Alveolitis, Extrinsic Allergic ; Humans ; Metallurgy ; Occupational Diseases

OBJECTIVE:To study the relation of glycyrrhizic glycoside on hepatitis B virus(HBV)replication in vitro.METHODS:2.2.15cell line was used and treated with glycyrrhizic glycoside,the contents of HBsAg and HBeAg in the su?pernatant of cell culture with different concentrations of glycyrrhizic glycoside were quantified.RESULTS:The inhibitory rates of glycyrrhizic glycoside on HBsAg were83.8%,71.0%,62.1%,52.0%and29.7%respectively at the concentrations of800,400,200,100and50?g/ml respectively.CONCLUSION:Glycyrrhizic glycoside does not promote HBV replication in vitro experiment.

Objective To compare the influence of different admission modes on quality of life of patients with chronic schizophrenia.Methods 200 patients with chronic schizophrenia were randomly assigned to discontinuous group and continuous group with 100 cases in each group. All patients were treated with atypical antipsychotic drugs. A discontinuous hospitalization combined with home treatment was given to the discontinuous group and a continuous hospitalization to the continuous group for 1 year. The Positive and Negative Syndrome Scale (PANSS) and the Schizophrenia Quality of Life Scale (SQLS) were respectively used to evaluate the patient's condition and quality of life before and after the intervention. Results The intervention methods on scores of PANSS and SQLS in both groups had a change trend with time. The scores of PANSS and SQLS were significantly lower in the end of 6 months and 1 year after intervention than before in both groups (F=2119.513, 390.981, P=0.000). There was a interaction effect between intervention method and time in both groups on the scores of PANSS and SQLS (F=17.660, 11.709, P=0.000). There was significant difference between 2 groups on the score of PANSS (F=19.673,P=0.000). The decrease range of those scores was greater in the discontinuous group than in the continuous group (P=0.000). Conclusion A discontinuous hospitalization combined with home treatment is more beneficial than a continuous hospitalization for the patients with chronic schizophrenia in controlling the syndrome and improving or keeping the quality of life.

Objective To analyze the cost-effectiveness of the rehabilitation of intermittent hospitalization combined with home treatmenton chronic schizophrenics. Methods 100 patients with chronic schizophrenia were randomly assigned to study group and controlgroup, 50 cases in each group. All patients in both groups were treated with atypical antipsychotic drugs. An intermittent hospitalization combinedwith home treatment was given to the study group and a continuous hospitalization to the control group for a year. Positive and NegativeSyndrome Scale (PANSS), Activities of Daily Living Scale (ADL) and Schizophrenia Quality of Life Scale (SQLS) were used to evaluatethe patient's condition and activity of daily living and quality of life before and after the intervention. In the meantime, a cost-effectivenessanalysis was made. Results The interventions had significant influence on the scores of PANSS, ADL and SQLS in both groups. Thescores of PANSS, ADL and SQLS were significantly lower 1 year after the intervention than before in both groups (FB= 540.577, 318.148,326.751, all P=0.000). There was a significant interaction effect between intervention method and time in both groups on the scores ofPANSS, ADL and SQLS (FAB=13.710, 10.918, 6.578, P=0.000, 0.001, 0.012). The decrease value of those scores was significantly greater inthe study group than in the control group (t=3.703, 3.304, 2.565, P=0.000, 0.001, 0.012). The ratio of cost-effectiveness was larger in thestudy group than in the control group (t=7.035, P=0.000). Conclusion Intermittent hospitalization combined with home treatment is morebeneficial for the patients with chronic schizophrenia in controlling the syndrome, keeping or improving the activity of daily living and thequality of life. Therefore its rehabilitation benefit is better than that of continuous hospitalization.

Objective To investigate whether chlorophyllin could protect human umbilical vein endothelial cell (HUVEC) against oxidative damage by inducing the expression of heme oxygenase-1 (HO-1) and to explore the underlying mechanism.Methods The cellular protection of chlorophyllin against oxidative damage was detected by cell-survival assay with flow cytometry.The level of free radicals was detected directly by electron spin resonance spectra.The induced expression of HO-1 was shown by RT-PCR,Western blot,immunofluorescence confocal laser microscopy and enzymatic activity test.Whether the activation of PI3K/Akt pathway was involved was detected by Western blot.Results Chlorophyllin could protect HUVEC against oxidative damage caused by H2O2 via scavenging the excessive free radicals.Chlorophyllin treatment could induce expression of HO-1 in a dose- and time-dependent manner.The activation of PI3K/Akt pathway was required in the induction of HO-1.LY294002,the specific inhibitor of PI3K,could suppress the activation of PI3K/Akt and the induced expression of HO-1 in a dose-dependent manner.Conclusions Chlorophyllin shows cellular protection against oxidative damage by counteracting the excessive free radicals.Up-regulation of HO-1 expression plays a pivotal role in the protection of chlorophyllin,while the activation of PI3K/Akt signaling pathway is required in the induction of HO-1.

Pancreatic cancer (PC) has the characteristics of insidious onset, rapid progression, and poor prognosis. Up to now, there are no standard clinical regimens for the treatment of PC, and the benefit rate of new targeted therapy remains at a relatively low level, which results in the high mortality rate of PC. Therefore, an understanding of the development and progression mechanisms for PC has become a difficult issue to be solved, and establishment of reliable animal models for PC is the basis for exploring the development, progression, invasion, and metastasis of PC and the optimization of effective therapeutic targets. At present, a large number of studies have established various animal models for PC, and this article compares the commonly used animal models to provide a reference for the selection of animal models in PC research.

BACKGROUND:This review explores the current research status and frontier hot spots of functional magnetic resonance imaging(fMRI)in the field of traditional Chinese medicine(TCM)for the treatment of ischemic stroke,and attempts to grasp future research trends,with a view to providing a reference for subsequent research in this field. OBJECTIVE:To visualize and analyze the hotspots and frontiers in the TCM treatment of ischemic stroke based on fMRI using CiteSpace knowledge mapping combined with binary logistic regression equations,in order to grasp the future research trends and further explore the distribution of brain regions with abnormal neural activity related to the types of post-stroke dysfunction. METHODS:CNKI,WanFang,VIP,Chinese Biomedical Literature Database and Web of Science core set database were searched.CiteSpace was used to plot keyword co-occurrence,keyword clustering timeline,burst term detection,co-cited literature mapping to analyze hotpots and frontiers in this field.Binary logistic regression analysis fitted the distribution of brain regions with abnormal neural activity associated with different dysfunction after ischemic stroke. RESULTS AND CONCLUSION:A total of 354 articles were included for CiteSpace knowledge mapping analysis.The number of annual publications showed that the research popularity has been raised from 2000 to 2022 with a good development prospect,but the core strength is mainly concentrated in China.Keywords co-occurrence and clustering time line analysis showed that aphasia,hemiplegia and cognitive impairment are the hot poststroke dysfunction types.Electroacupuncture,acupuncture and head acupuncture are hotspot intervention measures.Functional connectivity is a hotspot analysis method,and resting fMRI is a hotspot scanning technology.The time span of each research hotspot is long,indicating that it has a certain research value and the relevant research is gradually deepening,promoting the research progress in this field.However,acupuncture is the main intervention measure,and there is a lack of research on traditional Chinese medicine,Chinese patent medicine,acupuncture and medicine combination and other TCM therapy.Burst term detection results showed that functional connectivity,graph theory,degree centrality,default mode network,randomized controlled trials have great influence and strong explosive power.They are the current and future frontier hot spots in this field,suggesting that future research should focus on the brain network information integration and strengthen the scientific and rigorous clinical trial design.The results of co-cited literature analysis showed that the epidemiological investigation of ischemic stroke,the safety and effectiveness of acupuncture in the treatment of stroke,the brain activation patterns under different tasks,and the neuropathological mechanism of brain network dysfunction after stroke are the theoretical basis of this field.Future research direction in this field is to explore TCM-targeted brain regions and neural networks to reveal the brain effect mechanism of TCM promoting neural remodeling after stroke.A total of 255 articles were included for binary Logistic regression analysis.The results showed that sensorimotor cortex and premotor area dysfunction are positively correlated with the incidence of motor dysfunction after stroke;hippocampus,cerebellum posterior lobe,precuneus,inferior temporal gyrus and anterior cingulate nerve dysfunction are positively correlated with the incidence of cognitive impairment after stroke;cuneus,angular gyrus and prefrontal lobe neural dysfunction were positively correlated with the incidence of affective disorder after stroke;anterior cingulate,cerebellum posterior lobe neural dysfunction are positively correlated with the incidence of swallowing disorder after stroke.The above brain regions are the core brain regions of the sensorimotor network,default mode network and reward loop,suggesting that functional abnormalities within or between brain networks related to dysfunction may be potential target areas for TCM intervention,but the specific changes in neural activity activation or inhibition still need to be refined.

ObjectiveTo evaluate the clinical efficacy and safety of Notoginseng Radix et Rhizoma powder in treating dyslipidemia by regulating the phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt） signaling pathway. MethodSixty patients with dyslipidemia （syndrome of combined phlegm and stasis） treated in the Third Affiliated Hospital of Henan University of Chinese Medicine from May 2021 to June 2022 were selected in this study and randomized into two groups according to the randomized， double-blind control principle. The control group was treated with Xuezhikang capsules + Notoginseng Radix et Rhizoma powder placebo and the observation group with Notoginseng Radix et Rhizoma powder + Xuezhikang capsules placebo for 6 weeks. The clinical efficacy， traditional Chinese Medicine （TCM） syndrome scores， and liver and kidney function indicators were evaluated at weeks 0， 3， and 6. Enzyme-linked immunosorbent assay （ELISA） was employed to determine the expression of vascular endothelial growth factor （VEGF）， kinase insert domain receptor （KDR）， epidermal growth factor （EGF）， and epidermal growth factor receptor （EGFR） in the peripheral serum. Quantitative Real-time PCR was employed to measure the mRNA levels of KDR， EGFR， PI3K， and Akt in the mononuclear cells of the peripheral blood. ResultThe observation group （83.33%） showed the total effective rate comparable to that of the control group （89.66%） and no adverse reactions. Compared with before treatment， the patients in the observation group showed decreased TCM syndrome score and serum levels total cholesterol （TC）， triglyceride （TG）， and low-density lipoprotein cholesterol （LDL-C） and after being treated for 3 and 6 weeks （P<0.05）， the level of high-density lipoprotein cholesterol （HDL-C） showed an upward trend, but the difference was not statistically significant. After treatment， the two groups showed no significant differences. Compared with that before treatment, the mRNA expression of PI3K, Akt and EGFR in peripheral blood mononuclear cell and the expression of EGF, VEGF and KDR in serum of the observation group showed a downward trend with time, in which the mRNA expression of PI3K, Akt, VEGF and KDR decreased more significantly (P<0.05)，The expression levels of KDR mRNA and serum EGFR show a trend of first increasing and then decreasing.Compared with the control group after treatment, there was no statistically significant difference in mRNA expression of PI3K, Akt, EGFR, and KDR, as well as serum levels of EGF, EGFR, VEGF, and KDR between the two groups of patients at the same time point. ConclusionNotoginseng Radix et Rhizoma powder is safe and effective in correcting dyslipidemia. It may inhibit the PI3K/Akt signaling pathway by down-regulating the expression of VEGF/KDR to lower the blood lipid level.