1.Synthesis of BODIPY-FL-Iabeled phenylephrine and the determination of its biological activity
Zhi-Zhen LV ; Ming XU ; You-Yi ZHANG ;
Journal of Peking University(Health Sciences) 2003;0(06):-
Objective:To'synthesize BODIPY-FL-labeled phenylephrine(BODIPY-FL-PE)and deter-mine its biological activity.Methods:Condensation of BODIPY-FL(green fluorescence dye)and phe-nylephrine(?_1-adrenoceptor agonist)was performed by adding dicyclohexylcarbodiimide(DCC)in thepresence of absolute tetrahydrofuran(THF).The reaction occurred in absolutely oxygen and water condi-tion at room temperature.The crude product was separated and purified by thin-layer chromatography(TLC).The structure of BODIPY-FL-PE was characterized by TLC and mass spectrometry(MS).Itspharmabiological activity was determined by Western blot.Results:BODIPY-FL-PE,the target mole-cule,was synthesized and its structure was identified by using ultra-violet spectrometry(UV)and MS.The result of Western blot indicated that ?_1-adrenoceptor(?_1-AR)induced ERK phosphorylation wasconfirmed in both BODIPY-FL-PE and PE treated groups.Conclusion:The synthesized BODIPY-FL-PEhas pharmacological activity that could activate ?_1-AR.Visualization of AR behaviors could be achievedby tracing the trajectories of BODIPY-FL-PE labeled AR.It might be a promising tool for investigatingdynamic behaviors of AR in living cells.
2.Efficacy observation of acupuncture and tapping therapy in the treatment of type 2 diabetes of yin deficiency pattern combined with stasis in the patients.
Yi-Dan WANG ; Zhi-Cheng LIU ; Bin XU
Chinese Acupuncture & Moxibustion 2014;34(8):731-735
OBJECTIVETo explore the clinical efficacy and mechanism of acupuncture and tapping therapy in the treatment of type 2 diabetes of yin deficiency pattern combined with stasis in the patients.
METHODSOne hundred and twelve patients were treated with acupuncture, followed by tapping method. The reinforcing method with lifting, thrusting and rotating needle technique was used at Taixi (KI 3), Shenmen (HT 7), Taibai (SP 3), Taiyuan (LU 9), Sanyinjiao (SP 6) and Zusanli (ST 36); and the even-needling technique was used at Taichong (LR 3), Hegu (LI 4), Xuehai (SP 10) and Fenglong (ST 40). The needles were remained for 30 min. After needle removal, the tapping method with plum-blossom needle was applied to Geshu (BL 17), Yishu (EX-B 3), Ganshu (BL 18), Shenshu (BL 23) and Pishu (BL 20), once every two days. The treatment of 3 months was required. The changes were observed before and after treatment in the relevant indices of fat-islet axis such as fasting plasma glucose (FPG), fasting leptin (FLP), fasting insulin (FINS), insulin sensitivity index (ISI), insulin resistance (Homa IR), insulin secretion index (Homa-beta) and the indices of obesity and blood lipids in the patients.
RESULTSAfter treatment, the total effective rate was 84.8% (95/112), in which the efficacy on the stasis predominated syndrome was better than that of yin deficiency predominated syndrome [92.9% (52/56) vs 76.8% (43/56), P < 0.05]. Before treatment, FPG, FLP, FINS, Homa-IR, total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), body mass, body mass index (BMI), fat percentage (F%) and obesity degree in the patients were higher obviously than those in the normal group (all P < 0.01); high-density lipoprotein cholesterol (HDL-C) and ISI were lower than those in the normal group (both P < 0.01). After treatment, FPG, FLP, FINS, Homa-IR, TC, TG, LDL-C, body mass, BMI, F% and obesity degree were all reduced obviously as compared with those before treatment (all P < 0.01). ISI and HDL-C were increased apparently (both P < 0.01). The efficacy on mild obesity was superior to that on moderate and severe obesity, and the efficacy in the young patients was better than that in the elderly, the efficacy in the males was better than that in the females, but the differences were not significant (all P > 0.05). The efficacy in the cases with 10 years duration of sickness was superior to those with over 10 years duration of sickness (P < 0. 01).
CONCLUSIONAcupuncture and tapping therapy achieves the significant efficacy on type 2 diabetes of yin deficiency pattern combined with stasis and its effect mechanism is related to the positive regulation of glucose, lipid metabolism and fat-islet axis.
Acupuncture Points ; Acupuncture Therapy ; Adult ; Aged ; Blood Glucose ; metabolism ; Cholesterol ; metabolism ; Diabetes Mellitus, Type 2 ; metabolism ; therapy ; Female ; Humans ; Insulin ; metabolism ; Leptin ; metabolism ; Male ; Middle Aged ; Treatment Outcome ; Triglycerides ; metabolism ; Yin Deficiency ; metabolism ; therapy
5.Study on method of paeonia radix alba producing and concocting integration processing.
Jian-Zhong XU ; Yi-Ming SUN ; Xu-Ping YU ; Zhi-An WANG
China Journal of Chinese Materia Medica 2014;39(13):2504-2508
OBJECTIVETo study the origin pre-treating and processing integration techniques of Paeonia Radix Alba.
METHODDifferent processing integration techniques were adopted and compared with traditional processing techniques to determine drying rate, aqueous extracts and peoniflori content.
RESULTHalf-dry slices baked at 100 degrees C for 20 min and steamed at 100 degrees C for 10 min had the highest peoniflori contents. Half-dry slices baked at 100 degrees C for 20 min had the highest content of aqueous extracts. Products processed with conventional method and sulfur-fumigation had the lowest content of aqueous extracts.
CONCLUSIONThe origin processing integration techniques of Paeonia Radix Alba lose less active ingredients than conventional processing methods.
China ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Paeonia ; chemistry ; Technology, Pharmaceutical ; methods
6.Gradient pH co-precipitation to recover proteins from plasma discarded in artificial-liver treatment
Bing XU ; Chen PAN ; Xiao-Zhi JIANG ; Man-Zhi LIN ; Min CHEN ; Zhuo LIN ; Yi CHEN ; Hui-Cong CHEN ;
Chinese Journal of Infectious Diseases 2001;0(05):-
Objective To set up a system in vitro to rapidly recover plasma proteins lost during artificial-liver treatment.Methods The polyprotein precipitation was obtained by all proteins whose isoelectric point pH value were between 7.3 and 5.1,which collided with each other and aggregated using gradient pH co-precipitation(adding 1 mol/L citric acid slowly in the plasma solution to change the pH values gradually from 7.3 to 5.1 in 5 h)combined with salting out(degree of saturation of NaCl is 33%,reacted for 5.5 h at 4℃)or low-temperature ethanol precipitation(40% ethanol, reacted for 5.5 h at -7℃)so that to get rid of toxicants by discarding the supernatant.Results In the range of pH 5.1-7.3,50%(29g/57g)of the total plasma proteins had been recovered by the gradient pH salting out and 41%(25 g/61g)by the gradient pH low-temperature ethanol co-precipi- tation.The protein remained in the supernatant was mostly albumin and its combined bilirubin.The levels of total bilirubin decreased to 0.07% and 0.06% of the original levels by these two methods respectively and the serum HBV DNA level decreased to be undetected(quantitative PCR).Conclu- sions The proteins with close isoelectric point can co-precipitated with the presence of high concen- tration of NaCl or low-temperature ethanol and by changing the pH value gradually.The total protein in the discarded plasma during artificial-liver treatment can be recovered rapidly using the gradient pH coprecipitation.
7.The evaluation of the immune status and the detection of the fetal cells in peripheral blood of patients with pregnancy induced hypertension syndrome
Zhi LI ; Jinghua LI ; Binggen XU ; Jiajing CHENG ; Yi WU ; Xiaoping GU
Chinese Journal of Laboratory Medicine 2008;31(2):143-147
Objective To investigate various types and quantities of fetal cells getting into peripheral blood of pregnant women and immune status related to pregnancy induced hypertension syndrome (PIH) and analyze the etiology of PIH.Methods (1) Three markers of fetal nucleated red blood cells (fNRBCs) in normal pregnant women(n=43)and PIH patients (n=39)were measured by flow cytometry: CD71,HbF/iAg and HbF/CA.(2)We detected the levels of sub-groups of lymphocytes and some plasma cytokines.such as TNF-α and IL-6.The blood samples were from normal pregnant subjects and patients of PIH.Results In the peripheral blood of patients of PIH and normal pregnant subjects,(1) The quantities of fetal cells using three different methods in PIH [6.56(11.37)%、0.09(0.16)%、0.06(0.11)%]were significantly different from normal pregnant subjects[1.58(3.35)%、0.04(0.08)%、0.02(0.06)%],Z= -5.31,-2.97,-4.13 respectively,P<0.01.(2)Except CD8,the levels of CD3 (76.4±8.5)%,CD4(42.6±6.4)%,CD4/CD8(1.5±0.4)%,CD19(10.5±3.9)%,CD16/CD56 (12.2±7.7)%,TNF-α (1.4 ±0.6)μg/L and IL-6(89.6±12.9)μg/L in PIH were significantly different from normal pregnant subjects[CD3(70.4±8.3)%,CD4(35.3±6.9)%,CD4/CD8(1.2±0.4)%,CD19(8.2±2.8)%,CD16/CD56(20.5±8.9)%,TNF-α(0.5±0.2)μg/L and IL-6(22.0±5.7)μg/L,respectively,P<0.001].There were no significant differences observed in the level of CD8(P>0.05).Conclusion The increment of fNRBCs getting into peripheral blood of pregnant women and associated immune status were implicated in the development of PIH.
9.Enhancement of immunological activity of CpG ODN by chitosan gene carrier.
Yi, XIANG ; Qingsong, YU ; Zhi, QI ; Zhengde, DU ; Shunqing, XU ; Huafeng, ZHANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(2):128-30
To investigate the enhancement of immunological activity of CpG ODN by chitosan gene carrier in mice, the effect of lymphocyte proliferation was detected in mice by using MTT, the levels of IgG and cytokines (IL-2 and IL-12) in serum were measured by ELISA and peripheral blood T lymphocyte subsets CD4(+), CD8(+) were analyzed by flow cytometry. Our results showed that spleen lymphocytes isolated from the CS-CpG ODN group of mice showed the strongest proliferation (SI=1.551), and the levels of IgG, IL-2 and IL-12 in serum were higher than those of other groups. Compared with the immunization with CpG ODN, the immunization with CS-CpG ODN gene carrier was more efficient in up-regulating the percentage of CD4(+)T cells and the ratio of CD4(+)/CD8(+) of mice. It was concluded that CS gene carrier of CpG ODN was much more effective in improving immunity of CpG ODN in mice.
10.Effect of Mechanical Ventilation Therapy on 48 Cases of Neonatal Respiratory Failure
ping, XU ; ying-chun, TANG ; shi-zhi, SUN ; yi-liang, WEN ; yong-jun, ZHANG
Journal of Applied Clinical Pediatrics 1992;0(06):-
Objective To observe the clinical effect of neonatal respiratory failure therapy with mechanical ventilation. Methods Forty - eight cases of neonatal respiratory failure were applied endotracheal intubation through mouth. At first, ventilation was given via the intermittent positive - pressure ventilation + peak end - expiratory pressure( IPPV + PEEP) way. Later, the breath parameters were regulated and transited to the intermittent mandatory ventilation( IMV) way according to original illness. When frac - tional concentration of in-spired gas(FiO2)