Objective To study the anti-inflammation mechanism of Jinzhuyalong Ershiwuwei coral capsule on cervical spondylosis by investigating Jinzhuyalong Ershiwuwei coral capsule on PLA2 in degenerated cervical intervertebral discs.Methods 60SD rats (SPF) were divided into a control group (15),a medicine model control group (15),a medicine modle 1 group (15),and a medicine model 2 group (15) by random lottery; Medicine model 1,2 groups were given Jinzhuyalong Ershiwuwei coral capsule powder 0.33 × 5 g/kg 0.66×5 g/kg,and added 1 ml distilled water dilution lavage,l/d,90 d,The unbalance of power cervical spondylosis animal models were chosen and C4～5 neck intervertebral discs were taken after 90 days.Millipore colorimetry methods were used to measure PLA2 activity in C4～5 cervical intervertebral discs.Results The PLA2 activity of the cervical intervertebral disc (12.37 ± 4.21) IU/mg · min-1 in the model group was significantly higher than the control group(2.56± 1.19)IU/mg· min-1 (P＜0.05).The cervical intervertebral disc PLA2 activity of medicine model group 1 (8.56± 2.13)IU/mg · min-1 and medicine model group 2 (5.58 ±2.39)IU/mg· min-1 was lower than the model control group(12.37±4.21)IU/mg· min-1,with significant differences (both P＜0.01).Conclusion Jinzhuyalong Ershiwuwei coral capsule could down regulate PLA2 activity in degenerated cervical intervertebral discs,and also decrease the production of some inflammaroty mediators.

Objective To assess the value of contrast enhanced ultrasound (CEUS) in diagnosing subtypes of postpartum placenta accreta.Methods 31 puerperal clinically diagnosed of postpartum placenta accreta were collected.They were inspected by using CEUS and 2-dimensional color Doppler ultrasound,respectively.The operation was used as a reference.Results Both 2-dimensional color Doppler and CEUS could identify the sizes of residual placenta for the patients,but CEUS showed more explicit boundary for placenta and uterus and the rich/poor blood flow areas in the placenta.Among the 31 patients,7,23 and 1 were classified of accreta,increta and percreta,respectively,by using 2-dimensional color Doppler ultrasound,while 11,16 and 4 were classified of accreta,increta and percreta,respectively,by using CEUS based on the myometrial thickness and contrast agent subsided time.With respect to operation,10 patients were confirmed of accrete,with the other diagnosed of increta and percreta.The misclassification rate of 2-dimensional color Doppler ultrasound was 19.6 ％,while CEUS had only 6.5 ％.CEUS had a good agreement with operation (Kappa =0.859,P ＜ 0.001).Conclusions CEUS has higher accuracy in diagnosing subtypes of postpartum placenta accrete compared with 2-dimensional color Doppler ultrasound.CEUS can increase the accuracy and reliability for diagnosing those who were clinically considered of postpartum placenta accrete,and can provide helpful guidelines for clinical treatment.

OBJECTIVETo evaluate the effect of stretch on sarco(endo)plasmic reticulum Ca2+-Mg2+ ATPases activity and mRNA level and study the remodeling reaction of muscle in a variety of mechanical environments.

METHODSMyoblast from maxillofacial skeletal muscle of one-week-old male Sprague-Dawley rat was cultured and stretched cyclicly using a four-point bend device. Inorganic Phosphorus test was used to compare the activity of Ca2+-Mg2+ ATPases of myoblast before and after stretch. RT-PCR was also used to observe the Ca2+-Mg2+ ATPases mRNA level.

RESULTSThe activity of Ca2+-Mg2+ ATPases of myoblast down regulated significantly in 4 hours. During the period of 8 hours to 24 hours, up-regulation followed then returned to control level at the 48 hour point. RT-PCR showed that Ca2+-Mg2+ ATPases mRNA level were elevated by stretch, particularly at 2 hour and 48 hour point.

CONCLUSIONThe results suggested a transcriptional control of Ca2+-Mg2+ ATPases activity was involved in the muscle remodeling process induced by stretch.

Animals ; Ca(2+) Mg(2+)-ATPase ; metabolism ; Cells, Cultured ; Gene Expression Regulation ; Male ; Myoblasts ; enzymology ; Rats ; Rats, Sprague-Dawley ; Sarcoplasmic Reticulum ; enzymology

Objective To retrospectively analyze the clinical epidemiology features of adult idiopathic membranous nephropathy (IMN) in Zhongshan Hospital,and to investigate their therapeutic effect and its possible influence factors.Methods A total of 183 patients admitted to the Zhongshan Hospital of Fudan University and diagnosed as IMN by renal biopsy from January 2013 to December 2015 were involved.Their baseline information including demographics and pathologic was collected.Patients were followed up for at least 12 months.Serum albumin ＜ 30 g/L and 24 h urine protein ＞ 3.5g were defined as nephrotic syndrome (NS).IMN patients were divided into NS and non-NS groups and compared.Furthermore,the baseline data of remission and no remission patients were compared,and the correlations of their baseline data with conservative and immunosuppressive therapy were assessed by logistic regression analysis.Results (1) IMN accounted for 11.1％ of renal biopsy cases in our hospital,with an average age of 57 years and 59.6％ male patients.(2) Compared with patients without NS,IMN patients with NS were older,had a shorter time from the onset to receive renal biopsy,lower estimated glomerular filtration rate,and higher total cholesterol,low density lipoprotein cholesterol,triglyceride and serum creatinine (all P ＜ 0.05).(3) The effective rate of conservative treatment in IMN patients without NS was 65.7％,and the ineffective group had higher triglyceride compared with the effective group (P=0.019).(4) The effective rate of immunosuppressive therapy in IMN patients with NS was 81.2％,and low serum albumin was an independent risk factor for the poor efficacy of immunosuppressive therapy (OR=1.202,95％ CI 1.003-1.440,P=0.046).(5) The effective rate of conservative treatment in IMN patients with NS was 55.5％,and low serum albumin was an independent risk factor for the poor efficacy of conservative treatment (OR=1.629,95％CI 1.047-2.536,P=0.023).Conclusions The detection rate of IMN is increasing year by year,but the remission rate of conservative treatment is still not low in mild and moderate patients.For the patients without NS,high triglyceride may predict a poor effect of conservative treatment.Hypoproteinemia is a predictor of poor effect,no matter what a NS patient takes immunosuppressive therapy or conservative treatment.

Objective: To measure the carotid viscoelasticity using ultrasound shear wave dispersion (USWD), and to explore the correlation between the viscoelasticity and hemodynamics. Methods: Forty-fve volunteers without history of cardiovascular and cerebrovascular events were recruited and divided into elder group (≥50 years old, n=23) and younger group (<50 years old, n = 22) according to the median age. The common carotid arteries were detected by USWD, and SWER (elastic index) and SWDR (viscous index) were obtained. Hemodynamic parameters, including velocity time integral (VTI), peak systolic velocity (PSV), end-diastolic velocity (EDV), and mean flow velocity (MFV), were measured using Doppler ultrasound. Correlations between SWER, SWDR and hemodynamic parameters were analyzed using Pearson analysis. Results: The SWER, SWDR, VTI, PSV, EDV and MFV in the elder group were significantly lower than those in the younger group (P<0.05, P<0.01). The SWER was positively correlated with VTI, PSV, EDV and MFV (r=0.354, 0.400, 0.467 and 0.310; P<0.01, P<0.05). The SWDR was negatively correlated with VTI and PSV (r= - 0.481 and - 0.522, both P<0.01), but positively correlated with MFV (r=0.352, P<0.01). Conclusion: USWD may identify the change of carotid viscoelasticity, and the change of viscoelasticity is related to hemodynamics.

OBJECTIVETo study the effect of growth hormone (GH) on the proliferation and type II collagen secretion of chondrocytes of mandibular condyle in rabbit in vitro.

METHODSFlow cytometry (FCM) and immunohistochemical technique were employed to observe the possible changes.

RESULTS(1) The exogenic GH can enhance the proliferation and synthesis of DNA of the chondrocytes of mandibular condyle in rabbit in vitro. The suitable concentration of GH is 10 microg/ml. The synthesis of DNA reaches the highest level after 12 hours, while the proliferation index (PI) hits the highest after 24 hours. (2) GH (10 microg/ml) can stimulate the secretion of type II collagen of the chondrocytes.

CONCLUSIONThe exogenic GH can enhance the proliferation, the synthesis of DNA and the secretion of type II collagen of the chondrocytes of mandibular condyle in rabbit in vitro.

Animals ; Cartilage, Articular ; cytology ; Cell Proliferation ; drug effects ; Cells, Cultured ; Chondrocytes ; drug effects ; secretion ; Collagen Type II ; drug effects ; Growth Hormone ; pharmacology ; Mandibular Condyle ; cytology ; Rabbits

Objective To investigate the basic distribution of endemic areas in the type of drinking water arsenism and in Xiantao City,Hubei Province,and to offer a scientific basis for control and prevention.Methods According to"the Chinese Scheme of Implementing Surveillance of Distribution of Endemic Arsenism",considering with the special geography feature of Xiantao,both sampling and overall survey were used in 7 towns chosen.The water arsenic content was determined by half quantitative fast reagent-box method.We began to search for clues and patients according to the endemic areas and the families with high arsenic wells.Results High endemic arsenic water sources were distributed in 7 the towns(districts or farms).In 81 villages of Xiantao City,35 villages had drinking water arsenic content exceeding 0.05 mg/L,accounting for 43.21%(35/81).In 4020 screened wells,269 had arsenic content higher than the national standard,the detective rate of high arsenic wells(more than 0.05 mg/L)was 6.69%(269/4020),with the highest rate in Shahu Seed Plant being 13.56%(115/848).The population exposed to high arsenic was 1091,in a rate of 5.75%(1091/18 975),in which 281 children were exposed in a rate of 5.82%(281/4826).In Shahu Seed Plant,467 people including 129 children were exposed to high arsenic, accounting for 13.26%(467/3522)and 12.91%(129/999),respectively.Conclusions High arsenic sources widely exist in Xiantao City,especially in Shahu Seed Plant,where arsenic content,the exposed rate of population and children are high.Therefore,prevention and control should be carried out in the southeast as soon as possible,as well as in other places where situation is less serious.

OBJECTIVETo elucidate the relationship between collagen degradation and cervical ripening by detecting dynamic expressions of matrix metalloproteinases 2 (MMP-2) and 8 (MMP-8) in rat cervix.

METHODSPF rats were divided into 5 groups (n=6), namely non-pregnancy estrus interval group, gestational days 10, 16, and 19 groups, and immediately postpartum group. The wet weight of the cervix was measured and HE staining was used to display the general structure of the cervix. VG staining was applied to visualize the collagen fibers and muscular fibers. Immunohistochemistry was performed to observe the expressions of MMP-2 and MMP-8 in the cervix.

RESULTSHE staining showed that the rat uterine cervix consisted mainly of fibroblasts and fibrous connective tissues. A small quantity of neutrophils could be seen in the cervix stroma of the rats immediately after immediately parturition, but not at the other time points. The wet weight of the antepartum cervix had increased, and a more obvious increase was seen in the wet weight of the cervix immediately after parturition. The collagen fibers of the cervix consisted of collagen fibers and smooth muscle fibers, and their proportions showed no significant variation at the time points around the parturition. Immediately after parturition, the collagen fibers and muscular fibers in the cervix became loosened as compared with that before parturition. MMP-2 expression was found in the cervical stroma but not in the squamous epithelium in nonpregnancy, term pregnancy, and immediately after parturition; the smooth muscle cells, vascular wall, and stromal fibroblasts showed positive expression of MMP-2. Enhanced intensity of MMP-2 staining was seen in term pregnancy and postpartum group in comparison with that in the other groups. MMP-8 expression was observed in the cervix of rats immediately after parturition, with scattered neutrophils positive for MMP-8 spotted in the stroma of the ripened cervix. MMP-8 expression was not detected in the other groups.

CONCLUSIONRipened cervical fibrous tissue becomes loose and broken, and cervical ripening is accompanied by infiltration of neutrophils from exogenous vessels. These changes are particularly evident after parturition. MMP-2 and MMP-8 cooperate to degrade the cervical fibers, leading to cervical softening and expansion.

Animals ; Cervical Ripening ; metabolism ; Cervix Uteri ; enzymology ; Female ; Matrix Metalloproteinase 2 ; metabolism ; Matrix Metalloproteinase 8 ; metabolism ; Pregnancy ; Rats ; Rats, Sprague-Dawley

Objective To examine the changes of oxidative stress biomarkers in peripheral serum of patients with allergic rhinitis (AR) , so as to investigate the role of oxidative stress in pathogenesis of AR. Methods The levels of serum nitric oxide (NO), malondidehyde (MDA) , as well as the activities of serum nitric oxide synthase (NOS), antioxidant enzymes including superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) were measured in 48 AR patients and 23 healthy controls. Statistical analysis was performed using a SPSS 13. 0 software. Results The level of serum NO in AR group [ (97. 92 ±73.42) μmol/L] was higher than that in healthy control group [ (64. 04 ± 29. 54) μmol/L] , the diference was significant (t = -0. 281, P <0.05). The ratio of inducible NOS (iNOS) to total NOS (TNOS) in AR group (0.51 ±0. 11) was higher than that in healthy control group (0.45 ±0. 15), the diference was significant (t = - 2.061, P < 0.05 ) . The activity of serum GSH-Px in AR group [ (258. 24 ±45.25) U/(ml ·min) ] was higher than that in healthy control group(215. 11 ±47.62) U/( ml ·min) ] , the diference was significant (t = - 2. 235, P < 0. 05 ). Although activity of SOD, concentration of MDA in AR group had a tendency to increase and decrease, respectively, no significant statistical difference was found as compared to the control group(P >0. 05). Conclusion Oxidative stress is involved in the pathophysiology of AR, however, iNOS-NO pathway may play a more important role in AR pathogenesis.

Formaldehyde is a prevalent organic solvent in industrial and indoor environment,which can seriously harm human health,so it is of great significance to develop highly sensitive formaldehyde sensors with fast response,low detection limit and long life.In this study,the NiO-In2O3 composite structure was prepared using indium-based metal organic framework(In-MOF)as the precursor,and the formaldehyde gas sensor was constructed with In2O3 and NiO-In2O3 composite structure as the sensitive material.The results demonstrated that the In2O3 material had a microflower-like structure,while the NiO-In2O3 composite structure was composed of NiO nanoparticles attached to the surface of In2O3.The sensor exhibited excellent detection performance for formaldehyde in the environment of relative humidity of 33%and 75%,especially the response characteristic of the NiO-In2O3 composite structure sensor to formaldehyde was considerably better than that of the In2O3 sensor under the same test conditions,which was closely related to the catalytic effect of NiO and the heterogeneous structure formed between NiO and In2O3.The NiO-In2O3 composite structure sensor had a response value of 21.3 and 12.6 to 10 μL/L formaldehyde when the relative humidity was 33%and 75%at 200℃.The response/recovery time was 4/6 s and 7/10 s,and the limit of detection(LOD)was 1.2×10-7 μL/L and 4.1×10-5 μL/L respectively.Meanwhile,the sensor had excellent selectivity and long-term stability.This sensor showed a wide application prospect in the field of high-performance detection of low concentration of formaldehyde gas.