2.Distribution of flurbiprofen axetil in cerebral-spinal fluid after intravenous administration
Zhang HONG ; Feng YI ; Gu JIAN
Chinese Journal of Anesthesiology 2011;31(4):432-434
Objective To examine the distribution of flurbiprofen axetil in cerebral-spinal fluid (CSF) by determining the CSF concentration of flurbiprofen after iv administration. Methods Seventy-two ASA Ⅰ or Ⅱ patients of both sexes aged 18-75 yr weighing 54-82 kg undergoing spinal or combined spinal-epidural anesthesia for lower extremity or lower abdominal surgery were studied. Flurbiprofen axetil 1 mg/kg was injected intravenously.CSF 2 ml and venous blood 3 ml were obtained simultaneously every 5 min after iv injection for 45 min (T1-9 ) for determination of flurbiprofen concentration using high performance liquid chromatography, and the CSF/blood flurbiprofen concentration ratio was caculated. Results Flurbiprofen was not detected in CSF at T1,2 after iv injection in 3 and 4 patients. The CSF flurbiprofen concentration was significantly higher at T4-9, and CSF/blood flubiprofen concentration ratio higher at T5-9 than at T3 ( P < 0.05). There was no significant difference in CSF flurbiprofen concentrations among T4-9 ( P > 0.05 ) Conclusion Flurbiprofen is detected in CSF after iv injection, the CSF flurbiprofen concentration peaks at 20 min after iv injection and it lasts until 45 min after iv injection.
3.Effects of Xiatianwu total alkaloids on learning and memory impairment and the central cholinergic function in amnesic rats
Huiling ZHANG ; Zhenlun GU ; Yi CAO
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To observe the effects of Xiatianwu tota l alkaloids ( XA ) on learning and memory impairment and the central cholinergic f unction in rats with quinolinic acid microinjected into bilateral hippocampus. Methods Alzheimers disease (AD) rat models were made by damagin g bilateral hippocampus with quinolinic acid (150 nmol in 2 ?l for each hippoca mpus). XA 0.25, 0.5, 1 mg?kg -1 was administrated ig from 1 week before model established to 3 weeks after model established. Y-maze was used to measur e the learning and memory ability. The activity of the acetylcholinesterase ( AC hE ) in hippocampus and the contents of acetylcholine ( ACh ) was determined by spectrophotometry. Results Microinjection of quinolinic acid in to the rats hippocampus induced learning and memory dysfunction (P
4.Study on alterative regularity of somatosensory evoked potential for detecting re-domination process of corresponding cerebral cortex of affected extremity after healthy C_7 nerve root transfer
Yi ZHU ; Kaili ZHANG ; Yudong GU
Chinese Journal of Orthopaedics 2001;0(08):-
Objective To analyse the alterative characteristics of electrophysiology by detecting somatosensory evoked potential(SEP) during cerebral remodeling after transfer of healthy C7 nerve root both in patients and normal individuals. Methods From 2002 to 2003, 12 cases of the left total brachial plexus nerve root avulsion were surgically treated by transferring healthy C7 nerve root to impaired median nerve through bridged ulnar nerve. The waveform of SEP of bilateral cortical expressions were recorded after stimulating median nerve of impaired upper extremity at the wrist and elbow. Meanwhile, latent period and amplitude of wave of SEP, and nerve conduction velocity from the level of wrist to elbow were exhibited and compared. Results There were differences of the latency and amplitude of SEP in normal individuals between two sides of cerebrum to some extent. In the healthy sides (first group), difference of latency of SEP on two sides of cerebral cortex had no statistical significance but in the reverse for the amplitude of SEP. For the diseased sides(second group), difference of amplitude of SEP for both sides of cerebral cortex between the patients and the nonmal individuals were of statistical significance, but on the contrary for the change of latency of SEP. Conclusion Cerebral cortex dominating affected extremity is able to bring up functional remodeling electrophysiologically after nerve transfer of healthy C7 nerve root. Shortened latency and augmented amplitude discrepancy of SEP recorded on both sides of cerebral cortex were preliminary electrophysiological criterions. After contralateral C7 nerve root transfer, the examination of SEP can offer data of corresponding cortex "reinnervation", which provides objective evidence for further treatment to promote functional recovery and cortical plasticity.
5.Imaging Comparison of Myelogrpahy and CTM for Diagnosis of LumbarDisk Herniation(A Report of 200 Cases)
Yi XU ; Hong GU ; Maogen ZHANG
Journal of Practical Radiology 1992;0(11):-
Objective To assess the value of myelography and CTM for the diagnosis of lumbar disc herniation.Methods 200 patients diagnosed as lumbar disc heriniation based on clinical findings were reported.They were all examined with myelography and CTM prior to operation.Results Based on the operative findings the accuracy was 86% in myelography and 98.5% in CTM.Conclusion CTM is more accurate than myelography in the diagnosis of lumbar disk heriniation.
6.Prenatal ultrasound diagnosis of otocephaly and review of the literatures
Ai-qing, ZHANG ; Xiao-xin, ZHANG ; Yi-qun, GU
Chinese Journal of Medical Ultrasound (Electronic Edition) 2013;(7):548-553
Objective To investigate the ultrasound characteristics of prenatal fetus otocephaly . Methods Three prenatal fetus with otocephaly were examined with two -and three-dimensional ultrasoundand examined results were compared with the those of induced labor or autopsy ,and ultrasound characteristicsof prenatal fetus were analyzed and summarized .Results The ultrasound performance of three prenatal fetuswith otocephaly and the examination of the appearance after induced labor showed :(1) The most intuitiveinitial sonographic performance of otocephaly was manifested by the absence of stomach bubble andoverabundance of amniotic fluid.Among three fetus,one fetus had overabundance of amniotic fluid at the midstageof pregnancy,one fetus had normal amniotic fluid at the mid-stage of pregnancy and one fetus hadextremely high amount of amniotic fluid and absence of stomach bubble at late stage of pregnancy .(2) Allthree fetus showed agnathy and synotia (shifts of both ears to the midline) and microstomia deformity.(3) All three fetus had associated complications with deformity in other systems including two cases of patients withcleft lip and palat,both were the fracture unilateral cleft lip derived from small mouth .One fetus withdysmelia and one fetus with complicated cardiovascular deformity and situs inversus and .(4) The results ofexamination after induced labor or autopsy were consistent with those of the prenatal ultrasound examination . Conclusions Prenatal ultrasound examination is an effective and feasible means for the diagnoses ofotocephaly.When the symptoms of “absence of stomach bubble and extremely high amount of amniotic fluid ”occurred,the fetal ear and submaxilla should be examined to confirm stand -alone otocephaly prenatally.
8.A Relevant Research on Changes in Characteristics of N-glycan in Gastric Cancer and Its Relationship with TCM Syndromes
Weixing ZHANG ; Yi RUAN ; Qunhao GU ; Jianpeng JIAO ; Long LIU
Chinese Journal of Information on Traditional Chinese Medicine 2014;(9):36-39,40
ObjectiveTo discuss the changes in characteristics of N-glycan in gastric cancer and its relationship with TCM syndromes.Methods The blood samples of 138 gastric cancer patients and 120 healthy volunteers were collected. The changes in N-glycan were detected by DNA sequencer-assisted and fluorophore-assisted carbohydrate electrophoresis (DSA-FACE), and differences of N-glycan among different TCM syndromes were compared.Results At least 9 N-glycan peaks could be identified in all samples. Compared with the healthy volunteers, Peak1, Peak5, Peak9 and Peak2 of gastric cancer patients obviously increased (P<0.05,P<0.01), whereas Peak3, Peak6 significantly decreased (P<0.01). Peak6 of gastric cancer in stage I was obviously higher than stages II, III, and IV (P<0.01), while Peak9 in stage I was obviously lower than the other three stages (P<0.01). Peak1 was significantly lower in disharmony between liver and stomach type than stagnation of phlegm-dampness type, interior retention of toxin stagnation type, deficiency of both Qi and blood type (P<0.05,P<0.01);lower in impairment of yin due to stomach heat type, deficiency-cold in spleen and stomach type than deficiency of both Qi and blood type (P<0.01);lower in stagnation of phlegm-dampness type, interior retention of toxin stagnation type than deficiency of both Qi and blood type (P<0.05). Peak6 was higher in disharmony between liver and stomach type than impairment of yin due to stomach heat type, stagnation of phlegm-dampness type, interior retention of toxin stagnation type than deficiency of both Qi and blood type (P<0.01). Peak9 was much higher in deficiency of both Qi and blood type than disharmony between liver and stomach type (P<0.01), impairment of yin due to stomach heat type and deficiency-cold in spleen and stomach type (P<0.05, P<0.01).Conclusion The expression of N-glycan was specifically changed in gastric cancer. These variations could promote the metastasis of gastric cancer and potentially have certain correlation with TCM syndromes.
9.Species identification of freshwater snail Planorbella trivolvis and analysis of its potential distribution
Xiaoheng LI ; Shitong GAO ; Wenbiao GU ; Yi ZHANG ; Yunhai GUO
Chinese Journal of Schistosomiasis Control 2015;(3):268-272
Objective To identify the species classification of an ornamental Planorbidae from a flower market in Shanghai and analyze its potential distribution in China. Methods In August 2013,six freshwater snail specimens were collected from the Wanshang flower market. The species was identified by morphology and molecular biology. An ecological niche model was constructed based on the native geographic presence occurrence data,and projected onto the whole of China to predict the poten?tial distribution. Results Their shell external morphology suggested that the specimens belonged to Planorbella trivolvis(Say 1817)of Planorbidae,which is native in North America. The sequence data of a fragment of the mitochondrial cytochrome c oxi?dase subunit I(COI)confirmed its identification. A total of 2 294 georeferenced occurrence points in North America were car?ried out from the Global Biodiversity Information Facility databases and 614 records with coordinates were used to produce a North American native niche model by a maximum entropy method(Maxent). The projection on China results suggested high probabilities of occurrence mostly in Henan Province and its borderland with nearby provinces. Conclusions P. trivolvis is sim?ilarly with Biomphalaria species from shell morphology. It is the first records of the species in China,and the field dispersal is not clear.
10.Autologous peripheral blood stem cell transplantation combined with percutaneous transluminal angioplasty for diabetic lower extremity vascular disease
Lu GU ; Shumei ZHANG ; Xiang YU ; Yi YANG
Chinese Journal of Tissue Engineering Research 2016;20(14):2086-2091
BACKGROUND:Studies have found that peripheral blood stem cel s can highly differentiate into vascular endothelial cel s to promote blood vessel regeneration, and improve col ateral circulation, thereby achieving satisfactory outcomes in the treatment of limb ischemia. OBJECTIVE:To observe the clinical effect in diabetic lower extremity vascular disease patients undergoing percutaneous transluminal angioplasty combined with autologous peripheral blood stem cel transplantation. METHODS:Fifty patients hospitalized for diabetic lower extremity vascular disease from March in 2011 to December in 2014 were col ected:25 cases underwent percutaneous transluminal angioplasty as control group;another 25 underwent percutaneous transluminal angioplasty combined with autologous peripheral blood stem cel transplantation as combination group. At 1, 6, 12 months after surgery, subjective scores of affected limb pain and cold sensation were recorded, additional y, objective indicators, including ankle-brachial index, transcutaneous oxygen partial pressure, and claudication distance were detected. RESULTS AND CONCLUSION:Ankle-brachial index scores of the two groups were significantly increased, especial y at 1 month after surgery, but decreased at 6, 12 months, and there was a significant difference compared with that before treatment (P<0.05);at 1, 6, and 12 months, there was no significant difference between the two groups (P>0.05). At 1, 6, and 12 months after surgery, both of transcutaneous oxygen partial pressure and claudication distance in the two groups were significantly increased compared with those before treatment (P<0.05). Furthermore, compared with the control group, these two indicators in the combination group were significantly increased (P<0.05). Within 12-month follow-up, affected limb pain and cold sensation were improved in the two groups, especial y in the combination group. Inevitably, three cases had hypocalcemia during the col ection of peripheral blood stem cel s, and two cases developed fever and 3 cases appeared to have local exudation after surgery. All these symptoms were released by symptomatic treatments, respectively. In conclusion, percutaneous transluminal angioplasty combined with autologous peripheral blood stem cel transplantation for diabetic lower extremity vascular lesions can promote the establishment of affected limb col ateral circulation, to decrease the risk of limb ischemia, which achieves significant outcomes than percutaneous transluminal angioplasty used alone.