1.A Reflection on ART and Related Issues of Technical Ethics
Chinese Medical Ethics 1996;0(01):-
Science and technology is known as a two-blade sword. For on one hand, the scientific development has brought human incredible advantages, while on the other hand, it has also lead to many dilemmas between science and ethics. For instance, technologies such as test-tube baby, artificial fertilization and in vitro fertilization, and cloning have drawn a lot of attention. A serous reflection should be given to ethics-related issues caused by these high-tech products.
2.Research advances in the role of γδT cells in the pathogenesis of rheumatoid arthritis
Chinese Journal of Applied Clinical Pediatrics 2014;29(21):1604-1606
Rheumatoid arthritis (RA) is a common systemic autoimmune disease characterized by chronic inflammation of joints,bone and cartilage erosion,synovial hyperplasia,and the pathogenesis of RA is not clear.γδT cells are a new kind of phenotype and function T lymphocyte subsets,which mainly distribute in the mucosal and epithelial tissue and account for 1%-10% of the total T cells in the peripheral blood,and bridge innate and adaptive immunity.γδT cells play an important role in the pathogenesis of RA by the functions of antigen-presenting capacity,secretion of proinflammatory cytokines,immunomodulatory effects,and auxiliary function for B cells.
3.Investigation on parent's and preschool children's dental health behavior in pudong new area of shanghai
Feng WEI ; Sha SHA ; Changying JIANG ; Yihong XU
Chinese Journal of Practical Nursing 2014;30(9):26-29
Objective To get informed of the parents' oral health behaviors,children's oral hygiene habits and the correlation between the two,to lay the foundation of building up joint educational pattern of the oral health between pre-school children and their parents.Methods The questionnaire between preschool children and their parents was applied.By cluster sampling,124 pre-school children from 5 kindergartens in the local community were selected to participate the survey.The oral health behaviors of parents and their kids were investigated and the results underwent analysis.Results Parents’ oral health behaviors were closely related to children's,which was embodied by three parts,such as the starting age of brushing teeth,the duration of brushing and the habits of gargling after meals.As to parents,the knowledge sources of oral health mainly came from TV and broadcast programs (82.3%),newspapers and periodicals,magazines and popular science readings (51.6%),relatives and friends (27.4%),but the anticipated knowledge sources were from medical personnel (90.3%),TV and broadcast programs (53.2%),community activities on health education (51.6%).Conclusions Pre-school children's oral health behaviors are currently good; more emphasis should be laid on the effect of parents' behaviors to their children's oral health; it's necessary to hold more community activities on health education.
4.Expressions of chemokine CXCL12 and its receptor CXCR4 in human sperm.
Yan WANG ; Wei SHA ; Wen-hui ZHOU
National Journal of Andrology 2015;21(3):225-228
OBJECTIVETo explore the expression patterns of the chemokine CXCL12 and its receptor CXCR4 in human sperm.
METHODSWe collected semen samples from 10 fertile men, performed density gradient centrifugation, and then determined the expressions of both CXCL12 and CXCR4 in the sperm by RT-PCR and immunofluorescence staining.
RESULTSRT-PCR revealed the mRNA expressions of CXCL12 (0.641 +/- 0.180) and CXCR4 (0.464 +/- 0.100) in the sperm. However, only CXCR4 rather than CXCL12 was expressed at the protein level, and the positive staining for CXCR4 was observed mainly in the posterior part of the acrosome.
CONCLUSIONCXCL12 and CXCR4 are involved as important molecules in regulating the function of human sperm.
Acrosome ; metabolism ; Centrifugation, Density Gradient ; Chemokine CXCL12 ; metabolism ; Humans ; Male ; Receptors, CXCR4 ; metabolism ; Signal Transduction ; Spermatozoa ; metabolism
5.Heavy ion beam radiotherapy for malignant tumor of bone and soft tissue
Sha LI ; Shihua WEI ; Hong ZHANG
Journal of International Oncology 2011;38(6):462-464
The malignant tumor of bone and soft tissue is conventional rays(X,γrays)resistant. The heavy ion rays 12C+ have following characteristics: high linear energy transfer, Bragg peak, small scattering, high biological effect, lethal damage to tumor cell, and double-strand break to the DNA. Therefore, heavy ion rays Call allow tumor target area obtain high radiation doses while surrounding normal tissues get best protection Recent progress of basic and clinical research on heavy ion treating malignant tumor of bone and soft tissue is discussed.
6.Characterization of circulating microRNA and its clinical application
Yujuan ZHANG ; Sha GUO ; Wei CUI
Chinese Journal of Laboratory Medicine 2014;37(12):964-968
MicroRNAs (miRNAs) are small noncoding regulatory RNAs ranging in size from 17 to 25 nucleotides which participate many physiological and pathological processes.MicroRNA could also stably exist in peripheral blood,and the detection of circulating microRNA is of great significance for disease diagnosis and prognosis.As so far,there is no unified method and standard for detection of microRNA,which is the major reason for discrepant results between different studies.However,circulating microRNA,as a new disease detection biomarker,has stable properties,convenient detection and high accuracy features,so it till has an important potential value in clinical applications.
7.Comparison of the clinical results between living related and cadaveric donor renal transplantation
Jianjun SHA ; Wei LIU ; Liang YING
Chinese Journal of Organ Transplantation 2003;0(01):-
Objective To compare the clinical results between living related and cadaveric donor renal transplantation in the same immunosuppressive regimen and HLA match. Methods Twelve cases of living related donor renal transplantation and 22 cases of cadaveric donor renal transplantation were analyzed retrospectively. The 1-, 3-year patient/graft survival rate, renal function and 1-year acute rejection rate were analyzed respectively.Results No renal function injury and surgical complications were found for living donors during the follow-up period. In living donor group and cadaveric donor group, 1-year acute rejection rate was 16.7 % and 22.7 % respectively (P 0.05). Renal function in living donor group was better than that in cadaveric donor group (P
8.HPLC determination of ursolic acid in Kangzhitong Jiangzhi Capsule
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(08):-
Objective: To establish a method for HPLC determination of ursolic acid in Kangzhitong Jiangzhi Capsule.Methods: HPLC,chromatographic column Kromasil C18(4.6mm?250 mm,5?m)and the mobile phase consisted of methyl alcoholwater-ammonium acetate-acetonitrile(9∶25∶0.8∶65) were used to find ursolic acid.The flow rate was 1.0ml?min and the detector wave-length was set at 215nm.Results: The calibration curve was in good linearity over the range of 64-320?g/ml(r=0.9996).The average recovery rate was 100.10%,with RSD=1.32%.Conclusion: This method is simple,accurate and reproducible so it can be used to determine the content of ursolic acid in Kangzhitong Jiangzhi Capsule.
9.Myocardial late gadolinium enhancement cardiovascular magnetic resonance in two patients with cardiac amyloidosis.
Zhong-wei CHENG ; Lin KANG ; Li-sha LI
Chinese Journal of Cardiology 2010;38(9):847-848
Amyloidosis
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pathology
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Female
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Gadolinium
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Heart Diseases
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pathology
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Humans
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Magnetic Resonance Spectroscopy
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methods
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Male
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Middle Aged
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Myocardium
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pathology
10.Analysis of sites for recurrent and metastatic gastric cancer after curative resection and its guidances for the treatment
Shuzhen WEI ; Xiaofeng SHA ; Jiao ZHANG ; Qingmei YANG ; Yunxiang DU
Cancer Research and Clinic 2010;22(11):739-741
Objective To investigate the patterns for the recurrent and metastatic gastric cancer after curative resection and to indicate the strategy of treatment. Methods 162 patients who had received radical resection and presented post-operation failure during recent 9 years were analyzed. The failure patterns were confirmed by type-B ultrasonic or CT / MRI imaging. 15 of 34 patients with abdominal dropsy were diagnosed by adenocarcinoma cells in the abdominal dropsy. All superficial lymphadens and abdominal wall metastasis were diagnosed via punctuation. 31 patients with gastric remnant and (or) anastomoses recurrence were diagnosed via biopsy. Results Of 162 patients, 63 presented the recurrence or metastasis in multiple sites,including abdominal lymph node (LN) metastases in 46.9 % (76/162), peritoneum metastases in 21.0 % (34/162),gastric remnant and (or) anastomoses recurrence in 19.1% (31/162), liver metastases in 19.1% (31/162), the incidence rates of other parts were all <10 %. Meanwhile, out of 76 patients with abdominal lymph node metastases, 48.7 % (37/76) patients with peri-gastric LNs metastases, 31.6 % (24/76) with peri-pancreatic LNs metastases, 19.7 % (15/76) with para-aortic LNs metastases. The incidence of LN metastases was 57.7 % (56/97) in cancer arising from gastric fundus/cardia and 60.4% (29/48) in gastric body and 64.7 % (11/17) in pylorus antrum. Conclusion The regional failure sites for gastric cancer patients with radical resection were dominantly found in the gastric stump/stoma, the peritoneum and pelvic cavity implantation and abdominal cavity LN metastases, especially in the peri-gastric, peri-pancreatic and/or para-aortic LN metastases. The distant place failure sites were mainly in the liver, lung, brain, spondylus, cervical part LN and mediastinal LN metastases. Therefore, we should take chemotherapy, abdominal cavity chemotherapy and regional radiotherapy to prevent the regional district recurrences and distant metastasis after the gastric cancer patients with radical resection. Radiotherapy fields should focus on the gastric stump/stoma and the peri-gastric, peri-pancreatic and para-aortic LN regions.