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Cardiovascular disease (CVD) is the leading cause of mortality and healthy life expectancy loss, ranking first in causing the global burden of disease. In addition to the traditional CVD risk factors, such as hypertension and diabetes, environmental chemical pollutants may also play a role in the development of CVD. This paper summarizes the evidence regarding the relation of exposures to metal or metalloid and persistent organic pollutants with risk for CVD and introduces the research progress in the relation between the exposures to two environmental chemical pollutants and CVD risk. The study aims to provide scientific evidence for the effective prevention of CVD through the management of chemical pollutants in environment.
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Humains , Maladies cardiovasculaires , Polluants organiques persistants , Métalloïdes , Hypertension artérielle , Polluants environnementauxRésumé
The clinical applications of acrosin activity are limited. We analyzed 61 578 male partners in infertile couples who visited the outpatient department of the Reproductive and Genetic Hospital of CITIC-Xiangya (Changsha, China) between August 2014 and December 2019 to determine the reference ranges and thresholds for acrosin activity in infertile Chinese men; to determine whether correlations exist between acrosin activity and age, sperm concentration, sperm morphology, or sperm motility; and to evaluate whether acrosin activity could serve as an effective prognostic indicator for choosing between in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in the clinic. The cut-off value for the normal reference range of acrosin activity for male partners in infertile couples was 24.78 μIU per 106 sperm. There was no significant association between acrosin activity and age, sperm concentration, semen volume, total sperm count, progressive motility, or total motile spermatozoa. A weak positive correlation was found between acrosin activity and normal sperm morphology. There was a statistically significant difference in abnormal acrosome morphology between the group with high acrosin activity (>24.78 μIU per 106 sperm) and the group with low acrosin activity (<24.78 μIU per 106 sperm). The group with a low IVF fertilization rate had a high index of abnormal acrosomal morphology at 21.2%, while the group with a high IVF fertilization rate had a low index of 0.2%. At an acrosin activity of <24.78 µIU per 106 sperm, in one cycle of the same patient, the fertilization rate, normal fertilization rate, and good-quality embryo rate for ICSI were significantly higher than those for IVF. Therefore, the most promising application of acrosin activity could be in the selection of ICSI over IVF for infertile male patients with complete fertilization failure or a low fertilization rate.
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@#Abstract: Objective To master the condition of cockroach population distribution, seasonal dynamics, cockroach density for different habitat, and to provide a basis for developing cockroach control strategies. Methods Six types of surveillance sites, including residential areas, hotels, restaurants, supermarkets, hospitals and farm product markets, were set up in 14 cities in Liaoning to monitor cockroaches using the sticky-trap method. The cockroach surveillance data from vector surveillance sites in fourteen cities of Liaoning Province in 2021 were collected and statistically analyzed using Excel 2010 and SPSS 23.0 software. The density and species composition of cockroaches were analyzed, and the density difference and seasonal dynamics trend of cockroaches in different habitats were compared. Results A total of 3 031 cockroaches were captured in 2021, of which Blattella germanica accounted for 94.66% (2 869/3 031) and was the dominant population. The total density of cockroaches was 0.230 0 cockroaches per sheet (3 031/13 234) and the total infestation rate of cockroaches was 5.59% (562/10 052). The density and infestation rate of cockroaches in different habitats were in the order of farm product markets, restaurants, and hotels and the difference in infestation rate between habitats was statistically significant (χ2=168.327, P<0.05). The seasonal dynamics trend of cockroach density and disoperation rate showed a unimodal curve, and the peaks were distributed in July. The seasonal dynamics of cockroach density and disoperation rate in different habitats showed a unimodal curve in the habitats of farm product markets, supermarkets, hotels, hospitals and residential areas all, while the habitats of restaurants were close to a double peak curve. Conclusions B. germanica is the dominant species of cockroaches in Liaoning Province in 2021. Compared with 2020 the density and disoperation rate of cockroach in 2021 showed a slight downward trend, and the seasonal dynamics trend of cockroach density and disoperation rate showed a unimodal curve. The farm product markets are the key places for cockroach prevention and control. According to the seasonal fluctuation trends in cockroach density and infestation rate in different habitats, comprehensive prevention and control measures should be taken before the peak periods to reduce cockroach density and control diseases.
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The system of compassionate drug use in China is in the preliminary exploration stage, and the formal management methods and specific implementation rules have not been promulgated, which needs to be further optimized and perfected. Japan realizes the advanced use of unapproved drugs by expanded access clinical trial system, and makes clear provisions on information acquisition, target patient, informed consent, subject of application, implementation plan, handling of refusal to administer medication, drug expenses, implementation deadline, compensation for accidental damages, post-approval data review after expanded access clinical trials. When the enterprise refuses to give drugs because of the “legitimacy reasons of the system”, the attending physician can also apply to the Ministry of Health, Labor and Welfare, and the Ministry of Health, Labor and Welfare will conduct the licensing evaluation to maximize the drug for patients. This “refusal to administer” reprocessing is a unique regulation in Japan, which ensures the accessibility of drugs to the greatest extent possible. Based on the analysis of the expanded access clinical trial system in Japan, it is found that our country could further build the information platform for compassionate drug use, play the leading role of physicians, protect the interests of enterprises, pay attention to the ethical review, and make drug cost payment problems further clear in order to improve and optimize the system of compassionate drug use.
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Cognitive impairment is a common dysfunction after central nervous system disease or injury, which seriously affects the daily life of patients and brings heavy economic burdens to the family and society. Neurofeedback training (NFT) based on electroencephalography (EEG) is a non-invasive method of neuroregulation, which can improve cognitive function and behavior by autonomously adjusting brain function through feedback. This paper reviews the application of EEG signal-based neurofeedback training in cognitive rehabilitation, and discusses the current problems and future development trends in this field, so as to provide new ideas for clinical research and treatment of cognitive disorders.
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Objective To investigate the effects of CTNND2 knockout on cerebellar neuronal development and motor function in mice, as well as its possible mechanisms. Methods The mice were divided into two groups (n = 10 in each group), all of them were 7 weeks old : wild-type (WT) C57BL/6J mice were treated as control group, and homozygous of CTNND2 knockout (CTNND2 7) mice were treated as experimental group, the genotype of CTNND2 7 mice were detected with PCR. The motor function of two groups were detected by beam walking test, hanging wire test and gait analysis test. The changes of cerebellar Purkinje cells were detected by immunofluorescence staining and Golgi staining. Western blotting was performed to detect the expression levels of synapse-associated proteins phosphorylated synapsin 1 (p-Synl), synapsin 1 (Synl), ELKS and postsynaptic density protein 95(PSD95), as well as phosphoinositide 3-kinase (PI3K), phosphorylated protein kinase B (p-Akt), protein kinase B (Akt), phosphorylated mammalian target of rapamycin (p-mTOR) and mammalian target of rapamycin (mTOR). Results Compared with the WT mice, except the increase in time to traverse the beam, there was a decrease in the proportion of pass on the beam, or latency to fall from the hanging wire, or score of hanging wire, or fore-stride length and hind-stride length of CTNND2 7 mice. There was also a decrease in numbers of Purkinje cells and its dendritic arborization in cerebellum of CTNND2 7 mice. The ratio of p-Synl/ Synl, p-Akt/Akt and p-mTOR/mTOR, as well as the expression levels of ELKS, PSD95 and PI3K were lower than those of WT mice. Conclusion CTNND2 knockout can affect the number and dendritic architecture of Purkinje cells, as well as synthesis of synapse-associated proteins in cerebellum by down-regulating PI3K/Akt/mT0R signaling pathway, resulting in cerebellar developmental disorder, thereby affecting motor function of mice.
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OBJECTIVE@#To evaluate the effects of two different femoral cortical suspension devices (fixation loop and adjustable loop) on tunnel widening and knee function in patients following anterior cruciate ligament reconstruction for 12 months.@*METHODS@#A total of 60 patients who had undergone anterior cruciate ligament reconstruction were included in this study. According to the length of the loop(n)[n= total length of loop-(total length of femoral tunnel-total length of coarse tunnel)] in the rough bone tunnel, the patients were divided into A (adjustable loop was 0 mm in the coarse bone tunnel), B (fixation loop was greater than 0 mm and less than or equal to 10 mm in the coarse bone tunnel) and C (fixation loop was greater than 10 mm in the coarse bone tunnel) groups, of which 11 cases were in group A, 27 cases in group B and 22 cases in group C. In the three-dimensional reconstruction of the knee joint with multi-slice spiral CT, the widening of the bone tunnel in the three groups was compared. At the same time, IKDC, Lysholm and Tegner scores of the patients in the three groups were compared.@*RESULTS@#There were differences in the widening degree of the femoral canal among groups A, B and C, and the median difference of the widening degree of the femoral tunnel 12 months and immediately after the surgery was A < B < C. The difference of femoral canal widening in group A was significantly different from that in groups B and C (P < 0.05).According to the linear regression the relationship between the difference of the width of the femoral canal and the change of the length (n) of the loop in the coarse canal, it was found that there was a linear relationship between the value of n and the difference of the width of the bone canal. With the increase of the value of n, the difference of the width of the bone canal gradually became larger. The median difference of the width of the middle and superior tunnel was negative, while the median difference of the width of the middle and inferior tunnel was positive. During the follow-up, we found that there were no statistical differences in IKDC, Lysholm and Tegner scores among the three groups one year after surgery (P > 0.05).@*CONCLUSION@#Twelve months after surgery, compared with group B (fixed loop group) and group C (fixed loop group), group A (adjustable loop group) had less bone tunnel widening.In groups A, B and C, as the length of the loop in coarse bone tunnel gradually increased, the width of bone tunnel became more significant. At the end of 12 months follow-up after anterior cruciate ligament reconstruction, the medial and inferior femoral tunnel was significantly wider than immediately after surgery, and the medial and superior femoral tunnel had gradually begun to undergo tendon-bone healing. There was no significant difference in knee function scores among groups A, B, and C in the follow-up 12 months after surgery.
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Humains , Lésions du ligament croisé antérieur/chirurgie , Reconstruction du ligament croisé antérieur , Fémur/chirurgie , Articulation du genou/chirurgie , Tendons , Résultat thérapeutiqueRésumé
Objective:To understand the trend of Helicobacter pylori (Hp) resistance to clarithromycin and levofloxacin and to provide guidance for Hp eradication therapy. Methods:From January 2014 to December 2018, a total of 66 515 patients with gastrointestinal symptoms were enrolled in the First People's Hospital of Wenling. The patients were divided into the following groups: childhood (0 to 6 years old); juvenile (7 to 17 years old); youth (18 to 40 years old),middle age (41 to 65 years old),and old age (≥66 years old). All patients received gastroscopy, gastric mucosal biopsy, Hp culture and drug sensitivity test of clarithromycin and levofloxacin. Results:The Hp positive rate showed a significant downward trend in 2016, 2017 and 2018 (χ2=14.317, 47.079, 88.054, all P<0.05). The average resistance rate of Hp to clarithromycin from 2014 to 2018 was 22.72% (4 732/20 831) showing an increasing trend, but the increase was slower after 2017. The average resistance rate to levofloxacin was 30.55% (6 364/20 831), and the overall trend showed a sharp rise from 2015 to 2017 (χ2=38.383, 49.569, both P<0.05), and a significant decline was detected after 2017 (χ2=18.841, P<0.05). The resistance rate of Hp to levofloxacin in patients increased with age. The clarithromycin resistance rate first decreased and then increased with age, and the resistance rate in old age (32.52%, 763/2 346) was higher than that in youth (22.09%, 1 086/4 916) and middle age patients (21.21%, 2 854/13 458), and the differences were significant (χ2=991.071, 144.968, both P<0.05). The resistance rate of Hp rose from 12.73% (14/110) in juvenile to 43.31% (1 016/2 346) in old age (χ2=228.867, P<0.05). Conclusion:In recent years, the positive rate of Hp infection in Wenling area has a decreasing trend. Although the resistance rate of Hp to clarithromycin and levofloxacin has been rising slowly or decreasing, it is still at a high level. In the selection of Hp eradication program, the differences between patients in different age groups should be considered with particular attention on the minors.
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Purpose: To study the arterial distribution of embosphere microsphere (EM) and polyvinyl alcohol (PVA) particles in rabbit mesenteric artery using in vivo microscopy.To study the arterial distribution of embosphere microsphere (EM) and polyvinyl alcohol (PVA) particles in rabbit mesenteric artery using in vivo microscopy. Methods: Sixteen New Zealand rabbits were divided into four groups, namely large PVA (560–710 μm), small PVA (150–350 μm), large EM (500–700 μm), and small EM (100–300 μm). The mesenteric arteries of the experimental animals were embolized under fluoroscopic guidance and visualized using in vivo microscopy. The embolized vessel diameter and arterial distribution of embolic agents were compared. Results: The diameters of occluded vessels in large PVA, small PVA, large EM, and small EM groups were 430.60 ± 67.30, 200.95 ± 70.54, 387.79 ± 92.51, and 143.81 ± 39.65 μm, respectively. PVA occluded significantly larger vessels than EM when the particle size was similar (P < 0.001). The proportion of EM at the bifurcation of the artery was significantly higher than that of PVA particles (large PVA < large EM, χ2 = 4.325, P < 0.038; small PVA < small EM, χ2 = 6.68, P < 0.01). Conclusion: Both PVA and EM could occlude vessels smaller than the particle size, and EM resulted in deeper penetration. The location of embolic particles in the artery is mainly related to the shape of particles
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ObjectiveTo investigate the value of ABCR clinical scoring system in guiding repeated transcatheter arterial chemoembolization (TACE) therapy for patients with hepatocellular carcinoma (HCC) and the treatment strategies for patients with an ABCR score of 1-3. MethodsThe patients with HCC who underwent TACE in The First Affiliated Hospital of Soochow University from January 2008 to December 2017 were enrolled. In order to investigate the effect of repeated TACE in patients with different ABCR scores, 229 patients who underwent repeated TACE consecutively (at least twice, without systemic therapy) were enrolled as group A, which was further divided into group A1 with 92 patients (an ABCR score of ≤0), group A2 with 78 patients (an ABCR score of 1-3), and group A3 with 59 patients (an ABCR score of ≥4). In order to investigate the survival time of patients with an ABCR score of 1-3 who received different regimens after first TACE therapy, 118 patients with an ABCR score of 1-3 who received TACE for the first time were enrolled as group B, which was further divided into group B1 with 78 patients (treated with TACE after first TACE therapy), group B2 with 21 patients (treated with TACE combined with sorafenib), and group B3 with 19 patients (treated with sorafenib alone). The survival of the above groups of patients were analyzed. The Fisher’s exact test was used for comparison of categorical data between groups, the Kaplan-Meier method was used to plot survival curves, and the log-rank test was used for comparison of survival time between groups. ResultsThe median survival time was 320 months (95% confidence interval [CI]: 27.7-36.3) in group A1, 10.3 months (95%CI: 8.4-12.2) in group A2, and 4.6 months (95%CI: 3.7-5.5) in group A3. Group A1 had a better survival time than group A2 (χ2=106.99, P<0.01), and group A2 had a better survival time than group A3 (χ2=49.66, P<0.01). The median survival time was 10.3 months (95%CI: 8.4-12.2) in group B1, 14.8 months (95%CI: 7.8-21.8) in group B2, and 6.0 months (95%CI: 4.6-7.4) in group B3, and group B2 had a better survival time than group B1 (χ2=6.80, P<0.01) and group B3 (χ2=29.89, P<0.01). ConclusionThe ABCR score has a certain guiding significance for the treatment of HCC patients. Repeated TACE may be considered for patients with an ABCR score of ≤0, while patients with an ABCR score of ≥4 may not benefit from further TACE therapy, and TACE combined with sorafenib might bring maximum benefits to patients with an ABCR score of 1-3.
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The problems of the syndrome differentiation of migraine in acupuncture treatment were collected, e.g. inconsistency of syndrome differentiation, unclear staging of syndrome differentiation, lack of standardization in comparison between syndrome differentiation and non-differentiation, insufficient research on the factors of syndrome differentiation. In view of the exiting problems, focusing on two aspects of migraine, namely syndrome differentiation and acupuncture effect, the clinical treatment and research are conducted in migraine treated with acupuncture based on syndrome differentiation. It is believed that the comprehensive observation of the relationship between syndrome differentiation and acupuncture effect, as well as the analysis of the relevant factors of syndrome differentiation of migraine should be the focus in future research.
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Humains , Thérapie par acupuncture , Migraines , Thérapeutique , Résultat thérapeutiqueRésumé
Objective To investigate the effects of low dose of gamma knife irradiation on the expression of N-methyl-D-aspartate (NMDA) receptor subunits in cortex and hippocampus of epileptic rats. Methods The rats were randomly divided into 4 groups: control group, GK group, pentylenetetrazole (PTZ) group and GK+ PTZ group. The rats were injected intraperitoneally with PTZ to establish the epileptic models. Gamma knife irradiation was performed on bilateral frontal cortex of rats at a peripheral dose of 15Gy. After irradiation, the changes of the seizure and behaviors were observed and recorded. The rats were killed on the 12th week after irradiation, Immunohistochemstry and western blotting were used to detect the relative expression levels of NMDAR subunits (NR1, NR2A, and NR2B) in the cortex and hippocampus. Results There were no epileptic seizures in the control group and the GK group. Compared with the PTZ group, the epileptic seizures of rats in the GK+PTZ group were significantly reduced after low dose gamma knife irradiation (P<0.05). Compared with control group, the protein expression levels of NR1, NR2A and NR2B in the PTZ group increased significantly in the cortex and hippocampus, and so were the positive neurons and their average absorbance value (P<0.05). Compared with PTZ group, the protein expression levels of NR1, NR2A and NR2B of the GK+PTZ group decreased remarkably in the cortex and hippocampus (P<0.05). Protein expression levels of NR1, NR2A and NR2B were not significantly different between control group and GK group (P>0.05). Conclusion Epileptic rats exhibited an increase in the protein expression levels of NR1, NR2A and NR2B in the cortex and hippocampus while low dose of gamma knife irradiation can decrease expression levels of NMDA receptor subunits in the cortex and hippocampus of epileptic rats, which might represent a possible mechanism underlying the therapeutic effects of gamma knife irradiation on epileptic seizure.
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To summarize the status quo of acupoint optimization for prophylactic treatment of migraine from acupoint selection based on traditional Chinese medicine theory, acupoints selection based on modern medical theory, and the relative specificity of acupoints. It is found that at present, there are many gaps in the research of preventive treatment of migraine, while the initial optimization scheme of acupoints is formed, and there is controversy in the relative specificity of acupoints. It is believed that through the systematic analysis of the disease characteristics of acupuncture, manipulation, acupuncture tools and other factors that affect the selection of acupoints, the relative specificity of acupoints can be further clarified, and the advantages of acupoint selection based on traditional Chinese medicine theory and modern medical theory can be further optimized for the preventive treatment of migraine and improve the curative effect.
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Humains , Points d'acupuncture , Thérapie par acupuncture , Médecine traditionnelle chinoise , MigrainesRésumé
Purpose To detect the expression of N-Myc and p53 in the tissues of prostate cancer (PCa) patients and to explore the relationship between them and their significance.Methods A total of 63 patients with PCa and 50 patients with benign prostatic hyperplasia (BPH) who underwent prostate surgery at the First Affiliated Hospital of Anhui Medical University were recruited in 2015-2016. The expression of N-Myc and p53 in pathological tissues were detected by immunohistochemistry of MaxVision method. Results The expression of N-Myc and p53 in PCa tissues was increased (P < 0.05). The expression of N-Myc and p53 in PCa tissues was correlated with bone metastases and TNM stage (P < 0.05), but not related to patient age, preoperative PSA level and other factors (P> 0.05). In addition, the expression of p53 was also correlated with Gleason score.Conclusion The high expression of N-Myc and p53 in PCa may involved in the malignant progression and metastasis of prostate cancer, and it is expected to become a new target for detecting PCa metastasis.
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Objective: To analyse the composition of hospitalization childbirth costs and its influencing factors, which provides theory basis on reasonable control of rapid growth of hospitalization childbirth costs. Methods: With the method of stratified random sampling, 12 secondary and tertiary hospitals were chosen in Shanghai. According to the hospitalization number, the maternal disease cases delivering from Jan. 1, 2016 to Jun. 30, 2016 were randomly selected. The basic information and the cost of hospitalization were collected, and the database was established. Descriptive statistics, z test, non-parametric test and multiple linear stepwise regression analysis were performed by SPSS 20.0. Results: The cost of hospital delivery per capita in Shanghai from Jan. to Jun. 2016 was 7 826.39 yuan, of which the cost of bed, inspection, operation and western medicine accounted for the highest proportion of the expenses (17%, 16%, 15% and 15%, respectively). Maternal hospitalization cost univariate analysis showed that the effect of age, occupation, payment, pregnancy complications, modes of delivery, length of stay, prenatal and postnatal pathological condition on hospitalization cost were statistically significant. A multifactorial study on the cost of hospitalization showed that the delivery mode, length of stay, prenatal and postnatal pathological pathological condition, age and pregnancy complications were the main influencing factors. Conclusion: The hospitalization cost of cesarean section is significantly higher than that of vaginal delivery, the hospital cost structure of these two modes of delivery is different, and the reduction of cesarean section rate is of great significance. It is necessary to optimize the hospital cost structure via controlling the cost of western medicine, operation, and inspection.
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Objective To evaluate the feasibility,safety and effectiveness of integrated treatmentwith comprehensively interventional techniques for acute deep venous thrombosis(DVT)of lower extremity. Methods During the period from June 2016 to June 2017,a total of 23 patients with acute DVT ofunilateral lower extremity were admitted to authors' hospital to receive integrated treatment. AngioJetthrombectomy,balloon angioplasty and iliac vein stent implantation were performed in the same setting.Angiography was performed immediately after the procedure. If the thrombus clearance rate was grade Ⅲand there were no large free clots(>5mm)in the lower extremity vein and inferior vena cava,the inferiorvena cava filters would be retrieved through their sheath,otherwise,the inferior vena cava filters would bereleased. All patients received continuous transcatheter infusion of urokinase until the thrombosis wasconfirmed to be completely dissolved. The patients were followed up at outpatient clinic at 1,3,6 and 12months after the treatment,and reexamination of color ultrasound and/or lower limb venography was used toassess the blood flow in the deep veins and in the stents. Results Angiography postoperatively showedthrombus clearance rate of grade Ⅲ was obtained in 20 patients(87%)who were successfully accomplishedintegrated treatment. The inferior vena cava filters had been retrieved after thrombolysis in 3 patients(13%)with thrombus clearance rate of grade Ⅱ. Twenty-one stents were implanted directly after thrombectomy in21 patients with iliac vein stenosis. There were no serious complications such as pulmonary embolism,severe hemorrhage,etc. Venous patency was confirmed by color ultrasound or lower limb venography. Conclusion Integrated treatment with comprehensively interventional techniques is feasible,safe,andeffective for acute DVT of lower extremity
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Objective To investigate the role of estrogen and progesterone in the tumorigenesis of triple-negative breast cancer and its molecular mechanism. Methods To construct of MDA-MB-231/miR-145 and MDA-MB-231/ miR-SCR(scramble control) stable cell lines. The cells were cultured in five groups that were respectively miR-SCR group, miR-145 group, miR-145 + E2 group, miR-145 + P4 group, miR-145 +E2 +P4 group, grouped adminis-tradion. Cell proliferation was detected by CCK-8 kit, the expression level of miR-145 target gene insulin-like growth factor receptor-1 (IGF-IR), N-RAS was detected by Western blot, expression of IGF-1R, N-RAS downstream signaling molecule vascular endothelial growth factor(VEGF) and expression of miR-145 after transfection was detected by real-time quantitative PCR(qRT-PCR). Results The results of CCK-8 assay showed that estrogen and progesterone combined administration could reverse the inhibitory effect of miR-145 on the proliferation of triple-negative breast cancer cells (P < 0. 05 ). The results of Western blot showed that estrogen and progesterone combined administration could increase the expression level of IGF-1 R and N-RAS in the target gene of miR-145. The results of qRT-PCR showed that the expression level of miR-145 was significantly higher than that of control group (P < 0. 05) and the expression of VEGF was significantly increased by estrogen and progesterone combined administration (P <0. 01). Conclusion Estrogen and progesterone combined administration can promote the expression of VEGF and cell proliferation, and then reverse the anti-tumor effect of miR-145 in the triple-negative breast cancer.
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Objective To investigate the effects of ZNF331 overexpression on proliferation and apoptosis of human colon cancer cell HCT116, and the relevant apoptotic mechanism.Methods The lentivirus vector of overexpressed ZNF331,Flag-pLV-Neo-ZNF331,was constructed and packaged.HCT116/p53 +/+(wild type p53)and HCT116/p53 -/-(deficient p53)cells were infected.Clones with ZNF331 overexpression were identified by Western blotting.Cell proliferation assay,colony formation assay and flow cytometry analysis were used to examine the effects of ZNF 331 on cell proliferation and apoptosis.Immunoprecipitation,luciferase reporter gene assay and real-time PCR were performed to detect interactions between ZNF331 and p53, p53 transcriptional activity and the expression of p 53 apoptotic target genes, respectively.Results The lentivirus vector of overexpressed ZNF 331 was successfully generated.Stable clones of ZNF331 overexpression were established.ZNF331 showed no significant effect on cell proliferation of HCT 116/p53 +/+, but inhibited cell proliferation of HCT116/p53 -/-(P<0.01).ZNF331 could interact with p53,dose-dependently inhibit the transcriptional activity of p53 and downregulate the mRNA levels of pro-apoptotic p53 target genes, Puma and p53AIP1 (P<0.05).ZNF331 could suppress p53-induced apoptosis(P <0.01).Conclusion The influence of ZNF331 overexpression on colon cancer cell proliferation is dependent on p 53 status.ZNF331 overexpression can suppress colon cancer cell apoptosis by interacting with p 53 and inhibiting the transcriptional activity of p 53.
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Purpose To detect the expression of miR-421 in serum and tissues of prostate cancer ( PCa) and its clinical value inPCa. Methods 62 cases of PCa and 46 cases of benign prostatic hyperplasia (BPH) were enrolled in the Department of Urology, the First Affiliated Hospital of Anhui Medical Universi-ty from December 2015 to December 2016. Another 42 cases of paraffin-embedded sections of PCa and 37 cases of BPH were al-so used in this study. The expression of miR-421 in serum was detected by real-time PCR (qRT-PCR). The expression of miR-421 in tissues was detected by in situ hybridization. Results The expression of miR-421 in serum of patients with PCa and BPH was ( 2. 52 ± 1. 70 ) and ( 0. 82 ± 0. 65 ), respectively. Compared with the expression of BPH, the expression of miR- 421 in serum of PCa was increased (P<0. 05). The expression of miR-421 in serum and tissues of patients with PCa was corre-lated with Gleason score, TNM clinical stage, and bone metasta-ses (P<0. 05). It was not related to the patient's age, preop-erative PSA level and other factors ( P>0. 05). Conclusion miR-421 is more abundant in PCa patients than that in patients with benign prostatic hyperplasia, and is expected to become a diagnostic marker for PCa.
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Objective·To analyse the composition of hospitalization childbirth costs and its influencing factors, which provides theory basis on reasonable control of rapid growth of hospitalization childbirth costs. Methods·With the method of stratified random sampling, 12 secondary and tertiary hospitals were chosen in Shanghai. According to the hospitalization number, the maternal disease cases delivering from Jan. 1, 2016 to Jun. 30, 2016 were randomly selected. The basic information and the cost of hospitalization were collected, and the database was established. Descriptive statistics, z test, non-parametric test and multiple linear stepwise regression analysis were performed by SPSS 20.0. Results·The cost of hospital delivery per capita in Shanghai from Jan. to Jun. 2016 was 7 826.39 yuan, of which the cost of bed, inspection, operation and western medicine accounted for the highest proportion of the expenses (17%, 16%, 15% and 15%, respectively). Maternal hospitalization cost univariate analysis showed that the effect of age, occupation, payment, pregnancy complications, modes of delivery, length of stay, prenatal and postnatal pathological condition on hospitalization cost were statistically significant. A multifactorial study on the cost of hospitalization showed that the delivery mode, length of stay, prenatal and postnatal pathological pathological condition, age and pregnancy complications were the main influencing factors. Conclusion·The hospitalization cost of cesarean section is significantly higher than that of vaginal delivery, the hospital cost structure of these two modes of delivery is different, and the reduction of cesarean section rate is of great significance.It is necessary to optimize the hospital cost structure via controlling the cost of western medicine,operation, and inspection.