Diagnosis, Differential ; Female ; Humans ; Middle Aged ; Osteogenesis Imperfecta ; diagnosis ; therapy

Objective To study the prevalence of dilated cardiomyopathy and the quasi-latent Keshan disease in villages of non-endemic areas of six Keshan disease endemic provinces in China,and to provide reference values for proposing a elimination standard of keshan disease.Methods County,township and village was selected as the study area by using multi-stage sampling in non-Keshan disease areas of Sichuan,Shanxi,Henan,Shandong and in Keshan disease areas of Chongqing and Yunnan.In each county two townships were selected and in each township one village was chosen.The residents of the villages sampled were surveyed by questionnaire,physical examination,electrocardiogram (ECG) and cardiac echocardiography.Suspected dilated cardiomyopathy patients had chest X-ray.Dilated cardiomyopathy patients were diagnosed according to the criteria proposed by 2006 World Health Organization/International Society and Federation of Cardiology (WHO/ISFC).Results The number of investigated villages was 126 and 54 139 people were surveyed by questionnaire and clinical examination.Ten patients with dilated cardiomyopathy were found,the prevalence was 18.47/100 000(10/54 139),and its 95％ confidence interval was 18.11/100 000-18.84/100 000.A total of 197 patients with quasi-latent Keshan disease were found,the prevalence was 363.88/100 000 (197/54 139),and its 95％ confidence interval was 362.27/100 000-365.49/ 100 000.The prevalence of male quasi-latent Keshan disease was 353.34/100 000(83/23 490) and of female was 372.07/100 000(114/30 639).The number of subjects with normal and abnormal ECG was 45 222 and 8917,respectively,and the rate of abnormal ECG was 16.47％.The highest rate of abnormal ECG was 38.28％ (1585/4141) in Chongqing.The lowest rate of abnormal ECG was 8.10％ (1175/14 507) in Yunnan.The highest detection rate of T wave and ST segment changes was 4.67％ (2528/54 139).In abnormal ECG indices,the detection rate of Henan,Shandong and Chongqing was higher,and all of them were higher than 10.0％.Conclusions We suggest that the reference baselines of dilated cardiomyopathy and quasi-latent Keshan disease in Keshan disease areas of the six provinces in the south of China be 18.47/100 000 and 363.88/100 000,respectively.

Adult ; Female ; Humans ; Immunohistochemistry ; methods ; Male ; Meningeal Neoplasms ; immunology ; ultrastructure ; Meningioma ; immunology ; ultrastructure ; Microscopy, Electron ; Middle Aged ; Paraganglioma ; physiopathology

Objective To investigate the utility of diffusion weighted imaging (DWI) and blood oxygen level-dependent (BOLD) magnetic resonance imaging (MRI) in the assessment of renal hypoxia in an experimental model of mice with lupus nephritis (LN).Methods MRL/lpr mice (n=13) were studied and C57BL/6 mice (n=10) served as controls.Urinary albumin to creatinine ratio (ACR),serum creatinine (Scr),anti-ds-DNA antibody,and complement C3 levels were measured.The mice underwent coronal echo-planar DWI and BOLD MRI of the kidneys when they were 14-16 weeks old.Hypoxyprobe was administered intraperitoneally to the mice 1 hour before they were sacrificed.The distribution of HypoxyprobeTM-1,hypoxia-inducible factor 1 α (HIF-1 o) and heme oxygenase-1 (HO-1) in renal tissues was detected by immunohistochemical analysis and Western blotting.Results Urinary ACR,Scr and anti-ds-DNA antibody levels in MRL/lpr mice were significantly higher than that in C57BL/6 mice.It was found that HypoxyprobeTM-1,HIF-1o and HO-1 distributed widely in the renal tissue of MRL/lpr mice,and closely associated with the renal tubulointerstitial lesion.The mean apparent diffusion coefficient (ADC) value of kidneys in MRL/lpr mice was (1.52±0.27) × 10-3 mm2/s,and the mean R2* values of the renal cortex and medulla were (30.95 ±4.59)/s and (23.43± 3.06)/s respectively,all significantly lower than that in C57BL/6 mice (P=0.037,P=0.030 and P=0.043,respectively).The ADC of medulla was negatively correlated with urinary albumin to creatinine ratio (r=-0.364,P=0.032;r=-0.329,P=0.050),the ADC of cortex was negatively correlated with the level of serum creatinine (r=-0.814,P=0.014;r=-0.755,P=0.031) when b value was 500 s/mm2 and 800 s/mm2,and the mean R2* value was negatively correlated with the degree of tubulointerstitial lesions and the expression of hypoxia parameters (all P ＜ 0.05).Conclusions Renal hypoxia may play an important role in renal tubulointerstitial lesion.Functional MRI may be used to monitor renal function changes,pathological injuries and renal hypoxia in LN.

OBJECTIVETo observe the distribution of constitution types of Chinese medicine (CM) in patients with osteonecrosis of femoral head (ONFH).

METHODSTotally 130 ONFH patients were recruited. Constitution types of CM were identified in all patients. Distribution features of constitution types of CM in ONFH patients were observed. The differences of distribution in gender, age, single or bilateral hips, course of disease, staging, cause, and region were also analyzed.

RESULTSSeventy patients were of complicated constitutions, while 60 patients were of single constitution. Among the 60 single constitution cases, yang-deficiency constitution [18 (13.9%)], damp-heat constitution [10 (7.7%)], blood-stasis constitution [7 (5.4%)], and qi-deficiency constitution [7 (5.4%)] were mainly distributed. Of the complicated constitutions, yang-deficiency dominated constitution occupied the top ratio [30 (23.1%)], followed by blood-stasis dominated constitution [15 (11.5%)], damp-heat dominated constitution [9 (6.9%)]. By putting them together, yang-deficiency constitution occupied the top constitution of CM [48 (36.9%)], followed by blood-stasis constitution [ 22 (16.9%)] and damp-heat constitution [19 (14.6%)]. The aforesaid three constitutions accounted for 68.5% of the total. There were no statistical distribution differences in gender, age, single or bilateral hips, course of disease, staging, or cause.

CONCLUSIONYang-deficiency constitution, damp-heat constitution, and blood-stasis constitution were liable constitutions of CM in ONFH patients.

Objective To explore the role of dendritic cell-specific intercellular adhesion molecule-3-grabbing nonintegrin (DC-SIGN) in the tubulointerstitial lesions of immune-mediated nephrotoxic nephritis (NTN) and the intervention regulation by anti-P-selectin lectin-EGF domain monoclonal antibody (PsL-EGFmAb). Methods WKY rats were randomly divided into control,NTN and PsL-EGFmAb-treated groups. The mrs in NTN group were injected with 1 ml nephrotoxic rabbit serum per kilogram of rat body weight; the ones in PsL-EGFmAb-treated group were injected with 2 mg PsL-EGFmAb per kilogram of rat body weight simultaneously and 2 h later after nephrotoxic rabbit serum injection; and those in control group were injected with equal volume of 0.9% saline. Renal function and pathology were observed at day 4, 7 and 14 after the induction of NTN. Distribution of DC-SIGN + dendritic cells (DCs) in renal tissues was measured by immunofluorescence. Real-time PCR was performed to examine the expression of P-selectin,RANTES, TNF-α, IL-10, IFN-γ and IL-4. Expression of MHC Ⅱ , CD80 and DC-SIGN on dendritic cells was analyzed by flow cytometry. Transendothelial migration was used to detect the ability of DCs migration. DCs ability to activate T cells was determined by mixed lymphocyte reaction (MLR). ELISA was used to detect the concentration of IFN-γ and IL-4 in the supernatant of MLR. Results At day 4, immature DC-SIGN+ DCs infiltrated the rat renal tubulointerstium of NTN group, matured at day 14, and enhanced the ability to migrate and activate T cells. The distribution of DC-SIGN + DCs was significantly related to the form of crescent, tubulointerstial lesions and renal function. In addition, expression of chemokine RANTES and proinflammatory cytokine TNF-α continuously augmented since day 4, while anti-inflammatory eytokine IL-10 decreased after markedly increased at day 4. At day 14, IFN-γ/IL-4 mRNA increased, which was obviously related to DCs maturation. The intervention of PsL-EGFmAb supressed the expression of DC-SIGN and CD80 on DCs, depressed DCs maturation, migration and ability to activate T cells,down-regulated proinflammatory cytokines and up-regulated anti-inflammatory cytokines in kidney,and thus regulated Th1/Th2 bias. At the same time, kidneys showed the decrease of crescents,improvement of tnbulointerstium damage and renal function. Conclusions DC-SIGN may mediate DCs tubulointerstitial infiltration. It may be also a potent regulator of local immune reaction imbalance and pathology of tubulointerstium. PsL-EGFmAb may depress DCs migration and downregulate DCs maturation and function through DC-SIGN, and thus having a role in prevention and treatment.

ObjectivesTo detect the effects of P-selectin on deep venous thrombosis (DVT) in nephrotic syndrome (NS). and to evaluate the molecular magnetic resonance imaging (MRI) with a P-selectin targeted conlrost agent in diagnosis of thrombosis in the early phase. Methods(1) Forty-one patients with NS hospitalized in our department from 2005 to 2006 were enrolled in this study. They were assigned into DVT group and non-DVT group according to lower limbs radionuclide imaging (RNV) with 99mTc MAA. Blood P-selectin level was measured by ELISA method. (2) P-selectin was detected both in injured vein and blood immediately, 1 h and 3 h after the dog DVT model was established. (3) The P-selectin-targeted contrast agent was developed by conjugating anti-P-selectin lectin-EGF domain monoclonal antibody (PsL-EGFmAb) which was prepared by our lab. The potential of this contrast agent used in vitro molecular imaging experiment as well as in vivo experiment in dog DVT model was investigated. Results (1) Blood P-selectin level was elevated in patients with NS. It was much higher in DVT group than that in non-DVT group. (2) Blood P-selectin level was also elevated in DVT dogs and P-selectin expressed immediately in tunica intima of injured vein and subsequently in thrombus after the model established. (3) Mural thrombus showed higher signal visualization than surrounding muscle in 30 rain after contrast agent injection. These enhanced signals exhibited P-selectin specificity and persisted from the initiation of intima lesions to 3 h after development of thrombosis. There was signficant Differences in contrast-to-noise ratio (CNR) of the experiment group and the control group (11.50±2.32 vs 2.71±0.86, P＜0.01). The same results were derived from 30 rain to 1 hafter contrast agent being injected in distal to heart part of the injured vessel, and the signal decreased 24 h later. Differences in CNR of the experiment group and the control group were also statistically significant (10.40±2.15 vs 1.93±0.57, P＜0.01). Moreover, the contrast agent did not affect the vital signs of the dog. The function of the heart, lung, liver and kidney functions remained normal after contrast administration. Conclusions P-selectin*targeted new MR contrast can be used to early locate thrombus in vivo in an early stage, which does not compromise the function of the important organs. It may become a new method for early diagnosis of thrombosis.

Objective To investigate the influencing factors of in-hospital delay using alteplase for intravenous thrombolytic therapy in patients with acute ischemic stroke.Methods From January 2006 to May 2015,220 consecutive patients with acute ischemic stroke admitted to the Department of Neurology,Tangshan Gongren Hospital Affiliated to North China University of Science and Technology were enrolled retrospectively.They all received alteplase for intravenous thrombolytic therapy.Their mean National Institutes of Health Stroke Scale (NIHSS) score on admission was 16±8.According to door-to-needle time (DNT),they were divided into either a delay group (DNT >60 min;n=151) or a non-delay group (DNT ≤60 min;n=69).The baseline data,laboratory tests,onset-to-door (OTD) time,imaging,and etiology classification of trial of org 10172 in acute stroke treatment (TOAST) of both groups were recorded.Univariate analysis was performed on both groups,and further multivariate logistic analysis was performed.Results (1) The proportion of the past history of transient ischemic attack,blood glucose level on admission,time from onset to hospital in the non-delay group were significantly higher than those of the delay group.There were significant differences between the two groups (43.5%[30/69] vs.3.3%[5/151],7.9±3.0 mmol/L vs.6.9±2.1 mmol/L,95±53 min vs.80±34 min,all P<0.05).There were significant differences in the constituent ratio of TOAST classification between the two groups (P<0.05).There were no significant differences in other baseline data and clinical features between the two groups (all P>0.05).(2) Multivariate Logistic regression analysis showed that the risks of patients with the past history of transient ischemic attack (OR,0.330,95%CI 0.109-0.998,P=0.046),elevated blood glucose levels on admission (OR,0.775,95%CI 0.657-0.914,P=0.005),prolonged onset-to-door time (OR,0.648,95%CI 0.504-0.831,P=0.013),internal carotid artery lesions (OR,0.192,95%CI 0.038-0.960,P=0.044) for occurring in-hospital delay after thrombolysis were low.Systolic pressure on admission(OR,1.275,95%CI 1.091-1.491,P=0.027)and cardioembolism(OR,3.892,95%CI 1.661-9.112,P=0.006) for occurring in-hospital delay after thrombolysisin were high.Conclusion The patients with past history of transient ischemic attack,higher blood glucose,prolonged onset-to-door time,and having internal carotid artery lesions may be cause the attention of family members and doctors,and were less prone to having thrombolytic in-hospital delay,whereas those with higher systolic blood pressure on admission and cardioembolism were prone to having in-hospital delay.

Objective This study was to explore deaf people's needs for a smooth communication with doctors and/or nurses during health consultation in the outpatient department or when being hospitalized and supply reference for compilation of sign language textbooks.Methods Purposive sampling was used and semi-structured interviews were conducted.Six deaf participants who met the inclusion and exclusion criteria were interviewed.It lased for 20 to 40 minutes for each interview.Interviews were recorded digitally and then transcribed and validated.Transcripts were analyzed using a method of thematic analysis.Results Three themes were identified,i.e.needs for sign language interpreters,needs for information and knowledge.and needs for psychosocial and emotional support.Needs for sign language interpreters meant that doctors and nurses were able to communicate with them using simple sign language instead of terminology.The required information and knowledge covered three aspects,i.e.health condition,pharmaceutical therapy,and self-care activity.Conclusions There may exist serious communicative barriers for deaf people during their health consultation in the outpatient department or when being hospitalized.There is a need for healthcare professionals who are competent in sign language to establish the health delivery environment with minimal barriers.

Objective To explore the association between PI3K polymorphisms in insulin signal transduction pathway and Alzheimer's disease (AD)risk.Methods There were three groups,including 112 cases for AD +T2D group,231 cases for only AD group,and 231 cases for healthy controls group.The polymorphisms in PI3K gene was sequenced by PCR and the concentration of PI3K in serum was tested by enzyme -linked immunosorbent assay (ELISA).Results Overall,there was significantly statistical difference in PI3K rs3730087 polymorphism among three groups (χ2 =20.99,P =0.000 3).The CC frequency of PI3K rs3730087 polymorphism in AD with T2D group and AD control group was significantly higher than that in the healthy control group.The PI3K protein level of differ-ent genotype was statistically significant (F =27.450,P <0.000 1).As for CC genotypes of PI3K rs3730087 poly-morphism,the PI3K protein level was statistically different among these three groups (F =8.096,P =0.000 6).Moreover,the PI3K protein level of the three groups was different (F =9.034,P =0.000 1),which in both AD group was lower as compared with healthy control group.Conclusion The study suggested that CC genotype of PI3K rs3730087 polymorphism in insulin signaling transduction pathway might be a risk factor for AD with T2D and it also affects the expression level of PI3K protein.However,the polymorphism is not shown to be exclusive in AD patients with T2D.