Objective To observe the protective effect of rhein-arginine (RhA) on rats ankylenteron and to explore the anti-inflammatory mechanism. Methods Sixty male SD rats were randomly divided into 6 groups:normal control group,model group,dexamethasone group (in the dose of 10 mg?kg-1) and low-,medium-and high-dose RhA groups (in the dose of 7.5 mg?kg-1,15 mg?kg-1,30 mg?kg-1 respectively). Except that the normal control group,the rats in other groups were induced ankylenteron. Intraperitoneal injection of saline was administered to the rats in the normal control group and the model group,and dexamethasone group and RhA groups were given the corresponding drugs according to the experimental design. The treatment lasted 7 days. On the 8th day after surgery the blood samples of each group were collected. The levels of interleukin-1?(IL-1?),interleukin-4(IL-4)and tumor necrosis factor-?(TNF-a)were determined by enzyme linked immunosorbent assay. Grades of ntestinal adhesion were ranked by macroscopic observation. The adhesive tissues between cecum and abdominal wall were taken for pathological observation and the determination of hydroxyproline (Hyp) content. Results RhA significantly relieved the experimental intestinal adhesion,Obviously decreased the levels of IL-1?and TNF-?,and inhibited the hyperplasia of fibrous connective tissue. However,there was no significant impact on the level of IL-4. Conclusion RhA can effectively prevent the information of postoperative ankylenteron by inhibiting the expression of inflammatory cytokines and reducing the inflammatory response.

Objective To explore effects of parents exposure to TBT on blood routine of F1 generation mice. Methods 80 mice including 40 males and 40 females, were randomly divided into control groups (CK) , low dose groups (LTBT), middle dose groups (MTBT) and high dose groups (HTBT).They were given dose of TBT (0,0.2,2, 20μg/kg) every day.The experiment lasted 45 days.At 60 days, one female and one male of the same concentration were bred in the same cage according to 1∶1.At postnatal day 60, blood was collected for the determination of blood routine. Results Compared with control group, the number of red blood cells and hemoglobin of F1 generation male mice in LTBT and HTBT groups were significantly increased (P <0.01); Red blood cell volume, mean corpuscular hemoglobin (P <0.01), and the lymphocyte absolute value in F1 generation male LTBT were significantly reduced (P <0.05); HTBT of female mice were significantly increased about the number of red blood cells (P <0.01).A dose-dependent increase of the hemoglobin, red blood cells, and platelet count of F1 generation female experimental groups was observed.Conclusion Parental TBT exposure affects the F1 mice blood routine.There is the greatest influence on LTBT in F1 generation male mice and on HTBT in F1 generation female mice.

Objective:To evaluate and compare electroacupunctures (EA) with different parameters and moxibustion at different temperatures influencing the activation of mast cells (MC) in Tianshu (ST 25) regions of visceral hyperalgesia model rats. Methods:Rats (except for model group) respectively accepted 1 mA or 3 mA EA or moxibustion at 43 or 4 to℃℃stimulate Tianshu (ST 25) points after randomization of the fifty visceral hyperalgesia model rats, and then were compared with that in model and normal groups. Number, degranulation numbers, degranulation rates in Tianshu (ST 25) regions MC of rats in each group were observed using toluidine blue staining. Abdominal withdrawl reflex (AWR) score was used to evaluate the rat visceral hyperalgesia reactions. Results:Compared with the normal group and the model group, MC numbers (P<0.05,P<0.01,P<0.01,P<0.01), degranulation numbers and degranulation rates (P<0.01,P<0.01, P<0.05,P<0.01) of Tianshu (ST 25) MC in regions tissues in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups all increased significantly. Compared with the model group, AWR scores were significantly lower in 43℃ and 4℃ moxibustion groups, and 1 mA and 3 mAEA groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg colorectal distension (CRD) (P<0.05 in 1 mA and 3 mA EA groups under the stimulation of 20 mmHg,P<0.01 in the other groups). AWR scores in 43℃ and 4℃moxibustion groups under the stimulation of 20 mmHg, 40 mmHg, 0 mmHg or 80 mmHg CRD were not significantly different from those in the normal group (allP>0.05); AWR scores in 1 mA EA group under the stimulation of 0 mmHg or 80 mmHg were significantly higher than that in the normal group (P<0.01); AWR score in 3 mA EA group under the stimulation of 0 mmHg was significantly higher than that in the normal group (P<0.01), and AWR scores in 3 mA EA group under the stimulation of 20 mmHg or 80 mmHg were also higher than that in the normal group (P<0.05). AWR scores were higher in 1 mA EA group under the stimulation of 40 mmHg or 80 mmHg than that in 4℃ moxibustion group (P<0.05); AWR score was higher in 3 mA EA group under the stimulation of 40 mmHg than that in 4℃ moxibustion group (P<0.05). Conclusion:There are differences among EA of different parameters and moxibustion of different temperatures in activating on Tianshu (ST 25) regions MC of visceral hyperalgesia model rats, as well as in improving the visceral hyperalgesia reaction. The effect of 4℃ moxibustion is the most significant.

Using atomic force microscope (AFM), we investigated the images of Pars influenza virus (PIV) under different treatment conditions and observed the different appearances of the virus and its ultra-microstructure from the exterior to the interior. From the 2D images under transmission electron microscope (TEM), we could see that the surfaces of PIV particles exhibited spherical and band-shaped 'tufts'; from the 3D images under AFM, we could further observe the whole spherical virus particles and their detailed surfaces, which exhibited round and band-shaped 'tufts'. Comparing the images under TEM with those under AFM, we found that the latter could reveal the surface topograph and ultramicrostructure of viruses more truly than did the former. The samples of viruses were treated by Tritonx-100, the lipid envelopes of virions were partly or completely resolved, and then most of their capsids were exposed. We could observe the different appearances of the virions under AFM, the lipid envelopes of which were gradually removed. The samples of viruses were also treated by SDS, and the RNA was released from the virions. From the AFM images, we could see the structure of the RNA. It was thus clear that AFM could be used to investigate the different appearances and ultramicrostructure of viruses rapidly and efficiently.
Microscopy, Atomic Force ; Parainfluenza Virus 1, Human ; ultrastructure ; Parainfluenza Virus 2, Human ; ultrastructure

OBJECTIVETo observe the inhibitory effect of citrus extract nobiletin on K562 cells xenograft in nude mice and discuss its anticancer activity and mechanism.

METHODThe model of K562 cells xenograft was established in nude mice. Twenty-five nude mice were divided to five groups. After 24 hrs of inoculation with K562 tumor cells subcutaneously, 1% CMC-Na in the nude mice of model control group, nobiletin (12.5, 25, 50 mg x kg(-1)) in the nude mice of nobiletin groups and CTX (20 mg x kg(-1)) in positive control group were administered once every day. The nude mice were killed at 18th day-point of administration. The inhibitory rate of nobiletin on tumor was calculated according to the measured tumor weight. Immunohistochemistry assay was used to determine the effect of nobiletin on VEGF expression and MVD, and CAM assay was used to detect the effect of nobiletin on vessel regeneration.

RESULTNobiletin have notable inhibition on K562 cells xenograft in nude mice comparing with model control group (P < 0.01), the inhibitory rate of nobiletin groups were 36% -58%. The results of immunohistochemical technology showed that the expression of VEGF in nobiletin groups decreased significantly comparing with the model control group (P < 0.05, P < 0.01, P < 0.01). Nobiletin could remarkably decrease the angiogenesis within tumor tissues. The expression of CD34 in nobiletin low dose group and high dose group was lower than that in model control group (P < 0.05, P < 0.01). The result of CAM indicated that 4 microg and 2 microg nobiletin could inhibit the new blood vessels of CAM (P < 0.01).

CONCLUSIONNobiletin inhibited the tumor growth and angiogenesis by reducing the VEGF expression of K562 cells xenograft in nude mice.

Angiogenesis Inhibitors ; pharmacology ; Animals ; Antineoplastic Agents ; pharmacology ; Citrus ; chemistry ; Disease Models, Animal ; Flavones ; pharmacology ; Gene Expression Regulation, Neoplastic ; drug effects ; Humans ; K562 Cells ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Neoplasm Transplantation ; Neoplasms ; drug therapy ; genetics ; metabolism ; Transplantation, Heterologous ; Vascular Endothelial Growth Factors ; genetics ; metabolism

Background: At the therapeutic doses, diclofenac sodium (DFS) has few toxic side effects on mammals. On the other hand, DFS exhibits potent toxicity against birds and the mechanisms remain ambiguous. Objectives: This paper was designed to probe the toxicity of DFS exposure on the hepatic proteome of broiler chickens. Methods: Twenty 30-day-old broiler chickens were randomized evenly into two groups (n = 10).DFS was administered orally at 10 mg/kg body weight in group A, while the chickens in group B were perfused with saline as a control. Histopathological observations, serum biochemical examinations, and quantitative real-time polymerase chain reaction were performed to assess the liver injury induced by DFS. Proteomics analysis of the liver samples was conducted using isobaric tags for relative and absolute quantification (iTRAQ) technology. Results: Ultimately, 201 differentially expressed proteins (DEPs) were obtained, of which 47 were up regulated, and 154 were down regulated. The Gene Ontology classification and Kyoto Encyclopedia of Genes and Genomes pathway analysis were conducted to screen target DEPs associated with DFS hepatotoxicity. The regulatory relationships between DEPs and signaling pathways were embodied via a protein-protein interaction network. The results showed that the DEPs enriched in multiple pathways, which might be related to the hepatotoxicity of DFS, were “protein processing in endoplasmic reticulum,” “retinol metabolism,” and “glycine, serine, and threonine metabolism.” Conclusions The hepatotoxicity of DFS on broiler chickens might be achieved by inducing the apoptosis of hepatocytes and affecting the metabolism of retinol and purine. The present study could provide molecular insights into the hepatotoxicity of DFS on broiler chickens.

Objective:To investigate the clinical characteristics of patients with keratoconus, and to explore the factors influencing keratoconus severity.Methods:A cross-sectional study was performed.A total of 908 patients (1 476 eyes) with primary keratoconus were enrolled in Henan Eye Hospital from January 2019 to December 2021.The medical history data of patients were collected by face-to-face questionnaire survey.Refractive parameters were measured by subjective optometry.Intraocular pressure (IOP) was measured by a non-contact tonometer, and corrected IOP was calculated by Dresden formula.Corneal topography parameters was obtained using Pentacam HR.The subgroup analysis of clinical characteristics of all patients was performed by age (<21 years, 21~<31 years, ≥31 years) and gender.Disease severity was graded based on steep keratometry (Ks), namely mild (Ks<48 D), moderate (48 D≤Ks<55 D) and severe (Ks≥55 D). The influencing factors of disease severity in keratoconus were analyzed by ordered Logistic regression.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Henan Eye Hospital (No.HNEECKY-2019[5]). All subjects or guardians were informed of the purpose and significance of the study and written informed consent was obtained.Results:Of the 908 patients, 622 were with bilateral keratoconus and 286 were with unilateral keratoconus.The median age of onset was 20(17, 26) years, and the median age of diagnosis was 21(18, 27) years.The ratio of males to females was 3.05∶1.There were 9.80%(89/908) of the patients having a history of allergy, 25.55%(232/908) having a history of other systemic diseases, and 1.98%(18/908) having a family history of keratoconus.Of the 1 476 affected eyes, 27.57%(407/1 476) were diagnosed as severe keratoconus, and 61.94%(568/917) had a history of eye rubbing.The medians of sphericity, cylindricity, IOP, corrected IOP, Ks, thinnest corneal thickness (TCT), anterior corneal surface elevation (AE) and posterior corneal surface elevation (PE) were -4.00(-7.00, -1.75)D, -3.50(-6.00, -1.50)D, 12.00(10.30, 13.80)mmHg, 15.40(13.60, 17.00)mmHg, 49.85(46.40, 54.90)D, 460.00(425.00, 490.00)μm, 21.00(13.00, 34.75)μm, 51.00(33.00, 75.00)μm, respectively.The spherical refraction, IOP and corrected IOP were lower and the cylindrical refraction was higher in patients at age <21 years than in patients at age 21~<31 years, and the TCT of patients at age <21 years was higher than that at age ≥31 years, and the differences were statistically significant (all at P<0.05). Compared with female patients, male patients had younger onset age, lower spherical refraction, IOP and corrected IOP, as well as higher cylindrical refraction, AE and PE, showing statistically significant differences (all at P<0.05). The spherical refraction and IOP of male patients were lower than those of female patients at age <21 years, and the cylindrical refraction was higher in males than in females among the patients at age 21~<31 years, and the differences were statistically significant (both at P<0.05). Among the patients with onset age <21 years and diagnosis age <21 years, the ratio of males to females in patients with severe keratoconus was higher than those with mild and moderate disease, and the difference was statistically significant (both at P<0.05). Older age of onset was a protective factor for disease severity in keratoconus (odds ratio=0.981, 95% confidence interval: 0.963~0.999). Conclusions:The younger the onset age of keratoconus patients, the more severe the disease.Among the patients with severe keratoconus, there were more male patients, and males have a younger onset age and severer conditions.It is suggested that early screening of keratoconus in children and adolescents should be strengthened in clinical work, and more active prevention and treatment measures should be taken for younger patients, especially males.

Objective : To explore the association of time in range(TIR) and glucose management indicator ( GMI) with the risk of type 2 diabetic nephropathy (DN) ． Methods : The clinical data of 215 patients with type 2 diabetes mellitus (T2DM) were collected and analyzed．According to the results of estimated glomerular filtration rate (eGFR) and urinary albumin to creatinine ratio( UACR) ，they were divided into 117 patients with T2DM and 98 patients with DN．The clinical data，biochemical indicators and continuous glucose monitoring ( CGM) indicators of the two groups were compared．Logistic regression was used to analyze the influencing factors of DN risk．The predictive value of TIR and GMI on the risk of DN was evaluated by receiver operating characteristic (ROC) curve. Results: There were significant differences in age，duration of diabetes，systolic blood pressure，glycosylated hemoglobin ( HbA1c) ，fasting plasma glucose (FPG) ，2 hour postprandial plasma glucose (2hPG) ，creatinine( Cr) ，UACR, eGFR between the two groups(P＜0. 05) ．There were statistically significant differences between the two groups in the CGM indexes of GMI，mean absolute difference of mean of daily differences ( MODD) ，glucose above target range time(TAR) and TIR(P＜0. 05) ．The results of logistic regression analysis showed that TIR was a protective factor of DN．In the ROC curve analysis of TIR prediction DN，the area under the ROC curve was 0. 718 (95% CI = 0. 648 ～0. 789，P＜0. 001) ，and the Yoden index was 0. 38．At this time，the sensitivity was 66. 7% ，and the specificity was 71. 3%．In the ROC curve analysis of GMI prediction DN，the area under the ROC curve was 0. 701 (95% CI = 0. 629 ～0. 774，P＜0. 001) ，and the Yoden index was 0. 368．At this time，the sensitivity was 63. 3% ， and the specificity was 73. 5%． Conclusion Specifically，lower TIR and higher GMI increase the risk of DN.

Objective: He-Wei Granule (HWKL) is a modern product derived from the modified formulation of traditional Chinese medicine Banxia Xiexin Decoction (BXD), which remarkedly enhanced the anti-proliferation activity of cyclophosphamide (CTX) on HepG2 and SGC-7901 cell lines in vitro in our previous research. The aim of the study was to investigate the synergistic effects of HWKL and CTX using a transplanted H22 hepatocellular carcinoma mouse model. Methods: The CTX-toxic-reducing efficacy of HWKL was evaluated by hematology indexes, organ indexes and marrow DNA detection. To investigate the underlying mechanisms, histopathology test, immunohistochemistry test and TUNEL staining were conducted. The efficacy of HWKL on the micro-vessel density (MVD) in tumor tissue was also evaluated by measuring CD34 level. Results: High dose HWKL (6.75 g/kg) markedly attenuated CTX-induced hepatotoxicity and myelosuppression while significantly enhanced CTX anticancer efficacy in vivo. Further mechanism investigation suggested that high dose HWKL significantly increased cleaved Caspase 3 level and promoted apoptosis in tumor tissue by up-regulating Bax expression and down-regulating Bcl-2 and FasL expressions. Compared with CTX alone group, the decrease in LC-3B and Beclin 1 levels suggested that the autophagy in H22 carcinoma was significantly inhibited with addition of high dose HWKL. ELISA assay results indicated that the autophagy inhibition was achieved by decreasing p53 expression, blocking PI3K/AKT/mTOR pathway and recovering Th1/Th2 cytokine balance. In addition, CD34 and EGFR immunohistochemistry assay suggest that high dose HWKL could significantly decrease micro-vessel density (MVD) and inhibit angiogenesis in H22 carcinoma. Conclusion: It can be concluded that high-dose HWKL enhanced CTX efficacy by promoting apoptosis, inhibiting autophagy and angiogenesis in tumor tissue while significantly alleviated CTX-induced toxicity, and could be applied along with CTX in clinical treatment as a supplement agent.