Publications by authors named "Xu Xudong"

Aims: To evaluate the safety and efficacy of percutaneous closure (PC) using modified double-disc ventricular septal defect (VSD) occluders in patients with ruptured sinus of Valsalva aneurysm (RSVA).

Methods And Results: Between 2005 and 2012, 25 patients were enrolled in our study for attempted PC. There were five patients (20%) with RSVA combined with VSD and two (8%) with aortic regurgitation (AR).

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Background: This study was undertaken to compare the immediate and long-term follow-up results of balloon pulmonary valvuloplasty (BPV) between the single balloon and Inoue balloon for isolated pulmonary valve stenosis (PS).

Methods: A retrospective analysis of outcomes following BPV in 38 children using the single balloon and 42 adults using the Inoue balloon at a single institution was performed.

Results: The majority of children (76.

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Three novel furanoditerpenoids, norcaesalpinin J (1) featuring an unusual 20-norcassane hydroperoxide and phangininoxys B (2) and C (3) possessing cassane hemiketal skeletons, were isolated from the seeds of Caesalpinia sappan. Their structures were elucidated by extensive spectroscopic methods. All isolates were evaluated for the cytotoxic activities on three human cancer cell lines.

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Objective: To assess the efficacy and safety of simultaneous transcatheter corrections of perimembranous ventricular septal defect (VSD) and other congenital cardiopathies.

Patients/methods: From 2004 to 2012, 56 patients (25 male, 31 female), aged 14.2±10.

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As a common concomitant performance and the most frequent complications of transcatheter perimembranous ventricular septal defect (VSD) closure, tricuspid regurgitation (TR) has rarely been concerned. From January 2008 to December 2012, a total of 70 patients (men: 33, women: 37; mean age: 30.0 ± 17.

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This study was undertaken to compare the clinical results of traditional surgery and a percutaneous procedure for secundum type atrial septal defect (ASD) combined with pulmonary valve stenosis (PS). A total of 78 consecutive patients were identified between March 2004 and July 2012 in our institution. Thirty-five patients (44.

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Article Synopsis
  • Total saponins from Aralia elata may enhance cardiac function, though their exact mechanism is still unclear.
  • In studies with anesthetized dogs and isolated rat heart cells, AS showed improvements in cardiac contractility and coronary blood flow, indicating potential benefits for heart conditions like myocardial ischemia.
  • The benefits appeared to be linked to increased calcium transients and activation of specific signaling pathways in heart muscle cells.
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Background: The feasibility and efficacy of simultaneous percutaneous treatment of secundum type atrial septal defect (ASD) combined with pulmonary valve stenosis (PS) have not been proved.

Objective: To evaluate the safety and efficacy on the clinical benefit of simultaneous percutaneous correction of these two pathologies under local anesthesia and without transesophageal echocardiography guidance.

Methods: Transpulmonary gradient, functional status, pulmonary regurgitation (PR), and tricuspid regurgitation (TR) were studied in 35 patients undergoing percutaneous balloon pulmonary valvuloplasty and ASD closure from March 2004 to July 2012.

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Objective: To clarify an important biological characteristic of virus infecting cyanobacteria (A-4L) and to isolate, identify new bloom-forming cyanobacteria viruses, we studied A-4L concentric rings plaque formation in Anabaena sp. PCC7120.

Methods: One step growth curve was designed to estimate the latent period and burst size of A4L.

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Six new acyclic diterpenoids named Aphanamixins A-F (1-6), together with two known compounds of nemoralisin and nemoralisin C, were isolated from the stem bark of Aphanamixis polystachya (WALL) J. N. BARKER.

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Two new diterpene alkaloids, caesalminines A (1) and B (2), possessing a tetracyclic cassane-type furanoditerpenoid skeleton with γ-lactam ring, were isolated from the seeds of Caesalpinia minax. Their structures were determined by different spectroscopic methods and ECD calculation. The plausible biosynthetic pathway of caesalminines A and B was proposed.

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Background: Surgical repair is an effective method to treat ventricular septal defect (VSD) complicating acute myocardial infarction (AMI). However, the mortality rate remains high. This study was designed to assess the immediate and mid-term results of transcatheter closure of postinfarct muscular VSDs.

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Caffeoylquinic acids (CQAs) are widely distributed in various foods. While some CQAs have been shown to possess antihyperglycemic activities, whether it is beneficial for diabetes patients to ingest CQA-rich foods has still to be known. In this work, the antihyperglycemic and antihyperlipidemic effects of CQA-rich Pandanus tectorius fruit extract (PTF) was investigated in diabetic db/db mice.

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A new ursane-type triterpene, cymosic acid (1) together with two known compounds, 3β,19α-dihydroxy-2-oxo-12-ursen-28-oic acid (2) and 2α,19α-dihydroxy-3-oxo-12-ursen-28-oic acid (3), were isolated from Rosa cymosa Tratt. The structure of compound 1 was elucidated by analyzing its ¹H and ¹³C NMR, ¹H-¹H COSY, HSQC, HMBC, NOESY, and HR-ESI-MS values. The three compounds were found to display moderate inhibitory activities against nitric oxide production in lipopolysaccharide-activated macrophage cell lines, RAW 264.

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Background: The formal classification system for ruptured sinus of Valsalva aneurysm (RSVA) is from a surgical aspect and is seldom utilized for percutaneous closure. This study was undertaken to introduce a new classification for RSVA according to the angiographic features of patients.

Methods: We retrospectively studied 30 cases of RSVA undergoing percutaneous closure between July 2005 and September 2013.

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A new abietane diterpene, named as 3β-hydroxy-12-O-β-D-glucopyranosyl-8,11,13-abietatrien-7-one (1), together with four known flavonoids, was isolated from the hot water extract of the aerial parts of Clinopodium chinense. Their structures were determined by analysing the spectroscopic data including 1D, 2D NMR and HR-ESI-MS. Compound 1 tested against HepG-2 and A549 cancer cell lines expressed weak cytotoxicity.

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Two novel diterpenes, norcaesalpinin I (1) featuring an unusual ring C-contracted dinorcassane and caesalpinin U (2) possessing a highly oxygenated furanocassane skeleton were isolated from the seeds of Caesalpinia minax. Their structures were determined by different spectroscopic methods. A plausible biosynthetic pathway of 1 was proposed.

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Cassane-type diterpenes are main bioactive constituents of Caesalpinia minax HANCE. As a part of our ongoing chemical investigation of C. minax, two new degradative cassane-type diterpenes, named caesalpins I (1) and J (2), were isolated from the EtOAc extract of the seeds of C.

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The unique polycyclic fused ring systems of Daphniphyllum alkaloids, along with their extensive bioactivities, make this family of alkaloids especially attractive targets for total synthesis and biogenetic studies. Successive discoveries of new alkaloids with unprecedented skeletons have made a great contribution to structural diversities of alkaloids elaborated by plants of the genus Daphniphyllum. By the end of 2008, more than 200 alkaloids belonging to 14 different skeletal types have been isolated from different parts of plants of thirteen Daphniphyllum species.

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Background: The past decade has witnessed considerable improvement in implantation techniques for percutaneous closure of ruptured sinus of Valsalva aneurysm. This study was undertaken to compare the immediate results and mid-term follow-up of traditional surgery and percutaneous closure of ruptured sinus of Valsalva aneurysm in China.

Methods: Between January 1993 and January 2013, a total of 35 patients with ruptured sinus of Valsalva aneurysm were enrolled for attempted closure in our institution.

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Twelve phenolics, including the three new compounds balanophonin C (1), balanophonin D (2), balanophonin E (3), were isolated from the seeds of Lithocarpus pachylepis. Their structures were elucidated by various spectroscopic techniques (UV, IR, MS, 1D and 2D NMR). Compounds 1-9 were evaluated for their anti-inflammatory activities on lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW 264.

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Four novel diterpenes possessing rare five-membered peroxide ring, aphanaperoxides E-H (1-4), were isolated from stem bark of Aphanamixis polystachya. Their structures including the absolute configuration were elucidated by spectroscopic data and CD analysis. The cytotoxicities of the isolated compounds against a panel of human cancer cell lines were evaluated.

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Three new triterpene saponins, named Clinoposaponin A, Clinoposaponin B, and Clinoposaponin C along with three known triterpene saponins were isolated from the Tabellae Clinopodii. The structures of these compounds were elucidated by means of various spectroscopic analyses. All of the isolated compounds were tested against Hela, HCT-8, AGS, and MCF-7 human cancer cell lines and showed moderate cytotoxic activities with IC₅₀ values between 4.

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Eight new cassane-type diterpenes, caesalpins A-H (1-8), were isolated from the ethyl acetate extract of Caesalpinia minax. Compound 1 displayed significant antiproliferative activity against HepG-2 (IC50 4.7 μM) and MCF-7 (IC50 2.

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