1.Effect of monomers extracted from Spatholobus suberectus Dunn on proliferation of hematopoietic progenitor cells in marrow-depressed mice
Dongxiao WANG ; Ping LIU ; Ruoyun CHEN ; Mengli CHEN ; Guiyun CHEN
Chinese Journal of Tissue Engineering Research 2008;12(21):4163-4166
BACKGROUND: Hematogenesis of a body mainly depends on the proliferation of hematopoietic progenitor cell (HPC). Hematopoietic functional impairment will occur when hematopoietic cells are injured by radioactive ray or chemical drug. The proliferation of HPC is the key link of promoting hematogenesis.OBJECTIVE: To study the effects of nine monomers extracted from Spatholobus suberectus Dunn (SSD) on proliferation of HPC in marrow-depressed mice. DESIGN: Randomized controlled trial.SETTING: Department of Pharmacy, General Hospital of Chinese PLA.MATERIALS: This experiment was conducted in the Department of Clinical Pharmacology, General Hospital of Chinese PLA from November 2002 to February 2003. Totally 348 healthy Kunming mice, weighing 22-25g, clean grade, of irrespective gender, were selected in this study (certification: SCXK-2001-001). The animal experiment was approved by the local ethics committee. SSD was provided by Dispensary of Traditional Chinese Medicine, General Hospital of Chinese PLA; monomers (gallocatechin, formononetin, catechin, pyromucic acid, syringic acid, Demethylvestitol, 1,3,5-benzenetriol, ononin, and epicatechin) were extracted from SSD acetoacetate; TGL-16 centrifuger was made in Shanghai 6th Medical Equipment Factory; CO2 incubator was made in SANYO Company, Japan; MK inverted microscope was provided by OLYMPUS Company, Japan.METHODS: Experimental grouping: Mice were randomly divided into 29 groups, including normal group; control group; gallocatechin high-, medium-, low-dose groups; formononetin high-, medium-, low-dose groups; catechin high-, medium-, low-dose groups; pyromucic acid high-, medium-, low-dose groups; syringic acid high-, medium-, low-dose groups; Demethylvestitol high-, medium-, low-dose groups; 1,3,5-benzenetriol high-, medium-, low-dose groups; ononin high-, medium-, low-dose groups; epicatechin high-, medium-, low-dose groups with 12 mice in each group. Experimental intervention: All the mice except the mice in normal group had been given total body sublethal dose of irradiation by 60Co γ-ray (215.3 rontgen/min, 4 Gy dose rate, irradiation time of 107.5 seconds). Normal saline was injected intraperitoneally into 8 mice in normal group and control group at the third day after inadiation. Stored solution 2,0.4,0.08g/L of each monomer was intraperitoneally injected into the mice in each monomer high-, medium-, low-dose groups, respectively, at the third day after irradiation. Experimental evaluation: Thirty minutes after administration, blood of 8 mice in normal, control group and 12 mice in other groups was collected and normal, control and each dose monomer-containing serums were obtained after centrifugation for 15 minutes, filtering through 0.45μm filter membrane. Then 4 mice in normal and control group were killed to study the effects of nine monomers on proliferation of HPC in marrow-depressed mice by counting erythrocyte colony-forming unit (CFU-E), burst-forming uniterythroid (BFU-E), granulocyte-macrophage colony-forming unit (CFU-GM), and megakaryocyte colony-forming unit (CFU-Meg).MAIN OUTCOME MEASURES: CFU-GM, CFU-E, BFU-E, and CFU-Meg in each group. RESULTS: Totally 348 mice were included in the final analysis. CFU-E: The quantity of CFU-E in high-dose of catechin, gallocatechin, syningic acid, and epicatechin groups was significantly higher than that in the control group (P<0.05-0.01) while the quantity of CFU-E in medium-and low-dose of catechin and medium-dose of gallocatechin was also significantly higher than that in the control group (P<0.05). CFU-GM: Except pyromucic acid and ononin groups, the amount of CFU-GM in other groups was significantly higher than that in the control group (P<0.01). BFU-E: Compared with control group, the amount of BFU-E remarkably increased under the effect of each dose of catechin, gallocatechin, syringic acid and high-, medium-dose of epicatechin (P<0.05). CFU-Meg: The amount of CFU-Meg in high-, low-dose syringic acid groups, low-dose gallocatechin groups and each dose group of catechin and epicatechin was significantly higher than that in the control group (P<0.05). Amount of all colonies in the control group was significantly lower than that in the normal group (P<0.01). CONCLUSION: Nine monomers extracted from SSD can promote the proliferation of HPC in bone marrow depressed mice. In particular, the activity of catechin to stimulate proliferation is the strongest.
2.Anatomy and histopathology of apocrine sweat glands in axillary fossa
Qing WANG ; Dalie LIU ; Jinhuang WANG ; Bing CHEN ; Bohua CHEN
Chinese Journal of Medical Aesthetics and Cosmetology 2011;17(3):212-215
Objective To investigate the distribution range and depth of the apocrine sweat glands of the axillary fossa,in order to supply with anatomic and histopathologic basis in the treatment on axillarv osmidrosis.Methods From December 2008 to ()ctober 2010,2 biopsy samples(with axillary osmidrosis),8 biopsy samples(normal,without axillary osmidrosis),were employed into the axillarv anatomy study. 25 patients with severe axillary osmidrosis were observed both maerographicallv and microscopically by using of operation and histopathological methods.Results Secretory portion of apocrine sweat glands was seen clearly,it was pitchy millet-like granules on axillary osmidrosis corpse,and pink millet-like granules in vivo.Secretory portions distributed most within the armpit hair area,exceeded the edge of armpit hair line,but not surpassed the edge of armpit hair line 1.0 cm.The depth of the apocrine sweat glands located vertically at superficial fat tissues between the dermal reticular 1aver and superficial fascia layers which were dissected away easily.Trimming with scissors under dermaIlayer,the secretory portion of apocrine sweat glands was removed cleanly without harms to reticular laver of dermas.Secretory portions became ducts under reticular layer of dermas.White Drominence-like granules were proved to be the compomers of hair follicle and sebaceous glands through Dathological section.Conclusions In order to treat axillary osmidrosis effectively,the secretary portion should be removed away through cutting off the tissues between the dermal reticular layer and suDerficial fastia layers;the ducts of apocrine sweat glands should be handled with removing hair follicle under the reticular layer of dermas.0peration area should not exceed 1.0 cm off the edge.
3.The application of associative approach to general surgery class teaching
Shengyi WANG ; Xin WANG ; Xingcun LIU ; Xianliang CHEN ; Yi LIU
Chinese Journal of Medical Education Research 2011;10(9):1107-1108
According to the characteristics of general surgery class teaching,methods and experiences of the application of associative approach to general surgery class teaching were analyzed,such as word,picture,contrast,comprehensive,analogical and association,which is advantageous to the improvement of class teaching methods,effects and students' study interests and ideation.
4.Effects of different nutrition intervention on alimentary tract reconstruction in knowledge and practice nutrition and efficacies of patients with type 2 diabetes mellitus
Ziqin WANG ; Yanrong LIU ; Xia WANG ; Hongbin LIU ; Yongchun CHEN
Chinese Journal of General Practitioners 2014;13(10):856-858
A total of 206 patients of type 2 diabetes mellitus (T2DM) were assigned into the trial group (n =156) and the control group (n =50) according to whether real object-based diabetic diet was provided.Traditional nutritional education for both groups during hospitalization.The patients in the trial group received a real object-based diabetic diet guided by a nutritionist who adjusted feeding regimens and skills before and after operation.The control group had a free access to a normal diet.The patient understanding of knowledge,attitude and practice (KAP) was examined by nutrition surveys.And their postoperative nutrition states and complications were assessed by questionnaires during a 6-month follow-up.The total average score of cognitive divided was 93.4 ± 7.5,the average score of diet therapy knowledge 13.8 ± 1.6 and the average scores of attitude and practice 9.6 ± 1.9 and 32.2 ±3.9.Significant differences existed between two groups (P < 0.05).The incidence rates of hypoglycemia,hyperglycemia and gastrointestinal obstruction were lower than the control group (P < 0.05,P < 0.01).It suggested that real object-based diabetic diet guidance plus traditional nutrition education could improve the KAP level and may lower the incidence of postoperative complications in T2DM patients with gastric bypass.
6.The usage of continuous suction through catheter in the surgery of endoscopic correction of nasal septum without nasal packing
Shouhou LIU ; Chen TANG ; Yibing WANG
Chinese Journal of Primary Medicine and Pharmacy 2011;18(4):497-499
ObjectiveTo explore the feasibility of non-nasal packing after correction of nasal septum. Methods53 cases of simple deviation of nasal septum were underwent endoscopic correction of nasal septum.The continuous suction in surgical cavity through catheter without nasal packing after surgery was applied to 46 cases with intact double-mucosa or little wound that could be sutured in front of nasal septum. ResultsOf the 46 patients,the volume of the bleeding 3 days after the operation were(8.1 ± 5.6)ml.The degree of the nasal mucosa edema in 33 patients were lightened than others,the space between the inferior nasal concha and the nasal septum were fine as well as the ventilation of the nasal cavity.Among those cases,there were 13 patients with severe nasal mucosa edema(5 cases were allergic rhinitis)which were treated with ephedrine and furaciline solution or glucocorticoid,as the results,the nasal mucosa shrinked,and the patients could respire well.The catheter were extracted 3 days after the operation until the primary healing.All the cases were healing well without the the nasal septum hematoma and other complications which were follow up more than half a year. ConclusionThe method of continuous suction in surgical cavity through catheter without nasal packing was feasible if double nasal septum mucosa was intact after correction of nasal septum.
7.Survey of present medical services for foreigners by large public hospitals in Hangzhou
Shucui WANG ; Haigang LIU ; Haiyong CHEN
Chinese Journal of Hospital Administration 2011;27(5):355-358
The study focused on tertiary public hospitals in Hangzhou,investigating the comments of both hospitals workers and foreigners in the city with questionnaires and literature search.The foilowing four problems were identified in the study in the foreigner medical services in Hangzhou:Communication barriers between doctors and foreign patients,insufficient communication of medical service information,poor service environment and service attitude,and payment mechanism for medical insurance and charges.On such basis,the authors recommended policy changes for the government to improve foreigner-oriented medical services,including building the regulations up to intemational customs for medical services,reforms in the payment system,medical insurance management,as well as planning and promotions of foreigner-related service institutions,and management strategies for key elements within the hospital
8.Adult reconstruction plate of humeral shaft for 32 children with femoral shaft fracture:Follow-up analysis
Xiaoqiang LIU ; Zongxiong CHEN ; Wanzong WANG
Chinese Journal of Tissue Engineering Research 2010;14(17):3193-3196
BACKGROUND:Femoral shaft fracture is common in children Various methods of treatment can be used successfully,depending On the age of the child and the type of fracture.OBJECTIVE:To evaluate the feasibility of adult reconstruction plate of humeral shaft for pediatric femoral shaft fracture.METHODS:A total of 32 children with femoral shaft fracture were treated with adult reconstruction plate of humeral shaft in First Department of Orthopedics,Fuzhou General Hospital of Fujian Medical University,including 20 males and 12 females aged 6.7years(5-8 years).All patients were treated with incision reduction and adult reconstruction plate of humeral shaft.The incision length should be made as short as possible according to the fracture type The result of surgery was determined using clinical and radiographic examinations The pain condition was evaluated using visual analog scale method before and 3 days following surgery.RESULTS AND CONCLUSION:The patients were followed up for 1-2 years(average 1.5 years).All fractures were healed 1-2months postoperatively,and the internal fixator was removed 4-8 months postoperatively.The affected limb was shortened0.6-1.5 cm(average 1.1 cm)in 3 cases.Overgrowth was obsewed in the other patients by 0.3-1.2 cm The average overgrowth length was(0.64±0.312)cm in 29 patients.At 3 days postoperatiVely,the mean subjective pain was significantly reduced,and range of motion was improved compared with the day before surgery There was no infection or implant displacement or re-fracture.It is feasible to use adult reconstruction plate of humeral shaft for paediatric femoral shaft fracture.
9.Magnifying endoscopy combined with FICE imaging in the diagnosis of early gastric cancer
Huan WANG ; Xiaoguang CHEN ; Haifeng LIU
Chinese Journal of Digestive Endoscopy 2012;29(11):621-624
ObjectiveTo evaluate magnifying endoscopy combined with flexible spectral imaging color enhancement(FICE)for diagnosis of early gastric cancer.MethodsThe suspicious small depressive lesions(SDL) was further studied with magnifying endoscopy or magnifying endoscopy combined with FICE from April 2009 to March 2011 in our hospital.The endoscopic diagnostic criteria of early gastric cancer was made according to the structure of the pit,the microvascular and the demarcation line.ResultsIn 74 SDL,17 were pathologically diagnosed as cancer,and 56 were noncancer.The sensitivity,specificity and accuracy of magnifying endoscopy were 41.18%,94.74%and 82.43%,respectively,which were 86.67%,96.49% and 91.89%,respectively for magnifying endoscopy combined with FICE.The diagnostic sensitivity of magnifying endoscopy combined with FICE was significantly higher than that of magnifying endoscopy (P <0.05 ).ConclusionMagnifying endoscopy combined with FICE can reveal the structure of the pit,microvascular and demarcation line more clearly.The endoscopic diagnostic criteria is a more comprehensive description of the mucosal micro-morphological features of early gastric cancer.
10.Comparison of effects of the different dosage MK-801 on recognition memory in rats
Dong WANG ; Weiqing LIU ; Xiaogang CHEN
Chinese Journal of Behavioral Medicine and Brain Science 2013;(6):481-483
Objective To observe the behavioral effects of acute administration of dizocilpine (MK-801) in rats,and to determine an appropriate doses of the drug to mimicking memory deficits of schizophrenia.Methods 192 rats were randomly divided into model groups and control group,and given different doses of MK-801 or saline.Locomotor activity,pre-pulse inhibition (PPI) test and novel object recognition test were studied respectively.Results The spontaneous activity increased in a dose-dependent manner after the treatment of MK-801.The total distances of locomotor activity in 0.3 mg/kg group((127.04 ± 32.35) m) exhibited a significant difference compared with control group((35.34 ± 12.81) m,P < 0.05).MK-801 decreased PPI in dose-dependent manner(P < 0.01).MK-801 0.1 mg/kg((103.45 ± 68.04) %) and 0.3 mg/kg ((41.55 ± 62.93) %) groups showed significant differences compared to control group ((200.39 ± 30.97) %) in PPI.The discrimination index of 0.03 mg/kg group((15.78 ± 6.23) %) and 0.1 mg/kg group((22.42 ± 3.85) %) were lower than that in control group((39.42 ±3.86)%,P<0.05).Conclusion It is necessary for select right doses for model different endophenotypes of schizophrenia by MK-801.0.03 mg/kg of MK-801 is a relatively appropriate dosage to cause recognition memory damage.