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1.
Chinese Journal of Biotechnology ; (12): 2563-2570, 2021.
Article in Chinese | WPRIM | ID: wpr-887822

ABSTRACT

With the rapid development of modern biotechnology, the cultivation of high-quality biotechnology talents has received more and more attention. The course of Biologicology is a core subject that students majoring in biology should master. However, Biologicology is a new subject, and its teaching content and teaching methods are at the exploratory stage. Based on the current teaching status and existing problems of the Biologicology course, we propose teaching reforms in terms of teaching content, teaching methods and assessment methods, to lay a firm foundation for the further teaching efficacy of Biologicology course and increasing students' interest in learning.


Subject(s)
Curriculum , Humans , Learning , Students
2.
Article in Chinese | WPRIM | ID: wpr-868143

ABSTRACT

Objective:To access the effectiveness and safety of the intrauterine balloon tamponade verse gauze packing combined with temporary abdominal aortic balloon occlusion in the management of placenta accreta spectrum (PAS).Methods:This was an open-label, randomized controlled trial conducted in Nanjing Drum Tower Hospital. The patients suspected with PAS for uterine preservation surgery under the multidisciplinary team care were recruited between Aug 2015 and Jan 2018. When bleeding could not be achieved after fetus delivered, and a temporary abdominal aortic balloon occlusion and the compression sutures as needed, the women were randomly allocated 1∶1 into balloon tamponade ( n=81) or gauze packing ( n=80) group. The primary outcome was successful bleeding arrests by avoiding second line surgeries. The secondary outcomes included the volume of blood loss during and after cesarean section, the rate of PPH, incidence and amount of blood transfusion, hysterectomy, postpartum pain, ICU admission, need for re-laparotomy, and the length of hospital stay, readmission, and interventional radiology complications. Results:All the women [100% (81/81)] in the balloon group were obtained hemostasis without further intervention, significantly higher than 88% (70/80) in the gauze group ( P=0.001). Before uterine tamponade, blood loss were 820 ml (620-1 230) ml and 850 ml (605-1 442) ml, while placenta bed were sutured in 96%(78/81, 77/80) respectively ( P>0.05).The proportion of blood loss≥1 000 ml was higher in the gauze group than that in the balloon group ( P=0.006). Maternal adverse events involving total blood loss, puerperal morbidity and postpartum pain occurred more frequently in the gauze group ( P<0.05). The following outcome showed no statistically significant difference between the two groups: the vascular occlusion time, the dose of radiation, and interventional radiology complication ( P>0.05). The median volume infused into the lower and upper balloons is 70 ml (50-100 ml) and 180 ml (100-240 ml). Conclusions:Incrauterine balloon tamponade is as effective as gauze packing in hemostasis following the placenta delivery in PAS. Compared with gauze packing, the uterine balloon tamponade is more effective.

3.
Chinese Journal of Biotechnology ; (12): 1537-1545, 2019.
Article in Chinese | WPRIM | ID: wpr-771775

ABSTRACT

Exosomes have many advantages as natural drug delivery carriers, but their application is limited by the inefficient loading of intracellular drugs (such as proteins and nucleic acids). In this study, mCherry, a red fluorescent protein, was used as the endogenous cargo target. Through gene modification of donor cells and fusion expression of membrane localization elements (PB, CAAX, Palm and CD63), mCherry was specifically sorted into exosomes through biogenesis. Results show that CD63 had the highest sorting efficiency, followed by Palm. PB and CAAX led enrichment of mCherry on the plasma membrane, but not in exosomes. The approach provides an alternative to facilitate packaging of cargo by exosomes and thus to increase the efficient delivery of endogenous protein drugs.


Subject(s)
Drug Carriers , Drug Delivery Systems , Exosomes , HEK293 Cells , Humans , Protein Transport
4.
Article in Chinese | WPRIM | ID: wpr-711219

ABSTRACT

Objective To assess the current practice in managing hypertensive disorders of pregnancy (HDP) and provide possible interventions to improve the quality of care.MethodsA checklist was developed based on Chinese Medical Association's guideline on HDP. A criteria-based audit was conducted on 66 HDP patients who were admitted to the Intensive Care Unit (ICU) of Nanjing Drum Tower Hospital,The Affiliated Hospital of Nanjing University Medical School between January 1, 2014 and December 31, 2016. The quality of care during antepartum and hospitalized period were evaluated, and patient factors were also considered. We also collected data on patients' demographics, complications of HDP, acute physiology and chronic health evaluation (APACHE)Ⅱ score and duration of hospital stay.T or Mann-WhitneyU test orChi-square test was performed. Results(1) From 2014 to 2016, the number of deliveries in Nanjing Drum Tower Hospital was 18573, with 1561 cases (8.4%) of HDP. Among the 66 cases being audited, 44 (66.7%) were preeclampsia; 16 (24.2%) were preeclampsia complicated by chronic hypertension; six (9.1%) were eclampsia; no maternal death was reported. (2) Complications of HDP in this study included heart failure (17 cases, 25.8%), hemolysis, elevated liver enzyme levels, low platelet count (HELLP) syndrome (15 cases, 22.7%), anemia and/or thrombopenia requiring transfusion (12 cases, 18.2%), renal dysfunction (seven cases, 10.6%), eclampsia (six cases, 9.1%), pulmonary edema/acute respiratory distress syndrome (five cases, 7.6%), placenta abruption (four cases, 6.1%), cerebral venous and sinus thrombosis (two cases, 3.0%), cerebral hemorrhage (one case, 1.5%) and hepatic rupture (one case, 1.5%). Their APACHEⅡ score was 9.0±3.9. The duration of ICU and hospital stay was 2 (1-30) d and 8 (4-32) d, respectively. (3) Compared with the gravidas who registered during antenatal care, those without registrations were older [(33.0±6.0) vs (29.1±5.4) years old,t=-2.616], having less antenatal visits [2 (0-4) vs 5 (2-10) times, Z=110.000] and higher blood pressure on admission [(177.0±24.1) vs (155.5±24.6) mmHg of systolic blood pressure (t=-3.322), and (116.4±14.6) vs (108.0±18.7) mmHg of diastolic blood pressure (t=-3.013, 1 mmHg=0.133 kPa)], and only a few of them were nulliparas [23.8%(5/21) vs 71.1%(32/45),χ2=13.006] (all P<0.05). (4) Among the 66 cases, seven (10.6%) had preeclampsia history, but none of them received aspirin for HDP prevention; 21 (31.8%) did not have regular testing of blood pressure during antenatal check; 24 (36.4%) did not receive proper antenatal evaluation when hypertension was identified. (5) After excluding 20 cases directly admitted upon the first diagnosis of HDP, the rest 46 were managed in the outpatient department. Eighteen of them (39.1%) did not have blood pressure monitoring and 26 of them (56.5%) did not have a regular test of hemoglobin, platelet, urine protein, liver or renal function. (6) Twenty-nine gravidas (43.9%) suffered a delay in referral or admission. (7) All gravidas received magnesium sulphate administration. Thirty-three cases with severe hypertension (systolic blood pressure≥160 mmHg or diastolic blood pressure≥110 mmHg) were given antihypertensive drugs with satisfactory blood pressure control. Thirty-six cases with living fetus (26-34+6 gestational weeks) received antenatal dexamethasone. Termination of pregnancy was delayed in three cases after admission.ConclusionsThe management of HDP is not good enough in patients' education, screening for high-risk population, early diagnosis and antenatal care. Quality improvement efforts should be focused on strengthening patient education, training of doctors in primary and secondary hospitals, implementing protocols on antepartum care of preeclampsia and establishing a referral system for patients with severe obstetric complications.

5.
Article in Chinese | WPRIM | ID: wpr-852490

ABSTRACT

Objective To explore the effect of Coptis chinensis on the intestinal microflora diversity of rats with type 2 diabetes mellitus and further elucidate the mechanism of C. chinensis in treatment of type 2 diabetes mellitus. Methods SD rats were randomly divided into control group (CON), model group (M), C. chinensis group (HL), and positive control group (POS), 10 in each group respectively. Type 2 diabetes mellitus model was caused by special diet fed and ip injection of STZ together. CON with M, HL, and POS was respectively given gavage volume 0.5% CMC-Na, 4.36 g/kg C. chinensis water extract and 0.097 g/kg of metformin. The body weight and blood glucose were monitored once a week separately. After four weeks of administration, the oral glucose tolerance and insulin level were measured. After four weeks of administration, the contents of rectum were collected and sequenced by a 16 S rRNA gene sequencing. Results A total of 951OTU, 15 Phylum, 25 Class, 43 Order, 69 Family, 182 Genus and 357 Species were obtained. At the level of Phylum, the content of Actinobacteria in M was significantly higher than that in CON and HL (P < 0.05), while Deferribacteres was only detected in M. In M, Firmicutes, Spirochaetae, Tenericutes, and Elusimicrobia were higher than CON. Interestingly, they were all reduced after giving C. chinensis, meanwhile the abundance of Proteobacteria, Fusobacteria and Verrucomicrobia in HL were slightly higher than that in CON and M. Conclusion Actinobacteria and Deferribacteres were probably potential markers in type 2 diabetes mellitus. After administrating C. chinensis, the change of intestinal microflora diversity revealed C. chinensis could improve the intestinal microflora disorder of type 2 diabetes mellitus.

6.
Chinese Medical Journal ; (24): 2109-2114, 2016.
Article in English | WPRIM | ID: wpr-307459

ABSTRACT

<p><b>BACKGROUND</b>The offspring of women with gestational diabetes mellitus (GDM) are prone to macrosomia. However, birth weight is difficult to be correctly estimated by ultrasound because of fetal asymmetric growth characteristics. This study aimed to investigate the correlations between fetal hemodynamics, fetal growth indices in late pregnancy, and birth weight in GDM.</p><p><b>METHODS</b>A total of 147 women with GDM and 124 normal controls (NC) were enrolled in this study. Fetal hemodynamic indices, including the systolic/diastolic ratio (S/D), resistance index (RI), pulsatility index (PI) of umbilical artery (UA), middle cerebral artery (MCA), and renal artery (RA), were collected. Fetal growth indices, including biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur length, were also measured by ultrasound. Birth weight, newborn gender, and maternal clinical data were collected.</p><p><b>RESULTS</b>The independent samples t-test showed that BPD, HC, and AC were larger in GDM than in NC (P < 0.05). Fetal hemodynamic indices of the UA and MCA were lower (P < 0.05), but those of the RA were higher (P < 0.001) in GDM than in NC. Birth weight was higher in GDM than in NC (P < 0.001). Pearson's correlation analysis showed that hemodynamic indices of the UA were negatively correlated with birth weight, BPD, HC, and AC in both groups (P < 0.05). MCA (S/D, PI, and RI) was negatively correlated with birth weight, HC, and AC in GDM (r = -0.164, -0.206, -0.200, -0.226, -0.189, -0.179, -0.196, -0.177, and - 0.172, respectively, P< 0.05), but there were no correlations in NC (P > 0.05). RA (S/D, PI, and RI) was positively correlated with birth weight in GDM (r = 0.168, 0.207, and 0.184, respectively, P< 0.05), but there were no correlations in NC (P > 0.05).</p><p><b>CONCLUSION</b>Fetal hemodynamic indices in late pregnancy might be helpful for estimating newborn birth weight in women with GDM.</p>


Subject(s)
Adult , Birth Weight , Physiology , Cerebral Arteries , Physiology , Diabetes, Gestational , Female , Fetal Development , Physiology , Hemodynamics , Physiology , Humans , Infant, Newborn , Male , Pregnancy , Pregnancy Outcome , Renal Artery , Physiology , Ultrasonography, Prenatal , Umbilical Arteries , Physiology
7.
Chinese Acupuncture & Moxibustion ; (12): 1233-1236, 2016.
Article in Chinese | WPRIM | ID: wpr-247809

ABSTRACT

<p><b>OBJECTIVE</b>To observe the intervention effects of acupuncture combined with standardized treatment of western medicine on blood-stasis syndrome in unstable angina (UA) patients with different thrombolysis in myo-cardial infarction (TIMI) risk stratification.</p><p><b>METHODS</b>According to TIMI risk score, a total of 72 UA patients were included, 24 cases in low-risk (0 to 2 points) group, 24 cases in moderate-risk (3 to 4 points) group and 24 cases in high-risk (5 to 7 points) group. Based on routine standardized treatment of western medicine, acupuncture was applied at Xinshu (BL 15), Xuehai (SP 10), Geshu (BL 17), Danzhong (CV 17), Jueyinshu (BL 14), Ximen (PC 4) and Neiguan (PC 6) in three groups. Acupuncture was given once a day, 14 days as a session. After one session, each symptom score and total score of blood stasis syndrome were observed.</p><p><b>RESULTS</b>One patient dropped out respectively, and 23 patients in each group were included in the analysis. After treatment, the score of angina symptom and total score of blood stasis syndrome were significantly improved in three groups (all<0.01). The improvements of each score and total score of blood stasis syndrome in the high-risk group were superior to those in the low-risk group and moderate-risk group (<0.05,<0.01).</p><p><b>CONCLUSIONS</b>With the higher TIMI scores, the blood stasis syndrome is aggravated accordingly. Acupuncture combined with standardized treatment of western medicine could effectively intervene blood stasis syndrome, especially for the score of blood stasis syndrome of patients in high-risk group.</p>

8.
Article in Chinese | WPRIM | ID: wpr-462107

ABSTRACT

Objective To compare the disinfection efficacy of different disinfectants on dental unit waterlines (DUWLs). Methods 18 sets of DUWLs were randomly divided into 4 groups,and disinfected or treated with hydrogen peroxide (H2 O2 )disinfectant,sodium hypochlorite (NaClO)disinfectant,hydrogen peroxide silver ion disinfectant(Sanosil),and distilled water (DW)respectively.Water specimens from triple syringes and high-speed handpieces were taken,bacterial count before and after disinfection were compared.Results Before disinfection,no significant differences in bacterial counts were found among four groups (all P >0.05),bacterial counts of DUWLs of all groups severely exceeded the standard(all>3 000 CFU/mL).After disinfection,except DW group,bacterial counts of DUWLs of the other groups declined dramat-ically (all <100 CFU/mL),bacterial count after disinfection were all obviously lower than before disinfection (all P <0.001 ).One week after disinfection,bacterial counts among three disinfectant groups in different time periods were statisti-cally different (triple syringes:Day1—Day5,all P <0.05;high-speed handpieces:Day2,Day3 and Day5,all P <0.05). Day3 after disinfection of triple syringes by H2 O2 and NaClO,Day4 after disinfection of high-speed handpieces by H2 O2 and NaClO,and Day5 of triple syringes and high-speed handpieces by Sanosil all exceeded the standard of Center for Disease Control and Prevention of America.One week after disinfection,bacterial counts of three disinfection groups all exceeded or approximated to that before disinfection.Conclusion Three types of disinfectants can all effectively reduce bacterial load in DUWLs.Compared with other disinfectants,Sanosil has advantage of inhibiting bacterial growth after disinfection.

9.
Article in English | WPRIM | ID: wpr-257636

ABSTRACT

<p><b>OBJECTIVE</b>To explore the differences of the thresholds of pain and analgesic effects of parecoxib sodium among patients with different racial and religious backgrounds.</p><p><b>METHODS</b>A total of 48 male patients aged 18 to 38 years who had undergone elective laparoscopic appendectomy under general anesthesia in our centers were enrolled in our study and then divided into 6 groups(n=8 in each group)based on their racial backgrounds(three levels:Mongoloid,Negroid,and Europoid)and religious backgrounds(two levels:without religion background,with religion background).All subjects received the same anesthesia,surgical procedure,and postoperative analgesia with parecoxib sodium. The temperature pain threshold and electrical pain threshold were detected 1h before and after analgesia.</p><p><b>RESULTS</b>The threshold of pain was higher in Europoids than in Negroids and Mongoloids before and after treatment. The temperature pain threshold and electrical pain threshold were not significantly different between subjects with or without religious background(before analgesic therapy:F=251.119,P=0.130,F=275.861,P=0.059;after analgesic therapy:F=308.531,P=0.086,F=180.062,P=0.078). Also,there was no interaction between the racial and religious backgrous in terms of temperature pain threshold and electrical pain threshold(F=13.553,P=0.091,F=22.001,P= 0.089;after analgesic therapy:F=4.624,P=0.089,F=15.935,P=0.094).</p><p><b>CONCLUSIONS</b>The threshold of pain differs among individuals with different racial background:it is highest in Europoids,followed by Negroids and Mongoloids. It shows no obvious difference in people with different religious backgrounds.</p>


Subject(s)
Adolescent , Adult , Analgesia , Analgesics , Anesthesia, General , Humans , Isoxazoles , Male , Pain Measurement , Pain Threshold , Pain, Postoperative , Religion , Young Adult
10.
Article in Chinese | WPRIM | ID: wpr-440188

ABSTRACT

Coupled magnetic nanoparticles in the microcapsule structure, such as magnetic microcapsules, can be delivered in specific organism or tissues under magnetic field exposure. Thus, the microcapsules can achieve active targeting functions by manipulat-ing the magnetic field. Based on the magnetic microcapsules, the antitumor drugs can also be loaded to realize magnetic response, which gives microcapsules sustained and controlled release advantages. To date, the drug microcapsules carrying magnetic nanoparti-cles have become promising novel delivery carriers for the treatment of tumor diseases. This paper mainly reviews the method of prepa-ration of the magnetic nanoparticle-coupled microcapsules, including liposomes, polyelectrolyte microcapsules, and polymer micro-spheres. The basic research progress of these microcapsules as anticancer drug carriers for the tumor therapy was also reviewed.

11.
Article in Chinese | WPRIM | ID: wpr-451166

ABSTRACT

This study was aimed to observe the effect of Sang-Ji (SJ) mixture in the treatment of Toll-like receptor 4 (TLR-4) expression on peripheral blood monocytes (PBMCs) in hypertensive patients. A total of 60 cases of hyper-tensive cases with overabundant liver-fire and phlegm syndrome were randomly divided into the treatment group and the control group with 30 cases in each group. Both groups received Felodipine and/or Benazapril treat-ment. The treatment group was added with SJ mixture. The observation duration was 28 days. The detection was made on indicators such as blood pressure , traditional Chinese medicine ( TCM ) syndrome scores and TLR-4 ex-pression on PBMCs before and after treatment. The results showed that after treatment, the blood pressure, TCM syndrome scores and TLR-4 expression on PBMCs of both groups decreased compared with that of the pretreat-ment . Changes on TCM syndrome scores and TLR-4 expression of the treatment group were more significant than that of the control group ( P < 0 . 05 ) . It was concluded that SJ mixture improved clinical symptoms in pa-tients with overabundant liver-fire and phlegm syndrome , decreased TLR-4 expression on PBMCs , in order to inhibit the immune response to a certain extent .

12.
Article in Chinese | WPRIM | ID: wpr-469125

ABSTRACT

Objective To review outcomes in randomized controlled trials comparing labetalol with other anti hypertensives/placebo/no drug for mild to moderate hypertension in pregnancy.Methods We searched PubMed,China Knowledge Resource Integrated Database and VIP Database and performed a meta analysis of randomized controlled trials of labetalol for hypertension in pregnancy.Data were entered into RevMan software for analysis [relative risk (RR) and its 95% confidence interval (CI)].Results Seven studies were included in the meta-analysis.Four trials (553 women) compared labetalol with methyldopa for mild to moderate hypertension in pregnancy.Labetalol reduced the risk of severe hypertension (RR=0.52,95%CI:0.31-0.88) and proteinuria (RR=0.57,95%CI:0.36 0.91).The incidence of preterm birth and small-for-gestational-age infants was similar between these two groups.Five trials (720 women) compared labetalol with placebo/no drug for mild to moderate hypertension in pregnancy.Labetalol reduced the risk of severe hypertension (RR=0.29,95%CI:0.16-0.53) and proteinuria (RR-0.73,95%CI:0.56-0.95) and showed no effect on preterm birth and small-for-gestational-age infants.Conclusions The results support the use of labetalol for mild to moderate hypertension in pregnancy.Labetalol is more effective in treating hypertension than methyldopa.However,due to the quality of the included studies,clinical effects of labetalol need to be evaluated in high quality randomized controlled trials.

13.
Chinese Journal of Oncology ; (12): 85-91, 2014.
Article in Chinese | WPRIM | ID: wpr-328977

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the role of 2-deoxy-D-glucose (2-DG) modified supermagnetic iron oxide nanoparticles (SPIO) (γ-Fe2O3@DMSA-DG NPs) in tumor detection as a magnetic resonance imaging (MRI) contrast agent.</p><p><b>METHODS</b>γ-Fe2O3@DMSA-DG NPs was prepared. The degree of A549 cells targeted absorption of γ-Fe2O3@DMSA-DG NPs was detected by Prussian blue staining, colorimetric assay, T2W and multi-echo sequence MRI. γ-Fe2O3@DMSA NPs was used as a control agent, and free D-glucose as a competitive inhibitor. Human lung adenocarcinoma A549 xenograft tumor was prepared in nude mice. Sterile aqueous suspension of γ-Fe2O3@DMSA NPs or γ-Fe2O3@DMSA-DG NPs was injected into the tail vein of nude mice. Before and 6, 12, 24, 48 h after injection, MRI imaging of the mice was performed. T2 signal intensity of the tumor, brain, liver and thigh skeletal muscles, and T2 values of the tumors were measured.</p><p><b>RESULTS</b>The average diameter of the particles was about 10 nm, and there were no significant differences between the diameters of γ-Fe2O3@DMSA NPs and γ- Fe2O3@DMSA-DG NPs. The IR spectra showed the C-N retractable vibration peak at γ-Fe2O3@DMSA-DG NPs surface, indicating that 2-DG was conjugated to the γ-Fe2O3@DMSA NPs. The Prussian blue staining, colorimetric assay, MRI T2 signal intensity and T2 values revealed that γ-Fe2O3@DMSA-DG NPs were significantly more absorbed by A549 cells at growth peak than γ-Fe2O3@DMSA NPs, and the absorption of γ-Fe2O3@DMSA-DG NP was inhibited by free D-glucose. The results of in vivo examination showed that before and at 6, 12, 24, 48 h after injection of γ-Fe2O3@DMSA-DG NPs, the mean T2 signal intensities of the tumors were (326.00 ± 16.26)s, (276.40 ± 5.13)s, (268.40 ± 30.58)s, (240.40 ± 25.93)s, (262.20 ± 30.04)s, respectively, and the T2 values of the tumors were (735.80 ± 20.93) ms, (645.80 ± 69.58) ms, (615.00 ± 124.61) ms, (570.60 ± 67.78) ms, and (537.80 ± 105.29) ms, respectively. However, before and at 6, 12, 24, 48 h after injection of γ-Fe2O3@DMSA NPs, the mean T2 signal intensities of the tumors were (335.60 ± 4.93)s, (290.80 ± 5.93)s, (273.40 ± 15.08)s, (327.40 ± 16.65)s, and (313.20 ± 20.45)s, respectively, and T2 values were (686.00 ± 21.44)ms, (617.80 ± 69.93)ms, (645.20 ± 85.89)ms, (669.40 ± 13.72)ms, and (608.80 ± 61.90)ms, respectively. The T2 signal intensity and T2 value of the tumors were not declined generally after injection. The liver T2 signal intensity was decreased after injection of both γ-Fe2O3@DMSA-DG NPs and γ-Fe2O3@DMSA NPs, and T2 signal intensity of the brain and muscle did not show significant changes.</p><p><b>CONCLUSIONS</b>γ-Fe2O3@DMSA-DG NPs has an ability to target glucose receptors overexpressed in tumors, and may serve as a MRI contrast agent for tumor detection.</p>


Subject(s)
Adenocarcinoma , Diagnosis , Metabolism , Pathology , Animals , Cell Line, Tumor , Colorimetry , Contrast Media , Chemistry , Pharmacokinetics , Deoxyglucose , Chemistry , Pharmacokinetics , Ferric Compounds , Chemistry , Pharmacokinetics , Humans , Image Enhancement , Lung Neoplasms , Diagnosis , Metabolism , Pathology , Magnetic Resonance Imaging , Magnetite Nanoparticles , Mice , Mice, Inbred BALB C , Mice, Nude , Neoplasm Transplantation , Particle Size
14.
Journal of Medical Postgraduates ; (12): 1060-1064, 2014.
Article in Chinese | WPRIM | ID: wpr-459223

ABSTRACT

Objective Preoperative autologous blood donation ( PABD) may reduce the need for allogeneic blood , but it may also cause a short massive blood loss in pregnant women , and its fetal and maternal safety has to be adequately assessed .This study was to evaluate the feasibility and safety of PABD for pregnant women and their fetuses . Methods A prospective observational study was conducted among the women who met the inclusion criteria and gave birth in Nanjing Drum Tower Hospital between January and December 2013 .According to the clinical validation of risk stratification criteria for peripartum hemorrhage of California 2013 , the ca-ses were classified into a low-, a medium-, and a high-risk group.Data on blood donation procedures , obstetric outcomes, and blood transfusions were collected after delivery for analysis . Results Totally, 92 pregnant women accomplished 115 blood donations .The median volumes of the donated blood were 300, 300, and 400 mL in the low-, medium-, and high-risk groups, respectively ( P>0.001).There were no significant changes in HR , SBP and SpO2 during the blood donation procedures (P>0.05) except for the fall of diastolic blood pressure by an average of 3.4 mmHg (P0.05), which were similar to those in the cases who donated twice , with no significant differences before and after the donation (P>0.05). Homologous blood transfusion was performed for 5 cases (17.9%) in the high-risk group, with the volume of blood loss >2000 mL in all the cases.All the newborns survived without asphyxia and there was no perinatal death . Conclusion PABD can provide timely autologous whole blood donation for pregnant women .Under strict management , PABD is feasible and safe for pregnant patients who are at a high risk for massive blood loss during delivery or have a rare type of blood no readily available .

15.
Article in English | WPRIM | ID: wpr-270539

ABSTRACT

<p><b>OBJECTIVE</b>To assess the effect of atorvastatin on lipopolysaccharide (LPS)-induced TNF-α production in RAW264.7 macrophages.</p><p><b>METHODS</b>RAW264.7 macrophages were treated in different LPS concentrations or at different time points with or without atorvastatin. TNF-α level in supernatant was measured. Expressions of TNF-α mRNA and protein and heme oxygenase-1 (HO-1) were detected by ELISA, PCR, and Western blot, respectively. HO activity was assayed.</p><p><b>RESULTS</b>LPS significantly increased the TNF-α expression and secretion in a dose- and time-dependent manner. The HO-1 activity and HO-1 expression level were significantly higher after atorvastatin treatment than before atorvastatin treatment and attenuated by SB203580 and PD98059 but not by SP600125, suggesting that the ERK and p38 mitogen-activated protein kinase (MAPK) pathways participate in regulating the above-mentioned effects of atorvastatin. Moreover, the HO-1 activity suppressed by SnPP or the HO-1 expression inhibited by siRNA significantly attenuated the effect of atorvastatin on TNF-α expression and production in LPS-stimulated macrophages.</p><p><b>CONCLUSION</b>Atorvastatin can attenuate LPS-induced TNF-α expression and production by activating HO-1 via the ERK and p38 MAPK pathways, suggesting that atorvastatin can be used in treatment of inflammatory diseases such as sepsis, especially in those with atherosclerotic diseases.</p>


Subject(s)
Adjuvants, Immunologic , Pharmacology , Animals , Atorvastatin , Enzyme Activation , Heme Oxygenase-1 , Genetics , Metabolism , Heptanoic Acids , Pharmacology , Hydroxymethylglutaryl-CoA Reductase Inhibitors , Pharmacology , Lipopolysaccharides , Pharmacology , Macrophages , Membrane Proteins , Genetics , Metabolism , Mice , Pyrroles , Pharmacology , Tumor Necrosis Factor-alpha , Metabolism
16.
Article in Chinese | WPRIM | ID: wpr-442265

ABSTRACT

In order to study life science,the cell culture device is the foundation contributing to the research.With the development of technology in the area,cell culture devices have been significantly improved,and different kinds of devices were designed and novel devices also have been invented.This article provides an overview of the history and present situation of the cell culture devices.The future trend is prospected.

17.
Article in Chinese | WPRIM | ID: wpr-442178

ABSTRACT

Objective To evaluate the effects of gestational weight gain(GWG) in different prepregnant body mass index (BMI) women on perinatal outcomes and to provide evidences for gestational weight management protocol.Methods Totally,2409 healthy singleton pregnant women accepted regular prenatal examinations in Nanjing Drum Tower Hospital from January 2009 to April 2010 were recruited in this study.They were divided into three groups according to pre-pregnant BMI,which were low BMI group (BMI<18.5),normal BMI group (BMI 18.5-) and high BMI group (BMI≥24.0).According to GWG,the difference between pre-delivery maximal weight and prepregnant weight,the low and normal BMI women were divided into <10 kg,10 kg-and ≥15 kg GWG subgroups,and the high BMI women were divided into <5 kg,5 kg-,10 kg and ≥15 kg GWG subgroups.Data including gestational age,delivery modc,newborns' birth weight,Apgar score and incidences of gestational complications,such as hypertensive disorders complicating pregnancy (HDP),gestational diabetes mellitus (GDM),macrosomia,fetal growth restriction (FGR) and preterm birth,were recorded.Analysis of variance,Student-Newman Keuls,Chi-square test and Fisher exact test were applied for statistics.Results (1) Among the 2409 women,the percentages of low,normal and high BMI groups were 18.5% (n=445),69.9% (n=1685) and 11.6% (n=279),respectively.The incidences of HDP,GDM,macrosomia and caesarean delivery in high BMI group were 12.9% (n=36),17.9% (n=50),13.6% (n=38) and 52.3% (n=146),respectively,higher than those in low BMI group [3.4% (n=15),4.3 % (n=19),3.8% (n=17) and 25.8%(n=115),x2 =23.8,37.1,23.5 and 50.2,P<0.05] and those in normal BMI group [5.5% (n=92),7.8% (n=132),7.8% (n=132)and 31.6% (n=532),x2=21.8,29.0,10.1 and 3.4,P<0.05].(2) In normal BMI group,the rates of FGR and preterm birth in GWG <10 kg subgroup were 3.5% (4/115) and 8.7% (10/115),higher than those in GWG 10 kg-subgroup [0.7%(4/548) and 3.3%(18/548),x2=6.0 and 6.9,P<0.05] and GWG ≥15 kg subgroup [(0.8 % (8/1022) and 3.6% (37/1022),x2=7.2 and 6.7,P<0.05].The rates of macrosomia and cesarean delivery in GWG ≥15 kg subgroup were 10.7% (109/1022) and 34.5% (353/1022),higher than those in GWG<10 kgsubgroup [3.5% (4/115) and 32.2% (37/115),x2=6.0 and 63.0,P<0.05] and GWG 10 kg subgroup [3.5% (19/548) and 25.9% (142/548),x2=24.7 and 31.0,P<0.05].(3) In high BMI group,the incidences of all pregnancy complications and perinatal outcomes did not show statistical significance among the four GWG subgroups (P>0.05).Conclusions High prepregnant BMI is a high risk factor of pregnancy complications.It is suggested that normal BMI women should control GWG at 10-15 kg to lower the incidences of pregnancy complications.

18.
Chinese Journal of Oncology ; (12): 566-571, 2013.
Article in Chinese | WPRIM | ID: wpr-267499

ABSTRACT

<p><b>OBJECTIVE</b>To compare the differences in uptake of 2-deoxy-D-glucose (2-DG)-conjugated nanoparticles between breast carcinoma MDA-MB-231 cells with high metabolism and breast fibroblasts with normal metabolism, and investigate the feasibility of using the coated nanoparticles as a MRI-targeted contrast agent for highly metabolic carcinoma cells.</p><p><b>METHODS</b>The γ-Fe2O3@DMSA-DG was prepared. The glucose metabolism level of both cell lines was determined. The targeting efficacy of γ-Fe2O3@DMSA-DG and γ-Fe2O3@DMSA NPs to breast carcinoma MDA-MB-231 cells and breast fibroblasts at 10 min, 30 min, 1 h and 2 h was measured with Prussian blue staining and UV colorimetric assay. MRI was performed to visualize the changes of T2WI signal intensity.</p><p><b>RESULTS</b>Prussian blue staining showed more intracellular blue granules in the MDA-MB-231 cells of γ-Fe2O3@DMSA-DG NPs group than that in the γ-Fe2O3@DMSA NPs group, and the γ-Fe2O3@DMSA-DG uptake was greatly competed by free D-glucose. As revealed by UV colorimetric assay, MDA-MB-231 cells also showed that the cellular iron amount of γ-Fe2O3@DMSA-DG group was significantly higher than that of the γ-Fe2O3@DMSA group and γ-Fe2O3@DMSA-DG + D-glucose group, statistically with a significant difference between them. MRI showed that the signal intensity of γ-Fe2O3@DMSA-DG group was decrease significantly, the T2 signal intensity was decreased by 10.5%, 37.5%, 72.9%, 92.0% for 10 min, 30 min, 1 h and 2 h, respectively. In contrast, the signal intensity did not show obvious decrease in the γ-Fe2O3@DMSA-DG group, the T2 signal intensity was decreased by 8.5%, 11.4%, 32.0%, 76.7% for 10 min, 30 min, 1 h and 2 h, respectively. However, HUM-CELL-0056 cells did not produce apparent difference for positive staining in the γ-Fe2O3@DMSA-DG group, γ-Fe2O3@DMSA group and γ-Fe2O3@DMSA-DG+D-glucose group, and the signal intensity also did not produce apparent difference.</p><p><b>CONCLUSIONS</b>γ-Fe2O3@DMSA-DG has good targeting ability to highly metabolic breast carcinoma (MDA-MB-231) cells. It is feasible to serve as a specific MRI-targeted contrast agent for highly metabolic carcinoma cells, and deserves further studies in vivo.</p>


Subject(s)
Breast Neoplasms , Metabolism , Pathology , Cell Line, Tumor , Cells, Cultured , Colorimetry , Methods , Contrast Media , Pharmacokinetics , Deoxyglucose , Chemistry , Pharmacokinetics , Female , Ferric Compounds , Chemistry , Pharmacokinetics , Fibroblasts , Cell Biology , Metabolism , Glucose , Metabolism , Humans , Iron , Metabolism , Magnetic Resonance Imaging , Methods , Nanoconjugates , Chemistry , Particle Size , Succimer , Chemistry , Pharmacokinetics
19.
Chinese Medical Journal ; (24): 12-15, 2012.
Article in English | WPRIM | ID: wpr-333549

ABSTRACT

<p><b>BACKGROUND</b>The success and complication rates of atrial fibrillation (AF) ablation may be related to regional differences in left atrial (LA) wall thickness. The purpose of this study was to investigate the transmural LA wall thickness in various regions.</p><p><b>METHODS</b>We measured LA wall thickness in 36 human heart specimens using calipers at three planes including left pulmonary veins (PVs) vestibule plane, right PVs vestibule plane and the middle plane between the two. In each plane, eight points were selected, including superior, middle and inferior levels at anterior and posterior wall, roof and bottom.</p><p><b>RESULTS</b>The anterior and posterior wall thickness displayed gradient from superior to inferior level (anterior wall: (2.73 ± 1.01) mm, (2.08 ± 0.91) mm and (1.54 ± 0.69) mm; posterior wall: (1.74 ± 0.68) mm, (1.48 ± 0.39) mm and (1.27 ± 0.42) mm). At the roof, LA wall thickness was thickest in middle plane ((2.01 ± 1.02) mm) and was thinnest in left PVs vestibule plane ((1.29 ± 0.41) mm). The posterior wall thickness in left PVs vestibule plane was thinner than in the other two planes (P < 0.05 - 0.001), and was thinner in right PVs vestibule plane than in middle plane (P < 0.01 - 0.001). Whereas in anterior wall, the wall thickness in left PVs vestibule plane was thicker than in middle and right PVs vestibule plane.</p><p><b>CONCLUSIONS</b>Significant variations exist for mean LA wall thickness at different regions which are often targeted during circumferential pulmonary venous ablation (CPVA). Appreciating these differences may have significant implications in catheter ablation of AF.</p>


Subject(s)
Adult , Aged , Aged, 80 and over , Atrial Fibrillation , General Surgery , Catheter Ablation , Female , Heart Atria , General Surgery , Humans , In Vitro Techniques , Male , Middle Aged
20.
Article in Chinese | WPRIM | ID: wpr-267583

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effect of propofol at doses for different anesthesia depths on γ-aminobutyric acid (GABA) in different cerebral regions at propofol uptake equilibrium in dogs.</p><p><b>METHODS</b>Twelve 12-18-month-old healthy hybrid dogs weighing 10-12 kg were randomly divided into light anesthesia group (n=6) and deep anesthesia group (n=6) with a single bolus dose of propofol (5.5 and 7.0 mg/kg, respectively) completed in 15 s followed by intravenous propofol infusion at a constant rate (55 and 70 mg·kg(-1)·h(-1), respectively). Blood samples (2 ml) were taken from the internal carotid artery and jugular vein to measure plasma propofol concentrations 50 min after the start of the infusion. The dogs were then sacrificed and tissues were taken from different brain regions and the cervical cord to measure GABA concentrations using high-pressure liquid chromatography (HPLC).</p><p><b>RESULTS</b>The plasma propofol concentrations in internal carotid artery and jugular vein were similar in both light anesthesia group (3.00 ± 0.31 and 3.10 ± 0.51 µg/ml, respectively, P>0.05) and deep anesthesia group (6.41 ± 0.05 and 6.40 ± 0.11 µg/ml, respectively, P>0.05). GABA concentrations in the brain regions were significantly higher in deep anesthesia group than in light anesthesia group (P<0.05). The dorsal thalamus and hypothalamus showed greater GABA variations [(83.83 ± 2.230%) and (85.83 ± 1.72)%] compared to other brain regions at different anesthesia depths (P<0.05).</p><p><b>CONCLUSIONS</b>In both groups, plasma propofol concentrations in the internal carotid artery and internal jugular vein reach equilibrium at 50 min of propofol infusion. The variation of GABA is associated with the anesthesia depth of propofol, and GABA variation in the dorsal thalamus and hypothalamus plays an important role in propofol anesthesia.</p>


Subject(s)
Anesthetics, Intravenous , Pharmacokinetics , Animals , Brain , Metabolism , Dogs , Female , Male , Propofol , Blood , Pharmacokinetics , gamma-Aminobutyric Acid , Metabolism
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