Child ; Humans ; Inflammation ; Neoplasms, Muscle Tissue ; Ureteral Neoplasms

Objective Comparing the effects of steam sterilization on cyclic fatigue of stainless steel files. Meth-ods Fifty instruments of 25# stainless steel K files were randomly divided into 5 groups, which include 10 in each group. Group 1 was the blank control group, group 2 to 5 were subjected to 1, 3, 4, 5 steam sterilization cycles, then the files were tested by a custom-made device to assess cyclic fatigue and the number of cycles of failure (NCF) was calculated. Microstruc-ture of each file’s fracture surface was analyzed by Scanning Electron microscope (SEM). Results NCF in the 5 groups were 4 345.2 ± 384.2,3 937.9 ± 645.4,3 812.9 ± 532.5,3 626.2 ± 380.0,3 625.9 ± 565.6 respectively, and the differences among 5 groups were significantly different(F=2.598, P<0.05). After 4 or 5 times of steam sterilization, cyclic fatigue de-creased if compared with that in control group (P<0.05). Fracture surface in group 1 and group 2 was tough dimple structure and large numbers of regular, deep dimples were distributed on the surface. You could also see micro cavities clearly formed by fracture;Fracture surface in group 4 was dimple structure in brittle intergranular morphology. It is characterized by the presence of thin brittle precipitates, clean and smooth crystal interface, and a great sense of polyhedral stereo. Conclusion After 4 times of steam sterilization, cyclic fatigue strength of 25# stainless steel K files declined, which possessed the poten-tial risk of fracture.

Objective To evaluated the role of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) in the diagnosis of thoracic tuberculosis.Methods The study was retrospective,from September 2009 to September 2012,38 patients who underwent EBUS-TBNA were finally diagnosed of thoracic tuberculosis,with enlarged hilar or mediastinal Iymph nodes on chest enhanced computed tomography(≥ 1.0 cm).Patients in whom EBUS TBNA was nondiagnostic subsequently underwent surgical biopsy.All the patients had a minimum of 6 months clinical and radiologic follow-up.Results EBUS-TBNA was performed on a total of 88 lymph node stations in 38 patients.Of the enlarged lymph nodes,60(68.18％) were located in the mediastinal region and the remaining 28 (31.82 ％) around the hilum or interlobar area.Of the 38 patients,EBUS-TBNA achieved definitive diagnosis in 34 patients(89.47％).EBUS was well tolerated by all of the patients with no complications.Conclusion EBUS-TBNA is a safe procedure with a high yield for the diagnoses of thoracic tuberculosis.

Acupuncture Points ; Hand ; anatomy & histology ; Hand Bones ; anatomy & histology ; Humans

Lactoferrin (Lf) is one of the food protein belonged to the innate immune system. Apart from its main biological function of binding and transport of iron ions, lactoferrin also has many other functions and properties such as antibacterial, antiviral, antiparasitic, catalytic, anti-cancer, anti-allergic and radioprotecting. Lf is usually used as additives of food and cosmetics. The research of lactoferrin has been increasingly reported, and the application of lactoferrin as a drug carrier has drawn extensive attention over the recent year. In this paper, researches of lactoferrin as drug carriers are classified and summarized in brain targeting, liver tumor targeting, lung tumor targeting and oral delivery systems according to their different characteristics.
Administration, Oral ; Brain ; Drug Carriers ; Humans ; Lactoferrin ; chemistry ; Neoplasms

Survey on research and development of Fructus Gardeniae in the recent 10 years. Gardenia yellow has been used for food colorent, medicine, feedingstuff and cosmetic. Garnedia blue has been used for developing another pigment with red and yellow. Fructus Gardeniae has been used in digestive system for cholecyst constracting and gall-stone eliminating, for declining peroxide on SAP mouse and increasing immune ability, for protecting liver against cancel, anti-acetylcholinic restraining on stomach enginery, in cardiovascular system it has been used for centrally anti-hypertension, preventing atheroma and thrombus, also Fructus Gardeniae has been used for anti-inflammation, treating parenchyma injure etc. Geniposide used for increasing production in agriculture has wider perspect.
Analgesics ; pharmacology ; Animals ; Anti-Inflammatory Agents, Non-Steroidal ; pharmacology ; Antihypertensive Agents ; pharmacology ; Bile ; secretion ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Food Coloring Agents ; toxicity ; Fruit ; chemistry ; Gardenia ; chemistry ; toxicity ; Gastric Acid ; secretion ; Humans ; Lipid Peroxidation ; drug effects ; Plant Extracts ; isolation & purification ; toxicity ; Plants, Medicinal ; chemistry

Abstract: Objective　In order to explore the application prospects of the phenyl pyrazole insecticide fipronil for mosquito control and identify potential target genes involved in the resistance of Aedes aegypti to fipronil, and lay the foundation for an in-depth study of the resistance mechanism of Aedes aegypti to fipronil. Methods　Using Aedes aegypti sensitive strains as experimental materials, Aedes aegypti larvae were treated with fipronil, and the differences in gene expression of Aedes aegypti larvae before and after drug administration were compared at the transcriptome level using transcriptome sequencing combined with bioinformatics analysis, and the differential genes were analyzed. Results　A total of 757 differentially expressed genes were identified between the fipronil-treated group and control group, including 217 and 540 up- and down-regulated genes, respectively. Among these, the expression of glutamate-gated chloride channel (GluCls) genes varied significantly before and after treatment. Gene ontology analysis revealed that differentially expressed genes were enriched in catalytic activity, binding, metabolic processes, and membrane-related functions, while KEGG pathway analysis indicated enrichment in biosynthesis, metabolism, and life regulation processes, while the glutathione metabolic pathway was enriched in 15 differentially expressed genes. Conclusions The transcriptome results revealed that GST gene expression was significantly upregulated in fipronil-treated Aedes aegypti larvae, indicating that GST gene is involved in the development of fipronil resistance in Aedes aegypti larvae. In addition, GluCls gene expression was also significantly different before and after treatment, suggesting that GluCls migh be a potential target receptor for fipronil resistance in Aedes aegypti. As GluCls is an ideal target receptor found only in invertebrates, this discovery provides a reference and basis for further exploration of the toxicological mechanism of fipronil on Aedes aegypti.

Objective To investigate the medical assistance to inpatients from low-income families for solving their difficulties in seeing doctors and affordability.Methods Random sampling was made to five ongoing medical assistance projects in the hospital for statistics and analysis of the data so collected.Results Medical expenses of such inpatients are beyond their affordability.Despite the coverage of their basic medical insurance,the reimbursement rate is too low to alleviate their financial burden.Conclusion A“4-party payment”model is recommended,combining the government support for basic medical insurance,social welfare assistance,philanthropic assistance and that paid by the inpatients.This model is expected to effectively alleviate the financial burden of such inpatients.

Objective To investigate the effect of transcatheter bladder arterial chemoembolization on microvessel density(MVD)change in bladder cancer. Methods The MVD count of bladder cancer tissue of 30 patients before and after chemoembolization were examined by SP immunohistochemical staining.Cancer tissues were examined pathology after chemoembolization.All the cases were followed up for 12 to 36 months(mean 24.6 months),the 3 years survival rate was evaluated clinically. Results MVD counts were 69.8±3.4 and 56.4±3.3 before and after therapy respectively(P<0.05).Cancer tissues were severely damaged ultramicroscopically after interventional chemotherapy.The recurrent rate was 16.67%in 30 cases. Conclusions The chemoembolization could decrease MVD,improve survival rate and reduce the recurrence rate.

Objective To compare and analyze different factors that influence hypertension between subjects with and without gout, and to recognize and understand them further. Methods A total of 7395 patients ( 6935 males and 460 females) from the gout clinic of Affiliated Hospital of Qingdao University between May 2009 and January 2016 were chosen as gout group, while 8379 people without gout (7858 males and 521 females) were served as control group. The height, weight, waist circumference, hip circumference, blood pressure, fasting plasma glucose ( FPG) , triglyceride(TG), cholesterol(TC), blood urea nitrogen (BUN), creatinine(Cr), and uric acid (UA) of both groups were monitored. Clinical and biochemical differences of the two groups were analyzed. The morbidity rate of hypertension in the two groups was also compared. According to different criteria, the subjects were divided into several subgroups. The data were analyzed mainly by Empower statistical software. Results The risk ratio of hypertension in gout group was 63. 25%, and it was higher than that in control group(49. 19%,x2=316. 25,P<0. 01). The risk ratio of hypertension in gout group was 1. 173 times higher than that in control group. After adjusting UA, it would drop to 1. 065 times, but the difference still remained significant. In groups with diabetes, hyperlipidemia, hypercholesterolemia, obesity, the risk ratio of hypertension increased by 13. 7%, 15. 3%, 21. 8%, and 23. 6% respectively, in gout group. FPG, TG, TC, BMI, and WHR were all associated with HP in both gout and normal groups, but Cr was associated with HP in gout group only(OR=1. 396, 95%CI 1. 197-1. 629). Age had different saturation effects in two groups. Conclusion The factors influence hypertension differently in patients with and without gout, especially those of gout itself and creatinine. The precision medicine should be applied.