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Objective:To investigate the current status of primiparas′ postpartum fatigue and paternal involvement, and to explore the relationship between primiparas′ postpartum fatigue and paternal involvement, and to provide reference basis for developing targeted intervention measures to alleviate postpartum fatigue of primiparas.Methods:A cross-sectional survey was conducted on 347 primiparas from Affiliated Hospital of Yangzhou University, Yangzhou Maternal and Child Health Care Hospital from September to December 2020 by convenience sampling. The survey instruments included the general information questionnaire, the Parenting Alliance Inventory (PAI), and the Postpartum Fatigue Scale (PFS).Results:The total score of PAI was (86.51 ± 12.07) points, and the level of paternal involvement was high. The total score of PFS was (16.68 ± 4.12) points. 95.97% (333/347) of primiparas had varying degrees of postpartum fatigue. There was a significant negative correlation between paternal involvement and primiparas′ postpartum fatigue ( r=-0.327, P<0.01). The results of multiple stratified regression analysis showed that paternal involvement was included in the influencing factor model of primiparas′ postpartum fatigue, which could independently explain 9.7% variation of primiparas′ postpartum fatigue. Conclusions:The higher level of paternal involvement could predict the lower level of primiparas′ postpartum fatigue. Medical staff should pay attention to the participation level of the spouses of primiparas in childcare, and improve the participation level of the spouses of primiparas in scientific ways to alleviate the postpartum fatigue of primiparas.
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Objective To analyze the growth and development of children aged 6 to 14 years in Yangzhou City, Jiangsu Province, and to provide a basis for the evaluation of the growth and development and health care of local children. Methods In November 2020, a stratified cluster sampling method was used to investigate the physical development of 11 026 children aged 6 to 14 years in 9 primary and middle schools in Yangzhou. The results were compared with the current national standards in China. Results The BMI levels of children of all ages from 6 to 14 years in Yangzhou were higher than the national levels (t=6.947~20.093, P＜0.01). The heights of boys and girls were relatively close at pre-school age (t=1.348, P=0.025). Boys were slightly taller than girls at the ages of 6 to 8 and 10 to 11 years. At the ages of 9 and 12, girls were slightly taller than boys. Adolescent boys were significantly taller than girls. (t=15.161, P＜0.01). Conclusion In Yangzhou City, the height and weight development of students aged 6-14 years conform to the general growth and development trend, and their BMI is generally higher than the national average level.
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Laccases are enzymes belonging to the group of multi-copper oxidases. These enzymes are widely distributed in insects, plants, fungi and bacteria. In general, laccases can oxidize an exceptionally high number of substrates, so they have broad applications in textile, pulp, food and the degradation of lignin. However, low yield, low activity and thermo-instability of laccase in nature limit the application of laccase. High efficient heterologous expression of the protein is an effective way for solving this problem. Here, we summarize the research advances of heterologous expression of eukaryote-origin laccases. We focus on the overexpression of eukaryote-origin laccases using different expression system and the method for improving the production yield and enzyme activity in yeast cells. Information provided in this review would be helpful for researchers in the field.
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Objective To explore short term curative effects and adverse reactions of two different kinds of intraperitoneal hyperthermic chemotherapy (IPHC) drugs in the treatment of advanced ovarian cancer after cytoreductive surgery.Methods 76 patients with advanced ovarian cancer in the Second Affiliated Hospital of Zhengzhou University from July 2013 to November 2015 were divided into two groups:single-drugs group of 36 patients (IPHC with 5-fluorouracil after cytoreductive surgery combined with intravenous chemotherapy),combined treatment group of 40 patients(IPHC with 5-fluorouracil and carboplatin after cytoreductive surgery combined with intravenous chemotherapy).Short term curative effects,postoperative clinical indicators and adverse reactions of chemotherapy in two groups were compared and analyzed.Results The CA125 effective rates in single-drugs and combined treatment group were 86.11％ and 95％,and the difference showed statistically significant differences (P ＞ 0.05).The ascites remission rates in single-drugs and combined treatment group were 97.22％ and 97.5％,and the difference between two groups showed no statistically significant differences (P ＞ 0.05).Adverse drug reactions showed statistical difference in distribution of the bone marrow,liver damage and gastrointestinal toxicity.No statistical difference were found between the two groups in terms of distribution of renal damage and cardiovascular system damage.Conclusion IPHC after cytoreductive surgery in the treatment of advanced ovarian cancer is an effective means as adjuvant chemotherapy.The short-term curative effect of combined treatment group is obvious and adverse reactions can be tolerated.IPHC can be applied according to the patient's specific clinical situation.
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Objective To study the expression of c -Met protein in gastrointestinal stromal tumor(GIST) and to evaluate its clinicopathological significance.Methods The immunohistochemical technique,EnVision method was used to evaluate the expression of c -Met in 105 cases of GISTs.Results c -Met protein positive rate in GISTs was 9.52%(10 /105),its expression rate was significantly higher in GISTs with >10 /50HPF mitotic activity(P 5cm,moderate or high -risk,or mass located outside the stomach,but the difference was not statistically significant(P >0.05 ).Conclusion c -Met protein expression may related with risk of GISTs.We think that c -Met is worthy of further study for its potential usage as a evaluation indicators of GISTs clinicobiological behavior.
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<p><b>OBJECTIVE</b>To study the expression of fascin-1 protein in breast cancer and to evaluate its correlation with clinicopathologic features of the tumor.</p><p><b>METHODS</b>Immunohistochemical EnVision method was performed to evaluate the expression of fascin-1 in 23 cases of normal breast tissues, 69 cases of benign breast lesions, 58 cases of usual ductal hyperplasia (UDH), 61 cases of ductal carcinoma in situ (DCIS) and 221 cases of breast cancer from March 2007 to December 2011.</p><p><b>RESULTS</b>Fascin-1 protein expression rates in normal breast tissues, benign breast lesions, UDH, DCIS and breast cancer were 100.0% (23/23), 89.9% (62/69), 13.8% (8/58), 19.7% (12/61), and 42.1% (93/221), respectively. Fascin-1 expression in normal breast tissues and benign breast lesions was significantly higher than those in UDH, DCIS and breast cancer (P < 0.01); Fascin-1 expression in breast cancer was significantly higher than those in UDH and DCIS (P < 0.01). There was a tendency of increased fascin-1 expression in DCIS compared to UDH, but the difference was not statistically significant (P > 0.05). Fascin-1 positive rates in patients with DCIS grade III (26.8%, 11/41) was significantly higher than that in patients with DCIS grade I-II (1/20, P < 0.05). Fascin-1 protein expression in breast cancer increased with increasing histologic grade and clinical stage (P < 0.01). Fascin-1 protein expression was also significantly higher in tumors with negative estrogen receptor (ER) and progestone receptor (PR) status and > 3 axillary lymph node metastases compared to tumors that were ER and PR positive and ≤ 3 axillary lymph node metastases (P < 0.01 and P < 0.05, respectively). Logistic regression analysis showed that fascin-1 expression correlated positively with high clinical stage (OR = 1.568, 95% CI = 1.029-2.387, P < 0.05) , but negatively with ER expression (OR = 0.149, 95% CI = 0.079-0.281, P < 0.01) .</p><p><b>CONCLUSIONS</b>Fascin-1 is highly expressed in normal breast tissues and benign breast lesions, suggesting that it may be a biological marker of mature mammary ductal epithelium. Fascin-1 protein expression shows a significantly increasing trend from UDH, DCIS to invasive breast cancer, suggesting that fascin-1 plays an important role in breast carcinogenesis and may be a potential target for therapy.</p>
Subject(s)
Female , Humans , Axilla , Breast , Metabolism , Pathology , Breast Neoplasms , Metabolism , Pathology , Carcinoma in Situ , Metabolism , Pathology , Carcinoma, Ductal, Breast , Metabolism , Pathology , Carrier Proteins , Metabolism , Estrogen Receptor alpha , Metabolism , Hyperplasia , Metabolism , Lymph Nodes , Metabolism , Lymphatic Metastasis , Microfilament Proteins , Metabolism , Receptors, Estrogen , MetabolismABSTRACT
BACKGROUND: Some studies have showed that after indirect co-culture, bone marrow mesenchymal stem cells can differentiate into myocardial cells and hepatocypte-like cells. OBJECTIVE: To investigate the possibility of human umbilical cord blood mesenchymal stem cells (UCB-MSCs) to differentiate into hepatocytes by co-culture with human hepatocyte line LO2 in vitro.METHODS: Full-term umbilical cord blood samples were obtained sterilely. The UCB-MSCs were isolated by density gradient centrifugation and directly adherence growth, then passaged with trypsin digestion at 80% cell fusion. By utilizing cell culture plate insets with microporous membrane combined with 6-well plate, the LO2-/UCB-MSCs co-culture system was established. UCB-MSCs were plated into the wells of 6-well plate at a density of 1×10~7/L. LO2 cells were plated into the cell culture plate insert at a density of 1×10~5/L. UCB-MSCs were plated in both layers in the control group. Surface markers of adhered cells were detected by flow cytometry. Morphological changes of UCB-MSCs were observed by inverted phase contrast microscopy. mRNA expression was detected by reverse transcriptase PCR. RESULTS AND CONCLUSION: HUCB MSCs expressed CD44 and CD29 strongly, but CD34 and CD45 were expressed negatively. After 5 days, fusiform-shaped cells were reduced in the co-culture group; while, the time passing by, cells shaped irregular round or polygonal were increased, which were similar to hepatocytes. At 4 weeks after culture, UCB-MSCs were still fusiform-shaped in the control group. At day 5 after culture, alpha fetoprotein mRNA expressed positively, but other expressed negatively in the co-culture group; at day 14 after culture, cytokeratin-19 mRNA and albumin mRNA expressions were observed; moreover, with the time passing by, the expression of albumin mRNA was increased, but the expression of alpha fetoprotein-19 mRNA was decreased. Antigenic expressions in the control group were negative. This suggested that UCB-MSCs could differentiate into hepatocypte-like cells by co-culture with human hepatocyte line LO2 in vitro.
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Objective:To investigate the inhibitory effect of antisense human telomerase RNA(hTR) gene on implanted hepatocellular carcinoma in nude mice.Methods: HepG2 cells were subcutaneously inoculated into BALB/c nude mice at the axilla to establish implanted hepatocellular carcinoma model.The retrovirus plasmid containing antisense telomerse RNA(PLXSN-hTR-BamHⅠ) was injected into the tumor(0.2 ml every time,5 times).Retrovirus plasmid containing sense telomerase RNA(PLXSN-hTR-EcoRⅠ) and normal saline were inoculated as control groups.Tumor volume was determined and the inhibitory rate was calculated.Tumor necrosis was observed by histological analysis and cell apoptosis was analyzed by terminal transferase dUTP nick end labeling(TUNEL).Results: Tumor growth in antisense hTR group was significantly inhibited compared with the two control groups.The tumor inhibitory rate(26.78%) of antisense hTR group was significantly higher than that of sense hTR group(1.93%,P