1
|
Zheng ZH, Li XY, Ding J, Jia JF, Zhu P. Allogeneic mesenchymal stem cell and mesenchymal stem cell-differentiated chondrocyte suppress the responses of type II collagen-reactive T cells in rheumatoid arthritis. Rheumatology (Oxford) 2008; 47:22-30. [PMID: 18077486 DOI: 10.1093/rheumatology/kem284] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Rheumatoid arthritis (RA) is a T-cell-mediated systematic disease and is usually accompanied by articular cartilage damage. In the present study, we explored the effects of bone marrow-derived mesenchymal stem cells (MSCs) and MSC-differentiated chondrocytes (MSC-chondrocytes) on the responses of antigen-specific T cells in RA to type II collagen (CII) to evaluate the potential therapeutic value of MSCs in RA treatment. METHODS The effects of both MSCs and MSC-chondrocytes on the proliferation, activation-antigen expression (CD69 and CD25) and cytokine production [interferon-gamma (IFN-gamma), tumour necrosis factor-alpha (TNF-alpha), interleukin (IL)-10 and IL-4] of CII-reactive T cells in RA patients were investigated with the stimulation of CII or otherwise. CD3/annexin V staining was used to evaluate T-cell apoptosis in the inhibition. The role of transforming growth factor-beta1 (TGF-beta1) underlying the inhibition was also investigated. RESULTS MSCs failed to elicit positive responses of CII-reactive T cells, whereas they significantly suppressed CII-stimulated T-cell proliferation and activation-antigen expression in a dose-dependent fashion without inducing T-cell apoptosis. The inhibition was observed even after MSCs were added as late as 3 days after the initiation of stimulation. Moreover, MSCs inhibited both CD4+ and CD8+ T cells from producing IFN-gamma and TNF-alpha, while they up-regulated the levels of IL-10 and restored the secretion of IL-4. TGF-beta1 was confirmed to play a critical role in the inhibition. Throughout our study, MSC-chondrocytes shared similar properties with MSCs. CONCLUSION Both MSCs and MSC-chondrocytes suppressed CII-reactive T-cell responses to CII in RA, which suggested that MSCs could be a potential candidate for RA treatment in future if further confirmed in vivo.
Collapse
|
Research Support, Non-U.S. Gov't |
17 |
117 |
2
|
Wang YM, Wang JB, Luo D, Jia JF. Regeneration of plants from callus tissues of hairy roots induced by Agrobacterium rhizogenes on Alhagi pseudoalhagi. Cell Res 2001; 11:279-84. [PMID: 11787773 DOI: 10.1038/sj.cr.7290097] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 11/09/2022] Open
Abstract
The legume forage Alhagi pseudoalhagi was transformed by the Agrobacterium rhizogenes strain A4 using cotyledon and hypocotyl segments as infection materials. Regenerated plants were achieved from sterile calli derived from hairy roots, which occurred at or near the infection sites. The regenerated plants from hairy root were characterized by normal leaf morphology and stem growth but a shallow and more extensive root system than normal plants. Opine synthesis, PCR and Southern blot confirmed that T-DNA had been integrated into the A. pseudoalhagi genome. Acetosyringone (AS) was found to be vital for successful transformation of A. pseudoalhagi.
Collapse
|
|
24 |
44 |
3
|
Zhao RG, Jia JF, Yang WS. Intermixing at Pb/Si(111) and Pb/Si(001) interfaces studied with electron-energy-loss spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:5333-5337. [PMID: 10009052 DOI: 10.1103/physrevb.48.5333] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 04/12/2023]
|
|
32 |
16 |
4
|
Sun GF, Jia JF, Xue QK, Li L. Atomic-scale imaging and manipulation of ridges on epitaxial graphene on 6H-SiC(0001). NANOTECHNOLOGY 2009; 20:355701. [PMID: 19671983 DOI: 10.1088/0957-4484/20/35/355701] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/28/2023]
Abstract
Ridges are observed on epitaxial graphene on 6H-SiC(0001) by scanning tunneling microscopy (STM). Atomic resolution imaging reveals that they are in fact bulged regions of the graphene layer, occurring as a result of bending and buckling to relieve the compressive strain. Furthermore, their length, direction, and distribution can be manipulated, and new ones can even be created by the tip-surface interactions during STM imaging. The lower limit of terrace size for ridge formation is estimated to be approximately 80 nm, and nearly ridge-free graphene film can be obtained on vicinal 3.5 degrees miscut substrates.
Collapse
|
|
16 |
14 |
5
|
Jia JF, Zhao RG, Yang WS. Atomic structure of the Si(111)( sqrt 3 x sqrt 3 )R30 degrees-Ag surface. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:18109-18113. [PMID: 10008450 DOI: 10.1103/physrevb.48.18109] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 04/12/2023]
|
|
32 |
13 |
6
|
Jia JF, Potrykus I. Mesophyll protoplasts from Solanum melongena var depressum bailey regenerate to fertile plants. PLANT CELL REPORTS 1981; 1:71-72. [PMID: 24258864 DOI: 10.1007/bf00269277] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 11/24/1981] [Indexed: 06/02/2023]
Abstract
Mesophyll protoplasts have been isolated from soil grown plants of Solanum melongena var depressum Bailey and protoplast-derived colonies regenerated in liquid DPD culture medium. Protoplast-derived colonies proliferated on agar-solidified MS culture medium and regenerated shoots which grew to fertile plants in potting compost.
Collapse
|
|
44 |
9 |
7
|
Chen Z, Fadiel A, Jia JF, Sakamoto H, Carbone R, Naftolin F. Induction of apoptosis and suppression of clonogenicity of ovarian carcinoma cells with estrogen mustard. Cancer 1999; 85:2616-22. [PMID: 10375110 DOI: 10.1002/(sici)1097-0142(19990615)85:12<2616::aid-cncr18>3.0.co;2-j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND This study was conducted to evaluate whether estramustine (estrogen mustard [EM]) is a promising alternative in the treatment of patients with epithelial ovarian carcinoma (OVCA). EM is a microtubule-associated protein (MAP) specific antimicrotubule agent with low toxicity. METHODS The authors investigated the ability of EM to induce apoptosis and suppress colony formation of OVCA cells. Paclitaxel was used as a positive control. DNA electrophoresis and terminal deoxynucleotidyl dUTP-X nick end labeling (TUNEL) assays were used to detect internucleosomal DNA fragmentation. Flow cytometry was used to identify apoptotic cells and disturbance of the cell cycle of EM-treated OVCA cells further. Quantitation of detached cultured cells also provided a relative estimate of the apoptotic response of OVCA cells to treatment with EM. The colony formation assay was used to evaluate the effects of EM on clonogenicity. RESULTS The effects of EM on four OVCA cell lines in culture were highly similar to those of paclitaxel in causing apoptosis and inhibiting clonogenicity. DNA electrophoresis and TUNEL assays showed that EM induced internucleosomal DNA fragmentation in OVCA cells. Flow cytometry showed changes typical of apoptotic changes and cell cycle block and synchronization at the G2/M-phase. Counting of detached cells showed a log-dose response to EM treatment. The colony formation assay also showed a log-dose response suppression of OVCA cell clonogenicity after treatment with EM. CONCLUSIONS EM may be a promising candidate in the clinical treatment of patients with OVCA. The lower toxicity and MAP specific action of EM is a novel chemotherapy for OVCA.
Collapse
|
|
26 |
4 |
8
|
Jia JF, Zhao RG, Yang WS. Quasikinematic low-energy electron-diffraction surface crystallography. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:18101-18108. [PMID: 10008449 DOI: 10.1103/physrevb.48.18101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 11/07/2022]
|
|
32 |
4 |
9
|
Jia JF, Gao NN, Xia GJ, Luo QF, Fang DC, Jiang MX. [Studies on the calcium antagonistic action of tetrandrine: IX. Effects of tetrandrine on the contractility of isolated swine coronary artery strips]. ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1985; 5:15-9. [PMID: 4000587 DOI: 10.1007/bf02856904] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 01/08/2023]
|
|
40 |
3 |
10
|
Hou SW, Jia JF. Plant regeneration from protoplasts isolated from embryogenic calli of the forage legume Astragalus melilotoides Pall. PLANT CELL REPORTS 2004; 22:741-746. [PMID: 14762684 DOI: 10.1007/s00299-004-0760-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 07/15/2003] [Revised: 01/02/2004] [Accepted: 01/02/2004] [Indexed: 05/24/2023]
Abstract
An efficient and reproducible protocol is described for the regeneration of Astragalus melilotoides protoplasts isolated from hypocotyl-derived embryogenic calli. Maximum protoplast yield (11.74 +/- 0.6x10(5)/g FW) and viability (87.07 +/- 2.8%) were achieved using a mixture of 2% (w/v) Cellulase Onozuka R10, 0.5% (w/v) Cellulase Onozuka RS, 0.5% (w/v) Macerozyme R10, 0.5% (w/v) Hemicellulase, and 1% (w/v) Pectinase, all dissolved in a cell protoplast wash (CPW) salt solution with 13% (w/v) sorbitol. First divisions occurred 3-7 days following culture initiation. The highest division frequency (9.86 +/- 0.68%) and plating efficiency (1.68 +/- 0.05%) were obtained in solid-liquid medium (KM8P) supplemented with 1.0 mg/l 2,4-dichlorophenoxyacetic acid, 0.5 mg/l 6-benzylaminopurine (BA), 0.2 mg/l kinetin, 0.2 M glucose, 0.3 M mannitol and 500 mg/l casein hydrolysate. Upon transfer to MS medium with 0.5 mg/l alpha-naphthaleneacetic acid and 1-2 mg/l BA, the protoplast-derived calli produced plantlets via somatic embryogenesis (56.3 +/- 4.1%) and organogenesis (21.6 +/- 0.6%). Somatic embryos or adventitious shoots developed into well-rooted plantlets on MS medium without any plant growth regulators or supplemented with 3.0 mg/l indole-3-butyric acid, respectively. About 81% of the regenerants survived in soil, and all were normal with respect to morphology and growth characters.
Collapse
|
|
21 |
2 |
11
|
Duan S, Jia JF, Hong B, Zhou J, Zhang Y, Ge F, Li M. Assessment of Amentoflavone Loaded Sub-Micron Particle Preparation using Supercritical Antisolvent for its Antitumor Activity. Curr Drug Deliv 2022; 19:41-48. [DOI: 10.2174/1567201818666210810142750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Academic Contribution Register] [Received: 12/08/2020] [Revised: 05/19/2021] [Accepted: 05/28/2021] [Indexed: 11/22/2022]
Abstract
Introduction:
The amentoflavone (AMF) loaded polymeric sub-micron particles were
prepared using supercritical antisolvent (SAS) technology with the aim of improving the anticancer
activity of AMF.
Materials and Methods:
Zein and phospholipid mixtures composed of Hydrogenated Phosphatidylcholine (HPC)
and egg lecithin (EPC) were used as carrier materials and, the effects of carrier composition on the
product morphology and drug release behavior were investigated. When the mass ratio of Zein/HPC/
EPC was 7/2/1, the AMF loaded particles were spherical shape and sub-micron sized around
400 nm, with a drug load of 4.3±0.3 w% and entrapment efficacy of 87.8±1.8%. The in vitro drug
release assay showed that adding EPC in the wall materials could improve the dispersion stability
of the released AMF in an aqueous medium, and the introduction of HPC could accelerate the drug
release speed.
Results:
MTT assay demonstrated that AMF-loaded micron particles have an improved inhibitory
effect on A375 cells, whose IC50 was 37.39μg/ml, compared with that of free AMF(130.2μg/ml).
Conclusion:
It proved that the AMF loaded sub-micron particles prepared by SAS were a prospective
strategy to improve the antitumor activity of AMF, and possibly promote the clinical use of
AMF preparations.
Collapse
|
|
3 |
2 |
12
|
Fang DC, Jia JF, Xia GJ, Wu ZC, Jiang MX. Studies on the calcium antagonistic action of tetrandrine: VI. Comparison of effects of tetrandrine, verapamil and propranolol on myocardial blood flow. ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1984; 4:65-8. [PMID: 6738986 DOI: 10.1007/bf02857020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 01/21/2023]
|
Comparative Study |
41 |
2 |
13
|
Ning YX, Song CL, Wang YL, Chen X, Jia JF, Xue QK, Ma XC. Vortex properties of two-dimensional superconducting Pb films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:065701. [PMID: 21389372 DOI: 10.1088/0953-8984/22/6/065701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/30/2023]
Abstract
Using low temperature scanning tunnelling microscopy/spectroscopy (STM/STS) we have investigated the vortex behaviours of two-dimensional superconducting Pb films at different thicknesses. STS at the vortex core shows an evolution of electronic states with film thickness. Transition from the clean limit to the dirty limit of superconductivity is identified, which can be ascribed to the decreased electronic mean free path induced by stronger scattering from the disordered interface at smaller thicknesses. A magnetic field dependent vortex core size is observed even for such a low- κ superconductor. The weak pinning induced by surface defects leads to the formation of a distorted hexagonal vortex lattice.
Collapse
|
|
15 |
2 |
14
|
Meng YL, Gao YP, Jia JF. Plant regeneration from protoplasts isolated from callus ofGentiana crassicaulis. PLANT CELL REPORTS 1996; 16:88-91. [PMID: 24178662 DOI: 10.1007/bf01275457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Academic Contribution Register] [Received: 07/19/1995] [Revised: 12/21/1995] [Indexed: 05/13/2023]
Abstract
Fast growing calli induced from hypocotyl segments ofGentiana crassicaulis were used for preparation of protoplasts. High yields of viable protoplasts were produced in an enzyme solution containing 1-2% cellulase, I% pecfinase, and 0.5% Hemicellulase. Protoplasts were cultured in KM8P medium containing 1 mg/l 2,4-D, 0.5 mg/l 6BA, 500 mg/l LH, 0.5 M glucose and 0.1 M mannitol by the solid-liquid dual layer culture method. First division occurred within 4-5 days of culture at a frequency of 17.8%. Sustained divisions led to callus formation. Periodically diluting the cultures with freshly prepared liquid medium containing 1% glucose was critical for colony formation. Protocolonies about 2 mm in size were transferred onto MS medium supplemented with 3 mg/l ZT, 2 mg/l 6BA, 1 mg/l GA3, 1 mg/l NAA and 6% sucrose to obtain embryogenic calli. Plantlets were regenerated via somatic embryogenesis at high frequency on hormone-free MS Medium.
Collapse
|
|
29 |
1 |
15
|
Sun GF, Liu Y, Qi Y, Jia JF, Xue QK, Weinert M, Li L. Electron standing waves on the GaN(0001)-pseudo (1 × 1) surface: a FT-STM study at room temperature. NANOTECHNOLOGY 2010; 21:435401. [PMID: 20890020 DOI: 10.1088/0957-4484/21/43/435401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 05/29/2023]
Abstract
We report the direct imaging of standing waves on a GaN(0001)-pseudo (1 × 1) metallic surface, which consists of two atomic Ga layers with the top layer incommensurate. Two types of periodic oscillation are observed by scanning tunneling microscopy at room temperature. The longer wavelength standing waves are due to electron scattering by dislocation-induced steps and two-dimensional InN islands. The localized shorter wavelength waves are attributed to a structural transition of the incommensurate Ga bilayer to a tetrahedral Ga bilayer after the growth of the InN islands.
Collapse
|
|
15 |
1 |
16
|
Xia GJ, Jia JF, Wu ZC, Fang DC, Jiang MX. [Comparison of effects of tetrandrine, verapamil and propranolol on myocardial blood flow]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1982; 3:230-3. [PMID: 6219537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 01/19/2023]
|
Comparative Study |
43 |
|
17
|
Luo JP, Jia JF, Gu YH, Liu J. [Improved protoplast-derived plants of Astragalus adsurgens through somatic embryogenesis]. SHENG WU GONG CHENG XUE BAO = CHINESE JOURNAL OF BIOTECHNOLOGY 2000; 16:17-21. [PMID: 10883269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 02/16/2023]
Abstract
Embryogenic callus was obtained only from hypocotyl explants of Astragalus adsurgens and light inhibited the formation of embryogenic callus. A high yield (1.2 x 10(6)/g F. Wt.) of protoplasts with high viability (over 80%) could be isolated from 10-day-old embryogenic callus. Protoplasts were induced to undergo sustained division and to form cell colonies when cultured in agarose-solidified medium (KMP) containing 1/4 strength of mineral salts and supplemented with 1.5 mg/L 2, 4-D, 0.5 mg/L BA and 0.5 mol/L glucose at a plating density of 1.0 x 10(5)mL, where the plating efficinency was 16.8%. Conditioning medium significantly improved the formation of cell colonies. When protoplast-derived colonies were maintained at 4 degrees C for 2 weeks and subsequently transferred onto medium (MS) with 0.1 mg/L NAA and 1.0 mg/L BA, somatic embryogenesis occurred. Frequency of cell colonies producing somatic embryos reached 70%, and the number of somatic embryos per gram cells was over 200. Cultured on hormone-free half-strength MS medium, somatic embryos developed into healthy plantlets with normal chromosome complement.
Collapse
|
|
25 |
|
18
|
Li Y, Chen JY, Jia JF, He SH, Xu D. [Comparison of robotic-assisted single-incision-plus-one-port laparoscopic pyeloplasty and single-incision laparoscopic pyeloplasty in the treatment of pediatric ureteropelvic junction obstruction]. ZHONGHUA YI XUE ZA ZHI 2024; 104:371-376. [PMID: 38281806 DOI: 10.3760/cma.j.cn112137-20231002-00624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Academic Contribution Register] [Indexed: 01/30/2024]
Abstract
Objective: To compare the efficacy of robotic-assisted single-incision-plus- one-port laparoscopic pyeloplasty (R-SILP+1) with single-incision laparoscopic pyeloplasty (SILP) in pediatric ureteropelvic junction obstruction (UPJO). Methods: The clinical data of 47 children with UPJO who underwent surgery from October 2020 to September 2022 in the Department of Pediatric Surgery of Fujian Provincial Hospital were retrospectively analyzed. According to the surgical method chosen by parents, the children were divided into R-SILP+1 group and SILP group. Baseline data, operative time, intraoperative anastomosis time, volume of blood loss, postoperative hospitalization time, complications, total costs, preoperative and postoperative renal parenchymal thickness (PT), anterior posterior diameter of renal pelvis (APD), and differential renal function (DRF) before and after operation were compared between the two groups, and the clinical efficacy of the two kinds of operation was evaluated. Results: Among the 47 children, 27 were in R-SILP+1 group, including 16 males and 11 females, aged (6.6±3.5) years; 20 were in SILP group, including 12 males and 8 females, aged (6.5±3.5) years. The operations were successful in both groups without conversion to open operation. There were no significant differences between the two groups in baseline data, volume of blood loss, complications, APD and PT at postoperative 6 months, APD, PT and DRF at postoperative 12 months (all P>0.05). Compared with the SILP group, the operative time [(153.0±14.4) vs (189.9±32.6) minutes, P<0.001], intraoperative anastomosis time [(68.8±16.8) vs (97.5±12.0) minutes, P<0.001], postoperative hospitalization time [(6.0±1.3) vs (9.0±1.3) d, P<0.001] were shorter, but the total cost was higher[(57 390±7 664) vs (30 183±4 219) yuan RMB, P<0.001]. Conclusions: Compared with the SILP group, R-SILP+1 can achieve considerable efficacy in treating pediatric UPJO, and has certain advantages in shortening operative time, intraoperative anastomosis time, and postoperative hospitalization time. However, the cost is high.
Collapse
|
English Abstract |
1 |
|
19
|
Xu ZQ, Jia JF. [Molecular identification of intergeneric somatic hybrid plants between alfalfa and sainfoin]. SHENG WU GONG CHENG XUE BAO = CHINESE JOURNAL OF BIOTECHNOLOGY 2000; 16:173-8. [PMID: 10976321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 02/17/2023]
Abstract
Somatic hybrid plants between alfalfa and sainfoin were regenerated by protoplast fusion and culture. DNA samples of the hybrid plants, hydroxyproline-resistant sainfoin plants, alfalfa cell line transformed with Agrobacterium tumefaciens 702 were isolated with a new and simple method. The hybridity was identified by random amplified polymorphic DNAs and Southern hybridization. Significant differences can be seen in the sequences amplified, which are specific for each parent/primer combination under the amplification conditions used. In 20 random oligonucleotide primers used, six could amplified more DNA fragments and had better polymorphisms. The results suggested that besides containing nuclear substances of two parents, the hybrid genome was inclined to eliminate sainfoin chromosome with DNA reconstruction. However, the somatic genome also could produce the sainfoin-specified DNA fragments which further confirmed by Southern hybridization. The hybrids were asymmetric and had certain regeneration ability just because the intervention of sainfoin DNA.
Collapse
|
English Abstract |
25 |
|
20
|
Zhu JQ, Jia JF, Yan HW, Hu CJ. [Effect of dauricine on myocardial contraction force and coronary circulation]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1986; 7:543-7. [PMID: 2955645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 01/03/2023]
|
English Abstract |
39 |
|
21
|
Tang CW, Jia JF, Li ZM. [Ranitidine in the treatment of duodenal ulcer]. ZHONGHUA NEI KE ZA ZHI 1986; 25:458-60, 509. [PMID: 3803059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 01/07/2023]
|
Comparative Study |
39 |
|
22
|
Tang CW, Jia JF, Li ZM. [Randomized double-blind study on the dosage of ranitidine (China-made) in the treatment of duodenal ulcer]. ZHONGHUA NEI KE ZA ZHI 1987; 26:68-70, 124. [PMID: 3301230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 01/05/2023]
|
Clinical Trial |
38 |
|
23
|
Jia JF, Xia GJ, Qian JQ, Ye WX. Effects of rhomotoxin on nutritional blood flow and content of cAMP in myocardium. ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1984; 4:191-2. [PMID: 6091006 DOI: 10.1007/bf02856876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Academic Contribution Register] [Indexed: 01/18/2023]
|
|
41 |
|
24
|
Xu ZQ, Ma HJ, Hao JG, Jia JF. [Transformation of sainfoin by Agrobacterium rhizogenes LBA9402 Bin19 and regeneration of transgenic plants]. SHI YAN SHENG WU XUE BAO 2000; 33:63-8. [PMID: 12548853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 02/28/2023]
Abstract
Hypocotyl segments of Onobrychis viciaefolia were transformed by Agrobacterium rhizogenes LBA9402 which harboured pBin19 and pRi1855. Seedling age and preculture time of hypocotyl segments influenced the transformation frequency. Paper electrophoresis revealed that 70% of single hairy root cultures could synthesize agropine. Calli were induced from hairy root segments on MS medium containing 0-9.05 mumol/L 2,4-D and 0-2.22 mumol/L 6-BA at first, then they were transferred onto MS0 medium without kanamycin for regeneration. Constitution and concentration of phytohormones in callus induction media affected subsequent regeneration of calluses on MS0 medium remarkably. Regeneration frequency and shoot number per callus declined when 2,4-D concentration in callus induction media increased from 4.52 to 9.05 mumol/L, while they ascended when 6-BA in callus induction media increased from 0 to 2.22 mumol/L. On MS medium supplemented with 4.52 mumol/L 2,4-D and 2.22 mumol/L 6-BA, only 14.2% hairy root segments could produce calluses, but the regeneration frequency reached 58.1% and the shoot number per callus was 37.2. In 32 analysed plants regenerated from 8 kanamycin resistant hairy root lines, 25 were nptII positive and showed different copy numbers.
Collapse
|
English Abstract |
25 |
|
25
|
Xu YY, Wang MG, Jia JF. [Selection and identification of salt tolerant line of sainfoin from the seeds of first post-flight plants]. SHI YAN SHENG WU XUE BAO 2001; 34:11-5. [PMID: 12549005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Academic Contribution Register] [Indexed: 02/28/2023]
Abstract
Seeds of sainfoin (Onobrychis vicaefolia Scop.) were carried in the recoverable satellite 940703 and recovered from earth orbit from China in 1994. The progeny seeds were obtained by producing in field. The salt tolerant calluses were selected by screening seedling and callus on 1.5% NaCl-containing medium, reviving growth on NaCl- free medium and selecting callus on 1.2% NaCl-containing medium. The salt tolerant line callus maintained the normal ability to regenerate plant. The salt tolerant line callus exhibited cross-resistance to PEG stress. The variant appeared higher efficiency than control to accumulate proline under salt stress, however, under nonstress condition it had lower proline level than control, which suggested that the higher efficiency to synthesize proline under stress condition may be more important than higher level in tissue under nonstress condition. The mechanism of proline synthesis in the selected callus was considered to result from the alteration in gene sensitivity to water regulation at transcription level. Acrylamide gradient electrophoresis showed that new isoenzyme form with MW 175 kD and 75 kD of superoxide dismutase and esterase respectively appeared in salt torlerant callus. It was indicated that the combination of space mutagenesis with tissue culture could be used for the selection of salt tolerant sainfoin line in vitro.
Collapse
|
English Abstract |
24 |
|