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Xu JT, Fu LB, Yao XF, Jia C, Guan XX, Zhang M, He LJ. [Congenital spindle cell/sclerosing rhabdomyosarcoma: a clinicopathological analysis]. Zhonghua Bing Li Xue Za Zhi 2024; 53:344-350. [PMID: 38556817 DOI: 10.3760/cma.j.cn112151-20231024-00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Objective: To investigate the clinicopathological features, immunophenotype and molecular genetic characteristics of congenital spindle cell/sclerosing rhabdomyosarcoma. Methods: Sixteen cases (including 10 consultation cases) of congenital spindle cell/sclerosing rhabdomyosarcoma diagnosed at the Beijing Children's Hospital, Capital Medical University, Beijing China, from April 2017 to January 2022 were collected. These cases were evaluated for clinical profiles, histomorphological features, immunophenotype and molecular characteristics. Results: Among the 16 patients, 9 were male and 7 were female. Five cases were present during maternal pregnancy and 11 cases were found immediately after birth. The tumors were located in the chest wall, low back, retroperitoneum, extremities or perineum. The tumors consisted of fasciculated spindle-shaped cells with localized mesenchymal sclerosis and vitreous metaplasia. Immunohistochemistry showed that the tumor cells expressed Desmin, Myogenin, MyoD1, SMA, CD56 and ALK to varying degrees, but not other markers such as CD34, CD99, pan-TRK, S-100 and BCOR. FISH analyses with NCOA2 (8q13) and VGLL2 (6q22) gene breakage probes revealed a breakage translocation in chromosome NCOA2 (8q13) in 4 cases (4/11). In the 6 cases subject to sequencing, a mutation at the p.L122R locus of MYOD1 gene was detected in 1 case (1/6). Two cases were examined by electron microscopy, which showed bundle-arranged myofilaments with some primitive myofilament formation. Five cases were resected with simple surgery, 2 cases were biopsied and followed up with observation only, and 9 cases were treated with surgery and adjuvant chemotherapy. Follow-up was available in 12 cases. At the end of the follow-up, 2 of the 12 patients developed local recurrences and 2 patients survived with disease. Conclusions: Congenital spindle cell/sclerosing rhabdomyosarcoma is a rare subtype of congenital rhabdomyosarcoma. It more commonly occurs in the chest, back and lower limbs of infants than other sites. NCOA2/VGLL2 gene fusion seems to be the most common genetic change. Its prognosis is better than other subtypes of rhabdomyosarcoma and those in adolescents and adults with the same subtype. Analysis and summary of its clinicopathological features can help differentiate it from other soft tissue tumors in infants and children and provide the information for appropriate treatments.
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Affiliation(s)
- J T Xu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L B Fu
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X F Yao
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - C Jia
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X X Guan
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - M Zhang
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L J He
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Yao XF, He LJ, Wang H, Xu JT, Fu Q, Wang L, Guan Y. [Glomerulopathy with fibronectin deposits: a clinicopathological study]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1157-1159. [PMID: 37899324 DOI: 10.3760/cma.j.cn112151-20230322-00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Affiliation(s)
- X F Yao
- Deparment of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - L J He
- Deparment of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - H Wang
- Deparment of Renal Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - J T Xu
- Deparment of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - Q Fu
- Deparment of Renal Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - L Wang
- Deparment of Pathology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health,Beijing 100045, China
| | - Y Guan
- Ultrastructural Pathology Center, Renmin Hospital of Wuhan University, Wuhan 430060,China
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Lyu L, Xu JT, Liu P. [Giant cell fibroblastoma in the nasal vestibule: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:345-347. [PMID: 35325948 DOI: 10.3760/cma.j.cn115330-20210520-00284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- L Lyu
- Department of Otorhinolaryngology, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing 312000, China
| | - J T Xu
- Department of Otorhinolaryngology, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing 312000, China
| | - P Liu
- Department of Otorhinolaryngology, Shaoxing People's Hospital (Shaoxing Hospital of Zhejiang University), Shaoxing 312000, China
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Ma ZJ, Xia XT, Chen SM, Zhao XC, Zeng LL, Xie YL, Chao SY, Xu JT, Sun YG, Li RZ, Guanque ZX, Han JL, Lei CZ. Identification and diversity of Y-chromosome haplotypes in Qinghai yak populations. Anim Genet 2018; 49:618-622. [PMID: 30229981 DOI: 10.1111/age.12723] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2018] [Indexed: 01/12/2023]
Abstract
The aim of the present study was to perform a preliminary analysis of the characterization and diversity of Y-chromosome haplotypes/haplogroups in yak of Qinghai Province, China. A total of 322 male yaks from nine populations belonging to three officially recognized breeds (Gaoyuan, Huanhu and Datong) were sampled. Animals were genotyped using six previously reported Y-SNPs present in the SRY, USP9Y, UTY, AMELY and OFD1Y genes and four new Y-SNPs in the OFD1Y gene (g.569A>C, g.578A>C, g.608G>T and g.653G>C) identified in this study. Seven Y-chromosome haplotypes (H1-H7) were identified according to the combination of the 10 Y-SNPs. H1, H2 and H6 were the most common and shared haplotypes across all yak populations/breeds. Private haplotypes H3 and H7 were detected in the Datong breed; H4 in Guoleimude, Qumalai, Qilian, Tianjun and Ganglong populations; and H5 in Qumalai of Gaoyuan breed. Haplotype clustering and network analyses inferred two haplogroups, Y1 and Y2, indicating two divergent lineages of paternal origins of Qinghai yak. The analysis of molecular variance showed a significant difference among individuals (P < 0.0001) with more than 93% of the total genetic variation present within populations, suggesting a weak genetic structure among Qinghai yak populations. The overall Y-haplotype diversity was 0.538 ± 0.028, showing a relatively high diversity in Qinghai yak. The Gaoyuan and Datong breeds had similar haplotype diversities (0.547 ± 0.030 and 0.553 ± 0.083, respectively), which were higher than that of the Huanhu breed (0.441 ± 0.098). Our results support the conservation and sustainable use of unique yak genetic resources in Qinghai.
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Affiliation(s)
- Z J Ma
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - X T Xia
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - S M Chen
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - X C Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - L L Zeng
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Y L Xie
- Golmud Station of Animal Husbandry and Veterinary, Haixi Autonomous Prefecture of Qinghai Province, Golmud, Qinghai, 816000, China
| | - S Y Chao
- Animal Epidemic Disease Prevention and Control Center, Haixi Autonomous Prefecture of Qinghai Province, Delingha, Qinghai, 817099, China
| | - J T Xu
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - Y G Sun
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - R Z Li
- Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, Qinghai, 810016, China
| | - Z X Guanque
- General Station of Animal Husbandry of Qinghai Province, Xining, 810008, China
| | - J L Han
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
- International Livestock Research Institute (ILRI), Nairobi, 00100, Kenya
| | - C Z Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China
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Dai GP, Xu JT, Liu P, Yu P, Li MJ. [The application of autologous cartilago auriculae in posterior wall of external auditory canal reconstruction and tympanoplasty]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:798-800. [PMID: 29798057 DOI: 10.13201/j.issn.1001-1781.2016.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the value of of autologous cartilago auriculae in posterior wall of external auditory canal reconstruction and tympanoplasty after modified radical mastoidectomy.Method:To determine the outcome of surgery for chronic suppurative otitis media with choleteatoma. The open mastoidectomy and tympanoplasty were performed on sixty patients aged 20-62 years old, and the average age was(43.16±9.43)years old, which includes 31 males and 27 females at our department in the period from September 2011 to September 2014. 58 patients all underwent modified radical mastoidectomy.Study group chose collected intraoperative cortical mastoid bone as a filler combined with autologous cartilago auriculae and temporal fascia muscle-periosteal flap covering the cavity and tympanoplasty.Control group chose collected intraoperative cortical mastoid bone as a filler temporal fascia muscle-periosteal flap covering the cavity. The hearing improvement at the time of achieving dry ear,3 months and 6 months after surgery were evaluated for both groups.Result:There are significant differeence between two groups in improvement of hearing and dry ear time,according to follow-up and analysis of therapeutic efficacy(P <0.05), There was no recurrence of cholesteatoma in 2 groups.Conclusion:The application of autologous cartilago auriculae in posterior wall of external auditory canal reconstruction and tympanoplastycan that can get more in line with the external auditory canal and the volume of physiological structure state of near normal tympanic cavity, dry ear and hearing improvement was satisfied.The autologous cartilago curiculae is suitable for repairing materials of open radical operation.
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Affiliation(s)
- G P Dai
- Department of Otolaryngology,Shaoxing People's Hospital,Shaoxing Hospital of Zhejiang Universty,Shaoxing,312000,China
| | - J T Xu
- Department of Otolaryngology,Shaoxing People's Hospital,Shaoxing Hospital of Zhejiang Universty,Shaoxing,312000,China
| | - P Liu
- Department of Otolaryngology,Shaoxing People's Hospital,Shaoxing Hospital of Zhejiang Universty,Shaoxing,312000,China
| | - P Yu
- Department of Otolaryngology,Shaoxing People's Hospital,Shaoxing Hospital of Zhejiang Universty,Shaoxing,312000,China
| | - M J Li
- Department of Otolaryngology,Shaoxing People's Hospital,Shaoxing Hospital of Zhejiang Universty,Shaoxing,312000,China
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Abstract
SnTe is found to exhibit element-selective resonant state and its thermoelectric performance is predicted to be improved by In-X codoping.
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Affiliation(s)
- X. J. Tan
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - G. Q. Liu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - J. T. Xu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - H. Z. Shao
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - J. Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - H. C. Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
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Tan XJ, Shao HZ, He J, Liu GQ, Xu JT, Jiang J, Jiang HC. Band engineering and improved thermoelectric performance in M-doped SnTe (M = Mg, Mn, Cd, and Hg). Phys Chem Chem Phys 2016; 18:7141-7. [DOI: 10.1039/c5cp07620j] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sn vacancy is found to play an important role in the band engineering and thermoelectric performance of SnTe.
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Affiliation(s)
- X. J. Tan
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - H. Z. Shao
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - J. He
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - G. Q. Liu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - J. T. Xu
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - J. Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
| | - H. C. Jiang
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Science
- Ningbo 315201
- China
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Abstract
To further explore Y-STR INRA189 polymorphisms in the yak, and to determine the genetic differences among yak breeds, genotyping analysis of INRA189 in 102 male yak individuals from three yak breeds in Qinghai Province of China was performed. Genotyping revealed the presence of four alleles, with sizes of 149, 155, 157, and 159 bp, respectively. Of these, the 157-bp allele, which was found with the highest frequency in the three yak breeds, was the dominant allele. Interestingly, the 149-bp allele was only detected in the Gaoyuan breed, and the 159-bp allele was only found in the Huanhu and Datong breeds. Only the 157- and 155-bp alleles were found in all three yak breeds. Taking the three yak breeds as a single population, the frequency of these four alleles was 0.0294, 0.0686, 0.8628, and 0.0392, respectively. The average polymorphism information content in the three yak breeds was 0.2379, indicating that the INRA189 was a low polymorphic Y-STR marker in yak.
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Affiliation(s)
- Z J Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, China.,Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
| | - S M Chen
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
| | - Y G Sun
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
| | - Y L Xi
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - R Z Li
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
| | - J T Xu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, China
| | - C Z Lei
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
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Wu F, Tian W, Zhang J, Wang S, Wan QX, Dai JN, Wu ZH, Xu JT, Li XY, Fang YY, Chen CQ. Double-resonance enhanced intersubband second-order nonlinear optical susceptibilities in GaN/AlGaN step quantum wells. Opt Express 2014; 22:14212-14220. [PMID: 24977518 DOI: 10.1364/oe.22.014212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Second-order nonlinear optical susceptibilities for second harmonic generation (SHG) associated with intersubband transitions in GaN/AlGaN single quantum well and step quantum well have been studied theoretically by solving Schrödinger and Poisson equations self-consistently. The calculated results suggest that due to the very large polarization-induced field in the quantum well, the potential profile becomes asymmetrical, leading to large second-order susceptibilities. A high value about 4 × 10-7 m/V can be obtained in single quantum well structure. Furthermore, by adopting step quantum well structure to increase the asymmetry degree of the potential profile and manipulate the energy levels for double-resonance, a significant enhancement of second-order susceptibility can occur in step quantum well. Specifically, the susceptibility can be as large as 4 × 10-6 m/V with structure optimization, about an order of magnitude greater than that in single quantum well. The results indicate that nonlinear optical elements based on GaN/AlGaN step quantum wells are very promising for SHG in a wide range of wavelengths from telecommunication to mid-infrared, especially effective in longer wavelength.
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Liu H, Bao XL, Lv Y, Xu JT, Guo ST. Separation and Evaluation of Soybean Protein Hydrolysates Prepared by Immobilized Metal Ion Affinity Chromatography with Different Metal Ions. J Chromatogr Sci 2012; 50:714-20. [DOI: 10.1093/chromsci/bms071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Affiliation(s)
- J. T. Xu
- a Department of Polymer Science & Engineering , Zhejiang University , Hangzhou, 310027, China
- b Department of Chemistry , The University of Sheffield , Brookhill, Sheffield, S3 7HF, UK
| | - F. Wu
- a Department of Polymer Science & Engineering , Zhejiang University , Hangzhou, 310027, China
| | - Z. Q. Fan
- a Department of Polymer Science & Engineering , Zhejiang University , Hangzhou, 310027, China
| | - A. J. Ryan
- b Department of Chemistry , The University of Sheffield , Brookhill, Sheffield, S3 7HF, UK
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Xu JT, Ryan AJ, Mai SM, Yuan JJ, Cheng SY. Diffusion Control of Homogeneous Crystallization in Nanoconfined Domains of Block Copolymers. J MACROMOL SCI B 2006. [DOI: 10.1081/mb-120030014] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- J. T. Xu
- a Department of Polymer Science and Engineering , Zhejiang University , Hangzhou , 310027 , China
| | - A. J. Ryan
- b Department of Chemistry, The Polymer Centre , The University of Sheffield , Sheffield , UK
| | - S. M. Mai
- b Department of Chemistry, The Polymer Centre , The University of Sheffield , Sheffield , UK
| | - J. J. Yuan
- c College of Chemistry and Materials Science , Hubei University , Wuhan , China
| | - S. Y. Cheng
- c College of Chemistry and Materials Science , Hubei University , Wuhan , China
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Wang XT, Wu LL, Sun YP, Bai H, Gao ZF, Xu JT. [Roles of Galphaq/11 mediated- and platelet-derived growth factor mediated-signal transduction pathways in rat aorta restenosis]. Sheng Li Xue Bao 2001; 53:231-4. [PMID: 12589410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
To observe the roles of Galphaq/11 mediated- and platelet-derived growth factor (PDGF) mediated-signal transduction pathways in proliferation and migration of vascular smooth muscle cells (VSMC) after arterial injury, a vascular cell proliferation model was established by balloon injury in rat aorta and the morphologic changes in injured vascular walls after the injury were studied. Activities of angiotensin converting enzyme (ACE) and aorta phospholipase C (PLC) were tested, and levels of platelet-derived growth factor receptor-beta (PDGFR-beta) and Galphaq/11 protein were measured by Western blot analysis. At l day after operation, injured aortic segments showed denudation in endothelial cells. Medial VSMC proliferation and intimal hyperplasia were not observed. As compared with the sham group, ACE activities were increased by 382.7 percent; (P<0.0l), but the expression of PDGFR-beta and PLC activities did not show significant changes (P>0.05). In addition, the level of Galphaq/11 protein was decreased by 20.0 percent; (P<0. 05). At l4 days after operation, sections of injured aorta showed marked intimal thickening with large numbers of VMSCs proliferating throughout intima and media. In comparison with the sham group, ACE activity, PLC activity and the level of PDGFR-beta were increased by 420.2 percent; (P<0.01), 186.2 percent; (P<0.05) and 85.0 percent; (P<0.05), respectively. While the level of Galphaq/11 protein was decreased by 33.1 percent; (P<0.01). The above data suggest that the PDGF-mediated signal transduction pathway plays an important role in VSMC proliferation.
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Affiliation(s)
- X T Wang
- Department of Pathophysiology, Health Science Center, Peking University, Beijing 100083
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Xu JT. [The changes of cell structure in the courses of Armillaria mellea penetrating the nutritional stems of Gastrodia elata]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:150-3. [PMID: 12905892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
OBJECTIVE To study the cell structure changes of Gastrodia elata after Armillaria mellea infection as well as the nutritional resource of this important medicinal plant. METHOD Observation of the serial sections on the nutritional stems of G. elata, and measure new corms of G. elata when cut off the old corms connection with rhizomorph of A. mellea. RESULT After G. elata nutritional stems infected by A. mellea, the rhizomorph of A. mellea separate into several hyphal layers and penetrate hyphal stream which infect into the cells of cortex layer in the direction of outside and infect directly into layer cells in the direction of inside, these hypha can be used the nutrition of G. elata the new corms will be stop growth if cut off the rhizomorph of A. mellea connected with G. elata. CONCLUSION After the rhizomorph of A. mellea infected G. elata nutritional stems, hyphal coils and the hyphal stream will breakthrough passage cells as well as large cells surround the whole nutritional stems, so the passage cells is the key nutritional resource in the whole growth period of G. elata.
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Affiliation(s)
- J T Xu
- Department of Mycology, Institute of Medicinal Plant Development, CAMS, PUMC, Beijing 100094, China.
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Xu JT, Zhao W, Tu HY. [Effect of injection of plasmid DNAs into frog skeletal muscle on twitch force and tetanic force]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2000; 16:309, 320. [PMID: 11236683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Wang L, Feng LX, Xu JT, Yang SL. Studies on VOCl3/MgCl2/NaY/Al2Et3Cl3 complex support catalysts for the copolymerization of ethylene and propylene. J Appl Polym Sci 1994. [DOI: 10.1002/app.1994.070541003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
In nine rhesus monkeys, human corneal grafts were used for penetrating keratoplasty in one eye of each. The data were divided into three groups according to the size of grafts. Group 1 (n = 3) received 5.5-mm human corneal grafts in 5.0-mm recipient beds; group 2 (n = 3) received 6.2-mm human corneal grafts in 6.0-mm beds; and group 3 (n = 3) received 7.5-mm grafts in 7.0-mm beds. Five of nine eyes in groups 1 and 2 (55%) maintained graft clarity for more than 1 year, but only two of the three in group 1 maintained clear human corneal grafts for 32 and 36 months, respectively. However, the three grafts in the third group maintained transparency for only 4-7 months. Our findings suggest that xenogeneic corneal grafts may have a greater success rate in humans than previously believed.
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Affiliation(s)
- C Li
- Department of Ophthalmology, Medical College, Jinan University, Guangzhou, People's Republic of China
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Guo A, Ohia E, Xu JT, Bhattacherjee P, Kulkarni P. Effects of anti-inflammatory and immunosuppressive drugs on the heterolamellar corneal transplantation in rabbits. Curr Eye Res 1990; 9:749-57. [PMID: 2125906 DOI: 10.3109/02713689008999570] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We have studied the graft rejection of bovine lamellar cornea transplanted onto the rabbit cornea. In addition, the effect of inhibitors of arachidonic acid metabolism and immunosuppressive agents on this heterolamellar corneal transplant was investigated. The corneal lamellar transplant treated with saline were rejected at 9 +/- 1.4 day with 100% rejection rate. The postsurgical conjunctival hyperemia and edema occurred within 2-3 days. Corneal neovascularization took 5 to 9 days to reach the region of the graft. Intramuscular cyclosporin A (25mg/kg/day) and dexamethasone (0.1%) applied topically for 20 days (t.i.d.) inhibited the corneal opacity, edema, neovascularization and graft rejection. Topical Dexamethasone in the ipsilateral eye prolonged survival of grafts in the contralateral (untreated) eye. Cyclosporin A and dexamethasone probably inhibited the graft rejection process by their immunosuppressive action. Indomethacin and BW755C, respective cyclooxygenase and lipoxygenase inhibitors, applied topically did not inhibit graft rejection process while inhibiting postsurgical inflammatory response.
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Affiliation(s)
- A Guo
- Department of Ophthalmology and Visual Sciences, University of Louisville, KY
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Xu JT. [Studies on the life cycle of Gastrodia elata]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1989; 11:237-41. [PMID: 2532966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Seeds of G. elata are strongly reduced small structures. They lack nutrient tissues entirely. A small embryo is surrounded by a single-layered seed coat with a very loose structure. Digestion of certain kinds of fungi (Mycena osmundicola, etc) which have invaded the embryonic cells provides the necessary nutrition to sprout. Protocorms obtain their nutrition from invading Armillaria mellea and then go on to vegetative propagation, becoming small, white G. elata within a year. The commercial arrow G. elata can be obtained late in the year. Over the winter, it will bud, blossom and bear fruit, following in the next year. Taking three years to complete its life cycle, G. elasta depends upon the digestion of certain kinds of fungi----Mycena osmundicola, A. mellea, etc.
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Ran YZ, Xu JT. [Studies on the inhibition of seed germination of Gastrodia elata Bl. by Armillaria mellea Qul]. Zhong Yao Tong Bao 1988; 13:15-7, 62. [PMID: 3252984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Xu JT, Li C. [Experimental study of penetrating heterograft of the cornea]. Yan Ke Xue Bao 1987; 3:52-6. [PMID: 3149592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Xu JT. [A brief report on the nutrition sources of seed germination of Gastrodia elata (author's transl)]. Zhong Yao Tong Bao 1981; 6:2. [PMID: 6211264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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