Abstract:
:Effects of a platelet-released, naturally occurring nucleotide, adenosine 5'-tetraphosphate (ATPP) on vascular tone were analyzed in the isolated rat aorta. Under resting tension ATPP (1 approximately 100 microM) elicited concentration-dependent contractions in endothelium-intact aortic rings in contrast to the concentration-dependent relaxation with ATP. In endothelium-denuded aortic rings, ATPP induced contraction, as ATP did, but with a greater potency. alpha, beta-methylene ATP (APCPP 50 microM), a P2x-purinoceptor antagonist, significantly inhibited ATPP- as well as ATP-induced contractions in the endothelium-denuded preparations suggesting that ATPP acts via P2x-purinoceptors. ATPP (10 approximately 100 microM) relaxed precontracted aortic rings with an intact endothelium in a concentration-dependent manner. This effect of ATPP was 3.7 fold less potent than that of ATP. However, after P2x-purinoceptor blockade, the effect became identical between the two nucleotides. Reactive blue 2, a selective antagonist of P2x-purinoceptors, significantly attenuated the ATPP-induced relaxation with no change in the ATP-induced relaxation. These results indicated that the rat aortic endothelium contains heterogeneous populations of P2-purinoceptors (possibly P2y and nucleotide receptors). Since ATPP shows dual effects depending upon the vascular tension, it may play a significant role in the physiological regulation of vascular tone.
journal_name
Yonsei Med Jjournal_title
Yonsei medical journalauthors
Lee JW,Kong ID,Park KS,Jeong SWdoi
10.3349/ymj.1995.36.6.487subject
Has Abstractpub_date
1995-12-01 00:00:00pages
487-96issue
6eissn
0513-5796issn
1976-2437journal_volume
36pub_type
杂志文章abstract:PURPOSE:This study determined the seroprevalence of herpes virus 2 in gravidas and the differences between herpes virus 2-infected and healthy gravidas. The need to screen gravidas for herpes virus 2 was also evaluated. MATERIALS AND METHODS:A retrospective analysis involving 500 gravidas who underwent herpes virus 2 ...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2012.53.2.401
更新日期:2012-03-01 00:00:00
abstract::Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominantly inherited syndrome. MEN1 is characterized by the presence of functioning and nonfunctioning tumors or hyperplasia of the pituitary gland, parathyroid glands, and pancreatic islet cells. In addition, MEN1 carriers can have adrenal or thyroid tumors a...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2008.49.4.655
更新日期:2008-08-30 00:00:00
abstract::Neoadjuvant chemotherapy prior to definitive radical surgery or radiotherapy may be effective in reducing tumor volume or clinical stage and may even enhance pelvic control and survival. However, there are significant limitations to the use of neoadjuvant therapy in the non-responder group. They include delayed total ...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.1999.40.3.207
更新日期:1999-06-01 00:00:00
abstract:PURPOSE:Recent studies show positive association of early repolarization (ER) with the risk of life-threatening arrhythmias in patients with coronary artery disease (CAD). This study was to investigate the relationships of ER with myocardial scarring and prognosis in patients with CAD. MATERIALS AND METHODS:Of 570 con...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2014.55.4.928
更新日期:2014-07-01 00:00:00
abstract::Axotomy of the vagal motor neurons by cervical vagotomy induces NADPH diaphorase staining due to increased nitric oxide synthase expression in both the rat dorsal motor nucleus and nucleus ambiguous; furthermore, cerical vagotomy leads to cell death of the dorsal motor nucleus cells. Subdiaphragmatic vagotomy axotomiz...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2001.42.2.215
更新日期:2001-04-01 00:00:00
abstract:PURPOSE:To investigate the symptoms of attention deficit hyperactivity disorder (ADHD) as reported by parents in children with intermittent exotropia [X(T)] and to determine whether strabismus surgery for X(T) affects ADHD symptoms. MATERIALS AND METHODS:Fifty-one consecutive children undergoing muscle surgery for X(T...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2012.53.4.806
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:We investigated the value of an interferon-γ release assay (IGRA) for the diagnosis of active pulmonary tuberculosis (PTB) among sputum smear negative PTB suspects in an environment with intermediate burden of PTB and high Bacillus Calmette-Guerin (BCG) vaccination rate. MATERIALS AND METHODS:We retrospectivel...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2014.55.3.725
更新日期:2014-05-01 00:00:00
abstract:PURPOSE:Coronary artery spasm (CAS) and diabetes mellitus (DM) are implicated in endothelial dysfunction, and insulin resistance (IR) is a major etiological cause of type 2 DM. However, the association between CAS and IR in non-diabetic individuals has not been elucidated. The aim of the present study was to evaluate t...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2018.59.9.1057
更新日期:2018-11-01 00:00:00
abstract::After glioma pathogenesis-related protein 1 (GLIPR1/Glipr1) was identified, the expression of GLIPR1 was shown to be down-regulated in human prostate cancer, owing in part to methylation in the regulatory region of this gene in prostate cancer cells. Additional studies showed that GLIPR1/Glipr1 expression is induced b...
journal_title:Yonsei medical journal
pub_type: 杂志文章,评审
doi:10.3349/ymj.2010.51.4.479
更新日期:2010-07-01 00:00:00
abstract:PURPOSE:Massive blood transfusios are uncommon. The goal of this study was to propose an ideal ratio for the blood component of massive hemorrhage treatment after review of five years of massive transfusion practice, in order to have the best possible clinical outcomes. MATERIALS AND METHODS:We defined a 'massive tran...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2011.52.3.469
更新日期:2011-05-01 00:00:00
abstract::Mid-ventricular obstructive hypertrophic cardiomyopathy (MVOHCM) is a rare type of cardiomyopathy, associated with apical aneurysm formation in some cases. We report a patient presenting with ventricular fibrillation, an ECG with an above normal ST segment, and elevated levels of cardiac enzymes but normal coronary ar...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2007.48.5.879
更新日期:2007-10-31 00:00:00
abstract::The purpose of this study was to compare the perioperative complication rates of reconstructive pelvic surgery and general gynecologic surgery, and to identify the predictive risk factors for perioperative complications in reconstructive pelvic surgery. The medical records of 148 reconstructive pelvic surgery patients...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2004.45.2.281
更新日期:2004-04-30 00:00:00
abstract::Secondary osteoporosis is a feature of rheumatoid arthritis (RA). In recent years, several attempts have been made to develop specific markers for monitoring connective tissue metabolism in arthritic diseases. Our purpose, in this study was to assess pyridinium crosslinks (PYD and DPYD) excretion in relation to the ac...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2002.43.4.435
更新日期:2002-08-01 00:00:00
abstract::We evaluated and compared procedural memory and auditory P300 event-related potential in age-matched normal controls (n = 15) and drug-naive patients with Parkinson's disease (n = 16). We used Gollin's incomplete picture test for visual procedural memory function and Tower of Hanoi puzzle for visuomotor procedural mem...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.1995.36.4.367
更新日期:1995-09-01 00:00:00
abstract:PURPOSE:The present study aimed to evaluate the efficacy and safety of polymer-free drug-coated BioFreedom stent implantation in comparison to coronary artery bypass graft (CABG) before major noncardiac surgery. MATERIALS AND METHODS:In a multicenter registry, 55 patients required revascularization before major noncar...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2018.59.4.480
更新日期:2018-06-01 00:00:00
abstract::Living donor liver transplantation (LDLT) was first successfully performed on a child in 1990 and the Shinshu group performed the same procedure on an adult for the first time in 1994. Over the past few years adult LDLT has been increasing worldwide because of the severe shortage of cadaveric organs, especially in loc...
journal_title:Yonsei medical journal
pub_type: 杂志文章,评审
doi:10.3349/ymj.2004.45.6.1076
更新日期:2004-12-31 00:00:00
abstract::A previously healthy 44-year-old male was admitted with the chief complaint of intermittent gross hematuria. On initial ultrasonographic and CT examination, a grossly protruding intravesical tumor was noted and, under the impression of a malignant bladder tumor, transurethral resection was performed. The histological ...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2000.41.2.273
更新日期:2000-04-01 00:00:00
abstract:PURPOSE:Although Denis classification is considered as one of most clinically useful schemes for the evaluation of spinal fracture, there is little documentation on the relationship between fracture pattern and the neurologic recovery. The purpose is to evaluate the correlation between the fracture patterns according t...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2013.54.3.715
更新日期:2013-05-01 00:00:00
abstract:PURPOSE:A high risk of cardiovascular disease (CVD) is reported for HIV-infected individuals. While a link between abacavir and CVD risk is suggested, an association between abacavir and hypertension remains unclear. This study evaluated hypertension risk with abacavir use in comparison to non-abacavir antiretroviral t...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2018.59.10.1245
更新日期:2018-12-01 00:00:00
abstract::This study aimed to identify the association between gamma-aminobutyric acid-A (GABA-A) receptor subunit beta3 (GABRB3) gene and autism spectrum disorders (ASD) in Korea. Fifty-eight children with ASD [47 boys (81.0%), 5.5 +/- 4.1 years old], 46 family trios, and 86 healthy control subjects [71 males (82.6%), 33.6 +/-...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2009.50.2.304
更新日期:2009-04-30 00:00:00
abstract:PURPOSE:The purpose of this study was to investigate the effects of short-term and very short-term exposure to particulate matter (PM) exceeding the daily average environmental standards for Korea (≤100 μg/m³ for PM10 and ≤50 μg/m³ for PM2.5) on on asthma-related hospital visits. MATERIALS AND METHODS:This was a popul...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2019.60.10.952
更新日期:2019-10-01 00:00:00
abstract::Granular cell tumors (GCTs) are soft tissue tumors, which are thought to be derived from Schwann cells. Although most GCTs are reported to arise in tongue and oral cavity (30-50%), they can appear on any anatomic sites, even visceral organs. Herein, we report 5 cases of GCTs on unusual anatomic locations, such as palm...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2015.56.6.1731
更新日期:2015-11-01 00:00:00
abstract:PURPOSE:This study aimed to explore the effects and mechanisms of long non-coding RNA (lncRNA) anti-differentiation non-coding RNA (ANCR) on the osteogenesis of osteoblast cells in postmenopausal osteoporosis (PMOP). MATERIALS AND METHODS:Mice models of PMOP were established. ANCR expression and intracellular calcium ...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2019.60.8.751
更新日期:2019-08-01 00:00:00
abstract::We report a case of epidermolysis bullosa simplex, Dowling-Meara type (EBS-DM), which was associated with congenital pyloric atresia (PA) and various urologic abnormalities, a diagnosis confirmed by immunofluorescence mapping and electron microscopic findings. Immunofluorescent mapping showed the serum from a patient ...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2000.41.3.411
更新日期:2000-06-01 00:00:00
abstract::A 44-year-old woman underwent surgery for an asymptomatic primary tumor of the heart located in the right atrium. The tumor was detected incidentally during follow-up computed tomography for a resected breast cancer. The mass, lying along the lower portion of the right atrial septum, was homogenous and cystic in natur...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2007.48.6.1043
更新日期:2007-12-31 00:00:00
abstract:PURPOSE:To compare the outcomes of thoracic endovascular aortic repair (TEVAR) with those of open repair for descending thoracic aortic aneurysms (DTAA). MATERIALS AND METHODS:We compared the outcomes of 114 patients with DTAA and proximal landing zones 3 or 4 after TEVAR to those of 53 patients after conventional ope...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2015.56.4.904
更新日期:2015-07-01 00:00:00
abstract:PURPOSE:To investigate the therapeutic effectiveness of ultrasound (US)-guided trigger point injection for myofascial trigger points (MTrPs) in the internal rotator muscles of the shoulder in post-mastectomy patients. MATERIALS AND METHODS:This pilot study was a non-controlled, prospective, clinical trial. Nineteen po...
journal_title:Yonsei medical journal
pub_type: 临床试验,杂志文章
doi:10.3349/ymj.2014.55.3.792
更新日期:2014-05-01 00:00:00
abstract::Bortezomib, an inhibitor of 26S proteosome, is recently approved treatment option for multiple myeloma. Thalidomide, a drug with immunomodulating and antiangiogenic effects, has also shown promise as an effective treatment in multiple myeloma. Pulmonary complications are believed to be rare, especially interstitial lu...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2010.51.3.448
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:Recent evidence shows that nitric oxide (NO) may exhibit both pro-cancer and anti-cancer activities. The present study aimed to determine the differentially expressed proteins in NO-treated NIH/3T3 fibroblasts in order to investigate whether NO induces proteins with pro-cancer or anti-cancer effects. MATERIALS...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.2015.56.2.563
更新日期:2015-03-01 00:00:00
abstract::Many features of the developing nervous system are visible from external observations of intact human embryos. In this study, a photographic atlas from the 4th to the 7th week after ovulation (Carnegie stages 10-18) is provided. The neural folds began to fuse at stage 10, and the rostral and caudal neuropore were clos...
journal_title:Yonsei medical journal
pub_type: 杂志文章
doi:10.3349/ymj.1997.38.1.26
更新日期:1997-02-01 00:00:00