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1.
Article in Chinese | WPRIM | ID: wpr-920658

ABSTRACT

@#Topical preparations for skin, including the commonly used dosage forms of ointments, creams, gels, patches and plasters, are convenient and can avoid the first-pass effect of drugs.Rheological study, which describes the flow characteristics and mechanical properties of products relevant to their Critical Quality Attributes, has become the main focus for topical preparations.Liquid and solid behaviors of products are usually investigated via steady rheology as well as dynamic rheology.This article reviews the research on topical preparations for skin and the data analysis models based on two rheological methods, aiming to provide some references for the rheological evaluation of topical preparations.

2.
Article in Chinese | WPRIM | ID: wpr-884597

ABSTRACT

Objective:To investigate the effect of GTPBP4 silencing by RNA interference on the radiosensitivity of esphageal cancer EC9706 cells line.Methods:The expression data of GTPBP4 in esophageal cancer tissues was obtained from public Gene Expression Omnibus (GEO) database. Recombinant plasmid-mediated RNA interference (RNAi) was employed to transfect the esophageal cancer EC9706 cell to evaluate the influence of GTPBP4 silencing on the proliferation, apoptosis and radiosensitivity of esphageal cancer EC9706 cells. The expression levels of GTPBP4 mRNA and protein and apoptosis-associated proteins of Bax, cleaved caspase-9, cleaved caspase-3 and Bcl-2 were determined by qRT-PCR and Western blot. The cell proliferation was determined by MTT assay. The changes in cell apoptosis were detected AnnexinⅤ-FITC/PI double staining flow cytometry. The variations in radiosensitivity after radiation exposure were assessed by clone formation assay.Results:The expression level of GTPBP4 in the esophageal cancer tissues was significantly higher than that in the normal adjacent esophageal tissues ( P<0.001). qRT-PCR and Western blot demonstrated that the expression levels of GTPBP4 mRNA and protein in the GTPBP4-siRNA group were significantly lower than those in the blank and negative control groups (both P<0.001), suggesting that the plasmid was successfully transfected into the EC9706 cells. MTT assay indicated that the EC9706 cell proliferation rate was significantly inhibited ( P<0.001). Flow cytometry found that the apoptosis rate was significantly increased in the GTPBP4-siRNA group ( P<0.001). After GTPBP4 gene interference combined with radiotherapy, the cell sensitivity enhancement ratio was 1.716. The apoptosis rate of EC9706 cells was significantly increased in the GTPBP4-siRNA group ( P<0.001). The expression levels of apoptosis-associated proteins including cleaved caspase-9, cleaved caspase-3 and Bax were significantly up-regulated, whereas that of Bcl-2 was significantly down-regulated in the EC9706 cells in the GTPBP4-siRNA group ( P<0.001, P=0.001, P=0.001 and P=0.005). Conclusions:GTPBP4 gene is highly expressed in human esophageal cancer tissues. RNAi technology can effectively inhibit the expression of GTPBP4 gene in the EC9706 cells, thereby suppressing cell proliferation, inducing cell apoptosis and enhancing the radiosensitivity of cells.

3.
Article in Chinese | WPRIM | ID: wpr-884572

ABSTRACT

Objective:To preliminarily investigate the efficacy and safety of bevacizumab plus neoadjuvant chemotherapy combined with concurrent chemoradiotherapy in the treatment of locally advanced giant cervical cancer (LACC).Methods:Twenty-four patients with LACC who were treated with bevacizumab combined with neoadjuvant chemotherapy were assigned into the study group, and 30 patients receiving neoadjuvant chemotherapy in phase Ⅱ clinical trial (ChiCTR-TRC-11001832) were allocated in the control group. The survival rate was calculated by the Kaplan- Meier method, and the significance of differences between the variables was determined by the log-rank test. Results:The tumor volumes were (1.64±23.15) cm 3 and (12.83±15.08)( P=0.037), and the complete remission (CR) rates were calculated as 45.8% and 13.3%( P=0.004) in the study and control groups after neoadjuvant chemotherapy. The tumor volumes were (0±1.5) cm 3 and (1.00±10.63) cm 3( P=0.022) and the CR rates were 70% and 50%( P=0.009) in the study and control groups before afterloading treatment. The median follow-up was 24.6(9.3-101.7) months. The 1-and 2-year overall survival rates were 96%, 96% and 90%, 71%( P=0.110), the recurrence-free survival rates was 96%, 96% and 97%, 89%( P=0.512), and the distant metastasis-free survival rates were 96%, 88% and 83%, 80%( P=0.297) in the study and control groups, respectively. Adverse reactions were acceptable in both groups. Conclusion:Bevacizumab combined with neoadjuvant chemotherapy can significantly reduce the tumor volume, improve the tumor CR rate and yield tolerable adverse reactions.

4.
Article in English | WPRIM | ID: wpr-874370

ABSTRACT

Purpose@#Tumor regression grade (TRG) has been widely used in gastrointestinal carcinoma to assess pathological responses to neoadjuvant chemotherapy (NCT). There are various standards without a consensus, and it is still unclear which kind of system has better predictive value. This study aims to investigate and compare the predictive ability of the Mandard and Becker TRGs in patients with locally advanced gastric cancer. @*Materials and Methods@#A total of 290 patients with locally advanced gastric adenocarcinoma who underwent NCT and curative surgery were studied. Survival analysis for overall survival (OS) and disease-free survival (DFS) were based on the Kaplan-Meier method and Cox proportional hazards method. Predictive values of TRGs and models were assessed by time-dependent receiver operating characteristic (ROC) curve, the area under the ROC curve (AUC), nomogram, and calibration curve. @*Results@#In multivariable analysis, the Mandard TRG was associated with OS (hazard ratio [HR], 1.806; p=0.026) and DFS (HR, 1.792; p=0.017). The Becker TRG was also related to OS (HR, 1.880; p=0.014) and DFS (HR, 1.919; p=0.006). The Mandard and Becker TRG AUCs for 5-year survival were 0.72 and 0.71, respectively. The whole models showed an increased predictive value, with AUCs of 0.85 and 0.86, respectively. There was no significant difference between the two TRGs and two models. @*Conclusion@#TRG was an independent predictor for survival, and there was no significant difference between these two systems.

5.
Article in Chinese | WPRIM | ID: wpr-888400

ABSTRACT

OBJECTIVE@#To explore the molecular mechanism of a case where RhD genotyping did not match serological results.@*METHODS@#The serological results of 8 members from two generations of this family were analyzed. And according to Mendelian law of inheritance, RhD genotyping, zygotic type determination and gene sequencing were performed for the family members.@*RESULTS@#The proband and one of her cousins have the same RhD alleles, both of them have a 336-1G>A intron variant RhD allele and a complete RhD deletion allele. The variant alleles are inherited from two of their parents with blood relationship, while the complete-deleted alleles come from the other. 336-1G>A means that the last base G of the second intron of the RhD gene is mutated to A, which leads to a negative RhD serology and a positive genotype in the proband.@*CONCLUSION@#There was a rare 336-1G> A intron variant gene (RhD * 01N.25) in this family, which was a recessive gene relative to the RhD gene and resulted in RhD phenotype negative.


Subject(s)
Alleles , Female , Genotype , Humans , Introns/genetics , Pedigree , Phenotype , Rh-Hr Blood-Group System/genetics
6.
Article in Chinese | WPRIM | ID: wpr-879276

ABSTRACT

By analyzing the physiological structure and motion characteristics of human ankle joint, a four degree of freedom generalized spherical parallel mechanism is proposed to meet the needs of ankle rehabilitation. Using the spiral theory to analyze the motion characteristics of the mechanism and based on the method of describing the position with spherical coordinates and the posture with Euler Angle, the inverse solution of the closed vector equation of mechanism position is established. The workspace of mechanism is analyzed according to the constraint conditions of inverse solution. The workspace of the moving spherical center of the mechanism is used to match the movement space of the tibiotalar joint, and the workspace of the dynamic platform is used to match the movement space of subtalar joint. Genetic algorithm is used to optimize the key scale parameters of the mechanism. The results show that the workspace of the generalized spherical parallel mechanism can satisfy the actual movement space of human ankle joint rehabilitation. The results of this paper can provide theoretical basis and experimental reference for the design of ankle joint rehabilitation robot with high matching degree.


Subject(s)
Ankle Joint , Biomechanical Phenomena , Humans , Movement , Range of Motion, Articular
7.
Article in Chinese | WPRIM | ID: wpr-879489

ABSTRACT

RASopathies are a group of disorders caused by germline variants of genes involved in RAS/MAPK pathway with overlapping features which may complicate their diagnosis. Since almost all RASopathies are autosomal dominant inherited disorders, the affected families may give birth to multiple children with the disease. Owning to the advance in sequencing technology, the genotype-phenotype correlation of RASopathies has become clearer in recent years, and genetic testing is now available in many places, which make prenatal diagnosis for couples with increased risk possible. For de novo variants of RASopathies, prenatal diagnosis is still difficult as the findings in routine ultrasonography are not specific enough. Nevertheless, certain findings may still be used as clues for prenatal diagnosis. This article overviews the common disorders of RASopathies, with an emphasis on the features that can be used as clues for the prenatal diagnosis of RASopathies.


Subject(s)
Female , Genes, ras , Humans , MAP Kinase Signaling System/genetics , Pregnancy , Prenatal Diagnosis
8.
Article in Chinese | WPRIM | ID: wpr-870608

ABSTRACT

Objective:To explore the effect of miR-223-3p regulating FOXO3a-mediated autophagy in hepatic injury-reperfusion injury (LIRI).Methods:The model of hepatic ischemia-reperfusion injury (IR) was established in C57BL6 mice. According to different reperfusion timepoints, mice were randomly divided into 2 h, 6 h, 12 h and 24 h group. For sham group, there was no intraoperative clamping of hepatic pedicle. Murine hepatic AML12 cells were treated with miR-223-3p mimics, miR-223-3p inhibitor and FOXO3a interfering RNA. A hypoxic 1 h reoxygenation 6 h model was established. And miRNA-NC, miR-223-3p mimics, miR-223-3p inhibitor and siRNA-NC and FOXO3a siRNA groups were assigned. Hepatic injury and apoptosis were detected by hematoxylin eosin or TdT-mediated nick end labeling (HE/TUNEL) at different timepoints. The changes of proliferating cell nuclear antigen (PCNA) and Caspase-3 in hepatocytes were detected by immunohistochemistry. Reverse transcription-polymerase chain reaction (RT-PCR) and Western blot were employed for detecting the expressions of miR-223-3p, FOXO3a, LC3, p62 and Caspase-3 in hepatocytes.Results:The results of HE/TUNEL indicated that reperfusion injury and apoptosis of hepatic tissue were most severe in 12 h group. In hepatic ischemia-reperfusion model, RT-PCR results showed that the expressions of miR-223-3p and FOXO3a were higher in IR group than those in sham group (1.00±0), the expression level of miR-223-3p mRNA peaked at 12 h (9.13±2.12) after reperfusion and FOXO3a was the highest at 6 h (5.23±0.90, P<0.05). Western blot showed that the expression of FOXO3a peaked at 6 h post-reperfusion and the expressions of LC3 and caspase-3 were the highest at 12 h. ( P<0.05). In the model of cell hypoxia and reoxygenation, RT-PCR indicated that the expression of FOXO3a mRNA decreased in miR-223-3p mimics group (0.45±0.21) as compared with miRNA-NC group (1.00±0). In contrast, miR-223-3p inhibitor group increased (2.73±0.53, P<0.05). Western blot indicated that FOXO3a protein expression was highest in miR-223-3p inhibitor and miR-223-3p mimics groups whereas LC3 and Caspase-3 were the highest in miR-223-3p mimics group ( P<0.05). The expression of FOXO3a was higher in siRNA-NC group than that in FOXO3a siRNA group while the expressions of Caspase-3 and LC3 were the higher in FOXO3a siRNA group. Conclusions:FOXO3a has protective effect on hepatic ischemia-reperfusion injury. It may be related to its inhibition of autophagy and apoptosis and miR-223-3p promotes injury through a down-regulation of FOXO3a-mediated autophagy. It suggests that miR-223-3p and FOXO3a are negatively correlated and may be potential gene therapeutic targets for hepatic injury.

9.
Article in Chinese | WPRIM | ID: wpr-869920

ABSTRACT

Objective:To evaluate the effect of fascia iliaca compartment block (FICB) on postoperative delirium in elderly patients undergoing total hip arthroplasty (THA).Methods:One hundred and two patients of both sexes, aged ≥ 65 yr, of American Society of Anesthesiologists physical status Ⅱ or Ⅲ, with body mass index ≤ 35 kg/m 2, undergoing elective THA under combined spinal-epidural anesthesia, were divided into 2 groups ( n=51 each) using a random number table method: FICB group and patient-controlled intravenous analgesia (PCIA) group.In group FICB, FICB was performed under ultrasound guidance after operation, 0.5% ropivacaine 30 ml (a loading dose) was given after successful insertion of the catheter, then the analgesic pump was connected, the analgesia solution contained 0.25% ropivacaine in 275 ml of normal saline, and the pump was set up with a 0.5 ml bolus dose, a 15 min lockout interval and background infusion at a rate of 5 ml/h.In group PCIA, the PCIA solution contained fentanyl 10 μg/ml in 100 ml of normal saline, and the pump was set up with a 1 ml bolus dose, a 10 min lockout interval and background infusion at a rate of 2 ml/h.Analgesia was maintained until 48 h after operation, and the visual analogue scale (VAS) score was maintained ≤4 in the two groups.When the VAS score was >4, the analgesic pump was pressed first followed by 10-20 min of observation.When the VAS score was still >4, flurbiprofen axetil 50 mg was intravenously injected for rescue analgesia.The Confusion Assessment Method was used to assess the development of delirium within 48 h after operation.The requirement for rescue analgesia and development of nausea and vomiting, urinary retention, constipation and pruritus were recorded within 48 h after operation.The serum concentrations of interleukin-6 (IL-6), IL-8, tumor necrosis factor-alpha and S100β protein were measured at 24 h before operation and 24 and 48 h after operation. Results:Compared with group PCIA, the incidence of postoperative delirium was significantly decreased after operation, the serum concentration of S100β protein was decreased at 24 and 48 h after operation ( P<0.05), and no significant change was found in the requirement for rescue analgesia, incidence of nausea and vomiting, urinary retention, constipation and pruritus after operation, and serum concentrations of IL-6, IL-8 and tumor necrosis factor-alpha at each time point in group FICB ( P>0.05). Conclusion:FICB can reduce the development of postoperative delirium in elderly patients undergoing THA.

10.
Chinese Journal of Radiology ; (12): 573-577, 2020.
Article in Chinese | WPRIM | ID: wpr-868318

ABSTRACT

Objective:To explore the detection rate, missed diagnosis rate, and clinical significance of incidental extra-hip findings (IEHFs) in hip joint MRI.Methods:The data of 1 734 cases who underwent MRI examination of hip joint from September 2014 to September 2018 at the First Central Hospital of Baoding City were retrospectively analyzed. According to the revised CT colonography reporting and data system (C-RADS), the IEHFs were divided into 4 types using structural imaging reading method. E1 type was anatomical variation; E2 type was sign without clinical significance; E3 type was sign with little clinical significance; E4 type was sign with important clinical significance. The types and distributions of IEHFs were analyzed, and the results of structural imaging reading were compared with those of the initial MRI reports. The missed diagnosis rate was calculated in this group.Results:Among the 1 734 patients, 1 651 of IEHFs were found in 1 064 patients. There were 1 080 E2 type IEHFs (65.4%, 1 080/1 651), with cervical cysts (26.0%, 281/1 080) accounting for the largest number. There were 354 IEHFs of E3 type (21.4%, 354/1 651), with most cases were prostatic hyperplasia (47.2%, 167/354). There were 217 IEHFs of E4 type (13.1%, 217/1 651), most of which were the enlarged lymph nodes in the inguinal region (30.9%, 67/217). E2 and E3 IEHFs accounted for a great proportion in male patients. The proportion of E2 IEHFs was the largest in female patients. There was significant difference in IEHFs composition between male and female patients (χ2=294.080, P<0.001). The IEHFs of patients under 60 years old were mainly E2 type, while those of over 60 years old patients were mainly E3 type. There was significant difference in IEHFs composition among different age groups (χ2=206.702, P<0.001). The overall missed diagnosis rate of IEHFs was 85.2% (1 406/1 651). The missed diagnosis rate of E2 was the highest (91.1%, 984/1 080), and that of E4 was the lowest (63.1%, 137/217). Conclusion:The incidence of IEHFs in patients undergoing hip joint MRI are prevalent. The structural imaging reading method can increase the detection of IEHFs. Therefore, it is suggested that revised C-RADS be used to grade IEHFs to reduce the rate of missed diagnosis.

11.
Chinese Journal of Oncology ; (12): 99-104, 2020.
Article in Chinese | WPRIM | ID: wpr-799549

ABSTRACT

Objective@#To investigate the effects of c-Met inhibitor AMG-102 on the proliferation and apoptosis of laryngeal squamous carcinoma Hep-2 cells and the underlying mechanism.@*Methods@#Laryngeal squamous carcinoma cell line Hep-2 cells were treated with 2.5, 5 and 10 μmol/L AMG-102, respectively. The proliferation activities of Hep-2 cells were detected by 3-(4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2H-tetrazolium bromide (MTT). The apoptotic rate of Hep-2 cells was detected by flow cytometry analysis and Hoechst staining. The mRNA expression levels of apoptosis-related genes were detected by real-time quantitative polymerase Chain reaction (RT-qPCR), and the protein expressions of c-Met/PI3K/AKT pathway were detected by western blot.@*Results@#Compared with the control group, the proliferation rates of Hep-2 cells treated with 2.5, 5 and 10 μmol/L AMG-102 for 24 hours were (89.8±1.1)%, (79.8±1.0)% and (69.1±1.2)%, respectively; for 48 hours were (76.8±2.0)%, (60.2±1.1)% and (49.8±1.2)%, respectively; for 72 hours were (50.1±2.0)%, (41.5±1.1)% and (33.6±1.0), respectively, with significant differences (all P<0.05). The apoptotic rates of Hep-2 cells treated with 2.5, 5 and 10 μmol/L AMG-102 for 48 hours were (16.09±1.53)%, (27.51±2.02)% and (36.57±1.42)%, respectively, which were significantly higher than (3.62±0.10) % in the control group (all P<0.05). After treated with 2.5, 5 and 10 μmol/L AMG-102 for 48 hours, the relative expression levels of Bcl-2 mRNA in Hep-2 cells were 0.58±0.13, 0.38±0.12 and 0.20±0.13, respectively; the relative protein expression of p-Met were 80.0±3.8, 50.6±4.2 and 28.5±1.3, respectively; the relative protein expression of p-PI3K were 87.1±0.9, 54.2±1.2 and 21.0±1.2, respectively; the relative protein expression of p-AKT were 98.7±5.6, 56.9±3.2 and 32.2±4.3, respectively; which were significantly lower than those in the control group (all P<0.05). The relative expression levels of Bax mRNA were 1.78±0.13, 2.37±0.14 and 3.05±0.13, respectively, and the relative expression levels of caspase-3 mRNA were 1.98±0.14, 2.47±0.14 and 3.15±0.13, respectively, which were significantly higher than those in the control group (all P<0.05).@*Conclusion@#c-Met inhibitor AMG-102 could inhibit the proliferation and induce apoptosis of laryngeal squamous carcinoma Hep-2 cells by regulating the c-Met/PI3K/Akt pathway.

12.
Article in Chinese | WPRIM | ID: wpr-828163

ABSTRACT

In order to reduce the impact caused by the contact between the foot and the ground when wearing the lower extremity exoskeleton under the condition of high load, this paper proposed an exoskeleton foot mechanism for improving the foot comfort, and optimized the key index of its influence on the comfort. Firstly, the physical model of foot mechanism was established based on the characteristics of foot stress in gait period, and then the mathematical model of vibration was abstracted. The correctness of the model was verified by the finite element analysis software ANSYS. Then, this paper analyzed the influence of vibration parameters on absolute transmissibility based on vibration mathematical model, and optimized vibration parameters with MATLAB genetic algorithm toolbox. Finally, this paper took white noise to simulate the road elevation as the vibration input, and used the visual simulation tool Simulink in MATLAB and the vibration equation to construct the acceleration simulation model, and then calculated the vibration weighted root mean square acceleration value of the foot. The results of this study show that this foot comfort mechanism can meet the comfort indexes of vibration absorption and plantar pressure, and this paper provides a relatively complete method for the design of exoskeleton foot mechanism, which has reference significance for the design of other exoskeleton foot and ankle joint rehabilitation mechanism.


Subject(s)
Acceleration , Ankle Joint , Biomechanical Phenomena , Exoskeleton Device , Finite Element Analysis , Foot , Gait , Humans , Lower Extremity , Models, Theoretical , Vibration
13.
Article in Chinese | WPRIM | ID: wpr-826527

ABSTRACT

With the application of BACs-on-Beads (BoBs) and array-comparative genome hybridization (aCGH) technologies in prenatal diagnosis, microdeletion/microduplications at Xp22.3 have been frequently detected. However, the relatively high prevalence and lack of knowledge of such disorders have brought difficulties for clinical genetic counseling. Here, recent progress of research on microdeletion/microduplications at Xp22.3, including epidemiology, pathogenesis, clinical manifestation, and prenatal diagnosis, is reviewed.


Subject(s)
Chromosomes, Human, X , Genetics , Comparative Genomic Hybridization , Female , Genetic Counseling , Humans , Karyotyping , Pregnancy , Prenatal Diagnosis , Research
14.
Article in Chinese | WPRIM | ID: wpr-826484

ABSTRACT

Genetic counseling for ring chromosomes, particularly hereditary ring chromosomes, is still difficult. In recent years, molecular biology has provided more clues for the genetic mechanism of ring chromosomes. In this paper, the epidemiology, pathogenesis, clinical phenotype and prenatal diagnosis of ring chromosomes are reviewed.

15.
Neuroscience Bulletin ; (6): 461-470, 2019.
Article in English | WPRIM | ID: wpr-775428

ABSTRACT

Gastrodin is a phenolic glycoside that has been demonstrated to provide neuroprotection in preclinical models of central nervous system disease, but its effect in subarachnoid hemorrhage (SAH) remains unclear. In this study, we showed that intraperitoneal administration of gastrodin (100 mg/kg per day) significantly attenuated the SAH-induced neurological deficit, brain edema, and increased blood-brain barrier permeability in rats. Meanwhile, gastrodin treatment significantly reduced the SAH-induced elevation of glutamate concentration in the cerebrospinal fluid and the intracellular Ca overload. Moreover, gastrodin suppressed the SAH-induced microglial activation, astrocyte activation, and neuronal apoptosis. Mechanistically, gastrodin significantly reduced the oxidative stress and inflammatory response, up-regulated the expression of nuclear factor erythroid 2-related factor 2, heme oxygenase-1, phospho-Akt and B-cell lymphoma 2, and down-regulated the expression of BCL2-associated X protein and cleaved caspase-3. Our results suggested that the administration of gastrodin provides neuroprotection against early brain injury after experimental SAH.


Subject(s)
Animals , Apoptosis , Astrocytes , Metabolism , Benzyl Alcohols , Blood-Brain Barrier , Metabolism , Brain , Metabolism , Brain Edema , Calcium , Metabolism , Glucosides , Glutamic Acid , Metabolism , Male , Microglia , Metabolism , Neurons , Neuroprotective Agents , Oxidative Stress , Rats, Sprague-Dawley , Subarachnoid Hemorrhage , Metabolism
16.
Article in Chinese | WPRIM | ID: wpr-801414

ABSTRACT

Objective@#To investigate the association between the whole blood riboflavin level and the occurrence, development and prognosis of esophageal squamous cell carcinoma (ESCC) in China. @*Methods@#From March 2014 to September 2018, ESCC patients from three hospitals (the Affiliated Hospital of Medical College of Shantou University, Shantou Central Hospital in Southern Chaoshan area and First Affiliated Hospital of Zhengzhou University in Northern Taihang Mountain) were selected as a case group; non-esophageal patients who had a physical examination were selected as a control group. The case and control group were paired by age (±5 years) and a 1:1 ration. A total of 1 528 subjects were enrolled including 764 patients in the case group and 764 patients in the control group. About 3-5 ml venous blood samples were collected, and the erythrocyte glutathione reductase activity coefficient (GRAC) was measured to assess the whole blood riboflavin level. A multivariate conditional logistic regression model was used to analyze the association between the GRAC and the risk of ESCC. The association between the GRAC and the prognosis of ESCC was analyzed by using Cox proportional risk regression model based on 288 patients with complete survival data. They were divided into two groups, the high GRAC group (GRAC≥7.87) group and the low GRAC group (GRAC<7.87) according to the strongest correlation between the total survival time, survival outcome and GRAC (GRAC=7.87). @*Results@#Among the 1 528 patients, 958 patients were from Southern Chaoshan area, including 479 patients in the case group with an average age about (59.90±9.34) years and 479 patients in the control group with an average age about (59.55±8.77) years. Other 570 patients were from Northern Taihang Mountain area, including 285 patients in the case group with an average age (58.39±5.19) years and 285 patients in the control group with an average age about (58.74±4.57) years. The multivariate conditional logistic regression showed that the OR (95%CI) of the GRAC and the risk of ESCC was 1.009 (0.998-1.019). The Cox proportional hazard regression model analysis showed that the HR (95%CI) of the high GRAC group was 1.712 (1.034-2.824) compared with the low GRAC group in the 50-70 years group. @*Conclusion@#The whole blood riboflavin level might not be associated with the occurrence of ESCC. The high whole blood riboflavin level would be more beneficial to the prognosis of ESCC patients aged 50-70 years.

17.
Chinese Journal of Oncology ; (12): 909-917, 2019.
Article in Chinese | WPRIM | ID: wpr-800449

ABSTRACT

Objective@#To investigate the effect of c-Met inhibitor AMG-102 on proliferation and radiosensitivity in laryngeal squamous carcinoma cells.@*Methods@#The effects of AMG-102 on proliferation and radiosensitivity of laryngeal squamous carcinoma cell lines Hep-2 and KBV200 were detected by 3-(4, 5-dimethy-2-thiazolyl)-2, 5-diphenyl-2H tetrazolium bromide (MTT) assay and colony formation assay, respectively. The apoptosis of Hep-2 and KBV200 cells was detected by flow cytometry. The expression levels of c-Met, phospho-Met (p-Met), cleaved caspase-3 and Akt/p-Akt, Erk/p-Erk were detected by Western blot. Specific small interfering RNA targeting c-Met or plasmid of c-Met were transfected into Hep-2 and KBV200 cells to investigate the cell sensitivity to AMG-102.@*Results@#Compared with KBV200 cells, Hep-2 cells were more sensitive to AMG-102 with IC50 of 14 and 9 μmol/L, respectively. The relative expression levels of c-Met and p-Met proteins in Hep-2 cells were 194.48±0.57 and 177.76±1.53, respectively, which were significantly higher than those in KBV200 cells (171.24±1.00 and 115.37±0.56, respectively, P<0.001 for both). Exogenous hepatocyte growth factor (HGF) was added to increase the expression level of p-Met protein in KBV200 cells. The results showed that AMG-102 significantly reduced the expression of p-Met in KBV200 cells treated with HGF (P<0.001). Compared with the dimethyl sulfoxide (DMSO) group, AMG-102 treatment combined with radiotherapy significantly increased the radiosensitivity of Hep-2 cells (SER=1.28, P<0.001). However, AMG-102 had little effect on the radiosensitivity of KBV200 cells (SER=1.18, P=0.002). Compared with the 4 Gy radiotherapy alone group and the 5 μmol/L of AMG-102 alone treatment group, the apoptosis rate of Hep-2 cells in the combined treatment group was significantly increased. Meanwhile, the expression level of cleaved caspase-3 protein was also markedly increased. However, there were no significant changes in the apoptotic rate and cleaved caspase-3 expression in each treatment group of KBV200 cells. Compared with DMSO treatment group, the expression levels of p-Met, p-Akt and p-Erk were significantly decreased in the 4 Gy radiotherapy group, 5 μmol/L of AMG-102 treatment group and combined treatment group of Hep-2 cells. And the levels of p-Met, p-Akt and p-Erk in the combined treatment group were significantly lower than those in the 4 Gy radiotherapy alone group and 5 μmol/L of AMG-102 treatment alone group. By contrast, in KBV200 cells, the expression of p-Met, p-Akt and p-Erk in each group was not changed. The relative expression of p-Met in Hep-2 cells before and after radiotherapy at 30 min, 1 h, 4 h, 8 h, 24 h were 99.89±0.61, 138.62±1.00, 163.07±5.00, 87.80±1.85, 90.67±0.65 and 94.09±1.41, respectively. The level of p-Met was slightly increased after radiotherapy at 30 min and 1 h (P<0.001 for all), whereas it was significantly decreased from 4 h to 24 h after radiotherapy (P<0.05 for all). By contrast, the expression of p-Met in KBV200 cells did not change with time after radiotherapy (P>0.05). The sensitivity of Hep-2 cells to AMG-102 was decreased after silencing of c-Met, while the sensitivity of KBV200 cells to AMG-102 was not significantly changed (P>0.05). Moreover, the radiosensitivity of Hep-2 cells in c-Met knockdown group had a slightly increasing trend (SER=1.07, P=0.068). After the treatment with 10 μmol/L of AMG-102, the proliferation rate of c-Met ectopically expressed KBV200 cells was 60.05%±3.23%, It was significantly lower than that of the blank control 90.08%±1.04% and siRNA negative control (90.12%±1.01%, P<0.001). The results suggested that the overexpression of c-Met in KBV200 cells increased the radiosensitivity to AMG-102, whereas depletion of c-Met resulted in resistance to AMG-102 in Hep-2 cells. Furthermore, the radiosensitivity of KBV200 cells that overexpressed c-Met showed a decreased trend (SER=0.7, P=0.005).@*Conclusions@#c-Met inhibitor AMG-102 has a significant inhibitory effect on the proliferation of c-Met overexpressing laryngeal squamous carcinoma cells, leading to increased radiosensitivity. It suggests that molecular targeted therapy against c-Met receptor is more effective in c-Met overexpressed subtype of laryngeal squamous cell carcinoma.

18.
Chinese Journal of Hepatology ; (12): 982-988, 2019.
Article in Chinese | WPRIM | ID: wpr-800433

ABSTRACT

Objective@#To observe the therapeutic effect of terlipressin on refractory ascites (RA) in cirrhosis, and its role and impact on acute kidney injury (AKI).@*Methods@#A non-randomized controlled clinical trial data of 111 hospitalized cases of liver cirrhosis accompanied with RA was collected from Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Zhongshan Hospital of Hubei Province, The First Affiliated Hospital of Zhengzhou University, The First Affiliated Hospital of Medical School of Zhejiang University, and People's Hospital of Pudong New Area of Shanghai between March 2015 and March 2017. 26 cases of conventional treatment group (control group) were divided into two subgroups: RA without AKI (RA-NAKI) and RA with AKI (RA-AKI), and each subgroup consisted 13 cases. Patients with bacterial infection were treated with diuretics, albumin supplementation and antibiotics. 85 cases were presented in terlipressin combined treatment group, of which 27 cases were of RA-NAKI and 58 cases were of RA-AKI. Control group was injected terlipressin 1mg of intravenous drip or static push (once q6 h ~ 12 h) for more than 5 days. The treatment duration lasted for 2 weeks with 4 weeks of follow-up. Body weight, 24-hour urine volume, abdominal circumference, mean arterial pressure (MAP), liver and kidney function, anterior hepatic ascites, deepest point of ascites, and ultrasonographic detection of ascites in supine position before treatment, one and two weeks after treatment and 4 weeks after follow-up were compared. Count data were tested by χ 2. Samples of four groups at baseline were compared. One-way analysis of variance was used for normal distribution data and Kruskal-Wallis H test for non-normal distribution data. Repeated measures analysis of variance was used to compare the difference in efficacy between different time points before and after treatment in the group. The LSD method of one-way ANOVA was used to compare the two groups. A t-test of independent samples was used to compare the efficacy of different time series between the two groups. Mann-Whitney rank- sum test was used to compare the data of non-normal distribution between the two groups.@*Results@#(1) Baseline data were compared among 4 subgroups of terlipressin RA-NAKI and control RA-AKI. Control group age was higher than that of terlipressin group, and the serum creatinine (SCr) of the RA-AKI group was higher than RA-NAKI group, and there was no significant difference in the rest of the baseline data and the combined medication (P > 0.05). (2) An intra-group comparison between control and trelipressin before and after treatment showed that all patients had lower body mass, abdominal circumference and deepest ascites, and higher serum albumin (P < 0.05). 24-hour urine volume and MAP was significantly increased in the terlipressin group, while the pre-ascites, SCr and child Turcotte Pugh (CTP) scores were decreased. Body weight, abdominal circumference, pre-ascites, and deepest ascites of the terlipressin group were decreased, while MAP was increased during the treatment and follow-up periods. The differences were statistically significant when compared with the control group at the same time (P < 0.05). There was a statistically significant difference in the increase of 24-h urine volume in the terlipressin group compared with the control group (P < 0.05). The decrease in SCr and CTP in the terlipressin group after 2 weeks of treatment and 4 weeks of follow-up was statistically significant compared with the control group (P < 0.05). (3) Among the two subgroups of RA-AKI and RA-NAKI in the terlipressin group, the baseline SCr value of the former was higher than that of the latter. After treatment, the body weight, abdominal circumference, pre-ascites, deepest ascites and CTP scores were decreased. In the RA-AKI group, 24-hour urine volume, MAP, SCr and serum albumin concentration were significantly increased. The difference between the two subgroups before and after treatment was compared, and the body weight of RA-AKI group at 1, 2 weeks of treatment and 4 weeks of follow-up was significantly lower than RA-NAKI group, which were (- 2.3 ± 0.2 vs. - 1.5 ± 0.2) kg, (- 4.1 ± 0.2 vs. - 2.6 ± 0.2) kg, (- 4.2 ± 0.3 vs. - 2.4 ± 0.3) kg, respectively. RA-NAKI group urine volume was significantly increased at 2 weeks of treatment and 4 weeks of follow-up, which was (468 ± 42 vs. 110 ± 131) ml, (272 ± 34 ml vs. 11 ± 112) ml, respectively. SCr reduction (18.3 ± 4.7 vs. 0.9 ± 2.4) µmol/l at 4 weeks of follow-up was apparent in RA-NAKI group, and the difference was statistically significant (P < 0.05).@*Conclusion@#Addition of terlipressin to conventional treatment may significantly increase MAP, 24-h urine volume, improve renal function and promote ascites resolution in patients with refractory cirrhotic ascites. Moreover, its combination effect is more obvious in AKI patients, and adverse reactions are mild.

19.
Article in Chinese | WPRIM | ID: wpr-807897

ABSTRACT

@#Dabigatran etexilate mesylate(DE)and tadalafil(TD)are BCS class II drugs with poor water solubility. 〓 In this study coamorphization technique was used to improve their solubilities/dissolutions and hence to enhance their oral absorptions. The coamorphous DE-TD were prepared by solvent-evaporation method and characterized by PXRD, DSC, FTIR and TGA. In addition, dissolution behavior and physical stability were also investigated. Only halo pattern and a single Tg of 119 °C was observed on the PXRD and DSC of the co-evaporated product, respectively, indicating the formation of coamorphous DE-TD. FTIR result suggested that a hydrogen bond was probably formed between N-H group of DE and C==O group of TD. In comparison to crystalline counterparts, coamorphous DE-TD showed a significantly improved intrinsic dissolution rate and prolonged supersaturation time in intrinsic dissolution and supersaturation dissolution studies, respectively. No crystallization was observed under affecting factors testing(30 days)as well as long-term and accelerated stability testing(90 days)for the prepared coamorphous DE-TD under 25°C/60%RH or 40°C/75%RH, while amorphous DE crystalized at 10 days under 25 ℃/75% RH.

20.
Article in Chinese | WPRIM | ID: wpr-755956

ABSTRACT

Objective To explore the diagnosis and treatment of parvovirus B19 infection-associated anemia after pediatric liver transplantation (LT) .Methods The clinical data were retrospectively reviewed for 2 children with severe anemia caused by parvovirus B19 infection after LT .Case 1 was a 2-year-old girl with a weight of 10 .7 kg .Classical orthotopic LT was performed due to ornithine carbamoyltransferase deficiency . Hemoglobin level began to progressively decline since Day 2 post-transplantation .And case 2 was a 5-month-old girl with an age of 5 months and a weight of 7 .2 kg .She underwent classic orthotopic LT for biliary atresia and decompensated liver cirrhosis .Hemoglobin level progressively declined at nearly 2 months post-transplantation . Results In case 1 ,bone marrow aspiration was performed at Day 54 post-transplantation .There was pure red cell aplasia and the detection of microvirus B19 nucleic acid was positive .Intravenous immunoglobulin was prescribed at a dose of 2 .5 g/day for 10 days ,tacrolimus was switched to cyclosporine and hemoglobin level spiked from 62 to 105 g/L after one-month treatment .In case 2 ,hemoglobin decreased to 44 g/L at 2 .5 months post-transplantation and the result of polymerase chain reaction of parvovirus B 19 was 9 .7 × 107 copies/ml .Then intravenous immunoglobulin was dosed at 2 .5 g/day for 10 days and hemoglobin level rose to 122 g/L at 25 days after treatment . Hemoglobin level decreased to 63 g/L again at 4 .5 months post-transplantation .Anemia was corrected by intravenous immunoglobulin injection plus a temporary discontinuation of tacrolimus and a reduced dose of tacrolimus .Conclusions Infection of parvovirus B19 can cause pure red cell aplasia after LT in children . Early diagnosis with intravenous immunoglobulin and modification of immunosuppressive regimen can obtain excellent therapeutic efficacies .

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