1.Research on achievement and application of seamless integration between Real-time dynamic control system for orthopedic implant consumables and HIS
China Medical Equipment 2014;(9):42-44,45
Objective:To investigate the methods of seamless integration between supplies management system for orthopedic implant consumables and HIS, and realize real-time dynamic monitoring of orthopedics implant material.Methods: After full investigation and process reengineering, we have carried out the dictionary to reconsider and code corresponding to orthopedic implant consumables, by implementing integration with HIS, successfully establishing the real-time dynamic supervision mode of orthopedics implant material.Results: Two systems have completed seamless integration, and safely use more than three years with remarkable application results.Conclusion: We make the successful innovation of advanced management ideas combined with information technology, to solve the problem of orthopedic implant consumables management and provide adequate protection to continuously improve the level of medical safety and quality management.
2.Negative feedback effection of DNA methylation on expression of DNMT1 in patients with systemic lupus erythematosus
Chinese Journal of Immunology 2016;32(4):542-545,552
Objective:To analyse the whole DNA methylation status , expression of DNMT1 and DNA methylation status of DNMT1 promoter from patients with systemic lupus erythematosus ( SLE) .To assess the negative feedback effection of DNA methylation on the expression of DNMT1 in the patients with SLE.Methods:The whole DNA methylation status in T cells from 34 SLE patients and 23 healthy controls was assessed by the specific monoclonal antibodies to 5-methylcytosine (5-mc) and the DNA methylation status of DNMT1 promoter was assessed by the Bisulfite Conversion Kit and sequencing.Real time RT-PCR was applied to analyse DNMT 1 mRNA levels in T cells from the patients and controls.Results: SLE patients had siginificantly whole DNA hypomethylation than controls(P<0.05),and the whole DNA methylation was negative correlated with the SLE-DAI.There was no difference in levels of DNA methylation of DNMT1 promoter between patients and controls ,also no correlation between the levels of DNA methylation of DNMT 1 promoter and DNMT1 mRNA.Conclusion:There was no negative feedback effection of DNA methylation on the expression of DNMT 1 in the patients with SLE.The mechanism of lower expression of DNMT 1 in patients with SLE should be studied further.
3.Research progress of long non-coding RNA in regulating cell apoptosis and autophagy
Jing XU ; Qiulin XU ; Xiaohua GUO
Chinese Journal of Pathophysiology 2015;(8):1525-1530
Longnon-codingRNAs(lncRNAs)areagroupofRNAslongerthan200bpwithoutprotein-coding capacity and play an important role in epigenetics , transcription regulation and post-transcription regulation .Recently, studies have shown that dysregulation of lncRNAs caused cell cycle disorders , and abnormal activities of cell apoptosis and autophagy , contributing to a variety of diseases .Therefore , the role of lncRNAs in regulating cell death is expected to lead to the discovery of potential novel diagnostic markers and therapeutic targets .
4.Comparison of Cryo/cuff Systems and intermittent cold compress with hypertonic saline following total knee arthroplasty
Xiaohua XU ; Xiaofeng LI ; Yuanfei XIONG
Chinese Journal of Tissue Engineering Research 2013;(48):8325-8330
BACKGROUND:Swel ing after knee arthroplasty can produce tension bul ae, worsen pain, and even block venous return. Thus, intraventricular pressure of osseous fascia increases, which can block arterial blood circulation, even induce osteofascial compartment syndrome.
OBJECTIVE:To evaluate efficacy of Cryf/cuff Systems and intermittent cold compress with hypertonic saline fol owing total knee arthroplasty.
METHODS:A total of 60 patients with unilateral total knee arthroplasty were randomly assigned into two groups. Persistent freezing group received treatment with Cryo/cuff Systems after arthroplasty, and intermittent cold group received intermittent cold compress with hypertonic saline after arthroplasty.
RESULTS AND CONCLUSION:Significant differences in circumference differences in superior patel ar pole, patel ar midpoint, and thickest point of gastrocnemius muscle were detected between persistent freezing group and intermittent cold group at 1 and 2 days after total knee arthroplasty (P<0.05), but no significant difference was detectable at day 3. Visual analogue scale scores at rest and during activity were significantly lower in the persistent freezing group than those in the intermittent cold group at 1 and 2 days after total knee arthroplasty (P<0.01), but no significant difference was visible at day 3. Range of motion was better in the persistent freezing group than that in the intermittent cold group at 1, 2 and 3 days (P<0.01), but no significant difference was observed at 1 and 2 weeks. Mean skin temperature was higher in the persistent freezing group than that in the intermittent cold group at 3 days (P<0.05). Results suggested that Cryf/cuff Systems could lessen tissue swel ing and pain, increased range of motion compared with intermittent cold compress with hypertonic saline at 1 and 2 days after total knee arthroplasty, but no significant difference was detected at day 3. That is, intermittent cold compress with hypertonic saline can reach the same effect as Cryf/cuff Systems at day 3.
5.Absorption Characteristics and Mechanism of P-glycoprotein Mediated Transport of Oleanolic Acidin Across the Membrane In Vitro
Mingfang YANG ; Xiaohua CHENG ; Wenwei XU
Herald of Medicine 2017;36(3):247-251
Objective To explore the absorption characteristics and mechanism of P-glycoprotein (P-gp) mediated transport of oleanolicacid (OA)across membrane in vitro.Methods The intake and transport of OA were evaluated by an HPLC/MS quantitative detection method.Safe concentration range of OA was determined by MTT.The effect of different drug concentration,incubation time,pH and temperature on the intake of OA by Caco-2 cells were investigated.The effect of P-gp inhibitor on the transmembrane transport of OA was investigated by the Caco-2 cell monolayer model,and the apparent permeability coefficient (Papp) was calculated.Results The uptake of O A was concentration-time dependent and correlated negatively to temperaturein Caco-2 cells within the safe concentration range,but was not significantly affected by pH value.Compared with controls,the Papp significantly changed when the P-gp inhibitor was added to the model(P < 0.05).The apparent permeability ratio decreased from 2.90 to 0.95.Conclusion The absorption of OA was primarily by passive diffusion and might be mediated by the effiux by P-gp.
6.Urinary tract infection and aseptic meningitis:a case report with literature review
Xiaoyue HU ; Xiaohua XU ; Ying HUA
Journal of Clinical Pediatrics 2014;(11):1024-1027
Objective To analyze and investigate clinical characteristics, pathogenesis and treatment of urinary tract infection and aseptic meningitis. Methods Clinical features and laboratory tests of a two-month-old baby girl with urinary tract infection and aseptic meningitis were reported. Results The patient complained of fever, neck stiffness and a bulging fontanel, accompanied by congestion and abnormal secretion of urethra. The cerebrospinal lfuid (CSF) white blood cell count was 30×106/L. The blood culture and the CSF culture were both negative. And the urine culture was positive for Enterococcus faecium. The patient received a 10-day course of intravenous antibiotic therapy. The prognosis is good with no recurrence of the disease. Conclusions Aseptic meningitis can be concomitant with urinary tract infection, The probable hypothesis may be that sterile CSF pleocytosis is mediated by urinary tract infection. Knowledge of this may prevent unnecessary antibiotics therapy for presumed bacterial meningitis.
7.Characteristics of acid reflux in Barrett's esophagus.
Junying, XU ; Jie, CHEN ; Xiaohua, HOU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2002;22(3):235-6, 264
To determine the relationship between Barrett's esophagus (BE) and features of gastroesophageal acid reflux, 24 h esophageal pH monitoring was performed in 90 patients. The patients were divided into 3 groups: 31 subjects with BE, 21 with mild esophagitis and 38 with severe esophagitis. The following parameters were evaluated: the percentage time of pH < 4; the number of reflux episodes over 5 min; the duration of longest episodes and DeMeester score over total period and the auterior three parameters in erect and supine position. All these parameters in BE were significantly different from those with mild esophagitis (P < 0.01) and not significantly different from those with severe esophagitis (P > 0.05). During supine position all the above parameters in BE were significantly different from those with reflux esophagitis (P < 0.05). It is concluded that the quantity of acid reflux is not an important factor in development of BE in gastroesophageal reflux (GER), and the acid reflux in supine position might be important in development of BE in GER.
Barrett Esophagus/etiology
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Barrett Esophagus/*physiopathology
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Esophagitis, Peptic/etiology
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Gastroesophageal Reflux/*complications
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Hydrogen-Ion Concentration
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Supine Position
8.Screen of single nucleotide polymorphism of DNA methyltransferase 1 in patients with systemic lupus erythematosus
Jinhua XU ; Xiaohua ZHU ; Weimin SHI
Chinese Journal of Dermatology 2009;42(11):754-755
Objective To screen single nucleotide polymorphism(SNP)of DNA methyltransferase 1 gene in patients with systemic lupus erythematosus(SLE).and to investigate the significance of abnormal expression of DNA methyltransferase in the pathogenesis of SLE.Methods Peripheral blood mononuclear cells(PBMCs)were obtained from 11 patients with SLE and 12 normal human controls.DNA was extracted from the PBMCs.and PCR was performed to amplify some exons(1 to 7)and corresponding introns followed by direct sequencing.Results There was a 21397T/C SNP in the intron 7 between exon 7 and exon 8 of DNA methyltransferase 1 gene in patients with SLE.The frequency of CC homozygote increased in patients with SLE compared with that in normal controls(5/11 vs 1/12,X~2=4.10,P<0.05).Conclusions There is a 21397T/C SNP in DNA methyltransferase 1 gene in patients with SLE.which may be a component of genetic background underlying the abnormal expression Of DNA methyltransferase 1.
9.Application of self- management programme in home care of oncohematologic patients with peripherally inserted central catheters
Jun XIE ; Xiaohua WANG ; Xiaomin XU
Chinese Journal of Practical Nursing 2015;(36):2731-2736
Objective To investigate the effect of self- management programme in home care of oncohematologic patients with peripherally inserted central catheters(PICC). Methods Seventy oncohematologic patients with PICC were divided into the control group and the intervention group with 35 patients in each group by random digital table method. The control group received the routine care. The intervention group received the self- management programme. Self- care ability, anxiety, catheter- related complications and maintenance cost were observed before and on the 10th day and 30th day after intervention. Results On the 10th day and 30th day after intervention, the total score and scores of each dimension of self- care ability in the intervention group were significantly higher than those in the control group, P<0.05 or 0.01, the differences were significant. The score of anxiety in the intervention group was significantly lower than that in the control group [for the patients on the 10th day, 47.64±4.40 vs. 51.14±6.28,on the 30th day,44.36±3.71 vs. 48.64± 5.54, t=3.40, 5.18, P<0.01; for the family members of patients on the 10th day, 47.36±2.12 vs. 50.57±3.99, on the 30th day,43.57±2.04 vs. 47.57±2.79, t=4.35, 7.42, P<0.01. The incidences of catheter- related complications were not significantly different between two groups, P>0.05. Conclusions Self- management programme can effectively improve the self-care ability, relieve the anxiety and prevent the catheter- related complications in home care of oncohematologic patients with PICC.
10.Application of Doppler combined with flap island on monitoring the post-operative blood supply of buried free flap.
Meiai XU ; Xiaohua JIANG ; Mang XIAO
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2013;27(24):1363-1365
OBJECTIVE:
To explore the feasible monitoring techniques for the buried free flap.
METHOD:
Buried free flaps in reconstruction were monitored using combined monitoring techniques in five cases of advanced hypopharyngeal cancer The monitoring effects were analyzed retrospectively.
RESULT:
The operations were carried out successfully and all the five patients got primary healing of incision without vascular crisis. Four patients need combined monitoring techniques to confirm the microcirculatory results of the buried free flap.
CONCLUSION
Application of Doppler combined with flap island was feasible on monitoring the blood supply of post-operative buried free flap, it is a good monitoring technique.
Aged
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Carcinoma, Squamous Cell
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diagnostic imaging
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pathology
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surgery
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Free Tissue Flaps
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blood supply
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Head and Neck Neoplasms
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diagnostic imaging
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pathology
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surgery
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Humans
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Hypopharyngeal Neoplasms
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diagnostic imaging
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pathology
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surgery
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Hypopharynx
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Male
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Middle Aged
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Postoperative Period
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Retrospective Studies
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Squamous Cell Carcinoma of Head and Neck
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Surgical Flaps
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blood supply
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Ultrasonography, Doppler