1.Investigation on the causes of death and influential factors for the prognosis of 103 cases of strangulating intestinal obstruction
Chinese Journal of Postgraduates of Medicine 2010;33(35):28-29
Objective To investigate the causes of death and influential factors for the prognosis of patients with strangulating intestinal obstruction. Method The clinical data of 103 cases of strangulating intestinal obstruction admitted from August 2001 to November 2009 were analyzed retrospectively. Results All patients were treated by surgery, 55 cases (53.4%) were diagnosed of strangulating intestinal obstruction before surgery, the remaining 48 cases (46.6%) were diagnosed underwent laparotomy. Ninety two cases were cured, 11 cases died,the mortality rate was 10.7%. Major causes of death were septic shock,multiple organ dysfunction syndrome (MODS), acute respiratory distress syndrome (ARDS) and acute renal failure,septic shock was the most important independent factor that affect the prognosis. Conclusion Clear and early diagnosis,rational decision of the timing of surgery,and prompt and effective surgical treatment is the key to reduce mortality in strangulated intestinal obstruction.
2.Blood lead level in painters and the influential factors
Yangfen LI ; Yan WANG ; Chang CAI ; Jimeng LI ; Hongzhuan TAN
Journal of Central South University(Medical Sciences) 2014;(11):1191-1195
Objective: To investigate the blood lead level (BLL) in painters and the inlfuential factors, and to provide the theory foundation for the prevention and control of lead poisoning in painters. Methods: A total of 535 painters from Sany Heavy Industry Company Limited and Xiangjiang Kansai Paint Corporation, who participated in the health examination during October 2012 and December 2012, were recruited and divided into a positive blood lead group and a negative blood lead group according to the level of blood lead. Questionnaires survey and physical/biochemical examinations were performed. Chi-square Test and multivariate logistic regression were used to estimate the factors that contributed to the elevated blood lead. Results: hTe results from 525 questionnaires and physical/ biochemical examination were collected. There were 55 workers (10.4%) whose BLL were 0.04 mg/L. The maximum value of BLLs was 0.35mg/L. hTe multivariate logistic regression showed that smoking (OR=2.424), smoking or eating in the workplace (OR=2.139), not washing hands before smoking or eating (OR=1.624), and the cycle of changing masks longer than two weeks (OR=2.158) were positively associated with BLL. Conclusion: Smoking, smoking or eating in the workplace, not washing hands before smoking or eating, and the cycle of changing masks longer than two weeks are risk factors for higher BLL.
3.Establishment of a novel ring primer real-time PCR for quantification of the mRNA expression levels of HER2 gene
Yi LI ; Guoyan LIU ; Huanjing ZHANG ; Limou ZHENG ; Jimeng ZENG
Chinese Journal of Laboratory Medicine 2012;(11):1000-1005
Objective Based on real-time PCR technique and ring primers,to establish a simple,accurate,cost-effective and easily standardized quantitative assay for quantification of HER2 mRNA,and apply to provide medication guidance for clinical tumor personalized molecular targeted therapy.Methods Screening reference gene which was stable expression in breast cancer,and optimizing the PCR reaction system.Then a real-time PCR with Eva Green for quantification of the mRNA expression levels of HER2 gene was developed.The specificity,sensitivity and reproducibility of the method were evaluated 87 specimens including 55 liquid nitrogen-frozen breast cancer tissues and 32 normal tissues were detected by the real-time quantitative reverse transcription (FQ RT)-PCR and immunohistochemistry(IHC).Results The standard curve of the method indicated a good linear relationship between the Ct value and the template concentration with the correlation coefficient being 0.997.The linear range of the system was from 101 to 106 copies/μl and the lower detection limit was 101 copies/μl.It had a high sensitivity and good specificity.The inter-assay coefficients of variation of HER and RPL37A genes were (5.93 ± 0.57)% and (5.11 ± 0.59)%,(2.49 ±0.81)% and (2.98 ±0.97)% respectively.The intra-assay coefficients of variation were (5.76 ±0.58)%and (7.71 ±0.61)%,(3.75 ±0.76)% and (4.40 ±0.96)% respectively.Using the optimized FQ RTPCR system,HER2 gene of 87 specimens was quantificated.The sensitivity of the assay was 96.36% (53/55),the specificity was 78.13% (25/32),the positive predictive value was 88.33% (53/60),the negative predictive value was 92.59% (25/27),and the total coincidence rate between FQ RT-PCR and IHC was 89.66% (78/87).The correlation of the results between the FQ RT-PCR and IHC was good (Kappa =0.770,P > 0.05).Conclusions The method can quantify the mRNA expression levels of HER2 gene rapidly and cost-effictively with high sensitivity and specificity.It can be applied to clinical molecular diagnosis with attractive prospect.
4.The prospective randomized controlled study of primary pterygium surgery
Feng HUA ; Zhengyi LI ; Jimeng CHEN ; Guoting HOU
Chinese Journal of Primary Medicine and Pharmacy 2015;(22):3392-3394
Objective To study two different methods in treatment of primary pterygium surgery on corneal epithelial wound repair and the influence on the recurrence rate.Methods Used prospective controlled study,accord-ing to a number table 128 patients with 128 eyes were randomly divided into control group (64 cases),and observa-tion group (64 cases).The two groups of patients underwent pterygium excision and limbal stem cell transplantation. The observation group (64 eyes)received 0.2 mg/mL mitomycin C of mitomycin -C(MMC)adjuvant therapy. Corneal epithelial wound repair speed was observed.The patients were followed up for 6 -12 months,average 8.5months,the recurrence rate of pterygium was observed in the two groups.Results The grafts were smooth,and the conjunctival flap healed well in the two groups.The postoperative corneal epithelial healing time of the control group and the observation group were (2.13 ±0.37)d,(2.87 ±0.41)d,there was statistically significant difference (t =4.91,P <0.01);The postoperative recurrence rates were 6.25%,4.69% respectively,there was no statistically sig-nificant difference (χ2 =0.48,P >0.05).Conclusion There was no difference in recurrence rate between two kinds of pterygium surgical method,but the combined MMC can cause corneal epithelial healing delay.
5.Crossˉsectional analysis on relation between smoking and serum uric acid level
Bin TIAN ; Bing ZHANG ; Jimeng LI ; Yuhong GUAN ; Lan WEN
International Journal of Laboratory Medicine 2014;(24):3382-3384
Objective To understand the relation between smoking and serum uric acid level and to investigate whether the ser-um uric acid has the correlation with the gender,age and smoking history.Methods The data of the gender,age,blood uric acid in1 847 individuals aged 20-80 years with the healthy physical examination and without underlying diseases were performed the statisti-cal analysis.Results With male and female as the research objects,the serum uric acid level of smokers were higher than that of non-smokers and occasional smokers,the difference was statistically significant;the serum uric acid level had no statistically signifi-cant difference between smokers and occasional smokers;the serum uric acid level had no statistically significant difference among non-smoking,occasional smoking and smoking groups for males as the research objects alone;to divide the male subjects into groups according to age,the serum uric acid level of non-smokers,occasional smokers and smokers were not statistically significant among all age groups;serum uric acid level showed the increasing trend with the increase of smoking history,but there was no statistically significant difference.Conclusion The serum uric acid level of smokers is significantly higher than that of non-smokers and occa-sional smokers with male and female as the research objects;the difference in serum uric acid level between smokers and occasional smokers has no statistical significance;excluding the gender factor interference,the serum uric acid level of males is not affected by smoking or age;serum uric acid mean value demonstrates the increasing trend with the increase of smoking history.
6.Effect of micro-ecological environment on incidence of allergic rhinitis on mice.
Min WANG ; Yongli SONG ; Jimeng WANG ; Hui YAN ; Wenjuan MI ; Jianhua QIU ; Li QIAO
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(23):1884-1887
OBJECTIVE:
This study was designed to find out the impact of micro-ecological environment on the incidence of allergic rhinitis after developing a model of allergic rhinitis on mice.
METHOD:
Sixty mice were randomly divided into GF group (n=30) and SPF group (n=30). Mice of GF group were fed in the germ-free environment and mice of SPF group were fed in the specific pathogen-free environment. Then each group were randomly divided into model group (20 mice) and control group (10 mice). Establish allergic rhinitis model in the mice of model group using ovalbumin (OVA) at the age of 6 weeks, observe and score the corresponding symptoms and signs that could been induced. Stain with hematoxylin eosin (HE) staining method for nasal mucosa to observe the morphological changes. Using enzyme linked immunosorbent assay to detect the concentration of IgE, IFN-γ and IL-4 in the peripheral blood serum.
RESULT:
The chi square test showed that the incidence of allergic rhinithis in the mice of GF group was significantly higher than that in the SPF group (P< 0. 05). HE staining showed that the nasal mucosas of allergic rhinitis positive reaction mice were highly congestive and edematous and had a large number of inflammatory cell infiltration, while there was no abnormal morphology of nasal mucosas in mice with no allergic rhinitis reaction. EOS counting displayed that the number of eosinophilic cells in nasal mucosa of positive allergic rhinitis reaction mice was increased significantly. The concentration of IgE and IL-4 in the serum of positive allergic rhinitis reaction mice was highly increased (P <0. 05), and IFN-γ was significantly decreased (P< 0.05).
CONCLUSION
The difference of micro-ecological environment may play a key role in the occurrence of allergic rhinitis in mice.
Animals
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Disease Models, Animal
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Environment
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Incidence
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Interleukin-4
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Mice
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Mice, Inbred BALB C
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Nasal Mucosa
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Ovalbumin
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Rhinitis
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Rhinitis, Allergic
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etiology
7.Comparative study of electroacupuncture and moxibustion in influencing Tianshu (ST 25) regions mast cells in visceral hyperalgesia rats
Liu CHEN ; Chuanzi DOU ; Jimeng ZHAO ; Huangan WU ; Yuwei LI ; Haixia SHANG ; Luyi WU ; Yin SHI
Journal of Acupuncture and Tuina Science 2016;14(4):242-249
Objective:To evaluate and compare electroacupunctures (EA) with different parameters and moxibustion at different temperatures influencing the activation of mast cells (MC) in Tianshu (ST 25) regions of visceral hyperalgesia model rats. Methods:Rats (except for model group) respectively accepted 1 mA or 3 mA EA or moxibustion at 43 or 4 to℃℃stimulate Tianshu (ST 25) points after randomization of the fifty visceral hyperalgesia model rats, and then were compared with that in model and normal groups. Number, degranulation numbers, degranulation rates in Tianshu (ST 25) regions MC of rats in each group were observed using toluidine blue staining. Abdominal withdrawl reflex (AWR) score was used to evaluate the rat visceral hyperalgesia reactions. Results:Compared with the normal group and the model group, MC numbers (P<0.05,P<0.01,P<0.01,P<0.01), degranulation numbers and degranulation rates (P<0.01,P<0.01, P<0.05,P<0.01) of Tianshu (ST 25) MC in regions tissues in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups all increased significantly. Compared with the model group, AWR scores were significantly lower in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg colorectal distension (CRD) (P<0.05 in 1 mA and 3 mA EA groups under the stimulation of 20 mmHg,P<0.01 in the other groups). AWR scores in 43℃ and 4℃moxibustion groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg CRD were not significantly different from those in the normal group (allP>0.05); AWR scores in 1 mA EA group under the stimulation of 0 mmHg or 80 mmHg were significantly higher than that in the normal group (P<0.01); AWR score in 3 mA EA group under the stimulation of 0 mmHg was significantly higher than that in the normal group (P<0.01), and AWR scores in 3 mA EA group under the stimulation of 20 mmHg or 80 mmHg were also higher than that in the normal group (P<0.05). AWR scores were higher in 1 mA EA group under the stimulation of 40 mmHg or 80 mmHg than that in 4℃ moxibustion group (P<0.05); AWR score was higher in 3 mA EA group under the stimulation of 40 mmHg than that in 4℃ moxibustion group (P<0.05). Conclusion:There are differences among EA of different parameters and moxibustion of different temperatures in activating on Tianshu (ST 25) regions MC of visceral hyperalgesia model rats, as well as in improving the visceral hyperalgesia reaction. The effect of 4℃ moxibustion is the most significant.
8. The application of ARIMA in forecasting the cases of rabies in China different human groups
Jun HE ; Lei LUO ; Ruogang JIN ; Jimeng LI
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(7):512-515
Objective:
To understand the situation of rabies in China different human groups. Seasonal ARIMA model is established to make forecasts and to provide suggestions for human rabies controlling in China.
Methods:
Build a model with data during 2004-2013, and validate the model by data of 2014. Then predict the cases of rabies from 2015-2017.
Results:
The long term trend is decreasing year by year, while seasonal effect is found that number of the third and fourth quarter are higher than others. The seasonal ARIMA model was built, whose residual are white noise. The RMAE in forecasting of peasants, students and scattered children are 19.10%、49.93% and 68.01%.
Conclusion
The decreasing of rabies cases in China with time shows that the measures for control are effective. October for peasants, September for students, August for scattered children are critical period in future for rabies' control. Seasonal ARIMA model is a feasible model in forecasting the cases of rabies in China different groups in some way, error will be reduced by modeling separately for different wave sequence and combining with other models like ARIMA-GARCH.
9.Effects of acupuncture and moxibustion on chromatin remodeling-related enzymes in the colon tissue of rats with Crohn disease
Yanting LI ; Yajing GUO ; Jimeng ZHAO ; Yi SUN ; Sen GUO ; Yin SHI ; Yanping YANG
Journal of Acupuncture and Tuina Science 2024;22(5):353-362
Objective:To investigate the regulatory effects of acupuncture and moxibustion on chromatin remodeling complex core catalytic subunit of Brahma-related gene 1(Brg1),histone deacetylase(HDAC)3,HDAC9,and males absent on the first(MOF)in the colon tissue of rats with Crohn disease(CD). Methods:Using the random number table method,60 male Sprague-Dawley rats were divided into 5 groups,including a normal group,a model group,an acupuncture group,a medicinal cake-insulated moxibustion group,and an acupuncture-moxibustion group,with 12 rats in each group.CD rat models were prepared using 2,4,6-trinitrobenzene sulfonic acid(TNBS)in all groups except the normal group.The normal and model groups received no interventions.In the acupuncture group,rats were intervened with acupuncture at bilateral Zusanli(ST36)and Shangjuxu(ST37),20 min/session,once a day.The medicinal cake-insulated moxibustion group received medicinal cake-insulated moxibustion at Qihai(CV6)and bilateral Tianshu(ST25)with 2 cones per point per session,once a day.The acupuncture-moxibustion group received both acupuncture and moxibustion interventions simultaneously.Each intervention was performed for 10 consecutive days.Observations included general condition,disease activity,macroscopic damage,and pathological changes in the rat's colon tissue.Real-time fluorescence quantitative polymerase chain reaction was used to measure the mRNA expression of chromatin remodeling-related enzymes Brg1,HDAC3,and HDAC9,while Western blotting detected the protein expression of Brg1,HDAC3,HDAC9,and MOF in rat's colon tissue. Results:The model group showed significantly increased diarrhea score,occult blood score,macroscopic damage score of colon tissue,and colon macroscopic damage index(CMDI)score,as well as elevated mRNA expression levels of HDAC3 and HDAC9,protein expression levels of HDAC3,HDAC9,and MOF,and decreased mRNA and protein expression levels of Brg1 compared to the normal group(P<0.01).In contrast,compared to the model group,the diarrhea score,occult blood score,macroscopic damage score,CMDI score,mRNA expression levels of HDAC3 and HDAC9,and protein expression levels of HDAC3,HDAC9,and MOF were significantly reduced(P<0.05 or P<0.01),while the mRNA and protein expression levels of Brg1 were significantly increased(P<0.01)in the acupuncture group,the medicinal cake-insulated moxibustion group,and the acupuncture-moxibustion group. Conclusion:Both medicinal cake-insulated moxibustion and acupuncture,either used alone or in combination,can regulate the abnormal expression of chromatin remodeling-related enzymes Brg1,HDAC3,HDAC9,and MOF in the colon tissue,thus reducing colon inflammation in CD rats.
10.Effects of sensory and motor nerve homogenates at different concentrations on proliferation and osteogenesis differentiation of bone marrow mesenchymal stem cells
Huijie JIANG ; Junqin LI ; Jimeng WANG ; Donglin LI ; Pengzhen CHENG ; Yi GAO ; Chunmei WANG ; Liu YANG ; Guoxian PEI
Chinese Journal of Orthopaedic Trauma 2017;19(2):151-156
Objective To investigate the effect of sensory and motor nerve homogenates at different concentrations on the proliferation and osteogenesis differentiation of bone marrow mesenchymal stem cells (BMSCs) in rats.Methods The saphenous nerve and the muscle branch of the sciatic nerve in rats were extracted surgically as sensory and motor nerve tissues,respectively.The primary nerve homogenates (10 mg/mL) were prepared as per 10 mg tissue with 1 mL osteoblast inducing conditional media,and 10 times diluted after filtration purification to prepare sensory and motor nerve homogenates at concentration gradients of 1.0,0.1,0.01,0.001 and 0.0001 mg/mL.Cultivation GFP ± rat pups BMSCs in vitro were trained to P3 generation.The experiment was carried out in 3 groups.The sensory and motor nerve homogenates of 500 μL at the above 6 concentration gradients were added during cultivation respectively in the sensory nerve group (n =18) and the motor nerve group(n =18) while 500 μL of osteoblast inducing conditional media was added in the control group(n =3).Cell proliferation quantity detection and alkaline phosphatase (ALP) staining were used to assess the proliferation and differentiation of BMSCs after 14 days.Results According to the results of CCK-8,the cellular absorbance values at concentrations of 1.0 and 0.1 mg/mL homogenate in the sensory nerve group (1.957 ±0.065 and 1.751±0.073) were significantly greater than in the control group (1.145±0.087) while the cellular absorbance value at concentration of 10.0 mg/mL homogenate in the motor nerve group (0.304 ± 0.619) was significandy smaller than in the control group (1.145 ± 0.087) (P < 0.05).According to the ALP staining,the amounts of cellular calcium nodules in the sensory and motor nerve groups (2.667 ± 0.816 and 3.000 ± 0.632,respectively) were significantly smaller than in the control group (11.833 ± 1.471) (P < 0.05).Conclusion Sensory nerve homogenate is different from motor nerve homogenate in that it may promote proliferation of BMSCs and inhibit osteogenesis differentiation of BMSCs in a certain rage of concentrations.