1.Memory response to manual acupuncture in chronic insomniacs: evidence from event-related potentials
Fei-Yi ZHAO ; Zhe-Yuan ZHANG ; Xiao-Jie XIA ; Yu-Fang HONG ; Ying-Xia ZHAO ; Hai-Xia YAN ; Hong XU
Journal of Acupuncture and Tuina Science 2018;16(6):382-388
Objective:To investigate the effectiveness and safety of manual acupuncture for memory loss and sleep quality in chronic insomniacs.Methods:A total of 60 eligible participants were enrolled and randomized into either a treatment group or a control group,with 30 cases in each group.The treatment group was intervened by manual acupuncture whereas the control group was given sham acupuncture.In the two groups,the interventions were offered once every other day and three times a week,for 8 weeks in total.Before and after the treatment,Pittsburgh sleep quality index (PSQI) and eventrelated potentials (ERPs) were used to assess the patients' sleep quality and memory,respectively.Meanwhile,adverse events were monitored and recorded.Results:After 8-week treatment,both the treatment group and the control group showed a significant decrease in the PSQI global score (P<0.001,P<0.01),and the decrease in the treatment group was more significant than that in the control group (P<0.001).The intra-group comparisons of ERPs indicated that,the latencies of N1 and P3 were shortened and the amplitudes of N1 and P3 were increased in the treatment group after the intervention,and the differences were statistically significant (P<0.05,P<0.001);in the control group,there were no significant changes in the latency and amplitude after the treatment (P>0.05).The between-group comparisons of ERPs showed that the treatment group was more effective than the control group in shortening the latency of P3 (P<0.01).Conclusion:Acupuncture can be a safe and effective treatment option for chronic insomnia coupled with memory impairment.
3.The inhibiting effect of endostatin on transplant tumor of breast carcinoma MCF-7 cell in nude mice
Minyi ZHAO ; Bo XU ; Jintang XIA ; Wensong CAI ; Huanqing XIAO
International Journal of Surgery 2009;36(1):10-12
Objective To observe inhibiting effect of endostatin on subcutaneous transplant tumor of breast carcinoma, and to illuminate the therapeutic effect of endostatin in the cancer. Methods The effect of en-dostatin on MCF-7 cell proliferation was studied by MTr. The model of MCF-7 cell transplant tumor on nude mice was constructed. Endostatin was injected intradermally around the transplant tumor. Inhibition effect on the tumor was observed. Results Endostatin with the concentration of 10 μ/mL and 15 μg/mL can inhibitMCF-7 cell proliferation effectively (P < 0. 05 ). After endostatin injection, tumor weight, volume and mi-crovessel density decreased significantly(P < 0.05 ). Conclusion Endostatin can inhibit breast carcinoma proliferation through inhibiting angiogenesis and the tumor cell itself.
4.Analgesic effcacy and spinal neurotoxicity of intrathecal different doses of dexmedetomidine in rats
Jiabao HOU ; Xingpeng XIAO ; Zhongyuan XIA ; Bo ZHAO ; Yang WU
Chinese Journal of Anesthesiology 2011;31(6):710-713
Objective To investigate the analgesic efficacy and spinal neurotoxicity of intrathecal (IT) different doses of dexmedetomidine in rats. Methods Sixty male SD rats weighing 180-220 g were randomly divided into 5 groups ( n = 12 each): groupnormal control (group C); group IT normal saline (group N); different doses of dexmedetomidine groups received IT dexmedetomidine 0.75, 1.50 and 3.00 μg/kg respectively (groups D1.3). Paw withdrawal threshold to mechanical stimulation (PWMT)with yon Frey filaments and tail flick latency (TFL) to a thermal nociceptive stimulus were measured before (To, baseline) and at 30 or60 rin after IT dexmedetomidine or normal saline administration (T1, T2 ) and the percentage of the maximum possible effect ( MPE ) was calculated. Lumbar segment of the spinal cord ( L4-6 ) was removed for microscopic examination and determination of c-Fos expression (by immuno-histochemistry) at 7, 24 and 48 h after IT dexmedetomidine or normal saline administration. Results PWMT, TFL and the percentage of MPE were significantly increased after IT dexmedetomidine as compared with the baseline values at T0 in groups D1-3 ( P < 0.05). PWMT was significantly higher at T1 and TFL and the percentage of MPE were higher at T2 in groups D1-3 than in groups C and N,and in group D3 than in groups D1,2 ( P < 0.05). At 7,24 h after IT dexmedetomidine c-Fos protein expression was significantly higher in group D3 than in groups C and N( P < 0.05). There was no significant difference in c-Fos expression at 48 h after IT dexmedetomidine between group D3 and groups C and N ( P > 0.05 ). At 24 h after IT dexmedetomidine c-Fos protein expression was significantly higher in group D3 than in other 4 groups( P < 0.05). Slight spinal cord injury was observed at 24 h after IT dexmedetomidine in group D3. Conclusion IT dexmedetomidine has antinociceptive effect. High dose dexmedetomidine IT can produce transient reversible toxicity to the spinal cord.
5.Thirty-six cases of pterygium of yin-deficiency and fire-flourishing syndrome treated by acupuncture.
Hao-Tang XIA ; Xiao-Guan WAN ; Zi-Hao ZHAO
Chinese Acupuncture & Moxibustion 2012;32(4):316-316
Acupuncture Therapy
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Aged
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Female
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Humans
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Male
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Middle Aged
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Pterygium
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therapy
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Yin Deficiency
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therapy
7.Effects of different duration of sevoflurane anesthesia in neonatal period on long-term cognitive func-tion and hippocampal synaptic plasticity in rats
Xuelian PAN ; Bo ZHAO ; Yun XIAO ; Jiabao HOU ; Zhongyuan XIA
Chinese Journal of Anesthesiology 2016;36(9):1085-1088
Objective To investigate the effects of different duration of sevoflurane anesthesia in the neonatal period on the long?term cognitive function and hippocampal synaptic plasticity in rats. Methods Twenty?four pathogen?free healthy Sprague?Dawley rats of both sexes, aged 7 days, weighing 12-16 g, were divided into 3 groups ( n=8 each) using a random number table: control group ( group C) , sevoflu?rane anesthesia for 2 h group ( group S1 ) , and sevoflurane anesthesia for 6 h group ( group S2 ) . Group S1 and group S2 inhaled 2% sevoflurane for 2 and 6 h, respectively. Morris water maze test was performed at 30 days after the end of anesthesia ( postnatal day 37) to assess the cognitive function. After the end of the test, the rats were sacrificed, and hippocampi were isolated for determination of the expression of brain?de?rived neurotrophic factor ( BDNF) , postsynaptic density?95 ( PSD?95) and synapsin 1 in hippocampal tis?sues by Western blot. Results Compared with group C, the escape latency on 4th and 5th days of the test in group S1 and on 2nd-5th days of the test in group S2 was significantly prolonged, and the frequency of crossing the original platform was significantly decreased, and the time of staying at the platform quadrant was significantly shortened in S1 and S2 groups, the expression of BDNF, PSD?95 and synapsin 1 in hipp?ocampal tissues was significantly down?regulated in group S2 (P<0?05), and no significant change was found in the expression of BDNF, PSD?95 and synapsin 1 in hippocampal tissues in group S1 ( P>0?05) . Compared with group S1 , no significant change was found in the escape latency and frequency of crossing
the original platform (P>0?05), the time of staying at the platform quadrant was significantly shortened, and the expression of BDNF, PSD?95 and synapsin 1 in hippocampal tissues was significantly down?regula?ted in group S2 ( P<0?05) . Conclusion Short?time and long?time sevoflurane anesthesia both can induce long?term cognitive dysfunction in the neonatal period, and the severity is aggravated with prolonged anes?thesia; the partial mechanism is related to inhibition of the synaptic plasticity of hippocampal neurons of rats.
8.Advances in anti-inflammatory and anti-tumor effects of the main components of Curcumae Rhizoma
Zhimei ZHAO ; Lijie ZHANG ; Tian XIA ; Zhi XIAO
Drug Evaluation Research 2017;40(1):119-124
Curcumae Rhizoma comes from Curcuma genus,functional breaking blood stasis,detumescence and acesodyne for treatment of Zhengjia accumulation,amenorrhea,traumatic injury and bruising pain.Modem pharmacological studies have shown that the main monomer composition of zedoary turmeric has a good anti-inflammatory and anti-tumor effects.The main monomer composition of zedoary turmeric copies of curcumol,beta etemene,curcumin anti-inflammatory anti-tumor mechanism of review,provide the basis for the further research progress and clinical application of zedoary turmeric.
9. Consideration on critical quality attributes determination of Chinese materia medica preparations
Chinese Traditional and Herbal Drugs 2019;50(17):4008-4012
In this paper, through the analysis of the key issues in the confirmation of the critical quality attributes (CQAs) of traditional Chinese medicine preparations, it is proposed that the determination of the CQAs should fully consider factors such as the efficacy, safety, nature of the drug substance, requirements of formulation and overall requirements of drug quality control. Complete quality control items that can characterize the properties of drugs should be extracted to provide a basis for the establishment of process control and drug quality standards.
10.Studies on Screening and Conditions of Strains Highly Producing Neutral Phytase
Zhao-Xia LI ; Ai-Min WANG ; Xiao-Min LI ;
Microbiology 1992;0(04):-
A highly phytase-producing strain B.licheniformis LL8 was obtained by several mutagenesis of UV with B.licheniformis as starting strain.The new strain produced about two folds of phytase activity as compared with the starting strain. The production performance of the strain was stable. The cultivation conditions were optimized by single factor and orthogonal experiment. When the mutant B.licheniformis LL8 was cultivated at 55℃, initial pH 7.5 with the inoculation size of 10% for 30h in WBE medUm, the phytase activity was up to 2268.4U/mL.