Genomic DNA was extracted from the blood samples of 3 patients from 1 pedigree with congenital nephrogenie diabetes insipidus (NDI) and their 12 family members.The whole coding region of the arginine vasopressin receptor 2 (AVPR2) gene was amplified by PCR and then directly sequenced,A mutation of AVPR2 gene [g1236T→C (L292P)]was found in 3 patients.The patients' mothers were found to have both mutant and normal alleles.

Objective To investigate the clinical value , the motive regularity, the temporal and spatial correlation between myocardium and adjacent pericardium of left ventricular short -axis in normal adsults by using dual pulse wave Doppler echocardiography .Methods Tissue dual pulse spectral Doppler images about segmental myocardium and adjacent pericardial of three complete cardiac cycles in 99 normal adults were collected synchronously by using dual pulse wave Doppler techenology ,6 segments were enrolled in this study, including the anterior and posterior wall at mitral valve , papillary muscles, and apex level of left ventricular short-axis view.The motive regularity of myocardium and adjacent pericardium at different levels and segments were observed .Peak speed, onset time and peak time between myocardium and adjacent pericardium in anterior and posterior wall of three valves were measured online in systolic , early diastolic, and late diastolic, and the correlation between segmental myocardium and adjacent pericardium in speed and time were analyzed.Results Dual pulse wave Doppler echocardiography showed that in left ventricular short-axis view, motion between myocardium and adjacent pericardium in the same segment had consistent direction, motions between myocardium and adjacent pericardium in anterior and posterior wall at the same level had opposite directions .Comparison of peak velocity, in anterior wall, the peak velocities of myocardium in systolic and late diastolic at mitral valve level , and the peak velocity of myocardium in systolic at papillary muscle level were lower than that of adjacent pericardium .In posterior wall, the peak velocities of myocardium in early diastolic and late diastolic at mitral valve level , the peak velocities of myocardium in systolic and early diastolic at papillary muscle level , and the peak velocity of myocardium in early diastolic at apex level were higher than that of adjacent pericardium , with statistical significance (t=-4.207, -2.078, 4.575, -2.277, -2.440, -2.292, 5.980, 2.604, all P<0.05).Comparison of onset time, the onset time of myocardium in systolic at papillary muscle level in anterior wall , and the onset time of myocardium in early diastolic at mitral valve level in posterior wall were lower than that of adjacent pericardium, with statistical significance (t =-2.447, -2.020, both P<0.05).Comparison of peak time, except the peak time of myocardium in systolic and early diastolic at mitral valve level in posterior wall was lower than that of adjacent pericardium , the remaining differences were statistically significant ( t =-3.530, -2.411, both P<0.05).Peak velocity, onset times and peak times of each segment measured between myocardium and adjacent pericardium were well correlated (r =0.407 -0.933, all P <0.01). Conclusions Dual pulse wave Doppler echocardiography can provide relativity and accordance between motive velocity and direction of left ventricular myocardium and adjacent pericardium in normal adults .It is a promising new method for the clinical diagnosis of constrictive pericarditis and differentiation with restrictive cardiomyopathy.

Osteoarthritis (Osteoarthritis, OA) is a common clinical degenerative joint disease with increased incidence rate in recent years. Animal experiment is one of the important ways to explore pathogenesis and treatment of OA, while induced animal model is the most important part in animal experiment. Intra-articular injection of drugs is a classical method for establishing animal model of OA. Choose of animal should follows the principle of correlation, appropriateness and practicability, injections should perform in accordance with experimental purposes and subject, detections means and evaluation methods also should corresponding to experimental reality. The gold standard of OA animal model and intra-articular injections has not build, need further study.
Animals ; Cytokines ; analysis ; Disease Models, Animal ; Injections, Intra-Articular ; Mice ; Osteoarthritis ; diagnosis ; etiology ; immunology ; Rabbits ; Rats

Objective To investigate the supportive care needs of liver cancer patients after interventional therapy and its influencing factors. Methods A total of 228 patients with primary liver cancer treated by interventional therapy were included. General demographic characteristics and clinical data were collected, and a questionnaire survey was conducted using 34 items of cancer patients' supportive care needs, a brief questionnaire(SCNS-SF34), Self-rating an Anxiety S cale(SAS)and a Self-rating Depression Scale(SDS). Multiple regression models were used to analyze the impact factors of demand domain score. Results The score of psychological needs, health systems and information needs, physiological and daily life needs, patient care and support needs, sexual needs of patients with liver cancer intervention were 3.15±1.31, 3.08±1.16, 2.96± 1.44, 2.60 ±1.09, and 2.60 ±1.09, rescpectively. Anxiety and depression were found in 37.19% and 46.31% of patients, respectively. The average scores of SAS and SDS were 46.79 and 51.49. Multiple linear regression analysis showed that the psychological needs of patients with scores of age and education were negatively correlated. SAS score of patients with mental health score system and demand, information demand and demand areas were positively correlated. Women patients with high SDS scores, has high score of physical and daily life needs . The score of patient care and support were positively correlated to clinical requirements in the field of TNM stage. Conclusion The medical staff should support the intervention for the different demands and the bad mental state of the patients after liver cancer interventional surgery, and effectively improve the patient's compliance and improve their quality of life.

Objective To improve the conventional method of quantitative assessment of regional cerebral blood flows(rCBF)by a perfusion CT study based on maximal slope model at the general infusion rate(

Objective To elucidate whether metformin could regulate the mRNA expression level of estrogen synthetase and ER in human uterine leiomyoma tissues. Methods (1) Seventeen pairs of uterine leiomyoma tissues and adjacent myometrium (>2 cm) were collected from patients underwent hysterectomy in Peking University First Hospital between December 2016 and January 2017. Real-time PCR was used to measure the mRNA expression level of estrogen synthetase [including cytochrome P450 cholesterol side chain cleavage enzyme (P450scc), cytochrome P450 17 α-hydroxylase (P450c17), 3-beta-hydroxysteroid dehydrogenase type 2 (3β-HSD-2), 17-beta-hydroxysteroid dehydrogenase type 1 (17β-HSD-1) and aromatase cytochrome P450 (P450arom)] and ER (including ERα and ERβ) in the uterine leiomyoma tissues and adjacent myometrium. (2) Uterine leiomyoma cells derived from uterine leiomyoma tissues were identified by immunocytochemistry method and cultured to the third generation. The treatment groups were cultured with different concentrations of metformin (10, 50 and 100 μmol/L) for 48 hours, and the control group was cultured with deionized water for 48 hours. The mRNA expression level of estrogen synthetase and estrogen receptor subtypes were measured by real-time PCR. Results (1) P450scc, P450c17, 3β-HSD-2, 17β-HSD-1, P450arom mRNA median expression levels were 112, 4, 13, 42 and 194 in the uterine leiomyoma tissues, and were respectively 114, 5, 11, 32 and 6 in the myometrium. Compared to those of the myometrium, 3β-HSD-2 and P450arom mRNA expression levels in the uterine leiomyoma tissue were significantly higher (P<0.05), while there were no significant change of mRNA expression levels among P450scc, P450c17 and 17β-HSD-1 (P>0.05). ERα and ERβ mRNA median expression levels were 208 and 116 in the uterine leiomyoma tissues, and were 24 and 95 in the myometrium. Compared to that of the myometrium, ERα mRNA level in the uterine leiomyoma tissue was significantly higher (P=0.001), while there were no significant change of ERβ mRNA level (P=0.193). (2) After cultured with different concentrations of metformin (10, 50 and 100 μmol/L), the P450arom mRNA levels in the uterine leiomyoma tissues were 9 ± 4, 8 ± 5 and 8 ± 3 respectively in the treatment groups and was 16 ± 5 in the control group. Compared to that of the control group, P450arom mRNA expression levels in the treatment groups were significantly declined (P<0.05). There were no significant different change of mRNA expression levels among 3β-HSD-2, ERα and ERβ between the treatment groups and the control group (P>0.05). Conclusions Metformin could down-regulate the mRNA expression level of aromatase in the uterine leiomyoma cells. These results indicate that metformin may inhibit the local estrogen synthesis and therefore suppress the development of uterine leiomyoma.

OBJECTIVETo study soft tissue changes observed through musculoskeletal ultrasound (MSUS) in the treatment of knee osteoarthritis with needle-knife, so as to provide MSUS basis for needle-knife in the treatment of knee osteoarthritis.

METHODSForty patients with knee osteoarthritis treated in the Third Affiliated Hospital of Beijing University of Chinese Medicine from December 2011 to December 2012 were selected according to inclusion and exclusion criteria. All the patients were treated with needle-knife release method. The VAS scores and knee joint circumference were recorded before treatment and 2 weeks after treatment. The changes of knee joint hydrops articuli and joint synovial thickness were measured through MSUS.

RESULTSThe knee pain index was 6.850 +/- 1.417 before treatment and 2.790 +/- 1.299 after treatment;the index after treatment was lower than that of before treatment. The knee joint circumference was 407.320 +/- 45.151 mm before treatment and 391.240 +/- 41.129 mm after treatment; the knee joint circumference decreased after treatment. The amount of hydrops articuli observed by musculoskeletal ultrasound showed that 47 knees were cured, 19 knees improved and 2 knees failed. The synovial membrane thickness: 43 knees cured, 17 knees improved and 8 knees failed.

CONCLUSIONThe hydrops articuli and synovial thickness of knee joint of patients with knee osteoarthritis observed under the MSUS is consistent with the main symptoms and signs, which suggests that MSUS observation on soft tissue changes before and after needle knife in the treatment of knee osteoarthritis with high reliability.

Adult ; Aged ; Female ; Humans ; Knee Joint ; diagnostic imaging ; pathology ; Male ; Middle Aged ; Needles ; Osteoarthritis, Knee ; complications ; diagnostic imaging ; pathology ; surgery ; Pain ; complications ; Synovial Membrane ; pathology ; Treatment Outcome ; Ultrasonography

OBJECTIVETo investigate the osteoblast-like characteristics of human periodontal ligament cells affected by elastic stress in vitro, and the role of corebinding factor a 1 (cbfa1) in alveolar bone formation during orthodontic tooth movement.

METHODSRat dig-labeled cbfa1 cDNA probe was prepared from SD rat osteoblasts cultured in vitro. Human periodontal ligament cells were cultured on the elastic bottom plate and stimulated by elastic stress using mechanical loading system for cultured cells in vitro. The expression of cbfa1 mRNA was detected by in situ hybridization method.

RESULTSCbfa1 mRNA express in human periodontal ligament cells stimulated by elastic stress and did not express in normal human periodontal ligament cells.

CONCLUSIONIt is suggested that elastic stress plays a role in the differentiation process from human periodontal ligament cells to osteoblast-like cells. Cbfa1 is a transcription factor in alveolar bone remodeling during orthodontic tooth movement.

Adolescent ; Animals ; Cells, Cultured ; Child ; Core Binding Factor alpha Subunits ; DNA-Binding Proteins ; genetics ; Elasticity ; Humans ; Periodontal Ligament ; cytology ; metabolism ; RNA, Messenger ; analysis ; Rats ; Transcription Factors ; genetics

BACKGROUNDIcariine is a flavonoid isolated from a traditional Chinese medicine Epimedium pubescens and is the main active compound of it. Recently, Epimedium pubescens was found to have a therapeutic effect on osteoporosis. But the mechanism is unclear. The aim of the study was to research the effect of Icariine on the proliferation and differentiation of human osteoblasts.

METHODSHuman osteoblasts were obtained by inducing human marrow mesenchymal stem cells (hMSCs) directionally and were cultured in the presence of various concentrations of Icariine. 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) test was used to observe the effect of Icariine on cell proliferation. The activity of alkaline phosphatase (ALP) and the amount of calcified nodules were assayed to observe the effect on cell differentiation. The expression of bone morphogenetic protein 2 (BMP-2) mRNA was detected by reverse transcriptase-polymerase chain reaction (RT-PCR).

RESULTSIcariine (20 microg/ml) increased significantly the proliferation of human osteoblasts. And, Icariine (10 microg/ml and 20 microg/ml) increased the activity of ALP and the amount of calcified nodules of human osteoblasts significantly (P < 0.05). BMP-2 mRNA synthesis was elevated significantly in response to Icariine (20 microg/ml).

CONCLUSIONSIcariine has a direct stimulatory effect on the proliferation and differentiation of cultured human osteoblast cells in vitro, which may be mediated by increasing production of BMP-2 in osteoblasts.

Alkaline Phosphatase ; analysis ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins ; biosynthesis ; genetics ; Cell Differentiation ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; Flavonoids ; pharmacology ; Humans ; Osteoblasts ; cytology ; drug effects ; RNA, Messenger ; analysis ; Reverse Transcriptase Polymerase Chain Reaction ; Transforming Growth Factor beta ; biosynthesis ; genetics