Objective:To evaluate the efficacy of electroacupuncture(EA)in enhancing the recovery of gastrointestinal function after laparoscopic cholecystectomy(LC). Methods:Randomized controlled trials(RCTs)of EA treatment in the postoperative period of patients undergoing LC were searched.Studies were obtained from Excerpta Medica Database(EMBASE),PubMed,Cochrane Library,Wanfang Academic Journal Full-text Database(Wanfang),China National Knowledge Infrastructure(CNKI),China Biology Medicine Disc(CBM),and Chongqing VIP Database(CQVIP)from inception to December 10th,2022.RevMan 5.4.1 was used to perform the meta-analysis.The Cochrane tool was used to assess the risk of bias.Mean difference(MD)and confidence interval(CI)were used for statistical descriptions. Results:A total of 7 studies were included in the meta-analysis.The meta-analysis found that the EA group had a shorter time to the first flatus[P<0.001,MD=-5.32,95%CI(-6.42,-4.21)],bowel movement recovery[P<0.001,MD=-6.22,95%CI(-8.11,-4.34)],and the first defecation(P<0.001,MD=-11.08,95%CI(-15.78,-6.39)]than the control group. Conclusion:EA treatments can promote the recovery of gastrointestinal function after LC.

Objective To study the feasibility and safety of hand-assisted laparoscopic modified Sugiura procedure for portal hypertension. Methods Ten patients with cirrhotic portal hypertension and splenomegaly underwent hand-assisted laparoscopic modified Sugiura procedure. Results The operation was successful in all 10 patients. Mean surgical time was 189.5 minutes, Mean blood loss was 141 ml. There was no mortality nor serious postoperative complications. The mean postoperative hospital stay was 10. 5 days. Conclusions Hand-assisted laparoscopic modified Sugiura procedure is feasible and safe. It helps to reduce operative difficulty and control intraoperative bleeding for patients with portal hypertension.

Objective To study the clinical value of tamsulosin in prevention of urinary retention after radical hysterectomy.Methods Sixty-six patients after radical hysterectomy were enrolled in this study, and divided into two groups in random.Thirty-three cases in the treatment group were treated with tamsulosin 0.2 mg once every night,3 days before the catheter was drawn.While 33 cases in the control group only with placebo.Catheter keeping days, residual urine volume at first extraction,the rate of urinary retention and urinary tract infection,hospitalization time and drug adverse reaction were compared in two groups.Results Catheter keeping days and hospitalization time were shorter in the treatment group than those in the control group(P< 0.05).The residual urine volume at first extraction was(38.2 ± 5.6) ml in the treatment group and (168.5 ± 11.8) ml in the control group,there was significant difference between two groups (P< 0.05).The rate of urinary retention was 18.2%(6/33) in the treatment group and 36.4%(12/33) in the control group,there was significant difference between two groups (P <0.05).There was no adverse reaction resulted from tamsulosin in the treatment group.Conclusion Tamsulosin is an effective drug which could prevent and treat the urinary retention after radical hysterectomy.

Objective:To prepare a novel dental lithium disilicate glass-ceramic,and to study its properties.Methods:A2 colored novel glass-ceramic was prepared by sintering technique.The flexural strength,density,elastic modulus,hardness,fracture toughness, translucency and microstructure of the novel glass-ceramic and IPS e.max Press (LT A2,MO1 and HO1 )ceramic ingots were studied. Results:The novel glass-ceramic demonstrated a lower flexural strength (31 5 MPa)than MO ceramic ingot(338 MPa)(P <0.05). The other mechanical properties of the novel glass-ceramic were similar to those of LT and MO ceramic ingots(P >0.05).The translu-cency parameter of the novel glass-ceramic(21 .2)was higher than that of HO(1 6.5)but lower than that of LT(27.8)and MO(27.5) ceramic ingots(P <0.05).SEMimages showed an interlocking microstructure of rod-shaped Li2 Si2 O5 crystals in all the glass-ceramics investigated.Conclusion:The mechanical properties,translucency and microstructure of the novel glass-ceramic are similar to those of IPS e.max Press ceramic ingots,which can meet the requirements of clinical application.

Objective Laminectomy is destructive to bone structure in spine , which affect spinal stability .This article was to investigate the effect on spinal stability after laminectomy in different segments of vertebral plate in the treatment of lumbar intraspinal tumors. Methods Retrospective analysis were made on the data of 143 patients with lumbar intraspinal tumors from January 2009 to June 2012 in 6 hospitals.All the patients underwent laminectomy with no use of inner regular apparatus during the operation .JOA evalu-ation was applied to observe short-term efficacy , while ASIA scale for long-term efficacy .Comparison was made on lumbar spinal stability before operation and in the last visiting . Results From the observation of short-term efficacy, JOA evaluation score rised from (1.12 ± 0.65)to (1.97 ±0.71).Form the observation of long-term efficacy, ASIA scale classification was as follows:4 cases of Grade I, 6 cases of Grade II, 14 cases of Grade III, 53 cases of Grade IV and 66 cases of Grade V.In the following 12-30 months′visiting, all patients were covered.In the last postoperative visiting, patients suffering spinal instability after laminectomy were as follows:2 of 45(one seg-ment), 9 of 47(two segments), 5 of 27 (three segments) and 2 of 14 (four segments).From the observation on the postoperative spinal sta-bility and the segments in laminectomy , spinal stability of one-segment group was significantly higher than that of multi-segment group ( P=0.047).No significant difference exist between the groups of less than 2 segments and more than 3 segments as well as the groups of less than 3 segments and more than 4 segments. Conclusion A single seg-ment laminectomy on lumbar intraspinal tumors showed good postopera-tive spinal stability .But laminectomy in two or more segments implied greater risk of postoperative spinal instability .

Objective: Based on nationwide cardiovascular surgery registry database, to analyze the current status and future development of minimally invasive cardiovascular surgery (MICS) in China.
Methods: There were 45 institutions from 19 provinces nationwide involved in Chinese cardiovascular surgery technique registry study. A total of 16480 adult patients with cardiovascular surgery from 2010-09 to 2012-03 were divided into 2 groups, Conventional surgery group, n=14503 and MICS group, n=1977. The basic clinical conditions were analyzed and compared between 2 groups in order to explore the current status and future development of MICS in China.
Results: Compared with Conventional surgery group, the patients in MICS group had the younger age, better and stable pre-operative condition. In MICS group, compared with 4 other common procedures, the patients who received hybrid procedure had obviously shorter cardiopulmonary bypass (CPB) time, aortic occlusion time, ventilator using time, ICU and in-hospital stay time, meanwhile decreased post-operative drainage volume;except for Robotic surgery, it required less red blood cells and plasma at during and post-operative time, all P<0.01. There were 12 (0.6%) in-hospital death in MICS group, the total complication rate was at 4%.
Conclusion: MICS are widely used in China, its short-term safety and efifcacy are conifrmed. Upon cardiovascular disease spectrum changing, the MICS procedures will be adjusted accordingly.

Comprehensive biochemistry experiment,which is interlocked and has difficulties in a certain degree,requires considerable knowledge,multiple techniques and long time.In order to ensure the smooth progress of the experiment,biochemistry and molecular biology department of Hebei medical university has taken following measures in teaching preparation and teaching implementation:building a specialized laboratory;performing collective lesson preparation and pre-experiments;technical teaching;teaching with multimedia equipments;students submitting experimental preparatory reports before class and then completing the experiments in groups.These measures achieved the intended purpose of setting up a comprehensive experiment.

Objective To observe the peripheral arterial Doppler flow velocity curve changes and elucidate the blood flow characteristics by adding extra pressure on the limbs,and to provide evidence for better diagnosis of peripheral arterial diseases by ultrasound.Methods Color Doppler ultrasound instrument was used to record the brachial artery(BA),radial artery(RA),common femoral artery(CFA) and popliteal artery(POA) Doppler flow velocity curves both at rest and under different grades of distal and proximal limb pressuring in 40 randomly selected healthy adults.The peak systolic and early diastolic reverse flow velocity(PSV,PRV) and the resistance index (RI) were measured and analyzed.Results Three-phase waveform was seen at rest.Significant changes were noticed in PRV and RI under distal pressuring,while no significant difference was seen in PSV between groups.Conclusions Normal peripheral arteries show pulsed step-by-step blood flow pattern along with the cardiac cycles.Peripheral arterial Doppler flow curves changes regularly with limb grading pressuring.

OBJECTIVEImpulse noise was adopted in adult rats to built acute deafferent animal model. Differential proteomics techniques were applied to detect the changes of protein expression in the auditory cortex before and after the noise exposure.

METHODSThirty adult SD rats were divided into three groups: normal group, rats with acute noise exposure and rats 28 days recovery after noise exposure (n=10/group). All animals were exposed to impulse noise at 156 dB for 50 pulses with a rise-time of 100 µs and duration of around 0.25 ms. ABR was used to evaluate the auditory function. The two-dimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption ionization time-of-flight mass spectrometer (MALDI-TOF-MS) were used to identified the differential protein expression.

RESULTSCompared with the normal group, ABR thresholds were found significantly increased at 2, 4, 8, 16, 32 kHz (P<0.05) in the acute and recovery groups. There was a 40-60 dBSPL ABR threshold shift at all tested frequencies immediately after impulse noise exposure. There was a partial recovery of ABR thresholds at 7 day to 28 days after impulse noise exposure. In addition, it seemed that the thresholds were rather stable and no further ABR threshold recovery was observed from 14 day to 28 days after the impulse noise exposure. Using differential proteomic techniques, 36 spots containing 27 proteins were revealed and identified in auditory cortex. Those proteins are related to cytoskeleton, neurotransmission, energy supply, mitochondrial function and synaptic remolding.

CONCLUSIONSImpulse noise may influence the function of microtubule transport and cell metabolism, there after affect the neurotransmission of auditory neurons. The compensatory changes such as pre- and postsynaptic or such related functional changes may also happen in auditory cortex after the deafferentation treatment.

Animals ; Auditory Cortex ; metabolism ; physiopathology ; Evoked Potentials, Auditory, Brain Stem ; Hearing Loss, Noise-Induced ; metabolism ; physiopathology ; Male ; Proteomics ; Rats ; Rats, Sprague-Dawley