1.Application of satellite ganglion block via posterior edge of sternocleidomastoid approach
Yanqing CHEN ; Ying LIN ; Shuangbo DAI
The Journal of Clinical Anesthesiology 2009;25(12):1055-1056
Objective To observe the outcomes of satellite ganglion block(SGB)via posterior edge of stcmoclcidomastoid approach.Methods SGB was performed in 2 400 patients,who wererandomly divided into two groups with l 200 cases each.The puncture of SGB in group SPA was via posterior edge of sternocleidomastoid approach and that in group TPA via traditional paratracheal approac}L The same local anesthetics was used in two groups.The success rate(Horner'S syndrome appearance)and complications were compared.Results The success rate was higher in group SPA than that in group TPA(97% VS.92%)(P<0.05).Repeated puncture was needed in 16 cases ingroup SPA,which were less than 98 cases in group TPA(P<0.05).Laryngeal nerve block wasoccurred in 24 cases in group SPA.which were less than 37 cases in group TPA(P<0.05).Conclusion Compared to the traditional paratracheal approach,SGB via posterior edge ofsternocleidomastoid approach has the advantages of clear positioning,easy puncture,higher success rate and less complications.
2.aPKC and ERK regulate NRF2-?-GCS in rat lung with chronic obstructive pulmonary disease
Lin CHEN ; Aiguo DAI ; Ruicheng HU
Chinese Journal of Pathophysiology 2000;0(11):-
AIM: To investigate atypical protein kinase C(aPKC), extracellular signal regulated kinnase (ERK) regulating NF-E2-related factor 2 (NRF2)-?-gutamylcysteine synthetase (?-GCS) and the effect on lung of rats with chronic obstructive pulmonary disease (COPD). METHODS: The rat COPD model was established by intratracheal instillation of lipopolysaccharide twice and exposure to cigarette smoke daily. The ?-GCS activity was measured. The expression of ?-GCS mRNA in lung tissue was examined by in situ hybridization (ISH) and reverse transcription-polymerase chain reaction (RT-PCR). The protein expressions of p-aPKC?/?, p-ERK, NRF2 and ?-GCS in lung tissue were detected by immunohistochemistry (IH) and Western blotting, respectively. RESULTS: (1) The ?-GCS activity was higher in COPD group than that in control group. (2) The expression of ?-GCS mRNA in the COPD group was stronger than that in control group. ISH showed that the ?-GCS mRNA was expressed in alveolar epithelium and bronchiolar smooth muscle cell in the COPD group. (3) The protein expressions of p-aPKC, p-ERK, NRF2, ?-GCS were significantly higher than those in control group. IH showed that p-aPKC, p-ERK, NRF2, ?-GCS proteins were expressed in alveolar and bronchiolar epithelium in the COPD group. (4) There was a positive correlation between NRF2 and ?-GCS. ?-GCS mRNA, p-aPKC?/?, p-ERK were also positively correlated with NRF2. CONCLUSION: By upregulating the signal transduction of NRF2-?-GCS, the ERK and aPKC?/? may play an important role in the mechanism of COPD formation.
3.In situ lymphoma.
Ding-bao CHEN ; Lin DAI ; Song-lin LIAO
Chinese Journal of Pathology 2009;38(11):790-792
CD5 Antigens
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metabolism
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Chromosomes, Human, Pair 11
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Chromosomes, Human, Pair 14
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Chromosomes, Human, Pair 18
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Cyclin D1
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metabolism
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Diagnosis, Differential
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Humans
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Ki-67 Antigen
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metabolism
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Lymphoma, B-Cell, Marginal Zone
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genetics
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metabolism
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pathology
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Lymphoma, Follicular
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genetics
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metabolism
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pathology
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radiotherapy
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Lymphoma, Mantle-Cell
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genetics
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metabolism
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pathology
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Proto-Oncogene Proteins c-bcl-2
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metabolism
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Pseudolymphoma
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metabolism
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pathology
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Translocation, Genetic
4.Effect of Kiss-1 gene promoter methylation on its expression in colorectal carcinoma tissue and its clinical significance
Zhihua CHEN ; Suyong LIN ; Shaoqin CHEN ; Qibao DAI ; Hongjing HAN
Journal of Jilin University(Medicine Edition) 2014;(5):1074-1079
Objective To research the effect of the Kiss-1 gene promoter methylation on the Kiss-1 gene expression in colorectal carcinoma tissue,and to analyze the relationship between the Kiss-1 gene methylation and the clinical pathological features of colorectal carcinoma and its clinical significance.Methods The Kiss-1 gene promotor region methylation,Kiss-1 gene mRNA and protein expressions were detected respectively by methylation-specific PCR, Real-time PCR and Western blotting method in 126 cases of colorectal carcinoma tissue and para-cacinoma normal colorectal tissue.Results The positive rate of Kiss-1 gene methylation in colorectal carcinoma tissue (83.33%)was significantly higher than that in normal tissue (30.16%)(P<0.05).In the cancer tissue,the expression levels of Kiss-1 gene mRNA and protein in Kiss-1 gene promoter methylation positive group was lower than that in Kiss-1 gene promoter methylation negative group (P < 0.05 ). The positive rate of Kiss-1 gene promoter methylation in T3+T4 stage group was higher than that in T1+T2 stage group (P<0.05),but the Kiss-1 gene mRNA and protein expression levels were lower than those in T1+T2 stage group (P<0.05).In the poorly and moderately differentiated group,the positive rate of Kiss-1 gene promoter methylation was higher than that in well differentiated group (P<0.05 ), but the mRNA expression level of Kiss-1 gene was lower than that in well differentiated group (P<0.05 ). In lymph node metastasis group, the positive rate of Kiss-1 gene promoter methylation was higher than that in lymph node negative group (P<0.05),but the mRNA and protein expression levels were lower than those in lymph node negative group (P<0.05 ). And the positive rate of Kiss-1 gene promoter methylation in distant metastasis group was higher than that in non-distant metastasis group (P<0.05), but the mRNA and protein expressions levels were lower than those in non-distant metastasis group (P<0.05). There were no significant associations between the positive rate of Kiss-1 gene promoter methylation and the gender, age,tumor location, and tumor diameter of the patients (P>0.05 ). Conclusion The Kiss-1 gene promoter methylation in colorectal carcinoma tissue is associated with the Kiss-1 gene expression level and the malignant characteristics of colorectal carcinoma;Kiss-1 gene promoter methylation may be used as a reference indicator for predicting the risk of metastasis of colorectal carcinoma.
5.Study on current status and influencing factors of anxiety among nurses working in department of infectious diseases
Ru CHEN ; Yanyan CHEN ; Suyan LIN ; Beilei DAI
Chinese Journal of Primary Medicine and Pharmacy 2016;23(7):994-997
Objective To understand the condition of anxiety and analyze the influencing factors related to anxiety among nurses working in department of infectious diseases.Methods 206 nurses from 6 third class hospitals in Wenzhou were selected by simple random sampling method.A survey was carried out by using the socio-demo-graphic information questionnaire,working conditions questionnaire,self-rating anxiety scale and social support rating scale.Results The SAS score among nurses ranged from 36 to 72 points,and the average score was (48.32 ± 12.06)points,which was higher than the norm SAS value(t=14.39,P<0.01).The percentage of anxiety was about 55.33%.The percentage of moderate and severe anxiety was 16.51%.The main factors related to the anxiety among nurses were age(t=11.34,P<0.01),working years(t=5.68,P<0.01),moonlit night shift(t=4.42,P<0.05), worrying about making mistakes(t=7.18,P<0.01),worrying about occupational exposure(t=19.93,P<0.01) and nursing management of much criticism(t=5.68,P<0.01).Conclusion The condition of anxiety was serious among nurses working in department of infectious diseases.Interventions should be taken to reduce the anxiety level among nurses.
6.Measurement and calculation of X-ray small fields' data for Varian accelerator
Xuetao WANG ; Shaowen CHEN ; Zhenhui DAI ; Lin ZHU ; Xiaowei LIU
Chinese Journal of Radiation Oncology 2012;(6):557-559
Objective The beam data is compared with those obtained from Monte Carlo (MC)simulation and measurement to investigate their feasibility and reliability for X-ray small fields.MethodsThe beam data,including the total scatter factor (Scp),percentage depth dose (PDD) was acquired byneasurement and calculation with the field size ranging from 0.5 cm × 0.5 cm to 10 cm x 10 cm.The resultswere compared and analyzed.Results All the data is most consistent for the fields size of ≥3.5 cmx 3.5cm,but they are obvious different for the fields size of ≤ 3.0 cm × 3.0 cm.The measurements seem toreliable using the chambers of CC04 and CC13 for the fields size of ≥2.0 cm x 2.0 cm.Conclusions It isdemonstrated that the accurate measurements and calculations of Scp and PDD can be obtained for the fieldssize of ≥2.0 cm ×2.0 cm,but they needed morc rcscarchcs for thc smaller fields.
7.Clinical features of elderly patients with severe acute pancreatitis with misdiagnosis as having paralytic ileus
Heping CHEN ; Shaoya HE ; Xiaosong DAI ; Lin BAI ; Shengxi HAN
Chinese Journal of Pancreatology 2009;9(1):31-33
Objective The clinical features of elderly patients with severe acute pancreatitis (SAP) were atypical and these patients were often misdiagnosed as having paralytic ileus. The clinical presentations of elderly patients with SAP whose first diagnosis as paralytic ileus were analyzed. Methods 18 patients of elderly SAP who were misdiagnosed as having paralytic ileus were included and the clinical data were compared with 58 elderly patients with SAP. Results Among the misdiagnosis group, the first symptom onset were fleus, abdominal distension, vomiting, constipation, abdominal pain, diarrhea for 5, 4, 3, 3, 2, 1 case, respectively. Among SAP group, the first symptoms onset were 2, 31, 9, 3, 11, 2 cases, respectively. For misdiagnosis group, 13 cases were correctly diagnosed by CT scan, 3 cases by ultrasound and 2 cases by serum amylase test. For SAP group, 32, 15, 11 cases were diagnosed by CT scan, ultrasound and serum amylase, respectively (P < 0.05). 4 and 13 patients died in misdiagnosis and SAP group, respectively; among these 13 patients, 10 were female and 3 were male. Conclusions The elderly patients with paralytic ileus should consider the possibility of SAP, and CT scan was valuable for correct diagnosis.
8.The preliminary research on the characteristics of the cognitive function and the mechanism in frontal bottom laceration patients
Weichuan DAI ; Junyan CHEN ; Hongzhi GAO ; Peixuan ZHOU ; Zeya LIN
Chinese Journal of Neurology 2010;43(5):345-350
Objective To investigate the possible pathogenesis of the cognitive function in unilateral frontal bottom laceration by follow-up study in patients after one month of the onset. Methods MMSE, Loewenstein Occupational Therapy Cognitive Assessment (LOTCA), Montreal Cognitive Assessment (MoCA), Wisconsin Card Sorting Test (WCST) scales were used to evaluate neurocognitie function in 42 patients after one month of onset of unilateral frontal bottom laceration and 45 normal controls. The wave amplitude and the latency of the endogenous composition N2, P3 of P300 were measured at the cognitive potential instrument. Level of AChE was determined by ELISA and active AChE was analyzed by the ration analyses. Stepwise multivariate regression analyzed the correlation of the overall cognitive function and the lever and active of AChE. Results The cognitive test scores in patients were significantly worse than those in normal controls. The ability of recite sentences, fluency of words, reading, understanding language,cognitive transfering decreases in the left frontal bottom laceration patients (Group A, 23 cases), while the ability of attention, action, organization, graphics depicting, abstract epitoming, logical thinking were all seriously impaired in the patients with right frontal bottom laceration (Group B, 19 cases). The latency of the endogenous composition N2, P3 in patients ( Group A: (322. 4 ± 17.0), (410. 1 ± 19.9) ms; Group B:( 308.4 ± 15.6), (385.5 ± 17.4) ms) is more lengthen ( F = 4. 084, P = 0. 018; F = 3.467, P = 0. 038 )than the normal controls ( (268.6 ± 14. 7 ), ( 369. 2 ± 15. 4 ) ms) and the wave amplitude is lower ( F =2. 986 ,P =0. 047 ;F =3. 313 ,P =0. 041 ). The latency of N2 ,P3 in Group A of is more lengthen than Group B, while the wave amplitude is higher. The difference of the active of AChE in patients and control groups had no statistical significance, however, the level of AChE in two groups had statistical significance. The comparison of the active and the total AChE in patients has also not statistical significance. The correlation of the overall cognitive function has the linear regression with the parts of the brain and the level of AChE ( rY1.2 = 0. 584, P = 0. 039; rY2.1 = 0. 726, P = 0. 017 ). The standardized regression coefficients showed the level of AChE has the biggest influence to the overall cognitive function ( |Beta| =0. 3601, rY2.1 =0. 726).Conclusions AChE may be one of the important factors in the cognitive function after frontal bottom laceration. The specific damages of cognitive function in unilateral frontal bottom laceration patients closely relate with the lesion locations in the injured frontal bottom laceration.
9.Influence of beta nerve growth factor in vibrissa follicle bulge region on the burn wound healing of neonatal rats
Jun ZENG ; Dengbang CHEN ; Lüxia DAI ; Sen LIN
Chinese Journal of Tissue Engineering Research 2010;14(11):1987-1991
BACKGROUND:The surroundings stimulation,such as wound and chemical injury,will result in changes of hair follicle stem cells(HFSC).Up to date,few articles indicate the effecl of burn on HFSCs.OBJECTIVE:To investigate the changes of β-nerve growth factor(β-NGF)level in vibrissa follicle bulge region and its effect on the healing of neonatal rats.METHODS:A total of 30 neonatal rats were selected to prepare burn models by giving 90℃ boiled tap water for 3 seconds,and vibrissa follicle bulge was separated at 12,24,36,48 and 60 hours pOsloperatiVeIy.The remained 6 neonatal rats were served as controls.Total protein concentration was measured by Brandford method The expression of β-NGF was detected by ELISA.Meanwhile the tissues in each time points were collected for frozen section and immunohistochemistry.RESULTS AND CONCLUSION:Among the tested total protein.the expression of the β-NGF increased after 36 hours.reached a peak at 60 hours after burn.The identical changes were found in tissue slices.The image analysis demonstrated that the β-NGF protein detection was coincident with β-NGF expression in tissues During 12 hours to 60 hours after burn,the expression of the β-NGF in the bulge area peaked at 60 hours;simultaneously,the repairing effect of healing also reached a peak.Bulge area is a nest of HFSC,the enhanced expression of β-NGF may have some positive significance to the differentiation of the HFSC and tissue repair.
10.Histopathological study on Mooren’s ulcer
Changlin ZHAO ; Hanping XIE ; Dailun CHEN
Journal of Third Military Medical University 2003;0(23):-
Objective To observe the histopathologic and ultrastructural characteristics of cornea and adjacent conjunctiva in Mooren’s ulcer. Methods The samples of limbal and central cornea and adjacent bulbar conjunctiva taken from active Mooren’s ulcer after lamellar keratoplasty were cut into paraffin sections and ultrathin sections and observed by light and transmission electron microscopy. The samples taken from patients of a Terrien’s marginal degeneration and a bacterial corneal ulcer were used as controls. Results Chronic inflammation including lymphocytes and plasma cells infiltrating existed in bulbar conjunctiva and sclera of Mooren’s ulcer. Limbal corneal epithelium, Bowman’s membrane, anterior stroma and adjacent superficial sclera melted and the inferior stromal collagen disorganized. The epithelial basement membrane of ulcer progressive edge had been destroyed while the epithelium and stroma kept quiescent. Lymphocytes infiltrated in conjunctiva and corneal epithelium of Terrien’s marginal degeneration with normal epithelial basement membrane, while Bowman’s membrane was destroyed. The epithelial basement membrane of bacterial corneal ulcer was intact. Conclusion Bulbar conjunctiva may act as a local lymph node of Mooren’s ulcer. Epithelial basement membrane of Mooren’s ulcer may have some abnormality as it was invaded first during ulcer progressing and it’s valuable to have a further study.