Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 54
Filter
1.
Article in Chinese | WPRIM | ID: wpr-933342

ABSTRACT

Objective:To evaluate the role of brain-derived neurotrophic factor-antisense long-chain non-coding RNA (BDNF-AS) in amygdala in the development of neuropathic pain (NP) in rats.Methods:Healthy clean-grade male Sprague-Dawley rats, aged 2 months, weighing 200-260 g, were used to develop NP model via ligation of left L 5-6 spinal nerve, while control group was only subjected to the exposure of L 5-6 spinal nerve without ligation.This study was performed in two parts.Experiment Ⅰ Fifty-six rats were divided into 3 groups by the random number table method: sham operation group (Sham group, n=8), NP group ( n=24) and BDNF ( n=24). In BDNF group, exogenous BDNF was injected into bilateral amygdala at 1, 3, 6, 13 and 20 days after development of the model, with 100 pmol at each side.Eight rats were sacrificed at 7, 14 and 21 days after the model was developed in NP and BDNF groups and after the model was developed in Sham group, the brains were removed, and the amygdala was isolated for determination of the BDNF content (by enzyme-linked immunosorbent assay), the number of BDNF-positive cells (by immunohistochemistry), and expression of BDNF-AS (by real-time quantitative polymerase chain reaction). Experiment Ⅱ Thirty-two rats were divided into 4 groups ( n=8 each) using the random number table method: Sham operation group, NP group, BDNF group and siRNA group.At 1, 3, 6, 13 and 20 days after development of the model, exogenous BDNF 100 pmol and siRNA-BDNF-AS 50 nmol were injected into the amygdala at each side in BDNF group and siRNA group, respectively.The mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured before development of the model (T 0) and at 4, 7, 14 and 21 days after development of the model (T 1-4). After the last behavioral test was completed, the rats were sacrificed, and the spinal cord tissues were collected to measure the contents of interleukin (IL)-1β, IL-6 and tumor necrosis factor-α (TNF-α). Results:Experiment Ⅰ Compared with Sham group, the content of BDNF and the number of BDNF positive cells were significantly decreased, and the expression of BDNF-AS was up-regulated at each time point after development of the model in group NP ( P<0.05). Compared with NP group, the content of BDNF and the number of BDNF positive cells were significantly increased, and the expression of BDNF-AS was down-regulated at each time point after development of the model in group NP ( P<0.05). Experiment Ⅱ Compared with Sham group, MWT was significantly decreased and TWL was shortened at T 1-4, and the contents of IL-1β, IL-6 and TNF-α were increased in NP, BDNF and siRNA groups ( P<0.05). Compared with NP group, MWT was significantly increased and TWL was prolonged at T 1-4, and the contents of IL-1β, IL-6 and TNF-α were decreased in BDNF and siRNA groups ( P<0.05). Conclusions:The mechanism underlying the development of NP may be related to the up-regulation of BDNF-AS expression in amygdala, inhibition of BDNF synthesis and promotion of inflammatory responses in the spinal cord of rats.

2.
Cancer Research and Clinic ; (6): 419-422, 2021.
Article in Chinese | WPRIM | ID: wpr-912899

ABSTRACT

Objective:To investigate the short-term efficacy and safety of albumin-bound paclitaxel combined with nedaplatin followed by concurrent radiotherapy in treatment of stage Ⅲ massive cervical cancer.Methods:The clinical data of 84 patients with massive cervical cancer admitted to Harbin Medical University Cancer Hospital from April 2019 to April 2020 were retrospectively analyzed. According to the different treatment regimens, patients were divided into the observation group and the control group, each with 42 cases. The observation group received albumin-bound paclitaxel combined with nedaplatin followed by concurrent radiotherapy, and the control group received solvent-based paclitaxel combined with nedaplatin followed by concurrent radiotherapy. The short-term efficacy and adverse reactions of the two groups were compared.Results:The partial remission (PR) rate of the observation group and the control group at 1 month of treatment was 92.9% (39/42) and 35.7% (15/42), respectively, and the difference was statistically significant ( χ2 = 29.867, P < 0.01). The complete remission (CR) rate of the observation group and the control group at 1 month after treatment was 59.5% (25/42) and 38.1% (16/42), respectively, and the difference was statistically significant ( χ2 = 3.859, P = 0.049). The incidence of diarrhea of the observation group was lower than that of the control group [33.33% (14/42) vs. 54.8% (23/42)], and the difference was statistically significant ( χ2 = 3.913, P = 0.048). There were no statistical differences in the incidence of hematological adverse reactions and abnormal liver and kidney functions between the two groups (all P > 0.05). Conclusion:The albumin-bound paclitaxel combined with nedaplatin followed by concurrent radiotherapy have a good short-term efficacy in treatment of stage Ⅲ massive cervical cancer, and the adverse reactions are tolerable.

3.
Article in Chinese | WPRIM | ID: wpr-904335

ABSTRACT

@#The aim of this study was to investigate the effect of transmembrane 9 superfamily protein member 2 (TM9SF2) in proliferation and migration of triple negative breast cancer cell line MDA-MB-231.The expression of TM9SF2 in triple negative breast cancer cell line MDA-MB-231 and nontumorigenic mammary epithelial cell line MCF-10A were measured by Western blot. MDA-MB-231 cells were treated with siRNA-TM9SF2 to knock-down the expression of TM9SF2. The effect of silencing TM9SF2 was measured with Western blot.The proliferation of cells was tested by MTS,and the migration was measured with Transwell and wound-healing assay.Proteins related to proliferation (PI3K,AKT,SRC and ERK) and migration (Snail,Slug and N-cadherin) were measured with Western blot.Protein expressions of TM9SF2 was better improved in triple negative breast cancer MDA-MB-231 cell line than MCF-10A.Compared with the control group, the siRNA-TM9SF2 infected group had lower expressions of PI3K, Snail, Slug and N-cadherin, and at the same time phosphorylation of AKT was decreased. The results suggest TM9SF2 can promote the proliferation and metastasis of triple negative breast cancer MDA-MB-231 cell line.

4.
Article in Chinese | WPRIM | ID: wpr-886100

ABSTRACT

Objective To investigate epidemic characteristics of overweight, obesity and obesity-related diabetes in adults in Shenyang, and to explore the influence of overweight and obesity on diabetes. Methods Questionnaire survey combined with physical examination and laboratory examination was adopted to finally collect valid data of 5,239 people underwent physical examination in the hospital from January 2018 to December 2019. Height, weight and blood glucose levels were measured and body mass index (BMI) was calculated. The overweight and obesity status of adults with different characteristics, gender and age were compared, and the prevalence of diabetes among people with different BMI in Shenyang was recorded.Multivariate Logistic regression was used to analyze the influencing factors of overweight and obesity in adults. Logistic regression with complex sample data was used to analyze the risk of diabetes among overweight and obesity adults in different BMI subgroups, and the odds ratio (OR) value was calculated.Results The overall overweight and obesity rates in Shenyang were 42.05% and 21.80% respectively. Gender, region, occupation, smoking, alcohol consumption, eating habits and daily sleep time were associated with overweight (χ2= 437.299, χ2=399.536, χ2=447.144, χ2=77.529, χ2=38.984, χ2=297.900, χ2=1188.323, P2=225.169, χ2=47.296, χ2=241.920, χ2=129.770, χ2=23.197, χ2=98.14, χ2=146.05, P2, or ≥28.0 kg/m2 were higher than those with BMI of 18.5~23.9 kg/m2, (Male: OR=2.034, OR=2.365, P<0.05;Female: OR=1.658, OR=1.763, P<0.05;Overall: OR=1.763, OR=1.811, P<0.05). Conclusion The overweight and obesity rates of adults in Shenyang are relatively high, and the risk of diabetes increases with the increase of BMI, so the related health education and intervention are of vital importance in weight-control and diabetes prevention.

5.
Article in Chinese | WPRIM | ID: wpr-868574

ABSTRACT

Objective To investigate localized regional recurrence after chemotherapy and chest radiotherapy in limited stage small cell lung cancer (LS-SCLC),and explore the relationship between recurrence location and radiotherapy and chemotherapy and its influencing factors.Methods From 2006 to 2014,pathological LS-SCLC treated in CAMS,125 patients had local recurrence,Kaplan-Meier statistical method was used to analyze the survival rate and PFS of each recurrence site.Log-rank was used to compare the survival rate of each group.Univariate analysis includes Chi-squareand t-test for the factors for the recurrence site.Multivariate analysis using Logistic regression.Results The 1-,2-and 5-year overall survival rates were 92.0%,46.4% and 14.7%,respectively.The median progression time was 12.96 months,The median survival time after progression was 1 1.5 months,and the 1-,2-,and 5-year overall survival rates were 45.0%,23.0%,and 10.0%,respectively.The recurrence sites include intrapulmonary recurrence (67 patients),regional lymph nodes (21 patients),simultaneous intrapulmonary and regional lymph nodes (28 patients),and contralateral or supraclavicular lymph nodes (9 patients).The median survival time were 23.96 months,24.76 months,23.23 months,and 18.66 months,and the 2-year survival rates were 49%,52%,46%,and1 1%,respectively (P=0.000,0.004,0.008).In 6 patients (4.0%),5 patients were located in the supraclavicular region,and 1 patient (0.8%) in the field.Conclusions For LS-SCLC undergoing IMRT and chemotherapy,the local failure location is mainly located in the pulmonary,and further treatment of the split dose and targets requires further clinical exploration.

6.
Article in Chinese | WPRIM | ID: wpr-864701

ABSTRACT

Objective:To validate the effectiveness of the "ventilator-associated pneumonia (VAP) cluster nursing package" in Tianjin.Methods:A self-test questionnaire was prepared based on the "Ventilator-associated pneumonitis bundled nursing package", and an electronic questionnaire was used to investigate the comprehensive ICU of 40 hospitals in Tianjin.Results:The average self-examination form of the comprehensive ICU "ventilator-associated pneumonia cluster nursing package" in Tianjin was 28.92 points (out of 30 points), of which the bedside elevation, sedation and wake up, timely extubation, strict hand hygiene, and maintenance Effective airbag pressure, timely dumping of condensate water, timely removal of stagnation, and prevention of the total score of VAP package execution were related to the occurrence of VAP in patients in Tianjin from August 2018 to August 2019 ( r value was 0.101, P <0.01); ICU unit layout, nurse level and prevention of VAP package implementation are the influencing factors of VAP in ICU patients. Conclusion:The "ventilator-associated pneumonitis cluster nursing package" has been well implemented in Tianjin ICU, and the implementation of this package can reduce the incidence of VAP.

7.
Article in Chinese | WPRIM | ID: wpr-862533

ABSTRACT

Objective To understand the prevalence of thyroid nodules in the physical examination population in Shenyang, and analyze its related risk factors. Methods Between January 2015 and May 2019, 920 people who underwent thyroid ultrasound examination in the medical examination center of our hospital were enrolled, and their clinical data were collected. The prevalence of thyroid nodules and the related risk factors influencing the disease were statistically analyzed. Results The prevalence of thyroid nodules in the 920 people who underwent physical examination was 44.02% (405/920), including 38.13% (212/556) in males and 53.02% (193/364) in females, with the prevalence rate gradually increasing with age (P<0.05). Multivariate logistic regression analysis showed that female, old age, obesity, permanent residence in rural areas, high TG, high FPG, and combined metabolic syndrome were high risk factors for thyroid nodules (P<0.05). Conclusion The prevalence of thyroid nodules in the physical examination population in Shenyang was relatively high, which was related to age, gender, BMI, residence, and glucose and lipid metabolism. It is necessary to strengthen prevention and publicity and disease screening for high-risk groups to improve the prevention and treatment of thyroid nodules.

8.
Article in Chinese | WPRIM | ID: wpr-872376

ABSTRACT

Objective:To learn the application of nosocomial infection prevention and control measures as stipulated in COVID-19 emergency plans by medical institutions at all levels in the region, for the purpose of strengthening epidemic prevention and control.Methods:During March 12-13, 2020, customized questionnaires were used to learn from 186 hospitals and medical institutions regarding the basics of their nosocomial prevention management departments, emergency plan application and revisions made. Comparison of the ratios or constituent ratios were tested with χ2 test, while the continuous variables analysis between groups was verified with one-way ANOVA. Results:77.53% of the medical institutions had set up independent nosocomial infection management departments, and 87.30% of the institutions were qualified. 80% of the medical institutions had in place emergency plans for respiratory infectious diseases, but 98.05% of them had revised their plans during the pandemic, with an average of 10.85 newly added and revised provisions. Only 30.11% of emergency planed provide for clearly graded early warning.Conclusions:Efforts should be upgraded to develop an emergency prevention and control system for infection prevention and control in epidemics, and improve technical support for infection prevention and control in the system; to strengthen the clearly-graded early warning and graded responses in a scientific manner; and conduct regular drills, revise plan to ensure its applicability.

9.
Acta Pharmaceutica Sinica B ; (6): 498-511, 2020.
Article in English | WPRIM | ID: wpr-792993

ABSTRACT

Ricin is a highly toxic type 2 ribosome-inactivating protein (RIP) which is extracted from the seeds of castor beans. Ricin is considered a potential bioterror agent and no effective antidote for ricin exists so far. In this study, by structural modification of a retrograde transport blocker Retro-2, a series of novel compounds were obtained. The primary screen revealed that compound has an improved anti-ricin activity compare to positive control. pre-exposure evaluation in Madin-Darby Canine Kidney (MDCK) cells demonstrated that is a powerful anti-ricin compound with an EC of 41.05 nmol/L against one LC (lethal concentration, 5.56 ng/mL) of ricin. Further studies surprisingly indicated that confers post-exposure activity against ricin intoxication. An study showed that 1 h post-exposure administration of can improve the survival rate as well as delay the death of ricin-intoxicated mice. A drug combination of with monoclonal antibody mAb4C13 rescued mice from one LD (lethal dose) ricin challenge and the survival rate of tested animals is 100%. These results represent, for the first time, indication that small molecule retrograde transport blocker confers both and post-exposure protection against ricin and therefore provides a promising candidate for the development of anti-ricin medicines.

10.
Chinese Journal of Anesthesiology ; (12): 1002-1005, 2020.
Article in Chinese | WPRIM | ID: wpr-869987

ABSTRACT

Objective:To evaluate the efficacy of ultrasound-guided sacral canal block for anesthesia in neonatal anoplasty.Methods:Sixty neonats with anal atresia, of American Society of Anesthesiology physical status ⅠorⅡ, were divided into 2 groups ( n=30 each) by a random number table method: traditional positioning method for sacral canal block group (group T) and ultrasound-guided sacral canal block group (group U). After successful puncture, 0.2% ropivacaine 1 ml/kg was injected in both groups.The success of puncture at first attempt, puncture time, successful sacral canal block and occurrence of adverse reactions were recorded. Results:Compared with group T, the success rate of puncture at first attempt was significantly increased, the puncture time was shortened ( P<0.05), and no significant change was found in the success rate of sacral canal block in group U ( P>0.05). Neonatal sacrococcygeal contents and the termination of the neonatal dural sac were observed under ultrasound in group U. Blood return in the puncture needle was observed in one case in group T, and no adverse reactions were found in group U. Conclusion:Ultrasound-guided sacral canal block provides better efficacy than the traditional sacral canal block when used for anesthesia in neonatal anoplasty.

11.
Article in Chinese | WPRIM | ID: wpr-869901

ABSTRACT

Objective:To evaluate the role of microRNA-21 (miR-21) in sepsis-induced lung injury and the relationship with transient receptor potential melastatin 2 (TRPM2) expression in rats.Methods:Forty-eight clean-grade Wistar rats, half male and half female, weighing 250-300 g, were divided into 4 groups ( n=12 each) by a random number table method: sham operation group (SH group), sepsis group (S group), miR-21 inhibitor group (group MI), and miR-21 inhibitor plus TRPM2 blocker Gd3 + group.Sepsis was induced by cecal ligation and puncture (CLP) in anesthetized rats.In MI group and MIG group, miR-21 inhibitor and miR-21 inhibitor plus TRPM2 blocker Gd3 + were injected through the tail vein, respectively, at 12 h before CLP.Carotid artery blood samples were collected at 24 h after CLP for blood gas analysis, PaO 2 was recorded, and oxygenation index was calculated.Animals were sacrificed, and lung tissues were removed for microscopic examination of the pathological changes which were scored and for determination of wet to dry weight ratio (W/D ratio), expression of miR-21 and TRPM2 mRNA (quantitative real-time polymerase chain reaction), levels of malondialdehyde (MDA) and superoxide dismutase (SOD) (by spectrophotometer colorimetry) and levels of interleukin-6 (IL-6), IL-8 and tumor necrosis factor-alpha (TNF-α) in serum (by enzyme-linked immunosorbent assay). Results:Compared with group SH, the oxygenation index and SOD activity were significantly decreased, and W/D ratio, lung injury score, MDA content, serum IL-6, IL-8 and TNF-α concentrations were increased in the other three groups, and the expression of miR-21 mRNA was up-regulated, and the expression of TRPM2 mRNA was down-regulated in group S ( P<0.05). Compared with group S, the oxygenation index, SOD activity and serum IL-6, IL-8 and TNF-α concentrations were significantly increased, and W/D ratio, lung injury score and MDA content were decreased in group MI, and the expression of miR-21 mRNA was down-regulated, and the expression of TRPM2 mRNA was up-regulated in MI and MIG groups ( P<0.05). Compared with group MI, the oxygenation index and SOD activity were significantly decreased, W/D ratio, lung injury score, MDA content, serum IL-6, IL-8 and TNF-α concentrations were increased, and the expression of TRPM2 mRNA was down-regulated in group MIG ( P<0.05). Conclusion:Up-regulated expression of miR-21 and down-regulated expression of TRPM2 are involved in the process of sepsis-induced lung injury in rats.

12.
Chinese Journal of Biotechnology ; (12): 142-149, 2019.
Article in Chinese | WPRIM | ID: wpr-771392

ABSTRACT

Tet2 (member 2 of the Tet family) plays an important role in DNA demethylation modification, epigenetic regulation, and hematopoiesis. In our previous study, we found that Tet2 knockout mice progressively developed lymphocytic leukemia and myeloid leukemia with aging. However,the role of Tet2 in bone marrow microenvironment is unclear. Here in this study, we found that more Tet2-/- mesenchymal stem cells (MSCs) from bone marrow were in the G2/M cell cycle stages. The division time of Tet2-/- MSCs was shorter than that of the control cells. The growth rate of Tet2-/- MSCs was accelerated. The cobblestone area-forming cells assay (CAFC) showed that Tet2 knockout MSCs supported the expansion of hematopoietic stem cells (HSCs) and the differentiation of HSCs was skewed towards myeloid cells. Through the dot blotting experiment, we found that the total methylation level was increased in Tet2-/- bone marrow cells (BM). We used the methylation-chip to analyze the methylation level of Tet2-/- bone marrow cells and found that the level of methylation was increased in the transcriptional starting area (TSS), exons (EXONS) and 3' untranslated region (3' UTR). Moreover, we found that the cytokines secreted by Tet2-/- MSCs, such as IL-8 and IL-18, were decreased. While the expressions of GM-CSF and CCL-3, which supported hematopoietic stem cells to differentiate to myeloid cells, were increased in Tet2-/- MSCs. Our results demonstrated that Tet2 regulates MSCs to support hematopoiesis.


Subject(s)
Animals , Bone Marrow Cells , Cell Differentiation , DNA-Binding Proteins , Epigenesis, Genetic , Hematopoiesis , Hematopoietic Stem Cells , Mesenchymal Stem Cells , Mice , Proto-Oncogene Proteins
13.
Article in Chinese | WPRIM | ID: wpr-775787

ABSTRACT

OBJECTIVE@#To analyze the blood type of a family with B(A) blood type.@*METHODS@#The serological blood type of the family was determined by routine tube method. Exons 6 and 7 of the ABO gene were amplified by PCR and subjected to Sanger sequencing.@*RESULTS@#Serological testing of the proband and her elder son showed a discrepancy which was initially identified as B(A) subtype. Her husband and second son were identified as blood type O. Sequencing of the proband and her elder son has identified an O allele and a 640A>G mutation compared with the B gene. Her husband and second son possessed the same genotype of O/O.@*CONCLUSION@#The 640A>G mutation of ABO gene probably underlies the B(A) subtype.


Subject(s)
ABO Blood-Group System , Alleles , Exons , Female , Genotype , Humans , Phenotype
14.
Article in Chinese | WPRIM | ID: wpr-804716

ABSTRACT

Objective@#To study the hepatitis E virus(HEV) infection in pregnant women and the healthy blood donors in Jinan.@*Methods@#A total of 651 blood samples from pregnant women who came for screening of hemolytic disease of newborn and 600 blood samples from blood donors were collected during June 2015 to October 2016. All the blood samples were tested for anti-HEV IgG and anti-HEV IgM antibodies by using enzyme-linked immunosorbent assay (ELISA).@*Results@#Anti-HEV IgG was positive in 2.61% (17/651) of the blood samples from the pregnant women, and none of the samples were positive for anti-HEV IgM. The serum positive rates for anti-HEV IgG and IgM in blood donors were 16.33% (98/600) and 0.83% (5/600) respectively. The seroprevalence of the two groups was significantly different(χ2=70.43, P<0.0001).@*Conclusions@#The HEV infection rate in pregnant women was much lower compared with that in blood donors in Jinan; however, in view of the high mortality of HEV infection in pregnant women, it still cannot be neglected. The infection of HEV in blood donors of Jinan was confirmed, suggesting the potential risk of transfusion-transmitted HEV infection.

15.
Article in Chinese | WPRIM | ID: wpr-708177

ABSTRACT

Objective To investigate the clinical efficacy and prognosis of intensity-modulated radiotherapy(IMRT)combined with chemotherapy for limited-stage small cell lung cancer(LS-SCLC). Methods A retrospective analysis was performed on the clinical data of 484 LS-SCLC patients treated with chemoradiotherapy in our center from 2006 to 2014. The patients with partial or complete response to IMRT received prophylactic cranial irradiation(PCI). The Kaplan?Meier method was used to calculate survival rates, and the log-rank test and Cox regression were used for univariate and multivariate analyses, respectively. Results In all the patients, the follow-up rate was 93%;the median overall survival(OS) time was 23.8 months;the 2-,3-,and 5-year OS rates were 48.7%,39.8%,and 28.6%,respectively;the median progression-free survival(PFS)time was 14.1 months;the 2-, 3-, and 5-year PFS rates were 34.4%,30.5%, and 28.3%, respectively. The incidence rates of grade ≥3 bone marrow suppression, grade ≥2 radiation esophagitis, and grade ≥2 radiation pneumonitis were 26.9%, 24.8%, and 18.4%, respectively, in SCLC patients after IMRT. The objective response rate was 84.5%. The univariate analysis showed that age, smoking history, TNM stage, PCI, and the number of chemotherapy cycles before radiotherapy were prognostic factors for OS(P= 0.006, 0.001, 0.047, 0.000, and 0.046). The multivariate analysis showed that smoking history and PCI were independent prognostic factors(P=0.001 and 0.000).Conclusions IMRT combined with chemotherapy achieves satisfactory clinical outcomes in the treatment of LS-SCLC. Smoking history and PCI are independent prognostic factors for OS of LS-SCLC patients.

16.
Article in Chinese | WPRIM | ID: wpr-697076

ABSTRACT

Objective To measure endotracheal cuff pressure in different positions for mechanically ventilated patients, to provide clinical evidence in choosing suitable body position and measuring time. Methods A total of 40 orally intubated and sedated patients were positioned in a neutral starting position (30°of semirecumbent position)with cuff pressure at 25 cmH2O(1 cmH2O=0.098 kPa),then 6 changes in position were performed:45°of semirecumbent position,and left and right lateral positioning over 30°and 45°, horizontal position. Once a patient was correctly positioned, cuff pressure was measured and recorded. Results The cuff pressure of different position were 30°of semi recumbent position (25 cmH2O, 45°of semi recumbent position (28.55 ± 5.41) cmH2O, 30°of left lateral position (31.43±7.42)cmH2O,45°of left lateral position(32.20±6.85)cmH2O,30°of right lateral position(29.43± 5.84)cmH2O,45°of right lateral position(29.20±6.42)cmH2O,horizontal position(27.15±4.05)cmH2O. The cuff pressure of semi recumbent position at 30°and horizontal position was no statistical significance in the difference (t=-1.70, P=0.09), but horizontal position had 8 patients' cuff pressure more than 30 cmH2O. The cuff pressure of semi recumbent position at 30°was significantly lower than those of semi recumbent position at 45°,left and right lateral position(t=-5.71-3.33,P<0.01).When the cuff pressure of 30°of semi recumbent position was 25 cmH2O, the other body positions had some patients' cuff pressure more than 30 cmH2O. Conclusions Changing body position can affect the endotracheal tube cuff pressure,suggesting that endotracheal tube cuff pressure should be measured after changing patient's position and adjusted within the recommended range.

17.
Chinese Journal of Pathology ; (12): 432-437, 2018.
Article in Chinese | WPRIM | ID: wpr-810019

ABSTRACT

Objective@#To study the histological subtyping of poorly differentiated solid lung cancer by using immunohistochemistry and mucin staining along with analysis of epidermal growth factor receptor (EGFR) mutation and anaplastic lymphoma kinase (ALK) gene rearrangement.@*Methods@#Among 827 cases of non-small cell lung cancer at Beijing Hospital from April 2014 to April 2017, 167 cases of solid poorly differentiated lung cancer were identified and histopathologically subtyped by mucin staining (D-PAS) and immunohistochemistry using 10 antibodies (CK7, vimentin, Ki-67, CK5/6, p40, TTF1, Napsin A, CD56, chromogranin A, and synaptophysin). Paraffin embedded tumor samples were subjected to mutation analysis of exons 18, 19, 20 and 21 of the EGFR gene by amplification refractory mutation system (ARMS) method. Immunohistochemistry (Ventana D5F3) for ALK gene rearrangement was performed followed by ALK fluorescence in situ hybridization (FISH) verification.@*Results@#There were 79 females and 88 males in the study cohort. The patient′s age ranged from 35 to 77 years (mean 62 years). Cases with solid growth pattern (at least >10%) and without typical histological features of adenocarcinoma, squamous cell carcinoma or neuroendocrine carcinoma were further divided based on immunohistochemistry and mucin stain into 64 cases(38.32%)of adenocarcinoma, 34 cases(20.35%) squamous cell carcinoma, 21 cases(12.57%)large cell neuroendocrine carcinoma, 5 cases(2.99%)combined large cell neuroendocrine carcinoma, 2 cases(1.20%)adenosquamous carcinoma and 41 cases(24.55%)large cell carcinoma. The Ki-67 positive rate ranged from 5% to 65%. Mutations of EGFR were detected in 5 cases (2.99%, 5/167) of adenocarcinoma(19del in 3 cases and L858R in 2 cases). Two cases(1.20%, 2/167) with ALK-rearranged were identified by immunohistochemistry (Ventana D5F3) and confirmed by ALK FISH.@*Conclusions@#Poorly differentiated solid lung cancer without distinct morphological features can be further histologically subtyped by mucin staining and immunohistochemistry. Molecular testing should be performed for accurate molecular target therapy to improve the prognosis.

18.
Practical Oncology Journal ; (6): 483-487, 2018.
Article in Chinese | WPRIM | ID: wpr-733470

ABSTRACT

Objective The aim of this study was to explore whether the down-regulation of tumor suppressor gene PRDM5 is one of the mechanisms of HPV16 virus infection leading to cervical cancer. Methods The expressions of PRDM5 protein and HPV16 E6/HPV18 E6 protein in cervical cancer tissues and normal cervical tissues were detected by immunohistochemistry. After transfected with HPV16 E6 shRNA plasmid,the expression of PRDM5 gene was detected in SiHa cells by RT-PCR and Western blot. Results The positive expression rate of HPV 16/18 E6 in cervical cancer tissues was significantly higher than that in normal cervical tissues. The expression level of PRDM5 protein in cervical cancer tissues was lower than that in normal cervical tissues. After HPV16 E6 shRNA3 was transfected into SiHa cells to interfere with the expression of HPV16 E6 gene,the expression of PRDM5 at mRNA and protein levels was up-regulated in SiHa cells. Conclusion PRDM5 may mediate the development of cervical cancer caused by HPV16 virus infection.

19.
Article in Chinese | WPRIM | ID: wpr-610971

ABSTRACT

Objective To evaluate the efficacy of oxycodone for painless gastroscopy in pediatric patients when combined with propofol.Methods Sixty pediatric patients of either sex,aged 2-7 yr,weighing 10-28 kg,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,scheduled for elective painless gastroscopy,were divided into 2 groups (n=30 each) using a random number table:oxycodone group (O group) and sufentanil group (F group).The pediatric patients held by their parents entered the gastroscopy room,and propofol 1.5-2.0 mg/kg and penehyclidine hydrochloride 0.3 mg were intravenously injected.Oxycodone 0.1 mg/kg and sufentanil 0.1 μg/kg were intravenously injected in O and F groups,respectively.When body movement occurred during operation,additional propofol 1.0 mg/kg was intravenously injected.The occurrence of adverse reactions such as intraoperative body movement,laryngospasm and respiratory depression was recorded.The occurrence of postoperative vomiting and pain (FLACC pain scale scores >3) was also recorded.Results The incidence of intraoperative body movement,laryngospasm and respiratory depression and postoperative pain was significantly lower in O group than in F group (P<0.05).Conclusion When combined with propofol,oxycodone produces better efficacy than sufentanil for painless gastroscopy in pediatric patients.

20.
Article in Chinese | WPRIM | ID: wpr-511050

ABSTRACT

OBJECTIVE To investigate the immunogenicities of Poria cocos polysaccharides, PCP-Ⅰand PCP-Ⅱ, as a vaccine adjuvant. METHODS ①Keyhole limpet hemocyanin (KLH) was linked to PCP-Ⅰor PCP-Ⅱrespectively to prepare immuno-antigen KLH-PCP-Ⅰor KLH-PCP-Ⅱ. Bovine serum albumin (BSA) was also linked to PCP-Ⅰor PCP-Ⅱrespectively to prepare screening-antigen. Rabbits were immunized with KLH-PCP-Ⅰor KLH-PCP-Ⅱplus Freund adjuvant by intradermal injection twice, and serum specific antibody titers were determined by ELISA. ②BALB/c mice were immunized with PCP-Ⅰ or PCP-Ⅱ alone intramuscularly twice, and serum polysaccharide antibody titers were determined by ELISA.③BALB/c mice were co-immunized intramuscularly or subcutaneously with PCP-Ⅰor PCP-Ⅱplus hepatitis B surface antigen (HBsAg) or porcine reproductive and respiratory syndrome virus inactivated vaccine (PRRSV) twice, and serum polysaccharide-antibody titers were determined by ELISA. RESULTS ①Serum anti-KLH and anti-polysaccharides (PCP-Ⅰor PCP-Ⅱ) antibodies were pro?duced after rabbits were immunized with KLH-PCP-Ⅰor KLH-PCP-Ⅱplus Freund adjuvant twice.②Serum anti-PCP-Ⅰor anti-PCP-Ⅱantibodies were not found after mice were immunized with PCP-Ⅰand PCP-Ⅱalone twice.③After mice were immunized with HBsAg or PRRSV plus PCP-Ⅰor PCP-Ⅱtwice, serum anti-PCP-Ⅰor anti-PCP-Ⅱantibodies were not found. CONCLUSION PCP-Ⅰand PCP-Ⅱshow weak immunogenicity, which may be quite safe as a vaccine adjuvant.

SELECTION OF CITATIONS
SEARCH DETAIL