Objective:To study the ethical attitude of infertility patients and the public towards the artificial insemination technology,with the aim of its better clinical application.Methods:A questionnaire among 220 infertility patients and 720 persons of different social walks,followed by a contrastive study of the results.Results:There is distinctive difference(P

We studied the function of connexin 43 (Cx43) gene in Xiao Meishan swine bone marrow mesenchymal stem cells (BMSCs) resulting from overexpression. Cx43 eukaryotic expression vector (pEGFP-Cx43) was constructed and transfected into BMSCs by nucleofector, after detecting the transfection efficiency; the expression of Cx43 was verified by RT-PCR, immunofluorescence and western blotting. Furthermore, we detected its cell cycle and apoptosis through flow cytometry. Our results show that pEGFP-Cx43 plasmid was successfully constructed, and green fluorescence in pEGFP-Cx43 transfected BMSCs was highly expressed with 60% transfection efficiency. In transgenic Xiao Meishan swines BMSCs, the expression level of Cx43 mRNA and protein were up-regulated. Meanwhile, the ability of cell proliferation was significantly increased, and the apoptosis rate was significantly reduced. Taken together, Cx43 overexpression could promote the proliferation of Xiao Meishan swine's BMSCs and markedly reduce their apoptosis, which provides evidence for in vivo research.
Animals ; Animals, Genetically Modified ; Apoptosis ; Cell Proliferation ; Connexin 43 ; metabolism ; Flow Cytometry ; Genetic Vectors ; Mesenchymal Stromal Cells ; metabolism ; Plasmids ; Swine ; genetics ; Transfection

Objectives To explore intraocular drug concentration changes and the pharmacokinetics after topically applied of bevacizumab with armexin A5-associated liposome on rabbit eyes.Methods A total of 105 healthy New Zealand white rabbits were selected and divided randomly into 3 groups (group A,B and C),and each group had 35 rats.Bevacizumab with annexin A5-associated liposome,bevacizumab liposome and bevacizumab were topically applied 50 μl respectively on right eyes of rabbits in group A,B and C,respectively.Aqueous,vitreous body and retina/choroid were obtained at 5,15,30 minutes and 1,2,4,8 hours and the free bevacizumab concentrations in these ocular tissues were measured by ELISA (enzyme linked immunosorbent assay).DAS 2.1.1 software was used to fit the pharmacokinetic parameters.Results The peak drug concentrations in aqueous humor of the eyes in group A,B,C were at 15 minutes after topical administration and the difference was statistically significant (F=301.061,P＜ 0.01).The peak drug concentrations in vitreous of the eyes in the group A,B,C were at 2 hours after topical administration and the difference was statistically significant (F=885.997,P＜ 0.01).The peak drug concentrations in retina/choroid of the eyes in the group A,B,C were at 1 hour after topical administration and the difference was statistically significant (F=644.908,P＜0.01).Least significant difference pair-wise test found that the drug concentrations in aqueous humor,vitreous and retina/choroid of group A was higher than that of the group B and C respectively (P＜ 0.05),while that of the group B and C had no significant different (P＞ 0.05).Pharmacokinetic fitting analysis found that the half-life (t1/2) of bevacizumab in aqueous humor were 1.14,1.29,1.29 hours,the distribution t1/2 were 1.40,1.50,1.42 hours and the eliminated t1/2 were 2.62,2.84,2.73 hours in vitreous,the distribution t1/2 were 2.61,2.99,2.70hours and the eliminated t％ were 2.61,2.99,2.70 hours in retina/choroid respectively for the 3 groups.Changes of bevacizumab concentration in aqueous humor of rabbit eyes for 3 groups was complied with one compartment model,and that in vitreous body and retina/choroid complied with two compartment model.Conclusions Topically applied annexin A5-associated liposome has higher ocular concentrations of bevacizumab than those of controls.Changes of bevacizumab concentration in aqueous humor of rabbit eyes was complied with one compartment model,and that in vitreous body and retina/choroid complied with two compartment model.

ObjectiveTo establish a method to induce heterotopic ossification (HO) after spinal cord injury. Methods10 New Zealand White rabbits underwent a complete transection of the thoracic (T10) spinal cord. Just after transection, the right hind limb of every rabbit was immobilized with a plaster support to keep the knee in extension and the hip unrestricted. The plaster was temporarily removed once a day (six times per week) to allow the knees passively mobilized at the maximum range for 5 min. Local swelling, local skin temperature and grade of ossification of the paraplegic limbs were observed. After 5 weeks, the rabbits were sacrificed, and the quadriceps muscles of the right hind limbs were removed for the histological examination. ResultsAfter 5-week immobilization and temporary passive mobilization, HO was successfully induced in all 10 rabbits. There was local skin temperature increase and local swelling in the right hind limbs. The histological changes were similar to those observed in clinical HO. Conclusion5-week immobilization and temporary passive mobilization approach may successfully induce HO, and it may be used to study the pathogenesis of HO after spinal cord injury.

Hot Temperature ; Humans ; Industry ; Occupational Exposure ; Occupational Health

Objective To explore the effect of compound Chinese medicine lotion in the preparation room of the Third Affiliated Hospital of Jinzhou Medical University on the patients with flat wart.Methods Confocal laser scanning microscopy and clinical diagnosis were used to collect 100 cases of flat warts from March 2013 to March 2015.The patients were randomly divided into the treatment group ( Chinese compound lotion) and the control group ( tretinoin cream) with 50 cases in each group.Self-made compound Chinese medicine lotion or Victoria A acid cream for 20 days, after the treatment, the curative effect and relapse rate of the two groups were compared.Results The total effective rate of the treatment group (94.0%) was significantly higher than the control group (76.0%), the difference was statistically significant (P<0.05).The relapse rate in the treatment group was 4.3%, significantly lower than that in the control group the rate was 28.9%, the difference was statistically significant (P<0.05).Conclusions Self-made Chinese compound lotion on flat wart patients have a good effect, and its curative effect on verruca plana is better than tretinoin.

Objective To evaluate the effect of lentinan polysaccharide (LPS) on Alzheimer's disease (AD) rats, and providing a new idea for prevention and treatment of Alzheimer's disease (AD).Methods 96 SPF rats were randomly divided into control group, model group, LPS low dose-treated group, LPS middle dose-treated group, LPS high dose-treated group and positive control group(piracetam treated), each had 16 rats.The model of AD was induced by injection of Aβ25-35(80 pmol/μL), rats in four treatment groups were treated with LPS (200 mg/kg), LPS (400 mg/kg), LPS (600 mg/kg) and piracetam(600 mg/kg) orally once a day for 60 days while control group and model group were given equal-dose saline.After treatment, the ability of navigation and memory were evaluated by water maze test (MWM), and then rats in all groups were sacrificed to obtain the hippocampus.HE staining was used to observe the histopathological changes, the expressions of TACE,Aβ,BACE1 and PP2A protein in hippocampus were detected by Western blot.Results Compared with the model group, high dose LPS could significantly improve the ability of learning and memory (P<0.01) and improve the ability of locating navigation (P<0.01).HE staining results showed that LPS treatment could repair the rat hippocampus injury induced by Aβ25-35 .Western blot analysis showed that the levels of Aβ, and BACE1 were down-regulated in LPS group compared with the model group, while the protein level of PP2A and TACE was up-regulated.Conclusion LPS has a protective effect on Aβ25 -35 induced AD model, and it is expected to be a strategy for treatment of AD .

Aim To investigate the effects of valsartan on activation of signal transducers and activators of transcription 1,3 in glomerular mesangial cells(GMCs) under high concentration of glucose.Methods we used high concentration glucose and valsartan to stimulate the cultured rat GMCs in vitro.The protein expressions of signal transducer and activatior of transcription 1,3(STAT1,STAT3),p-STAT1 and p-STAT3 were observed by Western blot.The protein synthesis of TGF-?_1,fibronectin and type IV collagen in the supernatants of the GMCs were detected by enzyme-linked immunoadsorbent assay(ELISA) and radioimmunoassay.TGF-?_1 mRNA was measured by reverse transcription and polymerase chain reaction(RT-PCR).Results Compared with low glucose control group,the expressions of p-STAT1,p-STAT3 and TGF?_1 mRNA were significantly increased in GMCs under high concentration glucose medium and there observed the high concentration of TGF-?_1,fibronectin and type IV collagen in the supernatants.The expression levels of p-STAT1,p-STAT3 and TGF-?_1 mRNA were significantly lower in the valsartan group than in those the high concentration glucose group.The concentration of TGF-?_1,fibronectin and type IV collagen in the supernatants in the valsartan group were lower than that in the high concentration glucose control group.Conclusion Valsartan can inhibit overproduction of TGF-?_1 and ECM proteins in GMCs under high concentration of glucose,partly by regulating the phosphorylation of STAT1 and STAT3.

Objective To observe the effect of finger-pressing combined with conventional rehabilitation therapy on the recovery of upper limb function after stroke.Methods A total of 60 cerebral stroke patients were randomly divided into an experimental group (n =30) and a control group (n =30).All patients were treated with conventional anti-symptomatic drugs but no anti-spasticity ones.The experimental group was given conventional rehabilitation and finger-pressing therapy,while the control group was given conventional rehabilitation only.Both groups were measured the motor function,using the upper-extremity portion of the Fugl-Meyer Scale,and the mean integrated electromyography (iEMG) output of biceps and flexor carpi radialis after the first finger-pressing treatment and 1 month later,so as to observe the immediate and continuous effects of finger-pressing therapy respectively.Results After the first session of finger-pressing therapy,the average Fugl-Meyer score(FMA) (12.63 ± 4.64) of the experimental group was significantly higher than in a pretest (12.13 ± 4.88) (P ＜ 0.05),while the iEMG of biceps (41.64 ± 9.22) and flexor carpi radialis (37.06 ± 7.02) were lower than before (P ＜ 0.01).One month after the treatment,compared with the control group,the average FMA (25.17 ± 5.93) and iEMG of biceps(34.42 ± 7.55) and flexor carpi radialis sEMG(30.63 ± 5.54) in the experimental group were significantly improved (P ＜ 0.01).Conclusions Finger-pressing therapy has significant and immediate effects in improving the upper extremity spasticity of stroke survivors.Combined with conventional rehabilitation therapy it can effectively reduce the upper extremity spasticity in stroke patients and significantly improve the upper extremity function.The combination is superior to conventional rehabilitation alone.

Objective To investigate the proliferation, immune phenotype and cytotoxicity on different cell lines of cytokine-induced killer (CIK) cells collected from healthy donors. Methods Peripheral blood mononuclear cells (PBMC) from healthy donors were induced to become CIK cells by adding cytokines including rhIL-2, rhIFN-γand CD3 McAb. The proliferation of CIK cells was tested by blood cell recording board. The CIK cells were analyzed on different time points by FACS. The cytotoxicity of CIK cells against different tumor cell lines, such as K562, BJAB, A549, MCF-7 and HepG2, was detected by MTT assays on day 13. Results CIK cells quickly proliferated from day 5, and expanded by 182-fold after 20-day culture. The immunophenotypes of CD3+, CD3+CD8+and CD3+CD56+were (97.83±1.03)%, (77.12±1.60)%and (27.58± 2.02)%. The percentages of CD3+, CD3+CD8+and CD3+CD56+increased noticeably (P＜0.01). According to the effector-tar-get ratio of 40∶1, the activity of CIK cells against tumor cells K562, BJAB, A549, MCF-7 and HepG2 were (88.89±7.22)%, (75.42±9.52)%, (63.19±5.67)%, (43.53±5.67)%and (42.63±7.69)%. The experiments showed that CIK cells possessed high-er antitumor cytotoxic activity. Conclusion CIK cells can be largely capacity cultured by adding cytokines in vitro. CIK cells were a highly efficient cytotoxic cell against tumors, and had clinical application potentials.