Objective To investigate the in vitro effect of low dosage of paclitaxel on normal murine bone marrow-derived dendritic cells(mDCs)and its role in reactivating tumor-pulsed DCs. Methods The concentration of paclitaxel which could induce 30% apoptosis of 3LL cell lines was figured out.mDCs were generated from murine bone marrow precursors.Cell culture insert system was used and four groups were divided as following: mDC,mDC+3LL,mDC+ low dose of paclitaxel,and mDC+3LL with 30% apoptosis induced by low dose of paclitaxel.The phenotypes,chemoattractive function to MIP1? and MIP-3?,and viability in activating allogeneic T cell proliferation of DCs in the four groups were analysed. Results Paclitaxel of 50 nmol/L could induce 30% apoptosis of 3LL,and had protective effects on DCs.It could stimulate the maturation of mDCs by up-regulating the phenotypes of CD11cCD80,CD11cCD86,CD11cCD40 and CD11cCDIab,and could enhance the chemoattractive function to chemokine MIP-3?.Compared with those cocultured with 3LL,DCs pulsed with apoptosis antigen of 3LL cell which was induced by 50 nmol/L paclitaxl up-regulated the phenotype of CD11cCD40,enhanced the the chemoattractive function to MIP1? and MIP-3?,and activated the proliferation of T cells. Conclusion Paclitaxel of 50 nmol/L can stimulate the maturation of DC,and can partially recover the phenotype and function of tumor-pulsed DC.

Adrenal Cortex Hormones ; therapeutic use ; Adrenergic beta-Agonists ; therapeutic use ; Anti-Asthmatic Agents ; therapeutic use ; Asthma ; drug therapy ; Humans ; Medication Adherence

Carcinoma in Situ ; pathology ; virology ; Carcinoma, Squamous Cell ; pathology ; virology ; Diagnosis, Differential ; Female ; Humans ; Paget Disease, Extramammary ; pathology ; virology ; Papillomavirus Infections ; Precancerous Conditions ; pathology ; virology ; Vulvar Neoplasms ; classification ; pathology ; virology ; Warts ; pathology ; virology

Using site-directed mutagenesis and DNA recombinant technology, GGC fragment was inserted into human IL-18 cDNA. The mutated IL-18 cDNA was constructed into plasmid pPIC9K, then transformed into Pichia pastoris GS115 and efficiently expressed. A Glycine residue was inserted into the recombinant IL-18 between Arg39 and Asp40 to form a RGD motif. The mutated IL-18 was termed IL-18-RGD. The protein was purified with Sephadex G-100. The cell culture of melanoma B16 showed that IL-18-RGD efficiently inhibited B16 tumor growth, IC50 = 8.10?mol/L, but the inhibitory effect of IL-18 was not detected. Both IL-18-RGD and IL-18 showed inhibitory activities on mice loaded B16 in vivo, the inhibitory efffct of IL-18-RGD was stronger than that of IL-18. The inhibitory activities of IL-18-RGD and IL-18 on bFGF induced angiogenesis on chorioallantoic membranes were detected. There was no differences between IL-18-RGD and wild IL-18 in the activity of inducing IFN-? in human PBMC.

Objective:To Study the effect of static magnetic field on the proliferation and differentiation of osteoblasts.Methods:In vitro cultured rat calvarial osteoblasts were seeded into 96-well culture plate and exposed to the different magnetic intensity field for 24,48 and 72 h respectively.MTT assay was applied to study the cell proliferation. ALP was measured by a microplate reader.Results:When the magnetic exposure time extended to 48 h or 72 h, the corresponding MTT value of osteoblasts with magnetic treatment of 40 mT or 62 mT increased obviously(P0.05). ALP activity increased after 24 h exposure to static magnetic field, the effect of static magnetic field intensity of 62 mT and 83 mT showed the strongest promotion effect(P

Objective To study the relationship of the collection efficiency and physical parameters,such as the height of exhaust hood,baffle,ventilation conditions of these parameters on the effect of control.Methods The computational fluid dynamics software FLUENT was used to form the model,and to maximize production in line with the actual operating conditions for physics experiments,to take air numerical simulation and physical model of re-testing the method of combining.Results Without the lagging conditions,the air flow system should be chosen 1 320 m~3/h,with the lagging conditions,the air flow system should be chosen 1 078 m~3/h.The system in a certain air volume,lower installation height could increase the average wind speed of breathing zone.At a certain suction cover installation height and air flow,the baffle could improve the collection efficiency.Without the baffle,the collection efficiency and control distance(dimensionless)showed a relation of cubic polynomial.Conclusion The physical parameters of suction on the hood may impact the collection efficiency at breathing zone measuring point.

Female ; Humans ; Infant ; Male ; Mucocutaneous Lymph Node Syndrome ; Retrospective Studies

Cough ; diagnosis ; Disease Management ; Humans

Objective Zika virus disease is an acute infectious disease caused by Zika virus transmitted through Aedes mosquitoes. To explore the therapeutic effect of integrated traditional Chinese and Western Medicine for Zika virus disease, the treatment process of the first imported case in China was reviewed. Methods The first imported Zika virus disease in China was admitted to Ganxian People's Hospital in Jiangxi Province on February 6th, 2016, and the patient received isolation treatment for 9 days and cured later. The effect of antiviral treatments including Xiyanping injection was evaluated based on clinical diagnosis and treatment process of the patient. Results A 34-year old male patient was admitted with chief complaint of fever for 9 days, orbital pain and itching rash for 4 days on February 6th, 2016. ① Epidemiological characteristics: the patient was bitted by mosquitoes during his business trip in Venezuela since January 1st, where Zika virus disease was spreading. On January 20th he had dizziness without fever, and the symptom disappeared after taking medicines without details. Paroxysmal dizziness, chills and mild fever without myalgia was experienced on January 28th. On February 3rd small red rash appeared in the neck, spreading to anterior part of chest, limbs and trunk, and the fever, fatigue, nausea was continued, and a new symptom of paroxysmal pain in back of ears and orbits appeared, during which he had not go to hospital. The symptoms relieved on February 4th. He returned to Ganxian County on February 5th, he had yellow stool 3 times with normal temperature, without abdominal pain, and red rash still appeared in the neck. He went to Ganxian People's Hospital on February 6th, 2016. ② Clinical manifestation: the vital signs showed a temperature of 36.8 ℃, a pulse rate of 80 bpm, a respiratory rate of 20 bpm, and a blood pressure of 110/70 mmHg (1 mmHg = 0.133 kPa). It was showed by physical examination that red rash appeared in the neck, and no superficial enlarged lymph nodes were found. Bilateral conjunctival congestion was obvious, physiological reflex existed and pathological reflex was not found. ③ Auxiliary lab test and examination: no abnormal finding were revealed throughout examination and laboratory tests, including routine blood test, liver function, renal function, serum myocardial enzyme, electrolyte, blood sugar, C-reactive protein (CRP), troponin I (TnI), and procalcitonin (PCT), except slight prolongation in activated partial thromboplastin time (APTT, 38.6 s) on February 6th; and slightly dense shadow in left lung in lung CT scan, considering inflammatory changes and slight emphysema (especially in the left lower lung) as well as bilateral renal calculus on February 8th. No significant abnormalities were found in electrocardiogram and B ultrasound test of liver, spleen, and pancreas. ④ Virus confirmation: Zika virus nucleic acid was positive reported by Jiangxi Province Center for Disease Control and Prevention (CDC) on February 7th and Chinese CDC on February 9th, respectively, though Dengue virus were negative reported by Ganzhou CDC on February 6th. Right after the first diagnosis, anyone who had been in close contact with the patient received medical monitoring. ⑤Treatment process: on February 6th, symptomatic treatment was prescribed since admitted into the infectious isolation wards and daily intravenous drip of Xiyanping injection 250 mg was prescribed for antiviral therapy. On February 7th, the patient had no fever, with occasional chills, neck rash was disappeared, orbital pain relieved and bilateral conjunctival hyperemia range was paler and narrowed, and his condition improved. Ibuprofen was administered for defervesce 3 times a day when his temperature reached to 37.5 ℃ at 16:00. On February 8th, the patient had no fever, times of chills was significantly reduced, without myalgia and rash, orbital pain and conjunctival hyperemia further recovered. On February 9th, bilateral eyes slightly tingling, mild conjunctival congestion, no fever chills or other discomfort was found. The chloramphenicol eye drops was prescribed for relieving sting pain with conjunctival congestion twice a day as recombinant human interferon alpha eye drops was out of store. The patient was comfortable from February 11th to February 13th. Blood and urine test for Zika were reported negative by the Chinese CDC and Jiangxi Province CDC. Because all the discharge criteria were satisfied, the patient was discharged on February 14th. Conclusions At present, there is no specific effective drug to prevent and treat Zika virus disease effectually. After receiving symptomatic treatment and antiviral treatments including Xiyanping injection, the patient's symptoms were relieved. Zika virus nucleic acid in blood and urine was negative. The patient was discharged. Combination of traditional Chinese medicine and Western medicine maybe a good method to prevent and treat Zika virus disease.

Objective To evaluate the efficacy of pleth variability index (PVI) in guiding volume therapy in the patients undergoing thoracoscopic surgery.Methods Forty patients of both sexes, aged 18-64 yr, with body mass index＜35 kg/m2 , of American Society of Anesthesiologists physical status I or Ⅱ ,scheduled for elective thoracoscopic lobectomy, were randomized into 2 groups (n =20 each) : control group (group C) and PVI group.During induction of anesthesia, multiple electrolyte solution was infused rapidly as a bolus of 250 ml, followed by a 2-8 ml · kg-1 · h-1 infusion.In group C, 6％ hydroxyethyl starch 130/0.4 and sodium chloride injection 50 ml and metaraminol 0.5 mg were administered to maintain mean arterial pressure ≥ 65 mmHg.In group PVI, 6％ hydroxyethyl starch 130/0.4 and sodium chloride injection 50 ml and metaraminol 0.5 mg were administered to maintain PVI ≤ 13％ and mean arterial pressure ≥ 65 mmHg.Immediately after the beginning of one-lung ventilation (T1) , immediately after the termination of one-lung ventilation (T2) and at 1 h after surgery (T3) , arterial oxygen saturation were recorded, and arterial blood samples were collected for blood gas analysis, and for determination of lactic acid concentrations.The blood creatinine concentrations were measured at 24 h before and after surgery.The fulid balance was recorded.Results The amount of colloid solution infused, total volume of fluid infused and lactic acid concentrations at T3were significantly lower in group C than in group PVI.There were no significant differences in the amount of crystralloid solution infused, urine volume, blood loss, arterial oxygen saturation at each time point, and blood creatinine concentrations at 24 h before and after surgery between the two groups.Conclusion PVI-guided volume therapy can not only maintain adequate blood volume and tissue perfusion, but also reduce the amount of fluid infused, and is helpful in mitigating lung water overload when used for the patients undergoing thoracoscopic surgery.