During the process of dairy farming,various factors such as physical injury and bacterial infection act upon body tissues or organs,leading to the disruption of skin or mucous tissue integ-rity and subsequent tissue injury and trauma.The healing of these injuries is a complex process that necessitates the coordinated efforts of different cells and involvement of diverse cytokines.A-mong them,the interaction between macrophages and myofibroblasts is indispensable for efficient tissue repair.Nod-like receptor protein 3(NLRP3),a pattern recognition receptor in the innate im-mune system,may play a regulatory role in modulating this intricate process.In this study,cow myofibroblasts and M1 type bone marrow-derived macrophages were cultured in vitro,followed by collection of cell culture supernatant for co-culture analysis.Both cytokine secretion levels in M1 type bone marrow-derived macrophages as well as expression patterns levels of myofibroblast growth factor protein and mRNA were detected.The regulatory mechanism underlying NLRP3 in-volvement in mediating interactions between these two cell types was investigated using NLRP3 inhibitor MCC950.The results showed that an effective method for culturing cow muscle fibroblasts in vitro was successfully established and myofibroblast conditioned medium(MFbCM)could regulate M1 macrophage secretion profiles.Moreover,M1 macrophage conditioned medium(M1?CM)was found to influence myofibroblast growth factor expression levels.Our findings sug-gest that NLRP3 plays a significant regulatory role during crosstalk between myofibroblasts and M1-type pro-inflammatory macrophages.

Trigeminal neuralgia can seriously affect the quality of life. Balloon compression is easy to operate, safe and efficient, accompanying high pain recurrence rate. This review focuses on the influences of relapse-related influencing factors, such as intraoperative balloon shape, balloon compression time, balloon volume and pressure, underlying medical conditions, and postoperative imaging data, in pain recurrence, with a view to intervene in advance, formulate individualized treatment strategies, and improve patient prognoses.

Objective To study the accuracy and safety of oral mucosal exfoliated cell specimens used in the bedside rapid detection of MTHFR C677T genotype by using the fluorescent probe method.Methods The outpatients and inpatients with hypertension visited and admitted in the department of cardiovascular medicine of this hospital from January 2019 to September 2020 were selected.The plasma homocysteine (Hcy) level in all patients was detected in the laboratory,a total of 482 hypertensive patients with Hcy≥10 μmol/L were se-lected,and the oral mucosal cells and whole blood sample were collected in all patients,and the genotypes of the above specimens were detected by the oral mucosal exfoliative cell fluorescent probe method and whole blood sample contrast reagents.If the two test results were inconsistent,the "gold standard" Sanger sequen-cing method was used to detect the whole blood sample for the final determination of MTHFR C677T geno-type.The coincidence rate was compared between the two detection methods,and the probability of adverse e-vents during the samples collection was observed and recorded.The accuracy and safety of fluorescence probe method for detecting MTHFR C677T genotype in the patients with oral mucosa exfoliation was evaluated.Re-sults The oral mucosal exfoliated cell samples and whole blood samples from 482 hypertensive patients were successfully collected,and no obvious adverse reactions occurred during the sampling process.The incidence rate of total mutation of MTHFR C677T gene detected by the fluorescence probe method and contrast reagent all were 73.23％ (353/482),the coincidence rate of homozygous wild type (CC type) in MTHFR C677T gene detected by the two methods was 100.00％ (95％CI:97.11-100.00),which of heterozygous mutant type (CT type) was 99.14％ (95％CI:96.91-99.76),which of homozygous mutant type (TT type) was 99.17％(95％CI:95.47-99.85),the total coincident rate of MTHFR C677T genotype was 99.38％ (95％CI:98.19-99.79)and the detection results consistency Kappa value was 0.9902.Conclusion The detection of MTHFR C677T gene mutation in oral mucosal exfoliated cells by fluorescent probe method is simple with less invasion,moreover which is rapid,safe and accurate.

【Objective】 To explore the effects of early application of erythropoietin (EPO) in patients with anemia after renal transplantation. 【Methods】 Patients who underwent renal transplantation in the First Affiliated Hospital of Soochow University were retrospectively analyzed. According to whether EPO was applied after operation, the patients were divided into EPO group and routine group. Patients with delayed renal function recovery were excluded, and the remaining patients were further analyzed. The general, laboratory and follow-up data of the two groups were compared, and adverse drug reactions were observed. 【Results】 The hemoglobin (P=0.026), red blood cell count (P=0.038) and hematocrit (P=0.011) in EPO group were higher than those in the routine group 2 weeks after operation, while the postoperative serum creatinine level was lower (P=0.001). Since the first week after operation, the reticulocyte count in EPO group was significantly higher than that in routine group (P<0.01). There was a negative correlation between hemoglobin and serum creatinine in EPO group at week 1 (r=-0.375, P=0.010) and week 2 (r=-0.386, P=0.008). During the treatment, 6 patients showed transient elevation of serum potassium, which returned to normal after symptomatic treatment, and no obvious adverse drug reactions were observed. 【Conclusion】 Continuous application of erythropoietin in the early stage after renal transplantation can significantly improve anemia in renal transplant patients and promote the recovery of renal function.

OBJECTIVES: Prediabetes is associated with an increased risk of cognitive impairment and neurodegenerative diseases. However, the exact mechanism of prediabetes-related brain diseases has not been fully elucidated. The brain structure of patients with prediabetes has been damaged to varying degrees, and these changes may affect the topological characteristics of large-scale brain networks. The structural covariance of connected gray matter has been demonstrated valuable in inferring large-scale structural brain networks. The alterations of gray matter structural covariance networks in prediabetes remain unclear. This study aims to examine the topological features and robustness of gray matter structural covariance networks in prediabetes. METHODS: A total of 48 subjects were enrolled in this study, including 23 patients with prediabetes (the PD group) and 25 age-and sex-matched healthy controls (the Ctr group). All subjects' high-resolution 3D T₁ images of the brain were collected by a 3.0 Tesla MR machine. Mini-mental state examination was used to evaluate the cognitive status of each subject. We calculated the gray matter volume of 116 brain regions with automated anatomical labeling (AAL) template, and constructed gray matter structural covariance networks by thresholding interregional structural correlation matrices as well as graph theoretical analysis. The area under the curve (AUC) in conjunction with permutation testing was employed for testing the differences in network measures, which included small world parameter (Sigma), normalized clustering coefficient (Gamma), normalized path length (Lambda), global efficiency, characteristic path length, local efficiency, mean clustering coefficient, and network robustness parameters. RESULTS: The network in both groups followed small-world characteristics, showing that Sigma was greater than 1, the Lambda was much higher than 1, and Gamma was close to 1. Compared with the Ctr group, the network of the PD group showed increased Sigma, Lambda, and Gamma across a range of network sparsity. The Gamma of the PD group was significantly higher than that in the Ctr group in the network sparsity range of 0.12-0.16, but there was no difference between the 2 groups (all P>0.05). The grey matter network showed an increased characteristic path length and a decreased global efficiency in the PD group, but AUC analysis showed that there was no significant difference between groups (all P>0.05). For the network separation measures, the local efficiency and mean clustering coefficient of the gray matter network in the PD group were significantly increased and AUC analysis also confirmed it (P=0.001 and P=0.004, respectively). In addition, network robustness analysis showed that the grey matter network of the PD group was more vulnerable to random damage (P=0.001). CONCLUSIONS The prediabetic gray matter network shows an increased average clustering coefficient and local efficiency, and is more vulnerable to random damage than the healthy control, suggesting that the topological characteristics of the prediabetes grey matter covariant network have changed (network separation enhanced and network robustness reduced), which may provide new insights into the brain damage relevant to the disease.
Humans ; Gray Matter/diagnostic imaging* ; Prediabetic State ; Magnetic Resonance Imaging ; Cerebral Cortex ; Brain

To alleviate the shortage of excellent talents of traditional Chinese medicine (TCM), the State Administration of Traditional Chinese Medicine has decided to cultivate a group of talents with strong theoretical foundation, rich practical experience and exquisite skills who would like to devote themselves to TCM technology research. The national talent training program for inheritance of characteristic TCM technology is a major breakthrough in the history of new China in the cultivation of high-level TCM technology talents. A retrospective analysis was performed on the national talent training program for inheritance of characteristic TCM technology hold in training bases from Beijing, Shanghai, Guangdong Province, Jiangsu Province, Anhui Province, Xinjiang Uygur Autonomous Region, Inner Mongolia Autonomous Region, Heilongjiang Province, Yunnan Province, Sichuan Province, Shaanxi Province and Fujian Province. Based on the completion assessment work of 2014 and 2015 national talent training program for inheritance of characteristic TCM technology, and after knowledge exchange and discussion with the training subjects from 30 provinces and some teaching experts in the field of characteristic TCM technology, this paper summarizes the work of the national talent training program for inheritance of characteristic TCM technology. After trained in bases in China, training subjects' theoretical knowledge and practical skills as well as their comprehensive capacity have been greatly promoted. At the same time, there are also some problems and shortages. For example, characteristic TCM technology in some training bases is not prominent enough, some characteristic TCM technologies are not well inherited, and the affiliations of some training subjects do not pay enough attention to it. All of these problems should be solved and improved in future work.

Objective:To investigate the prevalence of thyroid nodules among students aged 8 - 17 years in Jintan District, Changzhou City, Jiangsu Province, and to explore the risk factors of thyroid nodules among underage students.Methods:In September 2018, two primary and middle schools, one ordinary high school and one vocational high school in Jintan District were selected as the survey sites. Students aged 8 - 17 years were selected as the survey subjects, and questionnaire survey, physical examination and thyroid ultrasound examination were conducted. At the same time, drinking water samples from schools and towns were collected to test water iodine, and urine samples from students and family salt samples were collected to test urinary iodine and salt iodine. Multivariate logistic regression was used to analyze related factors that may affect the occurrence of thyroid nodules.Results:A total of 725 students were surveyed, including 359 (49.5%) boys and 366 (50.5%) girls. Two water samples were collected from each of the four schools, and the mean values of water iodine were 0.3, 8.5, 0.2 and 0.2 μg/L, respectively; two water samples were collected from each of the towns where the four schools were located, and the mean values of water iodine were 6.8, 8.1, 4.8 and 3.7 μg/L, respectively. A total of 725 urine samples were collected, and the median urinary iodine was 209.92 μg/L, ranging from 8.60 to 932.00 μg/L. A total of 725 edible salt samples were collected from students' families, and the salt iodine content was (23.75 ± 7.10) mg/kg, ranging from 0.00 to 60.30 mg/kg, and 95.0% (689/725) of students' families ate iodized salt. A total of 725 students were examined for thyroid gland, and 22 were diagnosed with goiter, with an enlargement rate of 3.0%; and 155 were diagnosed with thyroid nodules, with a detection rate of 21.4%. The detection rates of thyroid nodules in boys and girls were 20.9% (75/359) and 21.9% (80/366), respectively; the detection rates of thyroid nodules in students who participated and did not participate in extracurricular tuition/interest classes in the past month were 28.2% (71/252) and 17.8% (84/473), respectively. The results of multivariate logistic regression analysis showed that girls and participating in extracurricular tuition/interest classes in the past month were independent risk factors for the occurrence of thyroid nodules [odds ratio ( OR) = 2.057, 2.538, 95% confidence interval ( CI): 1.226 - 3.451, 1.532 - 4.204, P < 0.05). Conclusions:The detection rate of thyroid nodules in students aged 8 - 17 years in Jintan District is at a high level. Girls and participating in extracurricular tuition/interest classes in the past month are independent risk factors for the occurrence of thyroid nodules.

Objective:To explore the effects of two kinds of indwelling needles with different materials on catheterization related complications and comfort of patients undergoing cerebral angiography.Methods:A total of 120 patients who were hospitalized in Neurology Department of Qinhuangdao First Hospital and were given venous indwelling needles for intravenous infusion from July 2018 to May 2019 were randomly enrolled. According to admission order, they were numbered and divided into observation group and control group by random number table method, 60 cases in each group. The control group was given common intravenous indwelling needle, while observation group was given indwelling needle of positively pressurized needle-free link-reservation. The differences in catheterization related complications, catheterization time and comfort were compared between the two groups.Results:At 24 h after catheterization, the incidence rates of tube blockage, fluid exudation and phlebitis in observation group were 0, 1.67% (1/60), 0, while 3.33% (2/60), 3.33% (2/60), 3.33% (2/60) in control group, there were no significant differences between the two groups ( χ2 values were 2.037, 0.348, 2.039, P> 0.05). At 48 h after catheterization, the incidence rates of tube blockage, fluid exudation and phlebitis in observation group were 1.67% (1/60), 1.67% (1/60), 1.67% (1/60), while 10.00% (6/60), 8.33% (5/60), 6.67% (4/60) in control group, there were no significant differences between the two groups ( χ2 values were 3.793, 2.814, 1.884, P>0.05). At 72 h after catheterization, the incidence rates of tube blockage, fluid exudation and phlebitis in observation group were all 3.33% (2/60), which were lower than 16.67% (10/60), 15.00% (9/60), 13.33% (8/60) in control group, there were significant differences between the two groups ( χ2 values were 5.934, 4.905, 3.937, P<0.05). At 24, 48 and 72 h after catheterization, liquid flow rates per unit of time before and after tube flashing in observation group were (506.15 ± 66.84), (483.55 ± 36.87), (410.62 ± 41.66) ml/h, which were higher than (474.77 ± 45.71), (417.80 ± 22.14), (310.87 ± 20.96) ml/h in control group ( t values were 3.002, 11.842, 16.568, P<0.05). The comfort score was (8.53 ± 1.41) points in observation group, higher than (7.97 ± 1.23) points in control group, and indwelling time of indwelling needles was (84.45 ± 8.95) h in observation group, longer than (76.97 ± 6.77) h in control group ( t values were 2.318, 5.163, P<0.05). Conclusions:Indwelling needle of positively pressurized needle-free link-reservation can effectively reduce incidence of complications in patients undergoing cerebral angiography, and improve their comfort during catheterization.

To explore the value of prostate imaging reporting and data system version 2 (PI-RADS V2) combined with quantitative parameters derived from apparent diffusion coefficient (ADC) map in the diagnosis of peripheral zone prostate cancer.
 Methods: A total of 50 patients who underwent prostate multiparametric MRI (mpMRI) with suspicious peripheral nodules were retrospectively enrolled, and all patients were biopsy-proven histologically. Two radiologists analyzed the position and category of peripheral zone lesions based on PI-RADS V2. Then 12 ADC quantitative parameters were calculated regarding each lesion on the ADC map by post-processing software. The lesions were divided into malignant group and benign group according to histopathological findings. The ADC quantitative parameters between groups were compared, and stepwise logistic regression analysis was used to build a discriminative model. Receiver operating characteristic (ROC) curve and decision curve analysis (DCA) were performed to evaluate the diagnostic power and clinical benefit.
 Results: Twenty-eight peripheral zone prostate malignant lesions and 25 benign lesions were obtained finally. The area under the ROC curve, sensitivity and specificity to differentiate peripheral zone prostate malignant from benign lesions were as follows: 0.803, 60.71%, 92.00% (PI-RADS V2 score), 0.857, 89.29%, 76.00% (ADC model), and 0.891, 71.43%, 92.00% (combined model), respectively. The discriminative power of the combined model was significantly improved compared with PI-RADS V2 score (P=0.012). The combined model had relatively optimal overall net benefit, which outperformed the PI-RADS V2 score when threshold probability varied in the range of 0.05-0.27 and 0.46-0.81.
 Conclusion: PI-RADS V2 combined with quantitative analysis of ADC map improve the power in discriminating peripheral zone prostate cancer from benign lesions, and the clinical benefit as well.
Data Systems ; Diffusion Magnetic Resonance Imaging ; Humans ; Magnetic Resonance Imaging ; Male ; Prostatic Neoplasms ; diagnostic imaging ; Retrospective Studies

[Abstract] Objective: To detect the expression of zinc transporter 1 (ZnT1) gene in glioma tissue, and to explore its effect on the proliferation, migration and invasion of U87 cells. Methods: From October 2015 to January 2017, 20 patients with glioma, who received no chemoradiotherapy before operation, were collected from Department of Neurosurgery, the First Affiliated Hospital of China Medical University. The protein and mRNA content of ZnT1 in glioma tissues and adjacent tissues were detected by Western blotting and Realtime PCR, respectively. ZnT1 and si-ZnT1 plasmids were transfected into glioma U87 cell line respectively to construct ZnT1 over-expression U87 cell line and ZnT1 knockdown U87 cell line. The effects of ZnT1 on proliferation, migration and invasion of U87 cells were detected by MTT and transwell assay. Results: Both mRNA and protein expressions of ZnT1 in glioma tissues was significantly higher than those in adjacent tissues (all P<0.05). U87 cell lines with ZnT1 over-expression and knockdown were successfully constructed. Compared with the control group and empty plasmid control group, the proliferation (0.54±0.01 vs 0.45±0.04, 0.43±0.03, P<0.01), invasion and migration (all P<0.05) of U87 cells with ZnT1 over-expression were significantly increased at 12 h after transfection; however, the proliferation (0.37±0.03 vs 0.45±0.01, 0.44±0.03, P<0.01), invasion and migration (all P<0.05) of U87 cells with ZnT1 knockdown were decreased significantly. Conclusion: ZnT1 was highly expressed in glioma tissues, and promoted the proliferation, migration and invasion of glioma U87 cells.