摘要
ObjectiveThis study aims to investigate the mechanism in which Celastrus orbiculatus extract （COE） affects the proliferation and differentiation of gastric organoids and the expression of Lgr5 and thus reverses the precancerous lesions of gastric cancer （PLGC） by regulating the leucine-rich repeat containing G protein-coupled receptor 5 （Lgr5）/Wingless （Wnt）/β-catenin signaling pathway based on a gastric organoid injury model. MethodGastric organoids were established based on stem cells of the mouse gastric gland. Gastric organoid injury models were constructed by treating gastric organoids with N-methyl-N'-nitro-N-nitrosoguanidine （MNNG， 0.02 mg·L-1）. Gastric organoid injury models were randomly divided into normal group， model group （0.02 mg·L-1 MNNG）， low， medium， and high dose （5， 10， 20 mg·L-1） groups of COE， and Wnt inhibitor Dickkopf-related protein 1 （DKK1） （0.5 mg·L-1） group， and they were treated with respective agents for 24 h. The number and volume of gastric organoids under different drug concentrations were observed under a microscope. The viability of the gastric organoid injury models was detected by Methyl thiazolyl tetrazolium （MTT） assay. The morphology and pathology of gastric organoids were observed using Hematoxylin and Eosin （HE） staining. The expression levels of Lgr5， Mucin2 （MUC2）， Mucin5AC （MUC5AC）， Mucin6 （MUC6）， Wnt， and β-catenin in gastric organoids under different drug concentrations were detected by Western blot （WB）. ResultCompared with the normal group， the number， volume， and activity of gastric organoids in the model group were decreased （P<0.01）， while the expressions of Lgr5， MUC2， Wnt， and β-catenin were significantly increased （P<0.01）. The expressions of MUC5AC and MUC6 were significantly decreased （P<0.01）. Compared with the model group， the number and volume of gastric organoids in the low， medium， and high dose groups of COE were all improved （P<0.01）， and the vitality of gastric organoids was significantly enhanced （P<0.01）. The effect was the most significant at a COE concentration of 20 mg·L-1 （P<0.01）. The expressions of Lgr5 and MUC2 in the medium and high dose groups of COE were significantly reduced （P<0.01）， while the expression of MUC5AC and MUC6 were significantly increased in the low， medium， and high dose groups of COE （P<0.05， P<0.01）. Compared with the model group， Wnt inhibitors could promote the expression of MUC5AC and MUC6 in gastric organoids （P<0.05， P<0.01） and reduce the expression of MUC2， Wnt， and β-catenin. In addition， the combined use of COE at high concentrations and Wnt inhibitors could further promote this trend （P<0.01）. ConclusionCOE inhibits the Wnt/β-catenin pathway by inhibiting the expression of Lgr5， MUC2， Wnt， and β-catenin and promoting the expression of MUC5AC and MUC6， thus promoting the proliferation and differentiation of gastric organoids and reversing the PLGC process.
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Inflammation underlies a wide variety of physiological and pathological processes, and plays a pivotal role in controlling pathogen infection. C1q/tumor necrosis factor (TNF) related proteins (CTRPs), a newly discovered adipokine family with conservative structure and wide distribution, has attracted increasing attention. The CTRP family consists of more than 15 members which fall into the characteristic C1q domain. Increasing studies have demonstrated that CTRPs are involved in the onset and development of inflammation and metabolism as well as related diseases, including myocardial infarction, sepsis and tumors. Here, we first clarified the characteristic domains of CTRPs, and then elucidated their roles in inflammatory-related diseases. Taken together, the information presented here provides new perspectives for therapeutic strategies to improve inflammatory and metabolic abnormalities.
Subject(s)
Humans , Complement C1q/metabolism , Tumor Necrosis Factor-alpha/metabolism , Inflammation/metabolism , Myocardial Infarction摘要
Objective@#To investigate the effect of Celastrus orbiculatus extract ( COE) on the growth of gastric organoids and the expression of E-cadherin in gastric epithelial cells of mice．@*Methods@#The gastric pylorus of 8-week-old C57 mice was isolated and cultured into gastric organoids．The dynamic changes of gastric organoid formation were observed under light microscope ; the intercellular structure of gastric epithelium was observed by HE staining ; the expression of epithelial-cadherin E-cadherin in gastric epithelial cells was observed by immunofluorescence staining．After passage to the third-generation ，the organoids were treated with different concentrations of COE (0，5 ，10，20 μg/ ml) ，the organoids were collected ，their numbers were counted ，their diameters were measured，their cellular activities were measured by methyl thiazolyl tetrazolium( MTT) colorimetry，and Western blot was used to detect the expression of E-cadherin in organoids after COE treatment. @*Results @#At 24 to 48 h， cystlike structures were formed and three-dimensional cell clusters with cystic gland-like central structure appeared， and gradually budding and forming gastric organoids after 72 h，suggesting that the organoids were successfully constructed．The epithelial cell marker E-cadherin was expressed in the organoid，which further confirmed the formation of organoid．Compared with the control group，the number and diameter of gastric organoids in the COE group significantly increased，cell activity was significantly enhanced (P＜0. 05) ，and the expression of E-cadherin increased with the increase of COE dose (P＜0. 01) ．@*Conclution @#Low dose COE can promote the expression of E-cadherin and the growth and formation of organoids，which may affect the repair of gastric mucosa injury.
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Objective@#To investigate the epidemiological characteristics of human brucellosis in Jiaxing City from 2010 to 2021, so as to provide insights into the development of the brucellosis control strategy.@*Methods@#The epidemiological and clinical data of brucellosis patients and epidemiological data of brucellosis outbreaks in Jiaxing City from 2010 to 2021 were collected from Chinese Disease Control and Prevention Information System, and the epidemiological features and outbreaks of brucellosis were analyzed descriptively.@*Results@#Totally 160 brucellosis patients were reported in Jiaxing City from 2010 to 2021, and the incidence of brucellosis appeared a tendency towards a rise (χ2trend=28.564, P=0.002), with annual mean incidence of 0.29/105. No deaths due to brucellosis occurred in Jiaxing City from 2010 to 2021. Brucellosis cases were reported each month, which were concentrated in the first and second quarters, and the greatest number was seen in May (27 cases, 16.88%). The brucellosis cases were predominantly reported in Tongxiang City (114 cases, 71.25%), and 75.00% were male (120 cases) and 70.63% were occupational populations (113 cases). The patients had a median (interquartile range) age of 57 (12) years at onset, and the median duration (interquartile range) from onset to definitive diagnosis was 18 (28) days. The clinical manifestations mainly included fever and weakness, and a total of 18 Brucella melitensis isolates and one B. bovis isolate were cultured.@*Conclusions@#The incidence of brucellosis was rising in Jiaxing City from 2010 to 2021. The brucellosis patients were predominantly reported in Tongxiang City in the first and second quarters, and young, middle-aged men and occupational populations were at a high risk of brucellosis.
摘要
Abstract@#On March 12, 2022, a case with Plasmodium vivax malaria was reported in the First Hospital of Jiaxing City. The case sought healthcare services due to persist, sharp distending pain of the brain and fever on February 25, 2022, and the symptoms showed no improvements following symptomatic treatment. Microscopy identified malaria parasites on March 12, and the case was definitively diagnosed as P. vivax malaria on March 13. The case was discharged from hospital on March 16 and relapsed on June 15. The case was a veteran from the China-Myanmar border, where malaria is highly prevalent, and had no history of travel after returning to Jiaxing City on October 2021. Based on epidemiological history and laboratory tests, the case was diagnosed as a cross-border mosquito-borne imported case of P. vivax malaria. The case was given treatment with mosquito vector isolation, and the case's family members, neighbors and colleagues were all tested negative for malaria parasites. There was no Anopheles sinensis detected in the case' residence; however, Anopheles was detected in the neighboring areas, indicating a risk of re-establishment. Returners from high-risk regions including borders and labor exporters are recommended to be included in malaria surveillance, and the sensitivity of malaria surveillance requires to be maintained and the diagnostic and treatment capability of malaria requires to be improved in medical institutions.
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ObjectiveTo investigate the effect and mechanism of pachymic acid （PA） in Poria on the invasion and metastasis of renal carcinoma cells. MethodThe effect of PA （0， 20， 40， 80， 160 μmol·L-1） on cell viability was detected by cell counting kit-8（CCK-8）， and the dose of PA was selected for subsequent experiments. The effect of PA （0， 20， 40， 80 μmol·L-1） on cell proliferation was evaluated by colony formation assay. The effect of PA （0， 20， 40， 80 μmol·L-1） on cell adhesion ability was observed by cell adhesion assay. The effect of PA （0， 20， 40， and 80 μmol·L-1） on cell invasion and metastasis was investigated by Wound healing assay and Transwell invasion assay. The inhibitory effect of PA （0， 20， 40， 80 μmol·L-1） on cell motility was further observed and verified by high-content imaging technology. The effects of PA （0， 20， 40， 80 μmol·L-1） on the expression of matrix metalloproteinase （MMP）/tissue inhibitor of metalloproteinasas （TIMP） related to invasion and metastasis and Smads were detected by Western blot. ResultCCK-8 results showed that compared with the blank group， the PA groups showed decreased cell viability（P<0.01）， with the half-maximal inhibitory concentration （IC50） of ACHN cells of 70.42 μmol·L-1 at 24 h. Colony formation assay showed that the number of cell clonal groups in the PA groups was reduced compared with that in the blank group（P<0.01）. Cell adhesion assay showed that compared with the blank group， the PA groups displayed reduced cell adhesion（P<0.01）. Wound healing assay showed that the wound healing rate of cells in the PA groups was lower than that in the blank group （P<0.05，P<0.01）. Transwell invasion assay showed that compared with the blank group， the number of transmembrane cells in PA groups was reduced（P<0.01）. High-content imaging showed that the cumulative migration distance of cells in the PA groups was shorter than that in the blank group（P<0.01）. The results of Western blot showed that the protein expression of MMP-2 and MMP-9 in the PA groups decreased （P<0.01）， and TIMP-1 protein expression increased （P<0.01） compared with those in the blank group. In addition， compared with the blank group， the PA groups showed decreased protein expression of Smad2 and Smad3 （P<0.01）. ConclusionPA can inhibit the invasion and metastasis of renal carcinoma cells presumably through regulating the homeostasis of MMP/TIMP by Smad2/3.
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ObjectiveTo study the inhibitory effect of Celastrus orbiculatus extract （COE） on gastric cancer cells， to clarify the specific mechanism of COE promoting the apoptosis of gastric cancer cells by affecting the mitochondrial structure and function， and to provide an experimental basis for the further development and clinical application of C. orbiculatus. MethodBrdu staining combined with flow cytometry and Annexin V-fluorescein isothiocyanate （AnnexinV-FITC） staining combined with flow cytometry were employed to detect the effects of COE （20， 40， 80 mg·L-1） on the proliferation and apoptosis of gastric cancer cells， respectively. The changes in mitochondrial membrane potential were detected with JC-1 mitochondrial membrane potential assay kit. The expression of apoptosis-associated proteins including B-cell lymphoma-2 （Bcl-2）， B-cell lymphoma-xL （Bcl-xL）， Bcl-2-associated X （Bax）， and cysteine aspartutespecific protease-3 （Caspase-3） in gastric cancer cells was determined by Western blot. Transmission electron microscopy was employed to detect changes in the mitochondrial microstructure of gastric cancer cells exposed to COE. Western blot was employed to measure the expression of mitochondrial marker proteins ［superoxide dismutase 1 （SOD1）， voltage-dependent anion channel （VDAC）， prohibitin 1 （PHB1）， and heat shock protein 60 （HSP60）］ in gastric cancer cells. ResultCompared with the control group， COE （40， 80 mg·L-1） inhibited the proliferation and promoted the apoptosis of gastric cancer cells （P<0.05）. Furthermore， COE reduced the mitochondrial membrane potential of gastric cancer cells. Compared with the control group， COE （20， 40， 80 mg·L-1） up-regulated the expression of Bax and Caspase-3 which promoted apoptosis of gastric cells （P<0.05， P<0.01）， and COE at 40 and 80 mg·L-1 down-regulated the expression of Bcl-2 and Bcl-xL which inhibited the apoptosis of gastric cancer cells （P<0.01）. The results of transmission electron microscopy showed that COE changed the microstructure of gastric cancer cells， which led to the appearance of vacuoles in the cell membrane and mitochondria and damaged the mitochondrial structure. Compared with the control group， COE （20， 40， 80 mg·L-1） changed the expression of mitochondrial marker proteins. Specifically， it up-regulated the expression of SOD1 involved in stress response （P<0.05， P<0.01） and down-regulated that of VDAC， PHB1， and HSP60 associated with mitochondrial stability and permeability （P<0.01）. ConclusionCOE can significantly inhibit the proliferation and promote the apoptosis of gastric cancer cells. It may activate the mitochondrial apoptosis pathway by destroying the mitochondrial structure and function of gastric cancer cells.
摘要
ObjectiveTo study the inhibitory effect of Celastrus orbiculatus extract （COE） on gastric cancer cells， to clarify the specific mechanism of COE promoting the apoptosis of gastric cancer cells by affecting the mitochondrial structure and function， and to provide an experimental basis for the further development and clinical application of C. orbiculatus. MethodBrdu staining combined with flow cytometry and Annexin V-fluorescein isothiocyanate （AnnexinV-FITC） staining combined with flow cytometry were employed to detect the effects of COE （20， 40， 80 mg·L-1） on the proliferation and apoptosis of gastric cancer cells， respectively. The changes in mitochondrial membrane potential were detected with JC-1 mitochondrial membrane potential assay kit. The expression of apoptosis-associated proteins including B-cell lymphoma-2 （Bcl-2）， B-cell lymphoma-xL （Bcl-xL）， Bcl-2-associated X （Bax）， and cysteine aspartutespecific protease-3 （Caspase-3） in gastric cancer cells was determined by Western blot. Transmission electron microscopy was employed to detect changes in the mitochondrial microstructure of gastric cancer cells exposed to COE. Western blot was employed to measure the expression of mitochondrial marker proteins ［superoxide dismutase 1 （SOD1）， voltage-dependent anion channel （VDAC）， prohibitin 1 （PHB1）， and heat shock protein 60 （HSP60）］ in gastric cancer cells. ResultCompared with the control group， COE （40， 80 mg·L-1） inhibited the proliferation and promoted the apoptosis of gastric cancer cells （P<0.05）. Furthermore， COE reduced the mitochondrial membrane potential of gastric cancer cells. Compared with the control group， COE （20， 40， 80 mg·L-1） up-regulated the expression of Bax and Caspase-3 which promoted apoptosis of gastric cells （P<0.05， P<0.01）， and COE at 40 and 80 mg·L-1 down-regulated the expression of Bcl-2 and Bcl-xL which inhibited the apoptosis of gastric cancer cells （P<0.01）. The results of transmission electron microscopy showed that COE changed the microstructure of gastric cancer cells， which led to the appearance of vacuoles in the cell membrane and mitochondria and damaged the mitochondrial structure. Compared with the control group， COE （20， 40， 80 mg·L-1） changed the expression of mitochondrial marker proteins. Specifically， it up-regulated the expression of SOD1 involved in stress response （P<0.05， P<0.01） and down-regulated that of VDAC， PHB1， and HSP60 associated with mitochondrial stability and permeability （P<0.01）. ConclusionCOE can significantly inhibit the proliferation and promote the apoptosis of gastric cancer cells. It may activate the mitochondrial apoptosis pathway by destroying the mitochondrial structure and function of gastric cancer cells.
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Long non-coding RNA (lncRNA) contains rich information and functions. The research on Traditional Chinese Medicine (TCM) targeting lncRNA mainly involves tumors, cardiovascular diseases, endocrine and metabolic related diseases, osteoporosis and other diseases, which are used to explore the mechanism of TCM and the differetiation of TCM syndromes or constitution, etc. LncRNA has important application prospects in the field of TCM. The study of lncRNA may provide new ways and technical methods for the research of modern TCM.
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The composition of serum is extremely complex,which complicates the discovery of new pharmaco-dynamic biomarkers via serum proteome for disease prediction and diagnosis.Recently,nanoparticles have been reported to efficiently reduce the proportion of high-abundance proteins and enrich low-abundance proteins in serum.Here,we synthesized a silica-coated iron oxide nanoparticle and devel-oped a highly efficient and reproducible protein corona(PC)-based proteomic analysis strategy to improve the range of serum proteomic analysis.We identified 1,070 proteins with a median coefficient of variation of 12.56％using PC-based proteomic analysis,which was twice the number of proteins iden-tified by direct digestion.There were also more biological processes enriched with these proteins.We applied this strategy to identify more pharmacodynamic biomarkers on collagen-induced arthritis(CIA)rat model treated with methotrexate(MTX).The bioinformatic results indicated that 485 differentially expressed proteins(DEPs)were found in CIA rats,of which 323 DEPs recovered to near normal levels after treatment with MTX.This strategy can not only help enhance our understanding of the mechanisms of disease and drug action through serum proteomics studies,but also provide more pharmacodynamic biomarkers for disease prediction,diagnosis,and treatment.
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Porphyromonas gingivalis (P. gingivalis), a key pathogen in periodontitis, has been shown to accelerate the progression of atherosclerosis (AS). However, the definite mechanisms remain elusive. Emerging evidence supports an association between mitochondrial dysfunction and AS. In our study, the impact of P. gingivalis on mitochondrial dysfunction and the potential mechanism were investigated. The mitochondrial morphology of EA.hy926 cells infected with P. gingivalis was assessed by transmission electron microscopy, mitochondrial staining, and quantitative analysis of the mitochondrial network. Fluorescence staining and flow cytometry analysis were performed to determine mitochondrial reactive oxygen species (mtROS) and mitochondrial membrane potential (MMP) levels. Cellular ATP production was examined by a luminescence assay kit. The expression of key fusion and fission proteins was evaluated by western blot and immunofluorescence. Mdivi-1, a specific Drp1 inhibitor, was used to elucidate the role of Drp1 in mitochondrial dysfunction. Our findings showed that P. gingivalis infection induced mitochondrial fragmentation, increased the mtROS levels, and decreased the MMP and ATP concentration in vascular endothelial cells. We observed upregulation of Drp1 (Ser616) phosphorylation and translocation of Drp1 to mitochondria. Mdivi-1 blocked the mitochondrial fragmentation and dysfunction induced by P. gingivalis. Collectively, these results revealed that P. gingivalis infection promoted mitochondrial fragmentation and dysfunction, which was dependent on Drp1. Mitochondrial dysfunction may represent the mechanism by which P. gingivalis exacerbates atherosclerotic lesions.
Subject(s)
Endothelial Cells , Mitochondria , Mitochondrial Dynamics , Porphyromonas gingivalis摘要
Objective@#To discuss the effect of self-efficacy on patients with coronary heart disease cured in general practice department based on Hospital-Community-Patient Integrated Nursing Mode.@*Methods@#From January to April in 2018, 106 patients (51 males and 55 females) with coronary heart disease hospitalized in general practice of hospital were selected as subjects of study. Random number table method was used to divide the patients into control group and intervention group, 53 cases in each group. The intervention group adopted the hospital-community-patient integrated nursing model, while the control group adopted the traditional health education mode after discharge. Self-efficacy evaluation was conducted before intervention, 3 months after intervention and 6 months after intervention.@*Results@#The total score of self-efficacy in the two groups was higher than that before intervention, but the increase in the intervention group was significantly better than that in the control group, the difference was statistically significant (F=34.681, P < 0.01). The total scores of self-efficacy in intervention group were(30.35±2.58), (33.59±2.68) points respectively 3 months and 6 months after intervention, which were higher than (28.95±2.42), (29.10±2.12) points in control group. The difference was significant (t = 3.702, 13.494, P < 0.01).@*Conclusion@#Hospital-community-patient integrated nursing model is superior to traditional health education model after discharge, which can significantly improve the self-efficacy of patients with coronary heart disease discharged from general practice department.
摘要
Objective To discuss the effect of self-efficacy on patients with coronary heart disease cured in general practice department based on Hospital-Community-Patient Integrated Nursing Mode. Methods From January to April in 2018, 106 patients (51 males and 55 females) with coronary heart disease hospitalized in general practice of hospital were selected as subjects of study. Random number table method was used to divide the patients into control group and intervention group, 53 cases in each group. The intervention group adopted the hospital-community-patient integrated nursing model, while the control group adopted the traditional health education mode after discharge. Self-efficacy evaluation was conducted before intervention, 3 months after intervention and 6 months after intervention. Results The total score of self-efficacy in the two groups was higher than that before intervention, but the increase in the intervention group was significantly better than that in the control group, the difference was statistically significant (F=34.681, P < 0.01). The total scores of self-efficacy in intervention group were (30.35 ± 2.58), (33.59 ± 2.68) points respectively 3 months and 6 months after intervention, which were higher than (28.95 ± 2.42), (29.10 ± 2.12) points in control group. The difference was significant (t =3.702, 13.494, P<0.01). Conclusion Hospital-community-patient integrated nursing model is superior to traditional health education model after discharge, which can significantly improve the self-efficacy of patients with coronary heart disease discharged from general practice department.
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Objective To study the effect of N-Methyl-D-asparticacid ( NMDA ) on the intracellular free calcium concentration ( [ Ca2+] i ) in primary cultured rat calvaria osteoblasts. Methods A calcium imaging technique was applied to observe [ Ca2+] i changes in primary cultured rat calvaria osteoblasts after stimulating by NMDA with various concentrations or pretreated with NMDA receptor noncompetitive antagonism MK801 ( Dizocilpin) . Results Different concentrations of NMDA caused [ Ca2+] i increases in varying degrees and by different ways. NMDA could evoke transient increase and secondary change in [ Ca2+] i including calcium oscillation or steady increase. MK801 inhibited NMDA-induced [ Ca2+] i increase in varying degrees. Conclusion These results indicated that there are abundant functional NMDA receptors expressed in primary cultured rat calvaria osteoblasts, showing different forms and varying degrees of [ Ca2+] i increases in response to different concentrations of NMDA. The characters of the blocking effect of MK801 to NMDA-induced [ Ca2+] i increasing, indicated that the NMDA receptors expressed in primary cultured rat calvaria osteoblasts differ in channel properties from those in central nervous system.
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The retained functionality of the sodium iodide symporter (NIS) expressed in differentiated thyroid cancer (DTC) cells allows the further utilization of post-surgical radioactive iodine (RAI) therapy, which is an effective treatment for reducing the risk of recurrence, and even the mortality, of DTC. Whereas, the dedifferentiation of DTC could influence the expression of functional NIS, thereby reducing the efficacy of RAI therapy in advanced DTC. Genetic alternations (such as BRAF and the rearranged during transfection [RET]/papillary thyroid cancer [PTC] rearrangement) have been widely reported to be prominently responsible for the onset, progression, and dedifferentiation of PTC, mainly through activating the mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K) signaling cascades. These genetic alternations have been suggested to associate with the reduced expression of iodide-handling genes in thyroid cancer, especially the NIS gene, disabling iodine uptake and causing resistance to RAI therapy. Recently, novel and promising approaches aiming at various targets have been attempted to restore the expression of these iodine-metabolizing genes and enhance iodine uptake through in vitro studies and studies of RAI-refractory (RAIR)-DTC patients. In this review, we discuss the regulation of NIS, known mechanisms of dedifferentiation including the MAPK and PI3K pathways, and the current status of redifferentiation therapy for RAIR-DTC patients.
Subject(s)
Humans , In Vitro Techniques , Iodine , Ion Transport , Isotopes , Mortality , Protein Kinases , Recurrence , Sodium Iodide , Thyroid Gland , Thyroid Neoplasms , Transfection摘要
OBJECTIVE@#To investigate the efficacy of prussian blue (PB) or its combination with hemoperfusion (HP) in the treatment of acute thallium poisoning.@*METHODS@#Forty-seven patients with acute thallium poisoning with complete data hospitalized in the 307th Hospital of PLA from September 2002 to December 2017 were enrolled, and they were divided into mild poisoning group (blood thallium < 150 μg/L, urinary thallium < 1 000 μg/L) and moderate-severe poisoning group (blood thallium ≥ 150 μg/L, urinary thallium ≥ 1 000 μg/L) according to the toxic degrees. All patients were given symptomatic supportive treatments such as potassium supplementation, catharsis, vital organ protections, neurotrophic drugs, and circulation support. The mild poisoning patients were given PB with an oral dose of 250 mg×kg-1×d-1, while moderate-severe poisoning patients were given PB combined HP continued 2-4 hours each time. The PB dose or frequency of HP application was adjusted according to the monitoring results of blood and urine thallium. Data of gender, age, pain grading (numeric rating scale NRS), clinical manifestations, blood and urine thallium before and after treatment, length of hospitalization and prognosis were collected.@*RESULTS@#Of the 47 patients, patients with incomplete blood and urine test results, and used non-single HP treatment such as plasmapheresis and hemodialysis for treatment were excluded, and a total of 29 patients were enrolled in the analysis. (1) Among 29 patients, there were 20 males and 9 females, median age of 40.0 (34.0, 49.0) years old; the main clinical manifestations were nervous system and alopecia, some patients had digestive system symptoms. There were 13 patients (44.8%) in the mild poisoning group with painless (grade 0) or mild pain (grade 1-3) with mild clinical symptoms, the length of hospitalization was 17.0 (14.2, 21.5) days. There were 16 patients (55.2%) in the moderate-severe poisoning group with moderate pain (grade 4-6) or severe pain (grade 7-10) with severe clinical symptoms, the length of hospitalization was 24.0 (18.0, 29.0) days. (2) After treatment, the thallium concentrations in blood and urine in the mild poisoning group were significantly lower than those before treatment [μg/L: blood thallium was 0.80 (0, 8.83) vs. 60.00 (40.00, 120.00), urine thallium was 11.30 (0, 70.10) vs. 370.00 (168.30, 610.00), both P < 0.01], the thallium concentrations in blood and urine in the moderate-severe poisoning group were also significantly lower than those before treatment [μg/L: blood thallium was 6.95 (0, 50.50) vs. 614.50 (245.00, 922.00), urinary thallium was 20.70 (1.95, 283.00) vs. 5 434.00 (4 077.20, 10 273.00), both P < 0.01]. None of the 29 patients died, and their clinical symptoms were improved significantly. All the 27 patients had good prognosis without sequela in half a year follow-up, and 2 patients with severe acute thallium poisoning suffered from nervous system injury.@*CONCLUSIONS@#In the acute thallium poisoning patients, on the basis of general treatment, additional PB in mild poisoning group and PB combined with HP in moderate-severe poisoning group can obtain satisfactory curative effects.
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Ferrocyanides , Heavy Metal Poisoning , Hemoperfusion , Thallium/poisoning摘要
Objective To explore the value of MR elastography (MRE) and dynamic contrast-enhanced imaging (DCE-MRI) in diagnosis of gastroesophageal varices (GEV) in patients with liver cirrhosis.Methods Totally 59 patients with liver cirrhosis underwent MRE and DCE-MRI.Taking endoscopic examination as the standard,platelet (PLT) count,hepatic stiffness (HS),spleen stiffness (SS) and MR visual score (MR VS) were measured.Values of related parameters in diagnosis of liver cirrhosis GEV were compared with area under the curve (AUC).Results PLT,HS,SS and MR VS were significantly correlated with the grades of GEV with liver cirrhosis (rs =-0.317,0.436,0.682,0.703,all P＜0.05).In the diagnosis of with or without GEV,AUC of SS was higher than that of MR VS,HS,and PLT (AUC=0.880,0.795,0.744,0.635,respectively),and the AUC of SS and PLT had statistically difference (P=0.002).In diagnois of moderate or severe GEV,the AUC of MR VS was higher than that of SS,HS and PLT (AUC=0.893,0.816,0.713,0.665,respectively),and statistical differences of AUC were found between MR VS and HS,as well as between MR VS and PLT (P=0.018,0.002).Sensitivities of MR VS combined with SS in differential diagnosis of liver cirrhosis with or without GEV,liver cirrhosis with moderate or severe GEV were 94.16 ％ and 96.83 ％,respectively.Conclusion MRE is effective in the prediction of GEV with severity and diagnostic value equivalent to DCE-MR.
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Objective To explore the value of 3.0T MR elastography (MRE) in diagnosis of obstructive chronic pancreatitis.Methods Totally 32 patients (lesion group) with suspected obstructive chronic pancreatitis who underwent pancreaticoduodenectomy and 32 volunteers (normal control group) were enrolled.MRE was performed,and pancreatic stiffness value was measured.The consistency between two observers and the repeatability of the same observer were evaluated.The difference of pancreatic stiffness value was compared between the two groups.The efficacy of pancreatic stiffness value in diagnosis of obstructive chronic pancreatitis was analyzed with ROC curve.Results The consistency between two observers and the repeatability of the same observer were excellent (all ICC＞0.9).The pancreatic stiffness value of normal control group and lesion group was (1.21±0.11)kPa and (1.51±0.24)kPa,respectively (t=-6.077,P ＜0.001).The area under ROC curve of pancreatic stiffness value in diagnosis of chronic pancreatitis,mild and moderate to severe,mild to moderate and severe was 0.900,0.941 and 0.960,respectively (all P＜0.001).Conclusion MRE can objectively measure pancreatic stiffness and noninvasively assess the severity of chronic pancreatitis.
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Objective To explore the diagnostic values of procalcitonin(PCT),C-reactive protein (CRP),white blood cell(WBC),and neutrophil(N%)in bacterial infectious diseases. Methods Selected 272 patients with bacterial infectious diseases as the research object,all the patients were in accordance with diagnostic criteria of infection,and confirmed by laboratory examination and microbial cultures. Results The total sensitivity of bacterial infection was PCT > CRP > N% > WBC,and the specificity was PCT > CRP > WBC > N%. After different bacterial infection,klebsiella pneumonia was larger in view of PCT sensitivity than escherichia coli, followed by staphylococcus aureus,streptococcus pneumonia,and bauman acinetobacter in ranking. In view of CRP sensitivity,streptococcus pneumonia was larger than klebsiella pneumonia,followed by escherichia coli, staphylococcus aureus,and bauman acinetobacter in ranking. In respect of WBC sensitiveness,bauman acineto-bacter was larger than escherichia coli,followed by staphylococcus aureus,streptococcus pneumonia and klebsiella pneumoniae.In respect of N% sensitivity,streptococcus pneumonia was larger than klebsiella pneumonia,followed by bowman acinetobacter,escherichia coli,and staphylococcus aureus in ranking.After bacterial infection,PCT, CRP,WBC and N% were significantly higher than normal control group,and significantly higher than normal refer-ence value. After different bacterial infections,in view of the PCT level,klebsiella pneumonia was higher than streptococcus pneumonia,followed byescherichia coli,staphylococcus aureus,and bauman acinetobacter in rank-ing.In view of CRP level,klebsiella pneumonia was higher than streptococcus pneumonia,followed by escherichia coli,staphylococcal aureus and bowman acinetobacter. In view of WBC level,staphylococcus aureus was higher than bowman acinetobacter,followed by escherichia coli,klebsiella pneumonia and streptococcus pneumoniae. In view of N% level,klebsiella pneumonia was higher than streptococcus pneumonia,followed by bowman acineto-bacter,staphylococcus aureus and escherichia coli. Conclusion In terms of the sensitivity of PCT,CRP,WBC and NEC% to bacterial infection,the sequence is PCT>CRP>N%>WBC.