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Jia B, Fei C, Ren J, Wang M, He JL, Xu ZC, Lu YF, Qi L, Liao YH, Qiao F. [Clinical study of digital six-axis external fixation frame based on CT data for tibiofibular fractures]. Zhonghua Wai Ke Za Zhi 2022; 60:552-557. [PMID: 35658342 DOI: 10.3760/cma.j.cn112139-20211206-00580] [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: 06/15/2023]
Abstract
Objective: To investigate the clinical effect of applying the digital six-axis external fixation frame based on CT data in the treatment of tibiofibular fractures. Methods: The clinical data of 43 patients with tibiofibular fractures treated by the self-developed digital six-axis external fixation frame based on CT data at Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital from January 2018 to January 2021 were retrospective analysis.There were 27 males and 16 females,aged (36.0±9.4) years(range:25 to 50 years).AO classification:15 cases of 42A,11 cases of 42B, and 17 cases of 42C.There were 7 open fractures and Gustilo fracture classification:2 cases of type Ⅰ,4 cases of type Ⅱ,and 1 case of type Ⅲ.The two or three plane rings were connected with six connecting rods to form a complete six-axis external fixation frame,and the distal and proximal fracture blocks were connected to the distal and proximal rings by fixation pins,and the lengths of the six connecting rods needed to be adjusted were calculated by using the supporting software according to the CT data after surgery,and then the lengths of the connecting rods were adjusted one by one to complete the reduction of the fracture. The reduction accuracy of this six-axis external fixation brace was evaluated by measuring postoperative radiographs; postoperative recovery and complications were collected,the time of brace removal was recorded,and the function of the affected limb was evaluated according to the Johner-Wruhs score at the final follow-up. Results: Postoperative radiographs showed that all patients achieved satisfactory reduction with lateral displacement(M(IQR)) of 2.3(2.5) mm (range:0.3 to 7.3 mm),anteroposterior displacement of 2.1 (2.4) mm (range:0.3 to 5.7 mm),anteroposterior angulation of 2.5(2.4)°(range:0 to 5°),internal and external angulation of 2.1(1.5)°(range:0 to 4°), and no significant internal or external rotational deformity was detected on the exterior.On the second postoperative day,all patients were able to walk with partial weight-bearing on crutches. All 43 patients were followed up for more than 6 months,with a follow-up period of (33.3±7.3) weeks (range:24 to 42 weeks).The external fixation frame was removed after the fracture healed.The external frame was removed at 20(3)weeks (range:18 to 25 weeks) postoperatively. Up to the final follow up, no secondary fracture occurred in any of them.The Johner-Wruhs score of the affected limb at the last follow-up was excellent in 39 cases and good in 4 cases. Conclusion: The digital six-axis external fixator based on CT data for tibiofibular fractures has the advantages of precise reduction,firm fixation,simple operation,rapid fracture healing,and minimal trauma, which is a minimally invasive method for treating tibiofibular fractures,especially suitable for patients with poor skin and soft tissue conditions such as open injuries.
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Affiliation(s)
- B Jia
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - C Fei
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - J Ren
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - M Wang
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - J L He
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Z C Xu
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Y F Lu
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - L Qi
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Y H Liao
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - F Qiao
- Integrated Orthopedic Department of Traditional Chinese Medicine (TCM) and Western Medicine,HongHui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
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Gong TF, He JL, Tan L, Xie LX, Liu W. [Genetic diversity of Sparganum isolates from snakes in Hunan Province based on mitochondrial nad4 and nad5 genes]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:35-39. [PMID: 33660472 DOI: 10.16250/j.32.1374.2020305] [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] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the genetic diversity and phylogenetic relationship of Sparganum isolates from snakes in Hunan Province. METHODS The partial mitochondrial NADH dehydrogenase subunit 4 (pnad4) and NADH dehydrogenase subunit 5 (pnad5) genes were amplified using a PCR assay in 7 Sparganum isolates from snakes in Hunan Province and the amplification product was sequenced. The homology and genetic evolution were investigated using the software DNAMAN 7.0, MegAlign, DnaSP 5.0 and MEGA 5.0. RESULTS The pnad4 and pnad5 gene sequences were approximately 578 bp and 484 bp in length in the 7 Sparganum isolates from Hunan Province, and the percentages of genetic variations were 0 to 2.8% and 0 to 0.8%, respectively. There were 4 haplotypes detected in both the pnad4 and pnad5 genes, with global haplotype diversities of 0.810 ± 0.016 and 0.905 ± 0.011, nucleotide diversities of 0.006 ± 0.005 and 0.004 ± 0.003, and mean nucleotide variations of 3.960 and 1.905, respectively. Phylogenetic analysis showed that all 7 Sparganum isolates from snakes in Hunan Province were clustered into the same branch with Spirometra erinaceieuropaei isolates from different regions/hosts in the world, which belonged to S. erinaceieuropaei, which were close to Diphyllobothrium latum and far from other tapeworms. CONCLUSIONS There is a low genetic variation in snake-derived S. erinaceieuropaei isolates from Hunan Province, and both pnad4 and pnad5 genes may be potential molecular genetic markers for identification of S. erinaceieuropaei.
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Affiliation(s)
- T F Gong
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - J L He
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - L Tan
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - L X Xie
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - W Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
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Li S, Lu G, Wang D, He JL, Zuo L, Wang H, Gu ZT, Zhou JS, Yan FL, Deng QW. MicroRNA-4443 regulates monocyte activation by targeting tumor necrosis factor receptor associated factor 4 in stroke-induced immunosuppression. Eur J Neurol 2020; 27:1625-1637. [PMID: 32337817 DOI: 10.1111/ene.14282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND PURPOSE MicroRNAs (miRNAs) have been demonstrated to play crucial roles in the early stage of acute ischaemic stroke (AIS). The purpose of this study was to investigate the expression patterns of miRNAs in peripheral blood mononuclear cells (PBMCs) from AIS patients and further explore related molecular mechanisms in stroke-induced immunodeficiency syndrome (SIDS). METHODS The miRNA expression patterns of PBMCs were detected by miRNA microarray and validated by quantitative real-time polymerase chain reaction (qRT-PCR) in AIS patients and healthy controls. Bioinformatics methods and luciferase reporter assays were used to detect the downstream target genes. Following stimulation with lipopolysaccharide and interleukin-4, the expression of miR-4443, tumor necrosis factor receptor associated factor 4 (TRAF4) and the nuclear factor kappa B (NF-κB) pathway were evaluated. Furthermore, transfection with miR-4443 mimic or inhibitor in the monocytes was carried out to gain insight into the mechanisms in SIDS. RESULTS Interleukin-10 in AIS patients was significantly higher than that of healthy controls. The miRNA microarray analysis and qRTPCR validation showed that only miR-4443 was upregulated expressed in PBMCs from AIS patients, especially in monocytes. miR-4443 was shown to directly interact with the 3' untranslated regions of TRAF4, resulting in suppression of TRAF4 protein expression. Furthermore, the expression of miR-4443 and TRAF4 was regulated by stimulation with lipopolysaccharide or interleukin-4. Additionally, overexpression of miR-4443 suppressed the TRAF4/Iκα/NF-κB signaling pathway to activate the expression of anti-inflammatory cytokines in monocytes. CONCLUSIONS The increased expression of miR-4443 induced monocyte dysfunction by targeting TRAF4, which may function as a crucial mediator in SIDS.
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Affiliation(s)
- S Li
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - G Lu
- Department of Neurology, Dezhou People's Hospital, Dezhou, China
| | - D Wang
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - J L He
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - L Zuo
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - H Wang
- Department of Respiratory, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Z T Gu
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - J S Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - F L Yan
- Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Q W Deng
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Mou JJ, Qi MY, Li CS, Zheng HY, Chen M, Zhou JH, He JL, Xu WW, Xu ST, Xu XG. [Characterization analysis of gM, gL genes of varicella zoster virus in six provinces of China]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:419-423. [PMID: 29614611 DOI: 10.3760/cma.j.issn.0253-9624.2018.04.016] [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] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the genetic characterization of glycoprotein M(gM.),glycoprotein L(gL) of varicella zoster virus. Methods: According to the program of "Ministry of Science and Technology of China" , Based on the 12 suspected VZV patients monitored in Beijing (1 case), Shanghai (5 cases), Jilin (2 cases), Qinghai (1 case), Guangdong (2 case) and Sichuan (case) in 2007-2015. A total of 12 Vesicle fluid and throat swab samples were collected. Positive samples were identified by Agarose gel electrophoresis and two glycoprotein genes were amplified by polymerase chain reaction (PCR). Nucleotide sequences were determined and analyzed by PCR amplification of VZV positive specimens V-OKA-BK of the domestic varicella attenuated live vaccine and the Varilrix-1 of the imported attenuated live vaccine. Nucleotide sequences of VZV positive specimens, vaccine strains (V-OKA-BK, varilrix-1) and GenBank foreign wild strains (41 strains), parent strains (P-oka), vaccine strains (V-oka, Varilrix, Varivax) were compared using BioEdit and MEGA 5.0. Results: 12 specimens were VZV positive. Compared with the vaccine strains and the parent strains, the GM gene of 1 positive specimen had radical mutation at 86686 sites, which resulted in amino acid mutation, 5 positive specimens had base mutation at 87844 sites, and 30 strains of foreign wild strains had the same variation at 87 844 sites. 1 positive specimens of gL gene in 101245 sites had base mutation, and led to amino acid mutation, 6 positive specimens at 101624, 101625, 101626 sites had base of loss and the foreign wild strains in these 3 sites had the same variation. Compared with the vaccine strains, the nucleotide and amino acid homology of gM of 12 VZV positive specimens were 99.2%-100% and 98.2%-100%, respectively, and gL of those were 99.3%-100% and 98.6%-100%, respectively. Compared with 41 strains of foreign wild strains, homology of gM's nucleotides and amino acid were 99.3%-100% and 98.5%-100%, respectively; 99.1%-100% and 98.6%-100% for gL. The results of phylogenetic analysis showed that 7 VZV positive samples were on the same branch with 4 vaccine strains and p-oka strain. Based on gL, 12 VZV positive samples were on the same branch as the vaccine strains and p-oka strain. Conclusion: This study demonstrates that the genes of gM, gL are highly conserved and remain stable immunogen, which may be involved in the attenuation of VZV and need to be further researched.
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Affiliation(s)
- J J Mou
- Institute of Integrative Medicine of Dalian Medical University, Dalian 116044, China
| | - M Y Qi
- Institute of Integrative Medicine of Dalian Medical University, Dalian 116044, China
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Zhang Z, Xu ZQ, Luo YY, Zhang HB, Gao N, He JL, Ji CL, Zhang DX, Li JQ, Zhang XQ. Whole genomic prediction of growth and carcass traits in a Chinese quality chicken population. J Anim Sci 2017; 95:72-80. [PMID: 28177394 DOI: 10.2527/jas.2016.0823] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
By incorporating high-density markers into breeding value prediction models, the whole genomic prediction (WGP) method can effectively accelerate genetic improvement in livestock breeding. However, the performance of WGP varies across species and populations and is affected by the underlying genetic architecture. In particular, very little is known about the performance of WGP for many chicken breeds. Here we estimate the genetic parameters and evaluate the performance of WGP for 18 growth and carcass traits in a Chinese quality chicken population. In total, 435 chickens were systematically phenotyped and genotyped using a 600K genotyping array. Two variance component estimation scenarios, 3 breeding value prediction methods, and 2 validation procedures were compared. The results showed that the heritability of these 18 traits was medium to high (ranging from 0.28 to 0.60) and that deviations existed between the heritability estimated from pedigrees and markers. Compared with conventional breeding methods, WGP could potentially increase the selection accuracy by 20% or more depending on the prediction model used, the trait under consideration, and the genetic connectedness between the training and validation individuals. Our results showed the potential of implementing genomic selection in small breeding herds.
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Yang Z, Li X, Li J, Long JD, Lan CH, Wang T, Dong P, He JL. Note: Self-biased voltage to suppress secondary electrons by a ZnO varistor in a compact pulsed neutron generator. Rev Sci Instrum 2017; 88:036106. [PMID: 28372413 DOI: 10.1063/1.4978797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A large amount of back streaming electrons will bring about a part of current drain on power supply, cause sparking or high-voltage breakdowns, and affect the neutron yield and waveform for a compact sealed-tube pulsed neutron generator. A novel idea which uses a ZnO varistor to provide a constant self-biased voltage to suppress the secondary electrons is introduced. The I-V curve for the ZnO varistor was measured in the experiment. The effects of suppressing the secondary electrons were investigated using a ZnO varistor, linear resistors, and an independent power supply, respectively. The results show that the secondary electrons are suppressed effectively by the compact ZnO varistor, while not increasing the size and the component of the device. It is a promising design for compact sealed-tube neutron generators.
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Affiliation(s)
- Z Yang
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - X Li
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - J Li
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - J D Long
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - C H Lan
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - T Wang
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - P Dong
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
| | - J L He
- Institute of Fluid Physics, CAEP, P.O. Box 919-106, Mianyang 621900, China
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Abstract
This study systematically reviews prospective and retrospective cohort studies evaluating the risk of hip fracture following stroke. Stroke survivors are at high risk of hip fracture and had a 1.5-fold increased risk compared to stroke-free men and women of the same age. Hip fracture often occurs in ageing and female stroke patients. We performed a meta-analysis to summarize evidence from prospective and retrospective cohort studies about the risk of hip fracture following stroke. We identified English and non-English publications in MEDLINE and EMBASE using stroke and fracture as keywords to 31 December 2015. The data of the incidence of hip fracture were extracted to calculate raw incident rate in stroke survivors as well as risk of hip fractures in strokes comparing populations using a random-effects model. Subgroup analyses were performed to identify the potential influence of some factors. Six prospective and seven retrospective cohort studies were included, involving 512,214 stroke patients with 22,559 hip fractures. The pooled prevalence of hip fractures was 4.87 % (95 % CI, 4.05 to 5.68 %) in stoke patients. We conducted subgroup analysis according to sex, age, duration of follow-up, study design, and region, which showed that female (vs. male) stroke patients older than 70 years (vs. those less than 70 years) and duration of follow-up more than 2 years (vs. those less than 2 years) have higher proportions of hip fractures. Four studies showed that stroke patients had a significantly higher risk of hip fracture compared with the general population, while the other study had a non-significant higher risk. The overall prevalence of hip fracture was 3.28 % (3431 of 104,646) in stroke patients and 2.83 % (36,493 of 1,287,726) in general population, respectively, and the unadjusted combined relative risk of hip fracture was 1.54 (95 % CI, 1.06-2.25). Hip fractures often occur in ageing and female stroke patients.
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Affiliation(s)
- Z-C Yuan
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China
| | - H Mo
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China
| | - J Guan
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China
| | - J-L He
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China
| | - Z-J Wu
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China.
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Lan CH, Long JD, Zheng L, Dong P, Yang Z, Li J, Wang T, He JL. Note: Triggering behavior of a vacuum arc plasma source. Rev Sci Instrum 2016; 87:086105. [PMID: 27587176 DOI: 10.1063/1.4959980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Axial symmetry of discharge is very important for application of vacuum arc plasma. It is discovered that the triggering method is a significant factor that would influence the symmetry of arc discharge at the final stable stage. Using high-speed multiframe photography, the transition processes from cathode-trigger discharge to cathode-anode discharge were observed. It is shown that the performances of the two triggering methods investigated are quite different. Arc discharge triggered by independent electric source can be stabilized at the center of anode grid, but it is difficult to achieve such good symmetry through resistance triggering. It is also found that the triggering process is highly correlated to the behavior of emitted electrons.
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Affiliation(s)
- C H Lan
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - J D Long
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - L Zheng
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - P Dong
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - Z Yang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - J Li
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - T Wang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
| | - J L He
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang 621900, People's Republic of China
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Li XX, Li GL, He JL. [The principle and application of TCR gene mutation test]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:478-480. [PMID: 27514567 DOI: 10.3760/cma.j.issn.1001-9391.2016.06.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Li AN, Dong F, He JL, Shang DW, Guo W, Li WB, Lu W, Wang CY. The Elimination Rate after Clozapine Overdose in Chinese Schizophrenia Patients: A Population Pharmacokinetics Model Study. Pharmacopsychiatry 2015; 48:e2. [PMID: 26110329 DOI: 10.1055/s-0035-1555803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- A-N Li
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - F Dong
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - J-L He
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - D-W Shang
- Guangzhou Brain Hospital, Guangzhou Huiai Hospital, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - W Guo
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - W-B Li
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - W Lu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - C-Y Wang
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
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Li AN, Dong F, He JL, Shang DW, Guo W, Li WB, Lu W, Wang CY. The Elimination Rate after Clozapine Overdose in Chinese Schizophrenia Patients: A Population Pharmacokinetics Model Study. Pharmacopsychiatry 2015; 48:150-5. [PMID: 26079968 DOI: 10.1055/s-0035-1554672] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION The prescribing of clozapine in China is common because of its outstanding efficacy and low price. There have been many cases of clozapine overdose in China. However, studies about the pharmacokinetics after overdose in the Chinese have rarely been reported. Population pharmacokinetics (PopPK) can analyze sparse data, and it is appropriate to compute clozapine pharmacokinetics after overdose. METHODS There were 47 clozapine overdose cases. We constructed a single-compartment first-order elimination PopPK model. We also considered some covariates that can influence the pharmacokinetics parameters. RESULTS 21 cases were included in the analysis. When the reported toxic dosage was 3,740 mg, the elimination rate constant of the population was 0.0258(h(-1)). The elimination half-life was 26.9 h. The coefficient of random variation was 17%. DISCUSSION PopPK can solve the problem of sparse data after overdose. The area under the concentration-time curve after clozapine overdose exhibited the "two peaks phenomenon." The reported toxic dosage could impact clozapine elimination after overdose. Delayed absorption of clozapine is the best explanation for this finding.
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Affiliation(s)
- A-N Li
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - F Dong
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - J-L He
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - D-W Shang
- Guangzhou Brain Hospital, Guangzhou Huiai Hospital, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| | - W Guo
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - W-B Li
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
| | - W Lu
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - C-Y Wang
- Beijing Key Laboratory of Mental Disorders, Department of Psychiatry, Beijing Anding Hospital, Capital Medical University, Beijing, China
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Liu CJ, Sun B, Guo J, He JL, Feng B, Wang HG, Cao KK, Liu T, Shen DX. A case of bone marrow infection by Staphylococcus saccharolyticus. Eur Rev Med Pharmacol Sci 2015; 19:1161-1163. [PMID: 25912574] [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: 06/04/2023]
Abstract
We report a case of fatal bone marrow infection caused by Staphylococcus saccharolyticus in a 26 year old female. The causative organism was isolated by anaerobic culture on blood agar, and was identified by PCR amplification of the gap gene and genotyping of the resultant sequence.
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Affiliation(s)
- C-J Liu
- Clinical Laboratory, The 261st Hospital of The People's Liberation Army, Beijing, China.
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Wu ZJ, He JL, Wei RQ, Liu B, Lin X, Guan J, Lan YB. C-reactive protein and risk of fracture: a systematic review and dose-response meta-analysis of prospective cohort studies. Osteoporos Int 2015; 26:49-57. [PMID: 25107320 DOI: 10.1007/s00198-014-2826-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 07/25/2014] [Indexed: 01/11/2023]
Abstract
UNLABELLED This study systematically reviews prospective cohort studies evaluating the relationship between C-reactive protein (CRP) concentrations and subsequent fracture risk. The positive association cannot completely explain the existing evidence, and further studies are needed to demonstrate the shape of the association. INTRODUCTION We aimed to perform a systematic review and dose-response meta-analysis of published prospective studies evaluating associations of high-sensitivity CRP (hs-CRP) levels with fracture risk in general populations. METHODS We identified relevant studies by searching MEDLINE and EMBASE databases from their inception to May 20, 2014. We included published prospective studies evaluating the associations of hs-CRP levels with risk of fracture in general populations. Two reviewers working independently abstracted the data. RESULTS Eight prospective cohort studies involving 34,840 participants and 3,407 incident fracture events were eligible for the present analyses. A meta-analysis of six prospective studies showed that the overall risk for incident fracture in a comparison of individuals in the top tertile with those in the bottom tertile of baseline hs-CRP levels was 2.14 [95% confidence interval (CI) 1.51-3.05, I(2) = 62.3%]. The moderate heterogeneous disappeared when one study was excluded. However, the remaining two studies reported inconsistent results. One study with the biggest sample size showed a U-shaped association for CRP and fracture risk (the association was positive when CRP > 1 mg/L). Similarly, another study reported that per doubling of CRP was positive only when CRP > 3 mg/L. CONCLUSION In summary, the present analysis showed that the relationship between CRP concentrations and subsequent fracture risk is still inconsistent. The positive association cannot completely explain the existing evidence, and further larger prospective cohorts with more power are needed to demonstrate the shape of the association, especially for the relatively low CRP concentrations, such as less than 3 mg/L.
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Affiliation(s)
- Z-J Wu
- Department of Bone and Soft Tissue Neurosurgery, Affiliated Tumor Hospital of Guangxi Medical University, He Di Rd. #71, Nanning, 530021, People's Republic of China
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14
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Feng TL, Zhao SZ, Yang KJ, Li GQ, Li DC, Zhao J, Qiao WC, Hou J, Yang Y, He JL, Zheng LH, Wang QG, Xu XD, Su LB, Xu J. Diode-pumped continuous wave tunable and graphene Q-switched Tm:LSO lasers. Opt Express 2013; 21:24665-24673. [PMID: 24150310 DOI: 10.1364/oe.21.024665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We have investigated the lasing characteristics of Tm:LSO crystal in three operation regimes: continuous wave (CW), wavelength tunable and passive Q-switching based on graphene. In CW regime, a maximum output power of 0.65 W at 2054.9 nm with a slope efficiency of 21% was achieved. With a quartz plate, a broad wavelength tunable range of 145 nm was obtained, corresponding to a FWHM of 100 nm. By using a graphene saturable absorber mirror, the passively Q-switched Tm:LSO laser produced pulses with duration of 7.8 μs at 2030.8 nm under a repetition rate of 7.6 kHz, corresponding to pulse energy of 14.0 μJ.
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15
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Chen F, He JL, Zheng M, Zhu HH, Li SP, Wang K, Zhang XX, Zhao YR, Wu SS, Chen Z. Complementary laboratory indices for predicting the disease status of patients with hepatitis B virus infection. J Viral Hepat 2013; 20:566-74. [PMID: 23808995 DOI: 10.1111/jvh.12067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 12/02/2012] [Indexed: 01/05/2023]
Abstract
To identify complementary laboratory indices for determining the disease status of patients with hepatitis B virus. Subjects were divided into six groups: hepatitis B virus carrier, mild chronic hepatitis B, moderate chronic hepatitis B, severe chronic hepatitis B, fulminant hepatitis B and healthy controls. Serum alanine aminotransferase, total bilirubin and direct bilirubin were measured by an automatic analyser. The levels of T-cell immunoglobulin domain and mucin-domain-containing molecule-3, macrophage inflammatory protein 2, neutrophil gelatinase-associated lipocalin and inducible nitric oxide synthase were measured by ELISA. T-cell immunoglobulin domain, mucin-domain-containing molecule-3, macrophage inflammatory protein 2 and inducible nitric oxide synthase levels were significantly higher in patients with severe chronic hepatitis B compared with those in patients with mild and moderate chronic hepatitis B or fulminant hepatitis B (P < 0.05). When normal or abnormal alanine aminotransferase was present, significant differences between macrophage inflammatory protein 2 and T-cell immunoglobulin domain and mucin-domain-containing molecule-3 levels between patients with mild, moderate, severe chronic hepatitis B or fulminant hepatitis B were observed (P < 0.05). Our results suggest that T-cell immunoglobulin domain and mucin-domain-containing molecule-3 and macrophage inflammatory protein 2 could serve as alanine aminotransferase, direct bilirubin or total bilirubin complementary indices for determining the status of patients with hepatitis B.
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Affiliation(s)
- F Chen
- State Key Laboratory of Infectious Disease Diagnosis and Treatment, First Affiliated Hospital, College of Medicine, Zhejiang University, Key Laboratory of Infectious Diseases, Zhejiang, China
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16
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Gao ZL, Liu SD, Zhang JJ, Zhang SJ, Zhang WG, He JL, Tao XT. Self-frequency-doubled BaTeMo2O9 Raman laser emitting at 589 nm. Opt Express 2013; 21:7821-7827. [PMID: 23546163 DOI: 10.1364/oe.21.007821] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper, the spontaneous Raman spectra and second harmonic generation (SHG) properties at 589 nm of a novel Raman crystal BaTeMo(2)O(9) (BTM) were investigated. The BTM crystal was cut along the type-II SHG phase-matching direction for the first-order Raman shift at 1178 nm to realize the SRS and SHG simultaneously. Pumped by a nanosecond 1064 nm laser source, a self-frequency-doubled BTM Raman laser operating at 589 nm has been demonstrated for the first time. At the pump pulse energy of 48 mJ, the maximum yellow laser output pulse energy of 5.6 mJ was obtained with an optical-to-optical conversion efficiency of 11.7%. Our results show that BTM crystal is one of the promising candidate Raman materials to generate yellow laser radiation.
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Affiliation(s)
- Z L Gao
- State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China
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17
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Liu SD, Zheng LH, He JL, Xu J, Xu XD, Su LB, Yang KJ, Zhang BT, Wang RH, Liu XM. Passively Q-switched Nd:Sc0.2Y0.8SiO5 dual-wavelength laser with the orthogonally polarized output. Opt Express 2012; 20:22448-22453. [PMID: 23037393 DOI: 10.1364/oe.20.022448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We have demonstrated a laser-diode pumped continuous-wave (CW) and passively Q-switched laser with a Nd:Sc(0.2)Y(0.8)SiO(5) (Nd:SYSO) crystal for the first time. In the CW operation, the laser was found to oscillate in tri-wavelength regime at 1074.8 nm, 1076.6 nm and 1078.2 nm, respectively. The maximum CW output power of 1.96 W was obtained, giving an optical-to-optical conversion efficiency of 35% and a slope efficiency of 39%. Using either Cr(4+):YAG or V(3+):YAG crystal as saturable absorber, stable passively Q-switched laser was obtained at dual-wavelength of 1074.8 nm and 1078.2 nm with orthogonal-polarization. The maximum average output power, pulse repetition rate, and shortest pulse width were 1.03 W, 50 kHz, and 24 ns, respectively. The passively Q-switched dual-wavelength laser could be potentially used as a source for generation of terahertz radiation.
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Affiliation(s)
- S D Liu
- State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China
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18
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Ding YB, He JL, Liu XQ, Chen XM, Long CL, Wang YX. Expression of DNA methyltransferases in the mouse uterus during early pregnancy and susceptibility to dietary folate deficiency. Reproduction 2012; 144:91-100. [PMID: 22580371 DOI: 10.1530/rep-12-0006] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2023]
Abstract
We have characterized the uterine expression of DNA methyltransferases (DNMTs) during early pregnancy in mice and determined whether a folate-deficient diet (FDD) can affect DNMTs in this context. Within endometrial cells, expressions of DNMT (cytosine-5) 1 (Dnmt1), Dnmt3a, and Dnmt3b were significantly elevated during the prereceptive phase of pregnancy but generally returned to baseline levels during receptive and postimplantation periods. As such, the transcription of DNMT genes is temporally regulated during early pregnancy. When comparisons were made between implantation sites (IS) and inter-IS on day 5 of pregnancy, lower levels of Dnmt3a were detected at IS. Comparisons between IS and inter-IS did not reveal significant expression differences for other DNMT genes. When tissue sections were examined, DNMT3A was specifically lower in the stroma of IS. Reduced DNMT1 and DNMT3B levels were also observed in the luminal and glandular epithelia of IS, whereas no obvious differences in the stroma were detected. In pseudo-pregnant mice subjected to a FDD, levels of Dnmt1 and Dnmt3a (but not Dnmt3b) were significantly upregulated in endometrial tissues, as compared with controls. When tissues from these folate-deficient mice were examined, DNMT1 levels were elevated in both the luminal and glandular epithelia, whereas DNMT3A was upregulated in the luminal epithelium and the stroma. A slight increase in DNMT3B levels was detected in the glandular epithelium. These results indicate that DNMTs may regulate the transcription of endometrial genes associated with embryo implantation and that levels of DNMTs are affected by dietary folate in mice.
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Affiliation(s)
- Y B Ding
- Department of Reproductive Biology, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Chongqing 400016, People's Republic of China
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19
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Abstract
A mammalian expression vector comprised of the PreS2-TLM (translocation motif), a single-chain variable fragment (ScFv) that binds to hepatitis B surface antigen (HBsAg) and the EGFP gene was constructed. A stably transformed cell line that could express and secrete the fusion protein (PreS2-TLM-ScFv-EGFP) was established. HBsAg-positive HepG2.2.15 cells and HepG2 and HeLa cells were incubated with the supernatant of the transformed cell line cultures for evaluating the cellular permeability of PreS2-TLM-ScFv-EGFP. The location of the fusion protein PreS2-TLM-ScFv-EGFP in HepG2.2.15 cells was observed with immunofluorescence staining. EGFP was next replaced by a dominant negative mutant of the hepatitis B virus core gene (HBcDN) for producing fusion protein PreS2-TLM-ScFv-HBcDN, which was detected by western blot. The supernatant containing fusion protein PreS2-TLM-ScFv-HBcDN was added to the cultures of HepG2.2.15 cells, and the packaged hepatitis B virus (HBV) pregenomic RNA expression levels in the cells were measured using qRT-PCR. The results of the in vitro study indicated that the packaged HBV pregenomic RNA expression levels in HepG2.2.15 cells significantly decreased when these cells were exposed to the supernatant at the dose of 25% for 24, 48 and 72 h, or at the dose of 12.5% for 72 h.
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Affiliation(s)
- W-X Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, Zhejiang, China
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20
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Huang HT, Qiu G, Zhang BT, He JL, Yang JF, Xu JL. Comparative study on the intracavity frequency-doubling 532 nm laser based on gray-tracking-resistant KTP and conventional KTP. Appl Opt 2009; 48:6371-6375. [PMID: 19904338 DOI: 10.1364/ao.48.006371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A comparative study of a frequency-doubling 532 nm laser based on gray-tracking-resistant KTP (GTR-KTP) and conventional KTP is presented. The intracavity GTR-KTP was proved to have better temperature characteristics than that of conventional KTP. Within the normalized output power variation range of 0.8-1.0, GTR-KTP has a temperature tolerance of 35 degrees C, broader than the 21 degrees C obtained with conventional KTP. Under the laser diode (LD) pump power of 180 W, the maximum average output power at 532 nm was 40.6 W for GTR-KTP at a repetition frequency of 10 kHz. In the case of conventional KTP, the maximum available LD pump power was limited to 150 W, with the corresponding maximum green average output power of 27.2 W.
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Affiliation(s)
- H-T Huang
- State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Ji'nan 250100, China
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21
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Guo CS, Lu LL, Wei GX, He JL, Tong DM. Diffractive imaging based on a multipinhole plate. Opt Lett 2009; 34:1813-1815. [PMID: 19529712 DOI: 10.1364/ol.34.001813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report on a noniterative method for coherent diffractive imaging based on a specially designed multipinhole (MP) plate. We demonstrated that the complex amplitude of the wavefront penetrating through an MP plate inserted between the specimen and the detector plane can be directly extracted from the Fourier transform of a single far-field diffraction intensity pattern without need of any iterative algorithm. A form of scanning diffractive imaging based on a rotatable MP plate is also demonstrated, which provides a feasible approach for lensless diffractive imaging of complex-valued objects.
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Affiliation(s)
- Cheng-Shan Guo
- Department of Physics, Shandong Normal University, Jinan 250014, China.
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22
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Hu XP, Zhao G, Yan Z, Wang X, Gao ZD, Liu H, He JL, Zhu SN. High-power red-green-blue laser light source based on intermittent oscillating dual-wavelength Nd:YAG laser with a cascaded LiTaO3 superlattice. Opt Lett 2008; 33:408-410. [PMID: 18278126 DOI: 10.1364/ol.33.000408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We demonstrate a high-power red-green-blue laser source based on the quasi-phase-matching and intermittent oscillating dual-wavelength laser technique. A cascaded LiTaO3 superlattice was used to achieve the generation of red light at 660 nm, green light at 532 nm, and blue light at 440 nm to obtain the output of red-green-blue laser light from a diode-side-pumped Q-switched intermittent oscillating dual-wavelength Nd:YAG laser. The average output power of red-green-blue of 1.01 W was achieved under the total fundamental power of 5.1 W, which corresponds to the conversion efficiency of 20%.
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Affiliation(s)
- X P Hu
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, China
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23
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Xu P, Ji SH, Zhu SN, Yu XQ, Sun J, Wang HT, He JL, Zhu YY, Ming NB. Conical second harmonic generation in a two-dimensional chi(2) photonic crystal: a hexagonally poled LiTaO3 crystal. Phys Rev Lett 2004; 93:133904. [PMID: 15524722 DOI: 10.1103/physrevlett.93.133904] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2004] [Indexed: 05/24/2023]
Abstract
A new type of conical second-harmonic generation was discovered in a 2D chi((2)) photonic crystal-a hexagonally poled LiTaO3 crystal. It reveals the presence of another type of nonlinear interaction-a scattering involved optical parametric generation in a nonlinear medium. Such a nonlinear interaction can be significantly enlarged in a modulated chi((2)) structure by a quasi-phase-matching process. The conical beam records the spatial distribution of the scattering signal and discloses the structure information and symmetry of the 2D chi((2)) photonic crystal.
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Affiliation(s)
- P Xu
- National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China
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24
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Man BY, Dong QL, Liu AH, Wei XQ, Zhang QG, He JL, Wang XT. Line-broadening analysis of plasma emission produced by laser ablation of metal Cu. ACTA ACUST UNITED AC 2003. [DOI: 10.1088/1464-4258/6/1/304] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Wang HW, Zhang ZF, Xiao QL, Li WG, He JL. [Insect juvenile hormone enhancing gene expression in silkworm baculovirus vector system]. Sheng Wu Gong Cheng Xue Bao 2001; 17:590-3. [PMID: 11797229] [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: 02/23/2023]
Abstract
5th instar silkworms were infected with recombinant baculovirus containing phytase gene or wild type BmNPV at 48 hr after ecdysis, then treated with 100 ppm Juvenile hormone. It showed that the expression level of phytase gene and polyhedrin gene per silkworm was increased by 30% and 40%, respectively. The LT50 was lengthened for more than 4 h, and the average weight of sick silkworm was increased by 10%. The results indicated that the improvement of expression efficiency of phytase gene and polyhedrin gene was mainly caused by longer time of virus replication in silkworm after the treatment of Juvenile hormone.
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Affiliation(s)
- H W Wang
- Key Laboratory of Silkworm Biotechnology, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
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26
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Xiao QL, Zhang ZF, He JL. [Simultaneous expression of chicken anaemia virus proteins VP1 and VP2 in silkworms]. Sheng Wu Gong Cheng Xue Bao 2001; 17:283-7. [PMID: 11517601] [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: 02/21/2023]
Abstract
By cloning vp1 and vp2 genes of chicken anaemia virus into transfer vector pBacPAK8, recombinant transfer plasmids pBac-vp1 and pBac-vp2 were obtained. Then BmN cells were co-transfected with linearized baculovirus Bm-BacPAK6 DNA and above two recombinant plasmids respectively, recombinant viruses Bm-vp1 and Bm-vp2 were constructed and used to co-infect silkworms to express recombinant proteins. The results indicated that recombinant VP1 and VP2 could induce the corresponding antibody in chickens using immunofluorescence assay and the expression products could protect filial generation from the attack of CAV. Recombinant BmNPV expressing VP1 and VP2 is, therefore, a great hopeful production system for a subunit vaccine against CAV infection.
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Affiliation(s)
- Q L Xiao
- Key Laboratory of Silkworm Biotechnology, Ministry of Agriculture, Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang 212018, China
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27
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Abstract
The atmospheric deposition of mercury including total gas phase mercury (TGM), gas phase divalent mercury (Hg2+), and gas phase monomethyl mercury (MMHg) was investigated. Samples were collected from central cities and nature reserve areas across the province. Techniques and equipment including moss bags, KCl-coated denuder and GARDIS-1A portable mercury vapor analyzer were employed for sample collection and analysis. The reliability of techniques and analytical methods used for the project was evaluated. The deposition of atmospheric mercury was reported in species in this important mercury polluted province for the first time. The spatial and temporal variability of mercury emissions were investigated and reported. Contribution of coal mercury emissions to the atmosphere mercury deposition of the province was also investigated.
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Affiliation(s)
- H Tan
- Guizhou Research Center of Physical Testing and Chemical Analysis, Guiyang Guizhou, PR China.
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28
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Lan Hsia S, Duncan R, Schob AH, Chakko SC, Mulingtapang R, He JL, Perez GO. Serum levels of high-density lipoprotein phospholipids correlate inversely with severity of angiographically defined coronary artery disease. Atherosclerosis 2000; 152:469-73. [PMID: 10998476 DOI: 10.1016/s0021-9150(99)00499-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In an attempt to assess the relationship between lipid abnormalities and severity of coronary artery disease, we measured serum levels of cholesterol (SC), triglycerides (TG), phospholipids (SP), low density lipoprotein cholesterol (LDL-C), very low density lipoprotein cholesterol (VLDL-C), high density lipoprotein cholesterol (HDL-C), and high density lipoprotein phospholipids (HDL-P), in 217 men undergoing diagnostic coronary arteriography. We found significantly higher mean values of HDL-P and HDL-C in men with normal coronaries, but no significant differences in the other measured lipids. While there was no significant difference in HDL-C among patients with one, two or three-vessel disease, there was a negative correlation between HDL-P levels and the severity of the disease. These observations suggest that prospective studies would be of merit to establish the relevance of HDL-P in the development of coronary artery disease.
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Affiliation(s)
- S Lan Hsia
- The Department of Dermatology and Cutaneous Surgery, Veterans' Affairs Medical Center, Medical and Research Services, University of Miami School of Medicine, PO Box 016250 R-250, Miami, FL 33101, USA
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29
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He JL, Chen WL, Jin LF, Jin HY. Comparative evaluation of the in vitro micronucleus test and the comet assay for the detection of genotoxic effects of X-ray radiation. Mutat Res 2000; 469:223-31. [PMID: 10984683 DOI: 10.1016/s1383-5718(00)00077-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The genotoxic effects of X-ray radiation on human lymphocytes were measured using the single cell gel electrophoresis (SCGE) assay (comet assay) and the cytokinesis-blocked micronucleus (CBMN) test; both were carried out in vitro on isolated human lymphocytes in order to compare the relationship and sensitivity of these two detecting methods. The radiation-doses were 0.00, 0.02, 0.05, 0.10, 0.25, 0.50, 1.00 and 2.00 Gy. In the comet assay, the average comet length (38.6+/-0.8 microm) of 0.05 Gy was significantly longer than that (29.4+/-1.1 microm) of 0 Gy (P<0.01), moreover, the average comet length increased with the dose of X-ray radiation. In the CBMN, both the average micronucleus rate (MN) and micronucleated cell rate (MNC) of 0.05 Gy were 11.5+/-4.5 per thousand, which showed no difference with that (7.5+/-0.5 per thousand) of 0 Gy (P>0.05). The lowest dose, which induced significant increase of average MN and MNC, was 0.25 Gy. The average MN and MNC rates increased with radiation-dose. The results showed that there was correlation between SCGE and CBMN, and the sensitivity of SCGE was significantly higher than that of CBMN.
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Affiliation(s)
- J L He
- Division of Environmental Health, School of Medicine, Zhejiang University, 310006, Zhejiang, Hangzhou, China.
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30
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Romagosa R, Saap L, Givens M, Salvarrey A, He JL, Hsia SL, Taylor JR. A pilot study to evaluate the treatment of basal cell carcinoma with 5-fluorouracil using phosphatidyl choline as a transepidermal carrier. Dermatol Surg 2000; 26:338-40. [PMID: 10759821 DOI: 10.1046/j.1524-4725.2000.99227.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND In certain situations, successful topical therapy of basal cell carcinoma (BCC) without the inconvenience, risk, and expense of surgery would be of great value to patients. Placing 5-fluorouracil (FU) in an appropriate carrier may solve these problems. Phosphatidyl choline (PC) penetrates effectively throughout the epidermis of shaved rabbits and may be able to carry small water-soluble molecules such as nucleotides across lipid barriers when applied topically. OBJECTIVE We propose that employing PC as a vehicle will facilitate the penetration of 5-FU and increase efficacy as compared to petrolatum-based 5-FU cream. METHODS This pilot study is a double-blinded and randomized therapeutic trial. Thirteen patients with 17 biopsy-proven, moderate thickness BCCs were randomized to receive either cream A (5% 5-FU in a PC vehicle) or cream B (Efudex(R): 5% 5-FU in a petrolatum base). Patients applied cream A or cream B twice a day for 4 weeks. The patients underwent an excisional biopsy of the treated BCC site at week 16. RESULTS There was a 90% cure rate (9/10) in those lesions treated with 5% 5-FU in PC cream and a 57% cure rate (4/7) in those treated with 5% 5-FU in a petrolatum-based cream. CONCLUSION Although the study was unable to detect any statistically significant differences in outcome between the study groups, this small pilot study shows preliminary findings which may indicate an increase in the short-term eradication of BCC using a PC-based vehicle as compared to conventional petrolatum-based formulations.
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Affiliation(s)
- R Romagosa
- Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, Miami, Florida, USA
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31
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He JL, Jin HY, Jin LF, Gao SY. Monitoring of human exposure to radiation with the binucleated lymphocyte micronucleus assay. Biomed Environ Sci 2000; 13:32-36. [PMID: 10853838] [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: 05/23/2023]
Abstract
The micronuclei (MN) of peripheral blood lymphocytes from radiation-exposed people were monitored with the binucleated lymphocyte micronucleus assay (CBMN). MN rates in people with radiation-disease, radiation exposed and a control group were 12.57/1000, 4.20/1000 and 3.26/1000, respectively. The MN rate of patients with radiation-disease was significantly higher than those of other groups (P < 0.01). The difference between the radiation-exposed group and control group was not significant (P > 0.05). Meanwhile, chromosome aberrations (CA) of 3 groups were determined. The results were similar to those seen while the MN assay. CA rates were 2.06%, 0.93% and 0.69%, respectively. CA rate of the radiation-disease group was significantly higher than that of other groups (P < 0.05, P < 0.01). The difference between the radiation-exposed group and the control group was not significant (P > 0.05). The study indicates that the CBMN assay is a rapid, sensitive and accurate method which can be used to monitor a large population exposed to radiation.
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Affiliation(s)
- J L He
- School of Public Health, Zhejiang University, Hangzhou, China
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32
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He JL, Jin LF, Jin HY. Detection of cytogenetic effects in peripheral lymphocytes of students exposed to formaldehyde with cytokinesis-blocked micronucleus assay. Biomed Environ Sci 1998; 11:87-92. [PMID: 9559107] [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: 05/22/2023]
Abstract
Cytokinesis-blocked micronucleus assay was applied as a biological dosimeter to detect abnormalities in human peripheral lymphocytes of thirteen students exposed to formaldehyde (FA) during a 12-week (10 h per week) anatomy class. Breathing-zone air samples collected during dissection procedures showed a mean concentration of 2.37 ppm (3.17 mg/m3). Ten students from the same school but without FA exposure served as controls. Chromosome aberrations (CA) and sister chromatid exchanges (SCE) were detected in both groups. The micronuclei (MN) rate (6.38 +/- 2.50 /1000) and CA rate (5.92 +/- 2.40%) in the FA-exposed group showed a significant increase (P < 0.01) when compared with those of the controls (3.15 +/- 1.46 /1000 and 3.40 +/- 1.57% respectively). A correlation between MN and CA in individuals was observed. SCE in the exposed group were also increased (P < 0.05), but not so greatly as MN or CA. The results indicated that FA might damage the chromosomes of human lymphocytes.
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Affiliation(s)
- J L He
- School of Public Health, Zhejiang Medical University, Hangzhou, China
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Li HP, He JL, Quan CJ, Ding JS. [The relationship between the activity of phospholipase A2 and acute hypoxic pulmonary arterial pressure]. Sheng Li Xue Bao 1997; 49:685-9. [PMID: 9863193] [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: 02/09/2023]
Abstract
The action of phospholipase A2 (PLA2) and related inflammatory mediators on the formation of hypoxic pulmonary arterial hypertension was studied. 30 Sprague-Dawley rats were equally divided into three groups at random: normal control group, hypoxic group and the group pretreated with dexamethasone plus hypoxia. The pulmonary arterial pressure (PAP) was measured by inserting a microcatheter into the pulmonary artery. After 30 min of hypoxia, the activity of PLA2, platelet activating factor (PAF), prostaglandin E2 (PGE2) and thromboxane B2 (TXB2) were measured in blood and lung tissue, and it was found that the mean pulmonary arterial pressure (mPAP), the PLA2 activity, PGE2, TXB2 and PAF in blood and lung tissue were significantly increased; but pretreatment with dexamethasone relieved the changes mentioned above. In hypoxia, a positive correlations was found between the PLA2 activity and mPAP, PAF, PGE2, TXB2 respectively; positive correlations were also found between PAF, PGE2, TXB2 and mPAP. In conclusion, PLA2 induced the release of inflammation mediators, which may play roles in the formation of the acute hypoxic pulmonary arterial hypertension.
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Affiliation(s)
- H P Li
- Department of Respiratory Internal Medicine, Affiliated Hospital of Guangdong Medical College, Zhanjiang
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Hsia SL, He JL, Nie Y, Fong K, Milikowski C. The hypocholesterolemic and antiatherogenic effects of topically applied phosphatidylcholine in rabbits with heritable hypercholesterolemia. Artery 1996; 22:1-23. [PMID: 8781707] [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: 05/22/2023]
Abstract
To test possible hypocholesterolemic and antiatherogenic effects of transdermally administered phosphatidylcholine (PC), we applied a 33% solution of PC in ethanol containing 0.01% butylated hydroxytoluene as antioxidant, to the shaved back of a strain of inbred rabbits which spontaneously developed hypercholesterolemia (serum cholesterol above 110 mg/dl) and severe atherosclerotic lesions especially in the aortic arch. After the topical application of PC, increases of choline-containing phospholipids in blood were observed, reaching a plateau in 24-48 hr. There were significant reductions in serum cholesterol and LDL cholesterol in the treated animals 2-3 weeks after the treatment. Atherosclerotic lesions in the aortic arch were clearly less severe in the animals repeatedly treated with topical PC. The hypocholesterolemic and antiatherogenic effects of topical PC could be the result of increased cholesterol efflux from extrahepatic tissues and enhanced reverse cholesterol transport.
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Affiliation(s)
- S L Hsia
- Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, Florida 33101, USA
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Abstract
A micro method is described for the assay of choline-containing phospholipids in serum and high density lipoproteins (HDL) using an automated microtiter plate reader. The method is adapted from the enzymic method of Takayama, Itoh, Nagasaki, and Tanimuzu (Clin. Chim. Acta 79, 93-98, 1977) using phospholipase D, choline oxidase, and peroxidase coupled with the color generating system phenol and 4-amino-antipyrine. The micro method requires 5 microL of serum or HDL sample, and 42 samples can be assayed in duplicate in one run using a 96-well flat-bottom microtiter plate. The reaction is linear up to 400 mg/dL and the lower limit of detection is 0.25 mg of choline-containing phospholipids per assay. The coefficient of variation within an assay is 0.86-0.79%, and day-to-day variation is 0.9-1.5%. Results obtained by the micro method are in excellent agreement with those obtained by the procedure of Takayama et al. (r = 0.997). The supernatant left after removal of low density lipoproteins and very low density lipoproteins from serum and precipitation with heparin/manganese chloride reagent can thus be conveniently used for the micro assay of choline phospholipids in HDL.
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Affiliation(s)
- Y Nie
- Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, Florida 33136
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He JL. [Radiotherapy of ectopic ACTH syndrome]. Zhonghua Zhong Liu Za Zhi 1992; 14:204-6. [PMID: 1327696] [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: 12/26/2022]
Abstract
From 1984 to 1990, 6 patients with histologically and hormone assay proved ectopic ACTH syndrome were treated. All these lesions occurred in the chest: 4 thymic carcinoids and the other 2 bronchial carcinoids. The patients all had Cushing's syndrome. Treatment consisted of operation plus radiotherapy. The results showed four completely relieved, one improved and is alive with tumor for 4 years and the other relieved for 2 years and 8 months, then died of local recurrence. The indications, dose and method of radiotherapy are discussed.
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Affiliation(s)
- J L He
- Peking Union Medical College Hospital, Beijing
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Abstract
After intravenous injection of liposomes prepared from egg yolk phospholipids into rabbits, the phospholipids were readily assimilated by the lipoproteins, and there were increases in the circulating levels of cholesterol and phospholipids. The increases in cholesterol level were mainly due to increases of free cholesterol. Gradient ultracentrifugation showed that the lipoproteins decreased in density, and gel filtration chromatography showed that they increased in particle size. Upon electrophoresis, they exhibited slower mobility. Liposomes recovered from rabbits 3 hr after the injection contained free cholesterol, apolipoproteins A-I, E and traces of C. The apolipoprotein may target the liposomes for uptake by hepatocytes. Incubation of the liposomes with rabbit red blood cell membranes in vitro caused a decrease in cholesterol content of the membranes. However, the cholesterol/phosphate ratio in red blood cells isolated from the rabbits after the injection of liposomes did not change significantly, suggesting rapid replenishment of red blood cell cholesterol in vivo, possibly by equilibration with lipoprotein cholesterol or tissue cholesterol. These results suggest that the injection of phospholipid liposomes may have an antiatherogenic effect by the removal of tissue cholesterol and enhancing hepatic disposal of cholesterol through the reverse cholesterol transport mechanism.
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Affiliation(s)
- A J Mendez
- Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, FL 33101
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Wang KQ, Li ZG, Hao QL, He JL, Wu G, Chen BS, Xue H, Wang JM, Li XZ, Hu YM. [The characteristic transportation of cholesterol by serum lipoproteins and its role in anti-atherogenesis in Beijing duck]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1986; 8:88-95. [PMID: 2944650] [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: 01/03/2023]
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He JL. [Bilateral retinoblastoma surviving for 24-years after the treatment of surgery on one eye and radiotherapy on the other-a case report (author's transl)]. Zhonghua Zhong Liu Za Zhi 1981; 3:140-1. [PMID: 7307897] [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: 01/24/2023]
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Wang KG, Chen BS, He JL, Zhou DX. [Studies on serum lipoproteins. VI. Separation, isolation and characterization of serum high density lipoprotein by using dextran-sulfate and Ca++ in combination with preparative polyacrylamide gel electrophoresis (author's transl)]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1979; 1:21-7. [PMID: 95589] [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: 12/13/2022]
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