Abstract:
:Effects of pH on vascular tone and L-type Ca2+ channels were investigated using Mulvany myograph and voltage-clamp technique in rabbit basilar arteries. In rabbit basilar arteries, high K+ produced tonic contractions by 11+/-0.6 mN (mean+/-S.E.,n=19). When extracellular pH (pHo) was changed from control 7.4 to 7.9 ([alkalosis]o), K+-induced contraction was increased to 128+/-2.1% of the control (n=13). However, K+-induced contraction was decreased to 73+/-1.3% of the control at pHo 6.8 ([acidosis] o, n=4). Histamine (10 microM) also produced tonic contraction by 11+/-0.6 mN (n=17), which was blocked by post-application of nicardipine (1 microM). [alkalosis]o and [acidosis]o increased or decreased histamine-induced contraction to 134+/-5.7% and 27+/-7.6% of the control (n=4, 6). Since high K+- and histamine-induced tonic contractions were affected by nicardipine and pHo, the effect of pHo on voltage-dependent L-type Ca2+ channel (VDCCL) was studied. VDCCL was modulated by pHo: the peak value of Ca2+ channel current (IBa) at a holding of 0 mV decreased in [acidosis]o by 41+/-8.8%, whereas that increased in [alkalosis]o by 35+/-2.1% (n=3). These results suggested that the external pH regulates vascular tone partly via the modulation of VDCC in rabbit basilar arteries.
journal_name
J Korean Med Scijournal_title
Journal of Korean medical scienceauthors
Kim YC,Lee SJ,Kim KWdoi
10.3346/jkms.2004.19.1.42keywords:
subject
Has Abstractpub_date
2004-02-01 00:00:00pages
42-50issue
1eissn
1011-8934issn
1598-6357pii
200402042journal_volume
19pub_type
杂志文章abstract::Most of malignant tumors arising in ovarian and extraovarian endometriosis are carcinomas. Mixed mullerian tumor and endometrial stromal sarcoma arising in intestinal endometriosis are rarely described, but its clinicopathologic features have not been well characterized. Here we report a case of endometrial stromal sa...
journal_title:Journal of Korean medical science
pub_type: 杂志文章,评审
doi:10.3346/jkms.2002.17.3.412
更新日期:2002-06-01 00:00:00
abstract::Since a nationwide childhood vaccination with tetanus toxoid, tetanus has become a rare disease in Korea. However, we recently experienced 17 cases of adult tetanus in a university hospital during a 21-month period. Seventy percent of the patients were female, and the mean age was 63 yr (range, 29-87). The majority (8...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2003.18.1.11
更新日期:2003-02-01 00:00:00
abstract::A retrospective study was conducted to determine the mortality, causes and risk factors for death among HIV-infected patients receiving antiretroviral therapy (ART) in Korea. The outcomes were determined by time periods, during the first year of ART and during 1-5 yr after ART initiation, respectively. Patients lost t...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2013.28.7.990
更新日期:2013-07-01 00:00:00
abstract::Though the pathogenic significance and the reservoir of Ewingella americana have not been clarified, this organism has caused several pathogenic infections, especially in immunocompromised patients. We report a pneumonia in a patient with chronic renal failure, who had chronic rejection of transplanted kidney. E. amer...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2005.20.1.143
更新日期:2005-02-01 00:00:00
abstract::Atherosclerotic renal artery stenosis (RAS) usually involves the ostium and the proximal one-third of the renal artery main branch. Percutaneous renal artery angioplasty with stent placement is a well recognized treatment for atherosclerotic RAS. Occasionally, atherosclerotic RAS involves renal artery bifurcations. Ho...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2011.26.11.1512
更新日期:2011-11-01 00:00:00
abstract::Numerous musculoskeletal disorders are caused by thickened ligament, tendon stiffness, or fibrosis of joint capsule. Relaxin, a peptide hormone, can exert collagenolytic effect on ligamentous and fibrotic tissues. We hypothesized that local injection of relaxin could be used to treat entrapment neuropathy and adhesive...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2016.31.6.983
更新日期:2016-06-01 00:00:00
abstract::We investigated recent epidemiologic trends regarding campylobacteriosis vs. nontyphoidal salmonellosis (NTS), a previously known leading cause of bacterial enterocolitis in Korean children. Among 363 hospitalized children with acute inflammatory diarrhea, Campylobacter (18.7%) was the most frequently detected pathoge...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2017.32.7.1202
更新日期:2017-07-01 00:00:00
abstract::To determine which genes are regulated by thyroid stimulating hormone (thyrotropin, TSH), insulin and insulin-like growth factor-1 (IGF-1) in the rat thyroid, we used the microarray technology and observed the changes in gene expression. The expressions of genes for bone morphogenetic protein 6, the glucagon receptor,...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2007.22.5.883
更新日期:2007-10-01 00:00:00
abstract::The prognostic significance of multidrug resistance (MDR) gene expression is controversial. We investigated whether multidrug resistance gene 1 (MDR1), multidrug resistance-related protein (MRP) and lung resistance protein (LRP) mRNA expression are associated with outcomes in acute leukemia patients. At diagnosis we e...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2006.21.2.253
更新日期:2006-04-01 00:00:00
abstract::Pulmonary artery hypertension (PAH) causes right ventricular failure and possibly even death by a progressive increase in pulmonary vascular resistance. Bone marrow-derived mesenchymal stem cell therapy has provided an alternative treatment for ailments of various organs by promoting cell regeneration at the site of p...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2012.27.6.605
更新日期:2012-06-01 00:00:00
abstract:Background:The aim of this study was to evaluate the use of the Diagnostic Drawing Series (DDS) as a screening tool for the breast cancer patients with psychological distress. Methods:All of 64 patients with breast cancer participated in this study. Patients' depressive and anxiety symptoms were assessed using Patient...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e140
更新日期:2018-04-19 00:00:00
abstract::The purpose of this study was to investigate the differences in subjective acute effects of alcohol and naltrexone among those who prefer spicy food to varying degrees. Acute biphasic alcohol effects scale (BAES), visual analogue scale for craving (VAS-C), blood alcohol concentration (BAC) and food preference scale we...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2014.29.5.714
更新日期:2014-05-01 00:00:00
abstract::The endothelial nitric oxide synthase (eNOS) gene plays an important role in several biological functions. Polymorphisms of the eNOS gene have been associated with cancer. It has been suggested that the VNTR 4 a/b polymorphism may affect the expression of eNOS and contributes to tumor promotion in the mammary gland. W...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2013.28.11.1587
更新日期:2013-11-01 00:00:00
abstract::Vascular endothelial growth factor (VEGF) is a multi-functional cytokine involved in inflammation, repair and angiogenesis in asthmatic airway. This study aimed to evaluate the role of VEGF in immediate bronchoconstriction induced by TDI inhalation, and in chronic TDI-asthma patients. 11 newly diagnosed TDI-asthma pat...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2004.19.3.359
更新日期:2004-06-01 00:00:00
abstract:Background:Robot-assisted radical prostatectomy (RARP) is a feasible treatment option for high-risk prostate cancer (PCa). While patients may achieve undetectable prostate-specific antigen (PSA) levels after RARP, the risk of disease progression is relatively high. We investigated metastasis-free survival, cancer-speci...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e285
更新日期:2018-10-16 00:00:00
abstract::Recurrent spontaneous abortion (RSA) defines as two or more consecutive losses at < or = 20 weeks of gestation and affects an estimated 1 of every 100 couples wishing to have children. However, it remains a poorly understood phenomenon. Recent reports observed a significant association between highly skewed X chromoso...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2004.19.2.258
更新日期:2004-04-01 00:00:00
abstract::Infectious diseases have historically resulted in suspended or cancelled military operations. Vaccination for disease prevention is a critical component of the military's force readiness doctrine. Until recently, Korea had not recognized the importance of vaccinating military personnel. However, a 2011 meningococcal d...
journal_title:Journal of Korean medical science
pub_type: 杂志文章,评审
doi:10.3346/jkms.2015.30.4.353
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Previous studies suggest that the impact of social factors on harmful alcohol use between men and women may be different. We aimed to explore the gender-based difference in temporal trend and social risk factors associated with harmful alcohol use. METHODS:The Korea National Health and Nutrition Examination...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e23
更新日期:2018-01-22 00:00:00
abstract:BACKGROUND:Pediatric palliative care (PPC) is the active total care of children suffering from life-threatening illnesses. Palliative care includes symptom management, psychosocial support, and end-of-life care. Despite significant advances in disease diagnosis and treatment, resources for PPC of children with serious ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2018.33.e1
更新日期:2018-01-01 00:00:00
abstract::The classical triad of abdominal pain, vomiting, and bloody stool is absent in chronic intussusception for more than 2 weeks. Here, we report a 6-year-old female with recurrent abdominal pain for 2 months. Ultrasonography of the abdomen revealed an ileocolic-type intussusception. The lesion accompanying the tight fibr...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2016.31.2.321
更新日期:2016-02-01 00:00:00
abstract::Perinatal stroke in neonates can lead to disability in later life. However, its etiology and prognosis are poorly understood. The aim of this study was to describe clinical presentations and neurodevelopmental outcomes of our case series of perinatal stroke in Korea. Thirteen term and preterm neonates who were diagnos...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2010.25.6.888
更新日期:2010-06-01 00:00:00
abstract::Orthotopic liver transplantation (OLT) has evolved to become a standard treatment of choice for end-stage liver diseases. The present study was performed to evaluate the peri-operative medical factors affecting transplantation outcome and to determine if patients with type B viral cirrhosis were acceptable for OLT. A ...
journal_title:Journal of Korean medical science
pub_type: 临床试验,杂志文章
doi:10.3346/jkms.1998.13.3.299
更新日期:1998-06-01 00:00:00
abstract::In recent developments in the repair of large surgical defects where simple flap rotation may have been previously employed, myocutaneous flaps are being used because of functional advantages and to decrease the number of reconstructive procedures. The authors have employed myocutaneous flaps in 40 cases from January ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1987.2.1.1
更新日期:1987-03-01 00:00:00
abstract::Against the backdrop of population aging, this paper presents the analysis of need-standardised health care utilization among elderly in India. Based on nationally representative morbidity and health care survey 2004, we demonstrate that the need for health care utilization is indeed pro-poor in nature. However, the a...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2015.30.S2.S155
更新日期:2015-11-01 00:00:00
abstract:TWO VARIANTS OF THE INOSINE TRIPHOSPHATASE (ITPA:rs1127354, rs7270101) gene cause ITPA deficiency and protect against the hemolytic toxicity of ribavirin. We investigated the clinical significance of ITPA variants in Korean patients treated with pegylated interferon (PEG-IFN) plus ribavirin. Of the 133 patients, 108 we...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2013.28.8.1213
更新日期:2013-08-01 00:00:00
abstract::Embolization of the occlusion device after percutaneous closure of atrial septal defect (ASD) is a potential disastrous complication. The usual site of embolization is the right side of the heart including pulmonary artery, but the device embolization to the extracardiac aorta is extremely rare. Here, we report a succ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2015.30.9.1361
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:The objective of this study was to identify the effects of mycophenolate mofetil (MMF) on non-renal manifestations in systemic lupus erythematosus (SLE). METHODS:The study population comprised 439 SLE patients from the Korean Lupus Network registry who were followed up annually and completed the baseline su...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2019.34.e185
更新日期:2019-07-15 00:00:00
abstract::To establish the early morphogenetic mechanism in retinoid induced cardiac lesions, we investigated the morphology of the heart in cultured rat embryos treated with retinoic acid (RA) at 9.0 and 9.5 days post coitum (d.p.c). Wistar rat embryos were treated with RA (2 x 10(-7) M) for 6 hours from the embryonic day equi...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.1998.13.2.117
更新日期:1998-04-01 00:00:00
abstract::We describe a case of infrarenal aortic hypoplasia in a 52-yr-old woman who presented with claudication. Computed tomographic angiography revealed an abrupt absence of the infrarenal aorta, with collateral flow reconstituting the iliofemoral systems. After a polytetrafluoroethylene graft was interposed between the aor...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2010.25.6.950
更新日期:2010-06-01 00:00:00
abstract::Hyalinizing spindle cell tumor with giant rosettes (HSCTGR) is a recently described tumor, which is regarded as an unusual variant of low-grade fibromyxoid sarcoma. Proof of a metastatic potential was lacking. The patient in the report was a 35-yr-old woman who showed multiple bilateral pulmonary nodules with massive ...
journal_title:Journal of Korean medical science
pub_type: 杂志文章
doi:10.3346/jkms.2004.19.4.619
更新日期:2004-08-01 00:00:00