Objective To analyze the research hotspots and development in the field of post-stroke pneumonia over the past decade. Methods The English literature on post-stroke pneumonia in the Web of Science Core Collection database from January,2014 to June,2024 was retrieved,and analyzed using CiteSpace 6.3.R1 software. Results A total of 1 681 papers were included.The number of publications gradually increased from 2014 to 2021,and decreased from 2022 to 2024,but still more than 2014 overall.The United States and China were the countries with the highest number of publications,and most of the institutions with a high number of publications were uni-versities,while independent collaborative networks were found among the authors.Hot keywords included dys-phagia,management and venous thromboembolism,etc.;and the bursting words appeared within the last three years were scale score and mechanical thrombectomy. Conclusion The researches related to post-stroke pneumonia present an inverted U-shape in the past ten years.The rela-tionship and risk management of post-stroke pneumonia with dysphagia and venous thromboembolism are the main hotspots in the researches.The studies may tend to explore the sensitivity of the integration scale for post-stroke pneumonia and the control of risk factors during mechanical thrombectomy.

Objective:To compare the effects of "Rain Classroom" teaching model and traditional teaching model in the Pharmacology teaching for MBBS international students.Methods:A total of 55 MBBS international students of the Batch 2016 were selected, and randomly divided into the "Rain Classroom" teaching group ( n = 27, experimental group) and the traditional teaching group ( n = 28, control group) according to their academic performance, age, gender, learning attitude, learning ability, and their original country. The experimental group took "Rain Classroom" assisted teaching, and control group took traditional teaching.The teachers for two groups were the same. They have been engaged in the "Pharmacology" course for international students for many years. The chapter "Antihypertensives" in textbook " Lippincott's Illustrated Reviews, Pharmacology (edited by Karen Whalen)" was selected as teaching content. The teaching effects were evaluated by the knowledge assessment (70 points) and process evaluation (30 points). A questionnaire survey was conducted at the end of the course. The results were statistically analyzed by t-test and Chi-square test using SPSS 11.5 software. Results:Compared with the traditional teaching group, the students of "Rain Classroom" group obtained a significantly higher score in exam. The average exam score of the "Rain Classroom" group was (58.6±6.8) points, while the average exam score of the traditional teaching group was (52.3±9.4) points, indicating a better mastery of knowledge for "Rain Classroom" group ( P < 0.05). The process evaluation showed that the students in the "Rain Classroom" group were more active in participation and the interaction, which was significantly higher than that in the traditional teaching group (7.4 vs. 2.8 times per students). No obvious difference was observed in students' attendance and homework scores for these two groups. According to the questionnaire survey, the "Rain Classroom" group enhanced students' interest in learning, improved the concentration in classes, and thus promoted the mastery of knowledge. Conclusion:The present study has confirmed the "Rain Classroom" teaching method is conducive to mobilizing students' enthusiasm for learning and improving teaching effect.

Objective:To investigate the curative effects of Shugan Hewei Zhitong Recipe on chronic gastritis complicated by Helicobacter pylori infection. Methods:Eighty-seven patients with chronic gastritis complicated by Helicobacter pylori infection who received treatment in the Huguosi Hospital of Traditional Chinese Medicine, Beijing University of Chinese Medicine, China from July 2018 to June 2020 were included in this study. They were randomly assigned to undergo treatment with either conventional Western medicine ( n = 43, control group) or Shugan Hewei Zhitong Recipe based on conventional Western medicine ( n = 44, observation group) for 2 weeks. Before and after treatment, traditional Chinese medicine syndrome scores were compared between the two groups. Curative effects of Shugan Hewei Zhitong Recipe on chronic gastritis complicated by Helicobacter pylori infection were evaluated. Results:Total response rate in the observation group was significantly higher than that in the control group [91% (40/44) vs. 72% (31/43), χ2 = 5.13, P = 0.024]. In each group, the traditional Chinese medicine symptom score post-treatment was significantly lower than the traditional Chinese medicine symptom score pre-treatment (both P < 0.001). After treatment, the traditional Chinese medicine score of the observation group was significantly lower than that of the control group ( P < 0.05). There were no adverse reactions in each group. Conclusion:Shugan Hewei Zhitong Recipe is safe and effective on chronic gastritis complicated by Helicobacter pylori infection, which is worthy of clinical promotion.

Objective:To automatically synthesize Al 18F-1, 4, 7-triazacyclononane-1, 4, 7-triacetic acid (NOTA)-fibroblast activation protein inhibitor (FAPI)-04, perform PET/CT imaging in vivo, and evaluate its diagnostic efficacy on tumors. Methods:Al 18F-NOTA-FAPI-04 was produced in All-in-one automatic synthesis module and its quality control was conducted by high performance liquid chromatography (HPLC) equipped with a radioactive detector. Al 18F-NOTA-FAPI-04 PET/CT imaging was performed in normal BALB/c mice ( n=3) and 4T1 breast cancer models ( n=3) to determine its biodistribution. Then Al 18F-NOTA-FAPI-04 and 18F-FDG PET/CT imaging were performed in a hepatocellular carcinoma patient (male, 51 years old). Results:The synthesis time of Al 18F-NOTA-FAPI-04 was about 35 min, and the radiochemical yield was (25.2±1.9)% (attenuation correction, n=3). The product was colorless transparent solution with pH value of 7.0-7.5, and the specific activity was (46.11±3.07) GBq/μmol (attenuation correction, n=3). The radiochemical purity was above 99.0% and was still above 98.0% at room temperature after 6 h. PET/CT imaging in mice showed that physiological uptake of Al 18F-NOTA-FAPI-04 was mainly in biliary system and bladder, and Al 18F-NOTA-FAPI-04 highly concentrated in tumor xenografts. PET/CT imaging in the patient showed that Al 18F-NOTA-FAPI-04 obtained high tumor background ratio (TBR) values of 4.1, 8.9, 5.4, 4.8, 2.2 in parasternal lymph nodes, anterior diaphragmatic lymph nodes, hilar lymph nodes, pancreaticoduodenal ligament lymph nodes, abdominal aortic lymph nodes, respectively, while TBR values were 1.0, 2.8, 5.0, 2.1, 1.1 by 18F-FDG. Conclusions:Al 18F-NOTA-FAPI-04 can be synthesized with short time, high radiochemical yield and good stability using All-in-one module. Al 18F-NOTA-FAPI-04 PET/CT imaging has high contrast and excellent diagnostic efficacy on tumors.

Platelet lineage suggests that it plays a crucial role in immune responses. In recent years, many studies have found that platelet activation is closely related to the activity of inflammatory bowel disease. Activated platelets can release inflammatory mediators, and express surface molecules that mediate inflammation, interact with leukocytes and vascular endothelial cells. It provides a theoretical basis for antiplatelet drugs to treat the inflammatory bowel disease.
Blood Platelets ; Endothelial Cells ; Humans ; Inflammatory Bowel Diseases ; Platelet Activation ; Platelet Aggregation Inhibitors

With the rapid development of modern biotechnology, fermentation process is increasingly important in industrial production. To guarantee the stability of products, fermentation process should be elaborately monitored and controlled. Biomass is an important parameter for on-line monitoring in bioprocesses because biomass can reflect cell growth in a bioreactor directly. In-situ microscope, a non-invasive and image-analysis based technology, can real-time monitor cells in biological process. This review summarizes the development and application of in-situ microscopy in biomass monitoring.
Biomass ; Bioreactors ; Biotechnology ; Fermentation ; Microscopy

Objective To measure the number of lymphocytes, B lymphocytes, CD5+B lymphocytes and level of IL-10 in peripheral blood of patients with systemic lupus erythematosus (SLE), and analyze their effects in the disease. Methods In this study, 84 cases of patients with SLE were randomly selected and evaluated according to the activity index (SLEDAI). These cases were divided into low activity group (SLEDAI<9) and high activity group (SLEDAI≥9). Ten healthy individuals were selected as the control group at the same time. The number of peripheral blood lymphocytes, B lymphocytes, CD5 + B lymphocytes, erythrocyte sedimentation rate (ESR), C3, C4 and interleukin (IL)-10 levels in serum were measured respectively and the correlation between the above indexes and SLEDAI and complement levels were analyzed. Pair-wise comparison of means of groups was conducted with one-way ANOVA. Comparison between the two groups was conducted by LSD-t test. Correlations between variables were carried out using Spearman's rank correlation test. Results The total number of lymphocytes in SLE group was lower than that in normal control group ( F=7.216, P<0.001); The number of CD19+ B lymphocytes in SLE group was higher than that in normal control group (F=3.589, P=0.036). The number of CD5+B lymphocytes of peripheral blood [(2.5±0.6)%] in patients with systemic lupus erythematosus was significantly lower than that in the normal control group [(3.2 ±0.8)%], but the difference was not statistically significant (t=3.412, P=0.698). The number of CD5+B lymphocytes in the high activity group was significantly lower than that in the low activity group (t=7.365, P=0.027)and the normal control group (t=5.649, P=0.002). The number of CD5+ B lymphocytes was negatively correlated with SLEDAI score (r=-0.692, P=0.001) and positively associated with the level of complement 3 (r=0.305, P=0.038), but not with complement 4 and ESR (P>0.05). In addition, the level of serum IL-10 in whether the low activity group (t=1.935, P=0.031) or the high activity group (t=3.048, P=0.012) was all higher than the normal control group. The level of serum IL-10 in patients with systemic lupus erythematosus was positively associated with SLEDAI score (r=0.425, P=0.024) and ESR (r=0.479, P=0.008), but was negatively correlated with complement 4 (r=-0.359, P=0.031). Conclusion The total number of lymphocytes in patients with SLE decreases significantly, while B lymphocytes increases significantly. The number of CD5+ B lymphocytes and the serum IL-10 level are also changed. It maybe related to the patient's inflammatory environment, and the number of CD5+B lymphocytes and the serum IL-10 level may be associated with disease activity.

OBJECTIVE To examine the reversal effect of desipramine (DMI) on resistance to temozolomide(TMZ) in U251/TR cells and explore its mechanism. METHODS U251/TR cells were exposed to DMI (20-80μmol · L-1) or TMZ (0.5-10 mmol · L-1) for 24 h, cell viability was determined by cell counting kit-8 assay with IC50 calculated. The cytotoxicity of U251/TR cells treated with TMZ (1 or 2 mmol·L-1) in combination with DMI (20, 30 or 40 μmol · L-1) for 24 h was detected using CCK-8 assay. Synergism between DMI and TMZ was analyzed by the JIN Zheng-jun method. Apoptosis of U251/TR cells induced by TMZ 1 mmol · L-1, DMI 30 μmol · L-1,or their combination was examined by Hoechst33258 stains and caspase 3 activity was detected by luminescence analysis. Expression of C/EBP homologous protein (CHOP) was measured using quantitative real-time PCR and Western blotting. The survival rate of U251/TR cells treated with TMZ 1 mmol·L-1 and/or DMI 30μmol·L-1 was also assessed after silencing CHOP expression by small interference RNA (siRNA). RESULTS DMI or TMZ alone inhibited the growth of U251/TR cells significantly in a concentration-dependent manner (r 2=0.983,0.982,P<0.05), with the IC50 (33.6 ± 0.5)μmol · L-1 and (2.5 ± 0.6)mmol · L-1, respectively. The cell viability inhibitory rate of U251/TR cells by TMZ (1 or 2 mmol · L-1) combined with DMI (20, 30, or 40μmol · L-1) was greater than that by TMZ or DMI alone (P<0.05). The JIN Zheng-jun analysis revealed that combination of DMI and TMZ produced synergistic cytotoxicity (Q>1.15), ie, compared with TMZ alone, TMZ (1 mmol·L-1) com?bined with DMI (30 μmol · L-1) produced significant nuclear fragmentation and condensation (P< 0.05). In addition, DMI and TMZ in combination activated caspase 3 activity in U251/TR cells (P<0.05). Knock?down of CHOP by specific siRNA attenuated the synergistic effect of DMI in the presence of TMZ, the survival rate of the combined drug group raised from 51.8%to 62.2%(P<0.05). CONCLUSION The results suggest that DMI reverse resistance of U251/TR cells to TMZ through activation of the CHOP-depend?ently apoptosis pathway.

Objective To improve the understanding of cutaneous Mycobacterium haemophilum infection.Methods Clinical and laboratory data were collected from two patients with cutaneous Mycobacterium haemophilum infection.The clinical and histopathologic manifestations, etiology and treatment of cutaneous Mycobacterium haemophilum infection were analyzed.Results The two patients were both immunocompromised.Lesions, which occurred after trauma in both the patients, began as well-marginated subcutaneous nodules, and then gradually progressed into ulceration with crusting and abscess formation.Histopathological examination revealed epithelial cell granuloma or histiocytic infiltrate in the dermis, as well as focal necrosis and neutrophil abscesses.Acid-fast staining showed abundant bacilli in tissues.These bacilli only grew in iron-containing medium, and were finally identified as Mycobacterium haemophilum by PCR and sequencing.According to the result of antimicrobial sensitivity testing, both the patients were treated with rifampicin, clarithromycin and moxifloxacin.Three months later, the condition was improved in both of them.Conclusions Mycobacterium haemophilum infection occurs most frequently in immunocompromised populations after trauma, manifests as subcutaneous nodules and abscesses with histopathological changes consistent with infectious granuloma.Molecular biological approaches are reliable for the identification of Mycobacterium haemophilum.

Objective To analyze the clinical characteristics, mycology and therapeutics of 5 cases of cutaneous zygomycosis collected in recent 3 years. Methods A retrospective study was performed using clinical data on 5 cases of cutaneous zygomycosis collected in recent 3 years. Also, previous reports of this entity were reviewed. Results There were 1 male and 4 females among the 5 patients with cutaneous zygo-mycosis confirmed by mycology and/or pathology. The onset of age varied from 5 to 49 years, and course of disease from 7 months to 16 years. Of the 5 patients, 1 presented with superficial cutaneous zygomycosis, and the other 4 with gangrenous cutaneous zygomycosis; 3 had a history of trauma or surgery, 2 had no obvious inducements. Eruptions were located in the face of 2 patients and in the extremities of 3 patients. The isolate was identified as Rhizomucor variabilis in 3 cases, and species remained unclear in 2 cases. Four patients were treated by amphotericin B, and 1 by oral flueonazole as well as oral and injected itraconazole. Finally, 2 patients were healed, 1 was improved, 1 experienced no obvious improvement, and 1 died. Con-clusions Cutaneous zygomycosis is a rare severe devastating deep fungal infection. The first choice of drug is amphoteracin B for it. To improve the understanding of this disease may benefit the early diagnosis and therapy of it.