1.An Attempt to Breed Medicinal Animals Together Under Same Ecological Condition with Constant Temperature
Chinese Traditional and Herbal Drugs 2000;31(9):703-704
The feasibility to breed gecko, scorpion, centipede,leech and ground beetle together in abreeding shed of our own design with constant temperature was tried for a period of 2 years. Resultsshowed that the animals lead their normal dietetic and living habit satisfactorily, without hibernation andreproduce their offsprings the whole year round. It could be concluded that such breeding scheme is worth-while to advocate for the benefit of those who are engaged in the business of medicinal animal breeding.
2.A survey on clinical features of somatization disorder
Zhiyang WANG ; Shenxun SHI ; Liwei WANG
Chinese Journal of General Practitioners 2009;08(6):381-384
To investigate clinical features of somatization disorder. Methods Seventy-nine paeeeeee with somatization disorder (SD), diagnosed based on the Chinese Classification and Diagnostic Criteria of Mental Disorders, version 3 ( CCMD-3 ) during September 2006 to August 2008, were selected and assessed by serf-edited somatic symptom list ( SSSL), symptom checklist-90 ( SCL-90 ), Hamilton anxiety scale (HAMA) and Hamilton depression scale (HAMD). Results Sixty-two symptoms in two to six systems were involved in SDs, with a mean and standard deviation of 12.4 ± 6.6 symptoms in 4.2 ± 0.9 systems. The skin, nervous system, gastrointestinal system, respiratory and circulatory systems were the most involved in those symptoms. Depression, anxiety and hostile mood, number and total score of somatic symptoms all correlated positively with the total scores of HAMA and scores of somatic anxiety and mental anxiety (P < 0.01 ), but not with the total score of HAMD (P > 0.05 ). Conclusions Multiple systems were involved in SD, usually with complicated symptoms including depression and anxiety, which was prone to inappropriate medical diagnoses. Number and severity of somatic symptoms positively correlated with severity of anxious symptoms.
3.Simultaneous determination of five flavonoids in Duchesnea indica at five picking time by HPLC
Zhiyang WANG ; Feng ZHANG ; Zhen DAI ; Hua AN
Chinese Traditional Patent Medicine 2017;39(4):786-789
AIM To establish an HPLC method for the simuhaneous content determination of five flavonoids in Duchesnea indica (Andr.) Focke at five picking time (April,May,June,July and August).METHODS The analysis of D.indica methanol extract was performed on a 25 ℃ thermostatic Agilent ZORBAX SB-C18 column (250 mm×4.6 mm,5 μm),the mobile phase comprising of acetointrile-0.1% methanoic acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 350 nm.RESULTS Rutin,hyperoside,isoquercitrin,celereoin and kaempferol showed good linear relationships within their own ranges (R2 ≥0.998 6),whose average recoveries were 97.1%-101.5% with the RSDs of 1.37%-2.37%.The contents of five constituents in samples at different picking time exhibited obvious differences,among which lutin and hyperoside contents were the highest in June,isoquercitrin content was the highest in July,and celereoin and kaempferol contents were the highest in August.CONCLUSION The suitable picking time of D.indica is June and July.
4.Expression and role of galanin in the hypothalamus of rat with the drug-induced hyperprolactinemia
Zhiyang ZHANG ; Yongjun WANG ; Liang ZHANG ; Zhiqing XU ; Chuanyue WANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(4):293-296
Objective To study the expression and role of galanin in the hypothalamus of rat with the drug-induced hyperprolactinemia.Methods Hyperprolactinemia was induced by daily intraperitoneal injections 50 mg/kg sulpiride solution.The protein in the hypothalamus of rat was extracted to determine the expression levels of galanin with Western Blot.The expression and colocalization of galanin and dopamine in model and control group were observed with immunofluorescence.Results The model group showed a significant increase of serum prolactin (PRL) level and a significant decrease of serum estradiol (E2) level,as compared to the control group ((15.74±2.49) ng/ml vs (10.25±1.29) ng/ml and (4.24±0.69)pg/ml vs (9.56±3.25) pg/ml,respectively,P<0.05).Both the expression level of galanin and the number of neurons coexisting with galanin and dopamine were decreased in the hypothalamus of the hyperprolactinemia rat compared with the control group.Western Blot revealed that,compared to the control group,the sulpiride model group had a significant increase of galanin but not TH (0.405±0.112 vs 0.985±0.158,P<0.05 and 0.871 ± 0.046 vs 0.890±0.054,P> 0.05,respectively).Conclusion Galanin expression level has decrease in the hypothalamus of the hyperprolactinemia rat,which contributes to the reduction of dopaminergic neurons.
5.Initial experimental research on placenta extract to stimulate lymphocyte proliferation activity and stability
Guohua WANG ; Wangtai CHENG ; Hongyan MA ; Zhiyang CHEN ; Libo YAO
Chinese Journal of Biochemical Pharmaceutics 2001;22(3):137-139
Purpose The aim is to prepare the extract of immunocompetent cell proliferation from human placenta and to try to find out a suitable method of preserving the extract.Methods The extract was mainly prepared by heat-treating placenta homogenated fluid. Then the activity to stimulate murine splenic lymphocyte proliferation in vitro was done with MTT , exposing the extract to radioisotope 60 Co.Results The content of protein was 2~3mg per gram placenta measured by Lowry′s Method.The rate to promote cell proliferation was more than 80 percent.The activity lasted a few months after being exposed to radioisotope.Conclusion The extract prepared by heat-treating not only had high activity, but also had the unique method and good repeatability.This prepared extract as a kind of stable,reliable and remarkably promoting lymphocyte proliferation reaction had the value of development production on broad scale as well as in clinical practice.
6.Study on the role of Bcl-2 in anti- neuronal apoptosis after spinal cord injury
Ying WANG ; Zhiyang SUN ; Kuiming ZHANG ; Guoqiang XU ; Guang LI
Chinese Journal of Emergency Medicine 2010;19(12):1275-1280
Objective To study the variables of behavioral function and TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling) figure in Bcl-2 transgenic (TG) mice and control mice after spinal cord injury (SCI), thus to find new ideas and ways for diagnosing and treating SCI. Method The genesis of Bcl-2 overexpression transgenic (TG) mice were produced by injection of Bcl-2 plasmid into the fertilized ova of mice.Nine Bcl-2 TG mice and nine control mice were subjected to SCI of moderate severity at T10, with the use of weight dropping (WD) method (impact force 2.5~3.0 g·cm). Up to 1 day , 7 days, and 14 days after SCI,functional deficits were evaluated with BBB scales, and the apoptosis of neurons was investigated by using TUNEL method. Another three mice of control group were only treated with laminectomy without SCI for comparison. Results The mean functional scores in the control mice were lower than those in the Bcl-2 TG mice, although the unpaired T -test revealed no significant differences. On the other hand, the number of TUNEL positive neurons and IOD(Integrated Optical Density)score in the Bcl-2 TG mice were both significantly lower than those in the control mice. Conclusions This experiment suggests that overexpression of Bcl-2 may suppress neuronal apoptosis after SCI. The Bcl-2 may be an important factor in relieving the damage within CNS after trauma.
7.Prenatal ultrasound application in diagnosis and treatment of twin reverse arterial perfusion syndrome
Xiping TAN ; Huifang WANG ; Zhiyang HU ; Qi LIN ; Cheng FENG
Chinese Journal of Medical Imaging Technology 2009;25(10):1849-1852
Objective To investigate the value of prenatal ultrasound in diagnosis and treatment of twin reverse arterial perfusion (TRAP) syndrome. Methods A retrospective study was performed in 5 TRAP cases, including ultrasound images, clinical data and pregnancy outcomes. The sonographic characteristics were summarized. Results Five TRAP cases were diagnosed during 13 to 28 weeks' gestation and confirmed after birth. Color Doppler unltrasonography revealed retrograde umbilical artery perfusion towards acardiac twin. Two of 5 cases ended up in induced abortion, 1 in spontaneous abortion, 1 was delivered at 37 weeks' gestation after ultrasound-guided feticide of the acardiac twin and 1 was monitored closely with ultrasound and delivered alive at 32~(+4) weeks' gestation. Conclusion Prenatal ultrasonography has great applicative value for TRAP syndrome in early diagnosis, choosing optimal treatment and prognosis assessment.
8.The Guiding Significance of Clinical Pharmacokinetics of Salvianolate for Clinical Trial
Lei GAO ; Shuncheng WANG ; Ying ZHANG ; Qiong ZHANG ; Zhiyang CHEN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(03):-
0.05).Conclusion The results of pharmacokinetic study on salvianolate can guide the clinical trial design and reasonableuse of medicaments in clinic.
9.Effect of hypoxic preconditioning on anti-inflammatory responses of bone marrow mesenchymal stem cells in rats: in vitro and in vivo experiments
Liping WANG ; Xiaoming GUO ; Xianwei GAO ; Zhiyang CAI ; Guozhong CHEN
Chinese Journal of Anesthesiology 2013;33(11):1300-1305
Objective To investigate the effect of hypoxic preconditioning on anti-inflammatory responses of bone marrow mesenchymal stem cells (BMSCs) in rats through in vitro and in vivo experiments.Methods In vitro experiment The isolated rat BMSCs were cultured by whole bone marrow adherence method.The cells at passage 3 were seeded in 24-well plates at a density of 1 × 106 cells/ml and randomly divided into 5 groups (n =8 wells each) using a random number table:control group (group C),normoxia-incubated group (group N),hypoxic preconditioning group (group H),hypoxia preconditioning + STAT3 inhibitor Stattic group (group HS) and hypoxia preconditioning + anti-IL-10 monoclonal antibody group (group HA).In group C,BMSCs were incubated in DMEM culture medium.In group N,BMSCs were exposed to21% O2-74% N2-5.0% CO2 for48 h.In group H,BMSCs were exposed to 0.5% O2-94.5% N2-5.0% CO2 for 24 h followed by 24 h exposure to normoxia.In HS and HA groups,500 μg/ml Stattic and 100 μg/rnl anti-IL-10 monoclonal antibody were added to the culture medium before hypoxia preconditioning,respectively.The expression of phosphorylated STAT3 (p-STAT3) and IL-10 was determined by Western blot.In vivo experiment Healthy male Sprague-Dawley rats,weighing 300-350 g,in which intrathecal catheters were successfully implanted without complications,underwent spinal cord ischemia by occlusion of the thoracic aorta combined with controlled hypotension.Three hundred rats with spinal cord I/R injury were randomly divided into C,N,H,HS and HA groups (n =60 each) using a random number table.Immediately after onset of reperfusion,DMEM medium 300 μl was injected intrathecally in group C,and BMSC suspension 300 μl (1 × 106 cells/ml) was injected intrathecally in N,H,HS and HA groups.Neurological function was scored before ischemia and at 4,12,24 and 48 h of reperfusion (T0-,).The animals were then sacrificed and the lumbar segment of spinal cord was removed for detection of the content of IL-10,TNF-α,IL-1β,IL-6,monocyte chemotactic protein-1 (MCP-1),and macrophage inflammatory protein-1 α (MIP-1 α) (by ELISA) and the number of activated microglia (by immuno-histochemistry).Results Compared with C and N groups,the expression of pSTATβ and IL-10 was significantly up-regulated,the neurological function score and IL-10 content were increased,the content of TNF-α,IL-1β,IL-6,MCP-1 and MIP-1α and the number of activated microglia were decreased in group H (P < 0.05).Compared with group H,the expression of p-STAT3 and IL-10 in group HS and expression of IL-10 in group HA was significantly down-regulated,and the neurological function score and IL-10 content were decreased,and the content of TNF-α,IL-13,IL-6,MCP-1 and MIP-1α and the number of activated microglia were increased in HS and HA groups (P < 0.05).Conclusion Hypoxic preconditioning can enhance anti-inflammatory effects of BMSCs,thus increasing BMSCs-induced reduction of spinal cord ischemia-reperfusion injury in rats.
10.Monoclonal Antibody S2C4 Neutralizes The Toxicity of Shiga Toxin 2 and Its Variants
Yongjun JIAO ; Xiaoyan ZENG ; Xiling GUO ; Zhiyang SHI ; Zhenqing FENG ; Hua WANG
Progress in Biochemistry and Biophysics 2009;36(6):736-742
Shiga toxin 2 (Stx2) toxoid produced by formaldehyde treatment of purified toxin was used to immunize BALB/c mice for monoclonal antibody (MAb) production.The neutralizing activities of positive clones against Stx2 were screened by in vitro cytotoxicity assay.The isotype and specificity of resultant clone was determined,and its efficacy to neutralize the activity of purified Stx2 was evaluated by in vitro and in vivo toxicity model.Lastly,its spectrum of activity against Stx2 variants was also accessed by mouse toxicity model.It was demonstrated that one of the 12 positive MAb clones against Stx2,designating $2C4 had neutralizing activity.S2C4 belongs to the immunoglobulin G1 subclass and has a K light chain,and it reacts with the A subunit of Stx2 and does not bind to Stx2 B subunit or to Stx1.S2CA could efficiently neutralize the cytotoxicity of Stx2 to Veto cells and mice.It also protected mice against lethal doses of Stx2 variants challenge including Stx2c and Stx2vha.S2C4 is a promising candidate molecule in preventing the progression of hemolytic-uremic syndrome (HUS) mediated mainly by Stx2 in Stx-producing Escherichia coli(STEC)infection.