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1.
Chinese Journal of Geriatrics ; (12): 650-655, 2023.
Article in Chinese | WPRIM | ID: wpr-993869

ABSTRACT

Objective:To observe the changes of serum micro-inflammatory and nutritional status in elderly peritoneal dialysis patients after treatment with bifidobacterium triple viable bacteria, and the impact of Bifidobacterium triple viable bacteria treatment on the endpoint.Methods:Totally 180 elderly patients receiving peritoneal dialysis were divided into control group and observation group, with 90 cases in each.Both groups were treated on the basis of the routine treatment, the observation group was treated with oral Bifidobacterium triple viable bacteria for twelve months.Before treatment, 6 months and 12 months after treatment, fasting venous blood from the patients in the two groups were collected in the morning.The levels of serum micro-inflammatory indexes[tumor necrosis factor-α(TNF-α), interleukin-6(IL-6), interleukin-8(IL-8), C-reactive protein(CRP)]were detected by ELISA.The nutritional status and dialysis adequacy indexes[nutritional status: albumin(ALB), hemoglobin(Hb), transferrin(TRF), prealbumin(PA), calcium ion, phosphorus ion; indicators of dialysis adequacy: serum creatinine(Scr), blood uric acid(BUA), blood urea nitrogen(BUN), cystatin C(Cys-c)levels]were detected by automatic blood biochemical analyzer.After 24 months of follow-up, the occurrence of endpoint events(peritonitis, abdominal pain, malnutrition, abdominal infection, cardiovascular and cerebrovascular accidents)in the two groups was recorded.Results:After 24 months of treatment, the levels of TNF-α, IL-6, IL-8 and CRP in the two groups were lower than those before treatment, and the observation group was lower than control group[(25.7±4.0)μg/L vs.(33.6±6.0)μg/L, (2.9±0.7)ng/L vs.(4.9±1.2)ng/L, (17.0±7.2)ng/L vs.(22.8±7.9)ng/L, (4.6±0.7)mg/L vs.(6.9±1.2)mg/L]( t=10.272, 13.134, 5.040, 15.575, respectively, P<0.05 for all). After 24 months of treatment, the levels of ALB, Hb, TRF, PA and calcium ion of the two groups were higher than before treatment, and the levels of phosphorus ion were lower than before treatment, and the changes of the above indicators in observation group were more obvious than those in the control group[(45.7±5.2)g/L vs.(39.8±4.9)g/L, (72.7±8.0)g/L vs.(68.6±9.0)g/L, (4.3±1.0)g/L vs.(3.0±0.6)g/L, (321.5±29.0)mg/L vs.(297.6±25.1)mg/L, (4.9±1.3)mmol/L vs.(2.9±0.9)mmol/L, (1.3±0.9)/L vs.(1.8±0.3 mmol/L)]( t=7.737, 3.213, 9.880, 5.9 00, 11.937, 4.415, P<0.05 for all). There was no significant difference in intestinal flora between the two groups before treatment( P>0.05). After 24 months, an increase was observed in Lactobacilli and Bifidobacteria in both groups, while Enterobacteria and Enterococcus in both groups were decreased, and the changes of the above indicators in the observation group were also more obvious than those in the control group[(8.4±0.9)IgCFU/g ratio(6.4±0.9)IgCFU/g, (8.8±1.3)IgCFU/g ratio(7.9±1.3)IgCFU/g, (7.1±0.9)IgCFU/g ratio(8.0±1.1)IgCFU/g, (5.4±0.7)IgCFU/g ratio(6.9±0.9)IgCFU/g]( t=14.248, 4.339, 5.825, 12.753, P<0.05 for all). There was no significant difference in dialysis adequacy index between the two groups before treatment( P>0.05 for all). After 24 months of treatment, the levels of Scr, BUA, BUN and Cys-C in both groups decreased, and those of the observation group were lower than those of the control group[(471.5±50.5)μmol/L vs.(623.3±62.6)μmol/L, (17.5±0.5)mmol/L vs.(20.6±1.8)mmol/L, (16.4 ± 3.0)mmol/L vs.(22.5±2.0)mmol/L, (1.9±0.5)mg/L vs.(3.0±0.7)mg/L]( t=17.877, 14.976, 15.842, 11.749, P<0.05 for all). The incidence of endpoint events in the observation group was significantly lower than that in the control group(12.2% vs.2.2%, t=6.574, P<0.05 for all). Conclusions:After the treatment of Bifidobacterium triple viable bacteria in elderly peritoneal dialysis patients, the micro-inflammatory state of the patients was reduced, the nutritional status was improved, and the incidence of endpoint events was low, and has high clinical promotion and application value.

2.
Chinese Journal of Practical Nursing ; (36): 831-837, 2023.
Article in Chinese | WPRIM | ID: wpr-990260

ABSTRACT

Objective:To investigate the dose-response relationship between physical activity and sarcopenia in middle-aged and elderly people in Urumqi, and then provide the reference to guide the middle-aged and elderly people to arrange exercise reasonably.Methods:A total of 1886 middle-aged and elderly people (aged ≥ 50 years old) from December 2018 to December 2019 in Cihui Health Management Center in Urumqi were selected as the research objects to conduct a questionnaire survey, collected general information and physical examination data, and used the International Physical activity questionnaire to investigate and evaluate their daily activities. Diagnostic criteria of the Asian Working Group on Sarcopenia (AWGS) 2019 were used. Logistic regression model was used to analyze the relationship between physical activity and sarcopenia, and restricted cubic spline was used to analyze the dose-response relationship between physical activity and sarcopenia.Results:Among the investigated subjects, 208 people suffered from sarcopenia, and the prevalence rate was 11%. Multivariate analysis showed that after adjusting for confounding factors such as demographic characteristics, moderate and high intensity physical activity was associated with a lower risk of sarcopenia compared with low intensity physical activity ( OR = 0.389, 95% CI 0.261-0.580; OR = 0.055, 95% CI 0.025-0.122). The dose-response relationship between physical activity and sarcopenia showed an approximate 1-shaped dose-response relationship between total physical activity and sarcopenia ( P<0.01). Conclusions:The strength of the association between physical activity and sarcopenia was approximately an "L" shaped curve, and increased physical activity was associated with a lower risk of sarcopenia when physical activity was between 2500 and 3500 MEt-min/week.

3.
Journal of Xi'an Jiaotong University(Medical Sciences) ; (6): 421-426, 2023.
Article in Chinese | WPRIM | ID: wpr-1005849

ABSTRACT

【Objective】 To investigate the correlation of serum exosomal microRNA-301a (miR-301a) with cardiovascular and cerebrovascular events after peritoneal dialysis in diabetic nephropathy. 【Methods】 A total of 211 patients with diabetic nephropathy treated with peritoneal dialysis from June 2019 to June 2020 in the First Hospital Affiliated of Hebei North University were selected as study subjects. Serum exosomal miR-301a was detected by real-time fluorescence quantitative polymerase chain reaction. The patients were divided into high miR-301a group and low miR-301a group based on the median of miR-301a; the clinical data of the two groups were compared. The correlation of miR-301a with high-sensitivity C-reactive protein (hs-CRP) was analyzed by Spearman. Linear regression was applied to analyze the factors associated with the effect of miR-301a. The patients were followed up for two years. Kaplan-Meier and Log-Rank were conducted to compare the cumulative incidence of cardiovascular and cerebrovascular events between the two groups, and COX regression and restricted cubic spline were used to analyze the level-effect relationship between miR-301a and cardiovascular and cerebrovascular events after peritoneal dialysis. 【Results】 Thirty-seven cases (17.54%) of cardiovascular and cerebrovascular events occurred during follow-up. The hs-CRP level and dialysis duration were lower in low miR-301a group than in high miR-301a group (P<0.05). There was a positive correlation between miR-301a and hs-CRP (rs=0.237, P=0.001). Linear regression analysis showed that hs-CRP was independently associated with miR-301a (P<0.05). The cumulative cardiovascular and cerebrovascular event rate in low miR-301a group was 3.70% (4/108), which was lower than that in high miR-301a group [32.04% (33/103), P<0.001]. COX regression analysis showed that high serum albumin level was an independent protective factor for cardiovascular and cerebrovascular events after peritoneal dialysis in diabetic nephropathy,while high hs-CRP level and miR-301a >1.46 were independent risk factors for cardiovascular and cerebrovascular events after peritoneal dialysis in diabetic nephropathy. Restricted cubic spline fitting COX regression analysis showed a non-linear relationship between miR-301a and cardiovascular and cerebrovascular events after peritoneal dialysis in diabetic nephropathy (P<0.05). 【Conclusion】 hs-CRP is independently associated with miR-301a in diabetic nephropathy peritoneal dialysis patients. High miR-301a level suggests a high risk of cardiovascular and cerebrovascular events after peritoneal dialysis in diabetic nephropathy.

4.
Journal of Jilin University(Medicine Edition) ; (6): 1260-1264, 2017.
Article in Chinese | WPRIM | ID: wpr-668034

ABSTRACT

Objective: To discuss the pathogenesis,clinical manifestations,diagnosis,differential diagnosis, treatment,and prognosis of the patient with rituximab (RTX)-induced interstitial lung disease (ILD) (RTX-ILD).Methods:A male patient aged 19 years old was confirmed as classical Hodgkin's lymphoma more than 2 years ago,and received autologous hemopoietic stem cell transplantation (HSCT)when the disease recurred 1 year ago.Two months after HSCT,the maintenance chemotherapy was given every month with 375 mg· m-2 RTX,but the mediastinal recurrence appeared during the period,then the mediastinal residual lesion radiotherapy was done for 10 times.However,8 d after the third RTX chemotherapy,the patient experienced post-exercising tachypnea,fever,cough,chest congestion,and limb weakness.The chest CT scanning results suggested ground gloss opacity on both lungs,and blood gas analysis suggested a hypoxemia.Neither antibacterial nor antifungal treatment worked well.Afterwards,the sequential etiological examination showed the negative results,and the bronchoscope examination showed the normal results as well.Considering about the possibility of RTX-ILD,RTX was stopped immediately and turned to intravenous infusion of methylprednisolone 40 mg per day.Results:Five d later,the symptoms of the patients were improved,and the follow-up methylprednisolone was changed to oral and gradually reduced to discontinuation.Conclusion:RTX-ILD is relatively rare,and its clinical manifestations lack specificity. Hormonotherapy is the main method in treatment of RTX-ILD. The patients sensitive to hormonotherapy have better prognosis than those insensitive to hormonotherapy.

5.
Chinese Journal of Practical Nursing ; (36): 2007-2011, 2017.
Article in Chinese | WPRIM | ID: wpr-662438

ABSTRACT

Objective To explore the effect of prevention intraoperative hypothermia of different heat preservation measures during craniotomy cerebroma resection surgery in the department of neurosurgery. Methods According to the inclusion criteria, a total of 90 patients with craniocerebral surgery were recruited and randomly divided into A, B, C groups with random number table method, and 30 patients in each group. And the three groups were respectively given different heat preservation measures of regular cover, regular cover with infusion heating, regular cover with force-air warming. Meanwhile the rectal temperatures of just entered into the operating room, immediately after anesthesia induction and every 30 minutes after induction of anesthesia, as well as the HR, BP, the amount of infusion and flushing liquor, operation time, incidence of chills during operation, the condition of surgical site infection and hospitalization days were recorded and analyzed statistically by means of the software of SPSS 13.0. Results Rectal temperatures of the three groups were no statistically significant difference (P>0.05) ,when the patients just were moved into the operating room, immediately after anesthesia induction and 0.5 h、1 h after anesthesia induction. The rectal temperatures of the three groups had statistically significant difference (P<0.05) from the 1.5h after anesthesia induction to the end of the surgery.The incidence rates of introperative hypothermia and chill of group C were 26.7%(8/30)and10.0% (3/30),lower than group A and group B:60.0%(18/30), 33.3%(10/30)and 53.3%(16/30), 13.3%(4/30), meanwhile the statistically significant difference was found in these three groups (χ2=7.500, P=0.024;χ2=6.237, P=0.044).The volume of intraoperative blood loss and transfusion were 200(100, 300), 45(0, 60) ml, which lower than group A and group B:300(200, 525), 215(0, 400) ml and 250(150, 500), 120(0, 200) ml, and statistically significant difference was also found in these three groups(H=7.612, P=0.022;H=6.194, P=0.045). Conclusions Regular cover with force-air warming can effectively reduce the incidence of intraoperative hypothermia and chills of craniotomy cerebroma resection patients in the department of neurosurgery and reduce intraoperative bleeding and transfusion volume, as well as ensure the effect of surgical treatment. So it′s worth popularizing in clinic.

6.
Chinese Journal of Practical Nursing ; (36): 2007-2011, 2017.
Article in Chinese | WPRIM | ID: wpr-660041

ABSTRACT

Objective To explore the effect of prevention intraoperative hypothermia of different heat preservation measures during craniotomy cerebroma resection surgery in the department of neurosurgery. Methods According to the inclusion criteria, a total of 90 patients with craniocerebral surgery were recruited and randomly divided into A, B, C groups with random number table method, and 30 patients in each group. And the three groups were respectively given different heat preservation measures of regular cover, regular cover with infusion heating, regular cover with force-air warming. Meanwhile the rectal temperatures of just entered into the operating room, immediately after anesthesia induction and every 30 minutes after induction of anesthesia, as well as the HR, BP, the amount of infusion and flushing liquor, operation time, incidence of chills during operation, the condition of surgical site infection and hospitalization days were recorded and analyzed statistically by means of the software of SPSS 13.0. Results Rectal temperatures of the three groups were no statistically significant difference (P>0.05) ,when the patients just were moved into the operating room, immediately after anesthesia induction and 0.5 h、1 h after anesthesia induction. The rectal temperatures of the three groups had statistically significant difference (P<0.05) from the 1.5h after anesthesia induction to the end of the surgery.The incidence rates of introperative hypothermia and chill of group C were 26.7%(8/30)and10.0% (3/30),lower than group A and group B:60.0%(18/30), 33.3%(10/30)and 53.3%(16/30), 13.3%(4/30), meanwhile the statistically significant difference was found in these three groups (χ2=7.500, P=0.024;χ2=6.237, P=0.044).The volume of intraoperative blood loss and transfusion were 200(100, 300), 45(0, 60) ml, which lower than group A and group B:300(200, 525), 215(0, 400) ml and 250(150, 500), 120(0, 200) ml, and statistically significant difference was also found in these three groups(H=7.612, P=0.022;H=6.194, P=0.045). Conclusions Regular cover with force-air warming can effectively reduce the incidence of intraoperative hypothermia and chills of craniotomy cerebroma resection patients in the department of neurosurgery and reduce intraoperative bleeding and transfusion volume, as well as ensure the effect of surgical treatment. So it′s worth popularizing in clinic.

7.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (24): 484-486, 2014.
Article in Chinese | WPRIM | ID: wpr-749323

ABSTRACT

OBJECTIVE@#To Study the personality characteristics in patients with sudden deafness.@*METHOD@#Thirty-eight sudden deafness patients and 45 healthy volunteers were assessed by Eysenck personality questionnaire (EPQ).@*RESULT@#The standard scores of P, E, N dimensions of patients with sudden deafness were greater than healthy volunteers. The standard score in L dimensions of patients with sudden deafness was less than healthy volunteers. The difference of the standard score of P dimension revealed statistical significance (P 0.05).@*CONCLUSION@#Sudden deafness patients have emotional instability and psychoticism personality characteristics.


Subject(s)
Adolescent , Adult , Female , Humans , Male , Middle Aged , Young Adult , Case-Control Studies , Hearing Loss, Sudden , Psychology , Personality
8.
Journal of Biomedical Engineering ; (6): 1153-1170, 2013.
Article in Chinese | WPRIM | ID: wpr-259749

ABSTRACT

Distortion product otoacoustic emission (DPOAE) signal can be used for diagnosis of hearing loss so that it has an important clinical value. Continuously using sweeping primaries to measure DPOAE provides an efficient tool to record DPOAE data rapidly when DPOAE is measured in a large frequency range. In this paper, locally weighted least squares estimation (LWLSE) of 2f1-f2 DPOAE is presented based on least-squares-fit (LSF) algorithm, in which DPOAE is evoked by continuously sweeping tones. In our study, we used a weighted error function as the loss function and the weighting matrixes in the local sense to obtain a smaller estimated variance. Firstly, ordinary least squares estimation of the DPOAE parameters was obtained. Then the error vectors were grouped and the different local weighting matrixes were calculated in each group. And finally, the parameters of the DPOAE signal were estimated based on least squares estimation principle using the local weighting matrixes. The simulation results showed that the estimate variance and fluctuation errors were reduced, so the method estimates DPOAE and stimuli more accurately and stably, which facilitates extraction of clearer DPOAE fine structure.


Subject(s)
Humans , Algorithms , Hearing Loss , Diagnosis , Least-Squares Analysis , Otoacoustic Emissions, Spontaneous , Regression Analysis
9.
Chinese Journal of General Practitioners ; (6): 636-637, 2013.
Article in Chinese | WPRIM | ID: wpr-437020

ABSTRACT

Atomic absorption spectrometry was employed to determine the levels of 7 essential trace elements in the whole blood of 150 mainteinance hemodialysis (MHD) patients.And comparisons were made with the normal group of 200 participants in routine medical examination at the same time at our hospital.And among 7 indices,as compared with the control group,the blood levels of zinc,chromium,cobalt and manganese were significantly lower (P < 0.05) while those of selenium and copper higher (P < 0.05).MHD patients lacked essential trace elements to a varying extent.A clinician should pay attention to complementing essential trace elements to improve the patient's quality of life.

10.
Chinese Journal of Clinical Oncology ; (24): 1518-1522, 2013.
Article in Chinese | WPRIM | ID: wpr-439788

ABSTRACT

Objective: To investigate the relationship between the c-Jun N-terminal kinase (JNK) pathway and lung-resistance protein (LRP). Methods:A549 cells were treated with various concentrations of CDDP for 72 h. The LRP mRNA expression was then analyzed using reverse transcription PCR (RT-PCR). LRP, JNK, and P-JNK were analyzed by Western blotting. The A549 cells were then pretreated with SP600125 (2 μg/ml to 4 μg/ml ) for 1 h. Afterward, CDDP (16 μg/ml) was added into the culture for 72 h. A Cell Counting Kit-8 was used to investigate the sensitivity of CDDP to the A549 cells. Flow cytometry was used to detect the apoptosis rate. The LRP mRNA expression was analyzed using RT-PCR. LRP, JNK, and P-JNK were analyzed by Western blotting. Results:CDDP in-duced the mRNA and protein expression of both LRP and P-JNK in a dose-dependent manner. Pretreatment with SP600125 enhanced the sensitivity of CDDP to the A549 cells and increased the apoptosis rate. However, the LRP mRNA and LRP expression in the pre-treated cells was lower than that in the presence of CDDP alone. Conclusion:In A549 cells, CDDP induces the LRP expression via the JNK pathway. This result suggests that lung cancer therapy can be improved by the addition of CDDP to inhibit the JNK signaling path-way.

11.
Chinese Journal of General Practitioners ; (6): 932-933, 2012.
Article in Chinese | WPRIM | ID: wpr-430406

ABSTRACT

The nutritional status of 162 patients with maintenance hemodialysis (MHD) was screened by Nutritional Risk Screening 2002 (NRS-2002) and assessed by Subjective Global Assessment (SGA) at the next day of admission.Among 150 MHD patients who met the study requirement,the nutritional risk was 29.3% as screened with NRS-2002,and the rate of nutrition deficiency was 41.3% with SGA assessment,there was no difference between two methods (x2 =18.155,P =0.109) ; According to BMI,the incidence of nutrition deficiencies,overweight and obesity in MHD patients was 13.3%,30.7% and 29.3%.NRS-2002 and SGA are applicable to nutritional deficiencies assessment in MHD patients,but NRS-2002 is more comprehensive and feasible than SGA.

12.
China Journal of Chinese Materia Medica ; (24): 1095-1099, 2010.
Article in Chinese | WPRIM | ID: wpr-285397

ABSTRACT

<p><b>OBJECTIVE</b>To study the effects of heavy metals on germination and antioxidant systems of the seeds of Astragalus membranaceus.</p><p><b>METHOD</b>The seeds were treated with three different heavy metals (Cu, Pb, Cd) and the germination rate, germination energy, germination index, seedling root length, seedling fresh weight, soluble protein, antioxidant enzyme systems, electrical conductivity were detected and analyzed.</p><p><b>RESULT</b>The results indicated that all of the three kinds of heavy metals had a significant effect on the seed germination index at different levels of concentrations except germinating ability. Different kinds of heavy metals could also enhance the vitality of POD and CAT, increase the electrical conductivity and the concentration of soluble protein.</p><p><b>CONCLUSION</b>It can be concluded that heavy metals have a significant effect on the growth and antioxidant system of the seed.</p>


Subject(s)
Antioxidants , Metabolism , Astragalus propinquus , Chemistry , Physiology , Germination , Metals, Heavy , Pharmacology , Plant Proteins , Metabolism , Seeds , Chemistry , Physiology
13.
Chinese Journal of Immunology ; (12): 214-217, 2010.
Article in Chinese | WPRIM | ID: wpr-403260

ABSTRACT

Objective:To construct eukaryotic expression plasmids of pneumocystis carinii p55-v3 and p55-v0 antigenic genes and to identify their expression in COS-7 cells at mRNA level.Methods:Pneumocystis carinii total RNA was used as the template to amplify p55-v3 and p55-v0 antigenic gene by RT-PCR.The products were connected to pTA2 vector and then cloned in pVAX1 eukaryotic expression vector to construct recombinant plasmids as pVAX-p55-v3 and pVAX-p55-v0.After propagated in E.coli DH5α,the recombinant plasmids were transfected into COS-7 cells.After 24 h incubation,the RT-PCR was performed to identify the mRNA expression of p55-v3 and p55-v0 antigenic gene.Results:The recombinant plasmids were qualified by restrictive endonuclease digestion and sequencing.And when compared with that in GenBank,the homology of p55-v3 antigenic gene was 99.9% in nucleotides and 100% in amino acid.The homology between p55-v0 antigenic gene and the one reported previously in nucleotide and amino acid seguence were 99.8% and 100%.The results of RT-PCR confirmed that p55-v3 and p55-v0 antigenic genes were transfected into COS-7 cells successfully and the genes were expressed in the cells.Conclusion:In this study,the recombinant plasmids of pVAX-p55-v3 and pVAX-p55-v0 are conducted successfully and expressed in the COS-7 cells,which provide a basis for clarification of immunologic function of p55-v3 and study of DNA vaccine.

14.
China Journal of Chinese Materia Medica ; (24): 1655-1659, 2010.
Article in Chinese | WPRIM | ID: wpr-328088

ABSTRACT

<p><b>OBJECTIVE</b>To study the accumulation and translocation of cadmium in the soil and Artemisia annua, and observe its effects on growth of A. annua and artemisinin content.</p><p><b>METHOD</b>A. annua were cultivated in pots with Cd concentration at 0.5, 1.5, 4.5 mg x kg(-1) level, respectively.</p><p><b>RESULT AND CONCLUSION</b>The growth of A. annua was inhibited at all the Cd levels characterized by the decreases of biomass and agronomic parameters; Most of Cd was accumulated in the roots of A. annua, and the ratios of Cd concentrations in roots and aerial part were 1.8:1 and 2.3:1 at 1.5, 4.5 mg x kg(-1) Cd level, respectively. Artemisinin content increased significant at 0.5 mg x kg(-1) Cd level, but there were no significant changes comparing with control group other Cd levels.</p>


Subject(s)
Artemisia annua , Chemistry , Metabolism , Artemisinins , Metabolism , Cadmium , Metabolism , Toxicity , Plant Extracts , Metabolism , Soil Pollutants , Metabolism , Toxicity
15.
China Journal of Chinese Materia Medica ; (24): 807-811, 2009.
Article in Chinese | WPRIM | ID: wpr-265366

ABSTRACT

For optimal adaptive cultivation region selection, we used ecology factors characterized Duolun region as model area to carry out the adaptive habitat division of Paeonia lactiflora. Similar priority comparison of ecology factors.in 91 cities were calculated by Fuzzy methods, then, distance of the ecology factors were transferred to spacial model by geography information system (,GIS) and modified by soil utilization map of China. The results showed that P. lactiflora were mainly distributed in the Daxing'an Mountain, Changbaishan and qinling range which were divided into six grades of suitable regions belonging to three geographical distributed units. The most similar areas to Duolun were Huade, Xilinhaote, Suolun and Zhangbei. P. lactiflora's distribution and quality are relevant with longitude and latitude, and temperature and rainfall.


Subject(s)
China , Environment , Fuzzy Logic , Paeonia , Classification , Temperature
16.
Journal of Medical Research ; (12)2006.
Article in Chinese | WPRIM | ID: wpr-566597

ABSTRACT

Objective To evaluate the validity of lipoprotien(a) [Lp(a)] concentration as diagnostic test for coronary heart disease (CHD) and stegnotic degree of coronary artherosclerosis. Methods 416 cases of patients who were assessed with coronary angiography were divided into four groups according to the stegnotic degree of coronary artherosclerosis. There were no stenosis and lipid plaque group, single branch group, double branch group, three branch and suffusive stenosis group. TC, HDL - C, LDL - C, ApoAl, ApoB, Lp(a) were examined in early morning fasting for 12 hours after the next admission day. Other risk factors were also recorded, such as hypertension. Results When Lp(a) concentration was used alone to diagnose CHD, the best cutoff value was 15 mg/dl. The crude agreement was 58.2% , the sensitivity was 57.5% , and the specificity was 59.3% . Along with the stegnotic degree of coronary artherosclerosis heavier, the levels of the crude agreement and the sensitivity had a indreasing trend,and levels of the false negative rate had a deoreasing trend. Conclusion The validity of Lp(a) concentration as diagnostic test for CHD is not satisfactory.

17.
West China Journal of Stomatology ; (6): 364-366, 2002.
Article in Chinese | WPRIM | ID: wpr-279609

ABSTRACT

<p><b>OBJECTIVE</b>The purpose of this study was to determine the thermal, mechanical properties and density of the composite infiltrated with GI-II tinted infiltration glass.</p><p><b>METHODS</b>The bar-shaped aluminum oxide and glass/alumina composite specimens with the size of 20 mm x 5 mm x 5 mm were prepared, with two free-end surfaces perpendicular to the long axis of the specimens and parallel to each other. The thermal expansion curves were obtained on a TMA2940 thermal analyzer with heating rate of 5 degrees C/min and temperature range of 25 degrees C to 1000 degrees C. The bar-shaped specimens with the size of 25 mm x 5 mm x 2 mm were fabricated and employed to test the density using Archmede's method. The flexural strength, elastic modulus were measured by means of 3-point bending test with the same specimens. The fractured specimens were indented with Vicker's diamond pyramid under load of 49 N for 15 seconds to determine the hardness and indentation fracture toughness.</p><p><b>RESULTS</b>The thermal expansion coefficient of the glass/alumina composite was 7.620 x 10(-6) degrees C-1 (25-500 degrees C), which was higher than that of Vitadur alpha veneering porcelain. The 3-poit flexural strength, elastic modulus, Vicker's hardness, indentation fracture toughness and density were 389.6 MPa, 92 GPa, 9.409 GPa, 3.2425 MNm-3/2 and 3.662 g/cm3 respectively.</p><p><b>CONCLUSION</b>The thermal expansion of the GI-II glass/alumina composite is compatible with that of Vitadur alpha veneering porcelain, and the material could meet the strength demands for clinical use.</p>


Subject(s)
Aluminum Oxide , Chemistry , Ceramics , Dental Materials , Dental Porcelain , Chemistry , Glass , Chemistry , Tensile Strength , Transition Temperature
18.
Journal of Chongqing Medical University ; (12)1986.
Article in Chinese | WPRIM | ID: wpr-576509

ABSTRACT

Objective:To study the expression of a novel apoptosis inhibitor gene,survivin,in non-small cell lung carcinoma (NSCLC),and its correlation to the expression of P16INK4a gene.Methods:The immunohistochemistry was used to assay the expression of surviving and P16INK4a in tissues of fifty-six cases of non-small cell lung carcinoma,with 12 specimens of benign lesions as the control.Results:Survivin was expressed in 36 out of 56(64.3%)cases of NSCLC,and its expression rate in benign pulmonary diseases was only 8.3%(P

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