Abstract:
OBJECTIVE:To explore the involvement of calcium in the mechanism of hypoxic/hypoglycemic insults and nerve growth factor (NGF) protection. METHODS:Neuron viability and lactate dehydrogenase (LDH) efflux in the bathing medium in cerebral cortex cultures from fetal rats were measured. Calcium fluorescent indicator Fura-2/AM was used to measure the intracellular free calcium ([Ca2+]i). RESULTS:Massive neuronal death occurred 16-24 h following the onset of hypoxia/hypoglycemia. NGF (3-100 micrograms.L-1) dose-dependently attenuated 24 h hypoxia/hypoglycemia-induced efflux of LDH and elevated the number of surviving neurons. Hypoxia/hypoglycemia induced a reduction in [Ca2+]i in early stage and a large elevation of [Ca2+]i in later period. NGF 50 micrograms.L-1 increased [Ca2+]i to normal limits during the early stages of hypoxia/hypoglycemia and prevented the later elevation in [Ca2+]i. CONCLUSION:The [Ca2+]i elevation may be responsible for the cell damage in oxygen/glucose deprived cultures. NGF protects cerebral cortical neurons against hypoxic/hypoglycemic insults via stabilizing [Ca2+]i level or preventing the late rise in [Ca2+]i.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Wu J,Zhang Jkeywords:
subject
Has Abstractpub_date
1998-11-01 00:00:00pages
1031-4issue
11eissn
0366-6999issn
2542-5641journal_volume
111pub_type
杂志文章abstract:BACKGROUND:The usual transbronchial coagulation techniques include microwave, argon plasma coagulation (APC), electrocautery and cryotherapy. However, there are serious clinical problems in the safety of each. By analyzing the experimental data and clinical observations, we observed the variable effects of different co...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Ahmed Glaucoma Valve implantation (AGVI) is used to treat refractory glaucoma. Breakdown of the blood-aqueous barrier (BAB) has been noted after some surgical techniques. The current study was designed to assess BAB disruption after AGVI. METHODS:Anterior chamber protein content was measured by the laser fl...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-03-01 00:00:00
abstract:Background:There was still conflict on the antithrombotic advantage of ticagrelor versus clopidogrel among East Asian population with acute coronary syndrome (ACS). We considered that the baseline bleeding risk might be an undetected key factor that significantly affected the efficacy of ticagrelor. Methods:A total of...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.239306
更新日期:2018-09-05 00:00:00
abstract::The environment structure of natural nidi and epidemic areas of hemorrhagic fever with renal syndrome (HFRS) possesses characteristics of topography, hydrology, climate, soil, vegetation, and animals. The natural nidi and epidemic areas of HFRS are distributed mainly in plain and hilly regions under 500 meters above t...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVE:To examine the effect of selective head cooling (SHC) on brain cell membrane activity involving ATPase, phospholipase A2, content of total membrane phospholipids during postischemic reperfusion, so as to elucidate the possible underlying mechanism on resuscitating effect of SHC. MATERIALS AND METHODS:Complet...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:Circumferential pulmonary vein isolation (CPVI), as the basal ablation strategy for treating atrial fibrillation (AF), not only isolates the connection between the left atrium (LA) and the pulmonary veins (PVs), but also induces extensive atrial endocardia damage. This could have an effect on the sinus pulse...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVE:To investigate whether pretreatment with repeated electroacupuncture (EA) at the Baihui acupoint could induce ischemic tolerance against transient focal cerebral ischemic injury in rats. METHODS:Thirty male Sprague-Dawley (SD) rats were randomly divided into 3 groups (n=10 for each): the control group consis...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Methicillin-resistant Staphylococcus aureus (MRSA) pneumonia is an important issue with significant morbidity and mortality in clinical practice, especially in diabetes mellitus (DM). Studies focusing on S. aureus pneumonia in DM is limited, we sought to make a relatively comprehensive exploration of clinica...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000270
更新日期:2019-06-20 00:00:00
abstract:BACKGROUND:The SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery Score II (SS-II) can well predict 4-year mortality in patients with complex coronary artery disease (CAD), and guide decision-making between coronary artery bypass graft surgery and percutaneous coronary intervention (PCI)....
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.162510
更新日期:2015-08-20 00:00:00
abstract:BACKGROUND:Paraquat (PQ; 1, 1'-dimethyl-4, 4'-bipyridinium), a widely used herbicide that is structurally similar to the known dopaminergic neurotoxicant MPTP (1-methyl-1, 2, 3, 6-tetrahydropyridine), has been suggested as a potential etiologic factor for the development of Parkinson's disease (PD). Aging is an accepte...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2005-08-20 00:00:00
abstract::This is China's pilot study in the assessment of the diagnostic value of serum soluble IL-2 receptor (sIL-2R) in gastric cancer. We measured its level by ELISA method in 45 patients with gastric cancer (without metastasis: 32; with metastasis: 5; recurrence: 8) 27 gastric ulcer, 27 superficial gastritis and 44 healthy...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::[This corrects the article DOI: 10.4103/0366-6999.181956.]. ...
journal_title:Chinese medical journal
pub_type: 杂志文章,已发布勘误
doi:10.4103/0366-6999.185863
更新日期:2016-07-20 00:00:00
abstract:BACKGROUND:During the last 3 decades, China has dramatic changes of the dietary pattern among its citizens, particularly in urban cities. This study aimed to determine the nutrient intake status and factors associated with nutrient intakes of urban Chinese pregnant women now-a-day. METHODS:The multistage stratified ra...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.159354
更新日期:2015-07-05 00:00:00
abstract:BACKGROUND:Despite the growing epidemic of heart failure (HF), there is limited data available to systematically compare non-cardiac comorbidities in the young-old, old-old, and oldest-old patients hospitalized for HF. The precise differences will add valuable information for better management of HF in elderly patients...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000560
更新日期:2019-12-20 00:00:00
abstract:BACKGROUND:Intra-articular fractures of the fingers are common problems to emergency physicians and hand surgeons. Inappropriate management of these injuries may result in chronic pain, stiffness, deformity, or post traumatic arthritis. Ideal treatment necessitates the restoration of a stable and congruent joint that w...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-11-05 00:00:00
abstract:BACKGROUND:In a previous study, we demonstrated that ephrin-A2 and -A3 negatively regulate the growth of neural progenitor cells in the central nervous system. Adult mice deficient in ephrin-A2 and -A3 (A2(-/-)A3(-/-)) displayed active ongoing neurogenesis throughout the brain, and mice deficient in ephrin-A3 alone sho...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Whether an addition of OAC to double antiplatelet therapy for patients with an indication of chronic oral anticoagulation undergoing PCI-S may improve clinical outcomes is still debated. This meta-analysis aimed to update and re-compare the benefits and risks of triple antithrombotic therapy (TT) with double...
journal_title:Chinese medical journal
pub_type: 杂志文章,meta分析
doi:
更新日期:2013-07-01 00:00:00
abstract:OBJECTIVE:To investigate the incidence rate, pathologic changes, mechanisms and diagnostic methods in renal bone disease. METHODS:The blood levels of carboxyterminal parpthyriod hormone (C-PTH), 1,25(OH)2D3, calcium and phosphate, aluminum in serum and bone tissue were measured. The bone biopsy and bone scan with 99m ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVE:To observe the immediate angiographic and intravascular ultrasound (IVUS) results and their effects on one month clinical outcomes in forty-one patients who submitted to coronary stent deployment with IVUS guidance. METHODS:All patients were allocated to coronary stent implantation with high inflation pressu...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract:BACKGROUND:Volatile anesthetics (VAs) may affect varied and complex physiology processes by manipulating Ca(2+)-calmodulin (CaM). However, the detailed mechanism about the action of VAs on CaM has not been elucidated. This study was undertaken to examine the effects of VAs on the conformational change, hydrophobic site...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Some research groups have hypothesized that human rhinoviruses (HRVs) delayed the circulation of the 2009 pandemic influenza A(H1N1) virus (A(H1N1)pdm09) at the beginning of Autumn 2009 in France. This study aimed to evaluate the relationship between HRV and A(H1N1)pdm09 in pediatric patients with influenza-...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:To study the ultrastructural damages of brain tissues dynamically after middle cerebral artery obstruction (MCAO). METHODS:A middle cerebral artery obstruction (MCAO) model was reproduced in renal vascular hypertensive rats (RHR). Brain tissues in different locations were collected for eight times in row, fr...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::Atrial fibrillation (AF) is the most common sustained dysrhythmia in clinical practice. The bulk of evidence suggests that inflammatory processes, oxidative stress and matrix metalloproteinase are associated with development of AF. However, these agents may be involved in high mobility group box 1 protein (HMGB1). We ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-07-01 00:00:00
abstract:BACKGROUND:Previous studies have indicated that the cognitive deficits in patients with Alzheimer's disease (AD) may be due to topological deteriorations of the brain network. However, whether the selection of a specific frequency band could impact the topological properties is still not clear. Our hypothesis is that t...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.151654
更新日期:2015-03-05 00:00:00
abstract:OBJECTIVE:To study the effect of pericardial devascularization combined with Latarjet's innervation on portal hypertension. METHODS:Forty-eight patients undergoing pericardial devascularization combined with Latarjet's innervation were compared with 57 patients with devascularization. Clinical results were evaluated b...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1998-12-01 00:00:00
abstract::Three cases with disseminated Penicilliosis marneffei (PSM) are reported. They are all natives of Guangxi Zhuang Autonomous Region. Among them, 2 died and 1 remains alive. Their clinical features were characterized by multiple organ involvement, multiple subcutaneous abscesses, inflammatory papules, nodules and pustul...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
abstract:BACKGROUND:Chimerism analysis is an important tool for the surveillance of post-transplant engraftment. It offers the possibility of identifying impending graft rejection and recurrence of underlying malignant or non-malignant disease. Here we investigated the quantitative chimerism kinetics of 21 relapsed leukemia pat...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Airway mucus hypersecretion is an important pathophysiological feature of chronic obstructive pulmonary disease, which is closely associated with cigarette smoking. However, the signal transduction pathway from the cell surface to the nucleus through which cigarette smoke causes upregulation of mucin gene ex...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:Artificial joints present certain problems such as osteal absorption and lysis induced by wear debris which leads to loosening of the prosthesis over a period of time. Here we propose a design of an artificial magnetic suspension joint that was prepared by integrating the medical theories of modern material ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2010-12-01 00:00:00
abstract:OBJECTIVE:To investigate the role of bax in a vincristine (VCR)-induced multidrug-resistant (MDR) human gastric cancer cell line, SGC7901/VCR, in which the Bax protein expression level was significantly lower compared with that in parent cells. METHODS:A bax eukaryotic expression vector was constructed and transfected...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00