To investigate the clinical utilization of Rituximab biosimilar (Rituximab injection) in order to provide references for evaluating its rationality and economic value in clinical application.

Objective:To explore the effects of home hospice care team service model in patients with end-stage malignant tumors and main caregivers, so as to provide intervention programs for improving the quality of life of patients with end-stage malignant tumors.Methods:In the prospective and controlled study, 106 patients with malignant tumors who received end-stage hospice care in Yuebei People′s Hospital and main caregivers from May 2021 to July 2021 were selected by convenience sampling method, and divided into trial group (53 pairs) and control group (53 pairs) according to the random number table method. The control group was treated with routine nursing intervention, and the trial group was given home hospice care team service model intervention based on the control group. The occurrence of falls and negative emotions and quality of life of patients, psychological stress of primary caregivers before and after intervention were observed by using Self-rating Anxiety Scale (SAS), Self-rating Depression Scale (SDS), Relative Stress Scale (RSS) and European Organization for Research and Treatment of Cancer Quality of Life Scale (EORTC QLQ-C30).Results:Finally, 103 patients and main caregivers completed the study, with 52 pairs in the control group and 51 pairs in the trial group. In the control group, the patients were 29 males and 23 females, aged (54.33 ± 12.24) years old,and the main caregivers were 22 males and 30 females, aged (41.67 ± 8.14) years old. In the trial group,the patients were 27 males and 24 females,aged (55.17 ± 10.56) years old,and the main caregivers were 24 males and 27 females, aged (43.62 ± 7.39) years old. After intervention, the total incidence of falls and the total incidence of fall complications in the trial group were 7.84% (4/51) and 1.96% (1/51), respectively, which were lower than 25.00% (13/52) and 11.54% (7/52) in the control group, the differences were statistically significant ( χ2=5.50, 4.75, both P<0.05). There was no significant difference in the score of SAS, SDS, RSS, EORTC QLQ-C30 before intervention between the two groups (all P>0.05). After intervention, the scores of SAS and SDS in trial group were (32.66 ± 3.18), (31.19 ± 4.50) points,which lower than those in control group (34.54 ± 3.91), (34.31 ± 4.03) points, the differences were statistically significant ( t=2.67, 2.51, both P<0.05). After intervention, the RSS scores of psychological distress, life disruption, negative emotion and total score of the main caregivers in trial group were (3.52 ± 0.48), (3.66 ±0.56), (3.47 ± 0.82), (10.65 ± 0.67) points, which were lower than those in the control group (4.74 ± 2.75), (4.67 ± 2.64), (4.12 ± 2.13), (13.53 ± 2.26) points, the differences were statistically significant ( t values were 2.04-8.73, all P<0.05). After intervention, the EORTC QLQ-C30 score in the trial group was (74.14 ± 5.64) points, which was lower than that in the control group (70.54 ± 7.07) points, the difference was statistically significant ( t=2.85, P<0.05). Conclusions:The application of home hospice care team service model can effectively reduce the risk of falls in patients with malignant tumor chemotherapy, improve the negative emotions of patients and the psychological stress state of their main caregivers, and improve the quality of life of patients.

Polymer nanoparticles generally refer to hydrophobic polymers-based nanoparticles, which have been extensively studied in the nanomedicine field due to their good biocompatibility, efficient long-circulation characteristics, and superior metabolic discharge patterns over other nanoparticles. Existing studies have proved that polymer nanoparticles possess unique advantages in the diagnosis and treatment of cardiovascular diseases, and have been transformed from basic researches to clinical applications, especially in the diagnosis and treatment of atherosclerosis (AS). However, the inflammatory reaction induced by polymer nanoparticles would induce the formation of foam cells and autophagy of macrophages. In addition, the variations in the mechanical microenvironment of cardiovascular diseases may cause the enrichment of polymer nanoparticles. These could possibly promote the occurrence and development of AS. Herein, this review summarized the recent application of polymer nanoparticles in the diagnosis and treatment of AS, as well as the relationship between polymer nanoparticles and AS and the associated mechanism, with the aim to facilitate the development of novel nanodrugs for the treatment of AS.
Humans ; Polymers/chemistry* ; Cardiovascular Diseases ; Nanoparticles/chemistry* ; Drug Delivery Systems ; Atherosclerosis/pathology*

Adenosine 5'-monophosphate-activated protein activated protein kinase (AMPK), a heterotrimeric complex, is an important kinase to regulate glycolipid metabolism and energy balance involved in a variety physiological processes in human body. Many research indicated that the function and activity of AMPK were closely related to inflammation, diabetes and cancers. Recent reports show that inhibition of metformin (a first-line drug) on hepatic glucose in patients with hyperglycemia is associated with AMPK pathway, suggesting that targeting AMPK may be one of the effective strategies for the prevention and treatment of a variety of chronic diseases. Here, we review research progress on the structure, activation and regulation of AMPK in glycolipid metabolism to provide an insight into the basic and clinical research of diabetes therapy.
AMP-Activated Protein Kinases ; Adenosine ; Adenosine Monophosphate ; Energy Metabolism ; Enzyme Activation ; Glycolipids ; Humans

To evaluated the inhibition effect of local injection of odanacatib on orthodontic relapse.Thirty rats were randomly divided into 2 groups(n =15).The maxillary right first molars of all animals were subjected to orthodontic force and moved mesially.Three weeks later,the force was removed,and the teeth relapsed.The rats of experimental group were received local injections of odanacatib.The control group received saline instead.Tooth movement and relapse were measured when appliances removed after 0 day and 2 weeks.The rats were sacrificed after the 2-week relapse.The microcomputed tomography analysis was performed to quantify the alveolar bone,and the values of bone mineral density(BMD) and bone volume fraction(BVF) were measured.The percentage of relapse in the experimental group was significantly lower than that in the control group(P ＜0.05),and the BMD and BVF of alveolar bone in the experimental group were significantly higher than those in the control group(P ＜0.05).Local injection of odanacatib effectively inhibit the relapse after orthodontic tooth movement in rats.

Objective:To investigate the effect of Rab7 on cytokine induced by TLR7 (Toll like receptor-7) R848 activated in Raw264.7,and discusses the influence of Rab7 on MAPK signal transduction.Methods: TLR7 downstream cytokines such as TNF-α,IL-6,IFN-α,IFN-β and IP-10 activated by R848 were detected through Q-PCR in Rab7 silenced mouse macrophages,and then analysis of phosphorylation of MAPK determined with Western blot showed the effect of Rab7 on signal transduction of MAPK.Results: Rab7 inhibit production of cytokine activated by TLR7,and also,Rab7 had an inhibitory effect on MAPK signal pathway.Conclusion: The experimental results further illustrate that the Rab7 is the TLR7 signal transduction pathway negative regulatory factor,and to participate in MAPK signaling pathway.

Objective:To explore the inhibitory effects of seabuckthorn polysaccharide on hepatic oxidative stress in a mice model of acute liver injury induced by intraperitoneal injection of LPS and D -GalN and detect the expression on hepatic BCL-2/Bax and PPAR-γ.Methods: C57BL/6 male mice were randomly divided into six groups:control group ( CTRL), model group ( L/G), dexamethasone positive control group ( DXM ) , low ( SPL ) , medium ( SPM ) and high dose group ( SPH ) of seabuckthorn polysaccharide.Mice in the SPL,SPM and SPH group were gavaged with 50,100 and 200 mg/kg seabuckthorn polysaccharide for 14 days respectively.Acute liver injury model were established by intraperitoneal injection of LPS (10 μg/kg) and D-GalN (700 mg/kg) .Serum and liver samples were collected 4 h after model establishment .Serum levels of ALT and AST and the content of MDA were de-tected.Hepatic expression of SOD 2 BCL-2 and Bax was determined by Western blot and the expression of PPAR-γwas detected by im-munohistochemistry .Results:ALT and AST levels significantly increased in the model group and decreased dose-dependently after pre-treatment with seabuckthorn polysaccharide .The level of MDA in the model group increased significantly as compared with the control group and decreased in seabuckthorn polysaccharide groups ,while the level of SOD 2 decreased in the model group and recovered in sea-buckthorn polysaccharide groups .The expression of Bax decreased after pretreatment with seabuckthorn polysaccharide .There was no obvious effect on BCL-2 expression after sea buckthorn polysaccharide supplementation .The expression of PPAR-γreduced in the sea-buckthorn polysaccharide group as compared with the model group .Conclusion:Seabuckthorn polysaccharide protects against LPS /D-GalN-induced liver injury.The effect is associated with an upregulation of SOD 2 and downregulation of Bax .

Objective:Using the macrophage cell lines RAW264.7 stably expressing Rab5a and its dominant negative mutant Rab5aN133I as models to analyze the effect and the mechanism of Rab 5a,Rab5aN133I on CpG-induced production of pro-inflammatory cytokines and type Ⅰ IFN.Methods: The eukaryotic expression vectors of Rab5a and Rab5aN133I were transfected into RAW264.7 cells by liposome,and screened with G418.The G418-resistant colonies were obtained and amplified.The transformed cell lines were i-dentified by RT-PCR,Real time-PCR and Western blot.The production of cytokines were measured after transformed cell lines of Rab5a and Rab5aN133I was stimulation with CpG for 8 h.Results: Rab5a expression in transfected cells was significantly higher than the control cell group (P<0.05).Overexpression of Rab5a significantly promoted the production of TNF -α,IL1-β(P<0.01) and IFN-β( P<0.05) in CpG stimulated RAW264.7.The production of cytokines was restored in Rab 5aN133I transfected cell line.Conclusion:Rab 5a promotes CpG-induced pro-inflammatory cytokines and typeⅠIFN in macrophages,it may be act as a positive regulator in TLR9 signaling pathway.

BACKGROUND:Low power microwave irradiation has been shown to promote the healing of fractures with internal fixation;however, its action mechanisms on the skeletal muscle around the fracture site are unclear. OBJECTIVE:To study the effects of low power microwave irradiation (20 W) on the proliferation ability of skeletal muscle satel ite cel s in a rabbit model of femoral fracture with internal fixation. METHODS:Forty male New Zealand rabbits were used to establish femoral fracture fol owed by internal fixation models, and then were equal y randomized into spontaneous recovery and microwave treatment groups. Low power microwave irradiation (20 W) was given for 30 consecutive days in the microwave treatment group on day 4 after modeling, while no microwave irradiation was given in the spontaneous recovery group. Rabbit thigh muscles adjacent to the implant were obtained to isolate skeletal muscle satel ite cel s. Immunohistochemical staining, hematoxylin-eosin staining and quantitative RT-PCR were used to evaluate the ability of the proliferation and differentiation of skeletal muscle satel ite cel s. RESULTS AND CONCLUSON:Hematoxylin-eosin staining showed that there was no significant difference in the morphology and histology of skeletal muscle tissues between the spontaneous recovery and microwave treatment groups. However, the relative mRNA expression of MyoG in the cultured skeletal muscle satel ite cel s in vitro and the number ofα-sarcometric actin-postive cel s in the microwave treatment group were significantly increased compared with the spontaneous recovery group (P<0.05). The proliferative ability of skeletal muscle satel ite cel s was inhibited at the early stage, but not at the later stage. Our results suggest that low power microwave irradiation (20 W) can promote the proliferation and differentiation of skeletal muscle satel ite cel s around the implant in a rabbit model of femoral fracture with internal fixation, and thereby confirm the efficacy and safety of low power microwave irradiation for the internal fixation of fractures.

Objective To investigate the distribution of pathogens isolated from lower respiratory tract sputum samples of trach‐eotomy patients who suffered from severe craniocerebral injury and nurses′hands surface samples ,and analyze the correlation be‐tween them .Methods Lower respiratory tract sputum samples of 97 tracheotomy patients suffered from severe craniocerebral inju‐ry and hands surface samples from nurses who just washed their hands after the sample collection were collected .Then the samples were sent to the microbiological lab for pathogen isolation and identification ,the results were statistically analyzed by using WHO‐NET5.4software.Results 388sampleswerecollectedaltogether,including194sputumsamplesand194nurses′handssurface samples .633 pathogens were isolated altogether ,including 452 strains of G- bacteria (71 .41% ) ,134 strains of G+ bacteria (21 .17% ) and 47 strains of fungi(7 .42% ) .The top five species of G- bacteria which took the largest proportion and caused the lower respiratory tract infection were Peudomonas aeruginosa(12 .16% ) ,Acinetobacter baumannii(9 .63% ) ,Klebsiella pneumoniae bacteria(7 .10% ) ,Stenotrophomonas maltophilia(5 .21% ) ,Escherichia coli(4 .89% );the primary species of G+ bacteria were coag‐ulase negative staphylococcus(6 .79% ) ,Staphylococcus aureus(2 .36% );the primary fungus was Monilia albicans(4 .24% ) .The top five G- bacteria species which took the largest proportion and isolated from hands surface samples were Pseudomonas aeruginosa (6 .79% ) ,Acinetobacter baumannii(5 .84% ) ,Escherichia coli(4 .91% ) ,Klebsiella pneumoniae(3 .94% ) ,Stenotrophomonas malto‐philia(3 .79% );the primary species of G+ bacteria were coagulase negative staphylococcus (9 .63% ) ,Staphylococcus aureus (2 .36% ) .The primary fungus was Monilia albicans(3 .00% ) .Conclusion Tracheotomy patients who suffered from severe cranio‐cerebral injury with lower respiratory infection are very possible to have cross‐infection ,sanitary management of nurses′hands asep‐tic manipulation procedures should be strengthened .