1.The effect of betaendorphin on immune function of rats
Chinese Journal of Immunology 1985;0(01):-
In order to investigate the role of ?-endorphin in the regulation of immune function,we ob-served in vitro and in vivo effects of ?-endorphinon on mitogen--induced spleen lymphocyte pro-liferation,interleukin—1 and interleukin—2 production,It was found that ?-endorphin at 10~(-8)-10~(-14)mol/L could enhance Con A induced proliferation and interleukin-2 production of spleniclymphocyte in vitro.B—endprphin couled also increase LPS induced interleukin—1 productionby peritoneal macropages.The augmentative effect of ?-endorphin on lymphocyte proliferationand interleukin—2 production was abrogate by naloxone.Intravenous injection of ?—endorphinalso increased the lymphoproliferation,interleukin—1 and interleukin—2 production.Our resultsindicated that ?-endorphin enhanced immune function of rats and this action of ?-endorphin maybemediated by opioid receptor.
2.Regulatory effect of Zn~(2+) on P2X receptor-mediated,ATP-induced currents in different autonomic ganglion neurons in rats
Academic Journal of Second Military Medical University 1981;0(04):-
Objective:To compare the effects of Zn~(2+)onthe P2X receptor-mediated,ATP-induced currents in neurons separated from rat superior cervical ganglion(SCG),nodose ganglion(NG),and otic ganglion(OTG).Methods: Whole-cell patch clamp recording technique was used to study the regulatory effects of Zn~(2+) on ATP/??-me ATP-induced currents in the above 3 ganlglion neurons.Results: All SCG neurons responded to ATP with a sustained current,while no neurons responded to ??-me ATP;Zn~(2+) potentiated ATP-induced sustained currents to(1 442?34)% of the original value.All NG neurons responded to ATP and ??-me ATP with a similar sustained current;coapplication of Zn~(2+)(10 ?mol/L) potentiated their responses to(180?12)% and(262?28)%,respectively.All OTG neurons responded to both ATP and ??-me ATP with a sustained current.Coapplication of Zn~(2+)(10 ? mol/L) did not significantly potentiate the sustained currents induced by 10 ?mol/L ATP,but when ATP was at 30 ?mol/L,Zn~(2+)(10-100 ?mol/L) inhibited ATP-induced sustained currents in a dose dependent manner.If TNP-ATP(100 nmol/L) was first used to inhibit ATP-induced current to(26?2)% of the original value,Zn~(2+) at 10 ?mol/L potentiated the inhibited current to(127?9)% of its original value.Coapplication of Zn~(2+)(10 ?mol/L) potentiated ??-me ATP-induced currents to(146?5)% of the control.Zn~(2+)(300 ?mol/L) had no effect on ?_(on) and ?_(off) of ATP-and ??-me ATP-induced(30 ?mol/L) currents in OTG neurons.Conclusion:(1) Zn~(2+) is an allosteric modulator of P2X_(2) and P2X_(2/3) receptors in SCG and NG neurons and can potentiate the currents they induced.(2)The predominant receptor subtypes in OTG appear to be homomeric P2X_(2/3) and a little P2X_(2).Zn~(2+) has an inhibitory effect on the ATP-induced currents in OTG neurons,suggesting some novel members of the P2X purinoceptor exist in these neurons.
3.An intimate experience of physiology teaching through PLB in undergraduate nursing students
Basic & Clinical Medicine 2006;0(10):-
The progress of modern science and technology stimulates reformation of teaching.PBL(Problem Based Learning) encourages the students to explore and solve the problems in the learning process.PBL can arouse the enthusiasm and creativity of the students through the carefully designed questions,focused discussions and(related) experiments etc.It can create an easy and active learning atmosphere that can improve the quality of teaching.
4.Introduction of scientific history into physiological teaching process
Basic & Clinical Medicine 2006;0(01):-
Physiological education should lead the student not only to understand the physiological knowledge itself,but also to comprehend the scientific methodology,scientific thought and scientific spirit.In our teaching process,we introduced some creative work of the famous scientists in the physiological history to stimulate the students' interest and ability on creative scientific thinking and practice.
5.On Leading Teacher's Responsibility System in Physiology Teaching
Chinese Journal of Medical Education Research 2003;0(03):-
The leading teacher's responsibility system can do a lot of benefits to improving teaching quality,enhance the teacher's sense of responsibility,facilitate the implementation of heuristic and student-specific teaching,and strengthen the relationship between teachers and students,which promotes teaching feedback.
8.Advance in basic and clinical research on the treatment of choradoma
Jianfa NI ; Guangxin ZHOU ; Xin SHI
Journal of Medical Postgraduates 2015;(2):203-206
Chordoma is a rare low and moderate-grade malignant tumor originated in the embryonic period residual notochord tissue.Due to its critical location, local aggressive nature, and high recurrence, chordoma is not sensitive to radiotherapy and chemo-therapy with poor prognosis .Surgery is the main treatment method .Here we present a review focusing on basic and clinical research progress of chordoma .
9.Clinical Study on Treatment of 50 Cases of Prospermia with Chinese Medicine Combined with Antidepressant
Xin YANG ; Zhizhong YAN ; Weidong NI
Journal of Traditional Chinese Medicine 1993;0(02):-
Objective:To investigate the therapeutic effect of Chinese medicine combined with small dose of antidepressant on prospermia.Methods:150 cases of prospermia conformed to the diagnostic criteria were divided into 3 groups according to their wishes,50 cases in each group.Group I were treated with Zhibai Gujing Decoction,group Ⅱ with Sertraline hydrochloride,and group Ⅲ with Zhibai Gujing Decoction plus Sertraline hydrochloride,for 4 consecutive weeks.The ejaculatory latency,satisfaction degrees of sexual life,and the adverse effect of the medicine were observed.Results:After treatment,the ejaculatory latency was significantly prolonged and the satisfaction degree of sexual life was significantly increased in the 3 groups(P
10.Cloning of mutA and expression of its coding protein
Xin SHI ; Longxing NI ; Yu TIAN
Journal of Practical Stomatology 2001;0(03):-
Objective:To obtain mutA gene of Strepto c occus mutans (Ms),and to express it in E.coli DH5?.Methods: mutA gene was amplified by PCR with specific primers from genome of Ms CH43 strain. After sequencing, the gene segment was inserted into vector pProEX and expressed in E.coli DH5?.The protein expression was induced by ITPG an d the protein products were examined by 180 ml/L SDSPAGE electrophorosis. Results:The length of PCR product was 147 bp and was identical to mu tA gene reported by GenBank.The mutA gene product was expressed in E.col i DH5? with Mr of 5.7?10 3.The maximum mutA protein product amount (20% of the total bacterial protein) was obtained when the A 600 value of DH5? was 1.666,IPTG concerntration 1.0 mmol/L and induction time 6 h.Conclus ion:mutA of Ms CH43 can be cloned and expressed in E.coli DH 5?.