2.Genotype and phenotype polymorphisms of NAT2 and CYP2E1 in the Han Chinese pediatric population.
Fang LIU ; Qing MIAO ; Wei-Wei JIAO ; Jing XIAO ; Lin SUN ; Chen SHEN ; Xi-Rong WU ; Dan SHEN ; Qing-Qin YIN ; A-Dong SHEN
Chinese Journal of Contemporary Pediatrics 2012;14(5):353-358
OBJECTIVEN-acetyltransferase 2 (NAT2) and cytochrome P450 2EI (CYP2E1) play a crucial role in the drug metabolic process. The aim of this study was to understand the genotype and phenotype polymorphisms of NAT2 and CYP2E1 in the Han Chinese pediatric population in order to provide a theoretical basis for individualized drug treatment.
METHODSA total of 341 (211 males and 130 females) randomly sampled Han Chinese children, aged from 2 months to 14 years, were enrolled in this study. Genotyping was carried out by PCR method, and metabolic phenotypes were identified.
RESULTSIn this study population, wild genotype was found as a major genotype in seven SNPs of NAT2, rs1801279, rs1041983, rs1801280, rs1799929, rs1799930, rs1208 and rs1799931. The frequency of NAT2 fast metabolism was highest (61.3%), followed by middle to slow metabolism (34.1%). Wild genotype also predominated in the four SNPs of CYP2E1 (rs2031920, rs3813867, rs6413432 and rs72559720) named as CYP2E1*5, *6 and *2, with a frequency of 61.3%, 60.1% and 99.4% respectively. As the relationship between CYP2E1 genotype and phenotype was unknown, phenotyping of CYP2E1 was not done.
CONCLUSIONSThe important SNPs of NAT2 and CYP2E1 are predominantly wild genotype in the Han Chinese pediatric population. Fast metabolic phenotype predominates in important SNPs of NAT2.
Adolescent ; Arylamine N-Acetyltransferase ; genetics ; Child ; Child, Preschool ; China ; ethnology ; Cytochrome P-450 CYP2E1 ; genetics ; Female ; Genotype ; Humans ; Infant ; Infant, Newborn ; Male ; Phenotype ; Polymorphism, Single Nucleotide
3.Study on intra-retinal layers imaged with ultra - high resolution optical coherence tomography
Su-Zhong, XU ; Sheng-Hai, HUANG ; Qing-Kai, MA ; De-Xi, ZHU ; Mei-Xiao, SHEN
International Eye Science 2014;(8):1494-1497
To evaluate the automated segmentation algorithm for detection of intra - retinal layers to process images obtained from ultra- high resolution optical coherence tomography ( OCT ) . Graph theory and the shortest path search based on dynamic programming were applied to automatically segment the 8 intra - retinal layers. We experimentally verified the accuracy and reliability of the algorithm. The results showed that the intra-retinal layer boundaries between automated and manual segmentations matched well. The algorithm successfully segmented the intra- retinal layers in glaucoma, high myopia, and retinitis pigmentosa patients. The proposed automatic segmentation for intra-retinal layers provides a promising tool for quantitative analysis in clinical diagnosis and treatment.
4.Effect of Hematopoietic Growth Factors in Placenta Chorionic Villi and Umbilical Cord Blood on Placenta Hematopoiesis
hui, YAO ; hai-yan, XU ; bo-jun, SHEN ; xiao-ling, BAI ; jin -guang, CAI ; qing, SHI
Journal of Applied Clinical Pediatrics 1992;0(06):-
Objective To study the role of hematopoietic growth factor(HGF)of placenta chorionic villus in fetal hematopoiesis during embryo ontogeny by observation of the appearance time and the content changes with the fetal growth, which was compared with HGF in cord blood. Methods Thirty embryo villus (2 g each) and 30 cord blood (2 mL each) were collected separately from early pregnant stage(6- 8 weeks), middle pregnant stage(16-22 weeks)and late pregnant stage (37-42 weeks). The levels of HGF were detected by enzyme - linked immunosorbent assay. Results HGF were produced on the early pregnant stage and the content of FL-T3,IL-3 increased gradually.There were significantly differences at different stages(P
5.The changes of protein and lipid metabolism in patients with active inflammatory bowel disease
Jun SHEN ; Qing CAI ; Zhihua RAN ; Yao ZHANG ; Xiaotian ZHOU ; Hongmin YIN ; Shudong XIAO
Chinese Journal of Digestion 2008;28(5):318-322
Objective To compare the difference of protein and lipid metabolism between patients with inflammatory bowel disease and healthy controls,and to investigate the association of these changes with disease activity and location of the lessions.Methods The retrospective cohort study was carried out.The data of protein and lipid metabolisms collected from 195 patients with ulcerative colitis,76patients with Crohn's disease and 97 healthy controls during 1995 to 2007 were analyzed.Disease activity were evaluated using simple clinieal colitis activity index and simple index of Crohn's disease activity.The erythrocyte sedimentation rate(ESR)and C-reactive protein(CRP)were measured.Results Serum levels of ESR in patients with ulcerative colitis were negatively linear correlated with serum levels of albumin/globulin ratio(β=-0.521,P<0.01)and positively linear correlated with serum levels of α2globulin(β=0.319,P<0.01).Serum levels of globulin in patients with Crohn's disease were positively linear correlated with serum levels of ESR(β=0.558,P<0.01)and CRP(β=0.424,P=0.01).In ulcerative colitis,serum levels of albumin/globulin ratio,albumin and total cholesterol were significantly higher in patients with proctosigmoiditis than those in patients with lesions at other locus(P=0.003,0.005,0.038,respectively).In Crohn's disease,serum level of globulin was significantly higher in patients with lesions only at colon than that in patients with lesions only at small bowel(P=0.029).Conclusions Serum levels of albumin/globulin ratio and α2-globulin can be predictors of inflammatory activity in patients with ulcerative colitis.The increasing serum globulin may predict the progression of disease activity in patients with Crohn's disease.The nutritional deficiency is more critical in patiens with small bowel involvement than those with colon involvement.
6.Analysis of Chinese and foreign medical education evaluation model
Yuqi QIAO ; Qing ZHENG ; Fangyuan CHEN ; Xiao LIANG ; Jun SHEN ; Tianrong WANG ; Zhihua RAN
Chinese Journal of Medical Education Research 2012;11(5):454-456
Assessment mode is a bottleneck in medical education reform nowadays.Although traditional assessment tools,such as written examination,are still widely used in medical education assessments,they have obvious limitations.With the enhancement of requirements in physicians' abilities,assessments on some basic abilities of physicians are still insufficient.The United States and Europe not only focus on the curriculum reform but also the development of appropriate assessment tools,therefore,some new assessment tools are invented.These assessment tools are applicable to the formative assessment and are student-centered,being able to promote the development of education and provide new options for medical education assessments.
7.4-hydroxybenzyl aldehyde can prevent the acute cerebral ischemic injury in rats
Bin XIANG ; Chun XIAO ; Ting SHEN ; Shi JIANG ; Qing LIN ; Xiufang LI
Chinese Traditional Patent Medicine 2017;39(8):1572-1576
AIM To investigate the anti-neuroinflammation effects of 4-hydroxybenzyl aldehyde (4-HBAL) from Gastrodia elata Blume on acute cerebral ischemic injury in rats and its nechanism of action.METHODS The rat model of acute cerebral ischemic injury was induced by injecting arachidonic acid via intracarotid artery.Brain tissue samples were taken from the animals 3 h after the model of acute cerebral ischemic injury.Tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β) were detected in brain tissue to evaluate the effects of 4-HBAL in vivo.Lipopolysaccharid (LPS)-induced activation of BV-2 microglia cells model was used to explore the anti-neuroinflammation mechanism of 4-HBAL.RESULTS The experimental results showed that 4-HBAL had a significant protective effect on acute cerebral ischemic injury.It could significandy decrease the contents of tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β),and obviously inhibit the production of nitric oxide (NO),prostaglandin E2 (PGE2) and TNF-α in LPS-stimulated BV-2 cell,and increase the production of interleukin-10 (IL-10) and transforming growth factors-β (TGF-β) in BV-2 cell.CONCLUSION The mechanism of 4-HBAL may be related to the suppression of the excessive activation of microglia after cerebral ischemia and the promotion of the transformation of microglia into anti-inflammatory phenotype.
8.Combined use of MRI and 1 H proton magnetic resonance spectroscopy on the detection of brain metabolites and different brain areas of volume in small for gestational age
Gangming XIAO ; Lifang LIU ; Mei JIANG ; Bixian SHEN ; Jingwen XIE ; Xiaodong LI ; Qing TIAN
Chinese Pediatric Emergency Medicine 2015;22(4):241-244,248
Objective By 1 H magnetic resonance spectroscopy( 1 H MRS) ,small for gestational age (SGA)and appropriate for gestational age(AGA) as the detection of brain metabolites and MRI plus soft-ware measurement in different brain areas of volume,investigate its cerebral metabolites and the changes of brain in different parts of the volume and significance. Methods Select 88 patients eligible infants, SGA group of 27 cases and AGA group of 21 cases of premature infants;SGA group of 22 cases and AGA group of 18 cases of term infants. Preterm infants with a gestational age of 32 to 36 weeks,term infants with a gesta-tional age of 37 to 41 weeks. Check time between 4 to 7 days old. Calculation of cerebrum volume,cerebellar volume and cerebrospinal fluid volume and intracranial volume,N-acetylaspartic acid(NAA),as 1H MRS area of metabolites measured right frontal choline compounds( Cho) and creatine compounds( Cr) wave,calcu-lation of Cho/Cr and NAA/Cho ratio of NAA/Cr. Results NAA/Cr,the cerebrum volume and intracranial volume of SGA in premature infants group,term infants group and mixed group were 0. 627 ± 0. 183,(2. 831 ±0. 199) ×105 mm3,(3. 178 ±0. 209) ×105 mm3;0. 706 ±0. 139,(3. 056 ±0. 217) ×105 mm3,(3. 411 ± 0. 212 ×105 mm3;0. 708 ± 0. 171,(2. 932 ± 0. 234) × 105 mm3,(3. 282 ± 0. 239) × 105 mm3,respective-ly. NAA/Cr,the cerebrum volume and intracranial volume of AGA in premature infants group,term infants group and mixed group were 0. 734 ± 0. 101,(2. 987 ± 0. 111) × 105 mm3,(3. 347 ± 0. 137) × 105 mm3;0. 805 ± 0. 106, ( 3. 228 ± 0. 284 ) × 105 mm3 , ( 3. 588 ± 0. 306 ) × 105 mm3; 0. 721 ± 0. 119, ( 3. 098 ± 0.240) ×105 mm3,(3.458 ±0.258) ×105 mm3,respectively. The data of SGA group were all lower than those in AGA group,which had significant difference(P<0. 05,respectively). In SGA group,NAA/Cr,the cerebrum volume and intracranial volume of premature infants group were all lower than those in term infants group,which had significant difference(P<0. 001,respectively). In SGA group,Cho/Cr,cerebellar volume and cerebrospinal fluid volume of premature infants group,term infants group and mixed group were[1. 653 ± 0. 343,(1. 816 ± 0. 119) × 104 mm3 ,(1. 651 ± 0. 235) × 104 mm3;1. 588 ± 0. 223,(1. 936 ± 0. 957) × 104 mm3,(1. 623 ± 0. 210) × 104 mm3; 1. 612 ± 0. 262,(1. 870 ± 0. 124) × 104 mm3,(1. 649 ± 0. 206) × 104 mm3 ,respectively. In AGA group, Cho/Cr, cerebellar volume and cerebrospinal fluid volume of premature infants group,term infants group and mixed group were 1. 531 ± 0. 226,(1. 872 ± 0. 159) × 104 mm3 ,(1. 731 ±0.280) ×104 mm3;1.528 ±0.107,(2.017 ±0.302) ×104 mm3,(1.648 ±0.169) ×104 mm3;1.583 ± 0.222,(1.939±0.244)×104mm3,(1.681±0.252)×104mm3,respectively.ThedataofSGAgrouphad no significant difference with corresponding AGA group(P >0. 05,respectively). In the premature infants groups,the NAA/Cho of SGA group(0. 401 ± 0. 737) was lower than in the AGA group(0. 506 ± 0. 116), which had significant difference(P=0. 000). In the term infants groups,the NAA/Cho of SGA group(0. 483 ±0. 605) was lower than in the AGA group(0. 472 ± 0. 987),which had no significant difference(P =0. 653). In the AGA groups,NAA/Cr,NAA/Cho,cerebellar volume and cerebrospinal fluid volume of pre-mature infants group and term infants group had no significant difference ( P>0. 05 ) . Both of the cerebellar volume and cerebrospinal fluid volume between the premature infants AGA group and premature infants AGA group had no significant difference(P>0. 05). Conclusion Neurons in the brain,the cerebrum volume,the cranial cavity volume and NAA/Cr of SGA was significantly lower than those of AGA,but Cho/Cr,cerebel-lar volume and cerebrospinal fluid volume of SGA and AGA had no significant difference. NAA/Cr in the brain and the cerebrum volume of SGA may be associated with low volume of small nerve mental retarda-tion,worthy of further study.
9.Clinical effect of early postoperation adjuvant intraperitoneal chemotherapy of locally advanced gastric cancer
Lin-Qing XI ; Xiao-Dong ZHANG ; Jie LI ; Jian LI ; Lin SHEN ;
Cancer Research and Clinic 2000;0(06):-
0.05).The most common toxicity was neutropenia and nausea.There are no serious nausea,damage of liver and kidney functions and grade 4 neutropenia in the study group.The side-ef- fects,in the study group,such as hemorrhage,infection,medicine outleakage,catheter obstruct,catheter slough,gastric-intestinal perforation,and fever did not appear.Conclusion Although this study was conduct- ed in a small number of patients and short time,compared with the control group,the study group had a ben- eficial effect in peritoneal recurrence after curative gastrectomy for advanced gastric cancer and had less side effect and good toleration.It played a role in enhancing 1-year overall survival rate.The combination of intra- venous and intraperitoneal chemotherapy after gastrectomy may have better treatment effect on gastric cancer than that of intravenous chemotherapy alone.The randomized controlled trials are required.
10.Study of symptoms in terminally ill patients with ovarian carcinoma
Xiao-Guang SUN ; Ming WU ; Shui-Qing MA ; Chun-Ying LI ; Li-Na JIN ; Keng SHEN ;
Chinese Journal of Obstetrics and Gynecology 2001;0(03):-
Objective To investigate symptom characteristics and their their prevalence in terminally ill patients with ovarian carcinoma.Methods A retrospective study was carried out based on clinical data of 98 terminally ill patients with ovarian carcinoma who died in our hospital during January 1995 to December 2004.Fifteen most common symptoms were analyzed with a focus on the followings:symptom incidence,survival time after symptom occurrence,regularity of symptom cluster,and common causes of death.Fifteen symptoms were:pain,cachexia,pleural effusion and ascites,dyspnea,fever,intestinal obstruction,renal failure,bone marrow depression,lung infection,hemorrhage,deep venous thrombosis (DVT),intestinal or pancreatic fistula,mycotic infection,jaundice and emergency conditions.Results (1)The most prevalent symptom was pleural effusion and ascites(63%),followed by pain(60%), cachexia(59%),dyspnea(52%)and intestinal obstruction(49 %).(2)The symptom which lasted longest survival time was mycotic infection(77 days),followed by intestinal or pancreatic fistula(75 days), intestinal obstruction(67 days),pain(60 days)and eachexia(60 days).Symptoms such as bone marrow depression,renal failure,dyspnea and emergency conditions were comparatively critical associated with shorter survival times(14,13,12,7 days,respectively).(3)Terminal symptoms occurred typically in clusters,with 4.9?1.5 symptoms per case.Of 98 cases,84 cases(86%)had 4 or more symptoms,with the median survival time of 63 days from the last day of anti-cancer therapy,and a slow death process.The remaining 14 cases(14%)with 3 or fewer symptoms survived only 25 days,of which 10 cases(71%)died of emergency diseases.The survival time for two groups was significantly different(P