BACKGROUND:Tumor stem cels not only initiate tumorigenesis, but also are involved in the invasion and metastasis of tumor cels. For tumor stem cels, to identify the specific cel surface marker has become a research hotspot. OBJECTIVE:To explore the clinical significance of cancer stem cel surface marker CD44 in gastric cancer invasion and lymph node metastasis. METHODS: CD44 protein expression in specimens of gastric cancer tissue was detected by the immunohistochemical SABC method. The relationship between CD44 protein expression and biological characteristics and prognosis of gastric cancer was detected using Pearsonχ2 test and Cox regression analysis. RESULTS AND CONCLUSION:Among 100 cases of gastric carcinoma, 59 cases (59%) were positive for CD44 protein expression. CD44 protein expression in normal gastric mucosa at above 5 cm from the edge of primary gastric cancer was negative. CD44 protein was widely expressed in tissues of gastric cancer, mainly expressed in the cel membrane, and a smal amount of expression in the cytoplasm. CD44 protein expression in gastric cancer tissue was not correlated with sex of the patients or age (P > 0.05), but was associated with tumor staging and lymph duct tissue infiltration, histological grade, and tumor size (P < 0.05). Deep tumor invasion, high histological grade, big diameter of tumor, and lymph node metastasis could lead to high positive CD44 protein expression. Positive expression of CD44 is an independent prognostic factor affecting postoperative survival (P < 0.05). The results show that the cancer stem cel surface markers CD44 in gastric carcinoma tissues is strongly associated with invasion of gastric carcinoma and lymph node metastasis. High expression of CD44 presents poor prognosis.

OBJECTIVE:To investigate clinical efficacy and safety of breviscapine combined with vinpocetine in the treatment of acute cerebral infraction. METHODS:A total of 80 patients with acute cerebral infraction were selected from our hospital during Jan. 2014-Dec. 2015,and then divided into observation group and control group according to random number table,with 40 cases in each group. Control group was given Vinpocetine injection 20 mL+0.9％ Sodium chloride injection 250 mL,ivgtt,qd. Observa-tion group was additionally given Breviscapine injection 20 mL+5％ Glucose injection 250 mL,ivgtt,qd,at intervals of 2-3 h on the basis of control group. Both groups were treated for 2 weeks. Clinical efficacies as well as serum copeptin,NT-proBNP,albu-min cobalt binding(ACB)value,European stroke scale(ESS)and functional independence measurement(FIM)score before and after treatment were observed in 2 groups,and the occurrence of ADR was recorded. RESULTS:Total response rate of observation group(90.0％)was significantly higher than that of control group(67.5％),with statistical significance(P<0.05). Before treat-ment,there was no statistical significance in serum peptide,NT-proBNP,ACB value,ESS or FIM score between 2 groups (P>0.05). After treatment,serum copeptin and NT-proBNP levels of 2 groups were decreased significantly,while ACB value,ESS and FIM score were increased significantly;the improvement of observation group was significantly better than that of control group,with statistical significance(P<0.05). No obvious ADR was found in 2 groups. CONCLUSIONS:Breviscapine combined with vinpocetine can improve neurological function of acute cerebral infraction patients and show good therapeutic efficacy with good safety.

Three kinds of biomedical materials of stomatology were introduced,including metal materials,polymers and non-metal bio composites.The literatures related to stomatology biomedical materials from 2008 to 2015 were collected in PubMed medical literature retrieval service system,and then statistical method was used to analyze the literature number,the numbers of literatures on different materials as well as the nations distribution.Composite,intelligent and functional materials were pointed out to be taking the place of metal materials,and thus might extend their clinical application in the future.

OBJECTIVE:To discuss the contents and importance of clinical pharmaceutical care.METHODS:Our experiences in carrying out clinical pharmaceutical care in our hospital were analyzed through exemplification.RESULTS & CONCLUSION:Clinical pharmaceutical care can help improve the medical quality and reduce medical risks.Pharmacist system should be established in hospital to support the work of clinical pharmacists.

Objecfive To explore pathological mechanism and treatment of central hyponatrem-ia. Methods Synchronous assay was made to detect changes of atrial natriuretic peptide(ANP),brain natriuretic peptide(BNP),endogenous digitalis-like substance(EDLS),antideuretic hormone (ADH),Na+ concentrations in blood and urine as well as osmotic pressure of plasma and urine in 68 pa-tients with traumatic brain injury(TBI). Results Of all,there were 27 patients with hyponatremia,mostly in patients with severe or critical TBI.There found syndrome of inappropriate secretion of antidi-uretic hormone(SIADH)in 7 patients and cerebral salt wasting syndrome(CSWS)in 20. Conclu-sions The central hyponatremia in patients with TBI may be related to the increased secretion of EDLS and ADH.The decrease of ANP and BNP in blood has no direct effect on Na+ concentration in blood.In-travenous injection of extrinsic thyrotropin releasing hormone(TRH)may inhibit dilutional hyponatremia resulted from increased secretion of ADH in TBI patients.

OBJECTIVEThis study aims to investigate the regulatory effects of calcitonin gene-related peptide (CGRP) on Nod-like receptor protein 3 (NLRP3) and interleukin-1β (IL-1β) to promote osteoblast differentiation.

METHODSDifferent concentrations of CGRP (0, 10, 30, 100 ng · mL⁻¹) were added to mouse osteoblasts in vitro. The mRNA and protein expression levels of both NLRP3 and IL-1β were examined using Real-time polymerase chain reaction and Western blot, respectively. Moreover, the concentrations of IL-1β protein and intracellular reactive oxygen species (ROS) were detected using enzyme-linked immunosorbent assay and flow cytometry, respectively. The osteogenic differentiation of mouse osteoblasts was identified through alizarin red staining.

RESULTSThe protein and mRNA expression levels of both NLRP3 and IL-1β significantly decreased (P < 0.05) with increasing CGRP concentration. Moreover, the contents of intracellular ROS gradually decreased (P<0.05). The osteogenic differentiation of the osteoblasts was more enhanced in the group treated with 100 ng · mL⁻¹ CGRP than in the empty group (0 ng · mL⁻¹ CGRP).

CONCLUSIONCGRP promotes osteoblast differentiation by inhibiting the expression of inflammatory factors.

Animals ; Blotting, Western ; Calcitonin ; Calcitonin Gene-Related Peptide ; Cell Differentiation ; Enzyme-Linked Immunosorbent Assay ; Interleukin-1beta ; Mice ; NLR Family, Pyrin Domain-Containing 3 Protein ; NLR Proteins ; Osteoblasts ; Osteogenesis ; RNA, Messenger ; Reactive Oxygen Species ; Real-Time Polymerase Chain Reaction

[Objective] To analyze the image findings of MR enterography (MRE) and diffusion weighted imaging (DWI) in Crohn disease (CD) and to discuss the diagnostic value of MRI for evaluating the activity of CD.[Methods] 26 patients proved by clinical,imaging and pathological data were enrolled in this study.The intra-/extra-intestinal image features of CD were retrospectively analyzed,and the intestinal lesions were evaluated by MRE+DWI scoring system.The differences in image features of active and inactive CD were compared.[Results] 26 bowel segments were evaluated and included active (n =20) and inactive CD (n =6).The intestinal performance of CD included wall thickening,T2WI hyperintensity and hyperenhancement.The pathological changes of active CD were more serious when comparing with that of inactive CD.DWI showed hyperintensity in the affected bowel wall.ADC of active C D [(0.9 ± 0.2) × 10-3 mm2/s] was significantly lower than that of inactive CD [(1.5 ± 0.4)× 10-3 mm2/s] (P ＜ 0.001).Extra-enteric performance of active CD included comb sign,lymphadenectasis of mesentery,mesenteric exudation,fistula and abdominal abscess.[Conclusion] MRE combined with DWI can accurately assess CD activity and diagnose extra-enteric complications.

[Objective] To measure the diameter of the superior rectal vein (SRV) & theinferior mesenteric vein (IMV) by CT and analyze their relationship with lymphatic metastasis of rectal carcinoma.And to discuss the feasibility of utilizing SRV to prcdict lymph node metastasis of rectal cancer.[Methods] The CT imaging and pathological data of 105 rectal carcinoma patients were analyzed retrospectively.We measured and compared the diameter of every patient's SRV & IMV by CT in the presence and absence of microvascular tumor thrombus,signet ring cell,lymph node metastasis and distant metastasis.The accuracy of predicting lymph node metastasis for rectal carcinoma by the diameter of SRV were evaluated by ROC curve.[Results] There were statistical differences in the diameters of SRV and IMV between rectal cancer group with lymph node metastasis (D =4.34 mm,D =5.00 mm) and without (D =3.56 mm,D =4.81 mm;P ＜ 0.001,P =0.023).The differences were significant in the diameter of SRV between rectal cancer group with microvascular tumor thrombus or signet ring cell and without (P =0.019,P =0.044).However,the diameter of IMV showed no statistical difference between rectal cancer group with microvascular tumor thrombus or signet ring cell and without (P =0.605,P =0.663).And there was no statistical difference in the diameter of SRV or IMV between rectal cancer patients with distant metastasis and without (P ＞ 0.05).Regarding 3.75 mm as the cut-off value for the diameter of SRV to predict lymph node metastasis for rectal cancer patients,the sensitivity was 90.9％ and the specificity was 82.0％.Regarding 4.65 mm as the cut-off value for the diameter of IMV to predict lymph node metastasis for rectal cancer patients,the sensitivity was 87.3％ and the specificity was 38％.[Conclusions] It is completely feasible to utilize the diameter of SRV measured by CT to predict lymph node metastasis of rectal carcinoma with high sensitivity,accuracy,and relatively high specificity.

Objective To research the effect of mir-520c-3p targeted GPC3 to the hepatocellular carcinoma Huh-7 cell proliferation,migration,and the influence of the attack ability and find new theoretical basis for liver hepatocellular carcinoma clinical treatment.Methods The cells were divided into three groups:not transfection of mir-520c-3p group (cell group),negative control group (Nc group),and transfection of mir-520c-3p group (treat ment group).Then used fluorescence quantitative PCR and Western Blot to detect GPC3mRNA gene and protein expression quantity.Cell proliferation of change was detected by the EDU.Made use of Transwell to detect cell invasion and migration ability of the change.Results Fluorescence quantitative PCR results showed that Cell group,NC group and treatment group were 1.13 ± 0.23,1.28 ± 0.15 and 1.05 ± 0.19 (P ＞ 0.05),mir-520-3p could not reduce the GPC3mRNA; but Western Blot detection results showed that GPC3 protein expression level reduce significantly after transfection mir-520c-3p,Cell,NC and treatment group were 2.16 ± 0.08,1.99 ± 0.04 and 0.499 ± 0.05 (P ＜ 0.01).The EDU detection results showed that hepatocellular carcinoma Huh-7 cell proliferation ability obviously inhibited after transfection mir-520c-3p,Cell group,NC group and treatment group were (90.12 ± 1.93) ％,(91.02 ± 0.35) ％ and (77.73 ± 5.88) ％ (P ＜ 0.05),and Transwell test found that hepatocellular carcinoma Huh-7cell invasion abilities were restrained,Cell group,NC group and treatment group were 0.071 ±0.008,0.105 ±0.001 and 0.048 ± 0.002 (P ＜ 0.05),in the same the cells' migration abilities were reduced,Cell group,NC group and treatment group were 0.546 ± 0.010,0.328 ± 0.002 and 0.151 ± 0.002 (P ＜0.01).Conclusions Mir-520c-3p can target GPC3 so that affect hepatocellular carcinoma Huh-7 cell proliferation,invasion and migration abilities.

[Objective]To explore the efficacy of T2* mapping for evaluating inflammatory activity in the patients with Crohn disease(CD).[Methods]A total of 98 CD patients underwent MR enterographywith T2*WI. T2* values were measured by put-ting regions of interest on the thickening bowel wall on T2*mapping. The activity of bowel segment was scored by magnetic resonance index of activity(MaRIA),to analyze the relationship between T2*values with CD activity.[Results]A total of 160 bowel segments were evaluated and includedinactive(MaRIA<7,n=26),mild(7≤MaRIA<11,n=23),and moderately-severe(MaRIA≥11, n = 111)active lesions. The differences in T2* values amongthese three groups were significant(all P < 0.05). T2* values of 160 bowel segments correlatedclosely withMaRIA(r=0.743,P<0.05). High accuracy of T2*values was shown for differentiating inac-tive from active CD(AUC=0.877)anddifferentiating inactive-mild from moderate-severe CD(AUC=0.848). The threshold T2*value of 20 ms allowed differentiation of mild from moderate-severe CD with74.5%sensitivity and 84%specificity.[Conclusions]T2*values, as thequantitative indexof T2*mapping,correlate well with CD activity and showsatisfiedefficacy for diagnosing inflammatoryactivity.