At present, oncology medical student in our country has many communication problems, such as communication awareness is not strong,the lack of communication,communication is not enough self-confidence and other issues.To improve the communication ability between doctors and patients for the oncology professional medical students:it is the necessary premise for correct implementation of diagnosis and treatment, an effective way to reduce medical disputes, adapt to the demand of the development of higher medical education.And pointed out the effective ways to improve the ability of doctor-patient communication:to set up the doctor-patient communi-cation and tumor department before the internship training course;establishlisten with your heart and professional guidancemode;with teacher actively guiding; learn to empathymode; adhere to the concept of taking pa-tients as the center.

Objective This study assesses the influence of rizatriptan on calcitonin gene-related peptide (CGRP),proenkephalin (PENK) and cholecystokinin (CCK) mRNA expressions in the trigeminal ganglia of a rat migraine model and investigates the possible mechanisms by which triptans treat migraine.Methods A total of 24 rats were randomly divided into four groups:normal control group (A),migraine model group(B),rizatriptan control group (C) and rizatriptan treatment group(D).Groups C and D were intragastrically perfused with rizatriptan,1 mg/kg per day.After 7 days,nitroglycerin was subcutaneously injected into the buttocks of the groups B and D to induce migraine.Two hours after nitroglycerin injection,the trigeminal ganglia was isolated.CGRP,PENK and CCK mRNA expressions in the trigeminal ganglia were determined using SYBR Green Ⅰ real-time quantitative PCR.Results The copy number of CGRP mRNA (× 107) in 200 ng total RNA of each group was 0.05 ±0.01,1.30 ±0.52,0.23 ±0.12,0.43 ±0.33 ; The copy number of PENK mRNA (× 103) in 200 ng total RNA of each group was 3.30 ± 1.65,0.34 ±0.14,3.91 ± 2.44,0.71 ± 0.13.The copy number of CGRP mRNA in the trigeminal ganglia of group B was significantly higher than that of group A (q =7.854,P ＜ 0.05) ; CGRP mRNA expressions were significantly lower in the trigeminal ganglia of rats in group D compared with group B (q =5.458,P ＜0.05).Compared with group A,PENK mRNA expressions in the trigeminal ganglia of rats were significantly lower in group B (q =4.478,P ＜ 0.05).PENK mRNA expressions were significantly higher in trigeminal ganglia of rats in group C compared with group D (q =4.838,P ＜ 0.05).CCK mRNA expression in trigeminal ganglia of rats was similar among groups.Conelusions Rizatriptan can decrease the expressions of CGRP in the trigeminal ganglia of the migraine rats and exhibits neurogenic inflammation triggered by CGRP.PENK expressions decrease in the trigeminal ganglia of the migraine rats,weaken the analgesic effects of enkephalin.

OBJECTIVETo study the Cupric ion release characteristics of different copper raw materials in intrauterine device in vitro by ICP. Reveal the relationship between purity and shape of Cu-IUD copper and copper ion release.

METHODSAccording to a certain proportion, the copper raw materials were 100 times diluted into the simulated uterine solution at 37 +/- 0.5 degrees C. Replaced medium at certain time points and collected soaking liquid. Using ICP analyzed the concentration of copper ion released.

RESULTSThe largest daily release of copper ions was in the first 7 days. There was no statistically significant difference between the copper ion release amount of 99.99% and 99.95% purity copper wire (P > 0.05). The release of copper ion of the copper wire was far greater than that of the copper pipe in early stage (P < 0.01). The release amount decreased and stabilized at 56 day.

CONCLUSIONRelease characteristics of copper ion could effectively analysis by ICP. And in the same area, the release amount of copper ions of copper wire was greater than that of copper pipe.

Objective To compare the differences in responsive ability and oxidative stress damage between type 2 diabetic rats and normal rats under acute sepsis associated with stress hyperglycemia.Methods GK rats with type 2 diabetes and Wistar rats were established critical ill models of sepsis by intraperitoneal injection of 5 mg/kg lipopolysaccharide(LPS).Before and after LPS injection,serum levels of proinflammatory cytokines tumor necrosis factor α (TNF-α),interleukin (IL)-1β3,and IL-6,and anti-inflammatory cytokine IL-10 were determined.Malondialdehyde (MDA) and total antioxidative capacity (T-AOC) levels in serum and tissues (lung,liver,kidney,heart) were measured by colorimetric determination.Results Before LPS injection,serum levels of TNF-α,IL-6,and IL-10 in GK rats were higher than those of Wistar rats.The serum levels of TNF-α,IL-6,and IL-10 after LPS injection were raised in both GK rats and Wistar rats (all P＜0.05).At baseline,serum MDA level of GK rats was higher than that of Wistar group [(25.76 vs 12.71) μmol/L,P＜0.05],while T-AOC level were lower [(0.60 vs 2.8) U/ml,P＜0.05].One hour after LPS injection,the serum MDA level in two kinds of rats significantly increased compared with those of their baseline levels [(32.30 and 20.19) μmol/L,both P＜0.05],while their serum T-AOC level decreased [(0.20 and 2.08) U/ml,P＜0.05]).There were no signigicant differences in the change trend of serum MDA and T-AOC between the two kinds of rats.MDA and T-AOC levels in tissues had no significant difference before and after LPS injection in GK and Wistar rats (P＞0.05).Conclusions The rats with type 2 diabetes had lowered level of proinflammatory factors and raised level of anti-inflammatory factors under acute sepsis,presenting better tolerance and lowered probability of inflammatory diffusion compared with normal rats.

Objective To explore the expression levels of microRNA(miR)-34a in hippocampus of temporal lobe epilepsy rats and the effect of miR-34a on its target signaling pathway Notch1.Methods Rats were divided randomly into experiment group (n=40) and control group (n=40) by adopting random number table method.The status epilepticus model and the temporal lobe epilepsy model were induced by using lithium-pilocarpine for experiment group.The control group rats received an injection of an equal amount of 9 g/L saline as instead of pilocarpine.Racine grading was performed at 24 hours,day 3,day 7,day 15,and 1 month after modeling to evaluate the behavior.Real-time fluorescent quantitative polymerase chain reaction was used to test the mRNA expressions of miR-34a and Notch1.Western blot was performed to explore the protein expression of Notch1.Results The expression levels of miR-34a at post-status epilepticus in 24 hours,day 3,day 7,day 15 were 2.55±0.29,2.11±0.17,1.68±0.49 and 1.84±0.42,respectively,which showed statistically significant difference compared with the control group (1.00±0.00) (t=-1.55,-1.11,-0.68,-0.84,all P<0.05).The expression levels of Notch1 mRNA at post-status epilepticus in 24 hours,day 3,day 7,day 15,1 month were 1.44±0.31,1.27±0.13,1.52±0.28,0.91±0.33,and 0.80±0.09 respectively.There were significant differences at 24 hours,day 7 in Notch1 mRNA expression (t=-0.44,-0.52,all P<0.05) compared with the control group(1.00±0.00).The expression level of Notch1 mRNA on day 15 was significantly lower than 24 hours and day 7 (t=-0.54,-0.62,all P<0.05),and the expression in 1 month was significantly lower than in 24 hours,or day 3 and day 7 (t=-0.64,-0.46,-0.72,all P<0.05).The expression levels of Notch1 protein at post-status epilepticus 24 hours,day 3,day 7,day 15,1 month were 0.78±0.09,0.57±0.13,0.55±0.16,0.42±0.13,and 0.33±0.09,respectively.There was significantly up-regulated at 24 hours of Notch1 protein expression compared with control group (0.51±0.15)(t=-0.20,P<0.05);and the expression level at day 15 were significantly lower than 24 hours (t=-0.26,P<0.05),while the expression in 1 month was significantly lower than in 24 hours and on day 3 (t=-0.36,-0.24,all P<0.05).Conclusion miR-34a is significantly up-regulated in the post-status epilepticus rat hippocampus,and it may contribute to temporal lobe epilepsy by activating Notch1 signaling pathway.

Objective To observe the influence of rizatriptan on the behavior and pain-related cytokines in peripheral blood of the migraine model rats, and to investigate the theraputic effect of rizatriptan on migraine.Methods A total of 24 rats were randomly divided into:control group,migraine group,rizatriptan control group and rizatriptan treatment group.The rats in rizatriptan control and rizatriptan treatment groups were intragastrically perfused with rizatriptan,1 mg·kg-1 per day (according to the adult daily dose),and the rats in control and migraine groups were perfused with normal saline,1 mL per day. After 7 d, nitroglycerin was subcutaneously inj ected into the buttocks of the rats in rizatriptan treatment and migraine groups to induce migraine.Normal saline was injected into the rats in control and rizatriptan control groups.At 60-90 min following nitroglycerin injection,the total number of behavioral symptoms was measured.The serum calcitonin gene-related peptide(CGRP),5-hydroxytryptamine (5-HT ), interleukin-1β(IL-1β), and tumor necrosis factor-α(TNF-α) levels were determined using ELISA. Results Compared with migraine group, the behavioral score of the rats in rizatriptan treatment group was significantly decreased (P<0.05).The serum CGRP level of the rats in migraine group was significantly higher than that in control group (P<0.05).Compared with control group,the serum 5-HT level of the rats in and migraine group was decreased, but there was no significant differece (P>0.05 );the serum 5-HT level in rizatriptan control group was significantly increased(P<0.05).The serum 5-HT level of the rats in rizatriptan treatment group was significantly increased compared with migraine group (P<0.05).The serum IL-1βand TNF-αlevels of the rats in varions groups had no significant differences (P>0.05).Conclusion Rizatriptan can relieve the behavior symptoms in nitroglycerin-induced migraine model rats, increase the serum 5-HT level, improve the vasomotor disturbance,and relieve the angiectasis.

Objective To analyze the semen quality in the outpatients from 3 male infertile clinics of Foshan city.Methods The semen from 1 865 outpatients with male infertility was detected and analyzed routinely by the CASA technology in strict accordance with the WHO operation technical specifications.The outpatients were divided into the normal group,mild,moderate and severe as-thenospermia groups according to the sperm vitality.Results There were 524 (28.1%)cases of abnormal sperm concentration,826 (44.3%)cases of abnormal sperm viability,985 (52.8%)cases of abnormal sperm motility,713 cases (38.2%)of teratosperm and 652 (35.0%)cases of leukocytospermia in all outpatients;the motion parameters were decreased along with the decrease of activity in each group,in which,the 6 indicators of VSL,VAP,VCL,LIN,STR and WOB were significantly lower than those in the normal activity group with statistical differences(P <0.05),furthermore,the sperm vitality had staitstcally significant differences among the mild,moderate and severe asthenospermia groups (P <0.05).Conclusion In the routine parameter indicators,the sort order of the percentage of abnormal results in turn were sperm motility、sperm viability、sperm deformity rate、semen WBC、sperm concentra-tion、semen liquefaction time、semen pH.With reduced sperm motility,the sperm motion parameters of VSL,VCL,VAP,LIN,STR and WOB were decreased,the results of each group were significantly lowered (P <0.05).

BACKGROUND:Epithelial cel s are commonly used as the seed cel in tissue engineering;however, there is stil a lack of an effective in vivo noninvasive trace technology. OBJECTIVE:To investigate the feasibility of labeling canine oral epithelial cel s with ultrasmal superparamagnetie iron oxide (USPIO) and magnetic resonance imaging (MRI) in vitro. METHODS:Oral epithelial cel s from beagles were primary cultured, and then labeled by 0.75 mg/L poly-L-lysine combined with USPIO (0, 5, 10, 25, 50 and 100 mg/L), respectively. To determine the optimal dosage, the intracel ular iron expression was identified by Prussian blue staining, and the cel viability in different groups was detected by cel counting kit-8. Final y, 2×105 labeled cel s were suspended with 1 mL PBS buffer, and were screened using 3.0 T MR on T2*WI sequences in vitro. RESULTS AND CONCLUSION:USPIO prepared with 0.75 mg/L poly-L-lysine could successful y label dog oral epithelial cel s. Prussian blue staining showed intracel ular blue spots, and the intracel ular blue spots became more with the concentration increasing and saturated at the concentration of 25 mg/L. Cel counting kit-8 indicated that the cel viability did not change when the concentration<25 mg/L. Among the T2*WI sequences, the MRI signal intensity decreased with the concentration increasing. In conclusion, canine oral epithelial cel s can be effectively labeled with USPIO making no impact on cel viability when the concentration<25 mg/L, and MRI can be used to track these labeled cel s in vitro.

Objective To investigate the renoprotective effects of autologous transplantation of adipose-derived mesenchymal stem cells (ADMSCs) in diabetic rats. Methods Sprague-Dawley (SD) rats were injected intraperitoneally with 40 mg/kg streptozotocin (STZ) for 5 consecutive days to induce type 1 diabetes. Four weeks following STZ injection, eighteen SD rats were randomized into two groups: the diabetic group (n = 9) and the ADMSCs group (n = 9). Normal nondiaetic rats were set as the normal control (n = 9). Autologous ADMSCs were cultured and identified in vitro , which were intravenously injection to the ADMSCs group rats via the tail vein. At 8 weeks after transplantation, levels of blood glucose, insulin, serum urea nitrogen, serumcreatinine and urine protein were measured. Meanwhile the body weight and kidney weight were examined. Results Mesenchymal cell surface markers were expressed in the cultured ADMSCs. The ADMSCs could differentiate into the adipogenic and osteoblastic lineages. Both the diabetic group and the ADMSCs group rats had higher levels of blood glucose , urea nitrogen , serum creatinine , urine protein and higher ratio of the kidney weight/body weight than those in the normal control group (P < 0.05, respectively). Blood glucose, urea nitrogen and the ratio of kidney weight/body weight in the ADMSCs group rats were significantly decreased compared with the diabetic group (P < 0.05, respectively). The decreased insulin level was attenuated after transplantation of ADMSCs (P < 0.05). Besides, levels of serum creatinine and urine protein in the ADMSCs group were lower than those in the diabetic group with no significant difference. Conclusion Autologous transplantation of ADMSCs can improve metabolic disorder and relieves diabetic renal damage.

Objective To assess the influence of Rizatriptan on the cholecystokinin( CCK) expression in periaqueductal gray( PAG) of migraine model rat to investigate the possible mechanism by which Triptans treat mi?graine. Methods A total of 24 rats were randomly divided into four groups:normal control groups(A),migraine model groups(B),Rizatriptan control groups(C) and Rizatriptan treatment groups(D).C and D groups were intra?gastrically perfused with Rizatriptan,1 mg/kg per day. After 7 days,nitroglycerin was subcutaneously injected into the buttocks of the B and D group to induce migraine. Two hours after nitroglycerin injection,the trigeminal ganglia were isolated.CGRP expression in periaqueductal gray were determined using SYBR Green I real?time quantitative PCR and Immunohistochemistry. Results CCK mRNA levels ( target gene mRNA copies per 250 ng total RNA,× 106) in the rat midbrain of A,B,C,D groups were 1.25±0.41,1.71±0.93,0.17±0.12,0.22±0.07 respectively. CCK?8?immunoreactive positive cells in the rat PAG of each group were 37.17±12.62,40.17±11.09,27.33±7.71, 20.67±7.66 respectively. CCK mRNA expression in group C was significantly lower than that of group A(P<0.05) while the CCK mRNA expression in group D was lower than that of group B(P<0.05).The CCK?8?positive cells of the rat PAG in group D were lower than that in group B(P<0.05) . Conclusion Rizatriptan can down regulate the expression of CCK?8 in the PAG of the migraine rats and weaken the CCK?8 induced inhibition of the analgesic effects of opioid peptides.