Objective:To explore important signaling pathways and effects on neurovascular unit of Buyang-Huanwu Decoction in the treatment of ischemic stroke. Methods:Used TCMSP database, Chinese Medicine and Chemical Composition Database of Shanghai institute of Organic Chemistry and searched related literature to obtain and screen the active compounds and their targets of Buyang-Huanwu Decoction. DrugBank database, OMIM database, TTD database and GeneCards database were used to obtain targets of ischemic stroke. Metascape database was used to carry out KEGG pathway enrichment analysis on therapeutic targets. AlzData database was used to analyze the gene expression of therapeutic targets in different cells. Results:Through network analysis, the key targets of Buyang-Huanwu Decoction in the treatment of ischemic stroke were obtained, including PTGS2, PTGS1, CHRM1, ADRB2, CHRM2, F10, F7, HIF1A, PDE3A, ADRA1B and CHRM3, etc. Through enrichment analysis, multiple key signaling pathways of Buyang-Huanwu Decoction in the treatment of ischemic stroke were obtained, including PI3K-Akt signaling pathway, calcium signaling pathway, IL-17 signaling pathway, platelet activation, Apelin signaling pathway, NF-κB signaling pathway, AMPK signaling pathway and arachidonic acid metabolism, etc. Through gene expression analysis, the effect of Buyang-Huanwu Decoction on different cells was analyzed, and it was found that the targets regulate a variety of biological processes, cellular components and molecular functions in endothelial, astrocytes, microglia, oligodendrocytes, oligodendrocyte precursor cells (OPCs) and neurons. Conclusion:Buyang-Huanwu Decoction is characterized by multiple components, multiple targets, multiple pathways and complex connections in the treatment of ischemic stroke, and its effect is closely related to neurovascular units (NVU) at the cellular expression level of genes, and the mechanism of therapeutic effect included neuroprotection, neurogenesis, antithrombotic, vascular regeneration, glial cell regulation, etc.

Objective:To investigate the inhibiting and apoptosis-effects inducing of the recombinant Ganoderma Lucidum immunoregulatory protein(rLZ-8) on HL60 cells.Methods:HL60 cells were cultured and the inhibited rate of HL60 cells was measured by means of MTT assay.Apoptosis rate was detected with annexinV/PI.The Calcium ion level was analyzed by Fluo-3/AM stain.Caspase-3 activity was assessed by caspase-3 colorimetric assay.Results:The experiments indicated that rLZ-8 could induce the HL60 cells apoptosis.The calcium ion level was increased and caspase-3 activity elevated in HL60 cells after treated by rLZ-8.Conclusion:rLZ-8 could inhibit the proliferation and induce apoptosis of HL60 cells efficiently.The mechanism may be related to increased calcium ion level and elevation of caspase-3 activity.

The effects of intramuscular or intracerebroventricular injection of penta-gastrin(PG) on the action potential amplitude (APA) of the myocardial cells and the heart rate(HR) were studied. The results were as follows:1 ) Injection of 10?g/10?l of PG into one of the lateral ventricles of the ratfailed to produce any effect on APA or HR. When the dosage of PG was doubled(20?g/10?l), then HR could be slowed down significantly (P

We studied the effects of several medicinal insects on biosynthesis of polysaccharides from Ganoderma lucidum in submerged culture. The results showed that the medicinal insect, Catharsius molossus at 5 g/L significantly promoted the biosynthesis of intracellular polysaccharides (IPS) and extracellular polysaccharides (EPS) of G. lucidum, and compared with control, IPS and EPS yields markedly enhanced from (1.93 +/- 0.09) g/L to (2.41 +/- 0.12) g/L and (520.3 +/- 20.2) mg/L to (608.9 +/- 20.2) mg/L, respectively (P < 0.05). Both IPS and EPS consisted of five kinds of components, and IPS-1 and EPS-1 were the major components of IPS and EPS, respectively. Further separation studies showed that IPS-1 was made up of three single compounds, while EPS-1 was made up of two single compounds. There were no new components in both IPS and EPS obtained from G lucidum in submerged culture by the addition of the insect, C. molossus, suggesting the biosynthetic pathways of the major components of IPS and EPS had not been changed.
Animals ; Cockroaches ; chemistry ; Culture Media ; chemistry ; Fermentation ; Materia Medica ; pharmacology ; Polysaccharides ; biosynthesis ; chemistry ; Reishi ; growth & development ; metabolism

Chronic obstructive pulmonary disease (COPD) is an important healthcare problem worldwide. Often, glucocorticoid (GC) resistance develops during COPD treatment. As a classic hypoglycemic drug, metformin (MET) can be used as a treatment strategy for COPD due to its anti-inflammatory and antioxidant effects, but its specific mechanism of action is not known. We aimed to clarify the role of MET on COPD and cigarette smoke extract (CSE)-induced GC resistance. Through establishment of a COPD model in rats, we found that MET could improve lung function, reduce pathological injury, as well as reduce the level of inflammation and oxidative stress in COPD, and upregulate expression of nuclear factor E2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), multidrug resistance protein 1 (MRP1), and histone deacetylase 2 (HDAC2). By establishing a model of GC resistance in human bronchial epithelial cells stimulated by CSE, we found that MET reduced secretion of interleukin-8, and could upregulate expression of Nrf2, HO-1, MRP1, and HDAC2. MET could also increase the inhibition of MRP1 efflux by MK571 significantly, and increase expression of HDAC2 mRNA and protein. In conclusion, MET may upregulate MRP1 expression by activating the Nrf2/HO-1 signaling pathway, and then regulate expression of HDAC2 protein to reduce GC resistance.

Objective To explore the structure changes of white matter in the first-episode schizo-phrenic patients with never-medicated(FESZ)and the relationship between facial emotion perception and white matter(WM)integrity.Methods Sixty-three schizophrenic patients and thirty health control subjects underwent diffusion tensor imaging(DTI)scans.Voxel-based analysis was used to compared fractional ani-sotropy(FA)map between the two groups.Correlations were analyzed with pearson relative analysis between impaired facial emotion perception tested by facial emotion categorization(FEC)and severity of symptoms measured by the Positive and Negative Syndrome Scale(PANSS).Results (1)Compared with controls, FESZ patients showed overall decreased FA in WM of the body of left ventral frontal lobe((MNI(x,y,z):-18,26,-4;t=4.43)),right supramarginal gyrus((MNI(x,y,z):32,-50,26;t=4.27)),left middle oc-cipital gyral((MNI(x,y,z):-26,-60,0;t=4.89)),right middle occipital gyral((MNI(x,y,z):28,-70, 14;t=4.18)),left fusiform gyrus((MNI(x,y,z):-40,-50,0;t=3.92)),left cerebellum anterior lobe ((MNI(x,y,z):-32,-56,-28;t=4.57)),right parahippocampa gyrus1((MNI(x,y,z):32,-10,-14;t=4.16)),right parahippocampa gyrus2((MNI(x,y,z):16,-6,-14;t=4.56)),left anterior cingulate ((MNI(x,y,z):-2,4,-6;t=4.41)),left extra-nuclear((MNI(x,y,z):-2,-10,-6;t=4.44)),right thalamus((MNI(x,y,z):10,-10,2;t=4.20)),left thalamus((MNI(x,y,z):-22,-28,12;t=4.01)), and right caudate((MNI(x,y,z):14,12,8;t=4.87)).(2)Compared with controls,the patients with schizo-phrenia showed a higher shift point and a steeper slope than control subjects in FEC.Correlational analysis re-vealed that the negative correlations were found between the slope and negative factor(r=-0.298,P=0.036),between positive factor and the FA value in WM of the right middle occipital gyral(r=-0.322,P=0.023)and the left middle occipital gyral(r=-0.288,P=0.043),and between the FA value in the left cere-bellum anterior lobe and shift point(r=-0.393,P=0.005),but the positive correlation was found between disorganized/concrete factor and the FA value in the right parahippocampal gyrus(r=0.429,P=0.002).Con-clusions There are extensive microstructural abnormalities in WM of patients with FESZ.Disrupted WM in-tegrity in these regions may constitute a potential neural pathological basis for the facial emotion perception impairments in schizophrenia.

Objective:To improve the understanding of the diagnosis and treatment of early T-cell precursor acute lymphoblastic leukemia (ETP-ALL).Methods:The clinical data of a patient with ETP-ALL who was misdiagnosed as peripheral T-cell lymphoma-not otherwise specified (PTCL-NOS) admitted to the Second Hospital of Lanzhou University in October 2020 were retrospectively analyzed, and the relevant literature was reviewed.Results:The patient who presented "inguinal lymphadenopathy" as the first symptom underwent lymph node biopsy and pathological examination at local hospital, and he was diagnosed as PTCL-NOS according to the consultation of another 2 hospitals. After 2 courses of chemotherapy (CHOPE regimen, GLD regimen, unknown specific medication and dosage), the therapeutic efficacy was poor. For further diagnosis and treatment, this patient came to Lanzhou University Second Hospital. Flow cytometry found blast cells in the bone marrow, and then other related examinations were completed, he was finally diagnosed as ETP-ALL. The chemotherapy regimens of Hyper-CVAD and EA were alternatively used, progressive disease (PD) occurred after 3 courses of treatment, and chidamide was added in the 4th and 5th courses of treatment, the disease still progressed, and the patient died after follow-up. The disease course of the patient was about 12 months.Conclusions:ETP-ALL has unique immunophenotypic characteristics. ETP-ALL patients have a low remission rate after conventional induction therapy, high recurrence rate and poor prognosis. Currently, there is no effective standard treatment regimen, and allogeneic hematopoietic stem cell transplantation or timely addition of new drugs may improve the prognosis.

AIM: To explore the effect of Huatanjiangqi capsule medicated serum (HTJQ) on the resistance of human bronchial epithelial cells (16HBE) to glucocorticoid (GC) stimulated by cigarette smoke extract (CSE). METHODS: After 16HBE cells were treated with HTJQ, the effects of different concentrations of HTJQ on the viability of 16HBE cells were determined by CCK-8 method. 16HBE cells were pretreated with HTJQ, and then cultured with dexamethasone (DEX) and lipopolysaccharide (LPS) for 24 hours, the effect of HTJQ on glucocorticoid (GC) resistance of 16HBE cells was determined by Enzyme-linked immunosorbent assay (ELISA). The effects of HTJQ, sulforaphane (SFN) and glutathione (GSH) on the expression of NF-E2-related factors 2 (Nrf2), Heme oxygenase-1 (HO-1) and histone deacetylase 2 (HDAC2) in 16HBE cells stimulated by CSE were measured by Western blot, and the effects of HTJQ, SFN and GSH on interleukin-8 (IL-8) in 16HBE cells were measured by ELISA. RESULTS: HTJQ promoted the proliferation of 16HBE cells at 1 h, 2 h and 4 h, the results of ELISA and Western blot showed that CSE induced GC resistance and decreased the expression of Nrf2, HO-1 and HDAC2 in 16HBE cells, HTJQ significantly decreased IL-8 and improved GC sensitivity of 16HBE cells (P<0.01), and up-regulated the expression of Nrf2, HO-1 and HDAC2 (P<0.01). In addition, HTJQ significantly up-regulated the level of GSH in 16HBE cells (P<0.01). Nrf2 agonists SFN and GSH significantly improved the glucocorticoid sensitivity of 16HBE cells (P<0.01), and up-regulated the expression of Nrf2, HO-1 and HDAC2 (P<0.01). CONCLUSION: HTJQ improves the GC resistance of 16HBE cells by up-regulating the expression of Nrf2/HDAC2 protein and the level of intracellular GSH.