARO cell proliferation is associated with an inhibition of both EGFR tyrosine autophosphorylation and phosphorylation of its downstream effector mitogen activated protein (MAP) kinase. Protein levels of these signaling molecules were not affected. The inhibitor of phosphorylation by apigenin occurred within 30 min and continued for 4 h. A dose-dependent inhibition was demonstrable ranging from 12.5 microM to 50 microM. The level of phosphorylated c-Myc, a nuclear substrate for MAPK, was depressed from 16-48 h after apigenin treatment, finally leading to a programmed cell death involving DNA fragmentation. Furthermore, treatment with apigenin resulted in the inhibition of both anchorage-dependent and anchorage-independent thyroid cancer cell growth. In summary, apigenin is a promising inhibitor of signal transduction pathways that regulate the growth (anchorage-dependent and independent) and survival of human anaplastic thyroid cancer cells. Apigenin may provide a new approach for the treatment of human anaplastic thyroid carcinoma for which no effective therapy is presently available.
Collapse
|
490
|
Abstract
Previous studies have indicated that flavonoids exhibit antiproliferative properties on some hormone-dependent cancer cell lines, such as breast and prostate cancer. In the present study, the effects of some selected flavonoids, genistein, apigenin, luteolin, chrysin, kaempferol, and biochanin A on human thyroid carcinoma cell lines, UCLA NPA-87-1 (NPA) (papillary carcinoma), UCLA RO-82W-1 (WRO) (follicular carcinoma), and UCLA RO-81A-1 (ARO) (anaplastic carcinoma) have been examined. Among the flavonoids tested, apigenin and luteolin are the most potent inhibitors of these cell lines with IC50 (concentration at which cell proliferation was inhibited by 50%) values ranging from 21.7 microM to 32.1 microM. The cells were viable at these concentrations. Using NPA cells known to be estrogen receptor positive (ER+), it was shown that no significant [3H]-E2 displacement occurred with these flavonoids at the IC50 concentration. In WRO cells that are known to have an antiestrogen binding site (AEBS), biochanin A caused a stronger inhibitory growth effect (IC50 = 64.1 microM) than in NPA and ARO cells. In addition, it was observed that biochanin A has an appreciable binding affinity for the AEBS as indicated by the displacement of [3H]-tamoxifen from the WRO cells. In summary, flavonoids have potent antiproliferative activity in vitro against various human thyroid cancer cell lines. The inhibitory activity of certain flavonoid compounds may be mediated via the AEBS and/or type II EBS. The observation that ARO cells that lack both the AEBS and the ER are effectively inhibited by apigenin and luteolin suggest that other mechanisms of action are operative as well. The present study suggests that flavonoids may represent a new class of therapeutic agents in the management of thyroid cancer.
Collapse
|
491
|
Yin F, Kim J, Nelson D, Yang Z, Ajlouni M, Kim J. 2272 Automated breast feature extraction in digital portal image for computerized patient positioning verification. Int J Radiat Oncol Biol Phys 1999. [DOI: 10.1016/s0360-3016(99)90540-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
492
|
Yin F, Chen B. Detection of hepatitis C virus RNA sequences in hepatic portal cholangiocarcinoma tissue by reverse transcription polymerase chain reaction. Chin Med J (Engl) 1998; 111:1068-70. [PMID: 11263365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
OBJECTIVE To detect hepatitis C virus (HCV) RNA sequences in the hepatic portal cholangiocarcinoma tissues and their relationship. METHODS RNA was extracted from paraffin-embedded cholangiocarcinoma tissues of 6 patients by guanidinium method, subjected to reverse transcription and then amplified by double PCR technique using nested primers from the highly conserved 5' noncoding region of HCV genome. RESULTS HCV RNA of 5' NT sequences was found in the hepatic portal cholangiocarcinoma tissues of 5 out of 6 (83%) patients. CONCLUSIONS HCV RNA sequences present with high infectious rate in cholangiocarcinoma, and reverse transcription polymerase chain reaction (RT-PCR) assay using primers derived from 5' NT region of HCV sequence is most useful in detecting HCV infection. The development of cholangiocarcinoma awaits further studies.
Collapse
|
493
|
Shan Y, Li L, Yan C, Yin F. Expression of estrogen receptors and progesterone receptors in transitional cell carcinoma of bladder. Chin Med J (Engl) 1998; 111:191-2. [PMID: 10374388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
|
494
|
Yin F, Blumenfeld AL, Gruver V, Fripiat JJ. NH3 as a Probe Molecule for NMR and IR Study of Zeolite Catalyst Acidity. J Phys Chem B 1997. [DOI: 10.1021/jp9618542] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
495
|
Xu W, Fang Z, Wan B, Li J, Luo J, Yin F. [The sawtooth oscillation phenomenon of visible spectral signal in HT-6M Tokamak]. GUANG PU XUE YU GUANG PU FEN XI = GUANG PU 1997; 17:34-39. [PMID: 15810411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The sawtooth oscillation phenomenon of visible spectral signal in HT-6M Tokamak is presented. The influences of electron temperature, electron density and atomic ground density on the spectral signal discussed. This phenomenon results mainly from the change of electron temperature at the edge.
Collapse
|
496
|
Zhang X, Huang C, Yin F. [Evaluation of surgical resection for gastric cancer extending to adjacent organs]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1995; 33:603-5. [PMID: 8731893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
From June 1972 to December 1993, 280 patients underwent surgical resection for their gastric cancer extending to adjacent organs. The patients were divided into three groups. Group A, 93 patients, were treated with gastrectomy plus complete removal of the invaded organs. Group B, 55 patients, underwent gastrectomy with incomplete removal of the invaded organs. Group C, 132 patients underwent gastrectomy only. The 5 year survival rate of each group was 32.7%, 7.7% and 4.4%, respectively. The 5 year survival rate in the group A was significantly higher than that in two other 2 groups (P < 0.05). The 5 year survival rate in the group B and C was similar (P > 0.05). The patients without incurable factors (liver metastasis, peritoneal dissemination and widespread nodal involvement) underwent gastrectomy with complete excision of invaded organs, irrespective of the number or site of invaded organs. On the other hand, the patients with incurable factors should be given palliative gastrectomy only. Because symptoms are alleviated, the quality of life is improved and the survival time is prolonged.
Collapse
|
497
|
Liu C, Yin F, Zhang Z. [Detection of thyroid stimulating antibodies and TSH binding inhibitor immunoglobulins in patients with thyroid diseases and its clinical applications]. ZHONGHUA NEI KE ZA ZHI 1995; 34:105-7. [PMID: 7796654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Thyroid stimulating antibodies (TSAb) and TSH binding inhibitor immunoglobulins (TBII) were assessed in patients with thyroid diseases. The activity of TSAb and TBII was significantly higher in patients with untreated Graves' disease (GD) as compared with that in patients with remitted GD and Hashimoto's thyroiditis, while the latter two groups had higher TSAb and TBII activity than patients with thyroid adenoma or control subjects. Of 24 patients with untreated GD, TSAb and TBII were detected in 22 and 19 respectively. The positive rates of TSAb and TBII in patients with remitted GD or Hashimoto's thyroiditis were 0.48 and 0.44 or 0.231 and 0.615. Both TSAb and TBII were negative in patients with thyroid adenoma or controls. No statistical correlation was found between TSAb and TBII activity, suggesting the coexistence of heterogeneous populations of TSH receptor antibodies.
Collapse
|
498
|
Liu X, Su B, Yin F, Han Q, Hu Z. Relation between age and hair strontium in a population from the Dalian District of China. Clin Chem 1994. [DOI: 10.1093/clinchem/40.12.2324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
499
|
Liu X, Su B, Yin F, Han Q, Hu Z. Relation between age and hair strontium in a population from the Dalian District of China. Clin Chem 1994; 40:2324-5. [PMID: 7988025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
500
|
Huang BX, Lin SQ, Chen SY, Zhou G, Yin F, Lou ZP, Bi MM. Hair chromium levels in patients with vascular diseases. Biol Trace Elem Res 1991; 29:133-7. [PMID: 1713469 DOI: 10.1007/bf03032690] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The chromium levels in the hair of patients with hyperlipemia and coronary heart disease were found to be similar to those of healthy controls (p greater than 0.2). In patients with cerebral hemorrhage and cerebral thrombosis, significantly higher hair chromium values were observed than in healthy subjects (p less than 0.001). The possible significance of these findings is discussed.
Collapse
|