1.Value of electrocardiogram (ECG) in identifying acute occlusion sites of right coronary artery
Chinese Journal of General Practitioners 2015;14(7):545-548
Clinical data of 151 patients with acute occlusion of right coronary artery were retrospectively analyzed.Coronary angiography and electrocardiography (EEG) were performed in all 151 patients,angiography showed proximal-middle segment occlusion in 114 cases and distant segment occlusion in 37 cases.The correlation of ECG findings with coronary artery occlusion sites was analyzed.Results showed that EEG findings related to proximal-middle segment occlusion were:ST segment elevation in lead V4R ≥0.05 mV,Ⅲ degree atrioventricular block,ST segment depression in lead Ⅰ >0.1 mV,ST segment depression in lead AVL≥0.2 mV,ST segment elevation in lead l ≥0.25 mV,the total ST depression in lead V2,V3 and V4 ≥0.4 mV,the total ST depression in lead Ⅰ and aVL ≥0.25 mV;among which ST depression of Lead Ⅰ >0.1 mV,ST elevation of Lead V4R ≥0.05 mV and Ⅲ degree atrioventricular block were used to predict occlusion of proximal-middle segment of right coronary artery with 100% specificity.ECG findings related to distal segment occlusion were:ST depression in lead Ⅰ ≤ 0.1 mV,ST segment depression in lead AVL <0.2 mV,ST elevation in lead Ⅲ ≤0.25 mV,the total ST depression in lead V2,V3 and V4 < 0.4 mV,ST segment were not depression in lead V1-V5,the total ST depression in lead Ⅰ and aVL < 0.25 mV.Based on a 4-step flow method,ECG might be adopted to identify the acute occlusion sites in proximal-middle segment and distal segment of right coronary.
2.Biomechanical analysis of different fixation methods in the treatment of posteromedial tibial plateau fracture
Haifeng YANG ; Junwu HUANG ; Chunlin ZHANG
Chinese Journal of Tissue Engineering Research 2013;(26):4826-4832
10.3969/j.issn.2095-4344.2013.26.011
3.Study on Relation between Serum Leptin and TCM Syndrome Types in the Patient of Chronic Renal Failure
Wenqing ZHANG ; Xusheng LIU ; Chunlin HUANG ;
Journal of Traditional Chinese Medicine 1992;0(12):-
Objective:To explore effect of serum leptin level on nutriture in the patient of chronic renal failure(CRF)and the relation with TCM syndrome types of CRF.Methods:110 cases in CRF group were divided into 5 subtypes and 30 normal persons were used as control group.Serum leptin level,body height,body weight,and body mass index(BMI)were determined in both groups;and serum albumin,serum pre-albumin,transferin,serum creatinine,urea nitrogen,C-reaction protein,blood insulin,and nutrition risk index(NRI)were detected in CRF group.Results:Serum leptin level in CRF group was higher than that in the control group,and leptin level and nutritional index level in both the subtype groups of Qi-and Yang-deficiency of spleen and kidney were significantly different with those in other 3 subtype groups.Conclusion:High blood leptin is possibly one of the reasons inducing malnutriture of CRF patient,and serum leptin is possibly a partial basis of substances of Qi-and Yang-deficiency syndrome of CRF.
4.Effect of butylphthalide and sodium chloride injection postconditioning on focal cerebral ischemia-reperfusion injury and endoplasmic reticulum stress in rats
Xiujing HUANG ; Chunlin GAO ; Guoyi Lü
Chinese Journal of Anesthesiology 2013;33(12):1485-1488
Objective To investigate the effect of butylphthalide and sodium chloride injection postconditioning on focal cerebral ischemia-reperfusion (I/R) injury and endoplasmic reticulum stress in rats.Methods Thirty-six male SPF Sprague-Dawley rats,aged 2-3 months,weighing 260-280 g,were randomly divided into 3 groups (n =12 each):sham operation group (group S),focal cerebral I/R group (group I/R) and butylphthalide and sodium chloride injection postconditioning group (group Buty).The animals were anesthetized with intraperitoneal 10 % chloral hydrate 300 mg/kg.Focal cerebral I/R was induced by occluding right middle cerebral artery for 2 h followed by 24 h reperfusion in I/R and Buty groups.Butylphthalide and sodium chloride injection 2.5 mg/kg was injected via the tail vein immediately after onset of reperfusion in Buty group,while the equal volume of normal saline was injected in I/R group.Neurological deficits were assessed and scored at 24 h of reperfusion,and then the brain was isolated for detection of neuronal apoptosis (by TUNEL) and the expression of glucose-regulated protein 78 (GRP78) and caspase-12 in ischemic cerebral cortex (by immunohistochemistry) in brain tissues.Apoptosis index was calculated.Results Compared with group S,the neurological deficit scores and apoptosis index were significantly increased,and the expression of GRP78 and caspase-12 was up-regulated in I/R and Buty groups (P < 0.05 or 0.01).Compared with group I/R,the neurological deficit scores and apoptosis index were significantly decreased,the expression of GRP78 was up-regulated,and the expression of caspase-12 was down-regulated in group Buty (P < 0.05).Conclusion Butylphthalide and sodium chloride injection postconditioning can reduce focal cerebral I/R injury in rats,and inhibition of endoplasmic reticulum stressmediated cell apoptosis is involved in the mechanism.
5.Study of microsurgical anatomy and multi-slice helical CT scanning of cochlear aqueduct
Chunlei LU ; Chunlin HUANG ; Xiaoming QI
Medical Journal of Chinese People's Liberation Army 1983;0(02):-
Objective To obtain more detailed microsurgical anatomical data and multi-slice helical CT scanning of cochlear aqueduct for the translabyrithine approach. Methods Twenty cadaver heads(40 sides)fixed with formalin were dissected under a microscope ,and cochlear aqueducts were found and measured. Five cadaver heads(10 sides) were scanned by multi-slice helical CT. Results The width of external aperture of cochlear aqueduct was (2.64?0.82)mm. The length of cochlear aqueduct was (8.40?1.35)mm. The distance between cochlear aqueduct and cranial nerves Ⅸ, Ⅹ, Ⅺ, and that between the inferior petrosal sinus was(1.08?0.36 )mm,(2.71?0.63)mm,(4.52?1.25)mm, (1.14?0.46)mm, respectively. The distance between external aperture of cochlear aqueduct and the inferior margin of internal acoustic meatus aperture was (5.53?0.93)mm. The otic capsule segment of cochlear aqueduct could not be demonstrated on the coronal section. The petrosal portion could be demonstrated by both coronal and axial scannings. Conclusion The axial scanning was useful for detecting cochlear aqueduct. Cochlear aqueduct could be regarded as one of the landmarks in translabyrithine approach for cerebellopontile angle operation.
6.Phacoemulsification and foldable IOL implantation with limbal tunnel incision
Yong WU ; Zhenping HUANG ; Chunlin CAO ; Chunyan XUE
Journal of Medical Postgraduates 2001;14(3):226-228
Objectives: To evaluate the efficacy of phacoemulsification and foldable IOL implantation with limbal tunnel incision. Methods: A 3.2mm limbal tunnel incision was made on 72 eyes of 66 patients with senile, complicated and traumatic cataract. Phacoemulsification and foldable IOL implantation was performed. Visual acuity, corneal curvature and corneal topography were measured after the surgery. Results: One day, one week and one month after the surgery, visual acuity exceeded 0.5 in 69.4%, 80.6%,86.1% of the patients respectively. One week after the surgery, the mean astigmatism was (1.85±0.89)D(P<0.01), 0.30 D more than that before the surgery. Corneal topography showed that the incision was steep or flat. One month after the surgery, the mean astigmatism was (1.48±1.02)D,P>0.05,corneal topography had recovered. Conclusions: Phacoemulsification and foldable IOL implantation with limbal tunnel incision have comparatively simple, with less postoperative inflammation and faster recovery of visual acuity.
7.Comparison of serum protein profiles between people with successful aged 80 years and over in Bama versus Nanning city
Yeguang WU ; Yuanjiao HUANG ; Guobing ZHANG ; Chunlin ZHANG
Chinese Journal of Geriatrics 2012;31(11):1031-1034
Objective To compare the serum protein profiles between people with successful aged 80 years and over in Bama versus Nanning,to identify the possible causes of the long life expectancy in Bama.Methods We evaluated the serum protein profiles using surface-enhanced laser desorption ionization time-of-flight mass spectrometry (SELDI-TOF-MS) with 4 different chromatographic surfaces,including the weak cation exchange (CM10),immobilized metal affinity capture (IMAC) 30-Cu,strong anion exchange (Q10) and hydrophobic surface (H50) protein chip arrays in people with successful aged 80 years and over living in Bama versus in Nanning city.SELDI-TOF-MS had a molecular mass detection range of 2000-50,000 D,with a first signal-to noise (S/N) ratio of 5,frequency of peak cluster of over 15 %,and second S/N ratio of 2 and peak fluctuation of 0.3% (m/z).Results The total numbers of serum protein (peptide) peaks for people with successful aging in Bama and Nanning were 71 on CM10,46 on IMAC30-Cu,81 on Q10,and 52 on H50.Among subjects from Bama as compared with Nanning (P<0.05; mean >SD for each protein peak),there were 8 differently expressed protein peaks on CM10,of which 2 were upregulated and 6 downregulated; 7 on IMAC-Cu,of which 2 were upregulated and 6 downregulated; 5 on Q10,all of which were upregulated; and 6 on H50,of which 3 were upregulated and 3 downregulated.Conclusions There are marked differences in the serum protein profiles between people with successful aging living in Bama versus in Nanning.Most of the proteins are downregulated among people aged over 80 years in Bama.
8.The expression of IgG4 in salivary glands and the clinical analysis of 58 cases of Sj(o)gren's syndrome
Danni HUANG ; Ling LIN ; Xiaoqing CHEN ; Chunlin WU ; Hongying SHI
Chinese Journal of Rheumatology 2012;(12):815-819
Objective Mikulicz's disease (MD) was considered to be a subtype of Sj(o)gren's syndrome (SS) due to the clinical and histological similarities between them.Evidence had shown that there were differences between MD and typical SS.The purpose of this study was to investigate the correlation between MD and SS,by means of analyzing the expression of IgG4 in salivary glands and the clinical characteristics of patients who were previously considered as SS.Methods The paraffin sections of salivary glands from SS patients were stained with monoclonal antibodies to IgG4 and CD38.Patients were divided into two groups based on the pathological results.Analysis of the symptoms,the signs and the laboratory results were carried out in these patients.The difference in laboratory parameters and histopathological gradings in the two groups was analyzed.Normal and abnormal distributed data comparison was conducted using random independent samples t-test and rank sum test respectively.Two-sample rates were compared with Chi-square test.Results Based on immunohistochemistry of IgG4 distribution,the 58 patients with SS were divided into two groups:IgG4 related (9 cases) and non-IgG4 related (49 cases).Histopat-hologically,IgG4 related cases showed IgG4+ plasma cells/IgG+ plasma cells infiltration and there were more IgG4 related monoclonal antibody expressed when compared to IgG4 unrelated cases.In addition,there were also significant differences in clinical features between the two groups.IgG4 related disease was associated with male gender,higher level of plateletconnt,lymphocytes [(2.4±0.8)×109/L vs (1.4±0.7) ×109/L] count and CRP [(52±60) mg/L vs (15±17) mg/L] levels and lower titer of IgM [(1.2±0.7) g/L vs (1.8±0.8) g/L],antinuclear antibody (56% vs 87%) and anti-SSB antibodies (13% vs 54%) (P<0.05),when compared with IgG4-unrelated cases.There was no significant difference in other indicators (P>0.05).Conclusion The present study has demonstrated that some of the MD patients misdiagnosed as SS.Some of the laboratory tests such as the level of platelet and lymphocyte count,serum level of CRP,IgM,antinuclear antibody,anti-SSB antibodies,the serum levels of IgG4 and the histopathological presentations in the salivary gland are different between these two disorders.Because of good response to steroid in MD,so laboratory tests and pathological examinations for IgG4 can help to avoid misdiagnosis.
9.Studies on origin, morphology and histology of Galla Cinnamomi Camphorae specially produced in Jiangxi Province
Cuisheng FAN ; Xiaolan CHU ; Xiaomei FU ; Chunlin YUAN ; Jianrong HUANG ;
Chinese Traditional and Herbal Drugs 1994;0(08):-
Object To study the origin, morphology and histology of Galla Cinnamomi Camphorae(GCC). Methods By the literature investigation and the survey in the production area, GCC was identified by microscopic technique. Results The origin and the medicinal part of GCC were defined. Conclusion GCC is the abnormal fruit of Cinnamomum camphora (L.) Presl which has been infected by Exobasidium sawadae Yamada and formed with hymenium and fruit. The characters in morphology and histology of GCC provide the scientific reference of identification of the crude drug.
10.Effectiveness and safety evaluation of low-dose carbachol application during implantable collamer lens implantation for myopic eyes
Pan, HU ; Ju, HUANG ; Yinjie, ZHAO ; Chunlin, CHEN ; Jian, YE
Chinese Journal of Experimental Ophthalmology 2017;35(3):255-258
Background Carbachol solution (0.01%) is an agonist of M cholinoceptor and skeletal muscle N cholinoceptor,and it is used to play miotic effect and open peripheral iridectomic hole during the surgery of implantable collamer lens (ICL) implantation in order to lower intraocular pressure (IOP).However,the anterior chamber injection of 0.01% carbachol solution often causes relevant complications,while whether lower dose of carbachol solution is effective and safe is unclear.Objective This study was to compare the effectiveness and safety between 0.01% carbachol solution and 0.005% carbachol solution after anterior chamber injection during the ICL implantation.Methods One hundred and fifty-two eyes of 76 cataract patients were included in Daping Hospital of Third Military Medical University from September 2014 to September 2015.ICL implantation and periphery iridectomy were carried out on both eyes of the patients and the 0.01% carbachol solution was injected into the anterior chamber during the surgery of the right eyes and 0.01% carbachol solution was used in the left eyes.The operation duration and IOP at postoperative 2 hours and systemic choline-like reaction were compared between 0.01% carbachol solution group and 0.005% carbachol solution group.Results The mean operation duration was (11.86± 2.39) minutes and (11.22 ± 1.85) minutes in the 0.01% carbachol group and 0.005% carbachol group,without significant difference between two groups (t =1.851,P =0.066).IOP was (15.76 ± 2.18) mmHg and (13.58 ±2.24)mmHg in the 0.01% carbachol group before and after surgery,and those in the 0.005% carbachol group was (15.70±2.35)mmHg and (13.12±2.17)mmHg,there was no significant difference in the IOP between the two concentrations of carbachol (Fsroup =0.986,P=O.322).The IOP at postoperative 2 hours was lower than that before operation,the difference was statistically significant(Ftime =97.339,P =0.000).There was no interaction between drug concentration and time (Fcorrelation =0.772,P =0.381).The incidences of complications,such as dizziness,nausea and vomiting,were lower in the 0.005% carbachol group than those in the 0.01% carbachol group (x2 =13.01,5.16,4.03,all at P<0.05).Conclusions Carbachol solution (0.005%) can play intraoperative miosis effect and maintain effective operation duration in ICL implantation.In addition,the application of 0.005% carbachol solution is quite safe in both intraoperation and postoperation.