Objective To investigate the diagnostic value of YKL‐40 and CEA in malignant pleural effusion .Methods There were 45 cases of benign pleural effusion and 52 patients with malignant pleural effusion in this study from November 2013 to No‐vember 2014 .Enzyme linked immunosorbent assay(ELISA) and electrochemi lumine scence immunoassay(ECLIA) method were carried out to detect the concentration of YKL‐40 and CEA respectively .The differences of the two groups of patients between YKL‐40 and CEA levels were compared ,and the correlation between YKL‐40 and clinical pathology of malignant pleural effusion were analyzed .In addition ,the receiver‐operating characteristic curve(ROC curve) was used to compare the diagnostic value be‐tween YKL‐40 and CEA .Results The average value of YKL‐40 in malignant pleural effusion was (189 .5 ± 147 .0)ng/mL ,and sig‐nificantly higher than in benign pleural effusion group(P< 0 .05) .The elevated level of YKL‐40 was related to tumor types and lymphatic metastasis(P<0 .05) ,but it had no correlation with the gender ,age and degree of tumor differentiation(P>0 .05) .The diagnostic sensitivity and specificity of YKL‐40 was 80 .9% and 51 .2% ,which was lower than CEA(83 .1% and 74 .6% )(P<0 .05) .However ,the sensitivity and specificity was 90 .6% and 88 .2% when combined the two biomarkers together .Conclusion YKL‐40 have a certain clinical diagnostic value in malignant pleural effusion ,it indicate to adenocarcinoma or advanced cancer when the level of YKL‐40 rised .Since the sensitivity and specificity is lower than traditional biomarker of CEA ,we should combine with the other tumor markers to improve the diagnostic accuracy .

BACKGROUND:Lumbar degenerative disease is a common and frequently occurring disease in spinal surgery. With increasing age, the incidence rate is increased. OBJECTIVE: To elevate clinical outcomes and improve the quality of life of patients by analyzing spinal stability after lumbar implant fixation fusion and functional training in treatment of lumbar degenerative disease. METHODS: (1) We used a prospective randomized controled design. The 52 patients with I° or II° degenerative lumbar spondylolisthesis were randomly divided into two groups, with 26 cases in each group. Conventional exercises were carried out in the control group and core stabilization exercises for the treatment group, with course of treatment for 24 weeks. Curative effects of numerical rating scale and the Oswestry Disability Index were compared at 6, 12 and 24 weeks after treatment respectively. (2) Spinal stability after lumbar fusion and fixation of the implant for degenerative lumbar spondylolisthesis was evaluated by database document retrieval. RESULTS AND CONCLUSION:(1) After 24 weeks, numerical rating scale score and the Oswestry Disability Index were significantly lower in the treatment group than in the control group (P < 0.05 orP < 0.01). Core stabilization exercises apparently relieve lumbar pain and improve the ability of activities. Core stabilization exercises are better than conventional training. (2) Pedicle instrument fixation combined with interbody fusion is effective for lumbar spondylolisthesis within the second degree. Posterior interbody fusion has predominant mechanical property in maintaining spondylolisthesis orthopedic and stabilizing the structure. Correction loss and fixation failure easily occur after posterolateral fusion, but clinical effects are not affected.

AIM: To observe the effect of Tongjingning Capsule (Radix Angelicae Sinensis, Rhizoma Chuanxiong, Rhizoma Cyperi, etc.) on reproductive organs of female immature mice and anti inflammatry analgesia. METHODS: Mouse uterus and ovaries were weighted. Mouse twisting numbers induced by acetic acid and mouse pain thresholds after heat stimulation were recorded. Swelling of mouse external ears, swelling of rat toes and rat granuloma were used for experiment models. RESULTS: Tongjingning Capsule significantly increased the weight of mouse uterus and ovaries. It could reduce mouse twisting numbers and prolong mouse pain thresholds after heat stimulation. It had inhibitory effects on swelling of mice's external ears resulted by dimethylbenzene, rat granuloma and swelling of rat toes resulted by egg white. CONCLUSION: Tongjingning Capsule can promote the growth of reproductive organs of female immature mice and ease pain and diminish inflammation.

Objective:To study the relationship between S-100 protein and prognosis of laryngeal carcinoma.Method:S-100 protein was observed by immunohistochemical methods using anti-S-100 protein antibody in 68 laryngeal carcinoma and 21 non-cancer laryngeal tissues.Result:The result showed that S-100 protein positive were found 43(63.24%)in 68 laryngeal carcinoma.S-100 protein positive cells were interspersed among the tumor cells and in the stroma.S-100 protein were rare in non-cancer laryngeal tissues.The five-year survival rate in patients with S-100 protein positive was significantly higher than that in patients with S-100 protein negative.Conclusion:Our result indicated that the detection of S-100 protein is of value for the prognostic analysis in patients with laryngeal carcinoma.

Objective To evaluate the long-term efficacy of recombinant human endostatin (rh-Endo) combined with FOLFOX4 as an adjuvant treatment for patients of stage Ⅱ and Ⅲ colorectal cancer.Methods Eligible patients were randomly assigned to receive FOLFOX4 or FOLFOX4 plus rh-Endo regimen in which patients receiving 7.5 mg/m2 Ⅳ on day 1-7,repeated every 2 weeks,to a total of 12 cycles in 6 months.Results A total of 197 eligible patients were accrued in this research with 105 patients in the control group and 92 patients in the experimental arm.Median follow-up period was 42 months.The baseline characteristics distributed were balanced by treatment.Rh-Endo combined with FOLFOX4 regimen resulted in significant improvement on DFS compared to FOLFOX4 regimen for patients with stage Ⅲ colon cancer (HR =0.19,95％ CI0.05-0.75,P =0.0124),and with a 34％ improvement on 3-year DFS and 81％ reduced recurrence.Although rh-Endo combined with FOLFOX4 regimen failed to make significant difference on DFS in the whole (HR =0.75,95％ CI 0.31-1.83,P =0.5589),it was also observed a 17％ improveiment on 3-year DFS.No statistical significant difference on DFS was observed in patients with stage Ⅱ disease.Conclusions Rh-Endo combined with FOLFOX4 regimen significantly improved the disease-free survival for patients with stage Ⅲ colorectal cancer,indicating that patients with stage Ⅲ disease,but not stage Ⅱ disease,can benefit from FOLFOX4 plus rh-Endo regimen in adjuvant treatment.

Objective To establish the rat model of collagen-induced arthritis and study the diagnostic value of MRI for early RA by comparing to pathological changes. Methods Thirty Wistar rats were randomly divided into normal groups and experimental groups.Fifteen rats of the experimental groups were immunized with type Ⅱ collagen and Freund's Adjuvant Incomplete. At the scheduled days, the selected rats of both experimental and normal groups underwent X-ray, 1.5T MR scan plus enhancement and histological analysis. Results Arthritis Index increased on the 14th day after immunization and reached the peak on the 28th day in the experimental group, the positivity of Anti-CⅡ antibody was significantly different from the normal group.The experiemental model was established in 93.33% of all rats. The enhanced MRI showed that 12 (12/15) rats presented with abnormal signs . The sensitivity of MRI was 85.71% and the specificity was 100%. There was no significant correlation could be found between MRI and histological changes X-ray revealed soft tissue swollen in 4 (4/15) rats, which showed that MRI had higher sensitivity in detecting abnormal signs of arthritis than X-ray. Conclusion MRI may be used in the early diagnosis of early RA.

The purpose of this study was to synthesize and evaluate the necrosis target of MRI contrast agent based on rhein.The novel ligand 10-{ [6-(1,8-dihydroxyanthraquinone-3-carboxamido) hexyl] amino} acetyl-1,4,7,10-tetraazacyclododecan-1,4,7-triacetic acid (DO3A-rhein) was synthesized by two-step acylation and two-step deprotection.The paramagnetic contrast agent gadolinium 10-{ [6-(1,8-dihydroxyanthraquinone-3-carboxamido) hexyl] amino} acetyl-1,4,7,10-tetraazacyclododecan-1,4,7-triacetate (Gd-DO3A-rhein) was obtained by coordination of Gd3+ with the synthesized ligand.Its necrosis affinity was evaluated by liver infarction and muscular necrosis on rat models.The MRI was performed before administration of Gd-DO3A-rhein and during 0 h to 12 h after administration of Gd-DO3A-rhein (0.1 mmol/kg),respectively,and Gd-DOTA was used as control.After MRI scanning,rats were sacrificed and necrotic tissues were stained using triphenyltetrazolium chloride (TTC) and hematoxylin-eosin (HE).MRI images of liver infarction and muscular necrosis on rat models showed significantly enhanced signal intensity compared with normal tissues.The contrast ratios of necrotic liver/normal liver were 1.61 ±0.14 and 2.36 ±0.20 at 3 h and 12 h postinjection of Gd-DO3A-rhein (0.1 mmol/kg) respectively,demonstrating a significant difference compared with pre-administration of Gd-DO3A-rhein (1.16 ±0.10;P ＜ 0.05).The same results were obtained from necrotic muscles.These findings suggested that Gd-DO3A-rhein possessed the necrosis target and imaging capability of necrotic tissues.

BACKGROUND:Macropore morphology of a composite scaffold prepared by the three-dimensional printing technique is of great importance in determining the physicochemical and biological properties of tissue engineering scaffolds.OBJECTIVE:To fabricate strontium-containing mesoporous (Sr-MBG) bioactive glass (PCL) scaffolds by the three-dimensional printing technique, and to explore the effect of these scaffolds on MC3T3-E1 proliferation and osteogenic differentiation, thereby to find out the optimal macropore morphology.METHODS: Sr-MBG/PCL composite scaffolds were fabricated by the three-dimensional printing technique. The angles between fibrous latitudes and longitudes were set to 45°, 60° and 90°. Then the proliferation and alkaline phosphatase activity of MC3T3-E1 cells on the scaffolds were tested.RESULTS AND CONCLUSION: Cell counting kit-8 results showed that MC3T3-E1 cells could proliferate on all the three kinds of scaffolds. The proliferation rate of MC3T3-E1 cells on the 45° Sr-MBG/PCL scaffolds was just slightly higher than that on the 60° and 90° Sr-MBG/PCL scaffolds at days 1 and 4 (P > 0.05), but there was a significant increase at day 7 (P < 0.05). The 45° Sr-MBG/PCL scaffolds exhibited a significant increase in alkaline phosphatase activity of MC3T3-E1 cells compared to the 60° and 90° Sr-MBG/PCL scaffolds at day 14 (P < 0.05), while there was no significant difference among three groups at day 21 (P > 0.05). These results indicate that the 45° Sr-MBG/PCL scaffold is more suitable to promote the proliferation and osteogenic differentiation of the MC3T3 cells than the 60° and 90° Sr-MBG/PCL scaffolds.

Objective To establish a mouse model of circulating tumor cells (CTCs) by applying mouse hepatoma Hapa 1-6 cells.Methods 108 healthy male C57BL/6 mice were randomly divided into 3 groups according to their body weights.Hepa 1-6 cell suspension was intravenously injected to each mouse in the three groups at a concentration of 1×106,5×106 and 1×107/mL,0.2 mL per mouse,respectively.Blood samples were collected from the mice on the 1st,5th,9th,13th,17th and 21st days after tumor cell injection.The number,ratio and relative inhibition rate of CTCs were calculated in 20,000 nucleated cells.The mortality of mice was recorded.②80 male C57BL/6 mice were averaged into 2 groups according to their body weight: control and sorafenib tosylate groups.0.2 mL of Hepa 1-6 single cell suspension was injected to each mouse through the caudal vein at a concentration of 5×106/mL.The mice were gavaged with sorafenib tosylate (50 mg/kg) for 21 days and blood samples were collected at the 3rd,8th,15th,and 21st days for CTC assessment.Results For the 1×106/mL group,the CTC inhibition rate was 25.1%,18.1%,8.9%,4.4%,2.9% and 0.3% on the 1st,5th,9th,13th,17th and 21st days,respectively,and all the mice were alive.For the 5×106/mL group,the CTC inhibition rate was 40.4%,35.4%,15.4%,9.0%,6.6% and 4.1% on the 1st,5th,9th,13th,17th and 21st days,respectively,and all the mice were alive.For the 1×107/mL group,the CTC inhibition rate was 39.1% and 33.5% on the 1st and 5th days,respectively.Some mice died immediately after intravenous injection and all mice died within 7 days.②The relative clearance of CTCs was-7.5%,4.6%,55.3% and-94.5% on the 3rd,8th,15th and 21st days of sorafenib tosylate administration.Compared with the control group,there were significant differences among the three groups (P<0.05 or P<0.01).Conclusions A mouse model of circulating hepatoma cells has been established by intravenous injection of 0.2 mL of 5×106/mL mouse Hepa 1-6 cell suspension.This mouse model can be used for screening and evaluation of drugs for circulating tumor cell inhibition.