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Wang JH, Zhang BZ, Chen YJ, Du Y, Wang LL, Wang XJ. [Investigation and analysis of clinical application of stainless steel crowns for primary molars in 2013 and 2022]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:1111-1116. [PMID: 37885181 DOI: 10.3760/cma.j.cn112144-20230830-00122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Objective: To provide references for the clinical popularization of stainless steel crowns by analyzing the clinical application and affecting factors of stainless steel crowns used in primary molars based on a questionnaire survey. Methods: Pediatric dentists from all over the country in June to December 2013 and June to December 2022 were selected to answer the survey questionnaire through the online or offline methods for analyzing the clinical application and influencing factors of stainless steel crowns used in primary molars. Results: A total of 712 and 580 questionnaires were distributed, and 608 and 512 valid questionnaires were recovered respectively in 2013 and 2022. The effective rates of the questionnaires were 85.4% and 88.3%. Among them, the usage rates of stainless steel crowns in 2013 and 2022 were 52.6% (320/608) and 78.1% (400/512) respectively, with a statistically significant difference (χ2=78.68, P<0.001). The main reasons for not selecting stainless steel crowns in 2013 were high technical sensitivity [52.8% (152/288)], followed by the impact of crown edge on gingiva [50.0% (144/288)] and poor aesthetics [27.8% (80/288)], while in 2022 were the inadequate equipage in hospitals [53.6% (60/112)] and poor aesthetics [21.4% (24/112)]. The main reasons for choosing stainless steel crowns restoration were good protection effect, less tooth fracture [78.1% (250/320) in 2013 and 82.5% (330/400) in 2022], followed by low dropout rate [62.5% (200/320) in 2013 and 68.0% (272/400) in 2022]. The proportions of stainless steel crowns restoration for primary molars after root canal therapy were 51.3% (312/608) and 76.6% (392/512) respectively with statistically significant (χ2=75.88, P<0.001). The proportions after pulp capping treatment for deep caries were 13.2% (80/608) and 53.1% (272/512) respectively, and the difference was statistically significant (χ2=206.01,P<0.001). Conclusions: During the 10 years from 2013 to 2022, the technical sensitivity of stainless steel crowns had gradually decreased, and the application in China had gradually increased. However, some hospitals have not yet equipped, which limits the application of stainless steel crowns. Therefore, training efforts should be derived to promote the clinical popularization of stainless steel crowns.
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Affiliation(s)
- J H Wang
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - B Z Zhang
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - Y J Chen
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - Y Du
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - L L Wang
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - X J Wang
- Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
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Li N, Li J, Yan R, Zhang BZ, Shao X, Wang HX. [Percutaneous transhepatic access for catheter ablation of a patient with heterotaxy syndrome complicating with atrial fibrillation: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:819-821. [PMID: 35982017 DOI: 10.3760/cma.j.cn112148-20220609-00457] [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: 06/15/2023]
Affiliation(s)
- N Li
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - J Li
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - R Yan
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - B Z Zhang
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - X Shao
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
| | - H X Wang
- Department of Cardiology, Shanxi Cardiovascular Hospital, Taiyuan 030000, China
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Da QC, He LH, Zhang BZ, Zuo PJ, Li LP. [Progress in health effects and measurement standards of ultraviolet radiation in the workplace]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:466-470. [PMID: 35785906 DOI: 10.3760/cma.j.cn121094-20210826-00428] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultraviolet radiation affects human health. On the one hand, moderate amounts of UV radiation can promote human health and have the effect of promoting vitamin D production; but on the other hand, excessive UV radiation can also cause adverse effects on human skin and eyes, such as causing skin photoaging, skin cancer, electrophthalmia and cataracts to occur. Therefore, the measurement of ultraviolet radiation is extremely important. This paper mainly reviews the health effects of ultraviolet radiation and the progress of measurement standards in the workplace, and puts forward suggestions on the revision of the existing standards from five aspects including use new measuring instruments and methods, improve the existing measuring instruments, specify the number of measurements, expand the scope of application of the standards and consider the influence of the sun on the measurement of artificial ultraviolet radiation, so as to provide reference for the revision of new standards.
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Affiliation(s)
- Q C Da
- School of Public Health/Medical College, Shantou University, Shantou 515041, China
| | - L H He
- School of Public Health, Peking University, Beijing 100191, China
| | - B Z Zhang
- Department of Astronomy, Beijing Normal University, Beijing 100875, China
| | - P J Zuo
- School of Public Health/Medical College, Shantou University, Shantou 515041, China
| | - L P Li
- School of Public Health/Medical College, Shantou University, Shantou 515041, China
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Han XX, Liu JJ, Di TK, Du Y, Wang JH, Zhang BZ, Wang HL, Chen YJ. [Effect of simulated occlusal force on periodontal ligament stem cells of the deciduous teeth at different stages of root absorption]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:866-872. [PMID: 34496534 DOI: 10.3760/cma.j.cn112144-20210514-00243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the related mechanisms of biological root resorption in decidual teeth by studying the biological effect of simulated occlusal force on the periodontal ligament stem cells (PDLSC) at different stages of root absorption. Methods: According to the tooth type and root absorption degree, healthy retained deciduous incisors and healthy first premolars that needed to be removed for orthodontic treatment were collected and divided into three groups with six teeth in each group: the deciduous unabsorbed group (UN group), the absorbed group (R group) and the permanent teeth group (P group). PDLSC was isolated from periodontal ligament and cultured. PDLSC of three groups were loaded with dynamic pressure of 0-45, 0-90, 0-135, 0-180, 0-225 and 0-270 kPa, respectively. The proliferation ability was detected by cell counting kit-8 (CCK-8) technique on day 1 to day 7, respectively. The apoptosis levels of PDLSC after loading with dynamic pressure of 0-45, 0-90, 0-135, 0-180 and 0-225 kPa were observed by the flow cytometry. The changes of microfilaments were observed by fibrous actin (F-actin) staining after the cytokeleton was subjected to dynamic pressure of 0-90 kPa. Results: PDLSC of three groups exhibited various proliferation abilities to dynamic pressure. The A values in the UN group and R group were significantly higher than those in the P group and the difference was statistically significant (P<0.05). However, there was no significant difference between the UN group and the R group (P>0.05). The A values of PDLSC in UN group and R group under dynamic pressures of 0-45, 0-90, 0-135 and 0-180 kPa had no statistical significance compared with the control group unloading dynamic pressure (P>0.05). However, under 0-225 and 0-270 kPa dynamic pressures, the A values at the day 3 to day 7 were statistically significant (P<0.05). The A values of PDLSC in P group under 0-45, 0-90, 0-135, 0-180 and 0-225 kPa dynamic pressures for 1 to 7 days were no statistically significant difference compared with the control group (P>0.05). The A value in P group under the 0-270 kPa was statistically significant only on day 3 (1.386±0.131) and day 5 to day 7 (1.728±0.226, 2.029±0.168 and 2.263±0.210, respectively)(P<0.05). The result of apoptosis showed that the A values of PDLSC in UN group, R group and P group were significantly increased under 0-90, 0-135, 0-180 kPa and above dynamic pressures, respectively (P<0.05) compared with the control group unloading dynamic pressure. Under 0-90 kPa dynamic pressure, F-actin fluorescence staining samples in three groups all showed green filaments which were arranged along the long axis of the cells in the R group and the P group, while some fibers in the UN group were closely arranged and promoted stress fiber assembly. Conclusions: The biological characteristics of PDLSC at different root absorption stages were changed when they were stimulated by mechanical stress, and PDLSC of the deciduous teeth at the root unabsorption stage were more sensitive to mechanical stress stimulation.
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Affiliation(s)
- X X Han
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - J J Liu
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - T K Di
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - Y Du
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - J H Wang
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - B Z Zhang
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
| | - H L Wang
- Department of Medical Rehabilitation, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Xi'an 710032, China
| | - Y J Chen
- Department of Pediatric Dentistry, School of Stomatalogy, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China
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Pang DJ, Huang C, Chen ML, Chen YL, Fu YP, Paulsen BS, Rise F, Zhang BZ, Chen ZL, Jia RY, Li LX, Song X, Feng B, Ni XQ, Yin ZQ, Zou YF. Characterization of Inulin-Type Fructan from Platycodon grandiflorus and Study on Its Prebiotic and Immunomodulating Activity. Molecules 2019; 24:molecules24071199. [PMID: 30934739 PMCID: PMC6479354 DOI: 10.3390/molecules24071199] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/17/2019] [Accepted: 03/25/2019] [Indexed: 01/12/2023] Open
Abstract
Platycodon grandiflorus is a plant widely used in traditional Chinese medicine, of which polysaccharides are reported to be the main components responsible for its bio-functions. In this work, the inulin-type fructan (PGF) was obtained by DEAE anion exchange chromatography from the water extracted from P. grandifloras. Characterization was performed with methanolysis, methylation, and NMR and the results showed that PGF is a β-(2-1) linked fructan, with terminal glucose and with a degree of polymerization of 2–10. In order to study its biofunctions, the prebiotic and immunomodulation properties were assayed. We found that PGF exhibited good prebiotic activity, as shown by a promotion on six strains of lactobacillus proliferation. Additionally, the PGF also displayed direct immunomodulation on intestinal epithelial cells and stimulated the expressions of anti-inflammatory factors. These results indicated that the inulin from P. grandiflorus is a potential natural source of prebiotics as well as a potential intestinal immunomodulator, which will be valuable for further studies and new applications.
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Affiliation(s)
- De-Jiang Pang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Chao Huang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Mei-Ling Chen
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yu-Long Chen
- Sichuan Academy of Forestry, Chengdu 610081, China.
| | - Yu-Ping Fu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Berit Smestad Paulsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway.
| | - Frode Rise
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway.
| | - Bing-Zhao Zhang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen 518055, China.
| | - Zheng-Li Chen
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Ren-Yong Jia
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Li-Xia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xue-Qin Ni
- Animal Microecology Institute, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zhong-Qiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yuan-Feng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
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Fu YP, Feng B, Zhu ZK, Feng X, Chen SF, Li LX, Yin ZQ, Huang C, Chen XF, Zhang BZ, Jia RY, Song X, Lv C, Yue GZ, Ye G, Liang XX, He CL, Yin LZ, Zou YF. The Polysaccharides from Codonopsis pilosula Modulates the Immunity and Intestinal Microbiota of Cyclophosphamide-Treated Immunosuppressed Mice. Molecules 2018; 23:molecules23071801. [PMID: 30037030 PMCID: PMC6100181 DOI: 10.3390/molecules23071801] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/11/2018] [Accepted: 07/19/2018] [Indexed: 01/28/2023] Open
Abstract
Based on previous studies about microflora regulation and immunity enhancement activities of polysaccharides from Codonopsis pilosula Nannf. var. modesta (Nannf.) L. T. Shen (CPP), there is little study on intestinal mucosal immunity, which is a possible medium for contacting microflora and immunity. In the present study, the BALB/c mice were divided into five groups (eight mice in each group), including a normal group (Con), a model control group (Model), and model groups that were administered CPP (50, 100, 200 mg/kg/d) orally each day for seven days after intraperitoneal injection of 60 mg/kg BW/d cyclophosphamide (CP) for three days. CPP recovered the spleen index and restored the levels of IFN-γ, IL-2, IL-10, as well as serum IgG. In addition, it elevated ileum secretory immunoglobulin A (sIgA), the number of Lactobacillus and acetic acid content in cecum. These results indicated that CPP plays an important role in the protection against immunosuppression, especially mucosa immune damage, and the inhibition of pathogenic bacteria colonization, which could be considered a potential natural source of immunoregulator.
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Affiliation(s)
- Yu-Ping Fu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Bin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zhong-Kai Zhu
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xin Feng
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Shu-Fan Chen
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Li-Xia Li
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zhong-Qiong Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Chao Huang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xing-Fu Chen
- Key Laboratory of Crop Ecophysiology and Farming System in Southwest China, Ministry of Agriculture, College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China.
| | - Bing-Zhao Zhang
- Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shenzhen 518055, China.
| | - Ren-Yong Jia
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xu Song
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Cheng Lv
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Gui-Zhou Yue
- Department of Applied Chemistry, College of Science, Sichuan Agricultural University, Chengdu 611130, China.
| | - Gang Ye
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xiao-Xia Liang
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Chang-Liang He
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Li-Zi Yin
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
| | - Yuan-Feng Zou
- Natural Medicine Research Center, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
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Zou YF, Zhang BZ, Inngjerdingen KT, Barsett H, Diallo D, Michaelsen TE, Paulsen BS. Complement activity of polysaccharides from three different plant parts of Terminalia macroptera extracted as healers do. J Ethnopharmacol 2014; 155:672-678. [PMID: 24933222 DOI: 10.1016/j.jep.2014.06.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Water decoctions of the root bark, stem bark and leaves of Terminalia macroptera are used by traditional healers in Mali to cure a wide range of illnesses, such as wounds, hepatitis, malaria, fever, cough and diarrhea as well as tuberculosis. Plant polysaccharides isolated from crude water extracts have previously shown effects related to the immune system. The aims of this study are comparing the properties of the polysaccharides among different plant parts, as well as relationship between chemical characteristics and complement fixation activities when the plant material has been extracted as the traditional healers do, with boiling water directly. MATERIALS AND METHODS Root bark, stem bark and leaves of Terminalia macroptera were extracted by boiling water, and five purified polysaccharide fractions were obtained by anion exchange chromatography and gel filtration. Chemical compositions were determined by GC of the TMS derivatives of the methyl-glycosides and the linkage determined after permethylation and GC-MS of the derived partly methylated alditol acetates. The bioactivity was determined by the complement fixation assay of the crude extracts and purified fractions. RESULTS The acidic fraction TRBD-I-I isolated from the root bark was the most active of the fractions isolated. Structural studies showed that all purified fractions are of pectic nature, containing rhamnogalacturonan type I backbone. Arabinogalactan type II side chains were present in all fractions except TRBD-I-II. The observed differences in complement fixation activities among the five purified polysaccharide fractions are probably due to differences in monosaccharide compositions, linkage types and molecular sizes. CONCLUSION The crude extracts from root bark and stem bark have similar total activities, both higher than those from leaves. The root bark, leaves and stem bark are all good sources for fractions containing bioactive polysaccharides. But due to sustainability, it is prefer to use leaves rather than the other two plant parts, and then the dosage by weight must be higher when using leaves.
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Affiliation(s)
- Yuan-Feng Zou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway.
| | - Bing-Zhao Zhang
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway; GIAT-HKU joint Center for Synthetic Biology Engineering Research (CSynBER), Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Nansha, Guangzhou 511458, PR China
| | - Kari Tvete Inngjerdingen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Hilde Barsett
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Drissa Diallo
- Department of Traditional Medicine, BP 1746, Bamako, Mali
| | - Terje Einar Michaelsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Berit Smestad Paulsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
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Zou YF, Zhang BZ, Barsett H, Inngjerdingen KT, Diallo D, Michaelsen TE, Paulsen BS. Complement fixing polysaccharides from Terminalia macroptera root bark, stem bark and leaves. Molecules 2014; 19:7440-58. [PMID: 24914893 PMCID: PMC6270672 DOI: 10.3390/molecules19067440] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 12/26/2022] Open
Abstract
The root bark, stem bark and leaves of Terminalia macroptera were sequentially extracted with ethanol, 50% ethanol-water, and 50 °C and 100 °C water using an accelerated solvent extractor. Ten bioactive purified polysaccharide fractions were obtained from those crude extracts after anion exchange chromatography and gel filtration. The polysaccharides and their native extracts were characterized with respect to molecular weight, chemical compositions and effects in the complement assay. The chemical compositions showed that the polysaccharides are of pectic nature. The results indicated that there was no great difference of the complement fixation activities in the crude extracts from the different plant parts when extracting with the accelerated solvent extraction system. The purified polysaccharide fractions 100WTSBH-I-I and 100WTRBH-I-I isolated from the 100 °C water extracts of stem and root bark respectively, showed the highest complement fixation activities. These two fractions have rhamnogalacturonan type I backbone, but only 100WTSBH-I-I contains side chains of both arabinogalactan type I and II. Based on the yield and activities of the fractions studied those from the root bark gave highest results, followed by those from leaves and stem bark. But in total, all plant materials are good sources for fractions containing bioactive polysaccharides.
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Affiliation(s)
- Yuan-Feng Zou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway.
| | - Bing-Zhao Zhang
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Hilde Barsett
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Kari Tvete Inngjerdingen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Drissa Diallo
- Department of Traditional Medicine, BP 1746, Bamako, Mali
| | - Terje Einar Michaelsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
| | - Berit Smestad Paulsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, 0316 Oslo, Norway
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Yan PS, Cao LX, Zhang BZ. Efficient purification of antiproliferative polysaccharides from Hypsizigus marmoreus with radial flow chromatography. Biotechnol Prog 2014; 30:872-8. [PMID: 24799498 DOI: 10.1002/btpr.1926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 03/12/2014] [Indexed: 11/09/2022]
Abstract
The increasing commercial significance of natural polysaccharides for use in medicinal products is stimulating the development of efficient and easy scale-up techniques for polysaccharide purification. In this research, the crude polysaccharides from submerged cultivation broth of Hypsizigus marmoreus were purified using radial flow chromatography (RFC), and the antiproliferative activity of the purified fractions was evaluated in vitro. DEAE Sepharose CL-6B was selected to be packed in the RFC column based on its good resolution, physical stability, and low cost. Compared with axial flow chromatography (AFC), an efficient chromatographic process with significantly less time and buffer consumption but yielding higher polysaccharide recovery and resolution was established in RFC, which could clearly purify the crude polysaccharides into different fractions. An acceptable linear scale-up effect of RFC from 100 to 500 mL was successfully achieved without loss of resolution and enhancement of time consumption. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays in cell cultures indicated that the purified polysaccharide fractions possess moderate antiproliferative activities in three different human cancer cell lines, but have significantly lower cytotoxicity in normal human cell lines in vitro. Among the polysaccharide fractions, the main purified acidic fraction W-I could be considered as a novel potential antitumor agent candidate for several tumors, especially for human alveolar epithelial tumors. This research confirmed for the first time that RFC would be a new fast and efficient tool for purification of polysaccharides into different fractions, both at laboratory and commercial scales.
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Affiliation(s)
- Pei-Sheng Yan
- Department of Bioengineering, School of Marine Science and Technology, Harbin Inst. of Technology, Weihai Campus, Weihai, 264209, China
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Zhang BZ, Inngjerdingen KT, Zou YF, Rise F, Michaelsen TE, Yan PS, Paulsen BS. Characterisation and immunomodulating activities of exo-polysaccharides from submerged cultivation of Hypsizigus marmoreus. Food Chem 2014; 163:120-8. [PMID: 24912706 DOI: 10.1016/j.foodchem.2014.04.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 03/16/2014] [Accepted: 04/24/2014] [Indexed: 11/24/2022]
Abstract
Exo-polysaccharides were purified and characterized from the fermentation broth of Hypsizigus marmoreus, a popular edible mushroom consumed in Asia. Among them, B-I-I and B-II-I exhibited potent complement fixating activity, meanwhile, B-N-I, B-I-I, B-II-I and B-II-II exhibited significant macrophage stimulating activity. Molecular weights of the four exo-polysaccharides were determined to be 6.3, 120, 150 and 11 kDa respectively. Molecular characterisation showed that B-N-I is basically an α-1→4 glucan, with branches on C6; B-I-I is a heavily branched α-mannan with 1→2 linked main chain. B-II-I and B-II-II, have a backbone of rhamno-galacturonan with 1→2 linked l-rhamnose interspersed with 1→4 linked galacturonic acid. Structure-activity relationship analysis indicated that monosaccharide compositions, molecular weight, certain structural units (rhamno-galacturonan type I and arabinogalactan type II) are the principal factors responsible for potent complement fixating and macrophage-stimulating activities. Their immunomodulating activities may, at least partly, explain the health benefits of the mushroom.
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Affiliation(s)
- Bing-Zhao Zhang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai Campus, 264209 Weihai, China; Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway; Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, 511458 Nansha, Guangzhou, China
| | - Kari T Inngjerdingen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway
| | - Yuan-Feng Zou
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway
| | - Frode Rise
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, 0315 Oslo, Norway
| | - Terje E Michaelsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway; Department of Bacteriology and Immunology, Norwegian Institute of Public Health, P.O. Box 4404, Nydalen, 0403 Oslo, Norway
| | - Pei-Sheng Yan
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai Campus, 264209 Weihai, China.
| | - Berit S Paulsen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway
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Zou YF, Zhang BZ, Inngjerdingen KT, Barsett H, Diallo D, Michaelsen TE, El-zoubair E, Paulsen BS. Polysaccharides with immunomodulating properties from the bark of Parkia biglobosa. Carbohydr Polym 2014; 101:457-63. [DOI: 10.1016/j.carbpol.2013.09.082] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 08/08/2013] [Accepted: 09/21/2013] [Indexed: 11/30/2022]
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Tvete Inngjerdingen K, Ballo N, Zhang BZ, Malterud KE, Michaelsen TE, Diallo D, Paulsen BS. A comparison of bioactive aqueous extracts and polysaccharide fractions from roots of wild and cultivated Cochlospermum tinctorium A. Rich. Phytochemistry 2013; 93:136-143. [PMID: 23582214 DOI: 10.1016/j.phytochem.2013.03.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 03/08/2013] [Accepted: 03/14/2013] [Indexed: 06/02/2023]
Abstract
In Malian traditional medicine the roots of Cochlospermum tinctorium are used in the treatment of gastric ulcer, but extending harvesting is causing a growing concern of a dramatic reduction in the wild plant population. In the present study cultivation of C. tinctorium is evaluated, and structural components and bioactive properties of crude water extracts and isolated polysaccharide fractions from roots of wild and cultivated C. tinctorium are compared. The crude water extracts were shown to contain starch, pectin- and inulin-type polysaccharides, in addition to phenolic substances and protein, while the isolated acidic polysaccharide fractions contained mainly monosaccharides typical for pectins. The monosaccharide compositions of the polysaccharide fractions from roots of wild versus cultivated plants were comparable, albeit the yields in the cultivated roots were lower. Furthermore, the crude extracts and isolated polysaccharide fractions from wild and cultivated roots exhibited similar complement fixating activities, but were not able to activate macrophages. The crude extracts from cultivated roots were also shown to be moderate radical scavengers. The present study has shown that roots of cultivated C. tinctorium contain the same types of bioactive polysaccharides as the wild roots. However, in order to utilize roots of cultivated C. tinctorium in traditional medicine the cultivation method should be improved.
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Affiliation(s)
- Kari Tvete Inngjerdingen
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, Blindern, 0316 Oslo, Norway.
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Cui JD, Zhang BZ. Comparison of culture methods on exopolysaccharide production in the submerged culture of Cordyceps militaris and process optimization. Lett Appl Microbiol 2011; 52:123-8. [PMID: 21214603 DOI: 10.1111/j.1472-765x.2010.02987.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To improve exopolysaccharides (EPS) production of Cordyceps militaris (C. militaris), effects of different culture method on mycelial biomass and EPS production in the submerged culture of C. militaris were investigated. METHODS AND RESULTS A new two-stage fermentation process for EPS production of C. militaris was designed in this work. Central composite design (CCD) was utilized to optimize the two-stage fermentation process. The results showed that the two-stage fermentation process for EPS production was superior to other culture method (conventional static culture and shake culture). CCD revealed that the optimum values of the test variables for EPS production were shaken for 140 h followed by 130-h static culture. The maximum EPS production reached 3·2 g l(-1) under optimized two-stage culture and was about 2·3-fold and 1·6-fold in comparison with those of original static culture and shake culture. CONCLUSIONS It was indicated that a new two-stage culture method obtained in this work possessed a high potential for the industrial production for EPS of C. militaris. SIGNIFICANCE AND IMPACT OF THE STUDY The fundamental information obtained in this work is complementary to those of previous investigations on the submerged culture of C. militaris for the production of bioactive metabolites.
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Affiliation(s)
- J D Cui
- College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhang, China.
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Hu YJ, Chen Y, Zhang YQ, Zhou MZ, Song XM, Zhang BZ, Luo L, Xu PM, Zhao YN, Zhao YB, Cheng G. The protective role of selenium on the toxicity of cisplatin-contained chemotherapy regimen in cancer patients. Biol Trace Elem Res 1997; 56:331-41. [PMID: 9197929 DOI: 10.1007/bf02785304] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.2] [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: 02/04/2023]
Abstract
The effect of selenium (Se) in reducing the toxicity of cisplatin in cancer patients was studied. Forty-one patients were randomized into group A (20 patients with Se administration in first cycle of chemotherapy as study cases and without Se in second cycle of chemotherapy as control) and group B (21 patients without Se in first cycle of chemotherapy and with Se in second cycle of chemotherapy). The 4000 micrograms per day of Se as Seleno-Kappacarrageenan were administered from 4 before to 4 d after chemotherapy for study cases. The serum Se increased from 70.4 +/- 22.86 to 157.04 +/- 60.23 ng/mL (P < 0.001) in patients received Se. The cisplatin dosage was iv administration in 60-80 mg/m2 on the first day. The results showed that the peripheral WBC counts on day 14 after initiation of chemotherapy in study cases was significantly higher than the controls (3.35 +/- 2.01 vs 2.31 +/- 1.38 [x10(9)L])/L, p < 0.05). On the other hand, the consumption of GCSF for the cases was significantly less than the controls (110.1 +/- 82.2 vs 723.6 +/- 192.6 IU, p < 0.05). The volumes of blood transfusion for the study group were also significantly less than the controls (0 vs 62 +/- 38 mL, p < 0.05). The nephrotoxicity of cisplatin was measured by urine enzymes (NAG, GGT, AAP, LAP, and ALP) were determined prior to and at 2, 24, 48, and 72 h after initiation of chemotherapy. The urine enzymes NAG, GGT, AAP, and ALP after chemotherapy for cases were significantly lower than the controls. No toxicity of Seleno-Kappacarrageenan was noted. The above results suggest that the Se can be used as an agent for reducing the nephrotoxicity and bone marrow suppression induced by cisplatin.
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Affiliation(s)
- Y J Hu
- Department of Medical Oncology, Beijing Hospital, P.R., China
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Abstract
The present studies determined the impact of dietary selenite on glutathione homeostasis in liver and mammary tissue and its relationship to biliary excretion of 7,12-dimethylbenz(a)anthracene (DMBA) conjugates. In Experiment 1, liver and mammary tissue concentration of reduced glutathione (GSH) and activities of gamma-glutamylcysteine synthetase (GCS), glutathione reductase (GR) and glutathione S-transferases (GST) were positively correlated with tissue selenium concentration in female rats fed semipurified diets supplemented with sodium selenite (0.05 to 4 mg Se/kg). The magnitude of the response was dependent upon total selenite intake and the tissue examined. Glutathione peroxidase activity did not correlate with tissue GSH concentration. Because both selenite and BHT have been reported to elevate liver GSH, Experiment 2 compared these agents (4 mg Se/kg and 6 g/kg BHT/kg, respectively) on the biliary excretion of DMBA metabolites. Five major biliary DMBA conjugates, three GSH and two beta-glucuronide, were identified. Dietary addition of selenite or BHT enhanced the excretion of these DMBA conjugates by over 100% during the 15-h collection period. These investigations suggest that dietary selenium can alter the concentration of GSH and the activities of three glutathione-dependent enzymes in mammary and liver, accounting for part of the expanded biliary excretion of DMBA conjugates. Enhanced biliary loss of DMBA conjugates likely relates to the reported depression in DMBA binding to mammary cell DNA and the inhibition of DMBA carcinogenesis caused by dietary selenite.
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Affiliation(s)
- J Z Liu
- Department of Nutrition, Pennsylvania State University, University Park 16802
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Zhang BZ, Ding F, Tan LW. [Clinical and experimental study on yi-gan-ning granule in treating chronic hepatitis B]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1993; 13:597-9, 580. [PMID: 8312695] [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: 01/29/2023]
Abstract
This paper reports that 320 patients with chronic hepatitis B (CHB) were treated with Yi-ganning Granule (YGNG) and the pharmacodynamics of YGNG in the animal study. As control, another 70 patients with CHB receiving oleanolic acid granule (OAG) were compared to 68 patients in YGNG group. YGNG is consisted of Astragalus membranaceus , Artemisia capillaris, Codonopsis pilosula, et al. Each patient has taken YGNG or OAG for 3 months. The result showed YGNG was effective on recovering the liver function and OAG had similar effect. The sero-negative conversion rates of HBsAg, HBeAg, HBcAb and positive conversion rate of HBeAb in the YGNG group were 33.1%, 40.5%, 10.5% and 15.5% respectively, which were much better than that in OAG group (P < 0.05-0.001). The result of 6 months follow up showed that 60 of 62 patients receiving YGNG were in stabilized state. The result in the animal study demonstrated that YGNG had significant protection from the liver damage caused by CCl4. YGNG could decrease serum ALT level and protect the liver function of carbohydrate, fat, protein metabolism and detoxication. YGNG could induce interferon in vivo and play an important role in seroconversion of negative DHBV-DNA and improvement of pathological morphology in viral hepatitis B.
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Affiliation(s)
- B Z Zhang
- Hunan Academy of TCM and Pharmacology, Changsha
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Zhang R, Zhou L, Zhang BZ. [The stimulatory effect of dorsal vagal complex injection of pentagastrin on gastric motility in rats]. Sheng Li Xue Bao 1993; 45:279-85. [PMID: 8235728] [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: 01/29/2023]
Abstract
Changes in antral motility induced by pentagastrin (G5) microinjected into the dorsal vagal complex (DVC) were investigated in fasting conscious rats. Antral motility was monitored by using chronically implanted force transducer sutured to the antrum. DVC injection of G5 markedly stimulated the amplitude of gastric contraction in a dose-dependent manner. The effect, being rapid in onset and long lasting, could not be mimicked by intravenous administration of G5 but could be markedly inhibited by microinjection of antigastrin serum into DVC. Atropine (100 micrograms.kg-1.h-1) and vagotomy could also abolish the G5 induced antral motility. No significant changes in plasma motilin were observed in portal venous blood after administration of G5 in DVC. These results suggested that DVC is an important site of action for G5 induced stimulation of gastric contraction as mediated by vagal cholinergic pathway.
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Affiliation(s)
- R Zhang
- Department of Physiology, Chinese Academy of Medical Sciences, Beijing
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Wang YS, Shi YM, Wu ZY, He YX, Zhang BZ. Parkinson's disease in China. Coordinational Group of Neuroepidemiology, PLA. Chin Med J (Engl) 1991; 104:960-4. [PMID: 1800040] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
An epidemiological study on the incidence and prevalence of Parkinson's disease (PD) was carried out in 29 provinces, cities and autonomous regions in this country in 1986. The survey was conducted in 117 areas, and 566 patients with PD were found among 3,869,162 persons examined, giving a point prevalence for men and women of 16.9/10(5) and 12.4/10(5), with the highest prevalence after the fifth decade of age. The disease was most prevalent in the southern part of China, especially in Hunan and Guangxi provinces. The incidence was 1.5/10(5)/yr in 1986. Both the prevalence and incidence of PD in China are lower than those in the white race and Japanese.
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Affiliation(s)
- Y S Wang
- Department of Neurology, General Hospital of Shenyang Unit, PLA
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Zhang BZ. [Glomerular alterations in glycerol-induced acute renal failure in rabbits]. Zhonghua Bing Li Xue Za Zhi 1991; 20:195-7. [PMID: 1782689] [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: 12/28/2022]
Abstract
Experiment was performed to study the glomerular alterations in glycerol-induced acute renal failure in rabbits. At the 3rd, 6th, 24th, 72nd hour after injection of 50% glycerol subcutaneously, glomerular ultrastructural alterations were observed by scanning and transmission electron microscopy. The results showed that impaired glomerular microcirculation and reduced glomerular filtration rate were the main factors accountable for acute renal failure. It seems of great significance to study the effects of toxin-like material in the pathogenesis of acute renal failure.
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Huang XQ, Xing YL, Zhou SL, Shen L, Zhang BZ. Characteristics of HBsAg subtypes distribution in Beijing area. Chin Med J (Engl) 1989; 102:278-81. [PMID: 2507241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
This paper reports that 300 HBsAg positives were distributed in 262 families. 14 of the 262 families had two or more HBsAg positives. In the 14 families, 7 showed the same subtype HBsAg, probably due to HBV infection from family source. Another 7 families showed HBsAg of different subtypes, definitely due to infections from the community.
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Liu SF, Wang ZX, Yuan YE, Bing SM, Zhang BZ, Wu JZ, Wu YE, Peng XY. Hormone changes during the menstrual cycle of Chinese women. J Reprod Fertil 1986; 76:43-52. [PMID: 3080595 DOI: 10.1530/jrf.0.0760043] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The concentrations of LH, FSH, prolactin, oestradiol and progesterone in serum were measured daily during the menstrual cycle of 100 normal Chinese women. The cyclic changes in LH, FSH, oestradiol and progesterone were typical of ovulatory cycles in women of other ethnic groups as reported in the literature. The geometric mean of the LH midcycle peak value was 51 X 64 i.u./l, the FSH mid-cycle peak value was 11 X 52 i.u./l, the preovulatory oestradiol peak was 1229 X 12 pmol/l, and the progesterone luteal maximum was 53 X 27 nmol/l. The cyclic changes of prolactin concentrations were irregular: the value at mid-cycle was significantly higher than that at the follicular or luteal phases. A correlation between the length of the cycle and mean concentrations of LH and oestradiol at different stages throughout the cycle was shown.
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Zhang BZ. [An X-ray follow-up of Kaschin-Beck's disease after leaving endemic areas]. Zhonghua Fang She Xue Za Zhi 1985; 19:232-4. [PMID: 2932317] [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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Zhang BZ. [Clinical and experimental study of Typha angustata on hyperlipoidemia]. Zhong Xi Yi Jie He Za Zhi 1985; 5:141-4, 130. [PMID: 3157493] [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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Zhang BZ. [An introduction to endomyocardial biopsy]. Zhonghua Hu Li Za Zhi 1984; 19:151-153. [PMID: 6568887] [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: 05/21/2023]
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Zheng YF, Chen MQ, Chen Y, Zhang BZ. [Effect of excitation of the peripheral ends of the abdominal vagus on the release of spleen catecholamines in cats]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1984; 6:206-9. [PMID: 6241050] [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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Zhang BZ. [Anti-shock trousers in the management of gynecologic and obstetric hemorrhagic shock]. Zhonghua Fu Chan Ke Za Zhi 1983; 18:229-31. [PMID: 6609800] [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: 01/21/2023]
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Zhang BZ. [Influences of pathological changes of the lung and pleura on survival rate of renal transplantation]. Zhonghua Wai Ke Za Zhi 1983; 21:102-3. [PMID: 6347567] [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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