Neuroendocrine carcinoma (NEC) represents a category of malignant tumors originating from neuroendocrine cells. Given that NEC cells exhibit characteristics of both neural and endocrine cells, they can hijack neuronal signaling pathways and dynamically regulate the expression of neuronal lineage markers during tumor metastasis, thereby constructing a microenvironment conducive to tumor growth and metastasis. Conversely, alterations in the tumor microenvironment can enhance the interactions between neurons and tumor cells, ultimately synergistically promoting the metastasis of NEC. This review highlights recent advancements in the field of cancer neuroscience, uncovering neuronal lineage markers in NEC that facilitate tumor dissemination through mediating crosstalk, bidirectional communication, and synergistic interactions between tumor cells and the nervous system. Consequently, the latest findings in tumor neuroscience have enriched our understanding of the biological mechanisms underlying tumor metastasis, opening new research avenues for a deeper comprehension of the complex biological processes involved in tumor metastasis, particularly brain metastasis. This review provides a comprehensive review of the crosstalk between tumor cells and neural signaling in the metastasis of NEC.
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Humans ; Carcinoma, Neuroendocrine/metabolism* ; Signal Transduction ; Animals ; Neoplasm Metastasis ; Neurons/pathology* ; Tumor Microenvironment ; Cell Communication

Objective To observe the clinical efficacy of"three modulation acupuncture"combined with repeated functional magnetic stimulation(rFMS)in the treatment of neurogenic bladder with detrusor muscle weakness after spinal cord injury.Methods A total of 120 patients with neurogenic bladder with detrusor muscle weakness after spinal cord injury were divided into conventional treatment group,"three modulation acupuncture"treatment group,rFMS treatment group and comprehensive treatment group according to the random number table method,with 30 patients per group.The conventional treatment group was given conventional rehabilitation treatment,the"three modulation acupuncture"treatment group was treated with"three modulation acupuncture"(modulating spirit,modulating reflex arc,and modulating lower jiao and waterway)based on conventional rehabilitation treatment,the rFMS treatment group was treated with rFMS based on conventional rehabilitation treatment,and the comprehensive treatment group was treated with"three modulation acupuncture"and rFMS based on conventional rehabilitation treatment.The first desire to void(FDV),maximum cystometric capacity(MCC),maximum detrusor pressure of urine storage period(Pdet.max),maximum intravesical pressure of urine storage period(Pves.max),average daily urination frequency,average daily urine leakage,residual urine volume,and neurogenic bladder symptom scores of the patients were compared before and after treatment,and the clinical effectiveness of each group was evaluated.Results After treatment,the FDV,MCC,and Pdet.max of the four groups were all increased compared with those before treatment,and Pves.max,the average daily urination frequency,the average daily frequency of urine leakage,the residual urine volume,and the neurogenic bladder symptom scores were all decreased(P<0.05).After treatment,the FDV,MCC,and Pdet.max of the"three modulation acupuncture"treatment group,the rFMS treatment group and the comprehensive treatment group were all higher than those of the conventional treatment group,and Pves.max,the average daily urination frequency,the average daily frequency of urine leakage,the residual urine volume,and the neurogenic bladder symptom scores were all lower(P<0.05).After treatment,the comprehensive treatment group had a higher FDV,MCC,and Pdet.max than the"three modulation acupuncture"treatment group and rFMS treatment group,and Pves.max,the average daily urination frequency,the average daily frequency of urine leakage,the residual urine volume,and the neurogenic bladder symptom scores were lower(P<0.05).The curative efficiency rates were 86.2%(25/29)in the"three modulation acupuncture"treatment group,85.7%(24/28)in the rFMS treatment group,and 92.6%(25/27)in the comprehensive treatment group,which was higher than that of the conventional treatment group,which was 75.9%(22/29).Conclusion"Three modulation acupuncture"and rFMS can effectively improve the functional status of the bladder in patients of neurogenic bladder with detrusor muscle weakness after spinal cord injury,and their combined application has a synergistic effect.

Pain is an uncomfortable and emotional experience associated with,or similar to,real or po-tential tissue damage.However,far from being a purely physiological sensation,pain involves complex emo-tional and neuromodulatory mechanisms.The pain neural circuit is a complex biological system,covering the multi-level structure of the central nervous system from peripheral neurons to the cerebral cortex,thalamus,a-mygdala and dorsal horn of the spinal cord,participating in the perception,conduction,and regulation of pain signals,involves multiple molecular and cellular interactions to build a comprehensive pain perception process.In recent years,the field of pain neural circuit research has used a variety of scientific and technological tools to provide the theoretical and technical support for the in-depth understanding and treatment of pain.This article aims to provide a comprehensive research status quo for the scholars in related fields and new ideas for clinical pain research and treatment by combing the application of different technologies in the study of pain neural circuits.

Objective To optimize the supercritical CO₂ extraction conditions of volatile oil from Wenjing Huoxue cataplasm. Methods On the basis of single factor investigation on the comprehensive score of extraction yield , osthole content and isoimperatorin, the effects of extraction temperature, pressure and time on the comprehensive score of extracted volatile oil were optimized by orthogonal design. Results In the single factor experiment, the factors that had a great influence on the comprehensive score of the extracted volatile oil were extraction temperature, extraction pressure and extraction time. The orthogonal experiment results showed that the extraction temperature and extraction pressure had a significant influence on the comprehensive score of volatile oil. The optimized extraction process was as follows: extraction temperature at 55 ℃, extraction pressure as 30 MPa, and extraction time as 2 h. Conclusion The extraction process optimized in this experiment is stable and feasible, which could be used for the extraction and preparation of the volatile oil.

The α-amino acid ester acyltransferase (SAET) from Sphingobacterium siyangensis is one of the enzymes with the highest catalytic ability for the biosynthesis of l-alanyl-l-glutamine (Ala-Gln) with unprotected l-alanine methylester and l-glutamine. To improve the catalytic performance of SAET, a one-step method was used to rapidly prepare the immobilized cells (SAET@ZIF-8) in the aqueous system. The engineered Escherichia coli (E. coli) expressing SAET was encapsulated into the imidazole framework structure of metal organic zeolite (ZIF-8). Subsequently, the obtained SAET@ZIF-8 was characterized, and the catalytic activity, reusability and storage stability were also investigated. Results showed that the morphology of the prepared SAET@ZIF-8 nanoparticles was basically the same as that of the standard ZIF-8 materials reported in literature, and the introduction of cells did not significantly change the morphology of ZIF-8. After repeated use for 7 times, SAET@ZIF-8 could still retain 67% of the initial catalytic activity. Maintained at room temperature for 4 days, 50% of the original catalytic activity of SAET@ZIF-8 could be retained, indicating that SAET@ZIF-8 has good stability for reuse and storage. When used in the biosynthesis of Ala-Gln, the final concentration of Ala-Gln reached 62.83 mmol/L (13.65 g/L) after 30 min, the yield reached 0.455 g/(L·min), and the conversion rate relative to glutamine was 62.83%. All these results suggested that the preparation of SAET@ZIF-8 is an efficient strategy for the biosynthesis of Ala-Gln.
Escherichia coli/genetics* ; Glutamine ; Zeolites/chemistry* ; Amino Acids

Objective:To evaluate the role of mitochondrial calcium homeostasis in hyperoxia-induced injury to alveolar epithelial cells typeⅡ(AECⅡ) in rats.Methods:Rat AECⅡcell lines (RLE-6TN) were randomly divided into 3 groups ( n=18 each) using a random number table method: nomoxia group (group C), hyperoxia group (group H), and hyperoxia plus ruthenium red group (group HR). The cell lines were cultured in a conventional incubator for 4 h in group C. The cell lines were incubated in an incubator with 90% O 2 for 4 h in group H. In group HR, ruthenium red 2 μmol/L was added first, and then the cell lines were incubated in an incubator with 90% O 2 for 4 h. After the treatment, the Ca 2+ concentrations in mitochondria were measured using the mitochondrial Ca 2+ specific fluorescent probe Rhod-2-AM, the ROS level was measured using the fluorescent probe DCFH-DA, and the cell morphology and mitochondrial ultrastructure were observed. Results:Compared with group C, the Ca 2+ concentrations in mitochondria and ROS level were significantly increased in H and HR groups ( P<0.05). Compared with group H, the Ca 2+ concentrations in mitochondria and ROS level were significantly decreased in group HR ( P<0.05). Compared group C, the cell volume was reduced, the morphology was shrunken round, the cell arrangement was loose, the mitochondrial double-layer membrane structure was broken, and the mitochondrial cristal fragments were observed in group H. Compared with group H, the cell morphology was significantly improved, and the slight damage to mitochondrial double-layer membrane structure was found, and the structure of mitochondrial cristae was normal in group HR. Conclusion:Mitochondrial calcium homeostasis is involved in the pathophysiological process of hyperoxia-induced injury to AECⅡ in rats.

Objective To observe the influence of edaravin combined with cerebroside-kinin on the level of glial fiber acidic protein (GFAP) and ubiquitin carboxyl terminal-L1 (UCH-L1) in the treatment of severe craniocerebral injury.Methods From January 2016 to December 2017,a total of 123 patients with severe craniocerebral injury were selected in our hospital,and randomly(random number) assigned to the observation group (61 cases) and control group (62 cases).Patients in the control group were given cerebroside-kinin,and patients in the observation group were given cerebroside-kinin and edaravone.The acute physiology and chronic health evaluation score (APACHE Ⅱ),activities of daily living (ADL) score,serum malonaldehyde (MDA),superoxide dismutase (SOD),myeloperoxidase (MPO),matrix metalloprotein 9 (MMP-9),GFAP and UCH-L1 before and after treatment were observed.The side effects were also recorded.Results The APACHE Ⅱ score was significantly reduced in both groups after treatment (P=0.008;P=0.003),and was lower in the observation group than that in the control group (P=0.013).The ADL score of both groups increased after treatment (P=0.025;P=0.008),and was higher in the observation group than that in the control group (P=0.012).After treatment the levels of MDA,SOD and MPO in the observation group were significantly higher than those in the control group (P＜0.05);the level of MMP-9 in the observation group was significantly lower than that in the control group (P=0.012);the levels of GFAP and UCH-L 1 in the observation group were significantly higher than those in the control group (P=0.014;P=0.035).There was no significant difference of the total side effect incidence between the observation group and the control group (8.06％ vs 9.83％,x 2=0.088,P=0.719).Conclusions The treatment by edaravone combined with cerebroside-kinin on severe craniocerebral injury may effectively protect the nerve cells,improve nerve function,clinical efficacy and the body's antioxidant capacity,reduce the serum levels of GFAP,UCH-L1,and have better safety.

Lymphoblastic lymphoma (LBL) is a rare aggressive neoplasm of T-/B-precursors resembling acute lymphoblastic leukemia,which develops very fast with high morbidity.T-lymphoblastic lymphoma (T-LBL),accounting for 85％-90％ of LBL,develops more frequently in children and young adults and is typically characterized by a grossly enlarged mediastinum,whose diagnostic hallmark is the expression of a T-precursor cell immunophenotype.Recently many new diagnostic technologies,such as polymerase chain reaction,flow cytometry,fluorescence in situ hybridization and so on,have been used for the dignosis of LBL,which lay the foundation of the precision therapy for LBL.The adoption of pediatric-derived,intensive lymphoblastic leukemia-like protocols leads to significantly improved results,with event free survival about 75％-90％ in children.New clinical trials will introduce and confirm the value of new drugs and targeting agents,which may have more good effects.New minimal residual disease assessment methods(eg,next generation sequencing,NGS) make it possible to detect MRD in different subtype of childhood lymphomas.Now,the new advances in diagnosis and treatment of T-LBL were reviewed.

Objective: To integrate the best evidence of venous thromboembolism (VTE) prevention into practice, improve nurses′ compliance, and reduce the incidence of VTE in orthopaedic department. Methods: Guided by the standard procedure in the JBI-Paces program, collected the best evidence from online databases and set the standards. Collected data through field observation, interviews and review of nursing records. A total of 167 patients and 36 nurses we recruited in the study and audited twice. We judged the result by the knowledge level of nurses and patients, nurses′ compliance with the evidence and the incidence rate of VTE. Results: In baseline review, three criteria of poor compliance, "the correct situation of daily inspection of VTE risk assessment", "Wear gradient pressure stockings correctly for VTE high-risk patients", "Intermittent pneumatic compression device (IPCD) used twice a day for 30 minutes each time", were significantly improved after the application of evidence, increased from 47.22% (17/36) ,36.11% (13/36) ,36.11% (13/36) to 86.11% (31/36) , 86.11% (31/36) , 91.67 (33/36) respectively (χ²=12.25, 18.94, 24.08, all P < 0.05); The incidence of VTE decreased from 2.7% to 0 (P=0.195); the correct rate of VTE risk assessment, awareness rate of health education among patients, implementation rate of physical preventive measures and qualified rate of VTE-related knowledge and skills among nurses increased from 82.43% (61/74) ,74.32% (55/74) ,83.78% (62/74) ,77.03% (57/74) to 97.85% (91/93) ,91.40% (85/93) ,97.85% (91/93) ,96.77% (90/93) respectively (χ²= 8.86-15.24, all P < 0.01) . Conclusion The integration of best evidence standardize nurses′ behaviors, reduce the incidence rate of VTE, improve the quality of clinical care and promote the satisfaction of patients continuously.

Objective? To explore the establishment and effects of preventive nursing sensitivity indicators for venous thromboembolism (VTE) in orthopedic patients. Methods? Preventive nursing sensitivity indicators for VTE in orthopedic patients were established using Delphi expert consultation method. Totally 160 patients before the preventive nursing sensitivity indicators for VTE were carried out (May 2017) were selected as the control group, while another 201 patients after the indicators were carried out (November 2017) were selected as the study group. Patients in the control group received conventional preventive nursing care for VTE, whereas patients in the study group received monitoring and management using the self-developed preventive nursing sensitivity indicators for VTE. Patients' incidence rate of VTE, satisfaction with VTE prevention, accuracy of VTE risk assessment, awareness rate of health education knowledge, implementation rate of physical prevention measures, achievement rate of nurses' VTE-associated knowledge and skills before and after the indicators were carried out. Results? Patients' incidence rate of VTE was 25‰ before the indicators were carried out, while that after the indicators were carried out was 5‰ (P=0.175); patients' satisfaction before the indicators were carried out was 78.12%, while that after the indicators were carried out was 93.53% (χ2=18.344, P＜0.001); and there were statistically significant differences in accuracy of VTE risk assessment, awareness rate of health education knowledge, implementation rate of physical prevention measures and achievement rate of nurses' VTE-associated knowledge and skills before and after the indicators were carried out (P＜ 0.01). Conclusions? The establishment and application of preventive nursing sensitivity indicators for VTE can effectively improve the nursing quality of VTE prevention as well as patient's satisfaction.