1.Radiation-induced fibrosis in rat lung: Modification by hydroxypiperquin phosphate
Mei WANG ; Qiang FU ; Bi-He MING ; Al ET
China Oncology 2000;0(06):-
Purpose: To evaluate the HPQP as a modifier of radiation-induced pulmonary fibrosis in rats sacrificed 4 months and 6 months separately after a single dose of 0, 15, 20, 25 Gy60Co r rays to the right hemithorax. Methods: HPQP was administered by a stomach tube 2 times a week after irradiation at a regimen of 100mg/kg. Pulmonary fibrosis was evaluated by lung hydroxyproline( HP) content and histological observation( LM and EM). Results: The content of lung HP increased with increasing radiation dose. The differences between control group and 20,25 Gy group are significant P
2.Aeromonas hydrophila bloodstream infection in patients with hematologic diseases: a report of 4 cases
XU Yan-ling ; YANG Xu ; LI Jiang ; HE Wei ; HE Ping-an ; LYU Mei ; BI Hui
China Tropical Medicine 2022;22(11):1028-
Abstract: To report the diagnosis, treatment and outcome of 4 patients with hematological diseases complicated with Aeromonas hydrophila bloodstream infection in the Second Affiliated Hospital of Kunming Medical University, further clarify the importance of blood culture and deepen the clinical understanding of the disease. Four patients with hematological diseases complicated with Aeromonas hydrophila bloodstream infection treated in the Second Affiliated Hospital of Kunming Medical University from 2017 to 2021 were recruited as the study objects. The clinical manifestations, blood culture collection, detection time of Aeromonas hydrophila, laboratory examination, treatment and prognosis of the patients were retrospectively analyzed. In this study, 4 cases were male patients with hematological diseases, who were in myelosuppression after chemotherapy. After fever, blood culture was collected and Aeromonas hydrophila was detected. The positive time of blood culture in 4 cases ranged from 4 to 11 hours. The results of antibiotic sensitivity showed that it was highly sensitive to the second, third and fourth generation cephalosporins, quinolones and carbapenems. Four patients were treated with imipenem cilastatin sodium in the early stage, and one patient recovered after active anti infection and leukocyte raising treatment. One patient did not complete chemotherapy due to a request for discharged, and the follow-up was unknown. Two patients developed rapidly into necrotizing fasciitis and died later. Hematological diseases complicated with Aeromonas hydrophila bloodstream infection are rare, but the mortality rate is high. For patients with repeated fever and considering infection, blood culture should be carried out as soon as possible to confirm the pathogen and drug sensitivity test. During clinical treatment, the treatment should be adjusted in time in combination with the patient's situation. In addition to anti-infection treatment, the patient's immunity should be improved and the development of necrotizing fasciitis should be vigilant.
Keywords: Aeromonas hydrophila; hematologic diseases; leukemia; bloodstream infection; blood culture; necrotizing fasciitis
3.Analgesic effect of transcutaneous electrical acupoint stimulation combined with target-controlled infusion in general anesthesia and effects on cardiovascular system.
Chinese Acupuncture & Moxibustion 2008;28(3):219-221
OBJECTIVETo observe analgesic effect of transcutaneous electrical acupoint stimulation combined with target-controlled infusion (TCI) in general anesthesia and effects on cardiovascular system.
METHODSSixty selective breast operation patients were randomly divided into a combined group and a TCI group, 30 cases in each group. The combined group received anesthesic induction for 30 min with transcutaneous electrical acupoint stimulation and then TCI into vein for general anesthesia, and the transcutaneous electrical acupoint stimulation was continued till the end of the operation. The TCI group only received TCI irito vein for general anesthesia. The target-controlled concentration of the general anesthesia drugs in plasma was monitored to evaluate the analgesic effect of transcutaneous electrical acupoint stimulation. Meanwhile, the effects of the transcutaneous electrical acupoint stimulation on cardiovascular system were investigated.
RESULTSThe mean Propofol and Fentany dosages needed were 226.67 mg and 0.11 mg in the combined group, and 272.22 mg and 0.14 mg in the TCI group during the operation, respectively, with significant differences (P < 0.05 or P < 0.01). The changes of heart rate and blood pressure in the combined group during skin-cutting were significantly less than those in the TCI group (P < 0.05). The awaking time in the combined group was significantly shortened.
CONCLUSIONThe transcutaneous electrical acupoint stimulation has a certain analgesic effect in the operation and can reduce 17% Propofol dosage and 14% Fentany dosage, and it can decrease the skin-cutting-induced stress reaction of the cardiovascular system and accelerate waking.
Acupuncture Analgesia ; methods ; Adult ; Anesthesia, General ; methods ; Blood Pressure ; Breast ; surgery ; Female ; Fentanyl ; administration & dosage ; Heart Rate ; Humans ; Middle Aged ; Propofol ; administration & dosage ; Transcutaneous Electric Nerve Stimulation
4.Value of MR axial T_2WI in diagnosis of anterior cruciate ligament tears
bi-yuan, HE ; wei-wu, YAO ; shi-xun, YANG ; mei, LI
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(01):-
0.05).However,the specificity of axial MRI diagnosis was higher than that of the sagittal one. Conclusion MRI axial T2WI may provide important information for the diagnosis of patients with ACL injury.
5.Expression and purification of a fusion gene TSO45W-4B-TSOL18 of Taenia solium in Escherichia coli ArcticExpress(DE3) and preparation of rabbit antiserum
Bi-ying, ZHOU ; Ling, ZHOU ; Mei-chen, LIU ; Hui, LIU ; Li-fang, HE
Chinese Journal of Endemiology 2013;32(6):619-624
Objective To construct a recombinant plasmid pGEX-TSO45W-4B-TSOL18 of Taenia solium,to obtain purified recombinant protein TSO45W-4B-TSOL18 and to prepare rabbit antiserum against the recombinant fusion protein.Methods TSO45W-4B and TSOL18 encoding genes were connected with hydrophobic (Gly4Ser)3 linker.TSO45W-4B-TSOL18 fusion gene was synthesized and cloned into an expression vector pGEX-1λT to construct a recombinant plasmid pGEX-TSO45W-4B-TSOL18.The positive recombinants were transformed into Escherichia(E.) coli ArcticExpress (DE3),and the expression of recombinant protein was induced with isopropylβ-D-thiogalactopyranoside (IPTG) and analyzed by sodium dodecyl sulfate polyacrylamide gelelectrophoresis (SDS-PAGE).The expressed recombinant fusion protein was purified through affinity chromatography.The purified recombinant protein was mixed with complete Freunds adjuvant at a dosage of 0.5 mg.Rabbit was intramuscularly and subcutaneously immunized in the hind leg and the back,respectively.After 2 weeks the rabbit was boosted with purified recombinant protein which was mixed with incomplete Freunds adjuvant at the same dosage.Rabbit can be boosted every 10 days until an adequate response was achieved.At the 6th day after the last immunization,blood was collected from the rabbit heart.Serum was separated to purify and prepare the antiserum.ELISA was applied to determine the titer of the antiserum and Western blot assay was used to determine the specificity of the antiserum.Results The size of the synthesized fusion gene TSO45W-4B-TSOL18 was 789 bp.The results of restriction enzyme digestion showed that the recombinant plasmid pGEX-TSO45W-4B-TSOL18 was successfully constructed.DNA sequencing showed that the size of the fusion gene TSO45W-4B-TSOL18 was 789 bp,which was consistent with expected result.As demonstrated by SDS-PAGE,relative molecular mass of the expressed recombinant fusion protein was approximately 55 × 103,and its purity was 85% after purification with affinity chromatography.Titer of the antiserum against the recombinant protein was 1 ∶ 512 000 in ELISA assay and the specific rabbit antiserum against the purified recombinant protein TSO45W-4B-TSOL18 could specifically bind to the recombinant fusion protein in Western blot assay.The relative molecular mass of the specific band was about 55 × 103,which was consistent with expected size.Conclusions The recombinant plasmid pGEX-TSO45W-4BTSOL18 of Taenia solium is successfully constructed.High quality recombinant fusion protein TSO45W-4B-TSOL18 and high titer rabbit antiserum are successfully prepared.
6.Effect of previous analgesia of scalp acupuncture on post-operative epidural morphine analgesia in the patient of intestinal cancer.
Bi-mei HE ; Wan-shan LI ; Wan-yao LI
Chinese Acupuncture & Moxibustion 2007;27(5):369-371
OBJECTIVETo probe the effect of previous analgesia of scalp acupuncture.
METHODSSixty cases of radical operation of intestinal cancer were randomly divided into 2 groups: a scalp acupuncture plus epidural analgesia (scalp acupuncture group) and an epidural analgesia group, 30 cases in each group. The scalp acupuncture group received scalp acupuncture from 20 min before operation to the end of the operation, and epidural analgesia at the end of the operation. The epidural analgesia group only received epidural analgesia at the end of the operation. Recovery of VAS scores, BCS scores and gastrointestinal function after operation were investigated to probe into effects of scalp acupuncture on epidural morphine analgesia after operation in the patient of intestinal cancer.
RESULTSThe VAS scores at 6 h, 12 h, 24 h and 48 h in the scalp acupuncture group were lower than the epidural analgesia group, with significant differences at 6 h and 12 h between the two groups (P < 0.05). BCS scores at the 4 time points in the scalp acupuncture group were lower than the epidural analgesia group with significant differences between the two groups (all P < 0.05). The scalp acupuncture group in recovery of bowel sound, exsufflation from the anus in the scalp acupuncture group was faster than the epidural analgesia group (P < 0.01).
CONCLUSIONScalp acupuncture has a certain previous analgesic effect, reducing discomfort of the patient after operation and promoting the recovery of gastrointestinal functions.
Acupuncture Analgesia ; methods ; Aged ; Analgesia, Epidural ; Female ; Humans ; Intestinal Neoplasms ; surgery ; Male ; Middle Aged ; Morphine ; therapeutic use ; Pain, Postoperative ; therapy ; Scalp
7.Mini-incision posterior laminectomy by fenestration in the treatment of huge lumbar disc herniation.
Mei-Gang WEI ; Yi HE ; Bi-Sheng WANG ; Bin ZHAO
China Journal of Orthopaedics and Traumatology 2010;23(6):456-458
OBJECTIVETo discuss clinical effects and methods of mini-incision posterior laminectomy by fenestration in the treatment of huge lumbar disc herniation.
METHODSFrom 1999 to 2008,107 patients with huge protruded lumbar intervertebral disc were retrospectively analyzed including 78 males and 29 females with an average age of 38.5 years ranging from 26 to 59 years. The patients were operated with mini-incision posterior laminectomy by fenestration. The affected region of patients were L4.5 (36 cases), L5S1 (71 cases). The herniation rate of nucleus was more than 40%. The patient's scores based on low back pain improved JOA standard were retrospectively analyzed.
RESULTSThe 107 patients were followed-up for from 0.5 to 4 years with an average of 1.75 years. The scores by low back pain improved JOA standard were improved from (1.500 +/- 1.200) before operation to (12.700 +/- 0.950) after operation. The average improvement rate was (82.96 +/- 6.85)%.
CONCLUSIONIt is a reliable method in the treatment of huge lumbar disc herniation with mini-incision posterior laminectomy by fenestration. The treatment method have advantage with less trauma, good spinal stability, conducive to patient recovery and maintain clinical efficacy.
Adult ; Female ; Herniorrhaphy ; Humans ; Intervertebral Disc Displacement ; surgery ; Laminectomy ; methods ; Lumbar Vertebrae ; Male ; Middle Aged ; Prognosis
8.Effects of scalp acupuncture on regulative ability of oxidative stress reaction at operation stage.
Bi-mei HE ; Wan-yao LI ; Wan-shan LI ; Wei-xian ZHAO
Chinese Acupuncture & Moxibustion 2006;26(4):291-294
OBJECTIVETo study on regulative action of scalp acupuncture on oxidative stress reaction at operation stage.
METHODSFifty two cases selected for radical operation of intestinal cancer were randomly divided into a scalp acupuncture plus general anesthesia (scalp acupuncture group) and a simple general anesthesia group (general anesthesia group), 26 cases in each group. The scalp acupuncture group were treated first with scalp acupuncture for 20 min, followed by general anesthesia, with scalp acupuncture lasted till the end of operation. The general anesthesia group were treated only with simple intratracheal anesthesia. Effects of scalp acupuncture on malondialdehyde (MDA) level and superoxide dismutase (SOD) activity at the operation stage were observed.
RESULTSAfter operation, MDA levels decreased significantly (P < 0.05) in the two groups, but with no difference between the two groups in the different values of MDA before and after treatment (P > 0.05); there was no significant change in SOD before and after treatment in the scalp acupuncture group, and significantly decreased in the general anesthesia group (P < 0.05). There was a significant difference between the two groups in the different value of SOD before and after the operation (P < 0.05).
CONCLUSIONScalp acupuncture can inhibit the decrease of SOD activity, reducing oxidative stress reaction at operation stage.
Acupuncture Therapy ; Adult ; Aged ; Blood Pressure ; Humans ; Intestinal Neoplasms ; surgery ; Intraoperative Period ; Malondialdehyde ; analysis ; Middle Aged ; Oxidative Stress ; Scalp ; Superoxide Dismutase ; metabolism
9.Effects of veratryl alcohol and tween 80 on ligninase production and its roles in decolorization of azo dyes by white-rot basidiomycete PM2.
Rong JIA ; Bi-Kui TANG ; Xiao-Bin ZHANG ; Yue-Mei HE
Chinese Journal of Biotechnology 2004;20(2):302-305
Basidiomycete PM2, a lignin-degrading white rot fungus, produces lgnin peroxidase (Lip) and manganese peroxidase (Mnp) in nutrient nitrogen limited liquid cultures. This fungus was selected for its ability to decolorize azo group of dyes. In order to improve production of the peroxidases and rapid dye decolorizing activity by basidiomycete PM2, the addition of veratryl alcohol or Tween 80 to nutrient nitrogen limited liquid cultures were tested. It was found to have a large stimulatory effect on Mnp activities and decolorization rate of azo dyes. A maximum Mnp activities of 254.2 u/L with veratryl alcohol and 192.2 u/L with Tween 80 were achieved respectively. These values were about 3.4-fold and 2.5-fold higher than that obtained in the control cultures (without alcohol or Tween 80), whereas the levels of Lip activity detected were very low (about 12 u/L)in all the cultures. In further experiments using three kinds of azo dyes of congo red, orange G and orange IV, enzyme activities and dye decolorization were investigated in the above-mentioned cultures. The results showed that Mnp activities and decolorization were notably higher than those obtained in the control cultures in the presence of azo dyes. Cultures supplemented with Tween 80 were more adequate for dye decolorization. The rates of the decolorization with Tween 80 of congo red (95.4%), orange G (98.5%) and orange IV (54.4%) after 24 hours of dye incubation were higher than that supplemented with veratryl alcohol. According to the results, Mnp activities secreted by basidiomycete PM2 play an essential role in the process of dye decolorization. Tween 80 was the main factor affecting the decolorization. The analysis of structure of the three kinds of azo dyes indicats that the extent of decolorization is affected by the dye molecular structure. The types and quantity of the substituted groups on the aromatic ring of azo dyes have effect on the percentage of biological decolorization.
Azo Compounds
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metabolism
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Basidiomycota
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enzymology
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metabolism
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Benzyl Alcohols
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pharmacology
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Coloring Agents
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metabolism
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Oxygenases
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biosynthesis
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Peroxidases
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biosynthesis
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Polysorbates
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pharmacology
10.Clinical efficacy of triamcinolone acetonide and Ranibizumab in the treatment of diabetic diffuse macular edema
Bi-Hua XIE ; Yu HE ; Mei XIN ; Zhuo CHEN
International Eye Science 2018;18(6):1089-1092
· AIM:To compare the clinical curative effect of triamcinolone acetonide and Ranibizumab on diffuse diabetic macular edema (DME).· METHODS:We collected 84 cases of patients with diffuse DME treated in our hospital from February 2016 to May 2017.According to 1:1 matching method,they were divided into Ⅰ,Ⅱ groups.They were all treated with laser photocoagulation.Preoperative auxiliary application of triamcinolone acetonide was given to Group Ⅰ,while Group Ⅱ received preoperative application of ranibizumab.After treatment,the efficacy of the two groups were analyzed and compared.· RESULTS:The total clinical efficiency of Group Ⅱ at 3mo after treatment was 93%,higher than that of Group Ⅰ (77%;x2 =4.981,P =0.025).Compared with before treatment,BCVA and CMT of the two groups at each time after treatment were significantly improved (P< 0.05).BCVA of Group Ⅱ at 1 and 3mo after treatment was better than that of Group Ⅰ (P<0.05);CMT of Group Ⅱ at 1,3 and 6mo after treatment improved more than that of Group Ⅰ,with significant difference (P < 0.05);occurrence rate of adverse reactions Group Ⅰ and Group Ⅱ were 17% and 13% with no significant statistical difference (X2 =0.243,P=0.621).There were no serious adverse reactions such as retinal detachment,endophthalmitis or cataract in the two groups.· CONCLUSION:Compared with triamcinolone acetonide,the effect of ranibizumab on diffuse diabetic macular edema is better,and has high clinical value.