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Background: Previous studies have revealed dexmedetomidine have potential protective effects on vital organs by inhibiting the release of inflammatory cytokines. To investigate the effects of dexmedetomidine on sepsis, especially in the initial inflammatory stage of sepsis. RAW264.7 cells were used as the cell model in this study to elucidate the underlying mechanisms. Methods: In this study, we conducted several assays to investigate the mechanisms of dexmedetomidine and HOTAIR in sepsis. Cell viability was assessed using the CCK-8 kit, while inflammation responses were measured using ELISA for IL-1ß, IL-6, and TNF-α. Additionally, we employed qPCR, MeRIP, and RIP to further explore the underlying mechanisms. Results: Our findings indicate that dexmedetomidine treatment enhanced cell viability and reduced the production of inflammatory cytokines in LPS-treated RAW264.7 cells. Furthermore, we observed that the expression of HOTAIR was increased in LPS-treated RAW264.7 cells, which was then decreased upon dexmedetomidine pre-treatment. Further investigation demonstrated that HOTAIR could counteract the beneficial effects of dexmedetomidine on cell viability and cytokine production. Interestingly, we discovered that YTHDF1 targeted HOTAIR and was upregulated in LPS-treated RAW264.7 cells, but reduced in dexmedetomidine treatment. We also found that YTHDF1 increased HOTAIR and HOTAIR m6A levels. Conclusions: Collectively, our results suggest that dexmedetomidine downregulates HOTAIR and YTHDF1 expression, which in turn inhibits the biological behavior of LPS-treated RAW264.7 cells. This finding has potential implications for the prevention and treatment of sepsis-induced kidney injury.
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INTRODUCTION: Sessile plants engage in trade-offs between growth and defense capacity in response to fluctuating environmental cues. MYB is an important transcription factor that plays many important roles in controlling plant growth and defense. However, the mechanism behind how it keeps a balance between these two physiological processes is still largely unknown. OBJECTIVES: Our work focuses on the dissection of the molecular mechanism by which GhMYB33 regulates plant growth and defense. METHODS: The CRISPR/Cas9 technique was used to generate mutants for deciphering GhMYB33 functions. Yeast two-hybrid, luciferase complementary imaging, and co-immunoprecipitation assays were used to prove that proteins interact with each other. We used the electrophoretic mobility shift assay, yeast one-hybrid, and luciferase activity assays to analyze GhMYB33 acting as a promoter. A ß-glucuronidase fusion reporter and 5' RNA ligase mediated amplification of cDNA ends analysis showed that ghr-miR319c directedly cleaved the GhMYB33 mRNA. RESULTS: Overexpressing miR319c-resistant GhMYB33 (rGhMYB33) promoted plant growth, accompanied by a significant decline in resistance against Verticillium dahliae. Conversely, its knockout mutant, ghmyb33, demonstrated growth restriction and concomitant augmentation of V. dahliae resistance. GhMYB33 was found to couple with the DELLA protein GhGAI1 and bind to the specific cis-elements of GhSPL9 and GhDFR1 promoters, thereby modulating internode elongation and plant resistance in V. dahliae infection. The ghr-miR319c was discovered to target and suppress GhMYB33 expression. The overexpression of ghr-miR319c led to enhanced plant resistance and a simultaneous reduction in plant height. CONCLUSION: Our findings demonstrate that GhMYB33 encodes a hub protein and controls the expression of GhSPL9 and GhDFR1, implicating a pivotal role for the miR319c-MYB33 module to regulate the trade-offs between plant growth and defense.
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Objective: To explore the characteristics of Banna miniature pig liver failure induced by amanita exitialis. Methods: From September to October 2020, a reverse high performance liquid chromatography (RP-HPLC) method was used to determine the toxin content of amanita exitialis solution, and 2.0 mg/kg amanita exitialis solution (α-amanitins+β-amanitins) was administered orally to Banna miniature pigs. Toxic symptoms, blood biochemical indexes and histopathological changes of liver, heart and kidney were observed at each time point. Results: All Banna miniature pigs died within 76 h of exposure, and different degrees of digestive tract symptoms such as nausea, vomiting and diarrhea appeared between 6 and 36 h. The biochemical indexes of alanine aminotransferase, aspartate aminotransferase, total bilirubin, lactate dehydrogenase, myoglobin, creatine kinase isoenzyme, blood urea nitrogen and creatinine increased significantly at 52 h after exposure, and the differences were statistically significant compared with 0 h (P<0.05). The bleeding of liver and heart was obvious under macroscopic and microscopic observation, hepatocyte necrosis, renal tubule epithelial cell swelling. Conclusion: Large dose of amanita exitialis can cause acute liver failure of Banna miniature pigs, which is in line with the pathophysiological characteristics of acute liver failure, and lays a foundation for further research on the toxic mechanism and detoxification drugs of amanita exitialis induced liver failure.
Subject(s)
Animals , Swine , Amanitins/metabolism , Swine, Miniature/metabolism , Amanita/metabolism , Liver Failure, Acute , Mushroom Poisoning/diagnosisABSTRACT
Objective:To explore the value of 99Tc m-diethylene triamine pentaacetic acid (DTPA) renal dynamic imaging combined with double plasma glomerular filtration rate (GFR) in the evaluation of split renal function in adult patients undergoing interventional therapy for unilateral hydronephrosis. Methods:Retrospective analysis of 79 patients (39 males, 40 females, age (41.4±16.3) years) with unilateral hydronephrosis in First Hospital of Shanxi Medical University from January 2015 to December 2019 were performed. All patients underwent surgery to relive obstruction. 99Tc m-DTPA renal dynamic imaging was performed before and after surgery to obtain bilateral renogram and GFR was measured by Gates method (marked as gGFR). Meanwhile, the corrected double plasma method was used to measure the GFR of both kidneys (marked as dGFR all). Double plasma GFR of the affected kidney (marked as dGFR) was obtained according to the ratio of renogram and dGFR all. Patients were divided into mild to moderate group (dGFR≥20 and <40 ml·min -1·1.73 m -2 ), severe group (dGFR≥10 and <20 ml·min -1·1.73 m -2) and extremely severe group (dGFR<10 ml·min -1·1.73 m -2) according to dGFR before surgery. Postoperative renal dynamic imaging and dGFR were reexamined to analyze the GFR recovery values (ΔgGFR, ΔdGFR). Data were analyzed by χ2 test, paired t test, one-way analysis of variance, Pearson correlation analysis and Bland-Altman consistency test. Results:There were 34 patients in mild to moderate group, 24 patients in severe group, 21 patients in extremely severe group. Significant differences were found in both gGFR and dGFR before and after surgery in mild to moderate group, as well as those in the extremely severe group ( t values: 2.42-3.34, all P<0.05 ), but there was no significant difference in severe group ( t values: 1.24, 1.27, both P>0.05). The ΔgGFR and ΔdGFR were not significantly different among three groups ( F values: 0.45, 0.34, both P>0.05). GFR mesured by the 2 methods (gGFR, dGFR) before and after operation correlated well in each group (before surgery, r values: 0.68-0.82; after surgery, r values: 0.80-0.91, all P<0.001). GFR measured by the two methods showed poor consistency in the mild to moderate and severe groups (>5%(5.88%, 2/34; 8.33%, 2/24) values before and after surgery exceeding 95% consistency limit), while good consistency was demonstrated in the extremely severe group (<5%(4.76%, 1/21) values before and after surgery exceeding 95% consistency limit). Conclusions:Preoperative GFR in patients with unilateral hydronephrosis cannot predict the recovery of renal function after interventional treatment. For the evaluation of split renal GFR in patients with unilateral upper urinary tract obstructive hydronephrosis, corrected dual plasma method combined with kidney ratio of renogram is more appropriate for the determination of GFR. Gates method has some limitations, however, it can be recommended for the evaluation of GFR in patients with extremely severe renal impairment before and after interventional surgery.
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@#Abstract: Occupational epidemiology aims to explore the effect of occupational hazards on the health of workers and understand , their mechanisms. It plays an important role in occupational health and occupational medicine.Currently occupational , , exposures in the workplace are complex and diverse and multiple factors affect workers´ health at the same time. Therefore it is important to elucidate the pathogenesis of occupational disease caused by occupational hazards and implement early - - intervention. System epidemiology collects data on multi level exposure and multi omics information to conduct network analysis - on the relationship amongrisk factors. and to study the mechanisms of exposures and health outcomes based on multi level data. , , , , Using the study design of system epidemiology occupational environmental lifestyle and social factors are combined as a , system to evaluate the health of workers which can better evaluate the adverse health effects caused by occupational hazards. - , , The studies base on multi omics design will explore the pathogenesis of occupational diseases at the molecular cellular and tissue levels to evaluate the impact of occupational hazards on workers´ health and to explore interventions from multiple - perspectives to reduce the occurrence of occupational or work related diseases.
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OBJECTIVES@#To study the association of the levels of heavy metals and trace elements during pregnancy with congenital heart defects (CHD) in offspring, and to establish a model for predicting the probability of CHD based on the levels of heavy metals and trace elements during pregnancy.@*METHODS@#Based on the prospective birth cohort study in Gansu Provincial Maternal and Child Health Hospital in 2010-2012, a nested case-control study was conducted for the follow-up observation of 14 359 pregnant women. Among the pregnant women, 97 pregnant women whose offspring were diagnosed with CHD during follow-up were enrolled as the CHD group, and 194 pregnant women whose offspring had no CHD were selected as the control group. Inductively coupled plasma mass spectrometry was used to measure the levels of heavy metals and trace elements in maternal blood samples and fetal umbilical cord blood samples. A multivariate logistic regression analysis was used to evaluate the association between heavy metal and trace elements and CHD in offspring. A nomogram model for predicting the probability of CHD in offspring was established based on the levels of heavy metals and trace elements during pregnancy.@*RESULTS@#Compared with the control group, the CHD group had significantly higher levels of aluminum (Al), natrium (Na), calcium (Ca), titanium (Ti), selenium (Se), strontium (Sr), stannum (Sn), stibium (Sb), barium (Ba), and thorium (Th) in maternal blood samples (P<0.05), as well as significantly higher levels of Al, zinc (Zn), magnesium (Mg), kalium (K), Ca, Ti, chromium (Cr), copper (Cu), arsenic (As), Se, Sr, argentum (Ag), cadmium (Cd), Sn, and plumbum (Pb) in umbilical cord blood (P<0.05). The multivariate logistic regression analysis showed that the increase in the Sb level in maternal blood was associated with the increase in the risk of CHD in offspring [adjusted odds ratio (aOR)=4.81, 95% confidence interval (CI): 1.65-14.07, P=0.004], while in umbilical cord blood, the high levels of Al (aOR=4.22, 95%CI: 1.35-13.16, P=0.013), Mg (aOR=8.00, 95%CI: 1.52-42.08, P=0.014), and Pb (aOR=3.82, 95%CI: 0.96-15.23, P=0.049) were significantly associated with the risk of CHD in offspring. The levels of Al, Th, and Sb in maternal blood and levels of Al, Mg, and Pb in umbilical cord blood were included in the predictive model for CHD in offspring based on the levels of heavy metals and trace elements during pregnancy, and the calibration curve of the nomogram predictive model was close to the ideal curve.@*CONCLUSIONS@#Increases in the levels of Al, Th, Sb, Mg, and Pb during pregnancy may indicate the increase in the risk of CHD in offspring, and the nomogram predictive model based on these indices can be used to predict the probability of CHD in offspring.
Subject(s)
Child , Female , Humans , Pregnancy , Case-Control Studies , Cohort Studies , Heart Defects, Congenital/etiology , Metals, Heavy , Prospective Studies , Trace Elements/analysisABSTRACT
The aim of this study was to establish an efficient and stable mouse model of hyperuricemic nephropathy (HN) by testing different modes of administration of potassium oxonate (PO) combined with hypoxanthine (Hx). Animal welfare and experimental procedures were in accordance with the regulations of the Animal Ethics Committee of Guangdong Pharmaceutical University. Male C57BL/6 mice were randomly divided into a control group, a PO+Hx group (i.g.; 100 mg·kg-1·d-1 and 500 mg·kg-1·d-1, respectively), and a PO+Hx group (i.p.; 100 mg·kg-1·d-1, and 500 mg·kg-1·d-1). This HN model was induced by combination of PO and Hx administration once daily for 21 days. The results of serum biochemistry showed that the levels of serum creatinine and 24 h albuminuria were increased compared with the normal group in intragastric administration of PO combined with Hx (P < 0.05), but there was no significant difference in serum uric acid and hepatic levels of xanthine oxidase. The maximum value of serum uric acid and creatinine was 349.3 μmol·L-1 and 26.4 μmol·L-1, respectively, in mice injected with PO combined with Hx. The levels of liver xanthine oxidase and 24 h albuminuria were significantly increased in mice injected with PO combined with Hx (P < 0.01). Pathological data showed that renal tubules were dilated, the epithelial cells of renal tubules were disordered, and the production of collagen fibers, reactive oxygen species (ROS) and lipid peroxidase 4-hydroxynonenal (4-HNE) were slightly increased after intragastric administration of PO combined with Hx mice. Obvious infiltration of inflammatory cells and large area of collagen deposition, with a large amount of ROS and the lipid peroxide 4-HNE were produced in mice injected with PO combined with Hx. Western blot analysis showed that the expression of fibronectin (FN) and urate transporter 1 (URAT1) was increased after intragastric administration of PO combined with Hx in mice and further increased in mice injected with PO combined with Hx. This study demonstrates that injection with 100 mg·kg-1 potassium oxonate combined with 500 mg·kg-1 hypoxanthine establishes a stable and efficient mouse HN model.
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@# AIM: To evaluate the efficacy of modified folding intraocular lens(IOL)suspension surgery in treatment of traumatic dislocation of lens surgery technique.METHODS: Prospective randomized controlled study. A total of 15 patients underwent the modified folding IOL suspension surgery. Among them, 9 patients chose Akreos AO IOL, and polypropylene sutures were used to thread the haptics of IOL. After guided to puncture out through the sclera, the ends of sutures were thermal expanded and fixed in the sclera. And 6 patients chose Tecnis ZA9003 IOL and no sutures were used. After guided the haptics to puncture out through the sclera, the ends of haptics were thermal expanded and fixed in the sclera. The best corrected visual acuity(BCVA, LogMAR)of all patients and postoperative complication were observed. RESULTS: This study included 15 patients, among them, 7 were male and 8 were female, the mean age was 64.00±9.85 years old, the mean course of diseases was 5.80±3.17 wk. There were no significant differences between the demographic and baseline clinical characteristics. After underwent the modified folding IOL suspension surgery, visual acuity of all patients were obviously improved. After 3mo of the surgery, the BCVA(LogMAR)of patients were improved from 1.28±0.56 to 0.52±0.30. More specifically, the BCVA(LogMAR)of patients who chose Akreos AO IOL were improved from 1.39±0.62 to 0.59±0.25, and those who chose Tecnis ZA9003 IOL of the BCVA(LogMAR)were improved from 1.12±0.45 to 0.42±0.35. Furthermore, there was no severe postoperative complication observed in our study. Only one patient suffered IOL dislocation and the IOL optical surface was mild oblique.CONCLUSION: Modified folding IOL suspension surgery technique resulted in good visual and outcomes with no severe complication, making it an effective option for IOL suspension surgery.
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Exosomes are messengers for intercellular communication and signal transduction. Circular RNA (circRNA) abnormal expression and regulation are involved in the occurrence and development of a variety of tumors. In the present study, exosomes in the serum of five patients with non-small cell lung cancer (NSCLC) were isolated before and after EGFR-TKIs resistance, and the circRNA expression profile was screened using a circRNA microarray. The effects of the exosome circRNA_102481 on cell proliferation and apoptosis were analyzed. The interaction between miR-30a-5p and circRNA_102481 or ROR1 was predicted by starBase software, and was confirmed by RNA pull-down and dual-luciferase reporter assays. The results showed that exosomes containing circRNA_102481 were significantly up-regulated in NSCLC with EGFR-TKIs resistance (p<0.05), and that circRNA_102481 was mainly secreted by EGFR-TKIs resistance cell via exosomes (p<0.05). Both circRNA_102481 silencing and si-circRNA_102481 transported by exosomes could inhibit EGFR-TKIs resistance cell proliferation and promote cell apoptosis and circRNA_102481 overexpression could promote EGFR-TKIs sensitive cell proliferation and inhibit cell apoptosis in vitro (p<0.05). CircRNA_102481 served as a miR-30a-5p sponge to regulate ROR1 expression (p<0.05). Furthermore, the expression of circRNA_102481 in exosomes was associated with TNM stage, tumor differentiation status, brain metastasis, and PFS and OS duration. Therefore, it was concluded that tumor-derived exosomal circRNA_ 102481 could contribute to EGFR-TKIs resistance via the microRNA-30a-5p/ROR1 axis in NSCLC. Exosomal circRNA_102481 may serve as a novel diagnostic biomarker and a therapeutic target for EGFR-TKIs resistance in NSCLC.
Subject(s)
Carcinoma, Non-Small-Cell Lung/genetics , Lung Neoplasms/blood , RNA, Circular/blood , Cell Line, Tumor , Cell Movement/physiology , Cell Proliferation/drug effects , Gene Expression Regulation, Neoplastic/genetics , Humans , Lung Neoplasms/genetics , MicroRNAs/genetics , Receptor Tyrosine Kinase-like Orphan Receptors/genetics , Receptor Tyrosine Kinase-like Orphan Receptors/metabolismABSTRACT
Objective:To establish ultra performance liquid chromatography (UPLC) fingerprint of Shengyutang and quantitative analysis method of 11 index components in this famous classical formula. Method:UPLC-diode array detector/evaporative light scattering detector (UPLC-PDA/ELSD) was used, two chromatographic conditions were established by different detectors according to the polarity of chemical components. Conditions of fingerprint 1 were as follows:ACQUITY UPLC HSS T<sub>3</sub> column (2.1 mm×100 mm, 1.8 µm) with the mobile phase of acetonitrile (A)-0.6% formic acid solution (C) for gradient elution (0-4 min, 0-4%A; 4-8 min, 4%A; 8-9 min, 4%-8%A; 9-14 min, 8%-9%A; 14-21 min, 9%-15%A; 21-26 min, 15%-17%A; 26-30 min, 17%-20%A; 30-35 min, 20%-32%A; 35-40 min, 32%-40%A; 40-50 min, 40%-80%A; 50-55 min, 80%A), the flow rate of 0.3 mL·min<sup>-1</sup>, PDA with detection wavelengths of 280 nm and 321 nm, the column temperature at 30 ℃. Conditions of fingerprint 2 were as follows:the CORTECS C<sub>18</sub> column (3.0 mm×100 mm, 2.7 µm) with the mobile phase of acetonitrile (A)-water (D) for gradient elution (0-11 min, 19%A; 11-16 min, 19%-25%A; 16-34 min, 25%-28%A; 34-47 min, 28%-47%A; 47-60 min, 47%-80%A), the flow rate of 0.4 mL·min<sup>-1</sup>, ELSD with drift tube temperature of 95 ℃, the carrier gas (air) flow rate of 2.0 L·min<sup>-1</sup>, and the column temperature at 30 ℃. UPLC-PDA/ELSD fingerprints of 15 batches of Shengyutang were established, and the similarity was evaluated by similarity evaluation system of chromatographic fingerprint of traditional Chinese medicine (2012 edition) issued by the Chinese Pharmacopoeia Commission, and the contents of eleven index components in this famous classical formula were determined. Result:The similarities of UPLC-PDA/ELSD fingerprints of 15 batches of Shengyutang were >0.98 by comparing with the control fingerprint, 27 and 16 common peaks were identified in fingerprint 1, 2, respectively. It was tested and verified that the precision, repeatability, stability, linear relationship and other results of this method all met the requirements of the 2020 edition of <italic>Chinese Pharmacopoeia</italic>. The contents of chlorogenic acid, ferulic acid, calycosin glucoside, verbascoside, senkyunolide I, senkyunolide H, senkyunolide A, ginsenoside Rg<sub>1</sub>, ginsenoside Re, ginsenoside Rb<sub>1</sub> and astragaloside A in 15 batches of Shengyutang were 0.063-0.193, 0.509-0.638, 0.160-0.318, 0.012-0.056, 0.394-0.519, 0.110-0.143, 0.031-0.097, 0.382-0.595, 0.292-0.505, 0.590-0.803, 0.142-0.367 mg·g<sup>-1</sup>, respectively. Conclusion:The established detection method meets the requirements of the 2020 edition of <italic>Chinese Pharmacopoeia</italic>, which can characterize the overall characteristics of chemical components in Shengyutang, and provide experimental basis for the quality standard research of this famous classical formula.
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Objective:To establish the ultraperformance liquid chromatography (UPLC) fingerprint of Pipa Qingfeiyin substance benchmark, and to establish a quantitative analysis method for simultaneous determination of the contents of five index components, so as to provide reference for the quality control and evaluation of this famous classical formula. Method:ACQUITY UPLC<sup>®</sup> CSH<sup>TM</sup> C<sub>18</sub> column (2.1 mm×100 mm, 1.7 μm) was used with mobile phase of acetonitrile (A)-0.1% formic acid aqueous solution (B) for gradient elution (0-7 min, 5%-7%A; 7-11 min, 7%-8%A; 11-22 min, 8%-14%A; 22-30 min, 14%-15%A; 30-35 min, 15%-25%A; 35-42 min, 25%-40%A; 42-45 min, 40%-50%A; 45-50 min, 50%-60%A), the flow rate was 0.35 mL·min<sup>-1</sup>, the column temperature was 25 ℃, the detection wavelengths were 278 nm and 248 nm. UPLC fingerprints of 15 batches of Pipa Qingfeiyin substance benchmark were established, and the "Similarity Evaluation System of Chromatographic Fingerprint of Traditional Chinese Medicine" software (2012 edition) was used for similarity analysis, and the common peaks were assigned. Cluster analysis (CA), principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) were used to evaluate the fingerprint data. UPLC fingerprint method was used to simultaneously determine the contents of five components in the substance benchmark. Result:The method validation of fingerprint and determination method was good, the similarities between 15 batches of Pipa Qingfeiyin substance benchmark and their control fingerprint were ≥0.997, 23 common peaks were identified and 11 chromatographic peaks were identified. CA, PCA and OPLS-DA divided 15 batches of the substance benchmark into two groups. The linear relationship of phellodendrine hydrochloride, chlorogenic acid, berberine hydrochloride, palmatine hydrochloride and ammonium glycyrrhizinate was good in a certain range of concentration (<italic>R</italic><sup>2</sup>>0.999), their average recovery was 96.47%-101.16%, and the contents of these five components in the substance benchmark were 0.87-2.00, 1.53-5.95, 18.45-33.97, 3.87-6.29, 1.02-4.12 mg·g<sup>-1</sup>, respectively. Conclusion:The established UPLC fingerprint and multi-index component content determination methods have strong specificity, good resolution and high sensitivity, it can be characterized except for the Ginseng Radix et Rhizoma flavor, which can provide reference for the quality control and evaluation of Pipa Qingfeiyin compound preparation.
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Clonorchiasis is one of the most important food-borne trematodiases affecting millions of people. Strategies were recommended by different organizations and control programmes were implemented but mostly in short-time periods. It's important to assess the long-term benefits and sustainability of possible control strategies on morbidity control of the disease. We developed a multi-group transmission model to describe the dynamics of C. sinensis transmission among different groups of people with different raw-fish-consumption behaviors, based on which, a full model with interventions was proposed and three common control measures (i.e., preventive chemotherapy, information, education, and communication (IEC) and environmental modification) and their possible combinations were considered. Under a typical setting of C. sinensis transmission, we simulated interventions according to different strategies and with a series of values of intervention parameters. We found that combinations of measures were much beneficial than those singly applied; higher coverages of measures had better effects; and strategies targeted on whole population performed better than that on at-risk population with raw-fish-consumption behaviors. The strategy recommended by the government of Guangdong Province, China shows good and sustainable effects, under which, the infection control (with human prevalence <5%) could be achieved within 7.84 years (95% CI: 5.78-12.16 years) in our study setting (with original observed prevalence 33.67%). Several sustainable strategies were provided, which could lead to infection control within 10 years. This study makes the effort to quantitatively assess the long-term effects of possible control strategies against C. sinensis infection under a typical transmission setting, with application of a multi-group dynamic transmission model. The proposed model is easily facilitated with other transmission settings and the simulation outputs provide useful information to support the decision-making of control strategies on clonorchiasis.
Subject(s)
Clonorchiasis/epidemiology , Clonorchiasis/prevention & control , Communicable Disease Control/methods , Disease Transmission, Infectious/prevention & control , Foodborne Diseases/epidemiology , Foodborne Diseases/prevention & control , China/epidemiology , Humans , Models, StatisticalABSTRACT
Purpose@#Hepatocellular carcinoma (HCC) patients with major portal vein tumor thrombosis (mPVTT) complications were generally characterized by extremely poor prognoses. The aim of this study was to explore the role of 18F-fluorodeoxyglucose (18F-FDG) PET/CT imaging in predicting HCC complicated by mPVTT. @*Methods@#Five hundred one HCC patients received surgery in our hospital during November 2008 to December 2014, among which 32 patients (6.4%) were diagnosed as HCC complicated by mPVTT. Six cases were excluded for reasons of complex medical conditions, including 2 cases of salvage liver transplantation, 2 cases of re-resection, 1 case of mPVTT combined with inferior vina cava tumor thrombosis, and 1 case of residual portal vein tumor thrombosis. Ultimately, 26 cases were enrolled in this study. The maximal tumor standardized uptake value (SUVmax) was identified as a predictive factor and detected. The univariate and multivariate regression analyses were performed to identify the prognostic factors for recurrence-free survival (RFS) and overall survival (OS) of HCC patients complicated by mPVTT. @*Results@#Our results showed that the median OS was 16 months. The 1-, 3-, and 5-year cumulative OS was 55.6%, 31.7%, and 31.7%, respectively. The multivariate regression analysis revealed that SUVmax ≥ 4.65 was the only independent risk factor for RFS and OS. @*Conclusion@#SUVmax was an independent predictor for RFS and OS of patients suffering from both HCC and mPVTT. L ow SUVmax could serve as an effective factor for selecting candidates with low recurrence risks and for helping with improving patient survival after surgical resection.
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Purpose@#Hepatocellular carcinoma (HCC) patients with major portal vein tumor thrombosis (mPVTT) complications were generally characterized by extremely poor prognoses. The aim of this study was to explore the role of 18F-fluorodeoxyglucose (18F-FDG) PET/CT imaging in predicting HCC complicated by mPVTT. @*Methods@#Five hundred one HCC patients received surgery in our hospital during November 2008 to December 2014, among which 32 patients (6.4%) were diagnosed as HCC complicated by mPVTT. Six cases were excluded for reasons of complex medical conditions, including 2 cases of salvage liver transplantation, 2 cases of re-resection, 1 case of mPVTT combined with inferior vina cava tumor thrombosis, and 1 case of residual portal vein tumor thrombosis. Ultimately, 26 cases were enrolled in this study. The maximal tumor standardized uptake value (SUVmax) was identified as a predictive factor and detected. The univariate and multivariate regression analyses were performed to identify the prognostic factors for recurrence-free survival (RFS) and overall survival (OS) of HCC patients complicated by mPVTT. @*Results@#Our results showed that the median OS was 16 months. The 1-, 3-, and 5-year cumulative OS was 55.6%, 31.7%, and 31.7%, respectively. The multivariate regression analysis revealed that SUVmax ≥ 4.65 was the only independent risk factor for RFS and OS. @*Conclusion@#SUVmax was an independent predictor for RFS and OS of patients suffering from both HCC and mPVTT. L ow SUVmax could serve as an effective factor for selecting candidates with low recurrence risks and for helping with improving patient survival after surgical resection.
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PURPOSE: Complete removal of the caudate lobe, which is sometimes necessary, is accomplished via isolated caudate lobectomy or hepatectomy that includes the caudate lobe. It is impossible, however, to confirm the right and ventral margins of the caudate lobe by preoperative imaging. This study was undertaken to determine whether we could identify the right and ventral margins of the caudate lobe preoperatively using Synapse 3D visualization software. METHODS: Ninety-four preoperative 3-dimensional (3D) computed tomographic images (1-mm slices) of the liver from candidate donors were examined. The images of the caudate lobe were subjected to a counter-staining method according to Synapse 3D to delineate their dimensions. We first examined whether the right margin of the caudate lobe exceeded the plane formed by the root of the right hepatic vein (RHV) and the right side of the inferior vena cava (IVC). Second, we determined whether the ventral margin of the caudate lobe exceeded the plane formed by the root of the middle hepatic vein (MHV) and the root of the RHV. RESULTS: For the right margin, 17 cases (18%) exceeded the RHV-IVC plane by a mean of 10.2 mm (range, 2.4–27.2 mm). For the ventral margin, 28 cases (30%) exceeded the MHV-RHV plane by a mean of 17.4 mm (range, 1.2–49.1 mm). CONCLUSION: Evaluating the anatomy of caudate lobe using Synapse 3D preoperatively could be helpful for more precise anatomical resection of the caudate lobe.
Subject(s)
Humans , Hepatectomy , Hepatic Veins , Imaging, Three-Dimensional , Liver , Methods , Synapses , Tissue Donors , Vena Cava, InferiorABSTRACT
PURPOSE: Although many staging systems have been proposed for hepatocellular carcinoma (HCC), there is no globally accepted system due to the extreme heterogeneity of the disease. We aimed to compare the results of the 7th/8th American Joint Committee on Cancer (AJCC) and the modified Union for International Cancer Control (mUICC) staging systems in patients with HCC. MATERIALS AND METHODS: We collected data from 792 patients who underwent hepatic resection at our center. The Kaplan-Meier method was used to determine disease-free survival and overall survival. To evaluate homogeneity, ‘-2 log likelihood’ was calculated using Cox proportional hazards regression. To measure discriminatory ability, the linear trend chi method and the Cochran-Armitage test for trend were used. The ability to accurately predict survival was verified by cross-validation analysis. RESULTS: Kaplan-Meier curves for disease-free survival and overall survival showed mUICC to be superior to the 7th/8th AJCC. The homogeneity test indicated that mUICC was the best for both disease-free survival and overall survival. In the discriminatory ability test, the chi-square value of mUICC was the best for disease-free survival, while the 7th AJCC had the best value for overall survival. In the cross-validation analysis, all three staging systems had significant predictive power. CONCLUSION: mUICC seemed to be superior to the 7th/8th AJCC after analyzing the data of our surgical patients, although the geographic heterogeneity of HCC might result in differences between the staging systems. We believe that, while the three staging systems allow for the clear stratification of patients into prognostic groups, mUICC may be more appropriate in HCC.
Subject(s)
Humans , Carcinoma, Hepatocellular , Disease-Free Survival , Joints , Methods , Population Characteristics , Survival AnalysisABSTRACT
OBJECTIVE: To evaluate the molluscicidal effects of different formulations of niclosamide ethanolamine salt in marshlands. METHODS: The molluscicidal effects of spraying with 25% suspension concentrate of niclosamide ethanolamine salt (25% SCN) and 50% wettable powder formulation of niclosamide ethanolamine salt (50% WPN), and dusting with 4% niclosamide ethanolamine salt dustable powder (4% DP) for controlling Oncomelania hupensis snails were investigated and compared in the fields, and the cost-effectiveness was analyzed. RESULTS: The corrected mortalities and the reduced rates of density of snails were 54.37%, 91.70%, 92.76%, 79.50%, and 59.55%, 95.93%, 97.63%, 94.15%, respectively, on 3, 7, 15, 30 d after spaying with 25% SCN, those on 3, 7, 15, 30 d after dusting with 4% DP were 59.10%, 91.83%, 95.56%, 93.34% and 65.03%, 94.93%, 97.61%, 97.28%, respectively; and those on 3, 7, 15, 30 d after spraying with 50% WPN were 76.29%, 91.68%, 93.12%, 81.59% and 81.24%, 97.02%, 97.84%, 95.27%, respectively. The cost of spraying with 25% SCN was 0.21 Yuan/m2, that of dusting with 4% DP was 0.39 Yuan/m2, and that of spraying with 50% WPN was 0.23 Yuan/m2 for snail control in the marshland. The cost of reduced one percentage of the corrected mortalities and the density of snails in controlling snails by 25% SCN, 4% DP and 50% WPN on 15 d were 22.68, 40.63, 25.17 Yuan and 21.54, 39.78, 23.95 Yuan, respectively. CONCLUSIONS: The three different formulations of niclosamide are reliable and effective for snail control in marshlands. There are some differences among the different molluscicides in start time, pharmacodynamic characteristics, spraying methods in the field, cost of snail control, and influencing factors. Therefore, we need reasonably select the suitable molluscicides according to the environmental characteristics and working condition.
Subject(s)
Molluscacides , Niclosamide , Snails , Wetlands , Animals , Molluscacides/chemistry , Molluscacides/pharmacology , Niclosamide/chemistry , Niclosamide/pharmacology , Snails/drug effectsABSTRACT
Objective: To determine the frequency of anti-HCV antibody positivity in patients with non-liver disease complaints, to explore whether anti-HCV positive patients had been properly advised and visited hepatologists for further assessments, and to investigate their clinical characteristics as well as the HCV treatment status. Methods: A hospital based survey of non-liver disease patients with anti-HCV positive and their attending physicians was conducted to determine: 1. were the patients adequately advised of the implication of anti-HCV positive finding; 2. to what extent the patients were aware of potential chronic liver disease associated with HCV infection and whether they sought for further assessments and care of hepatologists. Results: A total of 295 294 non-liver disease patients were tested for anti-HCV antibody, and 2 778 of them were found to be positive (0.94%). However, only 45.10% (1 253/2 778) of the anti-HCV antibody (+) patients were referred to hepatologists and received HCV RNA test. In addition, 34.10% (312/915) and 1.42% (13/915) of them had already advanced to cirrhosis and hepatocellular carcinoma (HCC), respectively. Further analysis showed that the patients who declined antiviral therapy were older, with lower education and lower income, possessed poorer knowledge on the risk of chronic hepatitis C, and had more severe liver diseases. Surprisingly, 65% of the surveyed physicians did not know the genotype-guided treatment duration suggested by the guidelines. Alarmingly, 22% of the surveyed physicians did not know the standard assays for the diagnosis of HCV infection. Conclusions: Our findings highlight the challenge and hidden enormous burden of chronic HCV infection among patients with non-liver disease complaints in China.
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In order to improve the access and control of core data in medical information security,the paper builds a virtual isolation private cloud storage architecture in hospital,including virtualized reconstruction,metadata model application based on hierarchical model,access to remote clients design and application based on virtual isolation and so on,providing a reliable method for the isolation and intercommunication between the intranet and extranet.
ABSTRACT
Objective:To determine the frequency of anti-HCV antibody positivity in patients with non-liver disease complaints, to explore whether anti-HCV positive patients had been properly advised and visited hepatologists for further assessments, and to investigate their clinical characteristics as well as the HCV treatment status.Methods:A hospital based survey of non-liver disease patients with anti-HCV positive and their attending physicians was conducted to determine: 1. were the patients adequately advised of the implication of anti-HCV positive finding; 2. to what extent the patients were aware of potential chronic liver disease associated with HCV infection and whether they sought for further assessments and care of hepatologists.Results:A total of 295 294 non-liver disease patients were tested for anti-HCV antibody, and 2 778 of them were found to be positive (0.94%). However, only 45.10% (1 253/2 778) of the anti-HCV antibody (+) patients were referred to hepatologists and received HCV RNA test. In addition, 34.10% (312/915) and 1.42% (13/915) of them had already advanced to cirrhosis and hepatocellular carcinoma (HCC), respectively. Further analysis showed that the patients who declined antiviral therapy were older, with lower education and lower income, possessed poorer knowledge on the risk of chronic hepatitis C, and had more severe liver diseases. Surprisingly, 65% of the surveyed physicians did not know the genotype-guided treatment duration suggested by the guidelines. Alarmingly, 22% of the surveyed physicians did not know the standard assays for the diagnosis of HCV infection.Conclusions:Our findings highlight the challenge and hidden enormous burden of chronic HCV infection among patients with non-liver disease complaints in China.