1.Analysis of the efficacy of lung-protective ventilation strategy in burn patients with respiratory dysfunction.
Liping CAO ; Gengxiang LIU ; Shilin DENG
Chinese Journal of Burns 2002;18(3):136-138
OBJECTIVETo investigate the efficacy of lung-protective ventilation strategy in burn patients with respiratory dysfunction.
METHODSMechanical ventilation was employed in 11 cases of severely burned patients with the pattern of synchronized intermittent mandatory ventilation and pressure support ventilation (SIMV + PSV). The tidal volume was set at 6 approximately 8 ml/kg and inspiratory plateau pressure was equal to or less than (=) 30 cmH(2)O. PEEP was set at 8 approximately 10 cmH(2)O and FiO(2) 40% approximately 50%. Blood gas analysis indices were dynamically monitored and clinical outcome was observed.
RESULTSSIMV and PSV were applied in these patients for an average of 12.77 +/- 8.06 days. After treatment, the PaO(2)/FiO(2) ratio was obviously increased from 193.54 +/- 53.3 to 327.14 +/- 106.53 (P < 0.01). Furthermore, the PaCO(2) and pH values remained at normal range. Five out of 11 patients finally died, in which 3 were due to renal failure and one due to multiple organ dysfunction (MOD).
CONCLUSIONRespiratory support in severely burned patients could be achieved by lung-protective ventilation strategy.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Burns ; physiopathology ; Female ; Humans ; Male ; Middle Aged ; Pulmonary Ventilation ; physiology ; Respiratory Function Tests ; Respiratory Insufficiency ; etiology
2.The species traceability of the ultrafine powder and the cell wall-broken powder of herbal medicine based on DNA barcoding.
Li XIANG ; Huan TANG ; Jinle CHENG ; Yilong CHEN ; Wen DENG ; Xiasheng ZHENG ; Zhitian LAI ; Shilin CHEN
Acta Pharmaceutica Sinica 2015;50(12):1660-7
Ultrafine powder and cell wall-broken powder of herbal medicine lack of the morphological characters and microscopic identification features. This makes it hard to identify herb's authenticity with traditional methods. We tested ITS2 sequence as DNA barcode in identification of herbal medicine in ultrafine powder and cell wall-broken powder in this study. We extracted genomic DNAs of 93 samples of 31 representative herbal medicines (28 species), which include whole plant, roots and bulbs, stems, leaves, flowers, fruits and seeds. The ITS2 sequences were amplified and sequenced bidirectionally. The ITS2 sequences were identified using Basic Local Alignment Search Tool (BLAST) method in the GenBank database and DNA barcoding system to identify the herbal medicine. The genetic distance was analyzed using the Kimura 2-parameter (K2P) model and the Neighbor-joining (NJ) phylogenetic tree was constructed using MEGA 6.0. The results showed that DNA can be extracted successfully from 93 samples and high quality ITS2 sequences can be amplified. All 31 herbal medicines can get correct identification via BLAST method. The ITS2 sequences of raw material medicines, ultrafine powder and cell wall-broken powder have same sequence in 26 herbal medicines, while the ITS2 sequences in other 5 herbal medicines exhibited variation. The maximum intraspecific genetic-distances of each species were all less than the minimum interspecific genetic distances. ITS2 sequences of each species are all converged to their standard DNA barcodes using NJ method. Therefore, using ITS2 barcode can accurately and effectively distinguish ultrafine powder and cell wall-broken powder of herbal medicine. It provides a new molecular method to identify ultrafine powder and cell wall-broken powder of herbal medicine in the quality control and market supervision.
3.Effectiveness of MT regimen in treatment of acute monocytic leukemia and its relationship with karyotype
Wenjian MO ; Ming ZHOU ; Tingfen DENG ; Qinghua DU ; Qingshan LI ; Shilin XU
Journal of Leukemia & Lymphoma 2011;20(6):370-372,375
Objective To evaluate the effectiveness and side effect of MT regimen (mitoxantrone plus teniposide) in inductive chemotherapy and explore the relationship between the effectiveness and karyotype. Methods 33 patients with acute monocytic leukemia were divided into two groups according to the treatment history or risk status according to cytogenetics MRC criteria. Group A (n=23) and B (n=10) were primary treatment and no remission following one course of DA (daunorubicin plus cytarabine) or HDA (Harringtonine,daunorubicin plus cytarabine) regimen,respectively. According to MRC criteria,group C (n=29) and D (n=4) were intermediate and adverse group. All the cases received two courses MT regimen chemotherapies to induce remission. The results and side effects were analysed. Results The complete remission rate and effective rate in group A and B were 83 % (19/23) and 60 % (6/10),91 % (21/23) and 70 % (7/10) respectively. The complete remission rate and effective rate in group C and D was 83 % (24/29) and 25 % (1/4),88 % (26/29) and 50 % (2/4) respectively. In complex cytogenetic group and 11q23 abnormal without complex cytogenetic group,CR rate was 0 (0/3) and 100 % (4/4). The time point,count of WBC nadir and the duration of WBC were less than 1×109/L is (7±3) day after chemotherapy,(0.4±0.2)×l09/L,(8±5) day. Chemotherapy related mortality was 0. Conclusion MT regimen was highly effective and safe in inducing remission in acute monocytic leukemia,including the cases which achieved no remission following one course of DA or HDA regimen. The effectiveness of MT regimen relates to the cytogenetics. MT regimen may be highly effective in cases with 11q23 abnormal and poor effective in cases with complex cytogenetic.
4.Biological evaluation of artificial skin substitute.
Hua JIANG ; Wenying JIA ; Junmei ZHU ; Xin LIU ; Wei NIE ; Lin CHENG ; Hongdao SHI ; Shilin DENG
Journal of Biomedical Engineering 2006;23(2):357-361
Multiple kinds of Artificial Skin Substitute are now available. However, except for the Homo Skin Graft there is no Artificial Skin Substitute that can be used as permanent Artificial Skin Substitute. During the past 20 years, more and more scholars around the world have expressed increased interests in the research and development of Artificial Skin Graft that can be utilized as satisfying permanent Artificial Skin Substitute. We conducted our research on the biological evaluation of medical devices of Collagen-Chitosan(C-C) Artificial Skin Substitute according to the National Standard (GB/T16886. 1-1997). The following experiments were conducted: (1)Cytotoxicity, (2)Systemic toxicity(acute toxicity), (3)Haemocompatibility, (4)Sensitization, (5)Intracutaneous reactivity, (6)Pyrogen test, (7)Genotoxicity. The experiment results demonstrate that all biological functional indexes of the Artificial Skin Graft meet the National Standards. Therefore, we conclude that C-C Artificial Skin Graft is characteristic of good biological compatibility. It is non-irritant and has no systemic and cellular toxicity, no genotoxicity, no pyrogen, and no allergen.
Animals
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Chitosan
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toxicity
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Collagen
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toxicity
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Female
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Male
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Materials Testing
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Mice
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Random Allocation
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Skin, Artificial
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adverse effects
5.The neuroprotective effects and its mechanisms of qingkailing injection on bacterial meningitis induced by E. coli in rabbits.
Shao-jie YUE ; Qiao-jun LI ; Zi-qiang LUO ; Feige TANG ; Deyun FENG ; Shilin DENG ; Peilan YU
Chinese Journal of Integrated Traditional and Western Medicine 2005;25(7):633-636
OBJECTIVETo explore the neuro-protective effect and mechanism of qingkailing injection (QKL) against cerebral injury caused by E. coli-meningitis (CM).
METHODSThe CM model rabbits were treated by ampicillin with QKL as adjuvant. The leukocyte count and protein content in cerebral spinal fluid (CSF), the contents of water, sodium, potassium and calcium in cerebral tissues were measured before, 16 h and 26 h after Bacillus coli injection respectively. The expression of matrix metalloproteinase-9 (MMP-9) was determined at the same time.
RESULTSAdjunctive treatment with QKL can not only inhibit the increase of leukocyte cells, protein content in CSF, and water, sodium, calcium content in cerebral tissues, but also the decrease of potassium content revealed during simple antibiotic treatment. It also can decrease the expression of MMP-9 in cerebral tissues of rabbits with CM.
CONCLUSIONAs an adjunctive treatment, QKL can prevent transient inflammatory reaction and aggravation of brain injury in CM induced by simple antibiotic treatment, its mechanisms might relate with calcium antagonism and attenuation of MMP-9 expression in brain tissues.
Ampicillin ; therapeutic use ; Animals ; Anti-Bacterial Agents ; therapeutic use ; Brain ; metabolism ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Injections ; Male ; Matrix Metalloproteinase 9 ; biosynthesis ; Meningitis, Escherichia coli ; drug therapy ; Neuroprotective Agents ; therapeutic use ; Phytotherapy ; Rabbits
6.A multicenter clinical trial of piperacillin/tazobactam in burn infection.
Weishi XU ; Shilin DENG ; Chunmao HAN ; Xiaojian LI ; Zhenjiang LIAO ; Wenkui WANG
Chinese Journal of Burns 2002;18(2):75-77
OBJECTIVETo evaluate the efficacy of piperacillin/tazobactam in the management of burn infection.
METHODSSixty-three burn patients were enrolled in the study with burn sepsis or burn area more than 50%TBSA or full skin loss more than 30% TBSA. The administration regime of the antibiotics was 4.5 g intravenously administered every 8 hours in the treatment of burn sepsis or in the prophylactic management. The effectiveness was identified when the septic symptoms disappeared or focal infection did not develop into sepsis.
RESULTSThe overall clinical efficacy was 90.4%, and success in sepsis (control) was 75%. Furthermore, 95.7% of the focal infection was prevented from developing into systemic infection. The bacterial clearance rates were 71.4% and 51.4% in treatment and prophylaxis groups, respectively.
CONCLUSIONPiperacillin/taxobactam was effective in the treatment and/or prophylaxis of burn sepsis caused by bacteria susceptible to it, so it could be applied empirically.
Adult ; Burns ; complications ; drug therapy ; Female ; Humans ; Infusions, Intravenous ; Male ; Middle Aged ; Penicillanic Acid ; analogs & derivatives ; therapeutic use ; Piperacillin ; therapeutic use ; Sepsis ; etiology ; prevention & control ; Treatment Outcome
7.Changes of endocrine and immune function in subjects of yang deficiency constitution.
Qi WANG ; Shilin YAO ; Jing DONG ; Hongdong WU ; Chengyu WU ; Zhongyuan XIA ; Hefeng SHI ; Guoming PANG ; Qiwei DENG ; Jianxiong ZHAO ; Jing CAI ; Zhengzhi CUI
Journal of Integrative Medicine 2008;6(12):1226-32
To investigate the changes of endocrine, cyclic nucleotide and immune systems in subjects of yang deficiency constitution, and to explore the relationship among characteristics and causes of yang deficiency constitution, the physiological and biochemical parameters.