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Wang X, Lin Y, Shen G, Zhang S, Cai M, Yuan H, Yu H, Wang C. Navigation surgery for fibrous dysplasia in the craniomaxillofacial regions. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.448] [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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127
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Wang X, Lin Y, Shen G, Zhang S, Cai M, Yuan H, Yu H, Wang C. Precise temporomandibular joint glenoid fossa reconstruction by self-developed navigation system. Int J Oral Maxillofac Surg 2009. [DOI: 10.1016/j.ijom.2009.03.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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128
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Tang SK, Wang Y, Cai M, Zhi XY, Lou K, Xu LH, Jiang CL, Li WJ. Saccharopolyspora halophila sp. nov., a novel halophilic actinomycete isolated from a saline lake in China. Int J Syst Evol Microbiol 2009; 59:555-8. [DOI: 10.1099/ijs.0.65705-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Li Y, Lin H, Ma M, Li L, Cai M, Zhou N, Han X, Bao H, Huang L, Zhu C, Li C, Yang H, Rao Z, Xiang Y, Cui Z, Ao L, Zhou Z, Xiong H, Cao J. Semen quality of 1346 healthy men, results from the Chongqing area of southwest China. Hum Reprod 2009; 24:459-69. [DOI: 10.1093/humrep/den399] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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130
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Wang Z, Shi BY, Qian YY, Cai M, Wang Q. Short-term anti-CD25 monoclonal antibody administration down-regulated CD25 expression without eliminating the neogenetic functional regulatory T cells in kidney transplantation. Clin Exp Immunol 2009; 155:496-503. [PMID: 19141125 DOI: 10.1111/j.1365-2249.2008.03847.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
CD4(+)CD25(+) forkhead box P3 (FoxP3)(+)regulatory T (T(reg)) cells are generated and play a key role in the induction and maintenance of transplant tolerance in organ recipients. It has been proposed that interleukin (IL)-2/IL-2 receptor (IL-2R) signalling was essential for the development and proliferation of antigen-activated T cells that included both effector T cells and T(reg) cells. Basiliximab (Simulect), a chimeric monoclonal antibody directed against the alpha-chain of the IL-2R (CD25), can be expected to not only affect alloreactive effector T cells, but also reduce the number and function of T(reg) cells. We therefore examined the effect of basiliximab induction therapy on the number and function of the T(reg) cells in renal recipients. Basiliximab decreased the percentage of CD4(+)CD25(+)T cells, but failed to influence the percentage of CD4(+)FoxP3(+) T(reg) cells. The cellular CD25 expression was decreased significantly by basiliximab injection, but CD4(+)CD25(+) T cells was not depleted from the circulating pool through monoclonal antibody activation-associated apoptosis. Functional analysis revealed that inhibitory function of T(reg) cells from recipients with basiliximab injection was not significantly different from recipients without injection. These data indicate that the functional T(reg) population may not be influenced by short-term basiliximab treatment.
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131
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Cai M, Yuan T, Duan L, Li X, Wang S. Identification of potential protein regulators bound to the tissue-specific positive and negative cis-acting elements of a green tissue-specific promoter in rice. PLANT BIOLOGY (STUTTGART, GERMANY) 2008; 10:771-777. [PMID: 18950435 DOI: 10.1111/j.1438-8677.2008.00084.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Although some tissue-specific cis-acting elements have been identified, the molecular mechanisms of tissue-specific gene expression remain elusive. Here, we report the identification by a yeast one-hybrid screen of five proteins, Os10g31330/glycine-rich, Os01g10400/metallothionein-like, Os05g51180/nucleic acid-binding, Os05g37930/unknown and Os01g01689/phosphatidylinositol kinase that bound to either the positive or negative tissue-specific cis elements of a rice promoter from the green tissue-specific D54O gene. These proteins are localised in the nucleus and the genes encoding them are differentially expressed in different tissues, further suggesting their putative roles in regulating gene expression. These results suggest that the green tissue-specific expression of the D54O gene may be regulated by the interaction of multiple proteins with cis elements in the promoter region.
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Xu X, Shi B, Cai M, Han Y, Wang Q, Xu L, Xiao L, Zhou W. A retrospective study of plasma cell infiltrates in explanted renal allografts. Transplant Proc 2008; 40:1366-70. [PMID: 18589107 DOI: 10.1016/j.transproceed.2008.03.097] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2007] [Accepted: 03/06/2008] [Indexed: 11/28/2022]
Abstract
Renal transplantation is the most effective therapy in end-stage renal disease. The prognosis for transplant survival is still determined by rejection. When plasma cells predominate in the cellular infiltrate of allografts in rejection, it is called plasma cell-rich rejection, which has a poor prognosis. To study the correlation between plasma cell infiltration and humoral rejection, and to explore whether the local plasma cells were involved in renal allograft loss we analyzed 40 explanted grafts and 20 specimens removed for other diseases. All specimens were embedded, deparaffined, and stained with hematoxylin eosin (HE) for analysis by immunohistochemistry (IH). Renal allograft rejection was classified according to the Banff 1997 criteria with examinations for C4d deposition and CD138 expression. Positive C4d staining was defined by linear endothelial C4d deposition in > or =25% of cortical peritubular capillaries. The specimens designated as CD138-positive demonstrated strong and diffuse staining characteristics; trace or rare CD138-positive were classified as negative. Our results showed that among 40 renal graft specimens, 17 cases were C4d-positive, 23 cases were CD138-positive, and 13 cases were C4d and CD138 double-positive, namely, 42.5%, 57.5%, and 32.5%, respectively. Among the double-positive cases, there were 2 patients with a diagnosis of acute cellular rejection, 1 with hyperacute rejection, and 10 with chronic humoral rejection. C4d deposition and CD138-positive plasma cell infiltrate were related by a Spearman analysis (r = 0.330; P = .038). In the control group, there was only 1 case showing C4d positive activities. These observations suggested that infiltrated plasma cells in the renal allograft probably participate in humoral rejection through local secretion of antibodies.
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Tang SK, Wang Y, Cai M, Lou K, Mao PH, Jin X, Jiang CL, Xu LH, Li WJ. Microbulbifer halophilus sp. nov., a moderately halophilic bacterium from north-west China. Int J Syst Evol Microbiol 2008; 58:2036-40. [DOI: 10.1099/ijs.0.65519-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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134
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Cai M, Xu L, Xu X, Li Z, Qian Y, Shi B, Li G. THE ROLE OF THE COMMITTEE FOR ETHIC AND APPLICATION OF ORGAN TRANSPLANTATION IN THE MEDICAL AND ETHICAL EVALUATION OF LIVING DONOR RENAL TRANSPLATATION. Transplantation 2008. [DOI: 10.1097/01.tp.0000330979.47460.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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135
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Cai M, Zhi XY, Tang SK, Zhang YQ, Xu LH, Li WJ. Streptomonospora halophila sp. nov., a halophilic actinomycete isolated from a hypersaline soil. Int J Syst Evol Microbiol 2008; 58:1556-60. [DOI: 10.1099/ijs.0.65513-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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136
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Fu YQ, Sanjabi S, Barber ZH, Huang WM, Cai M, Zhang S, Luo JK, Flewitt AJ, Milne WI. In-situ observation of transition between surface relief and wrinkling in thin film shape memory alloys. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2008; 8:2588-2596. [PMID: 18572689 DOI: 10.1166/jnn.2008.630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Significant surface morphology evolution between relief and wrinkling was observed on a 3.5 microm thick TiNiCu film sputter-deposited on a silicon substrate. At room temperature, variation in surface relief morphology (from separated martensite crystals embedded in amorphous matrix to fully interweaved martensite plates) was observed with slight change in film composition. The phenomenon was attributed to variations in crystallization temperatures of as-deposited amorphous films during annealing because of the compositional difference. During thermal cycling between room temperature and 100 degrees C, reversible surface morphology changes can be observed between surface relief and wrinkling patterns. The formation of the surface wrinkling is attributed to the large compressive stress in the film during high temperature post-annealing and crystallization, whereas surface relief is caused by the martensitic transformation to relieve the large tensile stress in the film. Compositional effect on this surface morphology evolution is discussed. Results also indicate that there is a critical dimension for the wrinkling to occur, and a small circular island can only relax by in-plane expansion.
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Shi B, Cai M, Qian Y, Zhou W, Mo C, Wang Y. Additive Immunosuppressive Effect of Hydroxycamptothecin and Cyclosporine on Rejection of Heart Transplantation in Rats. Transplant Proc 2007; 39:3429-31. [DOI: 10.1016/j.transproceed.2007.07.094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2007] [Revised: 06/29/2007] [Accepted: 07/28/2007] [Indexed: 10/22/2022]
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138
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Cai M, Shen S, Fang B, Shi J. The relationship between changes in occlusal forces and dentofacial morphology of skeletal class III malocclusal patients after tow jaw surgery. Int J Oral Maxillofac Surg 2007. [DOI: 10.1016/j.ijom.2007.08.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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139
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Li K, Wang J, Cai M, Mayr N. SU-FF-T-311: Monte-Carlo Calculation of Integral Dose for Gamma Knife Treatment Planning. Med Phys 2007. [DOI: 10.1118/1.2760973] [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
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140
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Zhou H, Zhang L, Tong L, Cai M, Guo H, Yang C, Shi B, Chen ZK. Expression of Neuropilin-1 In Kidney Graft Biopsies: What Is the Significance? Transplant Proc 2007; 39:81-3. [PMID: 17275479 DOI: 10.1016/j.transproceed.2006.10.221] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Recent work has suggested that neuropilin-1 (NRP-1) is a surface marker of regulatory T cells (Treg). However, no further relative evidence has been provided to confirm this finding. Since Treg should decline during rejection, the expression of NRP-1 on lymphocytes should decline in a rejected graft. To test this proposal, we examined NRP-1 expression in kidney graft biopsies. MATERIALS AND METHODS Tissue samples were obtained from 20 kidney graft biopsies with pathologically confirmed acute rejection and from 10 without rejections. We performed immunohistochemistry assays using an anti-NRP-1 monoclonal antibody. The positive cells were counted and the ratios among lymphocytes analyzed. RESULTS Compared with samples from nonrejected graft biopsies (18.71 +/- 20.60), the number of positive cells among lymphocytes in the rejected samples showed a lower percentage (3.16 +/- 1.72; P < .05). CONCLUSIONS NRP-1 has an important role in directing the growth of nervous synapses and immune synapses. We found in rejected grafts that the percentage of NRP-1 positive cells among lymphocytes decreased significantly. Therefore, NRP-1 may have a previously unrecognized role to predict the immune state of the graft as a potential marker for Treg.
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Bai HW, Shi BY, Qian YY, Na YQ, Cai M, Zeng X, Zhong DR, Wu SF, Chang JY, Zhou WQ. Does Endothelial Chimerism Correlate With Renal Allograft Rejection? Transplant Proc 2006; 38:3430-3. [PMID: 17175294 DOI: 10.1016/j.transproceed.2006.10.154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND The blood vessels of a transplanted organ are an interface between the donor and the recipient. The endothelium is believed to be a major target for graft rejection. After transplantation endothelial cells of a transplanted organ may be of recipient origin. OBJECTIVES In this study we sought to determine whether endothelial chimerism correlates with graft rejection. METHODS Biopsy samples from 34 renal transplants of female recipients who received kidneys from male donors were studied for the presence of endothelial cells of recipient origin. Formalin-fixed, paraffin-embedded tissue sections of renal biopsy samples were examined by fluorescence in situ hybridization (FISH) for the presence of endothelial cells containing two X chromosomes, using a biotinylated Y-chromosome probe and digoxigenin-labeled X-chromosome probe. RESULTS The FISH methods identified endothelial cells of recipient origin. Endothelial chimerism was common, irrespective of rejection. Its presence was focal with these elements, coexisting in the biopsy. CONCLUSIONS We observed no correlation between the percentage of recipient endothelial cells among vascular elements and the type of graft rejection (P > .05).
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Wu JL, Wu QP, Huang JM, Chen R, Cai M, Tan JB. Effects of L-malate on physical stamina and activities of enzymes related to the malate-aspartate shuttle in liver of mice. Physiol Res 2006; 56:213-220. [PMID: 16555951 DOI: 10.33549/physiolres.930937] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
L-malate, a tricarboxylic acid cycle (TCA) intermediate, plays an important role in transporting NADH from cytosol to mitochondria for energy production and may be involved in the beneficial effects of improving physical stamina. In the present study, we investigated the effects of L-malate on the performance of forced swimming time and blood biochemical parameters related to fatigue - blood urea nitrogen (BUN), glucose (Glc), creatine kinase (CK),total protein (TP) and lactic acid (LA). To investigate the effects of L-malate on the malate-aspartate shuttle and energy metabolism in mice, the activities of enzymes related to the malate-aspartate shuttle were measured. L-malate was orally administered to mice continuously for 30 days using a feeding atraumatic needle. The swimming time was increased by 26.1 % and 28.5 %, respectively, in the 0.210 g/kg and 0.630 g/kg L-malate-treated group compared with the control group. There were no differences in the concentrations of Glc, BUN and TP between the L-malate-treated groups and the control groups. However, the levels of CK were significantly decreased in the L-malate-treated groups. The results predict a potential benefit of L-malate for improving physical stamina and minimizing muscle damage during swimming exercise. The activities of cytosolic and mitochondrial malate dehydrogenase were significantly elevated in the L-malate-treated group compared with the control group. These enzymatic activities may be useful indicators for evaluating changes affecting the malate-aspartate shuttle and energy metabolism in the liver of mice.
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Cheng GJ, Pirzada D, Cai M, Mohanty P, Bandyopadhyay A. Bioceramic coating of hydroxyapatite on titanium substrate with Nd-YAG laser. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2005. [DOI: 10.1016/j.msec.2005.05.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ross TL, Fuss EP, Harrington SM, Cai M, Perl TM, Merz WG. Methicillin-resistant Staphylococcus caprae in a neonatal intensive care unit. J Clin Microbiol 2005; 43:363-7. [PMID: 15634995 PMCID: PMC540108 DOI: 10.1128/jcm.43.1.363-367.2005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Staphylococcus caprae, a hemolytic coagulase-negative staphylococcus that is infrequently associated with humans, was initially detected in specimens from six infants in our neonatal intensive care unit due to phenotypic characteristics common to methicillin-resistant Staphylococcus aureus. These isolates were subsequently identified as S. caprae by the Automated RiboPrinter microbial characterization system. This prompted an 8-month retrospective investigation in our neonatal intensive care unit. S. caprae was the cause of 6 of 18 episodes of coagulase-negative staphylococcal bacteremia, was the most common coagulase-negative staphylococcus recovered from the nares of 6 of 32 infants surveyed in a methicillin-resistant S. aureus surveillance program, and was isolated from 1 of 37 health care providers' hands. Of 13 neonatal intensive care unit isolates tested, all were methicillin resistant and positive for the mecA gene. All 21 isolates were found to be a single strain by Automated RiboPrinter and pulsed-field gel electrophoresis with ApaI or SmaI digestion; ApaI was more discriminating in analyzing epidemiologically unrelated strains than Automated RiboPrinter or electrophoresis with SmaI. These findings extend the importance of S. caprae, emphasize its similarities to methicillin-resistant S. aureus, and demonstrate its ability to persist in an intensive care unit setting.
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Cai M, Cai C, Mayorov AV, Xiong C, Cabello CM, Soloshonok VA, Swift JR, Trivedi D, Hruby VJ. Biological and conformational study of beta-substituted prolines in MT-II template: steric effects leading to human MC5 receptor selectivity. ACTA ACUST UNITED AC 2004; 63:116-31. [PMID: 15009533 DOI: 10.1111/j.1399-3011.2003.00105.x] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
To investigate the molecular basis for the interaction of the chi-constrained conformation of melanotropin peptide with the human melanocortin receptors, a series of beta-substituted proline analogs were synthesized and incorporated into the Ac-Nle-C[Asp-His-D-Phe-Arg-Trp-Lys]-NH2 (MT-II) template at the His6 and D-Phe7 positions. It was found that the binding affinities generally diminished as the steric bulk of the p-substituents of the 3-phenylproline residues increased. From (2S, 3R)-3-phenyl-Pro6 to (2S, 3R)-3-(p-methoxyphenyl)-Pro6 analogs the binding affinity decreased 23-fold at the human melanocortin-3 receptor (hMC3R), 17-fold at the hMC4R, and eight-fold at the hMC5R, but selectivity for the hMC5R increased. In addition, the substitution of the D-Phe7 residue with a (2R, 3S)-3-phenyl-Pro resulted in greatly reduced binding affinity (10(3)-10(5)) at these melanocortin receptors. Macromodel's Large Scale Low Mode (LLMOD) with OPLS-AA force field simulations revealed that both MT-II and SHU-9119 share a similar backbone conformation and topography with the exception of the orientation of the side chains of D-Phe7/D-Nal (2')7 in chi space. Introduction of the dihedrally constrained phenylproline analogs into the His6 position (analogs 2-6) caused topographical changes that might be responsible for the lower binding affinities. Our findings indicate that hMC3 and hMC4 receptors are more sensitive to steric effects and conformational constraints than the hMC5 receptor. This is the first example for melanocortin receptor selectivity where the propensity of steric interactions in chi space of beta-modified Pro6 analogs of MT-II has been shown to play a critical role for binding as well as bioefficacy of melanotropins at hMC3 and hMC4 receptors, but not at the hMC5 receptor.
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Cai M, Shi B, Qian Y, Mo C, Du G, Bai H, Wang Y, Zheng D, Que S, Chen ZK. Hand-assisted transperitoneal laparoscopic living donor nephrectomy. Transplant Proc 2004; 36:1903-4. [PMID: 15518692 DOI: 10.1016/j.transproceed.2004.06.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE We introduced and evaluated the advantages and disadvantages of the hand-assisted transperitoneal laparoscopic technique for living donor nephrectomy. MATERIALS AND METHODS In December 2001, we started using the technique of hand-assisted transperitoneal laparoscopic living donor nephrectomy (HLDN) in 10 cases. The procedure utilizes a hand-assisted device to increase safety and control of the laparoscopic technique. RESULTS Only left nephrectomy was performed. The mean total operating and the warm ischemia times were 130 minutes and 3.0 minutes, respectively. Average lengths of renal artery and vein were 1.95 cm and 2.8 cm, respectively. There were no intraoperative or postoperative complications. CONCLUSIONS HLDN is an easier procedure than the traditional laparoscopic living donor nephrectomy and can greatly mitigate the learning curve. HLDN has shortened warm ischemia time and operating time. It is also good for trocar placement, prevention of torsion of the kidney, control of potential bleeding at the final stage of vascular stapling, and kidney removal. Therefore, HLDN is a promising method for living donor nephrectomy.
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Yan Y, Zheng J, Xiao Y, Yu J, Hu Y, Cai M, Li Y, Hsam SLK, Zeller FJ. Identification and molecular characterization of a novel y-type Glu-Dt 1 glutenin gene of Aegilops tauschii. TAG. THEORETICAL AND APPLIED GENETICS. THEORETISCHE UND ANGEWANDTE GENETIK 2004; 108:1349-58. [PMID: 14740085 DOI: 10.1007/s00122-003-1547-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2003] [Accepted: 11/12/2003] [Indexed: 05/24/2023]
Abstract
A novel y-type high-molecular-weight glutenin subunit possessing a slightly faster mobility than that of subunit 1Dy12 in SDS-PAGE, designated 1Dy12.1(t) in Aegilops tauschi, was identified by one- and two-dimensional gel and capillary electrophoresis. Its coding gene at the Glu-D(t) 1 locus was amplified with allele-specific-PCR primers, and the amplified products were cloned and sequenced. The complete nucleotide sequence of 2,807 bp containing an open reading frame of 1,950 bp and 857 bp of upstream sequence was obtained. A perfectly conserved enhancer sequence and the -300 element were present at positions of 209-246 bp and 424-447 bp upstream of the ATG start codon, respectively. The deduced mature protein of 1 Dy12.1(t) subunit comprised 648 amino acid residues and had a Mr of 67,518 Da, which is slightly smaller than the 1Dy12 (68,695 Da) but larger than the 1Dy10 (67,495 Da) subunits of bread wheat, respectively, and corresponds well with their relative mobilities when separated by acid-PAGE. The deduced amino acid sequence indicated that the 1Dy12.1(t) subunit displayed a greater similarity to the 1Dy10 subunit, with only seven amino acid substitutions, suggesting that this novel gene could have positive effect on bread-making quality. A phenetic tree produced by nucleotide sequences showed that the x- and y-type subunit genes were respectively clustered together and that the Glu-D(t) 1y12.1 gene of Ae. tauschii is closely related to other y-type subunit genes from the B and D genomes of hexaploid bread wheat.
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Li Z, Chen Z, Cai M. [A case of ancylostomiasis manifested by fresh bloody stool]. ZHONGGUO JI SHENG CHONG XUE YU JI SHENG CHONG BING ZA ZHI = CHINESE JOURNAL OF PARASITOLOGY & PARASITIC DISEASES 2003; 17:333. [PMID: 12563724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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Cheng Y, Zhang Y, Lin C, Zhan Z, Yu X, Lin J, Cai M, Che W. [Taxonomic studies on Echinochasmus fujienensis and its related species by random amplified polymorphic DNA analysis and experimental infection]. ZHONGGUO JI SHENG CHONG XUE YU JI SHENG CHONG BING ZA ZHI = CHINESE JOURNAL OF PARASITOLOGY & PARASITIC DISEASES 2003; 17:135-9. [PMID: 12563828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To explore the identification and differentiation of Echinochasmus fujianensis, Echinochasmus japonicus(Jiangxi strain and Fujian strain), Echinochasmus liliputanus Anhui and Echinochasmus per foliatus Hubei. METHODS Random amplified polymorphic DNA analysis (RAPD) and experimental animal infection were performed. RESULTS 469 polymorphic DNA fragments were obtained by 28 primers from 4 Echinochasmus species and strains in Fujian, Anhui and Jiangxi. 20.8% and 97.6% of the fragments in Echinochasmus fujianensis were the same as those in Echinochasmus japonicus Fujian strain and in Echinochasmus liliputanus Anhui, respectively, 99.7% of the fragments were the same between Echinochasmus japonicus Jiangxi strain and Fujian strain. CONCLUSION Echinochasmus fujianensis and Echinochasmus liliputanus Anhui are the same species. Echinochasmus fujienensis is an independent species different from Echinochasmus japonicus. Polyinfection of Echinochasmus fujianensis, Echinochasmus japonicus and Echinochasmus perfoliatus exist in all the 3 provinces, Hubei, Anbui and Fujian, of which Echinochasmus fujienensis is a dominant species.
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Xu S, Zhang S, Chen C, Yan J, Cai M, Zhu X, Gu J. Over-expression of beta-1,4-galactosyltransferase V increases the growth of astrocytoma cell line. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2002; 21:409-14. [PMID: 12385586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Our previous study showed that the gene expression of beta-1,4-galactosyltransferase V (beta-1,4-GalT V), preferentially galactosylating GlcNAc1-->6Man of oligosaccharides, increased in the process of astrocytoma progress, with the highest level in grade IV astrocytoma. To investigate the function of this beta-1,4-GalT in cell proliferation, the sense and antisense cDNA of beta-1,4-GalT V was constructed as pcDNA3-HA-GalT V and pcDNA3-anti-GalT V respectively and transfected into SHG cell, a kind of human astrocytoma cell line. The transfection was confirmed with Northern and Western blot assay. It was found that the growth of SHG/HA-GalT V in serum-containing medium was faster than that of mock-transfectant with the vector pcDNA3, whereas the growth of SHG/GalTV-AS was slower than that of mock-transfectant. GalTV-HA/SHG showed a stronger capability for colony formation than that of GalTV-AS/SHG as evaluated by anchorage-independent growth in soft agar assay. This result was consistent with that of the growth curve. By RCA-1 lectin assay, the galactosylation on the surface of GalTV-HA/SHG and SHG/GalTV-AS was stained stronger (P<0.001) and weaker (P<0.05) respectively compared with the mock transfectant. This indicates that beta-1,4-GalT V was involved in the malignant phenotype of astrocytoma cells, possibly causing the high galactosylation on the cell surface.
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