Animals ; Cell Cycle ; Doxorubicin ; pharmacology ; Drug Resistance, Multiple ; Humans ; Hyperbaric Oxygenation ; K562 Cells ; Mice ; Mice, Nude ; Xenograft Model Antitumor Assays

Objective: To explore and obtain the isolation and culture methods of the highly purified primary rat brain microvascular endothelial cells (BMECs). Methods: The brains of 10 3-week-old Wistar rats were harvested by decapitation, removing the white matter and mincing into approximately 1 mm3. A highly purified brain microvascular fragments were obtained through enzymatic digestion twice, 20% bovine serum albumin (BSA) and 33% continuous Percoll density gradient centrifugation. They were incubated into gelatin-coated 35 mm dish plates and the endothelial medium containing 4 μg/ml puromycins was added. The medium was renewed after 2 days. The endothelial cell growth and its morphology were observed using an inverted microscope. The expression of BMECs markers factor VIII-related antigen (vWF) was detected by immunocytoehemical method and was identified. Results: The endothelial cells grew out around the adherent brain microvascular fragments after culturing for 24 hours, and the cells were spindle-shaped. A fusion was formed after 5 to 6 days. BMECs after the fusion showed a typical "cobblestone-like" appearance. Immunocytochemical analysis showed the vWF expression of BMECs was positive, while the glial fibrillary protein (GFAP) expression was negative. The purity of BMVECs reached more than 96%. Conclusion: This method may successfully obtain the highly purified rat primary BMECs.

Congenital Abnormalities ; Encephalocele ; Humans ; Nose Diseases ; congenital

Animals ; Antineoplastic Agents ; therapeutic use ; Gene Silencing ; Genetic Therapy ; methods ; Humans ; MicroRNAs ; antagonists & inhibitors ; therapeutic use ; Neoplasms ; genetics ; therapy ; RNA Interference ; physiology ; RNA, Small Interfering ; antagonists & inhibitors ; therapeutic use ; RNA-Induced Silencing Complex ; metabolism

Humans ; Magnetic Resonance Imaging ; Neurosurgery ; trends

Traditional Chinese medicine (TCM) emphasizes treatment based on syndrome differentiation, which em-bodies the concept of individualized diagnosis and dynamic treatment on a holistic view. RCT was frequently used in TCM clinical study. However, it cannot reflect the concept of treatment based on syndrome differentiation. The use of adaptive treatment strategies (ATS) in clinical research can adjust therapy in patients according to the change of disease, so it can reflect personalized medicine and dynamic treatment. From this perspective, the process of treat-ment based on syndrome differentiation was a process of adaptive treatment decision. So the method for developing ATS can effectively evaluate the efficacy of different treatment strategies in TCM clinical study. ATS had been used in some clinical studies from published literatures abroad. However, the use of ATS in domestic clinical research was seldom been reported. This paper gave an outline of the concept of ATS. In addition, this paper focused on three methods which can take the delayed effects of current treatment action into consideration and can compare the over-all effect of different ATS. It was hoped to lay foundation for future scientific research of TCM in the implementation of SMART and provide a new idea.

ObjectiveTo evaluate the clinical efficiency of 0.1％ tacrolimus ointment combined with paroxetine in patients with neurodermatitis associated with insomnia.MethodsTotally,74 patients suffering from neurodermatitis and insomnia were consecutively enrolled in this study,and randomly assigned into the combination group and control group according to their number(odd or even).Both groups were given topical 0.1％ tacrolimus ointment twice a day,and the combination group was additionally given oral paroxetine 10 mg once a day,for 8 weeks.The outcome parameters included main symptoms of neurodermatitis and Pittsburgh sleep quality index(PSQI) score.ResultsNo significant difference was observed in the cure rate (54.3％(19/35) vs.53.1％ (17/32),P＞ 0.05) or response rate (82.9％ (29/35) vs.81.3％ (26/32),P＞ 0.05),between the combination group and control group.PSQI score was significantly lower in the combination group than in the control group after 8 weeks of treatment(P ＜ 0.05).ConclusionsThe 0.1％ tacrolimus ointment can be used to treat neurodermatitis safely.Antianxiety treatment can reduce the recurrence of neurodermatitis associated with insomnia,and improve the quality of sleep in patients.

Objective To investigate the changes in hydrogen sulfide(H_2S) level in plasma and myocardial tissues of doxorubicin-induced heart failure rats,and to study the role of H_2S in the development of doxorubicin-induced heart failure.Methods Male Wistar rats were randomly divided into 2 groups as follows:the doxorubicin group(n=12),in which 2.5 mg/kg of doxorubicin was injected intraperitoneal once a week for 10 weeks(total dose of 25 mg/kg);the control group(n=9),in which an(equivalent) volume of physiological saline was administered weekly for a total of 10 weeks.The observation of behavior was taken at the same time.Hemodynamic and echocardiographic measurements were obtained 10 weeks after treatment.Meanwhile,H_2S concentrations in serum and myocardial tissues were evaluated by modified sulfide electrode method.The changes of H_2S level between 2 groups were analyzed.Results The rats treated with doxorubicin showed inanimate behavior,decrease of the body temperature,activities and food intake,faster breathing,significant loss of weight,the cumulative mortality was 33%.Left ventricular systolic pressure(LVSP),difference of left ventricular pressure[△LVP=LVSP-left ventricular diastolic pressure(LVDP)] and left ventricular peak rate of contraction(+LV dp/dtmax),left ventricular peak rate of relaxation(-LV dp/dtmax)were significantly reduced in the group of doxorubicin rats(P

Exhaled gaseous signal molecules such as nitric oxide(NO),carbon monoxide(CO) and hydrogen sulfide(H2S) can be measured with a non-invasive technique.The fraction of NO level in exhaled gaseous of patients with airway inflammatory illness(such as bronchial asthma) significantly increases.No in exhaled gaseous is one of the markers in the diagnosis of asthma,and it is also a marker of anti-inflammatory response for patients with asthma.The fraction of CO level in exhaled gaseous of patients with bronchial asthma is also si-gnificantly elevated.Both NO and CO in exhaled gaseous in other airway inflammatory illness,such as chronic obstructive pulmonary disease,chronic bronchitis and cystic fibrosis are also evidently changed.Measuring exhaled gaseous signal molecules can provide important basis for the diagnosis and treatment of airway inflammatory illness.

To analyze the reasons for the formation of constipation,the causes,clinical manifestations,surgical indications and surgical treatment were analyzed,focusing on slow transit constipation,outlet obstruction constipation and mixed constipation.Grasping surgery indications is stressed in surgical treatment of constipation.Only appropriate procedure can obtain satisfactory results.