Objective To investigate the change ofpermeability surfaces (PS) of CTperfusion(CT-p) before chemotherapy and early period treatment with chemotherapy (the first cycle of chemotherapy) in advanced non-small cell lung cancer and explore the correlation with the efficacy of chemotherapy.Methods Eighty patients with advanced non-small cell lung cancer which confirmed by pathology were taken standardized treatment by first-line drug.All patients performed with the CT-p technique before chemotherapy and one cycle after chemotherapy.The efficacy was evaluated by RECIST after 4 cycles of chemotherapy,the patients were divided into complete remission (CR) + partial response (PR),stable (SD),development (PD) according to the results and the change of PS was compared among these groups before chemotherapy and after 1 cycle of chemotherapy.Results Seventy-four patients' values of PS were useful.The remission rate and the stability rate was 32.4％ (24/74) and 78.4％ (58/74) respectively after 4 cycles of chemotherapy.PS after 1 cycle of chemotherapy in CR +PR (24 cases) and SD (34 cases) was lower than that before chemotherapy (12.38 ± 1.86 vs.18.13 ± 2.45,13.24 ± 1.97 vs.17.93 ± 2.38),and there was significant difference (P ＜0.05).There was no obvious change in PS before chemotherapy and after 1 cycle of chemotherapy in PD (16 cases),and there was no significant difference(P＞ 0.05).Conclusions The value of PS which reflects the change of perfusion in tumor vessel at early chemotherapy and the prognosis of the non-small cell lung cancer.Use the change of PS to predict the prognosis of patients with chemotherapy.It could be the norm of calculating the curative effect of chemotherapy in non-small cell lung cancer.

Hepatocellular carcinoma (HCC) complicated by arterioportal shunt (APS) is commonly seen in clinical practice,with an incidence rate of 28.8％-63.2％.It is manifested as abdominal pain,diarrhea,and ascites and can also lead to serious complications of portal hypertension including gastrointestinal bleeding.Although there are various therapeutic methods,they tend to have poor clinical effects.APS is one of the most important causes of death in patients with HCC.This article introduces the etiology,typing,clinical manifestation,and therapies of HCC complicated by APS and points out that although there are various therapeutic methods for HCC complicated by APS,interventional treatment remains the most important method.The exploration of interventional treatment helps to improve patients' prognosis.

Objective To study the effects of different factors influencing the quality of life of elderly esophageal cancer patients who returned to the community after surgery.Methods A total of 216 elderly esophageal cancer patients with complete clinical data who had returned to the community after surgery were followed up by questionnaires,including the European Organization for Research and Treatment of Cancer Quality of Life rating (EORTC QLQ-C30) and esophageal cancer supplementary (QLQ-OES18) scales.Results The overall quality of life score of the patients was (35.2±22.1),which was lower than that in the Norwegian norm data.Scores for cognitive function,constipation,diarrhea,shortness of breath and loss of appetite were similar to those in the norm data.Scores for physical function,emotional function,role function and were lower than those in the norm data,while scores for pain,fatigue,nausea and vomiting,sleeplessness and were higher than those in the norm data.The overall quality of life score was higher in male patients than in female patients (F =5.12,P=0.029),in patients with spouses than in those without spouses (F=5.61,P=0.016),and in patients without complications than in those with complications (F=5.48,P=0.002).The overall quality of life was higher with longer survival times after surgery (F=3.68,P=0.003).No significant difference in the overall quality of life score was found between different age-groups (F=4.23,P=0.212).Conclusions The overall postoperative life quality is poor in community elderly patients with esophageal carcinoma.Gender,marital status,postoperative survival time,and complications are among the factors influencing postoperative quality of life of community elderly patients with esophageal carcinoma.

Selective serotonin reuptake inhibitors (SSRIs),a new generation of anti-depressant agent,are mainly used to treat emotional disorders in clinical practice now.Recent studies have found that SSRIs can increase neurogenesis after cerebral ischemia,promote neurovascular reconstruction,and are conducive to the recovery of neurological function.Furthermore,SSRIs can improve the tolerance of ischemic tissue,exert anti-inflammation and anti-oxidation properties,reduce the blood-brain-barrier injury,and inhibit excitatory amino acid toxicity in order to exert neuroprotective effect.This article reviews the related research progress in SSRIs and ischemic stroke.

Right ventricular (RV) function is very important for patients with respiratory and cardiovascular disorders resulting in RV impairments. Since RV has complex geometry of the chamber, it is difficult to accurately measure the RV volumetric parameters with conventional imaging modalities, especially those with dilated and abnormal RV. With the emergence and wide use of new noninvasive imaging modalities in accessing the cardiac anatomy and function, real-time three-dimensional echocardiography (RT3DE), multi-detector row computed tomography (MDCT) and new MRI sequences, noninvasive quantitative assessment of the RV function has attracted more and more worldwide attention.

Various kinds of flavanoids such as flavone,flavonol,flavanone,isoflavone,flavanol and so on,have protective effects on the liver injuries,which are induced by chemicals,drugs,immunostimulation,alcohol and hepatic ischemia reperfusion in some degree.These kinds of protection are relevant to the function of flavanoids such as elimination of free radical,resistance of oxidation,resistance of lipid peroxidation,adjustment of immune function and so on.The study of the effect of flavanoids on animal experimental liver injury plays an important role in the development of drugs for prevention and treatment of liver diseases.This article is to summarize the research progress of the effect of flavanoids on experimental liver injury of animals.

Objective The various influencing factors in the process of nano-silver preparation were studied in order to prepare nano-silver that has uniformity particle size distribution and good crystallinity. Methods Through the method of liquid reduction at room temperature,the nano-silver powders were prepared directly using silver nitrate as raw material,water as the reactive medium,polyvinylpyrrolidone(PVP) as protecting agent and ammonium formate as reducing agent. By means of EDS and TEM(transmission electron microscopy),the prepared silver particles were characterized. The various influencing factors in the process of preparation were also discussed. Results With the increasing concentration of AgNO3,the particle diameter of nano-silver changed obviously. When the concentration of silver nitrate was 0.25-0.30 mol/L,the size of product is the smallest. With the increasing concentration of reductant,the diameter of nano-silver decreased gradually. While at the concentration of 0.70 mol/L HCOOH,the average diameter of nano-silver is not more than 10 nm. Smaller and more well-distributed silver powder could be prepared at ratio of concentration of PVP to AgNO3 with the value of 1.5-1.0,at which PVP presented effective protection. Conclusions This method can prepare particle of nano-silver which revealed well dispersed and uniform size. The process is stable and reliable,easy to operate,high yields and suitable for industrial production.

Radiotherapy plays an important role in breast cancer management after mastectomy, breast reconstruction was much more accepted by patients after mastectomy. The impact of radiotherapy on breast reconstruction are commonly concerns by radiation oncologist, breast surgeon and plastic surgeon. This article reviewed the timing and method of reconstruction in patents who underwent breast reconstruction after mastectomy,and the negative impact of radiotherapy on cosmetic result. We also analysed the impact of reconstruction on radiation design and the most appropriate timing and method of reconstruction in different settings of radiotherapy.

In this paper the last study of the role of nitric oxide(NO) in the development of osteoarthritis is reported. The study of dependability of the content of NO in the inflamed tissue and development of osteoarthritis showed that NO had an important role in the damage of cartilage,and that the inhibition of excess release of NO could improve the repair of cartilage,and that the effective inhibitor of nitric oxide synthase might cure osteoarthritis.