1.Study on synthesis and adsorption kinetics of Ganoderma lucidum Polysaccharide-Fe(Ⅲ) complex
Chinese Journal of Biochemical Pharmaceutics 2017;37(2):40-42
Objective To confirm the synthesis conditions of Ganoderma lucidum Polysaccharide-Fe (Ⅲ) Complex, and study on adsorption kinetics of it.Methods Adopt alcohol sedimenting technique and decoloring, dialysis, etc, extracting refined polysaccharide from Ganoderma lucidum.The solution of the Polysaccharide with FeCl3 react in alkaline conditions.To synthesize the polysaccharide iron complexes(GPC).The iron contents were determined by o-phenanthroline spectrophotography and and study on adsorption kinetics of Ganoderma lucidum Polysaccharide-Fe (Ⅲ) Complex.Results GPC is red brown and shapeless powder,it's liable to dissove in water,its solution is neutral,without precipitation,dissociation and Fe3 +at the pH from 3 to 12,and insoluble in organic solvents.So GPC is very stable.At the same time under different temperatures, the Fe3 + and polysaccharide on the adsorption quantity of increased gradually over time, the basic stability after 1.5 h.At the same time, with different temperatures the adsorption quantity of polysaccharide Fe3 + increases with the rise of temperature.Conclusion GPC may become a new ideal oral iron.Time and temperature are the key fabrication processes of GPC.
3.Iinhibitory effects of miR-200a on proliferation and migrating ability of conjunctival fibroblasts and its mechanism
Xue, YIN ; Ya, LIANG ; Zhilan, YUAN
Chinese Journal of Experimental Ophthalmology 2016;34(12):1087-1091
Background Scarring of surgical area,the most important factor,leads to the failure of glaucoma filtering surgeries.Therefore,more and more attentions are paid to the causes and process of scar formation.Objective This study was to compare the differences of proliferation and migrating abilities of fibroblasts between filtering bleb scar tissue and normal Tenon capsular tissue,and to investigate the inhibitory effects of miRNA-200a (miR-200a) on biological behavior of conjunctival fibroblasts.Methods Normal Tenon capsular tissue and filtering bleb scar tissue were collected during the strabismus surgery and glaucoma filtering surgery,respectively for the primarily culture of fibroblasts.The proliferation (absorbency,A) of the cells was assayed by cell counting kit-8 (CCK8) method;the relative migrating distance of the cells was measured by cell scratch test;and the relative expressions of transforming growth factor-β1 (TGF-β1)mRNA and miR-200a mRNA in the cells were detected by realtime fluorescence quantitative PCR.TGF-β1 mimic of 0,1,2 and 5 ng/ml was added in the medium of human normal Tenon capsular-derived fibroblasts (HTFs),and 0.00,0.25,0.50,1.00 μg/ml TGF-β1 inhibitor was added in the medium of human scarring-derived fibroblasts (HSFs) for 24 hours,respectively,and CCK8 was used to evaluate the proliferation of the cells.The relative migrating distance as well as the relative expressions of miR-200a mRNA were analyzed in the 2 ng/ml TGF-β1 mimic-or 1.00 μg/ml TGF-β1 inhibitor-treated cells.Results The primary conjunctival presented the spindle and star-like in shape with large body and oval nuclei.The cells showed the positive response for keratin and vimentin antibodies.The A values were 1.476±0.110 in the HSFs and 0.958±0.074 in the HTFs,with a significant difference between them (t =24.900,P=0.016).The relative expressions of TGF-β1 mRNA were significantly higher in the HSFs than those in the HTFs,and the relative expressions of miR-200a were evidently lower in the HSFs than those in the HTFs,showing significant differences between them (t =6.358,P =0.024;t=7.394,P =0.018).Compared with the 2 ng/ml TGF-β1 mimic-treated HTFs,the relative migrating distance increased,while the expression level of miR-200a mRNA was significantly reduced in the 2 ng/ml TGF-β1 mimictreated HSFs (all at P<0.05);Compared with the 1.00 μg/ml TGF-β1 inhibitor-treated HTFs,the relative migrating distance decreased,but the expression level of miR-200a mRNA was significantly elevated in the 1.00 μg/ml TGF-β1 inhibitor-treated HSFs (all at P<0.05).Conclusions The proliferation and migrating abilities are stronger in the HSFs than those in the HTFs,which probably is regulated by the expression of miR-200a in the cells.The miR-200a plays a negative feedback for the effect of TGF-β1 promoting proliferation and migration of fibroblasts.
5.Effect and safety of tirofiban in emergent interventional treatment for elder patients with acute ST segment elevation myocardial infarction
Licheng LEI ; Jianjun PENG ; Ya LIANG
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
Objective To evaluate the effect and safety of use of tirofiban in percutaneous coronary interventional therapy (PCI) in elder patients with acute ST segment elevation myocardial infarction (STEMI). Methods Sixty-five patients with acute STEMI were divided into two groups: 31 patients in the elderly group (≥70 years) and 34 patients in the younger group (0.05). Conclusion It is safe and effective to administer tirofiban to elderly patients with acute STEMI undergoing PCI.
6.Effect of pre-pregnancy body mass index and gestational weight gain on birth weight of infants: a prospective cohort study
Ya-wen WANG ; Ya-hui FENG ; San-san WU ; Shu-ya CAI ; Liang- kun MA ; Yu JIANG
Chinese Journal of Disease Control & Prevention 2020;24(3):314-318,364
Objective To analyze the relationship between pre - pregnancy body mass index ( BMI) ,gestational weight gain ( GWG) and the birth weight of infants,and explore the effect of weight change before and during pregnancy on low birth weight ( LBW) and macrosomia. Methods Women were enrolled by the Chinese Pregnant Women Cohort Study during first trimester. Each respondent's weight before and during pregnancy and the birth weight of infant were collected after fellow up. Prepregnancy BMI was divided into underweight,normal and overweight /obesity groups and GWG was divided into suitable, insufficient and excessive groups. Multivariate Logistic regression was adopted to explore the relationship be- tween pre-pregnancy BMI,GWG and newborn's birth weight. Results Women's prepregnancy BMI and GWG were associated with neonatal birth weight ( all P<0. 05) . Prepregnancy overweight or obesity ( OR=2. 339,95% CI: 1. 674-2. 282,P<0. 001) and excessive GWG ( OR= 1. 398,95% CI: 1. 188-1. 978,P= 0. 048) were shown as risk factors for macrosomia. Insufficient GWG increased LBW risk ( OR = 1. 479, 95% CI: 1. 461-1. 679,P= 0. 035) while excessive GWG declined LBW risk ( OR= 0. 428,95% CI: 0. 225 -0. 817,P= 0. 010) . Under weight-insufficient GWG was risk factor of LBW ( OR= 1. 335,95% CI: 1. 048 -2. 319,P= 0. 048) while normal BMI-excessive GWG ( OR= 1. 088,95% CI: 1. 016-1. 675,P= 0. 038) and overweight /obesity-excessive GWG ( OR= 1. 498,95% CI: 1. 244-2. 017,P= 0. 046) were associated with higher risk of delivering macrosomia. Conclusions Prepregnancy BMI and GWG were associated with infant's birth weight and women were suggested to maintain their weight in recommended range before and during pregnancy.
7.Effect of Draconis Sanguis-containing serum on NGF, BDNF, CNTF, LNGFR, TrkA, GDNF, GAP-43 and NF-H expressions in Schwann cells.
Jin GU ; Xin-rong HE ; Ya-liang HAN
China Journal of Chinese Materia Medica 2015;40(7):1392-1395
OBJECTIVETo observe the effect of Draconis Sanguis-containing serum on the expressions of NGF, BDNF, CNTF, LNG-FR, TrkA, GDNF, GAP-43 and NF-H in Schwann cells, and investigate the possible mechanism of Draconis Sanguis to promote peripheral nerve regeneration.
METHODSD rats were randomly divided into 2 groups: the Draconis Sanguis group (orally administered with Draconis Sanguis-containing balm solution) and the blank group (equivoluminal balm) to prepare Draconis Sanguis-containing serum and blank control serum. Schwann cells were extracted from double sciatic nerves of three-day-old SD rats, divided into 2 groups: the Draconis Sanguis group and the blank control group, and respectively cultured with 10% Draconis Sanguis-containing serum or blank control serum. The mRNA expressions of NGF, BDNF, CNTF and other genes in Schwann cells were measured by RT-PCR analysis 48 hours later.
RESULTMost of the Schwann cells were bipolar spindle and arranged shoulder to shoulder or end to end under the microscope and identified to be positive with the immunocytochemical method. To compare with the blank group, mRNA expressions of NGF, LNGFR, GDNF and GAP-43 significantly increased (P < 0.01). Whereas that of BDNF decreased significantly (P < 0.05), and so did that of TrkA, CNTF (P < 0.01), with no remarkable difference in NF-H-mRNA.
CONCLUSIONTraditional Chinese medicine Draconis Sanguis may show effect in nerve regeneration by up-regulating mRNA expressions of NGF, LNGFR, GDNF and GAP-43 and down-regulating mRNA expressions of TrkA, BDNF and CNTF.
Animals ; Arecaceae ; chemistry ; Brain-Derived Neurotrophic Factor ; genetics ; metabolism ; Cells, Cultured ; Ciliary Neurotrophic Factor ; genetics ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; GAP-43 Protein ; genetics ; metabolism ; Gene Expression ; drug effects ; Glial Cell Line-Derived Neurotrophic Factor ; genetics ; metabolism ; Male ; Nerve Growth Factor ; genetics ; metabolism ; Nerve Regeneration ; drug effects ; Neurofilament Proteins ; genetics ; metabolism ; Rats ; Rats, Sprague-Dawley ; Receptor, trkA ; genetics ; metabolism ; Schwann Cells ; drug effects ; physiology ; Serum ; chemistry
8.Study on expression of NF-κB/p65 in nasal NK/T cell lymphomas
Qunying LIANG ; Aiju FENG ; Sen HE ; Xiuqin LIU ; Ya LIU
Journal of Chinese Physician 2009;11(4):477-479
Objective To investigate the expression of NF-κB/p65 in nasal NK/T cell lymphomas. Methods Immunohistochemis-try and TUNEL were used to study the expression of NF-KB/p65 and cell apoptosis in 23 nasal NK/T cell lymphoma samples and 14 benign lymph node lesions. Results The NF-KB/p65 positive rates were 43.5% (10/23). The expression of NF-κB/p65 was negative correlated with apoptotic index among 23 nasal NK/T cell lymphomas(P <0. 05). The mean survival period in patients expressed NF-KB/p65 was sig-nificantly shorter than that in negative group(P <0. 05). Conclusions Apoptosis inhibited by overexpression of NF-κB/p65 might be in-volved in the development of nasal NK/T cell lymphoma. NF-κB/p65 expression may be an unfavorable prognostic factor of nasal NK/T cell lymphoma.
9.Expression of XIAP and survivin and its significance in diffuse large B-cell lymphoma
Qunying LIANG ; Aiju FENG ; Xiuqin LIU ; Sen HE ; Ya LIU
Cancer Research and Clinic 2010;22(10):689-691
Objective To investigate the expression of XIAP and survivin and its significance in diffuse large B-cell lymphoma. Methods The expression of XIAP and survivin were detected by immunohistochemistry in 49 patients with diffuse large B-cell lymphomas. Results The positive rate of XIAP and survivin in cases of DLBCL were 40.8%(20/49) and 44.9%(22/49) respectively, which was higher than that of benign lymph node pathological changes (P <0.05). The expression of XIAP in DLBCL positively correlated with the expression of surviving (r =0.382, P =0.01). Moreover, the mean survival period in DLBCL expressing XIAP was shorter than the XIAP-negative group. Conclusion The up-regulation of expression of XIAP may play an important role in the development of DLBCL, and may cooperate with the expression of survivin in apoptosis pathway. Furthermore, the expression of XIAP might be a new unfavorable prognosis factor of DLBCL.
10.Sophoridine inhibits NF-kappaB signaling pathway activation in kidney tissue of endotoxemia mice.
Ling HUANG ; Jianning XIE ; Jinping LIANG ; Yunhong LI ; Ya ZHOU
Acta Pharmaceutica Sinica 2011;46(9):1072-7
This study is to investigate the effects of sophoridine on NF-kappaB signaling pathway in kidney tissue of endotoxemia mice and the mechanism involved. BALB/c mice were challenged with lipopolysaccharide (LPS) caudal vein injection, then sophoridine was administered by intraperitoneal injection. Totally 50 mice were divided into 5 groups: control group, LPS model group, sophoridine treatment 12 mg x kg(-1) group, 6 mg x kg(-1) group and 3 mg x kg(-1) group. All animals were sacrificed at 6 hours after treatment. Kidney and blood samples were harvested. IKKbeta mRNA and TNF-alpha mRNA expression of renal tissue was measured by the reverse transcription polymerase chain reaction (RT-PCR), and phosphorylation IKKbeta protein (pIKKbeta) was detected by immunohistochemistry. NF-kappaB P65 protein expression and distribution of renal tissue were observed by Western blotting and immunofluorescence laser confocal microscopy. Serum TNF-alpha level was detected by radioimmunoassay. The results showed that the sophoridine significantly reduced the expression of IKKbeta mRNA and pIKKbeta protein, and inhibited the expression of NF-kappaB P65 protein and decreased the entry nuclear rate of NF-kappaB P65 in the renal tissue of endotoxemia mice. Thereby the renal TNF-alpha mRNA expression and serum TNF-alpha level were significantly reduced. These results suggest that sophoridine could inhibit inflammatory reaction induced by LPS through inhibiting activation of NF-kappaB signaling pathway.