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The coronavirus SARS-CoV-2 has mutated quickly and caused significant global damage. This study characterizes two mRNA vaccines ZSVG-02 (Delta) and ZSVG-02-O (Omicron BA.1), and associating heterologous prime-boost strategy following the prime of a most widely administrated inactivated whole-virus vaccine (BBIBP-CorV). The ZSVG-02-O induces neutralizing antibodies that effectively cross-react with Omicron subvariants following an order of BA.1>BA.2>BA.4/5. In naive animals, ZSVG-02 or ZSVG-02-O induce humoral responses skewed to the vaccines targeting strains, but cellular immune responses cross-react to all variants of concern (VOCs) tested. Following heterologous prime-boost regimes, animals present comparable neutralizing antibody levels and superior protection across all VOCs. Single-boost only generated ancestral and omicron dual-responsive antibodies, probably by "recall" and "reshape" the prime immunity. New Omicron-specific antibody populations, however, appeared only following the second boost with ZSVG-02-O. Overall, our results support a heterologous boost with ZSVG-02-O, providing the best protection against current VOCs in inactivated virus vaccine- primed populations.
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ObjectiveTo determine the therapeutic effect of Gegentang granules on a disease-syndrome mouse model combining human coronavirus 229E （hCoV-229E） pneumonia with Hanshi Yidu Xifei syndrome in vivo. MethodMice were randomly divided into normal group， infection group， cold-dampness group， model group， chloroquine phosphate group （0.18 g·kg-1）， interferon-α2b （IFN-α2b） group （1.83×106 U·kg-1）， Gegentang granules high-dose and low-dose groups （6.6， 3.3 g·kg-1） with 10 mice in each group. Cold-dampness environment and hCoV-229E infection were used for modeling， and the general status and lung index of mice in each group were observed. The viral load in lung tissue was detected by real-time fluorescent quantitative polymerase chain reaction （Real-time PCR）， the pathological changes in lung tissue were evaluated by hematoxylin-eosin （HE） staining， the levels of serum gastrointestinal hormones and inflammatory factors in lung tissue were detected by enzyme-linked immunosorbent assay （ELISA）， and the percentage of peripheral blood lymphocytes was detected by flow cytometry. ResultComparing with model group， Gegentang granules could significantly alleviate the physical signs of Hanshi Yidu Xifei syndrome， including listlessness， weakness of limbs， sticky stool， etc. Comparing with model group， Gegentang granules high-dose group significantly reduced lung index， histopathological score of interstitial lung and bronchus， and the level of serum motilin （P<0.05， P<0.01）， two doses of Gegentang granules could significantly increase the level of serum gastrin （P<0.05， P<0.01）， the percentage of CD4+， CD8+ T lymphocytes in peripheral blood （P<0.05， P<0.01）， and the level of tumor necrosis factor-α （TNF-α） in lung tissue was significantly decreased （P<0.01）， and the level of interleukin-6 （IL-6） showed decreasing tendency. ConclusionGegentang granules has therapeutic effect on model mice. It can improve the appearance and behavior characterization， regulate the level of gastrointestinal hormones， decrease lung index and histopathological score， and possibly play an immunomodulatory role by inhibiting the expression of inflammatory cytokines in lung tissue and restoring the percentage of peripheral blood lymphocytes.
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ObjectiveTo determine the therapeutic effect of Gegentang granules on a disease-syndrome mouse model combining human coronavirus 229E （hCoV-229E） pneumonia with Hanshi Yidu Xifei syndrome in vivo. MethodMice were randomly divided into normal group， infection group， cold-dampness group， model group， chloroquine phosphate group （0.18 g·kg-1）， interferon-α2b （IFN-α2b） group （1.83×106 U·kg-1）， Gegentang granules high-dose and low-dose groups （6.6， 3.3 g·kg-1） with 10 mice in each group. Cold-dampness environment and hCoV-229E infection were used for modeling， and the general status and lung index of mice in each group were observed. The viral load in lung tissue was detected by real-time fluorescent quantitative polymerase chain reaction （Real-time PCR）， the pathological changes in lung tissue were evaluated by hematoxylin-eosin （HE） staining， the levels of serum gastrointestinal hormones and inflammatory factors in lung tissue were detected by enzyme-linked immunosorbent assay （ELISA）， and the percentage of peripheral blood lymphocytes was detected by flow cytometry. ResultComparing with model group， Gegentang granules could significantly alleviate the physical signs of Hanshi Yidu Xifei syndrome， including listlessness， weakness of limbs， sticky stool， etc. Comparing with model group， Gegentang granules high-dose group significantly reduced lung index， histopathological score of interstitial lung and bronchus， and the level of serum motilin （P<0.05， P<0.01）， two doses of Gegentang granules could significantly increase the level of serum gastrin （P<0.05， P<0.01）， the percentage of CD4+， CD8+ T lymphocytes in peripheral blood （P<0.05， P<0.01）， and the level of tumor necrosis factor-α （TNF-α） in lung tissue was significantly decreased （P<0.01）， and the level of interleukin-6 （IL-6） showed decreasing tendency. ConclusionGegentang granules has therapeutic effect on model mice. It can improve the appearance and behavior characterization， regulate the level of gastrointestinal hormones， decrease lung index and histopathological score， and possibly play an immunomodulatory role by inhibiting the expression of inflammatory cytokines in lung tissue and restoring the percentage of peripheral blood lymphocytes.
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Objective To evaluate the protective effects of Rosemary's chloroform extract on cerebral ischemia in mice and acute toxicity.Methods The protective of rosemary's chloroform extract on cerebral ischemia was observed and compared by the mice models of cerebral anoxia and ischemia,thrombus formation in vivo,and chloroform induced arrhythmias.Rosemary's Chloroform Extract was given orally to mice to evaluate acute toxicity.Results Rosemary's chloroform extract had different degrees of inhibition of collagen-the adrenaline induced thrombus formation,and prolonged acute ischemic mice brains off mouth breathing time and increase the number of mouth breathing (P ＜0.05 or P ＜0.01);Chloroform extract significantly reduced the incidence of chloroform induced ventricular arrhythmias.Acute toxicity results suggested that a female rat died in the next day of chloroform extract group,no additional toxicity was observed.Conclusion Rosemary's chloroforrm extract has significant protective effect on cerebral ischemia and hypoxia in mice.
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The protective effect of Compound Yangshen Granules was observed in myocardial infarction rat model. Rats were randomly divided into 6 groups: the model group, the control group (sham operated), the positive drug group, and small, medium, and large dosage of the Yangshen granule groups, respectively. The rats in the 3 Yangshen granule groups were orally administrated with 0.7 g/kg, 1.4 g/kg, and 2.8 g/kg for 7 consecutive days, whereas the rats of the positive drug group treated with 0.14 g/kg of Danshen Dropping Pills, and rats in the control and model groups orally administrated with saline. The rat model of acute myocardial infarction was established with ligation of coronary artery. Electrocardiograms at different time points, the blood rheology, myocardial enzymes, infarct size, and myocardial morphologic changes were measured. The results demonstrated that the granules could improve blood rheology, decrease st-segment of electrocardiograms and the activities of LDH and CK in serum, reduce myocardial infarction size, and alleviate myocardial histopathologic changes. In addition, the effect of the granules depended on the dose administrated orally. The results suggest that the Yangshen granules could produce cardioprotection effect and have potential benefits in the prevention of ischemic heart disease.
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<p><b>OBJECTIVE</b>To investigate chemical constituents of the root bark of Tripterygium hypoglaucum.</p><p><b>METHOD</b>Compounds were isolated by column chromatography on silica gel and Sephadex LH-20, and their structures were identified on the basis of spectral data (MS, 1H-NMR and 13C-NMR).</p><p><b>RESULT</b>Twelve compounds were isolated and identified as friedelin (1), 3-oxo-olean-9(11),12-diene (2), canophyllal (3), 3-acetoxy oleanolic acid (4), triptophenolide (5), triptonoterpene methyl ether (6), tricosanoic acid (7), beta-sitosterol (8), stearic acid (9), glut-5-en-3beta,28-diol (10), palmitic acid (11) and daucostorol (12).</p><p><b>CONCLUSION</b>Compounds 1, 2, 3, 7 and 10 were isolated from T. hypoglaucum and 7 from the genus Tripterygium for the first time.</p>
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Chromatography , Methods , Diterpenes , Chemistry , Fatty Acids, Unsaturated , Chemistry , Magnetic Resonance Spectroscopy , Methods , Mass Spectrometry , Methods , Oleanolic Acid , Chemistry , Organic Chemicals , Chemistry , Palmitic Acid , Chemistry , Plant Roots , Chemistry , Metabolism , Sitosterols , Chemistry , Stearic Acids , Chemistry , Tripterygium , Chemistry , Metabolism , Triterpenes , ChemistryABSTRACT
Motherwort (Herb of Leonurus heterophyllus) was a traditional Chinese medicine used for the treatment of various kinds of gynaecological diseases, which was considered as non-toxic medicine since ancient times. However, adverse effects such as kidney damage, uterus damage, allergy and diarrhea were frequently reported recently. This paper reviews the possible target site, toxic dosage, chemical substance and other related factors of these kidney damage caused by motherwort from both the clinic and animal experiment view.
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Animals , Humans , Drugs, Chinese Herbal , Kidney , Pathology , Leonurus , ChemistryABSTRACT
Objective: To explore the relationship between the preoperative immune state and the progress, the prognosis in patients with gastric carcinoma. Methods: The NK cell activity (lactdehydrogenase releasing),the level of T cells subgroup (FACS) were detected preoperatively. The data of intra operative findings, pathologic observations and the results of clinical follow up were also studied. Results: The preoperative immune function in cancer patients was significantly reduced compared with the control group, and it had a significantly negative correlation with the stage of the cancer, but a positive correlation with the prognostic results. Conclusion: The detection of the preoperative immune state can play an important role in the estimation of the disease progress and the prognosis in cancer patients.
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Objective To provide basis for choosing a proper processed method of Polygonum multiflorum.Methods To compare and analyze main active component changes in the processed products of P.multiflorum by being steamed without any adjuvants and with soya-bean milk of different concentrations.Results There was no marked difference for variously processed products in the main active components,anthraquinone and stilbene glucoside in P.multiflorum.Conclusion It is feasible to replace the steamed with soya-bean milk by the steamed without any adjuvants.
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The contents of plasma somatostatin-like-immunoreactivity (SLI) were measured by radioimmunoassay in patients with colorectal cancer. The results showed that the content of SLl in cancer group, especially in Dukes A, B patients, was significantly higher than that in contol group (P
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The dynamic changes of serum gastrin (SG) levels were observed in rats during chemical induction of colorectal cancer by 1,2-dimethylhydrazine (DMH). It was found that the mean SG concentration in the induced rats was very significantly lower than that in the control rats (P0.05) from week 11 to 20 after induction;the mean SG concentration in the induced rats with colorectal cancer in Dukes A or B stage was very significantly higher than that in those without cancer or with cancer in Dukes C or D stage (P
