The expression and prognostic value of EGFR,HER2 and HER3 in cholangiocarcinoma / 实用肿瘤学杂志

Objective The aim of this study was to observe the expression of human epidermal growth factor receptor( EG-FR),epidermal growth factor receptor 2(HER2)and epidermal growth factor receptor 3(HER3)in cholangiocarcinoma(CCA),and to explore the relationship between the expression of EGFR,HER2,HER3 and the clinicopathological features,overall survival time and proliferation of CCA patients. Methods Fifty patients with CCA who underwent surgery in our hospital from January 2009 to October 2013 were enrolled,and their adjacent tissues were also collected as controls. Immunohistochemistry and qRT-PCR were used to de-tect the expression of EGFR,HER2 and HER3 in CCA and adjacent tissues. The clinicopathological parameters of patients were col-lected and the relationship between EGFR,HER2,and HER3 expression and clinicopathological parameters of CCA was analyzed. Ka-plan-Meier survival curves were plotted,and the relationship between the expression of EGFR,HER2,and HER3 and total postopera-tive survival of 50 patients with CCA was analyzed using the Log-rank test and Cox proportional hazard model. The expression of EG-FR,HER2 and HER3 in CCA QBC939 cell line was knocked down by RNA interference assay. The knockdown effect of EGFR,HER2 and HER3 was detected by Western blot. The effect of EGFR,HER2 and HER3 on proliferation of QBC939 cells was determined by MTT assay. Results The positive expression of EGFR,HER2 and HER3 was determined in CCA tissues. The relationship analysis of clinicopathological characteristics showed that the HER2 expression was associated with CCA lymph node metastasis(P<0. 05). EG-FR and HER3 was associated with CCA lymph node metastasis and correlated with cancer differentiation(P<0. 05). The overall sur-vival of patients with EGFR,HER2 and HER3 positive was significantly lower than that of negative patients( P<0. 05). After knoc-king EGFR,HER2 and HER3 expression,the proliferation was significantly decreased in QBC939 cells(P<0. 05). Conclusion The expression of EGFR,HER2 and HER3 in CCA tissues is closely related to the overall survival of patients,and the mechanism may be related to the promotion of proliferation of CCA cells.

Clinical efficacy and ultrasonographic evaluation of anti-thyroid drugs in the treatment of primary hyperthyroidism / 中国生化药物杂志

Objective To investigate the clinical efficacy and ultrasonographic changes treated with anti-thyroid drugs ( ATD ) in patients with primary hyperthyroidism(PHT).Methods 83 cases of PHT patients admitted to the department of ultrasound from February 2013 to August 2015 in Zhuji People's Hospital of Zhejiang Province were selected, the patients were divided into two groups according to the results of ultrasonography, echo nonuniform group 41 cases and echo uniform group 42 cases.ATD therapy was administered to the both groups (were treated with methimazole).The thyroid related indexes and hemodynamics of thyroid right superior diagnosed by color doppler ultrasound, and the curative efficacies of the two groups were analyzed.Results After treatment, the systemic vascular resistance index(RI) of echo uniform group was (0.62 ±0.17), and the echo nonuniform group was (0.65 ±0.18), there was no significant difference between the two groups.The echo uniform group of thyroid artery diameter on the right lobe(D), the peak systolic velocity(Vmax), minimum diastolic blood flow velocity(Vmin), thyroid volume(V) and blood flow volume(Q) were significantly lower than the echo nonuniform group, the difference was statistically significant (P <0.05).The total effective rate of the echo nonuniform group (48.78%) was significantly lower than that in the echo uniform group (85.71%), the difference was statistically significant(P <0.05).Conclusion ATD has a good effect in treating PHT, and can significantly improve the thyroid hemodynamics in patients, it has a positive effect on the regulation of thyroid-related parameters in patients, the clinical treatment is effective, and the effect is better especially in patients with uniform echo.

Application of low molecular weight heparin combined with psychological intervention in prevention of deep venous thrombosis after lower limb fracture surgery / 中国生化药物杂志

Objective To study the clinical application of low molecular weight heparin combined with psychological intervention in the prevention of deep venous thrombosis after lower limb fracture surgery.Methods 100 patients with lower limb fracture treated in our hospital from January 2013 to December 2016 were selected as the research object in the course of the study, and randomly divided into control group and experimental group, with 50 cases in each group,.The patients in control group were treated with routine lower limb physical pressure to prevent deep venous thrombosis after lower limb fracture.The patients in the experimental group were treated with low molecular heparin combined with psychological intervention to prevent deep vein thrombosis after lower limb fracture.Comparative analysis of patients with prothrombin time and platelet and the experimental group and the control of activated partial thromboplastin time index.Results After different treatment, the platelet index of the experimental group was(189.23±36.23)×109 /L, significantly better than that of the control group(264.34±39.56)×109/L,the difference was statistically significant(P<0.05).After treatment, the patients in the experimental group the activated partial thromboplastin time and prothrombin time index respectively(35.62±4.23)s and(16.12±2.19)s, significantly better than the control group, the difference was statistically significant(P<0.05).Conclusion low molecular weight heparin combined with application of psychological intervention in prevention of deep venous thrombosis after lower limb fracture surgery, can improve clinical curative effect on prevention of deep vein thrombosis in a large extent, improve blood hypercoagulable state of patients after surgery, with further clinical promotion and application significance.

The change of organic matter in sewage sludge composting and its influence on the adsorption of pentachlorophenol (PCP).

Due to the abundance of organic matter in compost, the addition of compost to soil can promote the adsorption of pesticides. However, few studies have examined the influence of the composting duration on the organic matter (OM) transformation and adsorption capacity of the compost. In this study, a mixture of sewage sludge and straw was composted, and then the physicochemical properties of various OM were studied. Additionally, the sorption capacities of humic acid (HA), humin (HM), humic acid + humin, and fulvic acid (FA) + humic acid + humin extracted from composts of different stages toward pentachlorophenol (PCP) were compared. The sorption data can be well-described by the Freundlich model, and the sorption capacity of PCP on HM is the strongest of all organic components. After 120 days of composting, the sorption abilities of HA and HM increased by 54.76 and 36.73%, respectively, which corresponds with increases in the aromatization degree, BET specific area, and pore volume and with a decrease in acid functional groups. The sorption ability of HA and HM increased by 54.76 and 36.73% due to the increase of the aromatization degree. However, the sorption capacity of the compost decreased by 51.2%, which resulted from a decrease in total organic matter content and from the interaction between organic components in composts. This could be verified by the sequence of the sorption capacity: HM > HM + HA > HM + HA + FA > HA. The contribution of humus to the sorption of PCP onto compost is approximately 41 to 55%, and it increases with composting time. Therefore, it is possible that other components are present that affect the adsorption of PCP on composts.

pH-dominated niche segregation of ammonia-oxidising microorganisms in Chinese agricultural soils.

Ammonia-oxidising archaea (AOA) are increasingly recognised as the primary mediators of soil ammonia oxidation, particularly in acidic soils. To explore the niche segregation of AOA and ammonia-oxidising bacteria (AOB) and the potential effect of this segregation on nitrification rates and the nitrogen cycle in Chinese agricultural soils, AOA and AOB amoA gene databases were established, and 454 high-throughput sequencing was used to investigate the key factors leading to the niche segregation of these two types of microorganisms. qPCR results demonstrated that there were more functional genes for AOA than for AOB in most of the soils. AOA diversity was higher than AOB diversity in most of the soils with AOA operational taxonomic units (OTU) numbers ranging from 40 to 169 and AOB OTU numbers ranging from 18 to 105. pH was the most important factor influencing the community structure of AOA (P < 0.01) and AOB (P < 0.05), and acidophilic AOA (i.e. Nitrosotalea-related sequences) were dominant in soils with pH values below 6.0. In addition, AOA amoA gene copy numbers were significantly positively correlated with pH (P < 0.05), the ratio of AOA OTU numbers/AOB OTU numbers was significantly negatively correlated with pH (P < 0.05), and the percentage of sequences represented by the Nitrosotalea cluster was significantly negatively correlated with pH (P < 0.01).

Mechanism of and relation between the sorption and desorption of nonylphenol on black carbon-inclusive sediment.

Correlation between the sorption and desorption of nonylphenol (NP) and binary linear regression were conducted to reveal the underlying mechanism of and relation between sorption domains and desorption sites in black carbon (BC)-amended sediment. The sorption and desorption data could be fitted well using dual-mode (R(2) = 0.971-0.996) and modified two-domain model (R(2) = 0.986-0.995), respectively, and there were good correlations between these two parts of parameters (R(2) = 0.884-0.939, P < 0.01). The NP percentage in desorbable fraction was almost equal to that of the partition fraction, suggesting the desorbed NP came from linear partition domain, whereas the resistant desorption NP was segregated in nonlinear adsorption sites, which were dominated by pores in BC-amended sediment. Our investigation refined theory about the relation between sorption domains and desorption sites in sediment and could be used to predict the release risk of NP using sorption data when BC is used for NP pollution control.

Effect of different ammonia concentrations on community succession of ammonia-oxidizing microorganisms in a simulated paddy soil column.

Ammonia oxidation is performed by both ammonia-oxidizing bacteria (AOB) and ammonia-oxidizing archaea (AOA). To explore the effect of ammonia concentration on the population dynamic changes of ammonia-oxidizing microorganisms, we examined changes in the abundance and community composition of AOA and AOB in different layers. Most of the archaeal amoA sequences were Nitrosotalea-related and the proportion that Nitrosotalea cluster occupied decreased in the surface layer and increased in the deep layer during the cultivation process. Nitrosopumilus-related sequences were only detected in the deep layer in the first stage and disappeared later. Both phylogenetic and quantitative analysis showed that there were increased Nitrosomonas-related sequences appeared in the surface layer where the ammonia concentration was the highest. Both AOA and AOB OTU numbers in different layers decreased under selective pressure and then recovered. The potential nitrification rates were 25.06 µg · N · L(-1) · g(-1) dry soil · h(-1) in the mid layer which was higher than the other two layers. In general, obvious population dynamic changes were found for both AOA and AOB under the selective pressure of exogenous ammonia and the changes were different in three layers of the soil column.

Design and efficacy of surgery for horizontal idiopathic nystagmus with abnormal head posture and strabismus / 华中科技大学学报（医学）（英德文版）

The design and efficacy of surgery for horizontal idiopathic nystagmus (HIN) with abnormal head posture and strabismus were investigated. Different surgical procedures were selected according to the angle of head turn in 44 cases of HIN with abnormal head posture and strabismus. For patients with a head turn of 15° or less, the Anderson procedure was used; the yoke muscles were recessed upon slow-phase. For patients with a head turn between 15° and 25°, the surgery was designed as a Kestenbaum 5-4-4-5 procedure. For patients with a head turn of 25° or more, the surgery was designed as a Parks 5-8-6-7 procedure. The surgery to correct the abnormal head posture was performed on the fixating eye while that to correct the deviation was then performed on the non-fixating eye at the same time. The amount of surgery of the horizontal rectus muscles on the non-fixating eye was sum of the angle of head turn and the degree of deviation, which was calculated as follows: recession/resection amount of medial and lateral rectis/2×5=angle of head turn±degree of deviation. The results showed as follows: (1) Visual acuity: the visual acuity in the primary ocular position increased two lines or more in 35 patients, accounting for 79.55%. Nine patients had no or only one-line improvement, accounting for 20.45% of the entire study population; (2) The degree of deviation in the primary ocular position: 37 cases had a normal primary ocular position or the degree of deviation ≤8(δ) after surgery, accounting for 84.09%. Six patients had a residual degree of deviation of 8(δ)-15(δ), accounting for 13.64%. One patient had a residual degree of deviation >20(δ), accounting for 2.27% of the patients examined; (3) Abnormal head posture: 34 patients had a normal head posture or a head turn of less than 5°, accounting for 72.27%. Eight patients had a residual head turn of 5°-15°, accounting for 18.18%. Two patients had a head turn of 15°-25°, accounting for 4.55%. It was concluded that different surgical procedures based on the angle of head turn and the relationship between deviation and null zone can eliminate anomalous head posture, correct deviation, and improve vision acuity in the primary ocular position.