Objective To investigate the changes of thyroid hormones in patients with peripartum car-diomyopathy. Methods Seventy-two patients with peripartum cardiomyopathy were consecutively enrolled and 72 healthy women who had normal delivery were regarded as control. Among all the subjects , free triiodothyronine (FT3), free thyroxine (FT4) and thyroid-stimulating hormone (TSH) in the serum and high sensitive C-reactive protein (hs-CRP), interferon-gamma (IFN-γ) and interleukin-4 (IL-4) in the plasma were measured. Results The levels of serum FT3 and FT4 in peripartum cardiomyopathy group were significantly higher than those in control group (P < 0.05). And the level of serum TSH in peripartum cardiomyopathy group was significantly low-er than that in control group (P < 0.05). There were 24 cases with hyperthyroidism in peripartum cardiomyopa-thy group while no patient in the control group had hyperthyroidism (P < 0.05). The levels of plasma hs-CRP and IFN-γ in peripartum cardiomyopathy group were significantly higher than those in the control group (P <0.05). And the level of IL-4 in peripartum cardiomyopathy group was significantly lower than that in the control group (P < 0.05). Conclusions Serum thyroid hormones elevated in patients with peripartum cardiomyopathy and its mechanism might be related to abnormal immune reaction.

0.05),but the numbers of CD41+ cells and platelets were increased significantly(P

The chemical ingredients of sediments from single Radix Aconiti Lateralis (Fuzi, in Chinese) decoction and Radix Aconiti Lateralis-Radix Glycyrrhizae (Gancao, in Chinese) decoction were evaluated separately by HPLC-MS for exploring their ingredients difference and discussing the mechanism of toxicity reduction of Fuzi-Gaocao herb-pair, even providing the experimental basis for extracting and purifying process of TCM preparations containing Fuzi-Gancao herb-pair. The sediments samples from single Fuzi decoction (FD) and Fuzi-Gaocao decoction (FGD) were prepared separately firstly. Then these samples were analyzed in the same chromatographic and mass spectrometry condition, estimating their HPLC-MS fingerprint and identifying their compounds by Q-TOFMS. As a result, 28 compounds in sediments samples from FD were obtained, among which 25 compounds and structures were confirmed. Besides, 36 compounds in sediments samples from FGD sample were obtained including 34 confirmed compounds and structures, among which there were 11 compounds from Gancao and 25 compounds from Fuzi. However, according to these confirmed compounds, alkaloids compounds in sediments samples from FGD were significantly different from that in sediments samples from FD. This result showed the fact that there would be some influences on alkaloid compounds in decoction after the combination of Gancao. In this study, the experiment basis of the mechanism of toxicity reduction of Fuzi-Gaocao herb-pair is provided. It also showed that much attention should be paid to the fact that there were great amount of alkaloid compounds, the effective compounds, in the sediments for which a comprehensive utilization in clinic and pharmaceutical process should be noted.

Objective To discuss the treatment effect and application value of salmon calcitonin nasal spray in the patients with postmenopausal osteoporosis.Methods 130 patients with postmenopausal osteoporosis were divided into observation group and control group by random number method,65 cases in each group.The control group was given calcium and alfacalcidol treatment,the observation group received in combination with salmon calcitonin nasal spray treatment.The clinical effect of the two groups was recorded.Results The total effective rate of the treat-ment group was 95.38%,which of the control group was 84.62%,the difference between the two groups was statisti-cally significant (χ2 =4.188,P<0.05 ).After treatment,the tuberosity bone mineral density,femoral neck BMD, L1 -4 lumbar spine bone mineral density of the observation group were (0.69 ±0.15)g/cm2,(0.77 ±0.21)g/cm2, (0.98 ±0.26)g/cm2,which of the control group were (0.52 ±0.08)g/cm2,(0.64 ±0.13)g/cm2,(0.81 ± 0.15)g/cm2,the differences between the two groups were statistically significant (t=8.062,4.243,4.566,all P<0.05).After treatment,the calcitonin,beta collagen fragment,osteocalcin of the observation group were (2.97 ± 0.86)ng/L,(0.11 ±0.01)ng/mL,(7.18 ±1.14)ng/mL,which of the control group were (2.41 ±0.43)ng/L, (0.35 ±0.08)ng/mL,(15.89 ±3.53)ng/mL,the differences between the two groups were statistically significant (t=4.695,24.000,18.930,all P<0.05).Conclusion Salmon calcitonin nasal spray in the treatment of patients with postmenopausal osteoporosis can reduce pain,inhibit osteoclast activity,promote bone formation,prevent bone loss and increase bone mass,it is safe and worthy of popularizing in clinical application.

Objective To study on the effect of indicator animals in plague surveillance throngh detecting F1 antibody against Yersiniapestis(Y.pestis)in indicator animals in wild rat plague foci,provide scientific evidence for plague control and determining the range of epidemic area.Methods According to investigation scheme of wild rodents plagne foci in Yunnan Province,indicator animals Canis familiarils and Felis catu(C.familiarils and F.catus)related to the plague were investigated in 75 villages,14 township and 10 counties around Yulong County,and living rodents were captured by cage,sera of indicator animals and rodents relevant to plague were simultaneously collected and detected for F1 antibody against Y.pestis using indirect hemagglutination(IHA).Results Seropositivity rate of indicator animals were 6.76%(202/2987),being 24.69% in C.familiaris and 24.69% in F.catus,there were statistical significance(X2＝87.32,P＜0.01)between C familiaris and F catus,the latter beingmore than the former.But F1 antibody of rodents sera were not detected,its seropositivity rate was zero.there was a statistical significance(P＜0.01)between indicator animals and rodents.Conclusions Through serocpidemiological survey of indicator animals,new wild rat plague natural focus has been confirmed in YuLong County and Gucheng District in LiJiang City,therefore,serocpidemiological surveillance of indicator animals is very important for plague control and prevention.

OBJECTIVETo investigate the effects of specific RNA interference (RNAi) to Notch ligand Delta1 on proliferation and differentiation of human dental pulp stem cells (DPSC).

METHODSDPSC were infected by lentivirus vectors carrying Delta1-RNAi. DPSC were divided into three groups, DPSC/Delta1-RNAi group, DPSC/wt group and DPSC/vector group as control. Cell counting kit-8 (CCK-8) assay and flow cytometry were used to evaluate the proliferation of DPSC. Expression of proliferating cell nuclear antigen (PCNA) was examined with immunohistochemical staining. All groups were cultured in an odonto-inductive medium and were observed under microscope. The number of mineralization nodules was counted after Alizarin red staining. Alkaline phosphatase (ALP) activity and the expression of dentin sialophosphoprotein (DSPP) were detected by ALP activity assay and Western blotting.

RESULTSCompared with DPSC/wt or DPSC/vector separately, proliferating rate and S-cycle of DPSC/Delta1-RNAi was significantly lower. The S phase and proliferation index (PI) decreased markedly from 22.32 ± 2.35 and 33.68 ± 4.19 (DPSC/Delta1-RNAi) to 5.44 ± 0.91 and 16.00 ± 6.07 (DPSC/wt). The PCNA staining of DPSC/Delta1-RNAi was evidently weaker. DPSC/Delta1-RNAi group had more calcified cell nodules than the other two control groups, and ALP activity and DSPP expression of DPSC/Delta1-RNAi group increased markedly.

CONCLUSIONSDelta1-RNAi induced by the lentivirus vectors may inhibit DPSC proliferation and differentiation. Notch-Delta signal pathway plays an important role in self-renewal and differentiation.

Cell Differentiation ; Cell Proliferation ; Cells, Cultured ; Dental Pulp ; cytology ; metabolism ; Epithelial Cells ; Extracellular Matrix Proteins ; biosynthesis ; Genetic Vectors ; Homeodomain Proteins ; Humans ; Lentivirus ; Phosphoproteins ; biosynthesis ; RNA Interference ; Sialoglycoproteins ; biosynthesis ; Signal Transduction ; Stem Cells ; metabolism

A series of [1,3]dioxolo[4,5-f]isoindolone derivatives were designed, synthesized and evaluated as inhibitors of acetylcholinesterases (AChE). Furthermore, their effects on memory impairment of mice induced by scopolamine were investigated with step-through test. The results suggested that most of the target compounds exhibited potential inhibition on AChE with IC50 values at micromolar range. Compounds I1 (IC50 value of 0.086 μmol · L(-1)) and I2 (IC50 value of 0.080 μmol · L(-1)) showed the strongest AChE inhibitory activity, which are equipotent to donepezil (IC50 value of 0.094 μmol · L(-1)). Moreover, compounds I1-I4 could improve the memory impairment induced by scopolamine in mice.
Animals ; Cholinesterase Inhibitors ; chemical synthesis ; chemistry ; Dioxoles ; chemical synthesis ; chemistry ; Drug Design ; Indans ; Inhibitory Concentration 50 ; Isoindoles ; chemical synthesis ; chemistry ; Memory Disorders ; drug therapy ; Mice ; Piperidines ; Scopolamine Hydrobromide

OBJECTIVETo explore clinical outcomes and advantages of anterior small-incision focus debridement with posterior internal fixation through muscle spa ring in treating patients with lumbar spinal tuberculosis.

METHODSFrom February 2010 to February 2014, totally 82 patients with lumbar spinal tuberculosis were treated by posterior individual fixation with small-incision focus debridement,including 50 males and 32 females with an average of 50.5 years old. All patients were divided into two groups according to different procedures. Forty-nine patients in group A were treated with anterior small-incision focus debridement with posterior internal fixation through muscle spa ring at stage I ; and 33 patients in group B were treated with focus debridement with posterior internal fixation by extraperitoneal approach at stage I . Postoperative mechanical ventilation time, preoperative and postoperative Cobb angle, visual analogue scale (VAS), erythrocyte sedimentation rate (ESR) and Frankel grading were observed and compared. Postoperative complications, stability of internal fixation and bone union were compared.

RESULTSAll patients were followed-up from 15 to 36 months with an average of 23.7 months. Psoas abscess of three patients in group A and 1 patient in group B on the opposite side increased and were healed by the secondary apocenosis. The other 78 cases were healed at stage I, and no sinus tract formation, incisional hernia, leakage of cerebrospinal and occurrence of spinal tuberculosis were occurred. Fracture healing time ranged from 3 to 7 months with an average of 4.6 months. Postoperative mechanical ventilation time and VAS score in group A was better than group B. There were no statistical differences in Cobb angle, ESR and Frankel grading at the final following-up between two groups.

CONCLUSIONAnterior small-incision focus debridement with posterior internal fixation through muscle spa ring in treating patients with lumbar spinal according to degree of damage is a safe and effective method.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Debridement ; methods ; Female ; Fracture Fixation, Internal ; Humans ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; methods ; Treatment Outcome ; Tuberculosis, Spinal ; surgery ; Young Adult

Autopsy ; Fetus ; Heart Neoplasms ; pathology ; Humans ; Rhabdomyoma ; pathology ; Tuberous Sclerosis ; pathology

This paper introduces an 16-lead digital EEG signal acquisition system, which applies MCU MSP430 as central control unit with high performance analog devices and high speed multi-channel, multi-bit analog-to-digital converter as peripheral to retrench analog circuit. Data is transferred to PC by USART interface. Software on PC based on virtual instrument technology realizes real-time detection, display and storage. The system has many advantages such as high precision, stable performance, small volume and low power dissipation, thus provides a new means for digital EEG signal acquisition.
Analog-Digital Conversion ; Electroencephalography ; instrumentation ; Equipment Design ; Signal Processing, Computer-Assisted ; instrumentation ; Software