1.Research progress of the correlation between metabolic syndrome and coronary atherosclerosis
Chinese Journal of cardiovascular Rehabilitation Medicine 2016;25(2):220-223
Metabolic syndrome (MS)is a clinical syndrome featured by glucose and lipid metabolic disorders,hyper- tension and obesity etc.,whose key links are insulin resistance and abdominal obesity.MS is closely related with cor- onary atherosclerosis,every link of MS can lead to occurrence and development of atherosclerosis.The present arti- cle mainly stated research progress of the correlation between MS and coronary atherosclerosis in recent years.
2.Fatigue rupture study of HL-3 Buccal Multiloops for simulation of oral movements
Yu PAN ; Lu HOU ; Shiqian XU
Chinese Journal of Tissue Engineering Research 2013;(38):6747-6752
BACKGROUND:Concerning the problem of the ruptured phenomenon in clinic work of HL-1 and HL-2 Buccal Multiloops removable appliance, we invented HL-3 Buccal Multiloops.
OBJECTIVE:Through the Buccal Multiloops Fatigue Testing Machine which can imitate oral movements, to compare the fatigue strength of the HL-2 and HL-3 Buccal Multiloops in the same condition.
METHODS:A pair of the HL-2 or HL-3 Buccal Multiloops with the completely symmetrical size, symmetrical height and symmetrical direction was fixed on the Buccal Multiloops Fatigue Testing Machine which could simulate oral movements, then keep the Buccal Multiloops Fatigue Testing Machine working until any Buccal Multiloops broke. The cyclic loading times of this pair Buccal Multiloops was recorded. Scanning electron microscope was used to observe the appearance of broken end of the Buccal Multiloops.
RESULTS AND CONCLUSION:The cyclic loading times of HL-3 Buccal Multiloops were more than HL-2 Buccal Multiloops (P < 0.01), suggesting that HL-3 Buccal Multiloops has stronger fatigue strength than HL-2 Buccal Multiloops. Scanning electron microscope observation showed that the fractures of HL-2 and HL-3 Buccal Multiloops al had the typical fatigue fracture morphology, indicating that the rupture of HL-2 and HL-3 Buccal Multiloops belongs to fatigue fracture. However, HL-3 Buccal Multiloops exhibited bigger crack compared with HL-2 Buccal Multiloops, the presence of running-in region, suggesting that HL-3 Buccal Multiloops reduced the probability of fatigue fracture and prolonged the time of fatigue fracture.
3.Effect of nursing intervention on the incidence of complications caused by intracerebral nenwrrhagic
Yuhua XU ; Dianzhen HOU ; Enmu PAN
Chinese Journal of Practical Nursing 2006;0(13):-
To study the effect of nursing intervention on the incidences of complications caused by intracerebral hemorrhage. Methods One hundred and fifty two inpatients of intracere-bral hemorrhage were randomly divided into nursing intervention group and control group. The effects of the two groups were compared. Results The control group was higher than the nursing intervention group on the incidences of complications in constipation and hypostatic pneumonia and the average inpa-tient days(P
4.Clinical diagnosis and treatment progress of overgrowth in children and adolescents
Jiatong HOU ; Hui PAN ; Huijuan ZHU
Chinese Journal of Applied Clinical Pediatrics 2016;(4):316-318
Overgrowth in children and adolescents are not rare.The cause of overgrowth includes physiological and pathological growth accelerating.Physiological overgrowth contains familial tall stature and obesity.Pathological o-vergrowth includes endocrine metabolism diseases,chromosomal abnormalities,and a variety of genetic syndromes.Most patients were neglected.The standardized diagnosis and treatment for overgrowth is especially essential.In this review, the etiology and the progress of diagnosis and treatment for overgrowth were concluded in children and adolescents.
5.The value of Rome Ⅲ criteria in diagnosis and differentiation of functional dyspepsia
Jingjing TONG ; Qi PAN ; Xiaoyang GAO ; Xiaohua HOU
Chinese Journal of Digestion 2009;29(1):25-28
Objective To evaluate the sensitivity and specificity of Rome Ⅲ criteria in diagnosis of functional dyspepsia (FD) and assess its value in differentiate FD from other organic diseases in upper gastrointestinal tract. Methods Four thousand nine hundred and sixty-two patients, who underwent gastroscopy from July to August 2006 and March to April 2007, were consecutively enrolled and interviewed face to face with a standard questionnaire. The patients who were diagnosed as FD were according to Rome Ⅲ criteria, and those who were diagnosed as upper gastrointestinal diseases, such as chronic erosive gastritis (CEG), gastric ulcer (GU), duodenal ulcer (DU) and gastric carcinoma (GC), were done by gastroscopy and pathology. The differences of clinical characteristics among these diseases were analyzed. Results The FD patients accounted for 7.58% (376/4962) with female in predominant (P = 0.000). The patient with CEG, GU, DU or GC accounted for 29.99% (1488/4962), 1.89% (94/4962),4.25% (211/4962) or 4.57% (227/4962), respectively, all with male in predominant (P<0.05). Further analysis indicated that the age of onset between patients with FD and DU was no difference, but was younger than those with other three diseases (P<0.05). The incidence of early satiation and postprandial in FD patients were higher than those in other patients (P<0.05). The incidence of belching, nausea and vomiting showed no difference among these patients(P>0.05). According to Rome Ⅲ criteria, the symptoms of epigastric pain, early satiation, postprandial fullness and epigastric burning had higher sensitivity and specificity (except epigastric burning)in diagnosing FD (P<0.05), with highest Youden index in epigastric pain (0.42) and postprandial fullness (0.46). Conclusion Rome Ⅲ criteria has high specificity and sensitivity in diagnosing FD, and also has an important value in differentiate FD from other organic diseases.
6.Diffusion tensor imaging for evaluating white matter fiber tracts in patients with mild traumatic brain injury
Lili HOU ; Feng HAN ; Deren WANG ; Zheng PAN
Journal of Practical Radiology 2016;32(3):339-342,349
Objective To study the changes of white matter fiber tracts in mild traumatic brain injury(mTBI)patients by using DTI technique on 3.0T MR system,and evaluate the clinical diagnostic value of DTI.Methods Thirty mTBI and 30 matched health-y controls underwent conventional CT,MRI and DTI examinations.FA values and ADC values in the genu of the corpus callosum, the splenium of the corpus callosum,bilateral internal capsule,the cingulum bundle,the bilateral superior longitudinal fasciculus and the inferior longitudinal fasciculus of mTBI were measured in mTBI patients and controls at acute phase,subacute phase,5 weeks and 3 months post-trauma.The temporal changes of MRI data were observed.Results The FA values in the part of the white mat-ter fiber tracts reduced in the acute and subacute phase in mTBI patients (all P <0.05)in relative to controls (all P <0.05),At 5 weeks and 3 months post-trauma,the FA values also slightly lower in patients than controls.As for the genu of the corpus callosum and the splenium of the corpus callosum,the FA values in mTBI patients increased slightly at the acute stage (all P >0.05),but de-creased at 5 weeks-3 months post-trauma phase,though there was no significantly difference(all P >0.05).ADC values significantly decreased in the acute and subacute phase in mTBI patients,while they recovered thereafter (all P >0.05).Conclusion The sensi-tivity of DTI in detecting the lesions of mild traumatic brain damage is high,and it can display the damage of white matter.DTI could play an important role in the diagnosis of mTBI.
7.The Effects of Cangfu Daotan Decoction on the Expression of oatp4a1 and Level of Sex Hormone in the Endometrium and Ovary of Rats with Obesity-type Polycystic Ovarian Syndrome
Aizhen PAN ; Kefang CHEN ; Xiangping HOU ; Jianjun LI
China Pharmacy 2015;(25):3473-3475,3476
OBJECTIVE:To explore the effects of Cangfu daotan decoction on expression of organic anion transporting poly-peptide(oatp4a1)and level of sex hormone in the endometrium and ovary tissues of rats with obesity-type polycystic ovarian syn-drome(PCOS). METHODS:Obesity-type PCOS rat models were established. 50 rats were randomized into a normal control(iso-metric normal saline)group,a model(isometric normal saline)group,a metformin(0.043 g/kg)group and Cangfu daotan decoc-tion high-dose and low-dose [5.68 and 1.42 g(medicinal materials)/kg] groups. The rats were given drugs ig once a day for 14 con-secutive days. The expression of oatp4a1 protein in the endometrium and ovaries of the rats was determined by ECL and Western blot. The levels of luteinizing hormone(LH),follicle stimulating hormone(FSH),testosterone(T)and estradiol(E2)in rat’s se-rum were detected by ELISA. RESULTS:Compared to the normal control group,those in the model group had weaker expression of oatp4a1 protein in the endometrium and ovaries,higher levels of serum LH,LH/FSH and T,lower levels of serum FSH and E2. There were statistical significances(P<0.01). Compared to the model group,those in metformin group,Cangfu daotan decoction high-dose and low-dose group had higher expression of oatp4a1 protein in the endometrium and ovaries,lower levels of LH/FSH and T,higher levels of serum E2;those in metformin group and Cangfu daotan decoction high-dose group had lower levels of serum LH,higher levels of serum FSH. There were statistical significances(P<0.01 or P<0.05). CONCLUSIONS:Cangfu daotan decoc-tion can increase the expression of oatp4a1 in the endometrium and ovaries of obesity-type PCOS model rat,alleviate phlegmy dampness and regulate the level of sex hormone.
8.Correlation between methylenetetrahydrofolate reductase rs4846049 G/T polymorphism and ischemic stroke in a Chinese Han population
Rongyao HOU ; Xiaoyan ZHU ; Shunchang SUN ; Ruiyou GUO ; Xudong PAN
International Journal of Cerebrovascular Diseases 2016;24(8):709-714,715
Objective To investigate the correlation between methylenetetrahydrofolate reductase (MTHFR) gene 3 '-untranslated region rs4846049 G/T polymorphism and risk of ischemic stroke in a Chinese Han population. Methods A total of 396 patients with ischemic stroke and 378 healthy subjects (control group ) were selected using a case-control study design. Large artery atherosclerosis and small artery occlusion in the case group were 268 and 128 cases, respectively. Polymerase chain reaction-restriction fragment length polymorphism and the direct sequencing method were used to detect MTHFR gene rs4846049 G/T polymorphism. Results As compared to the GG genotype, the TT genotype significantly increased the risk of ischemic stroke (odds ratio [OR] 2. 87, 95% confidence interval [CI] 1. 43-5. 76;P=0. 003). Compared with G allele, T allele significantly increased the risk of the disease (OR 1. 62, 95% OR 1. 28-2. 06; P< 0. 001 ). Subgroup analyses showed that the rs4846049 G/T polymorphism could significantly increase the onset risks of LAA and SAO subtype stroke (all P<0.05). Conclusions MTHFR gene rs4846049 G/T polymorphism may be associated with the increased susceptibility to ischemic stroke in the Chinese Han population. The T allele may be a genetic risk factor for ischemic stroke in the Chinese Han population.
9.Effects of different duration of sevoflurane anesthesia in neonatal period on long-term cognitive func-tion and hippocampal synaptic plasticity in rats
Xuelian PAN ; Bo ZHAO ; Yun XIAO ; Jiabao HOU ; Zhongyuan XIA
Chinese Journal of Anesthesiology 2016;36(9):1085-1088
Objective To investigate the effects of different duration of sevoflurane anesthesia in the neonatal period on the long?term cognitive function and hippocampal synaptic plasticity in rats. Methods Twenty?four pathogen?free healthy Sprague?Dawley rats of both sexes, aged 7 days, weighing 12-16 g, were divided into 3 groups ( n=8 each) using a random number table: control group ( group C) , sevoflu?rane anesthesia for 2 h group ( group S1 ) , and sevoflurane anesthesia for 6 h group ( group S2 ) . Group S1 and group S2 inhaled 2% sevoflurane for 2 and 6 h, respectively. Morris water maze test was performed at 30 days after the end of anesthesia ( postnatal day 37) to assess the cognitive function. After the end of the test, the rats were sacrificed, and hippocampi were isolated for determination of the expression of brain?de?rived neurotrophic factor ( BDNF) , postsynaptic density?95 ( PSD?95) and synapsin 1 in hippocampal tis?sues by Western blot. Results Compared with group C, the escape latency on 4th and 5th days of the test in group S1 and on 2nd-5th days of the test in group S2 was significantly prolonged, and the frequency of crossing the original platform was significantly decreased, and the time of staying at the platform quadrant was significantly shortened in S1 and S2 groups, the expression of BDNF, PSD?95 and synapsin 1 in hipp?ocampal tissues was significantly down?regulated in group S2 (P<0?05), and no significant change was found in the expression of BDNF, PSD?95 and synapsin 1 in hippocampal tissues in group S1 ( P>0?05) . Compared with group S1 , no significant change was found in the escape latency and frequency of crossing
the original platform (P>0?05), the time of staying at the platform quadrant was significantly shortened, and the expression of BDNF, PSD?95 and synapsin 1 in hippocampal tissues was significantly down?regula?ted in group S2 ( P<0?05) . Conclusion Short?time and long?time sevoflurane anesthesia both can induce long?term cognitive dysfunction in the neonatal period, and the severity is aggravated with prolonged anes?thesia; the partial mechanism is related to inhibition of the synaptic plasticity of hippocampal neurons of rats.
10.Recent advances and perspective in the study of the nano-reinforcing materials for molecular imprinting of proteins.
Zhihui WU ; Miaoling CHAI ; Jiapeng HOU ; Jun PAN
Acta Pharmaceutica Sinica 2015;50(1):15-20
Molecular imprinting technique (MIT) involves the synthesis of polymer in the presence of a template to produce complementary binding sites in terms of its size, shape and functional group orientation. Such kind of polymer possesses specific recognition ability towards its template molecule. Despite the rapid development of MIT over the years, the majority of the template molecules that have been studied are small molecules, while molecular imprinting of proteins remains a significant yet challenging task due to their large size, structural flexibility and complex conformation. This review, we summarized the research findings over the past years, and discussed the nano-reinforcing materials used to prepare molecular imprinting of proteins and the perspective of these nano-reinforcing materials.