Objective To study the best projection position of cervical articular facet.Methods The cervical facet angle(FA) which was the joint angle between sagittal plane of body and the continual line of cervical facet was measured on cervical CT images in 63 healthy people.Results The FA was 70?~75?,during projection,the coronal plane of body in the form of 70?~75? to the film,this projection position was called cervical facet position.Conclusion Cervical facets and its interspace of joint can be showed clearly in the cervical facet position of projection.

Aim ① To observe the relationship between TGF?_1 and diabetic nephropathy in experimental rats;② To explore the effects of ACEI-fosinopril and ATRA-losartan on renal TGF?_1 in diabetic rats and their renoprotective mechanism. Method Four groups of rats were studied, A group:normal control rats;B group: strephtozotocin induced diabetic rats;C group:diabetic rats treated with fosinopril;D group: diabetic rats treated with losartan.Blood glucose, urinary excretion rates of albumin, TGF?_1,as well as the expressions of TGF?_1 protein and TGF?_1 mRNA in renal cortex and the relative kidney were measured. Result ① The urinary excretion rates of albumin and TGF?_1 in B,C ,D groups were significant higher than those in A group, fosinopril and losartan can decrease the urinary excretion rates of the two proteins but can’t make the rate normal. ② The expressions of TGF?_1 protein in renal cortex in B group was much higher than that in other 3 groups, fosinopril and losartan can inhibit the expression of TGF?_1. ③ The expressions of TGF?_1 mRNA in renal cortex increased greatest in B group, fosinopril and losartan can low the expression. Conclusion The overexpression of TGF?_1 protein and mRNA in renal cortex of diabetic rats may be one of the mechanisms of diabetic nephropathy. Fosinopril and losartan can suppress the expressions of TGF?_1 protein and mRNA in renal cortex, decrease the urinary excretion rates of TGF?_1. So alleviate the patholochanges in kidney.

At present,the combined interventional therapy that is based on transcatheter arterial chemoembolization (TACE) technique can control the progression of primary hepatocellular carcinoma (PHC)in different degrees,at the same time the clinical objectives,such as relieving portal hypertension,eliminating portal vein occlusion,controlling refractory ascites and lowering upper gastrointestinal bleeding probability,can be reliably achieved.Thus,the quality of life of the patients can be effectively improved and the survival time will be reliably prolonged.This paper aims to make a comprehensive review about the medical articles concerning TACE combined with other interventional therapies for PHC complicated by portal vein tumor thrombus,which have been published both at home and abroad in recent years,in order to provide practical help for clinical diagnosis and treatment of PHC.

Objective To explore the correlation of caries susceptibility of patients with the immediate tooth polish,application of fluoride,and the patients' oral hygiene habits after interproximal enamel reduction (IER) in clinical practice.Methods The present study retrospectively collected 45 cases of IER (18 males and 27 females) in 196 tooth sites.Each sample was examined clinically and radiologically to obtain the incidence of caries,and the outcome was correlated with amount of IER,tooth polish,application of fluoride,and the brushing method and frequency for statistical analysis.Results The present study showed that there was no statistical significance among the amount of IER,the site of IER,the patients' brushing method,and the gender with the susceptibility of caries.However,there was statistical significance among the application of fluoride,tooth polish and brushing frequency with the susceptibility of caries.Conclusions The current research suggests that it is desirable to polish tooth and apply fluoride for patients with IER in clinical practices.In the meanwhile,the clinician should pay attention to patients' oral hygiene habits,especially brushing frequency,due to the positive correlation between the brushing frequency and incidence of caries.

BACKGROUND: Perturbations in bone marrow mesenchymal stem cell (BMSC) differentiation play an important role in steroid-induced osteonecrosis of the femoral head (SONFH). At present, studies on SONFH concentrate upon the balance within BMSC osteogenic and adipogenic differentiation. However, BMSC apoptosis as well as proliferation are important prerequisites in their differentiation. The hedgehog (HH) signaling pathway regulates bone cell apoptosis. Baicalin (BA), a well-known compound in traditional Chinese medicine, can affect the proliferation and apoptosis of numerous cell types via HH signaling. However, the potential role and mechanisms of BA on BMSCs are unclear. Thus, we aimed to explore the role of BA in dexamethasone (Dex)-induced BMSC apoptosis in this study. METHODS: Primary BMSCs were treated with 10 -6 mol/L Dex alone or with 5.0 μmol/L, 10.0 μmol/L, or 50.0 μmol/L BA for 24 hours followed by co-treatment with 5.0 μmol/L, 10.0 μmol/L, or 50.0 μmol/L BA and 10 -6 mol/L Dex. Cell viability was assayed through the Cell Counting Kit-8 (CCK-8). Cell apoptosis was evaluated using Annexin V-fluorescein isothiocyanate/propidium iodide (PI) staining followed by flow cytometry. The imaging and counting, respectively, of Hochest 33342/PI-stained cells were used to assess the morphological characteristics and proportion of apoptotic cells. To quantify the apoptosis-related proteins (e.g., apoptosis regulator BAX [Bax], B-cell lymphoma 2 [Bcl-2], caspase-3, and cleaved caspase-3) and HH signaling pathway proteins, western blotting was used. A HH-signaling pathway inhibitor was used to demonstrate that BA exerts its anti-apoptotic effects via the HH signaling pathway. RESULTS: The results of CCK-8, Hoechst 33342/PI-staining, and flow cytometry showed that BA did not significantly promote cell proliferation (CCK-8: 0 μmol/L, 100%; 2.5 μmol/L, 98.58%; 5.0 μmol/L, 95.18%; 10.0 μmol/L, 98.11%; 50.0 μmol/L, 99.38%, F   =  2.33, P   >  0.05), but it did attenuate the effect of Dex on apoptosis (Hoechst 33342/PI-staining: Dex+ 50.0 μmol/L BA, 12.27% vs. Dex, 39.27%, t  = 20.62; flow cytometry: Dex + 50.0 μmol/L BA, 12.68% vs. Dex, 37.43%, t  = 11.56; Both P  < 0.05). The results of western blotting analysis showed that BA reversed Dex-induced apoptosis by activating the HH signaling pathway, which down-regulated the expression of Bax, cleaved-caspase 3, and suppressor of fused (SUFU) while up-regulating Bcl-2, sonic hedgehog (SHH), and zinc finger protein GLI-1 (GLI-1) expression (Bax/Bcl-2: Dex+ 50.0 μmol/L BA, 1.09 vs. Dex, 2.76, t  = 35.12; cleaved caspase-3/caspase-3: Dex + 50.0 μmol/L BA, 0.38 vs . Dex, 0.73, t  = 10.62; SHH: Dex + 50.0 μmol/L BA, 0.50 vs . Dex, 0.12, t  = 34.01; SUFU: Dex+ 50.0 μmol/L BA, 0.75 vs . Dex, 1.19, t  = 10.78; GLI-1: Dex+ 50.0 μmol/L BA, 0.40 vs . Dex, 0.11, t  = 30.68. All P  < 0.05). CONCLUSIONS BA antagonizes Dex-induced apoptosis of human BMSCs by activating the HH signaling pathway. It is a potential candidate for preventing SONFH.
Humans ; Hedgehog Proteins/metabolism* ; bcl-2-Associated X Protein ; Caspase 3/metabolism* ; Signal Transduction/physiology* ; Apoptosis ; Apoptosis Regulatory Proteins/pharmacology* ; Dexamethasone/pharmacology* ; Mesenchymal Stem Cells/metabolism* ; Bone Marrow Cells