Virus infection is a cause of respiratory tract infections and predisposes the patients to secondary bacterial infections. With the graying” of the population and the increase of organ transplantation, immunocompromised hosts (ICH) and the rate of human immunodeficiency virus (HIV) infection as well as the emergence of such new pathogens as Hantavirus and Ebola virus in recent years, the morbidity of respiratory tract infections is growing high. There come the new challenges in the management of the respiratory tract infections. This paper is to introduce the application of antiviral drugs in the treatment of respiratory tract infections and discuss about the methodology of the administration of these drugs.

Objective To isolate and culture the neural stem cells (NSCs) from the cerebral cortex of newborn rats, and investigate the cell-replace responses of the NSCs transplanted into the sibling rats with focal cerebral cortex ischemic lesion. Methods The serum-free medium DMEM/F12 (1∶1) containing basic fibroblast growth factor (bFGF or FGF2) and epidermal growth factor (EGF) was used to culture the neural stem cell spheres. The NSCs were identified by detecting the neural stem cell marker nestin with enzyme immune assay and inducing neural stem cell spheres to differentiation. The NSCs which would be used in the transplantation experiment were labeled by BrdU incorporation when cultured in vitro. The focal ischemic models were made by opening the skulls and removing the cerebral menings of 4-day-old rats to stop the blood supply for the neopallium. The BrdU-labeled NSCs were transplanted into the cerebral lesion boundary zones of the focal ischemic sibling rat models. The experiment rats were divided into lesion-transplantation group, lesion-control group and sham-operation-control group. Recipients were killed and the brains were examined by detecting the BrdU-labeled cells with enzyme immunohistochemistry at 4,7,14,30 days postgrafting, indicating the grafts living and migration in the host. Results The neural stem cell spheres, which floated and grew in medium, expressed nestin, as well as gave rise to neurons and astrocytes, could be obtained through culturing the cells derived from the cerebral cortex of newborn rats in vitro for a week. In the transplantation of the NSCs, the grafts were easy to migrate along the boundary zones of the focal ischemic lesions, and promoted the restore of the tissue structures in the damaged areas, the damage recovered well through the cell-replace responses. The BrdU-labeled positive cells in the lesion areas were full of the visual fields under microscope, the greatest density of the positive cells were focused in the granular layer of the injured cerebral cortex and not found in remote sites from the lesion. The number of BrdU-labeled cells gradually decreased in the brains of the sham-operation-control rats, only a few positive cells were found when examined at 14 days postgrafting, significantly less than that in the lesion-transplantation rats. Conclusions NSCs exist in the cerebral cortex of newborn rats. The ischemia can promote proliferation and graft of NSCs. The grafted NSCs play an important role in the recovery of focal cerebral cortex ischemic lesion.

Objective To investigate the clinical efficacy and safety of albumin bound paclitaxel in patients with advanced cervical cancer, and to provide reference for clinical practice. Methods The hospital treated 47 cases of advanced cervical cancer patients as the observation object, from May 2015 to January 2017, the computer randomly divided into the control group and the experimental group by computer, the control group of 23 cases of advanced cervical cancer patients from time with paclitaxel chemotherapy, 24 cases of advanced cervical cancer patients were treated with albumin bound paclitaxel chemotherapy, observed patients with advanced cervical cancer after treatment of the two groups the maximum diameter of the tumor, relieve symptoms, efficacy, quality of life score, the incidence of adverse reactions were compared. Results The two groups of patients with advanced cervical cancer after treatment, there are significant differences in the observation index, statistical significance (P<0.05), in which the short-term efficacy of the experimental group is higher than the short-term efficacy of the control group by 31.52％. Conclusion For patients with advanced cervical cancer, the implementation of albumin binding paclitaxel chemotherapy can effectively improve the efficacy of the treatment of patients, high safety, worthy of clinical treatment.

Objective To compare the inhibition effect of budesonide suspension and dexamethasone on the rats′ pneumonic anaphylacticitis and serum IL-5,and study the effect mechanism in treatment of asthma with glucocorticoids on systemic administration and with budesonide suspension.Methods Twenty-six health wistar rats were randomly divided into normal group,asthmatic group,budesonide suspension group and dexamethasone group.Asthma models were sensitized with egg albumin.Before sensitized,budesonide suspension group were administered inhalation of budesonide suspension,and dexamethasone group were administered abdominal injection of dexamethasone.The level of IL-5 was measured with enzyme linked immunosorbent assay(ELISA) reagent box,lung was eviscera-(ted after collecting) blood,pathological slice was made.Results The rats′ pathological changes of lung and bronchus were significant between asthma group and other groups,while there were no significant difference between budesonide suspension group and dexamethasone group,but both of two groups showed slight difference with normal group.Compared with normal group,the level of serum IL-5 in asthma group raised obviously,and there was significant difference(P0.05).Conclusions The treatment of inhalation of budesonide suspension can inhibit rats′ pneumonic anaphylacticitis,ameliorate rat anaphylactic asthma symptom.

Objective To study the correlation between postoperative tumor recurrence and VEGF expression in preoperative biopsy specimens of early gastric carcinoma together with p53 gene abnormality and tumor cell proliferation. Methods Sixty-eight endoscopically biopsied specimens obtained preoperativelly from patients with early gastric carcinoma were studied immunohistochemically. Date was processed by computer image analysis system. Result The rate of VEGF positivity was significantly higher in patients (n=5) with postoperative tumor recurrence than in those (n=63) without (5/5 vs. 14/63, P

Adult ; Anemia, Hemolytic ; chemically induced ; Female ; Humans ; Pancreatitis ; chemically induced ; Pesticides ; poisoning

Objective:To compare the models of guinea pig allergic rhinitis induced by different allergens. Methods: Ovalbumin (OVA), 2,4-tolylene diisocyanate (TDI) and alternariaalternata was respectively used as the allergens to establish the model of guinea pigs allergic rhinitis. The conformity of the models and human allergic rhinitis was studied through the behavioral indices, such as the times of nose itches, nasal discharge flow, histological properties and serum HA and IgE indices. Results:The times of sneezing and scratching nose, serum HA and IgE in OVA group was significantly different from those in the control group (P<0. 001 or P<0. 01). Conclusion:The models of allergic rhinitis induced by OVA are the same as allergic rhinitis in typical symptoms and pathological changes.

0.05) . No significant differences were observed between the expansion folds of hNSC derived from various fetal brain samples when cultured under the same conditions. LIF played great roles on cell proliferation,in LIF + groups, hNSC cell number increased ranging from 4 000-8 400 folds, no cell differentiation occurred; and in LIF" groups,only 43 to 96 folds.The differentiation phenomenons were watched when cultured more than two months. In the course of cell culturing, observed that the effects of LIF on hNSC expansion were obviously demonstrated 50-60 days after inoculation.The number of neurons and astrocytes differentiated from the cultured hNSC were respectively identified by means of Immuno-cytochemical fluorescent assay, and the percentages of neurons(as a proportion of neuron and astrocyte number) were calculated,which were ranging from 12% to 83% in LIF+ cultures, significantly higher than 8% to 23% in LIF- ones(P

Objective To explore curative effect of Xiyanping and vidarabine in treatment for children with viral encephalitis and its impact on T cells subgroup.Methods Methods In June 2012~October 2014, randomly selected 106 cases of children patients with viral encephalitis, as the research object.Randomized divided into observation group (n=53) cases, control group(n=53).Both two group were performed routine therapy, and then control group was given Xiyanping treatment, observation group was given Xiyanping combined with vidarabine treatment.1 continuous week treatment, compared two groups of T cell subgroup number and symptoms disappear time.Results In the two groups after treatment of T cell subgroup CD3 +, CD4 +,CD8 +was significant increase in the number of observation group increased number was significantly higher than the control group,and statistically significant differences ( P<0.05 ) .The observation group’s antifebrile time ( 2.5 ±1.1 ) d; headache, vomiting disappear time ( 3.6 ±2.2 ) d;disturbance of consciousness disappear time (2.6 ±1.3) d and length of hospital stay (9.3 ±2.4) d were significantly lower than the control group (4.7 ±2.8) d, (6.5 ±2.3)d, (4.3 ±2.2) d, (14.2 ±3.6) d, which were statistically significant differences (P<0.05).Observation group’s curative effect for instituting accounted for 73.58%, good rate 92.45%, were significantly higher than the control group 52.83%, 77.36%.which were statistically significant differences (P<0.05).The complication rate of observation group was 16.98%, mortality was 0%,were significantly lower than that of 33.96%, 9.43% of the control group;Cure rate of observation group (90.57%) was significantly higher than that of 49.06% of control group. Observation group severe sequela incidence 11.32% was significantly lower than that of 39.62% of control group and statistically significant differences (P<0.05).Conclusion Xiyangping combined with vidarabine in treatment for children with infantile viral encephalitis can significantly increase the number of T cell subgroup, improve immune function in children with, and curative effect is remarkable and high security.

Objective To evaluate the curative effects and safty of contra-aperture dissection and skin bridge preservation in the treatment of low transphincteric perianal fistula.Methods Sixty subjects of low transphincteric perianal fistula were randomly divided into two groups.Thirty cases of treatment group were treated by contra-aperture dissection and skin bridge preservation,and 30 cases of control group were treated by anal fistulectomy.On the second,seventh and fourteenth day after operation,the postoperative pain,exudate and fever were recorded and scored.The curative time was observed.Anorectal dynamic changes were compared simultaneously to evaluate the curative effects and safety of contra-aperture dissection and skin bridge preservation.Results The scores of pain and exudate were significantly different between the treatment and the control group(P＜0.01).The wound-healing time was shorter in the treatment group than that in the control group((27.37±8.93) d vs.(32.73±9.45) d,P=0.000).There were significant differences in the anal resting pressure,anal maximal contraction pressure and active systolic pressure between the two groups (t =13.12,10.21,12.10;P＜0.01).There was no significant difference of total effect between the two groups(100％ and 93.3％;x2 =2.07,P＞0.05).Conclusion Contra-aperture dissection and skin bridge preservation can reduce postoperative pain,exudate and fever,shorten wound-healing time and protect anal functions in the treatment of low transphincteric perianal fistula.