1.The analysis of glucose tolerance test results of pregnant woman in Nanjing Liuhe area
International Journal of Laboratory Medicine 2016;37(8):1065-1066,1069
Objective To analyse oral glucose tolerance test (OGTT) screening results of pregnant women in Liuhe District of Nanjing and understand the incidence of gestational diabetes mellitus(GDM) in the region .Methods From July 2014 to March 2015 ,1 308 cases of healthy pregnant women who received 75 g OGTT in Nanjing Liuhe People′s Hospital for 24 to 28 weeks were enrolled in the study .When people were with fasting plasma glucose ≥5 .1 mmol/L ,OGTT was not necessary for a diagnosis of GDM to be made .According to the American Diabetes Association′s diagnostic criteria for gestational diabetes ,the number of gesta‐tional diabetes and the detection rate was calculated .According to the pregnant women′s age ,they were divided into three groups :18- <25 years old (group A) ,25- <29 years old (group B) and ≥29 years old (group C) ,the GDM detection rate were compared statistically among groups .Results The total detection rate of GDM in the region was 7 .49% (98/1 308) .The rate of group A ,B and C were 5 .24% (20/382) ,6 .97% (48/689) and 12 .66% (30/237) respectively .The detection rate of GDM among different age groups were statistically different(χ2 =6 .477 ,P<0 .05).There was no statistically significant difference of detection rate between group A and group B (χ2 =1 .238 ,P>0 .05) .There was statistically significant difference between group A and group C in GDM detection rate(χ2 =10 .853 ,P<0 .05) ,and also group B and group C was significantly different(χ2 =7 .406 ,P<0 .05) .Conclusion If pregnant women were older than 29 years old ,the incidence of GDM increased significantly .
2.Advance of treatment for newly diagnosed multiple myeloma
Journal of Leukemia & Lymphoma 2008;17(5):391-394
Multiple myeloma is a plasma cell malignancy.At diagnosis,most patients are older than 65 years,In newly diagnosed myeloma patients younger than 65 years,high-dose of melphalan followed by autologous stem cell transplantation(ASCT)is regarded as the standard treatment.In elderly patients,usually older than 65 years,oral melphalan and prednisone(MP)has been considered as the standard regimen recently.However,the discovery of thalidomide,lenalidomide,and the proteasome inhibitor bortezomib will increase the effect of clinical treatment.This review will summarize literatures and focus on the treatment of newly diagnosed myeloma.
3.Regulatory effect of glycyrrhizin on the expression of interferon (IFN)-γ and tumor necrosis factor (TNF)-β in peripheral blood mononuclear cells of patients with alopecia areata
Chinese Journal of Dermatology 2011;44(12):877-879
Objective To observe the regulatory effect of glycyrrhizin on the expression of IFN-γ and TNF-β in peripheral blood mononuclear cells (PBMCs) of patients with alopecia areata.Methods PBMCs were obtained from 18 patients with mild alopecia areata,24 patients with severe alopecia areata and 20 normal human controls,and cultured with phytohemagglutinin (PHA) or the combination of PHA and glycyrrhizin for 24 hours.Then,reverse transcription (RT)-PCR was conducted to detect the mRNA expression of IFN-γand TNF-β in these cells.Results The mRNA expression levels of IFN-γand TNF-β in PBMCs were significantly higher in patients with severe alopecia areata than in those with mild alopecia areata and normal human controls (all P < 0.05),and higher in patients with mild alopecia areata than in normal human controls (both P < 0.05).A significant decrease was observed in the mRNA expressions of IFN-γ and TNF-β in the PBMCs from patients with alopecia areata after stimulation with the combination of PHA and glycyrrhizin (both P <0.05).Conclusion Glycyrrhizin can inhibit the expression of Th1-type cytokines and reverse Th1-type immune response.
4.Influence of gestational diabetes mellitus on pregnancy and delivery outcomes
International Journal of Laboratory Medicine 2017;38(1):66-67,70
Objective To explore the influence of gestational diabetes mellitus(GDM)on pregnancy and delivery outcomes.Methods 278 pregnant women with GDM were chosen as experimental group who underwent their antenatal care and delivery in Liuhe People's Hospital in Nanjing,according to the 75g oral glucose tolerance test(OGTT)performed in pregnant women at 24-28 pregnancy weeks from January 2014 to October 2015.Meanwhile,the other 278 healthy women were chosen as control group.The pregnancy and delivery outcomes of the two groups were compared.Results The 24-28 weeks' 3 time-point OGTT blood glucose (FPG,1 h PG and 2 h PG) (mmol/L) values of experimental group were 5.08±0.56,9.22±1.71 and 7.62±1.48 respectively,which were significant higher than that of control group:4.45 ± 0.43,7.76 ± 1.35,6.34±4 0.96 (P<0.05).The incidences of pregnancy-induced hypertension syndrome,premature rupture of membranes,premature birth,fetal distress,postpartum hemorrhage,macrosomia and cesarean delivery of experimental group were significantly higher than that in control group (P < 0.05).Conclusion GDM has a relatively large effect on pregnancy outcomes,causing serious complications of maternal and infant.Therefore,glucose metabolism during pregnancy should be surprised closely and education should be conducted to improve maternal and neonatal outcomes.
5.HSV AMPLICON-MEDIATED NEUROTROPHIN-3 TRANSDUCTION PREVENTS MOUSE SPIRAL GANGLION NEURONS FROM DAMAGE
Xiaowei CHEN ; Keli CAO ;
Acta Anatomica Sinica 2002;0(06):-
Objective To determine whether NT 3 overexpression could abrogate DDP toxicity in vitro . Methods We constructed a herpes simplex virus(HSV) amplicon vector to transduce a c myc tagged version of rat NT 3. In the HSVnt 3myc vector, the chimeric neurotrophin cDNA was placed under the transcriptional control of the CMVIE promoter. The resultant vector was packaged utilizing the recently developed helper virus free method. Results Transduction of NT 3myc in cultured mouse cochlear explants at a multiplicity of infection(MOI) of 0 25 resulted in production of NT 3 up to 3?g/L over a 48 hours period. The mouse cochlear explants were transduced with HSVnt 3myc or HSVmiap(control vector expressing the reporter gene, murine intestinal alkaline phosphatase) for 48 hours and the exposed to cisplatin for 48 hours.The cochlear explants transduced with HSVnt 3myc had a significantly greater number of SGN survival than the control group. NT 3 powerfully enhanced the process length and the density of SGNs.Conclusion These data demonstrate that the neurotrophic cDNA transduction via HSV amplicon helper free virus system can attenuate the ototoxic action of DDP on organotypic culture. The potency of NT 3 in protecting spiral ganglion neurons from degenerating suggests that neurotrophins might be useful for the prevention or treatment of hearing disorders. [
6.Impact of calcium-sensing receptor on hyperparathyroidism
Xiaowei WANG ; Zhiyong CHEN ; Huagang ZHU
International Journal of Surgery 2011;38(5):339-342
Calcium-sensing receptor(CaSR)is expressed in human parathyroid cells and renal tubular epithelial cells mainly.CaSR could control parathyroid hormone(PTH)secretion and the renal tubular's handing of the electrolytes and water.This receptor plays a central role in extracellular calcium homeostasis,and involves in the process of bone remodeling.The change of CaSR function,including anti-CaSR antibodies,CasR gene mutations or any part impairment in CaSR signaling pathway,not only results in the imbalaance of PTH and calcium homeostasis.but also relates to disorders of bone remodeling and renal tubular's mishandling in the electrolytes and water,which contribute to hyperparathyroidism.It makes possible clinical Use of cinacalcet in hyperparathyroidism in theory.
7.Absorbed dose response of Al2O3 dosimeter irradiated by 60Co γ spectrum source capture and collimators
Shaowen CHEN ; Qiang TANG ; Xiaowei LIU
Chinese Journal of Radiological Medicine and Protection 2009;29(1):91-93
Objective To investigated the absorbed dose response of Al2O3 dosimeter in water phantom irradiated by 60Co γ spectrum source. Methods The EGSnre simulation program code DOSRZnrc was used to calculate the absorbed dose of the Al2O3 dosimeter and that of the equivalent volume of water in the corresponding position, as well as the absorbed dose conversion factor, irradiated by 60Co photon beams in a water phantom. Simulations were done for a eylindrieal geometry dosimeter (diameter 0.4 cm and height 0.1 cm) and the dosimeter was placed at the centre of the water phantom at different depths. Results The average absorbed dose conversion factor is 1.143 ± 0.006 and changes little with the depth of the dosimeter in the water phantom, and the deviation is less than 1.0 %. Conclusion The absorbed dose response of Al2O3 dosimeter irradiated by 60Co γ spectrum source is steady and is independent on the depth of the dosimeter in water phantom in this research.
8.Clinical Observation of Alfacalcidol in Adjuvant Treatment of Bronchiolitis in Children
Jinni CHEN ; Dawei LI ; Xiaowei FENG
China Pharmacy 2017;28(6):756-758
OBJECTIVE:To explore the clinical efficacy and safety of alfacalcidol in the adjuvant treatment of bronchiolitis in children. METHODS:Data of 156 children with bronchiolitis were retrospectively collected and divided into observation group(78 cases) and control group (78 cases) by different medication. All children received oxygen inhalation,relieving asthma,antiviral and other conventional treatment,then control group inhaled Budesonide suspension 0.5-1.0 mg + Salbutamol aerosol 0.25 mL for atomization,bid,10 min every times,7-d was a course. Observation group additionally given Alfacalcidol soft capsule 0.010-0.015μg/(kg·d),3 times a week,3-month was a course. They were treated for 3 months. Clinical efficacy,improvement time of clinical symptoms and signs,levels of 25-(OH)D3 and serum LEP,IgA,IgG,IgM and IgE before and after treatment,and the incidence of adverse reactions in 2 groups were observed and compared. RESULTS:The total effective rate in observation group was signifi-cantly higher than control group,improvement time of cough,asthma,wheezing and moist rale were significantly shorter than con-trol group with statistical significansce (P<0.05) after 7-d treatment;after 3-month treatment,25-(OH)D3,IgA and IgG levels were significantly higher than before,and observation group was higher than control group,LEP and IgE levels were significantly lower than before,and observation group was lower than control group,with statistical significances(P<0.05). There was no sig-nificantly difference of the level of IgM in 2 groups before and after treatment. And there were no severe adverse reactions in 2 groups. CONCLUSIONS:Based on conventional treatment,alfacalcidol shows good efficacy in the adjuvant treatment of bronchiol-itis in children,which can obviously enhance immune function,reduce serum LEP level,then shorten remission time of clinical symptoms and signs,with less adverse reactions and good safety.
9.Expression of nm23 gene and its significance in heterotransplanted model of retinoblastoma in nude mice
Xiaowei ZHANG ; Danian CHEN ; Chengren LUO
Chinese Journal of Ocular Fundus Diseases 1996;0(01):-
Purpose To investigate nucleoside diphosphate kinase (NDPK ) expression of tumor metastasis suppressor gene nm23 in heterotransplanted model of retinoblastoma(RB) in nude mice,and analyse the correlation between the expression of nm23 gene and the formation and progression of heterotransplanted RB. Methods SP immunohistochemical method was used to detect the expression of nm23 gene product NDPK in 20 tumors of heterotransplanted RB model and normal retinal tissue. Results The negative staining of nm23/ NDPK was found in normal retinal tissue , whereas 100% expression rate in RB tumors with positive number of 48.73?2.37. No statistical significance of the expression of nm23/ NDPK was observed between the intraocular growth phase (I~Ⅲ grade) and invasive phase (Ⅳ~Ⅴ grade) in heterotransplantedRB tumors. Conclusion The function of nm23 gene as a tumor metastasis suppressor in heterotransplanted RB tumors was less prominent ,but it may play a role in carcinogenesis and progrssion of RB and may predict poor prognosis.
10.Two - step PCR - SSP genotyping for HLA - A locus and its comparison with serological typing results
Xiaowei LI ; Huiling LU ; Lixian/ CHEN
Chinese Journal of Forensic Medicine 2000;0(S1):-
Objective To identify routine forensic samples by genotyping method for HLA - A locus. Method A two - step PCR - SSP method was established. The first step is amplification with a pair of primers specific for all HLA - A alleles, the second step is amplification with primers specific for HLA - A30, A31, A33 respectively, using the first step amplification product as template. Secondly amplified PCR products were genotyped by electro-phoresis. Results 100 blood stains with a serological typing result of HLA - A30, A31 and A33 were tested with this method. The discrepancy rate between serological and genetic typing was 29%. Seminal stains, salivary stains reserved for 2 years and blood stains reserved for 18 years in room temperature gave satisfactory results. Conclusions It is better to replace serological typing by genetic typing. A two - step PCR - SSP genotyping method can be applied to forensic samples.