1.Relationship between Serum Advanced Glycation End Products Levels of Diabetic Mothers and Adverse Cardiovascular Function of Newborn Infants
hong-mei, SHAO ; guo-sheng, LIU
Journal of Applied Clinical Pediatrics 2004;0(12):-
Objective To explore the relationship between serum advanced glycation end products(AGEs) levels in gestation diabetic mother(GDM) and cardiovascular function of newborn infants.Methods Sixty mid-gestation GDM and 72 late-gestation GDM fulfilling the inclusion criteria were recruited,72 mid-gestation and 80 late-gestation mothers with no pregnancy complications were collected as controls.Fasting blood glucose and serum AGEs levels were analyzed in each group.Clinical data of GDM and their babys were collected.Accor-ding to cardiovascular function of neonates,these neonates were divided into 2 groups:normal neonate group with normal cardiovascular function and anormal neonate group with anormal cardiovascular function.Maternal serum AGEs levels,blood glucose between mid-gestation groups and late-gestation groups were compared.Factors which affected the prevalence of complications of fetal outcome in GDM were analyzed.Results 1.Mid-gestation and late-gestation GDM groups had higher serum AGEs levels and fasting blood glucose compared with those of their respective controls(Pa0.05).3.Abnormal fetal outcome in GDM had significantly higher maternal serum AGEs levels than that in controls with normal fetal outcome(P
2.Effects of Fluid Resuscitation on Cerebral Protection in A Rat Model of Traumatic Head Injury Complicated with Hemorrhagic Shock
Hong-xun MEI ; Shao-dong ZHANG ; En-zhen WANG ; Hong WANG
Chinese Journal of Rehabilitation Theory and Practice 2006;12(5):396-398
ObjectiveTo compare the effects of normal saline (NS), 10% hydroxyethyl starch (HES) and hypertonic-hyperoncotic solution (HHS,7.5% NaCl/10% HES) on regional cerebral blood flow (rCBF), brain edema and blood-brain barrier (BBB) in a rat model of traumatic head injury (THI) complicate with hemorrhagic shock. Methods60 SD rats were randomized into 5 groups: sham group (n=12), model group (n=12), NS group (n=12), HES group (n=12) and HHS group (n=12). rCBF and mean arterial pressure (MAP) were determined before and after THI, hemorrhagic shock and resuscitation. Cerebral water content and Evans Blue (EB) content were assessed 3 h after resuscitation.ResultsMAP and rCBF were restored to baseline values immediately after resuscitation in all resuscitated group and began to decrease 15 min, 30 min or 45 min later, respectively(P<0.05). 3 h after resuscitation, the brain water content was higher in NS group than those in sham or HHS group(P<0.05). EB contents of injured hemispheres were higher in model and NS group than those in HES or HHS group(P<0.05). ConclusionSmall-volume resuscitation with HHS can restore MAP and rCBF, decrease brain edema and improve BBB in a rat model of THI complicate with hemorrhagic shock.
3.Study on Xinyueshu spray drying assisted with copovidone and its effect on powder property.
Yan-Rong JIANG ; Zhen-Hai ZHANG ; Dong-Mei DING ; Hong-Mei YAN ; Shao-Ying HU ; Xiao-Bin JIA
China Journal of Chinese Materia Medica 2013;38(23):4067-4070
To study the application characteristics of copovidone (PVP-S630) in Xinyueshu extracts during the spray drying process, and its effect on such pharmaceutical properties as micromeritics and drug release behavior. PVP-S630 was added into Xinyueshu extracts to study on the spray drying, the effect of different dosages of PVP-S630 against the wall sticking effect of the spray drying, as well as the power property of Xinyueshu spray drying power and the dissolution in vitro behavior of the effective component of hyperoside. The results showed that PVP-S630 revealed a significant anti-wall sticking effect, with no notable change in the grain size of the spray drying power, increase in the fluidity, improvement in the moisture absorption and remarkable rise in the dissolution in vitro behavior of hyperoside. It was worth further studying the application of PVP-S630 in spray drying power of traditional Chinese medicine.
Absorption
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Desiccation
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methods
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Drug Compounding
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methods
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Drugs, Chinese Herbal
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chemistry
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Porosity
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Powders
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Pyrrolidines
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chemistry
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Vinyl Compounds
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chemistry
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Wettability
5.Multidetector CT of the coronary imaging:assessment of image quality and accuracy in detecting stenoses
Mei-Ping HUANG ; Qi-Shun LIU ; Hui LIU ; Chang-Hong LIANG ; Shao-Bin ZHANG ;
Chinese Journal of Radiology 2001;0(09):-
Objective To evaluate the image quality of 64-multi detector computed tomography (MDCT)and the clinical accuracy in detecting coronary artery lesions.Methods One hundred and five patients were studied by MDCT.The results were compared with invasive coronary angiography(ICA). Patients were excluded for atrial fibrillation,but not for high heart rate,coronary calcification,or obesity. MDCT was analyzed with regard to image quality and presence of coronary artery lesions.Results The data evaluation of the image quality was based on a total of 1365 segments(13 coronary segments for each patient),of which 1144 segments were considered to have diagnostic image quality,but 221 segments (16.2%)could not be sufficiently evaluated because of severe calcifications(153 segments)and motion artifacts(68 segments).The median calcium score[Agatston score equivalent(ASE)]was 154(range 0—1983).87 of the 105 patients had an ASE of less than 1,000[median 105(range 0—994)],and 18 patients had an ASE greater than 1000[median 1477(range 1115—1983)].For detecting lesions with 50% or greater narrowing(without any exclusion criteria),the overall sensitivity,specificity,positive predictive value,and negative predictive value were 85.7%,97.9%,93.0%,and 95.5%,respectively. When limiting the number of patients to those with a calcium score of less than 1000 ASE,the threshold- corrected sensitivity for lesions with 50% or greater narrowing was 96.0%;specificity,98.9%;positive predictive value,95.3%;and negative predictive value,99.0%.Conclusion Our results indicate high quantitative and qualitative diagnostic accuracy of 64-slice MSCT in comparison to QCA in a broad spectrum of patients.
6.CT, MRI and clinical manifestations of Kasabach-Merritt syndrome in children
Hong SHAO ; Ming ZHU ; Yu-Hua LI ; Mei-Hua SHI ; Jing-Lei WANG ;
Chinese Journal of Radiology 1994;0(06):-
Objective To improve the awareness of the CT and/or MRI appearances and clinical presentations of Kasabach-Merritt syndrome(KMS),6 cases were reported.Methods The CT and/or MRI and clinical characters of 6 cases of KMS were reviewed and analyzed.Results Thrombocytopenia,and consumption coagulopathy were presented in all 6 cases.The paravertebral mass of posterior mediastinum, right pericardial lesion,skin and soft tissue of left arm were shown as iso-,hypointensity on T1-weighted image,iso-,hyper-intensity on T_2-weighted image,and with heterogeneous enhancement after contrast administration in three cases.Splenomegaly was presented in one case,it showed homogenous hypoattenuation on unenhanced CT,and diffused heterogeneous enhancement after contrast administration. On MRI,spleen was shown as hypointensity on T_1-weighted image,hyperintensity on T_2-weighted image, and with heterogeneous enhancement after contrast administration.There were lesions in both bones and spleen in one case.Osteopenia and thinned cortex were shown on the metaphyses of upper and lower extremities.Spleen enlarged and showed multifocal hypoattenuation lesions,the peripheral region enhanced on the early phase,and some of the lesions filled on the delayed phase after the contrast administration.One case showed huge hypoattenuation lesion in the left lobe of liver with gradually filling of the mass after peripheral enhancement.Conclusion Thrombocytopenia and consumption coagulopathy suggest the entity of extensive hemangioma.Splenomegaly with diffuse or focal hypoattenation or hypointensity in MRI infers the diagnosis of hemangioma.
7.Construction of prokaryotic expression vector, expression and purification of ginseng Cu/Zn superoxide dismutase.
Hong-Mei LIN ; Ze-Yu WANG ; Yue SHAO ; Xiao-Ye QIN ; Shi-Chao LIU ; Xin ZHANG ; Li-Min YANG
China Journal of Chinese Materia Medica 2013;38(23):4052-4055
The total RNA was extracted from ginseng leaves of Panax ginseng. The Cu/Zn-SOD gene was amplified via RT-PCR and the pET-28(a)-Cu/Zn-SOD expression vector was constructed. The pET-28 (a)-Cu/Zn-SOD recombinant plasmid was transformed into Escherichia coli BL21 (DE3) competent cells and was induced by IPTG in order to select optimal induction of expression conditions. The target protein was purified by the nickel ions (Ni ) affinity chromatography and the target protein enzyme activity was determinated by the xanthine oxidase method. The similarity of the Cu/Zn-SOD gene sequences and the Cu/Zn-SOD gene sequences of Korean ginseng in NCBI was 99. 00%. The target protein expression level was about 44.42%, and the molecular weight was 16.30 kDa after the pET-28(a)-Cu/Zn-SOD recombinants were induced by IPTG. The purified Cu/Zn-SOD protease activity reached 10,596.69 U x mg(-1). The P. ginseng pET-28(a)-Cu/Zn-SOD prokaryotic expression vector was built by the method of molecular biology, which provided the foundation for studying the Cu/Zn-SOD biology function.
Cloning, Molecular
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Escherichia coli
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genetics
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Gene Expression
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Genetic Engineering
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methods
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Genetic Vectors
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genetics
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Panax
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enzymology
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genetics
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Sequence Analysis
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Superoxide Dismutase
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genetics
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isolation & purification
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metabolism
8.The role of cytokines in lymphoma with anemia.
Ting WANG ; Mei-Feng TU ; Jun ZHU ; Wen ZHENG ; Zong-Hong SHAO
Journal of Experimental Hematology 2013;21(2):392-395
This study was purposed to investigate the role of cytokines in pathogenesis of lymphoma-associated anemia. The levels of IFN-γ, IL-1β, IL-6, TNF-α and EPO in serum from 45 lymphoma patients and 12 normal controls were detected by using ELISA, the EPOR level on bone marrow cells were detected by flow cytometry, the CFU-E of bone marrow cultured in vitro was counted under inverted microscope. The results showed that 25 (55.6%) out of 45 newly diagnosed lymphoma patients had anemia before diagnosis, 13 (28.9%) had anemia during therapy, 7 (15.5%)never had anemia. The IFN-γ and TNF-α levels in serum of patients with moderate and severe anemia were significantly higher than those in patients with mild anemia and without anemia as well as normal controls. The EPO, IL-6 and IFN-γ levels correlated negatively with Hb concentration in patients, the EPOR level in patients without anemia significantly higher than that in patients with anemia and normal controls. The bone marrow CFU-E amount in patients showed positive correlation with Hb and EPOR levels. It is concluded that the increased IFN-γ, TNF-α and IL-6 may contribute to the anemia in lymphoma, and yet the EPO and EPOR levels are elevated to balance negative regulatory effects on hematopoiesis and maintain normal hematopoiesis.
Adult
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Aged
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Anemia
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blood
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etiology
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pathology
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Case-Control Studies
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Cytokines
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blood
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Erythropoietin
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blood
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Female
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Humans
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Interferon-gamma
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blood
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Interleukin-1
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blood
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Interleukin-6
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blood
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Lymphoma
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blood
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complications
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pathology
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Male
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Middle Aged
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Receptors, Erythropoietin
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blood
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Tumor Necrosis Factor-alpha
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blood
9.Applications of nanomaterial-based drug delivery carriers in treating eye diseases
Yuan-Yuan, SUN ; Da-Dong, GUO ; Shao-Yu, LI ; Mei-Qing, CHEN ; Bin, LIU ; Hong-Sheng, BI
International Eye Science 2017;17(9):1671-1673
In view of the anatomical and physiological barrier of the ocular surface and the intraocular structure, the conventional ophthalmic agents cannot efficiently reach the lesion site.Currently, the different types of nanomaterials possess great advantages in delivering drugs due to their characteristics of small size, easy preparation, degradability, strong targeting and less irritation to biological tissue.As drug delivery carriers, nanomaterials have been widely used in ocular drug delivery so as to treat different types of eye diseases.In this paper, the applications of nanomaterials as drug delivery carriers in treating eye diseases are briefly reviewed.
10.Advances in the role of helper T cells in autoimmune diseases.
Xiao-Mei ZHANG ; Chun-Yan LIU ; Zong-Hong SHAO
Chinese Medical Journal 2020;133(8):968-974
Autoimmune diseases are primary immune diseases in which autoreactive antibodies or sensitized lymphocytes destroy and damage tissue and cellular components, resulting in tissue damage and organ dysfunction. Helper T cells may be involved in the pathogenesis of autoimmune diseases under certain conditions. This review summarizes recent research on the role of helper T cells in autoimmune diseases from two aspects, helper T cell-mediated production of autoantibodies by B cells and helper T cell-induced activation of abnormal lymphocytes, and provides ideas for the treatment of autoimmune diseases. The abnormal expression of helper T cells promotes the differentiation of B cells that produce autoantibodies, which leads to the development of different diseases. Among them, abnormal expression of Th2 cells and T follicular helper cells is more likely to cause antibody-mediated autoimmune diseases. In addition, abnormal activation of helper T cells also mediates autoimmune diseases through the production of abnormal cytokines and chemokines. Helper T cells play an essential role in the pathogenesis of autoimmune diseases, and a full understanding of their role in autoimmune diseases is helpful for providing ideas for the treatment of autoimmune diseases.