ObjectivesTo retrospectively analyze the clinicopathological features of neuroblastoma (NB) and investigate the signiifcance of abnormality ofN-myc and anaplastic lymphoma kinase (ALK) gene copy number change as well asALKmu-tations in NB.Methods Eighty-three NB patients were collected and classiifed into different subgroups according to the clinical stage and histology. Fluorescence in situ hybridization (FISH) was performed to detect the abnormalities ofN-mycandALK genes. The extracted DNA was ampliifed by PCR and sequenced to investigate the point mutations of theALK gene. Follow-up data were collected and survival analysis was performed.ResultsFISH detection showed that the aberration ofN-mycgene copy number presented as gain and ampliifcation. The aberration ofALK gene presented as point mutation and gain. It was shown that 17 cases had the abnormality of bothN-myc andALK gene. Survival analysis showed that the prognostic factors included the clinical stage, age and abnormality ofN-myc genes.ConclusionDetection ofN-myc andALK abnormality in NB would be helpful for evaluating the prognosis and providing theoretical basis forALK target therapy.

Objective To explore the effect of NPY on activation of primary microglia and the production of in?terleukin-1β. Methods Rat primary cortical microglia was cultured and divided into control group, LPS group, NPY+LPS group, NPY group and BIBP3226+NPY+LPS group. Microglia in control group were incubated with serum-free me?dium for 6 h;microglia in LPS group were incubated with serum-free medium plus LPS for 6 h;microglia in NPY+LPS group were incubated with serum-free medium plus NPY and LPS for 6 h; microglia cells in NPY group were incubat?ed in serum-free medium plus NPY for 6 h; microglia cells in BIBP3226+NPY+LPS group were incubated in se?rum-free medium including BIBP3226 、NPY and LPS for 6 h. After 6 h , Primary cultured microglia were stained us?ing IBA-1 antibody and examined under the fluorescence microscope. The protein levels of IL-1βin the culture media and the mRNA expression levels of IL-1βin the microglia of different groups were detected using the methods of Elisa and RT-PCR. Results After 6 h, the contents of IL-1 βin the culture media and the mRNA expression levels of IL-1βin the cells of LPS group increased remarkably compared with control group (P<0.05) and the microglia were activat? ed. Compared with LPS group, the contents of IL-1 βin the culture media. the mRNA expression levels of IL-1β and the activity of microglia in LPS+NPY group were significantly decreased .Compared with LPS+NPY group, the contents of IL-1βin the culture media. the mRNA expression levels of IL-1β and the activity of microglia in BIBP3226+NPY+LPS group were increased (P<0.05). There were no significant differences in the contents of IL-1βin the culture media. the mRNA expression levels of IL-1βand the activity of microglia between BIBP3226+NPY+LPS group and LPS group or between NPY group and the control group. Conclusion NPY can inhibit the biological activity of microglia and IL-1βproduction through NPY Y1 receptorin the microglia.

OBJECTIVETo investigate the influence of high frequency partial liquid ventilation (HFJV) on the cardiopulmonary function in dogs with inhalation injury.

METHODSSixteen mongrel dogs inflicted by hot steam inhalation were subjected to severe inhalation injury and were randomly divided into control (C) and treatment (T) groups. The dogs in both groups were all given HFJV. In addition, the dogs in T group were simultaneously supplied with perfluorocarbon liquid (3 ml/kg) into the lungs slowly via tracheal intubation for liquid ventilation. The blood gas analysis, pulmonary compliance, airway resistance and hemodynamic parameters were determined at 30, 60 and 90 minutes after ventilation.

RESULTSThe PaO(2) in T group increased progressively, which was significantly higher than the post-injury value at all time points (P < 0.05). While the PaO(2) in C group exhibited no difference to the post-injury value at all time points. The PaCO(2) in T group increased obviously and was higher than the post-injury value at 60 and 90 post-ventilation minutes (P < 0.05). Furthermore, the PaO(2) in all the time points in T group was a little higher than that in C group (P > 0.05) and PaCO(2) in T group was much higher than that in C group at 90 min after ventilation (P < 0.05). But there was no difference between the two groups in terms of dynamic/static pulmonary compliance and airway resistance as well as the hemodynamics.

CONCLUSIONCompared with simple HFJV, high frequency partial liquid ventilation seemed to be beneficial to the oxygenation after inhalation injury and to be no influence on the hemodynamics.

Airway Resistance ; Animals ; Blood Gas Analysis ; Burns, Inhalation ; physiopathology ; therapy ; Dogs ; Female ; High-Frequency Jet Ventilation ; Liquid Ventilation ; Lung Compliance ; Male ; Pulmonary Circulation ; Pulmonary Gas Exchange ; Respiration, Artificial ; methods ; Respiratory Function Tests ; Time Factors

Objective:To investigate the mechanism of crush syndrome (CS) induced by crush injury on myocardial cells in rats.Methods:Thirty two male Sprague Dawley (SD) rats were randomly divided into control group, CS-0 group, CS-12 group and CS-24 group with 8 rats in each group. CS model was made by self-made extruder and perfused with 4% paraformaldehyde for 0, 12 and 24 h. The morphological changes of myocardial tissue were observed by hematoxylin staining. The apoptosis of cardiomyocytes was detected by terminal dexynucleotide transferase-mediated nick end labeling (TUNEL). The levels and activities of malondialdehyde (MDA), superoxide dismutase (SOD), lactose dehydrogenase (LDH), interleukin-6 (IL-6), interleukin-1 β (IL-1 β), tumor necrosis factor-α (TNF- α) in myocardial homogenate were detected by enzyme-linked immunosorbent assay (ELISA). The expressions of Caspase-3, Bax, Bcl-2 and necrosis factor-κB (NF-κ B) were detected by Western blot.Results:Compared with the control group, the myocardial tissue of CS model group had different degrees of morphological damage; compared with the control group, the apoptosis rate, Caspase-3 and Bax protein expression levels of CS-0 group, CS-12 group and CS-24 group were significantly increased ( P<0.05), and the expression level of Bcl-2 protein was significantly decreased ( P<0.05); compared with the control group, the levels of MDA, LDH, IL-6, IL-1β, TNF-α and p65 protein phosphorylation in the myocardial homogenate of CS-0 group, CS-12 group and CS-24 group were significantly increased ( P<0.05), and SOD activity was significantly decreased ( P<0.05). Conclusions:CS may inhibit oxidative stress and induce inflammatory reaction by activating NF-κ B pathway, thus damaging myocardial cells in rats.

Objective : To discuss the changes of serum lipoprotein phospholipase A2 (Lp - PLA2) and c-reactive protein (CRP) levels in atorvastat in treatment for the patients with periodontitis and hyperlipidemia. Methods : 148 patients with periodontitis and hyperlipidemia were involved, and divided into basic group (foundation treatment, 82 cases) and statin group (foundation treatment plus 20 mg atorvastatin treatment, 66 cases). 40 healthy cases from the medical center health personnel were selected as the healthy group. Attachment levels (AL), bleeding index (BI), serum total cholesterol (TC), triacylglycerol (TG), Lp - PLA2, and CRP levels were checked and compared before and after 6 months of treatment. Lp - PLA2 and CRP were checked by enzyme linked immunosorbent assay (ELISA), and their relationship were analyzed by the method of Pearson. Results: When the disease group were compared with the healthy group, the statistics were as follows: AL（3.92 ± 0.51 mm vs 0.42 ± 0.06 mm）, BI（2.81 ± 0.48 vs 0.34 ± 0.05）, TC（5.27 ± 0.83 mmol/L vs 4.02 ± 0.62 mmol/L）, TG（2.67 ± 0.41 mmol/L vs 0.93 ± 0.17 mmol/L）, Lp-PLA2（243.57 ± 58.71 μg/L vs 132.24 ± 34.27 μg/L）, CRP（9.72 ± 3.27 μg/L vs 3.21 ± 0.87 μg/L）, and the statistics of disease group were significantly higher than the healthy group with a significant difference (P< 0.05). When Statin group was compared with basis group, the statistics were as follows: AL（3.70 ± 0.10 mmvs 3.78 ± 0.11 mm）, BI（1.05 ± 0.28 vs 1.43 ± 0.32）, TC（3.82 ± 0.67 mmol/L vs 4.51 ± 0.71 mmol/L）, TG（1.30 ± 0.29 mmol/L vs 1.83 ± 0.34 mmol/L）, Lp-PLA2（157.43 ± 40.18 μg/L vs 199.43 ± 47.24 μg/L）, CRP（4.21 ± 3.02 μg/L vs 6.37 ± 3.28 μg/L）, and the statistics of statin group were lower than that in basis group with a significant difference (P< 0.05). Pearson analysis showed Lp-PLA2 and CRP levels were positively correlated (r = 0.672, P< 0.05). Conclusion It shows the changes of Lp- PLA2 and CRP level were related with the clinical conditions of periodontitis combined with hyperlipidemia, and atorvastatin therapy can effectively reduce the body's blood lipid levels, and improve the treatment effects of periodontitis combined with hyperlipidemia.

Tuoli Xiaodusan is the 65^th formula in the Catalogue of Ancient Famous Classical Formulas（First Batch）. In this study， the bibliometric method was used to summarize and verify the ancient books about Tuoli Xiaodusan in terms of its historical origin， composition and dosage of the formula， indications， decoction and administration method， and processing， etc. According to the research， there is no definite date of the formation of Tuoli Xiaodusan， the earliest can be traced back to Lizhai Waike Fahui in Ming dynasty， which has been widely circulated， with many versions of prescription composition， and the modern influential version is from Waike Zhengzong in Ming dynasty， which is made up of 12 Chinese herbs including Ginseng Radix et Rhizoma（3.73 g）， Chuanxiong Rhizoma（3.73 g）， Paeoniae Radix Alba（3.73 g）， Astragali Radix（3.73 g）， Angelicae Sinensis Radix（3.73 g）， Atractylodis Macrocephalae Rhizoma（3.73 g）， Poria（3.73 g）， Lonicerae Japonicae Flos（3.73 g）， Angelicae Dahuricae Radix（1.87 g）， Glycyrrhizae Radix et Rhizoma（1.87 g）， Gleditsiae Spina（1.87 g）， Platycodonis Radix（1.87 g）. The herb origins almost follow the 2020 edition of Chinese Pharmacopoeia， except that Angelica dahurica var. formosana is only recommended as the origin of Angelicae Dahuricae Radix， and Glycryyhiza uralensis is only recommended as the origin of Glycyrrhizae Radix et Rhizoma. All the herbs are recommended to be used in the raw products. As for the preparation method， it is recommended to decoct with water， add 400 mL of water， boil until 160 mL， and take 2-3 times a day. The formula has the functions of nourishing Qi and nourishing blood， detoxifying and draining pus， and was mainly used to treat ulcerative diseases with the syndrome of syndrome of healthy Qi deficiency and pathogenic factors excess in ancient times， and in modern times， it is used for a wide range of treatment， involving the skin and soft tissues， bones， digestion and many other systemic diseases， and is also mainly used for syndrome of healthy Qi deficiency and pathogenic factors excess. In this study， the ancient and modern applications of Tuoli Xiaodusan were summarized， and its key information was identified， providing a basis for its wider clinical application， in-depth research and formulation development.

Autophagy, as a highly conserved process of recovery and degradation of eukaryotic components, plays an important role in cell hunger response, maintenance of normal cell activity and specific functions in lung tissue. When cells are damaged due to physiological, pathological or chemical factors, autophagosomes and lysosomes fuse to produce a large number of autophagosomes, thus inducing the initiation of autophagy process, which is beneficial to protect cells from injury. Recent studies have found that autophagy related signaling pathways are highly correlated with the occurrence and development of a variety of viral pneumonia, such as swine influenza A (H1N1) virus, highly pathogenic avian influenza virus (H5N1), severe acute respiratory syndrome (SARS), middle east respiratory syndrome (MERS) and new coronavirus pneumonia (COVID-19). This paper will introduce the five viral pneumonia that have a great impact on China and even the whole world, and elaborate the mechanism of autophagy in these disease. Hopefully it could provide theoretical basis and effective methods and means for targeted autophagy treatment of viral pneumonia.

Xianfang Huomingyin is known as the first prescription of surgery， also known as Shenxian Huomingyin and Zhenren Huomingyin. The earliest one was from Renzhai Zhizhi in the Southern Song dynasty. It was composed of 13 mainstream medicines such as Angelicae Dahuricae Radix， Saposhnikoviae Radix， Paeoniae Radix Rubra， and three modified medicines such as Rhei Radix et Rhizoma， Momordicae Semen and Astragali Radix. It has the effects of clearing heat and detoxifying， detumescence and ulceration， promoting blood circulation and relieving pain， and is mainly used to treat Yang syndrome. In this study， the bibliometrics method was used to systematically study the historical evolution， prescription composition， dosage， indications， decocting methods， administration methods， drug processing and ancient and modern applications of Xianfang Huomingyin. As for the drug origin， pangolin is consistent with the 2015 edition of Chinese Pharmacopoeia， the origins of the remaining drugs are consistent with the 2020 edition of Chinese Pharmacopoeia. According to the ancient and modern dosage conversion， the dosage of each drug is as follows：Angelicae Dahuricae Radix， Paeoniae Radix Rubra， Fritillariae Thunbergii Bulbus， Glycyrrhizae Radix et Rhizoma and Trichosanthis Radix， Olibanum of 4.13 g， Gleditsiae Spina and Myrrha of 2.07 g， Angelicae Sinensis tail（stir-fried with wine） and Citri Reticulatae Pericarpium of 6.2 g， Saposhnikoviae Radix（removing reed） of 2.89 g， pangolin（stir-fried with clam powder） of 4.14 g， Lonicerae Japonicae Flos of 12.39 g， or adding Rhei Radix et Rhizoma of 4.13 g and Momordicae Semen（shelled） of 3.3 g， adding Astragali Radix of 4.13 g for body deficiency. The above medicines were decocted with 450 mL of yellow rice wine to 300 mL， 1 dose for each time， 3 doses for each day， and warmed before or 0.5 h after meals， 1-6 doses， and discontinue medication as soon as get effect. Because this formula is easy to hurt the spleen and stomach， it should not be taken more. In the follow-up， it should be used in conjunction with Tuoli Xiaodusan， and other related symptoms of patients can be further improved through dialectical addition and subtraction. This formula has the efficacy of disinfection and pus discharge， removing blood stasis and relieving pain. All carbuncle gangrene without ulceration at the beginning， and for the empirical and heat syndrome. Modern applications involve more than 200 kinds of diseases with heat syndrome， emergency and excess syndrome as the main syndrome differentiation points in dermatology， peripheral vascular department and other departments. In a word， this paper studies the literature of Xianfang Huomingyin in order to provide a basis for its wider and deeper clinical application and development research.