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31.
APN/CD13 is over‐expressed by Psoriatic fibroblasts and is modulated by CGRP and IL‐4 but not by retinoic acid treatment
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Hermine Biermé Jean-Pierre Françoise Rémy Guillevin Alain Miranville 《Acta biotheoretica》2016,64(4):309-310
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The IW32, NN10, and IW201 cell lines are erythroleukemic cell lines isolated from the spleens of mice infected with the Friend virus. IW32 and NN10 cells can be induced toward erythroid differentiation and hemoglobin synthesis by hemin or butyrate. Both cell lines contain some mature alpha- and beta-globin mRNA before induction, and addition of the inducers greatly increases the amount of globin message. Unlike IW32 and NN10 cells, IW201 cells are only partially inducible. Uninduced 201 cells contain a small amount of alpha-globin mRNA but no detectable beta-globin message. After induction, the cells contain markedly increased amounts of alpha-globin mRNA but still do not express the beta-globin gene. Southern blot analysis with 10 restriction enzymes shows that the restriction map of the beta-globin gene in IW201 cells is indistinguishable from that in IW32 and NN10 cells. 相似文献
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Th. G. E. Geurts Hermine E. De Kok J. A. Roels 《Biotechnology and bioengineering》1980,22(10):2031-2043
Saccharomyces cerevisiae CBS 426 was grown aerobically in continuous culture with a mixture of glucose and ethanol as the carbon source. The flows of biomass, glucose, ethanol, oxygen, and carbon dioxide were measured. A model for growth with two substrates was derived. Application of this model to the above-mentioned system yielded values for YATP and P/O. The joint confidence regions for these parameters were calculated. The relevance to industrial production of bakers' yeast is discussed. 相似文献
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Haemodynamic effects of macrocyclic and linear gadolinium chelates in rats: role of calcium and transmetallation 总被引:3,自引:0,他引:3
Jean-Marc Idée Christine Berthommier Valérie Goulas Claire Corot Robin Santus Chantal Hermine Michel Schaefer Bruno Bonnemain 《Biometals》1998,11(2):113-123
Several studies were undertaken to compare four magnetic resonance imaging (MRI) contrast media (CM) as regards acute haemodynamic effects in rats and to investigate the mechanisms involved. (1) Normotensive rats received a rapid bolus intravenous injection of 0.5 mmol kg of each CM. The effects of Gd-DOTA, Gd-HP-DO3A, Gd-DTPA and Gd-DTPA-BMA on blood pressure (BP) were compared. (2) The haemo-dynamic effects of Gd-DTPA (0.5 mmol kg ) were compared to those of isovolumic and isoosmolar Zn-DTPA and glucose solutions. (3) The haemodynamic profiles of Gd-DTPA and Gd-DTPA-BMA were recorded with and without addition of ionized calcium. (4) The mechanism of Gd-HP-DO3A-induced tran-sient rise in BP was investigated by evaluating the effects of phentolamine or diltiazem pretreatment. For (1) the greatest drop in BP occurred following Gd-DTPA (a linear chelate) injection (–18 ± 2% vs base-line, P < 0.01). Gd-DTPA-BMA, another lineate chelate, also induced a slight but significant reduction in BP (–8 ± 2% at 45 s, P < 0.05). Gd-DOTA, a macrocyclic CM, had virtually no haemodynamic effects. For (2) the Gd-DTPA-induced drop in BP was greater than that of the osmolality-matched glucose control and lower than that of osmolality-matched Zn-DTPA. For (3) a transmetallation phenomenon versus free ionized calcium is possible in the case of both linear CM (Gd-DTPA and Gd-DTPA-BMA) since Ca significantly reduced the CM-induced decrease in BP. For (4) a transient rise in BP was observed following Gd-HP-DO3A, another macrocyclic chelate, associated with a concomitant increase in stroke volume. This effect was antagonized neither by phentolamine nor by diltiazem. The decrease in BP following injection of Gd-DTPA or Gd-DTPA-BMA may not only be osmolality-related since (a) Gd-DOTA solution, whose osmo-lality is greater than that of Gd-DTPA-BMA, had a lesser effect, and (b) this hypotensive effect was corrected by addition of ionized calcium. The transient Gd-HP-DO3A-induced rise in BP is probably the consequence of a positive inotropic effect. © Rapid Science 1998 相似文献
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Gertrude Membang Zachee Ambang Hermine Claudine Mahot Apollin Fotso Kuate Komi Kouma Mokpokpo Fiaboe Rachid Hanna 《Journal of Applied Entomology》2020,144(6):468-480
Management of the banana root borer (BRB), Cosmopolites sordidus (Germar; Coleoptera: Curculionidae), remains a challenge in banana and plantain production worldwide. Synthetic pesticides remain the most widely used solution while mycoinsecticides are increasingly being recommended. In this study, we selected indigenous isolates of Beauveria bassiana and Metarhizium anisopliae collected from plantain fields in Cameroon, and tested them in the laboratory for their viability, pathogenicity and virulence against all C. sordidus life stages. Of 13 isolates initially screened for spore germination and pathogenicity to adult weevils in conidial suspension of 3.2 × 108 conidia/ml, eight isolates with high to moderate germination and highest weevil mortality were selected for dose–response bioassays with four concentrations per isolate: 3.2 × 102, 3.2 × 104, 3.2 × 106 and 3.2 × 108 conidia/ml. The virulent isolates from adult bioassays were tested with eggs, larva and pupae in conidial suspension of 3.2 × 108 conidia/ml. Isolates performance depended on insect life stage with significantly high pathogenicity and virulence against larval, pupa and adult stages. The Beauveria isolate BIITAC6.2.2 caused the highest mortality rates followed by MIITAC1.1.5. Lethal times and lethal concentrations were relatively low for the three M. anisopliae isolates and three B. bassiana isolates which were the best isolates in almost all insect life stages. Apart from being effective in multiple life stages, these isolates were transmitted horizontally from one stage to another when eggs and pupae were treated. The implication of these findings for integrated management of the BRB, and potential biopesticides development and commercialization are discussed. 相似文献